CN2460821Y - No-pressurization gas pressure reducer - Google Patents
No-pressurization gas pressure reducer Download PDFInfo
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- CN2460821Y CN2460821Y CN 01213864 CN01213864U CN2460821Y CN 2460821 Y CN2460821 Y CN 2460821Y CN 01213864 CN01213864 CN 01213864 CN 01213864 U CN01213864 U CN 01213864U CN 2460821 Y CN2460821 Y CN 2460821Y
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- valve
- pressure
- anger
- diaphragm
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Abstract
The utility model provides a non-pressurization gas pressure reducer, which is suitable for medical oxygen transfer, constant pressure automatic control, and the pressure reduction of high pressure gas fuel. The non-pressurization gas pressure reducer comprises a valve body which is provided with a high pressure gas inlet and a low pressure gas outlet. The utility model is characterized in that the valve body is provided with at least a balance type throttle valve, a pressure regulation sensitive assembly which is corresponding to the balance type throttle valve and is provided with a pressure regulation sensitive diaphragm and a pressure regulation spring; a low pressure chamber is arranged between the pressure regulation sensitive diaphragm and the balance type throttle valve. The output of pressure reduction gas is stable, safe and reliable.
Description
The utility model relates to a kind of decompressor, particularly be a kind ofly to be applicable to that medical treatment oxygen therapy, constant voltage are controlled automatically, the non pressurized gas pressure reducer of the decompression of pressurized fuel gas.
At present, domestic and international widely used oxygen reduces pressure and welds, cuts, medical treatment oxygen therapy is reduced pressure and pressurized fuel gas is the automobile of the energy, generally adopts the multistage mechanical type decompression technology that the single-stage series connection is reduced pressure or secondary is above.Known vacuum decompression modulating valve belongs to three grades of decompressions, and complex structure, increase bulky, that manufacture cost is high, decompression output pressure and amount are pressed with storage reduce, and presses with storage to reduce and increase, and causes usability to worsen, and rate of fault is too high.
In view of above reason, the purpose of this utility model is can solve medical treatment oxygen therapy now, constant voltage and control delivery pressure and the amount that reality such as pressurized fuel gas decompression exists in using automatically and all produce disadvantageous " pressure subtracts synergy and answers " technical problem in order to provide a kind of, make depressed gas output stable, safety, reliably, non pressurized gas pressure reducer applied widely.
The purpose of this utility model is achieved like this:
The utility model comprises the valve body that contains high pressure admission mouth and low pressure gas outlet, it is characterized in that having in the valve body at least one balanced type throttle valve, the pressure regulation sensing assembly that contain pressure regulation sensitive diaphragm and pressure adjusting spring corresponding with the balanced type throttle valve has low-pressure cavity between pressure regulation sensitive diaphragm and balanced type throttle valve.
The valve base that is contained in the valve port of giving vent to anger containing on the valve pocket is arranged in the above-mentioned balanced type throttle valve, the Sealing that contains through hole is arranged in the bottom of valve pocket, the lower valve rod that is contained in the spool in the valve pocket stretches in the Sealing through hole and can slide up and down and upper valve rod passes the valve port of giving vent to anger stretches in the low-pressure cavity, close spring and be contained on the lower valve rod and be arranged in the hyperbaric chamber that communicates with the high pressure admission mouth, the cross-section area of the valve port of giving vent to anger on lower valve rod cross-section area and the valve base equates.
Have on the above-mentioned valve body two ends respectively with Sealing on through hole and the leakage that communicates of low-pressure cavity drive and calm the anger safety.
The balance diaphragm spacer that is contained in the valve pocket is arranged in the above-mentioned balanced type throttle valve, the balance diaphragm that contains blind hole that is arranged in balance diaphragm interlayer is every core, every the core upper and lower end large size balance diaphragm is arranged at the balance diaphragm, small size balance diaphragm, valve pocket is by big, small size balance diaphragm is divided into the large size high pressure counter balance pocket that communicates with the high pressure admission mouth respectively, small size high pressure counter balance pocket, throttling valve core top passes that the valve port of giving vent to anger on the valve seat stretches into low-pressure cavity and the bottom valve rod passes large size balance diaphragm is connected every core with the balance diaphragm, and the spring of closing that presses closer on small size balance diaphragm is housed in small size high pressure counter balance pocket.
In the above-mentioned balanced type throttle valve valve base that is contained on the valve body is arranged, the valve core case that cooperates with valve base, valve core case is divided into valve pocket with high pressure air and closes following hyperbaric chamber that taper hole communicates and the last hyperbaric chamber that communicates with following hyperbaric chamber, in the following hyperbaric chamber spring seat is arranged, close spring housing on spring seat, be contained in spool upper valve rod in the valve core case and pass and give vent to anger valve port and lower valve rod stretches out valve core case and be connected with spring seat, the difference of spool upper valve rod cross-section area and lower valve rod cross-section area is the cross-section area of valve port of giving vent to anger.
In the above-mentioned balanced type throttle valve throttle valve seat that is threaded on the valve body is arranged, be contained in throttling valve core one end in the throttling valve pocket and stretch into the throttle valve seat valve port of giving vent to anger, sealing and fixing has an end to stretch into the return spring of throttling valve core with the top of the slipper seal that is sealed and matched and spring is closed in the lower end in the throttling valve pocket.
The utility model is inserted pressurized gas, the pressure and the amount of the output levelling of can reducing pressure.Press to reduce to one regularly the utility model output levelling pressure and measure constant when the storage of high-pressure bottle.Insert high-pressure gas as the utility model, vacuum cylinder and pipe connect the gas engine intake manifold, and starting motor promptly has the fuel gas supply mixer of regulating through decompression to make engine running.
Compared with the prior art, the utlity model has following advantage:
1, simple in structure, cost is low;
2, " pressure subtract synergy should " that can solve that prior art deposits makes decompressor not produce the output supercharging and stablizes;
3, applied widely, can be widely used in that medical gas transmission, constant voltage are controlled automatically, the fields such as decompression of pressurized fuel gas, can satisfy the air feed rule of gas engine mixed gas composition with changing load, reduce rate of fault.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation that contains hole, axis mode balancing throttle valve.
Fig. 2 is Fig. 1 mesopore axis mode balancing throttle valve structural representation.
Fig. 3 is the utility model structural representation that contains the poor formula balance throttle valve in footpath.
Fig. 4 is the poor formula balance throttle valve structural representation in footpath among Fig. 3.
Fig. 5 is another structural representation of balance throttle valve.
Fig. 6 is the utility model structural representation that contains stretch compensation balanced type throttle valve.
Fig. 7 is a stretch compensation balanced type throttle valve structural representation among Fig. 6.
Embodiment 1:
Fig. 1, Fig. 2 have provided the utility model embodiment 1 figure.Valve body 56 comprises high pressure inlet port 1, low pressure gas outlet 2.In the 1st throttling valve pocket the 3, the 2nd throttling valve pocket 4 of valve body 1, be provided with two-stage hole axis mode balancing throttle valve 5,6 respectively.Low-pressure cavity 7,8 communicates with the air outlet of throttle valve 5,6 respectively.The pressure regulation sensing assembly 12,13 that contains pressure regulation sensitive diaphragm 9, pressure adjusting spring 10, pressure regulating screw 11 respectively lay respectively on the valve body with low-pressure cavity 7,8 corresponding positions on.On the 1st throttling valve pocket 4, there is the high pressure that communicates with high pressure inlet port 2 to open and close taper hole 14.The valve base 16 that contains the valve port 15 of giving vent to anger that is threaded with the throttling valve pocket is arranged respectively in the hole axis mode balancing throttle valve 5,6, the Sealing 17 that contains through hole is arranged in the bottom of throttling valve pocket, the lower valve rod 19 that is contained in the spool 18 in the valve pocket stretches in the Sealing through hole and can slide up and down and upper valve rod 20 passes the valve port of giving vent to anger stretches in the low-pressure cavity, closes spring 57 and is contained on the lower valve rod and is arranged in the hyperbaric chamber 21 that communicates with the high pressure admission mouth.Lower valve rod cross-section area S
1Cross-section area S with the valve port of giving vent to anger on the valve base
2Equate.Have on the valve body two ends respectively with Sealing on through hole and the leakage that communicates of low-pressure cavity drive and calm the anger 22.In first low-pressure cavity, lever 23 1 ends are hinged on the valve body and the other end contacts with fixed block on the one-level decompression diaphragm, and valve rod contacts with lever.During work, pressurized gas open and close by high pressure inlet port, high pressure and enter the second throttling valve pocket after taper hole enters first throttle valve pocket, decompression, and discharge from the low pressure gas outlet decompression back once more.
Referring to Fig. 2, pressurized gas enter hyperbaric chamber from suction port, because spool lower valve rod and Sealing produce sealing, the valve rod cross-section area equates with the valve port cross-section area of giving vent to anger, equal zero so spool is subjected to pressurized gas to close thrust, fixed is to close the power of closing that spring produces by spool to close entirely.If high-pressure gas pressure changes, the power of closing that acts on the spool can not change, thereby guarantees stable (perhaps can not increase) of output pressure.
Embodiment 2:
Fig. 3, Fig. 4 have provided the utility model and have implemented 2 figure.Present embodiment 2 is basic same with embodiment 1.Do not exist together is to have adopted the poor formula balance throttle valve in footpath.In the poor formula balance throttle valve in footpath the valve base 25 that is contained in the valve port 24 of giving vent to anger containing in the valve body valve pocket is arranged, the valve core case 26 that cooperates with valve base, valve core case are divided into valve pocket with high pressure and close following hyperbaric chamber 27 that taper hole communicates and the last hyperbaric chamber 28 that communicates with following hyperbaric chamber 27.In the following hyperbaric chamber spring seat 29 is arranged.Closing spring 30 is enclosed within on the spring seat.Being contained in upper valve rod 32 on the spool 31 in the valve core case passes and gives vent to anger valve port and lower valve rod 33 stretches out valve core case and is connected with spring seat.Spool upper valve rod cross-section area S
3With lower valve rod cross-section area S
4Difference be the cross-section area S of valve port of giving vent to anger
5On valve base top Sealing 34 is arranged.Leaking imperial 58 two ends of calming the anger communicates with hyperbaric chamber, low-pressure cavity respectively.
Referring to Fig. 4.Pressurized gas are closed taper hole from high pressure and are entered hyperbaric chamber, because spool upper valve rod and lower valve rod and Sealing produce sealing, and the upper valve rod cross-section area equates with the valve port cross-section area of giving vent to anger with the difference of lower valve rod cross-section area, so it is zero that spool is subjected to gas to close thrust, be to close the power of closing that spring produces by spool to close fully.If high-pressure gas pressure changes, the power of closing that acts on the spool can not change, thereby guarantees output pressure stable (or not increasing).
Fig. 5 has provided another structural representation of balance throttling valve core.The diaphragm spacer 36 that is contained in the valve body valve pocket 35 is arranged, and the balance diaphragm that contains blind hole 37 that is arranged in balance diaphragm spacer 36 is every core 38.Every core 38 upper and lower ends large size balance diaphragm 39, small size balance diaphragm 40 are arranged at the balance diaphragm.Valve pocket is divided into large size high pressure counter balance pocket 41, the small size high pressure counter balance pocket 42 that communicates with high pressure inlet port 59 respectively by large and small area balance diaphragm.Throttling valve core 43 tops pass that the valve port 44 of giving vent to anger on the valve seat 60 stretches into low-pressure cavity and bottom valve rod 45 passes large size balance diaphragm and be connected every core with the balance diaphragm.In small size high pressure counter balance pocket, be equipped with to press closer and on small size balance diaphragm, close spring 46.
Pressurized gas enter from suction port, enter respectively in the large and small area high pressure counter balance pocket through the high pressure admission mouth, and this moment, gas pressure every core, produced a relative balance thrust by large and small area balance diaphragm and balance diaphragm.Because the area difference of large and small area balance diaphragm equals the sectional area of valve port of giving vent to anger, and equates so act on the relative force of partition on core.At this moment, spool is subjected to pressurized gas to close thrust to equal zero, and closes the power of closing that spring produces by spool fully and closes.When if pressurized gas constantly reduce with gas cylinder air pressure, the power of closing that acts on the spool can not be subjected to the influence that air pressure reduces, thereby guarantees output pressure stable (or can not increase).
Embodiment 3:
Fig. 6, Fig. 7 have provided the utility model embodiment 3 figure.Present embodiment is basic same with embodiment 1, and not existing together is only to establish a valve pocket on the valve body, and being loaded in the valve pocket is stretch compensation balanced type throttle valve 47.
Referring to Fig. 7, stretch compensation balanced type throttle valve comprises the throttle valve seat 48 that is threaded on the valve body, is contained in throttling valve core 49 1 ends in the valve pocket and stretches out the throttle valve seat valve port 50 of giving vent to anger.Sealing 51 is fixed in the throttling valve pocket, has an end to stretch into the return spring 53 of throttling valve core with the top of the slipper seal 52 that is sealed and matched and spring 54 is closed in the lower end.Leaking imperial 55 two ends of calming the anger is communicated with decompression air chamber and hyperbaric chamber respectively.
Claims (6)
1, non pressurized gas pressure reducer, comprise the valve body that contains high pressure admission mouth and low pressure gas outlet, it is characterized in that having in the valve body at least one balanced type throttle valve, the pressure regulation sensing assembly that contain pressure regulation sensitive diaphragm and pressure adjusting spring corresponding with the balanced type throttle valve has low-pressure cavity between pressure regulation sensitive diaphragm and balanced type throttle valve.
2, non pressurized gas pressure reducer as claimed in claim 1, it is characterized in that having in the balanced type throttle valve valve base that is contained in the valve port of giving vent to anger containing on the valve pocket, the Sealing that contains through hole is arranged in the bottom of valve pocket, the lower valve rod that is contained in the spool in the valve pocket stretches in the Sealing through hole and can slide up and down and upper valve rod passes the valve port of giving vent to anger stretches in the low-pressure cavity, close spring and be contained on the lower valve rod and be arranged in the hyperbaric chamber that communicates with the high pressure admission mouth, the cross-section area of the valve port of giving vent to anger on lower valve rod cross-section area and the valve base equates.
3, non pressurized gas pressure reducer as claimed in claim 2, it is characterized in that having on the valve body two ends respectively with Sealing on through hole and the leakage that communicates of low-pressure cavity drive and calm the anger.
4, non pressurized gas pressure reducer as claimed in claim 1, it is characterized in that being contained in the balanced type throttle valve balance diaphragm spacer is housed in the valve pocket, the balance diaphragm that contains blind hole that is arranged in balance diaphragm spacer is every core, every the core upper and lower end large size balance diaphragm is arranged at the balance diaphragm, small size balance diaphragm, valve pocket is by big, small size balance diaphragm is divided into the large size high pressure counter balance pocket that communicates with the high pressure admission mouth respectively, small size high pressure counter balance pocket, throttling valve core top passes that the valve port of giving vent to anger on the valve seat stretches into low-pressure cavity and the bottom valve rod passes large size balance diaphragm is connected every core with the balance diaphragm, and the spring of closing that presses closer on small size balance diaphragm is housed in small size high pressure counter balance pocket.
5, non pressurized gas pressure reducer as claimed in claim 1, it is characterized in that the valve base that is contained on the valve body is arranged in the balanced type throttle valve, the valve core case that cooperates with valve base, valve core case is divided into valve pocket with high pressure air and closes following hyperbaric chamber that taper hole communicates and the last hyperbaric chamber that communicates with following hyperbaric chamber, in the following hyperbaric chamber spring seat is arranged, close spring housing on spring seat, be contained in spool upper valve rod in the valve core case and pass and give vent to anger valve port and lower valve rod stretches out valve core case and be connected with spring seat, the difference of spool upper valve rod cross-section area and lower valve rod cross-section area is the cross-section area of valve port of giving vent to anger.
6, non pressurized gas pressure reducer as claimed in claim 1, it is characterized in that the throttle valve seat that is threaded on the valve body is arranged in the balanced type throttle valve, be contained in throttling valve core one end in the throttling valve pocket and stretch into the throttle valve seat valve port of giving vent to anger, sealing and fixing has an end to stretch into the return spring of throttling valve core with the top of the slipper seal that is sealed and matched and spring is closed in the lower end in the throttling valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213864 CN2460821Y (en) | 2001-01-11 | 2001-01-11 | No-pressurization gas pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213864 CN2460821Y (en) | 2001-01-11 | 2001-01-11 | No-pressurization gas pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2460821Y true CN2460821Y (en) | 2001-11-21 |
Family
ID=33632734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213864 Expired - Fee Related CN2460821Y (en) | 2001-01-11 | 2001-01-11 | No-pressurization gas pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2460821Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086938A (en) * | 2011-01-25 | 2011-06-08 | 张家港富瑞特种装备股份有限公司 | Reducing valve |
| CN103117500A (en) * | 2013-01-28 | 2013-05-22 | 江苏益林金刚石工具有限公司 | Optical gate system of radiofrequency slab CO<2> laser device |
| CN114033880A (en) * | 2021-11-04 | 2022-02-11 | 重庆凯瑞动力科技有限公司 | High-pressure hydrogen pressure reducing valve |
-
2001
- 2001-01-11 CN CN 01213864 patent/CN2460821Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086938A (en) * | 2011-01-25 | 2011-06-08 | 张家港富瑞特种装备股份有限公司 | Reducing valve |
| CN102086938B (en) * | 2011-01-25 | 2013-04-10 | 张家港富瑞特种装备股份有限公司 | Reducing valve |
| CN103117500A (en) * | 2013-01-28 | 2013-05-22 | 江苏益林金刚石工具有限公司 | Optical gate system of radiofrequency slab CO<2> laser device |
| CN114033880A (en) * | 2021-11-04 | 2022-02-11 | 重庆凯瑞动力科技有限公司 | High-pressure hydrogen pressure reducing valve |
| CN114033880B (en) * | 2021-11-04 | 2024-02-09 | 重庆凯瑞动力科技有限公司 | High-pressure hydrogen pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |