CN220417745U - Liquid supplementing type liquid separator and compressor with same - Google Patents

Abstract

The utility model provides a liquid replenishing type liquid dispenser and a compressor with the liquid replenishing type liquid dispenser, the liquid replenishing type liquid dispenser comprises: the cylinder body is internally provided with a closed gas-liquid separation cavity; the liquid supplementing pipe is communicated with the gas-liquid separation cavity and is used for supplementing liquid refrigerant to the gas-liquid separation cavity; the liquid level control structure is positioned in the gas-liquid separation cavity and connected with the liquid supplementing pipe, and is used for controlling the opening and closing of the liquid supplementing pipe, so that part of liquid refrigerant is always arranged at the bottom of the gas-liquid separation cavity. According to the liquid supplementing type liquid dispenser, through the arrangement of the liquid supplementing pipe and the liquid level control structure, partial liquid refrigerant is ensured to be always in the liquid dispenser, and the specific volume and the temperature of the refrigerant entering the pump body of the compressor are reduced, so that the actual circulating refrigerant quantity of the compressor can be increased, the running environment in the compressor is improved, and the capacity, the energy efficiency and the reliability of the compressor are improved.

Description

Liquid supplementing type liquid separator and compressor with same

Technical Field

The utility model relates to the technical field of compressors, in particular to a liquid supplementing type liquid separator and a compressor with the liquid supplementing type liquid separator.

Background

Generally, an air conditioning system needs to control the superheat degree of a refrigerant flowing out of an evaporator to be maintained at an appropriate value to ensure that a gaseous refrigerant in a vapor state always flows into a compressor, however, it is difficult to precisely control the superheat degree of the evaporator in the current air conditioning system.

When the electronic expansion valve or the thermal expansion valve is adopted to control the superheat degree of the evaporator in the air conditioning system, the superheat degree is controlled to be 0 as much as possible in order to improve the energy efficiency of the system ⁺ That is, the superheat degree approaches 0 from the forward direction, in this case, suction liquid is extremely easy to be carried by the compressor, so that liquid impact of the compressor is caused, and the performance and reliability of the compressor are affected; if the superheat degree of the evaporator is controlled to be higher, after the refrigerant exits the evaporator, the refrigerant can be further superheated between pipe sections from the evaporator to the inlet of the compressor, so that the specific volume of the refrigerant at the inlet of the pump body of the compressor is further increased, and the quantity of the refrigerant actually circulated by the compressor is further reduced, thereby influencing the capacity and the energy efficiency of the compressor.

When the air conditioning system adopts the capillary tube to control the superheat degree of the evaporator, the superheat degree of the outlet of the evaporator is extremely easy to be higher due to the limited adjustable range of the capillary tube, so that the suction specific volume of the compressor is higher, and the capacity and the energy efficiency of the compressor are affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a liquid supplementing type liquid separator and a compressor with the liquid supplementing type liquid separator, and the liquid supplementing type liquid separator can prevent the air suction of the compressor from being overheated when the superheat degree of an evaporator is higher.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a liquid replenishing dispenser comprising:

the cylinder body is internally provided with a closed gas-liquid separation cavity;

the liquid supplementing pipe is communicated with the gas-liquid separation cavity and is used for supplementing liquid refrigerant to the gas-liquid separation cavity;

the liquid level control structure is positioned in the gas-liquid separation cavity and connected with the liquid supplementing pipe, and is used for controlling the opening and closing of the liquid supplementing pipe, so that part of liquid refrigerant is always arranged at the bottom of the gas-liquid separation cavity.

According to the liquid supplementing type liquid dispenser, the liquid supplementing pipe and the liquid level control structure are arranged, when the liquid level of the liquid refrigerant in the liquid dispenser is lower than a set value, the liquid level control structure opens the liquid supplementing pipe to supplement the liquid refrigerant to the liquid dispenser, when the liquid level of the liquid refrigerant in the liquid dispenser reaches the set value, the liquid level control structure closes the liquid supplementing pipe to stop supplementing the liquid refrigerant to the liquid dispenser, and therefore the liquid refrigerant is guaranteed to be in part of the liquid refrigerant all the time in the liquid dispenser. Therefore, after the gaseous refrigerant from the evaporator enters the liquid separator, the gaseous refrigerant is mixed with the refrigerant in the liquid separator, and the specific volume and the temperature of the refrigerant entering the pump body of the compressor are reduced, so that the actual circulating refrigerant quantity of the compressor is increased, and the capacity of the compressor is further increased. Meanwhile, the temperature of the refrigerant entering the pump body of the compressor is reduced, the compression power consumption of the compressor can be reduced, the temperature of a flow field inside the compressor can be reduced, the running environment inside the compressor is improved, and therefore the capacity, energy efficiency and reliability of the compressor are improved.

