CN215064030U - Condenser online cleaning device - Google Patents
Condenser online cleaning device Download PDFInfo
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- CN215064030U CN215064030U CN202121424394.5U CN202121424394U CN215064030U CN 215064030 U CN215064030 U CN 215064030U CN 202121424394 U CN202121424394 U CN 202121424394U CN 215064030 U CN215064030 U CN 215064030U
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Abstract
The utility model relates to a chemistry and chemical engineering technical field, concretely relates to condenser on-line cleaning device. The tower top condenser is characterized by comprising a tower top condenser, wherein a circulating water inlet pipe is arranged at an inlet of the tower top condenser, and a circulating water inlet valve is arranged on the circulating water inlet pipe; the washing machine is characterized in that the circulating water outlet pipe between the valve six and the valve three is connected with an inlet of a washing liquid cooler, and an outlet of the washing liquid cooler is connected with a washing liquid storage tank; the cleaning solution storage tank is connected with the tower top condenser through a liquid injection pump. The utility model discloses a top of tower condenser's among the MTBE device catalytic distillation production unit online cleaning effectively avoids wasing the influence that causes the upper and lower reaches device of technology because of shutting down.
Description
Technical Field
The utility model relates to a chemistry and chemical engineering technical field, concretely relates to condenser on-line cleaning device.
Background
In the chemical production industry, shutdown cleaning or tube bundle replacement is generally adopted for solving the problems of scaling, tube bundle blockage and the like of the heat exchanger, however, for some large-scale and continuous production chemical enterprises, shutdown of a unit where the heat exchanger is located may seriously affect production balance and production benefit.
In the MTBE catalytic distillation production process, the circulating water control valve is in a full-open state for a long time, and the overhead condenser is continuously put into use for a long time, so that scaling and poor heat exchange effect of the overhead condenser are easily caused. When the temperature of the circulating water system is higher than 26 ℃, the temperature of the medium cooled by the overhead condenser can not meet the process operation requirement of the device. In addition, the overhead condenser in the process flow has no spare equipment, and shutdown treatment is usually required if the tube bundle is cleaned or replaced, and the shutdown can seriously affect the production balance and the production benefit of an enterprise.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a condenser online cleaning device, to the not enough of above-mentioned problem.
The utility model discloses a realize through following technical scheme: an online cleaning device for a condenser comprises a tower top condenser, wherein a circulating water inlet pipe is arranged at an inlet of the tower top condenser, and a circulating water inlet valve is arranged on the circulating water inlet pipe; the washing machine is characterized in that the circulating water outlet pipe between the valve six and the valve three is connected with an inlet of a washing liquid cooler, and an outlet of the washing liquid cooler is connected with a washing liquid storage tank; the cleaning solution storage tank is connected with the tower top condenser through a liquid injection pump.
Preferably, a cooling liquid inlet of the cleaning liquid cooler is connected with fire-fighting cooling water through a pipeline, and a cooling liquid outlet of the cleaning liquid cooler is discharged to the outside through a pipeline.
Preferably, a pH meter and a corrosion test piece are arranged in the cleaning solution storage tank.
Preferably, a liquid inlet valve is arranged on a pipeline connecting the liquid injection pump and the tower top condenser.
The utility model has the advantages that: the utility model realizes the online cleaning of the tower top condenser in the MTBE device catalytic distillation production process, effectively avoids the influence on the upstream and downstream devices of the process caused by shutdown cleaning, can ensure the normal maintenance of the production balance of the whole plant, and ensures the production benefit of the company; through on-line cleaning, the heat exchange effect can be improved, the circulating water consumption can be saved by about 100 tons/hour, and the processing cost is reduced by 35 yuan/hour.
Drawings
FIG. 1 is a process flow diagram of the present invention;
in the attached figure, 1 a tower top condenser, 2 a first circulating water outlet pipe section, 21 a valve I, 3 a second circulating water outlet pipe section, 31 a valve II, 4 a third circulating water outlet pipe section, 41 a valve III, 42 a valve VI, 5 a cleaning liquid cooler, 6 a cleaning liquid storage tank, 61 a corrosion test piece, 7 a liquid injection pump, 8 a circulating water inlet valve and 9 a liquid inlet valve.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the following embodiments are combined to further explain the technical solutions of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the condenser online cleaning device comprises a tower top condenser 1, wherein a circulating water inlet pipe is arranged at an inlet of the tower top condenser 1, and a circulating water inlet valve 8 is arranged on the circulating water inlet pipe; the outlet is provided with a circulating water outlet pipe, the circulating water outlet pipe comprises a first circulating water outlet pipe section 2, a second circulating water outlet pipe section 3 and a third circulating water outlet pipe section 4, a first valve 21 is arranged on the first circulating water outlet pipe section 2, a second valve 31 is arranged on the second circulating water outlet pipe section 3, a sixth valve 42 and a third valve 41 are sequentially arranged on the third circulating water outlet pipe section 4, in order to realize online cleaning of the tower top condenser 1, a short section is detached at the position of the circulating water outlet pipe between the sixth valve 42 and the third valve 41 and connected with an inlet of a cleaning liquid cooler 5, and an outlet of the cleaning liquid cooler 5 is connected with a cleaning liquid storage tank 6; the cleaning solution storage tank 6 is connected to the overhead condenser 1 via a liquid injection pump 7. The cooling liquid inlet of the cleaning liquid cooler 5 is connected with fire-fighting water through a pipeline for cooling, and the cooling liquid outlet is discharged to the outside through a pipeline. The cleaning solution storage tank 6 is internally provided with a corrosion test piece 61, and the corrosion caused to the equipment is judged by comparing the weight of the corrosion test piece 61 before and after online cleaning. A liquid inlet valve 9 is arranged on a pipeline connecting the liquid injection pump 7 and the tower top condenser 1.
A short section is detached from a circulating water outlet pipe at the position of the six 42 of the valve, a hole is formed at the position of a circulating water inlet valve 8, a liquid inlet valve 9 is added to form a circulating cleaning system, and the circulating cleaning system is flushed with water firstly, then is cleaned chemically, and is flushed with water again after being neutralized and discharged.
Before cleaning, the processing amount is reduced to maintain low-volume production, the load of a condenser 1 at the top of the tower is reduced, the injection amount of a fresh desulfurizer in a desulfurization facility is reduced, the temperature of the whole tower is reduced, and the catalytic distillation tower is operated by adopting a low reflux ratio.
During cleaning, firstly, filling liquid into the cleaning liquid storage tank 6, then opening the liquid inlet valve 9 and the valve six 42, starting the liquid injection pump 7, closing the valve one 21, the valve two 31, the valve three 41 and the circulating water inlet valve 8, and circularly cleaning the overhead condenser, namely, cleaning liquid is cooled by the cleaning liquid cooler 5, enters the cleaning liquid storage tank 6, and is pumped to the overhead condenser through the liquid injection pump 7 to exchange heat with overhead distillate media; the cleaning liquid cooler 5 uses fire water to exchange heat with the cleaning liquid passing through the cleaning liquid cooler 5.
A PH meter and a corrosion test piece 61 are arranged in the cleaning solution storage tank 6, the concentration of the cleaning solution is adjusted through the detected PH value, and the corrosion condition of the cleaning solution on the equipment is detected by using the corrosion test piece 61.
And (3) observing the change condition of the pH value of the cleaning liquid to determine the cleaning time, closing the liquid inlet valve 9 and the valve six 42 after cleaning is finished, and opening the valve I21, the valve II 31 and the circulating water inlet valve 8.
The above embodiments are only specific examples of the present invention, and are not intended to limit the present invention in any way, and those skilled in the art may modify or modify the above embodiments by using the technical content disclosed above and equivalent embodiments. However, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the present invention.
Claims (4)
1. An online cleaning device for a condenser comprises a tower top condenser (1), wherein a circulating water inlet pipe is arranged at an inlet of the tower top condenser (1), and a circulating water inlet valve (8) is arranged on the circulating water inlet pipe; the washing machine is characterized in that the circulating water outlet pipe between the six valves (42) and the three valves (41) is connected with an inlet of a washing liquid cooler (5), and an outlet of the washing liquid cooler (5) is connected with a washing liquid storage tank (6); the cleaning solution storage tank (6) is connected with the overhead condenser (1) through a liquid injection pump (7).
2. The on-line cleaning device for the condenser is characterized in that a cooling liquid inlet of the cleaning liquid cooler (5) is connected with fire fighting cooling water through a pipeline, and a cooling liquid outlet is discharged to the outside through the pipeline.
3. The on-line cleaning device for the condenser as claimed in claim 1, wherein a pH meter and a corrosion test piece (61) are arranged in the cleaning solution storage tank (6).
4. The on-line cleaning device for the condenser is characterized in that a liquid inlet valve (9) is arranged on a pipeline connecting the liquid injection pump (7) and the overhead condenser (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121424394.5U CN215064030U (en) | 2021-06-25 | 2021-06-25 | Condenser online cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121424394.5U CN215064030U (en) | 2021-06-25 | 2021-06-25 | Condenser online cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215064030U true CN215064030U (en) | 2021-12-07 |
Family
ID=79229197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121424394.5U Active CN215064030U (en) | 2021-06-25 | 2021-06-25 | Condenser online cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215064030U (en) |
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2021
- 2021-06-25 CN CN202121424394.5U patent/CN215064030U/en active Active
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