Dual-mode self-adaptive efficient tank

Abstract

The utility model relates to a dual-mode self-adaptive efficient tank which is based on an existing efficient tank structure and further comprises a second opening formed in the upper portion of an inner cylinder, a third opening formed in the upper portion of a liquid pipe and a first one-way valve arranged at the second opening, and the first one-way valve only allows refrigerants to flow out of the inner cylinder. And the second one-way valve is arranged at the third opening and only allows the refrigerant to flow out from the liquid pipe to the inner cylinder. According to the dual-mode self-adaptive efficient tank, efficient self-adaption of a refrigerating mode and a heating mode is achieved, the heat exchange efficiency and the performance of a compressor are cooperatively improved, the reliability and the energy efficiency of a system are optimized, and the dual-mode self-adaptive efficient tank is suitable for occasions such as household air conditioners and commercial heat pumps.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning heat pump technology, and in particular to a dual-mode adaptive high-efficiency tank. Background Technology

[0002] In an air conditioning heat pump system, the compressor outputs a high-temperature, high-pressure gaseous refrigerant, which then flows through the first heat exchanger and becomes a low-temperature, high-pressure refrigerant. After being throttled and depressurized by the throttling component, the high-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. Subsequently, the low-temperature, low-pressure gas-liquid mixture flows through the second heat exchanger and vaporizes to form a gaseous refrigerant, which finally flows back to the compressor.

[0003] In the prior art, such as the high-efficiency shell-and-shell heat exchanger provided by Chinese Patent (CN207163267U), it includes an inlet pipe, an inlet pipe cap, a clamp, a coil inlet connector, a coil outlet connector, a refrigerant outlet pipe, a valve core, an upper end cover, a cylinder, an inner liner, a baffle, a lower end cover, mounting feet, and a coil. The top and bottom of the cylinder are respectively provided with an upper end cover and a lower end cover, which are sealed to form a whole. A spiral coil is provided inside the cylinder. The lower end inlet of the coil is connected to the coil inlet connector located outside the lower end of the cylinder, and the upper end outlet of the coil is connected to the coil outlet connector located outside the upper end of the cylinder. An inlet pipe connected to the inside of the cylinder is connected to the upper end of the cylinder. The refrigerant outlet pipe passes through the cylinder from the upper end cover. The inlet end of the refrigerant outlet pipe with a slope is located at the bottom of the cylinder, and the outlet end is located at the upper end of the upper end cover.

[0004] However, the high-efficiency tank with this design has the drawback of poor heat exchange efficiency, so the device needs to be optimized. Utility Model Content

[0005] Based on this, the purpose of this utility model is to overcome the defects or deficiencies of the prior art and provide a dual-mode adaptive high-efficiency tank.

[0006] A dual-mode adaptive high-efficiency tank includes an inner cylinder, an outer cylinder sleeved around the outer periphery of the inner cylinder, an upper end cover disposed at the top of the outer cylinder and the inner cylinder, a lower end cover disposed at the bottom of the outer cylinder and the inner cylinder, and a liquid pipe disposed within the inner cylinder, wherein one end of the liquid pipe is disposed within the inner cylinder and the other end passes through the upper end cover and is disposed outside; a first opening disposed below the inner cylinder, a refrigerant inlet and outlet disposed above the outer cylinder, a coil disposed between the inner cylinder and the outer cylinder and spirally arranged around the inner cylinder, and a water inlet and a water outlet disposed on the outer cylinder, wherein the two ends of the coil are respectively connected to the water inlet and the water outlet; and a second opening disposed above the inner cylinder.

[0007] Compared with the prior art, the present invention provides a dual-mode adaptive high-efficiency tank. In the cooling mode, the liquid level of the liquid refrigerant is increased, which increases the contact area between the liquid refrigerant and the coil, thereby improving the heat exchange efficiency of the high-efficiency tank.

[0008] In one embodiment, a third opening is also provided above the liquid conduit.

[0009] In one embodiment, a first one-way valve is provided at the second opening, which only allows refrigerant to flow out from the inner cylinder.

[0010] In one embodiment, a second one-way valve is also provided at the third opening, the second one-way valve only allowing refrigerant to flow from the liquid pipe to the inner cylinder.

[0011] In one embodiment, the lower opening of the liquid tube is configured as an inclined surface, and the inclined surface forms an acute angle with the axis of the liquid tube.

[0012] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the high-efficiency tank structure of this utility model;

[0014] Figure 2 The direction indicated by the middle arrow is the flow path of the refrigerant in the high-efficiency tank of this utility model in refrigeration mode;

[0015] Figure 3 The direction indicated by the middle arrow is the flow path of the refrigerant in the heating mode of the high-efficiency tank of this invention. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings.

[0017] like Figure 1 As shown, a high-efficiency tank of this utility model includes an inner cylinder 10, an outer cylinder 20 sleeved around the outer periphery of the inner cylinder 10, an upper end cap 30 disposed at the top of the outer cylinder 20 and the inner cylinder 10, a lower end cap 40 disposed at the bottom of the outer cylinder 20 and the inner cylinder 10, and a liquid pipe 50 disposed inside the inner cylinder 10, wherein one end of the liquid pipe 50 is disposed inside the inner cylinder 10, and the other end passes through the upper end cap 30 and is disposed outside; a first opening 11 disposed below the inner cylinder 10, a refrigerant inlet / outlet 21 disposed above the outer cylinder 20, a coil 60 disposed between the inner cylinder 10 and the outer cylinder 20 and spirally disposed around the inner cylinder, and a water inlet (not shown) and a water outlet (not shown) disposed on the outer cylinder 20, wherein the two ends of the coil 60 are respectively connected to the water inlet and the water outlet.

[0018] When the air conditioning heat pump system is in cooling mode, the low-temperature, low-pressure gas-liquid mixture of refrigerant, after being throttled by the throttling component, enters the high-efficiency tank from the upper end of the liquid pipe 50. At this time, the gaseous refrigerant enters the cavity formed by the inner cylinder 10 and the outer cylinder 20 from the connection port below the inner cylinder 10, and exchanges heat with the heat exchange medium in the coil 60. Then, it flows out to the compressor from the refrigerant inlet / outlet 21 above the outer cylinder 20. The liquid refrigerant is stored in the high-efficiency tank. After exchanging heat with the heat exchange medium in the coil 60, the liquid refrigerant becomes gaseous and then also flows out to the compressor from the refrigerant inlet / outlet 21 above the outer cylinder 20.

[0019] In order to increase the liquid level of the liquid refrigerant in the high-efficiency tank and increase the contact area between the liquid refrigerant and the coil 60, a second opening 12 is provided above the inner cylinder 10.

[0020] In order to further increase the suction pressure of the compressor, reduce the power consumption of the compressor, and thus improve the working efficiency of the compressor, a third opening 51 is provided above the liquid pipe 50.

[0021] like Figure 3 As shown, when the air conditioning heat pump system is in heating mode, the high-temperature and high-pressure gaseous refrigerant after being processed by the compressor enters the high-efficiency tank from the refrigerant inlet 21. At this time, in order to prevent the high-temperature and high-pressure gaseous refrigerant from directly entering the inner cylinder 10 from the second opening 12 and exchanging heat with the subcooled liquid in the liquid pipe 50, thus affecting the system efficiency, a first one-way valve 13 is provided at the second opening 12. The first one-way valve 13 only allows the refrigerant to flow out from the inner cylinder 10.

[0022] Furthermore, a second one-way valve 52 is provided at the third opening 51, which only allows refrigerant to flow from the liquid pipe 50 to the inner cylinder 10.

[0023] Furthermore, it also includes a capacitive sensor (not shown) for real-time monitoring of liquid level, the capacitive sensor being disposed on the inner wall of the outer cylinder 20.

[0024] Furthermore, to optimize the flow direction, the lower opening of the liquid pipe 50 is configured with an inclined surface, which forms an acute angle with the axis of the liquid pipe 50. Specifically, the acute angle is 45°.

[0025] Compared with existing technologies, this utility model provides a dual-mode adaptive high-efficiency tank that achieves efficient adaptation between cooling and heating modes, as well as synergistic improvement in heat exchange efficiency and compressor performance. The system reliability and energy efficiency are optimized, making it suitable for scenarios such as household air conditioners and commercial heat pumps, and giving it significant market competitiveness.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” means two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A dual-mode adaptive high-efficiency tank, characterized in that, include: The inner cylinder, the outer cylinder sleeved around the outer periphery of the inner cylinder, the upper end cap disposed at the top of the outer cylinder and the inner cylinder, the lower end cap disposed at the bottom of the outer cylinder and the inner cylinder, and the liquid pipe disposed inside the inner cylinder, wherein one end of the liquid pipe is disposed inside the inner cylinder, and the other end of the liquid pipe passes through the upper end cap and is disposed outside. The system includes a first opening located below the inner cylinder, a refrigerant inlet and outlet located above the outer cylinder, a coil located between the inner and outer cylinders and spirally arranged around the inner cylinder, and a water inlet and outlet located on the outer cylinder, wherein the two ends of the coil are connected to the water inlet and the water outlet respectively. and a second opening located above the inner cylinder.

2. The high-efficiency tank according to claim 1, characterized in that: It also includes a third opening located above the liquid tube.

3. The high-efficiency tank according to claim 2, characterized in that: It also includes a first one-way valve disposed at the second opening, which only allows refrigerant to flow out from the inner cylinder.

4. The high-efficiency tank according to claim 3, characterized in that: It also includes a second check valve located at the third opening, which only allows refrigerant to flow from the liquid pipe into the inner cylinder.

5. The high-efficiency tank according to claim 4, characterized in that: The lower end opening of the liquid tube is configured with an inclined surface, and the inclined surface forms an acute angle of 45° with the axis of the liquid tube.

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