Instantaneous heat pump kitchen water heater

Abstract

The present invention discloses an instantaneous heat pump kitchen water heater, comprising an outer shell and a control device. An exhaust fan is inserted into the top of the outer shell. An air heat source pump unit and an insulated shell are disposed within the outer shell. A water tank is disposed within the insulated shell. A detection assembly is disposed within the water tank. A flow divider assembly is disposed at the bottom of the water tank. A gas flow divider plate is mounted on the top of the water tank. A main gas pipeline is mounted on the top of the water tank. The air heat source pump unit includes a compressor, a throttling device, an evaporator, a four-way valve, a circulation pipeline, and four condensing devices. By utilizing the control device, detection assembly, flow divider assembly, air heat source pump unit, exhaust fan, gas flow divider plate, main gas pipeline, and auxiliary gas pipeline, the present invention not only reduces the energy consumption of the water heater and significantly reduces electricity consumption, but also improves heating efficiency, thereby offering advantages such as energy saving, environmental protection, safety, and high efficiency.

Description

Technical Field

[0001] The present invention relates to the field of water heaters, in particular to an instant heat pump type kitchen water heater. Background Art

[0002] With the improvement of social life, people's requirements for quality of life are gradually increasing. Water heaters are widely used in people's lives as daily necessities. A small kitchen water heater refers to a small-capacity wall-mounted water heater with a capacity of less than 20 liters installed in the kitchen for washing hands, dishes, and vegetables. It has the advantages of instant heating, low price, convenience and speed. Kitchen water heaters can be divided into storage type and instant electric water heaters. Storage type kitchen water heaters need to be powered on and heated for a period of time before use. In addition, the water tank of this type of kitchen water heater is prone to scale, which greatly affects the user's use. Although the instant electric water heater can immediately produce hot water, the water flow rate is limited, and the water temperature is often too low at a large flow rate, which greatly affects the user's use.

[0003] Existing kitchen water heaters generally use electric heating for heating, which has the disadvantages of high energy consumption, poor safety, and short service life.

[0004] Therefore, it is necessary to invent instant heat pump type kitchen water heater to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an instant heat pump kitchen water heater to solve the problems of existing kitchen water heaters generally using electric heating, which has high energy consumption, poor safety and short service life.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: an instant heat pump type kitchen water heater, comprising an outer shell and a control device, an exhaust fan is inserted into the top of the outer shell, an air heat source pump unit and an insulation shell are arranged in the outer shell, a water tank is arranged on the inner side of the insulation shell, a detection component is arranged in the water tank, a diversion component is arranged at the bottom of the water tank, a gas diversion plate is sleeved on the upper part of the water tank, a main gas pipeline is installed on the top of the water tank, the main gas pipeline is connected to the air outlet of the exhaust fan, a plurality of auxiliary gas pipelines are installed on the main gas pipeline, the two ends of the auxiliary gas pipeline are respectively connected to the main gas pipeline and the insulation shell, and the air heat source pump unit comprises a compressor, a throttling device, an evaporator, a four-way valve, a circulation pipeline and four condensing devices, the four condensing devices are located around the water tank and are fixedly connected to the water tank, the condensing devices are connected in series by pipelines, and the air outlet of the compressor is connected to the inlet of the head-end condensing device through a pipeline, and the inlet of the circulation pipeline is connected to the outlet of the tail-end condensing device.

[0007] Preferably, the diversion assembly includes a diversion cylinder and several diversion pipes. The diversion cylinder is a cylindrical structure with a cover on the bottom. The upper and lower ends of the diversion cylinder are fixedly connected to the water tank and the insulation shell respectively, and the diversion pipes are radially distributed in the diversion cylinder and connected to the water tank.

[0008] Preferably, a cold water pipe is inserted into the bottom plate of the thermal insulation shell, and the two ends of the cold water pipe pass through the diversion cylinder and the bottom plate of the outer shell respectively, and a hot water pump is installed on the top of the thermal insulation shell, and the inlet and outlet ends of the hot water pump are respectively connected to the inlet pipe and the outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to the water tank and the outer shell.

[0009] Preferably, the detection component includes a liquid level sensor and two temperature sensors, and the liquid level sensor and the two temperature sensors are embedded in the water tank. The two temperature sensors are respectively located at the upper and lower parts of the water tank, and the liquid level sensor is located between the two temperature sensors.

[0010] Preferably, the control device includes a controller and a touch screen, the touch screen is embedded in the front cover of the outer shell, the controller is fixedly connected to the front cover of the outer shell, and the controller is electrically connected to the exhaust fan, compressor, four-way valve, hot water pump and touch screen through wires.

[0011] Preferably, an air collecting hood is installed on the outer shell, an air supply pipe is installed at one end of the air collecting hood, and a filter is installed on the inner wall of the air supply pipe.

[0012] Preferably, the circulation pipeline is connected in series with the evaporator inlet through a throttling device, the evaporator outlet and the air supply pipe are respectively connected to two of the inlets of the four-way valve, and the air inlet of the compressor is connected to the outlet of the four-way valve.

[0013] Preferably, an insulation board is installed on the inner wall of the insulation shell, and a hot air pipe is inserted into the insulation shell. One end of the hot air pipe passes through the insulation board, and the other end is connected to the other inlet of the four-way valve.

[0014] Preferably, a protective filter is installed on the air inlet of the exhaust fan, and the protective filter is fixedly connected to the air inlet of the exhaust fan.

[0015] Preferably, the gas diverter plate is fixedly connected to the water tank and the heat-insulating shell respectively, and a plurality of diverter holes are evenly distributed on the gas diverter plate.

[0016] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0017] 1. Through the control device, detection components, diversion components, air heat source pump unit, exhaust fan, gas diversion plate, main gas pipeline and auxiliary gas pipeline, etc., it can not only reduce the energy consumption of the water heater and significantly reduce electricity consumption, but also improve the heating efficiency, with the advantages of energy saving, environmental protection, safety and high efficiency;

[0018] 2. Through the exhaust fan, gas diverter plate and hot air pipe, waste heat is reused, which not only enables the water heater to stably produce hot water in a low-temperature environment, but also improves energy utilization;

[0019] 3. The diverter pipe can divert cold water so that it enters the water tank more evenly, which not only makes the heating more uniform, but also disturbs the water in the water tank, which can effectively avoid the situation of stagnant water. The diverter tube is conducive to the stratification of hot and cold water, which can improve the user experience.

[0020] 4. The condensing device is arranged outside the water tank, which can effectively avoid the formation of scale on the surface of the condensing device, thereby extending the service life of the condensing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a side sectional view of the present invention;

[0024] Figure 3 It is a front cross-sectional view of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 It is a cross-sectional view of a water tank of the present invention.

[0027] Description of reference numerals:

[0028] 1. Outer shell; 2. Insulated shell; 3. Water tank; 4. Diverter assembly; 5. Diverter pipe; 6. Gas diverter plate; 7. Diverter hole; 8. Exhaust fan; 9. Main gas pipeline; 10. Liquid level sensor; 11. Temperature sensor; 12. Insulation board; 13. Condensing device; 14. Hot water pump; 15. Evaporator; 16. Compressor; 17. Four-way valve; 18. Air hood; 19. Hot air duct; 20. Circulation duct; 21. Controller; 22. Touch screen; 23. Protective filter. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The present invention provides Figure 1-5 The instant heat pump kitchen water heater shown includes an outer shell 1 and a control device. An exhaust fan 8 is inserted into the top of the outer shell 1. An air heat source pump unit and an insulation shell 2 are provided in the outer shell 1. A water tank 3 is provided on the inner side of the insulation shell 2. A detection component is provided in the water tank 3. A diversion component 4 is provided at the bottom of the water tank 3. A gas diversion plate 6 is provided on the upper part of the water tank 3. A main gas pipeline 9 is installed on the top of the water tank 3. The main gas pipeline 9 is connected to the air outlet of the exhaust fan 8. Several auxiliary gas pipelines are installed on the main gas pipeline 9. The two ends of the auxiliary gas pipeline are respectively connected to the main gas pipeline 9 and the insulation shell 2, and the air heat source pump unit includes a compressor 16, a throttling device, an evaporator 15, a four-way valve 17, a circulation pipeline 20 and four condensing devices 13. The throttling device uses an expansion valve or a capillary tube. The four condensing devices 13 are located in the water The box 3 is surrounded and fixedly connected to the water tank 3. The condensing device 13 can adopt the plate condenser in the existing technology, or a plurality of U-shaped tubes can be connected in parallel to assemble into a large heat exchange tube. The condensing device 13 is arranged outside the water tank 3, which can effectively avoid the generation of scale on the surface of the condensing device 13, thereby extending the service life of the condensing device 13. The condensing devices 13 are connected in series through pipes, and the air outlet of the compressor 16 is connected to the inlet of the head-end condensing device 13 through a pipe, and the inlet of the circulation pipe 20 is connected to the outlet of the tail-end condensing device 13. The compressor 16 is used to generate high-temperature and high-pressure gas, and the high-temperature and high-pressure gas is sent to the condensing device 13 to exchange heat with water to achieve water heating. After that, the high-pressure liquid refrigerant is depressurized through the throttling device and flows into the evaporator 15. The liquid refrigerant is converted into gas through the evaporator 15 and flows into the compressor 16, and then the above process is repeated.

[0031] Furthermore, in the above technical solution, the diversion assembly 4 includes a diversion cylinder and several diversion pipes 5. The diversion cylinder is a cylindrical structure with a cover on the bottom. The upper and lower ends of the diversion cylinder are fixedly connected to the water tank 3 and the insulation shell 2 respectively, and the diversion pipes 5 are radially distributed in the diversion cylinder and connected with the water tank 3. The set diversion cylinder is conducive to the stratification of hot and cold water. The set diversion pipes 5 can divert cold water so that cold water enters the water tank 3 more evenly, which not only makes the heating more uniform, but also disturbs the water in the water tank 3, and can effectively avoid the occurrence of dead water.

[0032] Furthermore, in the above technical solution, a cold water pipe is inserted on the bottom plate of the thermal insulation shell 2, and a solenoid valve can be installed on the cold water pipe (other electric valves can also be used), and a pipe is used to connect it to the household water pipe. When the water level is lower than the set value, the controller 21 controls the solenoid valve to open, and under the action of the water pressure itself, the water will automatically flow into the water tank 3. The two ends of the cold water pipe respectively pass through the diversion cylinder and the bottom plate of the outer shell 1, and a hot water pump 14 is installed on the top of the thermal insulation shell 2. The inlet and outlet ends of the hot water pump 14 are respectively connected to the inlet pipe and the outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to the water tank 3 and the outer shell 1. By turning on the hot water pump 14, hot water can be supplied to the user.

[0033] Furthermore, in the above technical solution, the detection component includes a liquid level sensor 10 and two temperature sensors 11, and the liquid level sensor 10 and the two temperature sensors 11 are embedded in the water tank 3. The two temperature sensors 11 are respectively located at the upper and lower parts of the water tank 3, and the liquid level sensor 10 is located between the two temperature sensors 11. The water temperatures of the upper and lower parts of the water tank 3 are measured respectively by the two temperature sensors 11. When the water temperatures of the two parts reach the set values, the controller 21 turns off the air heat source pump unit and measures the water level of the water tank 3 through the liquid level sensor 10.

[0034] Furthermore, in the above technical solution, the control device includes a controller 21 and a touch screen 22. The touch screen 22 is embedded in the front cover of the outer shell 1. The touch screen 22 can be used to manually adjust parameters such as the hot water temperature and the water level in the water tank, and the water heater can also be turned off or on, which is more convenient to use. The controller 21 is fixedly connected to the front cover of the outer shell 1. The controller 21 is electrically connected to the exhaust fan 8, the compressor 16, the four-way valve 17, the hot water pump 14 and the touch screen 22 through wires. The operation of each device is controlled by the program written in the controller 21 to achieve automatic control.

[0035] Furthermore, in the above technical solution, an air collecting hood 18 is installed on the outer shell 1, an air supply pipe is installed at one end of the air collecting hood 18, and a filter is installed on the inner wall of the air supply pipe. The air collecting hood 18 is a trumpet-shaped structure, which can expand the air intake range, and the set filter can effectively prevent external dust and the like from entering the compressor 16, thereby extending the service life of the compressor 16.

[0036] Furthermore, in the above technical solution, the circulation pipe 20 is connected in series with the inlet of the evaporator 15 through a throttling device, the outlet of the evaporator 15 and the air supply pipe are respectively connected to two of the inlets of the four-way valve 17, and the air inlet of the compressor 16 is connected to the outlet of the four-way valve 17. By switching the four-way valve 17 by the controller 21, the inlet of the compressor 16 can be allowed to pass through the outside air or the low-temperature and low-pressure gas generated by the evaporator 15 or the hot air brought in by the hot air pipe 19.

[0037] Furthermore, in the above technical solution, an insulation board 12 is installed on the inner wall of the insulation shell 2. The insulation board 12 can be made of polyurethane foam material, mineral wool insulation material, etc., which can improve the insulation performance of the insulation shell 2. A hot air pipe 19 is inserted into the insulation shell 2. One end of the hot air pipe 19 passes through the insulation board 12, and the other end is connected to the other inlet of the four-way valve 17. The cold air flowing in the hot air pipe 19 can take away the residual heat on the condensing device 13.

[0038] Furthermore, in the above technical solution, a protective filter 23 is installed on the air inlet of the exhaust fan 8, and the protective filter 23 is fixedly connected to the air inlet of the exhaust fan 8. The set protective filter 23 can effectively prevent external dust and the like from entering the exhaust fan 8, thereby effectively preventing dust and the like from entering the insulation shell 2.

[0039] Furthermore, in the above technical solution, the gas diversion plate 6 is fixedly connected to the water tank 3 and the insulation shell 2 respectively, and a plurality of diversion holes 7 are evenly distributed on the gas diversion plate 6. The provided diversion holes 7 can allow the generated wind to pass evenly between the condensing device 13 and the insulation shell 2.

[0040] Working principle of the present invention:

[0041] Refer to the instruction manual Figure 1-5 When heating water, cold water enters the diversion cylinder through the cold water pipe, and the cold water is diverted by the diversion pipe 5 so that the cold water can enter the water tank 3 more evenly. Then the controller 21 starts the air heat source pump unit to heat the water in the water tank 3. The two temperature sensors 11 respectively measure the water temperature in the upper and lower parts of the water tank 3. When the water temperature in both parts reaches the set value, the controller 21 turns off the air heat source pump unit and stops heating. When the user needs water, the hot water pump 14 is used to supply hot water to the user.

[0042] Refer to the instruction manual Figure 1-5 When the outside temperature is low, cold water enters the diversion cylinder through the cold water pipe, and the cold water is diverted by the diversion pipe 5 so that the cold water can enter the water tank 3 more evenly. Then the controller 21 starts the air heat source pump unit to heat the water in the water tank 3. At the same time, the exhaust fan 8 generates cold air, and the main gas pipeline 9 and the auxiliary gas pipeline are used to send the generated cold air into the insulation shell 2. The cold air is diverted through the gas diversion plate 6 so that the cold air can flow through the condensing device 13 more evenly, and the waste heat on the surface of the condensing device 13 is taken away by heat exchange. Then the four-way valve 17 is switched and the hot air is sent to the compressor 16 through the hot air pipe 19, which can not only reduce the energy consumption of the compressor 16, but also improve the heating efficiency.

[0043] Refer to the instruction manual Figure 1 、 3 And 5, the diverter pipe 5 can divert the cold water so that the cold water enters the water tank 3 more evenly, which not only makes the heating more uniform, but also disturbs the water in the water tank 3, which can effectively avoid the occurrence of dead water. The diverter tube is conducive to the stratification of hot and cold water, which can improve the user experience.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An instantaneous heat pump type kitchen water heater comprising an outer shell (1) and a control device, characterized in that: An exhaust fan (8) is inserted into the top of the outer shell (1), an air heat source pump unit and a heat-insulating shell (2) are arranged in the outer shell (1), a water tank (3) is arranged on the inner side of the heat-insulating shell (2), a detection component is arranged in the water tank (3), a flow dividing component (4) is arranged at the bottom of the water tank (3), a gas flow dividing plate (6) is sleeved on the upper part of the water tank (3), a main gas pipeline (9) is installed on the top of the water tank (3), the main gas pipeline (9) is connected to the air outlet of the exhaust fan (8), a plurality of auxiliary gas pipelines are installed on the main gas pipeline (9), and the two ends of the auxiliary gas pipeline are divided into The air heat source pump unit is connected to the main gas pipeline (9) and the heat-insulating shell (2), and the air heat source pump unit includes a compressor (16), a throttling device, an evaporator (15), a four-way valve (17), a circulation pipeline (20) and four condensing devices (13). The four condensing devices (13) are located around the water tank (3) and are fixedly connected to the water tank (3). The condensing devices (13) are connected in series through pipelines, and the air outlet of the compressor (16) is connected to the inlet of the head end condensing device (13) through a pipeline, and the inlet of the circulation pipeline (20) is connected to the outlet of the tail end condensing device (13); The diversion assembly (4) includes a diversion cylinder and a plurality of diversion pipes (5), the diversion cylinder being a cylindrical structure with a cover at the bottom, the upper and lower ends of the diversion cylinder being fixedly connected to the water tank (3) and the heat-insulating shell (2), respectively, and the diversion pipes (5) are radially distributed in the diversion cylinder and are connected to the water tank (3); The gas diverter plate (6) is fixedly connected to the water tank (3) and the heat-insulating shell (2), respectively, and a plurality of diverter holes (7) are evenly distributed on the gas diverter plate (6); The detection component comprises a liquid level sensor (10) and two temperature sensors (11), the liquid level sensor (10) and the two temperature sensors (11) are both embedded in the water tank (3), the two temperature sensors (11) are respectively located at the upper and lower parts of the water tank (3), and the liquid level sensor (10) is located between the two temperature sensors (11); The circulation pipe (20) is connected in series with the inlet of the evaporator (15) through a throttling device, the outlet of the evaporator (15) and the air supply pipe are respectively connected to two inlets of the four-way valve (17), and the air inlet of the compressor (16) is connected to the outlet of the four-way valve (17).

2. The instant heat pump kitchen water heater according to claim 1, characterized in that: A cold water pipe is inserted into the bottom plate of the heat-insulating shell (2), and both ends of the cold water pipe pass through the diversion cylinder and the bottom plate of the outer shell (1) respectively. A hot water pump (14) is installed on the top of the heat-insulating shell (2), and the water inlet and outlet ends of the hot water pump (14) are respectively connected to an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to the water tank (3) and the outer shell (1).

3. The instant heat pump kitchen water heater according to claim 1, characterized in that: The control device comprises a controller (21) and a touch screen (22), wherein the touch screen (22) is embedded in the front sealing plate of the outer shell (1), the controller (21) is fixedly connected to the front sealing plate of the outer shell (1), and the controller (21) is electrically connected to the exhaust fan (8), the compressor (16), the four-way valve (17), the hot water pump (14) and the touch screen (22) through wires.

4. The instant heat pump kitchen water heater according to claim 1, characterized in that: An air collecting hood (18) is installed on the outer shell (1), an air supply pipe is installed at one end of the air collecting hood (18), and a filter is installed on the inner wall of the air supply pipe.

5. The instant heat pump kitchen water heater according to claim 1, characterized in that: An insulation board (12) is installed on the inner wall of the insulation shell (2), and a hot air pipe (19) is inserted into the insulation shell (2). One end of the hot air pipe (19) passes through the insulation board (12), and the other end is connected to the other inlet of the four-way valve (17).

6. The instant heat pump kitchen water heater according to claim 1, characterized in that: A protective filter (23) is installed on the air inlet of the exhaust fan (8), and the protective filter (23) is fixedly connected to the air inlet of the exhaust fan (8).

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