CN202946701U - Built-in tank bottom emergency cut-off valve in cryogenic liquid storage tank - Google Patents
Built-in tank bottom emergency cut-off valve in cryogenic liquid storage tank Download PDFInfo
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- CN202946701U CN202946701U CN 201220584933 CN201220584933U CN202946701U CN 202946701 U CN202946701 U CN 202946701U CN 201220584933 CN201220584933 CN 201220584933 CN 201220584933 U CN201220584933 U CN 201220584933U CN 202946701 U CN202946701 U CN 202946701U
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Abstract
A built-in tank bottom emergency cut-off valve in a cryogenic liquid storage tank mainly comprises a main valve part and a drive part, the main valve part is connected on the bottom of the cryogenic liquid storage tank in a welding mode through a base plate, the drive part is arranged on the top of the cryogenic liquid storage tank, the main valve part is connected with the drive part through two stainless steel ropes, namely an operating rope and an emergency rope, a valve seat is fixed on the base plate of the main valve part, a guide frame is connected on the valve seat, a big valve clack which can move in an up-down mode and is matched with the valve seat to form a big sealing pair is arranged in the guide frame, and a small valve clack which can move in an up-down mode and is matched with the big valve clack to form a small sealing pair is arranged above the big valve clack through a valve rod. Compared with the structure of an ordinary emergency cut-off valve, the built-in tank bottom emergency cut-off valve in the cryogenic liquid storage tank is smaller in executing mechanism, more reasonable and compact in structure, and better in using effect.
Description
Technical field
The utility model relates to the Emergeny Cutoff Valves at the bottom of built-in tank in a kind of cryogenic liquid tank, belong to the low temperature machinery.
Background technique
Large-scale low-temperature liquid storage vessel pipeline if there is no the emergency cut-off measure, will cause a large amount of leaked liquids when occuring promptly to leak situation, easily cause security incident.Way in industry is to add Emergeny Cutoff Valves on output pipeline at present, and the drawback of doing like this is: pipeline has fault to want cutting-off valve, and partially liq is stayed between storage tank and cut-off valve, increases cold damage, and potential safety hazard is arranged; Moreover, if occur between cut-off valve and storage tank by drawing crack, effective emergency cut-off leaked liquid just.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide the Emergeny Cutoff Valves at the bottom of built-in tank in a kind of cryogenic liquid tank, when externally pipe network ran into emergency, this valve can cut off rapidly storage tank and exterior tubing, guaranteed the safety of cryogenic liquid tank.
The purpose of this utility model is completed by following technical solution, and it mainly comprises primary valve part and drive part, and described primary valve part is fixedly installed in the bottom of cryogenic liquid tank by base plate; Drive part is placed in the top of cryogenic liquid tank, is that working rope, another root are connected for two stainless steel ropes of urgent rope by one between the two.When working rope lost efficacy, start promptly rope.
Be fixed with valve seat on the base plate of described primary valve part, be connected with leading truck on valve seat, leading truck is built-in with and can moves up and down and coordinate the big valve flap that consists of a large sealing pair with valve seat; Big valve flap top is equipped with one by valve rod and can moves up and down and coordinate with big valve flap center valve opening the little flap that consists of little sealing pair.
Described leading truck top is connected with a leading truck lid, and described big valve flap top is connected with valve clack cover; Dispose one on little flap and be positioned at the guide rod that big valve flap moves up and down for little flap, valve rod passes described valve clack cover and leading truck lid, and its end is connected in the stainless steel rope.
Described drive part is arranged on the top of cryogenic liquid tank by adapter, it mainly is comprised of actuator, piston rod, driving pin, upper valve rod, guide pad and protective housing, actuator comprises that cylinder block, piston, spring and piston outer end are connected with piston rod, and this piston rod is connected with by driving pin the upper valve rod that the end connects the stainless steel rope.
The utility model adopts double valve plates lobe hard sealing structure, and valve seat is made with stainless steel material, and big or small valve clack sealing surface adopts the built-up welding stellite to make.
The utility model adopts the Double-clack structure, and the valve opening order is under the traction of stainless steel rope, at first open little flap, after pressure reduction reduces, open big valve flap, reach the maximum flow ability, when it can guarantee that Emergeny Cutoff Valves due zero is revealed sealability, can reduce valve opening moment, compare with common emergency cut-off valve arrangement, the actuator of use is less, structure is more reasonable, compact, and using effect is better.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of primary valve part described in the utility model.
Fig. 3 is the structural representation of drive part described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Figure 1, the utility model mainly comprises primary valve part 1 and drive part 2, and described primary valve part is fixedly installed in the bottom of cryogenic liquid tank 4 by base plate 3; Drive part 2 is placed in the top of cryogenic liquid tank 4, is connected by two stainless steel ropes 5 between the two, and wherein one is that working rope, another root are restricted for urgent.
Shown in Figure 2, be fixed with valve seat 6 on the base plate 3 of described primary valve part 1, be connected with leading truck 7 on valve seat 6, leading truck 7 is built-in with and can moves up and down and coordinate the big valve flap 8 that consists of a large sealing pair with valve seat 6; Big valve flap 8 tops are equipped with one by valve rod 9 and can move up and down and coordinate with big valve flap 8 center valve openings the little flap 10 that consists of little sealing pair.
Described leading truck 7 tops are connected with a leading truck lid 11, and described big valve flap 8 tops are connected with valve clack cover 12; Dispose one on little flap 10 and be positioned at the guide rod 13 that big valve flap 8 moves up and down for little flap 10, valve rod 9 passes described valve clack cover 12 and leading truck lid 11, and its end directly or indirectly is connected in stainless steel rope 5.
Valve seat described in the utility model 6 adopts stainless steel materials to make, and big or small valve clack sealing surface adopts the built-up welding stellite to make and consisted of double valve plates lobe hard sealing structure.
Shown in Figure 3, described drive part 2 is by taking over 14 tops that are arranged on cryogenic liquid tank 4, it mainly is comprised of actuator, piston rod 15, driving pin 16, upper valve rod 17, guide pad 18 and protective housing 19, actuator comprises cylinder block 20, piston, spring and the outer air inlet/outlet 21 of cylinder block 20, the piston outer end is connected with piston rod 15, and this piston rod 15 is connected with by driving pin 16 upper valve rod 17 that the end connects stainless steel rope 5.
Embodiment: at the bottom of built-in tank described in the utility model, Emergeny Cutoff Valves is a kind of large-scale low-temperature liquid storage vessel special valve, and this valve is divided into: main valve and driving two large divisions.
Primary valve part 1 mainly forms (see figure 2) by base plate, valve seat, leading truck, big or small flap, valve clack cover, leading truck lid, guide rod etc.Little flap and big valve flap form a sealing pair, and big valve flap and valve seat form a sealing pair, and little flap can move up and down in big valve flap, and the guide rod guiding is arranged; Big valve flap can move up and down in leading truck.
Drive part under nominal situation, actuator's (single-acting cylinder) air inlet, the spring pressurized in actuator, its piston rod shrinks, and by the stainless steel rope, big or small flap is mentioned Open valve.When running into emergency work condition and need to cut off the UNICOM of storage tank and exterior line, gas loses in actuator, under spring action, piston rod is stretched out, flap is under the acting in conjunction of gravity and storage tank pressure medium, throttle down, the UNICOM of fast shut-off storage tank and exterior line avoids a large amount of leaked liquids, guarantees safety.
Claims (5)
1. Emergeny Cutoff Valves at the bottom of built-in tank in a cryogenic liquid tank, it mainly comprises primary valve part and drive part, it is characterized in that described primary valve part is fixedly installed in the bottom of cryogenic liquid tank by base plate; Drive part is placed in the top of cryogenic liquid tank, is that working rope, another root are connected for two stainless steel ropes of urgent rope by one between the two.
2. Emergeny Cutoff Valves at the bottom of built-in tank in cryogenic liquid tank according to claim 1, it is characterized in that being fixed with valve seat on the base plate of described primary valve part, be connected with leading truck on valve seat, leading truck is built-in with and can moves up and down and coordinate the big valve flap that consists of a large sealing pair with valve seat; Big valve flap top is equipped with one by valve rod and can moves up and down and coordinate with big valve flap center valve opening the little flap that consists of little sealing pair.
3. Emergeny Cutoff Valves at the bottom of built-in tank in cryogenic liquid tank according to claim 2 is characterized in that described leading truck top is connected with a leading truck lid, and described big valve flap top is connected with valve clack cover; Dispose one on little flap and be positioned at the guide rod that big valve flap moves up and down for little flap, valve rod passes described valve clack cover and leading truck lid, and its end connects the stainless steel rope.
4. Emergeny Cutoff Valves at the bottom of built-in tank in cryogenic liquid tank according to claim 2, is characterized in that valve seat adopts stainless steel material to make, and big or small valve clack sealing surface adopts the built-up welding stellite to make and consisted of double valve plates lobe hard sealing structure.
5. Emergeny Cutoff Valves at the bottom of built-in tank in cryogenic liquid tank according to claim 1, it is characterized in that described drive part is arranged on the top of cryogenic liquid tank by adapter, it mainly is comprised of actuator, piston rod, driving pin, upper valve rod, guide pad and protective housing, actuator comprises that cylinder block, piston, spring and piston outer end are connected with piston rod, and this piston rod is connected with by driving pin the upper valve rod that the end connects the stainless steel rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584933 CN202946701U (en) | 2012-11-08 | 2012-11-08 | Built-in tank bottom emergency cut-off valve in cryogenic liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584933 CN202946701U (en) | 2012-11-08 | 2012-11-08 | Built-in tank bottom emergency cut-off valve in cryogenic liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946701U true CN202946701U (en) | 2013-05-22 |
Family
ID=48422403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220584933 Withdrawn - After Issue CN202946701U (en) | 2012-11-08 | 2012-11-08 | Built-in tank bottom emergency cut-off valve in cryogenic liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927293A (en) * | 2012-11-08 | 2013-02-13 | 杭州杭氧工装泵阀有限公司 | Emergency cut-off valve at bottom of built-in tank in low-temperature liquid storage tank |
| CN103821948A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Bellows seal valve |
-
2012
- 2012-11-08 CN CN 201220584933 patent/CN202946701U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927293A (en) * | 2012-11-08 | 2013-02-13 | 杭州杭氧工装泵阀有限公司 | Emergency cut-off valve at bottom of built-in tank in low-temperature liquid storage tank |
| CN102927293B (en) * | 2012-11-08 | 2014-09-03 | 杭州杭氧工装泵阀有限公司 | Emergency cut-off valve at bottom of built-in tank in low-temperature liquid storage tank |
| CN103821948A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Bellows seal valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130522 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |