CN106014697A - Two-stage pressure reducing type natural gas pressure reducing valve - Google Patents
Two-stage pressure reducing type natural gas pressure reducing valve Download PDFInfo
- Publication number
- CN106014697A CN106014697A CN201610548667.4A CN201610548667A CN106014697A CN 106014697 A CN106014697 A CN 106014697A CN 201610548667 A CN201610548667 A CN 201610548667A CN 106014697 A CN106014697 A CN 106014697A
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- seal
- pressure reducing
- pressure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a two-stage pressure reducing type natural gas pressure reducing valve. The two-stage pressure reducing type natural gas pressure reducing valve comprises a valve body, a pressure adjusting spring, a valve spool, a sealing seat and a sealing diaphragm. An air inlet cavity is arranged at the left end of the valve body and an air outlet cavity is arranged at the right end of the valve body. A through cavity is formed in the valve body and the valve spool and the pressure adjusting spring are placed in the through cavity. The two ends of the valve spool are connected with the inner wall of the through cavity in a sealed manner separately. The pressure adjusting spring sleeves on the valve spool. A gas through hole is formed in the valve spool along the axial direction. The sealing seat is arranged between the air inlet cavity and the valve spool. The gas through hole is formed in the sealing seat and the sealing diaphragm is arranged in the sealing seat. A gap is left between the sealing diaphragm and the valve spool. The air inlet cavity is provided with a high pressure air inlet assembly. The natural gas pressure reducing valve is capable of realizing two-stage pressure reducing of natural gas.
Description
Technical field
The present invention relates to natural gas depressurization technical field, particularly relate to a kind of two-stage decompression formula natural
Gas air relief valve.
Background technology
At present, the decompressor commonly used single-stage pressure reducing mode that gas-fueled vehicles are used.This kind of subtract
Depressor is often because weather reason often results in high-pressure natural gas and in pressure-reducing chamber from high pressure converted is
During low pressure, pressure is the most up to standard, thus causes gas-fueled vehicles cisco unity malfunction.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of two-stage decompression formula natural gas pressure-reducing valve,
Gas pressure can be carried out two-stage decompression.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of two
Level decompression type natural gas pressure-reducing valve, including valve body, pressure spring, spool, seal receptacle and diaphragm seal
Sheet, the left and right of described valve body is respectively arranged at two ends with inlet plenum and chamber of giving vent to anger, described valve inner
Offering cavity, described spool and pressure spring are placed in described cavity, and the two ends of described spool are divided
Not being connected with the inner wall sealing of described cavity, described pressure spring is sheathed on described spool, described
Spool offers gas via-hole vertically, described seal receptacle be located at inlet plenum and described spool it
Between, described seal receptacle is provided with gas via-hole, and described seal membrane is located in described seal receptacle, institute
Stating and leave space between seal membrane and described spool, described inlet plenum is provided with high pressure admission group
Part, the inwall of described inlet plenum is provided with mounting groove, and described high pressure admission assembly includes activity
Slide block, air inlet spring, prism set, spheroplast, seal plug, adapter sleeve and inlet suction port, institute
State adapter sleeve be positioned at described inlet plenum and fixing with valve body screw thread be connected, described inlet suction port and
The outer end of adapter sleeve is screwed connection, and the logical of the inside and outside two ends of connection is offered in the inside of described adapter sleeve
The inner of hole and described adapter sleeve has dug chute, and described prism set is installed in described cunning slidably
In groove, what described prism overlapped is respectively arranged at two ends with slot, and described spheroplast is installed in prism set the inner
Slot in, described seal plug be installed in prism set outer end slot in, described movable slider fill
Being located in described mounting groove, described movable slider passes through air inlet spring away from the side of described spheroplast
Connect the medial wall of described mounting groove, and described movable slider is being installed described in elastic force effect lower seal
The lateral wall of groove.
Preferably, described valve body is made up of adiabator.
It is different from the situation of prior art, the invention has the beneficial effects as follows: the present invention is at inlet plenum
High pressure admission assembly is set and forms first order decompression, use spool to add pressure regulation bullet at valve inner
The combinative structure of spring forms second level decompression such that it is able to subtract gas pressure is carried out two-stage
Pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention two-stage decompression formula natural gas pressure-reducing valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described, it is clear that described embodiment is only that the part of the present invention is real
Execute example rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into this
The scope of invention protection.
See Fig. 1, be the structural representation of embodiment of the present invention two-stage decompression formula natural gas pressure-reducing valve.
The two-stage decompression formula natural gas pressure-reducing valve of the present embodiment include valve body 1, pressure spring 2, spool 3,
Seal receptacle 4 and seal membrane 5, the left and right of valve body 1 is respectively arranged at two ends with inlet plenum 11 and gives vent to anger
Chamber 12, valve body 1 inside offers cavity, spool 3 and pressure spring 2 and is placed in cavity, valve
The two ends of core 3 are connected with the inner wall sealing of cavity respectively, and pressure spring 2 is sheathed on spool 3,
Spool 3 offers gas via-hole vertically, seal receptacle 4 be located at inlet plenum 11 and spool 3 it
Between, seal receptacle 4 is provided with gas via-hole, and seal membrane 5 is located in seal receptacle 4, seal membrane
Space is left between 5 and spool 3.Inlet plenum 11 is provided with high pressure admission assembly, inlet plenum
Being provided with mounting groove on the inwall of 11, high pressure admission assembly includes movable slider 51, air inlet spring
52, prism set 53, spheroplast 54, seal plug 55, adapter sleeve 56 and inlet suction port 57,
Adapter sleeve 56 is positioned at inlet plenum 11 being screwed with valve body 1 and is connected, inlet suction port 57
Being screwed with the outer end of adapter sleeve 56 and be connected, the inside and outside two ends of connection are offered in the inside of adapter sleeve 56
Through hole and the inner of adapter sleeve 56 dug chute, prism set 53 is installed in chute slidably
In, prism set 53 be respectively arranged at two ends with slot, it is inner that spheroplast 54 is installed in prism set 53
Slot in, seal plug 55 is installed in the slot that prism overlaps 53 outer ends, movable slider 51
Being installed in mounting groove, movable slider 51 passes through air inlet spring 52 away from the side of spheroplast 54
Connect the medial wall of mounting groove, and movable slider 51 is in the outside of elastic force effect lower seal mounting groove
Wall.In the present embodiment, valve body 1 is made up of adiabator.
In actually used, after inlet suction port 57 air inlet, seal plug 55 is pressed by high-pressure gas
Power drive lip column sleeve 53 is inner mobile to adapter sleeve 56 along the chute of adapter sleeve 56 so that be positioned at
Spheroplast 54 inside prism set 53 promotes movable slider 51 to compress air inlet spring 52, and then lives
Movable slider 51 produces inlet gaps with mounting groove.When the gas pressure in inlet plenum 11 is excessive,
Air pressure is again by movable slider 51 pushed home, and then promotes prism set 53 along the cunning of adapter sleeve 56
Groove moves to adapter sleeve 56 outer end so that through hole is sealed by seal plug 55, reduces high-pressure gas
Enter flow.
Gas, after the first order reduces pressure, enters inlet plenum 11, more sealed diaphragm 5 and spool
After the space throttling that 3 are formed between the two, pressure reduces.The big I that pressure reduces is by pressure regulation bullet
Spring 2,3 liang of end cross-sectional area differences of spool are determined.Gas enters out from the gas via-hole of spool 3
Gas chamber 12, when the gas pressure entering chamber 12 of giving vent to anger increases, gas thrust to the left increases
Add, spool 3 will be promoted to be moved to the left and pressure spring 2, now spool 3 and seal membrane 5
Between spacing reduce, hence into gas pressure reduce, spool 3 two ends reach new balance,
Maintain the constant of output pressure.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention,
Every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion, or
Directly or indirectly being used in other relevant technical fields, the patent being the most in like manner included in the present invention is protected
In the range of protecting.
Claims (2)
1. a two-stage decompression formula natural gas pressure-reducing valve, it is characterised in that include valve body, pressure regulation bullet
Spring, spool, seal receptacle and seal membrane, the left and right of described valve body is respectively arranged at two ends with inlet plenum
With chamber of giving vent to anger, described valve inner offers cavity, and described spool and pressure spring are placed in described
In cavity, the two ends of described spool inner wall sealing with described cavity respectively is connected, described pressure regulation bullet
Spring is sheathed on described spool, and described spool offers gas via-hole vertically, and described seal receptacle sets
Between inlet plenum and described spool, described seal receptacle is provided with gas via-hole, described diaphragm seal
Sheet is located in described seal receptacle, leaves space between described seal membrane and described spool, described in enter
Gas chamber is provided with high pressure admission assembly, and the inwall of described inlet plenum is provided with mounting groove, institute
State high pressure admission assembly include movable slider, air inlet spring, prism set, spheroplast, seal plug,
Adapter sleeve and inlet suction port, described adapter sleeve is positioned at described inlet plenum and fixes with valve body screw thread
Connecting, described inlet suction port is screwed with the outer end of adapter sleeve and is connected, the inside of described adapter sleeve
Offer the inside and outside through hole at two ends of connection and the inner of described adapter sleeve has dug chute, described prism set
Being installed in slidably in described chute, what described prism overlapped is respectively arranged at two ends with slot, described ball
Shapewear is located in the slot that prism set is inner, and described seal plug is installed in inserting of prism set outer end
In groove, described movable slider is installed in described mounting groove, and described movable slider is away from described spherical
The side of body connects the medial wall of described mounting groove by air inlet spring, and described movable slider is at bullet
The lateral wall of mounting groove described in power effect lower seal.
Two-stage decompression formula natural gas pressure-reducing valve the most according to claim 1, it is characterised in that
Described valve body is made up of adiabator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548667.4A CN106014697A (en) | 2016-07-13 | 2016-07-13 | Two-stage pressure reducing type natural gas pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548667.4A CN106014697A (en) | 2016-07-13 | 2016-07-13 | Two-stage pressure reducing type natural gas pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014697A true CN106014697A (en) | 2016-10-12 |
Family
ID=57109516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610548667.4A Pending CN106014697A (en) | 2016-07-13 | 2016-07-13 | Two-stage pressure reducing type natural gas pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014697A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578644A (en) * | 2017-09-29 | 2019-04-05 | 北京机电工程研究所 | A kind of pressure reducing valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200411842Y1 (en) * | 2006-01-04 | 2006-03-17 | 이병남 | Structure for preheating LPG vehicle using heating element sheet |
| CN2789543Y (en) * | 2004-12-08 | 2006-06-21 | 龙桂文 | High pressure air relief valve |
| EP1792071B1 (en) * | 2004-09-21 | 2008-02-13 | Bayerische Motorenwerke Aktiengesellschaft | Heat exchanger for hydrogen-operated fuel supply systems |
| CN102052200A (en) * | 2009-10-29 | 2011-05-11 | 西安申科电子研究所 | Electronic heating control device of natural gas reducing valve for natural gas automobile |
| CN202946263U (en) * | 2012-11-14 | 2013-05-22 | 嘉兴市力讯汽车电子有限公司 | Natural gas piston decompressor |
| CN203702374U (en) * | 2014-01-20 | 2014-07-09 | 奉化市安利特机械有限公司 | Improved structure of pressure reducer of gas-fueled vehicle |
| CN105605275A (en) * | 2016-04-01 | 2016-05-25 | 成都科盛石油科技有限公司 | Natural gas pressure reduction mechanism |
-
2016
- 2016-07-13 CN CN201610548667.4A patent/CN106014697A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1792071B1 (en) * | 2004-09-21 | 2008-02-13 | Bayerische Motorenwerke Aktiengesellschaft | Heat exchanger for hydrogen-operated fuel supply systems |
| CN2789543Y (en) * | 2004-12-08 | 2006-06-21 | 龙桂文 | High pressure air relief valve |
| KR200411842Y1 (en) * | 2006-01-04 | 2006-03-17 | 이병남 | Structure for preheating LPG vehicle using heating element sheet |
| CN102052200A (en) * | 2009-10-29 | 2011-05-11 | 西安申科电子研究所 | Electronic heating control device of natural gas reducing valve for natural gas automobile |
| CN202946263U (en) * | 2012-11-14 | 2013-05-22 | 嘉兴市力讯汽车电子有限公司 | Natural gas piston decompressor |
| CN203702374U (en) * | 2014-01-20 | 2014-07-09 | 奉化市安利特机械有限公司 | Improved structure of pressure reducer of gas-fueled vehicle |
| CN105605275A (en) * | 2016-04-01 | 2016-05-25 | 成都科盛石油科技有限公司 | Natural gas pressure reduction mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578644A (en) * | 2017-09-29 | 2019-04-05 | 北京机电工程研究所 | A kind of pressure reducing valve |
| CN109578644B (en) * | 2017-09-29 | 2020-12-04 | 北京机电工程研究所 | Pressure reducing valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |