CN111518597B - Be used for multistage accuse depressor of natural gas recovery - Google Patents

Be used for multistage accuse depressor of natural gas recovery Download PDF

Info

Publication number
CN111518597B
CN111518597B CN202010370969.3A CN202010370969A CN111518597B CN 111518597 B CN111518597 B CN 111518597B CN 202010370969 A CN202010370969 A CN 202010370969A CN 111518597 B CN111518597 B CN 111518597B
Authority
CN
China
Prior art keywords
spring
rod
hole
piston cylinder
end cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010370969.3A
Other languages
Chinese (zh)
Other versions
CN111518597A (en
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yan'an Kunyuan Industry And Trade Co ltd
Original Assignee
Changsha Ninghu Machinery Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha Ninghu Machinery Equipment Co ltd filed Critical Changsha Ninghu Machinery Equipment Co ltd
Priority to CN202010370969.3A priority Critical patent/CN111518597B/en
Publication of CN111518597A publication Critical patent/CN111518597A/en
Application granted granted Critical
Publication of CN111518597B publication Critical patent/CN111518597B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10Working-up natural gas or synthetic natural gas

Abstract

The invention discloses a multi-stage pressure controller for natural gas recovery, which comprises a machine body, an adjusting mechanism and a limiting mechanism, wherein end covers are fixedly arranged at two ends of the machine body, an air inlet is fixedly arranged on the end cover at one end of the machine body, a first exhaust hole and a second exhaust hole are symmetrically and fixedly arranged at the top of the machine body, a second piston cylinder is connected inside the machine body in a sliding manner, first springs are fixedly arranged at two ends of the second piston cylinder, a concave hole is formed in one end of the second piston cylinder, a second spring is fixedly arranged in the concave hole of the second piston cylinder, a third spring is sleeved in the second spring, the diameter of the second spring is larger than that of the third spring, a first piston cylinder is connected in the concave hole of the second piston cylinder in a sliding manner, a through hole is formed in one end of the first piston cylinder, and the multi-stage pressure controller for natural gas recovery has a simple structure, The operation is convenient, the hierarchical regulation and control of atmospheric pressure to the natural gas is convenient for, and the practicality is higher.

Description

Be used for multistage accuse depressor of natural gas recovery
Technical Field
The invention relates to the technical field of natural gas recovery, in particular to a multi-stage pressure controller for natural gas recovery.
Background
Natural gas is a gaseous fossil fuel consisting primarily of methane. It is mainly found in oil fields and natural gas fields, and also in coal seams in small quantities. Natural gas is also buried in underground closed geological structures like crude oil, and some are stored at the same level as crude oil and some exist independently. For natural gas that is stored at the same level as the crude oil, it is produced along with the crude oil. The natural gas is mainly used as fuel, can be used for producing carbon black, chemicals and liquefied petroleum gas, and the propane and butane produced by the natural gas are important raw materials of modern industry. Natural gas is composed mainly of gaseous low molecular hydrocarbons mixed with non-hydrocarbon gases.
The in-process of the recovery of natural gas need be controlled the atmospheric pressure of natural gas, regulate and control the atmospheric pressure of natural gas to within certain numerical value, make things convenient for personnel to operate, and different numerical values correspond different equipment, lead to complex operation, are unfavorable for reducing duty cycle, and have increased the cost of production, for this reason, we propose one kind and be used for the multistage accuse depressor of natural gas recovery.
Disclosure of Invention
The present invention is directed to a multi-stage pressure controller for natural gas recovery, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-stage pressure controller for natural gas recovery comprises a machine body, an adjusting mechanism and a limiting mechanism, wherein end covers are fixedly mounted at two ends of the machine body, an air inlet hole is formed in the end cover at one end of the machine body, a first exhaust hole and a second exhaust hole are symmetrically and fixedly mounted at the top of the machine body, a second piston cylinder is connected to the machine body in a sliding mode, a first spring is fixedly mounted at two ends of the second piston cylinder, a concave hole is formed in one end of the second piston cylinder, a second spring is fixedly mounted in the concave hole of the second piston cylinder, a third spring is sleeved in the second spring, the diameter of the second spring is larger than that of the third spring, a first piston cylinder is connected to the second piston cylinder in the concave hole in a sliding mode, a through hole is formed in one end of the first piston cylinder, and the diameter of the through hole at one end of the first piston cylinder is larger than that of the third spring, the end cover of the end of the machine body, which is far away from the air inlet hole, is symmetrically provided with extension holes, the end cover of the end of the machine body, which is far away from the air inlet hole, is rotatably connected with an adjusting mechanism through a rotating shaft of the extension holes, and the bottom of one end of the adjusting mechanism is fixedly connected with a limiting mechanism.
Preferably, adjustment mechanism includes dead lever, sharp piece, connecting rod, locking lever, pressure disk and pulling rod, dead lever fixed mounting is in the central authorities of end cover, the dead lever is kept away from the one end fixed mounting of end cover and is had the pressure disk, just the pulling rod has been cup jointed outward to the one end of dead lever, the spout has been seted up to the one end longitudinal symmetry of dead lever, the spout of dead lever and the one end sliding connection of sharp piece, the one end sliding connection that the dead lever was kept away from to sharp piece is in one side of end cover, just fixed mounting is in one side of pulling rod about the one end of sharp piece is equal, the one end that the pulling rod was kept away from to sharp piece is rotated through the one end of pivot and connecting rod and is connected, the other end of connecting rod is rotated through the middle part of pivot and is connected with the locking lever, just the one end of locking lever is rotated through the pivot and is connected in the one end both sides of dead lever.
Preferably, stop gear includes button, first voussoir, second voussoir and return spring, button fixed mounting is in the one end of first voussoir, first voussoir sliding connection is at the low side of pulling the pole, just the mounting hole has been seted up to the low side of pulling the pole, the constant head tank has been seted up at the top of the mounting hole of pulling the pole, just sliding connection has the second voussoir in the constant head tank of pulling the pole, the one end of keeping away from the button of pulling the pole and return spring's one end fixed connection, just return spring's the other end fixed mounting is in the one end of the mounting hole of pulling the pole, first voussoir and second voussoir mutually support.
Preferably, the two ends of the extension hole on the end cover are both provided with flexible hooks, and the extension hole on the end cover is connected with a rotating disc in a sliding manner.
Preferably, one side of the top end of the pulling rod is provided with a limiting pin.
Preferably, one side of the end cover is provided with limiting holes in an up-down symmetrical mode.
Compared with the prior art, the invention has the beneficial effects that: the device is adjusted according to the required air pressure, the first piston cylinder and the second piston cylinder are matched with each other, so that gas can be discharged from the first exhaust hole or the second exhaust hole conveniently, the adjustment mechanism is convenient for adjusting and controlling the first piston cylinder and the second piston cylinder, and the first spring is arranged between the first piston cylinder and the second piston cylinder; the multistage accuse depressor simple structure, simple operation, be convenient for carry out hierarchical regulation and control to the atmospheric pressure of natural gas for the whole operation of equipment is safe, this is used for the multistage accuse depressor of natural gas recovery, the practicality is higher.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the air intake installation;
FIG. 3 is a schematic view of an adjustment mechanism;
FIG. 4 is a schematic view of a spacing mechanism;
FIG. 5 is a schematic view of the first and second piston cylinders being installed;
FIG. 6 is a schematic side view of the overall structure of the present invention;
fig. 7 is a schematic view of a rotating disc installation.
In the figure: 1. a body; 2. an adjustment mechanism; 3. a limiting mechanism; 4. an end cap; 5. an air inlet; 6. a first exhaust port; 7. a second vent hole; 8. a second piston cylinder; 9. a first spring; 10. a second spring; 11. a third spring; 12. a first piston cylinder; 13. fixing the rod; 14. a straight line block; 15. a connecting rod; 16. a stopper rod; 17. a platen; 18. pulling a rod; 19. a button; 20. a first wedge; 21. a second wedge; 22. a return spring; 23. and (6) rotating the disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a multi-stage pressure controller for natural gas recovery comprises a machine body 1, an adjusting mechanism 2 and a limiting mechanism 3, wherein end covers 4 are fixedly mounted at two ends of the machine body 1, an air inlet 5 is fixedly mounted at one end of the machine body 1, a first exhaust hole 6 and a second exhaust hole 7 are symmetrically and fixedly mounted at the top of the machine body 1, a second piston cylinder 8 is slidably connected inside the machine body 1, a first spring 9 is fixedly mounted at two ends of the second piston cylinder 8, a concave hole is formed in one end of the second piston cylinder 8, a second spring 10 is fixedly mounted in the concave hole of the second piston cylinder 8, a third spring 11 is sleeved in the second spring 10, the diameter of the second spring 10 is larger than that of the third spring 11, a first piston cylinder 12 is slidably connected in the concave hole of the second piston cylinder 8, a through hole is formed in one end of the first piston cylinder 12, and the diameter of the through hole at one end of the first piston cylinder 12 is larger than that of the third spring 11, an extension hole is symmetrically formed in the end cover 4 at one end of the machine body 1 far away from the air inlet 5, the end cover 4 at one end of the machine body 1 far away from the air inlet 5 is rotatably connected with the adjusting mechanism 2 through a rotating shaft of the extension hole, the bottom of one end of the adjusting mechanism 2 is fixedly connected with the limiting mechanism 3, the matched gas of the second piston cylinder 8 and the first piston cylinder 12 is discharged from the first exhaust hole 6 or the second exhaust hole 7, and the first spring 9, the second spring 10 and the third spring 11 are mutually matched to facilitate the discharge of the gas of the second piston cylinder 8 and the first piston cylinder 12.
The adjusting mechanism 2 comprises a fixed rod 13, a linear block 14, a connecting rod 15, a stop rod 16, a pressure plate 17 and a pulling rod 18, the fixed rod 13 is fixedly arranged at the center of the end cover 4, the end of the fixed rod 13, far away from the end cover 4, is fixedly provided with the pressure plate 17, one end of the fixed rod 13 is sleeved with the pulling rod 18, one end of the fixed rod 13 is symmetrically provided with sliding grooves up and down, the sliding grooves of the fixed rod 13 are connected with one end of the linear block 14 in a sliding manner, one end of the linear block 14, far away from the fixed rod 13, is connected to one side of the end cover 4 in a sliding manner, one end of the linear block 14 is fixedly arranged on one side of the pulling rod 18 from top to bottom, one end of the linear block 14, far away from the pulling rod 18, is rotatably connected with one end of the connecting rod 15 through a rotating shaft, the other end of the connecting rod 15 is rotatably connected with the middle of the stop rod 16 through a rotating shaft, and one end of the stop rod 16 is rotatably connected to two sides of the fixed rod 13 through a rotating shaft, the fixing rod 13 facilitates installation of the linear block 14, the connecting rod 15, the stop rod 16, the pressure plate 17 and the pulling rod 18, the linear block 14 facilitates matching of the pulling rod 18 to achieve movement of the connecting rod 15 and the stop rod 16, the pressure plate 17 facilitates limiting of the third spring 11, the connecting rod 15 and the stop rod 16 facilitate limiting of the first piston cylinder 12, stop lugs are symmetrically arranged at the upper end and the lower end of one end of the first piston cylinder 12 to facilitate matching of the stop rod 16 to fix the first piston cylinder 12, and displacement of the stop rod 16 is achieved by the connecting rod 15.
The limiting mechanism 3 comprises a button 19, a first wedge 20, a second wedge 21 and a return spring 22, the button 19 is fixedly mounted at one end of a first wedge 20, the first wedge 20 is slidably connected to the lower end of the pulling rod 18, and the lower end of the pulling rod 18 is provided with a mounting hole, the top of the mounting hole of the pulling rod 18 is provided with a positioning groove, a second wedge block 21 is connected in the positioning groove of the pulling rod 18 in a sliding manner, one end of the pulling rod 18 far away from the button 19 is fixedly connected with one end of a return spring 22, and the other end of the return spring 22 is fixedly installed at one end of the installation hole of the pulling rod 18, first voussoir 20 and second voussoir 21 cooperate each other, and first voussoir 20, second voussoir 21 cooperate each other and carry on spacingly to dead lever 13, and the constant head tank has been seted up to the one end of dead lever 13, and button 19 and return spring 22 cooperate each other to be convenient for realize the location of first voussoir 20 to dead lever 13.
The flexible clamping hooks are arranged at two ends of an extension hole in the end cover 4, the rotating disc 23 is connected in the extension hole in the end cover 4 in a sliding mode, sliding columns are symmetrically arranged on two sides of the rotating disc 23 and are matched with the flexible clamping hooks, and the rotating disc 23 is limited.
One side of the top end of the pulling rod 18 is provided with a limiting pin, so that the fixing of the adjusting mechanism 2 is convenient to realize, and the excessive movement of the adjusting mechanism is prevented.
And one side of the end cover 4 is provided with limiting holes in up-down symmetry, so that the first spring 9 can move conveniently in a matching manner.
The working principle is as follows: critical pressures a, b, c, d are set and are sequentially increased. When c < air pressure < d, and the state is a high pressure state, the first exhaust hole 6 is closed, the second exhaust hole 7 is opened, the stop rod 16 is contracted, and the limiting hole is closed. Gas enters from the gas inlet 5, presses the second piston cylinder 8 and the first piston cylinder 12 to move left (the first piston cylinder 12 is contacted with the end cover 4), when the second piston cylinder 8 is continuously pressed at the moment, the first spring 9, the second spring 10 and the third spring 11 all act (the third spring 11 is contacted with the pressure plate 17 to act), the gas can be discharged from the second exhaust hole 7 by overcoming the total elastic force of the three springs, when b < gas pressure < c, the gas is in a medium-pressure state at the moment, the first exhaust hole 6 is closed, the second exhaust hole 7 is opened, the stop rod 16 is contracted, and the limit hole is opened. Gas enters from the gas inlet 5, the second piston cylinder 8 and the first piston cylinder 12 are pressed to move leftwards (the first piston cylinder 12 is contacted with the end cover 4), when the second piston cylinder 8 is continuously pressed, the second spring 10 and the third spring 11 are both acted (the third spring 11 is contacted with the pressure plate 17), the first spring 9 is not acted (extends out from the limit hole of the end cover 4), the gas can be discharged from the second exhaust hole 7 only by overcoming the total elastic force of the two springs, when the a < the gas pressure < b, the low-pressure state is realized, the second exhaust hole 7 is closed, the first exhaust hole 6 is opened, the stop rod 16 is opened, and the limit hole is closed. Gas enters from the gas inlet hole 5, presses the second piston cylinder 8 and the first piston cylinder 12 to move leftwards (the first piston cylinder 12 is contacted with the stop rod 16 and can not move leftwards continuously), when the second piston cylinder 8 is pressed continuously, only the second spring 10 is acted (the first spring 9 is not contacted with the end cover 4, and the third spring 11 does not work after extending out of the through hole of the first piston cylinder 12), and the gas can be discharged from the first gas outlet hole 6 by overcoming the total elastic force of one spring.