CN206338929U - Energy-saving environmental protection boiler - Google Patents
Energy-saving environmental protection boiler Download PDFInfo
- Publication number
- CN206338929U CN206338929U CN201621360738.XU CN201621360738U CN206338929U CN 206338929 U CN206338929 U CN 206338929U CN 201621360738 U CN201621360738 U CN 201621360738U CN 206338929 U CN206338929 U CN 206338929U
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- Prior art keywords
- energy
- exchanging chamber
- heat exchanging
- environmental protection
- saving environmental
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Abstract
The utility model provides a kind of energy-saving environmental protection boiler, including shell and burner hearth, and water tank is formed between the bore wall and shell of burner hearth；It is divided into burner hearth by the first setting dividing plate in combustion chamber and heat exchanging chamber, heat exchanging chamber and left heat exchanging chamber and right heat exchanging chamber is divided into by the second setting dividing plate；By the left heat transfer flue and right heat transfer flue of the horizontal heat exchanger plates two S types of formation of the polylith that is staggered in left heat exchanging chamber and right heat exchanging chamber, and the top connection of two flues；First setting dividing plate, the second setting dividing plate and heat exchanger plates are hollow sandwich plate, and heat exchanger plates are connected with water tank；Combustion chamber is connected with the lower end of heat exchanging chamber；The bottom of right heat exchanging chamber is provided with the first smoke exhaust pipe, first smoke exhaust pipe is connected by dust cleaning case with flue collector.By setting heat exchanging chamber, the fuel in flue gas is further burnt in heat transfer flue, can not only improve efficiency of combustion, the utilization rate of heat energy can also be improved；Simultaneously can be with the harmful substance in purifying smoke, energy-conserving and environment-protective are practical.
Description
Technical field
The utility model is related to boiler plant, and in particular to a kind of energy-saving environmental protection boiler.
Background technology
Boiler is a kind of energy conversion, and fuel, high-temperature water of the output with certain heat energy, boiler are put into boiler
The hot water of middle generation can directly for needed for being provided industrial production and people's lives heat energy, be widely used in daily life
In.
Conventional boiler it is relatively simple for structure, the flow of the high-temperature flue gas of fuel combustion in the boiler is very short, only one
Heat energy is divided to be absorbed, most heat energy are directly discharged in air, and heat utilization rate is only 40 or so percent.And
And existing boiler oil is usually coal or coal gas, combustion efficiency is poor, and fuel combustion is insufficient, can produce with a large amount of ashes
The black smoke of dirt, sulfur dioxide, can not only waste fuel, and serious pollution can be caused to air.
In the market also occurs in that some environment-protection boilers, by extending the combustion flue of burner hearth, can improve the burning of fuel
Efficiency, can make the utilization rate of heat energy reach 60 or so percent, but still have more heat to be wasted, and in flue gas
Harmful substance is not efficiently treated.
Utility model content
For defect of the prior art, the utility model provides a kind of energy-saving environmental protection boiler, by being set in burner hearth
Heat exchanging chamber is put, the flow of high-temperature flue gas in the boiler is added, the fuel in flue gas is further burnt, can not only improve combustion
The efficiency of combustion of material, while increasing the contact area of high-temperature flue gas and boiler water tank, improves the utilization ratio of heat energy, can be with
Heat utilization rate is set to reach more than 80 percent；And dust cleaning case is also provided with smoke exhaust pipe, can having with purifying smoke
Evil material, global design is simple in construction, practical.
A kind of energy-saving environmental protection boiler, including shell and burner hearth, water tank is formed between the bore wall and shell of burner hearth；The stove
It is divided into thorax by the first setting dividing plate in combustion chamber and heat exchanging chamber, the heat exchanging chamber and left heat exchange is divided into by the second setting dividing plate
Chamber and right heat exchanging chamber；In the left heat exchanging chamber and the right heat exchanging chamber two are formed by the horizontal heat exchanger plates of polylith that are staggered
The left heat transfer flue and right heat transfer flue of individual S types；Left heat transfer flue and right heat transfer flue erect dividing plate mirror image pair along described second
Claim, and left heat transfer flue is connected with the top of right heat transfer flue；The first setting dividing plate, described second erect dividing plate and described
The heat exchanger plates that heat exchanger plates are in hollow sandwich plate, left heat transfer flue close to left side pass through the described first setting dividing plate and the water
Case is communicated, and the heat exchanger plates in left heat transfer flue close to left side in the heat exchanger plates and right heat transfer flue on right side pass through described second
Erect dividing plate to communicate with the water tank, the heat exchanger plates in right heat transfer flue close to right side are directly connected with the water tank；Combustion chamber
Connected with the lower end of heat exchanging chamber；Combustion chamber is connected with the lower end of heat exchanging chamber；The bottom of the right heat exchanging chamber is provided with first row
Smoke pipe, first smoke exhaust pipe is connected by dust cleaning case with flue collector, and charge door is additionally provided with the cavity wall of the combustion chamber, is matched somebody with somebody
Air port and the second smoke exhaust pipe, second smoke exhaust pipe are directly connected with the flue collector；It is additionally provided with back on the water tank
The mouth of a river and delivery port.
Charge door, air distribution outlet and the second smoke exhaust pipe in said structure are arranged on shell, and through water tank with firing
Burn chamber connection；Charge door is used to add fuel into combustion chamber, it is ensured that the origin of heat of boiler；Air distribution outlet is used to provide fuel combustion
The air needed is burnt, the high-temperature flue gas after fuel combustion enters left heat exchanging chamber, left heat exchanging chamber and right heat exchange under the promotion of wind-force
The top connection of chamber；The granular fuel carried in high-temperature flue gas further burns in left heat exchanging chamber and right heat exchanging chamber, while high
The warm abundant contact heat-exchanging of flue gas and water tank；The temperature of left heat exchanging chamber and the high-temperature flue gas in right heat exchanging chamber is up to 1500 degrees Celsius of left sides
The right side, high-temperature flue gas temperature after left heat exchanging chamber, right heat exchanging chamber and dust cleaning case can be down to 80 degrees centigrades；Air-introduced machine is used for will
The high-temperature flue gas discharged from right heat exchanging chamber is attracted to the first smoke exhaust pipe.
The job step of above-mentioned energy-saving environmental protection boiler is as follows：Fuel is added from charge door, is lighted a fire in combustion chamber, simultaneously
Air distribution outlet provides wind, and flue gas now is excluded through the second smoke exhaust pipe from smoke exhaust pipe；After fuel combustion, the high temperature in combustion chamber leads to
Furnace wall is crossed to the water heat supply in water tank；Under the cooperation of air distribution outlet and air-vent, the high-temperature flue gas after fuel combustion, through left heat exchange
Dust cleaning case is discharged to from the first smoke exhaust pipe after chamber and right heat exchanging chamber, dust cleaning case will will be located after dust remaining in flue gas further cleaning
Flue gas after reason is discharged from smoke exhaust pipe；Circulating pump is circumscribed between water return outlet and delivery port, can delivery port and circulating pump it
Between tap is set, hot water can be obtained from tap, circulating pump by water from water return outlet input the energy-saving environmental protection boiler carry out
Circulation.
Further, in energy-saving environmental protection boiler described above, grate is provided with the combustion chamber, in the burning
Breast hole and cleaning door are additionally provided with the cavity wall of chamber, the breast hole is located at the upper end of grate, and the cleaning door is located at road and bridge
Lower end.
Breast hole and cleaning door in said structure are arranged on shell, and are connected through water tank with combustion chamber；Scarfing cinder
Mouth is used for the burning dregs of larger particles in clearing furnace, and cleaning door is used to leave after filtering through fire bars after burning in clearing furnace
Dust.
Further, in energy-saving environmental protection boiler described above, the grate is made up of many fire bars be arrangeding in parallel,
The fire bars is tubular structure, and the two ends of fire bars are communicated with the water tank respectively.
Fire bars two ends in said structure are opening, are connected with water tank, in the energy-saving environmental protection boiler course of work, water
Water in case can flow through by fire bars；Fire bars can also filter larger fuel particle, convenient to be cleared up from breast hole.
Further, in energy-saving environmental protection boiler described above, the position of the correspondence fire bars is provided with the shell
Scaling hole for clearing up dirt.
