CN101169193B - Pressure valve for combustion gas source - Google Patents
Pressure valve for combustion gas source Download PDFInfo
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- CN101169193B CN101169193B CN2006101566854A CN200610156685A CN101169193B CN 101169193 B CN101169193 B CN 101169193B CN 2006101566854 A CN2006101566854 A CN 2006101566854A CN 200610156685 A CN200610156685 A CN 200610156685A CN 101169193 B CN101169193 B CN 101169193B
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- valve
- combustion gas
- pressure
- valve body
- gas source
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- 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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- Safety Valves (AREA)
Abstract
The invention provides a pressure valve for inflamed gases. An outer cylinder (11) of a valve body (10) is an elongated barrel with a bottom. The valve top (12) comprising an inlet (13) and an outlet (14) are fixed at the opening terminal of the outer cylinder (11). An inlet pressure maintaining valve (15) connecting with the inlet (13) is disposed in the outer cylinder (11), which opens when the inlet (13) pressure exceeds a prescribed value and closes when the outlet (14) pressure is higher than the inlet (13) pressure. An inner cylinder (25) is disposed in the outer cylinder (11), and a long tortuous course is formed between the outlet (14) and the pressure maintaining valve (15). Thereby, space between the inflamed gases and the combustion train is blocked up safely and quickly when abnormal conditions such as pressure rises or descends, tempering generates, or centripetal exposure contract et al. happen.
Description
Technical field
The present invention relates to a kind of pressure valve for combustion gas source, fuel gas source pressure valve after a kind of improve is provided especially, it is set at combustion gas is guided to the guiding pipeline of firing unit from combustion gas sources such as hydrogen, when abnormal pressure produces, can block combustion gas source and firing unit safely.
Background technique
The hydrogen or the hydrocarbon system combustion gas of the gas source of spontaneous combustion in the future output in the firing unit, and the system that uses in various operations is widely used in various fields, for example also can be used as the insulation of gas welding machine, device for melting snow, vinyl resin housing and the vehicle-mounted power source in temperature control device in the breeding facility or the feedway.
In recent years, this combustion gas source is applied in the various devices, and for example the applicant has proposed a kind of device that utilizes new electrolysis to produce combustion gas in the spy is willing to 2006-187245 number application.
But in this device, the problem of Chu Xianing is when producing big pressure oscillation the guiding pipeline from combustion gas source to firing unit, how to block combustion gas source and firing unit repeatedly.
This pressure oscillation is in for example utilizing the combustion gas generation device of above-mentioned electrolysis, and the pressure that produces gas sharply increases, thereby the effect of firing unit is extremely unstable.
When hydrogen supply, certain position that appears at system produces the so-called entad quick-fried phenomenon that contracts on the contrary, thus the situation that local compression sharply descends.Under this occasion, do not involve whole system for described entad quick-fried contracting, must block pipeline.For example in firing unit, take place repeatedly under the occasion of tempering phenomenon, the danger that exists the flare of firing unit to arrive at combustion gas source by pipeline in the prior art, does not have to prevent reliably the device of this tempering.
In the prior art, a plurality of relevant therewith pressure valve or the scheme of pressure relief valve have been proposed.
For example in patent documentation 1, disclosed the pressure valve in a kind of pressure piping that is assembled in igniting internal combustion engine self.
Patent documentation 1: special table 2006-507446 communique
Summary of the invention
But in existing pressure valve, main consideration is discharged into the outside because of variation in pressure makes high pressure, for example do not consider when producing above-mentioned entad quick-fried contract etc., pressure valve to be carried out pressure compensation effectively, for example promptly pressure is directed to the problem in the path from the outside.
In view of the above problems, the present invention is proposed, the object of the present invention is to provide a kind of pressure valve for combustion gas source, it comprises valve body, go into the side pressure maintaining valve, inner core, this valve body has reception from the introducing port of the combustion gas of combustion gas source supply and the delivery outlet that described combustion gas are exported, this is gone into the side pressure maintaining valve and links to each other with described introducing port, when surpassing specified value, opens the input side pressure of combustion gas, described inner core links to each other with this outlet side of going into the side pressure maintaining valve, extend coaxially with valve body, and going into to form the circuitous path of turning back between side pressure maintaining valve and the delivery outlet.
Through improved fuel gas source pressure valve, can block the phenomenons such as tempering in the combustion gas path by of the present invention effectively.
Description of drawings
Fig. 1 is the sectional view of expression gaseous combustion of the present invention source with the best first embodiment of valve body;
Fig. 2 is the sectional view of expression second embodiment of the invention;
Fig. 3 is the sectional view of the concrete structure of safety valve in the presentation graphs 2;
Fig. 4 is the sectional view of the concrete structure of recuperation valve 32 in the presentation graphs 2;
Fig. 5 is the sectional view of the concrete structure of recuperation valve 33 in the presentation graphs 2.
Embodiment
Below, with reference to the accompanying drawings the preferred embodiments of the present invention are described.
In Fig. 1, represented the best first embodiment of gaseous combustion of the present invention source with valve body.Valve body 10 inserts and is connected in the path of navigation that connects between combustion gas source (not shown) and the firing unit.Valve body 10 among the present invention comprises elongated cylindric urceolus 11, and these urceolus 11 1 ends are by bottom 11a sealing, and the other end is the open end with screw section 11b.Opened upper end end at this urceolus 11 is closed by thread engagement valve top 12.Though be not shown specifically among the figure, surface of contact is polished and crimping maybe is arranged on the seal ring that is fit to etc. between urceolus 11 and the valve top 12, realize the sealing between urceolus 11 and the valve top 12.
In the present embodiment, be provided with in urceolus 11 into side pressure maintaining valve 15, this pressure holding valve 15 links to each other with introducing port 13, combustion gas go into side pressure when surpassing regulation numerical value, can carry out open operation.
Specifically, go into side pressure maintaining valve 15 and comprise valve cylinder 16 and bibcock 17, open and close valve 18 is inserted into the inside of valve cylinder 16 with can move freely along above-below direction among the figure.The upper end thread engagement of bibcock 17 and valve cylinder 16, bibcock 17 self screw thread is fixed on the above-mentioned valve top 12.Between bibcock 17 and the valve top 12 clamping O type ring 19, keep gas seal.The central part of bibcock 17 is provided with leads mouthfuls 20, this lead mouthfuls 20 with combustion gas from introducing port 13 towards pressure holding valve 15 channeling conducts.
Stop that bolt 21 is threadably engaged on the lower end of valve cylinder 16 in Fig. 1, the pressure-adjusting springs 22 in the insertion valve cylinder 16 are positioned at open and close valve 18 with compressive state and stop between the bolt 21.Thereby, by the pressure of pressure-adjusting spring 22, with open and close valve 18 pushing below bibcock 17 towards the top.By this pushing face is polished, bibcock 18 carries out closing operation.Self-evident, this polishing adds can be provided with common O shape ring etc. in the Ministry of worker.Open and close valve 18 is provided with the path 23 that runs through its central part, to being communicated with up and down of open and close valve 18.Equally, stop on the bolt 21 that above-mentioned heart portion also is provided with guide passage 24 therein, stop that bolt 21 is communicated with the interior outer end of pressure holding valve 15.
As above constitute going into the side pressure maintaining valve, under the state in combustion gas do not supply to introducing port 13, by the pushing force of pressure-adjusting spring 22,18 pairs of bibcocks of open and close valve 17 carry out closing operation.On the other hand, if combustion gas are supplied in the introducing port 13, in case the burning air pressure of this moment surpasses regulation numerical value, then by this pressure, pushing open and close valve 18 in below can be opened into side pressure maintaining valve 15 in figure.Thereby, utilize this to go into side pressure maintaining valve 15, before the pressure of combustion gas source reaches regulation numerical value, combustion gas are not supplied to the firing unit side from delivery outlet 14, pressure valve 10 can be remained on closed condition.
And, even with combustion gas with the pressure feed that the surpasses regulation occasion in the introducing port 13 under, by producing tempering etc., going into side pressure maintaining valve 15 outlet sides from the firing unit side direction when imposing severe pressure, to the last direction pushing open and close valve 18 of figure, the operation that can implement to make the pressure holding valve 15 that connects airtight with bibcock 17 to close.Thereby, when back-pressures such as generation tempering, can block combustion gas source and firing unit reliably.
And feature of the present invention is to be provided with the inner core 25 that links to each other with the outlet side of above-mentioned pressure holding valve 15, and this inner core 25 extends coaxially with valve body, is going into to form the loop of turning back between side pressure maintaining valve 15 and the delivery outlet 14.Described inner core 25 is a cylindrical shape, and its diameter is littler than the diameter of urceolus 11.Thereby halve in the inside by 25 pairs of urceolus 11 of inner core, the gas lead path is divided into from the path of below towards figure, inside of inner core 25, and pass through between inner core 25 and the urceolus 11 and the path above in figure, by this road of turning back, can increase significantly from going into the path-length of side pressure maintaining valve 15 to delivery outlet 14.In this embodiment, inner core 25 is fixed on valve cylinder 16 bottoms of pressure holding valve 15 by screw thread.
As mentioned above, according to first embodiment of the invention, introducing port 13 sides in pressure valve, combustion gas are subjected to the pressure control effect into side pressure maintaining valve 15, when authorized pressure is following, cuts off gas and supply with, and when the increased pressure of delivery outlet 14 sides, the side pressure maintaining valve 15 of going into of introducing port 13 sides carries out closing operation at once, can prevent reliably that tempering etc. from extending burning to combustion gas source, and prevent that the high pressure of outlet side from feeding through to combustion gas source.
And, according to present embodiment, by the inner core 25 that is arranged in the urceolus 11, between pressure holding valve 15 and delivery outlet 14, form the long loop of turning back, thereby when producing tempering, set delivery outlet 14 to the path of introducing port 13 very long, postpone the arrival time of tempering, during it, can carry out the desirable blocking-up operations such as operation of closing pressure maintaining valve 15 reliably.
Fig. 2 has represented second embodiment of gaseous combustion of the present invention source with valve body, uses identical reference character to represent the parts identical with first embodiment, and omits explanation.
Second embodiment's feature is that first embodiment's pressure valve is provided with the safety valve that high pressure is lost to outside ease, but also is provided with the recuperation valve that obtains external pressure when becoming low pressure in inside from the outside.Just near the introducing port 13 on valve top 12, be provided with safety valve 31, when combustion gas become high pressure, this high pressure is discharged into the atmosphere and escape mistake.
And produce because of quick-fried contracting during the rapid low pressure that causes entad at the combustion gas source, be provided with the recuperation valve 32 arranged side by side with above-mentioned safety valve 31, when above-mentioned ultra-low pressure, atmosphere is promptly supplied in the introducing port 13 on valve top 12 decline that can compensatory pressure.And same, near the delivery outlet 14 on valve top 12, be provided with second recuperation valve 33, produce because of quick-fried contracting during the rapid low pressure that causes entad at the firing unit source, can promptly import the air that this low pressure is compensated from atmosphere.
Hereinafter will use Fig. 3, Fig. 4, Fig. 5 that each valve 31,32,33 is elaborated.
Fig. 3 is shown specifically safety valve 31, by the screw section 41 that is arranged on valve body 40 belows, safety valve 31 is securely fixed on the valve top 12 of valve body 10.Bibcock 42 is threadably engaged on the top of valve body 40, valve shaft 43 can be led by the central authorities of this bibcock 42 along the vertical direction with being free to slide.Valve seat 44 is fixed on the lower end of this valve shaft 43, can opens the path 40a that is arranged on the valve body 40.On valve body 40, be provided with a plurality of open passageway 40b in its side, when valve seat 44 opens wide, above-mentioned path 40a is communicated with atmosphere.
As shown in the figure, be provided with pressure spring 45 between bibcock 42 and the valve seat 44,, can adjust the working pressure of valve seat 44 arbitrarily by adjusting the height of above-mentioned bibcock 42.
The safety valve 31 of present embodiment has said structure, when the pressure of the combustion gas of the introducing port 13 that is directed into valve body 10 raises and surpasses regulation numerical value, the valve seat 44 of Fig. 3 is resisting the elastic force of pressure spring 45 and is opening, and above-mentioned high pressure is promptly discharged into the atmosphere.Thereby the high pressure that can promptly dissolve combustion gas is unusual.
Fig. 4 represents the detailed structure of recuperation valve 32 shown in Figure 2.
This recuperation valve 32 is opposite with above-mentioned safety valve 31, from the outside air is imported to the operation in the introducing port when being implemented in introducing port 13 and becoming low pressure, thus valve seat towards opposite with above-mentioned safety valve 31.Identical with above-mentioned safety valve 31 is that recuperation valve 32 has the valve body 51 that can connect airtight fixing retaining thread 50 with the valve top 12 of valve body 10.In this recuperation valve 32, valve body 51 and valve are pushed up 12 contact segments implement polishing, keep tightness, but also can as required O type ring etc. be set.Bibcock 52 can be regulated the ground screw thread along short transverse and be combined on the top of valve body 51.Flanged shaft 53 can lead by this bibcock 52 along the vertical direction with being free to slide.Flanged shaft 53 has flange 54 in the middle.This flange 54 presses against ring-type backing plate 55 on the upper end open of path 51a of valve body 51, seals this opening.For the power that obtains ring-type backing plate 55 is pushed, pressure spring 56 was inserted between above-mentioned flange 54 and bibcock 52 following.As shown in the figure, on flange 54 and ring-type backing plate 55, be respectively arranged with a plurality of opening 54a, 55a,, be provided with valve seat 57 in order to seal these openings.Pressure spring 59 is arranged on above-mentioned valve seat 57 and is arranged between the limiter 58 on the lower end of above-mentioned flanged shaft 53.The axial position of this limiter 58 on flanged shaft 53 can be adjusted, be assembled in recuperation valve 32 on the valve body 10 before, the axial position of limiter 58 is adjusted, arbitrarily the operating pressure of setting compensation valve 32.
Recuperation valve in the present embodiment has said structure, when introducing port 13 sides of valve body become low pressure because of combustion gas source entad quick-fried contracts etc., valve seat 57 is resisting the pushing force of pressure spring 59 and is opening, and outside air is input to introducing port 13 sides, can promptly compensate low pressure.Fig. 5 represents to be arranged on the recuperation valve 33 of delivery outlet 14 sides of valve body 10, and valve body 60 screw threads are fixed on the lower end on valve top 12, keep the tightness on valve bodies 60 and valve top 12 by O type ring 61.Bibcock 62 is screwed on the valve body 60, and between is provided with ring-type backing plate 63, to keep tightness.
As mentioned above, according to the present invention, can block effectively between combustion gas source and the firing unit, the infringement when unusual is reduced to inferior limit.Particularly correspondence has produced tempering etc. in the firing unit side, with this tempering by going into path before the side pressure maintaining valve as the circuitous path of turning back, make a kind of mazy type passage shape, by this mazy type path the time, can expect that this tempering extinguishes, and, time utilized by this detour road, the closing pressure maintaining valve can prevent tempering intrusion combustion gas source reliably.
Claims (5)
1. pressure valve for combustion gas source, it is characterized in that comprising valve body, go into the side pressure maintaining valve, inner core, this valve body has reception from the introducing port of the combustion gas of combustion gas source supply and the delivery outlet that described combustion gas are exported, this is gone into the side pressure maintaining valve and links to each other with described introducing port, when surpassing specified value, opens the input side pressure of combustion gas, described inner core links to each other with this outlet side of going into the side pressure maintaining valve, extend coaxially with valve body, and going between side pressure maintaining valve and the delivery outlet to form the circuitous path of turning back by inner core, with remarkable increase from going into the path-length of side pressure maintaining valve to delivery outlet, thereby when producing tempering, postpone the arrival time of tempering.
2. pressure valve for combustion gas source according to claim 1, it is characterized in that: near the introducing port of valve body, be provided with safety valve, when the input side pressure of combustion gas surpassed specified value, described safety valve was opened, and the introducing port of valve body and atmosphere are communicated.
3. pressure valve for combustion gas source according to claim 1 and 2, it is characterized in that: near the introducing port of valve body, be provided with recuperation valve, when the input side pressure of combustion gas was lower than specified value, this recuperation valve was opened, and outside air is directed in the introducing port of valve body.
4. pressure valve for combustion gas source according to claim 1 and 2, it is characterized in that: near the delivery outlet of valve body, be provided with recuperation valve, when the outlet side pressure of combustion gas was lower than specified value, this recuperation valve was opened, and outside air is directed in the delivery outlet of valve body.
5. pressure valve for combustion gas source according to claim 3, it is characterized in that: near the delivery outlet of valve body, be provided with recuperation valve, when the outlet side pressure of combustion gas was lower than specified value, this recuperation valve was opened, and outside air is directed in the delivery outlet of valve body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-292830 | 2006-10-27 | ||
| JP2006292830 | 2006-10-27 | ||
| JP2006292830A JP2008106729A (en) | 2006-10-27 | 2006-10-27 | Pressure valve for combustion gas source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101169193A CN101169193A (en) | 2008-04-30 |
| CN101169193B true CN101169193B (en) | 2010-08-25 |
Family
ID=39389900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101566854A Expired - Fee Related CN101169193B (en) | 2006-10-27 | 2006-12-30 | Pressure valve for combustion gas source |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008106729A (en) |
| CN (1) | CN101169193B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039372U (en) * | 1988-05-07 | 1989-06-14 | 李书简 | Multi-functional valve for combustible gas |
| CN2161792Y (en) * | 1993-04-30 | 1994-04-13 | 顾前 | Liquefied gas-fired safety valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3378284B2 (en) * | 1993-02-18 | 2003-02-17 | 株式会社田中製作所 | Backfire prevention device |
-
2006
- 2006-10-27 JP JP2006292830A patent/JP2008106729A/en active Pending
- 2006-12-30 CN CN2006101566854A patent/CN101169193B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039372U (en) * | 1988-05-07 | 1989-06-14 | 李书简 | Multi-functional valve for combustible gas |
| CN2161792Y (en) * | 1993-04-30 | 1994-04-13 | 顾前 | Liquefied gas-fired safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101169193A (en) | 2008-04-30 |
| JP2008106729A (en) | 2008-05-08 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100825 Termination date: 20121230 |