In some embodiments, the liquid level control structure comprises a spacing cavity and a float disposed within the spacing cavity;

the limiting cavity is arranged at the bottom of the gas-liquid separation cavity and is communicated with the gas-liquid separation cavity, and an outlet of the liquid supplementing pipe positioned in the gas-liquid separation cavity extends into the limiting cavity;

the floating body is arranged to seal the outlet of the liquid supplementing pipe when the liquid level in the gas-liquid separation cavity reaches a set value.

The liquid level control structure of this application realizes liquid level control through the body, when the liquid level is less than the setting value, the body descends, and the fluid infusion pipe opens, carries out the fluid infusion for the knockout, and when the liquid level reached the setting value, the body risees, and the fluid infusion pipe closes, stops to supplement liquid for the knockout, compares electronic switch, has simple structure, convenient to use, safe and reliable's characteristics.

In some embodiments, the limiting cavity comprises a plurality of guide plates vertically arranged at the bottom of the gas-liquid separation cavity;

the guide plate is provided with a through hole, so that the limiting cavity is communicated with the gas-liquid separation cavity;

the outlet of the liquid supplementing pipe is downwards arranged and extends into the limiting cavity from the top of the limiting cavity;

the largest cross-sectional area of the floating body is larger than the cross-sectional area of the outlet of the liquid supplementing pipe, so that the outlet of the liquid supplementing pipe can be sealed when the floating body floats;

the limiting cavity is arranged in a way that when the floating body seals the outlet of the fluid infusion tube, the guide plate is tangent to the outer surface of the floating body.

The utility model provides a liquid level control structure sets up the diameter of the export of body and is greater than the diameter of fluid replacement pipe, make the body can seal the export of fluid replacement pipe, spacing chamber sets up to when the body seals the export of fluid replacement pipe, the deflector is tangent with the surface of body, like this, the body is located spacing intracavity, can lead the body through spacing chamber, make the body only can reciprocate, thereby when the liquid level rises in the knockout, the body rises along with the liquid level, when the liquid level rises to the setting value, the body seals the export of fluid replacement pipe, and when the liquid level descends in the knockout, the body descends along with the liquid level, when the liquid level descends to a definite value, the body leaves the export of fluid replacement pipe, the fluid replacement pipe switches on, fluid replacement in the knockout.

In some embodiments, the gas-liquid separation device further comprises a gas inlet pipe and a gas outlet pipe which are communicated with the gas-liquid separation cavity;

the air inlet pipe is arranged at the top of the cylinder body, and the exhaust pipe is inserted into the upper part of the gas-liquid separation cavity from the bottom of the cylinder body.

The liquid replenishing type liquid separator is characterized in that the air inlet pipe is arranged at the top of the cylinder, the exhaust pipe is inserted into the upper part of the gas-liquid separation cavity from the bottom of the cylinder, so that when the gaseous refrigerant from the evaporator enters the liquid separator through the air inlet pipe, the gaseous refrigerant is mixed with the refrigerant in the liquid separator to play a role in cooling, the mixed refrigerant enters the exhaust pipe, and when passing through the bottom of the liquid separator, the mixed refrigerant exchanges heat with the liquid refrigerant, the temperature of the refrigerant is further reduced, so that the refrigerant entering the pump body of the compressor is further optimized, and the capacity, the energy efficiency and the reliability of the compressor are further improved.

In some embodiments, the gas-liquid separation chamber further comprises a first screen assembly and a second screen assembly disposed in spaced relation in the gas-liquid separation chamber;

the air inlet pipe is positioned above the first filter screen component, and the liquid supplementing pipe is positioned below the second filter screen component;

the exhaust pipe passes through the second filter screen assembly, so that an inlet of the exhaust pipe in the gas-liquid separation cavity is positioned between the first filter screen assembly and the second filter screen assembly.

The liquid filling type liquid separator of this application, the import of blast pipe is located between first filter screen subassembly and the second filter screen subassembly, and first filter screen subassembly can filter and vapour and liquid separation to the refrigerant that comes from the evaporimeter, and the second filter screen subassembly can filter and vapour and liquid separation to the refrigerant that gets into from the liquid filling pipe of separator to prevent that the impurity that the refrigerant carried from entering into the blast pipe, then enter into the compressor pump body, lead to the pump body wearing and tearing, arouse the compressor trouble.

In some embodiments, the first screen assembly includes a first screen support, a first screen, and a first compression ring;

the first filter screen support is connected to the inner wall of the cylinder body, and the first press ring fixes the first screen on the top surface of the first filter screen support.

The first filter screen subassembly of this application, first screen cloth are located first filter screen support top surface, utilize the silk screen separation principle to filter and vapour and liquid separation to the refrigerant that comes from the evaporimeter, prevent that the impurity that the refrigerant of evaporimeter carried from entering into the blast pipe.

In some embodiments, the first screen support is provided with a plurality of first swirl holes and a plurality of first through-flow holes at intervals along the circumferential direction.

The first filter screen subassembly of this application, first through-hole are used for the circulation of gaseous refrigerant, and first spiral opening has the water conservancy diversion effect, utilizes the principle of baffling separation to carry out further filtration separation to the refrigerant through first screen cloth.

In some embodiments, the second screen assembly includes a second screen support, a second screen, and a second compression ring;

the second filter screen bracket is connected to the inner wall of the cylinder body, and the second press ring is used for fixing the second screen on the bottom surface of the second filter screen bracket;

and through holes for the exhaust pipe to pass through are formed in the centers of the second filter screen bracket and the second filter screen.

The second filter screen subassembly of this application, second screen cloth are located second filter screen support bottom surface, utilize silk screen separation principle to filter and vapour and liquid separation to the refrigerant that comes the fluid infusion pipe, prevent that the impurity that the refrigerant of fluid infusion pipe carried from entering into the blast pipe.

In some embodiments, the second screen support is provided with a plurality of second swirl holes and a plurality of second ventilation holes at intervals along the circumferential direction.

The second filter screen subassembly of this application, second ventilation hole are used for the circulation of gaseous refrigerant, and the second spiral opening has the water conservancy diversion effect, utilizes the principle of baffling separation to carry out further filtration separation to the refrigerant through the second screen cloth.

According to another aspect of the utility model, there is provided a compressor comprising the above-described dispenser, the suction end of the compressor being in communication with the discharge pipe of the dispenser.

The compressor of this application, through setting up integrative liquid filling knockout, when the liquid level of liquid refrigerant in the knockout was less than the setting value, liquid level control structure opened the liquid filling pipe, and liquid refrigerant is supplied to the knockout, and when the liquid level of liquid refrigerant reached the setting value in the knockout, liquid level control structure closed the liquid filling pipe, stopped to supply liquid refrigerant to the knockout to have partial liquid refrigerant all the time in the guarantee knockout. Therefore, after the gaseous refrigerant from the evaporator enters the liquid separator, the gaseous refrigerant is mixed with the refrigerant in the liquid separator, and the specific volume and the temperature of the refrigerant entering the pump body of the compressor are reduced, so that the actual circulating refrigerant quantity of the compressor is increased, and the capacity of the compressor is further increased. Meanwhile, the temperature of the refrigerant entering the pump body of the compressor is reduced, the compression power consumption of the compressor can be reduced, the temperature of a flow field inside the compressor can be reduced, the running environment inside the compressor is improved, and therefore the capacity, energy efficiency and reliability of the compressor are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a front cross-sectional view of a liquid refill dispenser according to an embodiment of the utility model;

FIG. 2 is an enlarged view of the portion A of FIG. 1, in which the liquid refrigerant in the dispenser exceeds a set value and the float closes the outlet of the liquid replenishing pipe;

FIG. 3 is another state diagram of FIG. 2, in which the liquid refrigerant in the dispenser is less and the float is located at the bottom of the dispenser;

FIG. 4 is a top view of a cartridge bottom according to an embodiment of the present utility model;

FIG. 5 is a front cross-sectional view of a compressor according to an embodiment of the present utility model;

FIG. 6 is a front cross-sectional view of a first screen assembly according to an embodiment of the utility model;

FIG. 7 is a top view of a first screen support according to an embodiment of the utility model;

FIG. 8 is a B-B cross-sectional view of FIG. 7;

FIG. 9 is a top view of a first screen according to an embodiment of the present utility model;

FIG. 10 is an elevation view of a first screen according to an embodiment of the present utility model;

FIG. 11 is a top view of a first pressure ring according to an embodiment of the present utility model;

FIG. 12 is a cross-sectional view taken along the direction C-C in FIG. 11;

FIG. 13 is a front cross-sectional view of a second screen assembly according to an embodiment of the utility model;

FIG. 14 is a top view of a second screen support according to an embodiment of the present utility model;

FIG. 15 is a top view of a second screen according to an embodiment of the present utility model;

FIG. 16 is a D-D sectional view of FIG. 15;

wherein:

1-a cylinder; 2-a fluid supplementing pipe; 3-a liquid level control structure; 4-an air inlet pipe; 5-exhaust pipe; 6-a first screen assembly; 7-a second screen assembly; 8-a knockout; 9-a compressor;

11-a cylinder cover; 12-a barrel body; 13-barrel bottom; 31-a limiting cavity; 32-floating body; 33-guide plates; 34-through holes; 61-a first screen support; 62-a first screen; 63-a first press ring; 64-a first spin hole; 65-a first through-flow aperture; 71-a second screen holder; 72-a second filter screen; 73-a second press ring; 74-second spin holes; 75-a second vent.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Generally, an air conditioning system needs to control the superheat degree of a refrigerant flowing out of an evaporator to maintain an appropriate value to ensure that a vapor state of the gas refrigerant always flows into a compressor, however, it is difficult to precisely control the superheat degree of the evaporator in the current air conditioning system.

When the electronic expansion valve or the thermal expansion valve is adopted to control the superheat degree of the evaporator in the air conditioning system, the superheat degree is controlled to be 0 as much as possible in order to improve the energy efficiency of the system ⁺ That is, the superheat degree approaches 0 from the forward direction, in this case, suction liquid is extremely easy to be carried by the compressor, so that liquid impact of the compressor is caused, and the performance and reliability of the compressor are affected; if the superheat degree of the evaporator is controlled to be higher, after the refrigerant exits the evaporator, the refrigerant can be further superheated between pipe sections from the evaporator to the inlet of the compressor, so that the specific volume of the refrigerant at the inlet of the pump body of the compressor is further increased, and the quantity of the refrigerant actually circulated by the compressor is further reduced, thereby influencing the capacity and the energy efficiency of the compressor.

When the air conditioning system adopts the capillary tube to control the superheat degree of the evaporator, the superheat degree of the outlet of the evaporator is extremely easy to be higher due to the limited adjustable range of the capillary tube, so that the suction specific volume of the compressor is higher, and the capacity and the energy efficiency of the compressor are affected.

Therefore, the application provides a liquid supplementing type liquid separator and a compressor with the liquid separator, and when the superheat degree of an evaporator is high, suction overheat of the compressor can be prevented.

Referring to fig. 1, a liquid replenishing type liquid separator comprises a cylinder 1, a liquid replenishing pipe 2 and a liquid level control structure 3, wherein a sealed gas-liquid separation cavity is formed in the cylinder 1, the liquid replenishing pipe 2 is communicated with the gas-liquid separation cavity and is used for replenishing liquid refrigerant to the gas-liquid separation cavity, the liquid level control structure 3 is positioned in the gas-liquid separation cavity and is connected with the liquid replenishing pipe 2, and the liquid level control structure 3 is used for controlling the opening and closing of the liquid replenishing pipe 2, so that partial liquid refrigerant is always arranged at the bottom of the gas-liquid separation cavity.

According to the liquid supplementing type liquid separator, the liquid supplementing pipe 2 and the liquid level control structure 3 are arranged, when the liquid level of liquid refrigerant in the gas-liquid separation cavity is lower than a set value, the liquid level control structure 3 opens the liquid supplementing pipe 2 to supplement the liquid refrigerant to the liquid separator, and when the liquid level of the liquid refrigerant in the gas-liquid separation cavity reaches the set value, the liquid level control structure 3 closes the liquid supplementing pipe 2 to stop supplementing the liquid refrigerant to the liquid separator, so that part of the liquid refrigerant is always in the liquid separator. Therefore, after the gaseous refrigerant from the evaporator enters the liquid separator, the gaseous refrigerant is mixed with the refrigerant (in a gas-liquid two-phase state) in the liquid separator, and the specific volume and the temperature of the refrigerant entering the pump body of the compressor are reduced, so that the actual circulating refrigerant quantity of the compressor is increased, and the capacity of the compressor is further increased. Meanwhile, the temperature of the refrigerant entering the pump body of the compressor is reduced, the compression power consumption of the compressor can be reduced, the temperature of a flow field inside the compressor can be reduced, the running environment inside the compressor is improved, and therefore the capacity, energy efficiency and reliability of the compressor are improved.

