CN101205987A - Combined pressure-regulating valve - Google Patents
Combined pressure-regulating valve Download PDFInfo
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- CN101205987A CN101205987A CNA2006101613427A CN200610161342A CN101205987A CN 101205987 A CN101205987 A CN 101205987A CN A2006101613427 A CNA2006101613427 A CN A2006101613427A CN 200610161342 A CN200610161342 A CN 200610161342A CN 101205987 A CN101205987 A CN 101205987A
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Abstract
The invention discloses a combined type pressure regulating valve which simultaneously has pressure boosting and decreasing functions with longer service life. The invention comprises a valve body, wherein an internally communicated interface, an externally communicated pressure boosting interface and an externally communicated pressure decreasing interface are arranged on the valve body, a pressure regulating bolt is arranged on an upper cover of the valve body, an upper valve plate, an upper corrugated pipe, an upper connecting piece, a pressure regulating spring and an upper pressing block are arranged inside an upper valve cavity, and the internally communicated interface is communicated with the upper valve cavity; a valve seat is fixed in the upper valve cavity, the upper valve cavity and a lower valve cavity are communicated with each other through a valve seat cavity in the valve seat, and the lower valve cavity is communicated with the externally communicated pressure boosting interface; a lower valve plate, a lower corrugated pipe, a reset spring and a lower connecting piece are mainly arranged inside the lower valve cavity, the upper end of a passage in the lower valve plate is in seal contact with the upper valve plate, the lower end of the passage is communicated with the externally communicated pressure decreasing interface, and the lower valve plate can also block off the upper valve cavity and the lower valve cavity. The combined type pressure regulating valve which is widely applicable to the pressure stabilizing system of a low temperature pressure vessel can greatly simplify pipeline structure and improve production efficiency.
Description
Technical field
The present invention relates to and have the combined pressure-regulating valve that boosts with hypotensive effect simultaneously.
Background technique
Be used on the low-temperature pressure container of liquefied gas at low temp such as accumulating liquid oxygen, liquid argon, liquid nitrogen and LNG Liquefied natural gas, for the pressure in the low-temperature pressure container is played pressure stabilization function, the common supporting voltage-stabilizing system that uses, voltage-stabilizing system comprises booster system and depressurizing system usually again, uses boost pressure regulator valve and step-down pressure regulator valve realize boosting purpose with step-down in booster system and depressurizing system again respectively.
The structure of traditional pressure regulator valve that boosts and working principle are as shown in Figure 1, in being respectively arranged with, the both sides of valve body 8 connect mouthfuls 82 and lead to the interface 83 that boosts outward, in the loam cake 81 of valve body 8, be provided with pressure adjusting spring 3, the screw press 1 that loam cake 81 tops are provided with is by the upper end of upper holder block 2 roof pressures at pressure adjusting spring 3, the lower end of pressure adjusting spring 3 contacts with lower lock block 4, diaphragm 5 is connected with lower lock block 4, be provided with flap 6 in the valve pocket of valve body 8, be provided with Returnning spring 7 between the lower end of flap 6 and the lower cover of valve body 84, the upper end of flap 6 can contact with the projection of lower lock block 4 bottoms, flap 6 is divided into inner chamber 85 and exocoel 86 with valve pocket, inner chamber 85 with in connect mouthfuls 82 and communicate, exocoel 86 communicates with the outer logical interface 83 that boosts, and diaphragm 5 is with inner chamber 85 and pressure adjusting spring 3 sealed separation.During use, in connect mouthfuls 82 and be connected with pressurized container, the outer logical interface 83 that boosts is connected with increasing apparatus, can adjust the pressure of 3 pairs of diaphragms of pressure adjusting spring, 5 formation by rotating screw press 1.When the pressure in the pressurized container was in range of normal value, the pressure of 3 pairs of diaphragms 5 of pressure adjusting spring should be less than the pressure of medium in the pressurized container and 5 formation of 7 pairs of diaphragms of Returnning spring, and at this moment, flap 6 turn-offs inner chamber 85 and exocoel 86 sealings; When the pressure in the pressurized container is lower than setting value, the pressure of 3 pairs of diaphragms 5 of pressure adjusting spring will be greater than the pressure of medium in the pressurized container and 5 formation of 7 pairs of diaphragms of Returnning spring, like this, pressure adjusting spring 3 will back down flap 6 downwards by lower lock block 4, just inner chamber 85 and exocoel 86 have been interconnected, also just pressurized container and increasing apparatus have been interconnected, just can have realized the purpose of boosting.
