CN110940226A - Plate replacing and descaling device - Google Patents
Plate replacing and descaling device Download PDFInfo
- Publication number
- CN110940226A CN110940226A CN201911264921.8A CN201911264921A CN110940226A CN 110940226 A CN110940226 A CN 110940226A CN 201911264921 A CN201911264921 A CN 201911264921A CN 110940226 A CN110940226 A CN 110940226A
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- Prior art keywords
- heat exchange
- flow channel
- communicated
- pump
- exchange flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/02—Supports for cleaning appliances, e.g. frames
Abstract
The invention discloses a plate replacing and descaling device, and relates to the field of descaling devices. In addition, because the heat exchange fins do not need to be disassembled and assembled, the situation that the plate heat exchanger leaks water and is mixed with water due to the disassembly and assembly of the heat exchange fins is effectively avoided.
Description
Technical Field
The invention relates to the field of descaling devices, in particular to a plate replacing descaling device.
Background
The cathode sputtering can produce a large amount of heat in the LOW-E (LOW radiation) coating process, cooling water is needed to be adopted for cooling, the requirement on water quality is high, external water cannot be used for cooling, a plate heat exchanger must be used for cooling cathode cooling water under the condition that internal water and external water are not in contact, the plate heat exchanger is widely applied to the LOW-E (LOW radiation) coating industry, however, the combination of carbonate, calcium ions and magnesium ions in cooling water is influenced by the high temperature in the cold and heat exchange process of the plate heat exchanger, water-insoluble calcium carbonate and magnesium carbonate are formed by the carbonate, the calcium ions and the magnesium ions and are deposited on the surface of a heat exchange flow channel of the plate heat exchanger to form scale, the heat exchange effect of the plate heat exchanger is influenced by the scale, the heat exchange effect of.
In order to improve the stability of a coating process and reduce the reject ratio of products, the plate heat exchanger needs to be descaled periodically, the traditional descaling mode is that the heat exchange plates of the plate heat exchanger are manually removed one by one and then descaled one by one and then assembled one by one, time and labor are wasted, and the sealing rings matched with the heat exchange plates are easily damaged by repeated disassembly and assembly, so that water leakage and water leakage are caused.
Therefore, the descaling of the plate heat exchanger is time-consuming and labor-consuming, and the water leakage and water leakage of the plate heat exchanger caused by the descaling are problems to be solved urgently at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides the plate exchange descaling device which is time-saving and labor-saving in descaling and can effectively avoid the water leakage and water leakage of the plate heat exchanger caused by the disassembly and assembly of the heat exchange sheets.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a plate replacement descaling device, which comprises: the circulating water tank is provided with a flushing fluid outlet, a sewage outlet and a flushing fluid return port, the flushing fluid outlet is provided with a first switch valve, the sewage outlet is provided with a filtering device and a second switch valve, a first heat exchange runner water inlet of the plate heat exchanger is communicated with the flushing fluid outlet through a flushing pump, a first heat exchange runner water outlet is communicated with the flushing fluid return port, or a second heat exchange runner water inlet of the plate heat exchanger is communicated with the flushing fluid outlet through the flushing pump, and a second heat exchange runner water outlet is communicated with the flushing fluid return port; the chemical feeding assembly comprises an alkali adding barrel and an acid adding barrel, the alkali adding barrel is communicated with the circulating water tank through an alkali adding pump, and the acid adding barrel is communicated with the circulating water tank through an acid adding pump; control system, control system includes power, flushing pump switch, PH regulating switch, PH controller, PH gauge, first contactor and second contactor, the flushing pump switch is used for control the power with circuit break-make between the flushing pump, PH regulating switch is used for control the power with add the acid pump add circuit break-make between alkali pump and the PH controller, first contactor is used for control PH regulating switch with add circuit break-make between the acid pump, first contactor is used for control PH regulating switch with add circuit break-make between the alkali pump, just the PH gauge with the input of PH controller links to each other, first contactor with the second contactor all with the output of PH controller links to each other.
Preferably, a first heat exchange flow channel water inlet of the plate heat exchanger is communicated with the first main pipeline through a third switch valve, a first heat exchange flow channel water outlet is communicated with the second main pipeline through a fourth switch valve, a second heat exchange flow channel water inlet is communicated with the third main pipeline through a fifth switch valve, and a second heat exchange flow channel water outlet is communicated with the fourth main pipeline through a sixth switch valve.
Preferably, the first heat exchange flow channel water inlet, the first heat exchange flow channel water outlet, the second heat exchange flow channel water inlet and the second heat exchange flow channel water outlet are all provided with pressure gauges.
Preferably, the circulating water tank is arranged on the moving device to move.
Preferably, the moving device is a moving cart, and the braking device is a braking wheel.
Preferably, the filtering device is a filter screen.
Preferably, the first switch valve and the second switch valve are both manual switch valves.
Preferably, the flushing pump is communicated with the first heat exchange flow channel water inlet or the second heat exchange flow channel water inlet through a flushing water inlet pipe, and the flushing liquid return port is communicated with the first heat exchange flow channel water outlet or the second heat exchange flow channel water outlet through a flushing return pipe.
Compared with the prior art, the invention has the following technical effects:
1. the plate heat exchanger descaling device provided by the invention has the advantages that the water inlet of the first heat exchange flow channel of the plate heat exchanger is communicated with the flushing fluid outlet through the flushing pump, the water outlet of the first heat exchange flow channel is communicated with the flushing fluid return port, or the water inlet of the second heat exchange flow passage of the plate heat exchanger is communicated with the flushing fluid outlet through the flushing pump, the water outlet of the second heat exchange flow passage is communicated with the flushing fluid return port, when in use, the main pipeline connected with the first heat exchange flow passage and the second heat exchange flow passage of the plate heat exchanger is closed, the flushing pump drives the flushing fluid to enter and circularly flush the first heat exchange flow passage or the second heat exchange flow passage, the flushing fluid can be circulated for many times to finish the descaling of the first heat exchange flow passage and the second heat exchange flow passage, and because the heat exchange sheets do not need, the plate exchange descaling device saves time and labor for descaling, and effectively avoids the occurrence of water leakage and water leakage of the plate heat exchanger caused by the disassembly of the heat exchange sheet;
2. the flushing pump switch of the plate-changing descaling device is used for controlling the on-off of a circuit between a power supply and a flushing pump, the PH adjusting switch is used for controlling the on-off of the circuit between the power supply and an acid adding pump, an alkali adding pump and a PH controller, the first contactor is used for controlling the on-off of the circuit between the PH adjusting switch and the acid adding pump, the first contactor is used for controlling the on-off of the circuit between the PH adjusting switch and the alkali adding pump, the PH measuring meter is connected with the input end of the PH controller, the first contactor and the second contactor are both connected with the output end of the PH controller, the alkali adding barrel is communicated with a circulating water tank through the alkali adding pump, and the acid adding barrel is communicated with the circulating water tank through the acid adding pump. Open the flush pump switch in specific use, the flush pump work, first heat transfer runner or second heat transfer runner are washed in the flush fluid circulation, open PH regulating switch, the flush fluid pH valve information transfer that the PH strapping table will record to the PH controller, the PH controller is opened and close according to pH valve information control first contactor that the PH strapping table recorded and second contactor, and then control the alkali pump and open and close with the acidification pump, alkali lye is injected into the circulating water tank to the alkali pump work acidification bucket, the acidification pump work acidification bucket injects the acidizing fluid into the circulating water tank, and then the pH valve of the flush fluid in the adjustment circulating water tank, the pH valve of the flush fluid in messenger's circulating water tank remains at specific numerical value throughout. The plate-changing descaling device automatically finishes pH value adjustment and automatically controls the start and stop of the flushing pump, so that the labor is further saved, and the descaling efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a plate replacing and descaling device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a plate heat exchanger provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of a control method of the control system in the embodiment of the present invention.
Description of reference numerals: 1. a circulating water tank; 2. a flushing water inlet pipe; 3. flushing a return pipe; 4. a brake wheel; 5. a first on-off valve; 6. a filtration device; 7. a second on-off valve; 8. a first main pipeline; 9. a flush pump; 10. a second main pipeline; 11. a third main pipeline; 12. a fourth main pipeline; 13. a plate heat exchanger; 14. adding an alkali barrel; 15. adding an acid barrel; 16. a power source; 17. a flush pump switch; 18. a pH adjusting switch; 19. a pH controller; 20. a PH meter; 21. a first contactor; 22. a second contactor; 23. a master switch; 24. a third on-off valve; 25. a fourth switching valve; 26. a fifth on-off valve; 27. a sixth switching valve; 28. moving the cart; 29. a pressure gauge; 30. a seventh on-off valve; 31. an eighth on-off valve; 32. washing liquid; 33. adding an acid pump; 34. and (4) adding an alkali pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a plate exchange descaling device which saves time and labor for descaling and can effectively avoid the water leakage and water leakage of a plate heat exchanger caused by the disassembly and assembly of heat exchange sheets.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 3, the present embodiment provides a plate replacement descaling device, including: the device comprises a circulating water tank 1, wherein a flushing liquid outlet, a sewage outlet and a flushing liquid backflow port are formed in the circulating water tank 1, a first switch valve 5 is arranged at the flushing liquid outlet, a filtering device 6 and a second switch valve 7 are arranged at the sewage outlet, a first heat exchange flow passage water inlet and a flushing liquid outlet of a plate heat exchanger 13 are communicated through a flushing pump 9, a first heat exchange flow passage water outlet and the flushing liquid backflow port are communicated, or a second heat exchange flow passage water inlet and the flushing liquid outlet of the plate heat exchanger 13 are communicated through the flushing pump 9, and a second heat exchange flow passage water outlet and the flushing liquid backflow port are; the chemical feeding assembly comprises an alkali adding barrel 14 and an acid adding barrel 15, wherein the alkali adding barrel 14 is communicated with the circulating water tank 1 through an alkali adding pump 34, and the acid adding barrel 15 is communicated with the circulating water tank 1 through an acid adding pump 33; the control system comprises a power supply 16, a washing pump switch 17, a PH adjusting switch 18, a PH controller 19, a PH measuring meter 20, a first contactor 21 and a second contactor 22, the washing pump switch 17 is used for controlling the on-off of a circuit between the power supply 16 and a washing pump 9, the PH adjusting switch 18 is used for controlling the on-off of the circuit between the power supply 16 and an acid adding pump 33, an alkali adding pump 34 and the PH controller 19, the first contactor 21 is used for controlling the on-off of the circuit between the PH adjusting switch 18 and the acid adding pump 33, the first contactor 21 is used for controlling the on-off of the circuit between the PH adjusting switch 18 and the alkali adding pump 34, the PH measuring meter 20 is connected with the input end of the PH controller 19, and the first contactor 21 and the second contactor 22 are connected with the output end of the PH controller 19. Specifically, the first and second switching valves 5 and 7 are both manual valves. When the descaling device is replaced by the plate for descaling, the heat exchange sheet does not need to be disassembled and assembled, and the washing pump 9 is opened and closed and the pH value is adjusted for automatic control, so that the descaling is time-saving and labor-saving. In addition, because the heat exchange fins do not need to be disassembled and assembled, the situation that the plate heat exchanger 13 leaks water and is mixed with water due to the disassembly and assembly of the heat exchange fins is effectively avoided.
Further, to facilitate the switching off of the control system, the output of the power supply 16 is provided with a main switch 23.
In this embodiment, in order to conveniently close the main pipeline communicated with the first heat exchange flow channel and the second liquid exchange flow channel of the plate heat exchanger 13, the first heat exchange flow channel water inlet of the plate heat exchanger 13 is communicated with the first main pipeline 8 through the third switch valve 24, the first heat exchange flow channel water outlet is communicated with the second main pipeline 10 through the fourth switch valve 25, the second heat exchange flow channel water inlet is communicated with the third main pipeline 11 through the fifth switch valve 26, and the second heat exchange flow channel water outlet is communicated with the fourth main pipeline 12 through the sixth switch valve 27. Specifically, the third switching valve 24, the fourth switching valve 25, the fifth switching valve 26, and the sixth switching valve 27 are all manual valves. It should be noted that there are multiple branches in the main line, and different branches communicate with different positions of the plate heat exchanger 13, and for convenience of distinguishing the branches, the main line is named as a first main line 8, a second main line 10, a third main line 11, and a fourth main line 12.
In this embodiment, in order to observe the inside descaling condition of the plate heat exchanger 13 conveniently, the first heat exchange flow channel water inlet, the first heat exchange flow channel water outlet, the second heat exchange flow channel water inlet and the second heat exchange flow channel water outlet are all provided with the pressure gauge 29. In a specific using process, the scaling condition of the first heat exchange flow channel or the second heat exchange flow channel changes, the resistance condition of the flushing liquid 32 changes, and further the numerical value of the pressure gauge 29 changes.
In this embodiment, in order to conveniently move and fix the plate descaling device, the plate descaling device further includes a moving device and a brake device for braking the moving device, and the circulation water tank 1 is disposed on the moving device to move.
Further, the moving device is a moving cart 28, and the braking device is a braking wheel 4. So set up, the board trades scale removal device simple structure, and is with low costs.
In the present embodiment, the filtering device 6 is a filter screen. So set up, further reduced the board and traded the complexity of scale removal device, practiced thrift the cost more effectively.
In this embodiment, specifically, the flushing pump 9 is communicated with the water inlet of the first heat exchange flow channel or the water inlet of the second heat exchange flow channel through the flushing water inlet pipe 2, and the flushing water return port is communicated with the water outlet of the first heat exchange flow channel or the water outlet of the second heat exchange flow channel through the flushing return pipe 3. It should be noted that, when the first heat exchange flow channel needs to be cleaned, the flushing water inlet pipe 2 is communicated with the water inlet of the first heat exchange flow channel, and the flushing return pipe 3 is communicated with the water outlet of the first heat exchange flow channel; when the second heat exchange flow channel needs to be cleaned, the flushing water inlet pipe 2 is communicated with a water inlet of the second heat exchange flow channel, and the flushing return pipe 3 is communicated with a water outlet of the second heat exchange flow channel. The existing plate heat exchanger 13 includes a plurality of heat exchanger fins side by side, and the first heat exchange flow channel and the second heat exchange flow channel both sequentially penetrate through the plurality of heat exchanger fins. During heat exchange, one of the first heat exchange flow channel and the second heat exchange flow channel is filled with the solution to be heated, the other one of the first heat exchange flow channel and the second heat exchange flow channel is filled with a heat exchange medium, and the solution to be heated is subjected to heat exchange through the heat exchange medium and the solution to be heated so as to reach a specific temperature.
Further, a first branch pipeline is communicated with the first main pipeline 8 between the third switch valve 24 and the water inlet of the first heat exchange flow channel, and the first branch pipeline is communicated with the flushing water inlet pipe 2 through a seventh switch valve 30; a second branch pipeline is communicated with the second main pipeline 10 between the fourth switch valve 25 and the water outlet of the first heat exchange flow channel, and is communicated with the flushing return pipe 3 through an eighth switch valve 31; a third branch pipeline is communicated with the third main pipeline 11 between the fifth switch valve 26 and the water inlet of the second heat exchange flow channel and is communicated with the flushing water inlet pipe 2 through a ninth switch valve; a fourth branch pipeline is communicated with the fourth main pipeline 12 between the sixth switch valve 27 and the water outlet of the second heat exchange runner, and the fourth branch pipeline is communicated with the flushing return pipe 3 through a tenth switch valve. It should be noted that the function of the switch valve is to block or communicate the flow path, the switch valve closes the flow path and is blocked, and the switch valve opens the flow path and is communicated, and in this application, the switch valve is a two-way valve, and the pump is used to provide power for the flow of water.
Taking the first heat exchange flow channel as an example, the plate exchange descaling device has the following specific working process:
step one, after the movable trolley 28 is pushed to move the plate replacing and descaling device to a proper position, the brake wheel 4 is adopted to brake the movable trolley 28. Then, citric acid solution is injected into the circulating water tank 1 to serve as washing liquid 32, acid solution is prepared and injected into the acid adding barrel 15, alkali solution is injected into the alkali adding barrel 14, and the acid solution and the alkali solution are used for adjusting the pH value of the washing liquid;
step two, closing the third switch valve 24, the fourth switch valve 25, the fifth switch valve 26 and the sixth switch valve 27, communicating the flushing water inlet pipe 2 with the water inlet of the first heat exchange flow channel, and communicating the flushing liquid return port with the water outlet of the first heat exchange flow channel through the flushing return pipe 3;
step three, opening the first switch valve 5, the seventh switch valve 30 and the eighth switch valve 31, closing the ninth switch valve and the tenth switch valve, opening the flushing pump switch 17, circulating the flushing liquid 32, and effectively preventing the scale slag from entering the plate heat exchanger 13 again by the filter screen in the circulating process;
setting a numerical value of a PH controller 19, generally setting the acid washing to be about 3, turning on a PH adjusting switch 18, comparing the reading of the received PH measuring meter 20 with the set numerical value by the PH controller 19, and further selectively controlling the first contactor 21 or the second contactor 22 to be opened and closed, when the measurement reading of the PH measuring meter 20 is less than 3, controlling the second contactor 22 to be closed to control the alkali adding pump 34 to be opened when 2C6H8O7+3CaCO3 ═ (C6H5O7)2Ca3+3CO2 ═ 3H2OPH, and controlling the first contactor 21 to be closed to control the acid adding pump 33 to be opened by the PH controller 19 when the measurement reading of the PH measuring meter 20 is more than 3, and circulating the washing liquid 32 for 3 to 4 hours;
step five, after the circulation is finished, closing the PH adjusting switch 18, closing the flushing pump switch 17, opening the second switch valve 7 and opening the sewage outlet;
step six, adding clean water into the circulating water tank 1 after the sewage is discharged, opening the washing pump switch 17 and the PH adjusting switch 18 again for circulation, resetting the value of the PH controller 19, generally setting the alkali washing to be about 7, and neutralizing the residual acid in the plate heat exchanger 13;
and step seven, after the final circulation is finished, closing the PH adjusting switch 18 again, closing the flushing pump switch 17, opening the second switch valve 7, adding clear water into the circulating water tank 1, and opening the flushing pump switch 17 for circulation until the water is free of slag and the PH is about 7.
The principle of flushing the second heat exchange flow channel is the same as that of the first heat exchange flow channel, and the difference lies in that in the second step, the flushing water inlet pipe 2 is communicated with the water inlet of the second heat exchange flow channel, the flushing water return port is communicated with the water outlet of the second heat exchange flow channel through the flushing return pipe 3, the ninth switch valve and the tenth switch valve in the third step are opened, and the seventh switch valve 30 and the eighth switch valve 31 are closed.
The plate-exchange descaling device can solve the problems that the plate-type heat exchanger 13 is not centralized in position, can be moved and cleaned in a plurality of production lines, and can be easily recovered to the initial state of the plate-type heat exchanger 13 by using alkaline washing after acid washing to remove residual acid in the plate-type heat exchanger 13, and can be used for washing the falling scale of the reaction for a plurality of times in a circulating manner to wash and discharge the falling scale.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A plate change descaling device, comprising:
the circulating water tank is provided with a flushing fluid outlet, a sewage outlet and a flushing fluid return port, the flushing fluid outlet is provided with a first switch valve, the sewage outlet is provided with a filtering device and a second switch valve, a first heat exchange runner water inlet of the plate heat exchanger is communicated with the flushing fluid outlet through a flushing pump, a first heat exchange runner water outlet is communicated with the flushing fluid return port, or a second heat exchange runner water inlet of the plate heat exchanger is communicated with the flushing fluid outlet through the flushing pump, and a second heat exchange runner water outlet is communicated with the flushing fluid return port;
the chemical feeding assembly comprises an alkali adding barrel and an acid adding barrel, the alkali adding barrel is communicated with the circulating water tank through an alkali adding pump, and the acid adding barrel is communicated with the circulating water tank through an acid adding pump;
control system, control system includes power, flushing pump switch, PH regulating switch, PH controller, PH gauge, first contactor and second contactor, the flushing pump switch is used for control the power with circuit break-make between the flushing pump, PH regulating switch is used for control the power with add the acid pump add circuit break-make between alkali pump and the PH controller, first contactor is used for control PH regulating switch with add circuit break-make between the acid pump, first contactor is used for control PH regulating switch with add circuit break-make between the alkali pump, just the PH gauge with the input of PH controller links to each other, first contactor with the second contactor all with the output of PH controller links to each other.
2. The plate heat exchanger descaling device of claim 1, wherein a first heat exchange flow channel water inlet of the plate heat exchanger is communicated with a first main pipeline through a third switch valve, a first heat exchange flow channel water outlet is communicated with a second main pipeline through a fourth switch valve, a second heat exchange flow channel water inlet is communicated with a third main pipeline through a fifth switch valve, and a second heat exchange flow channel water outlet is communicated with a fourth main pipeline through a sixth switch valve.
3. The plate exchange descaling device according to claim 1, wherein the first heat exchange flow channel water inlet, the first heat exchange flow channel water outlet, the second heat exchange flow channel water inlet and the second heat exchange flow channel water outlet are provided with pressure gauges.
4. The plate changing descaling device according to claim 1, further comprising a moving device and a brake device for braking the moving device, wherein the circulating water tank is provided on the moving device to move.
5. The plate replacing descaling device according to claim 4, wherein the moving device is a moving cart, and the braking device is a braking wheel.
6. The plate exchange descaler of claim 1, wherein the filter device is a filter screen.
7. The plate change de-scaling device of claim 1, wherein the first and second on-off valves are both manual on-off valves.
8. The plate exchange descaling device according to claim 1, wherein the washing pump is communicated with the first heat exchange flow channel water inlet or the second heat exchange flow channel water inlet through a washing water inlet pipe, and the washing liquid return port is communicated with the first heat exchange flow channel water outlet or the second heat exchange flow channel water outlet through a washing return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264921.8A CN110940226A (en) | 2019-12-11 | 2019-12-11 | Plate replacing and descaling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264921.8A CN110940226A (en) | 2019-12-11 | 2019-12-11 | Plate replacing and descaling device |
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| CN110940226A true CN110940226A (en) | 2020-03-31 |
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| CN201911264921.8A Pending CN110940226A (en) | 2019-12-11 | 2019-12-11 | Plate replacing and descaling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473683A (en) * | 2020-04-22 | 2020-07-31 | 中国万宝工程有限公司 | Water radiator washs scale removal equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111473683A (en) * | 2020-04-22 | 2020-07-31 | 中国万宝工程有限公司 | Water radiator washs scale removal equipment |
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