CN107559793A - Electricity, gas two-purpose environment-friendly and energy-saving furnace - Google Patents
Electricity, gas two-purpose environment-friendly and energy-saving furnace Download PDFInfo
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- CN107559793A CN107559793A CN201710639162.3A CN201710639162A CN107559793A CN 107559793 A CN107559793 A CN 107559793A CN 201710639162 A CN201710639162 A CN 201710639162A CN 107559793 A CN107559793 A CN 107559793A
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Abstract
The present invention provides a kind of electricity, gas two-purpose environment-friendly and energy-saving furnace, belongs to boiler technology field, including electric steam generator, gas steam generator, water inlet pipe, escape pipe, five magnetic valves, cabinet and controller；Electric steam generator includes heating cabinet, adding thermal resistance, electric steam main water box, electric steam deputy tank, electric steam liquid level gauge, electric steamdrum and electric steam backwater pipe；Gas steam generator includes gas combustion apparatus, main water box occurs for combustion gas, deputy tank occurs for combustion gas, liquid level gauge occurs for combustion gas, heating tube occurs for combustion gas, steamdrum occurs for combustion gas, return pipe and blower fan occur for combustion gas.The present invention is by setting electric steam generator, gas steam generator to be used to produce steam using different energy sources, controller is also set up to control electric steam generator, gas steam generator whether to intake by controlling magnetic valve, go out steam, can unrestricted choice different energy sources supply steam, can meet the needs of more location, covering is wider array of to use crowd.
Description
Technical field
The invention belongs to boiler technology field, and in particular to electricity, gas two-purpose environment-friendly and energy-saving furnace.
Background technology
The energy used in many steam boilers on the market is relatively simple now, for continually changing energy valency
Lattice and market reaction are more slow, and the energy prices of different regions are also different, cause the pin of the boiler using the single energy
It is smaller to sell scope, meanwhile, enterprise can be influenceed when the energy is not supplied temporarily using the steam boiler of the single energy
Normal operation.
The content of the invention
In order to provide a kind of steam boiler that can use various energy resources, combustible gas can be used to produce steam,
Electricity can be used to produce steam, avoid using and perplex during the single energy caused by single energy pause supply, the present invention is adopted
Technical scheme is：Electricity, gas two-purpose environment-friendly and energy-saving furnace, including electric steam generator, gas steam generator, water inlet pipe,
Escape pipe, five magnetic valves, cabinet and controller；The electric steam generator includes heating cabinet, adding thermal resistance, electric steam master
Water tank, electric steam deputy tank, electric steam liquid level gauge, electric steamdrum and electric steam backwater pipe；The adding thermal resistance is arranged on heating
In storehouse, the electric steam main water box is arranged on the heating cabinet；The electric steam deputy tank is arranged on the electric steam master
Water tank side, the top surface of the electric steam deputy tank are not higher than the top surface of the electric steam main water box；The electric steam liquid level gauge
It is arranged in the electric steam deputy tank, for detecting the water level of the electric steam generator；The electric steamdrum is arranged on institute
State on electric steam main water box, the electric steam main water box respectively with the heating cabinet, the electric steam deputy tank, the electricity
Steamdrum connects；The electric steam deputy tank is connected by the electric steam backwater pipe with the electric steamdrum；The combustion gas is steamed
Vapour generator includes gas combustion apparatus, main water box occurs for combustion gas, deputy tank occurs for combustion gas, liquid level gauge occurs for combustion gas, combustion gas hair
Steamdrum occurs for raw heating tube, combustion gas, return pipe and blower fan occur for combustion gas；The gas combustion apparatus is arranged on the combustion gas
Generation main water box bottom, flame is produced by combustion gas combustion gas generation main water box and combustion gas generation heating tube are added
Heat；The combustion gas occurs deputy tank and is arranged on the combustion gas generation main water box side, and the top surface of deputy tank occurs for the combustion gas not
Higher than the top surface that main water box occurs for the combustion gas；The combustion gas occurs liquid level gauge and is arranged in the combustion gas generation deputy tank, uses
In the water level for detecting the gas steam generator；The combustion gas occur heating tube through the combustion gas occur main water box and
Connected with the blower fan, the blower fan extracts the tail gas that burning gases in heating tube occur for the combustion gas out；The combustion gas is steamed
