CN210891613U - Layer combustion boiler system - Google Patents
Layer combustion boiler system Download PDFInfo
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- CN210891613U CN210891613U CN201921835375.4U CN201921835375U CN210891613U CN 210891613 U CN210891613 U CN 210891613U CN 201921835375 U CN201921835375 U CN 201921835375U CN 210891613 U CN210891613 U CN 210891613U
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Abstract
The utility model relates to the technical field of boiler equipment, and discloses a layer combustion boiler system, which comprises a boiler body, a tail flue and an energy saver; the energy saver comprises a shell and a plurality of smoke pipes, wherein the smoke pipes are arranged in the shell, pipe plates are respectively arranged at two ends in the shell, two ends of each smoke pipe correspondingly penetrate through the pipe plates, the shell is serially connected and arranged behind an air preheater on the tail flue, and an inlet and an outlet are arranged on the side wall of the shell at intervals. The utility model provides a layer combustion boiler system, the energy saver is arranged on the tail flue to further recycle the waste heat of the tail flue gas at the low temperature section, the smoke discharging temperature of the boiler can be reduced, and the thermal efficiency of the boiler is improved; and the design flue gas of this energy-saving appliance flows through from the tobacco pipe, and heat transfer medium flows through from the tobacco pipe outside, can be convenient for connect the setting on the afterbody flue, and be convenient for heat transfer medium's smooth flow heat transfer, simple structure, convenient operation.
Description
Technical Field
The utility model relates to a boiler equipment technical field especially relates to a layer fires boiler system.
Background
China is a developing country taking coal as a main energy source, and the coal resource accounts for about 75% of the total energy production and consumption of China. The boiler in China mainly uses fire coal as a main part, the boiler is used as a heat absorption device, the exhaust gas temperature of the boiler is greatly related to the thermal efficiency of the boiler, the exhaust gas temperature is high, the thermal efficiency of the boiler is low, the exhaust gas temperature is low, and the thermal efficiency of the boiler is high. After the boiler structure is shaped, the structure is difficult to change, countless boiler designers want to increase the utilization of the heat of the flue gas at the tail part of the boiler, and currently, most of the boilers are coal economizers, waste heat boilers and air preheaters. However, the exhaust temperature of the boiler is still about 150-.
The existing coal-fired industrial boiler generally has the problem of low thermal efficiency.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a layer fires boiler system for solve or partially solve present used coal fired industrial boiler, the ubiquitous problem of low thermal efficiency.
(II) technical scheme
In order to solve the technical problem, the utility model provides a layer combustion boiler system, which comprises a boiler body, a tail flue and an energy saver; the energy saver comprises a shell and a plurality of smoke pipes, wherein the smoke pipes are arranged in the shell, pipe plates are respectively arranged at two ends in the shell, two ends of each smoke pipe correspondingly penetrate through the pipe plates, the shell is serially connected and arranged behind an air preheater on the tail flue, and an inlet and an outlet are arranged on the side wall of the shell at intervals.
On the basis of the scheme, the side wall of the smoke tube is integrally in a threaded structure; and two ends of the shell are respectively connected with a steering connector.
On the basis of the scheme, the side wall of the shell is provided with an access hole and a support.
On the basis of the scheme, the boiler body comprises a vertically-installed main hearth, an auxiliary hearth and a convection channel are sequentially arranged at the rear part of the main hearth side by side, the top end of the main hearth is communicated with the top end of the auxiliary hearth, the bottom end of the auxiliary hearth is communicated with the bottom end of the convection channel, and the top end of the convection channel is communicated with a tail flue.
On the basis of the scheme, the fire grate is arranged at the bottom of the main hearth, the bottom of the main hearth covers the fire grate, the cross-sectional areas of the middle part and the top of the main hearth are smaller than that of the bottom of the main hearth, the auxiliary hearth is bent, and a switching part is arranged between the bottom end of the auxiliary hearth and the bottom end of the convection channel.
On the basis of the scheme, the method further comprises the following steps: a flue gas recirculation device; the flue gas recirculation device is communicated with the interior of the main furnace and the tail end of the tail flue and used for introducing the flue gas at the tail end of the tail flue into the interior of the main furnace.
On the basis of the scheme, the smoke recycling device comprises a smoke recycling main air pipe, the tail end of the tail flue is provided with a smoke taking port, the smoke taking port is connected with the smoke recycling main air pipe, and the smoke recycling main air pipe is arranged on one side, close to the tail, of the fire grate.
On the basis of the scheme, the flue gas recirculation main air pipe is arranged in parallel with the upper surface of the fire grate along the width direction of the fire grate, the flue gas recirculation main air pipe is vertically connected with a plurality of nozzles, and outlets of the nozzles are arranged downwards.
On the basis of the scheme, a plurality of nozzles are uniformly arranged along the width direction of the fire grate; the smoke taking port is arranged between the air preheater and the energy saver.
On the basis of the scheme, the flue gas recirculation main air pipe is arranged inside the auxiliary hearth, and the nozzle penetrates through the side wall of the auxiliary hearth and is inserted into the main hearth; and two ends of the flue gas recirculation main air pipe respectively penetrate out of the hearth to be connected with the two smoke taking ports in a one-to-one correspondence manner.
(III) advantageous effects
The utility model provides a layer combustion boiler system, the energy saver is arranged on the tail flue to further recycle the waste heat of the tail flue gas at the low temperature section, the smoke discharging temperature of the boiler can be reduced, and the thermal efficiency of the boiler is improved; and the design flue gas of this energy-saving appliance flows through from the tobacco pipe, and heat transfer medium flows through from the tobacco pipe outside, can be convenient for connect the setting on the afterbody flue, and be convenient for heat transfer medium's smooth flow heat transfer, simple structure, convenient operation.
Drawings
Fig. 1 is an overall schematic view of a layer combustion boiler system according to an embodiment of the present invention;
fig. 2 is an overall schematic view of a chain boiler system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an energy saver in an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of an energy saver in an embodiment of the present invention;
fig. 5 is a schematic top view of a layer combustion boiler system according to an embodiment of the present invention;
FIG. 6 is a schematic view of the flue gas recirculation main duct in the embodiment of the present invention;
fig. 7 is a schematic view of a nozzle according to an embodiment of the present invention.
Description of reference numerals:
1-a drum; 2-main furnace chamber; 3, a grate;
4, an auxiliary hearth; 5-convection heating surface; 6-tail flue;
7-a coal economizer; 8-air preheater; 9-a draught fan;
10-a desulfurization unit; 11-flue gas recirculation equipment; 12-a convection channel;
13-an economizer; 14-a switching part; 111-flue gas recirculation main air duct;
112-a nozzle; 131-a steering connector; 132-a support;
133-a tube sheet; 134-smoke tube; 135-a shell;
136-an inlet; 137-outlet; 138-manhole.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a layer combustion boiler system, refer to fig. 1 and fig. 3, this boiler system includes boiler body and afterbody flue 6, still includes economizer 13; the economizer 13 comprises a housing 135 and a plurality of smoke tubes 134, wherein the smoke tubes 134 are arranged inside the housing 135, tube plates 133 are respectively arranged at two ends inside the housing 135, referring to fig. 4, two ends of the smoke tubes 134 correspondingly penetrate through the tube plates 133, the housing 135 is serially connected behind the air preheater 8 on the tail flue 6, and an inlet 136 and an outlet 137 are arranged on the side wall of the housing 135 at intervals.
The boiler system is provided with an economizer 13 on a tail flue 6 to further recycle the heat of the tail flue gas of the low-temperature section. The economizer 13 is of a shell-and-tube configuration, with the flue gas passing through the tube side and a heat exchange medium, such as water, passing through the shell side. The smoke of the tail flue 6 enters the smoke tube 134 from one end of the shell 135 and flows out from the other end of the shell 135; the heat exchange medium enters from an inlet 136 in the side wall of the housing 135 and flows out from an outlet 137 after having undergone heat convection with the flue gas. The hot water obtained from the economizer 13 can be introduced into the boiler body as a heat absorbing medium to be changed into hot water or steam for life or production.
According to the layer combustion boiler system provided by the embodiment, the energy saver is arranged on the tail flue to further recycle the waste heat of the tail flue gas at the low-temperature section, so that the exhaust gas temperature of the boiler can be reduced, and the thermal efficiency of the boiler is improved; and the design flue gas of this energy-saving appliance flows through from the tobacco pipe, and heat transfer medium flows through from the tobacco pipe outside, can be convenient for connect the setting on the afterbody flue, and be convenient for heat transfer medium's smooth flow heat transfer, simple structure, convenient operation.
Further, the housing 135 and the flue tube 134 of the economizer 13 may be made of a corrosion-resistant material, such as ND steel or stainless steel.
Further, the side wall of the smoke tube 134 is integrally formed with a screw thread structure. Namely, the inner side and the outer side of the smoke tube 134 are both concave-convex structures, so that the collision between the smoke and the heat exchange medium and the smoke tube can be increased to form turbulent flow, and the heat exchange speed and efficiency are increased. The two ends of the housing 135 are respectively connected with a steering connector 131. Facilitating the connection with the back pass 6.
Further, a service hole 138 and a support 132 are provided on a sidewall of the housing 135. The manhole 138 is used for inspection. The bracket 132 is used for mounting and fixing the economizer 13.
Further, the boiler body includes the main furnace 2 of vertical installation, and the rear portion of main furnace 2 is equipped with vice furnace 4 and convection current passageway 12 side by side in proper order, and the top of main furnace 2 is linked together with the top of vice furnace 4, and the bottom of vice furnace 4 is linked together with the bottom of convection current passageway 12, and the top of convection current passageway 12 is linked together with afterbody flue 6.
The rear part of the main hearth 2 is the rear side in the flow direction of the flue gas, i.e. the part to which the flue gas flows backwards. The auxiliary furnace 4 and the convection channel 12 are also vertically arranged and are connected with the main furnace 2 in sequence side by side. The layer combustion boiler is additionally provided with an auxiliary hearth 4 and a convection channel 12 at the rear side of a main hearth 2. Flue gas generated by combustion of fuel inside the main furnace 2 flows into the auxiliary furnace 4 through a top outlet, then flows from the top to the bottom of the auxiliary furnace 4 into the convection channel 12, and then flows into the tail flue 6.
According to the layer combustion boiler structure, the auxiliary hearth 4 and the convection channel 12 are sequentially arranged behind the main hearth 2 side by side, the top of the main hearth 2 is communicated with the auxiliary hearth 4, and the bottom of the auxiliary hearth 4 is communicated with the convection channel 12, so that the main hearth 2, the auxiliary hearth 4 and the convection channel 12 form an S-shaped three-return-stroke flue gas channel, the flow distance of flue gas can be effectively increased, the combustion time of fuel, namely pulverized coal, in a boiler is increased, and the combustion efficiency is improved; the products which are not fully combusted in the flue gas are reduced, the emission of sulfur oxides and nitrogen oxides is reduced, the environmental protection investment is reduced, and the economical efficiency is improved.
Furthermore, membrane type water-cooled walls are attached to the peripheral side walls of the main hearth 2 and the auxiliary hearth 4; the side wall of the convection channel 12 is also provided with a membrane water-cooling wall, and a convection heating surface 5 is arranged in the convection channel 12 to improve the use efficiency of heat. The membrane water-cooled wall is communicated with a downcomer which is connected with the boiler barrel 1.
On the basis of the above embodiment, further, the bottom of the main furnace 2 is provided with the fire grate 3, the bottom of the main furnace 2 covers the fire grate 3, the cross-sectional areas of the middle part and the top of the main furnace 2 are smaller than the cross-sectional area of the bottom, the auxiliary furnace 4 is bent, and the adapter part 14 is arranged between the bottom end of the auxiliary furnace 4 and the bottom end of the convection channel 12.
That is, the fire grate 3 is completely positioned in the main hearth 2, the fire grate 3 has an unchanged structure compared with the original single hearth, the cross sections of the middle part and the top part of the main hearth 2 are reduced so as to reduce the occupied width of the main hearth 2, and the auxiliary hearth 4 and the convection passage 12 are arranged side by side.
The auxiliary hearth 4 and the convection channel 12 are arranged side by side with the top and the middle of the main hearth 2, and the bottom of the auxiliary hearth 4 can be bent to enable the outlet to face one side above the fire grate 3; the convection channel 12 can be arranged with the auxiliary hearth 4 at the top and the middle part, and the bottom can be bent to enable the outlet to face to one side; the outlet at the bottom of the convection channel 12 can be located above the outlet at the bottom of the secondary hearth 4. In order to facilitate the communication between the bottom of the auxiliary hearth 4 and the bottom of the convection channel 12, a switching part can be arranged to be respectively communicated with the two, and the flue gas turns at the switching part 14 and flows into the convection channel 12.
The structure of the arrangement structure can reduce the structural change of the existing boiler grate 3, the auxiliary hearth 4 and the convection channel 12 can be additionally arranged on the basis of the arrangement of the existing grate 3, the combustion efficiency can be improved on the basis of the original fuel combustion amount, and the pollutant emission can be reduced.
Further, the bottom and middle of the main hearth 2 may be bent.
This layer natural boiler structure still includes: a flue gas recirculation device 11; the flue gas recirculation device 11 is communicated with the inside of the main hearth 2 and the tail end of the tail flue 6 and is used for introducing the flue gas at the tail end of the tail flue 6 into the main hearth 2. The starting end of the tail flue 6 is connected with the outlet of the hearth. The end of the back pass 6, i.e. the part through which the flue gas flows, is closer to the end of the back pass 6, the lower the temperature of the flue gas.
According to the boiler structure provided by the embodiment, part of flue gas is taken from the tail end of the tail flue 6 and is sent into the main hearth 2, so that the combustion temperature of a combustion area in the main hearth 2 can be reduced, and the generation of nitrogen oxides is reduced; the requirement of the emission of nitrogen oxides in environment protection is met, the investment of environment-friendly equipment and the operating cost of the environment-friendly equipment are reduced, and better economic benefit and social benefit are achieved; and the flue gas is introduced into the main hearth 2 again, thereby being beneficial to the full and complete combustion of the fuel, further improving the heat utilization rate and improving the heat efficiency.
On the basis of the above embodiment, further, referring to fig. 5, the flue gas recirculation device 11 includes a flue gas recirculation main air duct 111, the end of the tail flue 6 is provided with a flue gas taking port, the flue gas taking port is connected to the flue gas recirculation main air duct 111, and the flue gas recirculation main air duct 111 is disposed on one side of the fire grate 3 close to the tail.
The smoke taking port can be arranged on the side wall at the tail end of the tail flue 6 and used for leading out smoke. The flue gas recirculation main air pipe 111 is used for guiding the flue gas taken out from the flue gas taking port to one side of the fire grate 3 close to the tail part. The flue gas can contact with the ash at the tail part of the fire grate 3, thereby reducing the temperature of the ash, reducing the heat loss of the ash and improving the boiler efficiency.
On the basis of the above embodiment, further, the flue gas recirculation main duct 111 is arranged in parallel with the upper surface of the grate 3 along the width direction of the grate 3. The main flue gas recirculation air pipe 111 is arranged along the width direction of the fire grate 3, so that the recirculated flue gas is distributed in the width direction of the fire grate 3, namely, the recirculated flue gas is positioned on one side of the fire grate 3 close to the tail part, and the temperature of ash slag at the tail part is convenient to reduce.
Referring to fig. 6 and 7, a plurality of nozzles 112 are vertically connected to the flue gas recirculation main duct 111, and outlets of the nozzles 112 are disposed downward. I.e. the nozzles 112 spray the recirculating flue gas towards the grate 3 above the grate 3. Further, the outlet of the nozzle 112 should be located in the main combustion zone inside the main furnace 2; so as to effectively reduce the combustion temperature and reduce the generation of nitrogen oxides.
On the basis of the above embodiment, further, a plurality of nozzles 112 are uniformly arranged along the width direction of the grate 3; the temperature of the main combustion area in the main hearth 2 and the temperature of the ash can be uniformly reduced, so that the denitration effect is improved, the heat loss of the ash is fully reduced, and the heat efficiency is improved. The distance between the flue gas recirculation main air pipe 111 and the tail part of the fire grate 3 is 450 mm and 550 mm. So that the flue gas recirculation main air pipe 111 corresponds to the position of ash on the fire grate 3. Further, the smoke extraction port is arranged between the air preheater 8 and the economizer 13.
