CN218583881U - Improve acid dip pickle of heat exchanger heat transfer effect - Google Patents
Improve acid dip pickle of heat exchanger heat transfer effect Download PDFInfo
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- CN218583881U CN218583881U CN202222544345.6U CN202222544345U CN218583881U CN 218583881 U CN218583881 U CN 218583881U CN 202222544345 U CN202222544345 U CN 202222544345U CN 218583881 U CN218583881 U CN 218583881U
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- pickling
- dosing
- dosing tank
- heat exchanger
- surface cooler
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Abstract
The utility model discloses a pickling device for improving the heat exchange effect of a heat exchanger, belonging to the technical field of heat exchanger cleaning; the pickling device comprises a surface cooler and a pickling dosing tank; the liquid outlet of the pickling dosing tank is connected to the back-flushing valve of the circulating water-feeding pipeline of the surface cooler; a dosing pump is arranged at a liquid outlet of the pickling dosing tank; a back flush valve of a circulating water back-flow pipeline of the surface cooler is connected to a back-flow port of the pickling dosing tank through a pipeline; the surface cooler circulating water return pipeline is connected with a pH value detection device; the pickling dosing tank is provided with a stirring device and is provided with a pickling agent dosing port, a corrosion inhibitor dosing port and a water inlet; the utility model realizes the on-line acid washing after the cooling water heat exchanger is scaled, does not need to stop the treatment, and can not affect the yield; the device saves manpower and material resources, improves the working efficiency and saves precious time for the boiler to be ignited again.
Description
Technical Field
The utility model relates to a heat exchanger belt cleaning device specifically is an improve pickling plant of heat exchanger heat transfer effect.
Background
The work of the impulse turbine is the process of converting the heat energy of the high pressure steam from the boiler into kinetic energy, which occurs in the nozzle, and the working blades only convert the kinetic energy of the steam into mechanical energy and drive the main shaft of the compressor to rotate together. Steam from a pipe network enters a cylinder through a main steam valve and a steam regulating valve of a steam turbine, after a rotor is driven to do work, steam pressure and temperature are reduced to 10KPa and 49 ℃, the steam pressure and the temperature are discharged into a surface condenser to be condensed into water, part of non-condensable gas is pumped into a steam extraction cooler through a steam extraction device, after the condensed water is recovered, the rest non-condensable gas is discharged into the atmosphere, steam condensate is pumped out of a hot well through a condensate pump and is sent to a condensate pipe network, and finally the steam is sent to a desalted water working section. Because the load of the surface condenser is high and the total alkali and calcium hardness of the circulating water are high, the surface condenser is scaled, the vacuum degree of the surface condenser is slowly reduced, and the load of a unit is influenced when the vacuum degree is reduced to a certain degree. The heat exchanger scaling needs to be stopped to carry out high-pressure cleaning on the heat exchanger under normal conditions, so that the influence on the yield is bound to be caused, and therefore, the poor scaling heat exchange effect of the surface condenser becomes one of the hidden dangers of restricting the high-load safety, stability and long-period operation of a synthetic ammonia device and even the whole system.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides an improve pickling device of heat exchanger heat transfer effect, solves and washs the heat exchanger under the circumstances of not stopping.
In order to achieve the purpose, the utility model is realized by the following technical scheme.
A pickling device for improving the heat exchange effect of a heat exchanger comprises a surface cooler and a pickling dosing tank; the liquid outlet of the pickling dosing tank is connected to the back flush valve of the circulating water pipeline of the surface cooler; a dosing pump is arranged at a liquid outlet of the pickling dosing tank; a back flush valve of a circulating water return pipeline of the surface cooler is connected to a water return port of the pickling dosing tank through a pipeline; the surface cooler circulating water return pipeline is connected with a pH value detection device; the pickling dosing tank is provided with a stirring device, and the pickling dosing tank is provided with a pickling agent dosing port, a corrosion inhibitor dosing port and a water inlet.
Further, the liquid outlet is arranged at the bottom of the pickling dosing tank.
Furthermore, the pickling agent dosing port, the corrosion inhibitor dosing port and the water inlet are arranged at the top of the pickling dosing box.
Furthermore, a dosing platform is arranged on one side of the pickling dosing tank.
Furthermore, the pickling dosing tank is arranged on the ground near the surface cooler.
Furthermore, a water quality monitoring device is arranged on the circulating water return pipeline of the surface cooler.
The utility model discloses produced beneficial effect does for prior art:
the utility model realizes the on-line acid washing after the cooling water heat exchanger is scaled, does not need to stop the treatment, and can not affect the yield; manpower and material resources are saved, the working efficiency is improved, and precious time is saved for the secondary ignition of the boiler; the device avoids dust flying in the feeding process of high-pressure cleaning, and pollutions and damages to the environment, equipment and workers.
Drawings
FIG. 1 is a schematic structural view of the pickling apparatus of the present invention.
In the figure, 1-a surface cooler, 2-an acid pickling dosing tank, 3-a circulating water upper water pipeline, 4-a back flush valve, 5-a dosing pump, 6-a circulating water return pipeline, 7-a pH value detection device, 8-a stirring device, 9-a pickling agent dosing port, 10-a corrosion inhibitor dosing port, 11-a water inlet, 12-a dosing platform and 13-a water quality monitoring device.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the embodiment provides a pickling device for improving the heat exchange effect of a heat exchanger, which includes a surface cooler 1 and a pickling dosing tank 2; the pickling dosing tank 2 is arranged on the ground near the surface cooler 1; the pickling dosing tank 2 is made of a 2 x 2 stainless steel water tank; the bottom of the pickling dosing tank 2 is provided with a DN50 small hole as a liquid outlet; the top of the pickling dosing tank 2 is provided with a pickling agent dosing port 9, a corrosion inhibitor dosing port 10 and a water inlet 11; the pickling dosing tank 2 is provided with a stirring device 8.
The liquid outlet of the pickling dosing tank 2 is connected to a back-flushing valve 4 of a circulating water-feeding pipeline 3 of the surface cooler 1; a dosing pump 5 is arranged at a liquid outlet of the pickling dosing tank 2; a back flush valve 4 of a circulating water return pipeline 6 of the surface cooler 1 is connected to a water return port of the pickling dosing tank 2 through a pipeline; the circulating water return pipeline 6 of the surface cooler 1 is connected with a pH value detection device 7 and a water quality monitoring device 13; a dosing platform 12 is arranged on one side of the acid washing dosing tank 2.
The pH value detection device 7 and the water quality monitoring device 13 are both existing instruments and are respectively used for detecting the pH index and the conventional water quality index of return water.
The pickling agent and the corrosion inhibitor are purchased in advance and placed on the site of the ammonia synthesis surface cooler.
The specific working process is as follows: and opening a back flush valve 4 of a circulating water return pipeline 6, firstly enabling a part of return water to enter a pickling dosing tank 2, starting a pickling water pump when the liquid level is 50%, slowly opening the back flush valve 4 of a circulating water upper pipeline 3 of the surface cooler 1, and establishing water circulation. The acid-washing dosing tank 2 is filled with acid lotion, and every minute is two bags; and adding a barrel of corrosion inhibitor every 20 minutes or so, and continuously operating for one hour. The vacuum change of the surface cooler 1 is noticed during the pickling. And (3) strengthening the monitoring of the circulating water quality during the pickling period, and adding caustic soda flakes if necessary to maintain the pH of the circulating water within an index range. And slowly recovering the vacuum to a normal index of-80 kpa, and finishing the acid washing. The utility model realizes the on-line acid washing after the cooling water heat exchanger is scaled, does not need to stop the treatment, and can not affect the yield; the device saves manpower and material resources, improves the working efficiency and saves precious time for the boiler to be ignited again.
The above description is further detailed for the present invention with reference to specific preferred embodiments, and it is not considered that the specific embodiments of the present invention are limited thereto, and it will be understood by those skilled in the art that the present invention can be implemented by a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all of them should be considered as belonging to the present invention, which is determined by the appended claims.
Claims (6)
1. A pickling device for improving the heat exchange effect of a heat exchanger is characterized by comprising a surface cooler (1) and a pickling dosing tank (2); the liquid outlet of the pickling dosing tank (2) is connected to a back-flushing valve (4) of a circulating water upper pipeline (3) of the surface cooler (1); a dosing pump (5) is arranged at a liquid outlet of the pickling dosing tank (2); a back flush valve (4) of a circulating water back water pipeline (6) of the surface cooler (1) is connected to a back water inlet of the pickling dosing tank (2) through a pipeline; a circulating water return pipeline (6) of the surface air cooler (1) is connected with a pH value detection device (7); the pickling dosing tank (2) is provided with a stirring device (8), and the pickling dosing tank (2) is provided with a pickling agent dosing port (9), a corrosion inhibitor dosing port (10) and a water inlet (11).
2. The pickling device for improving the heat exchange effect of the heat exchanger according to claim 1, wherein the liquid outlet is arranged at the bottom of the pickling dosing tank (2).
3. The pickling device for improving the heat exchange effect of the heat exchanger according to claim 1, wherein the pickling agent dosing port (9), the corrosion inhibitor dosing port (10) and the water inlet (11) are arranged at the top of the pickling dosing tank (2).
4. The acid pickling device for improving the heat exchange effect of the heat exchanger according to claim 1, wherein a chemical adding platform (12) is arranged on one side of the acid pickling chemical adding box (2).
5. The pickling device for improving the heat exchange effect of the heat exchanger according to claim 1, wherein the pickling dosing tank (2) is arranged on the ground near the surface cooler (1).
6. The pickling device for improving the heat exchange effect of the heat exchanger according to claim 1, wherein a water quality monitoring device (13) is arranged on a circulating water return pipeline (6) of the surface cooler (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222544345.6U CN218583881U (en) | 2022-09-26 | 2022-09-26 | Improve acid dip pickle of heat exchanger heat transfer effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222544345.6U CN218583881U (en) | 2022-09-26 | 2022-09-26 | Improve acid dip pickle of heat exchanger heat transfer effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218583881U true CN218583881U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222544345.6U Active CN218583881U (en) | 2022-09-26 | 2022-09-26 | Improve acid dip pickle of heat exchanger heat transfer effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218583881U (en) |
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2022
- 2022-09-26 CN CN202222544345.6U patent/CN218583881U/en active Active
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