Scaling hole in said structure is identical with the shape of the fire bars, is tubular structure.
Further, in energy-saving environmental protection boiler described above, air-introduced machine is provided with first smoke exhaust pipe.Air inducing
Machine and gas-distributing fan are used cooperatively so that in combustion chamber after left heat transfer flue and right heat transfer flue of the flue gas of fuel combustion through S types
From the discharge of the first smoke exhaust pipe.
Further, in energy-saving environmental protection boiler described above, dust removal door is provided with the cavity wall of the heat exchanging chamber.Remove
Dirt door is provided with four fans, wherein, two fans of left side vertical distribution are arranged on the position of the left heat exchanging chamber of shell correspondence, left side vertical point
Two fans of cloth are arranged on the position of the right heat exchanging chamber of shell correspondence, are mainly used in clearing up the dust that heater plate surface leaves.
Further, in energy-saving environmental protection boiler described above, the dust removal door is with the shell by way of being hinged
Connection.
Further, in energy-saving environmental protection boiler described above, also including water supply tank, the water supply tank is arranged on the environmental protection
The top of power economized boiler, and be connected through shell with water tank.
Further, in energy-saving environmental protection boiler described above, the dust cleaning case is water dust cleaning case.Water dust cleaning case not only may be used
To absorb the dust in flue gas, while the harm gas such as sulfur dioxide in flue gas can also be absorbed, environmental protection can be played
Effect.
Further, in energy-saving environmental protection boiler described above, also including stove seat, stove seat is arranged on the shell bottom
Portion.
Air distribution outlet in said structure is arranged on the position close to top on the left of shell, and passes through water tank and the combustion bin
Connection；The water inlet and water return outlet are arranged on the left side of shell, and are connected through shell with water tank；The water inlet is arranged on
Close to the position of top left side on the left of shell, the water return outlet is arranged on close to the position of bottom right on the left of shell, in shell
Left surface, water return outlet it is parallel with water inlet distribution.
The new beneficial effect of the utility model：
The utility model provides a kind of energy-saving environmental protection boiler, including shell and burner hearth, burner hearth bore wall and shell it
Between form water tank；It is divided into burner hearth by the first setting dividing plate in combustion chamber and heat exchanging chamber, heat exchanging chamber and erects dividing plate by second
It is divided into left heat exchanging chamber and right heat exchanging chamber；Formed in left heat exchanging chamber and right heat exchanging chamber by the horizontal heat exchanger plates of polylith that are staggered
The left heat transfer flue and right heat transfer flue of two S types, and the top connection of two flues；First erects dividing plate, the second setting dividing plate
Hollow sandwich plate is with heat exchanger plates, and heat exchanger plates are connected with water tank；Combustion chamber is connected with the lower end of heat exchanging chamber；In right heat exchange
The bottom of chamber is provided with the first smoke exhaust pipe, and first smoke exhaust pipe is connected by dust cleaning case with flue collector.Environmental protection, energy saving pot furnaceman
When making, during fuel combustion, in the presence of air distribution outlet mouthful and air-introduced machine, the high-temperature flue gas after being burnt in combustion chamber passes through left heat exchange
After chamber and right heat exchanging chamber dust cleaning case is discharged to from the first smoke exhaust pipe；In left heat exchanging chamber and right heat exchanging chamber, the fuel in flue gas enters one
Step burning, can not only improve efficiency of combustion, can also improve the utilization ratio of heat energy, heat utilization rate is reached 8 percent
More than ten；Dust cleaning case can be with the harmful substance in purifying smoke, energy-conserving and environment-protective simultaneously；Global design is simple in construction, practical.
Brief description of the drawings
Fig. 1 is the main view profile of the utility model energy-saving environmental protection boiler；
Fig. 2 is the first main structure diagram of the utility model energy-saving environmental protection boiler；
Fig. 3 is the second main structure diagram of the utility model energy-saving environmental protection boiler；
Fig. 4 is the left side sectional view of the utility model energy-saving environmental protection boiler.
Reference：
1- shells；2- burner hearths；3- water tanks；5- smoke exhaust pipes；6- air-introduced machines；7- dust cleaning cases；8- water supply tanks；9- heat transfer flues
11- scaling holes；12- stoves seat；21- combustion chambers；22- heat exchanging chambers；31- delivery ports；32- water return outlets；41- first is erect
Dividing plate；42- second erects dividing plate；The smoke exhaust pipes of 51- first；The smoke exhaust pipes of 52- second；91 left heat transfer flues；The right heat transfer flues of 92-
211- charge doors；212- air distribution outlets；213- fire bars；214- breast holes；215- cleaning doors；216- dust removal doors；221-
Left heat exchanging chamber；The right heat exchanging chambers of 222-；223- heat exchanger plates
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is intended only as, and this reality can not be limited with this
With new protection domain.
Embodiment：
1~Fig. 4 of reference picture, a kind of energy-saving environmental protection boiler, including shell 1, burner hearth 2, water tank 3, smoke exhaust pipe 5, air-introduced machine 6,
Dust cleaning case 7, water supply tank 8, heat transfer flue 9, scaling hole 11, stove seat 12, combustion chamber 21, heat exchanging chamber 22, delivery port 31, water return outlet
32nd, the first setting setting of dividing plate 41, second dividing plate 42, the first smoke exhaust pipe 51, the second smoke exhaust pipe 52, left heat transfer flue 91, the right side are changed
Heating flue 92, charge door 211, air distribution outlet 212, fire bars 213, breast hole 214, cleaning door 215, dust removal door 216, left heat exchanging chamber
221st, right heat exchanging chamber 222, heat exchanger plates 223.
The water tank 3 of closing to be filled by the interlayer between burner hearth 2 and shell 1 constituted after water；Burner hearth 2 erects dividing plate 41 by first
Combustion chamber 21 and heat exchanging chamber 22 are formed after isolation；Heat exchanging chamber 22 includes left heat exchanging chamber 221 and right heat exchanging chamber 222；Smoke exhaust pipe 5 includes
First smoke exhaust pipe 51 and the second smoke exhaust pipe 52, the smoke inlet of the first smoke exhaust pipe 51 are arranged on the right side of the right bottom of heat exchanging chamber 222, and are worn
Cross water tank 3 and stretch out shell 1, be connected after air-introduced machine 6, flue gas removing dust case 7 are provided with outlet flue with main smoke exhaust pipe 5, second
Smoke exhaust pipe 52 is arranged on the top of combustion chamber 21, and stretches out shell 1 through water tank 3；In heat exchanging chamber 22 dividing plate 42 is erect by second
It is divided into left heat exchanging chamber 221 and right heat exchanging chamber 222；It is horizontal by the polylith that is staggered in left heat exchanging chamber 221 and right heat exchanging chamber 222
Heat exchanger plates 223 formation two S types left heat transfer flue 91 and right heat transfer flue 92；Left heat transfer flue 91 and right heat transfer flue 92
The specular of dividing plate 42 is erect along second, and left heat transfer flue 91 is connected with the top of right heat transfer flue 92；First erects dividing plate
41st, the left side heat exchanger plates 223 that the second setting dividing plate 42 and heat exchanger plates 223 are in hollow sandwich plate, left heat transfer flue 91 pass through
First setting dividing plate 41 is communicated with water tank 3, the left side in right side heat exchanger plates 223 and right heat transfer flue 92 in left heat transfer flue 91
Heat exchanger plates 223 are communicated by the second setting dividing plate 42 with water tank 3, and the right side heat exchanger plates 223 in right heat transfer flue 92 are directly and water
Case 3 is connected.
Charge door 211, the smoke exhaust pipe 52 of air distribution outlet 212 and second are arranged on shell 1, and through water tank 3 with burning
Chamber 21 is connected；Charge door 211 is used to add fuel into combustion chamber 21, it is ensured that the origin of heat of boiler；Air distribution outlet 212 is used to carry
The air needed for fuel combustion, the high-temperature flue gas after fuel combustion enters left heat exchanging chamber 221 under the promotion of wind-force and the right side is changed
Hot chamber 222；The granular fuel carried in high-temperature flue gas further fires in the left heat transfer flue 91 and right heat transfer flue 92 of S types
Burn, while high-temperature flue gas and the abundant contact heat-exchanging of water tank 3；The temperature of left heat exchanging chamber 221 and the high-temperature flue gas in right heat exchanging chamber 222
Up to 1500 degrees centigrades, flue gas temperature after right heat exchanging chamber 222 and dust cleaning case 7 can be down to 80 degrees centigrades；Air inducing
Machine 6 is used to the high-temperature flue gas in left heat exchanging chamber 221 and right heat exchanging chamber 222 being attracted to the first smoke exhaust pipe 51；Breast hole 214 and clear
Grey mouth 215 is arranged on shell 1, and is connected through water tank 3 with combustion chamber 21；Breast hole 214 is used for larger in clearing furnace 2
The burning dregs of particle, cleaning door 215 is used for the dust left after being filtered after being burnt in clearing furnace 2 through fire bars 213；Fire bars
213 two ends are opening, are connected with water tank 3, in the energy-saving environmental protection boiler course of work, the water in water tank 3 can pass through stove
Bar 213 flows through；Fire bars 213 can also filter larger fuel particle, convenient to be cleared up from breast hole 214；Correspondence stove on shell 1
The position of bar 213 is provided with the scaling hole 11 for clearing up dirt；Water supply tank 8 is arranged on the top of the energy-saving environmental protection boiler, and
It is connected through shell 1 with water tank 3；The position of the left heat exchanging chamber 221 of the correspondence of shell 1 and right heat exchanging chamber 222 is provided with dust removal door 216；
Dust removal door 216 is connected with shell 1 by way of being hinged, and dust removal door 216 is provided with four fans, is mainly used in clearing up heating plate 223
The dust that surface leaves.
Preferably, dust cleaning case 7 selects water dust cleaning case, and water dust cleaning case can not only absorb the dust in flue gas, while may be used also
So that the harm gas such as sulfur dioxide in flue gas to be absorbed, the effect of environmental protection can be played.
In actual applications, scaling hole 11 is arranged between breast hole 214 and cleaning door 215, scaling hole 11 and corresponding
Fire bars 213 is provided in round, and is provided with 5, a diameter of 0.73cm of fire bars 213, and length is 60cm；The shape of charge door 211
For rectangle, long 45cm, wide 35cm；Breast hole 214 is shaped as rectangle, long 35cm, wide 25cm；Heating plate 221 is pros
Body, length and width are 60cm, a height of 0.5cm；Boiler generally enclosed construction, the water tank width between water tank and shell is 5cm.
The utility model provide a kind of energy-saving environmental protection boiler, by burner hearth set first erect dividing plate by burner hearth every
Combustion chamber and heat exchanging chamber are separated out, sets second to erect dividing plate and heat exchanging chamber is isolated into left heat exchanging chamber and right heat exchanging chamber, left heat exchanging chamber
With the connection of right heat exchanging chamber top, interlock heat exchanger plates respectively in left heat exchanging chamber and right heat exchanging chamber, makes the combustion carried in high-temperature flue gas
Material further burning, can improve efficiency of combustion, and first erect dividing plate will, second to erect dividing plate and heat exchanger plates be hollow folder
Laminate so that high-temperature flue gas and water tank are fully contacted, can improve the utilization ratio of heat energy；Simultaneously can be with having in purifying smoke
Evil material, energy-conserving and environment-protective are good.
In the new specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the utility model
New embodiment can be put into practice in the case of these no details.In some instances, it is not been shown in detail known
Method, structure and technology, so as not to obscure the understanding of this description.
Finally it should be noted that：The above example technical scheme new only to illustrate the utility model, rather than to it
Limitation；Although being described in detail with reference to foregoing embodiments are new to the utility model, the ordinary skill people of this area
Member should be understood：It can still modify to the technical scheme described in foregoing embodiments, or to which part or
Person's all technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from this
The scope of the new each embodiment technical scheme of utility model, it all should cover in the utility model new claim and explanation
Among the scope of book.
Claims (10)
1. a kind of energy-saving environmental protection boiler, it is characterised in that including shell and burner hearth, water is formed between the bore wall and shell of burner hearth
Case；It is divided into the burner hearth by the first setting dividing plate in combustion chamber and heat exchanging chamber, the heat exchanging chamber and erects dividing plate by second
It is divided into left heat exchanging chamber and right heat exchanging chamber；
Pass through a left side for the horizontal heat exchanger plates two S types of formation of the polylith that is staggered in the left heat exchanging chamber and the right heat exchanging chamber
Heat transfer flue and right heat transfer flue；Left heat transfer flue and right heat transfer flue erect dividing plate specular along described second, and a left side is changed
Heating flue is connected with the top of right heat transfer flue；The first setting dividing plate, the second setting dividing plate and the heat exchanger plates are equal
For hollow sandwich plate, the heat exchanger plates in left heat transfer flue close to left side are communicated by the described first setting dividing plate with the water tank,
In left heat transfer flue close to right side heat exchanger plates and right heat transfer flue in close to left side heat exchanger plates by described second erect every
Plate is communicated with the water tank, and the heat exchanger plates in right heat transfer flue close to right side are directly connected with the water tank；Combustion chamber and heat exchange
The lower end connection of chamber；
The bottom of the right heat exchanging chamber is provided with the first smoke exhaust pipe, first smoke exhaust pipe is connected by dust cleaning case with flue collector,
Be additionally provided with charge door, air distribution outlet and the second smoke exhaust pipe in the cavity wall of the combustion chamber, second smoke exhaust pipe directly with
The flue collector is connected；Water return outlet and delivery port are additionally provided with the water tank.
2. energy-saving environmental protection boiler according to claim 1, it is characterised in that be provided with grate in the combustion chamber,
Breast hole and cleaning door are additionally provided with the cavity wall of the combustion chamber, the breast hole is located at the upper end of grate, the cleaning door
Positioned at the lower end of road and bridge.
3. energy-saving environmental protection boiler according to claim 2, it is characterised in that the grate is by many stoves be arrangeding in parallel
Bar is constituted, and the fire bars is tubular structure, and the two ends of fire bars are communicated with the water tank respectively.
4. energy-saving environmental protection boiler according to claim 3, it is characterised in that the position of the correspondence fire bars on the shell
It is provided with the scaling hole for clearing up dirt.
5. energy-saving environmental protection boiler according to claim 1, it is characterised in that be provided with air inducing on first smoke exhaust pipe
Machine.
6. energy-saving environmental protection boiler according to claim 1, it is characterised in that be provided with and remove in the cavity wall of the heat exchanging chamber
Dirt door.
7. energy-saving environmental protection boiler according to claim 6, it is characterised in that the dust removal door is with the shell by being hinged
Mode connect.
8. energy-saving environmental protection boiler according to claim 1, it is characterised in that also including water supply tank, the water supply tank is set
It is connected on the top of the energy-saving environmental protection boiler, and through shell with water tank.
9. energy-saving environmental protection boiler according to claim 1, it is characterised in that the dust cleaning case is water dust cleaning case.
10. energy-saving environmental protection boiler according to claim 1, it is characterised in that also including stove seat, stove seat is arranged on described
The bottom of energy-saving environmental protection boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360738.XU CN206338929U (en) | 2016-12-12 | 2016-12-12 | Energy-saving environmental protection boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360738.XU CN206338929U (en) | 2016-12-12 | 2016-12-12 | Energy-saving environmental protection boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338929U true CN206338929U (en) | 2017-07-18 |
Family
ID=59300556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621360738.XU Expired - Fee Related CN206338929U (en) | 2016-12-12 | 2016-12-12 | Energy-saving environmental protection boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189349A (en) * | 2020-01-06 | 2020-05-22 | 北京微燃科技有限公司 | Dust-removing heat-exchanging device for combustion furnace |
| WO2020181350A1 (en) * | 2019-03-13 | 2020-09-17 | CNH Industrial Brasil Ltda. | Air filter for utility-machine cabs and utility machine |
-
2016
- 2016-12-12 CN CN201621360738.XU patent/CN206338929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181350A1 (en) * | 2019-03-13 | 2020-09-17 | CNH Industrial Brasil Ltda. | Air filter for utility-machine cabs and utility machine |
| CN111189349A (en) * | 2020-01-06 | 2020-05-22 | 北京微燃科技有限公司 | Dust-removing heat-exchanging device for combustion furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20211212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |