阅读说明：本技术 储液器 (Liquid storage device ) 是由 黄波 赵凤荣 于 2020-03-19 设计创作，主要内容包括：本发明提供一种储液器,所述储液器包括筒体、进气管、孔板、分流管、导气管和出气管。所述筒体包括缓冲腔和内腔,当气液混合冷媒通过所述进气管进入所述筒体时,液态冷媒会经过缓冲腔和内腔流至筒体底部,而气态冷媒会经进气管的气孔分流后进入缓冲腔。气态冷媒的流速经缓冲后大幅下降,随之进入内腔中的分流管。所述分流管进一步分流所述气态冷媒,使所述气态冷媒的流动变得更加均匀,从而解决气流不均匀问题。最后,所述气态冷媒通过导气管传输至出气管,压缩机通过出气管将所述气态冷媒吸入。因此,加设分流管的储液器,不仅降低进气的冲击压,且在压缩机间歇式吸气的过程中,还可大大消减气流压力脉动,使得压缩机运行更加稳定,降低功耗。(The invention provides a liquid storage device which comprises a barrel body, an air inlet pipe, an orifice plate, a flow dividing pipe, an air guide pipe and an air outlet pipe. The barrel comprises a buffer cavity and an inner cavity, when gas-liquid mixed refrigerant enters the barrel through the air inlet pipe, liquid refrigerant can flow to the bottom of the barrel through the buffer cavity and the inner cavity, and gaseous refrigerant can flow into the buffer cavity after being shunted through air holes of the air inlet pipe. The flow velocity of the gaseous refrigerant is greatly reduced after being buffered, and then enters the shunt pipe in the inner cavity. The shunt pipe further shunts the gaseous refrigerant, so that the flow of the gaseous refrigerant becomes more uniform, and the problem of non-uniform airflow is solved. And finally, the gaseous refrigerant is transmitted to the air outlet pipe through the air guide pipe, and the compressor sucks the gaseous refrigerant through the air outlet pipe. Therefore, the liquid storage device with the flow dividing pipe is added, the impact pressure of air inflow is reduced, and in the intermittent air suction process of the compressor, the pressure pulsation of air flow can be greatly reduced, so that the compressor is more stable in operation, and the power consumption is reduced.)

1. A liquid storage device is characterized by comprising a barrel body, an air inlet pipe, an orifice plate, a flow dividing pipe, an air guide pipe and an air outlet pipe; wherein the content of the first and second substances,

the cylinder body comprises a buffer cavity and an inner cavity, and the buffer cavity is communicated with the inner cavity;

the air inlet pipe is arranged at the end part of the barrel and is communicated with the buffer cavity, a plurality of first air holes are uniformly formed in the pipe wall of the air inlet pipe close to one end of the buffer cavity, and the air inlet pipe is used for conveying a gas-liquid mixed refrigerant into the buffer cavity;

the pore plate is provided with at least two through holes and is laid in the inner cavity along the radial direction of the cylinder body;

the shunt tubes are arranged in the inner cavity, one shunt tube penetrates through each through hole, and the shunt tubes are used for shunting gaseous refrigerants in the gas-liquid mixed refrigerants;

the air guide pipe is arranged in the inner cavity, one end of the air guide pipe is communicated with the air outlet pipe, and the air guide pipe is used for conveying the gaseous refrigerant;

the gas outlet pipe is arranged on the side wall of the cylinder body and communicated with the inner cavity, and the gas outlet pipe is used for conveying the gaseous refrigerant out of the inner cavity.

2. The reservoir of claim 1, wherein the orifice plate divides the interior chamber into a first chamber and a second chamber, the first chamber being in communication with the buffer chamber, and the shunt tube having ends in communication with the first chamber and the second chamber, respectively.

3. The liquid storage device according to claim 1 or 2, further comprising a filter screen, wherein the filter screen is disposed in the first chamber, laid along a radial direction of the cylinder, and connected to an inner wall of the cylinder, and the filter screen is configured to filter impurities in the gas-liquid mixed refrigerant.

4. The reservoir of claim 3, wherein the filter screen is a metal mesh.

5. The reservoir of claim 2, wherein the airway tube is disposed within the second chamber, the airway tube comprising a first tube and a second tube in communication with the first tube; wherein the content of the first and second substances,

the first pipe fitting is an I-shaped pipe, and a plurality of second air holes are uniformly distributed on the pipe wall of the first pipe fitting;

the second pipe fitting is an L-shaped pipe, the L-shaped pipe is provided with a vertical part and a horizontal part connected with the vertical part, one end of the horizontal part is communicated with the air outlet pipe, and one end of the vertical part is communicated with the first pipe fitting.

6. The reservoir according to claim 5, characterized in that it further comprises an oil return pipe connected to the horizontal portion of said second pipe element and communicating with said second pipe element.

7. The reservoir according to claim 6, characterized in that the hole diameter of the oil return pipe is 1-5 mm.

8. The liquid storage device as claimed in claim 1, wherein the shunt tube comprises a tube body and a plurality of third air holes arranged on the tube body, the air holes are uniformly arranged along the tube body, and the distance between two axially adjacent air holes is 1/4-1/2 of the inner diameter of the shunt tube.

9. The reservoir of claim 8, wherein the diameter of the third air hole is 1/5-1/3 of the inner diameter of the shunt tube.

10. The reservoir of claim 1, wherein the total flow area of the shunt tubes is greater than or equal to the flow area of the inlet tube.

11. The reservoir of claim 1, wherein the inner diameter of the barrel is 2 to 6 times the inner diameter of the air intake tube.

Technical Field

The invention relates to the technical field of compressor components, in particular to a liquid storage device.

Background

The liquid accumulator is an important part of the compressor and has a wide application range. The basic principle of the liquid accumulator is that low-temperature and low-pressure gas-liquid mixed refrigerant is sucked from a heat exchanger (such as an evaporator) through the air inlet pipe, enters the liquid accumulator to realize gas-liquid separation, is filtered by the filter screen to discharge foreign matters, and is sucked by the compressor through the air outlet pipe and used for compression operation. The separated liquid refrigerant is vaporized by ambient heat and rises, and is sucked by the compressor for compression. Therefore, the reservoir mainly functions as follows: firstly, carry out gas-liquid separation to the refrigerant, prevent that the compressor from moving under unstable state, liquid refrigerant flows into the compressor and leads to the liquid to hit, damages the compressor pump body. Secondly, the refrigerant is filtered, so that impurities are prevented from entering the compressor and damaging a pump body of the compressor. However, the compressor sucks the gaseous refrigerant in the accumulator in an intermittent air suction manner, and the existing accumulator usually generates large air flow pressure pulsation in the air suction manner, which often seriously affects the compression operation and increases the energy consumption of the compressor.

Therefore, a new liquid accumulator is needed, which can ensure the uniformity of the air flow and reduce the pressure pulsation of the air flow without affecting the normal suction of the compressor.

Disclosure of Invention

The invention aims to provide a liquid accumulator to solve the problem that the pressure pulsation of air flow of the liquid accumulator is overlarge in the working process of a compressor.

In order to solve the technical problem, the invention provides a liquid storage device which is characterized by comprising a barrel body, an air inlet pipe, an orifice plate, a flow dividing pipe, an air guide pipe and an air outlet pipe; wherein the content of the first and second substances,

the cylinder body comprises a buffer cavity and an inner cavity, and the buffer cavity is communicated with the inner cavity;

the air inlet pipe is arranged at the end part of the barrel and is communicated with the buffer cavity, a plurality of first air holes are uniformly formed in the pipe wall of the air inlet pipe close to one end of the buffer cavity, and the air inlet pipe is used for conveying a gas-liquid mixed refrigerant into the buffer cavity;

the pore plate is provided with at least two through holes and is laid in the inner cavity along the radial direction of the cylinder body;

the shunt tubes are arranged in the inner cavity, one shunt tube penetrates through each through hole, and the shunt tubes are used for shunting the gaseous refrigerant;

the gas guide pipe is arranged in the inner cavity, one end of the gas guide pipe is communicated with the gas outlet pipe, and the gas guide pipe is used for conveying gaseous refrigerants in the gas-liquid mixed refrigerants;

the gas outlet pipe is arranged on the side wall of the cylinder body and communicated with the inner cavity, and the gas outlet pipe is used for conveying the gaseous refrigerant out of the inner cavity.

Optionally, in the reservoir, the orifice plate divides the inner cavity into a first chamber and a second chamber, the first chamber is communicated with the buffer cavity, and two ends of the shunt tube are respectively communicated with the first cavity and the second cavity.

Optionally, in the liquid storage device, the liquid storage device further includes a filter screen, the filter screen is disposed in the first chamber, laid along a radial direction of the cylinder, and connected to an inner wall of the cylinder, and the filter screen is used for filtering impurities in the gas-liquid mixed refrigerant.

Optionally, in the liquid reservoir, the filter screen is a metal mesh.

Optionally, in the liquid reservoir, the air duct is disposed in the second chamber, and the air duct includes a first pipe and a second pipe communicated with the first pipe; wherein the content of the first and second substances,

the first pipe fitting is an I-shaped pipe, and a plurality of second air holes are uniformly distributed on the pipe wall of the first pipe fitting;

the second pipe fitting is an L-shaped pipe, the L-shaped pipe is provided with a vertical part and a horizontal part connected with the vertical part, one end of the horizontal part is communicated with the air outlet pipe, and one end of the vertical part is communicated with the first pipe fitting.

Optionally, in the liquid storage device, the liquid storage device further includes an oil return pipe, and the oil return pipe is connected to the horizontal portion of the second pipe fitting and is communicated with the second pipe fitting.

Optionally, in the reservoir, a tube hole of the oil return tube has a diameter of 1-5 mm.

Optionally, in the reservoir, the shunt tubes include the body and set up in a plurality of third gas pockets on the body, the gas pocket is followed the body is evenly arranged, two axially adjacent distance between the gas pocket is 1/4 ~ 1/2 of shunt tubes internal diameter.

Optionally, in the reservoir, the diameter of the third air hole is 1/5-1/3 of the inner diameter of the shunt pipe.

Optionally, in the reservoir, the total flow area of the shunt tubes is greater than or equal to the flow area of the air inlet tube.

Optionally, in the liquid reservoir, the inner diameter of the cylinder is 2 to 6 times of the inner diameter of the air inlet pipe.

In summary, the present invention provides a liquid storage device, which comprises a cylinder, an air inlet pipe, an orifice plate, a shunt pipe, an air duct and an air outlet pipe. The barrel comprises a buffer cavity and an inner cavity, when gas-liquid mixed refrigerant enters the barrel through the air inlet pipe, liquid refrigerant can flow to the bottom of the barrel through the buffer cavity and the inner cavity, and gaseous refrigerant enters the buffer cavity after being divided by the air holes of the air inlet pipe. The flow velocity of the gaseous refrigerant is greatly reduced by buffering and then enters the shunt pipe in the inner cavity. The shunt tubes are used for further shunting the gaseous refrigerant, so that the flow of the gaseous refrigerant becomes more uniform, and the problem of non-uniform airflow is solved. And finally, the gaseous refrigerant is transmitted to the air outlet pipe through the air guide pipe, and the compressor sucks the gaseous refrigerant through the air outlet pipe. Therefore, the liquid storage device with the flow dividing pipe is additionally arranged, the impact pressure of air inflow is reduced, and the pressure pulsation of air flow can be greatly reduced in the intermittent air suction process of the compressor, so that the compressor is more stable in operation, and the power consumption is reduced.

Drawings

FIG. 1 is a schematic diagram of a reservoir configuration according to an embodiment of the present invention;

FIG. 2 is a schematic view of a shunt tube configuration according to an embodiment of the present invention;

fig. 3 is a top view of a shunt according to an embodiment of the present invention;

FIG. 4 is a top view of an orifice plate according to an embodiment of the present invention;

fig. 5 is a schematic view of an intake duct according to an embodiment of the present invention.

Wherein the reference numerals are as follows:

00-a reservoir;

10-a cylinder body; 100-lumen; 101-a buffer chamber; 1001-first chamber; 1002-a second chamber;

11-an air inlet pipe; 111-a first air vent; 12-an air outlet pipe;

13-a gas-guide tube; 131-a first tube; 132-a second tubular; 133-a second air hole;

14-well plate; 141-a through hole;

15-shunt tubes; 151-third air holes;

16-a filter screen; 17-an oil return pipe;

L₁-the distance between two adjacent air holes;

d₁-a shunt tube inner diameter; d₂-pore diameter; d₃-a through hole diameter; d₄-a barrel inside diameter; d₅-a shunt tube outer diameter; d₆-inner diameter of the intake pipe.

Detailed Description

As mentioned above, the compressor sucks the gaseous refrigerant in the accumulator in an intermittent air suction manner, and the existing accumulator usually generates large air flow pressure pulsation in this air suction manner, which often seriously affects the compression operation and increases the energy consumption of the compressor.

Therefore, the invention provides the liquid storage device, which can ensure the uniformity of air flow, reduce the pressure pulsation of the air flow and ensure the stable operation of the compressor under the condition of not influencing the working efficiency of the compressor.

The reservoir according to the invention will be described in more detail below with reference to the accompanying drawings and specific examples. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

Referring to fig. 1, the present invention provides a liquid reservoir 00, which includes a cylinder 10, an air inlet pipe 11, an air outlet pipe 12, an air duct 13, an orifice plate 14 and a shunt pipe 15. The cylinder 10 has a buffer chamber 101 and an inner chamber 100, and the buffer chamber 101 is communicated with the inner chamber 100. The air inlet pipe 11 is arranged at the end part of the cylinder 10 and communicated with the buffer cavity 101. The gas inlet pipe 11 is provided with a plurality of first air holes 111 on the pipe wall near one end of the buffer cavity 101, the first air holes 111 are used for reducing suction pulsation, and the gas inlet pipe 11 is used for conveying gas-liquid mixed refrigerant to the buffer cavity 101. The buffer cavity 101 is used for buffering a gas-liquid mixed refrigerant entering from the gas inlet pipe 12, and reducing the impact pressure of the gas-liquid mixed refrigerant, so that the flow velocity of an air flow is reduced, and a buffer effect is achieved for subsequent gas distribution. Further, the volume of the buffer chamber 101 is greater than or equal to 20 times the volume of the compression chamber of the compressor.

The orifice plate 14 has at least two through holes 141, and the orifice plate 14 is laid in the inner cavity 100 along the radial inner section of the cylinder 10 and divides the inner cavity 100 into a first cavity 1001 and a second cavity 1002. The shunt tube 15 is disposed in the inner cavity 100, and is disposed through the through hole 141 to communicate the first chamber 1001 and the second chamber 1002. The shunt tube 15 is inserted into each through hole 141, and the shunt tube 15 is used for shunting the gaseous refrigerant. The gaseous refrigerant enters the inner cavity 100 through the buffer cavity 101, and is divided by the dividing pipe 15, so that the gaseous refrigerant uniformly flows into the second chamber 1002 from the first chamber 1001.

The air duct 13 is disposed in the second chamber 1002, one end of the air duct 13 is communicated with the air outlet tube 12, and the air duct 13 is used for conveying the gaseous refrigerant in the second chamber 1002 to the air outlet tube 12. The gas-guide tube 13 has a first tube 131 and a second tube 132, wherein the first tube 131 is an I-shaped tube, and a plurality of second gas holes 133 are uniformly distributed on the tube wall of the first tube 131, so as to facilitate gas diversion. The second pipe member 132 is an L-shaped pipe having a vertical portion and a horizontal portion connected to the vertical portion, one end of the horizontal portion is communicated with the outlet pipe 12, and one end of the vertical portion is communicated with the first pipe member 131. The gas outlet pipe 12 is disposed on the side wall of the cylinder 10, and the gas outlet pipe 12 is used for conveying the gaseous refrigerant out of the inner cavity 100 so that the compressor can suck the gaseous refrigerant.

The reservoir 00 further includes a filter screen 16 and an oil return pipe 17. The filter screen 16 being along the cartridge

Body

10 are radially disposed within the first cavity 1001. The material of the filter screen 16 includes but is not limited to stainless steel or glass fiber. The filter screen 16 is used for filtering foreign matters in the gas-liquid mixed refrigerant, and preventing impurities from entering the compressor and damaging a pump body of the compressor. The oil return pipe 17 is connected to a horizontal portion of the second pipe member 132 and communicates with the second pipe member. The oil return pipe 17 facilitates the return of the lubricating oil in the reservoir 00. Because of the long-term operation of the compressor, a certain amount of lubricating oil is discharged along with the vaporized refrigerant and enters the cylinder 10 of the reservoir 00 through the air outlet pipe 12 and the air guide pipe 13, and the lubricating oil is deposited at the bottom of the cylinder 10 after long-term operation. The oil suction hole 17 can force the lubricating engine oil deposited at the bottom of the cylinder 10 through the suction force of the compressor, and the lubricating engine oil flows back into the air outlet pipe 12 of the liquid storage device and reenters the compressor, so that the lubricating protection effect is achieved on the compressor. Further, the diameter of the oil return pipe 17 is 1-5 mm.

Referring to fig. 2, the shunt tube 15 has a plurality of third air holes 151 and is uniformly arranged along the wall of the shunt tube 15. In order to meet the requirement of the compressor on the air supply flow during the intermittent air suction operation, the air distribution is realized under the condition that the normal air suction operation is not influenced, and further, the distance between every two axially adjacent third air holes 151 is L₁In the range of the internal diameter d of the shunt tube 15₁1/4-1/2, namely L₁∈[1/4d₁,1/2d₁]. Further, the diameter of the third air hole 151 is d₂In the range of the internal diameter d of the shunt tube 15₁1/5-1/3, i.e. d₂∈[1/5d₁,1/3d₁]。

Referring to fig. 3 and 4, the orifice plate 14 has at least two through holes 141, and the orifice plate 14 is laid in the inner cavity 100 along the radial inner section of the cylinder 10. In order to ensure that the shunt tube 15 is inserted into the orifice plate 14 and fixed on the orifice plate 14, the diameter of the through hole 141 of the orifice plate 14d₃Is equal to the outer diameter d of the shunt pipe₅I.e. d₃＝d₅。

Referring to fig. 4 and 5, in order to ensure stable air flow during intermittent air suction of the compressor, further, the total flow area of the branch pipes 15 is greater than or equal to the flow area of the air inlet pipe 11. Further, the inner diameter d of the cylinder 10₄Is the inner diameter d of the air inlet pipe 11₆2 to 6 times of that, i.e. d₄∈[2d₆,6d₆]。

In summary, in the liquid reservoir 00 of the present embodiment, the plurality of first air holes 111 are uniformly disposed on the tube wall of the air inlet tube 11 of the liquid reservoir 00 near the end of the buffer cavity 101, and the first air holes 111 can reduce suction pulsation and split gaseous refrigerant. In addition, a shunt tube 15 is additionally arranged in the inner cavity 100 of the liquid reservoir 00, a plurality of third air holes 151 are uniformly formed in the tube wall of the shunt tube 15, the third air holes 151 and the inner diameter of the shunt tube 15 are accurately calculated, the requirement of the air supply flow of the intermittent air suction operation of the compressor is met, the gaseous refrigerant is shunted under the condition that the normal operation of the compressor is not influenced, and the second air hole 133 is further formed in the air guide tube 13 connected with the air outlet tube 12, so that the gaseous refrigerant can be further shunted. Therefore, through the porous arrangement, the gaseous refrigerant is subjected to multi-layer flow division, the problem that the compressor is unstable in operation due to overlarge air pressure pulsation is solved, the liquid accumulator 00 can realize gas-liquid separation of the sucked refrigerant, can also ensure that the flow of the gaseous refrigerant is uniform, the problem of overlarge air pressure pulsation caused in the operation process of the compressor is reduced, and the efficient and energy-saving operation of the compressor is facilitated.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.