CN216079297U - Hydrogen buffer tank emptying device - Google Patents
Hydrogen buffer tank emptying device Download PDFInfo
- Publication number
- CN216079297U CN216079297U CN202121667800.0U CN202121667800U CN216079297U CN 216079297 U CN216079297 U CN 216079297U CN 202121667800 U CN202121667800 U CN 202121667800U CN 216079297 U CN216079297 U CN 216079297U
- Authority
- CN
- China
- Prior art keywords
- emptying
- buffer tank
- valve
- hydrogen buffer
- pipeline
- 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.)
- Expired - Fee Related
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000001257 hydrogen Substances 0.000 title claims abstract description 67
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 67
- 238000013022 venting Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a hydrogen buffer tank emptying device which comprises a hydrogen buffer tank, a first emptying pipeline, a second emptying pipeline, a first emptying valve group, a second emptying valve group, a pressure gauge and a controller, wherein the hydrogen buffer tank is connected with the first emptying pipeline; the first emptying pipeline and the second emptying pipeline are connected in parallel, the head ends of the first emptying pipeline and the second emptying pipeline are communicated with the hydrogen buffer tank, and the first emptying valve group is arranged on the first emptying pipeline and sequentially comprises a first manual valve and a first electromagnetic valve in the direction from the head end to the tail end; the pressure gauge is used for measuring the pressure of the hydrogen buffer tank and is electrically connected with the controller; the second emptying valve group is arranged on the second emptying pipeline and comprises at least one manual valve; the controller is electrically connected with the first electromagnetic valve and controls the first electromagnetic valve to be opened and closed according to the numerical value of the pressure gauge. The hydrogen buffer tank emptying device can automatically empty, is timely in emptying, is simple to operate and ensures safety.
Description
Technical Field
The utility model belongs to the technical field of chemical production, and particularly relates to a hydrogen buffer tank emptying device.
Background
In the chlor-alkali industry, the hydrogen as a by-product is generally stored in a hydrogen buffer tank after being purified, and then the hydrogen can be sold or used as a raw material for the next chemical synthesis such as hydrogen chloride synthesis. However, when the pressure in the hydrogen buffer tank is greater than the set value, the purging operation is required. Referring to the hydrogen buffer tank venting apparatus of fig. 1, for the venting operation of the hydrogen buffer tank 1, hydrogen gas is vented from the vent pipe 3 by operating the manual vent valve 2 in the conventional method. Because the operator needs to go to the field for operation, the operation is very convenient and unsafe; when the hydrogen pressure is too large, the hydrogen buffer tank cannot be emptied in time in such a mode, so that potential safety hazards exist in the hydrogen buffer tank.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to overcome the defects in the prior art and provide the hydrogen buffer tank emptying device, when the hydrogen buffer tank needs to be emptied, the hydrogen buffer tank can be automatically emptied, the emptying is timely, the operation is simple, and the safety is ensured.
The embodiment of the utility model is realized by the following technical scheme:
a hydrogen buffer tank emptying device, comprising: the hydrogen gas buffer tank, the first emptying pipeline, the second emptying pipeline, the first emptying valve group, the second emptying valve group, the pressure gauge and the controller are arranged in the hydrogen gas buffer tank;
the first emptying pipeline and the second emptying pipeline are connected in parallel, the head ends of the first emptying pipeline and the second emptying pipeline are communicated with the hydrogen buffer tank, and the first emptying valve group is arranged on the first emptying pipeline and sequentially comprises a first manual valve and a first electromagnetic valve in the direction from the head end to the tail end;
the pressure gauge is used for measuring the pressure of the hydrogen buffer tank and is electrically connected with the controller;
the second emptying valve group is arranged on the second emptying pipeline and comprises at least one manual valve;
the controller is electrically connected with the first electromagnetic valve and controls the first electromagnetic valve to be opened and closed according to the numerical value of the pressure gauge.
