JP6326843B2 - Ammonia storage equipment - Google Patents

Description

  The present invention relates to an ammonia storage facility.

  Conventionally, ammonia storage facilities including storage tanks for storing liquefied ammonia have been installed in factories that use ammonia. In such an ammonia storage facility, for example, as shown in Patent Document 1, in the unlikely event that ammonia leaks, a watering facility for preventing the diffusion of ammonia is installed. Ammonia dissolves quickly in water. For this reason, it can suppress that ammonia is discharge | released in air | atmosphere by sprinkling water with watering equipment and dissolving ammonia in water.

JP 2001-327978 A

  However, in reality, it is difficult to dissolve all ammonia in water, and a part is released into the atmosphere. Since ammonia released into the atmosphere diffuses rapidly, it is unlikely that it will float in the atmosphere for a long time at harmful concentrations. However, the less ammonia released into the atmosphere, the better.

  In the current ammonia storage facility, ammonia remaining in the storage tank or the like after watering is removed manually by the operator. However, since such work is to wear protective clothing, the burden on the worker is large.

  The present invention has been made in view of the above-described problems, and in an ammonia storage facility, the amount of ammonia released into the atmosphere at the time of ammonia leakage is further reduced, and the remaining ammonia is treated after being sprinkled. The purpose is to reduce the burden on the person.

  The present invention adopts the following configuration as means for solving the above-described problems.

  1st invention is an ammonia storage facility, Comprising: The storage tank which stores ammonia, The building which has the drainage pit which stores the said storage tank temporarily, and stores ammonia dissolved water temporarily in the underground, The said in the said building An ammonia detector that detects leakage of ammonia, a watering facility that sprays water into the building, an emergency discharge pump that discharges the ammonia-dissolved water from the drainage pit, and an emergency ventilation facility that ventilates the building And when the ammonia is detected by the ammonia detector, water is sprayed to the watering equipment and the emergency ventilation equipment is ventilated in the building, and the ammonia dissolved by the emergency discharge pump is dissolved. An ammonia detoxification facility that detoxifies the ammonia contained in water and the gas exhausted by the emergency ventilation facility; To adopt a configuration that obtain.

  2nd invention WHEREIN: In the said 1st invention, the said watering equipment is equipped with the watering nozzle for ceilings of the building provided in the ceiling of the said building, and the watering nozzle for storage in a storage tank provided in the said storage tank. adopt.

  According to a third aspect of the present invention, in the second aspect of the present invention, the storage tank discharge portion for guiding the ammonia-dissolved water generated in the storage tank to the drain pit, and the ammonia generated outside the storage tank and inside the building A structure is provided that includes a building discharge unit that guides the dissolved water to the drain pit.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, a configuration is provided in which a liquid level gauge for a storage tank that detects a liquid level in the storage tank and inputs a detection result to the control unit is provided. .

  5th invention employ | adopts the structure which is provided in the installation surface of the said storage tank of the said building in any one of the said 1st-4th invention, and is equipped with the liquid breakwater which surrounds the said storage tank seeing from upper direction.

  According to a sixth invention, in any one of the first to fifth inventions, a discharge pump that is installed in the building and that pumps ammonia stored in the storage tank during normal times to the outside of the building, and the discharge pump A configuration is adopted in which the ammonia-dissolved water generated in step 1 is provided with a discharge portion for a discharge pump that guides the water to the drain pit.

  A seventh aspect of the invention is the invention according to any one of the first to sixth aspects, further comprising a U-shaped pipe capable of ventilating the inside and outside of the building and connected to the watering facility, wherein the control unit includes the ammonia detector. When ammonia is detected by the above, a configuration is adopted in which the U-shaped pipe is sealed by supplying water from the watering facility to the U-shaped pipe.

  According to the present invention, since the storage tank is housed inside the building, even if ammonia leaks, the ammonia is prevented from coming out of the building, and the ammonia is leaked into the atmosphere when ammonia leaks. The amount of release can be further reduced. Further, according to the present invention, when ammonia is detected by the ammonia detector, the watering facility and the emergency ventilation facility are operated by the control unit, and the ammonia is sent to the abatement facility. For this reason, it is possible to send all of the leaked ammonia to the ammonia abatement facility without performing the work by the worker, and it is possible to reduce the burden on the worker in the treatment work of the residual ammonia after watering. Therefore, according to the present invention, in the ammonia storage facility, it is possible to further reduce the amount of ammonia released to the atmosphere at the time of ammonia leakage, and to reduce the burden on the operator in the processing of residual ammonia after watering. It becomes possible.

It is a schematic structure figure showing the whole ammonia storage equipment of one embodiment of the present invention. It is a control block diagram of the ammonia storage facility of one embodiment of the present invention.

  Hereinafter, an embodiment of an ammonia storage facility according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member in each drawing is appropriately changed in order to make each member a recognizable size.

  FIG. 1 is a schematic configuration diagram showing the entire ammonia storage facility of the present embodiment. FIG. 2 is a control block diagram of the ammonia storage facility of this embodiment. As shown in these drawings, the ammonia storage facility 1 of the present embodiment includes a storage tank 2, a building 3, an ammonia discharge unit 4, an outside air intake unit 5, an inside air discharge unit 6, a fan unit 7, Breakwater 8, ammonia detector 9, sprinkling facility 10, emergency discharge pump 11, storage tank discharge section 12, building discharge section 13, discharge pump discharge section 14, and storage tank liquid level A total meter 15, a drain pit liquid level meter 16, an emergency ventilation facility 17, an ammonia abatement facility 18, and a control unit 19 are provided.

  The storage tank 2 is a pressure vessel that stores liquefied ammonia, and is installed on the floor 3 a of the building 3. Although omitted in FIG. 1, the storage tank 2 is connected to a receiving facility connected to a tank truck or the like, and ammonia can be delivered to or from the tank truck or the like via the receiving facility. Has been. The building 3 is made of, for example, concrete. In addition to the floor 3a on which the above-described storage tank 2 is installed, a wall 3b covering the storage tank 2 and a drain pit 3c provided below the floor 3a (that is, underground) It has. Thus, in this embodiment, the storage tank 2 is accommodated in the building 3. The drainage pit 3c is a part for temporarily storing ammonia-dissolved water generated by dissolving ammonia in the sprinkled water when ammonia leaks. The drain pit 3 c is connected to the upper space in which the storage tank 2 is accommodated through the building discharge unit 13, and stores ammonia dissolved water that is generated in the upper space and flows through the building discharge unit 13.

  The ammonia discharge unit 4 discharges ammonia stored in the storage tank 2 toward an ammonia facility that is external equipment using ammonia, and includes a discharge pump 4a, a storage tank outlet valve 4b, and a pump outlet valve 4c. I have. The discharge pump 4a is installed in the building 3 and pressure-feeds the ammonia stored in the storage tank 2 to the outside of the building 3 under the control of the control unit 19 during normal times. The discharge pump 4a is installed in a region higher than the liquid barrier 8 and surrounded by the liquid barrier 8 when viewed from above. For this reason, the discharge pump 4a is not submerged even when ammonia-dissolved water is accumulated inside the breakwater 8 when ammonia leaks. Further, when ammonia leaks from the discharge pump 4 a, the ammonia falls into a region surrounded by the breakwater 8, so that ammonia does not leak to the outside of the breakwater 8.

  The storage tank outlet valve 4b is provided inside the building 3 and between the storage tank 2 and the discharge pump 4a. The storage tank outlet valve 4 b is a control valve that opens and closes the flow path between the storage tank 2 and the discharge pump 4 a under the control of the control unit 19. The pump outlet valve 4c is provided inside the building 3 and on the downstream side of the discharge pump 4a. The pump outlet valve 4 c is a control valve that opens and closes the flow path on the outlet side of the discharge pump 4 a under the control of the control unit 19.

  The outside air intake unit 5 is provided in the upper part of the building 3 and is a part that takes outside air into the inside from the outside of the building 3. The outside air intake unit 5 has a U-shaped pipe 5a that allows the inside and outside of the building 3 to be ventilated. The outside air can be taken into the building 3 through the U-shaped pipe 5a. The U-shaped pipe 5a is connected to the watering facility 10, and is sealed by supplying water under ammonia leakage under the control of the control unit 19.

  The inside air discharge unit 6 is provided on the opposite side of the outside air intake unit 5 in the upper part of the building 3 and is a part that exhausts the inside air from the inside of the building 3 to the outside. The inside air discharge unit 6 has a U-shaped pipe 6a that allows the inside and outside of the building 3 to be ventilated, and the inside air can be discharged from the building 3 through the U-shaped pipe 6a. The U-shaped pipe 6 a is connected to the watering facility 10 and is sealed by supplying water when ammonia leaks under the control of the control unit 19.

  The fan unit 7 is provided integrally with the inside air discharge unit 6 and includes a fan blade that pumps the inside air toward the outside of the building 3, a motor that rotationally drives the fan blade, and the like.

  The breakwater 8 is provided on the upper surface of the floor 3a, which is the installation surface of the storage tank 2 of the building 3, and is provided so as to surround the storage tank 2 when viewed from above. The breakwater 8 blocks the ammonia-dissolved water so that the ammonia-dissolved water generated by being sprinkled when ammonia leaks does not leak out of the building 3. In the present embodiment, the breakwater 8 is provided along the corner of the floor 3a of the building 3 as shown in FIG.

  The ammonia detector 9 is provided inside the building 3 and detects the presence or absence of ammonia in the building 3 outside the storage tank 2. When the ammonia detector 9 detects the presence of ammonia, the ammonia detector 9 inputs a signal indicating that ammonia is leaking to the control unit 19. That is, the ammonia detector 9 detects the leakage of ammonia in the building 3.

  The watering facility 10 is a facility for spraying water into the building 3 including the inside of the storage tank 2, and includes a ceiling watering nozzle 10a, a building watering valve 10b, a watering nozzle 10c in the storage tank, and a watering valve 10d. It has. The water spray nozzles 10 a for the ceiling of the building are a plurality of nozzles provided near the ceiling of the building 3, and spray the supplied water W toward the floor 3 a of the building 3. The building watering valve 10b is provided on the upstream side of the ceiling watering nozzle 10a of the building, and is a control valve that opens and closes a flow path connected to the ceiling watering nozzle 10a under the control of the control unit 19. is there. The water spray nozzles 10 c for the storage tank are a plurality of nozzles provided near the ceiling of the storage tank 2, and spray the supplied water W into the storage tank 2. The storage tank sprinkling valve 10d is provided on the upstream side of the storage tank spray nozzle 10c, and is a control valve that opens and closes the flow path connected to the storage tank spray nozzle 10c under the control of the control unit 19.

  In the present embodiment, it is assumed that there is a water source in a factory or the like where the ammonia storage facility 1 is installed, and water W is supplied from the water source to the watering facility 10. However, when the water source is not provided or when it is necessary to make it separate from other water sources, the watering facility 10 may have a water source independently.

  The emergency discharge pump 11 is installed outside the building 3 and connected to the drain pit 3c of the building 3. Under the control of the control unit 19, the ammonia-dissolved water stored in the drain pit 3c is converted into an ammonia abatement facility. It discharges toward 18.

  The storage tank discharge section 12 is provided at the bottom of the storage tank 2 and guides the ammonia-dissolved water generated by water spraying from the water spray nozzle 10 c in the storage tank to the drain pit 3 c of the building 3. A valve 12a is provided. The storage tank bottom discharge valve 12 a is a control valve that opens and closes a flow path connecting the storage tank 2 and the drain pit 3 c under the control of the control unit 19.

  The building discharge unit 13 is provided in a region of the floor 3 a of the building 3 and surrounded by the liquid barrier 8. The building discharge unit 13 guides the ammonia-dissolved water generated in the upper space of the building 3 outside the storage tank 2 or the ammonia-dissolved water leaked from the storage tank 2 to the drain pit 3c.

  The discharge pump discharge section 14 is connected to the ammonia discharge section 4 downstream of the storage tank outlet valve 4b and upstream of the discharge pump 4a, and is generated in the discharge pump 4a and accumulated in the ammonia discharge section 4. The ammonia-dissolved water is guided to the drain pit 3c. The discharge pump discharge portion 14 includes a pump discharge valve 14a. The pump discharge valve 14 a is a control valve that opens and closes a flow path connecting the ammonia discharge unit 4 and the drain pit 3 c under the control of the control unit 19.

  The storage tank level gauge 15 is connected to the storage tank 2, detects the liquid level of ammonia stored in the storage tank 2, and inputs the detection result to the control unit 19. The drain pit level gauge 16 is connected to the drain pit 3c, detects the level of the ammonia-dissolved water stored in the drain pit 3c, and inputs the detection result to the control unit 19.

  The emergency ventilator 17 ventilates the building with nitrogen N after water sprinkling by the water sprinkler 10 when ammonia leaks. The nitrogen supply valve 17a, the storage tank supply valve 17b, the building supply valve 17c, and ammonia A discharge section supply valve 17d, a storage tank upper discharge valve 17e, and a building discharge valve 17f are provided. The nitrogen supply valve 17a is a control valve for taking in nitrogen N from an external nitrogen source into the emergency ventilation equipment 17, and is provided upstream of the storage tank supply valve 17b, the building supply valve 17c, and the ammonia discharge part supply valve 17d. Has been placed.

  The supply valve 17b in the storage tank is provided on the upstream side of the water spray nozzle 10c in the storage tank and outside the building 3, and is a manual open / close valve. The in-storage tank supply valve 17b is opened when water is not supplied to the in-storage water sprinkling nozzle 10c and nitrogen N needs to be supplied into the storage tank 2. Nitrogen N is supplied into the storage tank 2 through the water spray nozzle 10c in the storage tank by opening the nitrogen supply valve 17a and further opening the water spray nozzle 10c in the storage tank.

  The building supply valve 17c is a flow path connected to the building 3 and is provided outside the building 3, and is a manual on-off valve. This building supply valve 17 c is opened when nitrogen N needs to be supplied into the building 3. Nitrogen N is supplied into the building 3 by opening the nitrogen supply valve 17a and opening the building supply valve 17c.

  The ammonia discharge part supply valve 17d is a flow path connected to the ammonia discharge part 4 and is provided outside the building 3, and is a manual on-off valve. The ammonia discharge part supply valve 17d is opened when nitrogen N needs to be supplied into the ammonia discharge part 4. Nitrogen N is supplied to the ammonia discharge part 4 by opening the nitrogen supply valve 17a and opening the ammonia discharge part supply valve 17d.

  The ammonia abatement equipment 18 is used for ammonia contained in the internal air (gas) of the building 3 exhausted through the building discharge valve 17f of the emergency ventilation equipment 17 and ammonia dissolved water supplied from the emergency exhaust pump 11. It removes ammonia contained.

  The control unit 19 performs overall control of the ammonia storage facility 1 of the present embodiment. For example, in the present embodiment, the control unit 19 causes the watering facility 10 to sprinkle water when the ammonia detector 9 detects ammonia and causes the emergency ventilation facility 17 to ventilate the building 3. Moreover, the control part 19 supplies the water W from the sprinkling equipment 10 to the U-shaped piping 5a and the U-shaped piping 6a when ammonia is detected by the ammonia detector 9, so that the U-shaped piping 5a and the U-shaped piping 6a are supplied. Seal.

  Next, the operation | movement at the time of ammonia leakage of such the ammonia storage equipment 1 of this embodiment is demonstrated.

  When ammonia is detected by the ammonia detector 9, the control unit 19 stops the discharge pump 4 a and closes the pump outlet valve 4 c, and acquires the liquid level of ammonia in the storage tank 2 by the storage tank level gauge 15. Then, it is determined whether or not the ammonia in the storage tank 2 has decreased.

  When it is determined that the ammonia in the storage tank 2 is decreasing, the control unit 19 determines that ammonia is leaking from the storage tank 2, opens the storage tank bottom discharge valve 12 a and the pump discharge valve 14 a, and stores the storage tank 2. The ammonia stored in the storage tank is discharged from the storage tank discharge section 12 to the drain pit 3c, and the ammonia remaining in the ammonia discharge section 4 is discharged from the discharge pump discharge section 14 to the drain pit 3c.

  Moreover, the control part 19 opens the building watering valve 10b and the storage tank watering valve 10d, and makes the watering equipment 10 water from the watering nozzle 10a for ceiling of the building, and the watering nozzle 10c for water in a storage tank. As a result, the ammonia remaining in the building 3 and the ammonia remaining in the storage tank 2 are dissolved in the water W to become ammonia-dissolved water. This ammonia-dissolved water is discharged from the storage discharge section 12, the building discharge section 13 and the discharge. It flows into the drainage pit 3c through the pump discharge part 14. In addition, the U-shaped pipe 5a and the U-shaped pipe 6a are sealed by opening the building watering valve 10b.

  Thereafter, the control unit 19 stops the watering and then opens the nitrogen supply valve 17a and the storage tank upper discharge valve 17e. Here, since ammonia leaks from the storage tank 2, the storage tank supply valve 17b, the building supply valve 17c, the ammonia discharge part supply valve 17d, and the building discharge valve 17f are opened by the operator. Thereby, nitrogen N is supplied to the inside of the storage tank 2 and the inside of the building 3, and the inside of the storage tank 2 and the inside of the building 3 are purged. Moreover, the control part 19 drives the emergency discharge pump 11 based on the detection result of the drain pit level gauge 16, and pumps up the ammonia dissolved water accumulated in the drain pit 3c.

  On the other hand, if the control unit 19 determines that the ammonia in the storage tank 2 has not decreased, it determines that ammonia has not leaked from the storage tank 2 and opens the pump discharge valve 14a and closes the storage tank outlet valve 4b. Then, the ammonia remaining in the ammonia discharge part 4 is discharged from the discharge part 14 for the discharge pump to the drain pit 3c without flowing the ammonia stored in the storage tank 2.

  Moreover, the control part 19 opens the building watering valve 10b, closing the storage tank watering valve 10d, and makes the watering equipment 10 water from the ceiling watering nozzle 10a. As a result, the ammonia remaining in the building 3 is dissolved in the water W to become ammonia-dissolved water, and this ammonia-dissolved water flows into the drain pit 3c through the building discharge portion 13 and the discharge pump discharge portion 14. In addition, the U-shaped pipe 5a and the U-shaped pipe 6a are sealed by opening the building watering valve 10b.

  Thereafter, the control unit 19 stops the watering and then opens the nitrogen supply valve 17a and the storage tank upper discharge valve 17e. Here, since ammonia does not leak from the storage tank 2, the building supply valve 17c, the ammonia discharge part supply valve 17d, and the building discharge valve 17f are opened by the operator. Thereby, nitrogen N is supplied to the inside of the building 3 and the inside of the building 3 is purged. Moreover, the control part 19 drives the emergency discharge pump 11 based on the detection result of the drain pit level gauge 16, and pumps up the ammonia dissolved water accumulated in the drain pit 3c.

  According to the ammonia storage facility 1 of the present embodiment as described above, since the storage tank 2 is accommodated inside the building 3, even if ammonia leaks, the ammonia can be discharged outside the building 3. The amount of ammonia released into the atmosphere when ammonia leaks can be further reduced. Moreover, according to the ammonia storage facility 1 of the present embodiment, when ammonia is detected by the ammonia detector 9, the water spraying facility 10 and the emergency ventilation facility 17 are operated by the control unit 19, and the ammonia is removed from the ammonia. It is sent to the facility 18. For this reason, it is possible to send all of the leaked ammonia to the ammonia abatement equipment 18 without performing the work by the worker, and it is possible to reduce the burden on the worker in the treatment work of the residual ammonia after sprinkling. . Therefore, according to the ammonia storage facility 1 of the present embodiment, it is possible to further reduce the amount of ammonia released to the atmosphere when ammonia leaks, and to reduce the burden on the worker in the treatment of residual ammonia after watering. Is possible.

  Moreover, in the ammonia storage facility 1 of the present embodiment, the watering facility 10 includes a water spray nozzle 10 a for the ceiling provided on the ceiling of the building 3 and a water spray nozzle 10 c for the storage tank provided in the storage tank 2. For this reason, water can be sprayed into the interior of the building 3 and the interior of the storage tank 2, and ammonia can be more reliably dissolved in water. Moreover, it is possible to prevent the ammonia in the storage tank 2 from being unusable when ammonia leaks from a location other than the storage tank 2 by opening only the water spray nozzle 10c in the storage tank.

  Further, in the ammonia storage facility 1 of the present embodiment, the storage tank discharge portion 12 that guides the ammonia-dissolved water generated in the storage tank 2 to the drain pit 3c, and the ammonia dissolution generated outside the storage tank 2 and inside the building 3 A building discharge part 13 for guiding water to the drain pit 3c and a discharge pump discharge part 14 for guiding the ammonia-dissolved water generated by the discharge pump 4a to the drain pit 3c are provided. For this reason, the ammonia-dissolved water can be reliably guided to the drain pit 3c.

  Further, the ammonia storage facility 1 of the present embodiment includes a storage tank level gauge 15 that detects the liquid level in the storage tank 2 and inputs the detection result to the control unit 19. For this reason, it can be determined whether or not the ammonia leak is in the storage tank 2.

  Further, the ammonia storage facility 1 of the present embodiment includes a liquid breakwater 8 that is provided on the installation surface of the storage tank 2 of the building 3 and surrounds the storage tank 2 when viewed from above. For this reason, even if it is a case where the liquefied ammonia leaks from the storage tank 2, it can prevent more reliably that this ammonia leaks out of the building 3.

  Moreover, in the ammonia storage facility 1 of this embodiment, the inside and outside of the building 3 can be ventilated, and the U-shaped piping 5a and the U-shaped piping 6a connected to the watering facility 10 are provided. When ammonia is detected by 9, the U-shaped pipe 5 a and the U-shaped pipe 6 a are sealed by supplying water from the sprinkler 10 to the U-shaped pipe 5 a and the U-shaped pipe 6 a. For this reason, ammonia can be prevented from leaking out of the building 3 from the U-shaped pipe 5a and the U-shaped pipe 6a.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the configuration in which purging with nitrogen N has been described. However, the present invention is not limited to this, and it is possible to adopt a configuration in which purging is performed using air.

  DESCRIPTION OF SYMBOLS 1 ... Ammonia storage equipment, 2 ... Storage tank, 3 ... Building, 3a ... Floor part, 3b ... Wall part, 3c ... Drainage pit, 4 ... Ammonia discharge part, 4a ... Discharge pump, 4b ... ... Storage tank outlet valve, 4c ... Pump outlet valve, 5 ... Outside air intake part, 5a ... U-shaped pipe, 6 ... Inside air discharge part, 6a ... U-shaped pipe, 7 ... Fan unit, 8 ... Breakwater, 9 ... Ammonia detector, 10 ... Watering equipment, 10a ... Water spray nozzle for building ceiling, 10b ... Water spray valve for building, 10c ... Water spray nozzle for storage tank, 10d ... Water spray valve for storage tank, DESCRIPTION OF SYMBOLS 11 ... Emergency discharge pump, 12 ... Storage tank discharge part, 12a ... Storage tank bottom discharge valve, 13 ... Building discharge part, 14 ... Discharge pump discharge part, 14a ... Pump discharge valve, 15 ... ... Liquid level gauge for storage tanks, 16 ... Liquid level gauge for drainage pits, 17 ... Emergency ventilation equipment, 1 a ... Nitrogen supply valve, 17b ... In-storage tank supply valve, 17c ... In-building supply valve, 17d ... Ammonia discharge part supply valve, 17e ... Storage tank upper discharge valve, 17f ... Building discharge valve, 18 ... Ammonia abatement equipment, 19 ... control unit, N ... nitrogen, W ... water

Claims (6)

A storage tank for ammonia;
While containing the storage tank, a building having a drainage pit for temporarily storing ammonia-dissolved water underground,
An ammonia detector for detecting leakage of ammonia in the building;
Watering equipment for watering the building;
An emergency discharge pump for discharging the ammonia-dissolved water from the drain pit;
Emergency ventilation equipment for ventilating the building;
A control unit that causes the watering facility to sprinkle when ammonia is detected by the ammonia detector and causes the emergency ventilation facility to ventilate the building;
An ammonia abatement facility for detoxifying the ammonia dissolved in the ammonia-dissolved water discharged by the emergency discharge pump and the gas exhausted by the emergency ventilation facility , and
The watering facility is
A water spray nozzle for the ceiling of the building provided on the ceiling of the building;
A water spray nozzle for storage in the storage tank;
Ammonia storage facility, characterized in that it comprises a. A storage tank discharge section for guiding the ammonia-dissolved water generated in the storage tank to the drain pit;
Ammonia storage facility according to claim 1, characterized in that it comprises a building for discharging portion for guiding the ammonia dissolved water generated inside the external and of the building of the reservoir to the drainage pit. Ammonia storage facility according to claim 1, wherein further comprising a reservoir for liquid level meter to be input to the control unit a detection result detects the liquid level in the storage tank. The ammonia storage facility according to any one of claims 1 to 3, further comprising a liquid breakwater provided on an installation surface of the storage tank of the building and surrounding the storage tank as viewed from above. A discharge pump which is installed in the building and pumps ammonia stored in the storage tank at normal times to the outside of the building;
The ammonia storage facility according to any one of claims 1 to 4 , further comprising: a discharge unit for a discharge pump that guides the ammonia-dissolved water generated by the discharge pump to the drain pit. A U-shaped pipe that allows ventilation inside and outside the building and connected to the watering facility is provided, and the control unit supplies water to the U-shaped pipe from the watering facility when ammonia is detected by the ammonia detector. The ammonia storage facility according to any one of claims 1 to 5 , wherein the U-shaped pipe is sealed by supplying the water.

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