CN214582771U - Micro-channel heat exchanger pulse flushing system - Google Patents
Micro-channel heat exchanger pulse flushing system Download PDFInfo
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- CN214582771U CN214582771U CN202120653865.3U CN202120653865U CN214582771U CN 214582771 U CN214582771 U CN 214582771U CN 202120653865 U CN202120653865 U CN 202120653865U CN 214582771 U CN214582771 U CN 214582771U
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Abstract
The utility model discloses a microchannel heat exchanger pulse rinse-system, this system belongs to closed cleaning system, operating pressure need not too high, in principle only need high-pressure heat exchanger resistance pressure drop can, must be less than heat exchanger design pressure, this system equipment is simple, and is easy and simple to handle, but full automatic operation, and owing to adopt that the pulsed washes, and the invariable pressure type of non-traditional constant flow washes, and wash the process and wash for the forward and cooperate with the back flush, dirt and residue drop at the shock in-process easily, the scavenging period is short, and is effectual.
Description
Technical Field
The utility model relates to a heat exchanger washs technical field, concretely relates to microchannel heat exchanger pulse rinse-system.
Background
Printed circuit plate heat exchangers (PCHE) belong to the category of microchannel plate heat exchangers. The PCHE has the advantages of compact structure, high temperature resistance, high pressure resistance, safety, reliability and the like, and is widely applied in the fields of refrigeration and air conditioning, petroleum and natural gas, nuclear industry, chemical industry, electric power industry and the like.
However, such heat exchangers also have some drawbacks in use, the main problems being that the PCHE heat exchanger channels are too small to be easily clogged and difficult to clean once clogged. The existing cleaning method is to wash the heat exchanger by cleaning liquid with extremely high pressure, the pressure is high, the washing time is long, and impurities in partial dead zones are still difficult to wash. Therefore, it is desirable to provide a cleaning apparatus and a cleaning method which are simpler and have a shorter cleaning time.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a microchannel heat exchanger pulse rinse-system, this system can be simple and convenient effectual washing microchannel heat exchanger to need not too high pressure, the scavenging period is short, and is effectual.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pulse flushing system of a micro-channel heat exchanger comprises a liquid storage tank 1, a high-pressure pump 2, a bypass pneumatic shutoff valve 3, a bypass pressure reducing valve 4, a high-pressure storage tank 5, a safety valve 6, a first forward flushing loop pneumatic shutoff valve 7, a forward flushing loop check valve 8, a first reverse flushing loop pneumatic shutoff valve 9, a reverse flushing loop check valve 10, a micro-channel heat exchanger 11, a first reverse flushing loop manual shutoff valve 12, a reverse flushing loop filter 13, a second reverse flushing loop manual shutoff valve 14, a second reverse flushing loop pneumatic shutoff valve 15, a first forward flushing loop manual shutoff valve 16, a forward flushing loop filter 17, a second forward flushing loop manual shutoff valve 18 and a second forward flushing loop pneumatic shutoff valve 19;
the liquid outlet of the liquid storage tank 1 is communicated with the inlet of the high-pressure pump 2, the outlet of the high-pressure pump 2 is divided into two paths, one path is communicated with the inlet of the bypass pneumatic shutoff valve 3, the outlet of the bypass pneumatic shutoff valve 3 is communicated with the inlet of the bypass pressure reducing valve 4, the outlet of the bypass pressure reducing valve 4 is communicated with the liquid return port of the liquid storage tank 1, the other path of the outlet of the high-pressure pump 2 is communicated with the inlet of the high-pressure storage tank 5, the top of the high-pressure storage tank 5 is provided with a safety valve 6, the outlet of the safety valve 6 is also communicated with the liquid return port of the liquid storage tank 1, the outlet of the high-pressure storage tank 5 is divided into two paths, one path is communicated with the inlet of the first forward flushing loop pneumatic shutoff valve 7, the outlet of the first forward flushing loop pneumatic shutoff valve 7 is communicated with the inlet of the forward flushing loop check valve 8, the outlet of the forward flushing loop check valve 8 is communicated with the forward flushing inlet of the micro-channel heat exchanger 11, and the forward flushing outlet of the micro-channel heat exchanger 11 is connected with the inlet of the first forward flushing loop manual check valve 16 The outlet of a first forward flushing loop manual stop valve 16 is communicated with the inlet of a forward flushing loop filter 17, the outlet of the forward flushing loop filter 17 is communicated with the inlet of a second forward flushing loop manual stop valve 18, the outlet of a second forward flushing loop manual stop valve 18 is communicated with the inlet of a second forward flushing loop pneumatic shut-off valve 19, the outlet of the second forward flushing loop pneumatic shut-off valve 19 is also communicated with a liquid return port of a liquid storage tank 1, the other path of the outlet of a high-pressure storage tank 5 is communicated with the inlet of a first reverse flushing loop pneumatic shut-off valve 9, the outlet of the first reverse flushing loop pneumatic shut-off valve 9 is communicated with the inlet of a reverse flushing loop check valve 10, the outlet of the reverse flushing loop check valve 10 is communicated with the reverse flushing inlet of a micro-channel heat exchanger 11, and the reverse flushing outlet of the micro-channel heat exchanger 11 is communicated with the inlet of a first reverse flushing loop manual stop valve 12, the outlet of the first reverse flushing loop manual stop valve 12 is communicated with the inlet of a reverse flushing loop filter 13, the outlet of the reverse flushing loop filter 13 is communicated with a second reverse flushing loop manual stop valve 14, the outlet of the second reverse flushing loop manual stop valve 14 is communicated with the inlet of a second reverse flushing loop pneumatic stop valve 15, and the outlet of the second reverse flushing loop pneumatic stop valve 15 is also communicated with a liquid return port of the liquid storage tank 1.
When the flushing starts, firstly, a bypass pneumatic shutoff valve 3, a bypass pressure reducing valve 4, a first forward flushing loop pneumatic shutoff valve 7, a first reverse flushing loop manual shutoff valve 12, a second reverse flushing loop manual shutoff valve 14, a first forward flushing loop manual shutoff valve 16, a second forward flushing loop manual shutoff valve 218 and a second forward flushing loop pneumatic shutoff valve 19 are opened, and a first reverse flushing loop pneumatic shutoff valve 9 and a second reverse flushing loop pneumatic shutoff valve 15 are closed; then the high pressure pump 2 is turned on to establish flow in the system; then the first positive flushing loop pneumatic cut-off valve 7 and the second positive flushing loop pneumatic cut-off valve 19 are closed to make all flushing liquid flow through the bypass; gradually adjusting the bypass reducing valve 4 to gradually increase the pressure of the high-pressure storage tank 5 until the preset flushing pressure; then, simultaneously opening a first positive flushing loop pneumatic shutoff valve 7 and a second positive flushing loop pneumatic shutoff valve 19, and simultaneously closing a bypass pneumatic shutoff valve 3 to finish one positive pulse flushing; when the pressure of the high-pressure storage tank 5 is reduced to a set value, simultaneously closing the first forward flushing loop pneumatic shutoff valve 7 and the second forward flushing loop pneumatic shutoff valve 19, and simultaneously opening the bypass pneumatic shutoff valve 3 to increase the pressure of the high-pressure storage tank 5 again until the preset flushing pressure is reached, and then repeating the forward flushing operation;
after 3-5 times of forward flushing, starting backward flushing, simultaneously closing the first forward flushing loop pneumatic shutoff valve 7 and the second forward flushing loop pneumatic shutoff valve 19, and simultaneously opening the bypass pneumatic shutoff valve 3 to increase the pressure of the high-pressure storage tank 5 again until the preset flushing pressure; then, simultaneously opening a first reverse flushing loop pneumatic shutoff valve 9 and a second reverse flushing loop pneumatic shutoff valve 15, and simultaneously closing a bypass pneumatic shutoff valve 3 to finish one-time reverse pulse flushing; and then continuing forward flushing for 3-5 times, and changing to reverse flushing again until the cleaning of the heat exchanger reaches the standard.
The utility model discloses following beneficial effect has:
a microchannel heat exchanger pulse rinse-system, this system belongs to closed cleaning system, operating pressure need not too high, in principle only need high pressure heat exchanger resistance pressure drop can, must be less than heat exchanger design pressure, this system equipment is simple, easy and simple to handle, but full automatic operation to owing to adopt the pulsed washes, and non-traditional constant flow constant pressure formula washes, and the washing process is washed for the forward and is cooperateed with the back flush, dirt and residue drop at the oscillation in-process easily, the scavenging period is short, and is effectual.
Drawings
Fig. 1 is a schematic structural diagram of the system of the present invention.
The device comprises a liquid storage tank 1, a high-pressure pump 2, a bypass pneumatic shutoff valve 3, a bypass pressure reducing valve 4, a high-pressure storage tank 5, a safety valve 6, a first forward flushing loop pneumatic shutoff valve 7, a forward flushing loop check valve 8, a first reverse flushing loop pneumatic shutoff valve 9, a reverse flushing loop check valve 10, a micro-channel heat exchanger 11, a first reverse flushing loop manual shutoff valve 12, a reverse flushing loop filter 13, a second reverse flushing loop manual shutoff valve 14, a reverse flushing loop pneumatic shutoff valve 15, a first forward flushing loop manual shutoff valve 16, a forward flushing loop filter 17, a second forward flushing loop manual shutoff valve 18 and a second forward flushing loop pneumatic shutoff valve 19.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the utility model relates to a microchannel heat exchanger pulse flushing system, including liquid storage pot 1, high-pressure pump 2, bypass pneumatic shutoff valve 3, bypass relief pressure valve 4, high-pressure storage pot 5, relief valve 6, the pneumatic shutoff valve 7 of first forward flushing loop, forward flushing loop check valve 8, the pneumatic shutoff valve 9 of first reverse flushing loop, reverse flushing loop check valve 10, microchannel heat exchanger 11, the manual stop valve 12 of first reverse flushing loop, reverse flushing loop filter 13, the manual stop valve 14 of second reverse flushing loop, the pneumatic shutoff valve 15 of second reverse flushing loop, the manual stop valve 16 of first forward flushing loop, forward flushing loop filter 17, the manual stop valve 18 of second forward flushing loop, the pneumatic shutoff valve 19 of second forward flushing loop;
the liquid outlet of the liquid storage tank 1 is communicated with the inlet of the high-pressure pump 2, the outlet of the high-pressure pump 2 is divided into two paths, one path is communicated with the inlet of the bypass pneumatic shutoff valve 3, the outlet of the bypass pneumatic shutoff valve 3 is communicated with the inlet of the bypass pressure reducing valve 4, the outlet of the bypass pressure reducing valve 4 is communicated with the liquid return port of the liquid storage tank 1, the other path of the outlet of the high-pressure pump 2 is communicated with the inlet of the high-pressure storage tank 5, the top of the high-pressure storage tank 5 is provided with a safety valve 6, the outlet of the safety valve 6 is also communicated with the liquid return port of the liquid storage tank 1, the outlet of the high-pressure storage tank 5 is divided into two paths, one path is communicated with the inlet of the first forward flushing loop pneumatic shutoff valve 7, the outlet of the first forward flushing loop pneumatic shutoff valve 7 is communicated with the inlet of the forward flushing loop check valve 8, the outlet of the forward flushing loop check valve 8 is communicated with the forward flushing inlet of the micro-channel heat exchanger 11, and the forward flushing outlet of the micro-channel heat exchanger 11 is connected with the inlet of the first forward flushing loop manual check valve 16 The outlet of a first forward flushing loop manual stop valve 16 is communicated with the inlet of a forward flushing loop filter 17, the outlet of the forward flushing loop filter 17 is communicated with the inlet of a second forward flushing loop manual stop valve 18, the outlet of a second forward flushing loop manual stop valve 18 is communicated with the inlet of a second forward flushing loop pneumatic shut-off valve 19, the outlet of the second forward flushing loop pneumatic shut-off valve 19 is also communicated with a liquid return port of a liquid storage tank 1, the other path of the outlet of a high-pressure storage tank 5 is communicated with the inlet of a first reverse flushing loop pneumatic shut-off valve 9, the outlet of the first reverse flushing loop pneumatic shut-off valve 9 is communicated with the inlet of a reverse flushing loop check valve 10, the outlet of the reverse flushing loop check valve 10 is communicated with the reverse flushing inlet of a micro-channel heat exchanger 11, and the reverse flushing outlet of the micro-channel heat exchanger 11 is communicated with the inlet of a first reverse flushing loop manual stop valve 12, the outlet of the first reverse flushing loop manual stop valve 12 is communicated with the inlet of a reverse flushing loop filter 13, the outlet of the reverse flushing loop filter 13 is communicated with a second reverse flushing loop manual stop valve 14, the outlet of the second reverse flushing loop manual stop valve 14 is communicated with the inlet of a second reverse flushing loop pneumatic stop valve 15, and the outlet of the second reverse flushing loop pneumatic stop valve 15 is also communicated with a liquid return port of the liquid storage tank 1.
As shown in fig. 1, the utility model relates to a method for flushing pulse flushing system of micro-channel heat exchanger, when the flushing begins, firstly, the bypass pneumatic shutoff valve 3, the bypass pressure reducing valve 4, the first forward flushing loop pneumatic shutoff valve 7, the first reverse flushing loop manual shutoff valve 12, the second reverse flushing loop manual shutoff valve 14, the first forward flushing loop manual shutoff valve 16, the second forward flushing loop manual shutoff valve 218 and the second forward flushing loop pneumatic shutoff valve 19 are opened, and the first reverse flushing loop pneumatic shutoff valve 9 and the second reverse flushing loop pneumatic shutoff valve 15 are closed; then the high pressure pump 2 is turned on to establish flow in the system; then the first positive flushing loop pneumatic cut-off valve 7 and the second positive flushing loop pneumatic cut-off valve 19 are closed to make all flushing liquid flow through the bypass; gradually adjusting the bypass reducing valve 4 to gradually increase the pressure of the high-pressure storage tank 5 until the preset flushing pressure; then, simultaneously opening a first positive flushing loop pneumatic shutoff valve 7 and a second positive flushing loop pneumatic shutoff valve 19, and simultaneously closing a bypass pneumatic shutoff valve 3 to finish one positive pulse flushing; when the pressure of the high-pressure storage tank 5 is reduced to a set value, simultaneously closing the first forward flushing loop pneumatic shutoff valve 7 and the second forward flushing loop pneumatic shutoff valve 19, and simultaneously opening the bypass pneumatic shutoff valve 3 to increase the pressure of the high-pressure storage tank 5 again until the preset flushing pressure is reached, and then repeating the forward flushing operation;
after 3-5 times of forward flushing, starting backward flushing, simultaneously closing the first forward flushing loop pneumatic shutoff valve 7 and the second forward flushing loop pneumatic shutoff valve 19, and simultaneously opening the bypass pneumatic shutoff valve 3 to increase the pressure of the high-pressure storage tank 5 again until the preset flushing pressure; then, simultaneously opening a first reverse flushing loop pneumatic shutoff valve 9 and a second reverse flushing loop pneumatic shutoff valve 15, and simultaneously closing a bypass pneumatic shutoff valve 3 to finish one-time reverse pulse flushing; and then continuing forward flushing for 3-5 times, and changing to reverse flushing again until the cleaning of the heat exchanger reaches the standard.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. A pulse flushing system of a micro-channel heat exchanger is characterized in that, the device comprises a liquid storage tank (1), a high-pressure pump (2), a bypass pneumatic shutoff valve (3), a bypass pressure reducing valve (4), a high-pressure storage tank (5), a safety valve (6), a first forward flushing loop pneumatic shutoff valve (7), a forward flushing loop check valve (8), a first reverse flushing loop pneumatic shutoff valve (9), a reverse flushing loop check valve (10), a micro-channel heat exchanger (11), a first reverse flushing loop manual shutoff valve (12), a reverse flushing loop filter (13), a second reverse flushing loop manual shutoff valve (14), a second reverse flushing loop pneumatic shutoff valve (15), a first forward flushing loop manual shutoff valve (16), a forward flushing loop filter (17), a second forward flushing loop manual shutoff valve (18) and a second forward flushing loop pneumatic shutoff valve (19);
the liquid outlet of the liquid storage tank (1) is communicated with the inlet of the high-pressure pump (2), the outlet of the high-pressure pump (2) is divided into two paths, one path is communicated with the inlet of the bypass pneumatic shutoff valve (3), the outlet of the bypass pneumatic shutoff valve (3) is communicated with the inlet of the bypass pressure reducing valve (4), the outlet of the bypass pressure reducing valve (4) is communicated with the liquid return port of the liquid storage tank (1), the other path of the outlet of the high-pressure pump (2) is communicated with the inlet of the high-pressure storage tank (5), the top of the high-pressure storage tank (5) is provided with a safety valve (6), the outlet of the safety valve (6) is also communicated with the liquid return port of the liquid storage tank (1), the outlet of the high-pressure storage tank (5) is divided into two paths, one path is communicated with the inlet of the first forward flushing loop pneumatic shutoff valve (7), the outlet of the first forward flushing loop pneumatic shutoff valve (7) is communicated with the inlet of the forward flushing loop check valve (8), an outlet of a check valve (8) of the forward flushing loop is communicated with a forward flushing inlet of a micro-channel heat exchanger (11), a forward flushing outlet of the micro-channel heat exchanger (11) is communicated with an inlet of a manual stop valve (16) of a first forward flushing loop, an outlet of the manual stop valve (16) of the first forward flushing loop is communicated with an inlet of a filter (17) of the forward flushing loop, an outlet of the filter (17) of the forward flushing loop is communicated with an inlet of a manual stop valve (18) of a second forward flushing loop, an outlet of the manual stop valve (18) of the second forward flushing loop is communicated with an inlet of a pneumatic stop valve (19) of the second forward flushing loop, an outlet of the pneumatic stop valve (19) of the second forward flushing loop is also communicated with a liquid return port of a liquid storage tank (1), and the other path of an outlet of a high-pressure storage tank (5) is communicated with an inlet of the pneumatic stop valve (9) of the first reverse flushing loop, the outlet of the first back flushing loop pneumatic shutoff valve (9) is communicated with the inlet of a back flushing loop check valve (10), the outlet of the back flushing loop check valve (10) is communicated with the back flushing inlet of the micro-channel heat exchanger (11), the back flushing outlet of the micro-channel heat exchanger (11) is communicated with the inlet of a first back flushing loop manual shutoff valve (12), the outlet of the first back flushing loop manual shutoff valve (12) is communicated with the inlet of a back flushing loop filter (13), the outlet of the back flushing loop filter (13) is communicated with a second back flushing loop manual shutoff valve (14), the outlet of the second back flushing loop manual shutoff valve (14) is communicated with the inlet of a second back flushing loop pneumatic shutoff valve (15), and the outlet of the second back flushing loop pneumatic shutoff valve (15) is also communicated with the liquid return port of the liquid storage tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653865.3U CN214582771U (en) | 2021-03-31 | 2021-03-31 | Micro-channel heat exchanger pulse flushing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653865.3U CN214582771U (en) | 2021-03-31 | 2021-03-31 | Micro-channel heat exchanger pulse flushing system |
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| Publication Number | Publication Date |
|---|---|
| CN214582771U true CN214582771U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120653865.3U Active CN214582771U (en) | 2021-03-31 | 2021-03-31 | Micro-channel heat exchanger pulse flushing system |
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|---|---|
| CN (1) | CN214582771U (en) |
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2021
- 2021-03-31 CN CN202120653865.3U patent/CN214582771U/en active Active
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