CN214345059U - Boiler waste gas treatment device - Google Patents
Boiler waste gas treatment device Download PDFInfo
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- CN214345059U CN214345059U CN202120129804.7U CN202120129804U CN214345059U CN 214345059 U CN214345059 U CN 214345059U CN 202120129804 U CN202120129804 U CN 202120129804U CN 214345059 U CN214345059 U CN 214345059U
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Abstract
The utility model discloses a boiler exhaust treatment device, including box, ash bucket, filter bag, poppet valve, pulse blower and a plurality of venturi tube, the box is including casing and filter bag, and the casing is provided with waste gas import, dust export, net gas export and the entry of breathing in, and the baffle is installed on the casing to separate into mutually independent last cavity and lower cavity with the inner chamber of box, a plurality of gas outlets of baffle and a plurality of gas outlet, filter bag and baffle sealing connection, and with gas outlet and gas outlet intercommunication, the filter bag passes through gas outlet and last cavity intercommunication, and the poppet valve is installed on the casing to set up in net gas outlet department, be used for controlling opening and sealing of net gas export, pulse blower and the entry intercommunication of breathing in, the venturi tube sets up in gas outlet department. According to the utility model discloses a boiler exhaust treatment device can improve dust collection efficiency, prolongs the life of filter bag, improves production efficiency.
Description
Technical Field
The utility model relates to a boiler aftertreatment technical field, in particular to boiler exhaust treatment device.
Background
Due to the requirements of factory production, domestic heating and hot water supply, the boiler becomes an important heat energy power device, and the application range is very wide. The waste gas generated in the combustion process of the boiler carries a large amount of dust and harmful gases, and the waste gas can be discharged into the air only after being purified and post-treated. Among them, the dust removal system is an important device in a boiler exhaust gas treatment apparatus.
In the existing boiler waste gas treatment device, the dust removal mode comprises a chambered back blowing mode and a pulse blowing mode. However, the chamber back blowing mode has insufficient ash removal strength, and the service life of the filter bag is reduced. In the pulse blowing mode, the dust removal and the filtration are simultaneously carried out, so that the dust collection efficiency is low. Therefore, the existing boiler exhaust gas treatment device cannot meet the increasing demand of boiler heat supply.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a boiler exhaust treatment device can improve dust collection efficiency, prolongs the life of filter bag, improves production efficiency.
According to the utility model discloses boiler exhaust treatment device, include: the box body comprises a shell and a partition plate; the shell is provided with a waste gas inlet, a dust outlet, a purified gas outlet and a suction inlet; the baffle is arranged on the shell and divides the inner cavity of the box body into an upper cavity and a lower cavity which are mutually independent, and the baffle is provided with a plurality of air blowing openings and a plurality of air outlets; the waste gas inlet is communicated with the lower chamber; the dust outlet is arranged on the bottom wall of the lower chamber and is communicated with the lower chamber; the purified gas outlet is communicated with the upper chamber; the air suction inlet is arranged on the side wall of the upper chamber and is communicated with the air blowing port through an air blowing pipe; the dust hopper is arranged below the box body and communicated with the dust outlet; the filter bag is connected with the partition plate in a sealing manner and is communicated with the air blowing port and the air outlet; the filter bag is communicated with the upper cavity through the air outlet; a poppet valve mounted on the housing and disposed at the exhaust gas inlet for controlling opening and closing of the exhaust gas inlet; a pulse blower in communication with the suction inlet; the venturi tubes are arranged at the air blowing openings.
According to the utility model discloses boiler exhaust treatment device has following technological effect at least: the lifting valve is arranged, after a certain amount of waste gas is filtered by the filter bag, the lifting valve closes the waste gas inlet, the waste gas flow is cut off, and then dust cleaning treatment is carried out, so that the step-by-step treatment of waste gas filtering and blowing dust cleaning is realized, and the dust removal efficiency is improved; high-speed highly compressed injection air current that pulse jetting ware jetted out strengthens the velocity of flow through the venturi tube after, forms one and is equivalent to the induced air current of injecting the air current several times, enters into the filter bag for the instantaneous sharp inflation of filter bag, thereby makes the outside dust of filter bag drop from the sack outside, strengthens air current intensity through the venturi tube, can improve the deashing effect, thereby improves the life of filter bag, has reduced compressed air's quantity simultaneously, the energy can be saved, improves production efficiency. Therefore, the utility model provides a boiler exhaust treatment device can improve dust collection efficiency, prolongs the life of filter bag, improves production efficiency.
According to some embodiments of the present invention, the exhaust system further comprises an exhaust manifold and a plurality of exhaust branches; the number of the box body, the ash bucket, the filter bag, the lift valve and the pulse blower is multiple; the exhaust gas main pipe is used for sucking exhaust gas; the waste gas branch pipe is used for communicating the waste gas main pipe with the waste gas inlet.
According to some embodiments of the utility model, the box is still including keeping out the wind the swash plate, keep out the wind the swash plate install in on the casing, and set up in the inner chamber of box, and set up in waste gas import department, be used for the guide waste gas flow direction the ash bucket.
According to some embodiments of the invention, the pulse blower comprises an air bag and a plurality of pulse valves; the air bag is used for storing compressed air and is communicated with the air blowing pipe; the pulse valve is arranged between the air bag and the air blowing pipe.
According to some embodiments of the utility model, still include the velocity of flow detector, the velocity of flow detector set up in net gas exit department.
According to some embodiments of the utility model, still including two suction fans, two the suction fan set up respectively in waste gas import with net gas outlet department.
According to some embodiments of the present invention, the poppet valve comprises a telescopic cylinder and a telescopic block, the telescopic block being mounted on the housing; the telescopic cylinder is used for controlling the telescopic block to move so as to control the communication and the sealing of the waste gas inlet.
According to some embodiments of the invention, the housing comprises a high temperature resistant coating.
According to some embodiments of the present invention, the device further comprises an access door; the shell is provided with an inlet and an outlet; the inlet and the outlet are communicated with the lower cavity; the access door is used for controlling the opening and the closing of the access.
According to some embodiments of the utility model, the business turn over door through high temperature resistant silica gel strip with casing sealing connection.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic front view of a boiler exhaust gas treatment device according to an embodiment of the present invention;
fig. 2 is a schematic plan view of a boiler exhaust gas treatment device according to an embodiment of the present invention.
Reference numerals:
a boiler waste gas treatment device 100, a suction fan 110,
A box body 200, a shell 210, an exhaust gas inlet 211, a clean gas outlet 212, a suction gas inlet 213, a clapboard 220, a blowing port 221, a gas outlet 222, an upper chamber 230, a lower chamber 240, a blowing pipe 250, a wind shielding inclined plate 260, an ash bucket 300, a dust collecting device,
A filter bag 400,
A poppet valve 500,
A pulse blower 600, an air bag 610, a pulse valve 620,
A venturi 700.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
A boiler exhaust gas treatment device 100 according to an embodiment of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, a boiler exhaust gas treatment device 100 according to an embodiment of the present invention includes a tank 200, an ash bucket 300, a filter bag 400, a poppet valve 500, a pulse blower 600, and a plurality of venturi tubes 700.
As shown in fig. 1, the case 200 includes a housing 210, a partition 220 and a filter bag 400, the housing 210 is provided with an exhaust gas inlet 211, a dust outlet, a clean gas outlet 212 and a plurality of suction gas inlets 213, the partition 220 is mounted on the housing 210 and divides an inner cavity of the case 200 into an upper chamber 230 and a lower chamber 240 which are independent of each other, as shown in fig. 2, the partition 220 is provided with a plurality of gas blowing ports 221 and a plurality of gas outlets 222, the exhaust gas inlet 211 is communicated with the lower chamber 240, the dust outlet is disposed on a bottom wall of the lower chamber 240 and is communicated with the lower chamber 240, the clean gas outlet 212 is communicated with the upper chamber 230, the suction gas inlets 213 are disposed on a side wall of the upper chamber 230 and is communicated with the gas blowing ports 221 through a gas blowing pipe 250, and a dust hopper 300 is disposed below the case 200 and is communicated with the dust outlet; the filter bag 400 is hermetically connected with the partition plate 220 and is communicated with the air blowing port 221 and the air outlet 222; the filter bag 400 is communicated with the upper chamber 230 through the air outlet 222; a poppet valve 500 is mounted on the housing 210 and disposed at the net gas outlet 212 for controlling the opening and closing of the net gas outlet 212; the pulse blower 600 communicates with the suction inlet 213; the venturi 700 is provided at the air blowing port 221.
Exhaust gas generated by combustion of the boiler enters the lower chamber 240 through the exhaust gas inlet 211, is filtered of dust by the filter bag 400, flows into the upper chamber 230 through the gas outlet 222, and is discharged through the clean gas outlet 212. When the waste gas is filtered to a certain amount, the poppet valve 500 seals the waste gas inlet 211 to prevent the waste gas from entering the lower chamber 240, and the high-speed and high-pressure injection airflow ejected by the pulse blower 600 forms an induction airflow which is several times of the injection airflow after the flow velocity is enhanced by the venturi tube 700 and enters the filter bag 400, so that the filter bag 400 is instantaneously and rapidly expanded, the dust outside the filter bag 400 falls off from the outside of the cloth bag, and the ash removal operation is completed.
The boiler exhaust gas treatment device 100 of the embodiment of the utility model is provided with the poppet valve 500, when the filter bag 400 filters a certain amount of exhaust gas, the poppet valve 500 closes the exhaust gas inlet 211, cuts off the exhaust gas flow, and then carries out dust cleaning treatment, thereby realizing the step-by-step treatment of exhaust gas filtration and blowing ash cleaning separation, and improving the dust removal efficiency; high-speed high-pressure injection air current that pulse blower 600 jetted out, after strengthening the velocity of flow through venturi tube 700, form one and be equivalent to the induced air current of injecting the air current several times, enter into filter bag 400, make the instantaneous sharp inflation of filter bag 400, thereby make the outside dust of filter bag 400 drop from the sack outside, strengthen air current intensity through venturi tube 700, can improve the deashing effect, thereby improve the life of filter bag 400, compressed air's quantity has been reduced simultaneously, the energy can be saved, and the production efficiency is improved. Therefore, the utility model provides a boiler exhaust treatment device 100 can improve dust collection efficiency, prolongs the life of filter bag 400, improves production efficiency.
In some embodiments of the present invention, the exhaust manifold and the exhaust branch pipes are further included, the number of the box 200, the ash hopper 300, the filter bag 400, the poppet valve 500 and the pulse blower 600 is plural, the exhaust manifold is used for sucking the exhaust gas, and the exhaust branch pipes are used for communicating the exhaust manifold and the exhaust inlet 211. Set up a plurality of boxes 200 to through the waste gas supply condition of each box 200 of poppet valve 500 control, can realize that each box 200 filters waste gas in turn, also can follow up the boiler combustion condition, open a plurality of box 200, in order to realize the effective processing to waste gas, improve dust collection efficiency. In addition, when the dust of a certain box body 200 needs to be removed or the filter bag 400 needs to be replaced, other box bodies 200 can be opened, so that continuous effective treatment of waste gas is realized, and the production efficiency is improved.
In some embodiments of the present invention, the exhaust inlet 211 is disposed at a lower portion of the housing 210. When the exhaust gas enters the bottom of the lower chamber 240 from the exhaust gas inlet 211, it slowly flows upward to reach the filter bag 400. In the rising process of the waste gas, the dust with heavier mass can naturally fall under the important action, thereby achieving the effect of pre-dedusting.
In some embodiments of the present invention, as shown in fig. 1, the box 200 further includes a wind shielding inclined plate 260, which is installed on the housing 210 and disposed in the inner cavity of the box 200 and disposed at the waste gas inlet 211 for guiding the waste gas to flow to the ash hopper 300. When the exhaust gas enters the lower chamber 240 from the exhaust gas inlet 211, the exhaust gas flow first flows downward and then slowly flows upward under the guidance of the wind shielding sloping plate 260 to reach the filter bag 400. In the rising process of the waste gas, larger dust particles can naturally fall under the important action of the dust particles, so that the effect of pre-dedusting is achieved.
In some embodiments of the present invention, as shown in fig. 2, the pulse blower 600 includes an air bag 610 and a plurality of pulse valves 620; the air bag 610 is used for storing compressed air and is communicated with the air blowing pipe 250; a pulse valve 620 is provided between the air bag 610 and the insufflation tube 250. Through pulse valve 620 in every gas blow pipe 250 for gas blow pipe 250 is direct to be connected with air bag 610, thereby increases the velocity of flow that the induced airflow that pulse blowing ware 600 jetted out, makes filter bag 400 expansion rate faster, thereby makes the outside dust of filter bag 400 drop from the sack outside more easily, improves the deashing effect, improves the life of filter bag 400. When the injection air flow flows into the blowing pipes 250 from the blowing main pipe, breakage easily occurs and the flow rate of the injection air flow is reduced. The above embodiment is only one of the preferred embodiments of the present invention.
In some embodiments of the present invention, the device further comprises a flow rate detector disposed at the clean gas outlet 212. Other flow rates at the clean gas outlet 212 are detected by the flow rate detector, so that the dust accumulation condition outside the filter bag 400 is judged, the dust is conveniently removed in time or the filter bag 400 is replaced, and the production efficiency is improved.
In some embodiments of the present invention, the exhaust gas purification device further comprises two suction fans 110, and the two suction fans 110 are respectively disposed at the exhaust gas inlet 211 and the clean gas outlet 212. By arranging the suction fan 110, the gas flow speed is accelerated, and the production efficiency is improved.
In some embodiments of the present invention, the poppet valve 500 includes a telescopic cylinder and a telescopic block, the telescopic block being mounted on the housing 210; the telescopic cylinder is used for controlling the telescopic block to move so as to control the communication and the sealing of the waste gas inlet 211. And the telescopic cylinder is adopted, so that the cost is low and the maintenance is convenient. It is conceivable that servo motor control may also be employed, and the above embodiment is only one of the preferred aspects of the present invention.
In some embodiments of the present invention, the housing 210 includes a high temperature resistant coating. The high-temperature resistant coating is arranged, so that the service life can be prolonged, and the production efficiency is improved.
In some embodiments of the present invention, the door further comprises an access door; the housing 210 is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the lower chamber 240; the access door is used for controlling the opening and closing of the access. The inlet and the outlet are arranged, so that the filter bag 400 can be conveniently replaced and maintained.
In some embodiments of the present invention, the access door is hermetically connected to the housing 210 through a high temperature resistant silicone strip. Set up high temperature resistant silica gel strip for sealed effect is better, is favorable to guaranteeing effective the going on of exhaust-gas treatment, thereby improves production efficiency.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A boiler exhaust gas treatment device, comprising:
the box body comprises a shell and a partition plate; the shell is provided with a waste gas inlet, a dust outlet, a purified gas outlet and a suction inlet; the partition plate is arranged on the shell and divides the inner cavity of the box body into an upper cavity and a lower cavity which are independent of each other; the baffle is provided with a plurality of air blowing openings and a plurality of air outlets; the waste gas inlet is communicated with the lower chamber; the dust outlet is arranged on the bottom wall of the lower chamber and is communicated with the lower chamber; the purified gas outlet is communicated with the upper chamber; the air suction inlet is arranged on the side wall of the upper chamber and is communicated with the air blowing port through an air blowing pipe;
the dust hopper is arranged below the box body and communicated with the dust outlet;
the filter bag is connected with the partition plate in a sealing manner and is communicated with the air blowing port and the air outlet; the filter bag is communicated with the upper cavity through the air outlet;
a poppet valve mounted on the housing and disposed at the exhaust gas inlet for controlling opening and closing of the exhaust gas inlet;
a pulse blower in communication with the suction inlet;
the venturi tubes are arranged at the air blowing openings.
2. The boiler exhaust gas treatment device according to claim 1, further comprising an exhaust gas main and a plurality of exhaust gas branch pipes; the number of the box body, the ash bucket, the filter bag, the lift valve and the pulse blower is multiple; the exhaust gas main pipe is used for sucking exhaust gas; the waste gas branch pipe is used for communicating the waste gas main pipe with the waste gas inlet.
3. The boiler waste gas treatment device according to claim 1, wherein the box further comprises a wind shielding inclined plate mounted on the housing and disposed in the inner cavity of the box and at the waste gas inlet for guiding the waste gas to the ash hopper.
4. The boiler exhaust gas treatment device according to claim 1, wherein the pulse blower includes a gas bag and a plurality of pulse valves; the air bag is used for storing compressed air and is communicated with the air blowing pipe; the pulse valve is arranged between the air bag and the air blowing pipe.
5. The boiler exhaust gas treatment device according to claim 1, further comprising a flow rate detector provided at the clean gas outlet.
6. The boiler exhaust gas treatment device according to claim 1, further comprising two suction fans, wherein the two suction fans are respectively disposed at the exhaust gas inlet and the clean gas outlet.
7. The boiler exhaust gas treatment device according to claim 1, wherein the poppet valve includes a telescopic cylinder and a telescopic block, the telescopic block being mounted on the housing; the telescopic cylinder is used for controlling the telescopic block to move so as to control the communication and the sealing of the waste gas inlet.
8. The boiler exhaust gas treatment device according to claim 1, wherein the housing includes a high temperature resistant coating.
9. The boiler exhaust gas treatment device according to claim 1, further comprising an access door; the shell is provided with an inlet and an outlet; the inlet and the outlet are communicated with the lower cavity; the access door is used for controlling the opening and the closing of the access.
10. The boiler exhaust gas treatment device according to claim 9, wherein the access door is sealingly connected to the housing by a high temperature resistant silicone strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129804.7U CN214345059U (en) | 2021-01-18 | 2021-01-18 | Boiler waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129804.7U CN214345059U (en) | 2021-01-18 | 2021-01-18 | Boiler waste gas treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN214345059U true CN214345059U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120129804.7U Active CN214345059U (en) | 2021-01-18 | 2021-01-18 | Boiler waste gas treatment device |
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| CN (1) | CN214345059U (en) |
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2021
- 2021-01-18 CN CN202120129804.7U patent/CN214345059U/en active Active
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