CN215782579U - Liquid chlorine tank field leaks gaseous recovery processing system - Google Patents
Liquid chlorine tank field leaks gaseous recovery processing system Download PDFInfo
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- CN215782579U CN215782579U CN202121741682.3U CN202121741682U CN215782579U CN 215782579 U CN215782579 U CN 215782579U CN 202121741682 U CN202121741682 U CN 202121741682U CN 215782579 U CN215782579 U CN 215782579U
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Abstract
The utility model provides a liquid chlorine tank field leaks gaseous recovery processing system, including the toxic gas detector, the waste gas fan, the gas collecting pipe, the blast pipe, the lower reaches end of gas collecting pipe stretches out liquid chlorine tank field, link to each other with the air inlet of waste gas fan, the upper reaches end of blast pipe links to each other with the gas vent of waste gas fan, the lower reaches end is used for linking to each other with the waste gas absorption tower, be equipped with the trip valve on this blast pipe, the toxic gas detector sets up in liquid chlorine tank field, through circuit and waste gas fan, the trip valve electricity is connected, to the waste gas fan, the signal of telecommunication is sent to the trip valve output, control waste gas fan, the trip valve is opened simultaneously or is closed simultaneously. The device has the advantages of simple structure and low modification cost, normally keeps the liquid chlorine tank area in a closed state, can automatically discharge chlorine to the waste gas absorption tower for recycling after the toxic gas detector gives an alarm when the chlorine leaks, and can effectively protect the physical and mental health of operators.
Description
Technical Field
The utility model relates to the field of chemical industry, in particular to a system for recovering and treating leaked gas in a liquid chlorine tank field.
Background
Chlorine generated by electrolysis of the ionic membrane electrolytic cell is dried, frozen and liquefied by chemical enterprises and then is sent to a storage tank of a liquid chlorine tank field for storage. As chlorine belongs to extremely toxic gas, a first-level major hazard source is formed, and in order to avoid the situation that the leakage of chlorine affects the surrounding environment and causes the occurrence of personnel poisoning accidents, a closed recovery system is adopted in a liquid chlorine tank area.
At present, a closed recovery system configured in a liquid chlorine tank area mainly alarms through a toxic gas detector and is remotely transmitted to a DCS, DCS operators notify field operators after finding the chlorine leakage situation, the field operators wear an oxygen respirator and enter the field to confirm the chlorine leakage situation of the liquid chlorine tank area, if the chlorine leakage is confirmed, an emergency disposal plan is started to treat the leaked chlorine, a tail gas fan is started through manual operation, and the leaked chlorine in the liquid chlorine tank area is pumped into a continuously-running tail gas absorption device until the accident treatment is completed.
However, the treatment device has the risk that chlorine leakage cannot be found in time, an operator needs to start the tail gas fan on site, delay time is long, and the site operator is exposed in a toxic environment and is not beneficial to physical and psychological health of the operator.
Disclosure of Invention
The utility model aims to provide a system for recovering and treating leaked gas in a liquid chlorine tank area, which has the advantages of simple structure and low modification cost, the liquid chlorine tank area is normally kept in a closed state, and the leaked gas can realize that a toxic gas detector automatically discharges the gas to a waste gas absorption tower for recovery and treatment after alarming, so that the physical and psychological health of operators can be effectively protected.
The technical scheme of the utility model is as follows: a recovery processing system of leaked gas in a liquid chlorine tank area comprises a toxic gas detector, a waste gas fan, a gas collecting pipe and an exhaust pipe, wherein the gas collecting pipe comprises a first gas collecting branch pipe and a second gas collecting branch pipe, a plurality of gas collecting holes are respectively arranged on each gas collecting branch pipe, the first gas collecting branch pipe is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along a first side band and a second side band of the ground surface of the liquid chlorine tank area, the downstream end of the first gas collecting branch pipe extends out of the liquid chlorine tank area and is connected with an air inlet of the waste gas fan, the second gas collecting branch pipe is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along a fourth side band and a third side band of the ground surface of the liquid chlorine tank area, the downstream end of the second gas collecting branch pipe is connected with the first gas collecting branch pipe, the exhaust pipe comprises a first exhaust branch pipe and a second exhaust branch pipe, the upstream end of the first exhaust branch pipe is connected with an exhaust port of the waste gas fan, the low reaches end is used for linking to each other with the waste gas absorption tower, is equipped with the trip valve on this first exhaust branch pipe, set up normally closed valve on the second exhaust branch pipe, the upper reaches end and the first exhaust branch pipe of second exhaust branch pipe link to each other, are located between trip valve and the waste gas fan, and the low reaches end and the first exhaust branch pipe of second exhaust branch pipe link to each other, are located the low reaches of trip valve, the toxic gas detector sets up in liquid chlorine tank field, is connected through circuit and waste gas fan, trip valve electricity, to waste gas fan, trip valve output signal of telecommunication, controls waste gas fan, trip valve and opens simultaneously or closes simultaneously.
The upstream ends of the first gas collecting branch pipe and the second gas collecting branch pipe are sealed.
The gas collecting holes are divided into a plurality of groups and are uniformly distributed along the length direction of the first gas collecting branch pipe and the second gas collecting branch pipe, and the gas collecting holes of each group are uniformly distributed along the circumferential direction of the first gas collecting branch pipe and the second gas collecting branch pipe.
The first exhaust branch pipe is provided with a safety valve which is positioned at the downstream of the connecting point of the second exhaust branch pipe and the first exhaust branch pipe, and the safety valve is a normally open valve.
Adopt above-mentioned technical scheme to have following beneficial effect:
1. the recovery processing system of the leaked gas in the liquefied chlorine tank field comprises a toxic gas detector, a waste gas fan, a gas collecting pipe and an exhaust pipe, wherein the toxic gas detector is used for detecting the content of chlorine in the environment of the liquefied chlorine tank field and sending out a signal, the waste gas fan is used for pumping air, the gas collecting pipe is used for being connected with the waste gas fan and pumping out the leaked chlorine in the liquefied chlorine tank field, and the exhaust pipe is used for being connected with the waste gas fan and exhausting the pumped chlorine to a waste gas absorption tower. The gas collecting pipe comprises a first gas collecting branch pipe and a second gas collecting branch pipe, a plurality of gas collecting holes are respectively arranged on each gas collecting branch pipe, the first gas collecting branch pipe is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along a first side band and a second side band of the ground surface of the liquid chlorine tank area, the downstream end of the first gas collecting branch pipe extends out of the liquid chlorine tank area and is connected with an air inlet of the waste gas fan, the second gas collecting branch pipe is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along a fourth side band and a third side band of the ground surface of the liquid chlorine tank area, the downstream end of the second gas collecting branch pipe is connected with the first gas collecting branch pipe, namely, the first gas collecting branch pipe and the second gas collecting branch pipe surround the ground surface of the liquid chlorine tank area and are positioned at a low point, the specific gravity of leaked chlorine gas is greater than that of air, the leaked chlorine gas is deposited in the lower space of the liquid chlorine tank area and is quickly and efficiently absorbed into the gas collecting pipe through the uniformly distributed gas collecting holes, and the waste gas is discharged by a waste gas fan, so that the content of leaked chlorine in a liquid chlorine tank area can be quickly reduced, and the residual leaked chlorine is avoided. The blast pipe includes first exhaust branch, second exhaust branch, the upper reaches end of first exhaust branch links to each other with the gas vent of exhaust gas fan, and the low reaches end is used for linking to each other with the waste gas absorption tower, is equipped with the trip valve on this first exhaust branch, set up normally closed valve on the second exhaust branch, the upper reaches end of second exhaust branch links to each other with first exhaust branch, is located between trip valve and the exhaust gas fan, and the low reaches end of second exhaust branch links to each other with first exhaust branch, is located the low reaches of trip valve. Poisonous gas detector sets up in the liquid chlorine tank field, through circuit and waste gas fan, the trip valve electricity is connected, to the waste gas fan, the trip valve output signal of telecommunication, control waste gas fan, the trip valve is opened simultaneously or is closed simultaneously, when poisonous gas detector judges that there is not chlorine to leak, the waste gas fan, the trip valve all is in the closure state, and normally closed valve is in the closure state, make the liquid chlorine tank field be in the closure state, satisfy enterprise's production standard, when poisonous gas detector judges that chlorine leaks, the waste gas fan, the trip valve is opened simultaneously, arrange the chlorine that will leak fast to waste gas absorption tower recovery processing, and when the trip valve breaks down, can the manual work open normally closed valve, satisfy the demand of leaking chlorine is taken out fast.
2. The upstream ends of the first gas collecting branch pipe and the second gas collecting branch pipe are sealed, so that the negative pressure strength of gas collecting holes in the first gas collecting branch pipe and the second gas collecting branch pipe is improved, and the gas extraction efficiency of leaked chlorine gas can be effectively improved.
3. The gas collecting holes are divided into a plurality of groups and are uniformly distributed along the length direction of the first gas collecting branch pipe and the second gas collecting branch pipe, and the gas collecting holes of each group are uniformly distributed along the circumferential direction of the first gas collecting branch pipe and the second gas collecting branch pipe, so that the gas extraction efficiency of leaked chlorine gas is ensured, and the residual leaked chlorine gas is avoided.
4. The safety valve is arranged on the first exhaust branch pipe and located at the downstream of the connecting point of the second exhaust branch pipe and the first exhaust branch pipe, the safety valve is a normally open valve, the safety valve is kept unblocked under the normal condition, the safety valve can be closed under the emergency condition, the connection between the liquid chlorine tank area and the waste gas absorption tower is cut off, and the actual requirements of enterprises are met.
The following further description is made with reference to the accompanying drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of the connection of the present invention.
In the attached drawing, 1 is a toxic gas detector, 2 is a waste gas fan, 3 is a gas collecting pipe, 31 is a first gas collecting branch pipe, 32 is a second gas collecting branch pipe, 4 is an exhaust pipe, 41 is a first exhaust branch pipe, 42 is a second exhaust branch pipe, 5 is a gas collecting hole, 6 is a cut-off valve, 7 is a normally closed valve, and 8 is a safety valve.
Detailed Description
Referring to fig. 1, a specific embodiment of a system for recovering and treating leaked gas in a liquid chlorine tank field is shown. The recovery processing system of the leaked gas of the liquid chlorine tank field comprises a toxic gas detector 1, a waste gas fan 2, a gas collecting pipe 3 and an exhaust pipe 4, wherein generally, the ground surface of the liquid chlorine tank field is designed into a rectangle, the toxic gas detector is a conventional detecting instrument in the chlor-alkali industry, and the flow of the waste gas fan is reasonably selected according to the liquid chlorine storage capacity of the liquid chlorine tank field. The gas collecting pipe 3 comprises a first gas collecting branch pipe 31 and a second gas collecting branch pipe 32, the upstream ends of the first gas collecting branch pipe 31 and the second gas collecting branch pipe 32 are sealed, each gas collecting branch pipe is provided with a plurality of gas collecting holes 5, the first gas collecting branch pipe 31 is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along a first side band and a second side band of the ground surface of the liquid chlorine tank area, concretely, in the embodiment, the longitudinal pipe section of the first gas collecting branch pipe extends from bottom to top along the left side band of the ground surface of the liquid chlorine tank area, the transverse pipe section of the first gas collecting branch pipe extends from left to right along the upper side band of the ground surface of the liquid chlorine tank area, the downstream end of the first gas collecting branch pipe 31 extends out of the liquid chlorine tank area to right and is connected with the gas inlet of the waste gas fan 2, the second gas collecting branch pipe 32 is L-shaped and is arranged on the ground surface of the liquid chlorine tank area and extends along the fourth side band and the third side band of the ground surface of the liquid chlorine tank area, the downstream ends of the second gas collecting branch pipes 32 are connected with the first gas collecting branch pipes 31, specifically, in the embodiment, the transverse pipe sections of the second gas collecting branch pipes extend from left to right along the lower side band of the ground surface of the liquefied chlorine tank area, the longitudinal pipe sections of the second gas collecting branch pipes extend from bottom to top along the right side band of the ground surface of the liquefied chlorine tank area and are connected with the first gas collecting branch pipes. The exhaust pipe 4 includes a first exhaust branch pipe 41 and a second exhaust branch pipe 42. The upstream end of first exhaust branch pipe 41 links to each other with exhaust fan 2's gas vent, and the downstream end is used for linking to each other with the waste gas absorption tower, is equipped with trip valve 6 on this first exhaust branch pipe 41, set up normally closed valve 7 on the second exhaust branch pipe 42, the upstream end of second exhaust branch pipe 42 links to each other with first exhaust branch pipe 41, is located between trip valve 6 and the waste gas fan 2, and the downstream end of second exhaust branch pipe 42 links to each other with first exhaust branch pipe 41, is located trip valve 6's low reaches, and is general, in order to satisfy the actual demand of enterprise, sets up safety valve 8 on first exhaust branch pipe 41, is located the low reaches of the tie point of second exhaust branch pipe 42 and first exhaust branch pipe 41, safety valve 8 is normally open valve. Poisonous gas detector 1 sets up in the liquid chlorine tank field, is connected through circuit and waste gas fan 2, trip valve 6 electricity, to waste gas fan 2, the output signal of telecommunication of trip valve 6, controls waste gas fan 2, trip valve 6 and opens simultaneously or close simultaneously.
The working principle of the utility model is that when the liquid chlorine tank area is not leaked, the toxic gas detector can not detect the leaked chlorine and judges that the chlorine is not leaked, and the waste gas fan and the cut-off valve are in a closed state. When the liquid chlorine tank area leaks, the toxic gas detector detects leaked chlorine gas, the leaked chlorine gas is judged to be leaked, the leaked chlorine gas is deposited in the lower space of the liquid chlorine tank area, the toxic gas detector outputs an electric signal to control the exhaust gas fan and the cut-off valve to be opened, the leaked chlorine gas is extracted to the gas collecting branch pipe through the gas collecting holes in the first gas collecting branch pipe and the second gas collecting branch pipe, and the extracted leaked chlorine gas is discharged to the exhaust gas absorption tower through the exhaust gas fan and the first exhaust branch pipe to be recycled.
Claims (4)
1. The utility model provides a liquid chlorine tank field leaks gaseous recovery processing system which characterized in that: comprises a toxic gas detector (1), a waste gas fan (2), a gas collecting pipe (3) and an exhaust pipe (4),
the gas collecting pipe (3) comprises a first gas collecting branch pipe (31) and a second gas collecting branch pipe (32), a plurality of gas collecting holes (5) are respectively arranged on each gas collecting branch pipe,
the first gas collecting branch pipe (31) is L-shaped, is arranged on the ground surface of the liquid chlorine tank area and extends along the first side band and the second side band of the ground surface of the liquid chlorine tank area, the downstream end of the first gas collecting branch pipe (31) extends out of the liquid chlorine tank area and is connected with the gas inlet of the waste gas fan (2),
the second gas collecting branch pipe (32) is L-shaped, is arranged on the ground surface of the liquefied chlorine tank area and extends along the fourth side band and the third side band of the ground surface of the liquefied chlorine tank area, the downstream end of the second gas collecting branch pipe (32) is connected with the first gas collecting branch pipe (31),
the exhaust pipe (4) comprises a first exhaust branch pipe (41) and a second exhaust branch pipe (42),
the upstream end of the first exhaust branch pipe (41) is connected with an exhaust port of the exhaust gas fan (2), the downstream end of the first exhaust branch pipe is connected with the exhaust gas absorption tower, a cut-off valve (6) is arranged on the first exhaust branch pipe (41),
the second exhaust branch pipe (42) is provided with a normally closed valve (7), the upstream end of the second exhaust branch pipe (42) is connected with the first exhaust branch pipe (41) and is positioned between the stop valve (6) and the exhaust gas fan (2), the downstream end of the second exhaust branch pipe (42) is connected with the first exhaust branch pipe (41) and is positioned at the downstream of the stop valve (6),
poisonous gas detector (1) sets up in the liquid chlorine tank field, is connected through circuit and waste gas fan (2), trip valve (6) electricity, to waste gas fan (2), trip valve (6) output signal of telecommunication, control waste gas fan (2), trip valve (6) open simultaneously or close simultaneously.
2. The system for recovering and treating leaked gas of a liquid chlorine tank farm according to claim 1, characterized in that: the upstream ends of the first gas collecting branch pipe (31) and the second gas collecting branch pipe (32) are sealed.
3. The system for recovering and treating leaked gas of a liquid chlorine tank farm according to claim 1, characterized in that: the gas collecting holes (5) are divided into a plurality of groups and are uniformly distributed along the length directions of the first gas collecting branch pipes (31) and the second gas collecting branch pipes (32), and the gas collecting holes of each group are uniformly distributed along the circumferential directions of the first gas collecting branch pipes (31) and the second gas collecting branch pipes (32).
4. The system for recovering and treating leaked gas of a liquid chlorine tank farm according to claim 1, characterized in that: the exhaust branch pipe is characterized in that a safety valve (8) is arranged on the first exhaust branch pipe (41), and is positioned at the downstream of a connection point of the second exhaust branch pipe (42) and the first exhaust branch pipe (41), and the safety valve (8) is a normally open valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121741682.3U CN215782579U (en) | 2021-07-28 | 2021-07-28 | Liquid chlorine tank field leaks gaseous recovery processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121741682.3U CN215782579U (en) | 2021-07-28 | 2021-07-28 | Liquid chlorine tank field leaks gaseous recovery processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215782579U true CN215782579U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121741682.3U Active CN215782579U (en) | 2021-07-28 | 2021-07-28 | Liquid chlorine tank field leaks gaseous recovery processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215782579U (en) |
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2021
- 2021-07-28 CN CN202121741682.3U patent/CN215782579U/en active Active
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