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a be used for multistage accuse depressor of natural gas recovery, includes organism (1), adjustment mechanism (2) and stop gear (3), its characterized in that: the equal fixed mounting in both ends of organism (1) has end cover (4), end cover (4) fixed mounting of organism (1) one end has inlet port (5), the top symmetry fixed mounting of organism (1) has first exhaust hole (6) and second exhaust hole (7), the inside sliding connection of organism (1) has second piston section of thick bamboo (8), the shrinkage pool has been seted up to the one end of second piston section of thick bamboo (8), the one end that the shrinkage pool was seted up to second piston section of thick bamboo (8) still fixed mounting has first spring (9), fixed mounting has second spring (10) in the shrinkage pool of second piston section of thick bamboo (8), and it has third spring (11) to cup joint in second spring (10), the diameter of second spring (10) is greater than third spring (11), sliding connection has first piston section of thick bamboo (12) in the shrinkage pool of second piston section of thick bamboo (8), a through hole is formed in one end of the first piston cylinder (12), the diameter of the through hole in one end of the first piston cylinder (12) is larger than that of the third spring (11), the installation position of the third spring (11) corresponds to the position of the through hole in one end of the first piston cylinder (12), an extension hole is symmetrically formed in an end cover (4) at one end, away from the air inlet hole (5), of the machine body (1), the end cover (4) at one end, away from the air inlet hole (5), of the machine body (1) is rotatably connected with an adjusting mechanism (2) through an extension hole rotating shaft, and a limiting mechanism (3) is fixedly connected to the bottom of one end of the adjusting mechanism (2);
the adjusting mechanism (2) comprises a fixed rod (13), a linear block (14), a connecting rod (15), a stop rod (16), a pressure plate (17) and a pulling rod (18), the fixed rod (13) is fixedly arranged at the center of the end cover (4), the end, far away from the end cover (4), of the fixed rod (13) is fixedly provided with the pressure plate (17), the end, close to the end cover, of the fixed rod (13) is sleeved with the pulling rod (18), the end, far away from the end cover, of the fixed rod (13) is provided with sliding grooves in an up-and-down symmetrical mode, the sliding grooves of the fixed rod (13) are in sliding connection with one end of the linear block (14), one end, far away from the end cover (4), of the linear block (14) is in sliding connection with one side of the fixed rod (13), the end, close to the end cover (4), of the linear block (14) is fixedly arranged on the pulling rod (18), one end, far away from the pulling rod (18), of the linear block (14) is in rotation connection with one end of the connecting rod (15) through a rotating shaft, the other end of the connecting rod (15) is rotatably connected with the middle part of the stop rod (16) through a rotating shaft, and the tail end of the stop rod (16) is rotatably connected with the upper side and the lower side of the fixed rod (13) through the rotating shaft;
the limiting mechanism (3) comprises a button (19), a first wedge block (20), a second wedge block (21) and a return spring (22), the button (19) is fixedly installed at one end of the second wedge block (21), the first wedge block (20) is connected to the bottom end of the pulling rod (18) in a sliding mode, a mounting hole is formed in the bottom end of the pulling rod (18), a positioning groove is formed in the top of the mounting hole of the pulling rod (18), and the second wedge block (21) is connected into the mounting hole of the pulling rod (18) in a sliding mode;
and limiting holes are symmetrically formed in one side of the end cover (4) up and down, and the mounting position of the first spring (9) corresponds to the limiting holes.
2. The multi-stage pressure controller for natural gas recovery according to claim 1, wherein: the flexible clamping hooks are arranged at two ends of an extension hole in the end cover (4), and a rotating disc (23) is connected in the extension hole in the end cover (4) in a sliding mode.
3. The multi-stage pressure controller for natural gas recovery according to claim 1, wherein: one side of the top end of the pulling rod (18) is provided with a limiting pin.
4. The multi-stage pressure controller for natural gas recovery according to claim 1, wherein: one end of the pulling rod (18) far away from the button (19) is fixedly connected with one end of the return spring (22).
5. The multi-stage pressure controller for natural gas recovery according to claim 4, wherein: the other end of the return spring (22) is fixedly arranged at one end of the mounting hole of the pulling rod (18).
6. The multi-stage pressure controller for natural gas recovery according to claim 1, wherein: the first wedge (20) and the second wedge (21) are mutually matched.
CN202010370969.3A 2020-05-06 2020-05-06 Be used for multistage accuse depressor of natural gas recovery Active CN111518597B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010370969.3A CN111518597B (en) 2020-05-06 2020-05-06 Be used for multistage accuse depressor of natural gas recovery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010370969.3A CN111518597B (en) 2020-05-06 2020-05-06 Be used for multistage accuse depressor of natural gas recovery

Publications (2)

Publication Number Publication Date
CN111518597A CN111518597A (en) 2020-08-11
CN111518597B true CN111518597B (en) 2021-10-15

Family

ID=71906624

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010370969.3A Active CN111518597B (en) 2020-05-06 2020-05-06 Be used for multistage accuse depressor of natural gas recovery

Country Status (1)

Country Link
CN (1) CN111518597B (en)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB862744A (en) * 1956-03-19 1961-03-15 Rotol Ltd Improvements in or relating to hydraulic safety valves
US4111283A (en) * 1976-12-20 1978-09-05 Clark Equipment Company Regulator valve
DE4404358C2 (en) * 1994-02-11 1998-04-09 Daimler Benz Ag Inlet pressure controlled multi-way valve
US6041762A (en) * 1996-08-16 2000-03-28 Impco Technologies, Inc. Control module for natural gas fuel supply for a vehicle
WO2004085858A1 (en) * 2003-03-24 2004-10-07 Yokohama Tlo Company,Ltd. Variable valve system of internal combustion engine and control method thereof, and hydraulic actuator
CN2779150Y (en) * 2005-03-23 2006-05-10 区聘维 Switch type hydraulic pressure adjusting device
CN2809263Y (en) * 2005-07-29 2006-08-23 自贡通达机器制造有限公司 Hydraulic piston type natural gas compressor
CN2878692Y (en) * 2006-03-07 2007-03-14 赵旭 Piston type pressure reducer
CN201050472Y (en) * 2007-04-29 2008-04-23 温州强盛石化机械有限公司 Natural gas station compressor Regulation device capable of adapting to gas inlet pressure change
US20140114248A1 (en) * 2012-10-24 2014-04-24 Nuance Designs, LLC Power pack for an autoinjector
CN203742804U (en) * 2014-01-20 2014-07-30 潍柴动力股份有限公司 Electronic control hydraulic auxiliary braking system
CN103775701A (en) * 2014-03-03 2014-05-07 北京航空航天大学 Pressure regulating valve
CN107228068B (en) * 2017-05-08 2018-11-16 北京化工大学 A kind of reciprocating compressor exhaust amount adjustment method and device
CN207454229U (en) * 2017-11-15 2018-06-05 苏州爱德空分设备有限公司 A kind of Reciprocting piston compressor classification tolerance is adjusted with pneumatic servo device
CN107654218B (en) * 2017-11-16 2019-10-25 连云港市沃鑫高新材料有限公司 A kind of casing pressure control mechanism
CN108716558A (en) * 2018-07-13 2018-10-30 四川长仪油气集输设备股份有限公司 Axial-flow type safety shut-off valve and its superpressure block control system
CN109653829B (en) * 2018-12-26 2020-10-23 王自勤 Electro-hydraulic control method and device for valve lag angle

Also Published As

Publication number Publication date
CN111518597A (en) 2020-08-11

Similar Documents

Publication Publication Date Title
CN209705719U (en) A kind of cooling methane fluid reservoir of natural gas methane
WO2009074737A3 (en) Process for liquefying a dry natural gas
CN111518597B (en) Be used for multistage accuse depressor of natural gas recovery
CN204099076U (en) Multi-stage pressure reducers is pressed in straight spray
CN111503329B (en) A multistage voltage regulator for natural gas recovery
CN202252841U (en) Skid mounted liquefied natural gas automobile gas filling device
CN213684079U (en) Piston compression type petroleum associated gas separation pressurization recovery device
CN213420625U (en) Strong pressurization system of low-temperature liquefied gas storage tank
CN209603896U (en) A kind of petroleum works polished rod Kato device
CN2934870Y (en) Natural gas heater
CN208291385U (en) A kind of saddle elevating lever
CN205173115U (en) Two -stage natural gas compression cylinder
CN213117498U (en) Telescopic regulating valve
US6499384B1 (en) Piston apparatus for gas/liquid pipeline
CN2578587Y (en) Hydraulic regulator
CN217355848U (en) Petroleum pipeline auxiliary installation device capable of adapting to multiple working conditions
CN213983019U (en) Desulfurization well head ground control integrated device
CN2620165Y (en) Pressure regulator for liquefied petroleum gas
CN210830632U (en) Pressure regulator for liquefied petroleum gas
CN219300087U (en) Natural gas pipeline fixing device
CN219375763U (en) Movable central oxygen supply device
CN220575829U (en) Command type regulator throttle valve port regulating tool
CN212986054U (en) Ultrahigh pressure gauge valve
CN220228123U (en) Pipeline installation fixed bolster
CN205472638U (en) Novel methyl alcohol schizolysis heater

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230109

Address after: 716000 No. 2-1-1402 Yuhua Community, Changqing Road, Baimi Avenue, Baota District, Yan'an City, Shaanxi Province

Patentee after: Yan'an Kunyuan Industry and Trade Co.,Ltd.

Address before: Room 218, building 3, Xinggong science and Technology Park, No. 100 Luyun Road, high tech Development Zone, Changsha City, Hunan Province

Patentee before: CHANGSHA NINGHU MACHINERY EQUIPMENT Co.,Ltd.