CN209341609U - A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas - Google Patents
A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas Download PDFInfo
- Publication number
- CN209341609U CN209341609U CN201822120156.XU CN201822120156U CN209341609U CN 209341609 U CN209341609 U CN 209341609U CN 201822120156 U CN201822120156 U CN 201822120156U CN 209341609 U CN209341609 U CN 209341609U
- Authority
- CN
- China
- Prior art keywords
- water
- heat exchanger
- burner
- blower
- combustion
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of warm bath dual-purpose stoves of novel low nitrogen condensed type combustion gas, it is related to wall-hung boiler field, including casing, circulating pump, controller, plate heat exchanger, condensation water collection box, segmentation tracheae, burner, secondary heat exchanger, blower, electronics wind pressure sensor, smoke extraction chamber, main heat exchanger, electric triple valve, expansion tank, sectional combustion control device and gas ratio valve are provided in the casing；Its heat exchange efficiency is high, and discharged nitrous oxides reach 5 grades of country, and reliable performance, and safety and environmental protection solves the deficiencies in the prior art.
Description
Technical field
The utility model relates to wall-hung boiler fields, and in particular to a kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas.
Background technique
With the high speed development of world economy, energy problem becomes increasingly conspicuous, high-efficient energy-saving environment friendly be the current whole world all very
The theme of care and the developing direction of kitchen appliance industry.Nitrogen oxides is to cause one of primary pollution source of atmosphere pollution.
With the high speed development of world economy, energy problem becomes increasingly conspicuous, high-efficient energy-saving environment friendly be the current whole world all very
The theme of care and the developing direction of kitchen appliance industry.Nitrogen oxides is to cause one of primary pollution source of atmosphere pollution, now general
Logical wall-hung boiler, the blow off levels of nitrogen oxides are below 3 grades, and effects of energy conservation and environmental protection need to be improved.
Utility model content
In view of the deficiencies of the prior art, the utility model lies in that proposing that a kind of warm bath of novel low nitrogen condensed type combustion gas is dual-purpose
Furnace, heat exchange efficiency is high, and discharged nitrous oxides reach 5 grades of country, and reliable performance, safety and environmental protection, solves the prior art not
Foot.
To achieve the above object, the technical scheme adopted by the utility model is
A kind of novel low nitrogen condensed type combustion gas is warm to bathe dual-purpose stove, including casing, and circulating pump, control are provided in the casing
Device, plate heat exchanger, condensation water collection box, segmentation tracheae, burner, secondary heat exchanger, blower, electronics wind pressure sensor, smoke evacuation
Chamber, main heat exchanger, electric triple valve, expansion tank, sectional combustion control device and gas ratio valve；The gas ratio valve connection
The sectional combustion control device, the sectional combustion control device connect the burner, the combustion by two air inlet pipe
Combustion chamber is set in burner, the main heat exchanger is set on the combustion chamber, the combustion chamber connects the smoke extraction chamber, the row
Smoke chamber connects the blower, and the blower is provided with the electronics wind pressure sensor, and the air outlet of the blower and described time are changed
The air inlet of hot device is connected, and the air outlet of the secondary heat exchanger connects flue；The gas proportion valve inlet connects inlet suction port；
Combustion chamber demarcation plate is set in the combustion chamber, and the circulating pump passes through pump-burner connecting tube and the burner upper pipeline
Water inlet be connected, the water outlet of the burner upper pipeline passes through the water inlet of time heat exchanger water inlet pipe and the secondary heat exchanger
Connection, the secondary heat exchanger pass through time heat exchanger outlet pipe and connect with the water inlet of the main heat exchanger, the main heat exchanger
Water outlet is connect by outlet pipe with the electric triple valve；Hot water temperature's controller is arranged in the main heat exchanger water outlet；It is described
Electric triple valve connection heating water outlet connector and sanitary outfall connector；The pump entry connection bathroom water supply connector and heating are returned
Water swivel；Be additionally provided in the casing electronic pressure transmitter for detecting heating system pressure, inflow temperature sensor,
High-temperature water and life water for forming burning carry out the plate heat exchanger of energy exchange, the water compensating valve for being used for moisturizing, heating
Circulating hot water temperature sensor detects water flow sensor for domestic water water flow；The secondary heat exchanger passes through condensed water
Collecting pipe is connect with the condensation water collection box, and condensate water discharging mouth is arranged in the condensation water collection box；The expansion tank
Heating backwater joint is connected by expansion tank connecting tube；The controller and the gas ratio valve, blower, electronics wind pressure pass
Sensor, electronic pressure transmitter, inflow temperature sensor, water flow sensor and burner electrical connection.
Combustion chamber demarcation plate is fixed in the combustion chamber, between burner and heat exchanger.Expansion tank is for balancing heating system
System expands with heat and contract with cold pressure change, keeps pressure heating system pressure constant.
The secondary heat exchanger collection heat exchange, condensation water collection and smoke discharging function one, main body use stainless steel substrates, heat exchange
Efficiency is much higher than stainless sense corrugated tube heat exchanger in the market, while more resistant to corrosion.
Further, the burner is low nitrogen Water-cooling type burner, including fire row and segmentation tracheae, in the fire row
It is wrapped with water cooling tube.
Further, the fire row both ends are both provided with igniter and flame sensing device.
Further, admission pressure test device is provided in the gas ratio valve, the admission pressure test dress
It sets to the controller and sends signal, it can be determined that whether normal and combustion gas the pressure value of combustion gas, to be fired for more acurrate adjusting
The tolerance of gas makes burning more perfect.
Further, the sample tap of the electronics wind pressure sensor is connected with the sample tap of blower by hose.
Further, the blower is strong odd test blower, it can guarantee accurate gas-air ratio under each load,
It makes burning more perfect, while being negative pressure, more secure and reliable in combustion chamber.
The beneficial effects of the utility model are:
1, the utility model uses electronics wind pressure sensor instead of traditional blast switch, by sentencing to wind pressure value
It is disconnected can more accurate regulating gas air ratio, guarantee under any circumstance, combustion gas index all meets national standard, and increase to
The adaptability of family environment.
2, the strong odd test blower that the utility model uses adjustable revolving speed and can test the speed, can guarantee under each load
Accurate gas-air ratio, makes burning more perfect.And used together with electronics wind pressure sensor, solve blast switch vulnerable to
Environment influences the problem of wrong report failure.
3, the utility model uses the technology of the large, medium and small three sections of burnings of gas ratio valve bonus point, mainly leads in structure
Segmentation combustion control device and gas ratio valve are crossed, main controller is big by the water flow that water flow sensor and temperature sensor provide
Small and water temperature, when burning, carry out judgement segmentation first, then control the aperture of gas ratio valve, not only fast implement the constant temperature control of water
System.And significantly increase the adjusting ratio of combustion gas.
4, the utility model increases combustion chamber reticle in a combustion chamber, and by combustion chamber, tracheae is corresponding is divided into two with segmentation
Part, Smaller load condensed water more situation when solving sectional combustion.
5, the utility model fires burner using novel low nitrogen water-cooled, and dense-dilute burner combustion technology is mutually tied with Water Cooling Technology
It closes, changes burner and dense flame and light flame organically combine the formation condition of effective control nitrogen oxides, to reduce
The discharge of nitrogen oxides.Dense flame combustion form is partly-premixed burning, and the combustion type of light flame is full premix combustion, the two
Organically combine the generation that nitrogen oxides is reduced in very big degree.Since in bias combustion, light flame is usually main flame combustion
Gas velocity is larger, and since its primary air ratio is larger, flame propagation velocity is smaller to be easy de- fire, but primary due to dense flame
Air coefficient is smaller, burns more stable, therefore the stability of bias combustion can realize so far both solve stabilization by dense flame
The problem of property, inhibits the generation of nitrogen oxides again.In addition to using dense-dilute burner combustion technology, in order to further decrease nitrogen oxides
It generates, also uses water-cooled, be exactly that cold water pipe disk one around burner encloses, reduce the temperature of burner.Reducing temperature also has
Conducive to the reduction of nitrogen oxides.
6, the utility model uses dual ignition, and in practice according to circumstances, at the same time igniting, left igniting and right igniting
Flexible conversion between three kinds of situations, greatly improves ignition success rate.
7, the utility model uses Flame Double induction system, is not only able to satisfy the requirement of sectional combustion, also to greatest extent
When full section being avoided to burn, only burnt part the case where, while can also quick and precisely judge sectioning valve whether damage.
Detailed description of the invention
Fig. 1 is the main view of an embodiment of the present invention；
Fig. 2 is the bottom view of an embodiment of the present invention；
Fig. 3 is the side view of an embodiment of the present invention；
Fig. 4 is the burner structure schematic diagram of the utility model；
Description of symbols:
1- circulating pump, 2- pump-burner connecting tube, 3- condensation water collection box, 4- are segmented tracheae, 5- burner, 6- condensation
Water collection pipe, the combustion chamber 7- demarcation plate, 8- heat exchanger water inlet pipe, 9- heat exchanger, 10- heat exchanger outlet pipe, 11- cigarette
Road, 12- blower, 13- electronics wind pressure sensor, 14- smoke extraction chamber, 15- hot water temperature sensor, 16- main heat exchanger, 17- burning
Room, 18- air inlet pipe, 19- expansion tank connecting tube, 20- air inlet pipe, 21- sectional combustion control device, 22- gas ratio valve,
23- outlet pipe, 24- circulating hot water temperature sensor, 25- electricity triple valve, 26- electronic pressure transmitter, 27- inflow temperature pass
Sensor, 28- plate heat exchanger, 29- water compensating valve, 30- water flow sensor, 31- heating water outlet connector, 32- sanitary outfall connector,
33- inlet suction port, 34- condensed water outlet mouth, 35- bathroom water supply connector, 36- heating backwater joint, 37- expansion tank, 38- control
Device processed, the right igniter of 39-, the right flame sensing device of 40-, the left igniter of 41-, the left flame sensing device of 42-.
Specific embodiment
It is practical to this below with reference to embodiment in order to keep the purpose of this utility model, technical solution and advantage clearer
It is novel to be further elaborated.
In this example, as shown in figures 1-4, the warm bath dual-purpose stove of a kind of novel low nitrogen condensed type combustion gas, including casing, institute
State be provided in casing circulating pump 1, controller 38, plate heat exchanger 28, condensation water collection box 3, burner 5, secondary heat exchanger 9,
Blower 12, electronics wind pressure sensor 13, smoke extraction chamber 14, main heat exchanger 16, electric triple valve 25, expansion tank 37, sectional combustion control
Device 21 and gas ratio valve 22 processed；The gas ratio valve 22 connects the sectional combustion control device 21, the segmentation combustion
It burns control device 21 and connects the burner 5 by two air inlet pipe 18,20, combustion chamber 17 is set on the burner 5, it is described
The main heat exchanger 16 is set on combustion chamber 17, and the combustion chamber 17 connects the smoke extraction chamber 14, and the smoke extraction chamber 14 connects institute
Blower 12 is stated, the blower 12 is provided with the electronics wind pressure sensor 13, the air outlet of the blower 12 and described heat exchange
The air inlet of device 9 is connected, and the air outlet of the secondary heat exchanger 9 connects flue 11；22 entrance of gas ratio valve connects air inlet
Connector 33；Combustion chamber demarcation plate 7 is set in the combustion chamber 17；The circulating pump 1 by pump-burner connecting tube 2 with it is described
The water inlet of 5 upper pipeline of burner is connected, the water outlet of 5 upper pipeline of burner pass through time heat exchanger water inlet pipe 8 with it is described
The water inlet of secondary heat exchanger 9 connects, and the secondary heat exchanger 9 passes through time water inlet of heat exchanger outlet pipe 10 and the main heat exchanger 16
The water outlet of mouth connection, the main heat exchanger 16 is connect by outlet pipe 23 with the electric triple valve 25；The main heat exchanger 16
Hot water temperature's controller 20 is arranged in water outlet；The electricity triple valve 25 connects heating water outlet connector 31 and sanitary outfall connector 32；
1 entrance of the circulating pump connection bathroom water supply connector 35 and heating backwater joint 36；It is additionally provided in the casing for detecting
Electronic pressure transmitter 26, inflow temperature sensor 27, the high-temperature water for the generation that will burn and the life of heating system pressure
Water carries out the plate heat exchanger 28 of energy exchange, the water compensating valve 29 for moisturizing, heating circulating hot water temperature sensor 24, is used for
The water flow sensor 30 of the water flow of detection detection life water；The secondary heat exchanger 9 by condensation water collection pipe 6 with it is described cold
Condensed water collection box 3 connects, and condensate water discharging mouth 34 is arranged in the condensation water collection box 3；The expansion tank 37 passes through expansion
Water tank connecting pipe 19 connects heating backwater joint 36；The controller 38 and the gas ratio valve 22, blower 12, electronics wind pressure
Sensor 13, electronic pressure transmitter 26, inflow temperature sensor 27, water flow sensor 30 and burner 5 are electrically connected.Control
Device 1 is existing microprocessor.
As a kind of prioritization scheme, the burner 5 be low nitrogen Water-cooling type burner, including fire row 51 and segmentation tracheae 4,
Water cooling tube 52 is wrapped in the fire row 51.
As a kind of prioritization scheme, 51 both ends of fire row are both provided with igniter and flame sensing device, respectively
Right igniter 39, right flame sensing device 40, left igniter 41 and left flame sensing device 42.
As a kind of prioritization scheme, admission pressure test device, the air inlet pressure are provided in the gas ratio valve 22
Force test device sends signal to the controller 38.
As a kind of prioritization scheme, the sample tap of the electronics wind pressure sensor 13 and the sample tap of blower 12 pass through hose
It is connected.
As a kind of prioritization scheme, the blower 17 is strong odd test blower.
As a kind of prioritization scheme, the condensation water collection box 3 is equipped with condensed water neutralisation treatment device.
This wall-hung boiler working principle is as follows:
After machine connecting power, main controller 38 enters self-test state, judges whether each parameter is normal, and judges to be heating
Mode or bathroom mode, if it is heating mode, then electric triple valve 25 is switched to heating water route, and heating water routes heating return water
Connector 36, circulating pump 1, pump-burner connecting tube 2, water cooling tube 52, secondary heat exchanger water inlet pipe 8, secondary heat exchanger 9, secondary heat exchanger go out
Water pipe 10, main heat exchanger 16, outlet pipe 23, heating water outlet connector 31 and external heating system are constituted, and in heating, are recycled first
After 1 starting of pump, blower 12 is operated, and right igniter 39 and left igniter 41 are discharged simultaneously, and gas ratio valve 22 is opened, segmentation
The valve of combustion control device 21 is needed to open, be opened if it is right sectioning valve according to payload, then the right fire row 51 is fired
It burns；If right flame sensing device 40 is not sensed by flame, lasting progress of discharging is entered back into after completing a cycle and is lighted a fire again
State.After if right flame sensing device 40 senses flame, stopping of discharging, while machine enters Regulation of Constant Temperature, such as
Fruit is that left sectioning valve is opened, then left side fire row 51 is burnt；If left flame sensing device 42 is not sensed by flame, electric discharge continues
It carries out, enters back into fired state again after completing a cycle.If discharged after left flame sensing device 42 senses flame
Stop, being opened simultaneously if it is left and right sectioning valve, then all fire row burnings will burn simultaneously, left sensing device 49 and right induction dress
Flame will be sensed simultaneously by setting 51, if wherein there is a sensing device to be not sensed by flame, completion is worked as in lasting progress of discharging
Fired state again is entered back into after a cycle.If left flame sensing device 42 and right flame sensing device 40 all sense
Should be to after flame, then stopping of discharging is adjusted tolerance according to the temperature gas ratio valve 22 of water flow and Inlet and outlet water, thus
Keep heating leaving water temperature consistent with set temperature.In machine using in preceding and use process, main controller 38 passes through each sensor
It is monitored, it is such as abnormal, then it can turn off gas source.
When user uses bathroom water under heating mode, when water flow sensing unit 30 detects water flow signal, electric triple valve
25 are switched to life water loop, life water loop by circulating pump 1, pump-burner connecting tube 2, fire row 5 cooling water pipe, secondary change
Hot device water inlet pipe 8, secondary heat exchanger 9, secondary heat exchanger outlet pipe 10, main heat exchanger 16, plate heat exchanger 28 are constituted, logic of burning
It is consistent under heating mode.Life water enters plate heat exchanger 28 from bathroom water supply connector 35 and exchanges heat, becomes required hot water
It is flowed out from sanitary outfall connector 32.
When machine is originally at bathroom mode, machine operation logic uses as life water under heating mode.
In the process of running, the burning of burner 5 generates high-temperature flue gas and flows through main heat exchanger 16 from bottom to top, from main switch
16 flue gases (temperature has been reduced to 200 DEG C or so) come out enter time heat exchanger 9, and flue-gas temperature drops to dew point hereinafter, generating big
Condensed water is measured, condensed water sequentially enters condensation water collection pipe 6 and condensation water collection box 3 finally by 34 row of condensed water outlet mouth down
Out, while low-temperature flue gas is discharged upwardly through flue 11.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas, including casing, which is characterized in that be provided with and follow in the casing
Ring pump (1), plate heat exchanger (28), condensation water collection box (3), segmentation tracheae (4), burner (5), secondary changes controller (38)
Hot device (9), blower (12), electronics wind pressure sensor (13), smoke extraction chamber (14), main heat exchanger (16), electric triple valve (25), expansion
Water tank (37), sectional combustion control device (21) and gas ratio valve (22)；
The gas ratio valve (22) connects the sectional combustion control device (21), and the sectional combustion control device (21) is logical
It crosses two air inlet pipe (18,20) and connects the burner (5), combustion chamber (17) are set on the burner (5), the combustion chamber
(17) it is arranged on the main heat exchanger (16), the combustion chamber (17) connects the smoke extraction chamber (14), and the smoke extraction chamber (14) is even
It connects the blower (12), the blower (12) is provided with the electronics wind pressure sensor (13), the air outlet of the blower (12)
It is connected with the air inlet of the secondary heat exchanger (9), the air outlet of the secondary heat exchanger (9) connects flue (11)；The combustion gas ratio
Example valve (22) entrance connection inlet suction port (33)；Combustion chamber demarcation plate (7) are set in the combustion chamber (17)；
The circulating pump (1) is connected by pump-burner connecting tube (2) with the water inlet of the burner (5) upper pipeline, described
The water outlet of burner (5) upper pipeline passes through time heat exchanger water inlet pipe (8) and connect with the water inlet of the secondary heat exchanger (9), institute
It states time heat exchanger (9) to connect by time heat exchanger outlet pipe (10) with the water inlet of the main heat exchanger (16), the main heat exchange
The water outlet of device (16) is connect by outlet pipe (23) with the electric triple valve (25)；Main heat exchanger (16) the water outlet setting
Hot water temperature's controller (20)；The electricity triple valve (25) connects heating water outlet connector (31) and sanitary outfall connector (32)；Institute
State circulating pump (1) entrance connection bathroom water supply connector (35) and heating backwater joint (36)；It is additionally provided with and is used in the casing
The electronic pressure transmitter (26) of measurement heating hydraulic pressure, inflow temperature sensor (27), be used to burn generated high-temperature water
The plate heat exchanger (28), the water compensating valve (29) for moisturizing, heating circulating hot water temperature for carrying out energy conversion with life water pass
Sensor (24) detects water flow sensor (30) for domestic water water flow；
The secondary heat exchanger (9) is connect by condensation water collection pipe (6) with the condensation water collection box (3), and the condensed water
Condensate water discharging mouth (34) are arranged in collection box (3)；
The expansion tank (37) passes through expansion tank connecting tube (19) connection heating backwater joint (36)；The controller (38)
With the gas ratio valve (22), blower (12), electronics wind pressure sensor (13), electronic pressure transmitter (26), inflow temperature
Sensor (27), water flow sensor (30) and burner (5) electrical connection.
2. the warm bath dual-purpose stove of combustion gas as described in claim 1, which is characterized in that the burner (5) is the combustion of low nitrogen water-cooled
Burner, including fire row (111) and segmentation tracheae (4), are wrapped with water cooling tube (112) on the fire row (111).
3. the warm bath dual-purpose stove of combustion gas as claimed in claim 2, which is characterized in that fire row (111) both ends are both provided with a little
Fiery device and flame sensing device.
4. the warm bath dual-purpose stove of combustion gas as described in claim 1, which is characterized in that be provided in the gas ratio valve (22) into
Air pressure force test device, the admission pressure test device send signal to the controller (38).
5. the warm bath dual-purpose stove of combustion gas as described in claim 1, which is characterized in that the sampling of the electronics wind pressure sensor (13)
Mouth is connected with the sample tap of blower (12) by hose.
6. the warm bath dual-purpose stove of combustion gas as described in claim 1, which is characterized in that the blower (12) is strong odd test blower.
7. the warm bath dual-purpose stove of combustion gas as described in claim 1, which is characterized in that the condensation water collection box (3) is equipped with condensation
Water neutralisation treatment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822120156.XU CN209341609U (en) | 2018-12-17 | 2018-12-17 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822120156.XU CN209341609U (en) | 2018-12-17 | 2018-12-17 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209341609U true CN209341609U (en) | 2019-09-03 |
Family
ID=67757480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822120156.XU Active CN209341609U (en) | 2018-12-17 | 2018-12-17 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209341609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612104A (en) * | 2018-12-17 | 2019-04-12 | 成都前锋电子有限责任公司 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
-
2018
- 2018-12-17 CN CN201822120156.XU patent/CN209341609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612104A (en) * | 2018-12-17 | 2019-04-12 | 成都前锋电子有限责任公司 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109612104A (en) | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas | |
| CN101118127B (en) | Full pre-mix condensing heating hot-water dual-purpose device | |
| CN201517840U (en) | Household gas-fired wall-mounted dual purpose boiler for heating and bathing | |
| CN201662226U (en) | Condensation-type gas-fired heating water heater | |
| CN201875806U (en) | Dual-purpose wall-hung furnace for plate-type heat exchanger | |
| CN203757989U (en) | Novel gas water heater | |
| CN108731269A (en) | A kind of condensation-proof burnt gas wall hanging furnace and its condensation-proof method | |
| CN103363658A (en) | Large double-barrel vertical gas boiler | |
| CN212274265U (en) | Low-nitrogen condensation wall-mounted furnace | |
| CN209263326U (en) | Intelligent maintainance prewarning fully pre-mixing gas combustion wall-hung boiler | |
| CN209341609U (en) | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas | |
| CN209263380U (en) | A kind of novel low nitrogen condensing gas-fired fast water heater | |
| CN110486947A (en) | A kind of two fans gas heater | |
| CN205403154U (en) | Invert strong drum -type water -cooled full premix gas heater | |
| CN208832737U (en) | A kind of condensation-proof burnt gas wall hanging furnace | |
| CN205579720U (en) | Energy saving and emission reduction's gas hanging stove | |
| CN200996721Y (en) | Premixed condensing two-purpose apparatus with heating and hot-water functions | |
| CN104501397A (en) | Membrane water-wall compound return water condensing type natural gas hot water boiler | |
| CN207162700U (en) | A kind of warm bath dual-purpose stove of full pre-mix condensing combustion gas | |
| CN207599960U (en) | A kind of wall-hung boiler by wireless signal intellectual monitoring internal information | |
| CN209689195U (en) | A kind of hot equipment of combustion | |
| CN207162699U (en) | A kind of warm bath dual-purpose stove of full pre-mix condensing combustion gas | |
| CN208536381U (en) | Gas furnace | |
| CN210291815U (en) | Modular steam engine with steam-water separation function | |
| CN209726498U (en) | A kind of efficient frequency conversion multimode wall-hung boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |