CN114777148A - Flue gas waste heat recovery device - Google Patents
Flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN114777148A CN114777148A CN202210327829.7A CN202210327829A CN114777148A CN 114777148 A CN114777148 A CN 114777148A CN 202210327829 A CN202210327829 A CN 202210327829A CN 114777148 A CN114777148 A CN 114777148A
- Authority
- CN
- China
- Prior art keywords
- exhaust pipe
- smoke exhaust
- plate
- sealing
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
- F23J3/026—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention provides a flue gas waste heat recovery device, which belongs to the technical field of flue gas waste heat recovery and comprises a water tank, a smoke exhaust pipe, an elastic connecting piece, an air blocking component, a first driving component, a second driving component, a sliding plate and a sealing component, wherein the smoke exhaust pipe penetrates through the water tank, the air blocking component is movably arranged at one end of the smoke exhaust pipe and used for blocking flue gas in the smoke exhaust pipe, and the sliding plate is movably arranged in the smoke exhaust pipe. Compared with the prior art, the smoke exhaust pipe has the advantages that the sliding plate moves back and forth along the inner part of the smoke exhaust pipe and the sealing assembly moves back and forth, so that the residence time of smoke in the smoke exhaust pipe can be prolonged, the heat exchange effect between the smoke and a water body is improved, the waste heat recovery effect of the smoke is improved, and smoke dust attached to the inner wall of the smoke exhaust pipe can be scraped when the sliding plate moves along the inner part of the smoke exhaust pipe, so that the problem of poor heat exchange effect with the water body due to the existence of the smoke dust on the inner wall of the smoke exhaust pipe is solved.
Description
Technical Field
The invention belongs to the technical field of flue gas waste heat recovery, and particularly relates to a flue gas waste heat recovery device.
Background
At present, coal is usually used as fuel in the industrial production process, a large amount of smoke is generated during the combustion of the coal, the smoke contains a large amount of heat, and in order to recycle the heat of the smoke, the heat in the smoke is usually used for heating a domestic water source, so that the waste of the heat of the smoke is avoided.
Among the prior art, when heating domestic water through the flue gas heat, mostly will discharge fume the pipe and pass from the water tank is inside, can carry out the heat transfer with the inside water of water tank among the smoke discharging process, this kind of flue gas waste heat recovery mode is comparatively traditional, and the flue gas can't stop sufficient time in the intraduct of discharging fume, leads to the unable and water abundant heat transfer of flue gas waste heat, leads to the flue gas waste heat recovery effect relatively poor.
Disclosure of Invention
In view of the defects in the prior art, an embodiment of the present invention provides a flue gas waste heat recovery device.
In order to solve the technical problems, the invention provides the following technical scheme:
a flue gas waste heat recovery device, which comprises a water tank, a smoke exhaust pipe, an elastic connecting piece, an air blocking component, a first driving component, a second driving component, a sliding plate and a sealing component,
the smoke exhaust pipe is arranged in the water tank in a penetrating way,
the gas blocking component is movably arranged at one end of the smoke exhaust pipe and is used for blocking smoke in the smoke exhaust pipe,
the sliding plate is movably arranged inside the smoke exhaust pipe, the sliding plate is connected with the gas blocking component through the elastic connecting piece, the sliding plate is provided with a through hole,
the sealing component is movably arranged on one side of the sliding plate far away from the air plugging component and is used for plugging the through hole,
the first driving assembly and the second driving assembly are arranged in the smoke exhaust pipe,
when the sliding plate moves to a certain position towards the direction of the air blocking component, the first driving component is used for driving the sealing component to move so as to remove the blocking state of the through hole,
when the sliding plate moves to a certain position in the direction away from the air plugging component, the second driving component is used for driving the sealing component to move reversely so as to plug the through hole again.
As a further improvement scheme of the invention: the air blocking component comprises a pressure plate and a sealing plug plate,
the sealing plug plate is fixedly arranged on one side of the pressing plate, the sealing plug plate extends to the inside of the smoke exhaust pipe and passes through the elastic connecting piece and the sliding plate, a guide rod is fixedly arranged on the outer wall of the water tank, and one end of the guide rod, which is far away from the water tank, penetrates through the pressing plate and is fixedly provided with a limiting block.
As a further improvement scheme of the invention: the sealing assembly comprises a sealing plate, a polish rod and a fixed seat,
the sealing plate is movably attached to one side of the sliding plate far away from the sealing plug plate, the fixed seat is fixedly arranged on one side of the sliding plate far away from the sealing plug plate, one end of the polished rod is fixedly connected with the fixed seat, the other end of the polished rod extends into the sealing plate and is in telescopic fit with the sealing plate,
the first driving assembly comprises a first magnet and a second magnet, the first magnet is embedded on the inner wall of the smoke exhaust pipe, the second magnet is fixedly arranged at one end, far away from the fixed seat, of the sealing plate, and the first magnet and the second magnet repel each other.
As a further improvement of the invention: the second drive assembly includes a third magnet and a fourth magnet,
the third magnet is fixedly arranged on one side, facing the fixed seat, of the sealing plate, the fourth magnet is fixedly arranged on one side, facing the sealing plate, of the fixed seat, the third magnet and the fourth magnet are attracted, and the sealing plate is connected with the fixed seat through an elastic supporting piece.
As a still further improvement of the invention: the elastic connecting piece and the elastic supporting piece are springs or metal elastic pieces.
As a still further improvement scheme of the invention: a water inlet is formed in one side of the water tank, and a drain pipe is connected to the side wall of the water tank.
As a still further improvement of the invention: the outer wall of the smoke exhaust pipe is fixedly provided with a plurality of heat conducting fins, and the heat conducting fins extend to the inside of the water tank.
Compared with the prior art, the invention has the beneficial effects that:
compared with the prior art, the smoke exhaust pipe provided by the embodiment of the invention has the advantages that the sliding plate moves along the inside of the smoke exhaust pipe in a reciprocating manner and is matched with the sealing assembly to move in a reciprocating manner, so that the retention time of smoke in the smoke exhaust pipe can be prolonged, the heat exchange effect between the smoke and a water body is improved, the waste heat recovery effect of the smoke is improved, and smoke attached to the inner wall of the smoke exhaust pipe can be scraped when the sliding plate moves along the inside of the smoke exhaust pipe, so that the problem of poor heat exchange effect with the water body due to the existence of the smoke on the inner wall of the smoke exhaust pipe is solved.
Drawings
FIG. 1 is a schematic structural diagram of a flue gas waste heat recovery device;
FIG. 2 is a schematic structural diagram of a sealing assembly in a flue gas waste heat recovery device;
FIG. 3 is an enlarged view of area A of FIG. 1;
in the figure: 10-a water tank, 101-a drain pipe, 102-a water inlet, 20-a smoke exhaust pipe, 201-a heat conducting fin, 30-an elastic connecting piece, 40-an air blocking component, 401-a guide rod, 402-a limiting block, 403-a pressing plate, 404-a sealing plug plate, 50-a first magnet, 60-a sliding plate, 601-a through hole, 70-a sealing component, 701-a sealing plate, 702-an elastic supporting piece, 703-a polish rod, 704-a fixing seat, 80-a second magnet, 90-a third magnet and 100-a fourth magnet.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, 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 functions throughout. The embodiments described below with reference to the drawings are illustrative only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Referring to fig. 1 and 3, this embodiment provides a flue gas waste heat recovery device, which includes a water tank 10, a smoke exhaust pipe 20, an elastic connecting member 30, an air blocking assembly 40, a first driving assembly, a second driving assembly, a sliding plate 60, and a sealing assembly 70, wherein the smoke exhaust pipe 20 penetrates through the water tank 10, the air blocking assembly 40 is movably disposed at one end of the smoke exhaust pipe 20 and is used for blocking flue gas in the smoke exhaust pipe 20, the sliding plate 60 is movably disposed in the smoke exhaust pipe 20, the sliding plate 60 is connected to the air blocking assembly 40 through the elastic connecting member 30, a through hole 601 is disposed on the sliding plate 60, the sealing assembly 70 is movably disposed at one side of the sliding plate 60 away from the air blocking assembly 40 and is used for blocking the through hole 601, the first driving assembly and the second driving assembly are disposed in the smoke exhaust pipe 20, when the sliding plate 60 moves to a certain position towards the air shutoff assembly 40, the first driving assembly is used for driving the sealing assembly 70 to move so as to relieve the shutoff state of the through hole 601, and when the sliding plate 60 moves to a certain position away from the air shutoff assembly 40, the second driving assembly is used for driving the sealing assembly 70 to move reversely so as to shutoff the through hole 601 again.
When smoke with high temperature enters the smoke exhaust pipe 20, the sliding plate 60 can be pushed to move towards the air blocking component 40, the sliding plate 60 drives the air blocking component 40 to synchronously move through the elastic connecting piece 30, so that the air blocking component 40 is removed from the end part of the smoke exhaust pipe 20, air in the smoke exhaust pipe 20 can be discharged from the end part of the smoke exhaust pipe 20, when the sliding plate 60 moves to a certain position, the first driving component drives the sealing component 70 to move along one side of the sliding plate 60 so as to contact the blocking state of the through hole 601, at the moment, the smoke entering the smoke exhaust pipe 20 can enter the other side of the sliding plate 60 through the through hole 601, and the air blocking component 40 reversely moves under the action of gravity so as to continuously block the end part of the smoke exhaust pipe 20, and simultaneously the sliding plate 60 reversely moves along the inside of the smoke exhaust pipe 20 under the resetting action of the elastic connecting piece 30, the flue gas enters between the gas blocking assembly 40 and the sliding plate 60, and heat in the flue gas can exchange heat with the water body in the water tank 10 through the pipe wall of the smoke exhaust pipe 20, so that the water body is heated, and the recycling of the waste heat of the flue gas is realized; when the sliding plate 60 moves reversely to a certain position, the second driving assembly drives the sealing assembly 70 to move reversely along one side of the sliding plate 60 to re-block the through hole 601, at this time, along with the continuous introduction of the flue gas, the sliding plate 60 can be pushed again to move towards the gas blocking assembly 40 along the inside of the smoke exhaust pipe 20, so as to drive the gas blocking assembly 40 to be removed from the end part of the smoke exhaust pipe 20 through the elastic connecting piece 30, and at this time, the heat-exchanged flue gas between the gas blocking assembly 40 and the sliding plate 60 can be discharged from the end part of the smoke exhaust pipe 20; so, through the inside reciprocating motion of slide 60 along the pipe 20 of discharging fume, the reciprocating motion of cooperation seal assembly 70 can prolong the flue gas and at the inside dwell time of the pipe 20 of discharging fume to improve the heat transfer effect between flue gas and the water, improve the flue gas waste heat recovery effect.
Referring to fig. 1, in an embodiment, the air blocking assembly 40 includes a pressing plate 403 and a sealing plug plate 404, the sealing plug plate 404 is fixedly disposed on one side of the pressing plate 403, the sealing plug plate 404 extends into the smoke exhaust pipe 20 and is connected to the sliding plate 60 through the elastic connection member 30, a guide rod 401 is fixedly disposed on an outer wall of the water tank 10, and one end of the guide rod 401, which is far away from the water tank 10, penetrates through the pressing plate 403 and is fixedly disposed with a limit block 402.
When the smoke pushes the sliding plate 60 to move along the inside of the smoke discharging pipe 20, the elastic connection member 30 drives the sealing plug plate 404 and the pressing plate 403 to move, the sealing plug plate 404 is removed from the end of the smoke discharging pipe 20, the pressing plate 403 slides along the guiding rod 401 until abutting against one side of the limiting block 402, and at this time, the air or smoke between the sliding plate 60 and the sealing plug plate 404 can be discharged from one end of the smoke discharging pipe 20.
Referring to fig. 1, 2 and 3, in an embodiment, the sealing assembly 70 includes a sealing plate 701, a polish rod 703 and a fixing seat 704, the sealing plate 701 is movably attached to a side of the sliding plate 60 away from the sealing plug 404, the fixing seat 704 is fixedly disposed on a side of the sliding plate 60 away from the sealing plug 404, one end of the polish rod 703 is fixedly connected to the fixing seat 704, and the other end of the polish rod 703 extends into the sealing plate 701 and is telescopically engaged with the sealing plate 701, the first driving assembly includes a first magnet 50 and a second magnet 80, the first magnet 50 is embedded on an inner wall of the smoke exhaust pipe 20, the second magnet 80 is fixedly disposed on an end of the sealing plate 701 away from the fixing seat 704, and the first magnet 50 and the second magnet 80 repel each other.
When the flue gas enters the smoke exhaust pipe 20, the sealing plate 701 is attached to the side wall of the sliding plate 60 and plugs the through hole 601, so that the flue gas can push the sliding plate 60 to move reversely towards the sealing plug plate 404, when the slide plate 60 is moved to a certain position, the second magnet 80 corresponds to the first magnet 50, through the repulsion between the second magnet 80 and the first magnet 50, the sealing plate 701 is driven to move toward the fixing seat 704, thereby unblocking the through hole 601, and the smoke can enter the area between the sliding plate 60 and the sealing plug plate 404 through the through hole 601, that is, the pushing action of the subsequent smoke disappears, the pressing plate 403 and the sealing plug plate 404 move reversely under the action of gravity and the elastic connecting piece 30, the sealing plug plate 404 enters the smoke exhaust pipe 20 again, the end of the smoke exhaust pipe 20 is continuously plugged, and the sliding plate 60 moves towards the direction far away from the sealing plug plate 404 along the inside of the smoke exhaust pipe 20.
Referring to fig. 2 and 3, in an embodiment, the second driving assembly includes a third magnet 90 and a fourth magnet 100, the third magnet 90 is fixedly disposed on a side of the sealing plate 701 facing the fixing seat 704, the fourth magnet 100 is fixedly disposed on a side of the fixing seat 704 facing the sealing plate 701, the third magnet 90 and the fourth magnet 100 attract each other, and the sealing plate 701 and the fixing seat 704 are further connected by an elastic supporting member 702.
When the first magnet 50 and the second magnet 80 repel each other to drive the sealing plate 701 to move toward the fixing seat 704, the elastic supporting member 702 is compressed, meanwhile, the third magnet 90 and the fourth magnet 100 attract each other to overcome the propping force of the elastic propping member 702, so that when the sliding plate 60 moves away from the sealing plug plate 404, the sealing plate 701 can slowly move away from the fixed seat 704, so that the subsequent smoke can smoothly pass through the through hole 601 and enter the area between the sliding plate 60 and the sealing plug plate 404 until the sliding plate 60 moves to a certain position far away from the sealing plug plate 404, the sealing plate 701 completely seals the through hole 601, and at the moment, the subsequent flue gas pushes the sliding plate 60 to move towards the direction of the sealing plug plate 404 again, so that the sliding plate 60 can be ensured to move back and forth in the smoke exhaust pipe 20, meanwhile, the detention time of the flue gas in the smoke exhaust pipe 20 is prolonged, and the recovery effect of the flue gas waste heat is improved.
In one embodiment, the elastic connecting member 30 and the elastic supporting member 702 may be a spring, or may be a metal spring sheet, which is not limited herein.
Referring to fig. 1, in an embodiment, a water inlet 102 is formed in one side of the water tank 10, a water discharge pipe 101 is connected to a side wall of the water tank 10, a plurality of heat conduction fins 201 are fixedly arranged on an outer wall of the smoke discharge pipe 20, the heat conduction fins 201 extend into the water tank 10, a water source can be introduced into the water tank 10 through the arrangement of the water inlet 102, after heat exchange between the water source and smoke is completed, the heated water source can be discharged and utilized through the water discharge pipe 101, and through the arrangement of the heat conduction fins 201, a contact area between a water body and the smoke discharge pipe 20 can be increased, so that a heat exchange effect is improved.
Compared with the prior art, the embodiment of the invention has the advantages that the sliding plate 60 moves back and forth along the inside of the smoke exhaust pipe 20 and the sealing component 70 moves back and forth, so that the residence time of smoke in the smoke exhaust pipe 20 can be prolonged, the heat exchange effect between the smoke and water is improved, the recovery effect of waste heat of the smoke is improved, and the smoke attached to the inner wall of the smoke exhaust pipe 20 can be scraped when the sliding plate 60 moves along the inside of the smoke exhaust pipe 20, so that the problem of poor heat exchange effect with the water due to the existence of the smoke on the inner wall of the smoke exhaust pipe 20 is solved.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A flue gas waste heat recovery device is characterized by comprising a water tank, a smoke exhaust pipe, an elastic connecting piece, an air blocking component, a first driving component, a second driving component, a sliding plate and a sealing component,
the smoke exhaust pipe is arranged in the water tank in a penetrating way,
the gas blocking component is movably arranged at one end of the smoke exhaust pipe and is used for blocking smoke in the smoke exhaust pipe,
the sliding plate is movably arranged in the smoke exhaust pipe, the sliding plate is connected with the air blocking component through the elastic connecting piece, the sliding plate is provided with a through hole,
the sealing component is movably arranged on one side of the sliding plate far away from the air plugging component and is used for plugging the through hole,
the first driving assembly and the second driving assembly are arranged in the smoke exhaust pipe,
when the sliding plate moves to a certain position towards the air plugging component, the first driving component is used for driving the sealing component to move so as to remove the plugging state of the through hole,
when the sliding plate moves to a certain position in the direction away from the air plugging component, the second driving component is used for driving the sealing component to move reversely so as to plug the through hole again.
2. The flue gas waste heat recovery device according to claim 1, wherein the air blocking component comprises a pressure plate and a sealing plug plate,
the sealing plug plate is fixedly arranged on one side of the pressing plate, the sealing plug plate extends into the smoke exhaust pipe and is connected with the sliding plate through the elastic connecting piece, the outer wall of the water tank is fixedly provided with a guide rod, and the end, far away from the water tank, of the guide rod penetrates through the pressing plate and is fixedly provided with a limiting block.
3. The flue gas waste heat recovery device of claim 2, wherein the sealing assembly comprises a sealing plate, a polish rod and a fixing seat,
the sealing plate is movably attached to one side of the sliding plate far away from the sealing plug plate, the fixed seat is fixedly arranged on one side of the sliding plate far away from the sealing plug plate, one end of the polished rod is fixedly connected with the fixed seat, the other end of the polished rod extends into the sealing plate and is in telescopic fit with the sealing plate,
the first driving assembly comprises a first magnet and a second magnet, the first magnet is embedded on the inner wall of the smoke exhaust pipe, the second magnet is fixedly arranged at one end, far away from the fixed seat, of the sealing plate, and the first magnet and the second magnet repel each other.
4. The flue gas waste heat recovery device according to claim 3, wherein the second driving assembly comprises a third magnet and a fourth magnet,
the third magnet is fixedly arranged on one side, facing the fixed seat, of the sealing plate, the fourth magnet is fixedly arranged on one side, facing the sealing plate, of the fixed seat, the third magnet and the fourth magnet are attracted, and the sealing plate is connected with the fixed seat through an elastic supporting piece.
5. The flue gas waste heat recovery device according to claim 4, wherein the elastic connecting piece and the elastic supporting piece are springs or metal elastic pieces.
6. The flue gas waste heat recovery device according to claim 1, wherein a water inlet is formed in one side of the water tank, and a drain pipe is connected to the side wall of the water tank.
7. The flue gas waste heat recovery device according to claim 1, wherein a plurality of heat conducting fins are fixedly arranged on the outer wall of the smoke exhaust pipe, and the heat conducting fins extend into the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327829.7A CN114777148A (en) | 2022-03-31 | 2022-03-31 | Flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327829.7A CN114777148A (en) | 2022-03-31 | 2022-03-31 | Flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114777148A true CN114777148A (en) | 2022-07-22 |
Family
ID=82427936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210327829.7A Pending CN114777148A (en) | 2022-03-31 | 2022-03-31 | Flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114777148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117946769A (en) * | 2024-03-20 | 2024-04-30 | 上海电气集团国控环球工程有限公司 | Pure oxygen gasification furnace with heat recycling function |
-
2022
- 2022-03-31 CN CN202210327829.7A patent/CN114777148A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117946769A (en) * | 2024-03-20 | 2024-04-30 | 上海电气集团国控环球工程有限公司 | Pure oxygen gasification furnace with heat recycling function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114777148A (en) | Flue gas waste heat recovery device | |
| CN110906354A (en) | Energy-concerving and environment-protective boiler waste heat recovery device | |
| CN207886823U (en) | A kind of waste gas treatment equipment with dust-removal and desulfurizing function applied to coal-burning power plant | |
| CN219036658U (en) | Catalytic combustion stove with flue gas filtering capability | |
| CN205332145U (en) | Heat dissipation device for LED lamps | |
| CN212902840U (en) | Ash cleaning type heat exchanger | |
| CN115379686A (en) | Communication base station dust keeper | |
| CN208126313U (en) | A kind of self-sealing oil-returning structure | |
| CN2108210U (en) | Plate type gate valve for cinder, particle material | |
| CN108304054B (en) | Self-sealing oil return structure | |
| CN112756345A (en) | Robot for cleaning interior of oil pipe of kitchen smoke exhauster | |
| CN216408922U (en) | Anti-coking waste heat boiler | |
| CN219367659U (en) | Telescopic soot blower of boiler water wall | |
| CN210033910U (en) | Microwave grate fan fixing device convenient to peg graft | |
| CN220567951U (en) | Heat exchanger for efficient waste heat recovery and utilization of flue gas | |
| CN215345665U (en) | High-efficiency network information transmitter | |
| CN210153255U (en) | Large-diameter gate valve for high-temperature paste | |
| CN115789377B (en) | Quick butt joint for pipeline | |
| CN109028584B (en) | Boiler waste heat collector | |
| CN210004438U (en) | Hot air isolation with dust collecting and cleaning functions | |
| CN216346365U (en) | Boiler negative pressure dust absorption economizer | |
| CN205332141U (en) | Light emitting diode (LED) lamp heat radiator | |
| CN217083395U (en) | Self-cleaning radiating fin radiator | |
| CN214468927U (en) | Prevent mistake and touch formula living beings heating furnace controller | |
| CN220229562U (en) | Environment-friendly coal-fired hot-air furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |