CN216024028U - Pretreatment device for liquid ammonia tank car inspection - Google Patents
Pretreatment device for liquid ammonia tank car inspection Download PDFInfo
- Publication number
- CN216024028U CN216024028U CN202122592812.8U CN202122592812U CN216024028U CN 216024028 U CN216024028 U CN 216024028U CN 202122592812 U CN202122592812 U CN 202122592812U CN 216024028 U CN216024028 U CN 216024028U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- tank
- tower
- liquid ammonia
- pipeline
- 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
Abstract
The utility model relates to the technical field of vehicle inspection, in particular to a liquid ammonia tank vehicle inspection pretreatment device which comprises a tank body, a water tank and an absorption tower, wherein the water tank is connected with the top input end of the absorption tower through a conveying pipeline, a pump is arranged on the conveying pipeline for connecting the top input end of the absorption tower, the top output end of the absorption tower is connected with an induced draft fan through a pipeline, the bottom output end of the absorption tower is connected with the water tank, and the output end of the tank body is connected with the bottom input end of the absorption tower through a conveying pipeline. The pretreatment device for liquid ammonia tank car inspection provided by the utility model can effectively treat residual media in a tank body, does not damage the tank body, has zero emission and no pollution to the environment, and can be used for completing inspection without harming the body of an inspector.
Description
Technical Field
The utility model relates to the technical field of vehicle inspection, in particular to a pretreatment device for liquid ammonia tank vehicle inspection.
Background
Liquid ammonia tankers must be inspected periodically every year, and residual media is more or less in the tank before inspection of normally transported tankers. How to treat the residual liquid and gas in the tank car and the treatment result directly determine the inspection quality of the tank car. If the residual liquid and gas in the tank are not properly treated, the following problems can be caused:
(1) the waste gas is discharged into the atmosphere to pollute the environment;
(2) liquid ammonia has toxicity, and the physical health of inspectors is threatened due to improper treatment;
(3) the interaction of liquid ammonia, water and air produces ammonia stress corrosion cracking, so that the tank body produces crack defects.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a pretreatment device for liquid ammonia tank car inspection.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a processing apparatus before liquid ammonia tank car inspection, includes a jar body, pond and absorption tower, the pond passes through pipeline to be connected with the top of the tower input of absorption tower for connect install the pump on the pipeline of absorption tower top of the tower input, the top of the tower output of absorption tower has the draught fan through the pipe connection, the output is connected with the pond at the bottom of the tower of absorption tower, the output of jar body passes through pipeline and is connected with the input at the bottom of the tower of absorption tower.
The liquid ammonia tank car inspection pretreatment method comprises the following steps:
step 1, connecting a liquid phase of a liquid ammonia tank truck to be detected with a liquid ammonia delivery pipeline;
step 2, starting a pump to convey water in the water pool to the top of the tower, and simultaneously starting an induced draft fan;
step 3, opening a liquid phase emergency cut-off valve of the tank car, and conveying residual liquid and gas in the tank to the bottom of the absorption tower along a pipeline under the pressure of the tank;
step 4, the residual liquid and the gas conveyed to the bottom of the tower flow to the top of the tower under the simultaneous action of pressure and a draught fan, the rising residual liquid and the gas meet water sprayed from the top of the tower, and the water flows into a water pool under the action of gravity after absorbing liquid ammonia;
and 5, continuously operating the system until no residual liquid or gas overflows in the tank, and at the moment, keeping the pressure in the tank in a negative pressure state.
After treating a plurality of tank cars, NH in the pool3The concentration rises and becomes substantially all NH3·H2O, NH to be removed at this time3The solution is sent to a chemical plant and water is re-injected into the water pool.
The utility model has the beneficial effects that:
the pretreatment device for liquid ammonia tank car inspection provided by the utility model can effectively treat residual media in a tank body, does not damage the tank body, has zero emission and no pollution to the environment, and can be used for completing inspection without harming the body of an inspector.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a pretreatment device for liquid ammonia tank car inspection according to the present invention.
In the figure: 1. a tank body; 2. a pool; 3. an absorption tower; 4. a pump; 5. a delivery conduit; 6. an induced draft fan.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in figure 1, the pretreatment device for liquid ammonia tank car inspection comprises a tank body 1, a water tank 2 and an absorption tower 3, wherein the water tank 2 is connected with the top input end of the absorption tower 3 through a conveying pipeline 5, a pump 4 is installed on the conveying pipeline 5 for connecting the top input end of the absorption tower 3, the top output end of the absorption tower 3 is connected with an induced draft fan 6 through a pipeline, the bottom output end of the absorption tower 3 is connected with the water tank 2, and the output end of the tank body 1 is connected with the bottom input end of the absorption tower 3 through the conveying pipeline 5.
A liquid ammonia tank car inspection processing method comprises the following steps:
step 1, connecting a liquid phase of a liquid ammonia tank truck to be detected with a liquid ammonia delivery pipeline;
step 2, starting a pump to convey water in the water pool to the top of the tower, and simultaneously starting an induced draft fan;
step 3, opening a liquid phase emergency cut-off valve of the tank car, and conveying residual liquid and gas in the tank to the bottom of the absorption tower along a pipeline under the pressure of the tank;
step 4, the residual liquid and the gas conveyed to the bottom of the tower flow to the top of the tower under the simultaneous action of pressure and a draught fan, the rising residual liquid and the gas meet water sprayed from the top of the tower, and the water flows into a water pool under the action of gravity after absorbing liquid ammonia;
and 5, continuously operating the system until no residual liquid or gas overflows in the tank, and at the moment, keeping the pressure in the tank in a negative pressure state.
After treating a plurality of tank cars, NH in the pool3The concentration rises and becomes substantially all NH3·H2O, NH to be removed at this time3The solution is sent to a chemical plant and water is re-injected into the water pool.
And (5) performing a deep treatment process. The advanced treatment process comprises the following steps: (1) opening the liquid phase emergency cut-off valve and the stop valve, and filling water into the tank in a negative pressure state until the gas phase emergency cut-off valve of the tank body overflows with water; (2) closing all valves, starting the vehicle and continuously shaking; (3) and opening the liquid phase emergency cut-off valve to discharge the water in the tank into a water pool. Repeating the above process for 3 times, opening the manhole, and removing the residual liquid in the tank.
After pretreatment and advanced treatment, the residual liquid and gas in the tank are completely treated, and the tank truck reaches a detectable state.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides a processing apparatus before liquid ammonia tank car inspection, a serial communication port, including a jar body (1), pond (2) and absorption tower (3), pond (2) are connected through pipeline (5) and the top of the tower input of absorption tower (3), are used for connecting install pump (4) on pipeline (5) of absorption tower (3) top of the tower input, the top of the tower output of absorption tower (3) has draught fan (6) through the pipe connection, the tower bottom output of absorption tower (3) is connected with pond (2), the output of the jar body (1) is connected through pipeline (5) and the tower bottom input of absorption tower (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592812.8U CN216024028U (en) | 2021-10-27 | 2021-10-27 | Pretreatment device for liquid ammonia tank car inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592812.8U CN216024028U (en) | 2021-10-27 | 2021-10-27 | Pretreatment device for liquid ammonia tank car inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216024028U true CN216024028U (en) | 2022-03-15 |
Family
ID=80550216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122592812.8U Active CN216024028U (en) | 2021-10-27 | 2021-10-27 | Pretreatment device for liquid ammonia tank car inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216024028U (en) |
-
2021
- 2021-10-27 CN CN202122592812.8U patent/CN216024028U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102426127A (en) | Acid gas treating device for digestion acid-dispelling instrument | |
| WO2009105894A4 (en) | Exhaust gas treatment apparatus and method | |
| CN216024028U (en) | Pretreatment device for liquid ammonia tank car inspection | |
| CN105156241A (en) | Diesel engine fuel oil air removal device | |
| CN206837802U (en) | For city anaerobic pond waste gas purification tapping equipment | |
| CN104941424A (en) | Acid-alkali exhaust-gas treatment system | |
| CN204656313U (en) | A kind of soda acid exhaust treatment system | |
| CN216024029U (en) | Pretreatment device for liquid chlorine tank truck inspection | |
| CN209093090U (en) | Coke-oven plant's entrucking exhaust gas processing device | |
| CN102139852A (en) | Method and device for realizing safe centralized transportation of single-well oil tank trucks for crude oils with high hydrogen sulfide content | |
| CN210845798U (en) | Tank unloading gas processing apparatus under ammonia refining liquid | |
| CN210974209U (en) | Vehicle-mounted sewage treatment system | |
| CN204159067U (en) | Chemical solvent gas concentration unit in discharging waste gas | |
| CN112361211A (en) | Method and device for treating residual ammonia and dirt of liquid ammonia tank car | |
| CN105582797A (en) | Tail gas washing and purifying device for HPF (Hydroquinone PDS Ferrisulphas) gas desulfurization | |
| CN204380379U (en) | A kind of nitric acid exhaust system | |
| CN214734466U (en) | Visible exhaust body device for inlet of ammonia water unloading pump | |
| CN209828679U (en) | Workshop tail gas treatment device | |
| CN213977295U (en) | Device for removing harmful gas in seawater desalination | |
| CN219736692U (en) | Sewage SBR pool aeration system leakage test device | |
| CN205361043U (en) | Waste gas filtering device | |
| CN206723163U (en) | A kind of air-lift device for being used to convey liquid | |
| CN201161159Y (en) | Hydrogen sulphide processing equipment for thick oil development | |
| CN210885724U (en) | Sewage treatment system | |
| CN209940523U (en) | Double-circulation air flotation machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |