CN202835457U - Multiple combustion type civilian heating furnace provided with internal air duct system - Google Patents
Multiple combustion type civilian heating furnace provided with internal air duct system Download PDFInfo
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- CN202835457U CN202835457U CN 201220332709 CN201220332709U CN202835457U CN 202835457 U CN202835457 U CN 202835457U CN 201220332709 CN201220332709 CN 201220332709 CN 201220332709 U CN201220332709 U CN 201220332709U CN 202835457 U CN202835457 U CN 202835457U
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- furnace
- air inlet
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 69
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 239000003245 coal Substances 0.000 claims abstract description 7
- 230000007935 neutral effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011229 interlayer Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 239000000446 fuel Substances 0.000 description 17
- 239000002737 fuel gas Substances 0.000 description 16
- 238000002309 gasification Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 239000011148 porous material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000003517 fume Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to a multiple combustion type civilian heating furnace provided with an internal air duct system. The multiple combustion type civilian heating furnace provided with the internal air duct system comprises a furnace body and an expansion water tank, wherein a coal feeding opening, a front air door and a slag removal door are sequentially arranged at the front end of the furnace body from top to bottom, and a first furnace opening is arranged at the upper end of the furnace body. The multiple combustion type civilian heating furnace provided with the internal air duct system is characterized by further comprising a second furnace opening arranged above the first furnace opening, a multi-hole tubular inner interlayer auxiliary combustion device embedded in the first furnace opening, and the internal air duct system arranged in the furnace body. According to the multiple combustion type civilian heating furnace provided with the internal air duct system, a traditional mode is the furnace is used continuously, the return combustion characteristic is further optimized, the function of direct combustion is not lost even though the return combustion is utilized, and compared with a traditional direct combustion furnace and a return combustion furnace, great improvements are achieved in technology, structure and application.
Description
Technical field
The utility model relates to a kind of multiple combustion-type civil heating stove with interior ducting system.
Background technology
Vast northern country family warming major part is all being used domestic water heating coal-burning stove for heating stove and accessory, along with growth in the living standard, people are more and more higher to the performance requirement of hot-water heating coal-burning stove for heating stove and accessory, namely should seek the stove and accessory that a kind of safety is economized on coal, pollution-free, the thermal efficiency is high, family is easy to use, satisfy the market demand of present domestic water heating coal-burning stove for heating stove and accessory.
Be " civil water heating coal stove general technical specifications " benchmark according to GB16154-2005, integrate directly the multiple combustion-type civil heating stove that burns, returns burning, gasification, and combustion, be at traditional straight burning civil heating stove, return on the basis of burning civil heating stove its internal structure has been carried out the optimization of rational improvement and technology.
The domestic water heating coal stove roughly is divided into " the straight burning ", " returning burning " two kinds on the market at present, the straight fuel of civil heating stove that burns is through after the primary combustion, thermal loss is more, flue gas and dust are discharged in a large number from chimney, fire door, environmental pollution is serious, and family uses that dust is many, flue gas is large, indoor temperature is low, and fuel can not fully burn, cause the wasting of resources and greatly have potential safety hazard, as: anthracemia etc.; Return the burning civil heating stove straight burning civil heating stove has been carried out relative improvement, the fuel gas that discharges in the time of can be to fuel combustion carries out second-time burning, but also unable to do what one wishes, the resonable degree of its internal structure remains depth design and planning, still there are the problems such as fume emission and dust pollution, even produce that the chain reaction thermal efficiency is low, slow, the problem such as area of heat-supply service is not enough of getting angry, although more problems to be optimized is arranged, but compare straight burning civil heating stove, return the burning civil heating stove and progressively approved by market.
The utility model content
Technical problem to be solved in the utility model provides a kind of more effective energy-saving and emission-reduction and uses safety and smoke dust, the multiple combustion-type civil heating stove with interior ducting system that the thermal efficiency is high.
The utility model adopts following technical scheme:
The utility model comprises body of heater and expansion tank, described body of heater front end is disposed with coal filling hole from top to bottom, front air door and clean-out door, described body of heater upper end is provided with the first fire door, it is characterized in that being arranged at the second fire door of the first fire door upper end, be embedded at the interior ducting system in the interior porous type tubular intraformational bed auxiliary combustion equipment of the first fire door and setting and the body of heater, described porous type tubular intraformational bed auxiliary combustion equipment circumference is provided with 4 air inlets, described interior ducting system comprises the rear air inlet that is arranged at described body of heater rear end and is arranged at the interior transmission air channel of body of heater, described rear air inlet is comprised of burner hearth air inlet and combustion barrel air inlet, be provided with the neutral gear groove between described burner hearth air inlet and combustion barrel air inlet, described burner hearth air inlet, combustion barrel air inlet and neutral gear groove big or small identical is provided with shutter in the described burner hearth air inlet; Described transmission air channel by the furnace bottom air channel that is arranged at the body of heater bottom, be arranged at the air channel, 4 furnace walls of four jiaos of bodies of heater and 4 and compile the air channel, described combustion barrel air inlet is connected with the furnace bottom air channel, air channel, described 4 furnace walls is connected with the furnace bottom air channel respectively, and described 4 are connected with air inlet after compiling the air channel and corresponding air channel, furnace wall being connected.
Good effect of the present utility model is as follows:
One, environmental contamination reduction.
The flue gas process that fuel gives off when the internal combustion of combustion chamber is converged with high-temperature gas, has carried out gasification and has returned burning, has reasonably utilized the fuel gas of fuel draining, reduces in a large number fume emission and the dust pollution of chimney.
Two, energy savings.
Fuel gas behind the fuel gasification is fully burned, drops to cleaning door from the fire grate of lower portion of furnace body, and the residue of cleaning door is Powdered, and fully the fuel after the burning has reduced the combustible in the ashes in a large number without waste.
Three, the thermal efficiency is high
After entering normal operating condition, fuel gasification in the combustion chamber is sufficient, the gasification utilization rate is high, mention the high temperature of gasification to be discharged to porous type tubular intraformational bed auxiliary combustion equipment place the combustion chamber of sealing, and herein burning, heat most of by around heat absorption water mantle in water siphon away, reduced heat waste, thereby greatly improved the thermal efficiency.
Four, use safety
Because be gasification, and combustion, the gas of burning is fuel gas, and wherein fuel gas can be divided into: carbon monoxide, methane.Carbon monoxide is in case absorbed in a large number by human body, can cause anthracemia, the safety coefficient of gasification furnace just is, carbon monoxide is when being gone out by fuel draining, in body of heater just with its burning, can not be discharged in the air and be absorbed by the body, use safety, can not cause anthracemia.
Five, multi-use satisfies user's user demand.
The utility model can satisfy the different heating demand of each family, rear air door adjustment (adjusting) lever can be regulated rear damper and move up and down, and to reach the oxygen condition of giving in various degree, the user is easy to use, according to family lives such as heating, cook, heat up water, can carry out corresponding adjusting.Country advocates energy-saving and emission-reduction.Identical fuel, in different environment, burn, the utilization rate of heat is completely different, a rational working space is provided for fuel and combustion-supporting gas, innovated thinking energy-conservation, that reduce discharging with the angle of science, thereby reached effect energy-conservation, that reduce discharging, the utility model is fuel gas, the combustible of combustion fuel, fuel discharge fully, reduce fume emission and dust pollution, improved the thermal efficiency.
The user demand different according to the user.Adjustable rear air door is to wind system, applicable different firepower period, as: be adjusted to when damper, moderate heat after regulating first before the igniting " admixture " etc.Satisfy the firepower demand of different user.
Six, the controllability of fuel combustion and the ability of banking up a fire of stove and accessory have been improved.
Integrate directly the multiple combustion-type civil heating stove that burns, returns burning, gasification, and combustion, rational cross-ventilated application utilizes the convective principles of hot and cold gas, the textural utility model of carrying out is innovated, direct cold air is heated, and heats up to be to contact high-temperature gas with fuel gas again.The density of hot and cold gas is different, and hot gas upwards wafts, and cold air is waftd downwards, has therefore formed cross-ventilation in body of heater inside, thereby has accelerated the comburant oxygen effect of carrying in the air.
The renew traditional mode of stove and accessory of the utility model.Characteristics are further optimized will " to return burning ", though also do not lose the function of " the straight burning " for " returning burning ", compare tradition " direct burning furnace " " stove ", have stepped major step in technology, structure, application.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Structural representation when accompanying drawing 2 is opened the combustion barrel air inlet for the utility model.
Structural representation when accompanying drawing 3 is opened the burner hearth air inlet for the utility model.
Accompanying drawing 4 is the utility model rear air inlet full closeding state structural representation.
Accompanying drawing 5 compiles the air channel structure schematic diagram for the utility model.
Accompanying drawing 6 is the utility model furnace wall air channel structure schematic diagram.
Accompanying drawing 7 is the utility model rear air inlet structural representation.
The specific embodiment
Shown in accompanying drawing 1-7, a kind of collection of the utility model is straight to be burnt, return burning, the multiple combustion-type civil heating stove that gasification, and combustion is integrated, it comprises body of heater 1 and expansion tank 2, described body of heater 1 front end is disposed with coal filling hole 3 from top to bottom, front air door 4 and clean-out door 5, described body of heater 1 upper end is provided with the first fire door 24, it is characterized in that being arranged at the second fire door 25 of the first fire door 24 upper ends, be embedded at the porous type tubular intraformational bed auxiliary combustion equipment in the first fire door 24, be fixedly installed on the high fire-resistant tubular heating device 7 of described porous type tubular intraformational bed auxiliary combustion equipment lower end, interior ducting system in setting and the body of heater 1 and the link type regulating device of air door that is arranged at body of heater 1 rear end, described porous type tubular intraformational bed auxiliary combustion equipment is comprised of inner core 8 and urceolus 9, described pore 23 from top to bottom successively by close to dredging and ascending setting.Described urceolus 9 circumference are provided with 4 air inlets 10, and described urceolus 9 upper ends are provided with seal cover 11; The upper end of the fire-resistant tubular heating device 7 of described height is fixedly connected with urceolus 9 with inner core 8; Described interior ducting system comprises the rear air inlet that is arranged at described body of heater 1 rear end and is arranged at transmission air channel in the body of heater 1, described rear air inlet is comprised of burner hearth air inlet 12 and combustion barrel air inlet 13,13 of described burner hearth air inlet 12 and combustion barrel air inlets are provided with neutral gear groove 14, described burner hearth air inlet 12, combustion barrel air inlet 13 and neutral gear groove 14 big or small identical is provided with shutter 26 in the described burner hearth air inlet 12; Described transmission air channel by the furnace bottom air channel 15 that is arranged at body of heater 1 bottom, be arranged at the air channel, 4 furnace walls 16 of 1 four jiaos of bodies of heater and 4 and compile air channel 17, described combustion barrel air inlet 13 is connected with furnace bottom air channel 15, air channel, described 4 furnace walls 16 is connected with furnace bottom air channel 15 respectively, and described 4 are connected with air inlet 10 after compiling air channel 17 and corresponding air channel, furnace wall 16 being connected; Described link type regulating device of air door comprise the burner hearth air inlet 12, combustion barrel air inlet 13 and the neutral gear groove that are arranged at body of heater 1 rear end are connected both sides chute 18, be arranged at chute 18 interior controllable registers 19, be arranged at the pull bar 20 of expansion tank 2 one sides and connect controllable register 19 and the linkage 21 of pull bar 20, be provided with on the described controllable register 19 one with burner hearth air inlet 12, combustion barrel air inlet 13 and neutral gear groove 14 big or small identical adjustment holes 22.
The utility model reaches by following several improvement and improves the safer purpose of thermal effect use.
1, porous type tubular intraformational bed auxiliary combustion equipment
The shape of high-temp combustion cylinder is cylindrical, the combustion barrel cylindrical shell is divided into two parts, respectively urceolus and inner core, in the middle of the urceolus of high-temp combustion cylinder and the inner core one deck closed sandwich is arranged, at urceolus four ventilating openings are arranged, connect four air channel ventilating openings, be covered with pore on the inner core, after the high-temperature gas of wind passage mouth enters interlayer, can converge by pore and the high-temperature combustible gas body of inner core, thereby realize that fuel gas is by the combustion-supporting abundant burning of oxygen.
2, high fire-resistant tubular heating device
The high temperature heat gathering tube is installed under the high-temp combustion cylinder, and combine closely with the high-temp combustion cylinder, its material is the aluminum oxide refractory concrete, shape is hollow cylindrical, and when working in the combustion chamber, the temperature of high temperature heat gathering tube is very high, when the fuel gas behind the fuel gasification passes through the high temperature heat gathering tube, heat gathering tube can improve the temperature of fuel gas, fuel gas heat rear rapid expansion meeting with directly over the pore of high-temp combustion cylinder contact i.e. burning.
3, interlayer air-intake device
1. furnace wall inner channel
It is one deck ventilating duct in the inboard welding of the inner heat absorption water mantle of stove and accessory, make the cold air that enters body of heater inside from rear air door during by heat absorption water mantle and combustion chamber, improve the temperature of cold air, the easier fuel gas with stove and accessory inside of the oxygen that cold air is carried contacts, thereby more reasonably reaches the effect of comburant oxygen.Because cold air is different from hot gas density, when hot gas moves to upper of furnace body, cold air air door behind the body of heater enters body of heater, naturally just formed natural " air blast ", the principle of application of air convection current, gas in the interlayer of body of heater air channel is to be in flow regime all the time, the not banking fire so that the body of heater internal flame is burnt to top of the cross-ventilation during comburant oxygen.
2. top, furnace wall passage
Top, furnace wall passage is to be connected with the air channel interlayer, be welded on the wall on top, combustion chamber, respectively four ventilating openings, the air port is over against the urceolus of the high-temp combustion cylinder in centre, enter the inner core of high-temp combustion cylinder through the gas of air channel interlayer intensification from the air port, contact with fuel gas by pore.The bore of each ventilating opening is all young a lot of than rear air door, and the gas that causes rear air door to enter is the shunting shape to be supplied with, thereby is unlikely to affect the normal combustion of flame, simultaneously more effective raising comburant oxygen effect.
4, link type regulating device of air door
The link type regulating device of air door is two parts: wind passage mouth and baffle plate
1. with the part of body of heater welding, this part is two wind passage mouths, windward road junction and leeward road junction.What (1) the windward road junction connected is the combustion chamber, directly make air enter the middle part of combustion chamber, after the oxygen that carries in the air enters the combustion chamber, directly contact with combustible, because the combustible major part in the combustion chamber is charcoal, oxygen is best combustion-supporting gas for charcoal, thereby upper air duct gas enters the link of combustion chamber, is direct comburant oxygen, also is the citation form of tradition " direct burning furnace ", for user's use, this windward road junction can selectively be used.What (2) the leeward road junction connected is the air channel interlayer, what the air channel interlayer connected is four air channel ventilating openings, lower air duct enters the gas in the body of heater, warp is air door later, the air channel interlayer, four air channel ventilating openings, arrive again the inner core pore of high-temp combustion cylinder, the gas of this moment has passed through the lifting of high temperature in the body of heater, become high-temperature gas, the fuel gas that high-temperature gas is direct and fuel in combustion chamber gasifies, combustible in the flue gas contacts, combustible and fuel gas have fully been burnt, fume emission has reduced, and from the chimney of open air observation heating stove, can't see the discharging of flue gas.
2. baffle plate.Baffle plate is the adjustment means of regulating windward road junction and leeward road junction, and baffle plate is by connecting lever drives, is in the wind road junction and leeward road junction when up and down when baffle plate, and the ventilation at windward road junction and leeward road junction is affected.(1) when baffle plate blocks the windward road junction, the baffle plate at leeward road junction is unobstructed, the leeward road junction is to wind, this moment, the work of body of heater was " the burning state is returned in gasification ", namely be that air enters from the leeward road junction, warp is air door, air channel interlayer, four air channel ventilating openings later, arrive the inner core pore of high-temp combustion cylinder again, high temperature air contacts with fuel gas, burning.(2) when baffle plate blocks the leeward road junction, the baffle plate at windward road junction is unobstructed, and the windward road junction is to wind, and this moment, the work of body of heater was " directly burning state ", namely was that air enters from the windward road junction, and fuel direct and in the combustion chamber contacts.(3) when baffle plate blocks upper and lower wind passage mouth simultaneously, be " state of banking up a fire ", can suitably regulate the breast hole of body of heater front end, suitably give wind.(4) block each half of upper and lower wind passage mouth when baffle plate, be " admixture ", when giving wind, four air channel ventilating openings are also given wind the combustion chamber in, and be very hot oven period this moment, as: cook, heat up water, radiator heats raising indoor temperature etc.
Connect lever in the side of body of heater, can be by connecting the upper-lower position of lever regulate damper, in use, the user demand different according to family regulated voluntarily.
Claims (1)
1. multiple combustion-type civil heating stove with interior ducting system, it comprises body of heater (1) and expansion tank (2), described body of heater (1) front end is disposed with coal filling hole (3) from top to bottom, front air door (4) and clean-out door (5), described body of heater (1) upper end is provided with the first fire door (24), it is characterized in that being arranged at second fire door (25) of the first fire door (24) upper end, be embedded at the interior ducting system in the interior porous type tubular intraformational bed auxiliary combustion equipment of the first fire door (24) and setting and the body of heater (1), described porous type tubular intraformational bed auxiliary combustion equipment circumference is provided with 4 air inlets (10), described interior ducting system comprises the rear air inlet that is arranged at described body of heater (1) rear end and is arranged at the interior transmission air channel of body of heater (1), described rear air inlet is comprised of burner hearth air inlet (12) and combustion barrel air inlet (13), be provided with neutral gear groove (14) between described burner hearth air inlet (12) and combustion barrel air inlet (13), described burner hearth air inlet (12), combustion barrel air inlet (13) is big or small identical with neutral gear groove (14), is provided with shutter (26) in the described burner hearth air inlet (12); Described transmission air channel by the furnace bottom air channel (15) that is arranged at body of heater (1) bottom, be arranged at the air channel, 4 furnace walls (16) of (1) four jiao of body of heater and 4 and compile air channel (17), described combustion barrel air inlet (13) is connected with furnace bottom air channel (15), air channel, described 4 furnace walls (16) is connected with furnace bottom air channel (15) respectively, and described 4 are connected with air inlet (10) after compiling air channel (17) and corresponding air channel, furnace wall (16) being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332709 CN202835457U (en) | 2012-07-11 | 2012-07-11 | Multiple combustion type civilian heating furnace provided with internal air duct system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332709 CN202835457U (en) | 2012-07-11 | 2012-07-11 | Multiple combustion type civilian heating furnace provided with internal air duct system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202835457U true CN202835457U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332709 Expired - Lifetime CN202835457U (en) | 2012-07-11 | 2012-07-11 | Multiple combustion type civilian heating furnace provided with internal air duct system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202835457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135484A (en) * | 2015-09-12 | 2015-12-09 | 新疆吾孜坦国际商贸有限公司 | Double-layer automatic stove capable of being used for cooking and supplying heat |
| CN105202584A (en) * | 2015-10-27 | 2015-12-30 | 哈尔滨天源工贸有限公司 | Full-automatic biomass burning heating furnace |
| CN109340832A (en) * | 2018-10-09 | 2019-02-15 | 芜湖天火新能源科技有限公司 | A kind of clean fuel stove |
-
2012
- 2012-07-11 CN CN 201220332709 patent/CN202835457U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135484A (en) * | 2015-09-12 | 2015-12-09 | 新疆吾孜坦国际商贸有限公司 | Double-layer automatic stove capable of being used for cooking and supplying heat |
| CN105202584A (en) * | 2015-10-27 | 2015-12-30 | 哈尔滨天源工贸有限公司 | Full-automatic biomass burning heating furnace |
| CN109340832A (en) * | 2018-10-09 | 2019-02-15 | 芜湖天火新能源科技有限公司 | A kind of clean fuel stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multiple combustion type civilian heating furnace provided with internal air duct system Effective date of registration: 20150925 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: 2015130000016 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181206 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: 2015130000016 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multiple combustion type civilian heating furnace provided with internal air duct system Effective date of registration: 20181219 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: 2018130000017 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200103 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: 2018130000017 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multiple combustion type civilian heating furnace provided with internal air duct system Effective date of registration: 20200115 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: Y2020130000003 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210302 Granted publication date: 20130327 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG DUOKANG HEATING EQUIPMENT Co.,Ltd. Registration number: Y2020130000003 |
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