CN210950787U - Low-pressure protection system for preventing high pressure channeling of decarburization tower - Google Patents
Low-pressure protection system for preventing high pressure channeling of decarburization tower Download PDFInfo
- Publication number
- CN210950787U CN210950787U CN201920467040.5U CN201920467040U CN210950787U CN 210950787 U CN210950787 U CN 210950787U CN 201920467040 U CN201920467040 U CN 201920467040U CN 210950787 U CN210950787 U CN 210950787U
- Authority
- CN
- China
- Prior art keywords
- pressure
- storage tank
- low
- hole
- pressure storage
- 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.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A protection system for preventing high pressure channeling and low pressure channeling of a decarbonization tower comprises a high pressure storage tank, a cut-off valve, a regulating valve and a low pressure storage tank, wherein the high pressure storage tank, the cut-off valve, the regulating valve and the low pressure storage tank are sequentially communicated through a pipeline from left to right; if the liquid level instrument detection device breaks down, high pressure in the high-pressure storage tank can be fleed to the low-pressure storage tank, the pressure in the low-pressure storage tank is detected through the increased pressure transmitter to rise to the set value of the pressure transmitter, then the pressure transmitter transmits the detected signal to the SIS system, the SIS system is interlocked and closed, the cut-off valve and the regulating valve are manually turned off, and the safety of the low-pressure storage tank is ensured.
Description
Technical Field
The application relates to the technical field of natural gas chemical industry, in particular to a low-pressure protection system for preventing high pressure channeling of a decarbonization tower.
Background
In the production and operation process of natural gas chemical enterprises, a plurality of places have the risk of pressure channeling, wherein the pressure channeling refers to the situation that liquid in a high-pressure container is emptied to cause gas to flow into a low-pressure container due to some reason, and the discharge capacity of a safety leakage prevention device (such as a safety valve or a rupture disk) is smaller than the discharge capacity, so that the pressure of the low-pressure container is increased to damage equipment and even cause explosion.
The pressure channeling damage is large and not small, and can cause irreversible damage to equipment and pipelines, thus influencing the input of production cost and the output of production benefit, seriously endangering the life safety of personnel and causing loss to companies.
At present, decarbonization tower high pressure among the prior art scurries low pressure protection system, including high-pressure storage tank, trip valve, governing valve and low pressure storage tank, high-pressure storage tank, trip valve, governing valve and low pressure storage tank loop through the pipeline intercommunication from left to right, and the high-pressure liquid in the high-pressure storage tank is after the absorption, and the bottom is discharged into in the low pressure storage tank through trip valve and governing valve. Be provided with liquid level instrument detection device on the high-pressure storage tank, but when single liquid level instrument detection device broke down, can lead to the trip valve can not in time move, and then takes place to scurry and press.
SUMMERY OF THE UTILITY MODEL
The application provides a prevent that decarbonization tower high pressure from scurrying low pressure protection system to when solving among the prior art single liquid level meter detection device and breaking down, can lead to the liquid level control valve can not in time move, and then take place to scurry the problem of pressing.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a prevent decarbonization tower high pressure and scurry low pressure protection system, includes high-pressure storage tank, trip valve, governing valve and low pressure storage tank, high-pressure storage tank, trip valve, governing valve and low pressure storage tank loop through the pipeline intercommunication from left to right, be provided with level gauge detection device on the high-pressure storage tank, be provided with pressure transmitter on the low pressure storage tank outer wall, pressure transmitter passes through fastener and fixes on the low pressure storage tank, the last SIS system that is connected with of pressure transmitter, the SIS system is connected with the level gauge device electricity.
Further: the fastening device comprises a base, and the base is fixed on the outer wall of the low-pressure storage tank through a bolt;
the base is provided with a first through hole which is concentric with a second through hole arranged on the low-pressure storage tank;
a sensing probe of the pressure transmitter sequentially penetrates through the first through hole and the second through hole from top to bottom;
a sensing probe of the pressure transmitter is provided with a third through hole from the right side, and the third through hole is higher than the outer wall of the low-pressure storage tank;
a rack bar penetrates through the third through hole, one end of the rack bar is inserted into a hole formed in the side wall of the base, a gear is meshed with the other end of the rack bar, a rotating rod penetrates through the gear and is fixedly connected with the gear, supports penetrate through two ends of the rotating rod respectively and are rotatably connected with the rotating rod, and the supports are welded on the upper surface of the base;
the rack bar is arranged in a groove formed in the upper surface of the base, and the bottom of the rack bar is abutted to the groove.
Further: the end part of the rotating rod is fixedly connected with a rotating handle.
Further: the outer wall of the rotating handle is provided with a plurality of rotating grooves which are evenly distributed on the outer wall of the rotating handle at intervals.
Further: the rotating groove is arc-shaped.
The technical scheme provided by the application comprises the following beneficial technical effects:
1. when the liquid level in the high-pressure storage tank is lower than 20% through the detection device of the liquid level instrument, the detection device of the liquid level instrument transmits a signal to the SIS system, the SIS system is interlocked and closed, and the cut-off valve and the regulating valve are manually turned off, so that the safety of the low-pressure storage tank is ensured;
if the liquid level instrument detection device fails, high pressure in the high-pressure storage tank can flow into the low-pressure storage tank, the increased pressure transmitter detects that the pressure in the low-pressure storage tank rises to a set value of the pressure transmitter, the pressure transmitter transmits a detected signal to the SIS system, the SIS system is interlocked and closed, and the cut-off valve and the regulating valve are manually turned off, so that the safety of the low-pressure storage tank is ensured;
2. by arranging the fastening device, the pressure transmitter is conveniently arranged on the low-pressure storage tank or is convenient to overhaul and replace;
the installation process comprises the following steps: firstly, fixing a base on a low-pressure storage tank through a bolt, so that a first through hole and a second through hole are concentric, and enabling a sensing probe of a pressure transmitter to sequentially pass through the first through hole and the second through hole from top to bottom by holding the pressure transmitter by an operator, so that the sensing probe of the pressure transmitter is inserted into the low-pressure storage tank; then an operator rotates the rotating rod, the rotating rod rotates to drive the gear to rotate, the gear rotates to dial the rack bar, the rack bar moves along the groove, and the rack bar moves to penetrate through the third through hole to fix the pressure transmitter on the low-pressure storage tank;
the disassembling process comprises the following steps: an operator rotates the rotating rod, the rotating rod rotates to drive the gear to rotate, the gear rotates to dial the rack bar, the rack bar moves away from the third through hole, and the operator extracts the pressure transmitter from the first through hole and the second through hole, so that the pressure transmitter is convenient to overhaul or replace;
3. by arranging the rotating handle, an operator can conveniently rotate the rotating handle to drive the rotating rod, so that the operator can conveniently exert force;
4. the rotating groove is formed in the rotating handle, so that the friction force between the fingers and the rotating handle is increased, and operators can feel stronger;
5. be the arc through rotating the groove, the effectual groove fish tail operating personnel's that prevents to rotate finger, guarantees operating personnel's operation safety.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic diagram of an overall system provided by an embodiment of the present application;
FIG. 2 is a schematic perspective view of the low-pressure storage tank, the fastening device and the pressure transmitter in FIG. 1 according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of FIG. 2 provided in accordance with an embodiment of the present application;
fig. 4 is a schematic perspective view of the low-pressure tank of fig. 2 with the low-pressure tank removed according to an embodiment of the present disclosure.
Description of reference numerals: 1. a high pressure storage tank; 2. a shut-off valve; 3. adjusting a valve; 4. a low pressure storage tank; 5. a liquid level meter detection device; 6. a pressure transmitter; 7. a fastening device; 71. a base; 72. a first through hole; 73. a second through hole; 74. a third through hole; 75. a rack bar; 76. a gear; 77. rotating the rod; 78. a support; 79. a groove; 80. rotating the handle; 81. a rotating groove; 8. SIS systems.
Detailed Description
As shown in fig. 1, a prevent decarbonization tower high pressure low pressure protection system that scurries, including high-pressure storage tank 1, trip valve 2, governing valve 3 and low pressure storage tank 4, high-pressure storage tank 1, trip valve 2, governing valve 3 and low pressure storage tank 4 loop through the pipeline intercommunication from left to right, be provided with liquid level instrument detection device 5 on the high-pressure storage tank 1, be provided with pressure transmitter 6 on the 4 outer walls of low pressure storage tank, pressure transmitter 6 passes through fastener 7 to be fixed on low pressure storage tank 4, is connected with SIS system 8 on pressure transmitter 6.
The model of the high-pressure storage tank 1 is T-101, the model of the low-pressure storage tank 4 is V-104, the model of the stop valve 2 is XV-1318, the model of the regulating valve 3 is LV-1317, the model of the pressure transmitter 6 is PT-1319, and the liquid level instrument detection device 5 can be purchased in the market.
Referring to fig. 2 to 4, the fastening device 7 includes a base 71, a first through hole 72 is formed in the base 71, the first through hole 72 is concentrically arranged with a second through hole 73 formed in the low pressure tank 4, and the base 71 is fixed on the outer wall of the low pressure tank 4 by bolts.
The sensing probe of the pressure transmitter 6 passes through the first through hole 72 and the second through hole 73 in this order from top to bottom.
The sensing probe of the pressure transmitter 6 is provided with a third through hole 74 from the right, and the third through hole 74 is higher than the outer wall of the low-pressure storage tank 4.
The third through hole 74 is provided with a rack bar 75 in a penetrating manner, the rack bar 75 is located in a groove 79 arranged on the upper surface of the base 71, and the bottom of the rack bar 75 is abutted to the groove 79.
One end of the rack bar 75 is inserted into a hole formed in the side wall of the base 71, a gear 76 is meshed with the other end of the rack bar 75, a rotating rod 77 is arranged on the gear 76 in a penetrating mode, the rotating rod 77 is fixedly connected with the gear 76, supports 78 are arranged at two ends of the rotating rod 77 in a penetrating mode respectively, and the supports 78 are rotatably connected with the rotating rod 77.
The tip fixedly connected with twist grip 80 of dwang 77 has seted up a plurality of arcs on twist grip 80's the outer wall and has rotated groove 81, and a plurality of arcs rotate groove 81 even, interval distribution on twist grip 80 outer wall.
The bracket 78 is welded to the upper surface of the base 71.
The working principle is as follows: when the liquid level in the high-pressure storage tank 1 is detected to be lower than 20% through the liquid level instrument detection device 5, the liquid level instrument detection device 5 transmits a signal to the SIS system 8, the SIS system 8 is interlocked and closed, the stop valve 2 and the regulating valve 3 are manually turned off, and the safety of the low-pressure storage tank 4 is ensured.
If liquid level instrument detection device 5 breaks down, high pressure in high-pressure storage tank 1 can scurry in low pressure storage tank 4, detects through the pressure transmitter 6 that increases that the pressure in low pressure storage tank 4 rises to the setting value of pressure transmitter 6, then pressure transmitter 6 transmits the signal that detects to SIS system 8, closes through SIS system 8 interlocking, and manual shutoff trip valve 2 and governing valve 3 guarantee the safety of low pressure storage tank 4.
Installation process of pressure transmitter 6: firstly, fixing a base 71 on a low-pressure storage tank 4 through a bolt, so that a first through hole 72 and a second through hole 73 are concentric, and an operator holds a pressure transmitter 6 to enable a sensing probe of the pressure transmitter 6 to sequentially pass through the first through hole 72 and the second through hole 73 from top to bottom, so that the sensing probe of the pressure transmitter 6 is inserted into the low-pressure storage tank 4; then, the operator rotates the rotating rod 77, the rotating rod 77 rotates to drive the gear 76 to rotate, the gear 76 rotates to dial the rack bar 75, the rack bar 75 moves along the groove 79, and the rack bar 75 moves to penetrate through the third through hole 74 to fix the pressure transmitter 6 on the low pressure storage tank 4.
The disassembling process comprises the following steps: an operator rotates the rotating rod 77, the rotating rod 77 rotates to drive the gear 76 to rotate, the gear 76 rotates to dial the rack bar 75, the rack bar 75 moves to leave the third through hole 74, and the operator extracts the pressure transmitter 6 from the first through hole 72 and the second through hole 73, so that the pressure transmitter 6 is convenient to overhaul or replace.
The occurrence of high-pressure blow-by pressure is effectively prevented by the above-described embodiment.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (5)
1. The utility model provides a prevent decarbonization tower high pressure and scurry low pressure protection system, includes high pressure storage tank (1), trip valve (2), governing valve (3) and low pressure storage tank (4), high pressure storage tank (1), trip valve (2), governing valve (3) and low pressure storage tank (4) loop through the pipeline intercommunication from left to right, be provided with liquid level instrument detection device (5) on high pressure storage tank (1), a serial communication port, be provided with pressure transmitter (6) on low pressure storage tank (4) outer wall, pressure transmitter (6) are fixed on low pressure storage tank (4) through fastener (7), the electricity is connected with SIS system (8) on pressure transmitter (6), SIS system (8) are connected with liquid level instrument device electricity.
2. The protection system for preventing high-pressure channeling and low-pressure channeling of a decarbonization tower according to claim 1, characterized in that the fastening device (7) comprises a base (71), and the base (71) is fixed on the outer wall of the low-pressure storage tank (4) through bolts;
a first through hole (72) is formed in the base (71), and the first through hole (72) and a second through hole (73) formed in the low-pressure storage tank (4) are concentrically arranged;
a sensing probe of the pressure transmitter (6) sequentially penetrates through the first through hole (72) and the second through hole (73) from top to bottom;
a sensing probe of the pressure transmitter (6) is provided with a third through hole (74) from the right, and the third through hole (74) is higher than the outer wall of the low-pressure storage tank (4);
a rack bar (75) penetrates through the third through hole (74), one end of the rack bar (75) is inserted into a hole formed in the side wall of the base (71), a gear (76) is meshed at the other end of the rack bar (75), a rotating rod (77) penetrates through the gear (76), the rotating rod (77) is fixedly connected with the gear (76), supports (78) penetrate through two ends of the rotating rod (77) respectively, the supports (78) are rotatably connected with the rotating rod (77), and the supports (78) are welded on the upper surface of the base (71);
the rack bar (75) is positioned in a groove (79) formed in the upper surface of the base (71), and the bottom of the rack bar (75) is abutted to the groove (79).
3. The high-pressure channeling low-pressure protection system for the decarburization tower as claimed in claim 2, wherein a rotating handle (80) is fixedly connected to the end of the rotating rod (77).
4. The protection system for preventing high pressure channeling and low pressure channeling of a decarburization tower as claimed in claim 3, wherein the outer wall of the rotating handle (80) is provided with a plurality of rotating grooves (81), and the plurality of rotating grooves (81) are uniformly distributed on the outer wall of the rotating handle (80) at intervals.
5. The system for preventing high-pressure crossover and low-pressure crossover of a decarbonization tower according to claim 4, characterized in that the rotating groove (81) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467040.5U CN210950787U (en) | 2019-04-09 | 2019-04-09 | Low-pressure protection system for preventing high pressure channeling of decarburization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467040.5U CN210950787U (en) | 2019-04-09 | 2019-04-09 | Low-pressure protection system for preventing high pressure channeling of decarburization tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210950787U true CN210950787U (en) | 2020-07-07 |
Family
ID=71379405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920467040.5U Active CN210950787U (en) | 2019-04-09 | 2019-04-09 | Low-pressure protection system for preventing high pressure channeling of decarburization tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210950787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443757A (en) * | 2020-10-28 | 2021-03-05 | 中石化宁波工程有限公司 | System and method for preventing high-pressure channeling and low-pressure channeling of methanol device |
-
2019
- 2019-04-09 CN CN201920467040.5U patent/CN210950787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443757A (en) * | 2020-10-28 | 2021-03-05 | 中石化宁波工程有限公司 | System and method for preventing high-pressure channeling and low-pressure channeling of methanol device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210950787U (en) | Low-pressure protection system for preventing high pressure channeling of decarburization tower | |
| CN102580863A (en) | Nitrogen protection device of centrifugal machine | |
| CN203641868U (en) | Propane storage tank | |
| CN207943866U (en) | A kind of safeguard protection interlock based on Regular loading truck control system | |
| CN205023826U (en) | Filling device | |
| CN206830157U (en) | High pressure separator | |
| CN108019621A (en) | A kind of chemical leakage detection device | |
| CN202893529U (en) | Centrifugal machine on-line oxygen content detection and nitrogen protection device | |
| CN211040117U (en) | Pressurized plugging device for natural gas pipeline | |
| CN217463354U (en) | Rupture disc device capable of being repaired on line | |
| CN101706028A (en) | Plugging method | |
| CN214662263U (en) | Improved liquid level pressure tapping structure of torch water-sealed tank | |
| CN212309241U (en) | Coking tail gas collecting and treating device based on storage tank tail gas control emission | |
| CN203325639U (en) | Transformer with nitrogen injection fire extinguishing device | |
| CN203355717U (en) | Safe type hydrogenation reaction equipment | |
| CN210955433U (en) | Liquefied gas filling leakage alarming and cutting interlocking device | |
| CN216952628U (en) | Back pressure automatic alarm pressure relief device of explosion-proof pressure relief system | |
| CN209372409U (en) | System for off-line verification is carried out to running state pressure vessel and pipeline safety valve | |
| CN219912709U (en) | Damaged leakage protection alarm device of gas conveying pipeline | |
| CN204778813U (en) | Can prevent hydrogen feeding mechanism of hydrogen supply discontinuity | |
| CN209431099U (en) | A kind of on-line monitoring system applied to buried cross-country pipeline leakage | |
| CN203949917U (en) | A kind of for the oil product real-time detection apparatus under inflammable gas environment | |
| CN221054798U (en) | Safe connection device for dissipation gas collecting pipeline of chemical production storage tank | |
| CN203255568U (en) | Interlayer tank body with leakage detecting device | |
| CN203297945U (en) | Coal gas water seal roof caving pre-warning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |