CN216694646U - Online back flushing device of shell side circulating water cooler - Google Patents
Online back flushing device of shell side circulating water cooler Download PDFInfo
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- CN216694646U CN216694646U CN202123204475.7U CN202123204475U CN216694646U CN 216694646 U CN216694646 U CN 216694646U CN 202123204475 U CN202123204475 U CN 202123204475U CN 216694646 U CN216694646 U CN 216694646U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses an online back flushing device of a shell side circulating water cooler, which comprises a cooler, wherein the inlet and outlet ends of the shell side of the cooler are respectively connected with a forward water inlet pipe and a forward water outlet pipe, the forward water inlet pipe and the forward water outlet pipe are respectively provided with a forward water inlet valve and a forward water outlet valve, a back flushing water inlet pipe is respectively connected with the forward water inlet pipe and the forward water outlet pipe, and the back flushing water inlet pipe is connected with a back water inlet valve and an air inlet pipe; the upper end and the lower end of the reverse washing water outlet pipe are respectively connected with the forward water inlet pipe and the forward water outlet pipe, and the reverse washing water outlet pipe is at least provided with a reverse water outlet valve.
Description
Technical Field
The utility model relates to a back flushing device, in particular to an online back flushing device of a shell side circulating water cooler, and belongs to the field of petrochemical industry.
Background
The circulating water cooler is widely applied to the field of petrochemical industry, and has the functions of exchanging heat with process materials and taking away unnecessary heat, so that the process materials are reduced to a proper temperature to meet production requirements.
When the shell pass circulating water cooler operates, because solid impurities such as silt, dust, debris and the like inevitably exist in an open circulating water system, the solid impurities and colloidal hydroxide, corrosion products, oil stains and the like in circulating water are deposited on baffle plates of the shell pass circulating water cooler and the outer surfaces of tube bundles nearby the baffle plates, so that the heat exchange efficiency of the cooler is reduced, the production energy consumption is increased, and the tube bundles of the cooler are corroded and perforated due to scale during long-time operation, so that materials are leaked, and the whole circulating water system is polluted.
The solid impurities can be flushed out of the cooler by adopting back flushing, and can be prevented from being deposited on the baffle plate of the shell-side circulating water cooler and the outer surface of a tube bundle nearby the baffle plate together with colloidal hydroxides, corrosion products, oil stains and the like. The existing backwashing either needs to cut off the cooler for off-line cleaning or discharges solid impurities into a circulating water system during on-line backwashing, and causes pollution and blockage to other circulating water coolers while causing impact on the circulating water system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides the shell side circulating water cooler on-line back flushing device which has the technical characteristics that the problem of scaling on the outer surface of a baffle plate-level tube bundle caused by solid impurities of the shell side circulating water cooler can be solved, and pollution, blockage and the like to other circulating water coolers can be avoided.
In order to realize the purpose, the utility model is realized by the following technical scheme:
an online back flushing device of a shell pass circulating water cooler comprises a cooler with circulating water introduced, wherein the inlet end of the shell pass of the cooler is connected with a forward water inlet pipe, a forward water inlet valve is arranged on the forward water inlet pipe, the outlet end of the shell pass of the cooler is connected with a forward water outlet pipe, a forward water outlet valve is arranged on the forward water outlet pipe, the upper end and the lower end of the back flushing water inlet pipe are respectively connected with the forward water inlet pipe and the forward water outlet pipe, the connection point of the back flushing water inlet pipe and the forward water inlet pipe is positioned at the inlet end of the forward water inlet valve, the connection point of the back flushing water inlet pipe and the forward water outlet pipe is positioned at the inlet end of the forward water outlet valve, and the back flushing water inlet pipe is connected with a back water inlet valve and an air inlet pipe;
the upper end and the lower end of the back flushing water outlet pipe are respectively connected with the forward water inlet pipe and the forward water outlet pipe, the connection point of the back flushing water outlet pipe and the forward water inlet pipe is positioned at the outlet end of the forward water inlet valve, the connection point of the back flushing water outlet pipe and the forward water outlet pipe is positioned at the outlet end of the forward water outlet valve, and at least one back water outlet valve is arranged on the back flushing water outlet pipe.
Preferably, the back flushing water outlet pipe is connected with an air outlet pipe, a drain pipe, a filter and a filter outlet valve from top to bottom, and the back water outlet valve is positioned on the back flushing water outlet pipe between the filter and the drain pipe.
Preferably, the air inlet pipe is provided with an air inlet valve, the air outlet pipe is provided with an air outlet valve, and the drain pipe is provided with a drain valve.
Preferably, the cooler is provided in plurality, and the plurality of coolers are connected in series.
Preferably, an air flow regulator is connected to the air inlet pipe.
Preferably, each valve is an electromagnetic touch valve, and each valve is connected with a controller so as to realize intelligent control.
Has the advantages that: high-pressure carbon dioxide gas can be connected, the carbon dioxide gas and the reverse flushing water together realize online reverse flushing, solid impurities deposited on the baffle plate and the outer surface of the tube bundle nearby the baffle plate are reversely flushed out of the cooler, the problem of scaling of the baffle plate of the tube pass circulating water cooler and the outer surface of the tube bundle is solved, flushed impurities can be prevented from entering a circulating water system, and pollution and blockage to other circulating water coolers are avoided; simple structure, easy operation, the practicality is strong, is fit for using widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following examples.
The utility model mainly aims at a circulating water cooler. The problem of baffle plate and tube bank surface scale deposit that the solid impurity of current shell side circulating water cooler arouses is solved to the impurity that can prevent to wash gets into circulating water system, and avoids causing pollution and jam to other circulating water coolers, and application prospect is extensive.
As shown in fig. 1, a specific embodiment of an online back flushing device of a shell-side circulating water cooler is provided, which includes a cooler 5 for introducing circulating water, an inlet end of a shell side of the cooler 5 is connected to a forward water inlet pipe 1, the forward water inlet pipe 1 is provided with a forward water inlet valve 3, an outlet end of the shell side of the cooler 5 is connected to a forward water outlet pipe 2, the forward water outlet pipe 2 is provided with a forward water outlet valve 4, an upper end and a lower end of a back flushing water inlet pipe 6 are respectively connected to the forward water inlet pipe 1 and the forward water outlet pipe 2, a connection point of the back flushing water inlet pipe 6 and the forward water inlet pipe 1 is located at an inlet end of the forward water inlet valve 3, a connection point of the back flushing water inlet pipe 6 and the forward water outlet pipe 2 is located at an inlet end of the forward water outlet valve 4, and the back flushing water inlet pipe 6 is connected to a back water inlet valve 8 and an air inlet pipe 12, the air inlet pipe 12 can be controlled to open and close;
the upper end and the lower end of the back flushing water outlet pipe 7 are respectively connected with the forward water inlet pipe 1 and the forward water outlet pipe 2, the connection point of the back flushing water outlet pipe 7 and the forward water inlet pipe 1 is positioned at the outlet end of the forward water inlet valve 3, the connection point of the back flushing water outlet pipe 7 and the forward water outlet pipe 2 is positioned at the outlet end of the forward water outlet valve 4, and at least one back water outlet valve 9 is arranged on the back flushing water outlet pipe 7.
In a preferred embodiment, from top to bottom, the back-flushing water outlet pipe 7 is further connected with an air outlet pipe 14, a water outlet pipe 16, a filter 10 and a filter outlet valve 11, and the back-flushing water outlet valve 9 is located on the back-flushing water outlet pipe 7 between the filter 10 and the water outlet pipe 16.
In a preferred embodiment, the air inlet pipe 12 is provided with an air inlet valve 13, the air outlet pipe 14 is provided with an air outlet valve 15, and the water outlet pipe 16 is provided with a water discharge valve 17.
In a preferred embodiment, the cooler 5 is provided in plurality, and the plurality of coolers 5 are connected in series.
In a preferred embodiment, an air flow regulator is connected to the air inlet pipe 12.
In a preferred embodiment, each valve is an electromagnetic touch valve, and each valve is connected with a controller for intelligent control.
The working process is as follows: when the filter is in a normal working state, the forward water inlet valve 3 and the forward water outlet valve 4 are in an open state, and the reverse water inlet valve 8, the reverse water outlet valve 9, the filter outlet valve 11, the drain valve 13, the gas outlet valve 15 and the drain valve 17 are in a closed state;
when the reverse flushing is carried out, the forward water inlet valve 3 and the forward water outlet valve 4 are closed, the reverse water inlet valve 8, the reverse water outlet valve 9, the filter outlet valve 11, the air inlet valve 13 and the air outlet valve 15 are opened, and high-pressure carbon dioxide gas is connected into an air inlet pipe 12, at the moment, reverse flushing water in a forward water inlet pipe 1 passes through a reverse water inlet valve 8 and then is mixed with the carbon dioxide gas through a reverse flushing water inlet pipe 6, the carbon dioxide gas and the reverse flushing water enter a shell pass of a circulating water cooler 5 through the reverse flushing water inlet pipe 6 and a forward water outlet pipe 2, solid impurities attached to the outer surfaces of a baffle plate and a pipe bundle are stripped by using gas stirring, then the solid impurities enter a circulating water system through the forward water inlet pipe 1, a reverse flushing water outlet pipe 7, a reverse water outlet valve 9, a filter 10, a filter outlet valve 11 and a forward water outlet pipe 2, the gas is discharged through a gas discharge valve 15, and the flushing is completed by repeated circulation. When the filter is blocked, closing the reverse water outlet valve 9 and the filter outlet valve 11, opening the water discharge valve 16, discharging the reverse washing water out of the system, and simultaneously removing the filter for replacement or cleaning; when the back flushing is finished, the back water inlet valve 8, the back water outlet valve 9, the filter outlet valve 11, the air inlet valve 13 and the air outlet valve 15 are closed, the air source is cut off, the forward water inlet valve 3 and the forward water outlet valve 4 are opened, and the normal working state is recovered. The time of the back flushing can be determined according to the heat exchange effect, and the back flushing can be performed regularly according to the actual production requirement.
Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.
Claims (6)
1. An on-line back flushing device of a shell side circulating water cooler is characterized by comprising a cooler (5) for introducing circulating water, the inlet end of the shell pass of the cooler (5) is connected with a forward water inlet pipe (1), a forward water inlet valve (3) is arranged on the forward water inlet pipe (1), the outlet end of the shell pass of the cooler (5) is connected with a forward water outlet pipe (2), a forward water outlet valve (4) is arranged on the forward water outlet pipe (2), the upper end and the lower end of the back flushing water inlet pipe (6) are respectively connected with the forward water inlet pipe (1) and the forward water outlet pipe (2), the connecting point of the reverse flushing water inlet pipe (6) and the forward water inlet pipe (1) is positioned at the inlet end of the forward water inlet valve (3), the connecting point of the reverse flushing water inlet pipe (6) and the forward water outlet pipe (2) is positioned at the inlet end of the forward water outlet valve (4), the reverse flushing water inlet pipe (6) is connected with a reverse water inlet valve (8) and an air inlet pipe (12);
the upper end and the lower end of the back flushing water outlet pipe (7) are respectively connected with the forward water inlet pipe (1) and the forward water outlet pipe (2), the connection point of the back flushing water outlet pipe (7) and the forward water inlet pipe (1) is positioned at the outlet end of the forward water inlet valve (3), the connection point of the back flushing water outlet pipe (7) and the forward water outlet pipe (2) is positioned at the outlet end of the forward water outlet valve (4), and at least one back water outlet valve (9) is arranged on the back flushing water outlet pipe (7).
2. The shell side circulating water cooler online back flushing device according to claim 1, characterized in that from top to bottom, the back flushing water outlet pipe (7) is further connected with an air outlet pipe (14), a water outlet pipe (16), a filter (10) and a filter outlet valve (11), and the back flushing water outlet valve (9) is positioned on the back flushing water outlet pipe (7) between the filter (10) and the water outlet pipe (16).
3. A shell side circulating water cooler on-line back flushing device according to claim 2, characterized in that an air inlet valve (13) is arranged on the air inlet pipe (12), an air outlet valve (15) is arranged on the air outlet pipe (14), and a drain valve (17) is arranged on the drain pipe (16).
4. A shell side circulating water cooler on-line back flushing device according to claim 1, 2 or 3, characterized in that the cooler (5) is provided in plurality, and a plurality of coolers (5) are connected in series.
5. The shell side circulating water cooler on-line back flushing device as claimed in claim 1, characterized in that an air flow regulator is connected to the air inlet pipe (12).
6. The shell side circulating water cooler online back flushing device of claim 3, wherein each valve is an electromagnetic touch valve, and each valve is connected with a controller for intelligent control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204475.7U CN216694646U (en) | 2021-12-20 | 2021-12-20 | Online back flushing device of shell side circulating water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204475.7U CN216694646U (en) | 2021-12-20 | 2021-12-20 | Online back flushing device of shell side circulating water cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694646U true CN216694646U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123204475.7U Active CN216694646U (en) | 2021-12-20 | 2021-12-20 | Online back flushing device of shell side circulating water cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216694646U (en) |
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2021
- 2021-12-20 CN CN202123204475.7U patent/CN216694646U/en active Active
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