Referring to fig. 1 to 3, the liquid level control structure 3 includes a spacing cavity 31 and a float 32 disposed in the spacing cavity 31, the spacing cavity 31 is disposed at the bottom of the gas-liquid separation cavity and is connected with the gas-liquid separation cavity, an outlet of the liquid supplementing pipe 2 in the gas-liquid separation cavity extends into the spacing cavity 31, the float 32 is configured such that, when the liquid level of the liquid refrigerant in the gas-liquid separation cavity reaches a set value, the float 32 seals the outlet of the liquid supplementing pipe 2.

It is easy to understand that the density of the floating body 32 is smaller than that of the liquid refrigerant, so that the floating body 32 floats on the liquid refrigerant, when the liquid refrigerant in the gas-liquid separation cavity is less, the floating body is positioned at the bottom of the liquid separator, the outlet of the liquid supplementing pipe 2 is opened, liquid supplementing is carried out on the liquid separator through the liquid supplementing pipe 2, the liquid level of the liquid refrigerant in the gas-liquid separation cavity is continuously increased along with the liquid level, the floating body 32 is increased along with the liquid level, and when the liquid level is increased to a certain height, the floating body 32 blocks the outlet of the liquid supplementing pipe 2, so that liquid supplementing is stopped for the liquid separator.

The utility model provides a liquid level control structure 3 adopts the body switch to realize liquid level control, when the liquid level is less than the setting value, body 32 descends, and fluid infusion pipe 2 opens, carries out the fluid infusion for the knockout, and when the liquid level reached the setting value, body 32 risees, and fluid infusion pipe 2 closes, stops to supplement liquid for the knockout, compares electronic switch, has simple structure, convenient to use, safe and reliable's characteristics.

Referring to fig. 1 and 4, the cylinder 1 comprises a cylinder cover 11, a cylinder body 12 and a cylinder bottom 13, and the cylinder cover 11 and the cylinder bottom 13 are respectively connected with the cylinder body 12 to form the cylinder 3. The limiting cavity 31 is arranged at the barrel bottom 13, specifically, the limiting cavity 31 is formed by enclosing a plurality of guide plates 33 vertically arranged at the barrel bottom 13, in this embodiment, the guide plates 33 are three, and enclose a square-like cavity with the side wall of the barrel bottom 13, of course, the guide plates 33 can also be four, and directly enclose a square cavity, and the guide plates 33 of one of the guide plates are provided with through holes 34 so as to communicate the limiting cavity 31 with the gas-liquid separation cavity, so that the two cavities can keep the same liquid level. The liquid supplementing pipe 2 is L-shaped, and the horizontal pipe passes through the cylinder body 12 and is connected with the vertical pipe, so that the outlet of the liquid supplementing pipe 2 is downward and extends into the limiting cavity 31 from the top of the limiting cavity 31. In this embodiment, the floating body 32 is a floating ball, and the fluid infusion tube 2 is a circular tube, so that the diameter of the floating body 32 is larger than the diameter of the outlet of the fluid infusion tube 2. The spacing chamber 31 is arranged such that the guide plate 33 is tangential to the outer surface of the float 32 when the float 32 seals the outlet of the fluid replacement tube 2, i.e. the side length of the square chamber enclosed by the guide plate 33 is equal to the diameter of the float 32.

The liquid level control structure 3 of this application sets up the diameter of body 32 and is greater than the diameter of the export of fluid replacement pipe 2, like this, body 32 can be sealed the export of fluid replacement pipe 2 completely, spacing chamber 31 sets up to when body 32 seals the export of fluid replacement pipe 2, deflector 33 is tangent with the surface of body 32, like this, body 32 is located spacing intracavity 31, can lead body 32 through spacing chamber 31, make body 32 only can reciprocate, thereby when the liquid level rises in the knockout, body 32 rises together with the liquid level, when the liquid level rises to the setting value, body 32 seals the export of fluid replacement pipe 2, and when the liquid level descends in the knockout, body 32 descends together with the liquid level, when the liquid level descends to the setting value, body 32 leaves the export of fluid replacement pipe 2, fluid replacement pipe 2 switches on, make up the liquid in the knockout.

It should be noted that, in addition to the floating body liquid level switch mode, other control modes may be adopted for the liquid level control structure 3, for example, a combination structure of a liquid level meter and an electromagnetic valve may be adopted, and a piston type hydraulic water level control valve may be adopted, so long as the liquid level control of the liquid refrigerant in the liquid separator can be realized, and the embodiment is not limited.

Referring to fig. 1 and 5, the liquid replenishing type liquid dispenser further has an air inlet pipe 4 and an air outlet pipe 5, wherein the air inlet pipe 4 is disposed at the top of the cylinder 1 and is connected with an evaporator of an air conditioning system, specifically, the air inlet pipe 4 is disposed at the center of the cylinder cover 11 and is communicated with the top of the gas-liquid separation chamber, the air outlet pipe 5 has an L-shaped combined pipe structure, and is inserted from the bottom of the cylinder 1 to the upper part of the gas-liquid separation chamber, specifically, a vertical straight pipe of the air outlet pipe 5 is inserted from the center of the cylinder bottom 13 to the gas-liquid separation chamber, and a horizontal pipe is used for communicating with the air suction end of the compressor 9.

Like this, after the gaseous refrigerant that comes from the evaporimeter gets into the knockout through intake pipe 4, mixes with the refrigerant in the knockout, plays the cooling effect, and the refrigerant after mixing gets into blast pipe 5, when passing the knockout bottom, further heat transfer with liquid refrigerant, and the temperature of refrigerant further reduces to make the refrigerant that gets into the compressor pump body obtain further optimization, thereby make compressor ability, energy efficiency, reliability obtain further promotion.

Referring to fig. 1, a first filter screen assembly 6 and a second filter screen assembly 7 are arranged in a gas-liquid separation cavity of a cylinder body 1 from top to bottom at intervals, wherein an outlet of an air inlet pipe 4 is located above the first filter screen assembly 6, an outlet of a liquid supplementing pipe 2 is located below the second filter screen assembly 7, an exhaust pipe 5 passes through the second filter screen assembly 7, and an inlet of the exhaust pipe 5 located in the gas-liquid separation cavity is located between the first filter screen assembly 6 and the second filter screen assembly 7.

Like this, first filter screen subassembly 6 can filter and vapour and liquid separation to the refrigerant from the evaporimeter, and second filter screen subassembly 7 can filter and vapour and liquid separation to the refrigerant that gets into from the fluid replacement pipe 2 to prevent that the impurity that the refrigerant carried from entering into blast pipe 5, then entering into the compressor pump body, lead to the pump body wearing and tearing, arouse the compressor trouble.

Referring to fig. 6 to 12, the first screen assembly 6 includes a first screen bracket 61, a first screen 62, and a first pressing ring 63, wherein the first screen bracket 61 is connected to an inner wall of the barrel 12, and the first pressing ring 63 fixes the first screen 62 to a top surface of the first screen bracket 61.

The first screen support 61 includes a disc, on which a plurality of first swirl holes 64 and a plurality of first through-flow holes 65 are circumferentially provided at intervals, and the outer periphery of the disc extends downward to form an annular wall connected to the inner wall of the barrel 12. The center of the first screen 22 is provided with an upward hemispherical screen structure, and the periphery of the hemispherical screen structure is an annular tabletting structure. The first pressing ring 63 is a circular pressing plate structure. The first screen 62 is a main component of the first screen assembly 6 that performs a separation filtering function, and the first screen 62 mainly separates the gas-liquid mixture medium by using a screen separation principle. The first screen 62 has wires and mesh openings. Because the particle sizes of the gaseous medium and the liquid medium are different, when the gas-liquid mixed medium passes through the first screen 62, the gaseous medium with smaller particle size can pass through the mesh openings directly, and the liquid medium with larger particle size and impurities can not pass through the mesh openings, are blocked by the mesh openings and are attached to the surface of the mesh openings.

Meanwhile, the first filter screen support 61 is provided with a first rotary hole 64, and referring to fig. 12, the first rotary hole 64 has a flow guiding structure, and the gas-liquid mixed medium passing through the first screen 62 is further filtered and separated by utilizing the principle of baffling separation. When the small particle liquid medium passing through the mesh holes flows along with the gaseous medium through the first spiral holes 64, the small particle liquid medium can change the moving direction to baffle through the first spiral holes 64 when encountering the blocking of the flow guiding structure of the first spiral holes 64 because the inertia of the small particle liquid medium is larger than that of the gaseous medium, and the small particle liquid medium can not change the direction immediately when encountering the blocking of the flow guiding structure of the first spiral holes 64 because of the larger inertia and can collide on the flow guiding structure of the spiral holes and be adhered to the flow guiding structure.

It can be seen that, the first screen assembly 6 of this application, first screen cloth 62 are located the top surface of first screen cloth support 61, utilize the silk screen separation principle to filter and vapour and liquid separation to the refrigerant that comes from the evaporimeter, both can prevent that the impurity that the refrigerant of evaporimeter carried from entering blast pipe 5, still can make the occupation ratio of liquid medium in the gas-liquid mixture medium that gets into blast pipe 5 less when the evaporimeter superheat degree is low, prevent that the compressor from breathing in the area liquid.

Referring to fig. 13 to 16, the second screen assembly 7 includes a second screen bracket 71, a second screen 72, and a second pressing ring 73, wherein the second screen bracket 71 is connected to an inner wall of the barrel 12, the second pressing ring 73 fixes the second screen 72 to a bottom surface of the second screen bracket 71, and the centers of the second screen bracket 71 and the second screen 72 are provided with through holes through which the exhaust pipe 5 passes.

The second filter screen support 71 has substantially the same structure as the first filter screen support 61, and includes a disc, on which a plurality of second screw holes 74 and a plurality of second through-flow holes 75 are provided at intervals along the circumferential direction, the outer edge of the disc extends upward to form an annular wall connected to the inner wall of the barrel 12, and the center of the disc is provided with a through-hole through which the exhaust pipe 5 passes. The center of the second screen 22 is a through hole through which the air supply and exhaust pipe 5 passes, so the middle part of the second screen 22 is provided with a circle of downward arc surface screen structures, and both sides of the arc surface screen structures are annular tabletting structures. The second press ring 73 has the same structure as the first press ring 62.

The filtering principle of the second filter screen assembly 7 is the same as that of the first filter screen assembly 6, and will not be described again here. The second filter screen assembly 7 of this application, second screen cloth 72 are located the bottom surface of second filter screen support 71, utilize silk screen separation principle to filter and vapour and liquid separation to the refrigerant that comes from fluid infusion pipe 2, both can prevent that the impurity that the refrigerant of fluid infusion pipe 2 carried from entering blast pipe 5, still can make the occupation ratio of liquid medium in the gas-liquid mixture medium that gets into blast pipe 5 less when the evaporimeter superheat degree is low, prevent that the compressor from breathing in and taking the liquid.

From the above description, it can be seen that the liquid-supplementing type liquid dispenser of the present application ensures that the liquid refrigerant is always in the liquid dispenser through the liquid supplementing pipe and the liquid level control structure thereof, so that when the gaseous refrigerant from the evaporator enters the liquid dispenser, the gaseous refrigerant is mixed with the refrigerant in the liquid dispenser for cooling, and then enters the compressor pump body through the exhaust pipe for compression in the compressor. The specific volume and the temperature of the refrigerant entering the compressor can be guaranteed to be lower through the scheme, so that the actual circulating refrigerant quantity of the compressor can be increased, the running environment inside the compressor can be improved, and the capacity, the energy efficiency and the reliability of the compressor can be improved.

The embodiment also provides a compressor, as shown in fig. 5, in which the liquid separator 8 and the compressor 9 are integrally disposed, the liquid separator 8 may be any liquid replenishing type liquid separator, and the air suction end of the compressor 9 is communicated with the air exhaust pipe 5 of the liquid replenishing type liquid separator.

From the above description, it can be seen that the compressor of the present application is provided with an integrated liquid-supplementing type liquid dispenser, and the inside of the liquid dispenser is guaranteed to always have liquid refrigerant through the liquid-supplementing pipe of the liquid dispenser and the liquid level control structure thereof, so that after the gaseous refrigerant from the evaporator enters the liquid dispenser, the gaseous refrigerant can be mixed with the refrigerant in the liquid dispenser for cooling, and then enters the pump body of the compressor through the exhaust pipe for compression in the compressor. The specific volume and the temperature of the refrigerant entering the compressor can be guaranteed to be lower through the scheme, so that the actual circulating refrigerant quantity of the compressor can be increased, the running environment inside the compressor can be improved, and the capacity, the energy efficiency and the reliability of the compressor can be improved.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures. In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a fluid infusion formula knockout, includes barrel (1), the inside inclosed gas-liquid separation chamber that forms of barrel (1), its characterized in that still includes:

the liquid supplementing pipe (2) is communicated with the gas-liquid separation cavity, and the liquid supplementing pipe (2) is used for supplementing liquid refrigerant to the gas-liquid separation cavity;

the liquid level control structure (3) is positioned in the gas-liquid separation cavity and connected with the liquid supplementing pipe (2), and the liquid level control structure (3) is used for controlling the opening and closing of the liquid supplementing pipe (2) so that partial liquid refrigerant is always arranged at the bottom of the gas-liquid separation cavity.

2. The liquid replenishing dispenser according to claim 1, wherein the liquid level control structure (3) comprises a limiting cavity (31) and a floating body (32) arranged in the limiting cavity (31);

the limiting cavity (31) is arranged at the bottom of the gas-liquid separation cavity and is communicated with the gas-liquid separation cavity, and an outlet of the liquid supplementing pipe (2) positioned in the gas-liquid separation cavity extends into the limiting cavity (31);

the floating body (32) is arranged in such a way that when the liquid level in the gas-liquid separation cavity reaches a set value, the floating body (32) seals the outlet of the liquid supplementing pipe (2).

3. The liquid replenishing type liquid dispenser according to claim 2, wherein the limiting cavity (31) comprises a plurality of guide plates (33) vertically arranged at the bottom of the gas-liquid separation cavity;

the guide plate (33) is provided with a through hole (34) so that the limiting cavity (31) is communicated with the gas-liquid separation cavity;

the outlet of the liquid supplementing pipe (2) is downwards arranged and extends into the limiting cavity (31) from the top of the limiting cavity (31);

the largest cross-sectional area of the floating body (32) is larger than the cross-sectional area of the outlet of the fluid supplementing pipe (2), so that the outlet of the fluid supplementing pipe (2) can be sealed when the floating body (32) floats;

the limiting cavity (31) is arranged in a way that when the floating body (32) seals the outlet of the fluid supplementing pipe (2), the guide plate (33) is tangential to the outer surface of the floating body (32).

4. The liquid replenishing type liquid dispenser according to claim 1, further comprising an air inlet pipe (4) and an air outlet pipe (5) which are communicated with the gas-liquid separation chamber;

the air inlet pipe (4) is arranged at the top of the cylinder body (1), and the air outlet pipe (5) is inserted into the upper part of the gas-liquid separation cavity from the bottom of the cylinder body (1).

5. The liquid-filled dispenser of claim 4, further comprising a first screen assembly (6) and a second screen assembly (7) disposed in the gas-liquid separation chamber at intervals;

the air inlet pipe (4) is positioned above the first filter screen assembly (6), and the liquid supplementing pipe (2) is positioned below the second filter screen assembly (7);

the exhaust pipe (5) passes through the second filter screen assembly (7) so that an inlet of the exhaust pipe (5) positioned in the gas-liquid separation cavity is positioned between the first filter screen assembly (6) and the second filter screen assembly (7).

6. The liquid refill dispenser according to claim 5, wherein the first screen assembly (6) comprises a first screen support (61), a first screen (62) and a first pressure ring (63);

the first filter screen support (61) is connected to the inner wall of the cylinder body (1), and the first press ring (63) fixes the first screen (62) to the top surface of the first filter screen support (61).

7. The fluid infusion type dispenser according to claim 6, wherein the first screen support (61) is provided with a plurality of first swirl holes (64) and a plurality of first through holes (65) at intervals along the circumferential direction.

8. The liquid refill dispenser according to claim 5, wherein the second screen assembly (7) comprises a second screen support (71), a second screen (72) and a second pressure ring (73);

the second filter screen bracket (71) is connected to the inner wall of the cylinder body (1), and the second press ring (73) is used for fixing the second filter screen (72) on the bottom surface of the second filter screen bracket (71);

and through holes for the exhaust pipe (5) to pass through are formed in the centers of the second filter screen bracket (71) and the second filter screen (72).

9. The liquid replenishing dispenser according to claim 8, wherein the second screen support (71) is provided with a plurality of second swirl holes (74) and a plurality of second vent holes (75) at intervals along the circumferential direction.

10. A compressor comprising a liquid-filled dispenser according to any one of claims 1 to 9, the suction end of the compressor being in communication with the discharge pipe of the liquid-filled dispenser.