WO2010133100A1 - 流体供应系统或设备中存留流体的回收利用装置及其使用方法 - Google Patents

流体供应系统或设备中存留流体的回收利用装置及其使用方法 Download PDF

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Publication number
WO2010133100A1
WO2010133100A1 PCT/CN2010/071072 CN2010071072W WO2010133100A1 WO 2010133100 A1 WO2010133100 A1 WO 2010133100A1 CN 2010071072 W CN2010071072 W CN 2010071072W WO 2010133100 A1 WO2010133100 A1 WO 2010133100A1
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WO
WIPO (PCT)
Prior art keywords
fluid
pipe
liquid
supply system
water
Prior art date
Application number
PCT/CN2010/071072
Other languages
English (en)
French (fr)
Inventor
吴星游
贺立中
Original Assignee
Wu Xingyou
He Lizhong
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 200920081082 external-priority patent/CN201589421U/zh
Priority claimed from CN200910167826A external-priority patent/CN101672426B/zh
Application filed by Wu Xingyou, He Lizhong filed Critical Wu Xingyou
Priority to CN201080021574.7A priority Critical patent/CN102483192B/zh
Publication of WO2010133100A1 publication Critical patent/WO2010133100A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0078Recirculation systems

Definitions

  • Recycling device for retaining fluid in fluid supply system or equipment and method of using same
  • the invention relates to a recycling device for retaining fluid in a fluid supply system or device, in particular to a recycling device for a liquid medium that does not meet the requirements in a liquid supply system or equipment, and more particularly to the use of a boiler, a gas water heater, an electric water heater,
  • a recycling device for retaining cold water is stored in a hot water supply system or equipment piping for bathing such as a solar water heater (including a pipe leading to a user end and a pipe in a hot water supply system or equipment).
  • the invention also relates to a system or apparatus comprising the recycling device and a method of using the recycling device.
  • Fluid including liquids, gases, flowable powders
  • a liquid supply system used for chemical production such as aeration, carbon dioxide, and pH adjustment
  • a boiler or a refrigeration device to heat or cool water for production or living in a hot or cold water supply system or Equipment
  • heating gas or heated flowing powder supply system for heating gas or flowing powder, etc.
  • the most common of these is the use of a water heater to heat the water and then use it for bathing.
  • a common feature of these fluid supply systems or devices is that the fluid is specifically treated to obtain specific physical and chemical properties and then piped to the customer for user use.
  • the physical and chemical properties of the fluid obtained through specific treatment in the pipeline will change continuously. For example, if it is heated, it will become cold, and after cooling, it will gradually rise to the ambient temperature.
  • the oxygen of the oxygen liquid will gradually evaporate, and the carbon dioxide of the liquid added with carbon dioxide will gradually evaporate, the pH of the liquid will change slowly after adjusting the pH, and so on, so that the fluid in the pipeline will become inconsistent after a certain period of inactivity. Claim.
  • the solution to this is generally to use the fresh fluid that has been specifically treated to push the undesired fluid out of the user end and discard it at the next start of use, which results in a large waste of fluid.
  • the user's faucet starts to flow out the cold water remaining in the pipe. After the cold water is drained, the hot water suitable for showering or washing can be discharged, and if it comes into contact with it, people may feel uncomfortable or even
  • the cold water that causes the cold and is drained in vain also causes a lot of waste, especially when the boiler or water heater is far from the bathroom or the washbasin or the sink.
  • Chinese patent application CN101029773A discloses a water-saving device for automatic water recirculation and reuse water heater, which uses water valve, pump and control circuit to pump the residual water in the pipeline into the water storage tank or pump it into the water heater for supply. Reuse.
  • the patent application is to withdraw the remaining water in the pipeline to the water storage tank for reuse when the machine is shut down, and it is necessary to install the user terminal control circuit at the end of each user and cancel the valve, and the water saving device needs to be installed to each user terminal.
  • the respective valves and pipes, through the control circuit to adjust the size of the switch and the water output of the wide door, the whole device is more complicated, and is not suitable for the renovated room and the installed water heater and its pipeline.
  • the Syracuse water heater circulation system sold is to open the hot water supply system or equipment and start the water heater circulation system without opening the user-side valve.
  • the pump uses the pump to connect the cold water in the hot water pipe to the water heater.
  • the user terminal valve is opened to use hot water.
  • it needs to change the original pipeline, and only recover the residual water in the main pipeline. It is not possible to recycle the residual water in the branch pipeline including the customer branch pipeline, so the water just coming out of the customer terminal valve is still cold water.
  • the technical problem to be solved by the present invention is to provide a simple recycling device that can be automatically implemented in a fluid supply system or device (both including a conduit leading to a user terminal and a fluid supply system or device inside). Recycling of non-conforming residual fluids without the need to change existing piping and valves.
  • Another technical problem to be solved by the present invention is to provide various technical solutions for returning recovered fluid to a fluid supply system or apparatus for reuse.
  • Another technical problem to be solved by the present invention is to provide such a recycling device with a component for forcibly recovering fluid, which is in front of The recovery procedure can also be initiated when another user opens the valve while the user is using it or within a short period of time after the deactivation, and the fluid just flowing out of the other user outlet can also meet the requirements.
  • Still another technical problem to be solved by the present invention is to provide a plurality of fluid supply systems or devices containing such recycling devices, particularly hot water supply systems or devices containing such recycling devices.
  • Yet another technical problem to be solved by the present invention is to provide a variety of methods of installation and use of such recycling devices.
  • a further technical problem to be solved by the present invention is to provide a method for the recycling device to be used for a plurality of users, so that it is convenient to recycle and reuse non-compliant fluids in a plurality of client pipes, and then to each user.
  • the end supplies the required fluid.
  • the recycling device is connected in series in the pipeline of the fluid supply system or apparatus, including an inlet pipe (2) for introducing fluid, an outlet pipe (3) for discharging fluid, and a fluid conveying device communicating with the inlet pipe and the outlet pipe , characterized in that at least one fluid condition sensing element is provided in or outside the pipeline of the fluid, and at least one fluid property sensing is provided in or outside the pipeline at the outlet end of the fluid supply system or equipment.
  • the component, the sensing element and the fluid delivery device are electrically coupled to a control circuit.
  • the pipe (pipe) of the present invention includes both a pipe or a pipe of a fluid supply system or equipment, and a pipe or pipe of the recycling device itself.
  • the electrical connections of the present invention include wired electrical connections and wireless electrical connections.
  • the fluid delivery device of the present invention refers to a device for pumping or pressing a fluid. The most commonly used are liquid pumps (including centrifugal pumps, reciprocating pumps, plunger pumps, etc.), gas pumps (such as vacuum pumps, fans). And so on.
  • the fluid property sensing element of the present invention is used to sense whether the performance of a fluid meets requirements, such as a semiconductor sensor for measuring fluid temperature, a thermocouple, a temperature control switch, etc., a sensor for measuring a liquid pH or a gas saturation, and a gas or a flow.
  • a powder temperature sensor or the like is disposed in or outside the piping of the fluid supply system or the outlet end of the apparatus.
  • the fluid condition sensing element of the present invention is for sensing conditions such as the flow or presence of a fluid, including a portion that senses whether a fluid flows and a portion that senses whether the fluid is evacuated, that is, a fluid flow sensing element portion and a fluid evacuation sensing element.
  • a flow sensor, flow sensor, pressure or differential pressure sensor, flow switch, water ripple switch conductance that determines the liquid condition by measuring the difference in pressure, flow, conductance, resistance, etc. when the liquid is stationary, flowing, or evacuated.
  • the sensing element portion that senses whether the fluid is flowing and has been evacuated may be two separate components or a combined component that may be placed throughout the fluid path.
  • the sensing element can be mounted in a suitable location outside the fluid conduit using telemetry.
  • a preferred way is to mount the sensing element in a conduit of the recycling device, such as between the inlet and/or outlet or between the inlet and outlet, in a separate unit with the recycling unit. This is not only easy to manufacture and sell, but also the integrated recycling unit can be installed directly in the fluid inlet or outlet of the fluid supply system or equipment without changing the original fluid supply system or equipment and its application to the customer. Pipeline.
  • the function of the above sensing element is to perceive changes in fluid performance and condition, and to control the operation of the recycling device (including start, stop or change of working state) through a circuit, that is: sensing according to the state of sensing fluid
  • the flow signal of the fluid in the pipe measured by the component, whether the fluid property in the pipe measured by the fluid property sensing element meets the required signal and/or the signal that the fluid in the pipe measured by the sensing element has been evacuated To determine or control the working state of the fluid delivery device and the flow direction of the fluid, thereby enabling the recycling device to automatically supply the desired fluid automatically or to properly supply the fluid that meets the requirements after the undesired retained fluid is withdrawn. Therefore, for an automatic control type fluid supply system or apparatus, it is also possible to control the operation of the recycling apparatus by using signals obtained by the same type of sensing elements which it has.
  • the recycling device starts to recover; when the fluid in the pipeline has been evacuated, the working state of the recycling device
  • the change for example, becomes to recover the fluid in the pipe in the other direction or to stop the recovery of the fluid; and when the fluid performance in the pipe meets the requirements or the fluid stops flowing, the recycling device stops working and returns to the normal state.
  • the recycling device communicates the inlet pipe, the outlet pipe and the fluid conveying device with a three-way structure with a fluid flow to selectively control an electric control valve or an electric valve, and the three-way structure
  • the three directions are respectively connected to the inlet pipe, the outlet pipe and the extraction pipe connecting the fluid conveying device, and the electric control or electric ceramic is electrically connected with the control circuit.
  • the technical solution can communicate the fluid delivery device to a fluid storage container through a discharge tube, and the extracted fluid can be utilized separately.
  • outlet pipe is connected to the pipe of the fluid inlet end of the fluid supply system or device through a branch pipe, and the branch pipe is provided with a branch pipe electric valve, and the outlet pipe is close to one end of the fluid storage container.
  • An export electric valve is provided, the electric valve being electrically connected to the control circuit.
  • a further technical solution may also be that the fluid storage container is connected to the conduit of the fluid inlet end of the fluid supply system or apparatus through a circulation tube and a fluid delivery device.
  • the fluid storage container is further provided with a sensing element that senses the presence or absence of fluid, and the sensing element and the fluid delivery device are electrically coupled to the control circuit.
  • the fluid storage container is communicated with the extraction pipe of the recycling device through a circulation pipe, and the outlet pipe is communicated with the pipe of the fluid inlet end of the fluid supply system or equipment through a branch pipe, wherein the circulation pipe is provided a circulating electric valve, wherein the branch pipe is provided with a branch pipe electric valve, and the outlet pipe is provided with an outlet electric valve near one end of the fluid storage container, and the fluid storage container is further provided with sensing for sensing the presence or absence of fluid or the like.
  • An element, the sensing element and the electric valve are electrically connected to a control circuit.
  • a further preferred technical solution may further be: the fluid delivery device is a two-way fluid delivery device, the recycling device is installed in a pipeline at a fluid inlet end of the fluid supply system or device, and the outlet tube is connected to the fluid At a suitable portion of the storage container, the fluid storage container is provided with a sensing element that senses the presence or absence of a fluid, and the sensing element is electrically coupled to the control circuit.
  • Another preferred embodiment of pressing the fluid back into the conduit of the fluid supply system or apparatus is: without the fluid storage vessel, direct communication of the fluid delivery device through the outlet tube to the conduit at the fluid inlet end of the fluid supply system or device The fluid drawn from the outlet tube and/or the inlet tube is thereby forced directly into the conduit at the fluid inlet end of the fluid supply system or apparatus.
  • Another preferred technical solution of the present invention is: directly connecting the fluid delivery device between the inlet and outlet tubes, and retaining the fluid supply system or equipment in the pipeline by a fluid delivery device. The fluid is reversely pressed back into the fluid input conduit of the fluid supply system or equipment through the outlet and inlet tubes.
  • the invention may also mount a disposable signal button or/and a continuous signal switch on the circuit of the recycling device, the button or / and the electrical signal given by the switch for sensing the sensing fluid performance
  • the electrical signal output by the component is instantly converted into an electrical signal that does not meet the requirements.
  • the recycling apparatus of the present invention is preferably installed in the vicinity of the fluid supply system or apparatus, particularly in the piping adjacent to the fluid inlet or outlet of the fluid supply system or apparatus.
  • the fluid performance sensing element can also be mounted adjacent to each of the customer end valves.
  • the invention also includes a fluid supply system or apparatus comprising the above-described recycling apparatus, such as a fluid supply system or apparatus that uses a gas water heater, an electric water heater, a solar water heater, or a boiler as a fluid supply source.
  • a fluid supply system or apparatus comprising the above-described recycling apparatus, such as a fluid supply system or apparatus that uses a gas water heater, an electric water heater, a solar water heater, or a boiler as a fluid supply source.
  • the method of use of the present invention comprises the steps of: opening a fluid pathway; the recycling device automatically operates according to a signal measured by the sensing element: supplying a fluid that meets the requirements, or recovering a fluid that does not meet the requirements for reuse Supply fluids that meet the requirements.
  • a specific method of use includes the steps of: installing the recycling device in a pipeline at a fluid outlet end of the fluid supply system or device; opening a fluid passage; and automatically detecting the recycling device according to the sensing component
  • the resulting signal works by supplying a fluid that meets the requirements, or after separately recovering the fluid from the recycling device to the customer line and recycling the fluid from the fluid supply system or the internal piping of the device for reuse. Supply fluids that meet the requirements.
  • Another specific method of use includes the steps of: installing the recycling device in a pipeline at a fluid inlet end of the fluid supply system or device; opening a fluid passage; the recycling device automatically measuring the sensing device The resulting signal is to: supply the fluid that meets the requirements, or recover the retained fluid from the recycling device to the fluid supply system or equipment to the customer's piping for reuse After use, supply the required fluid.
  • the valve of the user end can be opened before or after the supply system or apparatus for opening the liquid.
  • the fluid is a gas
  • the step of activating the one-time signal button or the continuous signal switch before newly opening the valve of the user terminal may also be included.
  • the recycling device is connected in series to the piping of the liquid supply system or apparatus, and the reclaiming apparatus further includes an electric valve that controls the flow of the liquid.
  • the reclaiming apparatus further includes an electric valve that controls the flow of the liquid.
  • a sensing element in the inlet pipe and the outlet pipe of the recycling device to determine whether the liquid is flowing.
  • One preferred method of mounting the sensor element that senses liquid performance is to mount it near the user end, which reduces or eliminates the effects of differences in liquid properties before and after the pipe.
  • a specific form of the recycling apparatus includes a three-way structure with a liquid flow to selectively control the electric valve, the three directions of the three-way structure leading to the inlet pipe, the outlet pipe, and the liquid delivery device, such as a liquid pump, respectively.
  • the extraction tube is electrically connected to a control circuit that controls its operation.
  • the three-way structure for controlling the flow direction of the liquid may be a reversible valve such as an electric three-way valve or an electric reversing valve or a three-way pipe equipped with an electric two-way valve in three directions.
  • all or part of the sensing element can be directly installed in the tee, for example, a hole is made in the tee, the sensing element is inserted into the back, or the tee is used. Instead of the tee, the sensing element is inserted into one of the passes and sealed.
  • the recycling device can be installed in a pipeline at the liquid outlet end of the liquid supply system or equipment, and the inlet pipe of the device is connected to the liquid supply port of the liquid supply system or equipment. , that is, the inlet pipe is connected to the pipe of the liquid supply system or the liquid inlet direction of the device, and the outlet pipe of the device is in communication with the liquid supply system or the user end pipe of the device, that is, the outlet pipe and the liquid supply system or device Pipe connection in the direction of liquid outflow.
  • the sensing element sensing the liquid condition detects that the liquid begins to flow, and the recycling device enters the working state; if the sensing element sensing the liquid performance at this time measures the liquid in the pipeline meets the requirements , the recycling device is maintained in a normal state, that is, the inlet pipe is connected to the outlet pipe, the extraction pipe is closed, the liquid pump is not activated, the liquid supply system or the device normally supplies the liquid satisfying the requirement; if the sensing element sensing the liquid property is measured
  • the signal is compared with the pre-set qualified value to determine that the performance of the liquid does not meet the requirements, that is, the electric valve and the liquid pump are controlled by the circuit to recover the liquid that does not meet the requirements, and then supply the liquid that meets the requirements.
  • the preferred way is: by controlling the electric valve of the three-way structure, the outlet pipe of the recycling device is connected with the extraction pipe, the inlet pipe is closed, the liquid pump is started, and the liquid in the recycling device to the customer pipe is taken out for reuse, and After the sensing element sensing the liquid condition measures that the liquid in the pipeline is evacuated, the electric valve of the recycling device is controlled to make the inlet pipe communicate with the extraction pipe, the outlet pipe is closed, and the liquid pump continues to work, and the recycling device is returned to the liquid.
  • Unqualified liquid in the internal piping of the supply system or equipment is withdrawn for reuse; at this point the liquid supply system or equipment begins to flow out of the treated liquid, when the sensing element sensing the performance of the liquid determines that the liquid in the pipeline has met the requirements
  • the control circuit can make the inlet pipe of the recycling device communicate with the outlet pipe, the extraction pipe is closed, the liquid pump is stopped, and the liquid supply system or equipment can normally supply the liquid satisfying the requirements.
  • the sensing element sensing the liquid condition causes the recycling device to be out of operation due to the measured flow stop of the liquid, and each electric wide door and The liquid pump returns to normal. If the recycling device is installed on the customer's valve Nearby, the liquid can be withdrawn from the user end to the liquid supply system or the piping inside the equipment.
  • the recycling device can also be installed in a liquid supply system or device.
  • the inlet pipe of the device communicates with the liquid supply pipe of the liquid supply system or equipment, and the outlet pipe communicates with the liquid supply port of the liquid supply system or equipment.
  • the device can be installed in the cold water inlet pipe of the gas water heater. At this time, the inlet pipe of the device is connected with the cold water inlet pipe of the gas water heater, and the outlet pipe and the gas water heater are connected.
  • the cold water inlet is connected, and the hot water outlet of the water heater is directly connected to the pipe leading to the customer end.
  • the sensing element sensing the liquid condition detects that the liquid begins to flow, and the recycling device enters the working state; if the sensing element sensing the liquid performance at this time is measured in the pipeline of the liquid supply system or the outlet end of the device
  • the recycling device maintains normal working condition, that is, the inlet pipe communicates with the outlet pipe, the extraction pipe is closed, the liquid pump does not start, the liquid supply system or the device normally supplies the liquid satisfying the requirements; when sensing the liquid performance sensing The performance of the liquid measured by the component does not meet the requirements.
  • the signal of the sensing component can be controlled by the electric valve of the recycling device to make the outlet pipe communicate with the extraction pipe, the inlet pipe is closed, the water pump is started, and the gas water heater is connected to the pipeline of the user end.
  • the remaining water is taken out together with the retained water inside the gas water heater for reuse;
  • the outlet valve is connected to the inlet pipe by controlling the electric valve of the recycling device , the pump is closed, the pump is stopped, the gas water heater can be Often used, through which the cold water feed pipe using the recovery device, the tube into the gas-fired water heaters, heating, gas water heater outlet that is discharged hot water, and flows out from the UE through the pipe.
  • the sensing element sensing the liquid condition causes the recycling device to be out of operation due to the measured flow stop of the liquid, each electric valve and liquid
  • the pump returns to normal.
  • the outlet of the recycling unit is always open during operation, so that the two-way valve in the direction of the outlet can be omitted (for the recycling device using the three-way and two-way valves).
  • sensing element for sensing the liquid state detects that the liquid starts to flow, and the recycling device enters the working state
  • the recycling device is "standby” only when the sensing element that senses the liquid condition starts to flow.
  • Stensing element such as liquid performance
  • the signal measured by the sensing element such as liquid performance can be turned on or off by the control circuit to start or stop the liquid pump; the valve and liquid are not opened at the user end and the supply system or equipment When flowing, the recycling device will not work; the liquid starts to flow is a prerequisite for the recycling device to enter the working state. This prevents false starts of the recycling unit (for example, incorrect start of the liquid pump when the supply system or equipment is not in use).
  • a specific implementation method is: connecting a sensor-controlled switch, a liquid flow switch or a water ripple switch, etc., which senses a liquid flow condition, in a power supply circuit of the recycling device, and using the flow signal of the liquid to make the recycling device Get electricity, and then enter the working state.
  • the recycling device only recycles the liquid when both the liquid flow and the liquid do not meet the requirements. Otherwise, the electric valve and the liquid pump are in a normal state, and the liquid is not recycled.
  • a specific implementation method that can also be employed is to connect the circuit element controlled by the sensing element sensing the liquid property and/or the circuit switch controlled by the sensing liquid flow sensing element in the power supply circuit of the recycling device.
  • control circuit can also be designed to trigger the recycling device to start working as long as the liquid starts to flow and the liquid performance does not meet the requirements. After the fluid is recovered, the required fluid is normally supplied without requiring the liquid flow sensing component to be tested. The liquid in the pipe is always flowing. However, in the case of abnormal operation (for example, when the valve of the user terminal is opened, and the valve of the user end is immediately closed when the recycling device starts working), the operation of the recycling device may be in error.
  • the recovered liquid can be used for the washing of the item or for other uses.
  • the recovered liquid can also be directly pressed into a storage container for disposal and reused.
  • a further technical solution is to communicate the liquid delivery device through a delivery tube to a liquid storage container, such as a reservoir.
  • the reservoir can be filled with a liquid utilization outlet and a valve for storing the recovered liquid.
  • the use of the recovered liquid is not necessarily performed simultaneously with the use of the recycling device.
  • a further technical solution is: passing the outlet pipe through a branch pipe and a pipe of the raw liquid inlet end of the liquid supply system or equipment a branch pipe electric valve is disposed on the branch pipe, and an outlet electric valve is disposed at an end of the outlet pipe near the liquid storage container, and the electric valve is electrically connected to the control circuit, when the liquid remaining in the liquid supply system or the device is extracted Feed it into the piping of the liquid supply of the liquid supply system or equipment.
  • the liquid helium that is withdrawn from the recycling device to the supply system or inside the device can be directly returned to the liquid supply system or the inside of the device for recycling.
  • this latter technical solution requires fewer components, and the working pressure of the pump is not high, and there is no liquid in the inlet pipe when the recovered liquid is returned to the original liquid inlet pipe. The quality, pressure, etc. cause interference problems.
  • Another technical solution for utilizing the recovered liquid is to feed the extracted recovered liquid, including the liquid recovered into the liquid storage container, into the raw liquid inlet pipe of the liquid supply system or equipment, and pass it through the liquid supply system or equipment. After processing, it meets the requirements.
  • the liquid in the reservoir can be communicated to the conduit of the liquid inlet end of the liquid supply system or device through a circulation pipe and a liquid pump, wherein the reservoir is also provided with a sense of the presence or absence of liquid or liquid therein.
  • the sensing element is electrically connected to the control circuit, and the switch of the liquid pump and the associated electric valve is controlled by the control circuit.
  • the sensing element senses a liquid helium in the reservoir or the circulation pipe, that is, the liquid pump is activated by the control circuit
  • the recovered liquid in the reservoir is pressed into the inlet port of the liquid supply system or equipment.
  • the sensing element senses that there is no liquid helium in the reservoir or circulation tube
  • the liquid pump is turned off, and the process of pressing the recovered liquid into the liquid inlet system of the liquid supply system or equipment is stopped.
  • the circulation tube is provided with a valve and is simultaneously opened when the liquid pump is activated.
