CN107882739B - Exhaust assembly, pump body assembly, compressor and heat exchange equipment - Google Patents

Exhaust assembly, pump body assembly, compressor and heat exchange equipment Download PDF

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Publication number
CN107882739B
CN107882739B CN201711043743.7A CN201711043743A CN107882739B CN 107882739 B CN107882739 B CN 107882739B CN 201711043743 A CN201711043743 A CN 201711043743A CN 107882739 B CN107882739 B CN 107882739B
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China
Prior art keywords
exhaust
section
pump body
assembly
valve plate
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CN201711043743.7A
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CN107882739A (en
Inventor
胡余生
魏会军
王珺
杨欧翔
张心爱
余冰
苗朋柯
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Priority to CN201711043743.7A priority Critical patent/CN107882739B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The application provides an exhaust assembly, a pump body assembly, a compressor and heat exchange equipment. Wherein, exhaust assembly sets up in the gas vent department of pump body subassembly, exhaust assembly includes: the exhaust valve block shields the exhaust port, and the distance from the central axis P of the joint of the exhaust valve block and the pump body component to the central axis Q of the exhaust port is L; the valve block baffle is overlapped on the exhaust valve block, the valve block baffle comprises a straight section and a lift section which are sequentially connected, the straight section fixes the valve block baffle at the exhaust port, the lift section extends towards the direction far away from the exhaust valve block, the distance from the boundary line S between the straight section and the lift section to the central line M of the straight section is L1, the maximum lift height H0 of the lift section is an arc plate-shaped structure, the curvature radius of the lift section is R,the application solves the problems of poor running performance and large noise of the pump body component caused by unreasonable structural design of the valve plate baffle plate of the exhaust component in the prior art.

Description

Exhaust assembly, pump body assembly, compressor and heat exchange equipment
Technical Field
The application relates to refrigeration technology equipment, in particular to an exhaust assembly, a pump body assembly, a compressor and heat exchange equipment.
Background
In the technical field of pump body assemblies, an exhaust assembly is used for opening or closing an exhaust port of the pump body assembly, and generally, the exhaust assembly comprises the following components: exhaust valve block and valve block baffle. The exhaust valve plate controls the opening or closing of the exhaust port through the elastic rigidity of the exhaust valve plate, and the valve plate baffle is used for controlling the lifting height and the running form of the exhaust valve plate.
However, in the prior art, the exhaust assembly has the following problems in its exhaust process:
1. the impact stress of the exhaust valve plate caused by the excessively high rise of the exhaust valve plate is excessively large, so that the exhaust valve plate is easy to break;
2. the longitudinal section profile line of valve block baffle designs unreasonably, influences effective flow area and the flow resistance of refrigerant, and has reduced pump body subassembly's operational performance and reliability, leads to pump body subassembly to produce great noise, influences user's use experience.
Disclosure of Invention
The application mainly aims to provide an exhaust assembly, a pump body assembly, a compressor and heat exchange equipment, so as to solve the problems of poor operation performance and high noise of the pump body assembly caused by unreasonable structural design of a valve plate baffle plate of the exhaust assembly in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided an exhaust assembly provided at an exhaust port of a pump body assembly, the exhaust assembly comprising: the exhaust valve plate is arranged for shielding the exhaust port, and the distance from the fixed central axis P of the joint of the exhaust valve plate and the pump body component to the central axis Q of the exhaust port is L; the valve block baffle is overlapped on the exhaust valve block and comprises a straight section and a lift section which are sequentially connected, the valve block baffle is fixed at the exhaust port through the straight section, the lift section extends towards the direction far away from the exhaust valve block, the distance from the boundary line S between the straight section and the lift section to the fixed central line M of the straight section is L1, the maximum lift height of the lift section is H0, the lift section is of an arc plate-shaped structure, the curvature radius of the lift section is R,
further, the fixed central axis P of the exhaust valve plate is coaxially disposed with the fixed central axis M of the straight section.
Further, the pump body component is provided with a mounting hole, the exhaust valve plate is provided with a first connecting through hole, the central axis of the first connecting through hole is a fixed central axis P, the valve plate baffle is provided with a second connecting through hole, the central axis of the second connecting through hole is a fixed central axis M, and the central axes of the fixed central axis P, the fixed central axis M and the mounting hole are coaxially arranged.
Further, the straight section is provided with a second connecting through hole, and the straight section and the end face of the pump body assembly, where the exhaust port is arranged, are arranged in parallel.
Further, the exhaust assembly further includes: the fastener sequentially passes through the second connecting through hole and the first connecting through hole and then is arranged on the mounting hole so as to mount the exhaust valve plate and the valve plate baffle on the pump body assembly.
Further, the exhaust valve plate is provided with a connecting section, a middle section and a shielding section which are sequentially connected, the connecting section is provided with a first connecting hole, the shielding section shields the exhaust port, and the width of the middle section is smaller than that of the connecting section and/or the shielding section.
Further, one end of the lift segment near the straight segment has a converging segment.
Further, the exhaust valve plate and the valve plate baffle are riveted and fixed on the pump body assembly.
According to another aspect of the present application, there is provided a pump body assembly comprising the above-described exhaust assembly.
Further, the exhaust assembly is arranged on the outer side wall of the cylinder of the pump body assembly or the end face of the flange, the outer side wall of the cylinder or the end face of the flange is provided with a containing groove and an exhaust port, the exhaust port is located at the bottom of the containing groove, and the exhaust assembly is arranged in the containing groove and shields the exhaust port.
According to another aspect of the present application, there is provided a compressor comprising the pump body assembly described above.
According to another aspect of the present application, there is provided a heat exchange apparatus comprising the compressor described above.
By applying the technical scheme of the application, the exhaust assembly is arranged at the exhaust port of the pump body assembly and comprises an exhaust valve plate and a valve plate baffle. The exhaust valve block is arranged to cover the exhaust port, and the distance from the fixed central axis P of the joint of the exhaust valve block and the pump body component to the central axis Q of the exhaust port is L. The valve block baffle is overlapped on the exhaust valve block, and comprises a straight section and a lift section which are sequentially connected, the valve block baffle is fixed at the exhaust port through the straight section, the lift section extends towards the direction far away from the exhaust valve block, the distance from the boundary line S between the straight section and the lift section to the fixed central line M of the straight section is L1, the maximum lift height of the lift section is H0, the lift section is of an arc plate-shaped structure, the curvature radius of the lift section is R,
through carrying out the optimization setting to the relevant structural parameter of discharge valve block and valve block baffle, not only can ensure the structure, the operational reliability of discharge valve block, can also improve the working property and the reliability of the pump body subassembly in lower frequency and higher frequency range, improved the noise level of pump body subassembly to a certain extent. Therefore, the related setting of the structural parameters of the exhaust assembly can improve the operation performance of the pump assembly, improve the reliability of the pump assembly, reduce the working noise of the pump assembly, and have the advantages of simpler structural design, easy processing and reduced manufacturing cost of the pump assembly.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 illustrates a partial cross-sectional view of an embodiment of an exhaust assembly according to the present application mounted on a flange of a pump body assembly;
FIG. 2 shows a cross-sectional view of a valve plate baffle of the exhaust assembly of FIG. 1;
FIG. 3 illustrates a top view of a valve plate baffle of the exhaust assembly of FIG. 2; and
FIG. 4 shows a cross-sectional view of an exhaust valve plate of the exhaust assembly of FIG. 1;
fig. 5 shows the compressor performance W and the compressor performance in the present embodimentIs a correspondence map of (a).
Wherein the above figures include the following reference numerals:
11. an exhaust port; 12. a mounting hole; 20. an exhaust valve plate; 21. a first connection through hole; 30. a valve plate baffle; 31. a straight section; 32. a lift segment; 33. a second connection through hole; 34. a constriction section; 40. a fastener; 51. a receiving groove; 60. and (3) a flange.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present application.
The application provides an exhaust assembly, a pump assembly, a compressor and heat exchange equipment, and aims to solve the problems that in the prior art, the valve plate baffle plate of the exhaust assembly is unreasonable in structural design, so that the pump assembly is poor in running performance and large in noise.
As shown in fig. 1, the exhaust assembly is arranged at the exhaust port of the pump body assemblyAt 11, the exhaust assembly includes an exhaust valve sheet 20 and a valve sheet baffle 30. Wherein, the exhaust valve plate 20 shields the exhaust port 11, and the distance from the fixed central axis P of the connection part of the exhaust valve plate 20 and the pump body component to the central axis Q of the exhaust port 11 is L. The valve sheet shutter 30 is stacked on the exhaust valve sheet 20, and the valve sheet shutter 30 includes a straight section 31 and a lift section 32 connected in sequence, the valve sheet shutter 30 is fixed at the exhaust port 11 by the straight section 31, the lift section 32 extends toward a direction away from the exhaust valve sheet 20, a distance from a boundary line S between the straight section 31 and the lift section 32 to a fixed center line M of the straight section 31 is L1, a maximum lift height of the lift section 32 is H0, the lift section 32 is an arc-shaped plate-like structure, and a radius of curvature of the lift section 32 is R, wherein,
by optimally setting the relevant structural parameters of the exhaust valve plate 20 and the valve plate baffle plate 30, the structure and the operation reliability of the exhaust valve plate 20 can be ensured, the working performance and the reliability of the pump body assembly in a lower frequency range and a higher frequency range can be improved, and the noise level of the pump body assembly is improved to a certain extent. Like this, the above-mentioned structural parameter's of exhaust subassembly of this embodiment correlation is set up can promote the running performance of pump body subassembly, improves the reliability of pump body subassembly, reduces pump body subassembly's operational noise, and structural design is comparatively simple, easy processing, reduces pump body subassembly's manufacturing cost.
In the present embodiment, the molded line of the valve plate shutter 30 (i.e., a continuous curve composed of the straight section 31, the lift section 32, the maximum lift height H0, and the radius of curvature R of the lift section 32) greatly affects the actual movement vibration mode of the exhaust valve plate 20. In the process of opening or closing the exhaust valve plate 20, the exhaust valve plate 20 is gradually attached to or separated from the valve plate baffle 30, and the winding length of the exhaust valve plate 20 (the actual non-attached part of the exhaust valve plate baffle 30) determines the instantaneous rigidity of the exhaust valve plate, so that the operation characteristic of the exhaust valve plate 20 can be directly influenced, the effective flow area of the refrigerant is further changed, the exhaust loss is changed, and the refrigerating capacity and the power of the pump body assembly are finally influenced.
In this embodiment, the exhaust valve plate 20 controls the opening or closing of the exhaust port 11 through its own elastic stiffness, and the valve plate baffle 30 is used to control the elevation and the operation mode of the exhaust valve plate 20, so as to protect the exhaust valve plate 20 and prevent the exhaust valve plate 20 from being excessively bent to cause breakage. Wherein, the installation order of exhaust subassembly is: the exhaust valve plate 20 is firstly arranged at the exhaust port 11 of the pump body assembly, and then the valve plate baffle 30 is fixedly connected with the exhaust valve plate 20 and the pump body assembly.
As shown in fig. 1, 2 and 4, the fixed center axis P of the discharge valve plate 20 is disposed coaxially with the fixed center axis M of the straight section 31. Like this, the fixed position of discharge valve piece 20 and valve block baffle 30 and pump body subassembly is the same, and then makes the assembly of discharge valve piece and pump body subassembly simpler and more convenient, easy, reduces staff's intensity of labour. Meanwhile, when the exhaust valve plate 20 is used for exhausting, the arrangement can ensure that the rising height of the exhaust valve plate 20 is limited by the valve plate baffle 30, and further ensure the normal operation of an exhaust assembly.
