CN212512684U - Full-automatic on-line cleaning device for plate heat exchanger for heat supply network system - Google Patents
Full-automatic on-line cleaning device for plate heat exchanger for heat supply network system Download PDFInfo
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- CN212512684U CN212512684U CN202021212230.1U CN202021212230U CN212512684U CN 212512684 U CN212512684 U CN 212512684U CN 202021212230 U CN202021212230 U CN 202021212230U CN 212512684 U CN212512684 U CN 212512684U
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Abstract
The utility model discloses a full-automatic online belt cleaning device of plate heat exchanger for heat supply network system, including the control unit, circulating pump, cleaner solution tank and clean water tank, still including setting up electric valve, temperature sensor, online acidimeter and the electric conductivity table on the pipeline. The device can automatically start the cleaning process according to the temperature difference, realize the circular cleaning and the clean water washing of the cleaning agent by controlling the opening and closing of the device, and simultaneously determine the end time of the circular cleaning and the end time of the clean water washing of the cleaning agent according to the acidity and the conductivity of the drained water, thereby realizing the full-automatic online cleaning of the plate heat exchanger. The utility model discloses wash soon, degree of automation is high, and needn't disintegrate the heat exchanger, has prolonged life, has solved the heat exchange efficiency decline problem that the operation of plate heat exchanger for the heat supply network system in-process leads to because of the scale deposit, has ensured district resident's heating effect.
Description
Technical Field
The utility model relates to a belt cleaning device for rinsing heat supply network medium plate heat exchanger.
Background
The plate heat exchanger is a high-efficiency heat exchanger formed by stacking corrugated stainless steel or titanium alloy plates, thin rectangular channels are formed among various plates, and heat exchange is carried out through the plates. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenience in installation and cleaning, wide application, long service life and the like.
At present, the method for cleaning the plate heat exchanger is generally a shutdown disassembly cleaning. After the hold-down bolt columns for plate type heat exchange need to be removed, the plate bundles are loosened, the plate sheets are removed, and then the plate sheets are cleaned. The sealing gasket and the plate sheet of the plate heat exchanger are easily damaged in the disassembly process, the disassembly and installation workload is large, and the time consumption is long.
SUMMERY OF THE UTILITY MODEL
The utility model provides a full-automatic on-line cleaning device of plate heat exchanger for heat supply network system, its purpose: the online cleaning of the heat exchanger is realized, the disassembly and assembly work is avoided, the cleaning efficiency is improved, the workload is reduced, and the service life of the heat exchanger is prolonged.
The utility model discloses technical scheme as follows:
a full-automatic online cleaning device for a plate-type heat exchanger for a heat supply network system is characterized in that a primary side water inlet end of the heat exchanger is connected with a primary water inlet connector of the heat supply network system through a primary water inlet pipeline, a primary side water outlet end of the heat exchanger is connected with a primary water outlet connector of the heat supply network system through a primary water outlet pipeline, a secondary side water inlet end of the heat exchanger is connected with a secondary water inlet connector of the heat supply network system through a secondary water inlet pipeline, a secondary side water outlet end of the heat exchanger is connected with a secondary water outlet connector of the heat supply network system through a secondary water outlet pipeline, a first electric valve is installed on the primary water inlet pipeline, a second electric valve is installed on the primary water outlet pipeline, a third electric valve is installed on the secondary water inlet pipeline, a fourth electric valve is installed on the secondary water outlet pipeline, and comprises a control unit, The cleaning agent solution tank and the clear water tank also comprise a circulating pump, a fifth electric valve, a sixth electric valve, a seventh electric valve, an eighth electric valve, a ninth electric valve, a tenth electric valve, an eleventh electric valve and a twelfth electric valve which are respectively connected with the control unit;
the control unit is also connected with the first electric valve, the second electric valve, the third electric valve and the fourth electric valve respectively;
the water outlet of the cleaning agent solution tank is communicated with the inlet of the circulating pump through a fifth electric valve, and the outlet of the clear water tank is communicated with the inlet of the circulating pump through a sixth electric valve;
the secondary side water outlet end of the heat exchanger is communicated with a water return port of the cleaning agent solution tank through an eighth electric valve, the secondary side water outlet end of the heat exchanger is also communicated with an outlet of the circulating pump through a ninth electric valve, and the secondary side water outlet end of the heat exchanger is connected with the primary side water inlet end of the heat exchanger through an eleventh electric valve;
the secondary side water inlet end of the heat exchanger is communicated with an outlet of the circulating pump through a seventh electric valve, and the primary side water outlet end of the heat exchanger is connected with the secondary side water inlet end of the heat exchanger through a twelfth electric valve; and the secondary side water inlet end of the heat exchanger is also connected with a water drainage pipeline through a tenth electric valve.
As a further improvement of the device: the secondary water outlet pipeline is connected with the control unit through a pipeline, and the secondary water outlet pipeline is connected with the control unit through a pipeline.
As a further improvement of the device: and an online acidity meter is further arranged on the cleaning agent solution tank and is connected with the control unit.
As a further improvement of the device: and the drainage pipeline is also provided with a conductivity meter, and the conductivity meter is connected with the control unit.
As a further improvement of the device: the control unit is a PLC device.
Compared with the prior art, the utility model discloses following beneficial effect has: (1) the utility model discloses a control unit controls each electric valve action, can realize the automatic cycle of cleaner washs and the automatic washing of clear water, need not to disintegrate plate heat exchanger, prolongs its life, and degree of automation is high, and the washing speed is fast, and work load is little, convenient operation, and cleaning performance is good, has solved the heat exchange efficiency decline problem that the scale deposit leads to in the operation process of plate heat exchanger for the heat supply network system, has ensured the heating effect of residential area; (2) the temperature sensor is used for detecting the temperature difference of the secondary water inlet and the secondary water outlet, when the control unit finds that the temperature difference is small, the heat exchange effect is poor, and the cleaning program can be automatically started; (3) the acidity of the cleaning agent solution tank can be detected by an online acidity meter, and the cleaning end time of the cleaning agent is controlled; (4) the conductivity of the flushing drainage can be detected through the conductivity meter, and the end time of water flushing is controlled.
Drawings
FIG. 1 is a schematic view of the first stage cleaning using the apparatus.
FIG. 2 is a schematic view of the second stage of flushing using the apparatus.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
referring to fig. 1 and 2, in a full-automatic online cleaning device for a plate heat exchanger of a heat supply network system, a primary side water inlet end and a secondary water outlet end of a heat exchanger 1 are on the same side, and a secondary side water inlet end and a primary water outlet end are on the same side.
The primary side water inlet end of the heat exchanger 1 is connected with a primary water inlet connector of a heat supply network system through a primary water inlet pipeline 1-1, the primary side water outlet end of the heat exchanger 1 is connected with a primary water outlet connector of the heat supply network system through a primary water outlet pipeline 1-2, the secondary side water inlet end of the heat exchanger 1 is connected with a secondary water inlet connector of the heat supply network system through a secondary water inlet pipeline 1-3, and the secondary side water outlet end of the heat exchanger 1 is connected with a secondary water outlet connector of the heat supply network system through a secondary water outlet pipeline 1-4. The primary water inlet pipeline 1-1 is provided with a first electric valve 2, the primary water outlet pipeline 1-2 is provided with a second electric valve 3, the secondary water inlet pipeline 1-3 is provided with a third electric valve 4, and the secondary water outlet pipeline 1-4 is provided with a fourth electric valve 5.
The full-automatic online cleaning device comprises a control unit, a cleaning agent solution tank 8, a clean water tank 11, a circulating pump 13, a fifth electric valve 10, a sixth electric valve 12, a seventh electric valve 14, an eighth electric valve 15, a ninth electric valve 16, a tenth electric valve 17, an eleventh electric valve 20 and a twelfth electric valve 21, wherein the circulating pump, the fifth electric valve, the sixth electric valve 12, the seventh electric valve 14, the eighth electric valve 15, the ninth electric valve 16, the tenth electric valve 17, the eleventh electric valve 20 and the twelfth electric valve 21.
The control unit is also connected with a first electric valve 2, a second electric valve 3, a third electric valve 4 and a fourth electric valve 5 respectively.
The water outlet of the cleaning agent solution tank 8 is communicated with the inlet of the circulating pump 13 through a fifth electric valve 10, and the outlet of the clear water tank 11 is communicated with the inlet of the circulating pump 13 through a sixth electric valve 12.
The secondary side water outlet end of the heat exchanger 1 is communicated with a water return port of the cleaning agent solution tank 8 through an eighth electric valve 15, the secondary side water outlet end of the heat exchanger 1 is also communicated with an outlet of the circulating pump 13 through a ninth electric valve 16, and the secondary side water outlet end of the heat exchanger 1 is connected with the primary side water inlet end of the heat exchanger 1 through an eleventh electric valve 20.
The secondary side water inlet end of the heat exchanger 1 is communicated with an outlet of a circulating pump 13 through a seventh electric valve 14, and the primary side water outlet end of the heat exchanger 1 is connected with the secondary side water inlet end of the heat exchanger 1 through a twelfth electric valve 21; and the secondary side water inlet end of the heat exchanger 1 is also connected with a water drainage pipeline through a tenth electric valve 17.
Further, the device also comprises a first temperature sensor 6 arranged on the secondary water inlet pipeline 1-3 and a second temperature sensor 7 arranged on the secondary water outlet pipeline 1-4, wherein the first temperature sensor 6 and the second temperature sensor 7 are respectively connected with the control unit. The control unit can deduce the heat exchange effect of the current heat exchanger 1 through the temperature difference detected by the temperature sensor, thereby determining whether to start the cleaning program.
And an online acidity meter 9 is further arranged on the cleaning agent solution tank 8, and the online acidity meter 9 is connected with the control unit and used for detecting the acidity of the cleaning agent. When the acidity of the cleaning agent tends to be stable, the surface scale layer of the heat exchanger 1 is completely cleaned, and acid liquor is not consumed any more.
And the drainage pipeline is also provided with a conductivity meter 18, and the conductivity meter 18 is connected with the control unit. When the conductivity of the washing water tends to be stable, it indicates that the washing liquid remaining inside the heat exchanger 1 has been washed clean.
In this embodiment, the control unit is a PLC device 19.
When the PLC device 19 finds that the temperature difference of the secondary side water inlet is smaller than the preset temperature difference threshold, the cleaning program is automatically started:
first, the first electrically operated valve 2, the second electrically operated valve 3, the third electrically operated valve 4 and the fourth electrically operated valve 5 are closed, and the heat exchanger 1 stops operating.
Then, as in FIG. 1, the scale layer is removed using a cleaning agent: the ninth electric valve 16, the sixth electric valve 12 and the tenth electric valve 17 are kept closed, the eleventh electric valve 20, the twelfth electric valve 21, the eighth electric valve 15, the fifth electric valve 10 and the seventh electric valve 14 are opened, the circulating pump 13 is started, at this time, the cleaning agent passes through the circulating pump 13, enters the heat exchange channel from the secondary side water inlet end and the primary side water outlet end of the heat exchanger 1, is output from the secondary side water outlet end and the primary side water inlet end of the heat exchanger 1, returns to the cleaning agent solution tank 8, and is cleaned in a circulating mode.
When the acidity of the cleaning agent is detected to tend to be stable, the scale layer is completely cleaned, and the acid liquor is not consumed any more. At this time, as shown in fig. 2, cleaning with the cleaning agent is finished, and rinsing with clean water is started: the ninth electric valve 16, the sixth electric valve 12 and the tenth electric valve 17 are opened, meanwhile, the eleventh electric valve 20 and the twelfth electric valve 21 are kept in an opening state, the eighth electric valve 15, the fifth electric valve 10 and the seventh electric valve 14 are closed, and the circulating pump 13 continues to work. At this time, the clean water passes through the circulating pump 13, enters the heat exchange channel from the secondary side water outlet end and the primary side water inlet end of the heat exchanger 1, is output from the secondary side water inlet end and the primary side water outlet end of the heat exchanger 1, and is finally discharged from the drainage pipeline.
When the conductivity of the washing water at the drainage pipeline tends to be stable, the fact that the washing liquid remained in the heat exchanger 1 is washed clean is indicated, the circulating pump 13 is closed, the first electric valve 2, the second electric valve 3, the third electric valve 4 and the fourth electric valve 5 are opened, and other electric valves are closed, so that the heat exchanger 1 is enabled to recover to operate.
Claims (5)
1. A full-automatic online cleaning device for a plate heat exchanger for a heat supply network system is characterized in that a primary side water inlet end of a heat exchanger (1) is connected with a primary water inlet connector of the heat supply network system through a primary water inlet pipeline (1-1), a primary side water outlet end of the heat exchanger (1) is connected with a primary water outlet connector of the heat supply network system through a primary water outlet pipeline (1-2), a secondary side water inlet end of the heat exchanger (1) is connected with a secondary water inlet connector of the heat supply network system through a secondary water inlet pipeline (1-3), a secondary side water outlet end of the heat exchanger (1) is connected with a secondary water outlet connector of the heat supply network system through a secondary water outlet pipeline (1-4), a first electric valve (2) is installed on the primary water inlet pipeline (1-1), a second electric valve (3) is installed on the primary water outlet pipeline (1-2), install third electrically operated valve (4) on secondary water inlet pipeline (1-3), install fourth electrically operated valve (5), its characterized in that on secondary water outlet pipeline (1-4): the full-automatic online cleaning device comprises a control unit, a cleaning agent solution tank (8), a clear water tank (11), a circulating pump (13), a fifth electric valve (10), a sixth electric valve (12), a seventh electric valve (14), an eighth electric valve (15), a ninth electric valve (16), a tenth electric valve (17), an eleventh electric valve (20) and a twelfth electric valve (21), wherein the circulating pump, the fifth electric valve, the sixth electric valve (12), the seventh electric valve (14), the eighth electric valve (15), the ninth electric valve (16), the tenth electric valve (17), the eleventh electric valve (20);
the control unit is also connected with a first electric valve (2), a second electric valve (3), a third electric valve (4) and a fourth electric valve (5) respectively;
the water outlet of the cleaning agent solution tank (8) is communicated with the inlet of a circulating pump (13) through a fifth electric valve (10), and the outlet of the clear water tank (11) is communicated with the inlet of the circulating pump (13) through a sixth electric valve (12);
the secondary side water outlet end of the heat exchanger (1) is communicated with a water return port of the cleaning agent solution tank (8) through an eighth electric valve (15), the secondary side water outlet end of the heat exchanger (1) is also communicated with an outlet of a circulating pump (13) through a ninth electric valve (16), and the secondary side water outlet end of the heat exchanger (1) is connected with the primary side water inlet end of the heat exchanger (1) through an eleventh electric valve (20);
the secondary side water inlet end of the heat exchanger (1) is communicated with an outlet of a circulating pump (13) through a seventh electric valve (14), and the primary side water outlet end of the heat exchanger (1) is connected with the secondary side water inlet end of the heat exchanger (1) through a twelfth electric valve (21); and the secondary side water inlet end of the heat exchanger (1) is also connected with a water drainage pipeline through a tenth electric valve (17).
2. The full-automatic on-line cleaning device for the plate heat exchanger of the heat network system as claimed in claim 1, wherein: the device is characterized by further comprising a first temperature sensor (6) arranged on the secondary water inlet pipeline (1-3) and a second temperature sensor (7) arranged on the secondary water outlet pipeline (1-4), wherein the first temperature sensor (6) and the second temperature sensor (7) are respectively connected with the control unit.
3. The full-automatic on-line cleaning device for the plate heat exchanger of the heat network system as claimed in claim 1, wherein: an online acidimeter (9) is further arranged on the cleaning agent solution tank (8), and the online acidimeter (9) is connected with the control unit.
4. The full-automatic on-line cleaning device for the plate heat exchanger of the heat network system as claimed in claim 1, wherein: and the drainage pipeline is also provided with a conductivity meter (18), and the conductivity meter (18) is connected with the control unit.
5. The full-automatic on-line cleaning device for the plate heat exchanger used in the heat supply network system according to any one of claims 1 to 4, characterized in that: the control unit is a PLC device (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212230.1U CN212512684U (en) | 2020-06-28 | 2020-06-28 | Full-automatic on-line cleaning device for plate heat exchanger for heat supply network system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212230.1U CN212512684U (en) | 2020-06-28 | 2020-06-28 | Full-automatic on-line cleaning device for plate heat exchanger for heat supply network system |
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| CN212512684U true CN212512684U (en) | 2021-02-09 |
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| CN202021212230.1U Active CN212512684U (en) | 2020-06-28 | 2020-06-28 | Full-automatic on-line cleaning device for plate heat exchanger for heat supply network system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199074A (en) * | 2021-11-12 | 2022-03-18 | 江阴金童石化装备有限公司 | Heat exchanger rust removal system and rust removal process |
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2020
- 2020-06-28 CN CN202021212230.1U patent/CN212512684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199074A (en) * | 2021-11-12 | 2022-03-18 | 江阴金童石化装备有限公司 | Heat exchanger rust removal system and rust removal process |
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