  • a better technical solution for feeding the extracted recovered liquid into the raw liquid inlet pipe of the liquid supply system or equipment is to connect the liquid storage tank to the extraction pipe of the recycling device through a circulation pipe, a liquid pump connected to the extraction pipe communicates with the inlet pipe of the untreated raw liquid of the liquid supply system or equipment through the outlet pipe and the branch pipe, and the end of the circulation pipe, the branch pipe and the outlet pipe near the liquid storage tank
  • Each of the electric valves is electrically connected to a control circuit, and the liquid storage container is further provided with an element for measuring the state of the liquid. This makes it possible to use a liquid pump.
  • the recycling device can be installed in the pipeline of the liquid supply system or the liquid outlet of the equipment.
  • the specific control methods are as follows: First, the recycling device is not required in the liquid supply system or the internal pipeline of the equipment. The liquid is directly pressed into the liquid supply system or equipment for recycling, that is, the liquid in the recycling device to the customer pipe has been evacuated and entered into the liquid storage tank, and the control circuit connects the inlet pipe of the recycling device with the extraction pipe.
  • the liquid pump continues to work to withdraw the recycling device to the liquid supply system or the liquid inside the equipment that does not meet the requirements, that is, to open the electric valve on the branch pipe, and close the electric valve of the outlet pipe near the end of the liquid storage tank, Recycling the liquid from the recycling system to the liquid supply system or the internal piping of the equipment is directly injected into the liquid supply system or equipment for recycling; then the liquid in the pipeline of the recycling device is measured by the sensing element.
  • the inlet pipe of the recycling device is connected with the outlet pipe, and the pipe is taken out
  • the electric valve in the circulation pipe is opened, and the electric valve on the branch pipe is kept open, and the electric valve of the outlet pipe near the end of the liquid storage tank is kept closed.
  • the liquid pump remains in operation, and the recovered liquid in the liquid storage tank is pressed into the liquid supply system or equipment until the liquid condition sensing element in the measuring liquid tank senses that there is no liquid in the liquid storage tank, and then passes
  • the control circuit closes the valve on the circulation pipe and the ceramic door on the branch pipe, opens the valve of the outlet pipe near one end of the liquid storage tank, closes the liquid pump, and stops the process of pressurizing the liquid into the liquid supply system or equipment, and the device returns to the normal state.
  • the method is to start the liquid recovery after the liquid in the liquid pipe and the liquid in the internal pipe of the user or the unsuitable liquid in the internal pipe of the device has been pumped into the liquid storage tank. A procedure for pressing into the liquid supply system or equipment inlet pipe.
  • the liquid supply system or the unacceptable liquid inside the equipment and the recovered liquid in the liquid tank are pressed into the liquid supply system or the two inlet tubes of the equipment.
  • the steps are carried out successively.
  • the liquid storage tank needs to contain the liquid recovered from the customer-end pipeline and the liquid recovered from the liquid supply system or the internal pipeline of the equipment; in the first method, the liquid supply system or the liquid inside the equipment does not meet the requirements.
  • the two steps of withdrawing and repressing it into the liquid supply system or apparatus are carried out simultaneously, and the reservoir only needs to contain the liquid recovered from the customer end line, and the volume of the reservoir can be small.
  • the above automatic recycling device can be separately manufactured and conveniently installed in the liquid supply system or the liquid outlet pipe of the equipment, for example, the connection point of the liquid supply port of the supply system or equipment and the pipe leading to the user end is disassembled, and the recycling will be utilized.
  • the device is directly installed in the middle, that is, the inlet and outlet pipes of the recycling device are respectively connected to the liquid outlet of the supply system or equipment and the pipeline leading to the user end, and the liquid inlet of the liquid supply system or equipment is disassembled at the same time.
  • connection pipe to the inlet pipe, the branch pipe of the recycling device is connected to the liquid inlet of the liquid supply system or equipment and the inlet pipe with the inlet valve through a tee, and preferably in the liquid supply system or equipment Install a check valve in the direction of the inlet valve.
  • the automatic liquid recovery device of the combined liquid pump When the above-mentioned automatic liquid recovery device of the combined liquid pump is used for a liquid supply system or equipment that does not have a liquid storage device but processes the liquid in the pipeline immediately, it can also be installed in the liquid supply system or equipment by the foregoing. Install in the way of the liquid port.
  • the control method is specifically: after the sensing element sensing the liquid condition detects that the liquid in the liquid supply system or the device and the remaining liquid in the user terminal pipe have been evacuated, the inlet and outlet of the recycling device are controlled by the control circuit.
  • the liquid supply system or the device starts to supply the liquid in accordance with the requirements; at the same time, the control circuit opens the valve and the circulation pipe on the branch pipe according to the signal of the above sensing element or/and the signal of the sensing element in the reservoir.
  • the valve in the outlet close the valve of the outlet tube near one end of the reservoir, the liquid pump is activated, and the recovered liquid in the reservoir is pressed into the liquid supply system or device until the sensing element is disposed in the reservoir
  • the recycling device returns to the normal state.
  • the above automatic recycling device can also be conveniently installed, for example, disassembling the connection portion between the inlet port and the inlet pipe of the supply system or equipment, and directly installing the recycling device in the middle, gp : discharging the outlet of the recycling device
  • the liquid supply system or the inlet of the equipment is connected, and the inlet pipe of the recycling device is connected to the inlet pipe of the supply system or equipment and the branch pipe of the recycling device through a tee pipe.
  • a more preferred solution is to use a two-way liquid pump, that is, a pump capable of both forward and reverse transport of liquid, and the outlet pipe connected to the liquid pump is directly connected to the lower portion of the reservoir to cancel the pressure of the recovered liquid in the reservoir.
  • the circulation pipe, branch pipe and corresponding valve required in the liquid supply system or equipment. Its control circuit controls both the flow of liquid through the three-way structure and the forward and reverse start and stop of the two-way liquid pump.
  • the recycling device is installed in a conduit of a liquid supply system or a liquid inlet of the apparatus that does not have a liquid storage device but processes the liquid in the pipeline immediately.
  • the liquid supply system or equipment normally supplies the liquid ⁇ which meets the requirements through the recycling device, and if there is liquid recovered in the liquid storage tank, the liquid pump is reversely activated, and the liquid of the liquid storage tank can be pressed into the liquid Re-use in liquid supply systems or equipment.
  • the specific control method is: if the sensing element that senses the performance of the liquid detects that the liquid in the pipeline does not meet the requirements and needs to be recycled, the signal of the sensing component communicates with the extraction tube of the recycling device through the control circuit.
  • the inlet pipe is closed, the liquid pump is started in the forward direction, and the liquid in the liquid supply system or the device together with the retained liquid in the user pipe is taken out and sent to the liquid storage tank; after the sensing element sensing the liquid condition is measured, the remaining liquid is evacuated.
  • the liquid pump is reversely activated, and the recovered liquid in the liquid storage tank is pressed into the liquid supply system or the liquid inlet pipe of the equipment until the sensing element provided in the liquid storage tank senses the liquid storage tank.
  • the extraction tube and the liquid pump are closed by the control circuit, and the process of pressing the recovered liquid into the liquid supply system or equipment is stopped, and the recycling device returns to the normal state. Due to the reduced parts, the recycling device of this technical solution can be more easily installed inside the liquid supply system or equipment.
  • each of the above technical solutions has a liquid storage tank as a buffer container for recovering liquid, the recovered liquid can be returned to the supply system or the equipment when the supply system or equipment is working normally, thereby affecting the inlet system of the supply system or equipment. Smaller, and a check valve can be added to the inlet line to completely eliminate the effects on the supply system or equipment inlet line.
  • the tee pipe at the junction of the circulation pipe and the extraction pipe, the tee pipe at the junction of the outlet pipe and the branch pipe, and the branch pipe may be connected to the liquid supply pipe of the liquid supply system or equipment.
  • One or more of the tees are replaced by electric three-way valves or electric reversing pots, and the electric two-way valve associated with the one or several tees is eliminated (for example, if the outlet and branch connections are eliminated)
  • the tee pipe at the same place, that is, canceling the electric two-way pottery on the branch pipe and the end of the outlet pipe close to the liquid storage tank), and the control circuit controls the electric three-way valve or the electric commutation according to the signal of the sensing element
  • the opening direction of the valve achieves the same control purpose.
  • the tank, the circulation pipe, the branch pipe and the corresponding valve are omitted, and the outlet pipe is directly connected to the liquid.
  • the extracted recovery liquid can also be sent to the raw liquid inlet pipe of the liquid supply system or equipment for recycling purposes.
  • the recycling device of this technical solution can also be installed in the pipeline of the liquid supply system or the inlet or outlet of the equipment.
  • the above-mentioned automatic pumping device for automatically recycling the recovered liquid into the liquid supply pipe of the liquid supply system or equipment by the liquid pump should have a larger output pump pressure than the liquid supply system or the pressure in the liquid inlet pipe of the device.
  • the control program can be modified, for example, the recovered liquid is first sent to the liquid supply inlet of the liquid supply system or equipment, and then the electric valve in the direction of the raw liquid inlet pipe is opened.
  • the communication between the liquid supply system or the inlet conduit of the equipment to the inlet valve of the supply system or equipment has a controller-controlled electric valve that feeds the recovered liquid into the liquid supply system or equipment The electric valve is closed so that the recovered liquid is isolated from the raw liquid inlet pipe when it is fed into the raw liquid inlet.
  • a more simple technical solution is: canceling the three-way structure with the liquid flow direction selection control valve, directly connecting the two ends of the liquid pump to the inlet pipe and the outlet pipe, that is, the liquid pump is directly connected in series Between the inlet and outlet, and the liquid flow of the liquid pump is opposite to the original liquid flow in the pipeline.
  • This simple way of recycling can be installed in series with the liquid supply system or the equipment outlet, but it is not sufficient to recover the liquid supply system or the liquid inside the equipment.
  • such recycling means is preferably connected in series with the piping installed in its inlet.
  • the liquid pump When the sensing element that opens the relevant pottery door and senses the liquid condition detects that the liquid begins to flow, if the sensing element sensing the liquid property determines that the liquid in the pipe of the liquid supply system or the outlet end of the device meets the requirements, the liquid pump does not start.
  • the liquid supply system or equipment normally supplies the liquid in accordance with the requirements; if the sensing element sensing the liquid property determines that the liquid in the pipeline does not meet the requirements and needs to be recycled, the signal of the sensing component can be activated by the control circuit through the control circuit.
  • the liquid from the recycling device to the liquid supply system or the internal pipeline of the equipment and then to the customer pipeline is drawn out and pressed into the liquid inlet pipe, and after the liquid sensing device detects the liquid is taken out, the liquid is controlled.
  • the working pressure of the liquid pump of the technical solution should be greater than the liquid pressure in the inlet pipe, and the liquid in the pipe can pass normally after the liquid pump is not started, which is a problem that has been solved by the prior art, such as a commercial one.
  • All of the aforementioned recycling devices can be conveniently used for the recovery of unsuitable liquids in the piping of a liquid supply system or equipment, without the need to modify the piping of the entire supply system or equipment. For example, install it at the interface of the gas water heater, electric water heater, solar water heater or boiler inlet and outlet pipes without changing the other pipes of the entire hot water system.
  • the device can automatically and quickly recover the remaining cold water in the pipeline, and quickly discharge the hot water suitable for bathing, which not only reduces the waste of water resources, but also enables The bathing process is more comfortable and fast.
  • the following methods can be used: Open all the valves of the user before using, then turn on the heat.
  • the valve of the water supply system or equipment At this time, because the retained liquid in the pipeline does not meet the requirements and needs to be recycled, the recycling device can store the liquid and hot water supply system or the internal pipeline of the equipment in the plurality of customer pipelines. All the remaining liquids that do not meet the requirements are taken out for reuse; when the liquid in the pipeline has met the requirements, the hot water supply system or equipment can supply the hot water that meets the requirements normally, and the heat can be directly discharged from the multiple customer pipelines. water.
  • the button can give a single electrical signal through the circuit for a certain period of time (for example, within 5 to 10 minutes) (For example, the delay voltage signal given by the resistor-capacitor circuit), when a user-side valve is newly opened, the sensing element detects the flow of liquid (when a valve is opened) or accelerates the flow (in the existing valve) , and then open another valve ⁇ ) and the pressure is reduced or the flow rate is increased, and the signal is combined with the above electrical signal, and the signal output by the temperature sensing element can be instantly converted into a temperature that does not meet the requirements by a program set by the control circuit.
  • a certain period of time for example, within 5 to 10 minutes
  • the sensing element detects the flow of liquid (when a valve is opened) or accelerates the flow (in the existing valve) , and then open another valve ⁇ ) and the pressure is reduced or the flow rate is increased, and the signal is combined with the above electrical signal, and the signal output by the temperature sensing element can be instantly converted into a temperature
  • the signal (for example, the signal output by the temperature sensing element is inverted by the voltage signal described above), thereby restarting the recycling device once.
  • the button is pressed first, and the valve of the other user end is newly opened, and the recovery device can be restarted again, and the water in the user's pipeline that is opened later is performed. Recycling, and after the recovery is completed, the temperature-required hot water is discharged to solve the problem that the water heater cannot recover the cold water in the pipeline when the other user's valve is opened in a short time after the prior user is deactivated; if prior The user is using the water heater.
  • the flow rate of the liquid is increased, and the pulse signal measured by the sensing element due to the accelerated flow of the liquid and the pressure is decreased or the flow rate is increased.
  • the electrical signals are combined to instantly convert the signal outputted by the temperature sensing element into a signal whose temperature does not meet the requirements.
  • the recovery device is restarted once and the recovered user is forcibly recovered while the prior user is still using it. First and the water in the user pipeline, and after the recovery is completed, the temperature-dependent heat is discharged. So that solved the problem after the end of the valve to open another user in the preceding users are still using the water heater can not be recycled to the end user in the cold water pipe, but the use of prior user has a short-term impact.
  • a continuous signal switch can be mounted on the circuit of the controller separately or simultaneously, the switch can always give an electrical signal (such as a voltage signal) through the circuit, the signal and each
  • the sensing element detects the flow of liquid (when a valve is opened) or speeds up the flow (when the door is open, and then another valve is opened), the pressure becomes smaller or the flow rate increases.
  • the pulse signal is combined, and the signal output by the temperature sensing element can be instantly converted into a signal whose water temperature does not meet the requirements by a program set by the control circuit.
  • a further preferred solution is to mount the temperature sensing element in the vicinity of each of the customer-side valves and electrically connect it to the control circuit so that when the valve of any of the user terminals is opened, if the temperature of the water outlet does not match On request, the recovery unit can be started to recover the water in the opened user's pipeline and to discharge the hot water that meets the temperature requirements after the recovery is completed.
  • thermosensors in the above-mentioned recycling device for the hot water supply system or equipment are respectively replaced with corresponding oxygen saturation sensors, (: 0 2 saturation sensor, pH sensor or low temperature sensor, etc., respectively, A liquid supply system or equipment that is used to produce or live a liquid after it has been oxygenated, C0 2 added, pH adjusted, or cooled.
  • the control circuit of the recycling device may be combined with other corresponding components to form a controller, and the controller may also have components and corresponding display components that set a limit or range of liquid properties.
  • the use of sensing elements and control of electric valves and liquid pumps through control circuits is a mature technology available, and those skilled in the electromechanical field can fully determine the specific sensing elements, electric valves, controllers and their circuits according to actual needs (eg The use of a programmable controller does not require creative labor, such as the use of sensors, electric valves and controllers of CN100363692C, CN1959287A, CN1693810A or CN2699185Y.
  • FIG. 1 is a schematic view showing a recycling apparatus using a tee pipe equipped with an electronically controlled two-way valve.
  • FIG. 2 is a schematic view of a recycling device using an electronically controlled three-way valve or a reversing valve.
  • Figure 3 is a schematic illustration of a fluid supply system or apparatus, particularly a water heater, having a recycling device installed in a line at the fluid outlet end of a fluid supply system or apparatus.
  • Figure 4 is a schematic illustration of a fluid supply system or apparatus, particularly a water heater, having a recycling device installed in a line at the fluid inlet end of a fluid supply system or apparatus.
  • Figure 5 is a schematic illustration of a fluid supply system or apparatus, particularly a water heater, in which a recycle unit using a two-way fluid pump is installed in a line at the fluid inlet end of a fluid supply system or apparatus.
  • Figure 6 is a schematic illustration of a fluid supply system or apparatus, particularly a water heater, having a simple recycling device installed in a line at the fluid outlet end of a fluid supply system or apparatus.
  • Figure 7 is a schematic illustration of a fluid supply system or apparatus, particularly a water heater, having another simpler recyclate installed in a line at the fluid inlet end of a fluid supply system or apparatus.
  • the two parallel lines in Figures 1 and 2 represent pipes, and the arrows in the circles indicate the fluid flow direction during operation of the fluid transport device.
  • the thick black lines in Figures 3, 4, 5, 6, and 7 indicate pipes, the thick black arrows indicate fluid flow, and the arrows in the circles indicate fluid flow during operation of the fluid transfer device.
  • the dashed arrows in Figures 1 and 7 indicate the electrical connection of the sensor to the controller, and the long dash arrows indicate the electrical connection of the controller to the fluid delivery device and the electrically controlled valve;
  • the thin dashed lines in Figures 3, 4, and 5 The arrows indicate the flow direction at the time of fluid recovery;
  • the thick dashed line in Fig. 3 indicates an installable valve;
  • FIGS. 3, 4, 5, 6, and 7. A similar component in a system or device.
  • Example 1 A recycling device using a tee pipe equipped with an electric two-way valve to control the flow of a liquid at a temperature (or low temperature) was used.
  • the recycling device comprises a three-way structure 1 with a tee pipe and an electric two-way valve, an inlet pipe 2 connected by the three-way structure 1 and the high-temperature (or low-temperature) liquid supply system or equipment.
  • the pipe in the liquid direction communicates, the outlet pipe 3 communicates with the pipe of the liquid supply system or the discharge direction of the equipment, and the extraction pipe 4 connects the liquid pump 5 and the outlet pipe 9 (the outlet pipe 9 can also be eliminated), the three-way structure 1
  • an inlet electric two-way valve 6, an outlet electric two-way wide 7, and an extraction tube electric two-way valve 8, and a temperature sensor and a pressure sensor (not shown) are installed at the position 10, and the controller 30
  • a wired electrical connection is made between the sensor and the liquid pump 5, and the signal of the sensor controls the operation of the electric two-way valves 6, 7, 8 and the liquid pump 5 through the circuit of the controller 30.
  • the recycling device is in operation when the pressure in the pipe is medium or negative.
  • a common method of installation is to install the device in a liquid outlet line adjacent to the liquid supply system or equipment, where the inlet tube 2 of the device and the liquid of the liquid supply system or equipment have been treated. Port connection, the outlet 3 of the device and the liquid supply system or device The client side is connected.
  • the pressure is zero (the valve of the liquid supply system or equipment is not opened) or the high pressure (the valve of the liquid supply system or equipment is opened and the valve of the user is not opened), the recycling device does not enter the working state.
  • the liquid in the pipe begins to flow, the pressure becomes medium pressure, and the recycling device enters the working state; at this time, if the temperature sensor measures the liquid in the pipe to match
  • the electric valves 6 and 7 are kept open by the control circuit, the electric valve 8 is kept closed, and the liquid that meets the requirements is normally passed through the inlet pipe 2 of the recycling device, the electric valve 6, the tee pipe, and the electric valve 7
  • the outlet pipe 3 is sent to the customer end; if the temperature sensor detects that the liquid in the pipeline does not meet the set requirement, the electric valve 6 is closed by the control circuit, the electric valve 7 and the electric valve 8 are opened, and the liquid pump 5 is activated at the same time.
  • the liquid that does not meet the requirements in the pipeline of the recycling device to the user end passes through the outlet pipe 3, the electric valve 7, the tee, The movable valve 8, the extraction pipe 4, the liquid pump 5, and the outlet pipe 9 are withdrawn, and the pressure is a negative pressure; when the liquid that does not meet the requirements in the pipeline of the recycling device to the customer end is exhausted, the pressure becomes a negative pressure close to zero.
  • the signal measured by the pressure sensor closes the electric valve 7 through the control circuit, opens the electric valve 6 and the electric valve 8, and the liquid pump 5 continues to work, passing the recycling device to the liquid supply system or the liquid in the internal pipe of the device that does not meet the requirements.
  • Tube 2, electric valve 6, tee, electric valve 8, extraction tube 4, liquid pump 5 are withdrawn (it can also rely on the pressure in the liquid supply system or the internal piping of the equipment to keep the liquid flowing out, not to start the liquid pump
  • the fresh liquid enters the liquid supply system or equipment and is processed by the latter; when the temperature sensor detects that the liquid supply system or equipment starts to flow out the required liquid, the recycling device returns to the normal state, and the liquid that meets the requirements can be recycled.
  • the device is delivered to the user terminal. When the valve of the liquid supply system or equipment or the valve of the user end is closed, the liquid stops flowing, the pressure is zero or high pressure, and the recycling device is taken out of operation. It is also possible to install a conductivity sensor at position 10 for sensing the state in which the liquid has been pumped out and withdrawing the recycling device from the recycling device to the liquid supply system or the liquid in the internal piping of the device through the control circuit.
  • the withdrawn liquid can be discarded or used for the washing of the article or for other purposes, or directly into a storage container of a liquid supply system or device (e.g., a solar water heater) having a liquid storage container for reuse.
  • a liquid supply system or device e.g., a solar water heater
  • the outlet tube is connected to the liquid storage container, the tube is connected to the liquid inlet end of the liquid supply system or the device through a tube, and the branch tube is provided with a branch tube electric ceramic, and the outlet tube is adjacent to the liquid storage container.
  • An outlet electric valve is provided at one end, and the electric valve is electrically connected to the control circuit.
  • Embodiment 2 A high-temperature (or low-temperature) liquid recycling device that uses an electric three-way valve or an electric directional control valve to control the flow of liquid.
  • the working principle is the same as that of the first embodiment, except that the three-way structure 1 is an electric three-way valve or an electric reversing valve, which replaces the three of the electric two-way clearing 6, 7, 8 of the first embodiment.
  • the electric three-way valve or the electric reversing valve Through the rotation of the electric three-way valve or the electric reversing valve, the two tubes of the inlet pipe 2, the outlet pipe 3, and the extraction pipe 4 are turned on, and the other pipe is closed.
  • a temperature sensor and a pressure sensor that senses whether the liquid is flowing are installed at position 11, and a pressure sensor that senses whether the liquid is flowing and a conductivity sensor that senses whether the liquid has been evacuated is installed at position 12, when any pressure sensor is measured
  • the liquid can be used to make the recycling device in operation, and the electrical signal measured by the temperature sensor and/or the conductivity sensor that senses whether the liquid has been evacuated can control the rotation of the electric wide and the start and stop of the liquid pump. If the circuit of the controller is designed to trigger the recovery device to recover the control method by using the signal that the temperature of the liquid in the pipe measured by the temperature sensor does not meet the requirement and the signal that the pressure sensor starts to flow, the pressure sensor Simply install one at location 11 or 12.
  • Example 3 A recycling device for automatically recovering low C0 2 content water.
  • the recycling device is usually installed at the water outlet of the high ⁇ 2 content water supply system, and the inlet pipe 2 of the recycling device is connected to the water outlet of the high ⁇ 2 content water of the high CO 2 content water supply system.
  • the outlet pipe 3 is connected to the pipeline of the customer end, and the extraction pipe 4 is connected
  • the liquid pump 5 and the outlet pipe 9, the three-way structure 1 are respectively provided with a normally open inlet electromagnetic pottery 6, an outlet electromagnetic wide 7 and a normally closed extracting tube solenoid valve 8, which are controlled by opening and closing a solenoid valve. The flow of liquid.
  • a C0 2 saturation sensor or pH sensor
  • a water ripple switch and a conductivity sensor are installed at the position 10 (in the figure) Not shown)
  • the sensor, the water ripple switch and the liquid pump 5 are connected to the controller 30 by wire, and the controller 30 controls the opening and closing of the solenoid valve and the liquid pump according to preset control conditions and signals of the sensing element.
  • the power supply circuit Watermark rocker switch located on the recycling apparatus, when the rocker switch waterlines measured liquid begins to flow in the pipeline so that the recycling apparatus into operation, saturation sensor 02 (or PH sensor 30 by the controller ) and the conductivity sensor control the action of the electromagnetic wide and liquid pump according to whether the water C0 2 saturation (or pH value) meets the requirements and whether the water has been evacuated.
  • the recycling device 2 to ⁇ Gao supply system includes a low content of water inside the water content of C0 2 supply system piping remaining in Gao (3 ⁇ 4 water content through the intake pipe 2, the solenoid valve 6 into the pipe, Through the tube, extraction tube 8 a solenoid valve, extraction pipe 4, the liquid pump 5, the discharge tube 9 withdrawn for reuse (or on the pressure on the high C0 2 content of the water supply system to keep the water inside the pipe of the low C0 2 content movement The water flows out, does not start the liquid pump), at this time, the high C0 2 content water supply system continuously adds C0 2 to the water entering from the equipment inlet to achieve the required C0 2 saturation; when the 0 2 saturation sensor measures when got from a high C0 2 content of the water supply system of C0 2 content of the water has to meet the requirements by the controller 7 and the solenoid valve 6 open state recovery, extraction pipe 8 the solenoid valve to restore the closed state, the liquid pump 5 is stopped, in line with The required height (3 ⁇ 4 of water can be sent to the customer through
  • the extracted low ⁇ 2 content water liquid can be used for washing or other use of the article, or directly pressed into a liquid tank of a high C 2 2 water supply system for re-use after adding C0 2 .
  • the recycling device can also be installed in the water inlet line of the supply system, ie the inlet pipe 2 of the recycling device and the high C0 2 content water supply
  • the inlet pipe connection of the system, the outlet pipe 3 is connected to the water inlet of the high C0 2 content water supply system, and the water outlet of the high C0 2 content water is connected to the pipeline of the customer end, except that the ⁇ 2 saturation sensor is not installed at the position 10 Instead, it is installed at the outlet of the sorghum 2 water supply system, and its outlet solenoid valve 7 can be omitted.
  • the specific working procedure is as follows: When the high C0 2 content water supply system is turned on, the power switch of the recycling device and the valve of the user end are opened, the water in the pipe starts to flow, and the water ripple switch makes the recycling device enter the working state. If the C0 2 saturation sensor detects that the C0 2 content of the water in the pipe of the supply port of the supply system does not meet the requirements for use, the signal of the sensor is turned on by the controller to open the solenoid valve 8 of the extraction pipe, and the liquid pump 5 is activated.
  • the valve 6 is closed, and the low C3 ⁇ 4 content water in the pipeline including the recycling device to the customer end including the supply system is taken out through the outlet pipe 3, the three-way pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the liquid pump 5, and the outlet pipe 9.
  • the solenoid valve 6 is returned to the open state by the controller, and the extraction solenoid valve 8 is returned to the closed state, and the liquid pump 5 stops working.
  • the raw water can be fed from the inlet pipe of the supply system through the inlet pipe of the recycling device 2, the inlet solenoid valve 6, the tee pipe, the outlet pipe 3 and added by the high C0 2 content water supply system (0 2 and then sent to the user terminal,
  • the released water is high (3 ⁇ 4 water content. If the water ripple switch detects that the liquid stops flowing during operation (such as closing the user valve or the inlet or outlet valve of the high C0 2 water supply system), The device can be brought out of operation and the device can be brought back into operation when the measured liquid begins to flow.
  • Example 4 A recycling device for low-temperature powder in a high-temperature powder supply system was automatically recovered.
  • the recycling device is installed at the high temperature powder outlet of the high temperature powder supply system, and the inlet pipe 2 of the recycling device
  • the high-temperature powder outlet connection of the high-temperature powder supply system, the outlet pipe 3 is connected with the pipeline of the customer end, the extraction pipe 4 is connected with a fluid pump (such as a ventilator) 5 and the outlet pipe 9, and the three-way structure 1 is respectively provided with an inlet solenoid valve 6
  • the outlet electromagnetic tube 7, the extraction tube solenoid valve 8 controls the flow direction of the powder by opening and closing the electromagnetic pottery and the pump.
  • a temperature sensor and a flow sensor are installed at the position 10, and the sensor is wirelessly connected to the controller (in the figure) Connected, the controller controls the opening and closing of the solenoid valve and the fluid pump according to the signal of the sensor, wherein the flow signal measured by the flow sensor controls the opening of the power circuit of the recycling device.
  • the specific working procedures are as follows: Turn on the high-temperature powder supply system and the power switch of the recycling device, open the valve at the user end, the powder in the pipe starts to flow with the air in the pipe, and the signal measured by the flow sensor starts the recycling device to make it enter Working status. If the temperature sensor measures that the temperature of the powder in the pipeline is too low, the signal of the temperature sensor passes through the controller to open the outlet solenoid valve 7 and the extraction tube electromagnetic chamber 8, the fluid pump 5 is activated, and the inlet solenoid valve 6 is closed.
  • the low temperature powder in the pipeline of the recycling device to the customer end is taken out through the outlet pipe 3, the outlet pipe solenoid valve 7, the tee pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the fluid pump 5, and the outlet pipe 9 for reuse;
  • the flow sensor measures that no powder flows in the pipeline, only the air flows, the inlet solenoid valve 6 and the extraction pipe solenoid valve 8 are opened by the controller, the fluid pump 5 continues to work, and the outlet solenoid valve 7 is closed, which will be recycled.
  • the device to the high-temperature powder supply system includes the low-temperature powder remaining in the internal pipe through the inlet pipe 2, the inlet pipe solenoid valve 6, the tee pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the fluid pump 5, and the outlet pipe 9 to be extracted
  • the high-temperature powder supply system continuously heats the powder entering the system inlet to reach the required temperature;
  • the solenoid valves 6 and 7 are returned to the open state by the controller, the solenoid valve 8 is returned to the closed state, the fluid pump 5 is stopped, and the high-temperature powder meets the requirements.
  • the inlet pipe 2, the inlet solenoid valve 6, the tee pipe, the outlet pipe 3 and the outlet pipe solenoid valve 7 of the recycling device can be sent to the user terminal, and the high temperature powder is sent out.
  • the extracted low temperature powder can be directly used in a storage container for reuse.
  • the recycling device can also be installed in the powder inlet line of the supply system for a high-temperature powder supply system having no powder container inside.
  • the temperature sensor is installed in the powder outlet line of the supply system and the solenoid valve 7 can be omitted. If the temperature of the powder in the pipe is too low, the temperature sensor will not recover. The low-temperature powder remaining in the pipeline from the inside of the high-temperature powder supply system to the user end is extracted all at once.
  • the solenoid valve 6 is returned to the open state by the controller, and the solenoid valve 8 is closed.
  • the shutdown state is resumed, the fluid pump 5 stops working, the powder enters and is warmed from the inlet of the high-temperature powder supply system, and the high-temperature powder that meets the requirements can be sent to the user end.
  • Example 5 Automatic recovery of helium gas recovery equipment that does not meet the required temperature.
  • the recycling device is installed at a heated helium gas outlet near the warm gas supply device, and the inlet pipe 2 of the recycling device is connected with the warmed helium gas outlet of the warm gas supply device, and the outlet pipe 3 and the user
  • the pipe connection of the end, the extraction pipe 4 is connected to the gas pump 5 and the outlet pipe 9, and the inlet pipe 2, the outlet pipe 3 and the extraction pipe 4 are connected to the electric three-way wide 1, wherein the inlet pipe 2 and the outlet pipe 3 are normally connected.
  • a temperature sensor is installed in the inlet pipe 2, that is, at the position 11, and a differential pressure sensor (not shown) is installed in the outlet pipe 3 at the position 12, and the sensor is wired and connected to the controller (not shown) ) Connected.
  • the recycling device is designed to be directly activated by the user (for example, by directly turning on the power of the recycling device to enter the working state), and controlling the opening of the electromagnetic ceramics and the gas pump according to the preset control conditions and the signal of the sensor. , turn off.
  • the specific working procedure is as follows: first, the valve of the user end is not opened, and the recycling device is directly started after the air supply valve of the heating helium supply device is turned on; if the temperature of the helium gas in the pipeline is too low, the temperature sensor does not meet the requirement and the pressure is When the differential sensor measures a certain pressure in the pipeline, the signal of the temperature sensor is turned on by the controller to open the three-way valve 1 to the outlet pipe 3 and the extraction pipe 4, the gas pump 5 is started, and the inlet pipe 2 is closed, and the recycling device is used.
  • the low temperature helium gas in the pipeline to the customer end is taken out through the outlet pipe 3, the three-way valve 1, the extraction pipe 4, the gas pump 5, and the outlet pipe 9 for reuse; when the differential pressure sensor at the position 12 measures the recycling device to When there is almost no helium in the pipeline at the user end (the gas pressure in the manifold is close to zero or even a negative pressure), the controller opens the three-way valve 1 to the direction of the inlet pipe 2 and the extraction pipe 4, and the gas pump 5 continues.
  • the outlet pipe 3 is closed, and the low-temperature helium gas inside the high-temperature helium gas supply device including the recycling device to the high-temperature helium gas supply device is passed through the inlet pipe 2, the three-way port 1, the extraction pipe 4, the gas pump 5, and the outlet.
  • the tube 9 is withdrawn for reuse; at this time, the heated helium supply device continuously heats the helium gas entering from the system inlet to reach the required temperature; when the temperature sensor measures the high temperature helium supply device
  • the controller returns the direction of the three-way valve 1 to the inlet pipe 2 and the outlet pipe 3 to the open state, the direction of the extraction pipe 4 is restored to the closed state, and the gas pump 5 stops working, which is in accordance with
  • the required high temperature helium gas can be opened to the user terminal through the inlet pipe 2, the three-way valve 1, and the outlet pipe 3 of the recycling device.
  • the extracted low-temperature helium gas can be directly pressed into the heating helium gas supply device for heating and reused.
  • the recycling device without opening the heating helium supply device, first recovering the low-temperature helium gas, and the pipeline to be recycled to the user terminal and the recycling device to the high-temperature helium gas supply device.
  • the low temperature helium gas remaining in the middle is basically recovered and then the valve of the heating helium supply device is turned on.
  • a differential pressure sensor is also installed at the position 11 of the inlet pipe 2 to determine that the helium gas has been evacuated and the valve of the warm gas supply device is turned on.
  • the recycling device is designed to be activated by the flow of helium, in which case a temperature sensor and a flow sensor can be installed in the inlet pipe 2, ie at the location 11, in the outlet pipe 3, ie in position 12
  • a differential pressure sensor and a flow sensor are installed at the site.
  • the gas supply valve of the heating helium supply device is turned on, the helium gas starts to flow, and the flow signal detected by the flow sensor starts the recycling device to make it enter the working state, and then the normal supply according to the requirements of the helium gas temperature meets the requirements.
  • the helium gas is supplied to the required helium gas after recovering the unqualified helium gas, and the direction of the three-way valve 1 is changed by the signal that the gas measured by the differential pressure sensor is evacuated.
  • the gas supply valve of the helium supply device or the valve of the user end is closed, the helium gas stops flowing and the recycling device is taken out of operation.
  • the circuit of the controller is designed to use the temperature sensor to measure the temperature of the helium gas in the pipeline that does not meet the requirements and the signal from the flow sensor to start the flow of the liquid to trigger the recovery device, A flow sensor needs to be installed at position 11 or 12.
  • the regenerative device can also be installed in the inlet line of the raw material helium gas of the supply device for the heated helium gas supply device having no gas storage container inside.
  • the difference from the installation in the outlet line is: Install the temperature sensor installed at position 11 in the helium outlet line of the supply device, and save the flow sensor installed at position 11; in the pipe measured by the temperature sensor If the temperature of the helium gas is too low and does not meet the requirements, the low-temperature helium gas stored in the pipeline of the heating helium gas supply equipment and then to the user end will be extracted all at once.
  • the differential pressure sensor measures that there is no helium in the pipeline.
  • the program is automatically stopped, the warmed helium that meets the requirements is sent to the user.
  • Embodiment 6 A hot water supply system in which a bathroom boiler is a heat source of a hot water supply system and an automatic recycling device is installed in a hot water outlet pipe.
  • the recycling device is installed in a hot water outlet pipe close to the boiler 21, and the inlet pipe 2 connected to the three-way structure 1 is connected to the hot water outlet 22 of the boiler 21, and the outlet pipe 3 is connected to the customer end and the valve 20 thereof.
  • the extraction pipe 4 is connected to the water pump 5, and then connected to the water tank 12 through the outlet pipe 9.
  • the valves 6, 7, 8 on the three-way structure 1 are electromagnetic ceramics, wherein the inlet pipe solenoid valve 6 and the outlet pipe solenoid valve 7 are normally opened and extracted.
  • the pipe solenoid valve 8 is normally closed, and the outlet pipe 9 is provided with a normally open outlet pipe solenoid valve 17 near the water tank 12, and a branch pipe 15 equipped with a normally closed branch pipe solenoid valve 16 is connected to the outlet pipe 9, and the branch pipe 15 is connected through the tee pipe
  • the inlet and outlet pipes of the inlet valve 24 are connected to the cold water inlet 23 of the boiler 21, and the check valve near the inlet valve 24 is provided with a check valve 25, and the lower portion of the water tank 12 is provided with a water outlet 18, a cold water outlet pipe and a valve 19 thereof.
  • the nozzle 18 is connected to the pipe between the water pump 5 and the three-way structure 1 through the circulation pipe 13, that is, the extraction pipe 4, and the circulation pipe 13 is provided with a normally closed solenoid valve 14, and the solenoid valves 6, 7, 8 in the three-way structure 1.
  • a temperature sensor and pressure transmission are placed at the position 10 between the tees
  • the electric resistance measuring probe (not shown), the sensing element, the water pump and the controller (not shown) are electrically connected, and the controller controls the opening of the electromagnetic valve according to the preset control condition and the signal of the sensing element. , off and start and stop of the pump.
  • a high water level sensor is disposed in the upper middle portion of the water tank 12, and a low water level sensor (not shown) is disposed in the lower portion, and the water level sensor and the controller for controlling the opening and closing of the electromagnetic valves 14, 16, 17 ( It can be the same controller as above).
  • the controller is also equipped Display parts.
  • the specific working procedure of the above-mentioned boiler equipped with the cold water recycling device is: Turning on the power switch of the hot water switch of the boiler 21 and the recycling device, when the valve 20 of the user end is not opened, the water in the pipe does not flow, and the recycling device When it is in the working state, each solenoid valve and pump do not operate; open the valve 20 of the user end (such as the shower head), the water in the pipe begins to flow, and the water flow signal measured by the pressure sensor in the tee makes the recycling The device is activated and begins to enter the working state.
  • the temperature sensor measures that the temperature of the water in the pipeline is lower than the temperature or temperature range set by the controller
  • the signal obtained by the sensor passes through the controller to open the outlet solenoid valve 7, the extraction tube solenoid valve 8 is opened, and the inlet solenoid valve 6 is closed.
  • the solenoid valve 17 is kept open, and the water pump 5 is started at the same time (the working procedure is preferably set to: open the extraction pipe solenoid valve 8, start the water pump 5, close the inlet solenoid valve 6), and place the three-way structure 1 into the pipeline of the user end.
  • the low-temperature water or cold water is pumped into the water tank 12 through the outlet pipe 3, the outlet electromagnetic wide 7, the three-way pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the water pump 5, the outlet pipe 9, and the electromagnetic valve 17 for reuse;
  • the pressure sensor changes according to the pressure, or the resistance probe detects that there is no liquid in the pipeline according to the resistance change (the pressure is a small negative pressure, the resistance is large)
  • the electromagnetic valve 6 and the extraction tube are electromagnetically passed through the controller.
  • the wide 8 is opened, the outlet solenoid valve 7 is closed, and the liquid pump 5 continues to work (the working procedure is preferably set to: open the inlet solenoid 6 and close the outlet solenoid valve 7), which will be recycled.
  • the low temperature water or cold water in the pipeline of the device to the boiler 21 is drawn through the inlet pipe 2, the inlet pipe solenoid valve 6, the tee pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the water pump 5, the outlet pipe 9, and the solenoid valve 17.
  • the water tank 12 is ready for reuse (or relies on the pressure in the internal piping of the system to keep the water flowing into the water tank 12 without starting the water pump), and the hot water outlet of the boiler 21 gradually starts to flow out of the hot water;
  • the solenoid valves 6 and 7 are returned to the open state by the controller, and the pumping electromagnetic tube 8 is returned to the closed state, and the liquid pump 5 is stopped (the working procedure is preferably set) It is determined as: Open the outlet solenoid valve 7, close the extraction tube solenoid valve 8, close the water pump 5), the hot water that meets the requirements can pass through the inlet tube of the recycling device, the inlet solenoid valve 6, the tee, the outlet 3 and the outlet tube electromagnetic pottery 7 is sent to the user end, and the water released is hot water.
  • the solenoid valve 14 and the solenoid valve 16 are opened by the controller, the electromagnetic wide 17 is turned off, and the water pump 5 is started.
  • the recovered cold water in the water tank 12 is pressed into the water inlet pipe of the boiler; when the low water level sensor in the lower part of the water tank 12 senses that there is no water in the water tank, the solenoid valve 17 is opened by the controller and the water pump is turned off, and the electromagnetic valve 14 is closed. With the solenoid valve 16, the entire recycling device returns to normal.
  • the recycling process for recycling cold water can also be designed as another control method:
  • the pressure sensor in the tee of the recycling device changes according to the pressure, or the resistance probe changes the resistance of the three-way structure 1 to the user's pipe.
  • the liquid has been evacuated (the pressure is a small negative pressure close to zero, the resistance is very large) and the outlet solenoid valve 7 is closed by the controller, the inlet solenoid valve 6 and the extraction tube solenoid valve 8 are opened, and the water pump 5 continues to work.
  • the same valve is opened by the controller to open the electromagnetic valve 16 on the branch pipe 15, and the electromagnetic valve 17 close to the outlet pipe 9 is closed to the end of the liquid storage tank, and the recycling is utilized.
  • the low-temperature water or cold water in the pipeline of the device to the boiler 21 is pressed into the boiler 21 or the storage tank of the boiler through the cold water inlet pipe (the working procedure is preferably set to: open the inlet pipe electromagnetic pottery 6, close the outlet pipe solenoid valve 7 Open the solenoid valve 16 and close the electromagnetic pottery 17) until the temperature sensor detects that the temperature of the water in the recycling device has met the requirements and is recycled by the controller.
  • the controller continues to keep the solenoid valve 16 open, The start of the water pump 5 and the closing of the solenoid valve 17, simultaneously open the normally closed electromagnetic cymbal 14, and pass the recovered cold water in the water tank 12 through the circulation pipe 13, the electromagnetic valve 14, the extraction pipe 4, the water pump 5, the outlet pipe 9, the branch pipe 15, and the electromagnetic
  • the valve 16 is pressed into the boiler 21 or in the water storage tank of the boiler (the working procedure is preferably set to: open the outlet solenoid valve 7, the circulation tube electromagnetic valve 14, close the extraction tube solenoid valve 8); until the low water level in the lower part of the water tank 12
  • the sensor senses that there is no water in the water tank, the water pump 5 and the electromagnetic valve 14 and the electromagnetic valve 16 are turned off by the controller, and the electromagnetic valve 17 is opened to restore the normal state of the device (the working program is
  • the pressure sensor detects that the liquid stops flowing, and the signal is taken out of the working state by the controller, and the electric valve and the liquid pump are returned to the normal state, and Snoring the user valve 20 at the same time After the outlet valve of the boiler 21, the pressure sensor detects that the liquid begins to flow, and the device re-enters the working state.
  • a preferred embodiment is to install a normally controlled electric valve 26 controlled by the controller in the direction of the cold water (the one-way valve 25 can be eliminated).
  • the solenoid valve 26 is closed by the controller, and the recovered cold water in the water tank 12 is quickly exhausted.
  • the cold water from the valve 24 can enter the boiler 21 by the controller turning off the water pump 5, closing the solenoid valve 14 and the solenoid valve 16 and opening the solenoid valve 17 while opening the electric valve 26.
  • the working pressure of the water pump 5 is not necessarily higher than the pressure of the cold water inlet pipe.
  • a one-time signal button (not shown) that gives a voltage signal through a resistor-capacitor circuit within a certain turn (adjustable from 1 second to 10 minutes) is also mounted on the controller.
  • the pressure sensor detects that the liquid starts to flow (when a valve is opened) or accelerates the flow (the other valve is opened when the valve is opened) and the pressure is reduced.
  • the small signal is combined with the above voltage signal, and the controller circuit converts the signal outputted by the temperature sensor into a signal whose temperature does not meet the requirements, and restarts the recycling device once.
  • the recovery device can be started again by pressing the button and then opening the valve of the other user terminal (regardless of whether the actual water temperature measured by the temperature sensor meets the requirements).
  • the water in the opened user pipeline is recovered, and the water that meets the temperature requirement is discharged after the recovery is completed; if the previous user is still using the water heater 21, when the button is pressed first, the valve of the other user is newly opened,
  • the flow rate of the liquid is increased, and the signal measured by the pressure sensor due to the accelerated flow of the liquid and the pressure is reduced is combined with the voltage signal, and the signal output by the temperature sensor is instantly changed to a signal whose temperature is not satisfactory.
  • the recovery unit is restarted once, and the water in the opened user line is forcibly recovered (whether or not the temperature is satisfactory) while the previous user is still using it, and the temperature-compliant water is discharged after the recovery is completed. If the valve of the other user is turned on after the button is pressed and the voltage of the other terminal is turned on, the recycling device will not start again because the voltage signal given by the circuit has disappeared.
  • a continuous signal switch (not shown) can be mounted on the controller, and the switch can continuously provide a voltage signal through the circuit, the signal and the pressure sensor each time the user valve is opened.
  • the combination of the measured pulse signal due to the start of the flow of the liquid (when a valve is opened) or the accelerated flow (the other valve is opened when the existing wide door is opened) can be output by the controller by the temperature sensor.
  • the signal immediately becomes a signal whose temperature does not meet the requirements.
  • the following method can also be used: first open the wide door 20 of all the user ends, and then open the outlet valve of the boiler 21, at this time, due to recycling Using the temperature sensor in the device to measure that the remaining liquid in the pipeline does not meet the requirements and needs to be recycled, the signal of the sensor can pump the cold water or low temperature water in the pipeline of the three-way structure 1 to each customer end into the water tank 12; According to the pressure change or the resistance probe detects the three-way structure 1 according to the change of the resistance, when there is no liquid in the pipeline of each customer end, the low-temperature water or cold water in the pipeline of the recycling device to the boiler 21 is pumped into the water tank 12; When the sensor measures that the temperature of the water in the pipeline of the recycling device has met the requirements, the hot water that meets the requirements can be sent to each user terminal through the recycling device, and the hot water can be directly discharged from the plurality of customer pipelines.
  • the boiler can also be equipped with a cold water pipe connected to the customer end and a regulating valve for adjusting the mixing ratio of the cold water and the hot water as in the prior art to adjust the temperature of the hot water supplied by the boiler.
  • the solenoid valves 6, 7, 8 and the three-way pipe in this embodiment can be similarly used if they are replaced by the electric three-way valve of Embodiment 2 or an electric reversing pottery or the like.
  • the circulation pipe 13, the branch pipe 15, and the valve thereon are removed and the design of the control circuit is changed accordingly, the procedure of pressing the recovered cold water in the water tank 12 into the water inlet pipe of the boiler 21 can be eliminated, and the cold water in the water tank 12 can be eliminated. It can be used separately; it is also possible to cancel only the circulation pipe 13 and the valve thereon and change the design of the control circuit accordingly, and press the low-temperature water or the cold water in the pipe of the recycling device to the boiler 21 to press it into the boiler 21
  • the water inlet pipe 23 is recycled. This requires fewer parts and lowers the pump's working pressure. Low, there is no problem of disturbing the quality and pressure of the water in the inlet pipe when the recovered low-temperature water or cold water is returned to the inlet pipe.
  • Embodiment 7 A gas water heater in which a recycling device is installed in a cold water inlet pipe of a gas water heater.
  • the recycling device is installed in a cold water inlet pipe close to the water heater 21, and the outlet pipe 3 is connected to the cold water inlet 23 of the water heater 21, and the hot water outlet 22 of the water heater 21 is connected to a pipe leading to the customer terminal and its valve 20.
  • the extraction pipe 4 is connected to the water pump 5, and then passes through the outlet pipe 9 to the water tank 12.
  • the outlet pipe 9 is provided with a normally open solenoid valve 17 near the water tank 12, and the middle of the outlet pipe 9 passes through the tee pipe and the normally closed electromagnetic valve 16 is provided.
  • the branch pipe 15 is connected, and the branch pipe 15 is connected to the cold water inlet pipe of the water inlet valve 24 and the inlet pipe 2 of the recycling device through the three-way pipe, and the water tank 12 is provided with a water outlet 18, a cold water outlet pipe and a valve 19 thereof.
  • the nozzle 18 is connected to the extraction pipe 4 between the water pump 5 and the three-way structure 1 through a circulation pipe 13 and a three-way pipe.
  • the circulation pipe 13 is provided with a normally closed electromagnetic valve 14, and the inlet pipe 2 and the outlet pipe 3 of the recycling device
  • the valve 6, the valve 7, and the valve 8 on the extraction pipe 4 are electromagnetic enthalpy, wherein the inlet solenoid valve 6, the outlet solenoid valve 7 are normally open, the extraction pipe solenoid valve 8 is normally closed, and is installed in the pipe near the water outlet 22.
  • thermocouple not shown in the figure
  • a flow sensor and a conductivity sensor are installed in the cold water inlet 23, and a conductivity sensor for sensing whether the liquid is evacuated is provided in the water outlet 18 of the water tank 12 (not shown)
  • the sensing element is electrically connected to the controller (not shown) by a wireless method, wherein the thermocouple circuit is serially connected to the power supply circuit of the recycling device, and when the water temperature meets the requirements, the power circuit is blocked, and the recovery is performed.
  • the obtained signal is powered by the controller to enter the working state; the controller is based on the preset control conditions and the sensing element The signal controls the opening and closing of each electromagnetic wide and the start and stop of the water pump.
  • the specific working procedure of the above-mentioned gas water heater equipped with the cold water recycling device is: opening the water, electricity, gas and other switches of the water heater 21 and the power switch of the recycling device, opening the valve 20 of the user end, the water in the pipeline starts to flow, the water heater 21 starts working; if the thermocouple measures the temperature of the water in the pipeline to meet the set temperature or temperature range, the recycling device does not work, the electromagnetic poles and the pump do not work, the water heater supplies hot water normally; if the thermocouple measures the pipeline When the temperature of the medium water is lower than the temperature or temperature range set by the controller, the recycling device enters the working state, and the liquid flow signal obtained by the flow sensor passes through the controller to open the outlet solenoid valve 7, the extraction tube solenoid valve 8, and the water pump 5 Start, the inlet solenoid valve 6 is closed, and the low-temperature water or cold water in the pipe of the three-way structure 1 to the user end (including the inner pipe of the water heater) passes through the outlet pipe 3, the outlet pipe sole
  • the extraction pipe 4, the water pump 5, the outlet pipe 9, and the solenoid valve 17 are pumped into the water tank 12 for reuse.
  • the working procedure is best set to: open the extraction tube electromagnetic width 8, open the water pump 5, close the inlet solenoid valve 6); when the conductivity sensor detects that there is no liquid in the pipeline according to the conductance change (the conductance is small at this time), The inlet solenoid valve 6 is opened by the controller, the outlet solenoid valve 7 is kept open, the extraction tube solenoid valve 8 is closed, and the liquid pump 5 is stopped.
  • the working procedure is preferably set to: open the inlet tube electromagnetic pottery 6, close the water pump 5.
  • the cold water is sent to the gas water heater through the inlet pipe 2, the inlet pipe solenoid valve 6, the tee pipe, the outlet pipe 3 and the outlet pipe solenoid valve 7 of the recycling device, and is continuously heated by the water heater After delivery to the client.
  • the solenoid valve 14 and 16 are opened by the controller, the electromagnetic grid 17 is turned off, and the water pump 5 is started.
  • the recovered cold water in the water tank 12 is pressed into the cold water inlet pipe of the water heater 21 through the water outlet 18, the circulation pipe 13, the electromagnetic valve 14, the extraction pipe 4, the water pump 5, the outlet pipe 9, the branch pipe 15, and the electromagnetic wide 16;
  • the conductivity sensor provided in the water outlet 18 of the 12 senses that there is no water in the water tank 12, that is, the solenoid valve 14 and 16 are closed by the controller, the electromagnetic valve 17 is opened, and the water pump is turned off, and the recycling device returns to the normal state.
  • the reuse process of the recovered cold water can also be designed as another control mode controlled by the controller according to the signal of the conductivity sensor in the cold water inlet 23, and the specific working procedure is as follows: When the conductivity sensor detects the three-way structure according to the pressure change When the liquid in the pipe to the customer end has been evacuated (at this time, the conductance is small), the inlet solenoid valve 6 of the recycling device is opened by the controller, the outlet solenoid valve 7 is kept open, and the solenoid valves 8, 17 are closed.
  • the solenoid valves 14, 16 are opened, the water pump 5 continues to work, and the water heater 21 starts to supply the hot water that meets the temperature requirement normally, and the recovered cold water in the water tank 12 is taken out through the water outlet 18, the circulation pipe 13, the electromagnetic valve 14, and the water is taken out.
  • the tube 4, the water pump 5, the outlet tube 9, the branch tube 15, and the solenoid valve 16 are pressed into the cold water inlet pipe of the water heater 21 (the working procedure is preferably set to: open the solenoid valves 6, 14, 16 and close the solenoid valves 8, 17) ), until the conductivity sensor provided at the water outlet 18 senses that there is no water in the water tank 12
  • the solenoid valve 16 is closed by the controller, the electromagnetic wide 17 is turned on and the water pump 5 is turned off, and the recycling device returns to the normal state.
  • the flow sensor detects the flow of the liquid to stop flowing through the controller to return the various electric and liquid pumps to normal.
  • the three-way pipe with solenoid valves 6, 7, 8 (since the outlet pipe 3 is always open and the solenoid valve 7 can be omitted) can be replaced by an electric three-way valve or commutating.
  • the recycling device can also be used for other hot water supply systems or equipment such as instant electric water heaters that do not have a liquid storage device but that rapidly heat the cold water.
  • a preferred embodiment is to switch the branch pipe 15 from the conduit between the solenoid valve 6 and the valve 24 to the conduit between the solenoid valve 6 and the solenoid valve 7 (as indicated by the thick dashed line in Figure 4). ), by changing the program set by the controller, after pumping the low-temperature water or cold water in the pipe of the three-way structure 1 to the user end (including the inner pipe of the water heater) into the water tank, the electromagnetic valves 14 and 16 are closed, and the electromagnetic valve is closed.
  • the recovered cold water in the water tank 12 is pressed into the cold water inlet pipe of the water heater 21, that is, the pipe between the electromagnetic valve 6 and the electromagnetic valve 7 (the electromagnetic valve 6 is closed);
  • the recovered cold water is quickly exhausted, and the solenoid valve 6 is opened while the water pump is turned off by the controller turning off the water pump, closing the solenoid valve 14 and the solenoid valve 16, and opening the solenoid valve 17, and the cold water from the wide door 24 can enter the water heater. This will reduce the requirement for the working pressure of the pump 5.
  • Embodiment 8 A gas water heater using a recycling device of a two-way water pump is installed in a cold water inlet pipe of a gas water heater. See Figure 5.
  • the recycling device is installed in the cold water inlet pipe adjacent to the water heater 21, and the inlet pipe 2 is connected to the cold water inlet pipe with the check valve 25 and the inlet valve 24, and the outlet pipe 3 and the cold water inlet 23 of the water heater 21
  • the extraction pipe 4 is connected to the two-way water pump 5, and then directly leads to the near bottom of the water tank 12 through the outlet pipe 9, the inlet pipe 2 of the recycling device 2, the outlet pipe 3, and the valves 6, 7, 8 on the extraction pipe 4 are solenoid valves , wherein the inlet solenoid valve 6, the outlet solenoid valve 7 is normally closed, the extraction tube solenoid valve S is normally closed, and the hot water outlet 22 of the water heater 21 is connected to the pipeline leading to the user end and its valve 20, at each customer end valve Telemetry temperature sensor and flow sensor are installed at 32 outside the nearby pipeline (the flow
  • the specific working procedure of the above-mentioned gas water heater equipped with the cold water recycling device is: opening the corresponding water, electricity, gas and other switches of the water heater 21 and the power switch of the recycling device; opening the valve 20 of any user end, the water in the pipeline starts to flow
  • the water heater 21 starts to work; if the temperature of the water in the pipeline is lower than the temperature or temperature range set by the controller, the temperature sensor of the user end and the signal obtained by the flow sensor can start the controller to close the inlet solenoid valve 6
  • the outlet solenoid valve 7, the extraction tube solenoid valve 8 is opened, the water pump 5 is started in the forward direction, and the low-temperature water or cold water in the pipeline of the three-way structure 1 to the user end (including the internal pipeline of the water heater) is passed through the outlet pipe 3, the outlet pipe solenoid valve 7.
  • the three-way pipe, the extraction pipe solenoid valve 8, the extraction pipe 4, the water pump 5, and the outlet pipe 9 are pumped into the water tank 12 for reuse (the working procedure is preferably set to: open the extraction pipe solenoid valve 8, start the water pump 5 Close the inlet solenoid valve 6); when the conductivity sensor detects that the liquid in the pipeline has been evacuated according to the change in conductance (the conductance at this time) Small, but there is still air flow), the inlet solenoid valve 6 is opened by the controller, the outlet solenoid valve 7 is kept open, the extraction pipe solenoid valve 8 is closed, and the liquid pump 5 is stopped (the working procedure is preferably set to: Open the inlet solenoid valve 6, close the water pump 5 and the extraction tube solenoid 8), the cold water passes through the inlet tube of the recycling device 2, the inlet tube electromagnetic wide 6, the tee tube, the outlet tube electromagnetic pottery 7 and the outlet tube 3 are sent to the gas In the water heater, it is continuously heated by the water heater and delivered to the user end. Since the
  • the electromagnetic pump 8 is opened simultaneously by the controller, and the water pump 5 is reversely activated, and the water tank 12 is turned into the water tank 12
  • the recovered cold water is pressed into the water inlet pipe of the water heater 21 through the outlet pipe 9, the water pump 5, the extraction pipe 4, and the extraction pipe solenoid valve 8; when the low water level sensor in the lower portion of the water tank 12 senses that there is no water in the water tank 12,
  • the controller closes the extraction pipe solenoid valve 8 and closes the water pump 5, and this part of the recycling device returns to the normal state.
  • This solution requires that the three directions of the three-way structure 1 can be opened simultaneously.
  • a preferred embodiment is: after the liquid in the pipe of the three-way structure 1 to the customer end is evacuated, the inlet solenoid valve 6 is kept closed by the controller, the extraction pipe solenoid valve 8 is kept open, and the water pump 5 is started in the reverse direction, first The recovered cold water in the water tank 12 is pressed into the water inlet pipe of the water heater 21; when the recovered cold water in the water tank 12 is nearly exhausted, the electromagnetic wide 6 is opened by the controller, and the water pump 5 and the extraction pipe solenoid valve 8 are closed at the same time, The cold water of the valve 24 can enter the water heater 21.
  • the pump 5 required in this way can have a lower working pressure and does not require the three directions of the three-way structure 1 to be simultaneously opened.
  • the hot water supply system can also install a cold water pipe connected to the customer end and an adjusting ceramic door for adjusting the mixing ratio of the cold water and the hot water as in the prior art to adjust the temperature of the hot water supplied by the water heater. Since the temperature sensor is installed near the valve of each user end, if the previous user is using it or after the water heater is deactivated, if the valve 20 of the other user end is opened and the temperature of the water in the user pipe is lower than the controller The signal from the temperature sensor of the user can still restart the recycling program when the temperature or temperature range is set.
  • the water pump 5 is changed to a one-way water pump and the design of the control circuit is changed accordingly, the procedure of pressing the recovered cold water in the water tank 12 into the water inlet pipe of the water heater 21 can be eliminated, and the extracted cold water can be utilized separately. This requires fewer parts and lower pump requirements.
  • Example 9 Electric water heater directly connecting the outlet pipe to the raw liquid inlet pipe of the water heater
  • the recycling device is installed in a hot water outlet pipe near the electric water heater 21, and the inlet pipe 2 connected to the three-way structure 1 is connected to the hot water outlet 22 of the water heater 21, and the outlet pipe 3 and the user end and the valve thereof 20 communicates, the extraction pipe 4 is connected to the water pump 5, and then directly communicates with the inlet and outlet pipes of the water heater through the outlet pipe 9, the inlet pipe 2 of the recycling device 2, the outlet pipe 3, and the valves 6, 7, 8 on the extraction pipe 4 are solenoid valves , wherein the inlet electromagnetic tube is wide 6, the outlet solenoid valve 7 is normally open, the extraction tube solenoid valve 8 is normally closed, and the outlet tube 9 is provided with a check valve 25 to eliminate the influence of the cold water in the cold water pipe on the water pump 5, In the tee between the solenoid valves 6, 7, 8 of the three-way structure 1, a flow switch, a temperature sensor, a conductivity sensor (not shown), a flow switch, a sensor, and a pump are controlled at position 10.
  • the specific working procedures of the above water heater are: opening the valve of the water heater 21 and the power switch of the recycling device.
  • the valve 20 of the user end When the valve 20 of the user end is not opened, the water in the pipeline does not flow, the recycling device is in a standby state, and each solenoid valve and pump No action; Open the valve 20 of the user end (such as the bathroom shower head), the water in the pipe begins to flow, and the flow switch in the tee connects the power of the recycling device to the working state through the circuit of the controller.
  • the temperature sensor detects that the temperature of the water in the pipeline is lower than the temperature or temperature range set by the controller
  • the signal obtained by the sensor is passed through the controller to open the solenoid ⁇ 7
  • the extraction solenoid valve 8 is opened
  • the inlet solenoid valve is opened. 6Close, the pump 5 is started at the same time (the working procedure is preferably set to: open the extraction pipe solenoid valve 8, start the water pump 5, close the inlet solenoid valve 6), and pass the three-way structure 1 to the low temperature water or cold water in the pipeline of the user end.
  • the outlet pipe solenoid valve 7 Through the outlet pipe 3, the outlet pipe solenoid valve 7, the three-way pipe, the extraction pipe electromagnetic pottery 8, the extraction pipe 4, the water pump 5, and the outlet pipe 9 are pumped into the cold water pipe of the water heater; when the conductivity sensor is measured in the pipe according to the change of the conductance
  • the inlet electromagnetic wide 6 and the extraction pipe solenoid valve 8 are opened by the controller, the outlet solenoid valve 7 is closed, and the liquid pump 5 continues to work (the working procedure is best) Set to: open the inlet solenoid valve 6, close the outlet solenoid valve 7), pass the low temperature water or cold water in the pipeline of the recycling device to the water heater 21 through the inlet pipe 2, the inlet pipe solenoid valve 6, the tee pipe, and the extraction tube
  • the magnetic valve 8, the extraction pipe 4, the water pump 5, and the outlet pipe 9 are pumped into the cold water pipe of the water heater, at which time the hot water outlet of the water heater 21 gradually starts to flow out of the hot water; when the
  • the water that is released is hot water. It is also possible to first recover the low-temperature water or cold water in the pipe of the water-passage 21 from the three-way structure 1 to the water heater 21 by changing the controller program, and then recover the low-temperature water or cold water in the pipe of the three-way structure 1 to the customer end, so that the water heater can continue to work for a while. , will not stop immediately after starting.
  • the recycling device can also be installed in a pipeline of a cold water inlet of a hot water supply device (for example, a common gas water heater or a hot electric water heater without a liquid tank) having no liquid tank therein, but only installing the temperature sensor.
  • the solenoid valve 7 can be omitted, the inlet pipe 2 is connected with the inlet cold water pipe, the outlet pipe 3 is connected with the cold water inlet of the water heater, the hot water outlet of the water heater is connected to the user terminal and its valve 20
  • the pipes are connected, the extraction pipe 4 is connected to the water pump 5, and then directly passed through the outlet pipe 9 to the inlet cold water pipe.
  • the signal obtained by the sensor is turned on by the controller, the pump solenoid valve 8 is opened, the water pump 5 is started, the inlet solenoid valve 6 is closed, and the three-way structure is closed.
  • the inlet solenoid valve 6 is opened by the controller, the extraction pipe solenoid valve 8 is closed, and the liquid pump 5 stops working.
  • the cold water is sent to the gas water heater through the inlet pipe 2 of the recycling device, the inlet solenoid valve 6, the tee pipe, and the outlet pipe 3, and is continuously heated by the water heater and sent to the user end.
  • outlet pipe 9 of the recycling device does not communicate with the inlet and outlet pipes of the water heater, but leads to a liquid storage device, and the cold water in the liquid storage device is separately utilized, the recovered low-temperature water or cold water can be eliminated.
  • the procedure of pressing into the cold water pipe of the water heater is such that the pressure requirement of the pump is lowered, and there is no problem that the quality and pressure of the water in the pipe are disturbed when the recycled cold water is pressed into the cold water pipe.
  • Example 10 Gas water heater equipped with a recycling device that connects a water pump in series between an inlet pipe and an outlet pipe
  • the two ends of the water pump 5 are directly connected to the inlet pipe 2 and the outlet pipe 3 of the recycling device, that is, directly connected between the inlet pipe and the outlet pipe, and the flow direction of the water when the water pump is working is opposite to the flow direction of the original water in the pipe.
  • the recycling device is preferably installed in the pipeline of the gas water inlet of the gas water heater.
  • the inlet pipe 2 is connected to the cold water inlet pipe with the valve 24, and the outlet pipe 3 is connected to the cold water inlet 23 of the gas water heater 21, and the heat of the gas water heater 21
  • the water outlet 22 is connected to the pipe at the customer end, and each user terminal has a valve 20.
  • a bimetal temperature switch is installed at the pipe 32 of the hot water outlet 22 of the gas water heater, and a liquid flow switch is installed at the pipe 31 between the water pump and the cold water inlet 23 of the gas water heater (to avoid misoperation, it is preferable to install the liquid flow switch)
  • the bimetal temperature switch is opened when the temperature meets the requirements
  • the liquid flow switch is opened when there is no liquid flow, and the two are connected in series in the power supply circuit of the water pump 5 through the controller 30.
  • the output pump pressure of the water pump of the technical solution should be greater than the water pressure in the cold water inlet pipe, and the water in the pipeline can pass normally after the water pump is not started; if the two ends of a pipe are connected with the two ends of the water pump, the pipeline An electric valve is provided. When the water pump is working, the electric valve is closed. When the water pump stops working, the electric valve is opened, and the problem that the water in the pipeline passes normally when the water pump is not started can also be solved.
  • the gas water heater starts to work, the water starts to flow, and the liquid flow switch is closed; but if the temperature of the water in the pipeline of the gas water outlet 22 of the gas water heater meets the requirements at this time, The bimetal temperature switch is disconnected, the water pump 5 is not activated, and the water heater 21 normally supplies hot water that meets the requirements; if the temperature of the water in the pipeline does not meet the requirements and needs to be recycled, the bimetal temperature switch is closed, the water pump 5 is started, and the water pump 5 is recycled.
  • the water in the internal pipeline of the water heater and the water in the customer pipeline is reversely extracted and pressed into the cold water inlet pipe.
  • the liquid flow switch is disconnected, the water pump 5 is stopped, and the water heater 21 can be normally supplied. Hot water required. Due to the reduction of the three-way structure and related valves, the volume and cost of this solution are further reduced, and the recycling device and the corresponding sensing element can be inserted only by disassembling the connection nut of the inlet and outlet of the gas water heater. In the pipeline, it is not necessary to change the original pipelines and valves, so it is very convenient to install and maintain.
  • the recycling device can also be installed in the pipeline of the liquid supply system or the liquid outlet of the device, except that the bimetal temperature switch and the liquid flow switch are installed in the pipeline of the hot water outlet 22 of the gas water heater to the user end, but the shortage is insufficient. It is not possible to recycle the liquid supply system or the liquid inside the equipment.