The utility model is mutually standby through the arrangement of two parallel emptying pipelines, and any pipeline can be selected for emptying when in use. In general, a first emptying pipeline is used for working, and a second emptying valve group on a second emptying pipeline is closed; when first unloading pipeline during operation, first manual valve is normally open state, and the controller is given to the pressure value that the manometer will detect, if the pressure value exceeds pressure threshold value, the controller then controls first solenoid valve and opens and carry out the unloading, if the pressure value reduces to being less than pressure threshold value, then controls first solenoid valve and closes. The hydrogen buffer tank emptying device can automatically empty when the hydrogen pressure exceeds a threshold value, is timely emptied, is simple to operate and ensures safety.
Further, the first emptying valve group further comprises a second manual valve arranged at the rear end of the second electromagnetic valve. First unloading pipeline during operation, the manual valve of second also is normally open state, and when the first unloading valves on first unloading pipeline damaged, needn't park the maintenance, lets second unloading pipeline work, only need to close first manual valve and the manual valve of second on the first unloading pipeline and can maintain first solenoid valve simultaneously under the condition of not shutting down.
Further, the first emptying valve group further comprises a second electromagnetic valve positioned between the first electromagnetic valve and the second manual valve, and the controller is also electrically connected with the second electromagnetic valve and controls the second electromagnetic valve to be opened and closed. Through the setting of second solenoid valve for two solenoid valves are reserve each other, and when one of them solenoid valve damaged, another solenoid valve still can guarantee that evacuation work goes on smoothly.
Preferably, the second solenoid valve is a proportional solenoid valve. The proportion solenoid valve chooses for use, can be so that the solenoid valve can surpass the size of opening of pressure threshold value and nimble selection solenoid valve according to hydrogen buffer tank internal pressure to make the steady decline of hydrogen buffer tank internal pressure and can not waste hydrogen.
Further, the hydrogen buffer tank emptying device further comprises a computer terminal, wherein the computer terminal is electrically connected with the controller and controls the first electromagnetic valve and the second electromagnetic valve in a linkage mode through the controller. The first electromagnetic valve and the second electromagnetic valve can be controlled to be opened and closed directly by the controller or can be manually controlled to be opened and closed on the computer terminal.
Preferably, the first manual valve and the second manual valve are ball valves.
Further, the second emptying valve group comprises a third manual valve and a fourth manual valve which are sequentially arranged. When the second emptying pipeline is used, the second emptying valve group is provided with two manual valves so that one manual valve can be used for standby when damaged.
Preferably, the third manual valve and the fourth manual valve are ball valves.
Further, the controller is a PLC controller, and the pressure gauge is a digital pressure gauge.
Furthermore, the hydrogen buffer tank emptying device further comprises a measuring pipeline and a fifth manual valve, the measuring pipeline is communicated with the hydrogen buffer tank, the pressure gauge and the fifth manual valve are sequentially arranged on the measuring pipeline, and the fifth manual valve is located at one end close to the hydrogen buffer tank.
For a better understanding and practice, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the configuration of a prior art hydrogen buffer tank flare;
FIG. 2 is a schematic configuration diagram of the hydrogen buffer tank emptying device of example 1;
wherein: 100-hydrogen buffer tank, 200-first emptying pipeline, 300-second emptying pipeline, 400-first emptying valve group, 401-first manual valve, 402-first electromagnetic valve, 403-second electromagnetic valve, 404-second manual valve, 500-second emptying valve group, 501-third manual valve, 502-fourth manual valve, 600-pressure gauge, 700-controller, 800-control cable, 900-computer terminal, 110-measuring pipeline and 120-fifth manual valve.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Furthermore, the terms first, second, third and the like in the description and in the claims, are used for descriptive purposes only to distinguish one element from another, and are not to be construed as indicating or implying relative importance or implying any order or order to the indicated elements. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Similarly, the terms "fixed" and "connected," as used in the description and claims, are not to be construed as limited to direct connection. Thus, the expression "device a is connected to device B" should not be limited to devices or systems in which device a is directly connected to device B, meaning that there is a path between device a and device B, which may be a path including other devices or tools.
Example 1
The embodiment 1 provides a hydrogen buffer tank emptying device, as shown in fig. 2, which includes a hydrogen buffer tank 100, a first emptying pipeline 200, a second emptying pipeline 300, a first emptying valve group 400, a second emptying valve group 500, a pressure gauge 600 and a controller 700; the first emptying pipeline 200 and the second emptying pipeline 300 are connected in parallel, the head ends of the first emptying pipeline and the second emptying pipeline are communicated with the hydrogen buffer tank 100, and the first emptying valve group 400 is arranged on the first emptying pipeline 200 and sequentially comprises a first manual valve 401 and a first electromagnetic valve 402 from the head end to the tail end; the pressure gauge 600 is used for measuring the pressure of the hydrogen buffer tank 100 and is electrically connected with the controller 700; the second venting valve set 500 is arranged on the second venting pipeline 300 and comprises at least one manual valve; the controller 700 is electrically connected with the first solenoid valve 402 through a control cable 800, and controls the opening and closing of the first solenoid valve 402 according to the value of the pressure gauge 600. This embodiment is through the setting of two parallelly connected unloading pipelines, and each other is reserve, can choose for use any one pipeline to carry out the unloading during the use. The first venting line 200 is normally used for operation, and the second venting valve block 500 on the second venting line 300 is closed; when first atmospheric line 200 during operation, first manual valve 401 is normally open state, and manometer 600 sends the pressure value that detects to controller 700, and if the pressure value exceeds pressure threshold value, controller 700 then controls first solenoid valve 402 and opens and empty, if the pressure value reduces to being less than pressure threshold value, then controls first solenoid valve 402 and closes. The hydrogen buffer tank 100 emptying device can automatically empty when the hydrogen pressure exceeds a threshold value, the operation is simple, the emptying is timely, and the safety is guaranteed.
In a preferred embodiment, the first bleed valve block 400 further includes a second manual valve 404 disposed at a rear end of the first solenoid valve 402. When the first emptying pipeline 200 works, the second manual valve 404 is also in a normally open state, when the first emptying valve group 400 on the first emptying pipeline 200 is damaged, the second emptying pipeline 300 does not need to be stopped for maintenance, and the first electromagnetic valve 402 can be maintained simultaneously on the first emptying pipeline 200 under the condition of no stop only by closing the first manual valve 401 and the second manual valve 404. In a further preferred embodiment, the first flare stack 400 further includes a second solenoid valve 403 between the first solenoid valve 402 and the second manual valve 404, and the controller 700 is further electrically connected to the second solenoid valve 403 via a control cable 800 and controls the opening and closing of the second solenoid valve 403. By arranging the second solenoid valve 403, the two solenoid valves are mutually standby, and when one of the solenoid valves is damaged, the other solenoid valve can still ensure that the emptying operation is smoothly carried out. Preferably, the second solenoid valve 403 is a proportional solenoid valve, and the opening size of the solenoid valve can be flexibly selected according to how much the pressure in the hydrogen buffer tank 100 exceeds the pressure threshold value, so as to enable the pressure in the hydrogen buffer tank 100 to drop smoothly and avoid wasting hydrogen. If the opening is too large, the hydrogen is discharged too much, which not only wastes gas, but also causes the pressure to drop rapidly, which is not favorable for the stability of the pressure. The opening degree of the second solenoid valve 403 can be preset in the controller, for example: it may be set in the controller 700 that when the hydrogen pressure exceeds the threshold 85%, the second electromagnetic valve 403 is opened by 20%; when the threshold value is exceeded by 90%, the second electromagnetic valve 403 is opened by 50%; beyond the threshold of 100%, the second solenoid valve 403 is opened 100%, and so on.
In one embodiment, the hydrogen buffer tank emptying device further comprises a computer terminal 900, and the computer terminal 900 is electrically connected to the controller 700 and is linked with the controller 700 to control the first solenoid valve 402 and the second solenoid valve 403. In use, the controller 700 may be selected to automatically control the opening and closing of the first solenoid valve 402 and the second solenoid valve 403 according to circumstances, or the computer terminal 900 may be manually controlled to open and close both the solenoid valves. Preferably, the first manual valve 401 and the second manual valve 404 are ball valves, and the ball valves are opened and closed more rapidly, so that the operation is more timely.
In one embodiment, the second flare stack 500 includes a third manual valve 501 and a fourth manual valve 502 disposed in series. When the second vent line 300 is used, the second vent valve block 500 is provided with two manual valves so that one of them can be used for standby when damaged. Preferably, the third manual valve 501 and the fourth manual valve 502 are both ball valves. In one embodiment, controller 700 is a PLC controller and pressure gauge 600 is a digital pressure gauge.
In a specific embodiment, the hydrogen buffer tank emptying device further comprises a measuring pipeline 110 and a fifth manual valve 120, the measuring pipeline 110 is communicated with the hydrogen buffer tank 100, a pressure gauge 600 and the fifth manual valve 120 are sequentially arranged on the measuring pipeline 110, and the fifth manual valve 120 is located near one end of the hydrogen buffer tank 100.
The embodiments of the present invention are not limited to the above-described embodiments, and various modifications or variations of the embodiments of the present invention are intended to be included within the scope of the claims and equivalent technical scope of the embodiments of the present invention, provided they do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A hydrogen buffer tank emptying device, comprising: the hydrogen gas buffer tank, the first emptying pipeline, the second emptying pipeline, the first emptying valve group, the second emptying valve group, the pressure gauge and the controller are arranged in the hydrogen gas buffer tank;
the first emptying pipeline and the second emptying pipeline are connected in parallel, the head ends of the first emptying pipeline and the second emptying pipeline are communicated with the hydrogen buffer tank, and the first emptying valve group is arranged on the first emptying pipeline and sequentially comprises a first manual valve and a first electromagnetic valve in the direction from the head end to the tail end;
the pressure gauge is used for measuring the pressure of the hydrogen buffer tank and is electrically connected with the controller;
the second emptying valve group is arranged on the second emptying pipeline and comprises at least one manual valve;
the controller is electrically connected with the first electromagnetic valve and controls the first electromagnetic valve to be opened and closed according to the numerical value of the pressure gauge.
2. The hydrogen buffer tank emptying device according to claim 1, wherein: the first emptying valve group further comprises a second manual valve arranged at the rear end of the first electromagnetic valve.
3. The hydrogen buffer tank venting device according to claim 2, characterized in that: the first emptying valve group further comprises a second electromagnetic valve positioned between the first electromagnetic valve and the second manual valve, and the controller is further electrically connected with the second electromagnetic valve and controls the second electromagnetic valve to be opened and closed.
4. The hydrogen buffer tank venting device according to claim 3, characterized in that: the second solenoid valve is a proportional solenoid valve.
5. The hydrogen buffer tank emptying device according to claim 4, wherein: the hydrogen buffer tank emptying device further comprises a computer terminal, wherein the computer terminal is electrically connected with the controller and controls the first electromagnetic valve and the second electromagnetic valve in a linkage mode through the controller.
6. The hydrogen buffer tank venting device according to claim 2, characterized in that:
and the first manual valve and the second manual valve are ball valves.
7. The hydrogen buffer tank emptying device according to claim 1, wherein:
the second emptying valve group comprises a third manual valve and a fourth manual valve which are arranged in sequence.
8. The hydrogen buffer tank venting device according to claim 7, characterized in that:
and the third manual valve and the fourth manual valve are both ball valves.
9. The hydrogen buffer tank emptying device according to claim 1, wherein: the controller is a PLC controller, and the pressure gauge is a digital pressure gauge.
10. The hydrogen buffer tank emptying device according to claim 1, wherein: the hydrogen buffer tank is communicated with the hydrogen buffer tank, the pressure gauge and the fifth manual valve are sequentially arranged on the measuring pipeline, and the fifth manual valve is positioned at one end close to the hydrogen buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121667800.0U CN216079297U (en) | 2021-07-21 | 2021-07-21 | Hydrogen buffer tank emptying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121667800.0U CN216079297U (en) | 2021-07-21 | 2021-07-21 | Hydrogen buffer tank emptying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216079297U true CN216079297U (en) | 2022-03-18 |
Family
ID=80666314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121667800.0U Expired - Fee Related CN216079297U (en) | 2021-07-21 | 2021-07-21 | Hydrogen buffer tank emptying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216079297U (en) |
-
2021
- 2021-07-21 CN CN202121667800.0U patent/CN216079297U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220318 |