CN217785955U - Heat exchanger belt cleaning device of easy to maintain - Google Patents
Heat exchanger belt cleaning device of easy to maintain Download PDFInfo
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- CN217785955U CN217785955U CN202221363045.1U CN202221363045U CN217785955U CN 217785955 U CN217785955 U CN 217785955U CN 202221363045 U CN202221363045 U CN 202221363045U CN 217785955 U CN217785955 U CN 217785955U
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Abstract
The utility model discloses a heat exchanger cleaning device easy to maintain, which comprises a water tank, wherein the top of the water tank is provided with a feed inlet, the top of the water tank is provided with a first pipeline, the first pipeline is connected with a second pipeline through a first valve, the bottom of the water tank is provided with a third pipeline and a fourth pipeline, the third pipeline is provided with a second valve, the fourth pipeline is provided with a water pump and a pH meter, and the fourth pipeline is connected with a fifth pipeline through a third valve; the pipeline system also comprises a sixth pipeline, a seventh pipeline, an eighth pipeline and a ninth pipeline, wherein the sixth pipeline is connected with the tenth pipeline through a fourth valve, the seventh pipeline is connected with the eleventh pipeline through a fifth valve, the eighth pipeline is connected with the twelfth pipeline through a sixth valve, and the ninth pipeline is connected with the thirteenth pipeline through a seventh valve; the second pipeline is connected with the side wall of the sixth pipeline, and the fifth pipeline is connected with the side wall of the ninth pipeline. The utility model has the advantages of can make the heat exchanger maintain labour saving and time saving.
Description
Technical Field
The utility model belongs to water treatment heat exchanger washs the field, especially relates to an easy to maintain's water treatment heat exchanger belt cleaning device.
Background
The traditional water utilities generally only supply water, but with the outstanding environmental problems, the existing water utilities also have many projects for treating sewage, and many sewages reduce organic matters contained in the sewage in a biochemical reaction mode, and generate heat during the biochemical reaction, so that the temperature of the biochemical water is ultrahigh, the activity of bacteria is reduced, the biochemical reaction speed is reduced, and the temperature of the biochemical water needs to be reduced by a heat exchanger.
The structure of the existing heat exchanger comprises a sealed shell, wherein a plurality of heat exchange plates are arranged in the shell, sealing gaskets are arranged on the heat exchange plates, a cooling water channel and a biochemical water channel are arranged in the shell, the cooling water channel and the biochemical water channel are formed on two sides of the heat exchange plates respectively, a cooling water inlet pipe, a cooling water outlet pipe, a biochemical water inlet pipe and a biochemical water outlet pipe are arranged on the outer side of the shell, the cooling water inlet pipe and the cooling water outlet pipe are connected with two ends of the cooling water channel respectively, and the biochemical water inlet pipe and the biochemical water outlet pipe are connected with two ends of the biochemical water channel respectively. According to the working principle of the heat exchanger, sewage is subjected to biochemical reaction in the treatment tank to become biochemical water, the temperature of the biochemical water rises along with the biochemical reaction, and the biochemical water in the treatment tank returns to the treatment tank through a biochemical water inlet pipe and a biochemical water channel biochemical water outlet pipe in sequence under the action of a water pump and is continuously circulated; the cooling water passes through the cooling water inlet pipe, the cooling water channel and the cooling water outlet pipe in sequence through the water pump, biochemical water and the cooling water finish heat exchange on the two sides of the heat exchange plate, the temperature of the biochemical water after returning to the treatment tank is reduced, and the biochemical reaction caused by overhigh temperature in the treatment tank is prevented from stopping.
When the heat exchanger scales, the heat exchange efficiency of the heat exchanger is low, the temperature caused by sewage biochemical reaction is difficult to drop, the biochemical reaction speed is reduced, the sewage treatment speed is reduced, the working time of the heat exchanger can be prolonged, and the energy consumption is increased, so that the heat exchanger needs to be maintained regularly to clean the scales. Fouling of the heat exchanger occurs mainly on the heat exchanger fins.
The existing maintenance method is to disassemble the heat exchanger, remove the heat exchange fins one by one to clean the scale deposit, and is time-consuming and labor-consuming, when the heat exchange fins are assembled back, the phenomenon that the sealing gasket is not installed in place or the heat exchange fins are installed in the wrong direction can occur, so that the heat exchanger leaks water and needs to be installed again, and the maintenance of the heat exchanger is time-consuming and labor-consuming. Taking a heat exchanger installed in a project for treating leachate at 200 tons per day as an example, more than three persons are needed at least for disassembling and cleaning heat exchange plates once, and the heat exchange plates are seriously scaled and need to be found for pickling and soaking, so that the time consumption is longer.
Therefore, it is desirable to provide a cleaning device for a heat exchanger, which is time-saving and labor-saving in maintenance of the heat exchanger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easy to maintain's heat exchanger belt cleaning device.
The utility model has the advantages of can make the heat exchanger maintain labour saving and time saving.
The technical scheme of the utility model: the heat exchanger cleaning device easy to maintain comprises a water tank, wherein a feed port is formed in the top of the water tank, a first pipeline is arranged on the top of the water tank and connected with a second pipeline through a first valve, a third pipeline and a fourth pipeline are arranged at the bottom of the water tank, a second valve is arranged on the third pipeline, a water pump and a pH meter are arranged on the fourth pipeline, and the fourth pipeline is connected with a fifth pipeline through a third valve; the pipeline system also comprises a sixth pipeline, a seventh pipeline, an eighth pipeline and a ninth pipeline, wherein the sixth pipeline is connected with the tenth pipeline through a fourth valve, the seventh pipeline is connected with the eleventh pipeline through a fifth valve, the eighth pipeline is connected with the twelfth pipeline through a sixth valve, and the ninth pipeline is connected with the thirteenth pipeline through a seventh valve; the second pipeline is connected with the side wall of the sixth pipeline, and the fifth pipeline is connected with the side wall of the ninth pipeline.
In the easy-to-maintain heat exchanger cleaning device, a tank cover is arranged at the top of the water tank, a feeding port is formed in the tank cover, the first pipeline and the fourth pipeline are hoses, and one end of the first pipeline penetrates through the tank cover and extends into the water tank.
In the foregoing heat exchanger cleaning apparatus easy to maintain, a mesh bag is disposed at an end of the first pipeline located at the water tank.
The heat exchanger cleaning device easy to maintain further comprises a fourteenth pipeline, the fourteenth pipeline is connected with the fifteenth pipeline through an eighth valve, and the fifteenth pipeline is connected with the side wall of the ninth pipeline.
In the heat exchanger cleaning device easy to maintain, the fourth pipeline is provided with a water pressure gauge.
In the foregoing easy-to-maintain heat exchanger cleaning apparatus, the inner diameter of the fourth pipe is smaller than the inner diameter of the first pipe.
The heat exchanger cleaning device easy to maintain further comprises a ninth valve and a tenth valve, wherein the ninth valve is connected with the side wall of the seventh pipeline, and the tenth valve is connected with the side wall of the eighth pipeline.
Compared with the prior art, the utility model discloses a water tank is used for holding the acidizing fluid, makes the acidizing fluid pass from the cooling water passageway and the biochemical water passageway of heat exchanger through the water pump, can make the scale deposit sanitization of heat exchanger fin both sides on the basis of not disassembling the heat exchanger promptly, has saved the time of dismouting heat exchanger, makes the maintenance labour saving and time saving of heat exchanger. By monitoring the change of the acid liquor concentration through the pH meter, workers can clearly know when scales are cleaned, and on the basis of ensuring that the scales are cleaned, useless pickling time is avoided, and the purpose of saving time in maintenance is further achieved. Blocky scales discharged from the heat exchanger are filtered through the mesh bag, the phenomenon that the blocky scales enter the heat exchanger again to cause pipeline blockage is avoided, acid liquor can pass through the heat exchanger in a large flow, and the acid washing time is further shortened. Therefore, the utility model has the advantages of can make the heat exchanger maintain labour saving and time saving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the water tank.
The symbols in the drawings are: 1-a water tank, 2-a feed port, 3-a first pipeline, 4-a first valve, 5-a second pipeline, 6-a third pipeline, 7-a fourth pipeline, 8-a second valve, 9-a water pump, 10-a pH meter, 11-a third valve, 12-a fifth pipeline, 13-a sixth pipeline, 14-a seventh pipeline, 15-an eighth pipeline, 16-a ninth pipeline, 17-a fourth valve, 18-a tenth pipeline, 19-a fifth valve, 20-an eleventh pipeline, 21-a sixth valve, 22-a twelfth pipeline, 23-a seventh valve, 24-a thirteenth pipeline, 25-a box cover, 26-a mesh bag, 27-a fourteenth pipeline, 28-an eighth valve, 29-a fifteenth pipeline, 30-a water pressure gauge, 31-a cooling water inlet pipe, 32-a cooling water outlet pipe, 33-a biochemical water inlet pipe, 34-a biochemical water outlet pipe, 35-a heat exchanger, 36-a ninth valve, 37-a tenth valve.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A heat exchanger cleaning device easy to maintain, as shown in fig. 1, includes a water tank 1, a feed inlet 2 is arranged at the top of the water tank 1, a first pipeline 3 is arranged at the top of the water tank 1, the first pipeline 3 is connected with a second pipeline 5 through a first valve 4, a third pipeline 6 and a fourth pipeline 7 are arranged at the bottom of the water tank 1, a second valve 8 is arranged on the third pipeline 6, a water pump 9 and a pH meter 10 are arranged on the fourth pipeline 7, and the fourth pipeline 7 is connected with a fifth pipeline 12 through a third valve 11; the device also comprises a sixth pipeline 13, a seventh pipeline 14, an eighth pipeline 15 and a ninth pipeline 16, wherein the sixth pipeline 13 is connected with a tenth pipeline 18 through a fourth valve 17, the seventh pipeline 14 is connected with an eleventh pipeline 20 through a fifth valve 19, the eighth pipeline 15 is connected with a twelfth pipeline 22 through a sixth valve 21, and the ninth pipeline 16 is connected with a thirteenth pipeline 24 through a seventh valve 23; the second duct 5 is connected to a side wall of the sixth duct 13, and the fifth duct 12 is connected to a side wall of the ninth duct 16.
The top of the water tank 1 is provided with a tank cover 25, the tank cover 25 is provided with a feeding port 2, the first pipeline 3 and the fourth pipeline 7 are hoses, and one end of the first pipeline 3 penetrates through the tank cover 25 and extends into the water tank 1.
The end part of the first pipeline 3, which is positioned on the water tank 1, is provided with a mesh bag 26, and the opening of the mesh bag 26 is fixed on the first pipeline 3 through a hoop.
And the device also comprises a fourteenth pipeline 27, wherein the fourteenth pipeline 27 is connected with a fifteenth pipeline 29 through an eighth valve 28, and the fifteenth pipeline 29 is connected with the side wall of the ninth pipeline 16.
And a water pressure gauge 30 is arranged on the fourth pipeline 7.
The fourth conduit 7 has an inner diameter smaller than the inner diameter of the first conduit 3.
And the device also comprises a ninth valve 36 and a tenth valve 37, wherein the ninth valve 36 is connected with the side wall of the seventh pipeline 14, and the tenth valve 37 is connected with the side wall of the eighth pipeline 15.
The utility model discloses installation on the heat exchanger: as shown in fig. 1, the biochemical water outlet pipe 34 of the existing heat exchanger 35 is higher than the biochemical water inlet pipe 33, and the cooling water outlet pipe 32 is higher than the cooling water inlet pipe 31. Connecting a sixth pipeline 13 and a tenth pipeline 18 in series between the biochemical water outlet pipe 34 and the biochemical water channel of the heat exchanger 35, wherein the tenth pipeline 18 is connected with the biochemical water outlet pipe 34, and the sixth pipeline 13 is connected with the biochemical water channel of the heat exchanger 35; connecting a seventh pipeline 14 and an eleventh pipeline 20 in series between the cooling water outlet pipe 32 and the cooling water channel of the heat exchanger 35, wherein the eleventh pipeline 20 is connected with the cooling water outlet pipe 32, and the seventh pipeline 14 is connected with the cooling water channel of the heat exchanger 35; connecting an eighth pipeline 15 and a twelfth pipeline 22 in series between a biochemical water inlet pipe 33 and a biochemical water channel of the heat exchanger, wherein the twelfth pipeline 22 is connected with the biochemical water inlet pipe 33, and the eighth pipeline 15 is connected with the biochemical water channel of the heat exchanger; a ninth pipeline 16 and a thirteenth pipeline 24 are connected in series between the cooling water inlet pipe 31 and the cooling water channel of the heat exchanger, wherein the thirteenth pipeline 24 is connected with the cooling water inlet pipe 31, and the ninth pipeline 16 is connected with the cooling water channel of the heat exchanger.
The utility model discloses an use: when the scale is not required to be cleaned, the fourth valve 17, the fifth valve 19, the sixth valve 21 and the seventh valve 23 are all in an open state, and the rest valves are all in a closed state. Biochemical water in the treatment tank enters a biochemical water channel of a heat exchanger 35 through a biochemical water inlet pipe 33, a twelfth pipeline 22, a sixth valve 21 and an eighth pipeline 15 in sequence, exchanges heat with cooling water, and then returns to the treatment tank from a sixth pipeline 13, a fourth valve 17, a tenth pipeline 18 and a biochemical water outlet pipe 34; the cooling water enters the cooling water channel of the heat exchanger 35 from the cooling water inlet pipe 31, the thirteenth pipeline 24, the seventh valve 23 and the ninth pipeline 16, exchanges heat with the biochemical water, and is discharged from the seventh pipeline 14, the fifth valve 19, the eleventh pipeline 20 and the cooling water outlet pipe 32.
Tap water is added into the water tank 1, and the adding amount of the tap water in the water tank 1 can be known through the water pressure gauge 30, wherein the adding amount should meet the following requirements: when the water pump 9 is started, tap water is enough to circulate between the heat exchanger and the water tank and does not bring air into the water tank, on the basis, the smaller the addition amount of the tap water is, the less the tap water is, the water is saved, and a specific water pressure value can be obtained through simple experiments. Adding saline water or citric acid into tap water to form acid liquor in the water tank 1, so that the pH value of the acid liquor reaches 2-3.
Scaling and cleaning the biochemical side of the heat exchange plate of the heat exchanger: the fifth valve 19 and the seventh valve 23 are closed, the eighth valve 28 is opened, and the biochemical water on the biochemical side of the heat exchange plate, i.e. in the biochemical channel, is discharged through the ninth pipeline 16, the fifteenth pipeline 29, the eighth valve 28 and the fourteenth pipeline 27, preferably into a sludge tank. The biochemical water in the biochemical channel can be not drained, and the drainage is used for reducing stains in the biochemical channel and reducing pipeline resistance in acid washing. If the biochemical water is not discharged smoothly, the first valve 4 can be opened, after the biochemical water in the heat exchanger 35 is basically discharged, the eighth valve 28 is closed, the third valve 11 and the first valve 4 are opened, the water pump 9 is started, the water pump 9 pumps acid liquor, the acid liquor returns to the water tank 1 through the fourth pipeline 7, the fifth pipeline 12, the ninth pipeline 16, the biochemical water channel, the sixth pipeline 13 and the first pipeline 3, and is circulated continuously, the acid liquor dissolves scale in the biochemical water channel, namely dissolves scale on the biochemical side of the heat exchange plate until the numerical value of the pH meter is stable, the scale on the biochemical side of the heat exchange plate is completely dissolved, the third valve 11 and the water pump 9 are closed, the eighth valve 28 is opened, the acid liquor is discharged, and the scale cleaning on the biochemical side of the heat exchange plate is completed, and if the pH value of the acid liquor is higher than 3, hydrochloric acid or citric acid can be added into the water tank 1.
Scaling and cleaning the cooling water side of the heat exchange fins of the heat exchanger: closing the fifth valve 19 and the seventh valve 23, detaching the fourteenth pipe 27 from the eighth valve 28, and connecting to the tenth valve 37; the first pipe 3 is detached from the first valve 4 and connected to the ninth valve 36. And when the tenth valve 37 is opened, the cooling water on the cooling water side of the heat exchange plate, namely the cooling water in the cooling water channel is discharged through the eighth pipeline 15, the tenth valve 37 and the fourteenth pipeline 27. If the cooling water is relatively clean water, the cooling water in the cooling water channel is not significant in actual emptying, but the cooling water is preferably emptied when industrial wastewater is adopted, and the emptying is to reduce stains in the cooling water channel and reduce the pipeline resistance in pickling. If the cooling water is not smoothly discharged, the ninth valve 36 may be opened. After the cooling water in the heat exchanger 35 is basically discharged, the fourteenth pipeline 27 is detached from the tenth valve 37, the fourth pipeline 7 is detached from the third valve 11 and connected to the tenth valve 37, after the ninth valve 36 and the tenth valve 37 are both in an open state, the water pump 9 is started, the water pump 9 pumps acid liquid, the acid liquid returns to the water tank 1 through the fourth pipeline 7, the eighth pipeline 15, the cooling water channel, the seventh pipeline 14 and the first pipeline 3, and circulates continuously, the acid liquid dissolves the scale in the cooling water channel, namely dissolves the scale on the cooling water side of the heat exchange plate until the value of the pH meter is stable, the scale on the biochemical side of the heat exchange plate is completely dissolved, the water pump 9 is closed, the second valve 8 is opened, and the acid liquid in the water tank 1 and the acid liquid in the cooling water channel are discharged from the third pipeline 6, so that the scale cleaning on the cooling water side of the heat exchange plate is completed.
Claims (7)
1. Easy to maintain's heat exchanger belt cleaning device, its characterized in that: the water tank comprises a water tank (1), wherein a feed inlet (2) is formed in the top of the water tank (1), a first pipeline (3) is arranged on the top of the water tank (1), the first pipeline (3) is connected with a second pipeline (5) through a first valve (4), a third pipeline (6) and a fourth pipeline (7) are arranged at the bottom of the water tank (1), a second valve (8) is arranged on the third pipeline (6), a water pump (9) and a pH meter (10) are arranged on the fourth pipeline (7), and the fourth pipeline (7) is connected with a fifth pipeline (12) through a third valve (11); the pipeline device is characterized by further comprising a sixth pipeline (13), a seventh pipeline (14), an eighth pipeline (15) and a ninth pipeline (16), wherein the sixth pipeline (13) is connected with a tenth pipeline (18) through a fourth valve (17), the seventh pipeline (14) is connected with an eleventh pipeline (20) through a fifth valve (19), the eighth pipeline (15) is connected with a twelfth pipeline (22) through a sixth valve (21), and the ninth pipeline (16) is connected with a thirteenth pipeline (24) through a seventh valve (23); the second pipeline (5) is connected with the side wall of the sixth pipeline (13), and the fifth pipeline (12) is connected with the side wall of the ninth pipeline (16).
2. The easy-to-maintain heat exchanger cleaning apparatus of claim 1, wherein: the water tank is characterized in that a tank cover (25) is arranged at the top of the water tank (1), a feeding port (2) is formed in the tank cover (25), the first pipeline (3) and the fourth pipeline (7) are hoses, and one end of the first pipeline (3) penetrates through the tank cover (25) and stretches into the water tank (1).
3. The easy-to-maintain heat exchanger washing apparatus of claim 2, wherein: the end part of the first pipeline (3) positioned at the water tank (1) is provided with a mesh bag (26).
4. The easy-to-maintain heat exchanger washing apparatus of claim 1, wherein: the pipeline device further comprises a fourteenth pipeline (27), the fourteenth pipeline (27) is connected with a fifteenth pipeline (29) through an eighth valve (28), and the fifteenth pipeline (29) is connected with the side wall of the ninth pipeline (16).
5. The easy-to-maintain heat exchanger washing apparatus of claim 1, wherein: and a water pressure gauge (30) is arranged on the fourth pipeline (7).
6. The easy-to-maintain heat exchanger washing apparatus of claim 1, wherein: the inner diameter of the fourth pipeline (7) is smaller than that of the first pipeline (3).
7. The easy-to-maintain heat exchanger cleaning apparatus of claim 1, wherein: the device also comprises a ninth valve (36) and a tenth valve (37), wherein the ninth valve (36) is connected with the side wall of the seventh pipeline (14), and the tenth valve (37) is connected with the side wall of the eighth pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221363045.1U CN217785955U (en) | 2022-05-31 | 2022-05-31 | Heat exchanger belt cleaning device of easy to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221363045.1U CN217785955U (en) | 2022-05-31 | 2022-05-31 | Heat exchanger belt cleaning device of easy to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217785955U true CN217785955U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221363045.1U Active CN217785955U (en) | 2022-05-31 | 2022-05-31 | Heat exchanger belt cleaning device of easy to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217785955U (en) |
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2022
- 2022-05-31 CN CN202221363045.1U patent/CN217785955U/en active Active
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