CN207080975U - A kind of steam boiler - Google Patents
A kind of steam boiler Download PDFInfo
- Publication number
- CN207080975U CN207080975U CN201721050293.XU CN201721050293U CN207080975U CN 207080975 U CN207080975 U CN 207080975U CN 201721050293 U CN201721050293 U CN 201721050293U CN 207080975 U CN207080975 U CN 207080975U
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- Prior art keywords
- pipe
- water
- water tank
- outlet
- housing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 239000000779 smoke Substances 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 27
- 239000003500 flue dust Substances 0.000 claims abstract description 13
- 239000012774 insulation material Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000009977 dual effect Effects 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 235000020097 white wine Nutrition 0.000 description 1
- 235000014101 wine Nutrition 0.000 description 1
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model provides a kind of steam boiler, including boiler body and preheating can, and combustion chamber and water stove are provided with boiler body, water stove is located above combustion chamber, combustion chamber is provided with the first pipe, and water stove is provided with the first water inlet pipe and steam (vapor) outlet, and steam (vapor) outlet is located at the upper end of water stove.Preheating can includes housing, and shell one end connects with the first pipe, and the housing other end is provided with the second pipe.Water tank is provided with housing, the exterior space of water tank and the inner space of housing form toroidal cavity；One end is provided with the second water inlet pipe below water tank, and the second water inlet pipe is provided with water pump；The other end is provided with outlet pipe above water tank, and outlet pipe connects with the first water inlet pipe.There is spiral smoke pipe in water tank, spiral smoke pipe connects with cavity, and the import of spiral smoke pipe is in water tank in the side wall of first pipe one end, and the outlet of smoke pipe is in the side wall of the water tank other end.The dual heat exchange of hot cigarette and cold water can be achieved, fully recycle flue dust heat, energy-conserving and environment-protective, reduce production cost.
Description
Technical field
It the utility model is related to boiler plant field, more particularly to a kind of steam boiler.
Background technology
Steam boiler is a kind of equipment of energy conversion, by the form such as the chemical energy of fuel, electric energy in boiler, by boiler
Conversion, steam of the output with certain heat energy.In the brewing process of white wine, steam boiler is main energy consuming equipment,
And one of essential equipment is distilled in wine brewing.
What is more commonly used in liquor industry is vertical steam boiler, including the body of heater with internal cavities, is provided with body of heater
Combustion chamber, combustion chamber top are provided with water stove, and water stove is provided with water inlet and steam (vapor) outlet, and combustion chamber is connected with pipe.Fuel
Burn in a combustion chamber, discharge heat, water stove reclaimed water is heated, produce vapor, and flue gas is from going out caused by burning
Smoke pipe is discharged in air.
Heat caused by fuel combustion in boiler, it is most of to transmit feedwater stove, vapor is produced to be heated to water, so
And fuel produces the very high flue gas of temperature during burning and use, quite a few heat disappears with the discharge of flue gas
Dissipate, cause the waste of the energy, reduce the utilization rate of fuel, do not utilize energy-saving, be unfavorable for the raising of productivity effect, and it is right
Environment causes certain pollution.
Utility model content
This application provides a kind of steam boiler, to solve existing steam boiler in use, quite a few will be carried
The problem of fume emission of heat, causes the waste of the energy, reduces fuel availability, and production cost is high.
A kind of steam boiler, including boiler body and preheating can, wherein,
Combustion chamber and water stove are provided with the boiler body, the water stove is located above the combustion chamber, the combustion chamber
The first pipe is provided with, the water stove is provided with the first water inlet pipe and steam (vapor) outlet, and the steam (vapor) outlet is located at the water stove
Upper end；
The preheating can includes housing, and the shell one end is connected with first pipe, and the housing other end is set
There is the second pipe；
Be provided with water tank in the housing, it is empty that the inner space of the exterior space of the water tank and the housing forms annular
Chamber；One end is provided with the second water inlet pipe below the water tank, and second water inlet pipe is provided with water pump；The other end above the water tank
Provided with outlet pipe, the outlet pipe connects with first water inlet pipe；
Spiral smoke pipe is provided with the water tank, the spiral smoke pipe connects with the cavity, and the spiral smoke pipe enters cigarette
Mouthful water tank is arranged in the side wall of described first pipe one end, it is another that the outlet flue of the spiral smoke pipe is arranged on water tank
In the side wall at end.
Optionally, the spiral smoke pipe is screw-type pipeline.
Optionally, the outlet pipe is provided with the first temperature sensor close to one end of preheating can, and the other end is provided with the first electricity
Magnet valve；
Second water inlet pipe is provided with second solenoid valve, the second solenoid valve be located at the water pump and the water tank it
Between.
Optionally, second pipe is provided with second temperature sensor.
Optionally, control device, the control device and the water pump, first temperature are additionally provided with the boiler body
Spend sensor, the second temperature sensor, first magnetic valve, the second solenoid valve connection.
Optionally, the preheating can is cylindrical shape, and housing outer surface has multiple grooves, and inner surface is corresponding with the groove
Position there are multiple fins.
Optionally, it is additionally provided with soot processing device on second pipe.
Optionally, the housing is porous type insulation material.
The technical scheme that the application provides includes following advantageous effects：
A kind of steam boiler provided by the utility model, with existing steam boiler, the directly discharge of hot cigarette is compared, set
There is preheating can, the hot cigarette being passed through in preheating can realize dual heat exchange with cold water, so as to make full use of the energy of hot cigarette, to cold
Water is heated, and the hot water after preheating is passed through in boiler and used, and the energy in flue dust is recycled, and realizes section
Can be environmentally friendly, also improve the utilization rate of fuel；Hot water is added in boiler simultaneously, reduces and produces fuel quantity used in steam,
Advantageously reduce production cost.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the steam boiler that the utility model embodiment provides；
Fig. 2 is the flue structure schematic diagram for the steam boiler that the utility model embodiment provides；
Fig. 3 is the preheating can structural representation for the steam boiler that the utility model embodiment provides；
Fig. 4 is the preheating can axial section structural representation for the steam boiler that the utility model embodiment provides.
Description of reference numerals：1st, boiler body, 11, combustion chamber, the 111, first pipe, 12, water stove, the 121, first water inlet
Pipe, 122, steam (vapor) outlet, 2, preheating can, 21, housing, the 211, second pipe, 212, second temperature sensor, 213, groove,
214th, fin, 215, soot processing device, 22, water tank, 23, cavity, the 24, second water inlet pipe, 241, water pump, the 242, second electromagnetism
Valve, 25, outlet pipe, the 251, first temperature sensor, the 252, first magnetic valve, 26, spiral smoke pipe, 3, control device.
Embodiment
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Accompanying drawing 1 is refer to, the structural representation of the steam boiler provided the figure shows the present embodiment.
A kind of steam boiler provided by the utility model, including boiler body 1 and preheating can 2.
Combustion chamber 11 and water stove 12 are provided with boiler body 1, water stove 12 is located at the top of combustion chamber 11, by combustion chamber 11
Fuel combustion is added, the water in the energy transmission feedwater stove 12 of fuel heats water so as to produce water vapour, so that equipment makes
With.
The combustion chamber 11 is provided with the first pipe 111, is discharged for the flue dust after fuel combustion.Water stove 12 is provided with first
Water inlet pipe 121, water can be added in water stove 12 from the first water inlet pipe 121.Steam (vapor) outlet 122 is additionally provided with water stove 12, steam goes out
Water heating of the mouth 122 in the upper end of water stove 12, water stove 12, caused water vapour is passed through to be used from steam (vapor) outlet 122
In equipment.
Preheating can 2 includes housing 21, and the one end of housing 21 connects with the first pipe 111, the fuel combustion of combustion chamber 11 production
Raw flue dust, it is passed into by the first pipe 111 in housing 21.The other end of housing 21 is provided with the second pipe 211, is preheating
In tank 2, hot cigarette carries out the flue dust after sufficient heat exchange with cold water, can be discharged by the second pipe 211.
Water tank 22 is provided with the housing 21, the exterior space of the water tank 22 forms toroidal cavity with the inner space of housing 21
23, the flue gas come in from the first pipe 111 can be passed into the cavity 23.The lower section one end of water tank 22 is provided with the second water inlet pipe
24, second water inlet pipe 24 is provided with water pump 241, transports into water tank 22 cold water by water pump 241, is flowed in water tank 22
Heat exchange can occur for the hot cigarette flowed in water and the external cavity 23 of water tank 22, realize that hot cigarette is reheated with the one of cold water and exchange.
The top other end of water tank 22 is provided with outlet pipe 25, and the outlet pipe 25 connects with the first water inlet pipe 121, will pass through pre-
The water discharge that hot tank 2 preheats, and be passed through in steam boiler, the water containing certain heat heats in steam boiler produces steam institute
The fuel needed is reduced, and so as to reach the purpose of energy-conservation, reduces the production cost of enterprise.Cigarette after fuel combustion is recycled simultaneously
The heat of dirt, improve the utilization rate of fuel.
Spiral smoke pipe 26 is provided with water tank 22, the spiral smoke pipe 26 is connected with cavity 23, and the smoke inlet of spiral smoke pipe 26 is set
Put in water tank 22 in the side wall of the one end of the first pipe 111, the outlet flue of spiral smoke pipe 26 is arranged on the other end of water tank 22
Side wall on.The inside of spiral smoke pipe 26 connects with cavity 23, from the hot cigarette of the first pipe 111 discharge, is entering cavity 23
While, it can also enter in spiral smoke pipe 26, realize the double heat exchange of the hot cigarette and cold water in water tank 22 in spiral smoke pipe 26, it is double
Exchange heat again and sufficient heating has been carried out to cold water, effectively raise the rate of recovery to energy in hot cigarette, improve the utilization of fuel
Rate.And the smoke pipe that spiral spirals can be effectively increased the time that hot cigarette flows in smoke pipe, increase and the contact area of water and contact
Time, heat exchange efficiency is improved, increase the rate of recovery of heat.
Cold water is poured into water tank 22 by water pump 241, in boiler fuel combustion produce substantial amounts of hot cigarette, hot cigarette passes through the
One pipe 111 is flowed into preheating can 2, is flowed in the cavity 23 and spiral smoke pipe 26 of preheating can 2, the cold water in water tank 22 can
Contacted with the hot cigarette in the cavity 23 of outside, heat exchange occurs, can also be contacted with the spiral smoke pipe 26 in water tank 22, heat occurs
Exchange.The water that dual heat exchange is carried out with hot cigarette is heated by the water inlet pipe 121 of outlet pipe 25 and first inflow boiler, and
Flue dust after heat exchange is discharged by the second pipe 211.
Accompanying drawing 2 is refer to, the flue structure schematic diagram of the steam boiler provided the figure shows the present embodiment.
Optionally, the smoke pipe is screw-type pipeline, the flowing velocity of hot cigarette and cold water can be effectively reduced, so as to increase hot cigarette
With the time of contact of cold water.Containing the rough surfaces externally and internally of threaded tube, it can also increase the contact area of hot cigarette and cold water, carry
High heat exchange efficiency between the two, the recovering effect to energy in hot cigarette is lifted, reaches the purpose of energy-conservation.
Optionally, outlet pipe 25 is provided with the first temperature sensor 251 close to one end of preheating can 2, to being arranged from preheating can 2
The temperature of the water gone out is detected, and to prevent the relatively low water of temperature from entering boiler, causes reheating to need asking for more multiple-energy-source
Topic, improve production cost.The other end is provided with the first magnetic valve 252, and outlet pipe 25 connects with the first water inlet pipe 121, the first electromagnetism
Control is adjusted in the flow, flow velocity etc. that valve 252 can enter boiler to water after preheating, avoids once intaking too much, or input is big
The relatively low water of amount temperature, so as to cause the increase of required fuel, cause the waste of the energy and the increase of enterprise's production cost；
Second water inlet pipe 24 is provided with second solenoid valve 242, second solenoid valve 242 between water pump 241 and water tank 22,
The adjustable amount, flow velocity etc. for entering cold water in water tank 22 of second solenoid valve 242, avoids too many into water, and flow velocity is too big, heat exchange effect
Fruit is poor, it is impossible to makes full use of energy in hot cigarette, causes the loss of heat, utilization rate is low.The relatively low water of temperature enters pot simultaneously
Stove, it is unfavorable for water vapour generation, increases production cost.
Optionally, the second pipe 211 is provided with second temperature sensor 212, can be to discharging in the second pipe 211
The temperature of flue dust is detected.
Optionally, control device 3 is additionally provided with the boiler body 1, the control device 3 and water pump 241, the first TEMP
Device 251, second temperature sensor 212, the first magnetic valve 252, second solenoid valve 242 are connected, and control device 3 is received by first
The temperature signal that temperature sensor 251 and second temperature sensor 212 are sent, according to the height of temperature, passes through the first magnetic valve
252 and second solenoid valve 242 control preheating can 2 in water and the size of flow, realize the control to the reclaimed water pre-heat effect of preheating can 2
System.
In the case of possible one kind, the detection temperature of the first temperature sensor 251, control device 3 is transmitted to, when temperature is higher
When, show that the pre-heat effect of preheating can 2 is poor, then the first magnetic valve 252 is closed in control, prevents a large amount of cold water from going successively to boiler
In, the temperature of boiler reclaimed water is reduced, increases the utilization of fuel.Second solenoid valve 242 is simultaneously closed off, keeps water in water tank 22,
Increase quantitative water with flowing the heat exchanger time of hot cigarette, so as to strengthen pre-heat effect.Treat that the first temperature sensor 251 detects temperature
When degree signal is higher, the first magnetic valve 252 is opened, and second solenoid valve 242 adds the water of heating in boiler.
When the first temperature sensor 251 detects that the coolant-temperature gage of output is relatively low, and the cigarette that second temperature sensor 212 detects
Temperature it is higher when, show not make use of the energy in hot cigarette sufficiently, control device 3 can control second solenoid valve 242 to increase
The flow of cold water in preheating cabinet, the heat in abundant exchanged heat cigarette, improves the heat recovery rate to flue dust, reaches and saves the energy and reduce
The purpose of production cost.
Accompanying drawing 3 and accompanying drawing 4 are refer to, the structure for respectively illustrating the preheating can 2 of the steam boiler of the present embodiment offer is shown
It is intended to the structural representation with the axial section of preheating can 2.
Optionally, the preheating can 2 is cylindrical shape, and the outer surface of housing 21 has multiple grooves 213, inner surface and groove 213
Corresponding position has multiple fins 214, the inner surface of preheating can 2 is formed rough surface.What the present embodiment provided
Steam boiler, it preheats tank shell and is provided with multiple parallel grooves 213, inner surface and groove 213 along perpendicular to the direction of axis
Corresponding position is provided with multiple parallel fins 214.When rough inner surface adds flowing of the hot cigarette in cavity 23
Between, time and the area of hot cigarette and cold water heat exchange are enhanced, effectively increases the utilization rate to hot cigarette energy.
Optionally, soot processing device 215 is additionally provided with the second pipe 211, after carrying out heat exchange in preheating can 2
Flue dust handled, reduce its pollution to environment.The type of the soot processing device 215 can be according to boiler combustion fuel-based
Type selects, such as coal-burning boiler, then dirt pocket may be selected and light-catalyzed reaction room is handled flue dust.
Optionally, the housing 21 is porous type insulation material, can be protected to playing a part of insulation by the hot cigarette of cavity 23
The heat of the most of hot cigarette of card is used for the heat exchange with cold water, so as to improve pre-heat effect.
A kind of steam boiler provided by the utility model, it is with existing steam boiler, hot cigarette caused by combustion chamber is direct
Discharge is compared, and there is provided preheating can, hot cigarette is entered in preheating can, realizes the dual heat exchange of hot cigarette and cold water, so as to fully
Using the energy in flue dust, cold water is heated, and the hot water after preheating is passed through in boiler and used, to the energy in flue dust
Recycled, realize energy-conserving and environment-protective, also improve the utilization rate of fuel；Hot water is added in boiler simultaneously, reduces production
Fuel quantity used in raw steam, advantageously reduces production cost.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation makes a distinction with another entity or operation, and not necessarily requires or imply these entities or exist between operating any
This actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive
Property includes, so that article or equipment including a series of elements not only include those key elements, but also including not having
The other element being expressly recited, or also include for this process, method, article or the intrinsic key element of equipment.Do not having
There is the key element in the case of more limiting, limited by sentence "including a ...", it is not excluded that including the mistake of the key element
Other identical element in journey, method, article or equipment also be present.
Described above is only the embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.A variety of modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
It should be appreciated that the content that the application is not limited to be described above and is shown in the drawings, and can
To carry out various modifications and changes without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (8)
- A kind of 1. steam boiler, it is characterised in that including boiler body (1) and preheating can (2), wherein,Combustion chamber (11) and water stove (12) are provided with the boiler body (1), the water stove (12) is located at the combustion chamber (11) Top, the combustion chamber (11) are provided with the first pipe (111), the water stove (12) be provided with the first water inlet pipe (121) and Steam (vapor) outlet (122), the steam (vapor) outlet (122) are located at the upper end of the water stove (12)；The preheating can (2) includes housing (21), and described housing (21) one end connects with first pipe (111), described Housing (21) other end is provided with the second pipe (211)；Water tank (22), the exterior space of the water tank (22) and the inner space of the housing (21) are provided with the housing (21) Form toroidal cavity (23)；One end is provided with the second water inlet pipe (24) below the water tank (22), on second water inlet pipe (24) Provided with water pump (241)；The other end is provided with outlet pipe (25) above the water tank (22), and the outlet pipe (25) is entered with described first Water pipe (121) connects；Spiral smoke pipe (26) is provided with the water tank (22), the spiral smoke pipe (26) connects with the cavity (23), the spiral shell The smoke inlet of rotation smoke pipe (26) is arranged on water tank (22) in the side wall of described first pipe (111) one end, the spiral The outlet flue of smoke pipe (26) is arranged in the side wall of water tank (22) other end.
- 2. steam boiler according to claim 1, it is characterised in that the spiral smoke pipe (26) is screw-type pipeline.
- 3. steam boiler according to claim 1, it is characterised in that the one of the close preheating can (2) of the outlet pipe (25) End is provided with the first temperature sensor (251), and the other end is provided with the first magnetic valve (252)；Second water inlet pipe (24) is provided with second solenoid valve (242), and the second solenoid valve (242) is located at the water pump (241) between the water tank (22).
- 4. steam boiler according to claim 3, it is characterised in that second pipe (211) is provided with the second temperature Spend sensor (212).
- 5. steam boiler according to claim 4, it is characterised in that be additionally provided with control device on the boiler body (1) (3), the control device and the water pump (241), first temperature sensor (251), the second temperature sensor (212), first magnetic valve (252), second solenoid valve (242) connection.
- 6. steam boiler according to claim 1, it is characterised in that the preheating can (2) is cylindrical shape, and housing (21) is outside Surface has multiple grooves (213), and inner surface position corresponding with the groove has multiple fins (214).
- 7. steam boiler according to claim 1, it is characterised in that be additionally provided with flue dust on second pipe (211) Processing unit (215).
- 8. steam boiler according to claim 1, it is characterised in that the housing (21) is porous type insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050293.XU CN207080975U (en) | 2017-08-22 | 2017-08-22 | A kind of steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050293.XU CN207080975U (en) | 2017-08-22 | 2017-08-22 | A kind of steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080975U true CN207080975U (en) | 2018-03-09 |
Family
ID=61420505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721050293.XU Expired - Fee Related CN207080975U (en) | 2017-08-22 | 2017-08-22 | A kind of steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854551A (en) * | 2018-06-12 | 2018-11-23 | 合肥丰洁生物科技有限公司 | A kind of high-efficiency plant extraction film concentrator |
| CN109556102A (en) * | 2018-12-29 | 2019-04-02 | 吴荣彪 | A kind of double steam boilers |
-
2017
- 2017-08-22 CN CN201721050293.XU patent/CN207080975U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854551A (en) * | 2018-06-12 | 2018-11-23 | 合肥丰洁生物科技有限公司 | A kind of high-efficiency plant extraction film concentrator |
| CN109556102A (en) * | 2018-12-29 | 2019-04-02 | 吴荣彪 | A kind of double steam boilers |
| CN109556102B (en) * | 2018-12-29 | 2024-04-09 | 吴荣彪 | Double-steam boiler |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 |