CN2928143Y - Rotary micro dust generator - Google Patents
Rotary micro dust generator Download PDFInfo
- Publication number
- CN2928143Y CN2928143Y CN 200620093887 CN200620093887U CN2928143Y CN 2928143 Y CN2928143 Y CN 2928143Y CN 200620093887 CN200620093887 CN 200620093887 CN 200620093887 U CN200620093887 U CN 200620093887U CN 2928143 Y CN2928143 Y CN 2928143Y
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- CN
- China
- Prior art keywords
- shaft
- dust
- valve body
- feeding valve
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Disclosed is a rotary trace dust occurrence device relating to a trace dust occurrence device which is used in a fire detection alarming technology field, comprising a rotating feeding valve, a variable-frequency motor, a hopper, a shaft joint, a blowing nozzle and a base frame. The rotating feeding valve is a cylinder which comprises a feeding valve body and a valve shaft, the valve shaft is arranged in the feeding valve body, a socket which even is arranged on the valve shaft, an upper shed of the feeding valve body is linked together with the hopper, an under shed is a dust falling export, the blowing nozzle is fixed on the under shed of the feeding valve body, the valve shaft though the shaft joint is connected with a main shaft of the variable-frequency motor. Because the socket arranged on the valve shaft can keep a shape of the dust sample unchanging, a rotating speed of the rotating feeding valve controlled by the variable-frequency motor can control a charging amount accurately, the compressed air though the blowing nozzle is entered into the feeding valve body can blown about the falling dust and avoid the dust settling down.
Description
Technical field:
The utility model relates to a kind of micro-dust generating means that uses in the fire detecting and alarm technical field.
Background technology:
In the practical application of automatic fire alarm system, airborne dust is that to cause the false alarm of fire detector be a major reason., be to improve the important means that fire detector designed and estimated its engineering adaptability how to the assessment that experimentizes of the ability of fire detector opposing dust wrong report.Carry out above-mentioned experiment, the device that produces dust must be arranged, this device must satisfy the instructions for use of fire detector Performance Evaluation, does not does not also design and Implement suitable micro-dust generating means at this type of application both at home and abroad at present.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the utility model provides a kind of micro-dust generating means, make dust keep the initial size of dirt sample, avoid occurring situations such as the division of dust or adhesion changes dirt sample particle diameter as far as possible, inlet amount and speed are accurately controlled, satisfied in the anti-dust performance test of fire detector the generation concentration of dust and the specification requirement of speed.The purpose of this utility model is achieved through the following technical solutions: a kind of rotating micro dust generating means, it is made of rotary feeding valve, variable-frequency motor, hopper, shaft coupling, blow gun, base, described rotary feeding valve is cylindric, comprise charging valve body and valve shaft, valve shaft is installed in the charging valve body, on valve shaft, be shaped on uniform groove, the upper shed of charging valve body communicates with hopper, under shed is that dust drops out mouth, blow gun is fixed on charging valve body lower opening, and valve shaft is connected with the main shaft of variable-frequency motor by shaft coupling.
The beneficial effects of the utility model: the utility model adopts said structure, dust enters the charging valve body by hopper, owing on valve shaft, be shaped on groove, can keep the shape of dirt sample can not change, the velocity of rotation of rotary feeding valve is controlled by variable-frequency motor, can accurately control feeding quantity, and compressed air enters in the charging valve body by blow gun, the dust that drops out is dispelled, prevent dust settling.
Description of drawings:
Fig. 1 is the structural representation of rotating micro dust generating means;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the cutaway view of the utility model charging valve body;
Fig. 4 is the utility model valve shaft structural representation;
Fig. 5 is that the A of Fig. 4 is to view;
The specific embodiment:
A kind of rotating micro dust generating means, it is made of rotary feeding valve, variable-frequency motor 9, hopper 6, shaft coupling 5, blow gun 7, base 10, the rotary feeding valve comprises charging valve body 1 and valve shaft 2, charging valve body 1 is installed on the base 10, and charging valve body 1 is cylindric, is made up of A and B two parts, the A of charging valve body, B two parts are fixed together by screw, cavity 13 of inner formation, valve shaft 2 and valve shaft core 3 are fixed together, and are installed in the cavity 13.The stepped hole 15 of charging valve body 1 inside is connected with valve shaft core 3 with valve shaft 2 by axle sleeve 4 with 17, is shaped on uniform groove 11 on valve shaft 2, and the cavity 13 top openings 14 of charging valve body 1 inside are connected with hopper 6, the discharging opening 8 of lower opening 16 straight-through dust.Blow gun 7 is fixed under shed 16 places of charging valve body, valve shaft 2 is connected with the main shaft of variable-frequency motor 9 by shaft coupling 5, variable-frequency motor 9 drives valve shaft 2 and rotates, dust is dropped out by discharging opening 8, compressed air carries out disperse by 7 pairs of dust that drop out of blow gun, prevent dust settling, thereby realize dust is added the control of quality and speed.
Claims (1)
1, a kind of rotating micro dust generating means, it is characterized in that: it is made of rotary feeding valve, variable-frequency motor, hopper, shaft coupling, blow gun, base, described rotary feeding valve is cylindric, comprise charging valve body and valve shaft, valve shaft is installed in the charging valve body, is shaped on uniform groove on valve shaft, the upper shed of charging valve body communicates with hopper, under shed is that dust drops out mouth, and blow gun is fixed on charging valve body lower opening, and valve shaft is connected with the main shaft of variable-frequency motor by shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093887 CN2928143Y (en) | 2006-11-01 | 2006-11-01 | Rotary micro dust generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093887 CN2928143Y (en) | 2006-11-01 | 2006-11-01 | Rotary micro dust generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2928143Y true CN2928143Y (en) | 2007-08-01 |
Family
ID=38306536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620093887 Expired - Fee Related CN2928143Y (en) | 2006-11-01 | 2006-11-01 | Rotary micro dust generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2928143Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935006A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | A kind of experimental rig and method for evaluating and testing the dirty function of spot-type smoke detector report |
| CN106935005A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | Evaluate and test the experimental rig and method of the anti-dust glitch performance of smoke detector |
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
-
2006
- 2006-11-01 CN CN 200620093887 patent/CN2928143Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935006A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | A kind of experimental rig and method for evaluating and testing the dirty function of spot-type smoke detector report |
| CN106935005A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | Evaluate and test the experimental rig and method of the anti-dust glitch performance of smoke detector |
| CN106935006B (en) * | 2017-05-09 | 2022-06-28 | 应急管理部沈阳消防研究所 | Test device and method for evaluating dirty reporting function of point-type smoke fire detector |
| CN106935005B (en) * | 2017-05-09 | 2022-06-28 | 应急管理部沈阳消防研究所 | Test device and method for evaluating dust transient interference resistance of smoke detector |
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20131101 |