CN111412769A - Boiler flue gas recovery heater - Google Patents
Boiler flue gas recovery heater Download PDFInfo
- Publication number
- CN111412769A CN111412769A CN202010249806.XA CN202010249806A CN111412769A CN 111412769 A CN111412769 A CN 111412769A CN 202010249806 A CN202010249806 A CN 202010249806A CN 111412769 A CN111412769 A CN 111412769A
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- Prior art keywords
- pipe
- cavity
- water
- heat
- flue gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention provides a boiler flue gas recovery heater. The boiler flue gas recovery heater comprises a bracket and a shell fixed on the bracket, wherein two sealing plates are fixed in the shell, the inner cavity of the shell is divided into a first cavity, a second cavity and a third cavity which are sequentially arranged from left to right by the two sealing plates, a heat conduction pipe is horizontally arranged in the second cavity, two ends of the heat conduction pipe are respectively positioned in the first cavity and the third cavity, a water inlet pipe and a water outlet pipe are fixed in the first cavity, the left end of the water outlet pipe is communicated with the water inlet pipe, the right end of the water outlet pipe is inserted in the left, the water pump comprises a shell, a water inlet pipe, a water outlet pipe, a water pump, a shell, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the right end of the shell is in a circular pipe shape, the middle part of the heat pipe is in a conical shape, the maximum inner diameter and the minimum inner diameter of the middle part of the heat pipe are respectively the same as the inner diameter of. The invention has the advantage of convenient cleaning of the heat conduction pipe.
Description
Technical Field
The invention belongs to the field of energy conservation and environmental protection, and relates to a boiler flue gas recovery device, in particular to a boiler flue gas recovery heater.
Background
The existing boiler flue gas recovery device is like a gas-fired and oil-fired boiler flue gas recovery energy saver disclosed in the Chinese patent library (application number: 200920310875.6, respectively; authorization notice number: CN 201475978U, which is provided with a flue gas interface communicated with a smoke exhaust pipe of a gas-fired and oil-fired boiler, the flue gas interface is communicated with one end of a water tank with the volume of 0.25m3-3m3, 30-240 flue pipes arranged in parallel with the flue gas interface are arranged in the water tank, the distance between the two upper and lower simulated flue pipes is 60-100mm, a cold water inlet pipe and a hot water outlet pipe are arranged on the shell of the water tank, a smoke outlet pipe is arranged at the other end of the water tank, a drain pipe is arranged at the bottom of the water tank, and an atmosphere communicating pipe is arranged at the upper part of.
The device has the advantage of convenient use by leading high-temperature flue gas into the flue pipe and heating water through heat exchange.
However, the above-mentioned device still has a problem: the flue gas contains a large amount of dust, and the dust is attached to the inner wall of the flue pipe to block the heat transfer of the flue pipe, so that the flue pipe needs to be cleaned to keep high heat transfer performance under long-term use. When the device is used for cleaning the smoke tube, the smoke tube can only be detached firstly, so that the operation is inconvenient.
Disclosure of Invention
The invention aims to provide a boiler flue gas recovery heater aiming at the problems in the prior art, and solves the technical problem of how to conveniently clean a heat conducting pipe.
The purpose of the invention can be realized by the following technical scheme: a boiler flue gas recovery heater comprises a support and a shell fixed on the support, wherein two sealing plates are vertically fixed in the shell, the inner cavity of the shell is divided into a first cavity, a second cavity and a third cavity by the two sealing plates, the first cavity, the second cavity and the third cavity are not communicated with each other, a heat conduction pipe is horizontally arranged in the second cavity, two ends of the heat conduction pipe respectively penetrate through the two sealing plates and are respectively positioned in the first cavity and the third cavity, two ends of the heat conduction pipe are respectively and fixedly connected with the two sealing plates in a sealing way, a water inlet, a water outlet, a smoke inlet and a smoke outlet are arranged on the shell, the water inlet and the water outlet are both communicated with the second cavity, the smoke outlet is communicated with the third cavity, the smoke inlet is communicated with the first cavity, the boiler flue gas recovery heater is characterized in that a water inlet pipe is vertically fixed in the first cavity, a water discharge pipe is horizontally fixed in the first, the left end and the inlet tube intercommunication of drain pipe, the right-hand member of drain pipe is inserted in the left end of heat pipe, and the left and right both ends of heat pipe all are the pipe form, and the middle part of heat pipe is conical, and the biggest internal diameter and the minimum internal diameter at heat pipe middle part are the same with the left end internal diameter of heat pipe and the right-hand member internal diameter of heat pipe respectively, and the external diameter of drain pipe is less than the left end internal diameter of heat pipe, and forms annular gap between the lateral wall of drain pipe and the left end inside wall of heat pipe, the internal diameter of drain pipe be greater than the right-hand member internal diameter of heat pipe, this device still includes the water pump, and the lower port intercommunication of the export of water pump and inlet tube, the bottom of casing be equipped with two rows of mouths of water, two rows of mouths of water are.
During actual installation, the inlet of the water pump is connected with a municipal water supply pipeline.
During normal use, the valve is in the closed state, and the exhaust high temperature flue gas of boiler enters the chamber one through advancing the mouth and discharging into, then loops through annular gap, heat pipe, chamber three and exhaust port and discharge, and the flue gas of heat pipe transmits the high temperature to the aquatic that is in the chamber two to realize the water heating.
The process of cleaning the heat conduction pipe is as follows: the water pump is with water suction inlet tube, and in water passed through the drain pipe and discharged into the heat pipe at a high speed, because the internal diameter of drain pipe is greater than the right-hand member internal diameter of heat pipe, make water pile up at the heat pipe middle part to it forms the backwash more under the follow-up rivers effect, in order to accomplish the washing of whole root heat pipe, simultaneously, rivers converge and form great vortex together, with effectively improving washing pressure, make the dust attached to the heat pipe inner wall more drop easily, thereby effectively improve the cleaning performance.
In the boiler flue gas recovery heater, the heat conduction pipes are arranged in parallel from top to bottom, the water discharge pipes and the heat conduction pipes are the same in quantity and are opposite to each other in position, and each water discharge pipe is communicated with the water inlet pipe.
In foretell boiler flue gas recovery heater, the lateral wall of inlet tube on have outside protrusion and be pipy connecting portion, connecting portion and drain pipe quantity the same and the position is just right one by one, the left end cover of drain pipe is established outside the connecting portion that corresponds, and drain pipe and connecting portion are sealed to link firmly. By adopting the design, the device has the advantages of simple structure and convenience in assembly.
In the boiler flue gas recovery heater, the outer side wall of the connecting part is provided with an annular groove, a first sealing ring is arranged in the annular groove, and the outer side wall of the first sealing ring is abutted to the inner side wall of the drain pipe. Under the effect of the sealing ring, reliable sealing is formed between the drain pipe and the connecting part, and the whole cleaning process is stably realized.
In foretell boiler flue gas recovery heater, the casing on be equipped with the through-hole that supplies the inlet tube to stretch out, the lateral wall of inlet tube on seted up ring groove, be equipped with sealing washer two in the ring groove, the lateral wall of sealing washer two offsets with the pore wall of through-hole.
Compared with the prior art, the boiler flue gas recovery heater has the following advantages:
1. the internal diameter through setting up the drain pipe is greater than the right-hand member internal diameter of heat pipe, makes water pile up at the heat pipe middle part to in more formation backwash under follow-up rivers effect, in order to accomplish the washing of whole root heat pipe, simultaneously, rivers converge and form great vortex together, in order effectively to improve washing pressure, make the dust attached to on the heat pipe inner wall drop more easily, thereby effectively improve the cleaning performance.
2. The whole cleaning process of the heat conduction pipe is completely and automatically carried out, and any part is not required to be disassembled and assembled in the cleaning process, so that the operation steps are effectively reduced, and the operation convenience is improved.
Drawings
FIG. 1 is a schematic structural view of the boiler flue gas recovery heater.
Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
In the figure, 1, a bracket; 2. a housing; 2a, a first cavity; 2b, a cavity II; 2c, a cavity III; 2d, a water inlet; 2e, a water outlet; 2f, a smoke inlet; 2g, a smoke outlet; 2h, a water outlet; 3. a sealing plate; 4. a heat conducting pipe; 5. a water inlet pipe; 5a, a connecting part; 6. a drain pipe; 7. a first sealing ring; 8. a second sealing ring; 9. an annular gap; 10. a water pump; 11. and (4) a valve.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figure 1, the boiler flue gas recovery heater comprises a support 1 and a shell 2 fixed on the support 1, wherein two sealing plates 3 are vertically fixed in the shell 2, the inner cavity of the shell 2 is divided into a first cavity 2a, a second cavity 2b and a third cavity 2c by the two sealing plates 3, and the first cavity 2a, the second cavity 2b and the third cavity 2c are not communicated with each other. Preferably, the sealing plate 3 is fixedly connected with the housing 2 in a welding manner.
The second cavity 2b is horizontally provided with a heat conduction pipe 4 made of a heat conduction material, the heat conduction pipe 4 can be made of brass or aluminum alloy, and the heat conduction pipe 4 is preferably made of a brass material, so that the heat conduction pipe has high heat conduction performance. Two ends of the heat conduction pipe 4 respectively penetrate through the two sealing plates 3 and are respectively positioned in the first cavity 2a and the third cavity 2c, and two ends of the heat conduction pipe 4 are respectively and fixedly connected with the two sealing plates 3 in a sealing mode. Preferably, the heat conducting pipe 4 and the sealing plate 3 are fixedly connected by welding. The shell 2 is provided with a water inlet 2d, a water outlet 2e, a smoke inlet 2f and a smoke outlet 2g, wherein the water inlet 2d and the water outlet 2e are communicated with the second cavity 2b, the smoke outlet 2g is communicated with the third cavity 2c, and the smoke inlet 2f is communicated with the first cavity 2 a. Preferably, the water inlet 2d and the smoke outlet 2g are both arranged at the top of the shell 2, and the water outlet 2e is arranged at the bottom of the shell 2.
As shown in fig. 1 and 3, a water inlet pipe 5 is vertically fixed in the first cavity 2a, and a water outlet pipe 6 is horizontally fixed in the first cavity. Wherein, the lower extreme of inlet tube 5 stretches out casing 2, and the top and the bottom of inlet tube 5 are the closed form respectively and open form. Further, a through hole for the water inlet pipe 5 to extend out is formed in the shell 2, an annular clamping groove is formed in the outer side wall of the water inlet pipe 5, a sealing ring II 8 is arranged in the annular clamping groove, and the outer side wall of the sealing ring II 8 abuts against the hole wall of the through hole, so that reliable sealing is formed between the shell 2 and the water inlet pipe 5.
As shown in fig. 1 and 2, the drain pipe 6 is in a straight pipe shape, the left end of the drain pipe 6 communicates with the inlet pipe 5, and the right end of the drain pipe 6 is inserted into the left end of the heat pipe 4. Specifically, the side wall of the water inlet pipe 5 is provided with a tubular connecting part 5a protruding outwards, and the connecting part 5a and the water inlet pipe 5 are of an integrated structure and are communicated with each other. The left end of the drain pipe 6 is sleeved outside the corresponding connecting part 5a, and the drain pipe 6 is fixedly connected with the connecting part 5a in a sealing manner. In this embodiment, the drain pipe 6 and the connecting portion 5a are preferably fixedly connected by welding; an annular groove is formed in the outer side wall of the connecting portion 5a, a first sealing ring 7 is arranged in the annular groove, and the outer side wall of the first sealing ring 7 is abutted to the inner side wall of the drain pipe 6.
To explain further, the heat transfer tubes 4 are provided in plural numbers and arranged in parallel in the vertical direction. The number of the water discharge pipes 6 is the same as that of the heat conduction pipes 4, and the positions of the water discharge pipes and the heat conduction pipes are opposite to each other; the connecting parts 5a and the water discharging pipes 6 are the same in quantity and are opposite to each other in position one by one, so that each water discharging pipe 6 is communicated with the water inlet pipe 5. And the first sealing ring 7 is arranged on each connecting part 5 a.
As shown in fig. 1, the left and right ends of the heat pipe 4 are both in the shape of a circular tube, the middle part of the heat pipe 4 is in the shape of a cone, the diameter of the middle part of the heat pipe 4 is gradually reduced from left to right, and at this time, the maximum inner diameter and the minimum inner diameter of the middle part of the heat pipe 4 are respectively the same as the inner diameter of the left end of the heat pipe 4 and the inner diameter of the right end of the heat pipe 4. It is preferable that the central axes of both the heat conductive pipes 4 and the water discharge pipe 6 are collinear. The outer diameter of the drain pipe 6 is smaller than the inner diameter of the left end of the heat conduction pipe 4, and an annular gap 9 is formed between the outer side wall of the drain pipe 6 and the inner side wall of the left end of the heat conduction pipe 4. The inside diameter of the drain pipe 6 is larger than the right end inside diameter of the heat transfer pipe 4.
The device further comprises a water pump 10, preferably the water pump 10 is located outside the housing 2. The outlet of the water pump 10 communicates with the lower port of the water inlet pipe 5, and in this embodiment, the water pump 10 and the water inlet pipe 5 are connected by a flange structure. Two rows of water outlets 2h are arranged at the bottom of the shell 2, the two rows of water outlets 2h are respectively communicated with the first cavity 2a and the third cavity 2c, and valves 11 for controlling the water outlets 2h to be connected with the outside are arranged at the two rows of water outlets 2 h.
In actual installation, the inlet of the water pump 10 is connected to a municipal water supply pipeline.
During normal use, valve 11 is in the closed condition, and the exhaust high temperature flue gas of boiler is discharged into chamber one 2a through advancing smoke mouth 2f, then loops through annular gap 9, heat pipe 4, three 2c in chamber and exhaust port 2g and discharges, and the flue gas of heat pipe 4 transmits the high temperature to the aquatic that is in chamber two 2b to realize the water heating.
The process of cleaning the heat conductive pipe 4 is as follows: water pump 10 is with water suction inlet tube 5, in water passes through drain pipe 6 and high-speed discharges into heat pipe 4 after that, because the internal diameter of drain pipe 6 is greater than the right-hand member internal diameter of heat pipe 4, make water pile up at heat pipe 4 middle part to it forms the backwash more under subsequent rivers effect, in order to accomplish the washing of whole root heat pipe 4, simultaneously, rivers converge and form great vortex together, in order effectively to improve washing pressure, make the dust attached to on heat pipe 4 inner wall drop more easily, thereby effectively improve the cleaning performance.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A boiler flue gas recovery heater comprises a support and a shell fixed on the support, wherein two sealing plates are vertically fixed in the shell, the inner cavity of the shell is divided into a first cavity, a second cavity and a third cavity by the two sealing plates, the first cavity, the second cavity and the third cavity are not communicated with each other, a heat conduction pipe is horizontally arranged in the second cavity, two ends of the heat conduction pipe respectively penetrate through the two sealing plates and are respectively positioned in the first cavity and the third cavity, two ends of the heat conduction pipe are respectively and fixedly connected with the two sealing plates in a sealing way, a water inlet, a water outlet, a smoke inlet and a smoke outlet are arranged on the shell, the water inlet and the water outlet are both communicated with the second cavity, the smoke outlet is communicated with the third cavity, the smoke inlet is communicated with the first cavity, the boiler flue gas recovery heater is characterized in that a water inlet pipe is vertically fixed in the first cavity, a water discharge pipe is horizontally fixed in the first, the left end and the inlet tube intercommunication of drain pipe, the right-hand member of drain pipe is inserted in the left end of heat pipe, and the left and right both ends of heat pipe all are the pipe form, and the middle part of heat pipe is conical, and the biggest internal diameter and the minimum internal diameter at heat pipe middle part are the same with the left end internal diameter of heat pipe and the right-hand member internal diameter of heat pipe respectively, and the external diameter of drain pipe is less than the left end internal diameter of heat pipe, and forms annular gap between the lateral wall of drain pipe and the left end inside wall of heat pipe, the internal diameter of drain pipe be greater than the right-hand member internal diameter of heat pipe, this device still includes the water pump, and the lower port intercommunication of the export of water pump and inlet tube, the bottom of casing be equipped with two rows of mouths of water, two rows of mouths of water are.
2. The boiler flue gas recovery heater of claim 1, wherein the heat conducting pipes are arranged in parallel up and down, the number of the water discharging pipes and the heat conducting pipes is the same, the positions of the water discharging pipes and the heat conducting pipes are opposite, and each water discharging pipe is communicated with the water inlet pipe.
3. The boiler flue gas recovery heater of claim 2, wherein the side wall of the inlet pipe is provided with a connecting part which protrudes outwards and is in a tubular shape, the connecting part and the drain pipes are same in quantity and are opposite to each other in position, the left ends of the drain pipes are sleeved outside the corresponding connecting parts, and the drain pipes are fixedly connected with the connecting parts in a sealing manner.
4. The boiler flue gas recovery heater of claim 3, wherein an annular groove is formed in the outer side wall of the connecting portion, a first sealing ring is arranged in the annular groove, and the outer side wall of the first sealing ring abuts against the inner side wall of the drain pipe.
5. The boiler flue gas recovery heater of claim 1, wherein the casing is provided with a through hole for the water inlet pipe to extend out, the outer side wall of the water inlet pipe is provided with an annular clamping groove, a second sealing ring is arranged in the annular clamping groove, and the outer side wall of the second sealing ring is abutted against the wall of the through hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010249806.XA CN111412769A (en) | 2020-04-01 | 2020-04-01 | Boiler flue gas recovery heater |
| JP2020175675A JP2021162296A (en) | 2020-04-01 | 2020-10-19 | Boiler flue gas recovery heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010249806.XA CN111412769A (en) | 2020-04-01 | 2020-04-01 | Boiler flue gas recovery heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111412769A true CN111412769A (en) | 2020-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010249806.XA Withdrawn CN111412769A (en) | 2020-04-01 | 2020-04-01 | Boiler flue gas recovery heater |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2021162296A (en) |
| CN (1) | CN111412769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097284A (en) * | 2020-09-14 | 2020-12-18 | 衡阳市大成锅炉有限公司 | High-efficient waste heat recovery device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244193A (en) * | 1988-08-02 | 1990-02-14 | Nippon Steel Chem Co Ltd | Multitubular heat exchanger |
| US5160548A (en) * | 1991-09-09 | 1992-11-03 | Ohmstede Mechanical Services, Inc. | Method for cleaning tube bundles using a slurry |
| CN2539131Y (en) * | 2002-04-01 | 2003-03-05 | 王学峰 | Automatic descaling device for solar heat collecting pipe |
| CN1657861A (en) * | 2005-03-22 | 2005-08-24 | 赵志远 | Cleaning method for geothermal pipe line and its cleaning equipment |
| CN202675691U (en) * | 2012-05-21 | 2013-01-16 | 黄冈师范学院 | Water-saving easily-cleaned efficient solar water heater |
| CN202734619U (en) * | 2012-07-19 | 2013-02-13 | 广州同方瑞风空调有限公司 | Coiled tube finned type heat exchanger with tube inside capable of being cleaned |
| CN104832934A (en) * | 2015-05-08 | 2015-08-12 | 江苏万代环境科技有限公司 | Boiler flue gas dust removal and waste heat recovery energy-saving device |
| CN205014401U (en) * | 2015-08-14 | 2016-02-03 | 青岛老转村节能技术有限公司 | Waste heat, coal tar recovery system for boiler |
| CN205037808U (en) * | 2015-09-09 | 2016-02-17 | 中国石油化工股份有限公司 | Boiler economizer belt cleaning device |
| CN206291197U (en) * | 2016-12-20 | 2017-06-30 | 海宁马桥大都市热电有限公司 | Boiler waste heat recovery reuse means |
| CN206974273U (en) * | 2017-05-16 | 2018-02-06 | 江苏纽卡机电设备有限公司 | A kind of air-conditioning condenser cleaning device |
| CN208998107U (en) * | 2018-07-19 | 2019-06-18 | 亿利智慧能源科技(安徽)有限公司 | A kind of residual heat from boiler fume generator |
-
2020
- 2020-04-01 CN CN202010249806.XA patent/CN111412769A/en not_active Withdrawn
- 2020-10-19 JP JP2020175675A patent/JP2021162296A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244193A (en) * | 1988-08-02 | 1990-02-14 | Nippon Steel Chem Co Ltd | Multitubular heat exchanger |
| US5160548A (en) * | 1991-09-09 | 1992-11-03 | Ohmstede Mechanical Services, Inc. | Method for cleaning tube bundles using a slurry |
| CN2539131Y (en) * | 2002-04-01 | 2003-03-05 | 王学峰 | Automatic descaling device for solar heat collecting pipe |
| CN1657861A (en) * | 2005-03-22 | 2005-08-24 | 赵志远 | Cleaning method for geothermal pipe line and its cleaning equipment |
| CN202675691U (en) * | 2012-05-21 | 2013-01-16 | 黄冈师范学院 | Water-saving easily-cleaned efficient solar water heater |
| CN202734619U (en) * | 2012-07-19 | 2013-02-13 | 广州同方瑞风空调有限公司 | Coiled tube finned type heat exchanger with tube inside capable of being cleaned |
| CN104832934A (en) * | 2015-05-08 | 2015-08-12 | 江苏万代环境科技有限公司 | Boiler flue gas dust removal and waste heat recovery energy-saving device |
| CN205014401U (en) * | 2015-08-14 | 2016-02-03 | 青岛老转村节能技术有限公司 | Waste heat, coal tar recovery system for boiler |
| CN205037808U (en) * | 2015-09-09 | 2016-02-17 | 中国石油化工股份有限公司 | Boiler economizer belt cleaning device |
| CN206291197U (en) * | 2016-12-20 | 2017-06-30 | 海宁马桥大都市热电有限公司 | Boiler waste heat recovery reuse means |
| CN206974273U (en) * | 2017-05-16 | 2018-02-06 | 江苏纽卡机电设备有限公司 | A kind of air-conditioning condenser cleaning device |
| CN208998107U (en) * | 2018-07-19 | 2019-06-18 | 亿利智慧能源科技(安徽)有限公司 | A kind of residual heat from boiler fume generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097284A (en) * | 2020-09-14 | 2020-12-18 | 衡阳市大成锅炉有限公司 | High-efficient waste heat recovery device |
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| Publication number | Publication date |
|---|---|
| JP2021162296A (en) | 2021-10-11 |
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Application publication date: 20200714 |
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