Carbon disulfide discharging system

Abstract

The utility model belongs to a discharging system, and particularly relates to a carbon disulfide discharging system. Comprising a storage tank and a jacket arranged on the outer side of the storage tank, the storage tank is located in an underground water pool, the height of water stored in the underground water pool is larger than that of the storage tank, the storage tank is provided with a temperature transmitter, a first liquid level transmitter, an electrostatic grounding controller and a pressure transmitter, the storage tank is provided with a feeding pipeline, the feeding pipeline is provided with a feeding stop valve, and the feeding stop valve is provided with a second liquid level transmitter. The storage tank is connected with the metering tank through a discharging pipeline, a pneumatic diaphragm pump is arranged on the discharging pipeline, a cold tracing pipe sleeve is arranged outside the discharging pipeline, and a nitrogen sealing system is arranged at the top of the storage tank. The cold tracing pipe sleeve is arranged outside the discharging pipeline, so that carbon disulfide which leaves the storage tank with lower temperature can be continuously kept at low temperature, the temperature of the carbon disulfide entering the pneumatic diaphragm pump is reduced, and the risk of leakage and combustion of the carbon disulfide is reduced. When the pneumatic diaphragm pump transports flammable and explosive liquid, compared with other types of pumps such as an electric pump, the risk of generating spark explosion is low.

Description

Technical Field

[0001] The utility model belongs to a discharging system, in particular to a carbon disulfide discharging system. Background Art

[0002] Carbon disulfide is a colorless or pale yellow transparent liquid with a low flash point and is highly flammable. Its explosion limit is 1.5% to 50% and its boiling point is 46.2°C. The storage temperature of carbon disulfide should be maintained between 5°C and 20°C. Conventional carbon disulfide is sealed with water, because water and carbon disulfide are immiscible and have a lower density than carbon disulfide. However, in cold winter weather, water on carbon disulfide easily freezes, affecting its use and causing some contamination. However, if the water seal is replaced with a nitrogen seal, a transfer pump is required for discharge. The transfer pump transfers carbon disulfide from the storage tank to the metering tank through a connecting pipe. However, carbon disulfide is a flammable liquid, and the transfer pump is a power device. During the transfer process, especially in hot summer weather, the transfer pump is prone to frictional heat generation, which can lead to the risk of carbon disulfide leakage and flammability. This makes the carbon disulfide transfer process less safe. At the same time, the carbon disulfide discharge device lacks automated safety control devices. Utility Model Content

[0003] The utility model provides a carbon disulfide discharging system to solve the problem that a delivery pump used for discharging nitrogen-sealed carbon disulfide storage system is prone to frictional heat generation, resulting in leakage and flammability of carbon disulfide.

[0004] In order to solve the above problems, the technical solution of the present utility model is:

[0005] The carbon disulfide discharging system described in the present invention includes a storage tank and a jacket arranged on the outside of the storage tank. The storage tank is located in an underground water pool, and the water storage height of the underground water pool is higher than the height of the storage tank. The bottom of one side of the jacket is connected to a cooling water inlet pipe, and the top of one side is connected to a cooling water outlet pipe. A cooling water regulating valve is provided on the cooling water inlet pipe. The storage tank is provided with a temperature transmitter, a first liquid level transmitter, an electrostatic grounding controller and a pressure transmitter. The storage tank is provided with a feed pipeline, and a feed cut-off valve is provided on the feed pipeline. The storage tank is connected to a metering tank through a discharge pipeline, and a pneumatic diaphragm pump is provided on the discharge pipeline. A cooling pipe sleeve is provided outside the discharge pipeline, and a nitrogen sealing system is provided on the top of the storage tank. A second liquid level transmitter is provided on the metering tank, and the output end of the second liquid level transmitter is electrically connected to the control end of the pneumatic diaphragm pump, the output end of the first liquid level transmitter is electrically connected to the control end of the feed cut-off valve, and the output end of the electrostatic grounding controller is electrically connected to the control end of the pneumatic diaphragm pump.

[0006] When the static electricity index monitored by the static grounding controller is unqualified, the pneumatic diaphragm pump cannot be started, which improves the safety of the discharging process.

[0007] Through the interlocking of the first liquid level transmitter and the feed shut-off valve, the maximum liquid level in the storage tank can be controlled to avoid safety accidents caused by excessive pressure.

[0008] Through the interlocking of the second liquid level transmitter and the pneumatic diaphragm pump, the maximum liquid level in the metering tank can be controlled to avoid safety accidents caused by excessive pressure.

[0009] This utility model installs a cooling sleeve outside the discharge pipeline, ensuring that the carbon disulfide remains cool after leaving the cooler storage tank, lowering its temperature upon entering the pneumatic diaphragm pump, thereby reducing the risk of leakage and combustion. Furthermore, this utility model replaces conventional hydraulic and electric pumps with pneumatic diaphragm pumps. Compared to other types of pumps, such as electric pumps, pneumatic diaphragm pumps have a lower risk of spark explosions when transporting flammable and explosive liquids. Pneumatic diaphragm pumps have excellent self-priming properties and can draw liquids from a certain height without priming. This feature simplifies the operation process and reduces the risk of sparks caused by improper operation.

[0010] The pressure transmitter is electrically connected to the central control system to facilitate real-time monitoring of the nitrogen blanketing pressure in the storage tank.

[0011] Furthermore, the output end of the temperature transmitter is electrically connected to the control end of the cooling water regulating valve.

[0012] The temperature of carbon disulfide in the storage tank is controlled between 10-20℃ through a temperature transmitter. When the temperature is lower than 10℃, the cooling water regulating valve adjusts the flow rate of the cooling water to slow down. When the temperature is higher than 20℃, the cooling water regulating valve adjusts the flow rate of the cooling water to speed up.

[0013] Furthermore, a gas detector is provided near the storage tank.

[0014] Once carbon disulfide leaks, the cyclohexylamine combustible gas detector will immediately alarm and remind the operator to take technical emergency measures.

[0015] Furthermore, the storage tank is provided with a liquid level gauge.

[0016] The setting of the liquid level meter can facilitate real-time observation of the liquid level of carbon disulfide in the storage tank.

[0017] Furthermore, the nitrogen sealing system includes a nitrogen pipeline and a discharge pipeline located at the top of the storage tank. The nitrogen pipeline is provided with a self-operated nitrogen sealing valve, the discharge pipeline is provided with a breathing valve with a flame arrester, and the discharge pipeline is connected to the exhaust gas treatment device.

[0018] Using nitrogen seal instead of water seal can prevent the water seal from freezing in cold weather, which would affect its use. At the same time, it can isolate the material from the air and prevent sparks from entering.

[0019] The beneficial effects of the utility model are as follows:

[0020] (1) The utility model provides a cooling pipe sleeve outside the discharge pipeline, so that the carbon disulfide can continue to maintain a low temperature after leaving the storage tank with a lower temperature, thereby reducing its temperature when entering the pneumatic diaphragm pump, thereby reducing its risk of leakage and combustion.

[0021] (2) This utility model replaces conventional hydraulic pumps and electric-driven pumps with pneumatic diaphragm pumps. Compared to other types of pumps, such as electric pumps, pneumatic diaphragm pumps have a lower risk of spark explosions when transporting flammable and explosive liquids. Pneumatic diaphragm pumps have excellent self-priming properties and can draw liquids from a certain height without priming. This feature simplifies the operation process and reduces the risk of sparks caused by improper operation.

[0022] (3) The present invention replaces the water seal with a nitrogen seal, which can prevent the water seal from freezing in cold weather, affecting its use, eliminating water pollution, reducing environmental protection costs, and at the same time achieving isolation between materials and air to prevent sparks from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic structural diagram of the carbon disulfide discharging system of the present invention;

[0025] In the figure: 1. Storage tank; 2. Jacket; 201. Cooling water inlet pipe; 202. Cooling water regulating valve; 203. Cooling water outlet pipe; 3. Underground water tank; 4. First liquid level transmitter; 5. Temperature transmitter; 6. Liquid level gauge; 7. Pressure transmitter; 8. Feed pipeline; 801. Feed shut-off valve; 9. Nitrogen pipeline; 901. Self-operated nitrogen sealing valve; 10. Release pipeline; 1001. Breathing valve with flame arrester; 11. Exhaust gas treatment device; 12. Discharge pipeline; 1201. Cooling pipe sleeve; 13. Pneumatic diaphragm pump; 14. Measuring tank; 1401. Second liquid level transmitter; 15. Electrostatic grounding controller; 16. Gas detector. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the embodiments.

[0027] Example 1

[0028] like Figure 1As shown, the carbon disulfide discharging system includes a storage tank 1 and a jacket 2 arranged on the outside of the storage tank 1. The storage tank 1 is located in an underground water pool 3, and the water storage height of the underground water pool 3 is higher than the height of the storage tank 1. The bottom of one side of the jacket 2 is connected to a cooling water inlet pipe 201, and the top of one side is connected to a cooling water outlet pipe 203. The cooling water inlet pipe 201 is provided with a cooling water regulating valve 202. The storage tank 1 is provided with a temperature transmitter 5, a first liquid level transmitter 4, an electrostatic grounding controller 15 and a pressure transmitter 7. The storage tank 1 is provided with a feed pipeline 8, and the feed pipeline 8 is provided with an inlet The feed shut-off valve 801 is provided, and the storage tank 1 is connected to the metering tank 14 through the discharge pipeline 12. The discharge pipeline 12 is provided with a pneumatic diaphragm pump 13. The discharge pipeline 12 is provided with a cooling pipe sleeve 1201. The top of the storage tank 1 is provided with a nitrogen sealing system. The metering tank 14 is provided with a second liquid level transmitter 1401. The output end of the second liquid level transmitter 1401 is electrically connected to the control end of the pneumatic diaphragm pump 13. The output end of the first liquid level transmitter 4 is electrically connected to the control end of the feed shut-off valve 801. The output end of the electrostatic grounding controller 15 is electrically connected to the control end of the pneumatic diaphragm pump 13.

[0029] When the static electricity index monitored by the static electricity grounding controller 15 is unqualified, the pneumatic diaphragm pump 13 cannot be started, thereby improving the safety during the discharge process.

[0030] By interlocking the first liquid level transmitter 4 and the feed cut-off valve 801, the maximum liquid level in the storage tank 1 is controlled to avoid safety accidents caused by excessive pressure.

[0031] Through the interlocking of the second liquid level transmitter 1401 and the pneumatic diaphragm pump 13, the maximum liquid level in the metering tank 14 is controlled to avoid safety accidents caused by excessive pressure.

[0032] The present invention provides a cooling sleeve 1201 outside the discharge pipeline 12, so that the carbon disulfide can maintain a low temperature after leaving the storage tank 1 with a lower temperature, reducing its temperature when entering the pneumatic diaphragm pump 13, thereby reducing its risk of leakage and combustion. At the same time, the present invention replaces ordinary hydraulic pumps and electric drive pumps with pneumatic diaphragm pumps 13. When transporting flammable and explosive liquids, the pneumatic diaphragm pump 13 has a lower risk of spark explosion than other types of pumps such as electric pumps. The pneumatic diaphragm pump 13 has good self-priming performance and can draw liquid from a certain height without priming the pump. This feature simplifies the operation process and reduces the risk of sparks caused by improper operation.

[0033] The pressure transmitter 7 is electrically connected to the central control system to facilitate real-time monitoring of the nitrogen blanketing pressure in the storage tank 1.

[0034] It can be understood that the output end of the temperature transmitter 5 is electrically connected to the control end of the cooling water regulating valve 202 .

[0035] The temperature of carbon disulfide in the storage tank 1 is controlled between 10-20°C by the temperature transmitter 5. When the temperature is lower than 10°C, the cooling water regulating valve 202 adjusts the flow rate of the cooling water to be slower. When the temperature is higher than 20°C, the cooling water regulating valve 202 adjusts the flow rate of the cooling water to be faster.

[0036] It can be understood that a gas detector 16 is provided near the storage tank 1 .

[0037] Once carbon disulfide leaks, the cyclohexylamine combustible gas detector 16 will immediately alarm and remind the operator to take technical emergency measures.

[0038] It can be understood that the storage tank 1 is provided with a liquid level gauge 6.

[0039] The provision of the liquid level gauge 6 can facilitate real-time observation of the liquid level of carbon disulfide in the storage tank 1 .

[0040] It can be understood that the nitrogen sealing system includes a nitrogen pipeline 9 and a discharge pipeline 10 located at the top of the storage tank 1. The nitrogen pipeline 9 is provided with a self-operated nitrogen sealing valve 901, and the discharge pipeline 10 is provided with a breathing valve 1001 with a flame arrester. The discharge pipeline 10 is connected to the exhaust gas treatment device 11.

[0041] Using nitrogen seal instead of water seal can prevent the water seal from freezing in cold weather, which would affect its use. At the same time, it can isolate the material from the air and prevent sparks from entering.

[0042] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A carbon disulfide discharging system, comprising a storage tank (1) and a jacket (2) arranged outside the storage tank (1), wherein the storage tank (1) is located in an underground water pool (3), and the height of the water storage in the underground water pool (3) is higher than the height of the storage tank (1), characterized in that: The bottom of one side of the jacket (2) is connected to a cooling water inlet pipe (201), and the top of one side is connected to a cooling water outlet pipe (203). The cooling water inlet pipe (201) is provided with a cooling water regulating valve (202). The storage tank (1) is provided with a temperature transmitter (5), a first liquid level transmitter (4), an electrostatic grounding controller (15) and a pressure transmitter (7). The storage tank (1) is provided with a feed pipeline (8), and the feed pipeline (8) is provided with a feed shut-off valve (801). The storage tank (1) is connected to a metering tank (14) through a discharge pipeline (12). A pneumatic diaphragm pump (13) is provided on the material pipeline (12), a cooling pipe sleeve (1201) is provided outside the discharge pipeline (12), a nitrogen sealing system is provided on the top of the storage tank (1), a second liquid level transmitter (1401) is provided on the metering tank (14), the output end of the second liquid level transmitter (1401) is electrically connected to the control end of the pneumatic diaphragm pump (13), the output end of the first liquid level transmitter (4) is electrically connected to the control end of the feed shut-off valve (801), and the output end of the electrostatic grounding controller (15) is electrically connected to the control end of the pneumatic diaphragm pump (13).

2. The carbon disulfide discharging system according to claim 1, characterized in that: The output end of the temperature transmitter (5) is electrically connected to the control end of the cooling water regulating valve (202).

3. The carbon disulfide discharging system according to claim 1, characterized in that: A gas detector (16) is provided near the storage tank (1).

4. The carbon disulfide discharging system according to claim 1, characterized in that: The storage tank (1) is provided with a liquid level gauge (6).

5. The carbon disulfide discharging system according to claim 1, characterized in that: The nitrogen sealing system comprises a nitrogen pipeline (9) and a discharge pipeline (10) located at the top of the storage tank (1); the nitrogen pipeline (9) is provided with a self-operated nitrogen sealing valve (901); and the discharge pipeline (10) is connected to an exhaust gas treatment device (11).

6. The carbon disulfide discharging system according to claim 5, characterized in that: The discharge pipeline (10) is provided with a breathing valve (1001) with a flame arrester.

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