Heat pump system using one-way valve group

Abstract

The heat pump system comprises a compressor, a needle valve, a gas-liquid separator, a four-way reversing valve, a heat exchanger and an electronic expansion valve, the side end of the compressor is connected with a main path electronic expansion valve, the side end of the main path electronic expansion valve is connected with the four-way reversing valve, the side end of the four-way reversing valve is connected with a one-way valve, and the side end of the one-way valve is connected with a heat exchanger. The compressor is communicated with a one-way valve, the side end of the one-way valve is connected with a needle valve, the side end of the needle valve is provided with an economizer and a bidirectional liquid storage tank, the compressor is further communicated with a gas-liquid separator, the side end of the economizer is communicated with an electronic expansion valve, the side end of the electronic expansion valve is communicated with a heat exchanger, and the side end of the heat exchanger is communicated with a bidirectional drying filter. According to the heat pump system using the one-way valve bank, the purpose of controlling the one-way valve bank is achieved through structural arrangement.

Description

Technical Field

[0001] The invention relates to the technical field of heat pump systems, in particular to a heat pump system using a one-way valve group. Background Art

[0002] In the current situation of tightening energy supply and increasing environmental protection requirements, people are constantly looking for new energy sources that are both energy-saving and environmentally friendly. Heat pumps are one of these new energy sources. Since heat pumps can transfer low-temperature heat energy to high-temperature heat energy, they can make full use of the heat in natural resources and waste heat resources, effectively saving the primary energy required for civil and industrial use. As a new heating technology, heat pumps have not only received widespread attention, but have also been rapidly applied to practical projects and have achieved good results.

[0003] The current control method is relatively complicated. The system control using a one-way valve group is simple and needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a heat pump system using a one-way valve group to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat pump system using a one-way valve group, comprising a compressor, a needle valve, a gas-liquid separator, a four-way reversing valve, a heat exchanger and an electronic expansion valve, wherein the side end of the compressor is connected to a main electronic expansion valve, the side end of the main electronic expansion valve is connected to a four-way reversing valve, the side end of the four-way reversing valve is connected to a one-way valve, the side end of the one-way valve is connected to a needle valve, the side end of the needle valve is provided with an economizer and a two-way liquid storage tank, and the compressor is also connected to a gas-liquid separator;

[0006] The side end of the economizer is connected with an electronic expansion valve, the side end of the electronic expansion valve is connected with a heat exchanger, and the side end of the heat exchanger is connected with a bidirectional drying filter.

[0007] Specifically, the compressor adopts a double-pass design.

[0008] Specifically, the gas-liquid separator adopts a columnar design.

[0009] Specifically, the heat exchanger is arranged in a bent pipe.

[0010] Specifically, the compressor, needle valve, gas-liquid separator, four-way reversing valve, heat exchanger, electronic expansion valve, economizer, main electronic expansion valve, two-way drying filter, one-way valve and two-way liquid storage tank are connected as a whole.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] When in use, the structure is relatively stable according to the layout shown in the figure, the overall vibration of the unit is small, and the failure rate is low. Currently, most of the heat pump systems with air-injection and reheat increase on the market use a four-way reversing valve, two electromagnetic expansion valves, two one-way valves and an air-injection expansion valve to control the system to achieve heating and cooling adjustments, which can make control operations simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0014] In the figure: 1- compressor, 2- needle valve, 3- gas-liquid separator, 4- four-way reversing valve, 5- heat exchanger, 6- electronic expansion valve, 7- economizer, 8- main electronic expansion valve, 9- two-way drying filter, 10- one-way valve, 11- two-way liquid storage tank. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1 The present invention provides a technical solution: a heat pump system using a one-way valve group, a heat pump system using a one-way valve group, comprising a compressor 1, a needle valve 2, a gas-liquid separator 3, a four-way reversing valve 4, a heat exchanger 5 and an electronic expansion valve 6, the side end of the compressor 1 is connected to a main electronic expansion valve 8, the side end of the main electronic expansion valve 8 is connected to a four-way reversing valve 4, the side end of the four-way reversing valve 4 is connected to a one-way valve 10, the side end of the one-way valve 10 is connected to a needle valve 2, the side end of the needle valve 2 is provided with an economizer 7 and a two-way liquid storage tank 11, and the compressor 1 is also connected to the gas-liquid separator 3;

[0017] The side end of the economizer 7 is connected to the electronic expansion valve 6 , the side end of the electronic expansion valve 6 is connected to the heat exchanger 5 , and the side end of the heat exchanger 5 is connected to a two-way drying filter 9 .

[0018] Compressor 1 adopts a double-pass design.

[0019] The gas-liquid separator 3 adopts a columnar design.

[0020] The heat exchanger 5 is arranged in a bent pipe.

[0021] The compressor 1, the needle valve 2, the gas-liquid separator 3, the four-way reversing valve 4, the heat exchanger 5, the electronic expansion valve 6, the economizer 7, the main electronic expansion valve 8, the two-way drying filter 9, the one-way valve 10 and the two-way liquid storage tank 11 are connected as a whole.

[0022] Among them, the compressor 1, the needle valve 2, the gas-liquid separator 3, the four-way reversing valve 4, the heat exchanger 5, the electronic expansion valve 6, the economizer 7, the main electronic expansion valve 8, the two-way drying filter 9, the one-way valve 10 and the two-way liquid storage tank 11 are connected as a whole, the compressor 1 performs compression processing, and the gas-liquid separator 3 is used for gas-liquid separation, the four-way reversing valve 4 performs docking conversion, the heat exchanger 5 performs heat exchange processing, the two-way liquid storage tank 11 performs storage work, the electronic expansion valve 6 and the main electronic expansion valve 8 are set to facilitate pressure release control work, and the two-way drying filter 9 performs drying and filtering work.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat pump system using a one-way valve group, Features: The invention comprises a compressor (1), a needle valve (2), a gas-liquid separator (3), a four-way reversing valve (4), a heat exchanger (5) and an electronic expansion valve (6); the side end of the compressor (1) is connected to a main electronic expansion valve (8); the side end of the main electronic expansion valve (8) is connected to a four-way reversing valve (4); the side end of the four-way reversing valve (4) is connected to a check valve (10); the side end of the check valve (10) is connected to a needle valve (2); the side end of the needle valve (2) is provided with an economizer (7) and a two-way liquid storage tank (11); the compressor (1) is also connected to the gas-liquid separator (3); The side end of the economizer (7) is connected to an electronic expansion valve (6), the side end of the electronic expansion valve (6) is connected to a heat exchanger (5), and the side end of the heat exchanger (5) is connected to a bidirectional drying filter (9).

2. A heat pump system using a one-way valve assembly according to claim 1, Features: The compressor (1) adopts a double-pass design.

3. A heat pump system using a one-way valve assembly according to claim 2, Features: The gas-liquid separator (3) adopts a columnar design.

4. A heat pump system using a one-way valve assembly according to claim 3, Features: The heat exchanger (5) is arranged in a bent pipe.

5. A heat pump system using a one-way valve assembly according to claim 4, Features: The compressor (1), needle valve (2), gas-liquid separator (3), four-way reversing valve (4), heat exchanger (5), electronic expansion valve (6), economizer (7), main electronic expansion valve (8), bidirectional drying filter (9), one-way valve (10) and bidirectional liquid storage tank (11) are arranged in an integrally connected manner.

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