The structure of traditional step-down pressure regulator valve and working principle are as shown in Figure 2, in being respectively arranged with, the both sides of valve body 6 connect mouthfuls 63 and lead to step-down interface 64 outward, in the loam cake 4 of valve body 6, be provided with pressure adjusting spring 1, the screw press 5 that loam cake 4 tops are provided with is by the upper end of upper holder block 7 roof pressures at pressure adjusting spring 1, the lower end of pressure adjusting spring 1 contacts with lower lock block 8, flap 2 and diaphragm 3 all are connected with lower lock block 8, flap 2 is separated into inner chamber 62 and exocoel 61 with the valve pocket of valve body 6, inner chamber 62 with in connect mouthfuls 63 and communicate, exocoel 61 communicates with outer logical step-down interface 64, and diaphragm 3 is with inner chamber 62 and pressure adjusting spring 1 sealed separation.During use, in connect mouthfuls 63 and be connected with pressurized container, lead to step-down interface 64 outward and be connected with pressure relief device (as relief pipeline).Can adjust the pressure that 1 pair of diaphragm of pressure adjusting spring 3 forms by rotation screw press 5.When the pressure in the pressurized container is in range of normal value, the pressure that the pressure of 1 pair of diaphragm 3 of pressure adjusting spring forms diaphragm 3 greater than the medium in the pressurized container, therefore, flap 2 turn-offs inner chamber 62 and exocoel 61 sealings; When the pressure in the pressurized container during greater than setting value, at this moment, the pressure of 1 pair of diaphragm 3 of pressure adjusting spring will be less than the pressure of the medium in the pressurized container to diaphragm 3 formation, medium in the pressurized container will upwards back down diaphragm 3 and flap 2, thereby get through inner chamber 62 and exocoel 61, also just pressurized container has been connected with pressure relief device, just can have realized the purpose of pressure release.
From the above mentioned as can be known, one, owing to employed diaphragm in traditional boost pressure regulator valve and step-down pressure regulator valve generally adopts copper or stainless steel material to make, break easily in actual use or fold, influence the performance and the working life of pressure regulator valve, and because the ductile restriction of material self causes the opening travel of valve all little.Two, owing in voltage-stabilizing system, need to dispose simultaneously boost pressure regulator valve and step-down pressure regulator valve, therefore will cause pipeline very complicated, be unfavorable for producing and debugging.
Summary of the invention
The technical problem that the present invention will solve is: a kind of combined pressure-regulating valve that boosts with buck functionality, longer service life that has concurrently simultaneously is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: described combined pressure-regulating valve comprises: valve body, and in being respectively arranged with, the both sides of valve body connect mouth and the outer logical interface that boosts, and the loam cake of valve body is provided with regulator bolts; Be characterized in: in the uuper valve chamber of valve body, be provided with flap, on bellows, on contiguous block, pressure adjusting spring and upper holder block, regulator bolts is by the upper end of upper holder block roof pressure at pressure adjusting spring, the lower end of pressure adjusting spring contacts with last flap, last flap reaches upward, and contiguous block is connected with the two ends of last bellows respectively, and last flap, go up bellows and go up contiguous block pressure adjusting spring and uuper valve chamber sealed separation, in connect mouth and communicate with uuper valve chamber; Be provided with valve seat at the uuper valve chamber internal fixation, be provided with valve support chamber in the valve seat, uuper valve chamber and lower valve chamber communicate by valve support chamber, and lower valve chamber communicates with the outer logical interface that boosts; In lower valve chamber, be movably set with a lower Disc, be provided with the passage that outwards protrude respectively at two ends in the lower Disc, the upper end of passage can contact with last flap sealing after passing valve seat, the lower end of passage communicates with outer logical step-down interface, and the upper end of lower Disc also can contact with the lower openings sealing of valve support chamber, with shutoff uuper valve chamber and lower valve chamber; In lower valve chamber, also be provided with bellows, Returnning spring and lower connecting block down, the upper end of Returnning spring contacts with the lower end of lower Disc, the lower end of Returnning spring contacts with following connecting tube on being fixedly connected on valve body, the outer end of following connecting tube is connected with outer logical step-down interface, the two ends of following bellows are connected with lower connecting block with the lower end of lower Disc respectively, and lower Disc, following bellows and lower connecting block are with Returnning spring and lower valve chamber sealed separation.
In above-mentioned following connecting tube, also be provided with a check valve apparatus, its structure is: be provided with a round taper hole in the cavity passage in following connecting tube, the slide pad that has conical end socket is movably arranged on the guide pad, guide pad is arranged on the mounting rod, and mounting rod is fixed on down in the connecting tube.
Advantage of the present invention is: the combined pressure-regulating valve that needs only a described structure of configuration in the voltage-stabilizing system of low-temperature pressure container, just can realize simultaneously boosting and step-down---to keep pressure balanced function, this just can simplify the pipeline structure of voltage-stabilizing system greatly, reduce production costs, installation and debugging are all very convenient, have improved manufacturing efficiency.In addition, owing to adopt bellows to substitute diaphragm so that pressure fittings and valve pocket are separated mutually, and bellows has excellent withstand voltage and sealability and stable rigidity and bigger stroke range, thereby just can improve the performance index of pressure regulator valve greatly.
