CN211503315U

CN211503315U - Heat pump for washing machine

Info

Publication number: CN211503315U
Application number: CN201921557992.2U
Authority: CN
Inventors: 蒙国春
Original assignee: Suzhou Jiawa Intelligent Technology Co ltd
Current assignee: Suzhou Jiawa Intelligent Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-09-15
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to a domestic appliance field. The utility model provides a heat pump for washing machine, including using pipeline series connection's compressor, condenser, choke valve and evaporimeter in proper order, the cooler is installed to the series connection in the heat pump. The heat pump transfers heat by vaporization and liquefaction of a refrigerant. The cooler cools the refrigerant in the working process of the heat pump so as to ensure that the temperature of the refrigerant entering the compressor does not exceed the standard, thereby ensuring the safety of the heat pump system. 1. The utility model adds the cooler in the heat pump system to continuously cool the refrigerant in the operation process, thereby ensuring that the temperature of the refrigerant does not exceed the standard in the circulation process and ensuring the continuous and safe operation of the heat pump system; 2. the utility model discloses heat pump system adopts the mode of water-cooling jar to cool off the refrigerant, simple structure, and the cooling is effectual, and use cost is low.

Description

Heat pump for washing machine

Technical Field

The utility model relates to a domestic appliance field especially relates to domestic washing machine's spare part.

Background

The heat pump is a device for transferring heat of a low-level heat source to a high-level heat source, and is also a new energy technology which is concerned around the world. Heat pumps generally consist of four parts: compressor, condenser, choke valve, evaporimeter. The working process is as follows: a low-temperature low-pressure liquid refrigerant (for example, freon) first absorbs heat from a high-temperature heat source (for example, normal-temperature air) in an evaporator (for example, an air conditioning indoor unit) and is gasified into low-pressure steam. The refrigerant gas is then compressed in the compressor to a high temperature and pressure vapor which is condensed in a condenser to a high pressure liquid by cooling with a low temperature heat source (e.g., cooling water). Then the refrigerant is throttled into low-temperature low-pressure liquid refrigerant by a throttling element (a capillary tube, a thermostatic expansion valve, an electronic expansion valve and the like). Thus, a refrigeration cycle is completed. In the cycle process of the heat pump operation, the temperature of the refrigerant can continuously rise, and in order to ensure the safety of the system, the temperature of the refrigerant can not be too high by generally reducing the cycle number of the heat pump system. This approach seriously affects the continuity of operation of the heat pump system and requires improvement of the system.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can last heat pump system of safety cycle work, the utility model provides a following technical scheme:

a heat pump for a washing machine comprises a compressor, a condenser, a throttle valve and an evaporator which are sequentially connected in series by using pipelines, wherein a cooler is installed in the heat pump in series. The heat pump transfers heat by adopting the gasification and liquefaction of a refrigerant. The cooler cools the refrigerant in the working process of the heat pump so as to ensure that the temperature and the pressure of the refrigerant entering the compressor do not exceed the standard, thereby ensuring the safety of the heat pump system.

As an optimized scheme of the utility model, the cooler series install in the condenser with between the choke valve.

As another preferred scheme of the utility model, the cooler is a water-cooling tank.

As another preferred scheme of the utility model, pipeline between condenser and the choke valve passes the water-cooling jar, be equipped with water-cooling jar water inlet and water-cooling jar delivery port on the water-cooling jar. The water in the water-cooling tank is flowing water, the water continuously enters cold water to cool a refrigerant, and the water absorbing heat is discharged out of the water-cooling tank to take away the heat.

As another preferred scheme of the utility model, the pipeline in the water-cooling tank is the heliciform pipeline. The spiral pipeline increases the contact area of the pipeline and water, and improves the heat transfer efficiency.

As another preferred scheme of the utility model, the pipeline material in the water-cooling jar is copper. The copper has very high heat conductivity coefficient, is used for heat exchange between a refrigerant and water, and has very high efficiency.

As another preferred embodiment of the present invention, the condenser of the heat pump is provided with a condenser heating fin, and the evaporator of the heat pump is provided with an evaporator cooling fin.

As another preferred scheme of the utility model, the condenser and the evaporator of the heat pump are connected in series to form the air duct of the washing machine drying system. The air duct realizes two functions of gas refrigeration, liquid removal and gas heating and temperature rise.

As the utility model discloses a preferred scheme is again, the one end of evaporimeter is connected in the air outlet of fan, the air intake of fan passes through the intake stack and connects in the cylinder, the fan passes through motor drive and rotates, the one end of condenser is equipped with out the tuber pipe way, it connects in the cylinder to go out the tuber pipe way.

As another preferred scheme of the utility model, oil water separator is installed to the bottom of evaporimeter. The oil-water separator is mainly used for purifying and separating dry cleaning solvent during dry cleaning.

The utility model has the advantages that:

1. the utility model adds the cooler in the heat pump system to continuously cool the refrigerant in the operation process, thereby ensuring that the temperature of the refrigerant does not exceed the standard in the circulation process and ensuring the continuous and safe operation of the heat pump system;

2. the heat pump system of the utility model cools the refrigerant by adopting the water-cooling tank, has simple structure, good cooling effect and low use cost;

3. the utility model discloses the heat pump can realize the continuous operation through increasing the cooler device, can realize the fast drying of washing machine during operation, and than current heat pump-type drying-machine, drying efficiency has improved more than 5 times.

Drawings

Fig. 1 is a first view structural diagram of a washing machine using the heat pump of the present invention;

FIG. 2 is a second view structure diagram of a washing machine using the heat pump of the present invention;

fig. 3 is a schematic view of a first view structure of the present invention;

fig. 4 is a schematic view of a second view structure of the present invention.

The reference numbers in the figures are:

1-compressor 11-refrigerant tank 2-condenser

21-condenser heating fin 3-throttle valve 4-evaporator

41-evaporator refrigeration fin 5-water cooling tank 51-water cooling tank water inlet

52-water cooling tank water outlet 53-refrigerant inlet 54-refrigerant outlet

61-fan 62-motor 63-oil-water separator

64-air inlet pipeline 65-air outlet pipeline 7-roller

Detailed Description

The process embodiments are described in detail below to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to thereby define the scope of the invention more clearly.

Use as figure 1 the utility model discloses the first visual angle structure schematic diagram of washing machine of heat pump, figure 2 use the utility model discloses washing machine second visual angle structure schematic diagram, the attached 3 of heat pump the utility model discloses first visual angle structure schematic diagram and attached 4 the utility model discloses second visual angle structure schematic diagram is shown, the utility model relates to a heat pump for washing machine, include through pipeline series connection compressor 1 in proper order, condenser 2, choke valve 3 and evaporimeter 4, refrigerant jar 11 is installed to one side of compressor 1, is equipped with the refrigerant in the refrigerant jar 11, and refrigerant jar 11 passes through the pipe connection with compressor 1, provides the refrigerant that work needs for the heat pump system. The refrigerant is mainly Freon.

A water-cooling tank 5 is connected between the condenser 2 and the throttle valve 3, and the water-cooling tank 5 is used as a cooler of the heat pump system. The water-cooled temperature reduction tank 5 is provided with a water-cooled temperature reduction tank water inlet 51 and a water-cooled temperature reduction water outlet 52, water in the water-cooled temperature reduction tank 5 is intermittently flowing water, cold water is intermittently injected, and hot water is discharged. The pipeline between the condenser 2 and the throttle valve 3 passes through the water-cooling tank 5, and the pipeline in the water-cooling tank 5 is a spiral copper pipeline. The two ends of the copper pipe are respectively a refrigerant inlet 53 and a refrigerant outlet 54.

The condenser 2 is provided with condenser heating fins 21, and the evaporator 4 is provided with evaporator cooling fins 41. The evaporator 4 has a fan 61 and a motor 62 mounted at one end thereof, and the motor 62 drives the fan 61 to rotate. The air inlet of the fan 61 is connected to the drum 7 through an air inlet duct 64, and the air outlet of the fan 61 is connected to one end of the evaporator 4. An air outlet pipeline 65 is arranged at one end of the condenser 2, and the other end of the air outlet pipeline 65 is connected to the roller 7. An oil-water separator 63 is installed at the bottom of the evaporator 4 at the end opposite to the fan 61.

The fan 61, the evaporator cooling fin 41, the condenser heating fin 21 and the drum 7 form an air duct system for drying operation of the washing machine. The compressor 1, the condenser 2, the throttle valve 3, the evaporator 4 and the water-cooled temperature reduction tank 5 form a heat pump system of the washing machine.

The working flow of the heat pump is as follows: the compressor 1 sends high-pressure Freon gas to the condenser 2, the high-temperature high-pressure Freon gas is condensed and liquefied in the condenser 2 to become high-pressure liquid Freon, and a large amount of heat is released in the condenser 2, so that the temperature of heating fins of the condenser in the condenser 2 is very high; the high-pressure liquid Freon passes through the cold water cooling tank 5, the temperature of the Freon is further reduced, the cooled high-pressure liquid Freon becomes low-temperature low-pressure Freon liquid after passing through the throttle valve 3, the low-temperature low-pressure Freon liquid forms low-pressure Freon steam after passing through the evaporator 4, and a large amount of heat is absorbed on the evaporator cooling fins 41 of the evaporator 4, so that the temperature of the evaporator cooling fins 41 is very low; the low-pressure freon steam is sent to the compressor 1, and after being compressed by the compressor 1, high-pressure freon gas is formed and sent to the condenser 2, and the circulation is carried out.

The heat pump cycle operates such that the condenser heating fins 21 are at a high temperature and the evaporator cooling fins 42 are at a low temperature. When the washing machine is used for drying, the fan 61 pumps out wet air in the drum 7 and pumps the wet air into the evaporator 4 through the air inlet pipeline 62, when the wet hot air passes through the evaporator refrigeration fins 41 in the evaporator 4, moisture in the wet hot air and a dry-cleaning solvent are liquefied, mixed liquid converged by the bottom metal plate groove flows into the oil-water separator 63, water passes through the drainage pipeline under the separation effect of the oil-water separator 63 and is directly discharged to the outside of the washing machine, and the dry-cleaning solvent passes through the pipeline and is recovered into the dry-cleaning solvent storage tank. The wet hot air is liquefied by the evaporator 4 to become dry air, the dry air continuously flows into the condenser 2, passes through the condenser heating fins 21 in the condenser 2 to become dry hot air, the dry hot air returns to the drum 7 from the air outlet pipe 65 to take out moisture or dry cleaning solvent on the clothes, passes through the fan 61 again, the evaporator 4 and the condenser 2, and returns to the drum 7, and the circulation is repeated, so that the clothes are dried.

The above description is only one of the embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can be covered by the present invention without changing or replacing the embodiments as contemplated by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a heat pump for washing machine, includes compressor, condenser, choke valve and the evaporimeter that uses the pipeline series connection in proper order, its characterized in that: the heat pump is characterized in that a cooler is installed in the heat pump in series, the cooler is installed between the condenser and the throttling valve in series, and the cooler is a water-cooling tank.

2. A heat pump for a washing machine according to claim 1, characterized in that: the pipeline between condenser and the choke valve passes through the water-cooling tank, be equipped with water-cooling tank water inlet and water-cooling tank delivery port on the water-cooling tank.

3. A heat pump for a washing machine according to claim 2, characterized in that: and the pipeline in the water-cooling tank is a spiral pipeline.

4. A heat pump for a washing machine according to claim 2, characterized in that: and the pipeline in the water-cooling tank is made of copper.

5. A heat pump for a washing machine according to claim 1, characterized in that: and a condenser heating fin is arranged in a condenser of the heat pump, and an evaporator refrigerating fin is arranged in an evaporator of the heat pump.

6. A heat pump for a washing machine according to claim 5, wherein: the condenser and the evaporator of the heat pump are connected in series to form an air duct of the washing machine drying system.

7. A heat pump for a washing machine according to claim 6, wherein: the one end of evaporimeter is connected in the air outlet of fan, the air intake of fan passes through the intake stack and connects in the cylinder, the fan passes through motor drive and rotates, the one end of condenser is equipped with the air-out pipeline, the air-out pipeline is connected in the cylinder.

8. A heat pump for a washing machine according to claim 7, wherein: an oil-water separator is arranged at the bottom of the evaporator.