WO2006116924A1 - Procédé de contrôle de courant d’eau automatique pour chauffe-eau et chauffe-eau - Google Patents

Procédé de contrôle de courant d’eau automatique pour chauffe-eau et chauffe-eau Download PDF

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Publication number
WO2006116924A1
WO2006116924A1 PCT/CN2006/000828 CN2006000828W WO2006116924A1 WO 2006116924 A1 WO2006116924 A1 WO 2006116924A1 CN 2006000828 W CN2006000828 W CN 2006000828W WO 2006116924 A1 WO2006116924 A1 WO 2006116924A1
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WO
WIPO (PCT)
Prior art keywords
water
valve
pipe
expansion device
control
Prior art date
Application number
PCT/CN2006/000828
Other languages
English (en)
Chinese (zh)
Inventor
Guanghai Mai
Original Assignee
Guanghai Mai
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 200510071531 external-priority patent/CN1715804A/zh
Priority claimed from CN 200510071524 external-priority patent/CN1715803A/zh
Application filed by Guanghai Mai filed Critical Guanghai Mai
Publication of WO2006116924A1 publication Critical patent/WO2006116924A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F24H9/136—Arrangement of inlet valves used therewith

Definitions

  • the invention relates to a water heater, in particular to an automatic water flow control method for a water heater and a water heater. Background technique
  • the water supply system of the closed storage water heater for the existing family or hotel room includes a water tank, a water supply cold water pipe, a safety valve, a water outlet hot water pipe and a water outlet valve, wherein the water supply cold water pipe connects the water tank with the water pipe and the water outlet hot water pipe Connect the water tank and the water outlet valve.
  • the water tank contains hot water.
  • the hot water is heated by the heating element (such as the electric heating tube, the electromagnetic field eddy current heating body, the principle of using the electromagnetic cooker, the microwave generator - the principle of using the ⁇ ⁇ wave furnace Heating water, heat pump heating system - reverse operation of refrigeration system from heat absorption in the air, solar collector) heating; in normal state, water pipe, water tank, water outlet hot water pipe, water outlet valve (or The mixing valve) constitutes an enclosed body, and the outlet hot water pipe can be connected with a plurality of outlet valves (or mixing valves) to achieve central water control; when used, the outlet valve (or mixing valve) is opened, and the hot water in the water tank The water pressure of the water tank is controlled by the water pressure in the water pipe.
  • the heating element such as the electric heating tube, the electromagnetic field eddy current heating body, the principle of using the electromagnetic cooker, the microwave generator - the principle of using the ⁇ ⁇ wave furnace Heating water, heat pump heating system - reverse operation of refrigeration system from heat absorption in the air, solar collector
  • the maximum static water pressure of the water, the operating pressure of the safety setting is generally 0. 7MPa, but when the water heater is heated, the internal pressure of the water tank increases due to the increase of the water temperature until the safety valve opens to relieve the pressure, so the water tank of the closed water heater
  • the long-term work is at a high pressure of 0.7 MPa; therefore, the closed-type water heater can realize long-distance central water control, but because the water tank is subjected to high temperature and high pressure for a long time, the water tank material is thick and expensive, and the metal water tank is high.
  • the object of the present invention is to solve the problems of high cost, short life, low reliability in the existing closed water storage water heater or the problem that the central water supply cannot be realized in the existing open water heater, and provide a structure.
  • Water flow automatic control method and water heater for water heaters that are simple, easy to use, and long in life.
  • a water flow automatic control method for a water heater comprising a water tank, a hot water pipe, a water outlet valve, a water pipe and a water supply pipe, wherein the water supply pipe supplies cold water to the water tank, and the hot water pipe is taken out from the water tank.
  • Hot water which is characterized by:
  • the water inlet of the water outlet valve is connected with a connecting pipe, and a control valve for preventing the water in the connecting pipe from flowing to the hot water pipe is connected between the connecting pipe and the hot water pipe outlet, and a water control expansion device is connected between the connecting pipe and the water pipe, and the connecting pipe a normally closed water supply valve is connected between the water supply pipe or the inner cavity of the water control expansion device and the water supply pipe;
  • a normally open overflow valve is connected between the water tank and the overflow pipe, and the highest point of the overflow passage formed between the overflow valve and the overflow pipe is close to or higher than the highest point of the water tank;
  • the inlet pipe is provided with a water inlet valve on the passage of the water control expansion device, and the state of the water inlet valve is divided into an open state and a slightly open state;
  • the water supply valve, the overflow valve and the inlet valve are controlled by the expansion wall of the water-controlled expansion device;
  • the control threshold door is controlled by the water pressure or controlled by the control rod of the water outlet valve or controlled by the expansion wall of the water control expansion device, and the expansion wall control of the water control expansion device controls the action of the valve switching,
  • the inlet valve is in a slightly open state;
  • the water control expansion device contracts, and the operation sequence of controlling the water supply valve, the overflow valve and the water inlet valve when the expansion wall of the water control expansion device moves inward is: first closing the overflow valve and The water supply valve is opened, and finally the inlet valve is opened; when the water outlet valve is closed, the water control expansion device is expanded, and the operation sequence of controlling the water supply valve, the overflow valve and the inlet valve when the expansion wall of the water control expansion device moves outward is: First, let the inlet valve enter the micro-opening state, then close the water supply valve and open the overflow valve.
  • the water flow automatic control method of the water heater is characterized in that a normally closed water supply gate is connected between the inner cavity of the water control expansion device and the water supply pipe, and the water control expansion device and the connection pipe are provided with normally open water control a valve, the water control valve being controlled by an expansion wall of the expansion device; when the water discharge valve is opened, the water control expansion device is contracted, and the water supply valve and the overflow valve are controlled when the expansion wall of the water control expansion device moves inward
  • the operation sequence of the water control valve and the water inlet valve is as follows: first close the overflow valve and open the water supply valve, close the water control valve, and finally make the inlet valve enter the open state; when the outlet valve is closed, the water control expansion device expands, the water control expands When the expansion wall of the device moves outward, the operation sequence of controlling the water supply valve, the overflow valve, the water control valve and the water inlet valve is as follows: first, the inlet valve is opened to the micro-open state, the water supply valve is closed, the overflow valve
  • the water control valve can only be disposed between the inner cavity of the water control expansion device and the water supply pipe, and cannot be disposed between the connection pipe and the water supply pipe.
  • the advantage is that the water outlet valve can be opened to make the water heater in a normal water discharge state, and the water can be ensured.
  • the valve only has hot water entering from the hot water pipe, and there is no cold water in the pipe to enter the outlet valve.
  • the water flow automatic control method of the water heater is characterized in that the water control expansion device is composed of a valve body and a piston, and a pressure spring is arranged between the piston and the valve body to cause the piston to receive an inward pressure, the piston and the piston A sealing ring is disposed between the valve body chambers, and the piston is the expansion wall.
  • the seal has a "U" shape and opens into the body cavity of the valve.
  • the water flow automatic control method of the water heater is characterized in that the overflow valve or the water supply valve or the control valve is an electric control valve, and the electric control valve is controlled by an electric switch, and the action of the electric switch is controlled by the expansion wall of the water control expansion device And the expansion wall of the water control expansion device controls the moment when the electrical switch action is switched, and the water inlet valve is in a slightly open state.
  • the overflow valve and the water supply valve and control valve can also be integrated in the same electronically controlled valve.
  • the water flow automatic control method of the water heater is characterized in that a water blocking block is arranged in the water control expansion device, and the water inlet block of the water blocking block and the 7-controlled expansion device constitutes the water inlet valve, and the water blocking block moves to block the water When the water inlet of the expansion device is controlled, the gap between the water blocking block and the ice inlet of the water control expansion device constitutes four open states of the water inlet valve.
  • the water heater using the water flow automatic control method of the water heater of the invention comprises a water tank, a heating element, a hot water pipe, a water outlet valve, a water pipe and a water supply pipe, wherein the water supply pipe supplies cold water to the water tank, and the hot water pipe extracts hot water from the water tank
  • the heating element may be an electric heating tube, a electromagnetic field eddy current heating body, a microwave generator, a heat pump type heating system, and a solar collector, wherein the water inlet valve of the outlet valve is connected with a connecting pipe, the connecting pipe and the hot water pipe outlet.
  • a control valve for preventing the water in the connecting pipe from flowing to the hot water pipe, and a water-controlled expansion device is connected between the connecting pipe and the water pipe, and the connection between the connecting pipe and the water supply pipe or between the inner cavity of the water-controlled expansion device and the water supply pipe is infrequent Closed water supply valve; a normally open overflow valve is connected between the water tank and the overflow pipe.
  • the highest point of the overflow passage formed by the overflow valve and the overflow pipe is close to or higher than the highest point of the water tank (for ease of installation, the overflow valve can be connected to the water supply pipe) Between the overflow pipe and the overflow channel formed between the water supply pipe, the overflow valve and the overflow pipe, the highest point is close to or higher than the water.
  • an inlet valve is provided on the passage of the water pipe to the water-controlled expansion device, and the opening of the inlet valve is divided into an open state section and a micro-open state section; the water supply valve, the overflow valve and the inlet valve are subjected to The expanded wall of the water-controlled expansion device is controlled, and at the moment when the operation of the water supply valve and the overflow valve is switched, the inlet valve is in a slightly open state. In the normal state, the inlet valve is in the micro-open state or closed state. If the inlet valve is in the micro-open state during normal state, the pressure-resistant value of the water-controlled expansion device must be greater than the maximum pressure of the tap water, and the inlet valve is open.
  • the inlet flow rate of the section is larger than the micro-opening state section, and the restoring force of the expansion wall can be regarded as a constant value.
  • the expansion wall controls the opening of the inlet valve to decrease, and vice versa.
  • the opening of the valve is increased, so that when the inlet valve enters the open state, the water pressure in the water-controlled expansion device is constant within a certain pressure range.
  • the connecting pipe is in communication with the water-controlled expansion device, the water supply valve can also be connected between the water supply pipe and the inner cavity of the water-controlled expansion device.
  • the water heater characterized in that the inlet valve is composed of a valve seat, a stator and a moving piece, and a fixed piece A water leakage joint is arranged on one side of the through hole, and the water inlet groove on the moving piece passes through the through hole of the fixed piece and enters the water leakage joint, which is the micro open state section, and the leakage joint has a section smaller than the section of the through hole of the fixed piece.
  • the water heater is characterized in that the control valve is a one-way valve.
  • the action of the check valve is controlled by water pressure.
  • the water heater is characterized in that the control valve is a normally closed shut-off valve, and the shut-off valve is controlled by the expansion wall of the water-controlled expansion device, and the inlet valve is in a slightly open state at the moment of switching the action of the shut-off valve. segment.
  • the shut-off valve can also be integrated in the above-mentioned switching valve.
  • the water heater is characterized in that the water valve is a mixed water, the connecting pipe is connected to the cold water inlet of the mixing valve, the outlet of the hot water pipe is connected to the hot water inlet of the mixing valve, and the water mixing valve is
  • the hot water valve is the control valve.
  • the existing mixing valve integrates the control valve with the ice-out valve, and the movement of the hot water valve is controlled by the control rod of the mixing valve.
  • the water heater is characterized in that the water supply valve and the overflow valve return to a normal state by a return spring. 7
  • the expansion wall of the control expansion device and the return spring jointly control the water supply valve and the overflow valve.
  • the water heater is characterized in that the water-controlled expansion device is composed of a valve body and a piston, and a pressure spring is arranged between the piston and the valve body to press the piston inward pressure, and a sealing ring is arranged between the piston and the valve body cavity.
  • the piston is the expansion wall.
  • the seal has a cross section and opens into the valve body cavity.
  • the water heater is characterized in that a limit block that defines the outermost displacement of the expansion wall is disposed on the water control expansion device.
  • a limit block that defines the outermost displacement of the expansion wall is disposed on the water control expansion device.
  • the water heater is characterized in that a water blocking block is arranged in the water-controlled expansion device, and a water blocking block of the water blocking block and the water-controlled expansion device constitutes the water inlet valve, and the water blocking block moves to block the water-controlled expansion device.
  • the gap between the water blocking block and the water inlet of the water-controlled expansion device constitutes a slightly open state section of the inlet valve.
  • the outlet valve When hot water is used, the outlet valve is opened, the pressure in the water-controlled expansion device drops, the water-controlled expansion device contracts, and the expansion wall moves inward under the action of the resetting force.
  • the expansion wall draws the inlet valve to be in the micro-open state
  • the movement of the expansion wall causes the overflow valve and the water supply valve to operate, that is, the overflow valve is closed, the water supply valve is opened (if the control valve is a shut-off valve, the shut-off valve is simultaneously opened), and then the inlet valve enters an open state to balance the water-controlled expansion
  • water supply valve, overflow valve (control Valve) reset that is, the water supply valve is closed, the overflow valve is opened (control gate is closed), and then, if the inlet valve is a shut-off valve, then the inlet valve enters the closed state from the micro-open state, if the inlet valve is not a cut-off Valve, the expansion wall is limited to the block position, and the inlet valve is maintained in a slightly open state.
  • the water pressure in the water-controlled expansion device is the same as the water pressure in the water pipe, but the water in the water-controlled expansion device cannot be It communicates with the water tank, but is maintained by the resetting force of the water-controlled expansion device to maintain a certain internal pressure.
  • the water heater enters the standby state—normally, the space inside the water tank communicates with the overflow pipe through the overflow valve, so that the water tank is open to the atmosphere. State.
  • the micro-opening section of the inlet valve is mainly used to ensure that the expansion wall has sufficient displacement to control the action of the overflow valve, the water supply valve and the control valve.
  • the outlet valve is a faucet, you only need to connect several faucets to the connection. If the sputum outlet valve is a mixing valve, you can directly connect multiple external mixing valves.
  • the water heater is characterized in that the connecting pipe is further connected with a normally closed drain valve, and the drain valve is controlled by the expansion wall of the water control expansion device. If the water heater is unable to open the overflow valve due to the water supply valve or the like being stuck in the standby state, the internal pressure of the water control expansion device continues to increase, and the expansion wall controls the discharge valve to open and discharge the water to protect
  • the water tank is an auxiliary structure.
  • the water heater is characterized in that the drain valve is a quick opening delay closing valve. If the water supply valve fails to open the overflow valve during the process from the use state to the standby state, the internal pressure of the water control expansion device continues to increase, and the expansion wall controls the drain valve to open for a period of time, so that the water heater automatically enters a short-time use state. The water supply valve and the inlet valve are reopened to wash away the impurities.
  • the water tank when the water outlet valve is closed, the water tank is open to the atmosphere and the water pipe is not connected, and only when the water is discharged, the water tank is connected with the water pipe, and the water tank only bears much less than 0.
  • the dynamic water pressure of 7Mpa, and this dynamic water pressure can also be decompressed and constant pressure. Even when the water outlet valve is closed, the water pressure of the water pipe will not be transmitted to the water tank. Therefore, the water tank is operated by the original long-term pressure.
  • the system becomes a short-time pressure working system, and the pressure value is low: the pressure standard of the water tank can be lowered, thereby reducing the wall thickness of the water tank and saving cost and resources.
  • the water tank does not need to work in a high pressure state for a long time, is not easily rusted, and extends the water tank.
  • the service life of the water heater is improved.
  • the water heater is in an open state when no water is discharged, the central water supply can also be realized. Therefore, it is not only long-life, safe, but also easy to use and structurally simple.
  • FIG. 1 is a schematic view showing a connection structure and a control principle of an embodiment of the present invention.
  • Figure 2 is an enlarged schematic view showing the internal structure of the water-controlled expansion device of the embodiment of Figure 1.
  • Figure 3 is a schematic view showing the state of the water-controlled expansion device of Figure 2 when the water heater is in use.
  • Fig. 4 is an enlarged plan view showing the inner stator of the switching valve 4 of Fig. 2;
  • Fig. 5 is an enlarged view showing the appearance of the movable piece of the switching valve 4 of Fig. 2.
  • FIG. 6 is a schematic diagram of a connection structure and a control principle according to another embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a connection structure and a control principle according to still another embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a connection structure and a control principle according to still another embodiment of the present invention.
  • Figure 9 is an enlarged schematic view showing the internal structure of the water-controlled expansion device in the embodiment.
  • Fig. 10 is an enlarged perspective view showing the stator of the switching valve 04 of Fig. 9.
  • FIG 11 is an enlarged view of the appearance of the rotor of the switching valve 04 of Figure 9. '
  • FIG. 12 is a schematic diagram of a connection structure and a control principle according to still another embodiment of the present invention.
  • Figure 13 is an enlarged schematic view showing the internal structure of the water-controlled expansion device of Figure 12;
  • Figure 14 is an enlarged plan view showing another structure of the switching valve inner stator of Figure 13;
  • Fig. 15 is a view showing the dotted line 400, 500 of the water inlet and the water supply tank of Fig. 14 rotated by an angle.
  • Embodiment 1 as shown in FIG. 1, a water heater using the water flow automatic control method of the water heater according to the present invention, comprising a water tank 91, a heating element (not shown), a hot water pipe 911, a water mixing valve 92, and an overflow pipe 831, the water pipe 811 and the water supply pipe 821, the hot water inlet of the water mixing valve 92 is connected to the hot water pipe 911, the cold water inlet connecting pipe 901, and the heat between the hot water pipe 911 and the water outlet pipe 921 is set by the mixing valve 92.
  • the water valve is used as a control valve, and the water control expansion device 90 and the water inlet valve 81 are connected between the connection pipe 901 and the water pipe 811, and the normally closed water supply valve 82 is connected between the connection pipe 901 and the water supply pipe 821; the water supply pipe 821 and the overflow water pipe 831
  • the water valve 84 and the switch lever of the water inlet valve 81 are connected to the expansion wall of the water control expansion device (the same applies to the following embodiments); in fact, the overflow valve 83, the water supply valve 82 and the water inlet valve 81 are integrated in one switch.
  • Figure 1 is a schematic diagram for the sake of easy understanding. It is a schematic diagram.
  • the internal structure of the water-controlled expansion device 90 is shown in Figure 2.
  • the valve body 1, the pressure spring 34 and the long wall as the 'expansion J' The piston 3 is configured to form an expansion chamber 10 between the valve body cavity and the piston, the water outlet hole 1 1 of the valve body is connected to the tube 901, and the normally closed inlet valve 81 is connected between the interface 13 and the water pipe 811 (Fig. 1).
  • the expansion chamber 10 is connected to the ice release valve 84 through the branch pipe 65, and the switch rod 61 of the drain valve extends into the notch 71 1 of the damping rod 71 of the damping device; the water blocking block 5, the water inlet hole 12 and the return spring 51 constitute a forward
  • the water valve (hereinafter defined as "inlet valve A") is disposed on the passage of the inlet valve 81 to the water-controlled expansion device 91 (ie, the inlet valve 81 in FIG. 1 is connected in series to the water pipe 811 and the inlet valve A). between).
  • the water supply valve 82, the overflow valve S3 and the water inlet valve 81 in Fig. 1 are integrated in the switching valve 4 of Fig. 2, and the switching valve 4 is provided with a return spring (not shown) to return it to the position shown in Fig. 2.
  • the through hole 481 in the fixed piece 48 of the switching valve shown in FIG. 4 is connected to the water supply pipe 821 and the through hole 482 in FIG. 1 , and the overflow pipe 831 and the through hole 483 in FIG. 1 are connected to the connecting pipe 901 in FIG. 1 .
  • the through hole 484 is connected to the expansion chamber 10 through the inlet hole 13 through the interface 13 in FIG. 1, and the through hole 485 is connected to the water pipe 811 in FIG. 1.
  • the rotor 49 of the switching valve in FIG. 5 faces the stator 48.
  • the side is provided with a water inlet 492 and a water supply tank 91.
  • the water inlet 492 in the rotor and the through holes 484 and 485 in the stator constitute the water inlet valve 81, the water supply tank 491 and the through hole 481 in the stator.
  • 'and 482 constituting the overflow valve 83 in Fig. 1
  • the water supply tank 91 and the through hole 481 and the through hole 483 in the stator constitute the water supply valve 82 in Fig. 1; in this embodiment, the water inlet 492 and the stator of the rotor
  • the inlet valve 81 of Fig. 1 formed by the through holes 484 and 485 has only an open state section and a closed state, and has no micro-open state section.
  • the mixing valve 92 in Fig. 1 When hot water is used, the mixing valve 92 in Fig. 1 is opened, and the water in the expansion chamber 10 in Fig. 2 passes through the water outlet hole 11, the connecting pipe 901 in Fig. 1, and the mixing valve under the action of the pressure spring 34 and the piston 3.
  • the cold water inlet of the 92 and the outlet pipe 921 flow out, and at the same time, the control rod 31 (Fig. 2) connected to the piston moves down, the indenter 311 overcomes the force of the return spring on the switching lever 41 of the switching valve 4 to switch the switching valve to another working state (in conjunction with FIGS. 4 and 5, the clockwise rotation with respect to the rotor 49 in FIG.
  • the water can only enter the expansion chamber 10 through a small gap between the water blocking block 5 and the water inlet hole 12, and the flow rate thereof is small (less than the water discharge amount of the mixing valve 92 at this time, that is, the water blocking block in this embodiment)
  • the relationship between 5 and the inlet hole 12 realizes the micro-open state of the inlet valve), and the inlet valve A (i.e., the inlet valve composed of the water blocking block 5, the inlet hole 12 and the return spring 51) is still in the micro In the open state section, the water-controlled expansion device continues to contract, and the piston 3 continues to move downward under the action of the pressure spring 34 until the front portion 32 of the control lever will
  • the water block 5 is pushed downward, the opening between the water blocking block 5 and the water inlet hole 12 is increased, and the water inlet valve A (i.e., the water inlet valve composed of the water blocking block 5, the water inlet hole 12 and the return spring 51) enters.
  • the water-controlled expansion device When the state is open, the water-controlled expansion device enters a state of decompression and constant pressure. As shown in Fig. 3, the water heater enters the use state, and the tap water in the water pipe 811 passes through the water inlet valve 81 (the through hole 485 in the fixed piece of Fig. 4, Fig. 5
  • the water inlet 492 in the sheet, the through hole 484 in the fixed piece of FIG. 4, the interface 13, the water inlet hole 12, the expansion chamber 10, and the water outlet hole 11 are separated into two tubes, and the two paths are mixed.
  • the cold water inlet of the water valve 92 enters the cold water branch in the mixing valve, and the other is the water supply valve 82 (the through hole 483 of the fixed piece in Fig.
  • the water supply groove 491 of the moving piece in Fig. 5, and the fixed piece in Fig. 4) The hot water inlet of the through hole 481), the water supply pipe 821, the water tank 91, the hot water pipe 911, and the mixing valve 92 enters the hot water branch in the mixing valve 92, and the cold and hot water branch are mixed in the mixing valve. After entering the warm water, the water flows out through the water outlet pipe 921; when the hot water is used, the water mixing valve 92 is closed, and the water pressure in the expansion chamber 10 rises to move the piston 3 upward, and the control is performed.
  • the front portion 32 is separated from the water blocking block 5, and the water blocking block 5 re-blocks the water inlet hole 12 under the action of the return spring 51.
  • the switching valve 4 when the switching valve 4 is reset, if impurities are caught between the through hole 483 of the stator and the water supply groove 491 of the moving piece, the switching rod 41 cannot be reset, and the overflow pipe and the water supply pipe are not connected to each other.
  • the water tank 492 also spans between the through holes 484 and 485 (ie, the water inlet valve 81 is still open State), the water pressure in the expansion chamber 10 continues to increase, and the piston 3 continues to move upward on the basis of FIG. 2 until the piston 3
  • the connected ram 33 pushes the damper rod 71 upward to the stable threshold line formed by the switch lever 61 over the switch lever 61 and the stabilizer spring 62.
  • the damper rod acts due to the action of the one-way damper valve 701 on the damper seat 7.
  • 71 can only slow down 1man to move down and can not immediately reset the switch lever 61, that is, the drain valve 84 can be turned off after a certain period of time, during this delay time, the piston re-controls the switching valve to enter the working state, The impurities stuck between the through hole 483 and the water supply tank 491 are washed away.
  • the structure also has an effect of preventing impurities.
  • the central water supply can be realized by connecting the cold and hot water ports of the plurality of ice mixing valves to the pipe 901 and the hot water pipe 911, respectively.
  • the drain valve 84 and the inlet water tank 81 are omitted (not the water inlet valve is omitted), and the object of the present invention can be achieved at the same time, except that the 7J controlled expansion device 90 must have sufficient withstand voltage.
  • a plurality of connecting pipes 921 may be connected.
  • the outlet valve provides central water supply.
  • FIG. 6 is a schematic diagram of the connection structure and the control principle of the embodiment.
  • the second embodiment differs from the first embodiment only in that the water mixing valve in the first embodiment is changed to the faucet type water outlet valve 920.
  • the one-way valve 910 is used as a control valve between the outlet valve 920 and the hot water pipe 99, and the connection 9011 between the connection pipe and the outlet valve is changed to a smaller pipe diameter, and the rest is the same as that of FIG.
  • the 7j air expansion device of the structure shown in Fig. 2 the stator and the rotor structure in the switching valve also adopt the structure of Fig. 4 and Fig. 5 respectively, where the connection pipe 9011 adopts a smaller pipe diameter because the water outlet valve is prevented.
  • the joint 9011 can adopt a tube having a larger diameter.
  • Central water supply can be achieved by connecting multiple external taps at tube 099.
  • Embodiment 3 differs from the second embodiment only in that the one-way valve of FIG. 6 is changed to the normally closed shut-off valve 9100 of FIG. 7 as a control valve, and the shut-off valve 9100 is controlled by a water-controlled expansion device.
  • the expansion wall control inside, in the same way, the shut-off valve 9100 can also be integrated in the switching valve together with the overflow valve, the water supply valve and the like.
  • the working principle is similar to the above embodiment, and will not be described here.
  • FIG. 8 is a schematic diagram of a connection structure and a control principle, and a water-controlled expansion device diagram of FIG. 9.
  • This embodiment is modified from the embodiment of FIG. 1, and the water inlet valve 81 of FIG. 1 is omitted.
  • the drain valve 84 and the time delay damping mechanism of FIG. A limit block is arranged in the water-controlled expansion device, and the position of the limit block is shown in FIG. 9.
  • the support block 02 on the upper part of the valve body 01 protrudes from the limit block 020 to define the piston 03.
  • the highest position, the water inlet hole 012, the water blocking block 05 and the return spring 051 in the valve body 01 in Fig. 9 constitute the inlet valve (defined as "inlet valve B"), and the state of the inlet valve B is divided into Open the status segment and the micro-open status segment.
  • the water-controlled expansion device in Fig. 9 is in a standby state, the interface 013 is connected to the water pipe 800 in Fig. 8, the overflow valve Q8 3 and the water supply valve 082 in Fig. 8 are integrated in the switching valve 04 of Fig. 9, and the switching valve 04 is fixed.
  • the sheet 148 is as shown in FIG. 10 (actually, the through holes 484 and 485 in FIG. 4 are deleted), and the movable piece 149 is as shown in FIG. 11 (actually, the water inlet 492 in FIG. 5 can be deleted.
  • the through hole 1481 in the stator 148 of the switching valve 0 is connected to the water supply pipe 0821 and the through hole 1482 in FIG. 8 and connected to the overflow pipe 0831 and the through hole 1482 in FIG.
  • the movable piece 149 is provided with a water supply groove 1491 on the side of the fixed piece 148.
  • the water supply groove 1491 in the movable piece and the through holes 1481 and 1482 in the fixed piece constitute an overflow valve, a water supply groove 1491 and a through hole 1481 and a through hole in the fixed piece. 1483 constitutes a water supply valve.
  • the water supply tank 1491 is switched from the state of the communication through holes 1481 and 1482 (the overflow valve 083 is opened, the water supply valve 082 is closed) to the state of the communication through holes 1481 and 1481 (the overflow valve 083 is closed, the water supply valve 082 is opened), Since the water blocking block 05 is also blocked at the outlet of the water inlet hole 012, the tap water can only enter the expansion chamber 010 through the gap between the water blocking block 05 and the water inlet hole 012, that is, by the water blocking block 05, the return spring 051 and the inlet.
  • the water inlet valve (inlet valve B) formed by the water hole 012 is still in a slightly open state, so the piston 03 can continue to move down until the front portion 032 of the control lever pushes the water blocking block 05 downward to make the water blocking block 05 and the water inlet.
  • the hole 012 is separated, and is composed of a water blocking block 05, a return spring 051 and a water inlet hole 012.
  • the inlet valve enters the open state and stabilizes the water pressure in the expansion chamber 01 0.
  • the water heater enters the use state, enters the expansion chamber 010 through the water inlet hole 012, and the water in the connection pipe 0901 directly enters the mixing valve 092.
  • the cold water inlet the other through the water supply valve C82 (ie, the through hole 1483 on the fixed piece 148, the water supply groove 1491 on the moving piece 149, the through hole 1481 on the fixed piece), the water supply pipe 0821 into the water tank 091, the hot water in the water tank 091
  • the hot water inlet which is pressed into the mixing valve 092 through the hot water pipe 0911 is mixed with the cold water from the cold water inlet of the mixing valve, and then becomes warm water and flows out through the outlet pipe 0921; after the hot water is used, the mixing valve 092 is closed, and the water is expanded.
  • the central water supply can be realized by connecting the cold and hot water inlets of the multiple mixing valves to the pipe 0901 and the hot water pipe Q911 respectively. In the present embodiment, in order to prevent the water supply tank 1491 in FIG.
  • the transition section is: a half-span through hole 1482, a full-span through hole 1481, a half-span through hole 148 3 , if If there is no impurity jam, the water supply tank 1491 can be quickly swept from the through holes 1481 and 1482 to the through holes 1481 and 1481 by the piston, and a small part of the water flows out through the overflow pipe; if there is an impurity stuck in the through hole 1482 and the water supply tank 1491, the water entering through the water blocking block 05 and the water inlet hole 012 in Fig. 9 can flow out through the overflow valve and the overflow pipe, thereby ensuring that the water tank is not affected by the tap water pressure.
  • FIG. 12 is a schematic diagram of a connection structure and a control principle of the present embodiment.
  • the difference from the first embodiment is that the water blocking block 5 and the return spring 51 in the water-controlled expansion device of FIG. 2 are removed (see FIG.
  • the mark in the figure is the same as that in Fig. 1.
  • the structure of the widening of the 7j air expansion device is the structure shown in Fig. 14, and the structure of the moving piece is the same as that of Fig. 5. That is, relating to the fifth embodiment are Figs. 12, 13, 3, 14, and 5.
  • the inlet valve 881, the overflow valve 83, and the water supply valve 82 in Fig. 12 are integrated in the switching valve 4 in Fig. 13.
  • the through hole 4810 in the fixed piece of the switching valve is connected to the water supply pipe 821 and the through hole 4820 in FIG. 12, and the overflow pipe 831 and the through hole 48 30 in FIG. 12 are connected to the connecting pipe 901 in FIG.
  • the hole 4840 is connected to the expansion chamber 10 through the interface 13 in FIG. 13, and the through hole 4850 is connected to the water pipe 811 in FIG. 12, and the two sets of dashed lines 400 and 500 respectively represent the water heater shown in FIG. 5 when the water heater is in the standby state.
  • the water supply tank 491 and the through hole 4810 and the through hole 4830 in the fixed piece of Fig. 14 constitute the water supply valve 82
  • the water inlet 492 in the moving piece of Fig. 5 and the through holes 4840 and 4850 in the fixed piece of Fig. 14 constitute the water inlet valve 881;
  • the left side of the through hole 4850 in the fixed piece is provided with a water leakage slit 851, so that the water inlet valve 492 in the moving piece of Fig. 5 and the water inlet valve 881 formed in the through hole 4840 and 4850 in the fixed piece of Fig. 14 have an open state section. , micro open state segment and closed state three states.
  • Figure 14 shows the relative position of the fixed piece and the moving piece of the switching valve 4 in Figure 13 in the standby state.
  • the dotted line 400 representing the water inlet 492 of Fig. 5 just passes over the water leakage joint 4851, the through holes 4840 and 4850 are not in communication, the inlet valve 881 is completely closed, and the dotted line 500 representing the water supply tank 491 of Fig. 5 is crossed.
  • the overflow valve 83 is opened, and the water supply valve 82 is closed.
  • the dashed line 500 representing the water supply tank is switched from spanning between the through holes 4810, 4830 (the water supply valve is open, the overflow valve is closed) to span between the through holes 4810, 4820 ( When the water supply valve is closed and the overflow valve is opened, the state shown in Figure 14 is returned and the water heater returns to the standby state.
  • the fourth embodiment should be the simplest and practical solution in the present invention.

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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)
  • Multiple-Way Valves (AREA)

Abstract

L’invention concerne un procédé de contrôle de courant d’eau automatique pour chauffe-eau et un chauffe-eau avec une structure simple, à la fois pratiques et sans danger en service, permettant de rallonger la durée de vie du réservoir d’eau du chauffe-eau. Le chauffe-eau comprend un réservoir d’eau, un tuyau d’eau chaude, une valve de sortie d’eau, un tuyau de trop-plein d’eau, un tuyau d’eau de robinet et un tuyau d’arrivée d’eau. L’entrée d’eau de la valve de sortie d’eau est connectée à un tuyau d’accouplement. Une valve de régulation est connectée entre le tuyau d’accouplement et la sortie du tuyau d’eau chaude. Un dispositif d’expansion contrôlé par l’eau est connecté entre le tuyau d’accouplement et le tuyau d’eau de robinet. Une valve d’arrivée d’eau normalement fermée est connectée entre le tuyau d’accouplement et le tuyau d’arrivée d’eau. Une valve de trop-plein d’eau normalement ouverte est connectée entre le réservoir d’eau et le tuyau de trop-plein d’eau. Une valve d’injection d’eau est disposée sur le passage du tuyau d’eau de robinet, qui est habituellement entr’ouvert. La valve d’arrivée d’eau, la valve de trop-plein d’eau et la valve d’injection d’eau sont commandées par la paroi extensible du dispositif d’expansion contrôlé par l’eau. Lorsque la valve de sortie d’eau est ouverte, la valve d’injection d’eau est maintenue entr’ouverte au moment auquel la paroi extensible contrôle la valve d’arrivée d’eau et la valve de trop-plein d’eau pour changer d‘état.
PCT/CN2006/000828 2005-05-05 2006-04-27 Procédé de contrôle de courant d’eau automatique pour chauffe-eau et chauffe-eau WO2006116924A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 200510071531 CN1715804A (zh) 2004-07-02 2005-05-05 混合式热水器的水流自动控制方法
CN200510071524.0 2005-05-05
CN200510071531.0 2005-05-05
CN 200510071524 CN1715803A (zh) 2004-07-02 2005-05-05 敞开式贮水热水器

Publications (1)

Publication Number Publication Date
WO2006116924A1 true WO2006116924A1 (fr) 2006-11-09

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PCT/CN2006/000828 WO2006116924A1 (fr) 2005-05-05 2006-04-27 Procédé de contrôle de courant d’eau automatique pour chauffe-eau et chauffe-eau

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486730A (zh) * 2013-09-02 2014-01-01 中山市超人电器有限公司 一种带自动排水防冻的燃气快速热水器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63251754A (ja) * 1987-04-06 1988-10-19 Matsushita Electric Ind Co Ltd 貯湯式給湯装置
DE4139278A1 (de) * 1991-11-29 1993-06-03 Stiebel Eltron Gmbh & Co Kg Vorrichtung bei einem warmwasserbereiter zum vermeiden des tropfens
JP2002122353A (ja) * 2000-10-17 2002-04-26 Toto Ltd 貯湯式温水器
CN2684083Y (zh) * 2004-03-14 2005-03-09 麦广海 封闭式微压贮水热水器
CN1590915A (zh) * 2003-09-03 2005-03-09 麦广海 无静压电热水器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63251754A (ja) * 1987-04-06 1988-10-19 Matsushita Electric Ind Co Ltd 貯湯式給湯装置
DE4139278A1 (de) * 1991-11-29 1993-06-03 Stiebel Eltron Gmbh & Co Kg Vorrichtung bei einem warmwasserbereiter zum vermeiden des tropfens
JP2002122353A (ja) * 2000-10-17 2002-04-26 Toto Ltd 貯湯式温水器
CN1590915A (zh) * 2003-09-03 2005-03-09 麦广海 无静压电热水器
CN2684083Y (zh) * 2004-03-14 2005-03-09 麦广海 封闭式微压贮水热水器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486730A (zh) * 2013-09-02 2014-01-01 中山市超人电器有限公司 一种带自动排水防冻的燃气快速热水器
CN103486730B (zh) * 2013-09-02 2016-06-01 中山市超人电器有限公司 一种带自动排水防冻的燃气快速热水器

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