Description of drawings
Fig. 1 is the structural representation of the pressure regulator valve that boosts described in the background technique;
Fig. 2 is the structural representation of the step-down pressure regulator valve described in the background technique;
Fig. 3 is the structural representation of combined pressure-regulating valve of the present invention.
Embodiment
The invention will be further described below in conjunction with above-mentioned the drawings and specific embodiments.
As shown in Figure 3, described combined pressure-regulating valve comprises: valve body 9, and in being respectively arranged with, the both sides of valve body 9 connect mouth 91 and the outer logical interface 92 that boosts, and the loam cake 10 of valve body 9 is provided with regulator bolts 1; In the uuper valve chamber 93 of valve body 9, be provided with flap 5, on bellows 4, on contiguous block 11, pressure adjusting spring 3 and upper holder block 2, regulator bolts 1 is by the upper end of upper holder block 2 roof pressures at pressure adjusting spring 3, the lower end of pressure adjusting spring 3 contacts with last flap 5, last flap 5 reaches upward, and contiguous block 11 is connected with the two ends of last bellows 4 respectively, and last flap 5, go up bellows 4 and go up contiguous block 11 pressure adjusting spring 3 and uuper valve chamber 93 sealed separation, in connect mouthfuls 91 and communicate with uuper valve chamber 93; Be provided with valve seat 8 at uuper valve chamber 93 internal fixation, be provided with valve support chamber 81 in the valve seat 8, uuper valve chamber 93 and lower valve chamber 94 communicate by valve support chamber 81, and lower valve chamber 94 communicates with the outer logical interface 92 that boosts; In lower valve chamber 94, be movably set with a lower Disc 6, be provided with the passage 61 that outwards protrude respectively at two ends in the lower Disc 6, the upper end of passage 61 can contact with last flap 5 sealings after passing valve seat 8, the lower end of passage 61 communicates with outer logical step-down interface 16, and the upper end of lower Disc 6 also can contact with the lower openings sealing of valve support chamber 81, with shutoff uuper valve chamber 93 and lower valve chamber 94; In lower valve chamber 94, also be provided with bellows 12, Returnning spring 7 and lower connecting block 13 down, the upper end of Returnning spring 7 contacts with the lower end of lower Disc 6, the lower end of Returnning spring 7 contacts with following connecting tube 14 on being fixedly connected on valve body 9, the outer end of following connecting tube 14 is connected with outer logical step-down interface 16, the two ends of following bellows 12 are connected with lower connecting block 13 with the lower end of lower Disc 6 respectively, and lower Disc 6, following bellows 12 and lower connecting block 13 are with Returnning spring 7 and lower valve chamber 94 sealed separation.
In the present embodiment, also be provided with a check valve apparatus in the connecting tube 14 down, its structure is: be provided with a round taper hole 141 in the cavity passage in following connecting tube 14, the slide pad 15 that has conical end socket is movably arranged on the guide pad 17, guide pad 17 is arranged on the mounting rod 18, and mounting rod 18 is fixed on down in the connecting tube 14.In following connecting tube 14, be provided with the check valve apparatus of said structure, can guarantee that medium can only flow to a direction.
The working principle of the combined pressure-regulating valve of said structure is: during use, will in connect mouthfuls 91 and be connected with pressurized container, the outer logical interface 92 that boosts is connected with increasing apparatus, leads to step-down interface 16 outward and is connected with pressure relief device (as relief pipeline).Can adjust 3 pairs of pressure adjusting springs by rotation regulator bolts 1 and go up the pressure that flap 5 forms.When the pressure in the pressurized container is lower than a certain range of set value and need boosts, 3 pairs of pressure of going up flap 5 formation of pressure adjusting spring this moment can be gone up the pressure that flap 5 forms greater than medium in the pressurized container and 6 pairs of valve seats, pressure adjusting spring 3 will back down valve seat 6 downwards by last flap 5, thereby uuper valve chamber 93 and lower valve chamber 94 are interconnected by valve support chamber 81, pressurized container has been connected with increasing apparatus, just can realizes the purpose of boosting.Otherwise, when the pressure in the pressurized container is higher than a certain range of set value and needs step-down, 3 pairs of pressure of going up flap 5 formation of pressure adjusting spring this moment can be less than the pressure of the medium in the pressurized container to last flap 5 formation, therefore the medium in the pressurized container will upwards back down, make the upper end of itself and passage 61 to be separated from each other with going up flap 5, like this, pressurized container just can by interiorly connect mouthfuls 91, uuper valve chamber 93, passage 61 and outer logical step-down interface 16 and be connected with pressure relief device (as relief pipeline), just can realize the purpose of step-down.
Claims (2)
1. combined pressure-regulating valve comprises: valve body (9), and connect mouthful (91) in the both sides of valve body (9) are respectively arranged with and lead to the interface (92) that boosts outward, the loam cake (10) of valve body (9) is provided with regulator bolts (1); It is characterized in that: in the uuper valve chamber (93) of valve body (9), be provided with flap (5), last bellows (4), last contiguous block (11), pressure adjusting spring (3) and upper holder block (2), regulator bolts (1) is by the upper end of upper holder block (2) roof pressure in pressure adjusting spring (3), the lower end of pressure adjusting spring (3) contacts with last flap (5), last flap (5) reaches upward, and contiguous block (11) is connected with the two ends of last bellows (4) respectively, and last flap (5), last bellows (4) and go up contiguous block (11) with pressure adjusting spring (3) and uuper valve chamber (93) sealed separation, in connect mouthful (91) and communicate with uuper valve chamber (93); Be provided with valve seat (8) at uuper valve chamber (93) internal fixation, be provided with valve support chamber (81) in the valve seat (8), uuper valve chamber (93) and lower valve chamber (94) communicate by valve support chamber (81), and lower valve chamber (94) communicates with the outer logical interface (92) that boosts; In lower valve chamber (94), be movably set with a lower Disc (6), be provided with the passage (61) that outwards protrude respectively at two ends in the lower Disc (6), the upper end of passage (61) can contact with last flap (5) sealing after passing valve seat (8), the lower end of passage (61) communicates with outer logical step-down interface (16), and the upper end of lower Disc (6) also can contact with the lower openings sealing of valve support chamber (81), with shutoff uuper valve chamber (93) and lower valve chamber (94); In lower valve chamber (94), also be provided with bellows (12) down, Returnning spring (7) and lower connecting block (13), the upper end of Returnning spring (7) contacts with the lower end of lower Disc (6), the lower end of Returnning spring (7) contacts with following connecting tube (14) on being fixedly connected on valve body (9), the outer end of following connecting tube (14) is connected with outer logical step-down interface (16), the two ends of following bellows (12) are connected with lower connecting block (13) with the lower end of lower Disc (6) respectively, and lower Disc (6), following bellows (12) and lower connecting block (13) are with Returnning spring (7) and lower valve chamber (94) sealed separation.
2. combined pressure-regulating valve as claimed in claim 1, it is characterized in that: also be provided with a check valve apparatus in the connecting tube (14) down, its structure is: be provided with a round taper hole (141) in the cavity passage in following connecting tube (14), the slide pad (15) that has conical end socket is movably arranged on the guide pad (17), guide pad (17) is arranged on the mounting rod (18), and mounting rod (18) is fixed on down in the connecting tube (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101613427A CN101205987A (en) | 2006-12-19 | 2006-12-19 | Combined pressure-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101613427A CN101205987A (en) | 2006-12-19 | 2006-12-19 | Combined pressure-regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN101205987A true CN101205987A (en) | 2008-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101613427A Pending CN101205987A (en) | 2006-12-19 | 2006-12-19 | Combined pressure-regulating valve |
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| Country | Link |
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| CN (1) | CN101205987A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776179A (en) * | 2009-01-12 | 2010-07-14 | 钟茂干 | Temperature control valve capable of being cleaned and maintained on line |
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN113357413A (en) * | 2020-03-04 | 2021-09-07 | 盾安环境技术有限公司 | Pressure regulating valve |
-
2006
- 2006-12-19 CN CNA2006101613427A patent/CN101205987A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776179A (en) * | 2009-01-12 | 2010-07-14 | 钟茂干 | Temperature control valve capable of being cleaned and maintained on line |
| CN101776179B (en) * | 2009-01-12 | 2013-04-24 | 天佰立(北京)新技术发展有限公司 | Temperature control valve capable of being cleaned and maintained on line |
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN103075552B (en) * | 2012-12-17 | 2014-09-03 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN113357413A (en) * | 2020-03-04 | 2021-09-07 | 盾安环境技术有限公司 | Pressure regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090109 Address after: Jiangsu province Zhangjiagang city yangshe morning new road No. 19 Applicant after: Zhangjiagang City Furui special equipment Limited by Share Ltd Address before: Jiangsu city of Zhangjiagang Province Zhou yangshe Bridge Applicant before: Zhangjiagang Fuirui boiler container manufacturing Co. Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHANGJIAGANG CITY,FURUI SPECIAL EQUIPMENT CO., LTD Free format text: FORMER OWNER: ZHANGJIAGANG CITY,FURUI CONTAINER BOILER MANUFACTURING CO., LTD. Effective date: 20090109 |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |