CN216323918U - Crystallization blockage preventing system for carbon dioxide pipeline in urea production device - Google Patents
Crystallization blockage preventing system for carbon dioxide pipeline in urea production device Download PDFInfo
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- CN216323918U CN216323918U CN202122553122.1U CN202122553122U CN216323918U CN 216323918 U CN216323918 U CN 216323918U CN 202122553122 U CN202122553122 U CN 202122553122U CN 216323918 U CN216323918 U CN 216323918U
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- pipeline
- carbon dioxide
- flushing water
- valve
- urea production
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Abstract
The utility model discloses a crystallization blockage prevention system for a carbon dioxide pipeline in a urea production device, which comprises a high-pressure flushing water pump, wherein the outlet of the high-pressure flushing water pump is connected with a flushing water pipeline, and the flushing water pipeline is respectively communicated with the carbon dioxide pipelines at two sides of a quick-closing valve through a branch pipeline and valves on the branch pipeline; the system opens the quick closing valve, the valve on the branch pipeline and the high-pressure flushing water pump after emergency stop or pipeline liquid pouring and blockage, and flushing water flushes and replaces the carbon dioxide pipeline, so that urine crystals flowing back into the carbon dioxide pipeline can be prevented from damaging the quick closing valve, or serious overpressure accidents caused by blockage of the carbon dioxide pipeline during starting and feeding of the device can be avoided.
Description
Technical Field
The utility model relates to the field of urea production, in particular to a crystallization blockage preventing system for a carbon dioxide pipeline in a urea production device.
Background
The liquid easily takes place to fall in the emergency shutdown in-process to the strip tower pipeline in the carbon dioxide compressor four sections export among the urea apparatus for producing, urine refluence gets into carbon dioxide pipeline cooling back crystallization and blocks up the pipeline, the electromagnetism quick-closing valve on this pipeline is damaged easily to the crystallization (electromagnetism quick-closing valve department is many at most all leak a bit), cause its can not normal switch, seriously influence the device and seal the tower and resume the progress of driving, often handle through dismantling the valve body when the solenoid valve can not normal switch, not only consuming time but also easily cause the valve damage, pipeline blocking still can appear the incident of the serious superpressure of carbon dioxide pipeline when resuming driving in addition.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a system for preventing carbon dioxide pipeline from being blocked by crystallization in a urea production apparatus, which can prevent the carbon dioxide pipeline from being crystallized, thereby preventing an electromagnetic valve from being damaged, and further preventing an overpressure accident of the pipeline from occurring.
The purpose of the utility model is realized by the following technical scheme:
the system comprises a high-pressure washing water pump, wherein the outlet of the high-pressure washing water pump is connected with a washing water pipeline, and the washing water pipeline is communicated with carbon dioxide pipelines on two sides of a quick-closing valve through a branch pipeline and valves on the branch pipeline respectively.
Furthermore, a connecting pipeline is communicated with a carbon dioxide pipeline between the large-angle valve and the carbon dioxide compressor, and the other end of the connecting pipeline is communicated with a branch pipeline at the rear side of the valve of the quick-closing valve facing the carbon dioxide compressor.
Furthermore, three valves are arranged on each branch pipeline, and the middle valve is a manual three-way valve.
Still further, the valves in the system are all angle valves.
The utility model has the beneficial effects that:
according to the crystallization blockage preventing system for the carbon dioxide pipeline in the urea production device, the quick closing valve, the valve on the branch pipeline and the high-pressure flushing water pump are opened after emergency stop or liquid pouring and blockage of the pipeline occur, the flushing water flushes and replaces the carbon dioxide pipeline, and therefore the quick closing valve can be prevented from being damaged by urine crystallization flowing back into the carbon dioxide pipeline, or serious overpressure accidents caused by blockage of the carbon dioxide pipeline when the device is started and fed can be avoided. Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the utility model only and are not limiting upon the scope of the utility model.
As shown in figure 1, the system for preventing the carbon dioxide pipeline from being blocked by crystallization in the urea production device comprises a high-pressure flushing water pump, wherein the outlet of the high-pressure flushing water pump is connected with a flushing water pipeline 1, and the flushing water pipeline 1 is respectively communicated with carbon dioxide pipelines 3 at two sides of a quick-closing valve through a branch pipeline 2 and valves on the branch pipeline 2.
This system, at emergency shutdown, open valve and high-pressure wash water pump on quick-closing valve, the lateral line after the system is stable, the sparge water washes the carbon dioxide pipeline to can avoid the urine crystallization that the refluence entered in the carbon dioxide pipeline to damage quick-closing valve, close valve and quick-closing valve on high-pressure wash water pump, the lateral line after washing the completion, also need wash the carbon dioxide pipeline before resuming driving, ensure that the pipeline is unobstructed.
The carbon dioxide pipeline 3 between the large angle valve and the carbon dioxide compressor is communicated with a connecting pipeline 4, the other end of the connecting pipeline 4 is communicated with the branch pipeline 2 on the rear side of the valve of the quick closing valve facing the carbon dioxide compressor, and the large angle valve can be prevented from being blocked due to crystallization.
The valves on each branch pipeline 2 are three, the middle valve is a manual three-way valve, preferably, the valves in the system are all angle valves, and when the urea production device is in operation, whether liquid or gas leaks from the middle valve or not can be checked by opening the middle valve and the valve on one side of the middle valve.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (4)
1. Carbon dioxide pipeline is with preventing crystallization system of blockking up among urea production device, its characterized in that: the device comprises a high-pressure flushing water pump, wherein a pump outlet of the high-pressure flushing water pump is connected with a flushing water pipeline (1), and the flushing water pipeline (1) is respectively communicated with carbon dioxide pipelines (3) on two sides of a quick-closing valve through a branch pipeline (2) and valves on the branch pipeline (2).
2. The system of claim 1 for preventing the clogging of carbon dioxide lines in urea production plants, characterized in that: a connecting pipeline (4) is communicated with a carbon dioxide pipeline (3) between the large-angle valve and the carbon dioxide compressor, and the other end of the connecting pipeline (4) is communicated with a branch pipeline (2) at the rear side of the valve of the quick closing valve facing the carbon dioxide compressor.
3. The system of claim 2, wherein the system comprises: three valves are arranged on each branch pipeline (2), and the middle valve is a manual three-way valve.
4. The system for preventing the carbon dioxide pipeline from being blocked by crystallization in a urea production plant according to any one of claims 1 to 3, characterized in that: the valves in the system are all angle valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553122.1U CN216323918U (en) | 2021-10-22 | 2021-10-22 | Crystallization blockage preventing system for carbon dioxide pipeline in urea production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553122.1U CN216323918U (en) | 2021-10-22 | 2021-10-22 | Crystallization blockage preventing system for carbon dioxide pipeline in urea production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216323918U true CN216323918U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122553122.1U Active CN216323918U (en) | 2021-10-22 | 2021-10-22 | Crystallization blockage preventing system for carbon dioxide pipeline in urea production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216323918U (en) |
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2021
- 2021-10-22 CN CN202122553122.1U patent/CN216323918U/en active Active
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