Drum is arranged on the combustion gas and occurred on main water box, the combustion gas occur main water box occur respectively with the combustion gas steamdrum,
Deputy tank connection occurs for the combustion gas, and the combustion gas occurs steamdrum and sent out by combustion gas generation return pipe with the steam
Raw deputy tank connection；The water inlet pipe connects with the electric steam generator, the gas steam generator respectively, it is described enter
Water pipe enters water manifold including water inlet manifold, inlet triplet for water and two, and the water inlet manifold is by the inlet triplet for water with entering described in two
Water manifold connects, and enters on water manifold to be respectively arranged with a magnetic valve described in two and is used to control the electric steam generator, institute
State the water inlet of gas steam generator；The escape pipe includes outlet house steward, outlet threeway and two outlet menifolds, the outlet
House steward is connected by the outlet threeway with the two outlet menifolds, the two outlet menifolds respectively with the electric steamdrum, institute
State combustion gas and steamdrum connection occurs, a magnetic valve is respectively arranged with the two outlet menifolds and is used to be turned on or off
The pipeline of the outlet menifold；By operation button, the electric steam liquid level gauge or the combustion gas liquid occurs for the controller
The signal of position meter feedback controls five magnetic valves, the adding thermal resistance and the blower fan work；Enter water manifold described in two
Magnetic valve on upper, the two outlet menifolds sets interlocking respectively, and one is provided with the supply air line of the gas combustion apparatus
The on-off switch of magnetic valve and the circuit of the adding thermal resistance sets interlocking, steams the electric steam generator and the combustion gas
There was only one among vapour generator to be operated；The electric steam generator, the heater box, five magnetic valves and institute
Controller is stated in the cabinet, the water inlet pipe and escape pipe are partially installed in the cabinet, the water inlet pipe
The cabinet is stretched out in the outlet side of water inlet end and the escape pipe, and the bottom of cabinet bulk offers passage.
The invention has the advantages that：
The present invention is by setting the electric steam generator, the gas steam generator to be used to produce using different energy sources
Steam, also set up the controller and control the electric steam generator, the combustion and steam to occur by controlling magnetic valve
Whether device intakes, goes out steam, can unrestricted choice different energy sources supply steam, can meet the needs of more location, covering is more
Wide use crowd, meanwhile, by setting the magnetic valve of interlocking, make the electric steam generator, the gas steam generator
It will not simultaneously be operated, avoid causing more being lost.
Brief description of the drawings
Fig. 1 is a kind of stereogram of better embodiment of the present invention.
Fig. 2 is stereogram when a kind of better embodiment of the present invention removes cabinet 6.
Fig. 3 is front view when a kind of better embodiment of the present invention removes cabinet 6.
Fig. 4 is the sectional view (Fig. 3 A-A directions) of gas steam generator.
Fig. 5 is the sectional view (Fig. 3 B-B directions) of electric steam generator.
Main element symbol description
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
The following examples can help those skilled in the art that the present invention is more fully understood, but cannot be with any
Mode limits the present invention.
Fig. 1-3 are referred to, in the preferred embodiment of the present invention, there is provided Yi Zhong electricity, gas two-purpose environment-friendly and energy-saving furnace, bag
Include electric steam generator 1, gas steam generator 2, water inlet pipe 3, escape pipe 4, five magnetic valves 5, cabinet 6 and controller
(figure does not represent)；
Fig. 4 is please referred to, the electric steam generator 1 includes heating cabinet 11, adding thermal resistance 12, electric steam main water box
13rd, electric steam deputy tank 14, electric steam liquid level gauge, electric steamdrum 15 and electric steam backwater pipe 16.The adding thermal resistance 12 is set
In heating cabinet 11, the electric steam main water box 13 is arranged on the heating cabinet 11.The electric steam deputy tank 14 is set
In the electric side of steam main water box 13, the top surface of the electric steam deputy tank 14 is not higher than the top of the electric steam main water box 13
Face.The electric steam liquid level gauge is arranged in the electric steam deputy tank 14, for detecting the water of the electric steam generator 1
Position.The electric steamdrum 15 is arranged on the electric steam main water box 13, and the electric steam main water box 13 adds with described respectively
Hot storehouse 11, the electric steam deputy tank 14, the electric steamdrum 15 connect.The electric steam deputy tank 14 is steamed by the electricity
Vapour return pipe 16 connects with the electric steamdrum 15.
Fig. 5 is referred to continuing with combining, the gas steam generator 2 includes gas combustion apparatus 21, main water occurs for combustion gas
Deputy tank 23 occurs for case 22, combustion gas, liquid level gauge occurs for combustion gas, heating tube 24 occurs for combustion gas, steamdrum 25, combustion gas occur for combustion gas
Generation return pipe 26 and blower fan 27.The gas combustion apparatus 2 is arranged on the combustion gas and the bottom of main water box 22 occurs, and passes through combustion
Gas generation flame is combusted to heat combustion gas generation main water box 22 and combustion gas generation heating tube 24；The combustion gas occurs secondary
Water tank 23 is arranged on the combustion gas and the side of main water box 22 occurs, and the top surface that deputy tank 23 occurs for the combustion gas is not higher than the combustion
The top surface of main water box 22 occurs for gas.The combustion gas occurs liquid level gauge and is arranged in the combustion gas generation deputy tank 23, for detecting
The water level of the gas steam generator 25.The combustion gas occur heating tube 24 through the combustion gas occur main water box 22 and
Connected with the blower fan 27, the blower fan 27 extracts the tail gas that burning gases in heating tube 24 occur for the combustion gas out.The combustion gas
Generation steamdrum 25 is arranged on the combustion gas and occurred on main water box 22, the combustion gas occur main water box 22 respectively with the combustion
Steamdrum 25 occurs for gas, the combustion gas occurs deputy tank 23 and connected, and the combustion gas occurs steamdrum 25 and occurred by the combustion gas
Return pipe 26 connects with the steam generation deputy tank 23.
The water inlet pipe 3 connects with the electric steam generator 1, the gas steam generator 1 respectively, the water inlet pipe
The water inlet that two magnetic valves 5 are used to control the electric steam generator 1, the gas steam generator 1 is provided with 3.In this reality
Apply among example, the water inlet pipe 3 includes water inlet manifold 31, inlet triplet for water 32 and two enters water manifold 33, and the water inlet manifold 31 is logical
Cross the inlet triplet for water 32 to connect with entering water manifold 33 described in two, enter on water manifold 33 to be respectively arranged with an electricity described in two
Magnet valve is used for the water inlet for controlling the electric steam generator 1, the gas steam generator 2, when the electric steam generator 1
Or during 2 preparation of gas steam generator, magnetic valve corresponding to opening is to the electric steam deputy tank 14 or combustion
Gas occurs deputy tank 23 and supplied water.
The escape pipe 4 includes outlet house steward 41, the outlet menifold 43 of outlet threeway 42 and two, and the outlet house steward 41 passes through
The outlet threeway 42 connects with the two outlet menifolds 43, the two outlet menifolds 43 respectively with the electric steamdrum 15, institute
State combustion gas generation steamdrum 25 to connect, magnetic valve 5 is respectively arranged with the two outlet menifolds 43 and is used to be turned on or off institute
State the pipeline of outlet menifold 43.When the electric steam generator 1 or the gas steam generator 2 work, steam is from institute
State outlet menifold 43 and enter the outlet house steward 41 by the outlet threeway, steam is outwardly provided.
Among the present embodiment, heating tube 24, which occurs, for the combustion gas includes some coiled pipes 241, some coiled pipes
The top surface of main water box 22 occurs with the combustion gas respectively for 241 both ends and bottom surface connects, and the gas steam generator 2 also wraps
Include gas collection portion 28；The gas collection portion 28 is hollow, and bottom is located at the combustion gas with some coiled pipes 241 and the top surface of main water box 22 occurs
One end connection, side wall connects with the blower fan 27, and steamdrum 25 occurs for the combustion gas and the gas collection portion 28 shares side
Wall, the steam that the combustion gas occurs in steamdrum can also be heated further by the waste heat of combustion tail gas；
The blower fan 27 is arranged in another side wall relative with combustion gas generation steamdrum 25；The electric steamdrum 15
Top is provided with electric backwater threeway 151, the electric backwater threeway 151 respectively with the electric steamdrum 15, the electric steam backwater
The outlet menifold 43 of pipe 16 and one connects；The combustion gas occurs the top-side of steamdrum 25 and is provided with combustion gas backwater threeway 251,
With the combustion gas steamdrum 251, the combustion and steam return pipe 16 and another occur for the combustion gas backwater threeway 251 respectively
Outlet menifold 43 connects.
The electric steam generator 1, the gas steam generator 2, five magnetic valves 5 and controller installation
In the cabinet 6, the water inlet pipe 3 and escape pipe 4 are partially installed in the cabinet 6, the water inlet end of the water inlet pipe 3
The cabinet 6 is stretched out with the outlet side of the escape pipe 4, the bottom of cabinet 6 offers passage, for ensureing burning
Oxygen supplies.
The letter of liquid level gauge feedback occurs by operation button, the electric steam liquid level gauge or the combustion gas for the controller
Number control five magnetic valve 5, the adding thermal resistance 12, the gas combustion apparatus and the blower fan 27 work, the behaviour
Making button can control the selection electric steam generator 1 or the gas steam generator 2 to be operated.Enter described in two
Magnetic valve 5 on water manifold 33, on the two outlet menifolds 43 sets interlocking, the supply of the gas combustion apparatus 21 respectively
The on-off switch that a magnetic valve and the circuit of the adding thermal resistance 12 are provided with pipeline sets interlocking, makes the electric steam hair
Only one is operated among raw device 1 and the gas steam generator 2, makes the electric steam generator 1 and the combustion gas
Steam generator 2 works when different, avoids because the two steam pressure differences of outlet menifold 43 cause the steam of a generator
Pour in down a chimney among another generator, increase energy loss
When the electric steam generator 1 works, open connected with the electric steam deputy tank 14 enter water manifold 33 with
And the magnetic valve on the outlet menifold 43 connected with the electric steamdrum 15, to the electric steam deputy tank 14, the electric steam
Main water box 13 and the heating cabinet 11 plus water, stop water inlet when liquid level reaches electric 14 top of steam deputy tank, it is described
Adding thermal resistance 12 is powered, and in the heating cabinet 11 water is heated, and water turns into steam through the electric steam master after being heated
Water tank 13 enters the electric steamdrum 15, then passes through and goes out described in the entrance of outlet menifold 43 connected with the electric steamdrum 15
Gas house steward 41；Steam can rise in the process of generation and in rising with dynamic water level, and water returns to described by electric steam backwater pipe 16
Electric steam deputy tank 14, then reenter the heating cabinet 11 and heated.
When the gas steam generator 2 works, open and enter water manifold with what combustion gas generation deputy tank 23 connected
The magnetic valve 5 on outlet menifold 43 connected on 33 and with combustion gas generation steamdrum 25, gives the combustion gas that secondary water occurs
Main water box 22 plus water occur for case 23, the combustion gas, are reached when liquid level when 23 top of deputy tank occurs for the combustion gas and stop water inlet,
The gas combustion apparatus 21 is lighted a fire, and the gas of burning the combustion gas occurs the bottom-heated of main water box 22, and described in process
Combustion gas occurs heating tube 24 and the water of combustion gas generation main water box 22 is heated, and water turns into after being heated described in steam warp
Steamdrum 25 occurs into the combustion gas, then enters by the outlet menifold 43 connected with combustion gas generation steamdrum 25
The outlet house steward 41；Steam can rise in the process of generation and in rising with dynamic water level, and by combustion gas return pipe 26 occurs for water
Return to the combustion gas and deputy tank 23 occurs, then reenter combustion gas generation main water box 22 and heated.
The present invention is by setting the electric steam generator 1, the gas steam generator 2 to be used to produce using different energy sources
Raw steam, also set up the controller and control the electric steam generator, the combustion and steam to send out by controlling magnetic valve
Whether raw device intakes, goes out steam, can unrestricted choice different energy sources supply steam, can meet the needs of more location, cover
It is wider array of to use crowd.
Claims (5)
1. electricity, gas two-purpose environment-friendly and energy-saving furnace, it is characterised in that：It is described electricity, gas two-purpose all-in-one include electric steam generator,
Gas steam generator, water inlet pipe, escape pipe, five magnetic valves, cabinet and controller；
The electric steam generator includes heating cabinet, adding thermal resistance, electric steam main water box, electric steam deputy tank, electric steam liquid level
Meter, electric steamdrum and electric steam backwater pipe；The adding thermal resistance is arranged in heating cabinet, and the electric steam main water box is arranged on institute
State on heating cabinet；The electric steam deputy tank is arranged on the electric steam main water box side, the top of the electric steam deputy tank
Face is not higher than the top surface of the electric steam main water box；The electric steam liquid level gauge is arranged in the electric steam deputy tank, is used for
Detect the water level of the electric steam generator；The electric steamdrum is arranged on the electric steam main water box, the electric steam
Main water box connects with the heating cabinet, the electric steam deputy tank, the electric steamdrum respectively；The electric steam deputy tank passes through
The electric steam backwater pipe connects with the electric steamdrum；
The gas steam generator includes gas combustion apparatus, main water box occurs for combustion gas, deputy tank occurs for combustion gas, combustion gas occurs
Heating tube occurs for liquid level gauge, combustion gas, steamdrum occurs for combustion gas, return pipe and blower fan occur for combustion gas；The gas combustion apparatus is set
Put and main water box bottom occurs in the combustion gas, producing flame by combustion gas the combustion gas occurs main water box and combustion gas hair
Raw heating tube heating；The combustion gas occurs deputy tank and is arranged on the combustion gas generation main water box side, and secondary water occurs for the combustion gas
The top surface of main water box occurs not higher than the combustion gas for the top surface of case；The combustion gas occurs liquid level gauge and is arranged on the combustion gas generation pair
On water tank, for detecting the water level of the gas steam generator；The combustion gas occurs heating tube and led through the combustion gas
Water tank and connected with the blower fan, the blower fan extracts the tail gas that burning gases in heating tube occur for the combustion gas out；The combustion
Gas occurs steamdrum and is arranged on the combustion gas generation main water box, and the combustion gas occurs main water box and occurred respectively with the combustion gas
Deputy tank connection occurs for steamdrum, the combustion gas, the combustion gas occur steamdrum by the combustion gas occur return pipe with it is described
Steam generation deputy tank connects；
The water inlet pipe connects with the electric steam generator, the gas steam generator respectively, the water inlet pipe include into
Supply mains, inlet triplet for water and two enter water manifold, and the water inlet manifold is connected by the inlet triplet for water with entering water manifold described in two,
Enter on water manifold to be respectively arranged with a magnetic valve described in two to be used to control the electric steam generator, combustion and steam hair
The water inlet of raw device；
The escape pipe includes outlet house steward, outlet threeway and two outlet menifolds, and the outlet house steward passes through the outlet threeway
Being connected with the two outlet menifolds, the two outlet menifolds occur steamdrum with the electric steamdrum, the combustion gas respectively and connected,
The pipeline that a magnetic valve is used to be turned on or off the outlet menifold is respectively arranged with the two outlet menifolds；
The signal control of liquid level gauge feedback occurs by operation button, the electric steam liquid level gauge or the combustion gas for the controller
Make five magnetic valve, the adding thermal resistance and the blower fan work；Enter described in two on water manifold, on the two outlet menifolds
Magnetic valve interlocking is set respectively, a magnetic valve and the adding thermal resistance are provided with the supply air line of the gas combustion apparatus
The on-off switch of circuit interlocking is set, make among the electric steam generator and the gas steam generator only one to enter
Row work；
The electric steam generator, the heater box, five magnetic valves and the controller are arranged in the cabinet, institute
State water inlet pipe and escape pipe is partially installed in the cabinet, the outlet side of the water inlet end of the water inlet pipe and the escape pipe is stretched
Go out the cabinet, the bottom of cabinet bulk offers passage.
2. electricity as claimed in claim 1, gas two-purpose environment-friendly and energy-saving furnace, it is characterised in that：Heating tube bag occurs for the combustion gas
Some coiled pipes are included, the top surface of main water box occurs with the combustion gas respectively for the both ends of some coiled pipes and bottom surface connects.
3. electricity as claimed in claim 2, gas two-purpose environment-friendly and energy-saving furnace, it is characterised in that：The gas steam generator is also
Including gas collection portion；The gas collection portion is hollow, and one end that bottom is located at combustion gas generation main water box top surface with some coiled pipes connects
Logical, side wall connects with the blower fan.
4. electricity as claimed in claim 3, gas two-purpose environment-friendly and energy-saving furnace, it is characterised in that：The combustion gas occur steamdrum with
The gas collection portion shares a side wall, and the blower fan is arranged in another side wall relative with combustion gas generation steamdrum.
5. electricity as claimed in claim 1, gas two-purpose environment-friendly and energy-saving furnace, it is characterised in that：Set at the top of the electric steamdrum
Have an electric backwater threeway, the electric backwater threeway respectively with the electric steamdrum, the electric steam backwater pipe and an outlet menifold
Connection；The combustion gas occurs steamdrum top-side and is provided with combustion gas backwater threeway, the combustion gas backwater threeway respectively with it is described
Steamdrum, the combustion and steam return pipe and the connection of another outlet menifold occur for combustion gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639162.3A CN107559793B (en) | 2017-07-31 | 2017-07-31 | Electric and gas two-purpose environment protection energy-saving stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639162.3A CN107559793B (en) | 2017-07-31 | 2017-07-31 | Electric and gas two-purpose environment protection energy-saving stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559793A true CN107559793A (en) | 2018-01-09 |
| CN107559793B CN107559793B (en) | 2023-04-28 |
Family
ID=60973876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710639162.3A Active CN107559793B (en) | 2017-07-31 | 2017-07-31 | Electric and gas two-purpose environment protection energy-saving stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559793B (en) |
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| US6305612B1 (en) * | 1996-06-03 | 2001-10-23 | Ferdinand K. Besik | Compact gas fired humidifier |
| CN101153706A (en) * | 2006-09-29 | 2008-04-02 | 李合献 | Electricity and fuel oil/gas dual-purpose energy-saving steam boiler |
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| CN103939874A (en) * | 2014-04-02 | 2014-07-23 | 深圳市卓益节能环保设备有限公司 | Fuel gas steam generator |
| CN204388026U (en) * | 2015-01-13 | 2015-06-10 | 扬州晨光特种设备有限公司 | Vertical multi source heating boiler |
| CN104713063A (en) * | 2015-02-16 | 2015-06-17 | 宁波格林美孚新材料科技有限公司 | Unit combined type steam generating device |
| CN204797552U (en) * | 2015-05-21 | 2015-11-25 | 成都市健平厨房设备有限公司 | Dual -purpose cabinet that evaporates of gas electricity |
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2017
- 2017-07-31 CN CN201710639162.3A patent/CN107559793B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305612B1 (en) * | 1996-06-03 | 2001-10-23 | Ferdinand K. Besik | Compact gas fired humidifier |
| JP2000074307A (en) * | 1998-08-27 | 2000-03-14 | Toyo Netsu Kogyo Kk | Manufacture of normal pressure superheated steam |
| CN101153706A (en) * | 2006-09-29 | 2008-04-02 | 李合献 | Electricity and fuel oil/gas dual-purpose energy-saving steam boiler |
| CN201209848Y (en) * | 2008-04-02 | 2009-03-18 | 中山市力创科技节能有限公司 | Steam generator |
| CN202057033U (en) * | 2011-04-14 | 2011-11-30 | 朱兴军 | Energy-saving steam water boiler |
| CN203052970U (en) * | 2012-12-11 | 2013-07-10 | 武汉爱信热能系统有限公司 | Dual-heat-source hot-water boiler |
| CN103939874A (en) * | 2014-04-02 | 2014-07-23 | 深圳市卓益节能环保设备有限公司 | Fuel gas steam generator |
| CN204388026U (en) * | 2015-01-13 | 2015-06-10 | 扬州晨光特种设备有限公司 | Vertical multi source heating boiler |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107559793B (en) | 2023-04-28 |
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