CN214097086U

CN214097086U - Suspended particle counter with protection function

Info

Publication number: CN214097086U
Application number: CN202023002868.5U
Authority: CN
Inventors: 鹿勇
Original assignee: Lunan Pharmaceutical Group Corp
Current assignee: Lunan Pharmaceutical Group Corp
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-31
Anticipated expiration: 2030-12-14

Abstract

The utility model belongs to the technical field of suspended particle number measures, especially, relate to a suspended particle counter with protect function, the load simulator comprises a counter, the air inlet at counter top is connected with the collection pipe, the tail end of collection pipe is pegged graft and is had the gathering head, the air inlet of gathering head is connected with the gas outlet of particle diluter. The counter through increasing the particle diluter, can set up when air conditioner mode verifies the self-purification time at suspension particle counter, provide effective protection to the counter to prevent the unusual emergence of the unusual phenomenon of counter count that leads to of optical sensing.

Description

Suspended particle counter with protection function

Technical Field

The utility model belongs to the technical field of suspended particle number measures, especially, relate to a suspended particle counter with protect function.

Background

The suspended particle counter is an instrument for measuring the number and particle size distribution of suspended particles per unit volume in a clean environment. The working principle is as follows: the light from the light source is focused in the measuring cavity by the lens group, when each particle in the air passes through the measuring cavity rapidly, the incident light is scattered once to form an optical pulse signal, the optical signal is sent to the optical detector by the lens group, and is converted into an electric pulse signal in proportion, and the electric pulse signal is amplified and screened by an electronic circuit of an instrument, so that the required signal is picked out and displayed by a counting system. Generally, a collecting head is adopted to collect dust, and the dust enters a counter through a collecting pipe to be detected.

When the suspended particle counter is used, an air conditioning mode is generally set first to verify the self-cleaning time. However, in practical operations, it is found that after the self-cleaning time is confirmed, the optical sensing abnormality of the suspended particle counter in the prior art occurs, which causes damage to the laser tube or the sensor therein, and finally causes inaccurate counting or even no use of the counter.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists among the above-mentioned prior art, the utility model aims to provide a suspended particle counter with protect function, this counter can set up when air conditioner mode verifies the self-purification time, provides effective protection to the counter through increasing the particle diluter to prevent the unusual emergence of the unusual phenomenon of counter count that leads to of optical sensing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the suspended particle counter with the protection function comprises a counter, wherein an air inlet at the top of the counter is connected with a collection pipe, a collection head is inserted into the tail end of the collection pipe, and the air inlet of the collection head is connected with an air outlet of a particle diluter.

The basic working principle of the particle diluter is as follows: a part of aerosol particles are collected through a fine capillary tube, the flow ratio of the capillary tube is kept constant, the rest part of aerosol is filtered by a HEPA filter through a bypass, and then the two air flows of the capillary tube and the bypass are uniformly mixed, so that the particle concentration in the capillary tube is diluted. Maintaining a certain capillary to bypass ratio results in a fixed particle dilution ratio. The utility model discloses an increase the particle diluter, can set up when air conditioner mode verifies the self-purification time at suspension particle counter, provide effective protection to the counter to prevent the unusual emergence of the unusual phenomenon of counter count that leads to of optical sensing.

When the counter is not used, the air inlet at the top of the counter can be directly exposed to air, so that dust enters and the use of the counter is influenced. To solve this problem, it is preferable that a dust cover is provided on the top of the counter, and one side of the dust cover is hinged to the counter. When the counter is not used, the dust cover on the top is covered, so that the air inlet can be prevented from being directly exposed in the air, and dust is prevented from entering the air inlet. Moreover, the collecting pipe and the collecting head can be contained in the containing space between the dustproof cover and the top of the counter, so that the collecting pipe and the collecting head are prevented from being polluted.

Preferably, the dustproof cover and the counter are provided with mutually matched hasps which can play a role in fixing, and the dustproof cover can be firmly fixed on the counter through the hasps.

Preferably, the dustproof cover is provided with a handle which can be opened and closed conveniently.

The counter generally adopts the pick head to gather dust when using, gets into the inside detection of counter through the collection pipe, because the collection pipe is longer and put at will, twines easily and leads to the dust to block up together, is unfavorable for getting into in the counter, influences normal detection. In order to solve the problem, preferably, the upper part and the lower part of the side surface of the counter are respectively provided with an L-shaped collecting tube fixing clamp and an inverted L-shaped collecting tube fixing clamp, and the L-shaped collecting tube fixing clamp and the inverted L-shaped collecting tube fixing clamp are arranged in a vertically symmetrical mode. The collecting pipe can be fixed between the L-shaped collecting pipe fixing clamp and the inverted L-shaped collecting pipe fixing clamp, and winding between the collecting pipes is prevented.

Preferably, the collecting tube fixing clip is made of elastic rubber.

Advantageous effects

The utility model discloses a suspended particle counter with protect function, this counter can set up when air conditioner mode verifies the self-purification time at suspended particle counter through increasing the particle diluter, provide effective protection to the counter to prevent the unusual emergence of the unusual phenomenon of counter count that leads to of optical sensing.

Drawings

FIG. 1 is a schematic structural diagram of a suspended particle counter with a protection function according to embodiment 1 of the present patent;

FIG. 2 is a schematic structural diagram of a particle counter described in example 2 of this patent;

in the figure, 1: a counter; 2: an air inlet; 3: a collection tube; 4: a pick head; 5: a particle diluter; 6: a dust cover; 7: a hasp; 8: a handle; 9: an L-shaped collecting tube fixing clamp; 10: an inverted L-shaped collecting tube fixing clamp; 11: and (4) a hinge.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not intended to limit the invention, and those skilled in the art will appreciate that modifications within the scope of the invention do not depart from the spirit and scope of the invention.

Example 1

As shown in fig. 1, the suspended particle counter with the protection function comprises a counter 1, wherein an air inlet 2 at the top of the counter is connected with a collection tube 3, a collection head 4 is inserted into the tail end of the collection tube, and an air inlet of the collection head is connected with an air outlet of a particle diluter 5.

Example 2

As shown in fig. 2, the suspended particle counter with the protection function comprises a counter 1, wherein an air inlet 2 at the top of the counter is connected with a collection tube 3, a collection head 4 is inserted into the tail end of the collection tube, and an air inlet of the collection head is connected with an air outlet of a particle diluter 5.

When the counter is not used, the air inlet at the top of the counter can be directly exposed to air, so that dust enters and the use of the counter is influenced. To solve this problem, the top of the counter is provided with a dust cover 6, one side of which is hinged with the counter. When the counter is not used, the dust cover on the top is covered, so that the air inlet can be prevented from being directly exposed in the air, and dust is prevented from entering the air inlet. Moreover, the collecting pipe and the collecting head can be contained in the containing space between the dustproof cover and the top of the counter, so that the collecting pipe and the collecting head are prevented from being polluted.

The dustproof cover with be provided with hasp 7 of mutually supporting on the counter, can play the fixed action, the hasp can be with the dustproof cover firmly fixed on the counter.

The dustproof cover is provided with a handle 8 which can be opened and closed conveniently.

The counter generally adopts the pick head to gather dust when using, gets into the inside detection of counter through the collection pipe, because the collection pipe is longer and put at will, twines easily and leads to the dust to block up together, is unfavorable for getting into in the counter, influences normal detection. In order to solve the problem, the upper part and the lower part of the side surface of the counter are respectively provided with an L-shaped collecting pipe fixing clamp 9 and an inverted L-shaped collecting pipe fixing clamp 10, and the L-shaped collecting pipe fixing clamp and the inverted L-shaped collecting pipe fixing clamp are arranged symmetrically up and down. The collecting pipe can be fixed between the L-shaped collecting pipe fixing clamp and the inverted L-shaped collecting pipe fixing clamp, and winding between the collecting pipes is prevented.

The collecting pipe fixing clamp is made of elastic rubber.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. The utility model provides a suspended particle counter with protect function, includes the counter, the air inlet at counter top is connected with the collection pipe, the tail end of collection pipe is pegged graft and is had the collection head, its characterized in that: and the air inlet of the collecting head is connected with the air outlet of the particle diluter.

2. The suspended particle counter with protection function of claim 1, characterized in that: and a dustproof cover is arranged at the top of the counter.

3. The suspended particle counter with protection function according to claim 2, characterized in that: the dustproof cover is rotatably connected to the top of the counter.

4. The suspended particle counter with protection function of claim 3, characterized in that: one side of the dustproof cover is hinged with the counter.

5. The suspended particle counter with protection function of claim 4, characterized in that: the dustproof cover and the counter are provided with mutually matched hasps.

6. The suspended particle counter with protection function of claim 5, characterized in that: and a handle is arranged on the dustproof cover.

7. The suspended particle counter with protection function of claim 1, characterized in that: and a collecting tube fixing clamp is arranged on the side surface of the counter.

8. The suspended particle counter with protection function of claim 7, characterized in that: and the upper part and the lower part of the side surface of the counter are respectively provided with an L-shaped collecting tube fixing clamp and an inverted L-shaped collecting tube fixing clamp.

9. The suspended particle counter with protection function of claim 8, characterized in that: the L-shaped collecting pipe fixing clamp and the inverted L-shaped collecting pipe fixing clamp are arranged symmetrically from top to bottom.

10. The suspended particle counter with protection function of claim 7, characterized in that: the collecting pipe fixing clamp is made of elastic rubber.