CN215693124U - Chlorine leakage treatment system in liquid chlorine storage place - Google Patents

Abstract

The utility model discloses a chlorine leakage treatment system in a liquid chlorine storage place, which comprises a first alkali liquor circulating tank; the liquid outlet of the first alkali liquor circulating tank is communicated with the liquid inlet of a first circulating cooler, and the first circulating cooler is communicated with the chlorine absorption tower; the chlorine absorption tower is communicated with the first alkali liquor circulating tank; the chlorine detector is electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the accident fan. The advantages are that: when the content of chlorine detected by the chlorine detector is greater than a set upper limit value, indicating that the chlorine leaks, feeding a signal back to the controller by the chlorine detector, and controlling the accident fan to be opened by the controller to pump negative pressure, so that the leaked chlorine in a chlorine storage tank workshop, a steel bottle filling workshop or a tank car filling workshop is conveniently pumped into a corresponding negative pressure pipeline from an air inlet and sent into a chlorine absorption tower to be treated by alkali liquor; the treated gas is emptied under the action of the emptying fan, so that the environmental pollution and potential safety hazard are avoided.

Description

Chlorine leakage treatment system in liquid chlorine storage place

The technical field is as follows:

the utility model relates to the technical field of liquid chlorine production, in particular to a chlorine leakage treatment system in a liquid chlorine storage place.

Background art:

industrially, a part of chlorine generated by brine electrolysis is used for preparing hydrogen chloride, and the rest of chlorine is sent to a liquid chlorine device for liquefaction and sale; the storage places of the liquid chlorine comprise a liquid chlorine storage tank workshop, a steel bottle filling workshop and a tank car filling workshop, and when the liquid chlorine accident occurs due to leakage, volatilized chlorine can be emptied from the workshops, so that the environmental pollution is caused, and the potential safety hazard exists; and no on-site monitoring and alarming device is arranged in each factory building, and when leakage occurs, the leakage cannot be found and processed in time.

The utility model has the following contents:

the utility model aims to provide a chlorine leakage treatment system in a liquid chlorine storage place, which can timely find leaked chlorine and timely and effectively treat the leaked chlorine so as to avoid potential safety hazards.

The utility model is implemented by the following technical scheme: a chlorine leakage treatment system in a liquid chlorine storage place comprises a first alkali liquor circulating tank and a first circulating cooler; a first negative pressure pipeline is arranged in the liquid chlorine storage tank factory building, a second negative pressure pipeline is arranged in the steel bottle charging factory building, a third negative pressure pipeline is arranged in the tank car charging factory building, and air inlets are formed in the first negative pressure pipeline, the second negative pressure pipeline and the third negative pressure pipeline; the first negative pressure pipeline, the second negative pressure pipeline and the third negative pressure pipeline are all communicated with an inlet of an accident fan; the outlet of the accident fan is communicated with the air inlet at the bottom of the chlorine absorption tower, and the air outlet at the top of the chlorine absorption tower is communicated with the evacuation fan; a liquid outlet of the first alkali liquor circulating tank is communicated with a liquid inlet of the first circulating cooler through a first circulating pump, a liquid outlet of the first circulating cooler is communicated with a liquid inlet of the chlorine absorption tower, a water inlet of the first circulating cooler is communicated with a circulating cooling water inlet pipe, and a water outlet of the first circulating cooler is communicated with a circulating cooling water return pipe; the liquid outlet of the chlorine absorption tower is communicated with the liquid return port of the first alkali liquor circulating tank; the chlorine gas detector has all been installed in the liquid chlorine storage tank factory building the steel bottle fills the factory building with the tank wagon fills and fills in the factory building, the chlorine gas detector is connected with the input electricity of controller, the output of controller with the accident fan electricity is connected.

Further, the tail gas absorption tower, a second alkali liquor circulating tank and a second circulating cooler are further included; an exhaust port at the top of the chlorine absorption tower is communicated with an air inlet at the bottom of the tail gas absorption tower, and an exhaust port at the top of the tail gas absorption tower is communicated with the emptying fan; a liquid outlet of the second alkali liquor circulation tank is communicated with a liquid inlet of a second circulation cooler through a second circulation pump, a liquid outlet of the second circulation cooler is communicated with a liquid inlet of the tail gas absorption tower, a water inlet of the second circulation cooler is communicated with a circulating cooling water inlet pipe, and a water outlet of the second circulation cooler is communicated with a circulating cooling water return pipe; and a liquid outlet of the tail gas absorption tower is communicated with a liquid return port of the second alkali liquor circulating tank.

Further, the liquid chlorine storage tank factory building the steel bottle fills the factory building with all installed accident alarm in the tank wagon fills the factory building, the output of controller with the accident alarm electricity is connected.

Further, all be provided with the spray header in the liquid chlorine storage tank factory building, steel bottle fills the factory building and the tank wagon fills the factory building, the spray header facial make-up is equipped with the motorised valve, the output of controller with the motorised valve electricity is connected.

Further, the liquid chlorine storage tank factory building the steel bottle fills the factory building and the tank wagon fills the subaerial sump pit that all is equipped with of factory building, the sump pit and accident liquid recovery pond intercommunication.

The utility model has the advantages that: the chlorine in the factory building is detected in real time through the chlorine detector, signals are fed back to the controller in real time, when the content of the chlorine detected by the chlorine detector is larger than a set upper limit value, the chlorine is indicated to be leaked, the chlorine detector feeds back the signals to the controller, the controller controls the accident fan to be started to pump negative pressure, under the action of the negative pressure pumped by the accident fan, leaked chlorine in a chlorine storage tank factory building, a steel bottle filling factory building or a tank car filling factory building is conveniently pumped into a corresponding negative pressure pipeline from an air inlet, the chlorine is sent into a chlorine absorption tower, and the chlorine is treated through alkali liquor; the treated gas is evacuated under the action of an evacuation fan, so that environmental pollution and potential safety hazards are avoided; in order to ensure the dechlorination effect, the alkali liquor pumped by the first circulating pump is firstly sent into the first circulating cooler to exchange heat with circulating cooling water, and is sent into the chlorine absorption tower to dechlorination after being cooled by the circulating cooling water; improve the efficiency of chlorine removal.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of a control circuit according to the present invention.

The parts in the drawings are numbered as follows: the device comprises a liquid chlorine storage tank plant 1, a steel bottle filling plant 2, a tank car filling plant 3, a first alkali liquor circulating tank 4, a first circulating cooler 5, a first negative pressure pipeline 6, a second negative pressure pipeline 7, a third negative pressure pipeline 8, an accident fan 9, a chlorine absorption tower 10, an emptying fan 11, a first circulating pump 12, a circulating cooling water inlet pipe 13, a circulating cooling water return pipe 14, a chlorine detector 15, a controller 16, a tail gas absorption tower 17, a second alkali liquor circulating tank 18, a second circulating cooler 19, a second circulating pump 20, an accident alarm 21, a spray water pipe 22, an electric valve 23, water collection 24 and an accident liquor recovery pool 25.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in FIGS. 1 and 2, the present embodiment provides a chlorine leakage treatment system in a liquid chlorine storage site, which comprises a first lye circulation tank 4 and a first circulation cooler 5; chlorine detectors 15 are respectively arranged in the liquid chlorine storage tank workshop 1, the steel cylinder filling workshop 2 and the tank car filling workshop 3, the chlorine detectors 15 are electrically connected with the input end of a controller 16, and the output end of the controller 16 is electrically connected with an accident fan 9; a first negative pressure pipeline 6 is arranged in the liquid chlorine storage tank workshop 1, a second negative pressure pipeline 7 is arranged in the steel cylinder charging workshop 2, and a third negative pressure pipeline 8 is arranged in the tank car charging workshop 3; the first negative pressure pipeline 6, the second negative pressure pipeline 7 and the third negative pressure pipeline 8 are all provided with air inlet holes; the first negative pressure pipeline 6, the second negative pressure pipeline 7 and the third negative pressure pipeline 8 are all communicated with an inlet of an accident blower 9; the outlet of the accident fan 9 is communicated with the air inlet at the bottom of the chlorine absorption tower 10, and the air outlet at the top of the chlorine absorption tower 10 is communicated with the evacuation fan 11; the chlorine in the factory building is detected in real time through the chlorine detector 15, signals are fed back to the controller 16 in real time, when the content of the chlorine detected by the chlorine detector 15 is larger than a set upper limit value, the chlorine is indicated to be leaked, the chlorine detector 15 feeds back the signals to the controller 16, the controller 16 controls the accident fan 9 to be started to pump negative pressure, under the action of the negative pressure pumped by the accident fan 9, the leaked chlorine in the chlorine storage tank factory building, the steel bottle filling factory building 2 or the tank car filling factory building 3 is conveniently pumped into a corresponding negative pressure pipeline from an air inlet, the chlorine is sent into the chlorine absorption tower 10, and the chlorine is treated through alkali liquor; the treated gas is emptied under the action of the emptying fan 11, so that the environmental pollution and potential safety hazard are avoided.

A liquid outlet of the first alkali liquor circulating tank 4 is communicated with a liquid inlet of a first circulating cooler 5 through a first circulating pump 12, the first circulating cooler 5 in the embodiment is a plate heat exchanger, a liquid outlet of the first circulating cooler 5 is communicated with a liquid inlet of a chlorine absorption tower 10, a water inlet of the first circulating cooler 5 is communicated with a circulating cooling water inlet pipe 13, and a water outlet of the first circulating cooler 5 is communicated with a circulating cooling water return pipe 14; a liquid outlet of the chlorine absorption tower 10 is communicated with a liquid return port of the first alkali liquor circulating tank 4; the alkali liquor used for processing chlorine is stored in the first alkali liquor circulating tank 4, and because the alkali liquor can generate heat in the circulating reaction process, in order to ensure the dechlorination effect, the alkali liquor extracted by the first circulating pump 12 is firstly sent into the first circulating cooler 5 to exchange heat with circulating cooling water, and is sent into the chlorine absorption tower 10 to dechlorinate after being cooled by the circulating cooling water.

The tail gas absorption tower 17, a second alkali liquor circulating tank 18 and a second circulating cooler 19 are further included; the second circulation cooler 19 of this embodiment is a plate heat exchanger, the exhaust port at the top of the chlorine absorption tower 10 is communicated with the air inlet at the bottom of the tail gas absorption tower 17, and the exhaust port at the top of the tail gas absorption tower 17 is communicated with the evacuation fan 11; a liquid outlet of the second alkali liquor circulating tank 18 is communicated with a liquid inlet of a second circulating cooler 19 through a second circulating pump 20, a liquid outlet of the second circulating cooler 19 is communicated with a liquid inlet of the tail gas absorption tower 17, a water inlet of the second circulating cooler 19 is communicated with a circulating cooling water inlet pipe 13, and a water outlet of the second circulating cooler 19 is communicated with a circulating cooling water return pipe 14; a liquid outlet of the tail gas absorption tower 17 is communicated with a liquid return port of the second alkali liquor circulating tank 18; in order to ensure that the leaked chlorine gas is treated more thoroughly, the tail gas absorption tower 17 is additionally arranged in the embodiment, under the action of the emptying fan 11, the gas treated by the chlorine gas absorption tower 10 is sucked into the tail gas absorption tower 17 again, and the alkali liquor extracted from the second alkali liquor circulating tank 18 through the second circulating pump 20 is firstly cooled by the second circulating cooler 19 and then sent into the tail gas absorption tower 17 for dechlorination, so that the purpose of accident chlorine treatment is achieved.

Accident alarms 21 are respectively arranged in the liquid chlorine storage tank workshop 1, the steel cylinder filling workshop 2 and the tank car filling workshop 3, and the output end of the controller 16 is electrically connected with the accident alarms 21; when the chlorine gas detector 15 detects that the chlorine gas leaks and feeds back the chlorine gas to the controller 16, the controller 16 controls the accident alarm 21 at the corresponding position to alarm, and staff are reminded of the occurrence of a leakage accident in time; spray water pipes 22 are arranged in the liquid chlorine storage tank workshop 1, the steel cylinder filling workshop 2 and the tank car filling workshop 3, an electric valve 23 is arranged on each spray water pipe 22, and the output end of the controller 16 is electrically connected with the electric valve 23; when a chlorine leakage accident occurs, the controller 16 controls the accident fan 9 to be started, and simultaneously, the controller 16 controls the electric valve 23 to be opened, spray water is introduced through the spray water pipe 22 and sprayed into the liquid chlorine storage tank workshop 1, so that leaked chlorine is absorbed, and the treatment efficiency is improved; the ground of the liquid chlorine storage tank factory building 1, the steel bottle filling factory building 2 and the tank car filling factory building 3 are all provided with a water collecting pit 24, and the water collecting pit 24 is communicated with an accident liquid recovery pool 25; the liquid produced after spraying flows into the sump 24 and eventually collects in the accident liquid recovery tank 25.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

1. A chlorine leakage treatment system in a liquid chlorine storage place is characterized by comprising a first alkali liquor circulating tank and a first circulating cooler; a first negative pressure pipeline is arranged in the liquid chlorine storage tank factory building, a second negative pressure pipeline is arranged in the steel bottle charging factory building, a third negative pressure pipeline is arranged in the tank car charging factory building, and air inlets are formed in the first negative pressure pipeline, the second negative pressure pipeline and the third negative pressure pipeline; the first negative pressure pipeline, the second negative pressure pipeline and the third negative pressure pipeline are all communicated with an inlet of an accident fan; the outlet of the accident fan is communicated with the air inlet at the bottom of the chlorine absorption tower, and the air outlet at the top of the chlorine absorption tower is communicated with the evacuation fan;

a liquid outlet of the first alkali liquor circulating tank is communicated with a liquid inlet of the first circulating cooler through a first circulating pump, a liquid outlet of the first circulating cooler is communicated with a liquid inlet of the chlorine absorption tower, a water inlet of the first circulating cooler is communicated with a circulating cooling water inlet pipe, and a water outlet of the first circulating cooler is communicated with a circulating cooling water return pipe; the liquid outlet of the chlorine absorption tower is communicated with the liquid return port of the first alkali liquor circulating tank;

the chlorine gas detector has all been installed in the liquid chlorine storage tank factory building the steel bottle fills the factory building with the tank wagon fills and fills in the factory building, the chlorine gas detector is connected with the input electricity of controller, the output of controller with the accident fan electricity is connected.

2. The system of claim 1, further comprising a tail gas absorption tower, a second caustic recycle tank, and a second recycle cooler; an exhaust port at the top of the chlorine absorption tower is communicated with an air inlet at the bottom of the tail gas absorption tower, and an exhaust port at the top of the tail gas absorption tower is communicated with the emptying fan; a liquid outlet of the second alkali liquor circulation tank is communicated with a liquid inlet of a second circulation cooler through a second circulation pump, a liquid outlet of the second circulation cooler is communicated with a liquid inlet of the tail gas absorption tower, a water inlet of the second circulation cooler is communicated with a circulating cooling water inlet pipe, and a water outlet of the second circulation cooler is communicated with a circulating cooling water return pipe; and a liquid outlet of the tail gas absorption tower is communicated with a liquid return port of the second alkali liquor circulating tank.

3. The system of claim 1, wherein accident alarms are installed in the liquefied chlorine storage tank factory building, the steel cylinder filling factory building and the tank car filling factory building, and an output end of the controller is electrically connected to the accident alarms.

4. The system of any one of claims 1 to 3, wherein spray pipes are disposed in the liquefied chlorine storage factory, the steel cylinder filling factory and the tank car filling factory, the spray pipes are provided with electric valves, and the output end of the controller is electrically connected to the electric valves.

5. The system of claim 4, wherein a sump is provided above the ground of the liquid chlorine storage plant, the steel cylinder filling plant and the tank car filling plant, and the sump communicates with the emergency liquid recovery tank.

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