CN202683003U - High vacuum and constant negative pressure cleaning device - Google Patents
High vacuum and constant negative pressure cleaning device Download PDFInfo
- Publication number
- CN202683003U CN202683003U CN 201220185847 CN201220185847U CN202683003U CN 202683003 U CN202683003 U CN 202683003U CN 201220185847 CN201220185847 CN 201220185847 CN 201220185847 U CN201220185847 U CN 201220185847U CN 202683003 U CN202683003 U CN 202683003U
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- pipeline
- dust remover
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- dust
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Abstract
The utility model discloses a high vacuum and constant negative pressure cleaning device. A primary dust remover, a secondary dust remover and a tertiary dust remover are arranged, wherein the primary dust remover provided with an inverted cone diffusion cyclone dust removing device with a reflecting screen is connected with a first pipeline, the secondary dust remover provided with six small inverted cone diffusion cyclone dust removing devices with reflecting screens is connected with a second pipeline, the tertiary dust remover which is provided with a high density filter core air filter and attached with an air cleaning gun and a roots vacuum pump is connected with a third pipeline, unload valves at the bottom of the dust removers are respectively arranged in a dust storing box, an inlet of the primary dust remover is connected with the first pipeline, dust absorption points are uniformly distributed on the first pipeline, an outlet of the primary dust remover is connected with an inlet of the first pipeline, an outlet of the first pipeline is connected with an inlet of the secondary dust remover, an outlet of the secondary dust remover is connected with an inlet of the second pipeline, an outlet of the second pipeline is connected with an inlet of the tertiary dust remover, the outlet of the tertiary dust remover is communicated with the third pipeline and connected with the roots vacuum pump and an exhaust pipe, and a backwashing device is installed at the top of the tertiary dust remover.
Description
Technical field
The utility model relates to high-vacuum cleaning device, the indoor dust cleaning of this device especially applicable Power House, boiler room and large-scale coal handling system.
Background technology
According to the requirement of the big-and-middle-sized thermal power generation design specification of GB BG50660-2011 21.2.20 bar, the thermal power plant must be equipped with vacuum stripping system, with indoor a large amount of dust such as cleaning boiler room and coal handling systems in design process, keep the workplace, a clean environment is arranged.
High-vacuum cleaning device, be to utilize Roots high vacuum pump, produce high vacuum, connect factory building and each corner of boiler top by pipeline, by cleaning head with in the dust intake line, again by high-efficiency dust remover and air cleaner, dust is reclaimed, enter combustion system and burn again or enter ash disposal system, can not produce secondary pollution to the workshop, in the boiler maintenance process, can clean the boiler internal dust stratification, reduce the dust harzard to the staff.Though at present domestic have several to produce this product, without national standard, can't satisfy the operation field requirement on the performance.
The clearing apparatus of the high vacuum of the utility model design can in 100 meters scopes up and down, be with 5-7 vacuum cleaning points; Structure is except dust sucting pipeline, set up three-level dust removal system: the first order adopts the back taper diffusion type cyclone dust collector with radiation shield, the inverted cone-shaped diffusion type cyclone dust collector assembly of six mini zone radiation shields is adopted in the second level, the third level is adopted the air cleaner of high density filter core, and attached air cleaning big gun, ensure that vavuum pump (roots blower) is not worn; This emission gases conforms to national environmental standard, has important use value.
Summary of the invention
Order of the present utility model is: the clearing apparatus of the high vacuum of design, and set up three-level dust removal system and vaccum pump motor is changed by converter plant control, realized efficiently dust removing effects, for the safety and environmental protection of enterprise has been produced positive impact.
The purpose of this utility model is achieved in that the clearing apparatus of the permanent negative pressure of a kind of high vacuum, and this device is made of fixed support, connecting pipe, deduster, Roots vaccum pump, blast pipe, back washing device; Being installed with one group at the support 1 that is fixed in ground goes to the bottom and is tapered deduster, be divided into primary dust removing device 2, secondary ash collector 5, three-stage dust catcher 8, connected by pipeline 4,6,9 between the deduster 2,5,8, the unloading valve of deduster bottom places respectively in the dust storage tank; The import of primary dust removing device 2 is connected with the pipeline of uniform dust sucting point 3, the import in primary dust removing device 2 outlet connecting pipe roads 4, the outlet of pipeline 4 connects the import of secondary ash collector 5, the import in the outlet connecting pipe road 6 of secondary ash collector 5, and the outlet of pipeline 6 connects the import of three-stage dust catcher 8; Wherein the outlet of deduster 8 connects pipeline 9 connection Roots vaccum pumps 10, blast pipe 11, at the top of deduster 8 back washing device 7 is installed.
High vacuum dust exhaust apparatus of the present utility model, vaccum pump motor changed by converter plant control, system utilizes PLC to pass through a 75KW heavy duty frequency converter, the Roots vaccum pump of a 75KW of control, adopt frequency conversion PID control principle, automatically revise the frequency values of frequency converter, realize permanent the aspiration of negative pressure effect; The maximum working pressure (MWP) of this type of frequency converter i.e. (50HZ), i.e. 7 suction nozzle service pressures; Pressure divergence value during by system works is regulated the working speed of Roots vaccum pump by the output frequency of PLC output analog quantity control frequency converter, constant with the vacuum that guarantees whole pipe network system.In addition frequency converter effectively saves energy belong to the environmental protection and energy saving product, effectively protect the service life of motor and Roots vaccum pump.
The 3-stage dust-removal standard of structure of the present utility model: the first order adopts the back taper diffusion type cyclone dust collector with radiation shield, the inverted cone-shaped diffusion type cyclone dust collector assembly of six mini zone radiation shields is adopted in the second level, the third level is adopted the air cleaner of high density filter core, and attached air cleaning big gun, ensure that vavuum pump (roots blower) is not worn; With the national standard of discharge air-borne dust content less than 50 mg/NM3; Show technological progress.
Description of drawings
Accompanying drawing is apparatus structure schematic diagram of the present utility model;
As shown in the figure: support-1, primary dust removing device-2, secondary ash collector-5, three-stage dust catcher-8, dust sucting point-3, pipeline-4,6,9, Roots vaccum pump-10, blast pipe-11, back washing device-7.
The specific embodiment
Embodiment
One, equipment is installed
Be fixed on the ground support, one group of deduster is installed, dust storage tank is laid in the bottom; The deduster on its top is divided into primary dust removing device, secondary ash collector, three-stage dust catcher; Wherein the import of primary dust removing device is connected with the pipeline of uniform dust sucting point, and import is the inverted trapezoidal air intake vent, in establish radiation shield, suck dust; The primary dust removing device adopts the back taper diffusion type cyclone dust collector with radiation shield, realizes one-time dedusting, and dust is in valve is deposited to ash storage box; The outlet of primary dust removing device connects secondary ash collector by pipeline, and second level deduster adopts the inverted cone-shaped diffusion type cyclone dust collector assembly of six mini zone radiation shields, realizes final dusting, and dust is in valve is deposited to ash storage box; The outlet of secondary ash collector connects three-stage dust catcher by pipeline, and the third level is adopted the air cleaner of high density filter core, and attached air cleaning big gun, ensures that vavuum pump (roots blower) is not worn, and realizes 3-stage dust-removal, and dust is in valve is deposited to ash storage box.
Two, equipment performance
1) roots blower is selected the Japanese ANLET H250 of Co., Ltd. B type drawing-in type vavuum pump, pressure-68KPa, and 3828M exerts oneself
3/ H.Power-75Kw.
2) one-level is single deduster, and secondary is combined dust remover.To greater than 10 μ m floating dust and floating dusts, the single-stage efficiency by inputoutput test is greater than 95.8%; Two-stage overall efficiency 99.2%; Single-stage dust remover resistance 0.18-0.2KPa; Best air quantity 2500M
3/ H.
3) third level is 3 μ m air filters, and every work is once cleaned big gun by compressed air immediately after the shutdown and carried out the automatic back blow cleaning.
4) ash bucket is divided into the Self-closing lock dust storage tank, puts ash after the shutdown.
5) defeated ash supervisor Φ 219 Χ 8 arms are respectively Φ 159 Χ 6, Φ 108 Χ 5.
6) duct size Φ 50 Χ 3, suction nozzle width 450mm, hose length is less than 20 meters.Each is to establish self-closing valve and y-type filter on the head.
7) 120 meters of scopes around the scope of application, 50 meters of height.
[0019] three, equipment operating
Motor operation
(1) the Roots vacuum pump motor changes by Frequency Converter Control: in the Roots vaccum pump starting process, change soft start into, increase gradually rotating speed, ensure that Roots vaccum pump and motor load are controlled in the safe range; When normal operation, vavuum pump import negative pressure is set in a certain fixed range, when using cleaner head quantity few, vavuum pump import negative pressure increases, and automatic reduction falls in motor speed, and holding vacuum pump import negative pressure is roughly constant; When using cleaner head quantity many, vavuum pump import negative pressure reduces, and motor speed will increase automatically, recovers vavuum pump import negative pressure and remains in the setting range.
(2) increase B/P EGR Back Pressure Transducer EGR by the PLC control system electrical installation that be connected corresponding to frequency converter, implement by frequency converter Roots vaccum pump to be carried out frequency modulation by setting negative pressure value, change motor speed;
Set up the PLC control system, to the motor overheating overcurrent, the vavuum pump overtemperature is implemented protection;
By the PLC control system, clean big gun by compressed air immediately after the shutdown third level air cleaner is carried out the automatic back blow cleaning;
By the PLC control system, behind the motor stopping, open the ash bucket ash-removing valve and put ash;
Set up touch-screen, set the PLC control program, complete machine is operated, and at touch-screen product description and operational procedure are set.
Claims (1)
1. the clearing apparatus of the permanent negative pressure of a high vacuum, it is characterized in that: this device is made of fixed support, connecting pipe, deduster, Roots vaccum pump, blast pipe, back washing device; Be installed with one group and go to the bottom and be tapered deduster being fixed in the support on ground (1), be divided into primary dust removing device (2), secondary ash collector (5), three-stage dust catcher (8); Wherein the primary dust removing device (2) with the back taper diffusion type whirlwind of radiation shield is connected with the first pipeline (4), light breeze deduster (5) with the inverted cone-shaped diffusion type whirlwind of six mini zone radiation shields is connected with second pipe (6), deduster (8) with the air cleaner of high density filter core and attached air cleaning big gun, Roots vaccum pump is connected with the 3rd pipeline (9), and the unloading valve bottom the deduster places respectively in the dust storage tank; The import of primary dust removing device (2) is connected with the first pipeline 4 of uniform dust sucting point (3), primary dust removing device (2) outlet connects the import of the first pipeline (4), the outlet of the first pipeline (4) connects the import of secondary ash collector (5), the outlet of secondary ash collector (5) connects the import of second pipe (6), and the outlet of second pipe (6) connects the import of three-stage dust catcher (8); Wherein the outlet of three-stage dust catcher (8) connects the 3rd pipeline (9) and connects Roots vaccum pump (10), blast pipe (11), at the top of three-stage dust catcher (8) back washing device (7) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185847 CN202683003U (en) | 2012-04-27 | 2012-04-27 | High vacuum and constant negative pressure cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185847 CN202683003U (en) | 2012-04-27 | 2012-04-27 | High vacuum and constant negative pressure cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202683003U true CN202683003U (en) | 2013-01-23 |
Family
ID=47538680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220185847 Expired - Fee Related CN202683003U (en) | 2012-04-27 | 2012-04-27 | High vacuum and constant negative pressure cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202683003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771505A (en) * | 2013-09-09 | 2016-07-20 | 清远先导材料有限公司 | Dust collector |
-
2012
- 2012-04-27 CN CN 201220185847 patent/CN202683003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771505A (en) * | 2013-09-09 | 2016-07-20 | 清远先导材料有限公司 | Dust collector |
| CN105771505B (en) * | 2013-09-09 | 2017-07-28 | 清远先导材料有限公司 | Dust arrester installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180427 |