Specifically, the above arrangement ensures that the measurement start points of L and L1 overlap, and that the distance from the boundary line S between the straight section 31 and the lift section 32 to the fixed center line M of the straight section 31 on the valve plate baffle 30 is L1, and the distance from the fixed center axis P of the exhaust valve plate 20 to the center axis Q of the exhaust port 11 is L. The maximum lift height of the lift segment 32 is H0, which is the height of a line segment E on the surface of the valve sheet shutter 30 facing the discharge valve sheet 20 at a distance L from the fixed center axis P.
As shown in fig. 1 to 4, the pump body assembly is provided with a mounting hole 12, the exhaust valve plate 20 has a first connecting through hole 21, the central axis of the first connecting through hole 21 is a fixed central axis P, the valve plate baffle 30 has a second connecting through hole 33, the central axis of the second connecting through hole 33 is a fixed central axis M, and the fixed central axis P, the fixed central axis M and the central axis of the mounting hole 12 are coaxially arranged. The arrangement makes the installation or the disassembly of the exhaust assembly and the pump body assembly easier and simpler, and reduces the labor intensity of staff. Meanwhile, the normal exhaust of the pump body assembly can be guaranteed through the arrangement, and the normal operation of the pump body assembly is guaranteed. Therefore, the arrangement ensures that the measurement starting points of the L and the L1 coincide, thereby facilitating the measurement of L, L and H0 and reducing the labor intensity of staff.
As shown in fig. 1 to 3, the straight section 31 has a second connecting through hole 33, and the straight section 31 is disposed in parallel with the end face of the pump body assembly where the exhaust port 11 is disposed. Like this, above-mentioned setting makes the part of discharge valve piece 20 between straight section 31 and the pump body subassembly laminate all the time on the terminal surface of the setting gas vent 11 of pump body subassembly, and valve block baffle 30 begins perk certain angle from straight section 31 and the boundary line S department of lift section 32 to form certain lift height, guarantee that the pump body subassembly can be through gas vent 11 normal exhaust.
As shown in fig. 1, the exhaust assembly further includes a fastener 40. The fastener 40 is disposed on the mounting hole 12 after passing through the second connecting through hole 33 and the first connecting through hole 21 in sequence, so as to mount the exhaust valve plate 20 and the valve plate baffle 30 on the pump body assembly. Specifically, the fastener 40 is fixed to the pump body assembly after passing through the second connecting through hole 33 and the first connecting through hole 21, so as to mount the exhaust assembly and the pump body assembly together. The connection mode enables the assembly or the disassembly of the exhaust assembly and the pump body assembly to be easier and simpler. Alternatively, the fastener 40 is a bolt. The bolts are standard components, so that the processing cost of the pump body assembly can be reduced.
The connection between the exhaust assembly and the pump body assembly is not limited to this. Optionally, the exhaust valve plate and the valve plate baffle are riveted and fixed on the pump body assembly. The arrangement can ensure the connection stability of the exhaust assembly and the pump body assembly and the structural stability of the exhaust assembly and the pump body assembly, ensure the normal operation of the pump body assembly and prolong the service life of the exhaust assembly.
In this embodiment, the exhaust valve plate 20 has a connecting section, a middle section, and a shielding section connected in sequence, the connecting section has a first connecting hole 21, the shielding section shields the exhaust port 11, and the width of the middle section is smaller than the width of the connecting section and/or the shielding section. Optionally, the orthographic projection of the exhaust port 11 onto the shield is located within the shield. Like this, when above-mentioned setting can guarantee that exhaust assembly is in the closed condition, shelter from the section and can shelter from gas vent 11 completely for the gas in the pump body subassembly obtains fully compressing, and then improves the work efficiency of pump body subassembly.
As shown in FIG. 3, the end of the lift segment 32 adjacent to the straight segment 31 has a converging segment 34. Specifically, at the boundary line S of the lift segment 32 and the straight segment 31, one end of the lift segment 32 near the straight segment 31 has a contraction segment 34. Like this, above-mentioned setting makes the bending operation of valve block baffle 30 in boundary line S department easier, and then makes the processing of valve block baffle 30 easier, shortens the processing consuming time.
As shown in fig. 1, the present application further provides a pump body assembly, including the exhaust assembly described above.
As shown in fig. 1, the exhaust assembly is provided on an end surface of a flange 60 (main bearing or sub bearing) of the pump body assembly, the end surface of the flange 60 has a housing groove 51 and an exhaust port 11, the exhaust port 11 is located at a bottom of the housing groove 51, and the exhaust assembly is provided in the housing groove 51 and shields the exhaust port 11. In this way, the above arrangement effectively avoids excessive opening of the exhaust valve plate 20, and ensures the exhaust performance of the cylinder.
Specifically, when the gas pressure in the cylinder is greater than the external space pressure (exhaust pressure), the exhaust valve plate 20 opens, starting the exhaust; if the pressure inside the communicating following cylinder is still lower than the exhaust pressure, the exhaust valve plate 20 is not operated at this time. At this time, the pump body assembly continues to operate and compress until the interior of the cylinder is communicated with the exhaust port 11, and the gas in the cylinder is pressed into the external space, thereby completing the exhaust process. The exhaust system of the exhaust port 11 is a forced exhaust system.
In other embodiments not shown in the drawings, the exhaust assembly is disposed on an outer sidewall of a cylinder of the pump body assembly, the outer sidewall of the cylinder having a receiving groove and an exhaust port, the exhaust port being located at a bottom of the receiving groove, the exhaust assembly being disposed in the receiving groove and shielding the exhaust port. Therefore, the exhaust valve plate is effectively prevented from being excessively opened, and the exhaust performance of the cylinder is guaranteed.
The application also provides a compressor (not shown) comprising the pump body assembly described above. Alternatively, the compressor is a rolling rotor compressor. The type of the compressor is not limited to this, and may be a wobble rotor compressor, an articulated vane rotor compressor, a vane compressor, or the like.
The exhaust assembly in this embodiment is mainly applied to compressors of small series (such as C32 series) and large series (such as C55 series), and the design ranges of each structural parameter L, L, H0 and R of the compressors are shown in table 1:
TABLE 1 structural parameter design Range for small and large series compressors
From the design parameters of the high efficiency low noise compressor, the series are different,always kept within a reasonable range of values, the above-mentioned parameter relationships should be integrated in view of the defined integrity of the compressor operating mode shape.
Generally, if the lighter the compressor operating conditions, the smaller the compressor displacement,the closer to 0.0089, i.e. the more the profile of the valve sheet baffle 30 tends to flatten, the easier the discharge valve sheet 20 is to fit the valve sheet baffle 30 during opening or closing, and the shorter the instantaneous winding length of the discharge valve sheet 20. On the premise of consistent other conditions, the smaller the flutter fluctuation of the exhaust valve plate 20 is, so that the compressor is more suitable for compressors with high requirements on low-frequency light-duty performance; if the compressor is operated more heavily, its displacement is greater, +.>The closer to 0.0050, namely the steeper the molded line of the valve plate baffle 30, the lift height of the exhaust valve plate 20 is increased in the opening or closing process, the falling speed of the exhaust valve plate 20 is accelerated, and the refrigerant gas reflux is reduced, so that the exhaust valve plate can be largerThe performance is improved to a certain extent, and the noise is reduced, so that the method is more suitable for compressors with high requirements on high-frequency heavy working condition capability.
The compressor performance W in this embodimentThe correspondence of (2) is shown in FIG. 5, then +.>Is->In the range, the compressor performance W is poor, < +.>The performance W of the compressor is good in the range, the reliability is high, and the noise of the compressor in the running process is small. Wherein the curve K1 shows the performance W1 and +.>The curve K2 represents the performance W2 and +.>Corresponding relation curve of (3).
The application also provides a heat exchange device (not shown) comprising a compressor as described above. Optionally, the heat exchange device is an air conditioner.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
through carrying out the optimization setting to the relevant structural parameter of discharge valve block and valve block baffle, not only can ensure the structure, the operational reliability of discharge valve block, can also improve the working property and the reliability of the pump body subassembly in lower frequency and higher frequency range, improved the noise level of pump body subassembly to a certain extent. Therefore, the related setting of the structural parameters of the exhaust assembly can improve the operation performance of the pump assembly, improve the reliability of the pump assembly, reduce the working noise of the pump assembly, and have the advantages of simpler structural design, easy processing and reduced manufacturing cost of the pump assembly.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. An exhaust assembly provided at an exhaust port (11) of a pump body assembly, characterized in that the exhaust assembly comprises:
the exhaust valve plate (20) is arranged for shielding the exhaust port (11), and the distance from the fixed central axis P of the joint of the exhaust valve plate (20) and the pump body assembly to the central axis Q of the exhaust port (11) is L;
a valve sheet shutter (30) which is stacked on the exhaust valve sheet (20), and the valve sheet shutter (30) includes a straight section (31) and a lift section (32) which are sequentially connected, the valve sheet shutter (30) is fixed at the exhaust port (11) by the straight section (31), the lift section (32) extends toward a direction away from the exhaust valve sheet (20), a distance from a boundary line S between the straight section (31) and the lift section (32) to a fixed center line M of the straight section (31) is L1, a maximum lift height of the lift section (32) is H0, the lift section (32) is of an arc-shaped plate structure, and a radius of curvature of the lift section (32) is R, wherein,
2. the exhaust assembly according to claim 1, characterized in that the fixed central axis P of the exhaust valve plate (20) is arranged coaxially with the fixed central axis M of the straight section (31).
3. The exhaust assembly according to claim 1, characterized in that the pump body assembly is provided with a mounting hole (12), the exhaust valve plate (20) is provided with a first connecting through hole (21), the central axis of the first connecting through hole (21) is the fixed central axis P, the valve plate baffle (30) is provided with a second connecting through hole (33), the central axis of the second connecting through hole (33) is the fixed central axis M, and the fixed central axis P, the fixed central axis M and the central axis of the mounting hole (12) are coaxially arranged.
4. A vent assembly according to claim 3, wherein the straight section (31) has the second connecting through hole (33), and the straight section (31) is disposed in parallel with an end face of the pump body assembly where the vent port (11) is disposed.
5. The exhaust assembly of claim 3, further comprising:
the fastener (40) sequentially penetrates through the second connecting through hole (33) and the first connecting through hole (21) and then is arranged on the mounting hole (12) so as to mount the exhaust valve plate (20) and the valve plate baffle plate (30) on the pump body assembly.
6. A vent assembly according to claim 3, wherein the vent panel (20) has a connecting section, a middle section and a shielding section connected in sequence, the connecting section having the first connecting hole (21), the shielding section shielding the vent (11) arrangement, the middle section having a smaller width than the connecting section and/or the shielding section.
7. An exhaust assembly according to claim 1, characterized in that the end of the lift segment (32) adjacent to the straight segment (31) has a converging segment (34).
8. The exhaust assembly according to claim 1, wherein the exhaust valve plate (20) and the valve plate baffle (30) are riveted to the pump body assembly.
9. A pump body assembly comprising the exhaust assembly of any one of claims 1 to 8.
10. Pump body assembly according to claim 9, characterized in that the exhaust assembly is arranged on the outer side wall of the cylinder of the pump body assembly or on the end face of the flange (60), the outer side wall of the cylinder or the end face of the flange (60) is provided with a containing groove (51) and an exhaust port (11), the exhaust port (11) is positioned at the bottom of the containing groove (51), and the exhaust assembly is arranged in the containing groove (51) and shields the exhaust port (11).
11. A compressor comprising the pump body assembly of claim 10.
12. A heat exchange apparatus comprising the compressor of claim 11.
CN201711043743.7A 2017-10-30 2017-10-30 Exhaust assembly, pump body assembly, compressor and heat exchange equipment Active CN107882739B (en)

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