CN218237067U - Gas phase pressurizing device for unloading liquid chlorine tank truck - Google Patents
Gas phase pressurizing device for unloading liquid chlorine tank truck Download PDFInfo
- Publication number
- CN218237067U CN218237067U CN202221906143.5U CN202221906143U CN218237067U CN 218237067 U CN218237067 U CN 218237067U CN 202221906143 U CN202221906143 U CN 202221906143U CN 218237067 U CN218237067 U CN 218237067U
- Authority
- CN
- China
- Prior art keywords
- chlorine
- liquid chlorine
- pipe
- storage tank
- pressurization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to an unloader technical field discloses liquefied chlorine tank wagon gas phase pressure equipment device for unloading, including pressurization storage tank, coil pipe vaporizer, the below of pressurization storage tank is provided with the coil pipe vaporizer, upper end between pressurization storage tank and the coil pipe vaporizer is provided with the chlorine outlet duct, it is provided with the discharging pipe to be provided with the lower extreme between pressurization storage tank and the coil pipe vaporizer, the inside of coil pipe vaporizer is provided with heating coil, discharging pipe, chlorine outlet duct and heating coil are connected, be provided with liquefied chlorine ejection of compact trip valve on the discharging pipe, one side of liquefied chlorine ejection of compact trip valve is provided with liquefied chlorine ejection of compact governing valve. The utility model discloses this device adopts liquid chlorine full vaporization technology, utilizes hot water to the liquid chlorine heating in the coil pipe, and hot water temperature (80 ℃ -90 ℃) guarantees the whole vaporization of liquid chlorine, has thoroughly eliminated the potential safety hazard of nitrogen trichloride enrichment, has realized liquid chlorine feeding, intensification, pressurized automated control.
Description
Technical Field
The utility model relates to an unloader technical field specifically is pneumatic addition unit for unloading of liquid chlorine tank wagon.
Background
Liquid chlorine is a liquefied state of chlorine, is a highly toxic chemical, has a high degree of harm, is listed as a first major regulated hazardous chemical in the national safety supervision administration, is extremely harmful to human health and environment once leakage occurs in the liquid chlorine, and is a link in which leakage and pollution of the liquid chlorine easily occur in the unloading process. At present, the domestic liquid chlorine tank truck unloading process mainly comprises the following three processes: 1) The air compression chlorine discharging process is simple and safe, but hypochlorous acid and hydrochloric acid are generated by chlorine and moisture in air in the unloading process, so that the process has great corrosion to equipment, pipelines and the like, the water content of compressed air needs to be controlled, the air continuously enters a tank car and a storage tank, the purity of liquid chlorine is influenced, and simultaneously, a large amount of chlorine-containing waste gas is generated by exhausting the air; 2) The potential difference pumping and discharging process is characterized in that a liquid chlorine underground storage tank is added, liquid chlorine is introduced into the liquid chlorine underground storage tank through the pressure of a tank car, and then the liquid chlorine is pumped into a storage tank by a pump, so that excessive tail gas emission does not exist in the process, but a pit is required to be arranged for placing the liquid chlorine underground storage tank and a liquid chlorine delivery pump, and the equipment investment and maintenance cost are increased; 3) In the gasification chlorine discharging process, liquid chlorine in a kettle type gasifier is heated and gasified, then the pressure is increased, and the liquid chlorine is pressed into a storage tank from a tank car through a gas phase pressurization pipeline.
Chinese patent discloses a high-purity liquid chlorine tank wagon device of unloading (grant bulletin No. CN 210950783U), this patent technique is convenient for adopt nitrogen gas to carry out twice pressurize leakage test to the pipeline of unloading, can ensure the reliability that oil filling riser and tank wagon are connected, liquid chlorine leakage accident that common oil filling riser connection does not lead to well has been avoided, carry out twice venturi simultaneously and sweep, introduce nitrogen gas impurity after avoiding the pressure testing, but its use is comparatively complicated, the potential safety hazard is eliminated thoroughly inadequately, reducing means's practicality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquefied chlorine tank wagon is with gas pressurizer for unloading to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
gas phase pressurization device for liquid chlorine tank wagon is unloaded, including pressurization storage tank, coil pipe vaporizer, the below of pressurization storage tank is provided with the coil pipe vaporizer, upper end between pressurization storage tank and the coil pipe vaporizer is provided with the chlorine outlet duct, it is provided with the discharging pipe to be provided with the lower extreme between pressurization storage tank and the coil pipe vaporizer, the inside of coil pipe vaporizer is provided with heating coil, discharging pipe, chlorine outlet duct and heating coil are connected, be provided with liquid chlorine ejection of compact trip valve on the discharging pipe, one side of liquid chlorine ejection of compact trip valve is provided with liquid chlorine ejection of compact governing valve, the one end of pressurization storage tank top is provided with liquid chlorine inlet pipe, the other end of pressurization storage tank top is provided with pressure transmitter, one side of liquid chlorine inlet pipe sets up the balance pipe of giving vent to anger, the pressurization storage tank is provided with safe pressure release pipe, one side of safe pressure release pipe is provided with gaseous phase pressurization pipeline.
As a further aspect of the present invention: the coil pipe vaporizer is characterized in that a water outlet pipe is arranged above one side of the coil pipe vaporizer, a hot water inlet pipe is arranged below one side of the coil pipe vaporizer, and a temperature transmitter is arranged inside the coil pipe vaporizer.
As the utility model discloses further scheme again: and a hot water regulating valve is arranged on the hot water inlet pipe.
As a further aspect of the present invention: the liquid chlorine inlet pipe is provided with a liquid chlorine inlet cut-off valve, and the air outlet balance pipe is provided with a chlorine balance cut-off valve.
As a further aspect of the present invention: the safety relief pipe is provided with a safety valve, and the gas phase pressurization pipeline is provided with a chlorine pressurization cut-off valve.
As the utility model discloses further scheme again: and a liquid level transmitter is arranged on one side of the pressurizing storage tank.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the device adopts a liquid chlorine full vaporization process, liquid chlorine in the coil is heated by hot water, the hot water temperature (80-90 ℃) ensures that the liquid chlorine is completely vaporized, the potential safety hazard of nitrogen trichloride enrichment is thoroughly eliminated, and the automatic control of liquid chlorine feeding, temperature rising and pressurization is realized.
Drawings
FIG. 1 is a schematic structural view of an air pressure addition device for unloading a liquid chlorine tank truck;
FIG. 2 is a cross-sectional view of a coil vaporizer in an air phase pressurization device for unloading a liquid chlorine tank car.
In the figure: 1. a liquid chlorine discharging cut-off valve; 2. liquid chlorine discharging regulating valve; 3. a hot water regulating valve; 4. a coil vaporizer; 5. a liquid chlorine feed shut-off valve; 6. a chlorine gas balance cut-off valve; 7. chlorine pressurization shut-off valve; 8. a pressure transmitter; 9. a liquid level transmitter; 10. pressurizing the storage tank; 11. a heating coil; 12. a safety valve; 13. a liquid chlorine feeding pipe; 14. an air outlet balance pipe; 15. a safety pressure relief pipe; 16. a gas phase pressurization pipeline; 17. a discharge pipe; 18. a chlorine gas outlet pipe; 19. a hot water inlet pipe; 20. a water outlet pipe; 21. and a temperature transmitter.
Detailed Description
Please refer to fig. 1-2, in the embodiment of the present invention, a gas phase pressurization device for unloading of a liquid chlorine tank car, including pressurization storage tank 10, coil vaporizer 4, the below of pressurization storage tank 10 is provided with coil vaporizer 4, upper end between pressurization storage tank 10 and coil vaporizer 4 is provided with chlorine outlet duct 18, it is provided with discharging pipe 17 to be provided with the lower extreme between pressurization storage tank 10 and the coil vaporizer 4, coil vaporizer 4's inside is provided with heating coil 11, discharging pipe 17, chlorine outlet duct 18 and heating coil 11 are connected, be provided with liquid chlorine ejection of compact trip valve 1 on discharging pipe 17, one side of liquid chlorine ejection of compact trip valve 1 is provided with liquid chlorine discharge control valve 2, the one end of pressurization storage tank 10 top is provided with liquid chlorine inlet pipe 13, the other end above pressurization storage tank 10 is provided with pressure transmitter 8, one side of liquid chlorine inlet pipe 13 is provided with air outlet balance pipe 14, pressurization storage tank 10 is provided with safe pressure release pipe 15, one side of safe pressure release pipe 15 is provided with gas phase pressurization pipeline 16.
