A dust concentration instrument calibration apparatus

Abstract

The utility model discloses a dust concentration instrument calibration equipment, including dust wind box and instrument body, the sampling pipe of extension in dust wind box is connected to the instrument body, the side surface of dust wind box is connected with dust removal tank and operation box, and the dust wind box is provided with the sliding mechanism corresponding with dust removal tank, is equipped with rotary sampling assembly on the sliding mechanism, is equipped with cleaning, dust removal mechanism in dust removal tank, the dust wind box in the corresponding position of operation box is slidably installed with the beta ray dust concentration measuring instrument of sampling pipe, and the dust wind box still is equipped with light scattering concentration detector. Realized rotary sampling assembly sampling end in sampling neutralization after sampling commutation, like this after sampling end, dust will flow with airflow, and there is cleaning and dust removal work after sampling, guarantees the precision of instrument body calibration, also realized the operation of not needing detection personnel to enter dust wind box, guarantees the continuity and efficiency of detection work, reaches the real -time monitoring of dust concentration fluctuation situation simultaneously.

Claims

1. A dust concentration instrument calibration apparatus comprising a dust fan and an instrument body, characterized by; The instrument body is connected to a sampling tube that extends into the dust box; The side of the dust blower is connected to a dust removal box. A sliding mechanism is provided inside the dust blower. A rotary sampling assembly is provided on the sliding mechanism. The dust removal box is located in the sliding direction of the sliding mechanism. A cleaning and dust removal mechanism is provided inside the dust removal box. The side of the dust box is also connected to an operation box. A beta-ray dust concentration measuring instrument is slidably installed in the dust box corresponding to the operation box. A sampling tube is connected to the beta-ray dust concentration measuring instrument, and the inlet of the sampling tube faces the direction of the dust source. A light scattering concentration detector is also provided in the dust box.

2. A dust concentration instrument calibration apparatus as claimed in claim 1, characterized in that: The rotary sampling assembly includes a sampling head body with an internal air passage and a quick-release assembly type. One end of the sampling head body is threadedly connected to an air intake connector, and the other end is threadedly installed with an air inlet. The dust collection box is also equipped with a vacuum generating mechanism connected to the air intake connector. It also includes a mounting base on which a rotating seat driven by a power element is rotatably mounted. The rotating seat is fitted onto the sampling head body and clamped and positioned between the sampling head body and the air intake connector.

3. A dust concentration instrument calibration apparatus as claimed in claim 2, characterised in that: The sampling head body includes a connecting tube sleeve that is threadedly connected to the air intake connector. A sleeve is inserted and sealed on the connecting tube sleeve. A first pressure head is threaded on the sleeve. A second pressure head is threadedly connected to the first pressure head. The air intake head is threadedly connected to the second pressure head. Two pressure blocks are clamped and positioned between the first pressure head and the second pressure head, and a filter membrane is clamped between the two pressure blocks. The intake connector, the connecting sleeve, the sleeve, the first pressure head, the second pressure head, and the air inlet head are all provided with coaxial hollow structures, and all the hollow structures form the air passage.

4. A dust concentration instrument calibration apparatus as claimed in claim 3, characterised in that: The hollow structure inside the first pressure head and the second pressure head is set in a conical shape; A sealing element is provided between the sleeve and the first pressure head, between the first pressure head and one of the pressure blocks, between the other pressure block and the second pressure head, and between the second pressure head and the air inlet head; An operating handle is provided on the outer wall of the connecting sleeve.

5. A dust concentration instrument calibration apparatus as claimed in claim 4, characterised in that: The mounting base has an arc-shaped clearance at one corner, and the arc-shaped clearance is located in the rotation direction of the rotating base.

6. A dust concentration instrument calibration apparatus as claimed in any one of claims 1 to 5, characterized in that: The sliding mechanism includes a bracket disposed inside the dust box, a first slide rail on the bracket, a second slide rail slidably mounted on the first slide rail and driven by a first linear drive element, and two rotary sampling assemblies disposed on the second slide rail, one of which is fixed on the second slide rail, and the other is slidably mounted on the second slide rail via the mounting base and driven by a second linear drive element.

7. A dust concentration instrument calibration apparatus as claimed in claim 1, characterized in that: The cleaning and dust removal mechanism includes an air pipe connector on the dust removal box, a spray gun connected to the air pipe connector, and the spray gun arranged in the operating chamber of the dust removal box; an operating hole is provided on the dust removal box door panel corresponding to the operating chamber; and an end cap is threaded onto the air inlet head. The cleaning and dust removal mechanism also includes at least one filter cartridge connected to the fan. The filter cartridge is arranged in the dust removal chamber of the dust removal box. The dust removal box between the dust removal chamber and the operating chamber is provided with a dust removal perforation plate. The dust removal box corresponding to the operating chamber is also provided with an air inlet perforation plate.

8. A dust concentration instrument calibration apparatus as claimed in claim 1, characterized in that: The beta-ray dust concentration measuring instrument is surrounded by a housing, and the housing is equipped with a slide driven by a third linear drive element. The sampling tube extends to the outside of the housing, and the light scattering concentration detector is disposed on the housing. The dust blower box is equipped with a support frame, and the support frame is equipped with a guide rail that slides with the slide block.

9. A dust concentration instrument calibration apparatus as claimed in claim 8, characterised in that: The top of the housing is equipped with a clamp, and the light scattering concentration detector is clamped and positioned on the clamp; The box is equipped with an air pipe connector, which is connected to positive pressure gas.

10. A dust concentration instrument calibration apparatus as claimed in claim 1, characterized in that: A partition is installed between the dust blower and the dust collector, and between the dust blower and the control box. The partition is driven by a fourth linear drive element.

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