CN214059894U - Tank car canning metering control device - Google Patents
Tank car canning metering control device Download PDFInfo
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- CN214059894U CN214059894U CN202022297565.4U CN202022297565U CN214059894U CN 214059894 U CN214059894 U CN 214059894U CN 202022297565 U CN202022297565 U CN 202022297565U CN 214059894 U CN214059894 U CN 214059894U
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Abstract
The utility model discloses a tank wagon canning metering control device, include: the system comprises a tank car, a material storage tank, a pump, a flowmeter, an adjusting valve, a cut-off valve and a controller; the material storage tank comprises a discharge port, a backflow port and a pressure balance port, the discharge port is connected with an inlet of the pump through a material discharge pipeline, the backflow port is connected with an outlet of the pump through a material backflow pipeline, and the pressure balance port is connected with the tank wagon through the pressure balance pipeline; the outlet of the pump is connected with the tank wagon through a material feeding pipeline; a stop valve, an adjusting valve and a flowmeter are sequentially arranged on the material feeding pipeline in the direction from the outlet of the pump to the tank car; the stop valve, the regulating valve and the flowmeter are respectively electrically connected with the controller. In this way, the utility model discloses tank wagon canning measurement controlling means can promote the required precision and the personnel's of canning safety.
Description
Technical Field
The utility model relates to a tank wagon canning field especially relates to a tank wagon canning metering control device.
Background
With the banning of the nation on the backward productivity and numerous small-risk chemical enterprises, the whole chemical industry inevitably develops towards a larger and safer direction. Good large-scale chemical enterprises will do more strongly, but more excellent small and medium-scale chemical enterprises need to be promoted in the aspects of environmental protection and safety to be better and survive, and an important aspect of promotion is to automatically control the application in the enterprises. For large enterprises, because of great capital advantages, on the aspect of canning, no matter small packages or large packages of tank cars, high-efficiency and high-level automatic operation can be completely realized, for some small and excellent enterprises, the cost can still be reduced only through manual operation under the condition of no capital advantages, because of strong human subjective factors, relatively large weight deviation of canning, and because of human subjective factors, loss or accidents can be caused, and certain contradiction exists with national safety production.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a tank wagon canning metering control device, can promote the required precision and personnel's of canning safety.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a tank car tank filling metering control device, including: the system comprises a tank car, a material storage tank, a pump, a flowmeter, an adjusting valve, a cut-off valve and a controller;
the material storage tank comprises a discharge port, a backflow port and a pressure balance port, the discharge port is connected with an inlet of the pump through a material discharge pipeline, the backflow port is connected with an outlet of the pump through a material backflow pipeline, and the pressure balance port is connected with the tank wagon through the pressure balance pipeline;
the outlet of the pump is connected with the tank wagon through a material feeding pipeline;
a stop valve, an adjusting valve and a flowmeter are sequentially arranged on the material feeding pipeline in the direction from the outlet of the pump to the tank car;
the stop valve, the regulating valve and the flowmeter are respectively electrically connected with the controller.
In a preferred embodiment of the present invention, the stop valve is a pneumatic cut-off ball valve, the regulating valve is a pneumatic regulating valve, and the flow meter is a mass flow meter.
In a preferred embodiment of the present invention, the flow meter is a flow meter with cumulative output function.
In a preferred embodiment of the present invention, the controller is a DCS or PLC control system.
In a preferred embodiment of the present invention, the control device further includes an alarm, and the alarm is electrically connected to the controller.
In a preferred embodiment of the present invention, the controller includes an operation module, and the operation module includes a reset button, an enable button, and a disable button.
The utility model has the advantages that: the utility model discloses tank wagon canning measurement controlling means has following advantage:
1) the method is simple and practical: equipment is not required to be customized, only a plurality of common instruments are required to be added, the arrangement can be carried out by depending on the existing DCS of a factory, the change of the original equipment and facilities is small, and the cost is low;
2) the precision requirement is improved: the material canning flow is controlled by the regulating valve, and the canning excess can be avoided by reducing the opening of the valve at the later stage of canning;
3) the safety is improved: the feed is closed through a stop valve and a regulating valve double valve after canning is finished, and the safety of detaching a tank car pipeline after canning is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
the parts in the drawings are numbered as follows: 1-tank wagon, 2-material storage tank, 3-pump, 4-flowmeter, 5-regulating valve, 6-shut-off valve, 7-controller, 81-material discharge pipeline, 82-material reflux pipeline, 83-pressure balance pipeline and 84-material feeding pipeline.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
a tanker gauging control device, comprising: the tank wagon 1, material storage tank 2, pump 3, flowmeter 4, governing valve 5, trip valve 6, controller 7 and connecting line. The connecting lines include a material outlet line 81, a material return line 82, a pressure equalization line 83 and a material feed line 84. Valves are installed at each port of the pipeline.
The material storage tank 2 comprises a discharge port, a backflow port and a pressure balance port, the discharge port is connected with an inlet of the pump 3 through a material discharge pipeline 81, the backflow port is connected with an outlet of the pump 3 through a material backflow pipeline 82, and the pressure balance port is connected with the tank wagon 1 through a pressure balance pipeline 83. The outlet of the pump 3 is connected to the tanker 1 via a material feed line 84.
A shut-off valve 6, a regulating valve 5 and a flow meter 4 are sequentially arranged on the material feeding pipeline 84 in the direction from the outlet of the pump 3 to the tank wagon 1; the stop valve 6, the regulating valve 5 and the flowmeter 4 are respectively electrically connected with the controller 7. The trip valve 6 is the pneumatic ball valve that cuts off, governing valve 5 is the pneumatic governing valve, flowmeter 4 is for having the mass flow meter of cumulative output function.
The controller 7 can be a microminiature control device, and preferably adopts a DCS or PLC control system existing in a factory. The DCS control system may be set. Setting the accumulated flow of the mass flow meter and a PID (proportion integration differentiation) regulation strategy of a pneumatic regulating valve, and regulating the flow by controlling the opening of the valve; setting an accumulated flow target value of the mass flowmeter to be interlocked with the pneumatic cut-off ball valve, and closing the pneumatic cut-off ball valve after the accumulated flow reaches the standard; setting the accumulated flow alarm, and alarming to prompt an operator to pay attention when the accumulated flow alarm is close to the target flow. An operation module can be set for the DCS picture. And a module for setting reset, commissioning and deactivation buttons and setting an accumulated flow target input value and an alarm input value. After the canning pipeline of the on-site tank car is connected, the material delivery pump is started, and after parameters are set, the automatic metering and cutting-off function of canning can be realized.
The utility model discloses tank wagon canning measurement controlling means has following advantage:
1) the method is simple and practical: equipment does not need to be customized, only a plurality of common instruments need to be added, the arrangement can be carried out by depending on the existing DCS system of a factory, the change of the original equipment and facilities is small, and the cost is low;
2) the precision requirement is improved: the material canning flow is controlled by the regulating valve, and the canning excess can be avoided by reducing the opening of the valve at the later stage of canning;
3) the safety is improved: after canning is finished, the feeding is closed through a stop valve and a regulating valve, so that the safety of detaching a tank car pipeline after canning is ensured;
4) can install alarm device additional, further promote the security: the personnel on duty can monitor the canning progress through the control room to can report to the police the setting to the canning flow through the DCS system, improve the security performance in the operation process greatly.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. A tank wagon tank charging control device is characterized by comprising: the system comprises a tank car, a material storage tank, a pump, a flowmeter, an adjusting valve, a cut-off valve and a controller;
the material storage tank comprises a discharge port, a backflow port and a pressure balance port, the discharge port is connected with an inlet of the pump through a material discharge pipeline, the backflow port is connected with an outlet of the pump through a material backflow pipeline, and the pressure balance port is connected with the tank wagon through a pressure balance pipeline;
the outlet of the pump is connected with the tank wagon through a material feeding pipeline;
a stop valve, an adjusting valve and a flowmeter are sequentially arranged on the material feeding pipeline in the direction from the outlet of the pump to the tank car;
the stop valve, the regulating valve and the flowmeter are respectively electrically connected with the controller.
2. The tanker-canned metering control device of claim 1, wherein the shut-off valve is a pneumatic shut-off ball valve, the regulating valve is a pneumatic regulating valve, and the flow meter is a mass flow meter.
3. The tanker-canned metering control device of claim 1, wherein the flow meter is a flow meter with cumulative output function.
4. The tanker canning metering control device of claim 1, wherein said controller is a DCS or PLC control system.
5. The tanker-tank gauging control device according to claim 1, further comprising an alarm, said alarm being electrically connected to said controller.
6. The tanker canning metering control device of claim 1, wherein said controller comprises an operating module comprising a reset button, a commissioning button and a deactivation button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022297565.4U CN214059894U (en) | 2020-10-15 | 2020-10-15 | Tank car canning metering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022297565.4U CN214059894U (en) | 2020-10-15 | 2020-10-15 | Tank car canning metering control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214059894U true CN214059894U (en) | 2021-08-27 |
Family
ID=77396618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022297565.4U Active CN214059894U (en) | 2020-10-15 | 2020-10-15 | Tank car canning metering control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214059894U (en) |
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2020
- 2020-10-15 CN CN202022297565.4U patent/CN214059894U/en active Active
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