CN221078188U

CN221078188U - Particulate sampling mechanism

Info

Publication number: CN221078188U
Application number: CN202322720237.4U
Authority: CN
Inventors: 许胜杰; 许宇剑; 王小甘
Original assignee: Hubei Fosi Testing Technology Co ltd
Current assignee: Hubei Fosi Testing Technology Co ltd
Priority date: 2023-10-10
Filing date: 2023-10-10
Publication date: 2024-06-04
Anticipated expiration: 2033-10-10

Abstract

The utility model provides a particulate matter sampling mechanism, which belongs to the technical field of particulate matter sampling and comprises a sampling cylinder, wherein a supporting plate is arranged in the middle of the inner wall of the sampling cylinder, a filter pipe is arranged in the middle of the supporting plate, a cover plate is arranged at the top of the filter pipe, a sealing ring is arranged at the top of the sampling cylinder, the inner wall of the top of the filter pipe is attached to the sealing ring, a control panel is arranged on the outer wall of the sampling cylinder, the input end of the control panel is electrically connected with an external power supply, a plurality of heating pipes are arranged at the bottom of the inner wall of the sampling cylinder, and the input ends of the heating pipes are electrically connected with the output end of the control panel; according to the utility model, external waste gas can be prevented from continuously entering the sampling cylinder in the sampling process, so that a worker can replace or clean the filter tube.

Description

Particulate sampling mechanism

Technical Field

The utility model relates to the technical field of particulate matter sampling, in particular to a particulate matter sampling mechanism.

Background

With the increasing development of industrial production, the problem of exhaust gas pollution is of great concern. Various particulate matters such as PM2.5 become one of main pollutants. In order to accurately detect the types and the contents of particulate matters in the exhaust gas, the collection and the treatment processes of the sample are extremely critical.

The isolation mechanism is not designed in the sampling process of the partial particulate matter sampling device on the market at present, and external air can continuously enter the sampling cylinder, so that serious interference is caused to the filtering and sampling process, and partial waste gas cannot be accurately detected in a targeted mode. In addition, the filtering component of the existing part device is simple in structure, and the filtering pipe is fixedly connected with the sampling tube and cannot be detached and replaced. After long-term use, a large amount of particles are accumulated in the filter tube, and the filtering effect is affected.

In summary, some particulate sampling devices currently on the market have the defects that the sampling process can be interfered by external air, the filtering component is not detachable and replaceable, and the like, so we propose a particulate sampling mechanism.

Disclosure of utility model

In view of the above, the utility model provides a particulate matter sampling mechanism, which can prevent external waste gas from continuously entering the inside of a sampling cylinder in the sampling process, so that a worker can replace or clean a filter pipe.

In order to solve the technical problems, the utility model provides a particulate matter sampling mechanism, which comprises a sampling cylinder, wherein the middle part of the inner wall of the sampling cylinder is provided with a supporting plate, the middle part of the supporting plate is provided with an annular clamping groove, the middle part of the clamping groove is clamped with a filter pipe, the center of the top of the filter pipe is provided with a cover plate, the cover plate is in threaded connection with the filter pipe, the top of the sampling cylinder is fixedly connected with a sealing ring, the inner wall of the top of the filter pipe is attached to the sealing ring, the top of the outer wall of the sampling cylinder is in threaded connection with the filter pipe, the outer wall of the sampling cylinder is fixedly connected with a control panel, the input end of the control panel is electrically connected with an external power supply, the bottom of the inner wall of the sampling cylinder is fixedly connected with a plurality of heating pipes, the heating pipes are arranged around the central axis of the sampling cylinder in an annular array, the input end of the heating pipes is electrically connected with the output end of the control panel, and waste gas outside in the sampling process is prevented from continuously entering the inside of the sampling cylinder, and workers can conveniently replace or clean the filter pipe.

The middle part of the filter pipe is fixedly connected with a first filter screen, the bottom of the filter pipe is fixedly connected with a second filter screen, and the first filter screen is arranged on the upper side of the second filter screen; the filter tube can be replaced according to the actual sampling requirement.

The inside of the sampling cylinder is fixedly connected with a humidity sensor which is electrically connected with the control panel in a bidirectional way; the starting and stopping of the heating pipe can be conveniently and accurately controlled.

The bottom of the sampling cylinder is provided with a notch, the bottom of the notch is fixedly connected with a discharge pipe, and a discharge hole of the discharge pipe is in threaded connection with a sealing plate; the particle collection device is convenient for workers to collect particles.

A pull rod is fixedly connected to the center of one side of the sealing plate; the sealing plate is convenient for the staff to rotate, so that the sealing plate is separated from the discharge pipe.

The top of the cover plate is provided with a handle, and the bottom of the handle is fixedly connected with the center of the top of the cover plate; the cover plate is convenient for the staff to rotate, so that the cover plate is separated from the filter pipe.

The bottom of the sampling cylinder is provided with a plurality of support columns; i.e. to provide stable support for the sampling mechanism.

In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:

1. During sampling, the staff rotates the apron and separates apron and filter tube, expose the gas inlet at filter tube top, then wait for the gas that needs to detect to get into the filter tube, air gets into the filter tube and remains in the sampling tube after filtering, wait for the staff to rotate the apron and link together apron and filter tube after gathering sufficient sample, seal the sampling tube, wait for the sampling tube airtight back, the staff heats the gas in the sampling tube through control panel control heating pipe, particulate matter and steam separation in the messenger air, the setting through the apron has avoided continuously getting into inside the sampling tube at the outside waste gas of sampling in-process, prevent to cause the accuracy that the interference influences the filtration result to the work of filtering the sampling.

2. After the sampling is finished, the top of the rotatable filter tube of staff separates the filter tube from the sampling cylinder, then the filter tube is cleaned or replaced, and during the sampling, the rotatable filter tube of staff makes the filter tube move downwards continuously, and finally the inner wall of the top of the filter tube is tightly attached to the sealing ring, so that the replacement or cleaning of the filter tube by staff is facilitated.

Drawings

FIG. 1 is a schematic view of a particulate sampling mechanism according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the top portion of the present utility model;

FIG. 3 is a schematic cross-sectional view of the interior of the present utility model;

fig. 4 is a schematic view of the top structure of the present utility model.

Reference numerals illustrate:

100. a sampling cylinder; 101. a control panel; 102. a cover plate; 103. a handle; 104. a filter tube; 105. a support column; 106. a discharge pipe; 107. a pull rod; 108. a second filter screen; 109. a first filter screen; 110. a support plate; 111. heating pipes; 112. a humidity sensor; 113. a seal ring;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-4: the embodiment provides a particulate matter sampling mechanism, which comprises a sampling tube 100, wherein the middle part of the inner wall of the sampling tube 100 is provided with a supporting plate 110, the middle part of the supporting plate 110 is provided with an annular clamping groove, the middle part of the clamping groove is clamped with a filter tube 104, the top center of the filter tube 104 is provided with a cover plate 102, the inner wall of the filter tube 104 is provided with threads, the cover plate 102 is in threaded connection with the filter tube 104, the top of the sampling tube 100 is fixedly connected with a sealing ring 113, the inner wall of the top of the filter tube 104 is attached to the sealing ring 113, the top of the outer wall of the sampling tube 100 is provided with threads, the top of the outer wall of the sampling tube 100 is in threaded connection with the filter tube 104, the outer wall of the sampling tube 100 is fixedly connected with a control panel 101, the input end of the control panel 101 is electrically connected with an external power supply, the bottom of the inner wall of the sampling tube 100 is fixedly connected with a plurality of heating tubes 111, the heating tubes 111 are annularly arranged around the central axis of the sampling tube 100, and the input end of the heating tubes 111 is electrically connected with the output end of the control panel 101;

During sampling, the staff rotates the cover plate 102 to separate the cover plate 102 from the filter tube 104, the air inlet at the top of the filter tube 104 is exposed, then the gas to be detected enters the filter tube 104, the air enters the filter tube 104 and is filtered and then is left in the sampling tube 100, the staff rotates the cover plate 102 to connect the cover plate 102 with the filter tube 104 after enough samples are collected, the sampling tube 100 is sealed, after the sampling tube 100 is sealed, the staff controls the heating tube 111 to heat the gas in the sampling tube 100 through the control panel 101, so that the particles in the air are separated from water vapor, the external waste gas is prevented from continuously entering the inside of the sampling tube 100 through the arrangement of the cover plate 102, and the influence on the accuracy of a filtering result caused by the operation of filtering and sampling is prevented.

After the sampling is finished, the top of the filtering tube 104 can be rotated by a worker to separate the filtering tube 104 from the sampling tube 100, then the filtering tube 104 is cleaned or replaced, the filtering tube 104 can be continuously moved downwards by the rotation of the worker during the sampling, and finally the inner wall of the top of the filtering tube 104 is tightly attached to the sealing ring 113, so that the condition that air leakage or impurities enter the sampling tube 100 due to poor sealing performance in the working process is prevented, and meanwhile, the filtering tube 104 is replaced or cleaned conveniently by the worker.

The first screen 109 is shown in figure 3,

The middle part of the filter tube 104 is fixedly connected with a first filter screen 109, the bottom of the filter tube 104 is fixedly connected with a second filter screen 108, and the first filter screen 109 is arranged at the top of the second filter screen 108;

when the filter pipe 104 works, the waste gas is filtered by the first filter screen 109 to obtain larger particles, and then the larger particles are filtered by the second filter screen 108 to obtain the particles required by sampling, so that a worker can replace the filter pipe 104 according to actual sampling requirements, and the filtering sampling of the particles in the waste gas at different degrees is realized.

Humidity sensor 112 as shown in figure 3,

The humidity sensor 112 is fixedly connected to the inside of the sampling cylinder 100, and the humidity sensor 112 is electrically connected with the control panel 101 in a bidirectional manner;

When the heating pipe 111 works, the humidity sensor 112 monitors the humidity inside the sampling tube 100 in real time and transmits the humidity value to the control panel 101 in real time, the control panel 101 controls the operation of the heating pipe 111 according to the humidity value inside the sampling tube 100, and when the humidity inside the sampling tube 100 reaches a specified value, the control panel 101 controls the heating pipe 111 to stop heating, so that the starting and stopping of the heating pipe 111 can be conveniently and accurately controlled.

The discharge tube 106 is shown in figure 4,

The bottom of the sampling tube 100 is provided with a notch, the bottom of the notch is fixedly connected with a discharge pipe 106, the inner wall of the discharge pipe 106 is provided with threads, and a discharge hole of the discharge pipe 106 is in threaded connection with a sealing plate;

after the heating is finished, the staff can rotate the shrouding, and the shrouding rotates and separates with discharging pipe 106, gathers the particulate matter roll-off of accomplishing from the discharge gate, makes things convenient for the staff to gather the particulate matter.

The pull rod 107 is as shown in figure 2,

A pull rod 107 is fixedly connected to the center of one side of the sealing plate;

When the particle is required to be collected, the pull rod 107 can be rotated by a worker, the pull rod 107 further drives the sealing plate to rotate, the sealing plate is convenient to rotate by the worker, and the sealing plate is separated from the discharge pipe 106.

The handle 103 is as shown in figure 1,

The top of the cover plate 102 is provided with a handle 103, and the bottom of the handle 103 is fixedly connected with the top center of the cover plate 102;

When the cover plate 102 needs to be opened, a worker can rotate the handle 103, and the handle 103 further drives the cover plate 102 to rotate, so that the worker can conveniently rotate the cover plate 102, and the cover plate 102 is separated from the filter pipe 104.

The support column 105 is as shown in figure 1,

The bottom of the sampling tube 100 is provided with a plurality of support columns 105, and the support columns 105 are annularly arranged around the central axis of the sampling tube 100;

can provide stable support for the sampling mechanism.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. A particulate matter sampling mechanism which characterized in that: including sampling tube (100), the inner wall middle part of sampling tube (100) is provided with backup pad (110), the middle part of backup pad (110) is provided with filter tube (104), the top of filter tube (104) is provided with apron (102), the top of sampling tube (100) is provided with sealing washer (113), the top inner wall and the laminating of sealing washer (113) of filter tube (104), the outer wall of sampling tube (100) is provided with control panel (101), the external power source is connected to the input electricity of control panel (101), the inner wall bottom of sampling tube (100) is provided with a plurality of heating pipes (111), the output of control panel (101) is connected to the input electricity of heating pipe (111).

2. A particulate sampling mechanism according to claim 1, wherein: the middle part of filter tube (104) is provided with first filter screen (109), the bottom of filter tube (104) is provided with second filter screen (108).

3. A particulate sampling mechanism according to claim 1, wherein: the inside of sampling tube (100) is provided with humidity transducer (112), humidity transducer (112) is connected with control panel (101) two-way electricity.

4. A particulate sampling mechanism according to claim 1, wherein: the bottom of the sampling tube (100) is provided with a discharge pipe (106), and a discharge hole of the discharge pipe (106) is provided with a sealing plate.

5. A particulate sampling mechanism according to claim 4, wherein: one side of the sealing plate is provided with a pull rod (107).

6. A particulate sampling mechanism according to claim 1, wherein: the top of apron (102) is provided with handle (103).

7. A particulate sampling mechanism according to claim 1, wherein: the bottom of the sampling tube (100) is provided with a plurality of support columns (105).