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Description

流体供应系统或设备中存留流体的回收利用装置及其使用方法
技术领域
本发明涉及流体供应系统或设备中存留流体的回收利用装置,特别是涉及液体供应系统或设备中不 符合要求的液体介质的回收利用装置, 更特别的是涉及使用锅炉、 燃气热水器、 电热水器、 太阳能热水 器等进行洗浴的热水供应系统或设备的管路中(包括通向用户末端的管道中和热水供应系统或设备内部 的管道中)存留冷水的回收利用装置。本发明还涉及包含该回收利用装置的系统或设备及该回收利用装 置的使用方法。
背景技术
在日常生产、 生活中, 经常需要使用由流体供应系统或设备(包括由多个设备或设施组成的较大的 供应系统和单个的供应设备) 输送出来的一些经过处理的具有某种特定性能的流体 (包括液体、 气体、 可流动的粉末), 特别是由液体供应系统或设备输送出来的一些经过处理的具有特定性能的液体。 例如 化工上使用的对液体进行增氧、 加二氧化碳、 调 PH后用于生产的液体供应系统, 利用锅炉或制冷设备 对水进行加热或制冷后用于生产或生活的热水或冷水供应系统或设备,对气体或流动粉末进行加温后用 于生产的加热气体或加热流动粉末供应系统, 等等。其中最常见的是使用热水器对水加热后用于洗浴的 热水供应设备。这些流体供应系统或设备有一个共同的特征, 就是将流体进行特定的处理后使其获得特 定的理化性能, 然后经过管道输送到用户端, 供用户使用。 但是在不连续使用期间特别是在停用后, 管 道中经过特定处理所获得的流体的理化特性会不断改变, 例如经过加热的会变冷, 经过冷却的会慢慢升 至环境温度, 经过增氧的液体的氧气会逐渐挥发, 经过加二氧化碳的液体的二氧化碳会逐渐挥发, 调 PH后液体的 pH会慢慢改变, 等等, 因而在停用一定时间后管道中的流体会变得不符合要求。 对此的解 决办法一般是在下一次开始使用时用经过特定处理的新鲜流体将不符合要求的流体顶出用户端并弃去, 这样就造成了流体的很大浪费。例如利用锅炉或家用热水器进行淋浴或洗涤时, 用户水龙头开始流出的 是管道中存留的冷水, 待冷水排完后才能流出适于淋浴或洗涤的热水, 人如果与之接触会感到不舒适甚 至引起感冒, 白白排掉的冷水也造成了很大的浪费, 在锅炉或热水器与浴室或洗脸池、 洗菜池相隔较远 时更是如此。
为了解决这一问题, 中国专利申请 CN101029773A公开了一种余水自动回流再利用式热水器节水装 置, 采用水阀、 泵及控制电路将管道中的余水抽入储水箱或泵入热水器以供再利用。 但是, 该专利申请 是在关机时将管道中的余水抽回储水箱以备再用, 需要在各用户末端安装用户终端控制电路并取消阀 门, 并且需要安装节水装置至每个用户终端的各自的阀门和管道, 通过控制电路来调节阔门的开关及出 水量的大小, 整个装置比较复杂, 并且不适合已装修的居室和安装好的热水器及其管道。 巿售的赛科拉 公司的热水器循环系统是在未开启用户端阀门的情况下,先开启热水供应系统或设备并启动热水器循环 系统, 用泵将热水管道中的冷水打到与之相通的冷水管道中, 待管道中的水变热以后再开启用户端阀门 使用热水。 但它需要改动原有的管路, 而且只能回收主管道中的余水, 无法回收分支管道包括用户端分 支管道中的余水, 因此刚从用户端阀门出来的水还是冷水。
发明内容
本发明所要解决的技术问题是提供一种简便的回收利用装置,该回收利用装置可以自动地实现对流 体供应系统或设备中(既包括通向用户端的管道中又包括流体供应系统或设备内部)不符合要求的存留 流体的回收, 同时不需要改变原有的管路和阀门。
本发明所要解决的另一个技术问题是提供将回收的流体送回流体供应系统或设备中进行再利用的 多种技术方案。
本发明所要解决的另一个技术问题是为这种回收利用装置提供一种强制回收流体的部件,使其在前 一个用户正在使用时或停用后较短的时间内另一个用户开启阀门时也能启动回收程序,达到另一个用户 端出口刚流出的流体也能符合要求的目的。
本发明所要解决的再一个技术问题是提供含有这种回收利用装置的多种流体供应系统或设备,特别 是含有这种回收利用装置的热水供应系统或设备。
本发明所要解决的再一个技术问题是提供这种回收利用装置的多种安装和使用的方法。
本发明所要解决的再一个技术问题是提供这种回收利用装置用于多个用户端的方法,使得可以方便 地对多个用户端管道中不符合要求的流体进行回收和再利用, 然后向各个用户端供应符合要求的流体。
该回收利用装置串联在所述流体供应系统或设备的管路中, 包括引入流体的进管(2), 排出流体的 出管(3) , 与所述进管和出管相通的流体输送装置, 其特征在于: 在流体的管路中或管路外设有至少一 个流体状况传感元件,在所述流体供应系统或设备出口端的管路中或管路外设有至少一个流体性能传感 元件, 所述传感元件和所述流体输送装置与控制电路电连接。
本发明所述管路(管道) 既包括流体供应系统或设备的管路或管道, 也包括回收利用装置本身的管 路或管道。本发明所述电连接包括有线方式的电连接和无线方式的电连接。本发明所述流体输送装置指 用于将流体抽出或压入的设备, 最常用的有液体泵 (包括离心泵、 往复泵、 柱塞泵等多种类型)、 气体泵 (如真空泵、 通风机等多种类型)等。
本发明所述流体性能传感元件用于感知流体的性能是否符合要求,例如测定流体温度的半导体传感 器、 热电偶、 温控开关等, 测定液体 PH值或气体饱和度的传感器, 测定气体或流动粉末温度的传感器 等, 设置在所述流体供应系统或设备出口端的管路中或管路外。本发明所述流体状况传感元件用于感知 流体的流动或有无等状况, 包括感知流体是否流动的部分和感知流体是否被抽空的部分, 即流体流动传 感元件部分和流体抽空传感元件部分, 例如通过测定液体在静止、 流动或被抽空时压力、 流量、 电导、 电阻等的不同来确定液体状况的流动传感器、 流量传感器、 压力或压差传感器、 流动开关、 水纹波动开 关、 电导传感器、 电阻探头等, 通过测定气体在静止、 流动或被抽空吋压力、 流量等的不同来确定气体 状况的流动传感器、 流量传感器、 压力或压差传感器等。 感知流体是否流动和是否已被抽空的传感元件 部分可以是两个独立的元件, 也可以是一个合用的元件, 可设置在整个流体通路中。
上述传感元件除可安装在流体管道中直接接触并测定流体的性能和状况之外,还可以釆用遥测技术 安装在流体管道外的适当位置。一种优选的方式是将传感元件安装在回收利用装置的管道之中, 例如进 管和 /或出管中或进管和出管之间, 与回收利用装置组成一个单独的整体。 这样不但便于制造和销售, 而且可以将一体式的回收利用装置直接安装在流体供应系统或设备的流体进口或出口的管路中,不需要 改变原有的流体供应系统或设备及其到用户端的管路。
上述传感元件的作用是:感知流体性能和状况的变化,并通过电路控制所述回收利用装置的工作 (包 括启动、 停止或工作状态的改变) ,也就是说: 根据感知流体状况的传感元件测得的管道中的流体的流 动信号、 流体性能传感元件测得的管道中的流体性能是否符合要求的信号和 /或流体状况传感元件测得 的管道中的流体已被抽空的信号来确定或控制流体输送装置的工作状态和流体的流动方向,从而使回收 利用装置能够自动地正常供应符合要求的流体或将不符合要求的存留流体抽出之后正常供应符合要求 的流体。 因此, 对于自动控制型的流体供应系统或设备而言, 也可以利用其本身所具有的相同类型的传 感元件得到的信号控制回收利用装置的工作。
具体来说, 当管道中的流体开始流动或处于流动状态、 同时管道中的流体性能不符合要求时, 回收 利用装置开始进行回收; 在管道中的流体已被抽空时, 回收利用装置的工作状态改变, 例如变为回收另 一方向管道中的的流体或停止回收流体; 而当管道中的流体性能符合要求或流体停止流动时, 回收利用 装置停止工作,恢复常态。 本发明的一种技术方案是:该回收利用装置用带流体流向选择控制电控阀或电动阀的三通结构使所 述进管、 出管和所述流体输送装置相通, 所述三通结构的三个方向分别通向进管、 出管和连接所述流体 输送装置的抽出管, 所述电控闽或电动陶与控制电路电连接。
该技术方案可以将所述流体输送装置通过导出管连通至一个流体贮存容器,对抽出的流体另行加以 利用。
其进一歩的技术方案是:所述导出管通过支管连通至所述流体供应系统或设备的流体进口端的管道 中, 所述支管上设有支管电动阀, 所述导出管靠近流体贮存容器的一端设有导出电动阀, 所述电动阀与 控制电路电连接。
其进一步的技术方案还可以是:将该流体贮存容器通过循环管和一流体输送装置连通至所述流体供 应系统或设备的流体进口端的管道中。所述流体贮存容器中还设有感知流体有无或多少等状况的传感元 件, 所述传感元件和流体输送装置与控制电路电连接。最好将所述流体贮存容器通过循环管与所述回收 利用装置的抽出管相通, 所述导出管通过支管与所述流体供应系统或设备的流体进口端的管道相通, 所 述循环管中设有循环电动阀, 所述支管上设有支管电动阀, 所述导出管靠近流体贮存容器的一端设有导 出电动阀, 所述流体贮存容器中还设有感知流体有无或多少等状况的传感元件, 该传感元件和所述电动 阀与控制电路电连接。
其进一步优选的技术方案还可以是: 所述流体输送装置为双向流体输送装置, 所述回收利用装置安 装在所述流体供应系统或设备的流体进口端的管路中, 所述导出管连通至流体贮存容器的适当部位, 所 述流体贮存容器中设有感知流体有无或多少等状况的传感元件, 所述传感元件与控制电路电连接。
将流体压回流体供应系统或设备的管道中的另一种优选技术方案是: 不用流体贮存容器, 将所述流 体输送装置通过导出管直接连通至所述流体供应系统或设备的流体进口端的管道中,从而将流体输送装 置从出管和 /或进管抽出的流体直接压入所述流体供应系统或设备的流体进口端的管道中。
本发明的另一种更好的技术方案是: 将所述流体输送装置直接串接在所述进管和出管之间, 用流体 输送装置将所述流体供应系统或设备的管道中存留的流体通过出管和进管反向压回流体供应系统或设 备的流体输入管道中。
本发明还可以在所述回收利用装置的电路上安装一个一次性信号按键或 /和一个持续性信号开关, 该按键或 /和开关给出的电信号用于将所述感知流体性能的传感元件输出的电信号即刻转变为不符合要 求的电信号。
本发明所述的回收利用装置优选安装在流体供应系统或设备的附近,特别是靠近所述流体供应系统 或设备的流体进口或出口的管路中。 所述流体性能传感元件也可安装在每个用户端阀门的附近。
本发明还包括含上述回收利用装置的流体供应系统或设备, 例如以燃气热水器、 电热水器、 太阳能 热水器或锅炉为流体供应源的流体供应系统或设备。
本发明的使用方法包括以下步骤: 开通流体通路; 所述回收利用装置自动根据所述传感元件测得的 信号进行工作: 供应符合要求的流体, 或回收不符合要求的流体以供再利用后供应符合要求的流体。
具体的一种使用方法包括以下步骤:将所述回收利用装置安装在所述流体供应系统或设备的流体出 口端的管路中; 开通流体通路; 所述回收利用装置自动根据所述传感元件测得的信号进行工作: 供应符 合要求的流体,或在分别回收所述回收利用装置到用户端管路中的流体和回收利用装置到流体供应系统 或设备内部管路中的流体以供再利用之后供应符合要求的流体。
具体的另一种使用方法包括以下歩骤:将所述回收利用装置安装在所述流体供应系统或设备的流体 进口端的管路中; 开通流体通路; 所述回收利用装置自动根据传感元件测得的信号进行工作: 供应符合 要求的流体,或在将回收利用装置到流体供应系统或设备内部再到用户端管路中的存留流体回收以供再 利用之后供应符合要求的流体。
当所述流体为液体时, 可以在开启所述液体的供应系统或设备之前或之后打开用户端的阀门。 当所述流体为气体时,最好在回收不符合要求的气体之后打开用户端的阀门,供应符合要求的气体。 在回收利用装置的使用方法中,还可以包括在新打开用户端的阀门之前先启动上述一次性信号按键 或持续性信号开关的步骤。
为了便于本领域的技术人员理解本发明的内容, 下面以液体为例来进一步说明本发明的技术方案, 但是本领域的技术人员完全可以将其应用到气体、 可流动的粉末等其他流体中。
该回收利用装置串接在所述液体供应系统或设备的管路中,必要吋回收利用装置还包括控制液体流 向的电动阀。为了防止回收利用装置出现不正确的动作, 最好在回收利用装置的进管管路中和出管管路 中各安装一个确定液体是否在流动的传感元件。感知液体性能的传感元件的一种优选安装方式是将其安 装在用户端附近, 这样可以减小或消除由于管道前后液体性能的差别而带来的影响。
该回收利用装置的一种具体形式包括一个带液体流向选择控制电动阀的三通结构,所述三通结构的 三个方向分别通向进管、 出管和与液体输送装置例如液体泵连接的抽出管, 所述电动阀与控制其动作的 控制电路电连接。 当开启液体供应系统或设备的相关阀门供应液体之时, 所述液体的流向根据液体是否 符合要求由控制电路通过改变所述三通结构的通断方向及液体泵的启停来进行改变, 以便将不符合要求 的液体进行回收,然后正常供应符合要求的液体。上述用于控制液体流向的三通结构可选用电动三通阀、 电动换向阀等可换向阀门或三个方向装有电动二通阀的三通管。对于釆用三通管的该装置而言, 可以直 接将全部或部分传感元件安装在三通管中, 例如在三通管上打洞, 将传感元件插入后密封, 或使用四通 管代替三通管, 在其中一通中插入传感元件后密封。
对于一般的液体供应系统或设备(包括具有贮存已处理好的液体的贮液装置的系统或设备如常见的 太阳能热水器、 锅炉和不具有贮存己处理好的液体的贮液装置的系统或设备如常见的即热式燃气热水 器)而言, 可以将该回收利用装置装于液体供应系统或设备的液体出口端的管路中, 此吋该装置的进管 与液体供应系统或设备的出液口相通, 即进管与所述液体供应系统或设备的液体进入方向的管道连接, 该装置的出管与液体供应系统或设备的用户端管路相通,即出管与所述液体供应系统或设备的液体流出 方向的管道连接。在开启液体供应系统或设备的相关阀门之后, 感知液体状况的传感元件测得液体开始 流动, 回收利用装置进入工作状态; 如果此时感知液体性能的传感元件测得管道中的液体符合要求, 则 该回收利用装置保持正常状态, 即进管与出管相通、 抽出管关闭、 液体泵不启动, 液体供应系统或设备 正常供应符合要求的液体;如果感知液体性能的传感元件测得的信号与事先设定的合格值进行比较后确 定液体的性能不符合要求吋, 即通过电路控制电动阀和液体泵先行回收不符合要求的液体, 再供应符合 要求的液体。 此时可以先回收该回收利用装置到液体供应系统或设备内部的管道中不符合要求的液体, 再回收该回收利用装置到用户端的管道中不符合要求的液体,这种方式的一个优点是液体供应系统或设 备可以持续工作一段时间, 不会一启动又马上停止。优选的方式是: 通过控制三通结构的电动阀使回收 利用装置的出管与抽出管相通、 进管关闭、 液体泵启动, 将回收利用装置到用户端管道中的液体抽出供 重新利用, 并在感知液体状况的传感元件测得管道中的液体被抽空后, 通过控制回收利用装置的电动阀 使其进管与抽出管相通、 出管关闭、 液体泵继续工作, 将回收利用装置到液体供应系统或设备内部管道 中不符合要求的液体抽出供重新利用; 此时液体供应系统或设备幵始流出经过处理的液体, 当感知液体 性能的传感元件测得管道中的液体已经符合要求时, 控制电路即可使回收利用装置的进管与出管相通、 抽出管关闭、 液体泵停止, 液体供应系统或设备即可正常供应符合要求的液体。 当关闭用户端阀门或液 体供应系统或设备的进液端或出液端的阀门吋,感知液体状况的传感元件因测得液体停止流动而使该回 收利用装置退出工作状态, 各个电动阔门及液体泵恢复常态。如果将该回收利用装置装于用户端阀门的 附近, 则可以一次抽出用户端到液体供应系统或设备内部的管道中的存留液体。
对于没有贮液装置而是对管道中的液体即刻进行处理的液体供应系统或设备(如家用燃气热水器或 即热式电热水器)而言, 该回收利用装置还可以装于液体供应系统或设备的进液口管路中, 此时该装置 的进管与液体供应系统或设备的原液进液管相通, 出管与液体供应系统或设备的进液口相通。例如对于 即热式或快速式的燃气热水器来说, 该装置可装于燃气热水器的冷水进口管路中, 此时该装置的进管与 燃气热水器的冷水进水管连接, 出管与燃气热水器的冷水进口连接, 而所述热水器的热水出口与通向用 户端的管道直接相连。在开启热水器的相关阀门之后, 感知液体状况的传感元件测得液体开始流动, 回 收利用装置进入工作状态;如果此时感知液体性能的传感元件测得液体供应系统或设备的出口端的管道 中的液体符合要求, 该回收利用装置保持正常工作状态, 即进管与出管相通、 抽出管关闭、 液体泵不启 动, 液体供应系统或设备正常供应符合要求的液体; 当感知液体性能的传感元件测得液体的性能不符合 要求吋, 传感元件的信号即可通过控制回收利用装置的电动阀使其出管与抽出管相通、 进管关闭、 水泵 启动, 将燃气热水器到用户端的管道中的存留水连同燃气热水器内部的存留水一起抽出供重新利用; 当 感知液体状况的传感元件测得存留水已被抽空后,即通过控制回收利用装置的电动阀使其出管与进管相 通、 抽出管关闭、 水泵停止, 燃气热水器即可正常使用, 冷水通过该回收利用装置的进管、 出管进入燃 气热水器加温, 燃气热水器出口放出的水即是热水, 然后通过管路从用户端流出。 当关闭用户端阀门或 者液体供应系统或设备的进液端或出液端的阀门时,感知液体状况的传感元件因测得液体停止流动而使 该回收利用装置退出工作状态, 各个电动阀门及液体泵恢复常态。 在这种安装方式下, 回收利用装置的 出管在工作时一直为开通状态, 因此出管方向的二通阀可省去(对于采用三通管及二通阀的回收利用装 置来说)。
上述的 "感知液体状况的传感元件测得液体开始流动, 回收利用装置进入工作状态", 也可以理解 为只有在感知液体状况的传感元件测得液体开始流动时, 回收利用装置从 "待机"状态进入 "工作"状 态, 感知液体性能等传感元件测得的信号才能通过控制电路开、 关电动闽或启动、 停止液体泵; 在未开 启用户端和供应系统或设备的阀门、 液体没有流动时, 回收利用装置不会工作; 液体开始流动是回收利 用装置进入工作状态的前提条件。这样可以防止回收利用装置的误启动(例如在未使用供应系统或设备 时错误启动液体泵)。 一种具体的实施方法是: 将感知液体流动状况的传感器控制的开关、 液体流动开 关或水紋波动开关等串接在回收利用装置的电源电路中, 用液体的流动信号来该使回收利用装置得电, 从而进入工作状态。实际上, 回收利用装置只有在液体流动和液体不符合要求这两项条件都成立时才进 行液体的回收利用, 否则各电动阀、 液体泵处于常态, 不进行液体的回收利用。 因此还可以采用的一种 具体的实施方法是: 将感知液体性能的传感元件控制的电路开关和 /或感知液体流动传感元件控制的电 路开关串接在回收利用装置的电源电路中。
另外, 也可以将控制电路设计为只要液体幵始流动并且液体性能不符合要求, 就可触发回收利用装 置开始工作, 在回收流体后正常供应符合要求的流体, 而无须要求液体流动传感元件测得管道中的液体 一直处于流动状态。但在非正常操作时(例如在打开用户端的阀门、 回收利用装置刚开始工作时又马上 关闭用户端的阀门), 这种回收利用装置的工作有可能会出错。
回收的液体可用于物品的洗涤或另作他用。对于有液体贮存容器的液体供应系统或设备如太阳能热 水器、 电热水器、 锅炉等, 也可将回收的液体直接压入贮存容器中处理后再次利用。
进一歩的技术方案是将所述液体输送装置通过导出管连通至液体贮存容器例如贮液箱。该贮液箱可 以装有液体利用出口及阀门, 用于贮存回收的液体。这样, 回收液体的利用不一定与所述回收利用装置 的使用同时进行。
更进一步的技术方案是:使所述导出管通过支管与所述液体供应系统或设备的原液进口端的管道相 通, 所述支管上设有支管电动阀, 所述导出管靠近液体贮存容器的一端设有导出电动阀, 所述电动阀与 控制电路电连接,在抽出液体供应系统或设备中存留的液体时将其送入液体供应系统或设备的液体进口 的管道中。对于安装在液体出口端的回收利用装置而言, 在抽出回收利用装置到供应系统或设备内部的 液体吋, 可以直接将其打回液体供应系统或设备内部进行循环利用。 相对于以下各技术方案来说, 这后 一技术方案所需的零部件较少, 对泵的工作压力要求不高, 也不存在将回收液体打回原液进液管时对进 液管中液体的品质、 压力等造成干扰的问题。
利用回收液体的另一个技术方案是将所述抽出的回收液体包括回收到液体贮存容器中的液体均送 入所述液体供应系统或设备的原液进液管中, 使其经过液体供应系统或设备的处理后符合要求。 为此, 可将贮液箱的液体通过循环管和一个液体泵连通至所述液体供应系统或设备的液体进口端的管道中,所 述贮液箱中还设有感知其中有无液体或液体多少的传感元件, 所述传感元件与控制电路电连接, 通过控 制电路控制所述液体泵和相关电动阀的开关。 这样, 当传感元件感知到贮液箱或循环管中有液体吋, 即 通过控制电路启动液体泵, 将贮液箱中的回收液体压入所述液体供应系统或设备的进液口管路中; 当传 感元件感知到贮液箱或循环管中已没有液体吋, 即关闭液体泵, 停止将回收液体压入所述液体供应系统 或设备的进液口管路的程序。 所述循环管上最好设有阀门, 并在启动该液体泵时同时打开。
将所述抽出的回收液体送入所述液体供应系统或设备的原液进液管中的更好的技术方案是将所述 贮液箱通过循环管连接至该回收利用装置的抽出管上,与抽出管相连的液体泵通过导出管及支管与所述 液体供应系统或设备的未经处理的原液的进液管相通, 在所述循环管、支管上及所述导出管靠近贮液箱 的一端各设有电动阀, 所述电动阀与控制电路电连接, 所述液体贮存容器中还设有测定其液体状况的元 件。 这样可以合用一个液体泵。
该回收利用装置可以安装在液体供应系统或设备的出液口的管路中, 具体的控制方式有以下两种: 其一,将回收利用装置到液体供应系统或设备内部管道中不符合要求的液体直接压入液体供应系统 或设备中进行循环利用, 即在回收利用装置到用户端管道中的液体已被抽空并进入贮液箱中、控制电路 使回收利用装置的进管与抽出管相通、 出管关闭、液体泵继续工作抽出回收利用装置到液体供应系统或 设备内部管道中不符合要求的液体之吋,即开启支管上的电动阀、关闭导出管靠近贮液箱一端的电动阀, 将回收利用装置到液体供应系统或设备内部管道中不符合要求的液体直接压入所述液体供应系统或设 备中进行循环利用;然后在传感元件测得回收利用装置的管道中的液体已经符合要求并通过控制电路使 回收利用装置的进管与出管相通、抽出管关闭、液体供应系统或设备幵始正常供应符合要求的液体之时 或之后, 开启循环管中的电动阀, 并使支管上的电动阀保持开启、 导出管靠近贮液箱一端的电动阀保持 关闭、 液体泵保持运行, 将贮液箱中的回收液体压入所述液体供应系统或设备中, 直至测定贮液箱中的 液体状况传感元件感知到贮液箱中已没有液体时, 再通过控制电路关闭循环管上的阀门和支管上的陶 门、 开启导出管靠近贮液箱一端的阀门、 关闭液体泵, 向液体供应系统或设备中压入回收液体的程序停 止, 该装置恢复常态。
其二, 与上述方式不同的是, 此方式是在用户端管道中的液体和液体供应系统或设备内部管道中的 不符合要求的液体都已被抽到贮液箱中之后再启动将回收液体压入所述液体供应系统或设备进液管的 程序。
相比较而言, 在方式二的程序中, 液体供应系统或设备内部的不符合要求的液体的抽出和贮液箱中 的回收液体再压入所述液体供应系统或设备进液管中的两个歩骤先后进行,贮液箱需容纳从用户端管道 中回收的液体和从液体供应系统或设备内部管道中回收的液体; 在方式一中, 液体供应系统或设备内部 的不符合要求的液体的抽出和将其再压入所述液体供应系统或设备中的两个步骤同时进行,贮液箱只需 容纳从用户端管道中回收的液体, 贮液箱的容积可以较小。 上述自动回收利用装置可以单独制造并方便地安装在液体供应系统或设备的出液管管路中,例如拆 开供应系统或设备的出液口与通向用户端的管道的连接部位, 将回收利用装置直接安装在中间, 即: 将 回收利用装置的进管和出管分别与供应系统或设备的出液口和通向用户端的管道相连,同吋拆开液体供 应系统或设备的原液进液口与进液管道的连接部位,将回收利用装置的支管通过一个三通管与液体供应 系统或设备的进液口和带进液阀门的进液管分别相连,并最好在液体供应系统或设备的进液阀门方向安 装一单向阀。
当上述合用液体泵的自动回收利用装置在用于没有贮液装置而是对管道中的液体即刻进行处理的 液体供应系统或设备时,也可以用前述将其安装在液体供应系统或设备的进液口的管路中的方式进行安 装。其控制方式具体来说是: 在感知液体状况的传感元件测得液体供应系统或设备内部连同用户端管道 中的存留液体已被抽空后, 通过控制电路使回收利用装置的进管与出管相通、 抽出管关闭, 液体供应系 统或设备开始正常供应符合要求的液体; 同时, 控制电路根据上述传感元件的信号或 /和贮液箱中传感 元件的信号开启支管上的阀门和循环管中的阀门、 关闭导出管靠近贮液箱一端的阀门, 液体泵启动, 将 贮液箱中的回收液体压入所述液体供应系统或设备中,直至贮液箱中所设置的传感元件感知到贮液箱中 已没有液体时为止, 这时, 该回收利用装置恢复常态。
上述自动回收利用装置也可以方便地进行安装,例如拆开供应系统或设备的进液口与进液管道的连 接部位, 将回收利用装置直接安装在中间, gp : 将回收利用装置的出管与液体供应系统或设备的进液口 相连, 将回收利用装置的进管通过一个三通管与供应系统或设备的进液管道和回收利用装置的支管相 连。
更优选的方案是使用双向液体泵即既能正向又能反向输送液体的泵,将与液体泵相连的导出管直接 通到贮液箱的下部, 取消将贮液箱中的回收液体压入所述液体供应系统或设备中所需要的循环管、支管 及相应的阀门。 其控制电路既控制通过三通结构的液体流向, 又控制双向液体泵的正反向启动和停止。 该回收利用装置安装在没有贮液装置而是对管道中的液体即刻进行处理的液体供应系统或设备的进液 口的管路中。在液体供应系统或设备通过该回收利用装置正常供应符合要求的液体吋, 如果贮液箱中有 已回收的液体时, 反向启动该液体泵, 即可将贮液箱的液体压入所述液体供应系统或设备中再次利用。
其具体的控制方式是:如果感知液体的性能的传感元件测得管道中的液体不符合要求需要回收利用 时,传感元件的信号即通过控制电路使回收利用装置的出管与抽出管相通、进管关闭、液体泵正向启动, 将液体供应系统或设备内部连同用户端管道中的存留液体抽出并输送至贮液箱中;在感知液体状况的传 感元件测得存留液体被抽空后的适当时候, 使液体泵反向启动, 将贮液箱中的回收液体压入所述液体供 应系统或设备的进液管道中, 直至贮液箱中设置的传感元件感知到贮液箱中已没有液体时, 再通过控制 电路关闭抽出管和液体泵,停止将回收液体压入液体供应系统或设备中的程序,回收利用装置恢复常态。 由于减少了零部件, 这种技术方案的回收利用装置可以更容易地安装在液体供应系统或设备的内部。
由于上述各技术方案有贮液箱作为回收液体的缓冲容器,可以在供应系统或设备正常工作时将回收 的液体打回供应系统或设备内, 因而对供应系统或设备的进液管路的影响较小, 并且还可以在进液管路 加上单向阀以完全消除对供应系统或设备进液管路的影响。
作为上述回收利用装置部件的替代方式, 可以将循环管与抽出管连接处的三通管、 导出管与支管连 接处的三通管、支管与所述液体供应系统或设备的进液管道连接处的三通管中的一个或几个换成电动三 通阀或电动换向陶, 同时取消与该一个或几个三通管相关的电动二通阀(例如, 如果取消了导出管与支 管连接处的三通管, 即同吋取消支管上的和所述导出管靠近贮液箱的一端上的电动二通陶), 由控制电 路根据传感元件的信号控制电动三通阀或电动换向阀的开通方向, 达到同样的控制目的。
另一种简易的技术方案是: 省去贮液箱、 循环管、 支管及相应的阀门, 直接将导出管连通至所述液 体供应系统或设备的液体进口的管道或管路中,这样同样可以将抽出的回收液体送入所述液体供应系统 或设备的原液进液管中, 从而达回收利用的目的。 为了防止进液管道中的液体倒流入液体泵中, 最好在 液体泵到进液管道之间加一单向陶。这一技术方案的回收利用装置同样可以安装在液体供应系统或设备 的进液口或出液口的管路中。
前述利用液体泵将回收液体直接压入所述液体供应系统或设备的进液管道中的儿种自动回收利用 装置所使用液体泵的输出泵压应大于液体供应系统或设备进液管道中的压力。为了降低液体泵的所需输 出泵压,可以对控制程序进行改进,例如先将回收的液体送入所述液体供应系统或设备的原液进液口中, 再开启原液进液管方向的电动阀, 或对管道或阀门进行适当改进, 例如在进液管方向增加电动阀或改变 支管的路径, 使得在原液进液管方向(即在将回收的液体送入所述液体供应系统或设备的管道与液体供 应系统或设备的进液管道的连通处到供应系统或设备的进液阀门之间〕有一受控制器控制的电动阀, 在 将回收的液体送入所述液体供应系统或设备之中时关闭该电动阀,使得回收的液体在送入原液进液口时 与原液进液管隔离。
还有一种更简易的技术方案是: 取消带液体流向选择控制阀门的三通结构, 将液体泵的两端直接与 所述进管和出管相通, 即所述液体泵直接串接在所述进管和出管之间, 且液体泵工作时的液体流向与管 道中原来的液体流向相反。这种简便方式的回收利用装置可以串接安装在液体供应系统或设备出液口的 管路中, 但不足的是不能回收液体供应系统或设备内部的液体。对于没有贮液装置而是对管道中的液体 即刻进行处理的液体供应系统或设备而言, 这种回收利用装置最好串接安装在其进液口的管路中。 当开 启相关陶门、感知液体状况的传感元件测得液体开始流动时, 如果感知液体性能的传感元件测得液体供 应系统或设备的出口端的管道中的液体符合要求, 该液体泵不启动, 液体供应系统或设备正常供应符合 要求的液体; 如果感知液体性能的传感元件测得管道中的液体不符合要求需要回收利用时, 传感元件的 信号即可通过控制电路使液体泵启动,将回收利用装置到液体供应系统或设备内部管路中再到用户端管 路中的液体抽出并压入进液管道中, 并在感知液体状况的传感元件测得液体被抽空后, 通过控制电路使 液体泵停止, 液体供应系统或设备即可正常供应符合要求的液体。该技术方案的液体泵的工作压力应大 于进液管道中的液体压力, 而且在液体泵不启动吋可以让管道中的液体正常通过, 而这是现有技术已经 解决了的问题,如市售的赛科拉公司的热水循环系统中或万家乐公司带循环系统的热水器中所使用的液 体泵。
前述的所有回收利用装置均可以方便地用于液体供应系统或设备的管道中不符合要求液体的回收, 而且不须对整个供应系统或设备的管路进行改造。 例如, 将其安装在靠近燃气热水器、 电热水器、 太阳 能热水器或锅炉的进、 出水管道的接口处, 而无须改动整个热水系统的其他管道。 当每次打开用户端的 阀门准备使用热水时, 该装置即可自动、 快速地回收管道中的存留冷水, 并很快流出适合洗浴的热水, 这样不但减少了水资源的浪费, 还可以使洗浴过程更加舒适、 快捷。 甚至还可以将该装置集成安装在太 阳能热水器、 电热水器或燃气热水器的内部, 制成与热水器成一体的、 具有冷水自动回收利用功能的热 水器, 这样, 制成的整套设备的体积更小, 安装使用更为方便。
在常见的液体供应系统或设备例如用锅炉供水的浴室或家用热水器中,常常有多个用户端及相应的 管路。在使用本发明时, 当开启热水供应系统或设备并由在先的用户打开阀门而启动了本发明的回收利 用装置之后, 通向该用户端的管道中、 回收利用装置中及热水供应系统或设备内部的冷水在回收后已经 变成了符合要求的热水, 但另一个用户端的分支管道中还存在不符合要求的液体即冷水。如果另一个用 户是在在先的用户正在使用吋或停用后较短的时间内开启阀门, 回收利用装置可能不会再次进行回收, 这样就会造成另一个用户出口刚流出的液体不符合要求。
为了解决这一问题, 可以采用下述方法进行操作: 在使用前先打开所有用户端的阀门, 然后开启热 水供应系统或设备的阀门, 此时, 由于管道中的的存留液体不符合要求需要回收利用, 回收利用装置即 可将多个用户端管道中的存留液体和热水供应系统或设备内部管道中不符合要求的存留液体全部抽出 供重新利用; 当管道中的液体已经符合要求吋, 热水供应系统或设备即可正常供应符合要求的热水, 多 个用户端管路中都可直接流出热水。
另一种解决方案是: 在所述控制器的电路上安装一个一次性信号按键, 该按键可通过电路在一定的 时间内 (例如在 5〜10分钟之内)给出一个单次性电信号(例如由电阻电容电路给出的延吋电压信号), 当新开启一个用户端阀门吋, 传感元件测得的因液体开始流动 (开启一个阀门时) 或加快流动 (在已有 阀门幵启, 再开启另一个阀门吋)而压力变小或流速增大等信号与上述电信号相结合, 可以由控制电路 设定的程序将温度传感元件所输出的信号即刻转变为温度不符合要求的信号(例如由上述电压信号将温 度传感元件所输出的信号翻转), 从而一次性地再次启动回收利用装置。 这样, 在在先的用户端的阀门 刚关闭不久的情况下, 先按一下该按键、 再新开启另一个用户端的阀门, 仍然可以再次启动回收装置, 将后打开的用户的管路中的水进行回收, 并在回收完成之后流出符合温度要求的热水, 以解决在先的用 户停用后较短的时间内打开另一个用户端的阀门时热水器不能回收其管道中的冷水的问题;如果在先的 用户正在使用热水器, 当先按一下该按键、 再新开启另一个用户端的阀门时, 液体的流速加快, 传感元 件测得的因液体加快流动而压力变小或流速增大等脉冲信号与上述电信号结合在一起,将温度传感元件 所输出的信号即刻转变为温度不符合要求的信号, 一次性地再次启动回收装置, 在在先的用户还在使用 的情况下强行回收已打开的在先和在后用户管路中的水, 并在回收完成之后流出符合温度要求的热水, 这样,就解决了在在先的用户还在使用时打开另一个用户端的阀门后热水器不能回收该用户端管道中的 冷水的问题, 只是对在先用户的使用有短暂的影响。
除上述一次性信号按键之外, 还可单独或同时在所述控制器的电路上安装一个持续性信号开关, 该 开关可通过电路一直给出一个电信号 (例如电压信号), 该信号与每次开启用户端闽门时传感元件测得 的因液体开始流动 (开启一个阀门时) 或加快流动 (在已经有阖门开启, 再开启另一个阀门时)而压力 变小或流速增大的脉冲信号相结合,可以由控制电路设定的程序将温度传感元件所输出的信号即刻转变 为水温不符合要求的信号。 这样, 当打开这个开关之后, 用户在每一次新开启阔门时都会使回收利用装 置启动一次, 将全部己打开的用户管路中的水进行回收, 并在回收完成之后流出温度符合要求的热水。 这样也解决了后面的用户在前面的用户使用热水器时或在前面的用户停用后较短的时间内使用热水器 时不能回收管道中的冷水的问题, 只是每次都会对在先用户的使用有短暂的影响。
还有一种优选的解决方案是:将温度传感元件安装在每个用户端阀门的附近并将其与控制电路电连 接, 这样, 当开启其中任一个用户端的阀门时, 如果出水的温度不符合要求, 即可启动回收装置, 将所 打开的用户的管路中的水进行回收, 并在回收完成之后流出符合温度要求的热水。
如果将上述用于热水供应系统或设备的回收利用装置中的温度传感器分别换成相应的氧饱和度传 感器、 (:02饱和度传感器、 pH传感器或低温传感器等等, 即可分别用于对液体进行增氧、 加 C02、 调 pH 或制冷后用于生产或生活的液体供应系统或设备。
回收利用装置的控制电路可加上其他相应部件组成控制器,控制器上还可以带有设定液体性能的合 格限度或限度范围的部件及相应的显示部件。使用传感元件并通过控制电路控制电动阀、液体泵是现有 的成熟技术, 机电领域的普通技术人员完全能够根据实际需要确定具体使用的传感元件、 电动阀、 控制 器及其电路(如使用可编程控制器)而不需要付出创造性的劳动,例如采用 CN100363692C、 CN1959287A, CN1693810A或 CN2699185Y的传感器、 电动阀及控制器。
前面所述的液体供应系统或设备的各种技术方案均可以应用于气体、流动粉末等其他流体供应系统 或设备中, 并由本领域的普通技术人员根据所了解的流体的不同情况进行必要的变通处理。例如对于气 体来说, 由于其易于扩散和压缩且易于与其他流体混杂, 因此其贮存容器不同于液体采用的与大气相通 的贮液箱, 而应是封闭的容器; 从贮存容器中抽出气体的管道的管道口只要与贮存容器相通即可, 不一 定要像液体那样置于容器的底部附近;可以不一定要像液体那样通过流体的流动来使回收利用装置进入 工作状态; 在使用回收利用装置时, 先不开启用户端的阀门, 而是在开启气体供应系统或设备之前或之 后即启动回收利用装置的相应阀门和气体泵, 将不符合要求的气体进行回收, 直至气体供应系统或设备 所供应的气体达到要求吋才打开用户端的阀门, 正常供应符合要求的气体。
附图说明
下面结合附图和具体实施方式对本发明作进一步的详细说明。
附图 1为采用装有电控二通阀的三通管的一种回收利用装置的示意图。
附图 2为采用电控三通阀或换向阀的一种回收利用装置的示意图。
附图 3 为在流体供应系统或设备的流体出口端的管路中安装了回收利用装置的流体供应系统或设 备特别是热水器的示意图。
附图 4 为在流体供应系统或设备的流体进口端的管路中安装了回收利用装置的流体供应系统或设 备特别是热水器的示意图。
附图 5 为在流体供应系统或设备的流体进口端的管路中安装了使用双向流体泵的回收利用装置的 流体供应系统或设备特别是热水器的示意图。
附图 6 为在流体供应系统或设备的流体出口端的管路中安装了一种简易回收利用装置的流体供应 系统或设备特别是热水器的示意图。
附图 7 为在流体供应系统或设备的流体进口端的管路中安装了另一种更简易的回收利用装置的流 体供应系统或设备特别是热水器的示意图。
附图 1、 2中的两条平行的线条表示管道, 圆圈中的箭头表示流体输送装置工作时的流体流向。 附 图 3、 4、 5、 6、 7中的粗黑线条表示管道, 粗黑箭头表示流体流向, 圆圈中的箭头表示流体输送装置工 作时的流体流向。 附图 1、 7中的短划线箭头表示传感器与控制器的电连接, 长划线箭头表示控制器与 流体输送装置、 电控阀的电连接; 附图 3、 4、 5中的细虚线箭头表示流体回收时的流向; 附图 3中的中 粗虚线表示可加装的阀门; 附图 4中的粗虚线箭头表示支管的另一连接方式。 为简洁起见, 附图 3、 4、 5、 6、 7中未画出热水器用户端通常存在的与热水管并行的冷水管及用于调节冷、 热水混合比例的共用 阀门或其他流体供应系统或设备中的类似部件。
具体实施方式
以下通过实施例来进一步阐述本发明, 但不应将此理解为本发明的应用仅限于以下的实施例, 凡是 基于本发明的上述原则所实现的技术方案均属于本发明要求保护的范围。
实施例 1 : 使用装有电动二通阀的三通管来控制髙温 (或低温)液体流向的回收利用装置。
如图 1所示, 该回收利用装置包括带三通管和电动二通阀的三通结构 1, 三通结构 1连接的进管 2 与所述高温(或低温)液体供应系统或设备的进液方向的管道相通, 出管 3与所述液体供应系统或设备 的出液方向的管道相通, 抽出管 4连接液体泵 5和导出管 9 (导出管 9也可取消), 三通结构 1上分别 设有进管电动二通阀 6、 出管电动二通阔 7、 抽出管电动二通阀 8, 在位置 10处安装一温度传感器和一 压力传感器(图中未绘出), 控制器 30和传感器、 液体泵 5之间为有线电连接, 传感器的信号通过控制 器 30的电路控制电动二通阀 6、 7、 8和液体泵 5的动作。 当管道中的压力为中等压力或负压时回收利 用装置处于工作状态。
常见的安装方法是将该装置装于靠近所述液体供应系统或设备的出液口管路中,此吋该装置的进管 2与液体供应系统或设备的己经经过处理的液体的出液口连接, 该装置的出管 3与液体供应系统或设备 的用户端相通。 当管道中的液体未流动时, 压力为零(液体供应系统或设备的阀门未打开)或高压(液 体供应系统或设备的阀门己打开而用户端的阀门未打开), 回收利用装置不进入工作状态, 当液体供应 系统或设备的阀门和用户端的闽门均打开, 管道中的液体开始流动时, 压力变为中等压力, 回收利用装 置进入工作状态; 此时如果温度传感器测得管道中的液体符合设定要求时, 通过控制电路使电动阀 6和 7保持打开状态, 电动阀 8保持关闭状态, 符合要求的液体正常通过回收利用装置的进管 2、 电动阀 6、 三通管、 电动阀 7、 出管 3送到用户端; 如果温度传感器测得管道中的液体不符合设定要求时, 通过控 制电路关闭电动阀 6, 打开电动阀 7和电动阀 8 , 同时启动液体泵 5 , 即可将回收利用装置到用户端的 管道中不符合要求的液体通过出管 3、 电动阀 7、 三通管、 电动阀 8、 抽出管 4、 液体泵 5、 导出管 9抽 出, 此时压力为负压; 当回收利用装置到用户端的管道中不符合要求的液体被抽完后, 压力成为接近零 的负压, 压力传感器测得的信号通过控制电路关闭电动阀 7, 打开电动阀 6和电动阀 8, 液体泵 5继续 工作, 将回收利用装置到液体供应系统或设备内部管道中不符合要求的液体通过进管 2、 电动阀 6、 三 通管、 电动阀 8、 抽出管 4、 液体泵 5抽出 (也可依靠液体供应系统或设备内部管道中的压力保持液体 的运动而使液体流出, 不启动液体泵), 新鲜液体同时进入液体供应系统或设备并由后者进行处理; 当 温度传感器测得液体供应系统或设备开始流出符合要求的液体时, 回收利用装置恢复常态, 符合要求的 液体即可通过回收利用装置输送到用户端。 当关闭液体供应系统或设备的阀门或用户端的阀门吋, 液体 停止流动, 压力为零或高压, 回收利用装置退出工作状态。 也可在位置 10处安装一电导传感器专门用 于感知液体被抽完的状态并通过控制电路抽出回收利用装置到液体供应系统或设备内部管道中不符合 要求的液体。
所抽出的液体可弃去或用于物品的洗涤或另作他用,或直接压入有液体贮存容器的液体供应系统或 设备 (如太阳能热水器) 的贮存容器中供再次利用。
如果导出管除通向液体贮存容器之外, 还通过一支管与所述液体供应系统或设备的液体进口端的 管道相通, 所述支管上设有支管电动陶, 所述导出管靠近液体贮存容器的一端设有导出电动阀, 所述电 动阀与控制电路电连接。这样在抽出回收利用装置到用户端的管道中的不符合要求的液体时, 通过导出 电动阀将液体输送到液体贮存容器, 在抽出回收利用装置到液体供应系统或设备内部管道中的液体时, 可以将其通过支管电动阀直接送入液体供应系统或设备的液体进口的管道中,即让液体供应系统或设备 内部管道中的液体进行循环利用, 当温度传感器测得管道中的液体已符合设定要求吋, 回收利用装置恢 复常态, 正常供应符合要求的液体。
实施例 2 : 使用电动三通阀或电动换向阀来控制液体流向的高温 (或低温) 液体的回收利用装置。 见图 2, 其工作原理与实施例 1相同, 只是三通结构 1为电动三通阀或电动换向阀, 由其取代了实 施例 1的装有电动二通晴 6、 7、 8的三通管, 通过电动三通阀或电动换向阀的转动使进管 2、 出管 3、 抽出管 4之中的两个管导通, 另一个管关闭。 在位置 11处安装一温度传感器和一感知液体是否在流动 的压力传感器, 在位置 12处安装感知液体是否在流动的压力传感器和感知液体是否已被抽空的电导传 感器, 当任一压力传感器测得液体在流动吋均可使回收利用装置处于工作状态, 并由温度传感器和 /或 感知液体是否已被抽空的电导传感器测得的电信号来控制电动阔的转动和液体泵的启停。如果控制器的 电路设计为釆用以温度传感器测得的管道中的液体温度不符合要求的信号与压力传感器测得的液体开 始流动的信号一起触发回收利用装置进行回收的控制方式,则压力传感器只需在位置 11或 12处安装一 个即可。
实施例 3 : 自动回收低 C02含量水的回收利用装置。
见图 1, 该回收利用装置通常安装在高∞2含量水供应系统的出水口处, 回收利用装置的进管 2与 所述高 C02含量水供应系统的高∞2含量水的出水口连接, 出管 3与用户端的管道连接, 抽出管 4连接 液体泵 5和导出管 9, 三通结构 1上分别设有常开的进管电磁陶 6、 出管电磁阔 7和常闭的抽出管电磁 阀 8, 通过开、 关电磁阀来控制所述液体的流向。 在三通结构 1的电磁阀 6、 7、 8之间的三通管中即在 位置 10处安装一 C02饱和度传感器 (或 pH传感器)、 一水紋波动开关和一电导传感器 (图中未绘出), 传感器、水紋波动开关和液体泵 5通过有线方式与控制器 30相连, 控制器 30根据预设的控制条件和传 感元件的信号控制电磁阀和液体泵的开、 关, 其中, 水纹波动开关位于该回收利用装置的电源电路中, 当水紋波动开关测得管道中液体开始流动时通过控制器 30使回收利用装置进入工作状态, 02饱和度传 感器 (或 PH传感器) 和电导传感器则分别根据水的 C02饱和度 (或 pH值) 是否符合要求和水是否已被 抽空来控制电磁阔和液体泵的动作。
其具体工作程序为: 开启高 C02含量水供应系统, 开启回收利用装置的电源开关并打开用户端的阀 门, 管道中的水开始流动, 水纹波动开关使回收利用装置进入工作状态; 如果 C02饱和度传感器测得管 道中水的 C02含量不符合要求时, 传感器的信号通过控制器使出管电磁阀 7和抽出管电磁阀 8打开, 液 体泵 5启动, 进管电磁阀 6关闭, 将回收利用装置到用户端的管道中的低 (¾含量水通过出管 3、 出管 电磁阀 7、 三通管、 抽出管电磁阀 8、 抽出管 4、 液体泵 5、 导出管 9抽出以供再利用; 当电导传感器测 得管道中已无液体时 (此吋电导很小), 通过控制器使进管电磁阀 6和抽出管电磁阀 8打开, 液体泵 5 继续工作, 出管电磁阀 7关闭, 将回收利用装置到髙∞2含量水供应系统包括髙 C02含量水供应系统内 部的管道中存留的低 (¾含量水通过进管 2、 进管电磁阀 6、 三通管、 抽出管电磁阀 8、 抽出管 4、 液体 泵 5、 导出管 9抽出以供再利用 (或依靠高 C02含量水供应系统内部管道中的压力保持水的运动而使低 C02含量水流出, 不启动液体泵), 此时高 C02含量水供应系统不断向从设备进液口进入的水中添加 C02, 使其达到所需要的 C02饱和度; 当 02饱和度传感器测得从高 C02含量水供应系统出来的水的 C02含量已 经符合要求时, 通过控制器使电磁阀 6和 7恢复打开状态, 抽出管电磁阀 8恢复关闭状态, 液体泵 5停 止工作, 符合要求的高 (¾含量水即可通过回收利用装置的进管 2、 进管电磁阀 6、三通管、 出管 3和出 管电磁阀 7送到用户端, 放出的水即是高 (¾含量水。
所抽出的低∞2含量水液体可用于物品的洗涤或另作他用, 或直接压入高 C02含量水供应系统的贮 液箱中供添加 C02后再次利用。
对于没有高 C02含量水贮液箱的供应系统而言, 该回收利用装置也可安装在供应系统的进水口管路 中, 即回收利用装置的进管 2与所述高 C02含量水供应系统的进水管连接, 出管 3与高 C02含量水供应 系统的进水口连接, 高 C02含量水的出水口与用户端的管道连接, 只不过其∞2饱和度传感器不是安装 在位置 10处, 而是安装在高∞2含量水供应系统的出液口处, 而且其出管电磁阀 7可省去。其具体工作 程序为: 在开启高 C02含量水供应系统时, 打开回收利用装置的电源开关及用户端的阀门, 管道中的水 开始流动, 水纹波动开关使回收利用装置进入工作状态。 如果 C02饱和度传感器测得供应系统的出液口 的管道中水的 C02含量不符合使用要求时, 传感器的信号通过控制器使抽出管电磁阀 8打开, 液体泵 5 启动, 进管电磁阀 6关闭, 将回收利用装置到用户端包括供应系统内部的管道中的低 C¾含量水通过出 管 3、 三通管、 抽出管电磁阀 8、 抽出管 4、 液体泵 5、 导出管 9抽出以供再利用; 当电导传感器测得管 道中已无液体时 (此时电导很小), 通过控制器使电磁阀 6恢复打开状态, 抽出管电磁阀 8恢复关闭状 态, 液体泵 5停止工作, 原水即可从供应系统的进水管通过回收利用装置的进管 2、 进管电磁阀 6、 三 通管、 出管 3并经高 C02含量水供应系统添加 ( 02后送到用户端, 放出的水即是高 (¾含量水。 如果在运 行过程中水纹波动开关测得液体停止流动时 (如关闭用户端阀门或高 C02含量水供应系统的进水或出水 阀门), 即可使该装置退出工作状态, 并可在测得液体开始流动时使该装置重新进入工作状态。
实施例 4: 自动回收高温粉末供应系统中的低温粉末的回收利用装置。
见图 1, 该回收利用装置安装在高温粉末供应系统的高温粉末出口处, 回收利用装置的进管 2与所 述高温粉末供应系统的高温粉末出口连接, 出管 3与用户端的管道连接, 抽出管 4连接流体泵(如通风 机) 5和导出管 9, 三通结构 1上分别设有进管电磁阀 6、 出管电磁陶 7、 抽出管电磁阀 8, 通过开、 关 电磁陶和泵来控制所述粉末的流向。 在三通结构 1的电磁阀 6、 7、 8之间的三通管中即在位置 10处安 装有温度传感器和流量传感器 (图中未绘出), 传感器通过无线方式与控制器 (图中未绘出) 相连, 控 制器根据传感器的信号控制电磁阀和流体泵的开、 关, 其中, 由流量传感器测得的流动信号控制该回收 利用装置的电源电路的开通。
其具体工作程序为: 开启高温粉末供应系统及回收利用装置的电源开关, 打开用户端的阀门, 管道 中的粉末伴随管道中的空气开始流动, 流量传感器测得的信号启动回收利用装置, 使其进入工作状态。 如果温度传感器测得管道中粉末的温度过低不符合要求时,温度传感器的信号通过控制器使出管电磁阀 7和抽出管电磁陶 8打开, 流体泵 5启动, 进管电磁阀 6关闭, 将回收利用装置到用户端的管道中的低 温粉末通过出管 3、 出管电磁阀 7、 三通管、 抽出管电磁阀 8、 抽出管 4、 流体泵 5、 导出管 9抽出以供 再利用; 当流量传感器测得管道中己无粉末流动、 只有空气流动时, 通过控制器使进管电磁阀 6和抽出 管电磁阀 8打开, 流体泵 5继续工作, 出管电磁阀 7关闭, 将回收利用装置到高温粉末供应系统包括其 内部的管道中存留的低温粉末通过进管 2、 进管电磁阀 6、 三通管、 抽出管电磁阀 8、 抽出管 4、 流体泵 5、 导出管 9抽出以供再利用, 此时高温粉末供应系统不断对从系统进料口进入的粉末进行加温, 使其 达到所需要的温度; 当温度传感器测得从高温粉末供应系统出来的粉末的温度己经符合要求时, 通过控 制器使电磁阀 6和 7恢复打开状态, 电磁阀 8恢复关闭状态, 流体泵 5停止工作, 符合要求的高温粉末 即可通过回收利用装置的进管 2、 进管电磁阀 6、 三通管、 出管 3和出管电磁阀 7送到用户端, 送出的 即是高温粉末。所抽出的低温粉末可直接打入贮存容器中再次使用。 当关闭用户端阀门或高温粉末供应 系统的供应阀门时, 粉末和气体均不再流动, 回收利用装置退出工作状态。
与实施例 3相似的是, 对于自身内部没有贮粉容器的高温粉末供应系统而言, 该回收利用装置也可 安装在供应系统的粉末进口管路中。与安装在出口管路中不同的是: 温度传感器安装在供应系统的粉末 出口管路中且可省去电磁阀 7, 在温度传感器测得管道中粉末的温度过低不符合要求吋, 将回收利用装 置到高温粉末供应系统内部再到用户端的管道中存留的低温粉末全部一次抽出,当流量传感器测得管道 中己无粉末流动时, 再通过控制器使电磁阀 6恢复打开状态, 电磁阀 8恢复关闭状态, 流体泵 5停止工 作, 粉末从高温粉末供应系统的进料口进入并加温, 符合要求的高温粉末即可送到用户端。
实施例 5 : 自动回收温度不符合要求的氦气的回收利用装置。
见图 2。 该回收利用装置安装在靠近加温氦气供应设备的加温氦气出口处, 回收利用装置的进管 2 与所述加温氦气供应设备的加温氦气出口连接, 出管 3与用户端的管道连接, 抽出管 4连接气体泵 5和 导出管 9, 进管 2、 出管 3与抽出管 4连接电动三通阔 1, 其中进管 2与出管 3方向常通。 在进管 2中 即位置 11处安装有一温度传感器, 在出管 3中即在位置 12处安装有一压差传感器 (图中未绘出), 传 感器通过有线方式与控制器 〔图中未绘出) 相连。
该回收利用装置设计为由使用人直接启动(例如通过直接接通回收利用装置的电源的方式使其进入 工作状态), 并根据预设的控制条件和传感器的信号控制电磁陶和气体泵的开、 关。其具体工作程序为: 先不开启用户端的阀门, 在开启加温氦气供应设备的供气阀门之后直接启动回收利用装置; 如果温度传 感器测得管道中氦气的温度过低不符合要求且压差传感器测得管道中有一定压力时,温度传感器的信号 通过控制器使三通阀 1到出管 3和抽出管 4的方向打开, 气体泵 5启动, 进管 2方向关闭, 将回收利用 装置到用户端的管道中的低温氦气通过出管 3、 三通阀 1、 抽出管 4、 气体泵 5、 导出管 9抽出以供再利 用; 当位置 12处的压差传感器测得回收利用装置到用户端的管道中已基本无氦气时 (此吋管道中的气 体压力接近零甚至为负压), 通过控制器使三通阀 1到进管 2和抽出管 4的方向打开, 气体泵 5继续工 作, 出管 3关闭, 将回收利用装置到高温氦气供应设备的管道中包括高温氦气供应设备内部的低温氦气 通过进管 2、 三通闽 1、 抽出管 4、 气体泵 5、 导出管 9抽出以供再利用; 此时, 加温氦气供应设备对从 系统进气口进入的氦气不断进行加温, 使其达到所需要的温度; 当温度传感器测得高温氦气供应设备出 来的氦气的温度已经符合要求时, 即通过控制器使三通阀 1到进管 2和出管 3的方向恢复打开状态, 抽 出管 4的方向恢复关闭状态, 气体泵 5停止工作, 符合要求的高温氦气即可随用户端陶门的打开, 通过 回收利用装置的进管 2、 三通阀 1、 出管 3送到用户端。 所抽出的低温氦气可直接压入加温氦气供应设 备中供加温后再次利用。
也可在未开启加温氦气供应设备的情况下, 直接启动回收利用装置, 先进行低温氦气的回收, 待回 收利用装置到用户端的管道中和回收利用装置到高温氦气供应设备的管道中存留的低温氦气己基本被 回收完之后再开启加温氦气供应设备的阀门。 此时在进管 2的位置 11处也要安装一压差传感器, 以确 定氦气己基本被抽空并开启加温氦气供应设备的阀门。
优选的控制方式是: 回收利用装置设计为由氦气的流动来启动, 此时可在进管 2中即在位置 11处 安装一温度传感器和一流量传感器, 在出管 3中即在位置 12处安装有一压差传感器和一流量传感器。 开启加温氦气供应设备的供气阀门,氦气开始流动,由流量传感器检测到的流动信号启动回收利用装置, 使其进入工作状态,然后根据氦气的温度是否符合要求来正常供应符合要求的氦气或是在回收不符合要 求的氦气之后供应符合要求的氦气, 并以压差传感器测得的气体被抽空的信号改变三通阀 1的通、 断方 向。 当关闭氦气供应设备的供气阀门或用户端的阀门时, 氦气停止流动, 回收利用装置退出工作状态。 但如果控制器的电路设计为采用以温度传感器测得的管道中的氦气温度不符合要求的信号与流量传感 器测得的液体开始流动的信号一起触发回收利用装置进行回收的控制方式,则只需在位置 11或 12处安 装一个流量传感器即可。
与实施例 3相似的是, 对于自身内部没有贮气容器的加温氦气供应设备而言, 该回收利用装置也可 安装在供应设备的原料氦气的进口管路中。 与安装在出口管路中不同的是: 将位置 11处安装的温度传 感器安装在供应设备的氦气出口管路中, 并可省去位置 11处安装的流量传感器; 在温度传感器测得管 道中氦气的温度过低不符合要求时,将回收利用装置到加温氦气供应设备内部再到用户端的管道中存留 的低温氦气全部一次抽出, 当压差传感器测得管道中己无氦气时, 自动停止回收程序, 并将符合要求的 加温氦气送到用户端。
实施例 6 : 以浴室锅炉为热水供应系统的热源并在其热水出水口管路中安装有自动回收利用装置的 热水供应系统。
见图 3。 该回收利用装置安装在靠近所述锅炉 21的热水出口管路中, 其三通结构 1连接的进管 2 与锅炉 21的热水出口 22连接, 出管 3与用户端及其阀门 20相通, 抽出管 4连接水泵 5, 再通过导出 管 9连接至水箱 12, 三通结构 1上的阀门 6、 7、 8为电磁陶, 其中进管电磁阀 6、 出管电磁阀 7常开, 抽出管电磁阀 8常闭, 导出管 9靠近水箱 12处设置常开导出管电磁阀 17, 导出管 9上连接有装有常闭 支管电磁阀 16的支管 15, 支管 15通过三通管与安有进水阀门 24的进冷水管和锅炉 21的冷水进口 23 连接, 进水阀门 24附近的管道上安装有一单向阀 25, 水箱 12下部装有出水口 18、 冷水出水管及其阀 门 19, 出水口 18通过循环管 13连接到水泵 5与三通结构 1之间的管道上即抽出管 4上, 循环管 13上 装有常闭电磁阀 14, 在三通结构 1的电磁阀 6、 7、 8之间的三通管中即在位置 10处安有温度传感器、 压力传感器、 电阻测定探头 (图中未绘出), 传感元件、 水泵与控制器 (图中未绘出) 电连接, 控制器 根据预设的控制条件和传感元件的信号控制电磁阀的开、 关和水泵的启动、 停止。 在水箱 12的中上部 设有一个高水位传感器, 在下部设有一个低水位传感器 (图中未绘出), 所述水位传感器与控制电磁阀 14、 16、 17 的开、 关的控制器 (可以是上述的同一个控制器) 电连接。 为便于使用, 控制器上还装有 显示部件。
上述安装有冷水回收利用装置的锅炉的具体工作程序为: 开启锅炉 21的供热水开关和回收利用装 置的电源开关, 在未打开用户端的阀门 20时, 管道中的水没有流动, 回收利用装置处于待工作状态, 各个电磁阀及泵均不动作; 打开用户端 (例如浴室淋浴头) 的阀门 20 , 管道中的水开始流动, 三通管 中的压力传感器测得的水流动信号使回收利用装置被启动, 开始进入工作状态。如果温度传感器测得管 道中水的温度低于控制器设定的温度或温度范围时, 传感器得到的信号通过控制器使出管电磁阀 7、 抽 出管电磁阀 8打开, 进管电磁阀 6关闭, 电磁阀 17保持打开状态, 水泵 5同时启动 (工作程序最好设 定为: 打开抽出管电磁阀 8、 启动水泵 5、 关闭进管电磁阀 6 ), 将三通结构 1到用户端的管道中的低温 水或冷水通过出管 3、 出管电磁阔 7、 三通管、 抽出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9、 电磁阀 17抽到水箱 12中以备再利用; 当压力传感器根据压力变化、 或电阻探头根据电阻变化测得管道中已无 液体吋 (此时压力为较小的负压, 电阻很大), 通过控制器使进管电磁阀 6和抽出管电磁阔 8打开, 出 管电磁阀 7关闭, 液体泵 5继续工作 (工作程序最好设定为: 打开进管电磁阔 6、 关闭出管电磁阀 7), 将回收利用装置到锅炉 21的管道中的低温水或冷水通过进管 2、 进管电磁阀 6、三通管、 抽出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9、 电磁阀 17抽到水箱 12中以备再利用 (或依靠系统内部管道中的压力 保持水的运动而使水流到水箱 12中, 不启动水泵), 此吋锅炉 21的热水出口逐渐开始流出热水; 当温 度传感器测得回收利用装置的管道中水的温度己经符合要求时,通过控制器使电磁阀 6和 7恢复打开状 态, 抽出管电磁陶 8恢复关闭状态, 液体泵 5停止工作 (工作程序最好设定为: 打开出管电磁阀 7、 关 闭抽出管电磁阀 8、 关闭水泵 5), 符合要求的热水即可通过回收利用装置的进管 2、 进管电磁阀 6、 三 通管、 出管 3和出管电磁陶 7送到用户端, 放出的水即是热水。
在锅炉开始正常供应热水之后, 如果水箱 12中上部的高水位传感器感知到水箱中有较多回收冷水 时, 即通过控制器开启电磁阀 14和电磁阀 16、 关闭电磁阔 17并启动水泵 5, 将水箱 12中的回收冷水 压入锅炉的进水管道中; 当水箱 12下部的低水位传感器感知到水箱中已没有水时, 即通过控制器打开 电磁阀 17并关闭水泵, 关闭电磁阀 14和电磁阀 16, 整个回收利用装置恢复常态。
回收冷水的再利用工作程序也可设计为另一种控制方式: 当回收利用装置的三通管内的压力传感 器根据压力变化、 或电阻探头根据电阻变化测得三通结构 1到用户端的管道中的液体己被抽空(此时压 力为接近零的较小负压, 电阻很大)并通过控制器使出管电磁阀 7关闭、 进管电磁阀 6和抽出管电磁阀 8打开、 水泵 5继续工作以抽出三通结构 1到锅炉 21的管道中的低温水或冷水时, 同吋通过控制器打 开支管 15上的电磁阀 16、 关闭导出管 9靠近贮液箱一端的电磁阀 17 , 将回收利用装置到锅炉 21的管 道中的低温水或冷水通过冷水进管再压入锅炉 21 中或锅炉的贮水箱中 (工作程序最好设定为: 打开进 管电磁陶 6、 关闭出管电磁阀 7、 打开电磁阀 16、 关闭电磁陶 17), 直至温度传感器测得回收利用装置 中水的温度已经符合要求并通过控制器使回收利用装置的进管电磁阀 6和 7恢复打开状态、抽出管电磁 阀 8恢复关闭状态、 锅炉 21开始正常供应符合温度要求的热水之时为止, 这时, 控制器继续保持电磁 阀 16的打开、 水泵 5的启动和电磁阀 17的关闭, 同时打开常闭电磁闽 14, 将水箱 12中的回收冷水通 过循环管 13、 电磁阀 14、 抽出管 4、 水泵 5、 导出管 9、 支管 15、 电磁阀 16压入锅炉 21中或锅炉的贮 水箱中 (工作程序最好设定为: 打开出管电磁阀 7、 循环管电磁岡 14、 关闭抽出管电磁阀 8) ; 直至水 箱 12下部的低水位传感器感知到水箱中己没有水时,才通过控制器关闭水泵 5以及电磁阀 14和电磁阀 16、 打开电磁阀 17, 使这部分装置恢复常态 (工作程序最好设定为: 打开电磁陶 17、 关闭水泵 5、 关 闭电磁阀 14和 16 )。 此时, 整个回收利用装置也恢复常态。
如果在运行过程中关闭用户端阀门 20或锅炉 21的出热水阔门,压力传感器测得液体停止流动的信 号通过控制器使该装置退出工作状态, 各个电动阀及液体泵恢复常态, 并可在同时打幵用户端阀门 20 和锅炉 21的出热水阀门后使压力传感器测得液体开始流动, 该装置重新进入工作状态。
优选的一个实施方案是: 在进冷水方向的管道中加装一受控制器控制的常开电动阀 26 (此时单向 阀 25可取消)。 在将三通结构 1到锅炉 21的管道中以及水箱 12中的回收冷水压入锅炉 21的冷水进口 中时, 通过控制器关闭电磁阀 26, 待水箱 12中的回收冷水快被抽完, 在通过控制器关闭水泵 5、 关闭 电磁阀 14和电磁阀 16并打开电磁阀 17的同时打开电动阀 26, 来自阀门 24的冷水即可进入锅炉 21。 这样水泵 5的工作压力不一定要高于冷水进管的压力。
在所述控制器上还安装了一个在一定的吋间之内(1秒钟〜 10分钟范围内可调)通过电阻电容电路 给出一个电压信号的一次性信号按键 (图中未绘出), 当先按一下该按键、 再开启用户端阀门时, 所述 压力传感器测得的因液体开始流动(开启一个阀门时)或加快流动(在己有阀门开启时再开启另一个阀 门)而压力减小的信号与上述电压信号相结合, 由控制器电路将温度传感器所输出的信号变为温度不符 合要求的信号, 一次性地再次启动回收利用装置。 这样, 在前一个用户端的阀门刚关闭不久的情况下, 先按一下该按键、 再新开启另一个用户端的阀门, 就可再次启动回收装置(无论温度传感器测得的实际 水温是否符合要求), 将打开的用户管路中的水进行回收, 并在回收完成之后流出符合温度要求的水; 如果前一个用户还在使用热水器 21, 当先按一下该按键、 再新开启另一个用户端的阀门吋, 液体的流 速加快, 所述压力传感器测得的因液体加快流动而压力减小的信号与上述电压信号结合在一起, 由控制 器将温度传感器所输出的信号即刻变为温度不符合要求的信号, 一次性地再次启动回收装置, 在前一个 用户还在使用的情况下强行回收已打开的用户管路中的水 (无论其温度是否符合要求), 并在回收完成 之后流出符合温度要求的水。如果是在按了该按键之后超过控制器调好的时间范围再开启另一个用户端 的阀门, 则由于电路给出的电压信号已消失, 回收利用装置不会再次启动。
另外, 还可以在所述控制器上安装一个持续性信号开关 (图中未绘出), 该开关可通过电路持续给 出一个电压信号, 该信号与每次开启用户端阀门时所述压力传感器测得的因液体开始流动(开启一个阀 门时) 或加快流动(在已有阔门开启时再开启另一个阀门)而压力减小的脉冲信号相结合, 可以由控制 器将温度传感器所输出的信号即刻变为温度不符合要求的信号。 这样, 当打开这个开关之后, 每一个用 户在新开启阀门时都会使回收利用装置启动一次, 将所有打开的用户管路中的水进行回收, 并在回收完 成之后流出温度符合要求的水。
为了使多个用户端的陶门打开后都能直接流出热水, 还可以采用下述方法进行操作: 先打开所有用 户端的阔门 20, 然后开启锅炉 21的出热水阀门, 此时, 由于回收利用装置中的温度传感器测得管道中 的存留液体不符合要求需要回收利用,传感器的信号即可将三通结构 1到各个用户端的管道中的冷水或 低温水抽到水箱 12中; 当压力传感器根据压力变化或电阻探头根据电阻变化测得三通结构 1到各个用 户端的管道中已无液体时, 再将回收利用装置到锅炉 21的管道中的低温水或冷水抽到水箱 12中; 当温 度传感器测得回收利用装置的管道中水的温度已经符合要求时,符合要求的热水即可通过回收利用装置 送到各个用户端, 多个用户端管路中都可直接流出热水。
该锅炉还可如同现有技术一样安装连通至用户端的冷水管及用于调节冷、 热水混合比例的调节阀 门, 以便对上述锅炉所供应热水的温度进行调节。
本实施例中的电磁阀 6、 7、 8 及三通管如果用实施例 2的电动三通阀或电动换向陶等代替, 可以 起到同样的作用。
如果取消循环管 13、 支管 15及其上的阀门并相应改变控制电路的设计, 即可取消将水箱 12中的 回收冷水压入锅炉 21的进水管道中的程序, 而将水箱 12中的冷水另行加以利用; 也可以只取消循环管 13及其上的阀门并相应改变控制电路的设计, 在将回收利用装置到锅炉 21的管道中的低温水或冷水抽 出的同吋将其压入锅炉 21的进水管 23中循环利用。这样所需的零部件较少, 对泵的工作压力的要求降 低, 也不存将回收的低温水或冷水打回进水管时对进水管中水的品质、 压力等造成干扰的问题。
实施例 7 : 在燃气热水器的冷水进水口管路中安装有回收利用装置的燃气热水器。
见图 4。该回收利用装置安装在靠近所述热水器 21的冷水进水管路中, 其出管 3与热水器 21的冷 水进口 23连接,热水器 21的热水出口 22与通向用户端及其阀门 20的管道相连,抽出管 4连接水泵 5, 再通过导出管 9通至水箱 12, 导出管 9靠近水箱 12处设置常开电磁阀 17, 导出管 9的中间通过三通管 与设置有常闭电磁阀 16的支管 15连接,支管 15通过三通管与安有进水阀门 24的冷水进管及该回收利 用装置的进管 2连接, 水箱 12下部装有出水口 18、 冷水出水管及其阀门 19 , 出水口 18通过循环管 13 及三通管连接到水泵 5与三通结构 1之间的抽出管 4上, 循环管 13中装有常闭电磁阀 14, 回收利用装 置的进管 2、 出管 3、 抽出管 4上的阀门 6、 阀门 7、 阀门 8为电磁闽, 其中进管电磁阀 6、 出管电磁阀 7常开, 抽出管电磁阀 8常闭, 在靠近出水口 22的管道中安有热电偶 (图中未绘出), 在冷水进口 23 中安有流量传感器和电导传感器 (图中未绘出), 在水箱 12的出水口 18中设有感知液体是否被抽空的 电导传感器 (图中未绘出), 所述传感元件通过无线方式与控制器 (图中未绘出) 电连接, 其中, 热电 偶电路串接在回收利用装置的电源电路中, 在水温符合要求时, 电源电路不通, 回收利用装置不工作, 当其测得的管道中的水温不符合要求时, 所得到信号通过控制器使回收利用装置得电, 从而进入工作状 态; 控制器根据预设的控制条件和传感元件的信号控制各电磁阔的开、 关和水泵的启动、 停止。
上述安装有冷水回收利用装置的燃气热水器的具体工作程序为: 打开热水器 21相应的水、 电、 气 等开关和回收利用装置的电源开关, 打开用户端的阀门 20, 管道中的水开始流动, 热水器 21开始工作; 如果热电偶测得管道中水的温度符合设定的温度或温度范围时, 回收利用装置不工作, 各个电磁阔及泵 不动作, 热水器正常供应热水; 如果热电偶测得管道中水的温度低于控制器设定的温度或温度范围时, 回收利用装置进入工作状态, 流量传感器得到的液体流动信号通过控制器使出管电磁阀 7、 抽出管电磁 阀 8打开,水泵 5启动, 进管电磁阀 6关闭, 将三通结构 1到用户端的管道中(包括热水器内部管道中) 的低温水或冷水通过出管 3、 出管电磁阀 7、 三通管、 抽出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9、 电磁阀 17抽到水箱 12中以备再利用 (工作程序最好设定为: 打开抽出管电磁阔 8、 打开水泵 5、 关闭 进管电磁阀 6 ) ; 当电导传感器根据电导变化测得管道中已无液体吋 (此时电导很小), 通过控制器使进 管电磁阔 6打开, 出管电磁阀 7保持打开状态, 关闭抽出管电磁阀 8, 液体泵 5停止工作 〔工作程序最 好设定为: 打开进管电磁陶 6、 关闭水泵 5、 关闭抽出管电磁阀 8), 冷水通过回收利用装置的进管 2、 进管电磁阀 6、 三通管、 出管 3和出管电磁阀 7送到燃气热水器中, 并不断通过热水器加热后输送到用 户端。
在热水器开始正常供应热水之后, 如果水箱 12的出水口 18中设有的电导传感器感知到水箱中有 水时, 即通过控制器打开电磁阀 14、 16 , 关闭电磁岡 17、 启动水泵 5 , 将水箱 12中的回收冷水通过出 水口 18、 循环管 13、 电磁阀 14、 抽出管 4、 水泵 5、 导出管 9、 支管 15、 电磁阔 16压入热水器 21的 冷水进水管道中; 当水箱 12的出水口 18中设有的电导传感器感知到水箱 12中己没有水时, 即通过控 制器关闭电磁阀 14、 16 , 打开电磁阀 17并关闭水泵, 这部分回收利用装置恢复常态。
所回收冷水的再利用程序也可设计为由控制器根据冷水进口 23中的电导传感器的信号进行控制的 另一种控制方式, 其具体工作程序是: 当电导传感器根据压力变化测得三通结构 1到用户端的管道中的 液体已被抽空 (此时电导很小) 时, 通过控制器使回收利用装置的进管电磁阀 6打开、 出管电磁阀 7保 持打开状态, 电磁阀 8、 17关闭, 电磁阀 14、 16打开, 水泵 5继续工作, 在热水器 21开始正常供应符 合温度要求的热水的同吋, 将水箱 12中的回收冷水通过出水口 18、 循环管 13、 电磁阀 14、 抽出管 4、 水泵 5、 导出管 9、 支管 15、 电磁阀 16压入热水器 21的冷水进水管道中 (工作程序最好设定为: 打开 电磁阀 6、 14、 16、 关闭电磁阀 8、 17), 直至出水口 18处设有的电导传感器感知到水箱 12中已没有水 时, 即通过控制器关闭电磁阀 16、 14, 打开电磁阔 17并关闭水泵 5, 回收利用装置恢复常态。
如果在运行过程中关闭用户端阀门 20或热水器进水阀门 24 (此吋流量为零), 流量传感器测得的 液体停止流动的信号通过控制器使各个电动阀及液体泵恢复常态。
该回收利用装置的三个方向装有电磁阀 6、 7、 8 (由于出管 3常通, 电磁阀 7也可省去) 的三通管 可以用电动三通阀或换向晴代替。该回收利用装置同样可以用于其他没有贮液装置而是快速对冷水进行 加热的热水供应系统或设备如即热式电热水器。
优选的一个实施方案是:将支管 15从接至电磁阀 6和阀门 24之间的管道中改接至电磁阀 6和电磁 阀 7之间的管道中 (如附图 4中的粗虚线所示), 通过改变控制器设定的程序, 在将三通结构 1到用户 端的管道中 (包括热水器内部管道中) 的低温水或冷水抽到水箱中之后, 打开电磁阀 14、 16、 关闭电 磁阀 8、 17, 先将水箱 12中的回收冷水压入热水器 21的冷水进管即电磁阀 6和电磁阀 7之间的管道之 中(此吋电磁阀 6是关闭的); 待水箱 12中的回收冷水快被抽完, 在通过控制器关闭水泵、 关闭电磁阀 14和电磁阀 16并打开电磁阀 17的同时打开电磁阀 6, 来自阔门 24的冷水即可进入热水器。 这样可以 降低对水泵 5工作压力的要求。
实施例 8 : 在燃气热水器的冷水进水口管路中安装有使用双向水泵的回收利用装置的燃气热水器。 见图 5。该回收利用装置安装在靠近所述热水器 21的冷水进水管路中, 其进管 2与带单向阀 25及 进水阀门 24的冷水进水管连接, 其出管 3与热水器 21的冷水进口 23连接, 抽出管 4连接双向水泵 5, 再通过导出管 9直接通至水箱 12的近底部, 回收利用装置的进管 2、 出管 3、 抽出管 4上的阀门 6、 7、 8为电磁阀, 其中进管电磁阀 6、 出管电磁阀 7常幵, 抽出管电磁阀 S常闭, 热水器 21的热水出口 22 与通向用户端及其阀门 20的管道相连,在每个用户端阀门附近的管道外的 32处安有遥测温度传感器和 流动传感器 (流动传感器也可只在燃气热水器 21的冷水进口 23的管道中即 31处安装一个), 在 31处 安有电导传感器 (图中未绘出), 在水箱 12的中上部和下部各设有一个水位传感器 (图中未绘出), 水 箱 12下部装有冷水出水管及其阀门 19, 所述双向水泵 5、 传感器与控制器(图中未绘出)无线电连接, 控制电路设计为每个用户端的温度传感器得到的信号加上流动传感器得到的信号均可以启动回收利用 程序。 为便于使用, 控制器上还装有显示部件。
上述安装有冷水回收利用装置的燃气热水器的具体工作程序为: 打开热水器 21相应的水、 电、 气 等开关和回收利用装置的电源开关; 打开任一用户端的阀门 20, 管道中的水开始流动, 热水器 21开始 工作; 如果管道中水的温度低于控制器设定的温度或温度范围时, 该用户端的温度传感器加上流动传感 器得到的信号即可启动控制器使进管电磁阀 6关闭, 出管电磁阀 7、 抽出管电磁阀 8打开, 水泵 5正向 启动, 将三通结构 1到用户端的管道中 (包括热水器内部管道中) 的低温水或冷水通过出管 3、 出管电 磁阀 7、 三通管、 抽出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9抽到水箱 12中以备再利用 (工作程序 最好设定为: 打开抽出管电磁阀 8、 启动水泵 5、 关闭进管电磁阀 6 ) ; 当电导传感器根据电导变化测得 管道中液体己被抽空时 (此时电导很小, 但仍有空气流动), 通过控制器使进管电磁阁 6打开, 出管电 磁阀 7保持打开状态, 关闭抽出管电磁阀 8, 液体泵 5停止工作 (工作程序最好设定为: 打开进管电磁 阀 6、 关闭水泵 5和抽出管电磁闽 8), 冷水通过回收利用装置的进管 2、 进管电磁阔 6、 三通管、 出管 电磁陶 7和出管 3送到燃气热水器中, 并不断通过热水器加热后输送到用户端。 由于出管 3常通, 电磁 阀 7也可省去。
在热水器开始正常供应热水之后, 如果水箱 12中上部的高水位传感器感知到水箱中有较多水时, 即通过控制器同时打开抽出管电磁阔 8, 水泵 5反向启动, 将水箱 12中的回收冷水通过导出管 9、 水泵 5、 抽出管 4、 抽出管电磁阀 8压入热水器 21的进水管道中; 当水箱 12下部的低水位传感器感知到水 箱 12中己没有水时, 即通过控制器关闭抽出管电磁阀 8并关闭水泵 5 , 这部分回收利用装置恢复常态。 这一方案需要三通结构 1的三个方向都可以同时打开。
优选的一个实施方案是: 当三通结构 1到用户端的管道中的液体被抽空后, 通过控制器使进管电磁 阀 6保持关闭, 抽出管电磁阀 8保持打开, 反向启动水泵 5, 先将水箱 12中的回收冷水压入热水器 21 的进水管道中; 当水箱 12中的回收冷水接近被抽完吋, 通过控制器打开电磁阔 6, 同时关闭水泵 5和 抽出管电磁阀 8, 来自阀门 24的冷水即可进入热水器 21。 这样所需的水泵 5的工作压力可以较低, 也 不需要三通结构 1的三个方向都可以同时打开。
该热水供应系统还可如同现有技术一样安装连通至用户端的冷水管及用于调节冷、 热水混合比例 的调节陶门, 以便对上述热水器所供应热水的温度进行调节。 由于在每个用户端的阀门附近都安有温度 传感器, 因此, 在前一用户正在使用之时或停用热水器之后, 如果打开另一用户端的阀门 20而且该用 户管道中水的温度低于控制器设定的温度或温度范围时,该用户端的温度传感器得到的信号仍然可以重 新启动回收利用程序。
如果将水泵 5改为单向水泵并相应改变控制电路的设计, 即可取消将水箱 12中的回收冷水压入热 水器 21的进水管道中的程序, 而抽出的冷水可以另行加以利用。 这样所需的零部件较少, 对泵的要求 降低。
实施例 9 : 直接将导出管连通至热水器的原液进液管的电热水器
见图 6。 该回收利用装置安装在靠近所述电热水器 21的热水出口管路中, 其三通结构 1所连接的 进管 2与热水器 21的热水出口 22连接, 出管 3与用户端及其阀门 20相通, 抽出管 4连接水泵 5, 再 通过导出管 9直接与热水器的进冷水管相通, 回收利用装置的进管 2、 出管 3、 抽出管 4上的阀门 6、 7、 8为电磁阀, 其中进管电磁阔 6、 出管电磁阀 7常开, 抽出管电磁阀 8常闭, 导出管 9上安装有一单向 阀 25, 以消除进冷水管中的冷水对水泵 5的影响, 在三通结构 1的电磁阀 6、 7、 8之间的三通管中即 在位置 10处安有流动开关、 温度传感器、 电导传感器(图中未绘出), 流动开关、 传感器和水泵与控制 器 (图中未绘出) 电连接。
上述热水器的具体工作程序为: 开启热水器 21的阀门和回收利用装置的电源开关, 在未打开用户 端的阀门 20吋, 管道中的水没有流动, 回收利用装置处于待工作状态, 各个电磁阀及泵均不动作; 打 开用户端 (例如浴室淋浴头) 的阀门 20, 管道中的水开始流动, 三通管中的流动开关通过控制器的电 路接通回收利用装置的电源, 使其进入工作状态。如果此时温度传感器测得管道中水的温度低于控制器 设定的温度或温度范围吋, 传感器得到的信号通过控制器使出管电磁闽 7、 抽出管电磁阀 8打开, 进管 电磁阀 6关闭, 水泵 5同时启动 (工作程序最好设定为: 打开抽出管电磁阀 8、 启动水泵 5、 关闭进管 电磁阀 6 ) , 将三通结构 1到用户端的管道中的低温水或冷水通过出管 3、 出管电磁阀 7、 三通管、 抽出 管电磁陶 8、 抽出管 4、 水泵 5、 导出管 9抽到热水器的进冷水管中; 当电导传感器根据电导变化测得 管道中已无液体时 (此吋只有空气流动, 电导很小), 通过控制器使进管电磁阔 6和抽出管电磁阀 8打 开, 出管电磁阀 7关闭, 液体泵 5继续工作 (工作程序最好设定为: 打开进管电磁阀 6、 关闭出管电磁 阀 7), 将回收利用装置到热水器 21的管道中的低温水或冷水通过进管 2、 进管电磁阀 6、 三通管、 抽 出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9抽到热水器的进冷水管中, 此时热水器 21的热水出口逐渐 开始流出热水; 当温度传感器测得回收利用装置的管道中水的温度已经符合要求时, 通过控制器使电磁 阀 6和 7恢复打开状态, 抽出管电磁阀 8恢复关闭状态, 液体泵 5停止工作(工作程序最好设定为: 打 开出管电磁阀 7、 关闭抽出管电磁阀 8、 关闭水泵 5), 符合要求的热水即可通过回收利用装置的进管 2、 进管电磁阀 6、 三通管、 出管 3和出管电磁阀 7送到用户端, 放出的水即是热水。 也可通过改变控制器 的程序先回收三通结构 1到热水器 21的管道中的低温水或冷水, 再回收三通结构 1到用户端的管道中 的低温水或冷水, 这样热水器可以持续工作一段时间, 不会一启动又马上停止。 该回收利用装置也可安装在自身内部没有贮液箱的热水供应装置(例如常见的燃气热水器或没有贮 液箱的即热式电热水器) 的冷水进口的管路中, 只是将温度传感器安装在热水出口管道中, 并可省去电 磁阀 7, 其进管 2与进冷水管连接, 其出管 3与热水器的冷水进口连接, 热水器的热水出口与通向用户 端及其阀门 20的管道相连, 抽出管 4连接水泵 5, 再通过导出管 9直接通至进冷水管中。 当出口管道 中水的温度低于控制器设定的温度或温度范围时, 传感器得到的信号通过控制器使抽出管电磁阀 8 打 开, 水泵 5启动, 进管电磁阀 6关闭, 将三通结构 1到用户端的管道中 (包括热水器内部管道中) 的低 温水或冷水通过出管 3、 三通管、 抽出管电磁阀 8、 抽出管 4、 水泵 5、 导出管 9直接压入进冷水管中; 当电导传感器根据电导变化测得管道中己无液体时 (此时只有空气流动, 电导很小), 通过控制器使进 管电磁阀 6打开, 关闭抽出管电磁阀 8, 液体泵 5停止工作, 冷水通过回收利用装置的进管 2、 进管电 磁阀 6、 三通管、 出管 3送到燃气热水器中, 并不断通过热水器加热后输送到用户端。
如果上述回收利用装置的导出管 9不与热水器的进冷水管相通, 而是通向一贮液装置, 并将该贮液 装置中的冷水另行加以利用, 则可取消将回收的低温水或冷水压到热水器的进冷水管中的程序, 这样对 泵的压力要求降低, 也不存将回收冷水压到进冷水管中时对管中水的品质、 压力等造成干扰的问题。
实施例 10: 装有将水泵串接在进管和出管之间的回收利用装置的燃气热水器
见图 7。 水泵 5的两端直接与回收利用装置的进管 2和出管 3相通, 即直接串接在所述进管和出管 之间, 水泵工作时水的流向与管道中原来水的流向相反。这种回收利用装置优选安装在燃气热水器进水 口的管路中, 例如将所述进管 2连接带阀门 24的冷水进管, 出管 3连接燃气热水器 21的冷水进口 23, 燃气热水器 21的热水出口 22连接用户端的管道, 各用户端上有阀门 20。 在燃气热水器热水出口 22的 管道 32处安装有双金属温度开关, 在水泵与燃气热水器冷水进口 23之间的管道 31处安装一个液体流 动开关 (为避免误操作, 最好将液体流动开关安装在热水出口 22的管道 32处), 其中双金属温度开关 在温度符合要求时断开, 液体流动开关在无液体流动时断开, 二者通过控制器 30前后串联在水泵 5的 电源电路中。该技术方案的水泵的输出泵压应大于冷水进管中的水压, 而且在水泵不启动吋可以让管道 中的水正常通过; 如果将一管道的两端与水泵的两端连通, 管道中设有一电动阀, 当水泵工作时该电动 阀关闭, 当水泵停止工作吋该电动阀打开, 也可解决水泵不启动时让管道中的水正常通过的问题。
当作好热水器供应热水的准备并开启阀门 24和 20时, 燃气热水器开始工作, 水开始流动, 液体流 动开关闭合; 但如果此时燃气热水器出水口 22的管道中水的温度符合要求时, 双金属温度开关断开, 水泵 5不启动, 热水器 21正常供应符合要求的热水; 如果管道中的水的温度不符合要求需要回收利用 时, 双金属温度开关闭合, 水泵 5启动, 将回收利用装置到热水器内部管路中再到用户端管路中的水反 向抽出并压入冷水进管中, 在水被抽空后, 液体流动开关断开, 水泵 5停止, 热水器 21即可正常供应 符合要求的热水。 由于减少了三通结构及相关阀门, 这一方案的体积、 成本进一歩减少, 并且只需拆开 燃气热水器进、 出水口的连接螺母即可将该回收利用装置及相应的传感元件插装在其管路中, 不需要改 动原有的管路及阀门等, 因此安装、 维修都十分方便。
这种回收利用装置也可安装在液体供应系统或设备出液口的管路中, 只是将双金属温度开关、液体 流动开关都安装在燃气热水器热水出口 22到用户端的管道中, 但不足之处是不能回收液体供应系统或 设备内部的液体。

Claims

、 流体供应系统或设备中存留流体的回收利用装置, 该回收利用装置串联在所述流体供应系统或设备 的管路中, 包括引入流体的进管 (2), 排出流体的出管 (3), 与所述进管和出管相通的流体输送装 置 (5), 其特征在于: 在流体的管路中或管路外设有至少一个流体状况传感元件, 在所述流体供应 系统或设备出口端的管路中或管路外设有至少一个流体性能传感元件, 所述传感元件通过控制电路 与所述流体输送装置 (5) 电连接。 、 根据权利要求 1所述的回收利用装置, 其特征在于: 所述流体状况传感元件包括流体流动传感部分 和流体抽空传感部分, 所述流体流动传感部分和流体抽空传感部分是一个合用的元件或两个独立的 元件。 、 根据权利要求 1所述的回收利用装置, 其特征在于: 还包括带流体流向选择控制电动阀的三通结构( 1 ), 所述三通结构 (1 ) 的三个方向分别通向所述进管 (2)、 出管 (3) 和连接所述流体输送装置 ( 5) 的抽出管 (4), 所述电动阔与控制电路电连接。 、 根据权利要求 3所述的回收利用装置, 其特征在于: 所述流体输送装置 (5) 通过导出管 (9) 连通 至流体贮存容器 (12)。 、 根据权利要求 4所述的回收利用装置, 其特征在于: 所述导出管(9 )通过支管(15)连通至所述流 体供应系统或设备的流体进口端的管道中,所述支管(15)上设有支管电动阀(16 ),所述导出管(9) 靠近流体贮存容器 (12) 的一端设有导出电动阀 (17), 所述电动阔与控制电路电连接。 、 根据权利要求 4所述的回收利用装置, 其特征在于: 所述流体贮存容器 (12) 通过循环管和流体输 送装置连通至所述流体供应系统或设备的流体进口端的管道中, 所述流体贮存容器 (12) 中还设有 流体状况传感元件, 所述传感元件和流体输送装置与控制电路电连接。 、 根据权利要求 6所述的回收利用装置, 其特征在于, 所述流体贮存容器 (12) 通过循环管和流体输 送装置连通至所述流体供应系统或设备的流体进口端的管道中为: 所述流体贮存容器 (12) 通过循 环管 (13 ) 与所述回收利用装置的抽出管 (4 ) 相通, 所述导出管 (9) 通过支管 (15) 与所述流体 供应系统或设备的流体进口端的管道相通,所述循环管(13)中设有循环电动阀(14),所述支管(15) 上设有支管电动阀 (16), 所述导出管 (9) 靠近流体贮存容器 (12 ) 的一端设有导出电动阀 (17), 所述电动阀与控制电路电连接。 、 根据权利要求 4所述的回收利用装置, 其特征在于: 所述流体输送装置 (5) 为双向流体输送装置, 所述回收利用装置安装在所述流体供应系统或设备的流体进口端的管路中,所述流体贮存容器(12) 中还设有流体状况传感元件, 所述传感元件与控制电路电连接。 、 根据权利要求 3所述的回收利用装置, 其特征在于: 所述流体输送装置 (5) 通过导出管 (9) 连通 至所述流体供应系统或设备的流体进口端的管道中。0、 根据权利要求 1所述的回收利用装置, 其特征在于: 所述流体输送装置 (5 ) 直接串接在所述 进管和出管之间。
1、 根据权利要求 1〜10之一所述的回收利用装置, 其特征在于: 在所述回收利用装置电路上安装 有用于将所述感知流体性能的传感元件输出的电信号转变为不符合要求的电信号的一次性信号按键 或 /和持续性信号开关。
2、 根据权利要求 5〜7之一所述的回收利用装置, 其特征在于: 在所述连通至所述流体供应系统 或设备的流体进口端的管道中的连通处与流体供应系统或设备的进流体阀门之间有一电动阀。
3、 包含如权利要求 1〜12之一所述回收利用装置的流体供应系统或设备。
4、 根据权利要求 13所述的流体供应系统或设备, 其特征在于: 所述流体供应系统或设备以燃气 热水器、 电热水器、 太阳能热水器或锅炉为流体供应源。 、 用权利要求 1〜14之一所述回收利用装置回收利用存留流体的方法,其特征在于包括以下步骤: 开通流体通路; 所述回收利用装置自动根据所述传感元件测得的信号进行工作: 供应符合要求的流 体, 或回收不符合要求的流体后供应符合要求的流体。
、 用权利要求 1〜7、 9、 11〜14之一所述回收利用装置回收利用存留流体的方法, 其特征在于包 括以下步骤: 将所述回收利用装置安装在靠近所述流体供应系统或设备的流体出口的管路中; 开通 流体通路; 所述回收利用装置自动根据所述传感元件测得的信号进行工作: 供应符合要求的流体, 或在分别回收所述回收利用装置到用户端管路中的流体和回收利用装置到流体供应系统或设备内部 管路中的流体之后供应符合要求的流体。
、 用权利要求 1〜14之一所述回收利用装置回收利用存留流体的方法,其特征在于包括以下步骤: 将所述回收利用装置安装在靠近所述流体供应系统或设备的流体进口的管路中; 开通流体通路; 所 述回收利用装置自动根据传感元件测得的信号进行工作: 供应符合要求的流体, 或在将回收利用装 置到流体供应系统或设备内部再到用户端管路中的存留流体回收之后供应符合要求的流体。
、 用权利要求 1〜14之一所述回收利用装置回收利用存留流体的方法, 其特征在于: 所述流体为 液体; 所述开通流体通路包括在开启所述液体的供应系统或设备之前或之后打开用户端的阀门。 、 用权利要求 1〜14之一所述回收利用装置回收利用存留流体的方法, 其特征在于: 所述流体为 气体, 在回收不符合要求的气体之后打开用户端的阀门。
、 用权利要求 1〜14之一所述回收利用装置回收利用存留流体的方法, 其特征在于: 还包括在新 打开用户端的阔门之前先启动所述一次性信号按键或持续性信号幵关。
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