CN206787057U - The low energy-saving hot-water boiler of nitrogen - Google Patents
The low energy-saving hot-water boiler of nitrogen Download PDFInfo
- Publication number
- CN206787057U CN206787057U CN201720621916.8U CN201720621916U CN206787057U CN 206787057 U CN206787057 U CN 206787057U CN 201720621916 U CN201720621916 U CN 201720621916U CN 206787057 U CN206787057 U CN 206787057U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- flue gas
- exchanger tube
- flue
- water
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 16
- 239000003546 flue gas Substances 0.000 claims abstract description 57
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000010992 reflux Methods 0.000 claims abstract description 11
- 230000000391 smoking effect Effects 0.000 claims abstract description 5
- -1 tubular shell Chemical compound 0.000 claims abstract description 3
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of low energy-saving hot-water boiler of nitrogen, including tubular shell, flue, the first heat exchanger tube and flue gas rotary room and burner, flue gas rotary room connects the rear end for being arranged on flue, burner is arranged on outside tubular shell front end, the flame lance of burner is extended in flue, and flame lance is coaxially set with flue, the first heat exchanger tube connects with flue gas rotary room；Also include flue gas exteenal reflux pipeline, its one end connects flue gas exhausting pipe line, the other end connects the plenum system of burner, and temperature sensor, smoking blower fan and motor-operated control valve are provided with flue gas exteenal reflux pipeline, condensing energy-saving device is also serially connected with the flue gas exhausting pipe line.Boiler structure in the utility model is reasonable, can suppress thermal NO generation, and can be beneficial to improve heat recovery and utilization rate, and the condensing energy-saving device in the boiler meets the requirement of boiler big flow water inlet.
Description
Technical field
It the utility model is related to a kind of boiler, and in particular to a kind of low energy-saving hot-water boiler of nitrogen.
Background technology
Boiler is a kind of energy conversion, and the energy inputted into boiler has chemical energy, an electric energy in fuel, and boiler is defeated
Go out the steam with certain heat energy, high-temperature water or organic heat carrier.The original meaning of pot is the water container heated on fire, and stove refers to combustion
The place of fuel burning, boiler then include pot and stove two large divisions.Caused hot water or steam can directly be industrial production in boiler
With people's lives provide needed for heat energy, can also be converted to mechanical energy by Steam Power Equipment, or again by generator by machinery
Electric energy can be converted to.The boiler for providing hot water is referred to as hot-water boiler, is mainly used in living, also there is a small amount of application in industrial production.
The boiler for producing steam is steam boiler, is often simply called boiler, is used for thermal power station, ship, locomotive and industrial and mining enterprises.In order to return
Receive the heat in discharge flue gas, it will usually be arranged in series condenser in the flue gas exhausting pipe line of boiler, cold water is into boiler
Condenser is first passed through before interior can absorb heat in flue gas exhausting pipe line, so as to reach energy-conserving action, existing condenser
Structure be：Heat exchanger tube including housing and one or more series connection being arranged in housing, heat exchanger tube is by repeatedly roundabout curved
Song, one end connection external water pipe of heat exchanger tube, other end connection boiler feed water mouth, because the caliber of heat exchanger tube is smaller, therefore this
Kind condenser is adapted on the boiler of low discharge water inlet, and is unsuitable on the boiler of big flow water inlet, and the knot of existing heat exchanger tube
Structure setting is unreasonable, and inner space waste is more, and the recovery utilization rate of heat is relatively low.In addition, the unreasonable structure of existing boiler
In fuel combustion, temperature is too high causes thermal NO growing amount more, in light of this situation, therefore boiler for producing factory
Family is necessary to optimize improvement to the structure of existing boiler.
Utility model content
On the other hand, the utility model, which aims to provide one kind, can suppress NO_x formation, and can be beneficial to improve heat time
The hot-water boiler of utilization rate is received, and the condensing energy-saving device in the hot-water boiler meets the requirement of boiler big flow water inlet.
Realizing the technical scheme of the utility model purpose is：
A kind of energy-saving hot-water boiler of low nitrogen, including tubular shell, flue, the first heat exchanger tube and the flue gas laterally set return
Turn room and burner, the axis direction of the axis direction of the flue and first heat exchanger tube is parallel, and with the cylinder
The axis direction of shape housing is in the same direction, and the flue gas rotary room connection is arranged on the rear end of the flue, and the burner is arranged on
Outside the tubular shell front end, the flame lance of the burner is extended in the flue, and the flame lance with it is described
Flue is coaxially set, and first heat exchanger tube connects with the flue gas rotary room；Also include flue gas exteenal reflux pipeline, its one end
Flue gas exhausting pipe line is connected, the other end connects the plenum system of the burner, is provided with the flue gas exteenal reflux pipeline
Detect the temperature sensor of flue-gas temperature, the smoking blower fan for accelerating flow of flue gas and for controlling flue gas flow size
Motor-operated control valve；Condensing energy-saving device is also serially connected with the flue gas exhausting pipe line, condensing energy-saving device includes having flue gas
The square tube type shell of passage, be arranged on water inlet supervisor that the square tube type housing exterior and the square tube type shell set in the same direction and
Water outlet main pipe and multiple second heat exchanger tubes being fixed in the square tube type shell, the water inlet supervisor set with water outlet main pipe
In the square tube type shell homonymy and be arranged in parallel one on the other, described multiple second heat exchanger tubes according to line number be N, columns
Arranged for M rectangular array, N and M is all higher than being equal to 2, is provided between the water inlet supervisor and water outlet main pipe vertically arranged
Water inlet pipe and exit branch, the second heat exchanger tube of each column side end is correspondingly arranged described in water inlet pipe described in one and one
Exit branch, one end of each water inlet pipe is fixed with the water inlet supervisor and connects, the other end of the water inlet pipe
Fix but do not connect with the water outlet main pipe, one end of the exit branch is fixed and connected with the water outlet main pipe, it is described go out
The other end of water branch pipe is fixed with the water inlet supervisor but does not connect, and water inlet and the water inlet pipe of each second heat exchanger tube connect
Logical, the delivery port of each second heat exchanger tube connects with exit branch, and each second heat exchanger tube is in roundabout bending, and described the
Distribution is provided with fin on the outer wall of two heat exchanger tubes.
In above-mentioned technical proposal, the side perisporium of the flue is bellows-like structure.
In above-mentioned technical proposal, first heat exchanger tube is divided into two groups, and two group of first heat exchanger tube is relative located at the flue
Both sides, every group of first heat exchanger tube include more first heat exchanger tubes.
In above-mentioned technical proposal, both ends top is provided with reinforcement structure in the tubular shell, and the reinforcement structure includes connecting
Connect the front end-plate and circumferential wall of the end plate of the tubular shell and the first bracing piece of circumferential wall and the connection tubular shell
The second bracing piece, multiple first bracing pieces and multiple second bracing pieces are provided at circumferentially spaced along tubular shell.
In above-mentioned technical proposal, the length direction of each second heat exchanger tube along horizontally disposed, and with cigarette in exhaust gases passes
Flow of air direction is vertical.
In above-mentioned technical proposal, N is that 5~7, M is 4~6.
In above-mentioned technical proposal, each second heat exchanger tube includes four spaced straight lengths, and described four straight
Pipeline section sequentially connects and composes the second described heat exchanger tube by return bend, and four straight lengths are respectively the first straight length, second straight
Pipeline section, the 3rd straight length and the 4th straight length, first straight length are on first level face with the 3rd straight length, institute
The second straight length and the 4th straight length is stated to be on different the second horizontal plane in the first level face.
In above-mentioned technical proposal, the square tube type enclosure is provided with water leg, institute in the lower section of second heat exchanger tube
The bottom for stating water leg is provided with and communicated with drainpipe.
The utility model has positive effect：Using the structure in the utility model, set up outside flue gas and return on boiler
Flow tube road, its one end connection flue gas exhausting pipe line, the other end connects the plenum system of the burner, by the way that a part is vented
Return in the plenum system of burner, so as to reduce the oxygen concentration in air mixture, play heat absorption body, will not
Ignition temperature in flue is set to become too high, so as to suppress the generation of thermal NO；In addition by setting the utility model
In condensing energy-saving device, multiple water inlet pipes and multiple exit branch are set between water inlet supervisor and water outlet main pipe, and
Multiple heat exchanger tubes are connected between water inlet pipe and exit branch in parallel reasonable diffluence is carried out to water inlet, so as to be applied to
The boiler of big flow water inlet, in addition, heat exchanger tube is arranged by using the mode in the utility model, compact-sized reasonable, condensation
Device enclosure interior space waste is few, compared with the prior art, heat exchanger tube it is more, can further improve the recovery of heat
Utilization rate, so as to improve heat exchange efficiency, there is good using effect through practice.
Brief description of the drawings
Fig. 1 is the structural representation of the low energy-saving hot-water boiler of nitrogen in the utility model；
Fig. 2 is the right view of the low energy-saving hot-water boiler of nitrogen shown in Fig. 1；
Fig. 3 is the front view of condensing energy-saving device in the utility model；
Fig. 4 is the top view of condensing energy-saving device shown in Fig. 3；
Fig. 5 is the left view of condensing energy-saving device shown in Fig. 3.
Reference is shown in figure：1- tubular shells；2- flues；The heat exchanger tubes of 3- first；4- flue gas rotaries room；5- burns
Device；6- flame lances；7- stiffener plates；The bracing pieces of 8- first；The bracing pieces of 9- second；10- flue gas exteenal reflux pipelines；11- rear ends
Plate；12- front end-plates；13- flue gas exhausting pipe lines；14- square tube type housings；141- water legs；15- water inlet supervisors；16- water outlet masters
Pipe；The heat exchanger tubes of 17- second；The straight lengths of 171- first；The straight lengths of 172- second；The straight lengths of 173- the 3rd；The straight lengths of 174- the 4th；
175-U shape elbows；18- water inlet pipes；19- exit branch.
Embodiment
The concrete structure in the utility model is done with explanation with reference to Figure of description：
A kind of energy-saving hot-water boiler of low nitrogen, as shown in Figures 1 to 5, it includes tubular shell 1, flue 2, first exchanges heat
The axis direction of pipe 3 and flue gas rotary room 4 and burner 5, the axis direction of the flue 2 and first heat exchanger tube 3 is put down
OK, it is and in the same direction with the axis direction of the tubular shell 1, after the connection of flue gas rotary room 4 is arranged on the flue 2
End, the burner 5 are arranged on outside the front end of tubular shell 1, and the flame lance 6 of the burner 5 extends the flue 2
It is interior, and the flame lance 6 is coaxially set with the flue 2, first heat exchanger tube 3 connects with the flue gas rotary room 4；
Also include flue gas exteenal reflux pipeline 10, its one end connection flue gas exhausting pipe line 13 in the present embodiment, the other end connects the burning
The plenum system of device 5, the temperature sensor of detection flue-gas temperature is provided with the flue gas exteenal reflux pipeline 10, for accelerating
The smoking blower fan of flow of flue gas and the motor-operated control valve for controlling flue gas flow size；On the flue gas exhausting pipe line 13
Condensing energy-saving device is also serially connected with, condensing energy-saving device includes the square tube type shell 14 with exhaust gases passes, is arranged on the side
Water inlet supervisor 15 that the outside of tube-like envelope 14 is set in the same direction with the square tube type shell 14 and water outlet main pipe 16 and it is fixed on institute
Multiple second heat exchanger tubes 17 in square tube type shell 14 are stated, the water inlet supervisor 15 is with water outlet main pipe 16 outside the square tube type
The homonymy of shell 14 and it be arranged in parallel one on the other, described multiple second heat exchanger tubes 17 are according to the rectangle that line number is N, columns is M
Array arrangement, N and M are all higher than being equal to 2, and vertically arranged water inlet is provided between the water inlet supervisor 15 and water outlet main pipe 16
Branch pipe 18 and exit branch 19, the side end of the second heat exchanger tube of each column 17 are correspondingly arranged water inlet pipe 18 and an institute described in one
The exit branch 19 stated, one end of each water inlet pipe 18 are fixed and connected, the water inlet pipe with the water inlet supervisor 15
18 other end is fixed with the water outlet main pipe 16 but not connected, and one end of the exit branch 19 is solid with the water outlet main pipe 16
Fixed and connection, the other end of the exit branch 19 are fixed but not connected, each second heat exchanger tube with the water inlet supervisor 15
17 water inlet connects with water inlet pipe 18, and the delivery port of each second heat exchanger tube 17 connects with exit branch 19, described each
Second heat exchanger tube 17 is in roundabout bending, is distributed on the outer wall of second heat exchanger tube 17 and is provided with fin.Lead in the present embodiment
Cross and set up flue gas exteenal reflux pipeline, part exhaust can be returned in the plenum system of burner 5, so as to reduce mixing
Oxygen concentration in combustion gas, plays heat absorption body, does not cause ignition temperature in flue 2 to become too high, so as to further press down
The generation of thermal NO processed, be provided with the flue gas exteenal reflux pipeline 10 detection flue-gas temperature temperature sensor and
, so can real-time basis for driving the smoking blower fan of flow of flue gas and controlling the motor-operated control valve of flue gas flow size
It is required that the flow of backflow flue gas is adjusted.In addition by setting the condensing energy-saving device in the utility model, led in water inlet
Multiple water inlet pipes and multiple exit branch are set between pipe and water outlet main pipe, and with simultaneously between water inlet pipe and exit branch
The mode of connection connects multiple heat exchanger tubes and carries out reasonable diffluence to water inlet, so as to the boiler suitable for big flow water inlet, in addition, passing through
Arrange heat exchanger tube by the way of in the utility model, it is compact-sized rationally, condenser shell inner space waste it is few, it is and existing
Compared in technology, heat exchanger tube it is more, can further improve the recovery utilization rate of heat, so as to improve heat exchange efficiency, warp
Practice has good using effect.
In the present embodiment, the side perisporium of the flue 2 is bellows-like structure, can increase stove by using this structure
The outer wall surface product of courage 2, and then heat exchange area is added so that heat exchange efficiency is improved.
In above-mentioned technical proposal, first heat exchanger tube 3 is divided into two groups, and two group of first heat exchanger tube 3 is located at the phase of flue 2
To both sides, every group of first heat exchanger tube 3 includes more first heat exchanger tubes 3.
On the basis of above-described embodiment, in order to strengthen the intensity of boiler jacket, both ends top is set in the tubular shell 1
Have a reinforcement structure, the reinforcement structure include connecting the end plate 11 of the tubular shell 1 and the first bracing piece 8 of circumferential wall and
The front end-plate 12 of the tubular shell 1 and the second bracing piece 9 of circumferential wall are connected, multiple first bracing pieces 8 and multiple second add
Strong bar 9 is provided at circumferentially spaced along tubular shell 1.
In above-mentioned technical proposal, the length direction of each second heat exchanger tube 17 along horizontally disposed, and with exhaust gases passes
Flow of flue gas direction is vertical, and heat exchange occurs for cold water of the flue gas in the heat and the second heat exchanger tube 17 in flowing in flue gas, right
Water is preheated.
In the present embodiment, N is that 5~7, M is 4~6, preferably, N is 6, M 5.
In the present embodiment, each second heat exchanger tube 17 includes four spaced straight lengths, described four straight tubes
Section sequentially connects and composes the second described heat exchanger tube 17 by return bend 175, four straight lengths be respectively the first straight length 171,
Second straight length 172, the 3rd straight length 173 and the 4th straight length 174, first straight length 171 and the 3rd straight length
173 on first level face, and second straight length 172 is in the first level face not with the 4th straight length 174
With the second horizontal plane on, using said structure compact and reasonable, and good effect of heat exchange.
In above-mentioned technical proposal, water leg is provided with the lower section of second heat exchanger tube 17 inside the square tube type shell 14
141, the bottom of the water leg 141 is provided with and communicated with drainpipe.Using said structure, the condensed water that flue gas condensing runs into is collecting
Collect in tank and discharged in time by drainpipe.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.And these belong to the obvious changes or variations that connotation of the present utility model is extended out and still fall within this practicality
New protection domain.
Claims (8)
1. a kind of energy-saving hot-water boiler of low nitrogen, including tubular shell, flue, the first heat exchanger tube and the flue gas rotary laterally set
The axis direction of room and burner, the axis direction of the flue and first heat exchanger tube is parallel, and with the tubular
The axis direction of housing is in the same direction, and the flue gas rotary room connection is arranged on the rear end of the flue, and the burner is arranged on institute
State outside tubular shell front end, the flame lance of the burner is extended in the flue, and the flame lance and the stove
Courage is coaxially set, and first heat exchanger tube connects with the flue gas rotary room；It is characterized in that：Also include flue gas exteenal reflux pipe
Road, its one end connection flue gas exhausting pipe line, the other end connects the plenum system of the burner, in the flue gas exteenal reflux pipeline
On be provided with the detection temperature sensor of flue-gas temperature, the smoking blower fan for accelerating flow of flue gas and for controlling flue gas stream
Measure the motor-operated control valve of size；Condensing energy-saving device is also serially connected with the flue gas exhausting pipe line, condensing energy-saving device includes
Square tube type shell with exhaust gases passes, it is arranged on the square tube type housing exterior and enters with what the square tube type shell was set in the same direction
Water is responsible for be responsible for going out with water outlet main pipe and multiple second heat exchanger tubes being fixed in the square tube type shell, the water inlet
Water supervisor is located at the homonymy of the square tube type shell and be arranged in parallel one on the other, and described multiple second heat exchanger tubes are according to line number
The rectangular array arrangement for being M for N, columns, N and M are all higher than being equal to 2, are provided between the water inlet supervisor and water outlet main pipe
Vertically arranged water inlet pipe and exit branch, the second heat exchanger tube of each column side end be correspondingly arranged water inlet pipe described in one and
Exit branch described in one, one end of each water inlet pipe is fixed with the water inlet supervisor and connects, the water inlet pipe
The other end fix but do not connect with the water outlet main pipe, one end of the exit branch and the water outlet main pipe are fixed and even
Logical, the other end of the exit branch is fixed with the water inlet supervisor but does not connect, the water inlet of each second heat exchanger tube and
Water inlet pipe connects, and the delivery port of each second heat exchanger tube connects with exit branch, and each second heat exchanger tube is in roundabout curved
It is curved, it is distributed on the outer wall of second heat exchanger tube and is provided with fin.
2. the energy-saving hot-water boiler of low nitrogen according to claim 1, it is characterised in that the side perisporium of the flue is ripple
Tubular structure.
3. the energy-saving hot-water boiler of low nitrogen according to claim 1 or 2, it is characterised in that first heat exchanger tube is divided into
Two groups, two group of first heat exchanger tube is located at the flue opposite sides, and every group of first heat exchanger tube includes more first heat exchanger tubes.
4. the energy-saving hot-water boiler of low nitrogen according to claim 1 or 2, it is characterised in that both ends in the tubular shell
Top is provided with reinforcement structure, and the reinforcement structure includes connecting the end plate of the tubular shell and the first bracing piece of circumferential wall
With the front end-plate and the second bracing piece of circumferential wall for connecting the tubular shell, multiple first bracing pieces and multiple second bracing pieces
It is provided at circumferentially spaced along tubular shell.
5. the energy-saving hot-water boiler of low nitrogen according to claim 1, it is characterised in that the length of each second heat exchanger tube
Direction is along horizontally disposed and vertical with flow of flue gas direction in exhaust gases passes.
6. the energy-saving hot-water boiler of low nitrogen according to claim 1, it is characterised in that N is that 5~7, M is 4~6.
7. the energy-saving hot-water boiler of low nitrogen according to claim 1, it is characterised in that each second heat exchanger tube includes four
The spaced straight length of root, described four straight lengths sequentially connect and compose the second described heat exchanger tube by return bend, and four
Root straight length is respectively the first straight length, the second straight length, the 3rd straight length and the 4th straight length, first straight length and institute
State the 3rd straight length to be on first level face, second straight length is in the first level face with the 4th straight length
On the second different horizontal planes.
8. the energy-saving hot-water boiler of low nitrogen according to claim 1, it is characterised in that the square tube type enclosure is in institute
The lower section for stating the second heat exchanger tube is provided with water leg, and the bottom of the water leg is provided with and communicated with drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621916.8U CN206787057U (en) | 2017-05-31 | 2017-05-31 | The low energy-saving hot-water boiler of nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621916.8U CN206787057U (en) | 2017-05-31 | 2017-05-31 | The low energy-saving hot-water boiler of nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206787057U true CN206787057U (en) | 2017-12-22 |
Family
ID=60714826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720621916.8U Expired - Fee Related CN206787057U (en) | 2017-05-31 | 2017-05-31 | The low energy-saving hot-water boiler of nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206787057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014079A (en) * | 2017-05-31 | 2017-08-04 | 浙江特富锅炉有限公司 | The low energy-saving hot-water boiler of nitrogen |
| CN111829179A (en) * | 2020-07-16 | 2020-10-27 | 西安交通大学 | A single boiler-slice series-connected cast aluminum-silicon water heater coupled with premixed water-cooled combustion |
-
2017
- 2017-05-31 CN CN201720621916.8U patent/CN206787057U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014079A (en) * | 2017-05-31 | 2017-08-04 | 浙江特富锅炉有限公司 | The low energy-saving hot-water boiler of nitrogen |
| CN111829179A (en) * | 2020-07-16 | 2020-10-27 | 西安交通大学 | A single boiler-slice series-connected cast aluminum-silicon water heater coupled with premixed water-cooled combustion |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |