CN109882395B - Pressure control air bag type clearance stepless adjustment executing mechanism and method - Google Patents
Pressure control air bag type clearance stepless adjustment executing mechanism and method Download PDFInfo
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- CN109882395B CN109882395B CN201910325438.XA CN201910325438A CN109882395B CN 109882395 B CN109882395 B CN 109882395B CN 201910325438 A CN201910325438 A CN 201910325438A CN 109882395 B CN109882395 B CN 109882395B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 14
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 210000004712 air sac Anatomy 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The invention discloses a pressure control air bag type clearance stepless adjustment executing mechanism and a pressure control air bag type clearance stepless adjustment executing method. The pressure control air bag type clearance stepless adjustment executing mechanism comprises: a housing; the air bag assembly is arranged in the shell, and a clearance volume cavity is formed between the inner cavity of the shell and the outer surface of the air bag assembly; and the gas control system is used for controlling the pressure of the pre-filling gas in the air bag assembly and adjusting the air bag volume by changing the pressure of the pre-filling gas. According to the pressure control air bag type clearance stepless regulation executing mechanism and the pressure control air bag type clearance stepless regulation executing method, the air bag is arranged in the shell, a certain pressure gas medium is pre-filled in the air bag, the pressure of the air bag pre-inflating body medium is regulated by utilizing the gas control system, the stepless regulation of the clearance volume can be realized within a certain range, the air displacement of the compressor is regulated, and a piston driving system with a complex structure is not required.
Description
Technical Field
The invention belongs to the technical field of air quantity adjustment of reciprocating compressors, and particularly relates to a pressure control air bag type clearance stepless adjustment executing mechanism and a method.
Background
The rated displacement of the reciprocating compressor is determined in the early stage of structural design, however, in actual production, in order to meet the production operation requirement, the reciprocating compressor is not always in a full-load working state, and the displacement of the reciprocating compressor needs to be regulated within a certain range. The clearance stepless adjusting technology changes the cylinder cover of the compressor cylinder into a clearance stepless adjusting executing mechanism, can realize stepless adjustment of clearance volume, further changes the volume coefficient of the compressor, realizes stepless adjustment of the displacement of the compressor, is convenient to adjust and reliable in performance, and is a common air quantity adjusting method.
The existing clearance adjusting executing mechanism mainly comprises an executing mechanism shell, a clearance piston rod, a driving mechanism and the like, and the clearance piston is driven to change positions in a hydraulic, electric, pneumatic, manual and other modes to obtain a clearance volume with proper size and lock the clearance volume. When the clearance piston moves to the side of the compressor cylinder for adjustment, the driving force of the clearance adjustment actuating mechanism is designed according to the highest working pressure (exhaust pressure) of the compressor cylinder to overcome the system friction force and the force of the medium pressure in the compressor cylinder acting on the clearance piston. For clearance pistons with larger diameters, the clearance piston rod needs a large driving force to realize clearance adjustment, and a driving mechanism is complex and heavy.
Disclosure of Invention
The invention provides a pressure control air bag type clearance stepless adjusting executing mechanism and a pressure control air bag type clearance stepless adjusting executing method which have the advantages of simple structure, convenience in adjustment and no need of adopting a piston driving system with a complex structure, and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pressure-controlled air-bag type clearance stepless adjustment actuator, comprising:
a housing;
the air bag assembly is arranged in the shell, and a clearance volume cavity is formed between the inner cavity of the shell and the outer surface of the air bag assembly;
and the gas control system is used for controlling the pressure of the pre-filling gas in the air bag assembly and adjusting the air bag volume by changing the pressure of the pre-filling gas.
Preferably, the gas control system comprises:
a main pipeline communicated with the inside of the air bag assembly, wherein an air bag cut-off valve and a pressure sensor are arranged on the main pipeline;
the air-release pipeline is provided with an air release valve and an air release check valve which are respectively arranged at the upstream and downstream positions in the air flow direction.
Preferably, the main pipeline is further provided with a flow limiting valve, the air charging pipeline is further provided with a first pressure reducing valve, and the air discharging pipeline is further provided with a second pressure reducing valve.
Preferably, the housing comprises:
a cylinder;
the porous baffle plates and the sealing heads are respectively arranged at the two ends of the cylinder body, the porous baffle plates, the cylinder body and the sealing heads are assembled to form a shell inner cavity, and one end of the cylinder body provided with the porous baffle plates is communicated with the compressor cylinder. The use of a porous baffle limits the maximum volume of the bladder while allowing passage of the compressed medium within the cylinder.
Preferably, the cylinder body is provided with a mounting flange for being connected with a compressor cylinder; and the sealing head is provided with an air bag component mounting hole for mounting an air bag component.
Preferably, the air bag assembly includes an air bag and an air bag nozzle, the air bag nozzle being connected to an air bag assembly mounting hole in the head by a sealing member and a locking member.
Preferably, the housing is connected to a cooling unit.
Preferably, the cooling unit comprises a jacket and/or fins arranged on the cylinder and/or the sealing head, and a cooling water inlet and a cooling water outlet are arranged on the jacket.
The invention also provides a stepless adjusting method for the pressure control air bag type clearance, which comprises the following steps: an air bag is arranged in an inner cavity of an actuating mechanism shell communicated with a compressor cylinder, the air bag volume changes along with the pressure of the inflated air, and the air bag volume is adjusted by adjusting the pressure of the pre-inflated air in the air bag, so that the size of the clearance volume outside the air bag is changed.
Preferably, the air bag is filled with working medium or nitrogen or argon in a compressor cylinder.
The working principle of the pressure control air bag type clearance stepless regulation actuating mechanism is as follows:
in the working process of the reciprocating compressor, the pressure of medium in the cylinder is equal to the inlet pressure p s And exhaust pressure p d The pressure of the pre-inflating medium in the air bag changes along with the pressure change of the medium in the air cylinder, the pressure change speed is very fast and can reach hundreds times per minute, and the pressure change can be regarded as an adiabatic process.
Let the initial pressure of the pre-inflatable medium in the air bag be p 0 An initial volume of V 0 . In the working process, the minimum working pressure of the pre-inflatable medium in the air bag is p 1 The maximum working pressure of the pre-inflatable medium in the air bag is p 2 Thermal insulationA process index of n and an instantaneous pressure of the pre-inflatable medium in the balloon of p (p 1 ≤p≤p 2 ) The corresponding instantaneous working volume of the air bag is V, the pre-inflatable medium compression factor is Z, and then pV=mZRT and pV are obtained n ＝p 0 V 0 n 。
The airbag is filled with a pre-inflating medium with certain pressure, and the pressure in the compressor cylinder is equal to the inlet pressure p along with the movement of the compressor piston s And exhaust pressure p d The air bag volume is V 1 And V 2 And changes between.
If p 0 ≤p 1 ，
If p 1 ≤p 0 ≤p 2 ，ΔV＝V 0 [1-(p 0 /p 2 )] 1/n ；
If p 0 ≥p 2 ，ΔV＝0。
It can be seen that at p 0 ≤p 2 Within the range, control p 0 Can change the effective volume change delta V of the air bag and control the volume V of the air bag when the compressor is exhausted 2 Thereby adjusting the discharge air quantity of the compressor. When p is 0 ＝p 1 The effective volume of the air bag changes maximally, deltaV max ＝V 0 [1-(p 1 /p 2 ) 1/n ]。
According to the related parameters of the compressor operation condition, the flow regulation range and the like, the proper initial volume V of the air bag can be determined 0 Control of balloon pre-charge medium pressure p by gas control system 0 The compressor discharge air can be steplessly adjusted within a certain range. In the on-line regulation, the pressure of the pre-inflatable medium in the air bag is controlled to be p s ≤p 0 ≤p d To meet the compressor discharge demand. At p s ≤p 0 ≤p d In between, the compressor displacement is greater as the precharge pressure is greater, when p 0 ＝p s The compressor displacement is minimized when p 0 ＝p d The compressor displacement is maximized.
The invention adopts the structure and has the following advantages:
the invention does not adopt a piston structure, but is provided with an air bag in the shell, and a gas medium with certain pressure is pre-filled in the air bag, the inner surface of the shell of the actuating mechanism and the outer surface of the air bag form a clearance volume cavity, and the volume of the cavity is changed along with the factors such as the medium pressure of a compressor cylinder, the medium pressure of the pre-inflatable body of the air bag, the volume of the air bag, the working temperature and the like. The pressure of the medium of the airbag pre-inflating body is regulated by utilizing the gas control system without changing other factors, so that the stepless regulation of the clearance volume can be realized within a certain range, and the displacement of the compressor is regulated without adopting a piston driving system with a complex structure.
In addition, the jacket is arranged on the actuating mechanism shell, and the circulating cooling water is used for cooling the actuating mechanism, so that the average temperature of the air bag can be reduced, and the isothermal efficiency of the compressor can be improved.
The whole set of actuating mechanism has simple structure, convenient adjustment, high response speed, safety and reliability.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of the housing in embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the structure of an airbag module in embodiment 1 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of the structure of the housing and the cooling unit in embodiment 2 of the present invention;
FIG. 6 is a schematic diagram of a gas control system according to embodiment 3 of the present invention;
fig. 7 is a schematic diagram of a gas control system in embodiment 4 of the present invention.
In the figure, 1, a gas control system; 2. a housing; 3. an airbag module; 4. a clearance volume chamber; 1-1, an inflation valve; 1-2, a first pressure reducing valve; 1-3, an inflatable one-way valve; 1-4, a pressure sensor; 1-5, a flow limiting valve; 1-6, an air bag cut-off valve; 1-7, an air release valve; 1-8, a second pressure reducing valve; 1-9, a gas leakage one-way valve; 2-1, a porous baffle; 2-2, a shell inner cavity; 2-3, a cylinder; 2-4, mounting flanges; 2-5, end socket; 2-6, an air bag module mounting hole; 3-1, an air bag; 3-2, an air sac mouth; 3-3, a sealing element; 3-4, locking elements; 5-1, a cooling water inlet; 5-2, a cooling water outlet; 5-3, jacket.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
Example 1:
as shown in fig. 1-3, a pressure control air bag type clearance stepless adjustment actuator comprises:
a housing 2;
the air bag assembly 3 is arranged in the shell 2, and a clearance volume cavity 4 is formed between the shell inner cavity 2-2 of the shell 2 and the outer surface of the air bag assembly 3; because the volume of the inner cavity 2-2 of the shell is a fixed value, the clearance volume can be changed by changing the volume of the air bag; the air bag component 3 is inflated, the volume changes along with the inflation pressure, and the maximum volume is limited by the shell;
the bladder is generally formed by vulcanizing a rubber and a fiber-reinforced layer, and has high compressive strength, elasticity and air tightness.
The gas control system 1 is used for controlling the pressure of the pre-charging gas in the air bag module 3, realizing the on-line charging and discharging of the air bag 3, and adjusting the air bag volume by changing the pressure of the pre-charging gas;
the airbag module 3 is filled with a pre-charge medium of a certain pressure, and the pressure in the compressor cylinder is equal to the inlet pressure p along with the movement of the compressor piston s And exhaust pressure p d The air bag volume is V 1 And V 2 And changes between. The pressure of the pre-inflating medium is regulated by the gas control system 1, and the air bag volume is changed, so that the clearance volume of the compressor is steplessly regulated.
The housing 2 includes:
2-3 parts of a cylinder;
the porous baffle plates 2-1 and the sealing heads 2-5 are respectively arranged at the two ends of the cylinder body 2-3, the porous baffle plates 2-1, the cylinder body 2-3 and the sealing heads 2-5 are assembled to form a shell inner cavity 2-2, one end of the cylinder body 2-3 provided with the porous baffle plates 2-1 is communicated with a compressor cylinder, the maximum volume of an air bag is limited by the porous baffle plates 2-1, and compressed media in the cylinder are allowed to pass through.
The cylinder body 2-3 is provided with a mounting flange 2-4 for being connected with a compressor cylinder; the sealing head 2-5 is provided with an air bag component mounting hole 2-6 for mounting the air bag component 3.
The air bag component 3 comprises an air bag 3-1 and an air bag nozzle 3-2, wherein the air bag nozzle 3-2 is connected with an air bag component mounting hole 2-6 on the sealing head 2-5 through a sealing element 3-3 and a locking element 3-4.
Specifically, the air bag 3-1 is usually fixed to the housing in a threaded connection manner, the sealing element 3-3 may be an O-ring or a sealing gasket, and the locking element 3-4 includes a rubber ring, a supporting ring, a retainer ring, a compression ring, a locking nut, and the like.
Example 2:
as shown in fig. 4 to 5, on the basis of embodiment 1, the housing 2 of this embodiment may be connected to a cooling unit as needed to dissipate heat. The cooling unit comprises a jacket 5-3 and/or fins arranged on the cylinder body 2-3 and/or the seal head 2-5, and a cooling water inlet 5-1 and a cooling water outlet 5-2 are arranged on the jacket 5-3. The circulating cooling water enters from the cooling water inlet 5-1 and flows out from the cooling water outlet 5-2, and the flow of the cooling water is controlled to cool the actuating mechanism shell, so that the average temperature of the air bag can be reduced, and the isothermal efficiency of the compressor is improved.
Example 3:
as shown in fig. 6, on the basis of embodiment 1, the gas control system of this embodiment includes:
a main pipeline communicated with the inside of the air bag assembly 3, wherein an air bag cut-off valve 1-6 and a pressure sensor 1-4 are arranged on the main pipeline;
the air-leakage device comprises an air charging pipeline and an air discharging pipeline which are respectively communicated with a main pipeline, wherein an air charging valve 1-1 and an air charging one-way valve 1-3 are arranged on the air charging pipeline, the air charging valve 1-1 and the air charging one-way valve 1-3 are respectively arranged at the upstream and downstream positions in the air flow direction, an air discharging valve 1-7 and an air discharging one-way valve 1-9 are arranged on the air discharging pipeline, and the air discharging valve 1-7 and the air discharging one-way valve 1-9 are respectively arranged at the upstream and downstream positions in the air flow direction.
When the air bag 3 needs to be inflated, the pre-inflatable medium is inflated into the air bag 3-1 through the inflation valve 1-1, the inflation one-way valve 1-3 and the air bag cut-off valve 1-6, and the inflation pressure is determined according to the minimum value of the pressure sensor 1-4; when the air bag needs to be deflated, the pre-inflatable medium is discharged from the air bag 3-1 through the air bag cut-off valve 1-6, the air release valve 1-7 and the air release one-way valve 1-9, and the air release pressure is determined according to the minimum value of the pressure sensor 1-4; at other times, the charge valve 1-1 and the bleed valve 1-7 are closed.
Example 4:
as shown in fig. 7, on the basis of embodiment 3, a flow limiting valve 1-5 is further disposed on the main pipe in this embodiment, a first pressure reducing valve 1-2 is further disposed on the air charging pipe, and a second pressure reducing valve 1-8 is further disposed on the air discharging pipe. The first pressure reducing valve 1-2, the flow limiting valve 1-5 and the second pressure reducing valve 1-8 are used for ensuring that the air charging and discharging process is slow and stable.
When the air bag 3 needs to be inflated, the pre-inflatable medium is inflated into the air bag 3-1 through the inflation valve 1-1, the pressure reducing valve 1-2, the inflation one-way valve 1-3, the flow limiting valve 1-5 and the air bag cut-off valve 1-6; when the air bag needs to be deflated, the pre-inflatable medium is deflated from the air bag 3-1 through the air bag cut-off valve 1-6, the flow limiting valve 1-5, the deflation valve 1-7, the pressure reducing valve 1-8 and the deflation check valve 1-9.
The invention also provides a stepless adjusting method for the pressure control air bag type clearance, which comprises the following steps: an air bag is arranged in an inner cavity of an actuating mechanism shell communicated with a compressor cylinder, the air bag volume changes along with the pressure of the inflated air, and the air bag volume is adjusted by adjusting the pressure of the pre-inflated air in the air bag, so that the size of the clearance volume outside the air bag is changed.
The air in the air bag is working medium or nitrogen or argon in the cylinder of the compressor.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships that are shown based on the drawings, merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be non-detachably connected, or integrated, for example; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (7)
1. A pressure-controlled air-bag type clearance stepless adjustment actuator, comprising:
a housing;
the air bag assembly is arranged in the shell, and a clearance volume cavity is formed between the inner cavity of the shell and the outer surface of the air bag assembly; an air bag is arranged in an inner cavity of an actuating mechanism shell communicated with a compressor cylinder, the air bag volume changes along with the pressure of the inflated air, and the air bag volume is adjusted by adjusting the pressure of the pre-inflated air in the air bag, so that the size of the clearance volume outside the air bag is changed;
the gas control system is used for controlling the pressure of the pre-charging gas in the air bag assembly and adjusting the volume of the air bag assembly by changing the pressure of the pre-charging gas; the gas control system includes:
a main pipeline communicated with the inside of the air bag assembly, wherein an air bag cut-off valve and a pressure sensor are arranged on the main pipeline;
the air-filling pipeline is respectively communicated with the main pipeline, an air-filling valve and an air-filling one-way valve are arranged on the air-filling pipeline, the air-filling valve and the air-filling one-way valve are respectively arranged at the upstream and downstream positions in the air flow direction, and an air-discharging valve and an air-discharging one-way valve are arranged on the air-discharging pipeline and are respectively arranged at the upstream and downstream positions in the air flow direction;
the air in the air bag is a working medium in the cylinder of the compressor.
2. The pressure control air bag type clearance stepless regulation executing mechanism according to claim 1, wherein a flow limiting valve is further arranged on the main pipeline, a first pressure reducing valve is further arranged on the air charging pipeline, and a second pressure reducing valve is further arranged on the air discharging pipeline.
3. The pressure control air bladder type lash stepless adjustment actuator of claim 1, wherein said housing comprises:
a cylinder;
the porous baffle plates and the sealing heads are respectively arranged at the two ends of the cylinder body, the porous baffle plates, the cylinder body and the sealing heads are assembled to form a shell inner cavity, and one end of the cylinder body provided with the porous baffle plates is communicated with the compressor cylinder.
4. A pressure control air bag type clearance stepless adjustment actuator according to claim 3, wherein a mounting flange is arranged on the cylinder body and is used for being connected with a compressor cylinder; and the sealing head is provided with an air bag component mounting hole for mounting an air bag component.
5. The pressure controlled bladder type clearance continuously variable transmission actuator of claim 4 wherein the bladder assembly comprises a bladder and a bladder nozzle, the bladder nozzle being connected to a bladder assembly mounting hole in the head by a sealing member and a locking member.
6. A pressure controlled bladder type clearance stepless adjustment actuator according to claim 3 wherein the housing is connected to a cooling unit.
7. The pressure control air bag type clearance stepless adjustment actuator according to claim 6, wherein the cooling unit comprises a jacket and/or fins arranged on the cylinder and/or the sealing head, and a cooling water inlet and a cooling water outlet are arranged on the jacket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325438.XA CN109882395B (en) | 2019-04-22 | 2019-04-22 | Pressure control air bag type clearance stepless adjustment executing mechanism and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325438.XA CN109882395B (en) | 2019-04-22 | 2019-04-22 | Pressure control air bag type clearance stepless adjustment executing mechanism and method |
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| CN109882395B true CN109882395B (en) | 2024-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2352719Y (en) * | 1998-01-16 | 1999-12-08 | 邓培星 | Diaphragm type gas compressor |
| CN103069164A (en) * | 2010-08-17 | 2013-04-24 | 株式会社日本制钢所 | Clearance pocket for reciprocating compressor |
| CN206801838U (en) * | 2017-04-24 | 2017-12-26 | 沈阳远大压缩机自控***有限公司 | The more air bag clearance adjustment actuating mechanisms of reciprocating compressor |
| CN107605717A (en) * | 2017-11-07 | 2018-01-19 | 蚌埠高科瑞力压缩机有限公司 | A kind of external device of piston for compressor cylinder clearance adjusting means |
| CN107905980A (en) * | 2017-11-14 | 2018-04-13 | 江西风石压缩机有限公司 | A kind of air compressor piston |
| CN108061030A (en) * | 2017-12-12 | 2018-05-22 | 九江大安自控工程有限公司 | A kind of clearance amount regulating system on reciprocating compressor |
| CN108533483A (en) * | 2018-03-14 | 2018-09-14 | 顾兴坤 | A kind of power assisting device of clearance adjustment actuating mechanism |
| CN209959450U (en) * | 2019-04-22 | 2020-01-17 | 山东易阳石化节能装备有限公司 | Pressure control air bag type clearance stepless regulation actuating mechanism |
-
2019
- 2019-04-22 CN CN201910325438.XA patent/CN109882395B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2352719Y (en) * | 1998-01-16 | 1999-12-08 | 邓培星 | Diaphragm type gas compressor |
| CN103069164A (en) * | 2010-08-17 | 2013-04-24 | 株式会社日本制钢所 | Clearance pocket for reciprocating compressor |
| CN206801838U (en) * | 2017-04-24 | 2017-12-26 | 沈阳远大压缩机自控***有限公司 | The more air bag clearance adjustment actuating mechanisms of reciprocating compressor |
| CN107605717A (en) * | 2017-11-07 | 2018-01-19 | 蚌埠高科瑞力压缩机有限公司 | A kind of external device of piston for compressor cylinder clearance adjusting means |
| CN107905980A (en) * | 2017-11-14 | 2018-04-13 | 江西风石压缩机有限公司 | A kind of air compressor piston |
| CN108061030A (en) * | 2017-12-12 | 2018-05-22 | 九江大安自控工程有限公司 | A kind of clearance amount regulating system on reciprocating compressor |
| CN108533483A (en) * | 2018-03-14 | 2018-09-14 | 顾兴坤 | A kind of power assisting device of clearance adjustment actuating mechanism |
| CN209959450U (en) * | 2019-04-22 | 2020-01-17 | 山东易阳石化节能装备有限公司 | Pressure control air bag type clearance stepless regulation actuating mechanism |
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|---|---|
| CN109882395A (en) | 2019-06-14 |
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