In fig. 1 and 2: a water outlet pipe 20 is arranged above one side of the coil vaporizer 4, a hot water inlet pipe 19 is arranged below one side of the coil vaporizer 4, and a temperature transmitter 21 is arranged inside the coil vaporizer 4.
In fig. 2: the hot water inlet pipe 19 is provided with a hot water regulating valve 3.
In fig. 1: the liquid chlorine feeding pipe 13 is provided with a liquid chlorine feeding cut-off valve 5, and the gas outlet balance pipe 14 is provided with a chlorine balance cut-off valve 6.
In fig. 1: the safety relief pipe 15 is provided with a safety valve 12, and the gas phase pressure pipeline 16 is provided with a chlorine pressure cut-off valve 7.
In fig. 1: a level transmitter 9 is provided at one side of the pressurized tank 10.
The utility model discloses a theory of operation is: when the device is used, firstly, feeding: (certain liquid chlorine is pressed into a pressurized storage tank 10 from a storage tank), a chlorine gas balance cut-off valve 6 and a liquid chlorine feeding cut-off valve 5 are opened, the liquid chlorine in a storage pipe enters the pressurized storage tank 10, and when a liquid level transmitter 9 reaches a set liquid level, the liquid chlorine feeding cut-off valve 5 and the chlorine gas balance cut-off valve 6 are closed;
2. heating and vaporizing: (the coil pipe vaporizer 4 is 1-1.5 meters lower than the pressurized storage tank 10 and is the power for liquid chlorine to enter the vaporizer), the DCS or the PLC automatically adjusts the opening of the hot water regulating valve 3 according to the set temperature (80 ℃ -90 ℃), when the temperature transmitter 21 reaches the set temperature, the liquid chlorine discharging cut-off valve 1 is opened, the liquid chlorine discharging regulating valve 2 is opened, the liquid chlorine enters the heating coil 11, chlorine enters the pressurized storage tank 10 after heating and full vaporization, the pressure of the pressurized storage tank 10 rises, and the opening of the liquid chlorine discharging regulating valve 2 is automatically controlled by the control system DCS or the PLC according to the pressure in the set pressurized storage tank 10, so that the pressure transmitter 8 in the pressurized storage tank 10 is kept stable;
3. unloading and pressurizing: when the pressure of the pressurized storage tank 10 reaches the unloading pressure, the chlorine pressurization shut-off valve 7 is opened, pressurized chlorine enters the tank car through the gas phase pressurization pipeline 16, liquid chlorine is pressed into the liquid chlorine storage tank, after the unloading is finished, the liquid chlorine discharge shut-off valve 1, the liquid chlorine discharge regulating valve 2, the chlorine pressurization shut-off valve 7 and the hot water regulating valve 3 are all closed, the chlorine balance shut-off valve is opened, and when the pressure transmitter 8 in the pressurized storage tank 10 is lower than 0.6Mpa, the chlorine balance shut-off valve 6 is closed;
4. and (3) overpressure protection: when the pressure transmitter 8 in the unloading and pressurizing storage tank 10 exceeds the upper limit set value, the liquid chlorine discharging cut-off valve 1, the liquid chlorine discharging regulating valve 2 and the hot water regulating valve 3 are automatically cut off, and after the pressure exceeds the set pressure of the safety valve 12, the safety valve 12 acts, and chlorine in the pressurizing storage tank 10 enters the tail gas absorption system.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Gas phase pressurization device for liquid chlorine tank wagon is unloaded, including pressurization storage tank (10), coil pipe vaporizer (4), the below of pressurization storage tank (10) is provided with coil pipe vaporizer (4), a serial communication port, upper end between pressurization storage tank (10) and coil pipe vaporizer (4) is provided with chlorine outlet duct (18), it is provided with discharging pipe (17) to be provided with the lower extreme between pressurization storage tank (10) and coil pipe vaporizer (4), the inside of coil pipe vaporizer (4) is provided with heating coil (11), discharging pipe (17), chlorine outlet duct (18) and heating coil (11) are connected, be provided with liquid chlorine ejection of compact trip valve (1) on discharging pipe (17), one side of liquid chlorine ejection of compact trip valve (1) is provided with liquid chlorine ejection of compact governing valve (2), the one end of pressurization storage tank (10) top is provided with liquid chlorine inlet pipe (13), the other end of pressurization storage tank (10) top is provided with pressure transmitter (8), one side of liquid chlorine inlet pipe (13) sets up the balance pipe (14) of giving vent to anger, pressurization storage tank (10) is provided with safe pressure relief pipe (15), one side of safe pressure relief pipe (15) is provided with pressurization pipeline (16).
2. The gas pressure addition device for unloading a liquid chlorine tank car as claimed in claim 1, wherein a water outlet pipe (20) is arranged above one side of the coil vaporizer (4), a hot water inlet pipe (19) is arranged below one side of the coil vaporizer (4), and a temperature transmitter (21) is arranged inside the coil vaporizer (4).
3. The gas pressure device for unloading a liquid chlorine tank wagon according to claim 2, characterized in that the hot water inlet pipe (19) is provided with a hot water regulating valve (3).
4. The gas phase pressurization device for liquid chlorine tank car unloading according to claim 1, characterized in that the liquid chlorine feeding pipe (13) is provided with a liquid chlorine feeding cut-off valve (5), and the gas outlet balance pipe (14) is provided with a chlorine gas balance cut-off valve (6).
5. The gas phase pressurization device for liquid chlorine tank car unloading according to claim 1, characterized in that a safety valve (12) is arranged on the safety pressure relief pipe (15), and a chlorine gas pressurization shut-off valve (7) is arranged on the gas phase pressurization pipeline (16).
6. The gas pressure equipment for liquid chlorine tank car unloading according to claim 1, characterized in that a level transmitter (9) is provided at one side of the pressurized storage tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221906143.5U CN218237067U (en) | 2022-07-19 | 2022-07-19 | Gas phase pressurizing device for unloading liquid chlorine tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221906143.5U CN218237067U (en) | 2022-07-19 | 2022-07-19 | Gas phase pressurizing device for unloading liquid chlorine tank truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218237067U true CN218237067U (en) | 2023-01-06 |
Family
ID=84678052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221906143.5U Active CN218237067U (en) | 2022-07-19 | 2022-07-19 | Gas phase pressurizing device for unloading liquid chlorine tank truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218237067U (en) |
-
2022
- 2022-07-19 CN CN202221906143.5U patent/CN218237067U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101767697B (en) | Intrinsically safe inerting protection method and device for oil storage tank | |
| CN202082623U (en) | Aftercondenser control system | |
| CN203363663U (en) | Nitrogen pressure control system for chemical storage tank | |
| CN102588740B (en) | High-pressure and high-purity nitrogen distribution device for plume test platform and application method for device | |
| CN105366639A (en) | Portable hydrogen production equipment by automatic control of aluminum-water reaction | |
| CN111846675A (en) | Oil gas volatilization inhibition system and method with inert gas protection function | |
| CN110589759A (en) | Hydrogen production device and hydrogenation system | |
| CN218237067U (en) | Gas phase pressurizing device for unloading liquid chlorine tank truck | |
| CN101871573A (en) | Liquid chlorine vaporization device | |
| CN202609903U (en) | Sulfuric acid pressure conveying system | |
| CN110762387A (en) | High-purity liquid chlorine tank truck unloading device and unloading method thereof | |
| CN210149987U (en) | Inflammable and explosive liquid conveying device | |
| CN201680144U (en) | Liquid chlorine vaporizing device | |
| CN217199955U (en) | Nitrogen bag type safety and environment protection device for normal-pressure oil product storage tank | |
| CN205445661U (en) | Liquid nitrogen pressure boost fire extinction/protection system | |
| CN201406314Y (en) | Device used for adding stabilizer in insoluble sulfur | |
| CN212584720U (en) | Hydrogenation station for social vehicles and trams | |
| CN204922494U (en) | Gas station and power device thereof | |
| CN209415019U (en) | A kind of nuclear power station hydrogen booster system | |
| CN209865789U (en) | A diluting device for liquid ammonia emergency treatment | |
| CN210620236U (en) | Hydrogen production device and hydrogenation system | |
| CN206278252U (en) | A kind of device of helium balloon supercharging | |
| CN201827648U (en) | Device for reducing residues of liquid chlorine cylinder | |
| CN205746013U (en) | A kind of LNG loading system | |
| CN115258443A (en) | Oil field tank field VCUS utilization equipment and technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |