CN214172193U - Biomass-fired evaporator - Google Patents
Biomass-fired evaporator Download PDFInfo
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- CN214172193U CN214172193U CN202022261072.5U CN202022261072U CN214172193U CN 214172193 U CN214172193 U CN 214172193U CN 202022261072 U CN202022261072 U CN 202022261072U CN 214172193 U CN214172193 U CN 214172193U
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Abstract
A biomass-fired evaporator comprises a flue gas condenser, an upper steam drum and a combustion chamber, wherein the upper steam drum is arranged between the flue gas condenser and the combustion chamber, and is provided with an upward steam outlet pipe; the flue gas condenser is provided with a condensation smoke box, the condensation smoke box is provided with an upper layer smoke channel and a lower layer smoke channel, a water inlet box and a water outlet box are respectively arranged at the left end and the right end of the condensation smoke box, a plurality of water passing pipes are respectively arranged in the upper layer smoke channel and the lower layer smoke channel, the water passing pipes are connected with the water inlet box and the water outlet box, the water inlet box is communicated with the water outlet box through the water passing pipes, the water inlet box is connected with a cold water inlet pipe, and the water outlet box is connected with a hot water outlet pipe; the combustion chamber is provided with a plurality of groups of lower headers and steam rising pipes which are connected in parallel, and the lower headers and the steam rising pipes are heated by the evaporator body to become steam which enters the upper steam pocket of the evaporator. The steam-water mixture entering the upper steam drum, the wet saturated steam separated by the steam-water separating device arranged in the upper steam drum, is output to steam equipment through a steam outlet of the evaporator. It is safe to use and has high heat efficiency.
Description
Technical Field
The utility model relates to a steam generating equipment, especially a fire biomass evaporator.
Background
The traditional evaporator needs to manufacture a shell or a coil pipe and a furnace pipe, and under the rigid regulation that the water capacity is less than 30-50L, the corresponding heating area, the furnace pipe with a certain height and a water and fire pipe in the furnace pipe still need to be arranged for ensuring the output of the evaporator. Because the water volume is too small, only water is arranged at the bottom of the evaporator, and most of the heated surface is not protected by water. When the evaporator operates, a furnace pipe of a heating surface without water protection and water and fire tubes are easy to burn out; the occurrence of tube explosion is a common fault in the use process of the existing evaporator.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to prior art not enough, provided a high, the safe in utilization of thermal efficiency burn biomass evaporator.
The to-be-solved technical problem of the utility model is realized through following technical scheme, a fire biomass evaporator, its characteristics are:
the device comprises a flue gas condenser and an evaporator body, wherein the evaporator body comprises an upper steam drum and a combustion chamber, the upper steam drum is arranged between the flue gas condenser and the combustion chamber, and the upper steam drum is provided with a steam outlet pipe;
the smoke condenser is provided with a condensation smoke box, the condensation smoke box is provided with an upper smoke passing channel and a lower smoke passing channel, the rear part of the lower smoke passing channel is provided with a smoke inlet, the rear part of the upper smoke passing channel is provided with a smoke outlet, the front part of the condensation smoke box is provided with a front smoke box communicated with the upper smoke passing channel and the lower smoke passing channel, the left end and the right end of the condensation smoke box are respectively provided with a water inlet box and a water outlet box, a plurality of water passing pipes are arranged in the upper smoke passing channel and the lower smoke passing channel, the water passing pipes are connected with the water inlet box and the water outlet box, the water inlet box and the water outlet box are communicated through the water passing pipes, the water inlet box is connected with a cold water inlet pipe, and the water outlet box is connected with a hot water outlet pipe;
the front part of the combustion chamber is provided with a furnace door and a feed inlet, the bottom of the combustion chamber is provided with a fire grate, two sides of the fire grate are provided with a left lower collecting box and a right lower collecting box, the left lower collecting box and the right lower collecting box are upwards connected with an upper steam drum through a left pipe wall and a right pipe wall, the top ends of the rear parts of the left pipe wall and the right pipe wall are provided with smoke passing openings, and the smoke passing openings are upwards communicated with smoke inlet openings of condensing smoke boxes;
the lower collecting box is formed by combining a plurality of sub collecting boxes side by side in sequence from front to back, water supply collecting boxes for supplying water to the left and right lower collecting boxes are arranged on the outer sides of the left and right pipe walls, each sub collecting box is connected with the water supply collecting boxes through a water inlet branch pipe, and water supply valves are arranged on the water supply branch pipes;
a hot water outlet pipe of the flue gas condenser is connected with the water supply header;
two water level monitoring devices are arranged on the outer sides of the left pipe wall and the right pipe wall.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, respectively be equipped with one about the water supply collection case, communicate with each other through the horizontal union coupling of intaking between two water supply collection cases.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, the lower collection case be a whole pipe, separate into a plurality of branch collection casees through grouping the baffle in the whole pipe.
The to-be-solved technical problem of the utility model can also further realize through following technical scheme, and the front wall and the back wall of combustion chamber all are equipped with the support tube, and the both ends of support tube are connected respectively and are formed water support tube under between header pipe and the last steam pocket.
The utility model discloses the technical problem who solves can also further realize through following technical scheme, go up the steam pocket for setting up the jar body at the combustion chamber top, be equipped with steam-water separation mechanism at jar body middle part, steam-water separation mechanism include two steam-water separation orifice plates that set up around the jar body, two steam-water separation orifice plates set up to jar body center relative slope by both sides, set up for the V font at two crossing sections of steam-water separation orifice plates, the crossing department setting of upper end and last steam pocket of pipe wall in the below of steam-water separation orifice plate.
The utility model discloses the technical problem who solves can also further realize through following technical scheme, including setting up two water level monitoring devices in the left and right sides tube wall outside, water level monitoring device is equipped with water level gauge water header pipe and water level gauge, each branch collection box of lower collection box all is equipped with water and allies oneself with the branch pipe and allies oneself with the house steward and is connected and communicate with each other with water, and the end opening and the water header pipe of water level gauge meet, and the last mouthful of water level gauge is connected with a vapour antithetical couplet pipe, the other end of vapour antithetical couplet pipe with the upper portion of going up the steam pocket is connected and is communicated with each other.
The to-be-solved technical problem of the utility model can also further realize through following technical scheme that about two lower collection casees are linked together with the vapour package upwards through a plurality of wall pipes respectively, the pipe wall about the adjacent pipe of wall pipe is connected the constitution through fin between the pipe.
The utility model discloses the technical problem who solves can also further realize through following technical scheme, be equipped with well collection case on the upper portion of collection case down, well collection case be equipped with the collection case section of the branch collection case one-to-one of collection case down, communicate with each other through a plurality of lower wall union couplings between lower collection case and the well collection case, constitute the lower tube wall through connecting fin connection between the pipe of lower wall pipe, communicate with each other through a plurality of upper wall union couplings between well collection case and the steam dome, connect through connecting fin connection between the pipe of upper wall pipe and constitute the upper tube wall.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, still be equipped with at least one deck in the upper tube wall and connect and do not contain the interior ascending steam pipe of being connected fin between header and the last steam pocket.
Compared with the prior art, the utility model, through upper/lower two-layer flue gas condenser, carry out ultimate recovery to the heat of the high temperature flue gas of evaporator flue gas export, make terminal exhaust flue gas temperature extremely low, the evaporimeter thermal efficiency is high. The two side inlet and outlet water tanks of the flue gas condenser adopt a pressure-bearing water tank structure. The combustion chamber adopts an integrated parallel multi-group structure; and the header between each group is separated by a clapboard; each group is an advanced process design of an independent evaporation surface. The evaporator body is manufactured without a shell and an inner container; the combustion chamber has large volume, simple manufacturing process and quick manufacturing. The heating surface of the evaporator body runs full of water, so that the common problems that due to water shortage on the upper part of the heating surface of the evaporator, no water protection is easily caused during running, overburning and tube explosion occur, and the service cycle is short are thoroughly solved.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a side view of the pipe rack of the present invention;
FIG. 3 is a connection diagram of the water level monitoring apparatus;
FIG. 4 is a side view of another embodiment of the present invention;
FIG. 5 is a cross-sectional view of the upper drum.
In the figure: the device comprises a lower ash door 1, a lower header 2, a furnace door 3, a support pipe 4, a feed inlet 5, a wall pipe 6, an upper steam pocket 7, a lower smoke passing channel 8, a front smoke box 9, a steam outlet 10, an upper smoke passing channel 11, a silencer 12, a draught fan 13, a smoke outlet 14, a smoke inlet 15, a smoke passing port 16, a descending pipe 17, a water inlet main pipe 18, a water pump 19, a grouping partition plate 20, a blow-off pipe 21, a base 22, a water inlet branch pipe 23, a water linkage branch pipe 24, a water linkage main pipe 25, a water level meter 26, a water supply header 27, a water level sensor 28, a water passing pipe 29, a water outlet box 30, a hot water outlet pipe 31, a water inlet box 32, a cold water inlet pipe 33, a pull rib 34, a steam linkage pipe 35, a water inlet transverse pipe 36, a fire grate 37, a smoke condenser 38, a control valve 39, a steam-water separation mechanism 40, an upper header 41, an upper wall pipe 42, an inner ascending steam pipe 43 and a lower wall pipe 44.
Detailed Description
The embodiments of the present invention will be described in detail below, so as to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, and to make those skilled in the art understand the present invention further, and in the following, the embodiments of the present invention will be combined to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a burn biomass evaporator, includes flue gas condenser and evaporimeter body, and the evaporimeter body includes steam drum and combustion chamber, goes up the steam drum setting between flue gas condenser and combustion chamber, goes up the steam drum and is equipped with the steam outlet pipe that upwards sets up.
The smoke condenser is provided with a condensation smoke box, the condensation smoke box is provided with an upper smoke passing channel and a lower smoke passing channel, the rear part of the lower smoke passing channel is provided with a smoke inlet, the rear part of the upper smoke passing channel is provided with a smoke outlet, the front part of the condensation smoke box is provided with a front smoke box communicated with the upper smoke passing channel and the lower smoke passing channel, the left end and the right end of the condensation smoke box are respectively provided with a water inlet box and a water outlet box, a plurality of water passing pipes are arranged in the upper smoke passing channel and the lower smoke passing channel, the water passing pipes are connected with the water inlet box and the water outlet box, the water inlet box and the water outlet box are communicated through the water passing pipes, the water inlet box is connected with a cold water inlet pipe, and the water outlet box is connected with a hot water outlet pipe; the water inlet tank and the water outlet tank are both designed into pressure-bearing type arc-shaped water tank structures, and two ends of the pressure-bearing type arc-shaped water tank are sealed by steel plates. The upper/lower symmetrical center of the two end sealing steel plates is provided with a pulling and supporting pipe. The cold water inlet pipe is connected with a water feeding pump.
The front part of the combustion chamber is provided with a furnace door and a feed inlet, the bottom of the combustion chamber is provided with a fire grate, two sides of the fire grate are provided with a left lower collecting box and a right lower collecting box, the left lower collecting box and the right lower collecting box are upwards connected with an upper steam drum through a left pipe wall and a right pipe wall, the top ends of the rear parts of the left pipe wall and the right pipe wall are provided with smoke passing openings, and the smoke passing openings are upwards communicated with smoke inlet openings of condensing smoke boxes; the feeding hole is provided with a feeding device and a feeding device of the biomass briquette. A slag outlet door is arranged below one end of the fire grate.
The bottom of the lower header on both sides is provided with a base and an external heat preservation and external package of the evaporator body.
A blower for a combustion chamber is provided on one side of the evaporator, and a silencer is provided at an outlet of the blower.
The top of the evaporator is provided with a smoke exhaust draught fan, and the outlet of the draught fan is provided with a silencer.
The lower collecting box is formed by combining a plurality of sub collecting boxes side by side in sequence from front to back, water supply collecting boxes for supplying water to the left and right lower collecting boxes are arranged on the outer sides of the left and right pipe walls, each sub collecting box is connected with the water supply collecting boxes through a water inlet branch pipe, and water supply valves are arranged on the water supply branch pipes; the bottom of each branch collection box is connected with a blow-off pipe, and a blow-off valve is arranged on the blow-off pipe.
And a hot water outlet pipe of the flue gas condenser is connected with the water supply header.
The left and right of the water supply header are respectively provided with one, and the two water supply headers are communicated through a water inlet transverse pipe.
The lower collecting box is an integral pipe, and the whole pipe is divided into a plurality of sub-collecting boxes by grouping partition plates.
The front wall and the rear wall of the combustion chamber are both provided with support pipes, and the two ends of each support pipe are respectively connected between the lower header pipe and the upper steam drum to form a water passing support pipe. And support pipes are arranged on two sides of the bottom of two ends of the upper steam drum and on the inner sides of two ends of the lower header pipes on two sides, and are poured by refractory materials to form front wall and rear wall seals at two ends.
The upper steam pocket is a tank body arranged at the top of the combustion chamber, the middle part of the tank body is provided with a steam-water separation mechanism, the steam-water separation mechanism comprises two steam-water separation pore plates arranged along the front and the back of the tank body, the two steam-water separation pore plates are oppositely inclined towards the center of the tank body from two sides, the intersecting section of the two steam-water separation pore plates is arranged in a V shape, and the intersecting part of the upper end of the left pipe wall and the upper steam pocket is arranged below the steam-water separation pore plates. The upper part of the upper steam pocket is provided with a steam outlet, a pressure gauge interface, a pressure controller interface and a safety valve interface. A steam-water separator is arranged in the upper steam drum; the bottom of the upper drum is provided with a downcomer 17.
The water level monitoring device is provided with a water level meter water connection main pipe and a water level meter, each branch collecting box of the lower collecting box is provided with a water connection branch pipe which is connected and communicated with the water connection main pipe, the lower port of the water level meter is connected with the water connection main pipe, the upper port of the water level meter is connected with a steam connection pipe, and the other end of the steam connection pipe is connected and communicated with the upper part of the upper steam pocket. The upper end of the water level gauge is provided with a water level sensor.
The upper part of the water header pipe of the water level meter is connected with the water header pipe at the lower part of the water level meter (integrated with the water level sensor), and the steam header pipe at the upper part of the water level meter is connected and communicated with the two sides outside the upper steam drum.
The left and right pipe walls in this embodiment include: the left lower collecting box and the right lower collecting box are respectively communicated with the upper steam pocket upwards through a plurality of wall pipes, and adjacent pipes of the wall pipes are connected through fins to form a left pipe wall and a right pipe wall. The left and right pipe walls can also be provided with a plurality of inner steam raising pipes connected between the lower header and the upper steam drum. The wall pipe is an outer ascending steam pipe.
The left and right pipe walls in this embodiment may have the following structure: the upper part of the lower collecting box is provided with a middle collecting box, the middle collecting box is provided with collecting box sections which are in one-to-one correspondence with the collecting boxes of the lower collecting box, the lower collecting box is communicated with the middle collecting box through a plurality of lower wall pipes, the pipe pipes of the lower wall pipes are connected through connecting fins to form a lower pipe wall, the middle collecting box is communicated with the upper steam drum through a plurality of upper wall pipes, and the pipe pipes of the upper wall pipes are connected through connecting fins to form an upper pipe wall.
At least one layer of inner ascending steam pipe which is connected between the middle header and the upper steam drum and does not contain connecting fins is arranged in the upper pipe wall.
The smoke exhaust pipe is provided with a draught fan, and a silencer is arranged at the outlet of the draught fan, so that noise pollution is reduced.
1. Flue gas circulation of the evaporator:
1.1, the biomass fuel burns in the combustion chamber of evaporimeter, and the high temperature flue gas of production is discharged (first return journey) from the mouth of crossing of evaporimeter body, and the lower floor that gets into the flue gas condenser crosses the inlet flue of cigarette passageway.
1.2, high-temperature smoke discharged from the lower smoke passing channel enters a front smoke box (a second return stroke); and the smoke enters the inlet of the upper smoke passing channel through the front smoke box and is discharged from the smoke outlet (smoke outlet of the evaporator) of the upper smoke passing channel (third return stroke). Thereby completing the whole smoke circulation process from the fuel combustion to the smoke discharge.
2. Water supply cycle and heating cycle of evaporator:
2.1 cold water (purified water) enters the arc-shaped water tank through a water inlet on the upper part of the arc-shaped water tank on one side of the flue gas condenser, and is heated by the flue gas condenser, heated hot water enters the arc-shaped water tank on the other side of the flue gas condenser, and then is discharged from a hot water outlet on the upper part of the arc-shaped water tank on the other side and enters the water supply header on two sides of the evaporator body. And enters the water inlet branch pipes at two sides of the body through the water supply header (each water inlet branch pipe is provided with a control valve); then enters each component collection box through a water inlet branch pipe, is heated by the evaporator body and then turns into water vapor which enters the upper steam pocket of the evaporator.
2.2, the steam-water mixture entering the upper steam drum is output to steam equipment through a steam outlet of the evaporator after being separated by a steam-water separation device arranged in the upper steam drum. Thereby completing the whole heating cycle from cold water entry to steam output.
3. Safety control:
3.1 Water supply control
The water level of the evaporator body is automatically controlled through water level meters and water level sensors arranged on two sides of the evaporator body; when the water level of the evaporator body drops, under the electrical interlocking action of the water level sensors at the two sides and the electric feed pump, the electric feed pump automatically starts to supplement water for the evaporator body system; ensure the normal water level of the evaporator body.
3.2 pressure control
3.2.1, monitoring the operating pressure of the evaporator through a pressure gauge.
3.2.2, when the evaporator normally runs, the pressure controller and the pressure relief safety valve are in a static state; when the operating pressure of the evaporator rises and exceeds the set pressure, the pressure controller instantly cuts off the power supplies of the external blower and the external induced draft fan through the electric interlocking device, so that the external blower and the external induced draft fan stop supplying air and inducing air, and the rapid combustion of fuel in the hearth is stopped; the temperature of the hearth is reduced. Meanwhile, the pressure relief safety valve can be opened instantly for pressure relief; ensuring the safety. After the pressure is reduced to a normal value (no abnormal factor), each functional configuration can run normally.
Claims (9)
1. A fire biomass evaporimeter which characterized in that:
the device comprises a flue gas condenser and an evaporator body, wherein the evaporator body comprises an upper steam drum and a combustion chamber, the upper steam drum is arranged between the flue gas condenser and the combustion chamber, and the upper steam drum is provided with a steam outlet pipe;
the smoke condenser is provided with a condensation smoke box, the condensation smoke box is provided with an upper smoke passing channel and a lower smoke passing channel, the rear part of the lower smoke passing channel is provided with a smoke inlet, the rear part of the upper smoke passing channel is provided with a smoke outlet, the front part of the condensation smoke box is provided with a front smoke box communicated with the upper smoke passing channel and the lower smoke passing channel, the left end and the right end of the condensation smoke box are respectively provided with a water inlet box and a water outlet box, a plurality of water passing pipes are arranged in the upper smoke passing channel and the lower smoke passing channel, the water passing pipes are connected with the water inlet box and the water outlet box, the water inlet box and the water outlet box are communicated through the water passing pipes, the water inlet box is connected with a cold water inlet pipe, and the water outlet box is connected with a hot water outlet pipe;
the front part of the combustion chamber is provided with a furnace door and a feed inlet, the bottom of the combustion chamber is provided with a fire grate, two sides of the fire grate are provided with a left lower collecting box and a right lower collecting box, the left lower collecting box and the right lower collecting box are upwards connected with an upper steam drum through a left pipe wall and a right pipe wall, the top ends of the rear parts of the left pipe wall and the right pipe wall are provided with smoke passing openings, and the smoke passing openings are upwards communicated with smoke inlet openings of condensing smoke boxes;
the lower collecting box is formed by combining a plurality of sub collecting boxes side by side in sequence from front to back, water supply collecting boxes for supplying water to the left and right lower collecting boxes are arranged on the outer sides of the left and right pipe walls, each sub collecting box is connected with the water supply collecting boxes through a water inlet branch pipe, and water supply valves are arranged on the water supply branch pipes;
a hot water outlet pipe of the flue gas condenser is connected with the water supply header;
two water level monitoring devices are arranged on the outer sides of the left pipe wall and the right pipe wall.
2. The biomass-fired evaporator of claim 1, wherein: the left and right of the water supply header are respectively provided with one, and the two water supply headers are communicated through a water inlet transverse pipe.
3. The biomass-fired evaporator of claim 1, wherein: the lower collecting box is an integral pipe, and the whole pipe is divided into a plurality of sub-collecting boxes by grouping partition plates.
4. The biomass-fired evaporator of claim 1, wherein: the front wall and the rear wall of the combustion chamber are both provided with support pipes, and the two ends of each support pipe are respectively connected between the lower header pipe and the upper steam drum to form a water passing support pipe.
5. The biomass-fired evaporator of claim 1, wherein: the upper steam pocket is a tank body arranged at the top of the combustion chamber, the middle part of the tank body is provided with a steam-water separation mechanism, the steam-water separation mechanism comprises two steam-water separation pore plates arranged along the front and the back of the tank body, the two steam-water separation pore plates are oppositely inclined towards the center of the tank body from two sides, the intersecting section of the two steam-water separation pore plates is arranged in a V shape, and the intersecting part of the upper end of the pipe wall and the upper steam pocket is arranged below the steam-water separation pore plates.
6. The biomass-fired evaporator of claim 1, wherein: the water level monitoring device is provided with a water level meter water connection main pipe and a water level meter, each branch collecting box of the lower collecting box is provided with a water connection branch pipe which is connected and communicated with the water connection main pipe, a lower opening of the water level meter is connected with the water connection main pipe, an upper opening of the water level meter is connected with a steam connection pipe, and the other end of the steam connection pipe is connected and communicated with the upper part of the upper steam drum.
7. The biomass-fired evaporator of claim 1, wherein: the left lower collecting box and the right lower collecting box are respectively communicated with the upper steam pocket upwards through a plurality of wall pipes, and adjacent pipes of the wall pipes are connected through fins to form a left pipe wall and a right pipe wall.
8. The biomass-fired evaporator of claim 1, wherein: the upper part of the lower collecting box is provided with a middle collecting box, the middle collecting box is provided with collecting box sections which are in one-to-one correspondence with the collecting boxes of the lower collecting box, the lower collecting box is communicated with the middle collecting box through a plurality of lower wall pipes, the pipe pipes of the lower wall pipes are connected through connecting fins to form a lower pipe wall, the middle collecting box is communicated with the upper steam drum through a plurality of upper wall pipes, and the pipe pipes of the upper wall pipes are connected through connecting fins to form an upper pipe wall.
9. The biomass-fired evaporator of claim 8, wherein: at least one layer of inner ascending steam pipe which is connected between the middle header and the upper steam drum and does not contain connecting fins is arranged in the upper pipe wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261072.5U CN214172193U (en) | 2020-10-13 | 2020-10-13 | Biomass-fired evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261072.5U CN214172193U (en) | 2020-10-13 | 2020-10-13 | Biomass-fired evaporator |
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| Publication Number | Publication Date |
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| CN214172193U true CN214172193U (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022261072.5U Active CN214172193U (en) | 2020-10-13 | 2020-10-13 | Biomass-fired evaporator |
Country Status (1)
| Country | Link |
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| CN (1) | CN214172193U (en) |
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2020
- 2020-10-13 CN CN202022261072.5U patent/CN214172193U/en active Active
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