CN201355118Y - Atmosphere module gas fired boiler - Google Patents
Atmosphere module gas fired boiler Download PDFInfo
- Publication number
- CN201355118Y CN201355118Y CNU200920105831XU CN200920105831U CN201355118Y CN 201355118 Y CN201355118 Y CN 201355118Y CN U200920105831X U CNU200920105831X U CN U200920105831XU CN 200920105831 U CN200920105831 U CN 200920105831U CN 201355118 Y CN201355118 Y CN 201355118Y
- Authority
- CN
- China
- Prior art keywords
- gas
- burner
- boiler
- pressure
- heater
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an atmosphere module gas fired boiler which belongs to the technical field of heat supply and consists of a boiler body, a gas hood 14, a water path system for outputting heat power, a gas path system for providing gas, a burner and a monitoring system, wherein the water path system comprises a heat exchanger arranged above the burner; the atmosphere module gas fired boiler is characterized in that the monitoring system comprises a sensor for detecting the gas pressure, a sensor for detecting the temperature of the water path, a delay relay 18, an electromagnetic valve for controlling the connection and disconnection of the gas path, an ignition mechanism and a control module 4 connected with all components; the boiler body is a square cabinet structure, and the water inlet 7 and the water outlet 15 of the water path system are arranged above the boiler body. The atmosphere module gas fired boiler has higher safety performance, is provided with the electromagnetic valve of three-grade control gas path and two-grade ignition mechanism, has higher heat exchange efficiency, adopts a double-layer double-return scale pipe as a heat exchanger and is suitable for changing the volume through combination; and moreover, the special gas hood design not only can prevent down draft, but also can prevent over-large draft.
Description
Technical field
The utility model belongs to the heat supply process field, relates to the boiler that heating power is provided.
Background technology
Boiler in heating, to provide aspect the hot water be important equipment.The fuel of boiler mainly contains coal, oil, combustion gas, and at present gas fired-boiler is with its cleaning, efficiently more and more be used widely.The fuel that gas fired-boiler uses mainly contains natural gas, liquefied petroleum gas, coal gas, liquefied petroleum gaseous mixture.Gas fired-boiler adds media such as hot water by burning combustible gas provide heating power, hot water.Present gas fired-boiler is structurally quite ripe, mainly contain air supply system, combustion mechanism, water system, fume extractor, also has control system, wherein control system is playing an important role aspect safety, efficient, the automation: secure context has baroceptor, hydraulic pressure sensor, cooling-water temperature sensor, furnace temperature sensor as the normal travelling mechanism of monitoring boiler, and the magnetic valve on ignition mechanism, the gas circuit is as the controlling organization that ensures safe operation of the boiler; Efficient aspect is except improving measures such as insulation, heat exchanger effectiveness, and control system can be optimized burning according to time, the burning fire power of parameters such as air pressure, water temperature control burning; Control system can also be according to setting the work of controlling boiler automatically.
Though gas fired-boiler reaches its maturity, many places that can be perfect are still arranged at aspects such as safety, efficient, expansion applicable situations.Present boiler has only a magnetic valve to control the break-make of gas circuit mostly; The general independent use of boiler, underaction aspect the coupling of boiler capacity and use occasion.In addition, fume extractor is also very big to the influence of boiler work, and chimney has been lacked and caused down row easily, and chimney has grown that to be easy to generate draft excessive, increases heat loss, and these burnings to boiler all have a significant impact.
Summary of the invention
The purpose of this utility model is further to improve the safety coefficient of gas fired-boiler, and a kind of boiler that is fit to change by combination capacity is provided.
To achieve these goals, the utility model has been taked following technical scheme: air suspended type module gas fired-boiler, petticoat pipe 14 by the body of heater on pedestal 1, the pedestal 1, body of heater top, and the water circuit system of the output heating power that comprises heat exchanger in the body of heater, the air-channel system that combustion gas is provided, burner and monitoring system constitute, wherein water circuit system comprises the heat exchanger that is positioned at the burner top, and this boiler is characterised in that: described water circuit system communicates with atmosphere; Described monitoring system comprises the main solenoid valve of the sensor of gaseous-pressure in control module 4 and the connected detection air-channel system, the temperature sensor that detects the water circuit system temperature, time-delay relay 18, control gas path on-off and regulates voltage stabilizing magnetic valve 24, water temperature demonstration and adjustment control 16, the ignition mechanism of gas circuit pressure, manually water temperature is regulated controlling organization, gas leakage detects and controlling organization, and is provided with independently the thermobarometer 35 that is connected with pressure sensor with temperature sensor; Described body of heater is square cabinet body structure, and the water inlet 7 of water circuit system and delivery port 15 are positioned at the body of heater top.
Burner in this programme by burner base 1, the nozzle that is connected with the combustion gas gas circuit, be installed in the burner sheet on the burner base, little lighter structure is formed: the size according to body of heater is provided with several nozzles and burner sheet, a nozzle is to a burner sheet, and the every pair of nozzle and burner sheet be an adjustable gap at interval; Little lighter structure is positioned at burner sheet next door, is made of with the ignition mechanism that is connected with control module 4 tracheae that is connected with gas circuit.Described burner sheet is to be provided with the long tube that one to two one of arranging fuel gas hole shuts, the other end is open, and its cross section is streamlined.
The heat exchanger of the water circuit system in this programme is made of the bilevel pair of snakelike extended surface tube 28 of backhaul.
Petticoat pipe 14 in this programme is formed cover body by last chimney 11, upper conical-tube 10, slower conical tube 12, lower stack 13 successively, the anti-blast cap 9 of infundibulate is set in the cover body, prevents that blast cap 9 is arranged on cover body central authorities by gripper shoe 8.
Body of heater in this programme is made of top board 6, left side plate 2, back plate, front panel and the inner combustion chamber of outside, and wherein front panel is provided with display control panel, transparent electric prospection cover.
The sensor of the gaseous-pressure in the monitoring system in this programme comprises high-pressure gas pressure switch 22 and low-pressure fuel gas pressure switch 23, be separately positioned on the front and back of voltage stabilizing magnetic valve 24, and high-voltage switch gear is positioned at before the manually-operated gate 21, and low tension switch is positioned at after the little fiery wireway 33.High-pressure gas pressure switch 22 and low-pressure fuel gas pressure switch 23 are received control module, according to the keying of valve in the situation control air-channel system of pressure.
Have additional the voltage stabilizing strainer valve in the monitoring system in this programme, the voltage stabilizing strainer valve also is arranged in the air-channel system, can filter the impurity in the air-channel system, and the pressure reduction of adjustable gate both sides; Also the 24 usefulness voltage stabilizings of voltage stabilizing magnetic valve can be filtered magnetic valve and replace, can filter the impurity in the air-channel system equally.For the more situation of impurity, can on the fuel gas pipeline on voltage stabilizing strainer valve or voltage stabilizing filtration magnetic valve side, manhole be set.
Gas leakage in the monitoring system in this programme detects and controlling organization is made of the gas leakage probe 3 that is positioned at the body of heater both sides and the gas emergency cut-off valve 25 of connected control combustion gas gas path on-off.
The control module 4 of the monitoring system in this programme can adopt the S8610M combustion controller of HONEYWELL.
Compare with existing gas fired-boiler, the utlity model has following advantage:
1) safer: the magnetic valve and the two-stage ignition mechanism that are provided with three grades of control gas circuits;
2) heat exchanger effectiveness height, water capacity are little: heat exchanger adopts two-layer two backhaul extended surface tubes;
3) come the change capacity by combination, can realize modular control: square box structural design, and entery and delivery port is located at the top, the water pipe of convenient a plurality of boilers connects, and saves the space, makes the boiler can compact arrangement.
4) unique petticoat pipe design both can prevent down draught, can prevent that again draft is excessive, can also collect condensed water.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the heat exchanger structure schematic diagram in the utility model.
Fig. 3 is the schematic diagram of the cross section of the burning plate in the burner in the utility model.
Among the figure: 1, pedestal, 2, side plate, 3, the gas leakage probe, 4, control module, 5, power switch, 6, top board, 7, water inlet, 8, gripper shoe, 9, anti-blast cap, 10, upper conical-tube, 11, last chimney, 12, slower conical tube, 13, lower stack, 14, petticoat pipe, 15, delivery port, 16, water temperature shows and adjustment control 17, regulate button, 18, time-delay relay, 19, temperature sensor, 20, manual temperature adjuster, 21, manually-operated gate, 22, the high-pressure gas pressure switch, 23, the low-pressure fuel gas pressure switch, 24, the voltage stabilizing magnetic valve, 25, the gas emergency cut-off valve, 26, deep bead, 27, main burnt gas valve, 28, extended surface tube, 29 collecting box pipes, 30, fuel gas hole, 31, the burner sheet, 32, little thermoelectricity magnet valve, 33, little fiery wireway, 34, gas pipeline, 35, thermobarometer.
The specific embodiment
Below in conjunction with Fig. 1 the utility model is elaborated: this boiler is by pedestal 1, body of heater, water circuit system, burner, air-channel system, monitoring system in the pot body, several most of compositions such as petticoat pipe 14.
One, pedestal: pedestal 1 is supported by left and right sidesing supporting frame, channel-section steel to be formed, and left and right sidesing supporting frame is shaped by 4MM steel plate flanging, is welded with the 8# channel-section steel then.Two bracing frames are vertically arranged, 5 8# channel-section steels are laterally arranged, structural stability is good.Pedestal 1 except convenient install and attractive in appearance, mainly play the effect of ventilation, guarantee that there is the air of abundance the combustion chamber.
Two, body of heater: body of heater is made up of several parts such as top board 6, left side plate 2, back plate, control panel, protection panel, electric prospection cover, combustion chambers.The combustion chamber is surrounded by furnace wall, supports by the collection case to be connected with other parts of body of heater; Furnace wall liner refractory slab, refractory slab is fixed in the furnace wall by the refractory slab stator; The top is a smoke deflector; Opening is established at the middle part, and opening is blocked by deep bead 26.Furnace wall adopts flame-proof thermal insulation material.Furnace wall is provided with one deck insulation material outward again, has the effect of double-layer heat insulation, can reduce heat loss greatly, improves the thermal efficiency.Heat exchanger and burner are positioned at the combustion chamber.Deep bead 26 is arranged on the top before the burner, can block the influence of crosswind to flame, and deep bead 26 is provided with able to turn on or off flame-observing hole simultaneously, is used for observing the flame burning situation.
Three, water circuit system: water circuit system absorbs the heat that fuel gas buring produces, and heating power, heat, hot water outwards are provided.Water circuit system is by four collecting box pipes 29 in front and back and some extended surface tubes 28 be welded (as Fig. 2).Extended surface tube 28 is pressure parts in the combustion chamber, is made up of finned steel pipe, claims heat exchanger.Be with fin on the steel pipe, increased heating surface greatly, improved the thermal efficiency; The pore size that is connected between collecting box pipe 29 and the extended surface tube 28 differs, and front and back form a gradient, makes current along the ramp reverse flow, has two backhauls, has strengthened the absorption of heat.
Four, burner: burner by burner base, the nozzle that is connected with gas pipeline 34, be installed in the burner sheet 31 on the burner base, little lighter structure is formed: the size according to body of heater is provided with a plurality of nozzles and burner sheet 31, and nozzle and burner sheet 31 be an adjustable gap at interval; Little lighter structure is positioned at burner sheet next door, comprises the little fiery wireway 33 that is connected with gas pipeline 34, the little thermoelectricity magnet valve 32 of little fiery wireway 33 break-makes of control, the ignition mechanism that is connected with control module 4.Burner sheet 31 wherein is the long tube of fairshaped removable stainless steel for cross section, and one in long tube is shut, the other end is open, and one to two row's fuel gas hole 30 (as Fig. 3) is set on it.Burner sheet 31 is installed on the burner base, and burner base can be dismantled easily, thereby can change burner sheet 31 easily to be suitable for different combustion gas.This burner can directly insert the low-pressure gas pipeline, does not need voltage regulating station, and its burnt gas valve is a low pressure valve.This burner is equipped with little lighter structure, connects power switch 5 boiler startups, puts little fire earlier, and when the normal smooth combustion of little fire, robot control system(RCS) is just opened main burnt gas valve 27, and fuel just can enter the boiler normal combustion, can not produce deflagration phenomenon; After opening boiler, control system is given little fiery valve signal, and little fire is lighted a fire automatically.Can not light (as not having combustion gas or pressure low) as little fire, system closes automatically, sparking again after 5 minutes.Light as little fire, then system opens, and the big fire valve system begins normal operation.Flame-out under certain conditions as little fire, then monitoring system was closed big fire automatically in 0.2 second, little fiery valve system self-locking.This burner only need be changed the burner sheet just can be applicable to natural gas, liquefied petroleum gas, coal gas, liquefied petroleum gaseous mixture and other class combustion gas.This boiler is fuel gas pipeline, nozzle, burner sheet 31, boiler pedestal 1 suitable combination, and (be that gaseous-pressure is big, it is many to suck a wind to regulate air distribution voluntarily; Gaseous-pressure is little, and it is few to suck a wind), sufficient combustion, thermal efficiency height.
Five, air-channel system and monitoring system: air-channel system provides combustion gas, mainly comprises the gas pipeline 34 that is subjected to monitoring system control.For guaranteeing safety, the multiple tracks valve is installed on the gas pipeline 34 of this boiler, except manually-operated gate 20, the gas emergency cut-off valve 25 that revealed by the monitored combustion gas in main solenoid valve, voltage stabilizing magnetic valve 24 and the monitoring system of 4 controls of control module in the monitoring system.The gas leakage probe 3 that the monitoring combustion gas is revealed has two, is separately positioned on two of gas pipeline, and its output connects the gas emergency cut-off valve 25 in the gas pipeline 34.Gas pipeline 34 is provided with high-pressure gas pressure switch 22 and low-pressure fuel gas pressure switch 23, high-pressure gas pressure switch 22 is connected with control module 4 with low-pressure fuel gas pressure switch 23, when dying or gaseous-pressure when being reduced to a certain value, the minimum pressure switch cuts out, system's self-locking; When gaseous-pressure was too high, the maximum pressure switch cut out, system's self-locking; During power failure, system closes burnt gas valve automatically; During incoming call, system starts automatically.
Comprise the main solenoid valve of the sensor of gaseous-pressure in control module 4 and the connected detection air-channel system, the temperature sensor that detects the water circuit system temperature, time-delay relay 18, control gas pipeline 34 break-makes and voltage stabilizing magnetic valve 24, water temperature demonstration and adjustment control 16, the ignition mechanism of adjusting gas pipeline pressure in the monitoring system, manually water temperature is regulated controlling organization, and gas leakage detects controlling organization.Temperature sensor is surveyed the temperature in water route, and its output connects control module 4, shows and adjustment control 16 displays temperatures by water temperature.Water temperature demonstration and adjustment control 16 are installed in the display control panel back on the front panel, and the button 17 of adjusting is arranged on it, can set the output temperature of boiler.When water temperature shows and adjustment control 16 when malfunctioning, can regulate controlling organization by manual water temperature and regulate boiler temperature, manually water temperature adjusting controlling organization connects main solenoid valve and constitutes by being installed in manual temperature adjuster 20 in the water circuit system.In addition, this boiler is provided with independently thermobarometer 35, can show water temperature and gaseous-pressure simultaneously, in support indication mechanism when control module 4 is malfunctioning.Time-delay relay 18 can be avoided the frequent start-stop of boiler by the shortest time of setting boiler start/ stop.Ignition mechanism is an electronic lighter, the little lighter structure that electronic lighter and little fiery wireway 33 constitute in the burner.Be provided with little thermoelectricity magnet valve 32 in the little fiery wireway 33, little thermoelectricity magnet valve 32 is connected with control module 4, can control the start and stop of little fire.After opening boiler, control system is given little fiery valve signal, and little fire is lighted a fire automatically.Can not light (as not having combustion gas or pressure low) as little fire, system closes automatically, sparking again after 5 minutes.Light as little fire, then system opens, and the big fire valve system begins normal operation.Flame-out under certain conditions as little fire, then monitoring system was closed big fire automatically in 0.2 second, little fiery valve system self-locking.Surpass set normal temperature for a certain reason and reach high limit safe temperature as the boiler leaving water temperature, then system closes the large and small fire valve automatically, system's self-locking.Control module 4 in the present embodiment adopts the S8610M combustion controller (using method of this combustion controller and programmed method are seen its specification) of HONEYWELL.This boiler uses the 24V power supply.
Can set up the voltage stabilizing strainer valve in the monitoring system in the present embodiment, the voltage stabilizing strainer valve adopts the existing valve that is specifically designed to the combustion gas voltage stabilizing and filters.This valve is arranged in the combustion gas tracheae, can filter the impurity in the combustion gas, and the pressure reduction of adjustable gate both sides.Voltage stabilizing strainer valve independence manual adjustments, after the voltage stabilizing strainer valve was set, main burnt gas valve and voltage stabilizing magnetic valve changed to two main gas solenoid valves.Also the 24 usefulness voltage stabilizings of voltage stabilizing magnetic valve can be filtered magnetic valve and replace, also can reach the purpose of filtering pressure reduction in the combustion gas, the control valve both sides.Impurity needs manhole to be set, the impurity that easy cleaning leaches on the fuel gas pipeline on voltage stabilizing strainer valve or voltage stabilizing filtration magnetic valve side more for a long time in combustion gas.Manhole can be used in a threeway realization is set on the fuel gas pipeline.The setting of voltage stabilizing strainer valve makes boiler can use the sources of the gas that calorific value is lower or impurity is more such as coke-stove gas, biogas.
Six, petticoat pipe: petticoat pipe 14 is formed cover body by last chimney 11, upper conical-tube 10, lower stack 13 successively, the anti-blast cap 9 of infundibulate is set in the cover body, prevents that blast cap 9 is arranged on cover body central authorities by gripper shoe 8.Petticoat pipe 14 can prevent that big wind-fall row from blowing out little fire and causing blowing out, and prevents that the too high draft of chimney is excessive, and the thermal efficiency is reduced, and can also prevent the foreign matter obstruction flue that drops.For the bigger boiler of capacity two petticoat pipes (as shown in Figure 1) can be set.
Body of heater of the present utility model is square cabinet body structure, and the water inlet 7 and the delivery port 15 of water circuit system are arranged on the body of heater top, the serial or parallel connection of a plurality of boilers can being put together side by side when needs increase boiler capacity like this uses, the water route connects above boiler, can save the space, make things convenient for the connection in water route, realize modularization control.
Claims (10)
1. air suspended type module gas fired-boiler, petticoat pipe (14) by the body of heater on pedestal (1), the pedestal (1), body of heater top, and the water circuit system of the output heating power that comprises heat exchanger in the body of heater, the air-channel system that combustion gas is provided, burner and monitoring system constitute, wherein water circuit system comprises the heat exchanger that is positioned at the burner top, and this boiler is characterised in that: described water circuit system communicates with atmosphere; Described monitoring system comprises the main solenoid valve of the sensor of gaseous-pressure in control module (4) and the connected detection air-channel system, the temperature sensor that detects the water circuit system temperature, time-delay relay (18), control gas path on-off and regulates voltage stabilizing magnetic valve (24), water temperature demonstration and adjustment control (16), the ignition mechanism of gas circuit pressure, manually water temperature is regulated controlling organization, gas leakage detects and controlling organization, and is provided with independently the thermobarometer (35) that is connected with pressure sensor with temperature sensor; Described body of heater is square cabinet body structure, and the water inlet of water circuit system (7) and delivery port (15) are positioned at the body of heater top.
2. air suspended type module gas fired-boiler according to claim 1 is characterized in that: described gas leakage detects and controlling organization is popped one's head in (3) by the gas leakage that is positioned at the body of heater both sides and the gas emergency cut-off valve (25) of connected control combustion gas gas path on-off constitutes.
3. air suspended type module gas fired-boiler according to claim 1, it is characterized in that: the nozzle that described burner connects by burner base (1), with the combustion gas gas circuit, be installed in burner sheet (31) relative on the burner base with nozzle, little lighter structure is formed: according to the size of body of heater the quantity of nozzle and burner sheet (31), adjustable gap of every pair of nozzle and burner sheet (31) interval are set; Little lighter structure is positioned at burner sheet (31) next door, is made of with the ignition mechanism that is connected with control module (4) the tracheae that is connected with gas circuit.
4. air suspended type module gas fired-boiler according to claim 3 is characterized in that: the long tube that described burner sheet (31) is shut for removable of being provided with one to two steam vent (30), the other end is open, its cross section is streamlined.
5. air suspended type module gas fired-boiler according to claim 1 is characterized in that: the heat exchanger of described water circuit system is made of bilevel pair of backhaul extended surface tube (28).
6. air suspended type module gas fired-boiler according to claim 1, it is characterized in that: the sensor of the gaseous-pressure in the described monitoring system comprises high-pressure gas pressure switch (22) and low-pressure fuel gas pressure switch (23), is separately positioned on the front and back of voltage stabilizing magnetic valve (24).
7. air suspended type module gas fired-boiler according to claim 1, it is characterized in that: have additional the voltage stabilizing strainer valve that is arranged in gas circuit in the described monitoring system or voltage stabilizing magnetic valve (24) is filtered magnetic valve with voltage stabilizing and replace, and on the other fuel gas pipeline of strainer valve, manhole is set.
8. air suspended type module gas fired-boiler according to claim 1, it is characterized in that: described petticoat pipe (14) is formed cover body by last chimney (11), upper conical-tube (10), slower conical tube (12), lower stack (13) successively, the anti-blast cap (9) of infundibulate is set in the cover body, prevents that blast cap (9) is arranged on cover body central authorities by gripper shoe (8).
9. air suspended type module gas fired-boiler according to claim 1; it is characterized in that: described body of heater is made of top board (6), left side plate (2), back plate, front panel and the inner combustion chamber of outside, and wherein front panel is provided with display control panel, transparent electric prospection cover.
