A condensate and heat recovery system and an air source heat pump water heater

Abstract

This invention proposes a condensate and heat energy recovery system and an air source heat pump water heater. The system includes: a hot water production module, an ice-making module, and a condensate collection device. The condenser is located on one side of the first evaporator. The condensate collection device includes a water collector and a condensate pipe. The water collector is located below the first evaporator, and the water collector and the ice-making tray are connected by the condensate pipe. This invention produces hot water through the hot water production module. With the help of the condensate collection device, the condensate produced by the hot water production module can be collected and transported to the ice-making module for ice making. At the same time, by placing the condenser on one side of the first evaporator, the heat energy of the ice-making module can be recovered and used for heat absorption in the first evaporator, thereby achieving efficient resource utilization and energy recycling.

Description

Technical Field

[0001] This utility model relates to the field of heat pump water heater technology, and in particular to a condensate and heat energy recovery system and an air source heat pump water heater. Background Technology

[0002] Air source heat pump water heaters are devices that use heat energy from the air to produce hot water, featuring high efficiency and energy saving. During operation, air source heat pump water heaters produce condensate, which contains a large amount of cold energy. This condensate is usually discharged directly, leading to a waste of water and energy resources. Furthermore, ice makers generate a large amount of heat energy during ice making; if this heat energy is not recovered and utilized, it will lead to energy waste and an increase in ambient temperature.

[0003] Currently, there is no commercially available technology that utilizes the condensate from air-source heat pump water heaters for ice making while simultaneously recovering the heat energy generated during the ice-making process to assist the operation of the air-source heat pump water heater. Therefore, how to efficiently utilize the condensate and the heat energy generated during the ice-making process is a technical problem that needs to be solved. Utility Model Content

[0004] To address the technical problem in existing technologies that condensate cannot be simultaneously recovered for ice making and the heat energy generated during ice making cannot be recovered to assist the operation of air source heat pump water heaters, this utility model provides a condensate and heat energy recovery system and an air source heat pump water heater.

[0005] The present invention adopts the following technical solution.

[0006] The first aspect of this utility model provides a condensate and heat recovery system, comprising:

[0007] A hot water production module includes a first compressor, a water-side heat exchanger, a first throttling device, and a first evaporator connected in sequence, wherein the water-side heat exchanger is connected to a cold water pipe and a hot water pipe;

[0008] An ice-making module includes an ice-making tray and a second compressor, a condenser, a second throttling device, and a second evaporator connected in sequence. The ice-making tray is located on one side of the second evaporator, and the condenser is located on one side of the first evaporator.

[0009] A condensate collection device includes a water collector and a condensate pipe. The water collector is located below the first evaporator, and the water collector and the ice-making tray are connected by the condensate pipe.

[0010] Preferably, the condenser is located below the first evaporator and on one side of the water collector.

[0011] Preferably, the condensers are staggered and arranged inside the first evaporator.

[0012] Preferably, the condensate collection device further includes a water pump and a water storage tank, wherein the water storage tank and the water pump are installed on the condensate pipe between the water collector and the ice-making tray.

[0013] Preferably, the water storage tank is connected to an inlet pipe equipped with a solenoid valve.

[0014] Preferably, a level switch is provided on the water storage tank.

[0015] Preferably, the condensate collection device further includes a water quality filter and a water path filter. The water quality filter is installed on the condensate pipe between the water collector and the water storage tank, and the water path filter is installed on the condensate pipe between the water storage tank and the water pump.

[0016] Preferably, the ice-making tray is provided with an ice-making outlet.

[0017] Preferably, the hot water generating module further includes a fan, which is located on one side of the first evaporator.

[0018] The second aspect of this utility model provides an air source heat pump water heater, including the condensate and heat recovery system described in the first aspect.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] Hot water is produced by the hot water generating module. The condensate collection device can collect the condensate generated by the hot water generating module and send it to the ice making module for ice making. At the same time, the condenser is set on the side of the first evaporator, so that the heat energy of the ice making module can be recovered and used for heat absorption in the first evaporator, thereby realizing the efficient use of resources and the recycling of energy.

[0021] In addition, placing the condenser below the first evaporator and on one side of the water collector can transfer the heat of the refrigerant in the condenser to the refrigerant in the first evaporator, thereby increasing the evaporation temperature of the first evaporator. At the same time, the heat of the refrigerant in the condenser can be transferred to the condensate in the water collector, preventing the condensate from freezing in the water collector.

[0022] By staggering the condensers inside the first evaporator, the heat of the refrigerant in the condenser can be efficiently transferred to the refrigerant in the first evaporator, thereby increasing the evaporation temperature of the first evaporator and thus improving the heating capacity and energy efficiency of the hot water module.

[0023] By setting up a water storage tank, the condensate collected by the water collector can be stored. The liquid level switch determines whether the liquid level in the water storage tank has reached the set level. If it has not reached the set level, the solenoid valve is opened and water is injected into the water storage tank through the water inlet pipe. Then the water pump is started to pump the water in the water storage tank into the ice making tray to make ice, which can solve the problem of insufficient condensate or no condensate.

[0024] By installing water filters and water path filters, the water in the condensate pipes can be filtered to prevent impurities from remaining in the ice.

[0025] By setting an ice-making outlet in the ice-making tray, it is convenient to take ice out of the ice-making tray;

[0026] By installing a fan, air can be blown onto the first evaporator, promoting airflow around it and improving heat exchange efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the condenser arrangement in Embodiment 1 of this utility model;

[0029] Figure 3 This is a schematic diagram of the condenser arrangement in Embodiment 2 of this utility model.

[0030] 1. First compressor; 2. Water-side heat exchanger; 3. First throttling device; 4. First evaporator; 5. Second compressor; 6. Condenser; 7. Second throttling device; 8. Second evaporator; 9. Water collector; 10. Water pump; 11. Water storage tank; 12. Liquid level switch; 13. Water filter; 14. Water circuit filter; 15. Second filter; 16. Four-way valve; 17. High-pressure switch; 18. Intake temperature sensor; 19. Exhaust temperature sensor; 20. Low-pressure switch; 21. Vapor-liquid separator; 22. Outlet water temperature sensor; 23. Inlet water temperature sensor; 24. First filter; 25. Fan; 26. Pipe temperature sensor; 27. Solenoid valve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are merely some embodiments of this utility model, and not all embodiments. Based on the spirit of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention.

[0033] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] like Figure 1 As shown, Embodiment 1 of this utility model provides a condensate and heat energy recovery system. A condensate collection device collects the condensate generated by the hot water module and supplies it to the ice-making module for ice making. The heat energy generated during the ice-making process is recovered and used in the heat exchange process of the hot water module, thereby achieving efficient resource utilization and energy recycling. The system includes:

[0038] The hot water production module includes a first compressor 1, a water-side heat exchanger 2, a first throttling device 3, and a first evaporator 4 connected in a closed loop in sequence. The water-side heat exchanger 2 is connected to a cold water pipe and a hot water pipe.

[0039] An ice-making module includes an ice-making tray and a second compressor 5, a condenser 6, a second throttling device 7, and a second evaporator 8 connected in a closed loop in sequence. The ice-making tray is located on one side of the second evaporator 8, and the condenser 6 is located on one side of the first evaporator 4.

[0040] The condensate collection device includes a water collector 9 and a condensate pipe. The water collector 9 is located below the first evaporator 4, and the water collector 9 and the ice-making tray are connected by the condensate pipe.

[0041] The condensate collection device is used to collect the condensate generated during the operation of the hot water module and transport it to the ice-making module.

[0042] The ice maker module uses condensate to make ice and generates heat energy during the ice-making process, which is then transferred to the first evaporator 4 of the hot water module.

[0043] An ice outlet is provided on the ice tray to discharge ice blocks. The ice blocks can be used for other purposes, such as seafood preservation, which can create additional value. At the same time, it avoids the random discharge of condensate or ice formation in the water collector 9, which would affect the reliability of the hot water module.

[0044] like Figure 2As shown, preferably but not limitingly, the condenser 6 is disposed below the first evaporator 4 and on one side of the water collector 9.

[0045] This arrangement allows the heat from the refrigerant in the condenser 6 to be transferred to the refrigerant in the first evaporator 4, increasing the evaporation temperature of the first evaporator 4. At the same time, the heat from the refrigerant in the condenser 6 can be transferred to the condensate in the water collector 9, preventing the condensate from freezing in the water collector 9.

[0046] Preferably, but not limitingly, the condensate collection device further includes a water pump 10 and a water storage tank 11. The water storage tank 11 and the water pump 10 are disposed on the condensate pipe between the water collector 9 and the ice-making tray. The water storage tank 11 is connected to an inlet pipe equipped with a solenoid valve 27.

[0047] As a further preferred but not limiting option, a level switch 12 is provided on the water storage tank 11.

[0048] When the hot water module is started, the level switch 12 determines whether the water level in the storage tank 11 has reached the set level. If it has, the water pump 10 is started to pump the water in the storage tank 11 into the ice-making tray. If it has not reached the set level, the solenoid valve 27 is opened to inject water into the storage tank 11 through the inlet pipe until the water level in the storage tank 11 reaches the set level. Then the solenoid valve 27 is closed and the water pump 10 is started again to pump the water in the storage tank 11 into the ice-making tray. This is used to solve the problem of insufficient condensate or no condensate production.

[0049] Preferably, but not limitingly, the condensate collection device further includes a water filter 13 and a water path filter 14. The water filter 13 is installed on the condensate pipe between the water collector 9 and the water storage tank 11, and the water path filter 14 is installed on the condensate pipe between the water storage tank 11 and the water pump 10.

[0050] The condensate is stored in the water tank 11 after passing through the water filter 13, and then transported to the ice-making module by the water pump 10.

[0051] Preferably, but not limitingly, the ice-making module further includes a second filter 15 disposed on the pipeline between the second throttling device 7 and the second evaporator 8, and on the pipeline between the second throttling device 7 and the condenser 6.

[0052] Preferably, but not limitingly, the condensate and heat recovery system further includes a four-way valve 16, a high-pressure switch 17, an intake temperature sensor 18, an exhaust temperature sensor 19, a low-pressure switch 20, a vapor-liquid separator 21, an outlet temperature sensor 22, an inlet temperature sensor 23, a first filter 24, a fan 25, a pipe temperature sensor 26, and a controller.

[0053] The first compressor 1, high pressure switch 17, four-way valve 16, vapor-liquid separator 21, and low pressure switch 20 are connected in a closed loop in sequence. The first filter 24 is installed on the pipeline between the first throttling device 3 and the first evaporator 4, and on the pipeline between the first throttling device 3 and the water-side heat exchanger 2. The pipeline between the first evaporator 4 and the water-side heat exchanger 2 is connected to the four-way valve 16.

[0054] The intake temperature sensor 18 is installed on the pipeline between the four-way valve 16 and the vapor-liquid separator 21; the exhaust temperature sensor 19 is installed on the pipeline between the first compressor 1 and the high-pressure switch 17; the water inlet temperature sensor 23 is installed on the cold water pipe; the water outlet temperature sensor 22 is installed on the hot water pipe; and the pipe temperature sensor 26 is installed on one side of the first evaporator 4.

[0055] The fan 25 is located on one side of the first evaporator 4;

[0056] The controller is connected to the solenoid valve 27, the level switch 12, the water pump 10, the four-way valve 16, the high-pressure switch 17, the intake temperature sensor 18, the exhaust temperature sensor 19, the low-pressure switch 20, the outlet temperature sensor 22, the inlet temperature sensor 23, the fan 25, and the pipe temperature sensor 26.

[0057] The controller coordinates the operation of the condensate collection device, ice-making module, and hot water-making module to ensure the stability and efficiency of the system.

[0058] like Figure 3 As shown, Embodiment 2 of this utility model provides a condensate and heat recovery system. Compared with Embodiment 1, in which the condenser 6 is located below the first evaporator 4 and on one side of the water collector 9, the condenser 6 in this embodiment is staggered inside the first evaporator 4, that is, the heat exchange tubes of the condenser 6 are staggered inside the first evaporator 4.

[0059] This arrangement enables efficient heat exchange between the refrigerant in the condenser 6 and the refrigerant in the first evaporator 4, thereby increasing the evaporation temperature of the first evaporator 4 and improving the heating capacity and energy efficiency of the hot water module.

[0060] Embodiment 3 of this utility model provides an air source heat pump water heater, including the condensate and heat recovery system described in Embodiment 1 or 2.

[0061] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0062] Hot water is produced by the hot water generating module. The condensate collection device can collect the condensate generated by the hot water generating module and send it to the ice making module for ice making. At the same time, the condenser is set on the side of the first evaporator, so that the heat energy of the ice making module can be recovered and used for heat absorption in the first evaporator, thereby realizing the efficient use of resources and the recycling of energy.

[0063] In addition, placing the condenser below the first evaporator and on one side of the water collector can transfer the heat of the refrigerant in the condenser to the refrigerant in the first evaporator, thereby increasing the evaporation temperature of the first evaporator. At the same time, the heat of the refrigerant in the condenser can be transferred to the condensate in the water collector, preventing the condensate from freezing in the water collector.

[0064] By staggering the condensers inside the first evaporator, the heat of the refrigerant in the condenser can be efficiently transferred to the refrigerant in the first evaporator, thereby increasing the evaporation temperature of the first evaporator and thus improving the heating capacity and energy efficiency of the hot water module.

[0065] By setting up a water storage tank, the condensate collected by the water collector can be stored. The liquid level switch determines whether the liquid level in the water storage tank has reached the set level. If it has not reached the set level, the solenoid valve is opened and water is injected into the water storage tank through the water inlet pipe. Then the water pump is started to pump the water in the water storage tank into the ice making tray to make ice, which can solve the problem of insufficient condensate or no condensate.

[0066] By installing water filters and water path filters, the water in the condensate pipes can be filtered to prevent impurities from remaining in the ice.

[0067] By setting an ice-making outlet in the ice-making tray, it is convenient to take ice out of the ice-making tray;

[0068] By installing a fan, air can be blown onto the first evaporator, promoting airflow around it and improving heat exchange efficiency.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A condensate and heat recovery system characterized by, include: A hot water production module includes a first compressor, a water-side heat exchanger, a first throttling device, and a first evaporator connected in sequence, wherein the water-side heat exchanger is connected to a cold water pipe and a hot water pipe; An ice-making module includes an ice-making tray and a second compressor, a condenser, a second throttling device, and a second evaporator connected in sequence. The ice-making tray is located on one side of the second evaporator, and the condenser is located on one side of the first evaporator. A condensate collection device includes a water collector and a condensate pipe. The water collector is located below the first evaporator, and the water collector and the ice-making tray are connected by the condensate pipe.

2. The condensate and heat recovery system according to claim 1, characterized in that: The condenser is located below the first evaporator and on one side of the water collector.

3. The condensate and heat recovery system according to claim 1, characterized in that: The condensers are staggered and arranged inside the first evaporator.

4. The condensate and heat recovery system according to claim 1, characterized in that: The condensate collection device also includes a water pump and a water storage tank, which are installed on the condensate pipe between the water collector and the ice-making tray.

5. A condensate and heat recovery system according to claim 4, characterized in that: The water storage tank is connected to an inlet pipe equipped with a solenoid valve.

6. A condensate and heat recovery system according to claim 4, characterized in that: A level switch is installed on the water storage tank.

7. A condensate and heat recovery system according to claim 4, characterized in that: The condensate collection device further includes a water quality filter and a water path filter. The water quality filter is installed on the condensate pipe between the water collector and the water storage tank, and the water path filter is installed on the condensate pipe between the water storage tank and the water pump.

8. A condensate and heat recovery system according to claim 1, characterized in that: The ice-making tray is equipped with an ice-making outlet.

9. A condensate and heat recovery system according to claim 1, characterized in that: The hot water production module also includes a fan, which is located on one side of the first evaporator.

10. An air-source heat pump water heater, characterized in that: Includes the condensate and heat recovery system as described in any one of claims 1-9.

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