CN110806041A - Liquid separator and compressor - Google Patents
Liquid separator and compressor Download PDFInfo
- Publication number
- CN110806041A CN110806041A CN201911057541.7A CN201911057541A CN110806041A CN 110806041 A CN110806041 A CN 110806041A CN 201911057541 A CN201911057541 A CN 201911057541A CN 110806041 A CN110806041 A CN 110806041A
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- Prior art keywords
- compressor
- cylinder
- elastic tube
- liquid distributor
- cylinder body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
The invention relates to a liquid distributor and a compressor, wherein the liquid distributor comprises a cylinder body and an elastic pipe, an expansion cavity is formed in the elastic pipe, and the expansion cavity is communicated with an inner cavity of the cylinder body, so that when the pressure in the cylinder body changes, the elastic pipe elastically deforms along with the pressure in the cylinder body, and the volume of the expansion cavity is adjusted. The liquid separator automatically adjusts the gas specific volume of the compressor through the elastic pipe, keeps the flow of the refrigerant conveyed by the compressor stable, ensures the pressure ratio of the compressor to be constant, and further maintains the volume efficiency of the compressor to be stable.
Description
Technical Field
The invention belongs to the field of refrigeration, and particularly relates to a liquid separator and a compressor.
Background
The low-pressure cavity rotor compressor, the refrigerant directly discharges the compressor by the pipeline after the compressor pump body compression, get into the condenser in the refrigeration or heating system, nevertheless often have following 2 problems in the system is joined in marriage and is tried and the compressor operation in-process:
1. the situation that the energy efficiency of the compressor is reduced due to unstable suction and exhaust pressure: when the pressure difference in the liquid separator is larger, the pressure drop of the air suction side during the working period of the compressor is increased, so that the specific volume of the gas returning to the compressor is increased, the flow of the refrigerant conveyed by the compressor is reduced, and the refrigerating capacity and the efficiency are reduced; too large a separator size will bring a cost increase to the compressor.
2. The design of the liquid distributor bracket also leads to increasingly obvious vibration of the liquid distributor body and the whole machine thereof, leads to the increase of the integral vibration of the compressor and is not in accordance with the original intention of reducing the vibration in the design of the compressor.
Therefore, how to prevent the compressor from being affected by system pressure fluctuation in the operation process and reduce the vibration generated in the operation process becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a liquid separator and a compressor, which can ensure the constant pressure drop difference of the compressor.
In order to achieve the purpose, the specific technical scheme of the liquid distributor is as follows:
a liquid distributor comprises a cylinder body and an elastic tube, wherein an expansion cavity is formed in the elastic tube, and the expansion cavity is communicated with an inner cavity of the cylinder body, so that when the pressure in the cylinder body changes, the elastic tube elastically deforms along with the pressure in the cylinder body, and the volume of the expansion cavity is adjusted.
Furthermore, the total volume of the cylinder body and the elastic tube in the elastic tube is 1-1.3 times of the total volume of the cylinder body and the elastic tube before the elastic tube is elastically deformed.
Furthermore, the elastic tube is arranged outside the cylinder body, a through hole is formed in the joint of the cylinder body and the elastic tube, and the through hole enables the inner cavity of the cylinder body to be communicated and connected with the elastic tube.
Furthermore, the elastic tube is provided with an opening at one side attached to the cylinder body, and the edges at two sides of the opening are fixedly connected and sealed on the cylinder body.
Furthermore, the top of the cylinder body is provided with an air suction pipe, and the air suction pipe is provided with a control valve.
Furthermore, the control valve comprises a sealing cover and an adjusting rod, and a sealing hole is formed in the sealing cover; the adjusting rod is movably connected with the air suction pipe, and the tail end of the adjusting rod is sealed by moving the adjusting rod.
Furthermore, the adjusting rod is in threaded connection with the air inlet pipe.
The invention also provides a compressor, and the specific scheme is as follows:
a compressor comprises a compressor body and the liquid distributor.
Furthermore, the outer side of the elastic pipe is attached to the compressor body and fixedly connected with the compressor body.
The liquid separator and the compressor have the following advantages that:
1. the gas specific volume of the compressor is automatically adjusted through the elastic pipe, the flow of the refrigerant conveyed by the compressor is kept stable, the pressure ratio of the compressor is ensured to be constant, and the volume efficiency of the compressor is further kept stable.
2. The refrigerant flow of the compressor is controlled by adjusting the size of the control valve, so that the specific volume of the gas in the compressor is controlled, the pressure drop difference of the compressor is constant, and the capacity and the energy efficiency of the compressor are improved.
3. The elastic pipe is connected with the compressor shell and the liquid distributor together, and the elastic pipe is made of flexible materials, so that the vibration between the compressor liquid distributor and the support of the compressor liquid distributor is effectively reduced, and the integral vibration of the compressor is reduced.
Drawings
FIG. 1 is a schematic view of the compressor of the present invention;
fig. 2 is a schematic view of the control valve structure of the present invention.
The notation in the figure is:
1. a compressor body; 2. a barrel; 21. a through hole; 3. an elastic tube; 31. a collapsible cavity; 32. an opening; 4. a control valve; 41. sealing the cover; 411. an upper baffle plate; 412. a partition plate; 413. a lower baffle plate; 42. adjusting a rod; 5. an air intake duct; 6. and an air outlet pipe.
Detailed Description
For a better understanding of the objects, structure and function of the invention, a dispenser and compressor according to the invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1, the compressor of the present invention includes a compressor body 1 and a liquid separator which are communicated with each other. The air outlet pipe 6 of the liquid separator is arranged on the air suction port of the compressor body 1, so that the liquid separator and the compressor body 1 are communicated and fixed with each other.
In order to stabilize the pressure of the suction and exhaust gas, the liquid distributor includes a cylinder 2 and an elastic tube 3. An expansion cavity 31 is formed in the elastic tube 3, and the expansion cavity 31 is communicated with the inner cavity of the cylinder 2, so that when the pressure in the cylinder 2 changes, the elastic tube 3 elastically deforms along with the pressure in the cylinder 2, and the volume of the expansion cavity 31 is adjusted, so that the pressure drop difference of the compressor is constant.
The theory is as follows:
compressor refrigeration capacity:
ηvis the theoretical capacity of the compressor; q. q.svtIs the theoretical volume gas transmission of the compressor, and the unit is m3/h；qomThe unit refrigerating capacity of the refrigerant under the customized cold working condition is KJ/Kg; vsoIs the specific volume of refrigerant in the state of air suction, unit m3/Kg。
For the same compressor qvtIn order to be a constant value,
η due to the volumetric efficiency of the compressorv＝λv·λp·λT·λL·λh，
Leakage coefficient lambdaLIntake pressure loss λpCoefficient of return λhV, volume coefficient λvTemperature coefficient lambdaT。
Leakage coefficient lambda for the same compressorLFor a fixed value, without a suction valve for a rotary compressor, the suction pressure loss is negligible, so λpApproximately 1, during the rotation of the compressorSmall dynamic angle and small volume change, so lambdahApproximately 1,;
available for the same compressor: q ═ A. lambdaT·qom/VsoAnd A is a constant.
The invention also limits the optimal volume of the effective volume of the liquid distributor, and the theoretical analysis can obtain the following results:
Vcontainer＝V0+A1·V0
VContainerIs the effective volume of the liquid separator, V0The partial volume of the dispenser being fixed (when the elastic tube is not expanded), A1Is constant and (0. ltoreq. A)1≤0.3)。
It can be seen that when the pressure difference inside the liquid separator is large, the pressure drop on the suction side of the compressor increases and the specific gas volume V increasessoWill also increase with it; and the pressure ratio becomes large to cause a reduction in volumetric efficiency of the compressor. For the scheme, when the air suction side pressure is larger, the elastic pipe arranged at the upper part of the liquid distributor can expand in a self-adaptive manner, so that the effective volume in the liquid distributor is enlarged, the pressure ratio is kept constant, the gas specific volume is reduced, the refrigerating capacity of the compressor is enhanced, and the energy efficiency is improved.
In order to facilitate the gas circulation in the inner cavity of the cylinder body 2 and the expansion cavity 31, the elastic tube 3 is arranged outside the cylinder body 2, a through hole 21 is formed at the joint of the cylinder body 2 and the elastic tube 3, and the through hole 21 enables the inner cavity of the cylinder body 2 to be communicated with the elastic tube 3. The elastic tube 3 is provided with an opening 32 at one side attached to the cylinder 2, and edges of two sides of the opening 32 are bonded to the cylinder 2, so that the elastic tube 3 is fixed on the cylinder 2.
The outer side of the elastic tube 3 is attached to the compressor body 1 and is bonded with the compressor body 1. The elastic tube 3 thus acts as a flexible connection, assisting in fixing the compressor body 1 and the liquid distributor. Therefore, the elastic pipe 3 replaces a support to fix the liquid distributor, so that the vibration between the compressor liquid distributor and the support can be effectively reduced, and the integral vibration of the compressor is reduced.
In order to ensure a reasonable effective volume inside the dispenser, as shown in fig. 2, the suction pipe 5 at the top of the cylinder 2 is provided with a control valve 4. The flow of the refrigerant of the compressor is controlled by adjusting the size of the valve. The control valve 4 comprises a closure cap 41 and an adjustment stem 42. The cover 41 closes the air suction pipe 5, and the cover 41 includes an upper baffle 411, a partition 412, and a lower baffle 413. The upper baffle 411 is higher than the lower baffle 413. And both sides of the partition 412 are respectively connected with the upper baffle 411 and the lower baffle 413 into a whole. The partition 412 is provided with a sealing hole closed by the adjusting rod 42, and the adjusting rod 42 is connected to the air inlet pipe by screw threads. Therefore, when the pressure inside the liquid separator is relatively large, the suction amount of the refrigerant is reduced by adjusting the adjusting rod 42 outwards, the specific volume of the gas inside the compressor is further reduced, and the pressure drop difference of the compressor is ensured to be constant.
Thus, the liquid separator can automatically adjust the gas specific volume of the compressor through the elastic pipe 3 when the internal pressure difference is larger, keep the flow of the refrigerant conveyed by the compressor stable, ensure the pressure ratio of the compressor to be constant, and further maintain the volume efficiency of the compressor to be stable. The control valve 4 can control the refrigerant flow of the compressor by adjusting the size of the valve at the air inlet pipe orifice of the compressor, so as to control the internal gas specific volume of the compressor and ensure the constant pressure drop difference of the compressor.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A liquid distributor is characterized by comprising a cylinder body (2) and an elastic tube (3), wherein an expansion cavity (31) is formed in the elastic tube (3), and the expansion cavity (31) is communicated with the inner cavity of the cylinder body (2), so that when the pressure in the cylinder body (2) changes, the elastic tube (3) elastically deforms along with the pressure in the cylinder body (2), and the volume of the expansion cavity (31) is adjusted.
2. Liquid dispenser according to claim 1, characterized in that the total volume of the cylinder (2) and the flexible tube (3) is 1-1.3 times the total volume of the cylinder (2) and the flexible tube (3) before the flexible tube (3) is elastically deformed.
3. The liquid distributor according to claim 1, characterized in that the elastic tube (3) is arranged outside the cylinder (2), the cylinder (2) is provided with a through hole (21) at the joint with the elastic tube (3), and the through hole (21) connects the inner cavity of the cylinder (2) and the elastic tube (3) in a communicating manner.
4. The liquid distributor according to claim 3, characterized in that the elastic tube (3) is provided with an opening (32) at the side which is jointed with the cylinder (2), and the edges of the two sides of the opening (32) are fixedly sealed on the cylinder (2).
5. The liquid distributor according to claim 1, characterized in that the top of the cylinder (2) is provided with an air suction pipe (5), and the air suction pipe (5) is provided with a control valve (4).
6. The dispenser according to claim 5, wherein the control valve (4) comprises a cover (41) and an adjusting rod (42), the cover (41) being provided with a sealing hole; the adjusting rod (42) is movably connected with the air suction pipe (5), and the tail end of the adjusting rod (42) is closed to the sealing hole through movement.
7. Liquid distributor according to claim 5, characterized in that the adjusting rod (42) is screwed onto the inlet pipe.
8. Compressor, characterized in that it comprises a compressor body (1), and a liquid distributor according to any one of claims 1 to 7.
9. Compressor according to claim 8, characterized in that the outside of the elastic tube (3) is attached to the compressor body (1) and is fixed to the compressor body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057541.7A CN110806041A (en) | 2019-11-01 | 2019-11-01 | Liquid separator and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057541.7A CN110806041A (en) | 2019-11-01 | 2019-11-01 | Liquid separator and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110806041A true CN110806041A (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911057541.7A Pending CN110806041A (en) | 2019-11-01 | 2019-11-01 | Liquid separator and compressor |
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| Country | Link |
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| CN (1) | CN110806041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366925A (en) * | 2023-12-07 | 2024-01-09 | 珠海凌达压缩机有限公司 | Knockout, compressor and air conditioner |
-
2019
- 2019-11-01 CN CN201911057541.7A patent/CN110806041A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366925A (en) * | 2023-12-07 | 2024-01-09 | 珠海凌达压缩机有限公司 | Knockout, compressor and air conditioner |
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