10. air suspended type module gas fired-boiler according to claim 1 is characterized in that: described control module (4) adopts the S8610M combustion controller of HONEYWELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920105831XU CN201355118Y (en) | 2009-02-20 | 2009-02-20 | Atmosphere module gas fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920105831XU CN201355118Y (en) | 2009-02-20 | 2009-02-20 | Atmosphere module gas fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355118Y true CN201355118Y (en) | 2009-12-02 |
Family
ID=41411459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920105831XU Expired - Lifetime CN201355118Y (en) | 2009-02-20 | 2009-02-20 | Atmosphere module gas fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201355118Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115379A (en) * | 2013-02-01 | 2013-05-22 | 中国石油天然气股份有限公司 | Controlling system of steam injection boiler gas leakage and boiler safe operation |
| CN105004034A (en) * | 2014-04-15 | 2015-10-28 | 樱花卫厨（中国）股份有限公司 | Anti-downdraft device for outdoor gas water heater |
| CN106545880A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | A kind of domestic gas formula boiler monitoring system |
| CN108225018A (en) * | 2017-12-29 | 2018-06-29 | 蚌埠隆华压铸机有限公司 | A kind of natural gas smelting furnace |
| CN109945220A (en) * | 2017-12-19 | 2019-06-28 | Posco公司 | Exhaustion dilution device |
-
2009
- 2009-02-20 CN CNU200920105831XU patent/CN201355118Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115379A (en) * | 2013-02-01 | 2013-05-22 | 中国石油天然气股份有限公司 | Controlling system of steam injection boiler gas leakage and boiler safe operation |
| CN103115379B (en) * | 2013-02-01 | 2015-06-03 | 中国石油天然气股份有限公司 | Controlling system of steam injection boiler gas leakage and boiler safe operation |
| CN105004034A (en) * | 2014-04-15 | 2015-10-28 | 樱花卫厨（中国）股份有限公司 | Anti-downdraft device for outdoor gas water heater |
| CN105004034B (en) * | 2014-04-15 | 2017-09-29 | 樱花卫厨（中国）股份有限公司 | Outdoor gas water heater backward-wind preventing device |
| CN106545880A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | A kind of domestic gas formula boiler monitoring system |
| CN109945220A (en) * | 2017-12-19 | 2019-06-28 | Posco公司 | Exhaustion dilution device |
| CN109945220B (en) * | 2017-12-19 | 2020-05-08 | Posco公司 | Exhaust gas dilution device |
| CN108225018A (en) * | 2017-12-29 | 2018-06-29 | 蚌埠隆华压铸机有限公司 | A kind of natural gas smelting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201355118Y (en) | Atmosphere module gas fired boiler | |
| RU203544U1 (en) | LONG BURNING BOILER | |
| KR101324474B1 (en) | Firewood boiler of upward and downward firing construction | |
| CN204853567U (en) | Realize residual heat from flue gas's commercial gas -cooker | |
| RU98546U1 (en) | HOT WATER BOILER WITH HOT WATER DISCHARGE | |
| CN201197606Y (en) | Cottage steamer capable of quickly saving energy | |
| CN204665255U (en) | Modified vertical coal-fired boiler | |
| CN113669762A (en) | Vegetable oil high-pressure micro-fog combustion stove and control method thereof | |
| RU108568U1 (en) | HOT WATER BOILER WITH HOT WATER DISCHARGE | |
| CN204806663U (en) | Environment -friendly heating stove | |
| CN202253556U (en) | Horizontal counter-burning multi-pass environmentally-friendly and energy-saving boiler | |
| CN200940856Y (en) | Secondary combustion energy saving stove having two-way blasting and burning organic fuel | |
| CN101608799B (en) | Straw briquette gasification dual-swirl burning furnace | |
| CN201066144Y (en) | Firewood-saving oven | |
| CN2267421Y (en) | Ambient pressure hot water and steam generating heater using oil as fuel | |
| CN202947123U (en) | Coal-fired full-automatic gasification combustion boiler | |
| CN215892462U (en) | Vegetable oil high-pressure micro-fog combustion stove | |
| CN2851867Y (en) | High-efficiency environment-friendly burning boiler | |
| CN2586928Y (en) | Energy-saving boiler | |
| CN107883409A (en) | A kind of fuel gas high efficiency large stove | |
| CN200972156Y (en) | Multipurpose energy-saving stove | |
| CN201513930U (en) | Straw block gasification dual-swirl combustion furnace | |
| CN207599805U (en) | A kind of fuel gas high efficiency large stove | |
| CN202119098U (en) | Energy-saving environment-protective boiler combustion device | |
| CN201373391Y (en) | Gas boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091202 |
|
| CX01 | Expiry of patent term |