On the basis of the above embodiment, further, the flue gas recirculation main duct 111 is arranged inside the auxiliary furnace 4, and the nozzle 112 penetrates through the side wall of the auxiliary furnace 4 and is inserted into the main furnace 2; two ends of the flue gas recirculation main air pipe 111 respectively penetrate out of the hearth to be connected with the two smoke taking ports in a one-to-one correspondence manner. Because the main furnace 2 is bent, the sectional area of the middle part is smaller than that of the bottom part, so that the space of the main furnace 2 corresponding to the upper part of the tail part of the fire grate 3 is smaller, the flue gas recirculation main air pipe 111 can be arranged in the auxiliary furnace 4, and the nozzle 112 can penetrate through the membrane water-cooled wall between the main furnace 2 and the auxiliary furnace 4.
Smoke taking ports can be respectively arranged on two opposite sides of the tail end of the tail flue 6, so that two ends of the smoke recycling main air pipe 111 are connected with the two smoke taking ports in a one-to-one correspondence mode, the smoke recycling main air pipe 111 can be conveniently and fixedly installed, and the recycled smoke can be uniformly fed above the grate 3. Further, an induced draft fan can be arranged on a connecting pipeline between the flue gas recirculation main air pipe 111 and the flue gas taking port to provide conveying power for the recirculated flue gas.
On the basis of the above embodiment, further, the convection heating surface 5 is arranged inside the convection channel 12, the economizer 7 and the air preheater 8 are sequentially arranged on the tail flue 6 along the flow direction of flue gas, the tail flue 6 is connected with the induced draft fan 9 at the rear part of the air preheater 8, and the induced draft fan 9 is sequentially connected with the economizer 13 and the desulfurization device 10.
On the basis of the foregoing embodiments, further, the present embodiment provides a boiler denitration method based on the grate-fired boiler structure according to any one of the foregoing embodiments, including: drawing the recirculated flue gas from the end of the back pass 6; the recirculated flue gas is introduced into the main furnace 2 and above the rear part of the grate 3.
On the basis of the embodiment, the temperature of the extracted recirculation smoke is less than or equal to 150 ℃; the proportion of the recycled flue gas in the total flue gas is 15-25%; the flow velocity of the recirculated flue gas into the main furnace 2 is 25-35 m/s.
Specifically, a smoke taking port is arranged between the outlet of the induced draft fan 9 and the desulphurization device 10, the temperature of the smoke is lower than 150 ℃, and the smoke is taken to be sent to a smoke recirculation device 11 above the rear part of the grate 3. The flue gas recirculation main air pipe 111 and the flue gas recirculation nozzle 112 are arranged at the tail part of the rear arch, are vertically arranged downwards and are about 500mm away from the tail part of the fire grate 3, and the cooling of slag is required to be ensured.
The maximum flue gas circulation amount is about 20 percent of the total flue gas amount. In actual operation, the frequency conversion fan can be used for adjusting the amount of the recycled flue gas so as to obtain the best effect. The size and the number of the inner openings of the flue gas recirculation nozzle 112 are selected according to the flue gas quantity, the flue gas velocity in the flue gas recirculation nozzle 112 is about 30m/s, and the rear arches are uniformly distributed as much as possible during arrangement. Welding is adopted between the flue gas recirculation main air pipe 111 and the flue gas recirculation nozzle 112, and flat steel of the membrane wall corresponding to the flue gas recirculation nozzle 112 is perforated according to the size of the flue gas recirculation nozzle 112.
According to the layer combustion boiler structure and the boiler denitration method, part of flue gas is taken from the tail part of the boiler and is sent to the rear part of the fire grate 3, so that the combustion temperature of a main combustion area on the fire grate 3 is reduced, and the generation of nitrogen oxides is reduced. The problems of low thermal efficiency and high emission of nitrogen oxides of the grate-fired industrial boiler are solved, and the treatment intensity of pollutants (nitrogen oxides) of the grate-fired boiler can be reduced; the ash temperature is reduced, the heat loss of ash is reduced, and the boiler efficiency is improved; the combustion temperature of flame in the hearth is reduced, and the generation of nitrogen oxides is reduced; the method meets the requirement of environment-friendly emission of nitrogen oxides, reduces the investment of environment-friendly equipment and the operating cost of the environment-friendly equipment, and has better economic benefit and social benefit.
On the basis of the above embodiments, further, referring to fig. 2, the boiler structure and the denitration method described in the above embodiments are also applicable to a chain boiler, and the specific structural arrangement and operation method of the chain boiler are similar to those of the above grate firing boiler, and are not described again.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A layer combustion boiler system comprises a boiler body and a tail flue, and is characterized by also comprising an energy saver; the energy saver comprises a shell and a plurality of smoke pipes, wherein the smoke pipes are arranged in the shell, pipe plates are respectively arranged at two ends in the shell, two ends of each smoke pipe correspondingly penetrate through the pipe plates, the shell is serially connected and arranged behind an air preheater on the tail flue, and an inlet and an outlet are arranged on the side wall of the shell at intervals.
2. The grate-fired boiler system of claim 1, wherein the side walls of the flue tubes are integrally threaded; and two ends of the shell are respectively connected with a steering connector.
3. The grate-fired boiler system of claim 1, wherein the side walls of the housing are provided with manholes and standoffs.
4. The grate-firing boiler system according to claim 1, wherein the boiler body comprises a vertically-installed main furnace, an auxiliary furnace and a convection channel are sequentially arranged at the rear part of the main furnace side by side, the top end of the main furnace is communicated with the top end of the auxiliary furnace, the bottom end of the auxiliary furnace is communicated with the bottom end of the convection channel, and the top end of the convection channel is communicated with a tail flue.
5. The grate firing boiler system of claim 4, wherein the bottom of the main furnace is provided with a grate, the bottom of the main furnace covers the grate, the cross-sectional area of the middle part and the top of the main furnace is smaller than that of the bottom of the main furnace, the auxiliary furnace is bent, and an adapter part is arranged between the bottom end of the auxiliary furnace and the bottom end of the convection passage.
6. The grate-fired boiler system of claim 4, further comprising: a flue gas recirculation device; the flue gas recirculation device is communicated with the interior of the main furnace and the tail end of the tail flue and used for introducing the flue gas at the tail end of the tail flue into the interior of the main furnace.
7. The grate firing boiler system according to claim 6, wherein the flue gas recirculation device comprises a flue gas recirculation main air pipe, a flue gas taking port is arranged at the tail end of the tail flue, the flue gas taking port is connected with the flue gas recirculation main air pipe, and the flue gas recirculation main air pipe is arranged at one side of the grate close to the tail.
8. The grate firing boiler system of claim 7, wherein the flue gas recirculation main duct is arranged parallel to the upper surface of the grate along the width direction of the grate, the flue gas recirculation main duct is vertically connected with a plurality of nozzles, and outlets of the nozzles are arranged downward.
9. The grate fired boiler system of claim 8, wherein a plurality of nozzles are uniformly arranged along the width direction of the grate; the smoke taking port is arranged between the air preheater and the energy saver.
10. The grate-firing boiler system according to claim 8, wherein the flue gas recirculation main duct is disposed inside the secondary furnace, and the nozzles are inserted into the main furnace through a side wall of the secondary furnace; and two ends of the flue gas recirculation main air pipe respectively penetrate out of the hearth to be connected with the two smoke taking ports in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921835375.4U CN210891613U (en) | 2019-10-29 | 2019-10-29 | Layer combustion boiler system |
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|---|---|---|---|
| CN201921835375.4U CN210891613U (en) | 2019-10-29 | 2019-10-29 | Layer combustion boiler system |
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| CN210891613U true CN210891613U (en) | 2020-06-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734232A (en) * | 2023-06-16 | 2023-09-12 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane wall biomass steam boiler system and temperature regulation and control method thereof |
| CN116734233A (en) * | 2023-06-16 | 2023-09-12 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane type wall hearth structure of biomass steam boiler |
-
2019
- 2019-10-29 CN CN201921835375.4U patent/CN210891613U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734232A (en) * | 2023-06-16 | 2023-09-12 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane wall biomass steam boiler system and temperature regulation and control method thereof |
| CN116734233A (en) * | 2023-06-16 | 2023-09-12 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane type wall hearth structure of biomass steam boiler |
| CN116734232B (en) * | 2023-06-16 | 2024-03-19 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane wall biomass steam boiler system and temperature regulation and control method thereof |
| CN116734233B (en) * | 2023-06-16 | 2024-06-11 | 武汉光谷蓝焰新能源股份有限公司 | Three-return-stroke membrane type wall hearth structure of biomass steam boiler |
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