Improved gas-liquid separator structure capable of eliminating sudden boiling

Abstract

The utility model discloses an improved gas-liquid separator structure capable of eliminating sudden boiling, and belongs to the technical field of gas-liquid separators. The improved gas-liquid separator structure comprises a cylinder body of a gas-liquid separator, a gas-liquid separation pipeline and a molecular sieve, the molecular sieve is bundled on the upper portion of the gas-liquid separation pipeline and located below the gaseous refrigerant inlet, and a gap is reserved between the highest position of the molecular sieve and the inner wall of the barrel. And non-woven fabrics are wrapped outside the molecular sieves. Most of the molecular sieves are located in a gaseous state, and bubbles can be more effectively prevented from being generated under the condition that the using amount of drying agents in the gas-liquid separator is equal to that of drying agents in a traditional gas-liquid separator. And a gap meeting a set range is reserved between the molecular sieve and the inner wall of the barrel, so that the refrigerant can circulate up and down and the sudden boiling reducing effect which is the same as that of the force unloading cover is achieved. The problems of sudden boiling and abnormal sound of the gas-liquid separator can be solved by slightly changing the structure of the existing gas-liquid separator, and the gas-liquid separator is suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas-liquid separators, in particular to an improved structure of a gas-liquid separator capable of eliminating sudden boiling. Background Art

[0002] Currently in the field of new energy heat pumps, gas-liquid separators can effectively extend the life of compressors. Existing gas-liquid separator patents include Figure 1 As shown, the molecular sieve is bundled along the gas-liquid separation line. When the compressor shuts down, the system liquid returns to the compressor, leaving most of the molecular sieve trapped within the liquid. When the liquid covers the molecular sieve, a large number of bubbles adhere to the pores of the molecular sieve. When the compressor restarts, the refrigerant in the gas-liquid separation lumen rapidly vaporizes as the pressure drops. Once the lumen is cleared, the negative pressure quickly transfers to the cylinder, where the bubbles adhering to the pores of the molecular sieve and a large amount of refrigerant participate in the evaporation, causing a sudden boil. When a large amount of refrigerant and oil suddenly evaporates under the shock of the bubbles, the bubbles expand and impact the outlet, producing a low, explosive sound known as a "squeak." This "squeak" can cause discomfort to the customer. A sudden boil can cause a brief "liquid shock" in the compressor, shortening its lifespan.

[0003] The existing application number is 202321622712.8, and the name is "Device for eliminating sudden boiling and abnormal noise in gas-liquid separator". The device diagram is as follows: Figure 2 While this utility model patent solves the problem of sudden boiling, the inclusion of a cut-bubble filter significantly increases flow resistance. Measurements show that the use of the cut-bubble filter increases resistance by 0.5 to 0.8 km / h at a flow rate of 150 kg / h. Furthermore, this patent includes a pressure relief cover to reduce sudden boiling, but this also inhibits gas evaporation during normal operation, hindering refrigerant flow.

[0004] Therefore, a new technical solution is urgently needed in the existing technology to solve this problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an improved structure of a gas-liquid separator that can eliminate sudden boiling, so as to solve the technical problems that the existing patents cannot eliminate sudden boiling or the device for eliminating sudden boiling and abnormal noise in the gas-liquid separator causes excessive flow resistance due to the bubble-cutting filter and unloading cover arranged inside.

[0006] An improved gas-liquid separator structure capable of eliminating sudden boiling comprises a gas-liquid separator cylinder, a gas-liquid separation pipeline and a molecular sieve. The molecular sieve is bundled on the upper part of the gas-liquid separation pipeline and located below the gaseous refrigerant inlet. A gap is left between the highest point of the molecular sieve and the inner wall of the cylinder.

[0007] The molecular sieve on one side of the gas-liquid separation pipeline has a longitudinal section that is high in the middle and low on both sides.

[0008] The lower portion of the molecular sieve is located at the upper third of the cylinder.

[0009] The cross-sectional area at the highest point of the molecular sieve accounts for five-sixths of the cross-sectional area of ​​the cylinder to reduce flow resistance.

[0010] The outside of the molecular sieve is wrapped with non-woven fabric.

[0011] Through the above design scheme, the utility model can bring the following beneficial effects:

[0012] The utility model sets the molecular sieve at the upper part of the gas-liquid separation pipeline, so that most of the molecular sieve is located in the gas state. It can more effectively prevent the generation of bubbles when the same amount of desiccant is used as in the traditional gas-liquid separator. The molecular sieve is arranged in a drum shape with a high middle and low sides, and a gap that meets the set range is left with the inner wall of the cylinder, so that the refrigerant can circulate up and down while playing the same role as the unloading cover in reducing sudden boiling. The molecular sieve is fixed by a cable tie, and the pipeline is provided with a card slot to ensure that the cable tie will not slide down, thereby ensuring that the fixed position of the molecular sieve remains unchanged. The molecular sieve is wrapped with a non-imitation cloth, which has a filtering and bubble-cutting function and can effectively avoid sudden boiling.

[0013] The utility model requires little change to the existing gas-liquid separator structure. The problems of sudden boiling and abnormal noise in the gas-liquid separator can be solved by simply changing the structural form and fixed position of the molecular sieve, or removing the bubble-cutting filter and the force-unloading cover of the existing patented "Device for Eliminating Sudden Boiling and Abnormal Noise in a Gas-Liquid Separator".

[0014] The utility model is suitable for low-cost modification of existing gas-liquid separators and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 It is a structural diagram of an existing gas-liquid separator patent;

[0017] Figure 2 This is a schematic diagram of the structure of the existing patent "Device for eliminating sudden boiling and abnormal noise in gas-liquid separator";

[0018] Figure 3 The utility model is a structural schematic diagram of an improved structure of a gas-liquid separator capable of eliminating sudden boiling.

[0019] In the figure, 1-gas-liquid separator cylinder, 2-gas-liquid separation pipeline, 3-molecular sieve, 4-cable tie, 201-gaseous refrigerant inlet, 202-card slot, a-cut bubble filter, b-unloading cover. DETAILED DESCRIPTION

[0020] like Figure 3 As shown, an improved structure of a gas-liquid separator capable of eliminating sudden boiling comprises a gas-liquid separator cylinder 1, a gas-liquid separation pipeline 2 and a molecular sieve 3. The molecular sieve 3 is bundled to the upper part of the gas-liquid separation pipeline 2 and is located below the gaseous refrigerant inlet 201. The lower part of the molecular sieve 3 is located in the upper third of the cylinder. The molecular sieve 3 is bundled and fixed by a card slot 202 and a cable tie 4 provided on the gas-liquid separation pipeline 2.

[0021] The molecular sieve 3 on one side of the gas-liquid separation line 2 has a longitudinal cross-section that is curved, with a high center and low sides. A gap is left between the highest point of the molecular sieve 3 and the inner wall of the cylinder 1. Specifically, the cross-sectional area at the highest point of the molecular sieve 3 accounts for five-sixths of the cylinder's cross-sectional area. This reduces flow resistance and ensures that the refrigerant's flow resistance does not exceed 15 kPa. This high area ratio at the highest point of the molecular sieve 3 reduces the instantaneous rapid transfer of gas while maintaining low flow resistance, thereby reducing rapid evaporation of gas and alleviating sudden boiling.

[0022] When the molecular sieve 3 is in the liquid refrigerant, it is like putting it in cola, and a large number of bubbles will adhere to the surface of the molecular sieve 3. When the compressor starts, a large number of bubbles will rise, which can easily cause sudden boiling. The liquid refrigerant in the gas-liquid separator is generally about half of the cylinder. The molecular sieve 3 of the present utility model is fixed to the upper part of the cylinder, with its lowest end about one-third of the cylinder. Therefore, the molecular sieve 3 can be completely or mostly contained in the gaseous refrigerant, which can effectively reduce the generation of bubbles and thus reduce the occurrence of sudden boiling.

[0023] Therefore, after the structure and position of the molecular sieve 3 are changed, the unloading cover b in the existing patent can be optimized and removed.

[0024] The molecular sieve 3 is wrapped with a non-woven fabric. The non-woven fabric is a transparent filter cloth, which has basically the same function as the bubble filter a, but is denser. The bubbles passing through the molecular sieve 3 can be directly chopped. Therefore, the bubble filter a in the existing patent is optimized and removed.

Claims

1. An improved structure of a gas-liquid separator capable of eliminating sudden boiling, comprising a gas-liquid separator cylinder (1), a gas-liquid separation pipeline (2) and a molecular sieve (3), characterized in that: The molecular sieve (3) is bundled on the upper part of the gas-liquid separation pipeline (2) and is located below the gaseous refrigerant inlet (201), and a gap is left between the highest point of the molecular sieve (3) and the inner wall of the cylinder (1).

2. The improved structure of a gas-liquid separator capable of eliminating sudden boiling according to claim 1, characterized in that: The molecular sieve (3) on one side of the gas-liquid separation pipeline (2) has a longitudinal section that is an arc surface with a high middle and low sides.

3. The improved structure of a gas-liquid separator capable of eliminating sudden boiling according to claim 1, characterized in that: The lower portion of the molecular sieve (3) is located at the upper third of the cylinder, and the molecular sieve (3) is tied and fixed by means of a clamping groove (202) and a tie (4) provided on the gas-liquid separation pipeline (2).

4. The improved structure of a gas-liquid separator capable of eliminating sudden boiling according to claim 1 is characterized in that: The cross-sectional area at the highest point of the molecular sieve (3) accounts for five-sixths of the cross-sectional area of ​​the cylinder (1) to reduce flow resistance.

5. The improved structure of a gas-liquid separator capable of eliminating sudden boiling according to claim 1, characterized in that: The outside of the molecular sieve (3) is wrapped with non-woven fabric.

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