CN111594902B - Anti-freezing method and floor heating system - Google Patents
Anti-freezing method and floor heating system Download PDFInfo
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- CN111594902B CN111594902B CN202010491306.7A CN202010491306A CN111594902B CN 111594902 B CN111594902 B CN 111594902B CN 202010491306 A CN202010491306 A CN 202010491306A CN 111594902 B CN111594902 B CN 111594902B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 262
- 238000007710 freezing Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 611
- 238000005086 pumping Methods 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 44
- 239000013589 supplement Substances 0.000 claims description 15
- 230000002528 anti-freeze Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 230000003020 moisturizing effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 108010053481 Antifreeze Proteins Proteins 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0095—Devices for preventing damage by freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention provides an anti-freezing method and a floor heating system, wherein the anti-freezing method is applied to the floor heating system, the floor heating system comprises a floor heating device, a water storage pipeline, a water return pipeline and a water storage tank, one end of each of the water storage pipeline and the water return pipeline is connected with the water storage tank, the other end of each of the water storage pipeline and the water return pipeline is connected with the floor heating device, and the anti-freezing method comprises the following steps: when the preset water storage and anti-freezing conditions are met, the floor heating device is controlled to stop; controlling a water storage pipeline to input water in the floor heating device into a water storage tank for storage; when the preset starting-up heating condition is met, controlling a water return pipeline to input water stored in a water storage tank into the floor heating device; and controlling the floor heating device to start. The anti-freezing method has the characteristics of resource and energy conservation and high automation degree.
Description
Technical Field
The invention relates to the technical field of anti-freezing, in particular to an anti-freezing method and a floor heating system.
Background
At present, floor heating devices on the market generally adopt two modes for preventing freezing when the environment temperature is lower than the set temperature and a user does not use the floor heating devices for a long time. Firstly, a floor heating device is intermittently started and prevented from freezing, heating devices such as a water pump and a gas wall-mounted boiler in a control system are intermittently started and stopped to circulate and heat water in the system, and energy sources such as electric energy and gas are greatly consumed in the mode; secondly, the manual valve that opens is artifical, directly arranges the water in the floor heating device to the greatest extent, and this mode causes the very big waste of water resource, and manual operation, comparatively inconvenient.
Disclosure of Invention
The invention solves the problem that the energy consumption of the conventional heating system is too high in a starting-up anti-freezing mode.
In order to solve the problems, the invention provides an anti-freezing method and a floor heating system, which have the characteristics of resource and energy consumption saving and high automation degree.
In a first aspect, an embodiment provides an anti-freezing method, which is applied to a floor heating system, where the floor heating system includes a floor heating device, a water storage pipeline, a water return pipeline and a water storage tank, where one end of each of the water storage pipeline and the water return pipeline is connected to the water storage tank, and the other end of each of the water storage pipeline and the water return pipeline is connected to the floor heating device, and the anti-freezing method includes:
when the preset water storage and anti-freezing conditions are met, controlling the floor heating device to stop;
controlling the water storage pipeline to input water in the floor heating device into the water storage tank for storage;
when the preset starting-up heating condition is met, controlling the water return pipeline to input the water stored in the water storage tank into the floor heating device;
and controlling the floor heating device to be started.
According to the anti-freezing method provided by the embodiment of the invention, the floor heating device is controlled to stop when the preset water storage anti-freezing condition is met, and the floor heating device is controlled to start when the starting heating condition is met, so that the floor heating device is prevented from starting and preventing freezing. Water in the floor heating device is input into the water storage tank through the control water storage pipeline to be stored, so that one-time anti-freezing protection of the floor heating device is achieved, water stored in the water storage tank is input into the floor heating device through the control water return pipeline, automatic water supplement of the floor heating device is achieved, and normal work of the floor heating device is guaranteed.
In an optional embodiment, the step of controlling the water storage pipeline to input the water in the floor heating device into the water storage tank for storage comprises:
controlling the water storage pipeline to convey water in the floor heating device to the water storage tank;
and when the water pressure in the floor heating device is lower than a first preset pressure, controlling the water storage pipeline to stop conveying.
The water pressure monitoring result in the floor heating device is used as a control basis for the water storage process, and the automatic control of the water storage and anti-freezing process is realized. When the water pressure in the floor heating device is lower than the first preset pressure, the residual water in the floor heating device is judged to meet the anti-freezing requirement, and water delivery to the water storage tank can be stopped in time at the moment, so that the energy consumption is further reduced.
In an optional embodiment, the floor heating system further includes a water drainage pipeline, the water storage tank is selectively communicated with the outside through the water drainage pipeline, and after the step of controlling the water storage pipeline to convey the water in the floor heating device to the water storage tank, the floor heating system further includes:
when the water level in the water storage tank reaches a first preset water level, controlling the drainage pipeline to drain the water in the water storage tank to the outside so as to keep the water level in the water storage tank at the first preset water level.
According to the monitoring of the water level in the water storage tank, the water storage capacity of the water storage tank is prevented from exceeding the limit. Through first predetermined water level to when the water level reached first predetermined water level in the storage water tank, control the automatic drainage of water drainage pipe way, further promoted control process's degree of automation.
In an optional embodiment, when a preset starting-up heating condition is met, the step of controlling the water return pipeline to input the water stored in the water storage tank into the floor heating device comprises:
controlling the water return pipeline to convey the water stored in the water storage tank to the floor heating device;
and when the water pressure in the floor heating device reaches a second preset pressure, controlling the water return pipeline to stop conveying.
Similarly, the water pressure monitoring result in the floor heating device is used as the control basis of the water return process, so that the automatic control of the water return process of the floor heating device is realized. When the water pressure in the floor heating device reaches the second preset pressure, the water quantity in the floor heating device is judged to meet the water quantity requirement of normal work, the water delivery to the floor heating device can be stopped in time at the moment, the normal work of the floor heating device is prevented from being influenced by excessive water inflow, and the energy consumption is further reduced.
In an optional embodiment, the floor heating system further includes a water supply pipeline, the water storage tank is externally connected with a water source through the water supply pipeline, and after the step of controlling the water return pipeline to convey the water stored in the water storage tank to the floor heating device, the floor heating system further includes:
and when the water level in the water storage tank is lower than a second preset water level, controlling the water replenishing pipeline to input external water into the water storage tank so as to keep the water level in the water storage tank at the second preset water level.
Through the control to storage water tank low water level, prevent that the water level of storage water tank from crossing low and influencing the ground heating device return water to guarantee that follow-up can carry out normal moisturizing to ground heating device.
In an optional embodiment, after the step of controlling the floor heating device to be turned on, the anti-freezing method further includes:
when the water pressure in the floor heating device is lower than a third preset pressure, the water return pipeline is controlled to input the water stored in the water storage tank into the floor heating device until the water pressure in the floor heating device reaches the third preset pressure.
Because floor heating device is at the operation in-process, its inside air that exists can go out at devices such as water pump, gas hanging stove and reveal to, still can take place water and reveal and moisture loses, all need carry out the moisturizing to floor heating device under this kind of circumstances in order to guarantee water pressure. Therefore, the water return pipeline is controlled to supplement water in real time by presetting third preset pressure as a water pressure threshold value of the floor heating device needing water supplement, and therefore normal operation of the floor heating device is guaranteed.
In an alternative embodiment, the water storage freeze protection conditions include:
and receiving a water storage anti-freezing instruction input by a user, or enabling the number of times of starting and anti-freezing of the floor heating device in a standby state within a preset time period to exceed a preset number of times, and after the preset time period, enabling the floor heating device to be started and anti-freezing at least once.
Through the frequency monitoring of the floor heating device startup anti-freezing in the preset time period, whether the floor heating device is in a low-temperature environment for a long time and is not used is judged, water storage and anti-freezing are selectively carried out, and the instant work of the floor heating device is prevented from being influenced while the energy consumption is reduced.
In a second aspect, an embodiment provides a floor heating system, which includes a controller, a floor heating device, a water storage pipeline, a water return pipeline, a water discharge pipeline, a water supplement pipeline and a water storage tank, wherein one end of each of the water storage pipeline and the water return pipeline is connected with the water storage tank, the other end of each of the water storage pipeline and the water return pipeline is connected with the floor heating device, the water storage tank is selectively communicated with the outside through the water discharge pipeline, the water storage tank is externally connected with a water source through the water supplement pipeline, the controller is electrically connected with the floor heating device, the water storage pipeline, the water return pipeline, the water discharge pipeline and the water supplement pipeline respectively, and the controller is used for controlling the floor heating device to stop when a preset water storage anti-freezing condition is met, and controlling the water storage pipeline to input water in the floor heating device into the water storage tank for storage; the controller is further used for controlling the water return pipeline to input the water stored in the water storage tank into the floor heating device and controlling the floor heating device to be started when a preset starting-up heating condition is met.
According to the floor heating system provided by the embodiment of the invention, the controller controls the start and stop of the floor heating device under two conditions, so that the floor heating device is prevented from being started and prevented from being frozen. The controller inputs water in the floor heating device into the water storage tank through controlling the water storage pipeline to store so as to realize one-time anti-freezing protection on the floor heating device, and inputs the water stored in the water storage tank into the floor heating device through controlling the water return pipeline so as to realize automatic water supplement on the floor heating device, and the normal work of the floor heating device is ensured.
In an optional embodiment, the water storage tank is provided with a water level detection device, the water level detection device is electrically connected to the controller, the controller is further configured to control the water discharge pipeline to discharge water in the water storage tank to the outside when the water level detection device detects that the water level in the water storage tank reaches a first preset water level, so that the water level in the water storage tank is maintained at the first preset water level, and the controller is further configured to control the water supply pipeline to input outside water into the water storage tank when the water level detection device detects that the water level in the water storage tank is lower than a second preset water level, so that the water level in the water storage tank is maintained at the second preset water level, and the first preset water level is higher than the second preset water level.
According to the monitoring of the water level detection device on the water level in the water storage tank, the water storage capacity of the water storage tank is prevented from exceeding the limit. The controller controls the drainage pipeline to automatically drain when the water level in the water storage tank reaches a first preset water level, and the automation degree of the control process is further improved. The controller prevents that the water level of storage water tank is low excessively and influence ground heating device return water through the control to storage water tank low water level to guarantee that follow-up can carry out normal moisturizing to ground heating device.
In an optional embodiment, the return water pipe is connected the one end of floor heating device is provided with water pressure detection device, water pressure detection device with the controller electricity is connected, water pressure detection device is used for detecting water pressure in the floor heating device, the controller is still used for according to water pressure detection device's detection result control the water storage pipe stop with water in the floor heating device to the storage water tank is carried, the controller is still used for according to water pressure detection device's detection result control the return water pipe stop with water in the storage water tank to floor heating device carries.
The water pressure detection device is used for detecting the water pressure of the floor heating device, the controller controls the water delivery amount of the floor heating device to the water storage tank according to the detection result of the water pressure detection device, and controls the water delivery amount of the water storage tank to the floor heating device, so that the accurate control of the water amount in the floor heating device is realized, and the anti-freezing effect and the normal work of the floor heating device are ensured.
In an optional implementation manner, a first control valve, a pumping device, and a second control valve are respectively disposed on the water storage pipeline, the pumping device is disposed between the first control valve and the second control valve, the second control valve is closer to the water storage tank than the first control valve, the pumping device, and the second control valve are respectively electrically connected to the controller, and the controller is configured to control the first control valve and the second control valve to open and control the pumping device to start up when the water storage anti-freezing condition is met, so as to input water in the floor heating device into the water storage tank.
In an optional embodiment, the water return pipeline includes a first branch section and a second branch section, one end of the first branch section is connected to the pipeline between the first control valve and the pumping device, the other end of the first branch section is connected to the water storage tank, one end of the second branch section is connected between the pumping device and the second control valve, the other end of the second branch section is connected to the floor heating device, a third control valve is disposed on the first branch section, a fourth control valve is disposed on the second branch section, the third control valve and the fourth control valve are electrically connected to the controller, respectively, and the controller is further configured to control the first control valve and the second control valve to be closed, control the third control valve and the fourth control valve to be opened, and control the pumping device to be started when the start-up heating condition is met, so as to input the water in the water storage tank into the floor heating device.
The water return pipeline and the water storage pipeline share the same pumping device, production and application costs of the floor heating system are greatly reduced, and the controller controls the first control valve, the second control valve, the third control valve and the fourth control valve in a coordinated mode through starting and stopping conditions of the corresponding pumping devices, so that automatic switching of a water storage anti-freezing process and a water return process is achieved.
In an optional implementation manner, the water storage pipeline, the water return pipeline, and the water replenishing pipeline are all provided with a filtering device, the water discharging pipeline is provided with a fifth control valve, the water replenishing pipeline is provided with a sixth control valve, and the fifth control valve and the sixth control valve are respectively electrically connected with the controller.
Through all filter equipment on water storage pipeline, return water pipeline and moisturizing pipeline, realize the multiple protection to floor heating device, prevent that the impurity of external water source input from getting into floor heating device, extension floor heating device life. The controller realizes the automation of the drainage and water supplement processes through the respective opening and closing control of the fifth control valve and the sixth control valve.
Drawings
Fig. 1 is a schematic structural diagram of a floor heating system provided by an embodiment of the invention;
FIG. 2 is a block diagram illustrating a flow chart of an anti-freeze method provided by an embodiment of the present invention;
FIG. 3 is a block diagram illustrating a flow of substeps of step S102 of FIG. 2;
fig. 4 is a schematic block diagram illustrating a flow of sub-steps of step S103 in fig. 2.
Description of reference numerals:
100-a floor heating system; 110-a controller; 120-a floor heating device; 130-a water storage pipeline; 131-a first control valve; 133-a pumping device; 135-a second control valve; 137-a filter device; 140-a water return pipeline; 141-a first branch section; 143-a second branch section; 145-a third control valve; 147-a fourth control valve; 149-water pressure detection means; 150-a drain line; 151-fifth control valve; 160-water supplement pipeline; 161-a sixth control valve; 170-a water storage tank; 171-water level detection means.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a floor heating system 100 provided in an embodiment of the present invention, and the floor heating system 100 provided in the embodiment of the present invention has the characteristics of energy consumption saving and high automation degree.
In the embodiment of the present invention, the floor heating system 100 includes a controller 110, a floor heating device 120, a water storage pipeline 130, a water return pipeline 140, a water drainage pipeline 150, a water replenishing pipeline 160, and a water storage tank 170. The respective one ends of the water storage pipeline 130 and the water return pipeline 140 are connected with the water storage tank 170, the respective other ends are connected with the floor heating device 120, the water storage tank 170 is selectively communicated with the outside through the water discharge pipeline 150, the water storage tank 170 is externally connected with a water source through the water supplement pipeline 160, and the controller 110 is electrically connected with the floor heating device 120, the water storage pipeline 130, the water return pipeline 140, the water discharge pipeline 150 and the water supplement pipeline 160 respectively.
In practical application, when the floor heating device 120 is in a low-temperature environment for a long time and is not used, the controller 110 controls to close the floor heating device 120, and then controls the water storage pipeline 130 to convey water in the floor heating device 120 into the water storage tank 170 for storage, so that the floor heating device 120 is protected from freezing. When the floor heating device 120 needs to be used, that is, the floor heating system 100 needs to be started for heating, the controller 110 controls the water return pipeline 140 to convey water stored in the water storage tank 170 to the floor heating device 120, and then controls to open the floor heating device 120, so that the normal work of the floor heating device 120 is ensured. It will be appreciated that in order to prevent the water stored in the storage tank 170 from freezing, the storage tank 170 is provided with an insulation layer.
It should be noted that the water storage pipeline 130 and the water return pipeline 140 may be the same pipeline, for example, the same pipeline provided with a bidirectional pump can pump the water in the floor heating device 120 into the water storage tank 170 in the forward direction under the control of the controller 110, and can also pump the water stored in the water storage tank 170 back to the floor heating device 120 in the reverse direction.
In this embodiment, the water storage pipeline 130 is respectively provided with a first control valve 131, a pumping device 133 and a second control valve 135, the pumping device 133 may adopt a common water pump, and the pumping device 133 is disposed between the first control valve 131 and the second control valve 135. Compared to the first control valve 131, the second control valve 135 is closer to the water storage tank 170 along the extending direction of the water storage pipeline 130, i.e. the second control valve 135 is disposed at one end of the water storage pipeline 130 connected to the water storage tank 170.
The first control valve 131, the pumping device 133 and the second control valve 135 are respectively electrically connected with the controller 110, and the controller 110 is used for controlling the first control valve 131 and the second control valve 135 to be opened and controlling the pumping device 133 to be started after the floor heating device 120 is controlled to be stopped when the water storage and anti-freezing conditions are met, so that water in the floor heating device 120 is input into the water storage tank 170.
In this embodiment, the water storage anti-freezing conditions include two aspects of active anti-freezing and automatic anti-freezing, and the active anti-freezing conditions are as follows: the controller 110 receives a water storage freeze prevention command input by a user. That is, when the user does not use the floor heating device 120 for heating for a long time and the environment temperature is low, the user inputs a preset water storage anti-freezing instruction to the controller 110 to perform water storage anti-freezing.
The automatic antifreezing conditions are as follows: the times of starting and preventing the floor heating device 120 from freezing in the standby state within the preset time period exceed the preset times, and after the preset time period, the floor heating device 120 is started and prevented from freezing at least once. That is, the controller 110 monitors the working state of the floor heating device 120 in real time, when it is detected that the floor heating device 120 is always in a standby unused state, the floor heating device is automatically started and prevented from freezing for a plurality of times within a preset time period, and after the preset time period is exceeded, the floor heating device 120 is still in a standby state and is started and prevented from freezing, and it is determined that the floor heating device 120 is in a low-temperature unused state for a long time and needs to store water and prevent freezing. In this embodiment, the preset time period is 24 hours, and the preset times are 3 times, and in other embodiments, the preset time period and the preset times may also be adjusted according to the actual application environment.
In practical application, when any one of the two conditions of active anti-freezing and automatic anti-freezing is satisfied, the controller 110 controls the floor heating device 120 to stop, then controls the first control valve 131 and the second control valve 135 to open, and controls the pumping device 133 to start, so as to input water in the floor heating device 120 into the water storage tank 170 for water storage and anti-freezing.
In this embodiment, the water return pipeline 140 includes a first branch section 141 and a second branch section 143, one end of the first branch section 141 is connected to the pipeline between the first control valve 131 and the pumping device 133, the other end of the first branch section 141 is connected to the water storage tank 170, one end of the second branch section 143 is connected between the pumping device 133 and the second control valve 135, and the other end of the second branch section 143 is connected to the floor heating device 120. It can be understood that the first branch section 141 and the second branch section 143 are communicated through the pumping device 133, that is, the water storage pipeline 130 and the water return pipeline 140 share the pumping device 133, so as to achieve the purposes of simplifying the pipeline layout and facilitating the coordination control.
The first branch section 141 is provided with a third control valve 145, the second branch section 143 is provided with a fourth control valve 147, and the third control valve 145 and the fourth control valve 147 are electrically connected to the controller 110, respectively. In practical application, the controller 110 controls the first control valve 131, the second control valve 135, the third control valve 145, the fourth control valve 147 and the pumping device 133 cooperatively to realize respective control of water storage, freezing prevention and water return of the floor heating device 120.
When the preset water storage and anti-freezing conditions are met, the controller 110 controls the first control valve 131 and the second control valve 135 to be opened, controls the third control valve 145 and the fourth control valve 147 to be closed, controls the pumping device 133 to be started after controlling the floor heating device 120 to be shut down, and pumps the water in the floor heating device 120 into the water storage tank 170 through the first control valve 131 and the second control valve 135 in sequence by the pumping device 133 to be stored.
When the preset starting-up heating condition is met, the controller 110 controls the first control valve 131 and the second control valve 135 to close, controls the third control valve 145 and the fourth control valve 147 to open, controls the pumping device 133 to start up, and controls the pumping device 133 to pump the water stored in the water storage tank 170 to the floor heating device 120 through the third control valve 145 and the fourth control valve 147 in sequence, and then controls the floor heating device 120 to start up to normally heat and heat. In this embodiment, the startup heating condition is that the controller 110 receives a startup heating instruction input by a user, and in other embodiments, the startup heating control may be automatically performed when the controller 110 detects that a plurality of preset conditions are satisfied.
The water storage tank 170 is provided with a water level detection device 171, the water level detection device 171 is electrically connected to the controller 110, and the controller 110 is further configured to control the water discharge pipeline 150 to discharge water in the water storage tank 170 to the outside when the water level detection device 171 detects that the water level in the water storage tank 170 reaches a first preset water level, so as to maintain the water level in the water storage tank 170 at the first preset water level. Because the water storage capacity of the water storage tank 170 is limited, the water level of the water storage tank 170 is monitored by the water level detection device 171, so that the situation that the conveying amount exceeds the upper limit of the water storage capacity of the water storage tank 170 in the process of conveying water in the floor heating device 120 into the water storage tank 170 for storage is avoided, and the smooth proceeding of the water storage anti-freezing process is ensured.
The controller 110 is further configured to control the water replenishing pipe 160 to introduce external water into the water storage tank 170 when the water level detecting device 171 detects that the water level in the water storage tank 170 is lower than a second preset water level, so as to maintain the water level in the water storage tank 170 at the second preset water level, where the first preset water level is higher than the second preset water level. That is, the first water level of presetting is the upper water level of storage water tank 170, and the second water level of presetting is the lower water level of storage water tank 170, monitors the lower water level of storage water tank 170 through water level detection device 171, prevents that the water level of storage water tank 170 is low excessively and influence ground heating apparatus 120 return water to guarantee that follow-up can carry out normal moisturizing to ground heating apparatus 120.
One end of the water return pipeline 140, which is connected with the floor heating device 120, is provided with a water pressure detection device 149, the water pressure detection device 149 is electrically connected with the controller 110, the water pressure detection device 149 is used for detecting the water pressure in the floor heating device 120, the controller 110 is further used for controlling the water storage pipeline 130 to stop conveying the water in the floor heating device 120 to the water storage tank 170 according to the detection result of the water pressure detection device 149, and the controller 110 is further used for controlling the water return pipeline 140 to stop conveying the water in the water storage tank 170 to the floor heating device 120 according to the detection result of the water pressure detection device 149. It should be noted that, in other embodiments, the water pressure detecting device 149 may also be disposed at one end of the water storage pipeline 130 connected to the floor heating device 120, or directly disposed inside the floor heating device 120, so as to detect the water pressure in the floor heating device 120.
In this embodiment, the control of the water storage and water return process is realized by monitoring the water pressure in the floor heating device 120, and then the automatic control is realized. For example, a first preset pressure and a second preset pressure are preset respectively, the first preset pressure represents that the water amount in the floor heating system 100 meets the anti-freezing requirement, the second preset pressure represents that the water amount in the floor heating system 100 meets the normal heating requirement, and the first preset pressure is lower than the second preset pressure. When the water pressure detecting device 149 detects that the water pressure in the floor heating system 100 is reduced to a first preset pressure, the controller 110 controls to close the pumping device 133, and controls to close the first control valve 131 and the second control valve 135; when the water pressure detecting device 149 detects that the water pressure in the floor heating system 100 rises to a second preset pressure, the controller 110 controls to turn off the pumping device 133 and controls to turn off the third control valve 145 and the fourth control valve 147.
The water storage line 130, the water return line 140, and the water replenishing line 160 are provided with the filter device 137, the water discharge line 150 is provided with the fifth control valve 151, the water replenishing line 160 is provided with the sixth control valve 161, and the fifth control valve 151 and the sixth control valve 161 are electrically connected to the controller 110, respectively. The water storage pipeline 130, the water return pipeline 140 and the water replenishing pipeline 160 are respectively provided with the filtering device 137, the floor heating device 120 is protected, impurities in an external water source are prevented from being input into the floor heating device 120, the controller 110 controls the fifth control valve 151 to be opened and closed, automatic control over water discharging of the water storage tank 170 is achieved, and automatic control over water replenishing of the water storage tank 170 is achieved by controlling the sixth control valve 161 to be opened and closed.
According to the floor heating system 100 provided by the embodiment of the invention, water in the floor heating device 120 is conveyed into the water storage tank 170 through the water storage pipeline 130 for storage, so that the floor heating device 120 is protected from freezing, the water stored in the water storage tank 170 is conveyed back to the floor heating device 120 through the water return pipeline 140, so that automatic water supplement for the floor heating device 120 is realized, and the normal work of the floor heating device 120 is ensured.
Fig. 2 is a schematic block diagram illustrating a flow of an anti-freezing method applied to the floor heating system 100 according to an embodiment of the present invention, and please refer to fig. 2, the anti-freezing method includes:
and S101, controlling the floor heating device 120 to stop when a preset water storage anti-freezing condition is met.
In this embodiment, the water storage anti-freezing conditions include two conditions of active anti-freezing and automatic anti-freezing, and the active anti-freezing conditions are as follows: the controller 110 receives a water storage freeze prevention command input by a user. The automatic antifreezing conditions are as follows: the times of starting and preventing the floor heating device 120 from freezing in the standby state within the preset time period exceed the preset times, and after the preset time period, the floor heating device 120 is started and prevented from freezing at least once. In this embodiment, the preset time period is 24 hours, and the preset times are 3 times, and in other embodiments, the preset time period and the preset times may also be adjusted according to the actual application environment.
In practical application, the two conditions of active anti-freezing and automatic anti-freezing can meet one of the two conditions, and the controller 110 controls the floor heating device 120 to stop, so that the floor heating device 120 is prevented from being started for multiple times and being prevented from being too much in energy consumption. After the controller 110 controls the floor heating device 120 to stop, the subsequent water storage and freeze prevention are prepared.
Further, the anti-freezing method can also comprise the following steps:
step S102, controlling the water storage pipeline 130 to input the water in the floor heating device 120 into the water storage tank 170 for storage.
After controlling the floor heating device 120 to stop, the controller 110 controls the first control valve 131 and the second control valve 135 arranged on the water storage pipeline 130 to open, controls the pumping device 133 to start up, and pumps the water in the floor heating device 120 into the water storage tank 170 for storage through the first control valve 131 and the second control valve 135 in sequence. In this process, the third control valve 145 and the fourth control valve 147 provided on the return line 140 are kept closed.
The water in the floor heating device 120 is conveyed into the water storage tank 170 through the water storage pipeline 130 for storage, so that the water storage and the freezing prevention of the floor heating device 120 are realized.
Fig. 3 is a schematic block diagram illustrating a flow of sub-steps of step S102, and referring to fig. 3, step S102 may include:
in the sub-step S1021, the water storage pipeline 130 is controlled to transport the water in the floor heating device 120 to the water storage tank 170.
In the sub-step S1022, when the water pressure in the heating apparatus 120 is lower than the first preset pressure, the water storage line 130 is controlled to stop delivering the water.
The water pressure detection device 149 arranged at one end of the water return pipeline 140 connected with the floor heating device 120 feeds back the detected water pressure data in the floor heating device 120 to the controller 110, and the controller 110 compares the received water pressure data with a first preset pressure. When the water pressure data is lower than the first preset pressure, it is determined that the amount of water remaining in the floor heating device 120 meets the anti-freezing requirement, and at this time, the controller 110 controls the pumping device 133 to stop and controls the first control valve 131 and the second control valve 135 to close.
In the sub-step S1023, when the water level in the water storage tank 170 reaches the first preset water level, the water drain line 150 is controlled to drain the water in the water storage tank 170 to the outside so as to maintain the water level in the water storage tank 170 at the first preset water level.
The water level detection device 171 disposed on the water storage tank 170 feeds back the detected water level data in the water storage tank 170 to the controller 110, and the controller 110 compares the received water level data with a first preset water level. When the water level data reaches the first preset water level, it is determined that the amount of water stored in the water storage tank 170 is about to exceed the limit, and the controller 110 controls the fifth control valve 151 provided on the drain line 150 to be opened, so that the water level in the water storage tank 170 is maintained at the first preset water level.
It is understood that there is no sequential execution order between sub-step S1022 and sub-step S1023.
With continuing reference to fig. 2, the anti-freeze method may further include:
in step S103, when the preset startup heating condition is met, the water return pipeline 140 is controlled to input the water stored in the water storage tank 170 into the floor heating device 120.
In this embodiment, the startup heating condition is that the controller 110 receives a preset startup heating instruction input by a user.
Fig. 4 is a schematic block diagram illustrating a flow of sub-steps of step S103, and referring to fig. 4, step S103 may include:
and a substep S1031 of controlling the water return pipe 140 to transfer the water stored in the water storage tank 170 to the floor heating device 120.
In the sub-step S1032, when the water pressure in the heater 120 reaches the second preset pressure, the water return pipe 140 is controlled to stop the transmission.
It can be understood that the second preset pressure is greater than the first preset pressure, and when the controller 110 compares the water pressure data fed back by the water pressure detection device 149 to reach the second preset pressure, it is determined that the water amount of the floor heating device 120 meets the requirement of normal heating, at this time, the controller 110 controls the pumping device 133 to stop, and controls the third control valve 145 and the fourth control valve 147 to close.
In the sub-step S1033, when the water level in the water storage tank 170 is lower than the second preset water level, the water replenishing pipe 160 is controlled to introduce external water into the water storage tank 170 so as to maintain the water level in the water storage tank 170 at the second preset water level.
It can be understood that the second preset water level is lower than the first preset water level, during the process of conveying the water in the water storage tank 170 back to the floor heating device 120, the water level in the water storage tank 170 is gradually reduced, for ensuring that the water return process of the floor heating device 120 is smoothly performed, when the water level data fed back by the water level detection device 171 is lower than the second preset water level, the sixth control valve 161 arranged on the control water replenishing pipeline 160 is opened, the water is replenished to the water storage tank 170 through the external water source, so that the water level of the water storage tank 170 is maintained at the second preset water level.
It is understood that there is no sequential order of execution between substep S1032 and substep S1033.
With continuing reference to fig. 2, the anti-freeze method may further include:
and step S104, controlling the floor heating device 120 to be started.
After the water return process of the floor heating device 120 is completed, the controller 110 controls the floor heating device 120 to start up, so that normal heating can be realized to meet the user requirements.
Further, the anti-freezing method can also comprise the following steps:
step S105, when the water pressure in the floor heating device 120 is lower than a third preset pressure, controlling the water return pipeline 140 to input the water stored in the water storage tank 170 into the floor heating device 120 until the water pressure in the floor heating device 120 reaches the third preset pressure.
In this embodiment, the third preset pressure is equal to the second preset pressure. After the return water to the floor heating device 120 is performed through the sub-step S1032, the water pressure in the floor heating device 120 meets the normal working requirement. However, after the floor heating device 120 is used for a period of time, the air originally existing in the floor heating device 120 is discharged when passing through a gas wall-mounted boiler or a water pump, and the water pressure in the floor heating device 120 is reduced. In addition, the floor heating device 120 may also have other conditions that cause water pressure to drop, such as water leakage. The water pressure in the floor heating device 120 is lower than the second preset pressure, that is, the third preset pressure after the water pressure in the floor heating device 120 is reduced, at this time, the controller 110 controls the pumping device 133 to start, and controls the third control valve 145 and the fourth control valve 147 to open, so that instant water supplement to the floor heating device 120 is realized, and the normal work of the floor heating device 120 is ensured.
The anti-freezing method provided by the embodiment of the invention has the characteristics of energy consumption saving and high automation degree, realizes energy saving and anti-freezing of the floor heating device 120 intelligently, can prolong the service life of the floor heating device 120, and can greatly improve the user experience.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. An anti-freezing method is characterized by being applied to a floor heating system (100), wherein the floor heating system (100) comprises a floor heating device (120), a water storage pipeline (130), a water return pipeline (140) and a water storage tank (170); a first control valve (131), a pumping device (133) and a second control valve (135) are respectively arranged on the water storage pipeline (130), the pumping device (133) is arranged between the first control valve (131) and the second control valve (135), one end of the water storage pipeline (130) close to the first control valve (131) is connected with the floor heating device (120), and one end of the water storage pipeline close to the second control valve (135) is connected with the water storage tank (170); the water return pipeline (140) comprises a first branch section (141) and a second branch section (143), one end of the first branch section (141) is connected to a pipeline between the first control valve (131) and the pumping device (133), the other end of the first branch section (141) is connected with the water storage tank (170), one end of the second branch section (143) is connected between the pumping device (133) and the second control valve (135), the other end of the second branch section (143) is connected with the floor heating device (120), the first branch section (141) is provided with a third control valve (145), and the second branch section (143) is provided with a fourth control valve (147); the anti-freezing method comprises the following steps:
when the preset water storage and anti-freezing conditions are met, the floor heating device (120) is controlled to stop;
controlling the first control valve (131) and the second control valve (135) to be opened, controlling the third control valve (145) and the fourth control valve (147) to be closed, and controlling the pumping device (133) to be started so as to input water in the floor heating device (120) into the water storage tank (170) for storage;
when a preset starting-up heating condition is met, controlling the first control valve (131) and the second control valve (135) to be closed, controlling the third control valve (145) and the fourth control valve (147) to be opened, and controlling the pumping device (133) to be started so as to input water stored in the water storage tank (170) into the floor heating device (120);
and controlling the floor heating device (120) to be started.
2. The anti-freezing method as claimed in claim 1, wherein the steps of controlling the first control valve (131) and the second control valve (135) to be opened, controlling the third control valve (145) and the fourth control valve (147) to be closed, and controlling the pumping device (133) to be activated so as to input water in the floor heating device (120) into the water storage tank (170) for storage comprise:
controlling the first control valve (131) and the second control valve (135) to be opened, controlling the third control valve (145) and the fourth control valve (147) to be closed, and controlling the pumping device (133) to be started;
when the water pressure in the floor heating device (120) is lower than a first preset pressure, the pumping device (133) is controlled to be stopped, and the first control valve (131) and the second control valve (135) are controlled to be closed.
3. Anti-freezing method as claimed in claim 2, characterized in that said floor heating system (100) further comprises a drain line (150), said water storage tank (170) is selectively communicated with the outside through said drain line (150), and after said steps of controlling said first control valve (131) and said second control valve (135) to be opened, controlling said third control valve (145) and said fourth control valve (147) to be closed, and controlling said pumping device (133) to be activated, further comprises:
when the water level in the water storage tank (170) reaches a first preset water level, controlling the drainage pipeline (150) to drain the water in the water storage tank (170) to the outside so as to keep the water level in the water storage tank (170) at the first preset water level.
4. The anti-freezing method as claimed in claim 1, wherein the step of controlling the first control valve (131) and the second control valve (135) to close, controlling the third control valve (145) and the fourth control valve (147) to open, and controlling the pumping device (133) to activate to input the water stored in the water storage tank (170) into the floor heating device (120) when a preset startup heating condition is satisfied comprises:
controlling the first control valve (131) and the second control valve (135) to be closed, controlling the third control valve (145) and the fourth control valve (147) to be opened, and controlling the pumping device (133) to be started;
when the water pressure in the floor heating device (120) reaches a second preset pressure, controlling the pumping device (133) to stop, and controlling the third control valve (145) and the fourth control valve (147) to close.
5. The antifreeze method as set forth in claim 4, wherein the floor heating system (100) further comprises a water supply pipeline (160), the water storage tank (170) is externally connected with a water source through the water supply pipeline (160), and after the steps of controlling the first control valve (131) and the second control valve (135) to be closed, controlling the third control valve (145) and the fourth control valve (147) to be opened, and controlling the pumping device (133) to be activated, the antifreeze method further comprises:
when the water level in the water storage tank (170) is lower than a second preset water level, controlling the water supplementing pipeline (160) to input outside water into the water storage tank (170) so as to keep the water level in the water storage tank (170) at the second preset water level.
6. The antifreeze method as set forth in claim 1, wherein after said step of controlling the floor heating device (120) to be turned on, the antifreeze method further comprises:
when water pressure in the floor heating device (120) is lower than a third preset pressure, the first control valve (131) and the second control valve (135) are controlled to be closed, the third control valve (145) and the fourth control valve (147) are controlled to be opened, the pumping device (133) is controlled to be started, water stored in the water storage tank (170) is input into the floor heating device (120), and until the water pressure in the floor heating device (120) reaches the third preset pressure.
7. The antifreeze method according to any one of claims 1 to 6, wherein the water storage antifreeze conditions include:
receiving a water storage anti-freezing instruction input by a user, or enabling the number of times of starting and anti-freezing of the floor heating device (120) in a standby state in a preset time period to exceed a preset number of times, and after the preset time period, enabling the floor heating device (120) to be started and anti-freezing at least once.
8. The floor heating system is characterized by comprising a controller (110), a floor heating device (120), a water storage pipeline (130), a water return pipeline (140) and a water storage tank (170), wherein one end of each of the water storage pipeline (130) and the water return pipeline (140) is connected with the water storage tank (170), and the other end of each of the water storage pipeline (130) and the water return pipeline is connected with the floor heating device (120);
the water storage pipeline (130) is respectively provided with a first control valve (131), a pumping device (133) and a second control valve (135), the pumping device (133) is arranged between the first control valve (131) and the second control valve (135), and the second control valve (135) is closer to the water storage tank (170) than the first control valve (131);
the water return pipeline (140) comprises a first branch section (141) and a second branch section (143), one end of the first branch section (141) is connected to a pipeline between the first control valve (131) and the pumping device (133), the other end of the first branch section (141) is connected with the water storage tank (170), one end of the second branch section (143) is connected between the pumping device (133) and the second control valve (135), the other end of the second branch section (143) is connected with the floor heating device (120), the first branch section (141) is provided with a third control valve (145), and the second branch section (143) is provided with a fourth control valve (147);
the controller (110) is respectively electrically connected with the first control valve (131), the pumping device (133), the second control valve (135), the third control valve (145) and the fourth control valve (147), the controller (110) is used for controlling the first control valve (131) and the second control valve (133) to be opened, controlling the third control valve (145) and the fourth control valve (147) to be closed and controlling the pumping device (133) to be started when a water storage anti-freezing condition is met, and the controller (110) is also used for controlling the first control valve (131) and the second control valve (133) to be closed, controlling the third control valve (145) and the fourth control valve (147) to be opened and controlling the pumping device (133) to be started when a preset startup heating condition is met.
9. The floor heating system according to claim 8, characterized in that a water pressure detection device (149) is arranged at one end of the water return pipeline (140) connected with the floor heating device (120), the water pressure detection device (149) is electrically connected with the controller (110), the water pressure detection device (149) is used for detecting water pressure in the floor heating device (120), the controller (110) is further used for controlling the water storage pipeline (130) to stop conveying water in the floor heating device (120) to the water storage tank (170) according to a detection result of the water pressure detection device (149), and the controller (110) is further used for controlling the water return pipeline (140) to stop conveying water in the water storage tank (170) to the floor heating device (120) according to a detection result of the water pressure detection device (149).
10. The floor heating system according to claim 8, characterized in that the floor heating system (100) further comprises a drain pipe (150), the water storage tank (170) is selectively communicated with the outside through the drain pipe (150), the water storage tank (170) is provided with a water level detection device (171), the drain pipe (150) and the water level detection device (171) are respectively electrically connected with the controller (110), and the controller (110) is further configured to control the drain pipe (150) to drain the water in the water storage tank (170) to the outside when the water level detection device (171) detects that the water level in the water storage tank (170) reaches a first preset water level, so that the water level in the water storage tank (170) is maintained at the first preset water level.
11. The floor heating system according to claim 10, wherein the floor heating system (100) further comprises a water supply pipeline (160), the water storage tank (170) is externally connected with a water source through the water supply pipeline (160), the water supply pipeline (160) is electrically connected with the controller (110), and the controller (110) is further configured to control the water supply pipeline (160) to input external water into the water storage tank (170) when the water level detection device (171) detects that the water level in the water storage tank (170) is lower than a second preset water level, so that the water level in the water storage tank (170) is maintained at the second preset water level, and the first preset water level is higher than the second preset water level.
12. The floor heating system of claim 11, wherein a filtering device (137) is disposed on each of the water storage pipeline (130), the water return pipeline (140) and the water supplement pipeline (160), a fifth control valve (151) is disposed on the water discharge pipeline (150), a sixth control valve (161) is disposed on the water supplement pipeline (160), and the fifth control valve (151) and the sixth control valve (161) are electrically connected to the controller (110) respectively.
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| CN207163013U (en) * | 2017-09-01 | 2018-03-30 | 上海锐服环境科技有限公司 | Air source ground heating air conditioner hot-water heating system |
| CN108131708A (en) * | 2018-03-02 | 2018-06-08 | 睢宁县嘉川电子科技有限公司 | A kind of liquid energy ground warm device |
| CN108952806A (en) * | 2018-09-07 | 2018-12-07 | 铁科创恒新材料科技有限公司 | High and cold tunnel in cold regions water-drainage antifreezing integrated system |
| CN111189098A (en) * | 2020-01-13 | 2020-05-22 | 欧贝多物联科技(嵊州)有限公司 | Intelligent heating hydraulic module |
| CN111174429A (en) * | 2020-03-10 | 2020-05-19 | 青岛海信日立空调系统有限公司 | Heat pump water heater |
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Effective date of registration: 20221008 Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315000 No.1166 Mingguang North Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Patentee before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |
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