Outlet water temperature control device of CO2 heat pump water heater

Abstract

The utility model discloses an outlet water temperature control device of a CO2 heat pump water heater, and relates to the technical field of water heater temperature control. Comprising a control mechanism, the control mechanism comprises a heat preservation box, a hot water pipe is fixedly connected to one side of the top of the heat preservation box, a cold water pipe is fixedly connected to the other side of the top of the heat preservation box, first electromagnetic valves are installed on the outer walls of one ends of the hot water pipe and the cold water pipe, and circulating pumps are installed on the outer walls of the other ends of the hot water pipe and the cold water pipe; the circulating pump is connected with the mixing box and used for recycling residual hot water. Through the arrangement of the control mechanism and the recycling mechanism, in the using process, a first electromagnetic valve and a circulating pump are opened, hot water and cold water enter the mixing tank through a hot water pipe and a cold water pipe to be mixed, and then a distribution valve is started to enable the hot water to enter the water storage tank through different connecting pipes; and temperature monitoring is conducted through the first temperature sensor, the water flow can be adjusted according to requirements, and a more flexible use mode is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water heater temperature control technical field, concretely is a CO2 heat pump water heater water temperature control device. BACKGROUND

[0002] Such as patent publication no. CN203010943U a water heater water temperature control device, cold water sensor installs on the cold water pipe, hot water sensor installs on the hot water pipe, cold water sensor, hot water sensor, water sensor and control module signal end connection, install a step motor with valve piece between the cold water pipe and mixer, the water outlet pipe of mixer installs a water sensor, install display, digital button, E cancel key and Y determination key on the panel of control module, control module leads out a plug, press the digital key of required water temperature, press Y determination key finally, when water sensor transmits the temperature of water to control module, control module adjusts the motor according to the actual temperature of water. Have the function of self-setting according to the hot water temperature required by people.

[0003] But the above-mentioned equipment and similar equipment in the process of using, because the setting of its internal control module, when using, because everyone's use demand is different, when needing to carry out flexible adjustment, it is inconvenient to adjust quickly, therefore for this kind of situation, we propose a more convenient and practical control device and meet the use demand. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a CO2 heat pump water heater water temperature control device to solve the problems in the above background.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a CO2 heat pump water heater water temperature control device, including control mechanism, for controlling water heater water temperature, and the control mechanism contains heat preservation box, one side of heat preservation box top is fixedly connected with hot water pipe, and the other side is fixedly connected with cold water pipe, first electromagnetic valve is installed on the outer wall of one end of hot water pipe and cold water pipe, and circulating pump is installed on the outer wall of the other end, mixing box is fixedly connected on the inner wall of heat preservation box top, and the circulating pump and mixing box are connected, recovery mechanism is arranged at the bottom of heat preservation box for recycling residual hot water.

[0006] Further, the mixing box bottom central installation has distribution valve, and the output end of distribution valve is fixedly connected with connecting pipe, and one end of connecting pipe is installed with first temperature sensor.

[0007] Further, the hot water pipe one side is provided with through hole, and recovery pipe is fixedly connected in the through hole, and recovery pump is installed on the outer wall of one end of recovery pipe.

[0008] Further, the recycling mechanism comprises a plurality of equidistant water storage tanks, the water storage tank is connected with the inner wall of the bottom of the heat preservation box, and a second temperature sensor is arranged on one side of the bottom of the water storage tank.

[0009] Further, a through hole is arranged in the center of the bottom of the water storage tank, a drain pipe is fixedly connected in the through hole, and a second electromagnetic valve is arranged on the outer wall of one end of the drain pipe.

[0010] Further, a through hole is arranged in the center of the bottom of the water storage tank, a drain pipe is fixedly connected in the through hole, and a second electromagnetic valve is arranged on the outer wall of one end of the drain pipe.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The water outlet temperature control device of the CO2 heat pump water heater is provided with a control mechanism and a recycling mechanism, in the use process, the hot water pipe is connected with the water heater, the cold water pipe is connected with the water pipe, the first electromagnetic valve and the circulating pump are opened to make the hot water and the cold water enter the mixing box through the hot water pipe and the cold water pipe for mixing, then the distribution valve is started to make the hot water enter the water storage tank through different connecting pipes, and the temperature is monitored through the first temperature sensor, the device can adjust the water flow according to the demand, realizes more flexible use mode, adapts to the hot water demand in different scenes, has high practicability and is suitable for promotion.

[0013] Meanwhile, the recycling mechanism recycles the residual hot water, reduces the heating demand of new water, thereby reducing the operation cost of the water heater and saving the water and electricity cost of the user. ACCURATE DRAWINGS

[0014] Fig. 1 It is the overall mechanism cross-section structure schematic view of the utility model;

[0015] Fig. 2 It is the control mechanism cross-section structure schematic view of the utility model;

[0016] Fig. 3 It is the recycling mechanism cross-section structure schematic view of the utility model.

[0017] In the drawing: 1, heat preservation box; 2, hot water pipe; 3, cold water pipe; 4, first electromagnetic valve; 5, circulating pump; 6, mixing box; 7, distribution valve; 8, connecting pipe; 9, first temperature sensor; 10, recycling pipe; 11, recycling pump; 12, water storage tank; 13, second temperature sensor; 14, drain pipe; 15, second electromagnetic valve; 16, fixed pipe; 17, support pipe. CONCRETE IMPLEMENTATION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] In the use process of the water heater, the control device needs to be used, and the control device is used for water temperature control operation in the use process of the water heater. In the control operation process of the device, please ensure that all pipeline connections are correct and fastened before operation to prevent water leakage or uneven water temperature caused by loose pipeline. In the use process, the temperature sensor is a key component for monitoring water temperature, and its surface needs to be kept clean to avoid being covered by dirt and affecting measurement accuracy. When the water heater is not used for a long time, the power should be turned off and the water in the pipeline should be emptied to prevent pipeline cracking or bacterial growth.

[0020] As shown in Figs. 1-3 The utility model provides a technical scheme: a CO2 heat pump water heater water temperature control device, including control mechanism, be used for controlling water heater water temperature, control mechanism contains heat preservation box 1, heat preservation box 1 top one side is fixedly connected with hot water pipe 2, the other side is fixedly connected with cold water pipe 3, and hot water pipe 2 and cold water pipe 3 one end outer wall is installed with first electromagnetic valve 4, and the other end outer wall is installed with circulating pump 5, and heat preservation box 1 top inner wall is fixedly connected with mixing box 6, and circulating pump 5 and mixing box 6 are connected, and heat preservation box 1 bottom is provided with recovery mechanism, is used for recycling residual hot water.

[0021] As shown in Fig. 2 Mixing box 6 bottom central installation has distribution valve 7, and distribution valve 7 output end is fixedly connected with connecting pipe 8, and connecting pipe 8 one end is installed with first temperature sensor 9, and hot water pipe 2 one side is provided with through hole, and the through hole is fixedly connected with recovery pipe 10, and recovery pipe 10 one end outer wall is installed with recovery pump 11.

[0022] It should be noted that hot water pipe 2 and cold water pipe 3 outer wall are installed with temperature sensor, in the use process, first hot water pipe 2 and water heater are connected, and cold water pipe 3 and water pipe are connected, then first electromagnetic valve 4 and circulating pump 5 open make hot water and cold water pass through hot water pipe 2 and cold water pipe 3 and enter mixing box 6 and mix, then distribution valve 7 starts and makes hot water pass through different connecting pipe 8 and enter recovery mechanism, and temperature monitoring is carried out through first temperature sensor 9, and the temperature of hot water is adjusted again, and control mechanism can accurately control the water temperature of water heater by real-time monitoring of water temperature, to ensure that the comfortable water temperature required by users is provided.

[0023] AsFig. 3 As shown, the recycling mechanism includes multiple equidistant water storage tanks 12. The water storage tanks 12 are connected to the bottom inner wall of the insulation box 1. A second temperature sensor 13 is installed on one side of the bottom inner wall of the water storage tank 12. A through hole is opened in the center of the bottom of the water storage tank 12. A drain pipe 14 is fixedly connected in the through hole. A second solenoid valve 15 is installed on the outer wall of one end of the drain pipe 14. A through hole is opened on one side of the drain pipe 14. A fixed pipe 16 is fixedly connected in the through hole. A support pipe 17 is fixedly connected to one end of the fixed pipe 16. The support pipe 17 is connected to the recycling pipe 10.

[0024] It should be noted that the drain pipes 14 are connected by a fixed pipe 16. During use, the support pipe 17, the recovery pipe 10, and the recovery pump 11 are first connected. When hot water enters the storage tank 12, the second temperature sensor 13 first monitors the hot water temperature, and at the same time, the second solenoid valve 15 opens to allow the hot water to be discharged through the drain pipe 14. When there is remaining hot water in the insulation tank 1, the recovery pump 11 starts and allows the hot water to re-enter the hot water pipe 2 through the support pipe 17 and the recovery pipe 10. By recovering the remaining hot water, the recovery mechanism reduces the need to heat new water, thereby reducing the operating cost of the water heater and saving users' water and electricity costs.

[0025] During use, the entire device and control system are connected, and all pipes are wrapped with insulation. The recovery pipe 10 and hot water pipe 2 are connected. First, the hot water pipe 2 is connected to the water heater, and the cold water pipe 3 is connected to the water pipe. Then, the first solenoid valve 4 and the circulation pump 5 are opened to allow hot and cold water to enter the mixing tank 6 through the hot water pipe 2 and the cold water pipe 3 for mixing. Then, the distribution valve 7 is activated to allow hot water to enter the recovery mechanism through different connecting pipes 8. The temperature is monitored by the first temperature sensor 9, and the hot water is controlled to enter different storage tanks 12. Subsequently, the second temperature sensor 13 monitors the hot water temperature, and the second solenoid valve 15 is opened to allow the hot water to be discharged through the drain pipe 14. When there is remaining hot water in the insulation tank 1, the recovery pump 11 is activated to allow the hot water to re-enter the hot water pipe 2 through the support pipe 17 and the recovery pipe 10. This device can adjust the water flow according to the needs, realizing a more flexible use mode and adapting to the hot water needs in different scenarios.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A device for controlling the outlet water temperature of a CO2 heat pump water heater, characterized in that: The device includes a control mechanism for controlling the outlet water temperature of the water heater. The control mechanism includes an insulation box (1). A hot water pipe (2) is fixedly connected to one side of the top of the insulation box (1), and a cold water pipe (3) is fixedly connected to the other side. A first solenoid valve (4) is installed on the outer wall of one end of the hot water pipe (2) and the cold water pipe (3), and a circulation pump (5) is installed on the outer wall of the other end. A mixing tank (6) is fixedly connected to the inner wall of the top of the insulation box (1). The circulation pump (5) and the mixing tank (6) are connected to each other. A recycling mechanism is provided at the bottom of the insulation box (1) for recycling residual hot water.

2. The CO2 heat pump water heater outlet water temperature control device according to claim 1, characterized in that: A distribution valve (7) is installed at the center of the bottom of the mixing tank (6). A connecting pipe (8) is fixedly connected to the output end of the distribution valve (7). A first temperature sensor (9) is installed at one end of the connecting pipe (8).

3. The CO2 heat pump water heater outlet water temperature control device according to claim 1, characterized in that: A through hole is provided on one side of the hot water pipe (2), and a recovery pipe (10) is fixedly connected in the through hole. A recovery pump (11) is installed on the outer wall of one end of the recovery pipe (10).

4. The CO2 heat pump water heater outlet water temperature control device according to claim 1, characterized in that: The recycling mechanism includes multiple equidistant water storage tanks (12), the bottom inner walls of the water storage tanks (12) and the heat preservation box (1) are connected, and a second temperature sensor (13) is installed on one side of the bottom inner wall of the water storage tank (12).

5. The CO2 heat pump water heater outlet water temperature control device according to claim 4, characterized in that: The water storage tank (12) has a through hole in the center of the bottom, and a drain pipe (14) is fixedly connected in the through hole. A second solenoid valve (15) is installed on the outer wall of one end of the drain pipe (14).

6. The CO2 heat pump water heater outlet water temperature control device according to claim 5, characterized in that: The drain pipe (14) has a through hole on one side, and a fixed pipe (16) is fixedly connected in the through hole. A support pipe (17) is fixedly connected to one end of the fixed pipe (16), and the support pipe (17) and the recovery pipe (10) are connected to each other.

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