CN206478849U - A kind of New-type boiler - Google Patents
A kind of New-type boiler Download PDFInfo
- Publication number
- CN206478849U CN206478849U CN201720151901.XU CN201720151901U CN206478849U CN 206478849 U CN206478849 U CN 206478849U CN 201720151901 U CN201720151901 U CN 201720151901U CN 206478849 U CN206478849 U CN 206478849U
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- heat
- chamber
- stage
- smoke
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000000779 smoke Substances 0.000 claims abstract description 56
- 238000002485 combustion reaction Methods 0.000 claims abstract description 41
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 238000000605 extraction Methods 0.000 claims description 23
- 239000010883 coal ash Substances 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 7
- 239000002956 ash Substances 0.000 claims description 5
- 230000007774 longterm Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 22
- 239000003546 flue gas Substances 0.000 abstract description 22
- 238000000151 deposition Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fuel Cell (AREA)
Abstract
The utility model discloses a kind of New-type boiler, it, which is provided with, multiple takes hot cell, and respectively take hot cell can independently use, after series connection, burnt in the combustion zone of the long-acting heat supply room flue gas of generation of fuel carries heat and takes hot cell into next stage, and by depositing smoke chamber can extend through the time in final stage takes hot cell, the remaining time in hot cell is being taken so as to extend partial heat, heat-absorption water is obtained more sufficient heat exchange with flue gas, and then reduce thermal loss, improve heat utilization rate.
Description
Technical Field
The utility model relates to a heating installation technical field, concretely relates to novel boiler.
Background
The boiler is an energy conversion device which converts chemical energy and electric energy of internal fuel into steam, high-temperature water or an organic heat carrier with certain heat energy and outputs the steam, the high-temperature water or the organic heat carrier. The boiler comprises a heat taking chamber, a combustion area and a pipeline, wherein flue gas generated by combustion of fuel in the combustion area is discharged through a flue, and heat exchange is realized with water in the pipeline in the circulation process. However, the boiler in the prior art is only provided with a single heat extraction chamber, the heat extraction chamber is provided with a group of water inlets and water outlets, the wall of the combustion area is completely covered with an insulating layer, and the wall is provided with a plurality of fuel filling ports and smoke outlets; therefore, the retention time of heat in the heat taking chamber is short, the surface area of the heat absorbing pipe is small, the heat loss is large, and the heat utilization efficiency is low.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel boiler to prolong the heat and in getting the retention time in the hot chamber, make endothermic water and flue gas obtain comparatively abundant heat exchange, thereby reduce calorific loss, improve heat utilization rate.
In order to achieve the above object, the utility model also provides a novel boiler, which comprises a plurality of stages of heat-taking chambers connected in series, wherein the smoke outlet of each heat-taking chamber is communicated with the smoke inlet of the next stage of heat-taking chamber, the heat-taking chamber comprises a long-acting heat supply chamber and at least one stage of common heat-taking chamber, and each common heat-taking chamber is respectively provided with an independent water inlet and an independent water outlet; the combustion zone and the fuel storage zone form the long-term heat supply chamber;
the first-stage heat taking chamber in the heat taking chamber is internally provided with a combustion area, a smoke outlet of the combustion area is arranged on the lower section of the side wall above the fire bars, a coal ash storage area communicated with an air inlet and ash outlet is arranged below the combustion area, the combustion area and the coal ash storage area are separated by the fire bars, and the smoke outlet and a fuel filling port are only arranged on a combustion wall on the periphery of the combustion area.
Furthermore, one or more smoke storage cavities are arranged in a final stage heat taking chamber in the common heat taking chamber, a multi-stage fin is arranged in the final stage heat taking chamber, smoke storage cavities are formed below the fin, and a channel for smoke to pass through is arranged between every two adjacent smoke storage cavities.
Further, the position relation between the heat taking chambers is any one of, any two of, or a combination of two or more of the following:
each stage of heat taking chamber is transversely arranged, and the heights of the heat taking chambers are equal; or,
each stage of heat collector is arranged longitudinally, and the next stage of heat collecting chamber is higher than the previous stage of heat collecting chamber; or,
the heat collectors of each stage are arranged alternately and longitudinally, and the heat collecting chamber of the middle stage is positioned below the heat collecting chamber of the upper stage and the heat collecting chamber of the lower stage.
Further, at least one of the middle-stage heat collecting chambers is internally provided with a snake-shaped heat collector, the snake-shaped heat collector comprises a plurality of groups of water plates which are transversely arranged, and a snake-shaped smoke passing channel is formed between every two adjacent water plates.
Further, a honeycomb heat collector is arranged in the middle-stage heat collecting chamber.
Furthermore, the heat extraction device also comprises a guide plate which is arranged in each level of water pipelines of the common heat extraction chamber so as to lead part of water in the heat extraction chamber to form Z-shaped circulation.
Furthermore, a heat absorption pipe is arranged on one side of the smoke outlet of the common heat extraction chamber.
Furthermore, a smoke damper is arranged on the other side of the smoke outlet of the common heat taking chamber.
Furthermore, the heat absorption pipe comprises a transverse water pipe and a vertical water pipe with preset angles, the upper end of the vertical water pipe is connected with the top of the combustion chamber, and the lower end of the vertical water pipe is connected with the wall of the combustion chamber; or the heat absorption pipe is a straight pipe or a bent pipe which is vertically arranged, and the heat absorption pipe extends inwards or downwards from the smoke exhaust port.
Furthermore, a heat-insulating layer is arranged on the wall of the combustion area, and the heat-insulating layer is only arranged on one part of the wall; the heat preservation layer is attached to the inner side of the wall, and is partially or completely embedded in the accommodating groove formed in the wall.
This novel boiler sets up a plurality of rooms of getting hot, and the back of establishing ties, the flue gas that fuel produced in the combustion area of long-term heat supply room carries the heat and gets into next-stage room of getting hot to can get hot room through depositing the cigarette chamber extension transit time at the final stage, thereby prolonged the heat and in getting the retention time of hot indoor, make the heat energy of water and flue gas obtain comparatively abundant heat exchange, and then reduced calorific loss, improved heat utilization rate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1-4 are schematic structural views of the novel boiler provided by the present invention.
Wherein,
0-long-acting heat supply chamber
1-first-stage heat-taking chamber
2-second heat-taking chamber
3-final stage heat extraction chamber
4-guide plate
5-Heat absorbing pipe
6-smoke damper
7-first water inlet
8-main outlet
9-second water inlet
10-second water outlet
11-combustion zone
12-air inlet and ash outlet
13-coal ash storage area
14-fire bar
15-smoke-resistant pipe
16-fuel filler
17-top of combustion zone
18-main water inlet
19-first water outlet
20-smoke outlet
31-cigarette storage cavity
32-fin
211-water board
212-serpentine smoke passage
22-honeycomb heat collector
23-Fuel storage area
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1-4, wherein, each of the drawings is an example of various heat-taking chamber combination modes and various different placement modes of heat-absorbing pipes of the novel boiler provided by the present invention, which are only embodiments and do not limit the protection scope of the present application.
In a specific implementation mode, the utility model provides a novel boiler includes multistage heat extraction chambers that establish ties mutually, and the exhaust port of each heat extraction chamber is linked together with the inlet flue of the next stage heat extraction chamber, heat extraction chamber includes long-term heat supply chamber 0 and at least one stage of ordinary heat extraction chamber, and wherein long-term heat supply chamber 0 can be as the first stage heat extraction chamber, and each ordinary heat extraction chamber is equipped with independent water inlet and independent delivery port respectively, and wherein main export 8 can be steam outlet or water outlet; each heat taking chamber is only provided with a water inlet and a water outlet, so that hot water can only be discharged from the highest heat position of the heat taking chamber to work, and the heat conversion effect is improved; the long-acting heat supply chamber 0 is internally provided with a combustion area 11 and a fuel storage space 23, a smoke outlet 20 of the long-acting heat supply chamber 0 is arranged at the lower section of the side wall above the fire bars 14, a coal ash storage area 13 communicated with an air inlet and ash outlet 12 is arranged below the combustion area 11, the air inlet and ash outlet 12 is also used as an air inlet 16, and the combustion area 11 is separated from the coal ash storage area 13 through the fire bars 14; the smoke outlet is arranged at the lower section of the side wall of the long-acting heat supply chamber 0. After fuel is filled in through the fuel filling opening 16, the fuel is combusted at the combustion area 11, the fuel filling opening 16 is covered, part of the fuel is placed at the fuel storage space 23, smoke can be discharged from the smoke outlet 20, and long-time uninterrupted supply of high-efficiency heat energy can be guaranteed.
One or more smoke storage cavities 31 are arranged in a final stage heat taking chamber 3 in the multi-stage heat taking device, multi-stage fins 32 are arranged in the final stage heat taking chamber 3, cavities between two adjacent fins 32 form the smoke storage cavities 31, a section of fin extends out of the heat taking chamber in a staggered mode, the end point of the extending fin is lower than the root or the lower part of the fin to form a cavity, and part of heat energy is stored in the smoke storage cavity below the fin 32. The long-acting heat supply chamber can supply high heat energy uninterruptedly for a long time.
The position of the snake-shaped heat collector is not fixed, and the snake-shaped heat collector can be arranged in any one or more stages of heat collecting chambers of the middle stage heat collecting chamber. The above-mentioned general preheating chambers of each stage can be used singly or in combination.
The fins 32 may be arranged in various forms such as a horizontally extending linear form, an inclined form, or an arc form, and may be selected according to actual use requirements.
A smoke blocking pipe 15 is provided in the final stage heat extraction chamber 3, and extends downward or inward at the smoke discharge port 20.
This novel boiler sets up a plurality of rooms of getting hot, and the first grade is got the room and all can be used independently, the back of establishing ties, the flue gas that fuel produced in 11 internal combustion in combustion area carries the heat and gets into next grade and get the room of heating to can get hot room 3 at the final stage through depositing the extension transit time of cigarette chamber 31, thereby prolonged partial heat and in getting the retention time in the room of heating, make the heat energy of water and flue gas obtain comparatively abundant exchange, and then reduced calorific loss, improved heat utilization.
According to the needs of spatial arrangement, each heat-taking chamber can have a plurality of overall arrangements such as upper and lower, left and right, height, no matter what kind of arrangement mode is taken between the multistage heat-taking chamber, all be in the utility model discloses an within the protection scope. Specifically, the position relationship among the heat collectors is any one of, any two of, or a combination of two or more of the following: each stage of heat taking chamber is transversely arranged, and the heights of the heat taking chambers are equal; or, each stage of heat collector is arranged longitudinally, and the next stage of heat collecting chamber is higher than the previous stage of heat collecting chamber; or, each stage of heat collectors are arranged in an alternate longitudinal mode, and the middle stage of heat collecting chamber is positioned below the upper stage of heat collecting chamber and the lower stage of heat collecting chamber.
In order to further increase the heat extraction effect, at least one of the intermediate-stage heat extraction chambers 2 is provided with a serpentine heat extractor 21, the serpentine heat extractor 21 is formed by a plurality of groups of water plates 211 protruding in a transverse staggered manner, a serpentine smoke passage 212 is formed between every two adjacent water plates 211, and when the smoke passes through the serpentine heat extractor 21, the smoke needs to pass through the serpentine smoke passage 212, so that the heat exchange area is further increased, and the retention time is increased.
Further, a honeycomb heat collector 22 is arranged in the middle-stage heat collecting chamber 2, and the honeycomb heat collector is specifically in the form of a plurality of holes arranged on a water layer so as to improve the heat exchange capacity.
In the above-described embodiment, in order to improve the water fluidity, a plurality of baffles 4 may be provided in each stage of the water pipe of the heat-extracting chamber (except the first-stage heat-extracting chamber), the baffles 4 may be provided in the water pipe at intervals, and the left and right baffles 4 may be alternately distributed so that most of the water in the heat-extracting chamber flows in a Z-shape.
A heat absorption pipe 5 can be further arranged on one side of a smoke outlet of the common heat taking chamber, a smoke damper 6 which can be made of plates or other various forms is arranged on the other side of the smoke outlet, and partial smoke is reserved on the top 17 of the combustion area to convert heat. Through the design of the heat absorption pipe 5 and the smoke damper 6, the retention time and the heat absorption area of partial heat are further prolonged, and the heat absorption capacity is improved. Specifically, the heat absorbing pipe 5 may have various arrangements, for example, the heat absorbing pipe 5 includes a horizontal water pipe and a vertical water pipe having a predetermined angle, and an upper end of the vertical water pipe is connected to a top of the combustion area, and the horizontal water pipe and the vertical water pipe may be L-shaped or C-shaped. Or the heat absorption pipe 5 is a vertically arranged pipe, and the heat absorption pipe 5 extends inwards or downwards from the smoke exhaust port; or the heat absorption pipe is a section of pipe extending downwards from the top of the combustion area, and the lower end of the pipe is communicated with the wall. The smoke damper 6 can be in the form of a plate, a triangle or other various shapes.
In order to improve the heat exchange efficiency, a chimney of an exhaust port of the final stage heat extraction chamber can extend downwards or inwards for a section, so that part of smoke is stored above the heat extraction chamber, and the heat exchange time is prolonged.
Traditional 11 walls in combustion zone from top to bottom have all covered heat preservation 15, and this has just led to the reduction of heat absorption area, in order to overcome this problem, the utility model provides a novel boiler, the heat preservation only set up in a part of wall to the influence to heat energy absorption efficiency has been reduced. Specifically, the heat insulation layer may be attached to the inner side of the wall, attached to the outer side of the wall, or partially or completely embedded in the accommodating groove formed in the wall.
It needs to be further explained that, in the novel boiler, the flue gas traveling mode is as follows:
fuel (such as coal) is filled into the combustion area 11 from a fuel filling port 16 of the primary heat taking chamber 1 and is stored above the fire bars, air enters from an air inlet and a coal ash outlet, the heat preservation of the heat preservation layer can ensure that the coal is fully combusted, but the heat absorption amount of the wall is limited, the coal generates flue gas carrying heat energy during combustion, the flue gas moves to the wall without the heat preservation layer and absorbs the heat energy through the section of wall, when the flue gas flows upwards to the lower part of the heat absorption pipe 5, the traveling direction of part of the flue gas is changed, the heat energy is absorbed through the heat absorption pipe 5, the circulation direction of the flue gas is changed after the flue gas reaches the top 17 of the combustion area, the heat energy is absorbed, the flue gas reaches the position of the smoke damper 6 through the smoke outlet 20, part of the flue gas is prevented from passing through; the flue gas walks to next-stage heat taking chamber and snakelike heat taker 21, the flue gas has changed the direction of walking by the water board, increased the position of absorbing heat energy, absorbed heat energy by snakelike heat taker 21, then the flue gas has arrived honeycomb heat taker 22, and changed the walking mode by honeycomb heat taker 22, absorbed heat energy, after multistage heat taking chamber heats, reach last heat taking chamber 3 through the outlet flue, partial flue gas absorbs heat energy through depositing smoke cavity 31 storage, the flue gas passes through the exhaust port and arranges to the air in at last, the work task has been accomplished.
It should be noted that the multi-stage heat extraction chamber described herein is two or more heat extraction chambers.
The water walking mode is as follows:
the heat transfer water may be water or other liquid, and water is commonly used in boilers as the heat transfer water, so the following description of the water traveling mode takes water as an example. Because the conversion rate of the absorbed heat energy of the water with similar temperature is low, the absorbed heat energy of the water with large temperature difference is high, the water flows in from the main water inlet 18 and is guided by the guide plate 4 to ensure that most of the water in the final stage heat taking chamber flows in a Z shape; water flows to the third water outlet, water flows to the second water inlet 9 again, the water is guided by the guide plate 4 and flows to the second water outlet 10, the water flows to the first water inlet 7 and flows to the main outlet, the water works at a required place, and the water flows to the main water inlet after the work is finished, so that the water circulates.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A novel boiler is characterized by comprising a plurality of stages of heat taking chambers which are connected in series, wherein the smoke outlet of each heat taking chamber is communicated with the smoke inlet of the next stage of heat taking chamber, each heat taking chamber comprises a long-acting heat supply chamber and at least one stage of common heat taking chamber, and each common heat taking chamber is respectively provided with an independent water inlet and an independent water outlet; the combustion zone and the fuel storage zone form the long-term heat supply chamber;
the first-stage heat taking chamber in the heat taking chamber is internally provided with a combustion area, a smoke outlet of the combustion area is arranged on the lower section of the side wall above the fire bars, a coal ash storage area communicated with an air inlet and ash outlet is arranged below the combustion area, the combustion area and the coal ash storage area are separated by the fire bars, and the smoke outlet and a fuel filling port are only arranged on a combustion wall on the periphery of the combustion area.
2. The novel boiler according to claim 1, wherein one or more smoke storage cavities are arranged in a final stage heat taking chamber in the common heat taking chamber, a plurality of stages of fins are arranged in the final stage heat taking chamber, smoke storage cavities are formed below the fins, and a channel for smoke to pass through is arranged between every two adjacent smoke storage cavities.
3. The novel boiler according to claim 2, wherein the position relationship between the heat-taking chambers is any one of, any two of, or a combination of two or more of:
each stage of heat taking chamber is transversely arranged, and the heights of the heat taking chambers are equal; or,
each stage of heat collector is arranged longitudinally, and the next stage of heat collecting chamber is higher than the previous stage of heat collecting chamber; or,
the heat collectors of each stage are arranged alternately and longitudinally, and the heat collecting chamber of the middle stage is positioned below the heat collecting chamber of the upper stage and the heat collecting chamber of the lower stage.
4. The novel boiler according to claim 2, wherein at least one of the intermediate-stage heat-collecting chambers is provided with a serpentine-shaped heat collector, the serpentine-shaped heat collector comprises a plurality of groups of water plates which are transversely arranged, and a serpentine-shaped smoke passing channel is formed between every two adjacent water plates.
5. The new boiler according to claim 4, characterized in that a honeycomb heat collector is further arranged in the middle stage heat collecting chamber.
6. The novel boiler according to claim 2, further comprising a guide plate disposed in each stage of water piping of the common heat-extracting chamber to circulate a portion of water in the heat-extracting chamber in a zigzag shape.
7. The novel boiler according to any one of claims 1 to 6, wherein a heat absorbing pipe is arranged on one side of the smoke outlet of the common heat extraction chamber.
8. The novel boiler according to claim 7, wherein a smoke damper is arranged on the other side of the smoke outlet of the common heat extraction chamber.
9. The novel boiler according to claim 8, wherein the heat absorption pipe comprises a horizontal water pipe and a vertical water pipe with a preset angle, the upper end of the vertical water pipe is connected with the top of the combustion chamber, and the lower end of the vertical water pipe is connected with the wall of the combustion chamber; or the heat absorption pipe is a straight pipe or a bent pipe which is vertically arranged, and the heat absorption pipe extends inwards or downwards from the smoke exhaust port.
10. The novel boiler according to any of claims 1-6, characterized in that the walls of the combustion zone are provided with an insulation layer, which is provided only on a part of the walls; the heat preservation layer is attached to the inner side of the wall, and is partially or completely embedded in the accommodating groove formed in the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151901.XU CN206478849U (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151901.XU CN206478849U (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478849U true CN206478849U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720151901.XU Expired - Fee Related CN206478849U (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
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| Country | Link |
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| CN (1) | CN206478849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
-
2017
- 2017-02-20 CN CN201720151901.XU patent/CN206478849U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
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Granted publication date: 20170908 Termination date: 20190220 |