A new air heat exchanger

Abstract

The utility model belongs to gas heat pump air conditioning technical field discloses a kind of novel air heat exchanger. Including two opposite exchange group, each exchange group includes refrigerant system air heat exchanger, cooling water system air heat exchanger;Refrigerant system air heat exchanger, cooling water system air heat exchanger inside two connection constitutes a whole, cooling water system air heat exchanger is set to inside;Two refrigerant system air heat exchangers are connected in parallel by liquid pipe header, gas pipe header;Two cooling water system air heat exchangers are connected in parallel by water inlet header, water outlet header;Two pipe lines are tapped on water outlet header: exhaust pipe A, exhaust pipe B;Two cooling water system air heat exchangers are connected exhaust port by exhaust pipe A, exhaust pipe B respectively. Improve the heat exchange efficiency of air heat exchanger when gas heat pump air conditioner refrigeration, and solve the problem of frost formation and defrosting when heat pump air conditioner heating.

Description

Technical Field

[0001] This utility model belongs to the field of gas heat pump air conditioning technology, and relates to a novel air heat exchanger. Background Technology

[0002] Gas-fired heat pump air conditioners use a gas engine to drive a compressor to circulate the refrigerant system. During cooling, the refrigerant system requires an air heat exchanger as a condenser to release heat, and during heating, it requires an air heat exchanger as an evaporator to absorb heat. Simultaneously, when the gas engine is running, the cooling water in the unit absorbs waste heat from the engine cylinder liners and exhaust gases, and this absorbed heat needs to be released into the air. Improperly designed air heat exchangers, such as placing the cooling water system air heat exchanger outside the refrigerant system air heat exchanger, or having a mismatch in height between the two systems, will reduce the overall operating efficiency of the unit. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a novel air heat exchanger. This invention optimizes the structure and shape of the air heat exchanger, improves the heat exchange efficiency of the air heat exchanger during cooling in a gas-fired heat pump air conditioner, and solves the problems of frosting and defrosting during heating in a heat pump air conditioner. Furthermore, it improves the methods for venting and replenishing cooling water in the cooling water system of a gas-fired heat pump air conditioner.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a novel air heat exchanger, comprising two exchanger groups arranged opposite to each other, each exchanger group including a refrigerant system air heat exchanger and a cooling water system air heat exchanger; the refrigerant system air heat exchanger and the cooling water system air heat exchanger are connected to form a whole, with the cooling water system air heat exchanger facing inward; the two refrigerant system air heat exchangers are connected in parallel through a liquid pipe manifold and a gas pipe manifold; the two cooling water system air heat exchangers are connected in parallel through an inlet water manifold and an outlet water manifold; two pipes are branched on the outlet water manifold: exhaust pipe A and exhaust pipe B; the two cooling water system air heat exchangers are respectively connected to exhaust ports through exhaust pipe A and exhaust pipe B.

[0005] Furthermore, the air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system are connected and fixed by fasteners; and protective buffer rubber is installed between the air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system.

[0006] Furthermore, the new type of air heat exchanger is applied to gas-fired heat pump air conditioners. The air heat exchanger for the gas refrigerant system and the air heat exchanger for the cooling water system are both L-shaped, enabling the heat pump air conditioner to form a four-sided air intake configuration.

[0007] Furthermore, the height of the air heat exchanger in the cooling water system is 2 / 3 the height of the air heat exchanger in the refrigerant system.

[0008] Furthermore, in both the refrigerant system air heat exchanger and the cooling water system air heat exchanger of the heat exchanger unit, the refrigerant system air heat exchanger is located on the air inlet side.

[0009] Furthermore, a cooling water inlet is connected to the outlet manifold.

[0010] Furthermore, the fastener is C-shaped, model number: DSR24360253000.

[0011] The advantages of this utility model compared with the prior art are:

[0012] This utility model provides a novel air heat exchanger; by designing the air heat exchanger of the gas heat pump air conditioner as a four-sided air intake form, and placing the cooling water heat dissipation air heat exchanger inside the refrigerant system air heat exchanger; it improves the heat exchange efficiency of the air heat exchanger when the gas heat pump air conditioner is cooling, and solves the problems of frosting and defrosting when the heat pump air conditioner is heating. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the structure of a novel air heat exchanger according to this utility model.

[0015] Figure 2 This is a schematic diagram of an air heat exchanger.

[0016] Figure 3 This is a schematic diagram of the air intake direction of an air heat exchanger.

[0017] Figure 4 This is a schematic diagram of the working principle of a gas-fired heat pump unit.

[0018] In the diagram: 1. Air heat exchanger A for refrigerant system; 2. Air heat exchanger B for refrigerant system; 3. Air heat exchanger A for cooling water system; 4. Air heat exchanger B for cooling water system; 5. Fastener; 6. Protective buffer rubber; 7. Liquid manifold; 8. Gas manifold; 9. Water inlet manifold; 10. Water outlet manifold; 11. Exhaust pipe A; 12. Exhaust pipe B; 13. Exhaust interface; 14. Cooling water inlet. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.

[0020] Example 1

[0021] A new type of air heat exchanger, such as Figure 1-2 As shown, it includes two heat exchanger groups arranged opposite each other. Each heat exchanger group includes a refrigerant system air heat exchanger and a cooling water system air heat exchanger. The refrigerant system air heat exchanger and the cooling water system air heat exchanger are connected to form a whole, with the cooling water system air heat exchanger facing inward. The two refrigerant system air heat exchangers are connected in parallel through a liquid manifold 7 and an air manifold 8. The two cooling water system air heat exchangers are connected in parallel through an inlet manifold 9 and an outlet manifold 10. Two pipes are connected to the outlet manifold 10: an exhaust pipe A11 and an exhaust pipe B12. The two cooling water system air heat exchangers are connected to an exhaust port 13 through exhaust pipes A11 and B12, respectively.

[0022] The air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system are connected and fixed by fasteners 5; and protective buffer rubber 6 is installed between the air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system.

[0023] The new type of air heat exchanger is applied to gas heat pump air conditioners. Both the gas refrigerant system air heat exchanger and the cooling water system air heat exchanger are L-shaped, enabling the heat pump air conditioner to form a four-sided air intake configuration.

[0024] The height of the air heat exchanger in the cooling water system is 2 / 3 the height of the air heat exchanger in the refrigerant system.

[0025] In both the refrigerant system air heat exchanger and the cooling water system air heat exchanger of the heat exchanger unit, the refrigerant system air heat exchanger is located on the air inlet side.

[0026] The cooling water inlet 14 is connected to the water outlet manifold 9.

[0027] Fastener 5 is C-shaped, model: DSR24360253000.

[0028] Example 2

[0029] A novel air heat exchanger is disclosed, wherein both the refrigerant system air heat exchanger and the cooling water system air heat exchanger are L-shaped, enabling the heat pump air conditioner to achieve a four-sided air intake configuration. Both the refrigerant system air heat exchanger and the cooling water system air heat exchanger are positioned on the air intake side. The height of the cooling water system air heat exchanger is two-thirds the height of the refrigerant system air heat exchanger.

[0030] In actual operation, existing gas-fired heat pump units release heat from the refrigerant system into the air through the refrigerant system air heat exchanger during cooling, and simultaneously release engine waste heat into the air through the cooling water system air heat exchanger.

[0031] When heating, existing gas-fired heat pump units absorb heat from the air into the refrigerant system through the refrigerant system air heat exchanger, while simultaneously releasing engine waste heat into the air through the cooling water system air heat exchanger. This release of engine waste heat into the air by the cooling water system air heat exchanger ensures that the refrigerant system air heat exchanger does not frost up and improves the efficiency of the refrigerant system air heat exchanger in absorbing heat from the air during heating.

[0032] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A novel air heat exchanger, characterized in that, It includes two heat exchanger groups arranged in opposite directions, each heat exchanger group including a refrigerant system air heat exchanger and a cooling water system air heat exchanger; The air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system are connected to form a whole, with the air heat exchanger of the cooling water system facing inward; the two air heat exchangers of the refrigerant system are connected in parallel through the liquid pipe manifold (7) and the gas pipe manifold (8); the two air heat exchangers of the cooling water system are connected in parallel through the inlet water manifold (9) and the outlet water manifold (10); the outlet water manifold (10) is connected to two pipes: exhaust pipe A (11) and exhaust pipe B (12); the two air heat exchangers of the cooling water system are connected to the exhaust port (13) through exhaust pipe A (11) and exhaust pipe B (12) respectively.

2. The novel air heat exchanger as described in claim 1, characterized in that, The air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system are connected and fixed by fasteners (5); and protective buffer rubber (6) is installed between the air heat exchanger of the refrigerant system and the air heat exchanger of the cooling water system.

3. The novel air heat exchanger as described in claim 1, characterized in that, The air heat exchangers for the gas refrigerant system and the air heat exchangers for the cooling water system are both L-shaped.

4. The novel air heat exchanger as described in claim 1, characterized in that, The height of the air heat exchanger in the cooling water system is 2 / 3 the height of the air heat exchanger in the refrigerant system.

5. A novel air heat exchanger as described in claim 1, characterized in that, In both the refrigerant system air heat exchanger and the cooling water system air heat exchanger of the heat exchanger unit, the refrigerant system air heat exchanger is located on the air inlet side.

6. A novel air heat exchanger as described in claim 1, characterized in that, The cooling water inlet (14) is connected to the water outlet manifold (10).

7. A novel air heat exchanger as described in claim 2, characterized in that, The fastener (5) is C-shaped.

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