CN215810441U - Automatic heat transfer equipment of descaling - Google Patents
Automatic heat transfer equipment of descaling Download PDFInfo
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- CN215810441U CN215810441U CN202120468678.8U CN202120468678U CN215810441U CN 215810441 U CN215810441 U CN 215810441U CN 202120468678 U CN202120468678 U CN 202120468678U CN 215810441 U CN215810441 U CN 215810441U
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- descaling
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 201
- 239000007788 liquid Substances 0.000 claims abstract description 130
- 230000007306 turnover Effects 0.000 claims abstract description 42
- 239000008399 tap water Substances 0.000 claims abstract description 19
- 235000020679 tap water Nutrition 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003287 bathing Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 description 9
- 239000008236 heating water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses automatic descaling heat exchange equipment which comprises a heat exchange equipment body, a descaling turnover box, a water inlet three-way valve, a water outlet three-way valve and a circulating pump, wherein the heat exchange equipment body is provided with an inner cold water pipe and an inner hot water pipe, the descaling turnover box is provided with a liquid outlet and a liquid return port, the water inlet end of the inner cold water pipe is selectively communicated with tap water or the liquid outlet through the water inlet three-way valve, the water outlet end of the inner hot water pipe is selectively communicated with an outer hot water pipe or the liquid return port through the water outlet three-way valve, and the circulating pump is arranged on a passage between the descaling turnover box and the heat exchange equipment body. The heat exchange equipment can be flexibly switched between the bathing state and the descaling state, so that a user can conveniently and automatically clean the scale of the heat exchanger at regular intervals, no after-sales personnel is required, the maintenance cost is lower, and the service performance and the use experience of the heat exchange equipment are improved.
Description
Technical Field
The utility model relates to the technical field of water heaters and wall-mounted furnaces, in particular to a heat exchange device capable of automatically removing water scales.
Background
After the gas water heater and the gas wall-hanging stove are used for a period of time, scale can be attached to the surface of the inner wall of a pipeline of the heat exchanger to form a layer of 'film', and the 'film' of the scale can cause various problems of the water heater, such as heat transfer obstruction, ignition failure, high-temperature protection, small water flow and the like.
In the face of the scale "film", existing users pay for cleaning the scale by looking for after-sale personnel, the maintenance cost is high, and the use experience of the users is influenced. Therefore, in order to facilitate users to clean the scale inside the heat exchanger regularly, the design of the heat exchange equipment capable of automatically removing the scale is of great significance.
Disclosure of Invention
The utility model aims to solve at least one of the problems in the prior related art to a certain extent, and therefore, the utility model provides the automatic scale removal heat exchange equipment which is simple in structure, convenient for a user to clean the scale of the heat exchange equipment at regular intervals, lower in maintenance cost and improve the use experience of the user.
According to the automatic heat exchange equipment who removes incrustation scale that provides above-mentioned, it realizes through following technical scheme:
an automatic descaling heat exchange device comprises: the heat exchange equipment body is provided with an internal cold water pipe and an internal hot water pipe; the descaling turnover box is provided with a liquid outlet and a liquid return port; the water inlet end of the inner cold water pipe is selectively communicated with tap water or the liquid outlet through the water inlet three-way valve; the water outlet end of the internal hot water pipe is selectively communicated with the external hot water pipe or the liquid return port through the water outlet three-way valve; and the circulating pump is arranged on the passage between the descaling turnover box and the heat exchange equipment body.
In some embodiments, a first inlet of the water inlet three-way valve is communicated with tap water, a second inlet of the water inlet three-way valve is communicated with the liquid outlet through a first connecting pipe, a first outlet of the water outlet three-way valve is communicated with an external hot water pipe, a second outlet of the water outlet three-way valve is communicated with the liquid return port through a second connecting pipe, and the circulating pump is disposed on the first connecting pipe or the second connecting pipe.
In some embodiments, the descaling turnover box is further provided with a liquid filling port and a liquid discharging port, and a liquid discharging valve is arranged at the liquid discharging port; or, the descaling turnover box comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet, the liquid outlet and the liquid return port, a liquid outlet valve is arranged at the position of the liquid outlet, and the cover body is movably covered at the opening of the box body.
According to the automatic heat exchange equipment who removes incrustation scale that provides above-mentioned, it can also be realized through following technical scheme:
an automatic descaling heat exchange device comprises: the heat exchange equipment body is provided with an internal cold water pipe and an internal hot water pipe, and the internal hot water pipe is communicated with an external hot water pipe; the descaling turnover box is provided with a liquid outlet and a liquid return port, and the liquid return port is selectively communicated with the external hot water pipe; the water inlet end of the inner cold water pipe is selectively communicated with tap water or the liquid outlet through the water inlet three-way valve; and the circulating pump is arranged on the passage between the descaling turnover box and the heat exchange equipment body.
In some embodiments, a first inlet of the water inlet three-way valve is communicated with tap water, a second inlet of the water inlet three-way valve is communicated with the liquid outlet through a first connecting pipe, the liquid return port is communicated with the external hot water pipe through a second connecting pipe, the second connecting pipe and the external hot water pipe are respectively provided with a control valve, and the circulating pump is arranged on the first connecting pipe or the second connecting pipe.
In some embodiments, the descaling turnover box is further provided with a liquid filling port and a liquid discharging port, and a liquid discharging valve is arranged at the liquid discharging port; or, the descaling turnover box comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet, a liquid outlet and a liquid return port, a liquid outlet valve is arranged at the position of the liquid outlet, and the cover body covers the opening of the box body.
According to the automatic heat exchange equipment who removes incrustation scale that provides above-mentioned, it can also be realized through following technical scheme:
an automatic descaling heat exchange device comprises: the heat exchange equipment body is provided with an inner cold water pipe and an inner hot water pipe, and the inner cold water pipe is communicated with tap water through an outer cold water pipe; the descaling turnover box is provided with a liquid outlet and a liquid return port, and the liquid outlet is selectively communicated with the external cold water pipe; the water outlet end of the internal hot water pipe is selectively communicated with the external hot water pipe or the liquid return port through the water outlet three-way valve; and the circulating pump is arranged on the passage between the descaling turnover box and the heat exchange equipment body.
In some embodiments, a first outlet of the water outlet three-way valve is communicated with the external hot water pipe, a second outlet of the water outlet three-way valve is communicated with the liquid return port through a second connecting pipe, the liquid outlet is communicated with the external cold water pipe through a first connecting pipe, the first connecting pipe and the external cold water pipe are respectively provided with a control valve, and the circulating pump is arranged on the first connecting pipe or the second connecting pipe.
In some embodiments, the descaling turnover box is further provided with a liquid filling port and a liquid discharging port, and a liquid discharging valve is arranged at the liquid discharging port; or, the descaling turnover box comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet, a liquid outlet and a liquid return port, a liquid outlet valve is arranged at the position of the liquid outlet, and the cover body covers the opening of the box body.
In some embodiments, the heat exchange device is a gas water heater or a gas wall-hanging stove.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
according to the heat exchange equipment, the descaling turnover box is externally connected, the water inlet end of the inner cold water pipe is selectively communicated with the tap water or the liquid outlet through the water inlet three-way valve, the water outlet end of the inner hot water pipe is selectively communicated with the outer hot water pipe or the liquid return port through the water outlet three-way valve, so that the heat exchange equipment can be flexibly switched between a bathing state and a descaling state, a user can conveniently and automatically clean scale of a heat exchanger at regular intervals, no need of paying for after-sales personnel, the maintenance cost is lower, and the service performance and the use experience of the heat exchange equipment are improved.
Drawings
FIG. 1 is a schematic structural view of a heat exchange apparatus in example 1 of the present invention;
FIG. 2 is a schematic structural diagram of a heat exchange apparatus in example 2 of the present invention;
FIG. 3 is a schematic structural diagram of a heat exchange apparatus in example 3 of the present invention;
FIG. 4 is a schematic structural diagram of a heat exchange device in embodiment 4 of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the utility model or equivalent substitutions of parts of technical features without departing from the spirit of the utility model are intended to be covered by the scope of the claims of the utility model.
Example 1
As shown in fig. 1, the present embodiment provides an automatic descaling heat exchanger, which is a gas water heater. The descaling circulating box comprises a heat exchange equipment body 1 (namely a water heater body), a descaling circulating box 2, a water inlet three-way valve 3, a water outlet three-way valve 4, a circulating pump 5 and a control module (not shown in the figure), wherein the heat exchange equipment body 1 is provided with an inner cold water pipe 11, an inner hot water pipe 12 and a heat exchanger 13, the water inlet end of the heat exchanger 13 is communicated with the inner cold water pipe 11, and the water outlet end of the heat exchanger 13 is communicated with the inner hot water pipe 12. The descaling turnover box 2 at least has a liquid outlet 21 and a liquid return port 22. The first inlet 31 of the water inlet three-way valve 3 is communicated with tap water, the second inlet is communicated with the liquid outlet 21, and the main water outlet is communicated with the water inlet end of the inner cold water pipe 11, so that the inner cold water pipe 11 can be controlled to be selectively communicated with the tap water or the liquid outlet 21 of the descaling turnover box 2 through the water inlet three-way valve 3. The main water inlet of the water outlet three-way valve 4 is communicated with the water outlet end of the internal hot water pipe 12, the first outlet 41 is communicated with an external hot water pipe (not shown in the figure), and the second outlet is communicated with the liquid return port 22, so that the internal hot water pipe 12 can be controlled to be selectively communicated with the external hot water pipe or the liquid return port 22 of the descaling turnover box 2 through the water outlet three-way valve 4. The circulating pump 5 is arranged on a passage between the descaling turnover box 2 and the heat exchange equipment body 1. The control module is respectively and electrically connected with the water inlet three-way valve 3, the water outlet three-way valve 4 and the circulating pump 5. Preferably, the water inlet three-way valve 3 and the water outlet three-way valve 4 are both electric three-way valves, and the control module is at least provided with a descaling start key.
When the heat exchange equipment is in a bathing state without scale removal requirements, the water inlet three-way valve 3 is controlled to conduct the cold water pipe 11 and tap water, the water outlet three-way valve 4 is controlled to conduct the internal hot water pipe 12 and the external hot water pipe, at the moment, tap water enters the cold water pipe 11 from the water inlet three-way valve 3 and is heated by the heat exchanger 13, and hot water is supplied to a user water consumption point from the internal hot water pipe 12, the water outlet three-way valve 4 and the external hot water pipe in sequence, so that bathing water required by a user for bathing is met. When the heat exchange equipment needs descaling, the heat exchange equipment is switched to a descaling state, the water inlet three-way valve 3 is controlled to conduct the cold water pipe 11 and the liquid outlet 21 of the descaling turnover box 2, the water outlet three-way valve 4 is controlled to conduct the internal hot water pipe 12 and the liquid return opening 22 of the descaling turnover box 2, the control circulating pump 5 is started, descaling liquid in the descaling turnover box 2 enters the heat exchanger 13 from the water inlet three-way valve 3 and the cold water pipe 11, the heat exchanger 13 does not work by ignition at the moment, and then flows back to the descaling turnover box 2 from the internal hot water pipe 12, the water outlet three-way valve 4 and the liquid return opening 22 for recycling.
It can be seen that, the heat exchange device of this embodiment, through external scale removal turnover case 2, and with the end of intaking of interior cold water pipe 11 through water inlet three-way valve 3 selective intercommunication running water or liquid outlet 21, the end of going out of interior hot water pipe 12 through going out water three-way valve 4 selective intercommunication outside hot water pipe or liquid return 22, make heat exchange device can switch over between bathing state and scale removal state in a flexible way, the user oneself of being convenient for regularly clears up the incrustation scale of heat exchanger 13 automatically, need not to ask for after-sales personnel for the self-service fee, the maintenance cost is lower, improve heat exchange device's performance and user experience of using.
Further, still include first connecting pipe 61 and second connecting pipe 62, the second entry of intaking three-way valve 3 passes through first connecting pipe 61 and communicates liquid outlet 21, and the second export of play water three-way valve 4 passes through second connecting pipe 62 and communicates liquid return port 22, and circulating pump 5 sets up on first connecting pipe 61 or second connecting pipe 62. The present embodiment exemplifies that the circulation pump 5 is provided on the first connection pipe 61.
Further, the descaling turnover box 2 of this embodiment further has a liquid filling opening 23 and a liquid discharge opening 24, the liquid filling opening 23 is used for a user to inject descaling liquid into the descaling turnover box 2, a liquid discharge valve (not shown in the figure) is arranged at the liquid discharge opening 24, and the liquid discharge valve is electrically connected with the control module and used for controlling the on-off state of the liquid discharge opening 24, so that after descaling is finished, waste descaling liquid in the descaling turnover box 2 is discharged in time by opening the liquid discharge valve.
In other embodiments, the descaling turnover box 2 may be designed to include a box body and a cover body, the top of the box body is provided with an opening, the box body is provided with a liquid outlet 24, a liquid outlet 21 and a liquid return port 22, and the cover body is movably covered at the opening of the box body, so that descaling liquid can be injected into the box body by opening the cover body, and the liquid adding port 23 is not required to be additionally arranged.
Further, a circulation pump may be added to the inner cold water pipe 11 as necessary.
Example 2
As shown in fig. 2, the embodiment provides a heat exchange device for automatically removing scale, which is a wall-mounted gas boiler. The present embodiment is different from embodiment 1 in that the heat exchanger 13 has a different structure, and further includes a heating water outlet pipe 14 and a heating water return pipe 15, the heating water outlet pipe 14 is connected to the internal hot water pipe 12, the heating water return pipe 15 is connected to the internal cold water pipe 11, and the other portions are the same as those of embodiment 1.
It can be seen that, the gas wall-mounted boiler of this embodiment, it is through adding scale removal turnover case 2 to with the end of intaking of interior cold water pipe 11 through intaking water three-way valve 3 selectivity intercommunication running water or liquid outlet 21, the play water end of interior hot water pipe 12 through going out water three-way valve 4 selectivity intercommunication outside hot water pipe or returning liquid mouth 22, make the wall-mounted boiler can be in the bathing state, switch over between heating state and the scale removal state in a flexible way, the user oneself of being convenient for regularly clears up the incrustation scale of heat exchanger 13 automatically, need not the self-service and ask after-sales personnel, the maintenance cost is lower, improve indirect heating equipment's performance and user experience.
Example 3
As shown in fig. 3, the present embodiment is different from embodiment 1 in the connection manner between the liquid return port 22 and the internal hot water pipe 13. Specifically, the descaling circulation box further comprises an external hot water pipe 16 and a control valve 7 electrically connected with the control module, the internal hot water pipe 12 is connected with the universal household water point through the external hot water pipe 16, the liquid return port 22 of the descaling circulation box 2 is communicated with the external hot water pipe 16 through a second connecting pipe 62, and the control valves 7 are respectively arranged on the second connecting pipe 62 and the external hot water pipe 16, so that the internal hot water pipe 12 is selectively connected with the universal household water point or the liquid return port 22 of the descaling circulation box 2 by controlling the working states of the control valves 7 on the second connecting pipe 62 and the external hot water pipe 16, and the two control valves 7 are adopted to replace the water outlet three-way valve 4.
When the heat exchange equipment is in a bathing state without scale removal requirement, the water inlet three-way valve 3 is controlled to conduct the cold water pipe 11 and tap water, the control valve 7 on the second connecting pipe 62 is closed, and the control valve 7 on the external hot water pipe 16 is opened. When the heat exchange equipment needs descaling, the heat exchange equipment is switched to a descaling state, the water inlet three-way valve 3 is controlled to conduct the cold water pipe 11 and the first connecting pipe 61, the control valve 7 on the second connecting pipe 62 is opened, and the control valve 7 on the external hot water pipe 16 is closed.
Example 4
As shown in fig. 4, the present embodiment is different from embodiment 1 in the connection manner between the liquid outlet 21 and the inner cooling water pipe 11. Specifically, the descaling circulating box further comprises an external cold water pipe 17 and a control valve 7 electrically connected with the control module, the internal cold water pipe 11 is communicated with tap water through the external cold water pipe 17, the liquid outlet 21 of the descaling circulating box 2 is communicated with the external cold water pipe 17 through a first connecting pipe 61, the control valves 7 are respectively arranged on the external cold water pipe 17 and the first connecting pipe 61, and thus the internal cold water pipe 11 is selectively communicated with the tap water or the liquid outlet 21 of the descaling circulating box 2 by controlling the working states of the control valves 7 on the external cold water pipe 17 and the first connecting pipe 61, and the fact that the two control valves 7 are adopted to replace the water inlet three-way valve 3 is achieved.
When the heat exchange equipment is in a bathing state without scale removal requirement, the control valve 7 on the external cold water pipe 17 is opened, the control valve 7 on the external first connecting pipe 61 is closed, and the water outlet three-way valve 4 is controlled to conduct the internal hot water pipe 12 and the external hot water pipe 17. When the heat exchange equipment needs descaling, the heat exchange equipment is switched to a descaling state, the control valve 7 on the external cold water pipe 17 is closed, the control valve 7 on the external first connecting pipe 61 is opened, and the water outlet three-way valve 4 is controlled to conduct the internal hot water pipe 12 and the second connecting pipe 62.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides an automatic indirect heating equipment of scale removal which characterized in that includes:
the heat exchange equipment comprises a heat exchange equipment body (1) and a heat exchange device, wherein the heat exchange equipment body is provided with an internal cold water pipe (11) and an internal hot water pipe (12);
a descaling turnover box (2) which is provided with a liquid outlet (21) and a liquid return port (22);
the water inlet end of the inner cold water pipe (11) is selectively communicated with tap water or the liquid outlet (21) through the water inlet three-way valve (3);
the water outlet end of the internal hot water pipe (12) is selectively communicated with an external hot water pipe or the liquid return port (22) through the water outlet three-way valve (4);
and the circulating pump (5) is arranged on a passage between the descaling turnover box (2) and the heat exchange equipment body (1).
2. The automatic descaling heat exchange device according to claim 1, wherein the first inlet (31) of the water inlet three-way valve (3) is connected with tap water, the second inlet of the water inlet three-way valve (3) is connected with the liquid outlet (21) through a first connecting pipe (61), the first outlet (41) of the water outlet three-way valve (4) is connected with an external hot water pipe, the second outlet of the water outlet three-way valve (4) is connected with the liquid return port (22) through a second connecting pipe (62), and the circulating pump (5) is disposed on the first connecting pipe (61) or the second connecting pipe (62).
3. The automatic descaling heat exchange device according to claim 1, wherein the descaling turnover box (2) is further provided with a filling port (23) and a liquid discharge port (24), and a liquid discharge valve is arranged at the liquid discharge port (24);
or, the descaling turnover box (2) comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet (24), a liquid outlet (21) and a liquid return port (22), a liquid outlet valve is arranged at the position of the liquid outlet (24), and the cover body is movably covered at the opening of the box body.
4. The utility model provides an automatic indirect heating equipment of scale removal which characterized in that includes:
the heat exchange equipment comprises a heat exchange equipment body (1) and a heat exchanger, wherein the heat exchange equipment body is provided with an internal cold water pipe (11) and an internal hot water pipe (12), and the internal hot water pipe (12) is communicated with an external hot water pipe;
the descaling turnover box (2) is provided with a liquid outlet (21) and a liquid return port (22), and the liquid return port (22) is selectively communicated with the external hot water pipe;
the water inlet end of the inner cold water pipe (11) is selectively communicated with tap water or the liquid outlet (21) through the water inlet three-way valve (3);
and the circulating pump (5) is arranged on a passage between the descaling turnover box (2) and the heat exchange equipment body (1).
5. The automatic descaling heat exchange device according to claim 4, wherein the first inlet (31) of the water inlet three-way valve (3) is connected with tap water, the second inlet thereof is connected with the liquid outlet (21) through a first connecting pipe (61), the liquid return port (22) is connected with the external hot water pipe through a second connecting pipe (62), the second connecting pipe (62) and the external hot water pipe are respectively provided with a control valve (7), and the circulating pump (5) is arranged on the first connecting pipe (61) or the second connecting pipe (62).
6. The automatic descaling heat exchange device according to claim 4, wherein the descaling turnover box (2) is further provided with a filling port (23) and a liquid discharge port (24), and a liquid discharge valve is arranged at the liquid discharge port (24);
or the descaling turnover box (2) comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet (24), a liquid outlet (21) and a liquid return port (22), a liquid outlet valve is arranged at the position of the liquid outlet (24), and the cover body is arranged at the opening of the box body in a covering mode.
7. The utility model provides an automatic indirect heating equipment of scale removal which characterized in that includes:
the heat exchange equipment comprises a heat exchange equipment body (1) and a heat exchanger, wherein the heat exchange equipment body is provided with an inner cold water pipe (11) and an inner hot water pipe (12), and the inner cold water pipe (11) is communicated with tap water through an outer cold water pipe;
the descaling turnover box (2) is provided with a liquid outlet (21) and a liquid return opening (22), and the liquid outlet (21) is selectively communicated with the external cold water pipe;
the water outlet end of the internal hot water pipe (12) is selectively communicated with an external hot water pipe or the liquid return port (22) through the water outlet three-way valve (4);
and the circulating pump (5) is arranged on a passage between the descaling turnover box (2) and the heat exchange equipment body (1).
8. The automatic descaling heat exchange device according to claim 7, wherein the first outlet (41) of the water outlet three-way valve (4) is connected to the external hot water pipe, the second outlet thereof is connected to the liquid return port (22) through a second connecting pipe (62), the liquid outlet (21) is connected to the external cold water pipe through a first connecting pipe (61), the first connecting pipe (61) and the external cold water pipe are respectively provided with a control valve (7), and the circulating pump (5) is arranged on the first connecting pipe (61) or the second connecting pipe (62).
9. The automatic descaling heat exchange device according to claim 7, wherein the descaling turnover box (2) is further provided with a filling port (23) and a liquid discharge port (24), and a liquid discharge valve is arranged at the liquid discharge port (24);
or the descaling turnover box (2) comprises a box body and a cover body, wherein the top of the box body is provided with an opening, the box body is provided with a liquid outlet (24), a liquid outlet (21) and a liquid return port (22), a liquid outlet valve is arranged at the position of the liquid outlet (24), and the cover body is arranged at the opening of the box body in a covering mode.
10. The automatic scale removing heat exchange device according to any one of claims 1 to 9, wherein the heat exchange device is a gas water heater or a gas wall-hanging stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120468678.8U CN215810441U (en) | 2021-03-04 | 2021-03-04 | Automatic heat transfer equipment of descaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120468678.8U CN215810441U (en) | 2021-03-04 | 2021-03-04 | Automatic heat transfer equipment of descaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215810441U true CN215810441U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120468678.8U Active CN215810441U (en) | 2021-03-04 | 2021-03-04 | Automatic heat transfer equipment of descaling |
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| Country | Link |
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| CN (1) | CN215810441U (en) |
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2021
- 2021-03-04 CN CN202120468678.8U patent/CN215810441U/en active Active
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