CN219328643U

CN219328643U - Sampling probe capable of being miniaturized in volume

Info

Publication number: CN219328643U
Application number: CN202223569756.7U
Authority: CN
Inventors: 吕品珍
Original assignee: Zhenjiang Fuhui Technology Co ltd
Current assignee: Zhenjiang Fuhui Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-11
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a sampling probe with a miniaturized volume, which comprises a probe cylinder body and a filter element assembly, wherein the probe cylinder body and the filter element assembly are distributed at intervals, the filter element assembly comprises a filter element, a plurality of heating rods are inserted into one end face of the probe cylinder body, the heating rods extend between the probe cylinder body and the filter element, and the other end of the probe cylinder body is provided with a gas pipe which is communicated with the filter element so as to enable gas to be tested to directly enter an inner cavity of the filter element. The filter element and the heating rod are both positioned in the probe cylinder body, the length directions of the filter element and the heating rod are the same, the filter element and the heating rod are not mutually blocked in the use environment, meanwhile, the filter element is not interfered by the heating rod in the process of installing or dismantling the filter element, in addition, the gas transmission pipe is mutually communicated with the filter element, and external gas to be detected can directly enter the filter element through the gas transmission pipe, so that a large amount of dust is not adhered to the heating rod even if the heating rod and the filter element are positioned in the same space.

Description

Sampling probe capable of being miniaturized in volume

Technical Field

The present utility model relates to a sampling probe which can be miniaturized in volume.

Background

Along with the development of industrial automation technology, special sampling equipment is needed for gas sampling under complicated environment and severe conditions, such as a power plant kiln tail electric dust collection position, the sampling temperature is higher, the water content of the sample gas is larger, and the sample gas is prevented from being condensed and blocked by rapid cooling after coming out, so that a heating type high-temperature sampling probe and a heat tracing sampling pipeline are needed to be equipped at the measuring point for sampling, and the sample gas is prevented from being exposed to cold.

For the existing heating mode of the heating type high-temperature sampling probe, the probe cylinder is usually heated firstly, then the space where the filter element is located is heated through heat conduction, the heating mode is adopted to avoid the influence of dust in gas to be tested on the heating element in the using process, but the heating mode can lead to the large volume of the probe cylinder (because two spaces are needed, one space where the filter element is located and one space where the heating element is located).

Disclosure of Invention

The main object of the utility model is to provide a sampling probe which can be miniaturized in volume, the filter element and the heating element are located in the same space, and the installation position of the further heating element does not prevent the installation and the disassembly of the filter element.

The aim of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a sample probe that volume can be miniaturized, includes outer, interior interval distribution's probe barrel and filter core subassembly, the filter core subassembly is including the filter core, one end face of probe barrel alternates there is a plurality of heating rods, just the heating rod extends to between probe barrel and the filter core, the other end of probe barrel is provided with the gas-supply pipe, the gas-supply pipe is put through with the filter core to make the gas to be measured directly get into the filter core inner chamber.

Preferably, the filter element assembly further comprises a first clamping piece and a second clamping piece which are respectively arranged at two ends of the filter element, the first clamping piece and the second clamping piece are mutually connected and used for clamping the filter element, a flange plate is arranged at the other end of the probe cylinder body, an elastic piece is arranged between the flange plate and the first clamping piece, and the filter element assembly is used for being inserted into an inner cavity of the probe cylinder body and pressing the elastic piece.

Preferably, a limiting column is arranged on one end face of the probe cylinder, a fixing rod is arranged at one end of the second clamping piece, a notch is formed in the side face of the fixing rod in a penetrating mode, and the limiting column is used for being embedded into the notch to cooperate with the elastic piece to limit axial deflection of the filter element assembly located in the probe cylinder.

Preferably, the limiting post comprises a large-diameter portion and a small-diameter portion which are adjacently distributed, the notch is used for accommodating the small-diameter portion of the limiting post, and the large-diameter portion of the limiting post is used for limiting the fixing rod connected with the limiting post to move towards the large-diameter portion of the limiting post.

Preferably, the outer wall of the probe cylinder body is respectively penetrated with a back-blowing opening and an air outlet.

Preferably, the probe cylinder, the filter element and the heating rod are identical in length direction.

Preferably, the length direction of the limiting post is the same as the length direction of the probe cylinder, and the fixing rod and the limiting post are mutually perpendicular.

The beneficial technical effects of the utility model are as follows:

1. the filter element and the heating rod are both positioned in the probe cylinder body, the length directions of the filter element and the heating rod are the same, the filter element and the heating rod are not mutually blocked in the use environment, meanwhile, the filter element is not interfered by the heating rod in the process of installing or dismantling the filter element, in addition, the gas transmission pipe is mutually communicated with the filter element, and external gas to be detected can directly enter the filter element through the gas transmission pipe, so that a large amount of dust is not adhered to the heating rod even if the heating rod and the filter element are positioned in the same space.

2. The filter element assembly is stably arranged in the probe cylinder body by matching the elastic piece, the filter element assembly is only pressed and rotated by one hand during the installation, and only the filter element assembly is rotated by one hand during the disassembly, so that the filter element assembly does not need to be operated by two hands during the disassembly and the assembly process, and the complex installation/disassembly environment can be adapted.

Drawings

FIG. 1 is a schematic perspective view of a sampling probe according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a cartridge assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a cartridge assembly according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a probe housing according to an embodiment of the utility model.

In the figure: the device comprises a 1-probe cylinder, a 2-filter element, a 3-heating rod, a 4-first clamping piece, a 5-second clamping piece, a 6-limit column, a 7-fixing rod, an 8-handle, a 9-flange, a 10-elastic piece, an 11-gas pipe, a 12-probe shell, a 13-gas outlet, a 14-back blowing port, a 15-connecting rod and a 16-connecting cylinder.

Detailed Description

In order to make the technical solution of the present utility model more clear and obvious to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

As shown in fig. 1 to 4, the sampling probe with a miniaturized volume provided by the embodiment comprises a probe cylinder body 1 and a filter element assembly, wherein the probe cylinder body 1 and the filter element assembly are distributed at intervals, the probe cylinder body 1 is of a hollow cylindrical structure, the filter element assembly comprises a filter element 2, a first clamping piece 4 and a second clamping piece 5, the filter element 2 is arranged between the first clamping piece and the second clamping piece, the filter element 2 is of a hollow cylindrical structure, and a space is reserved between the filter element 2 and the probe cylinder body 1 along the radial direction;

the right side of the first clamping piece 4 is provided with a connecting cylinder 16, the left side of the second clamping piece 5 is provided with a connecting rod 15, the connecting rod 15 and the connecting cylinder 16 are both positioned in the inner cavity of the filter element 2, the left end of the connecting rod 15 is provided with external threads, the inner wall of the right end of the connecting cylinder 16 is provided with internal threads, and the connecting rod 15 and the connecting cylinder 16 are connected through screw threads in a screwing way, so that the first clamping piece 4 and the second clamping piece 5 clamp and fix the filter element 2, and therefore, when the filter element 2 is installed, only the second clamping piece 5 is required to be fixed on the probe cylinder 1;

the side surface of the first clamping piece 4 is penetrated with a first through hole which is communicated with the gas pipe 11 and the connecting cylinder 16 respectively, the outer side wall of the connecting cylinder 16 is penetrated with a plurality of second through holes, the second through holes are all positioned in the inner cavity of the filter element 2, a space is reserved between the outer wall of the connecting cylinder 16 and the inner wall of the filter element 2, so that gas to be detected can conveniently enter the filter element 2 from the second through holes, and the gas pipe 1, the first through holes and the second through holes form a channel for enabling external gas (gas to be detected and standard gas) to enter the filter element 2, and the channel can enable the external gas to be directly injected into the filter element 2 instead of passing through the inner wall of the probe cylinder 1 for the first time;

the outer side of the probe cylinder 1 is provided with a probe shell 12, the outer walls of the probe cylinder 1 and the probe shell 12 are penetrated with a back blowing port 14 and an air outlet 13, high-pressure air can be injected into the probe cylinder 1 through the back blowing port 14 after the filter element 2 is used for a long time, so that dust on the inner wall of the filter element 2 falls off and is blown away through an air pipe 11, the service life of the filter element 2 can be prolonged, the filtering efficiency can be improved, a heat tracing sampling pipe can be arranged at the air outlet 13, and filtered gas to be detected enters the sampling pipe;

the probe cylinder 1 is provided with a plurality of heating rods 3 in an penetrating way at one end face, the heating rods 3 extend between the probe cylinder 1 and the filter element 2, namely, the heating rods 3 are used for directly heating the space where the filter element 2 is located, the space where the filter element 2 is located is not heated after the probe cylinder 1 is heated, the heat efficiency is high, the probe cylinder 1 does not need to be designed into a double-layer structure in such a heating way, the volume of the probe cylinder 1 can be reduced, the other end of the probe cylinder 1 is provided with a gas pipe 11, and the gas pipe 11 is communicated with the filter element 2, so that gas to be measured directly enters the filter element 2.

In this embodiment, as shown in fig. 1, a flange 9 is disposed at the other end of the probe cylinder 1, an elastic member 10 is disposed between the flange 9 and the first clamping member 4, the elastic member 10 may be a spring, and the filter element assembly is inserted into the inner cavity of the probe cylinder 1 and presses the elastic member 10 when in use.

In this embodiment, as shown in fig. 1, a limit post 6 is disposed on the right end face of the probe cylinder 1, a fixing rod 7 is disposed at one end of the second clamping member 5, the length direction of the limit post 6 is the same as the length direction of the probe cylinder 1, the fixing rod 7 is perpendicular to the plane where the limit post 6 is located, a gap penetrates through the side face of the fixing rod 7, the limit post 6 includes a large diameter portion and a small diameter portion which are distributed adjacently, the large diameter portion and the small diameter portion refer to the result after the two portions are compared, the gap is used for accommodating the small diameter portion of the limit post 6, the large diameter portion of the limit post 6 is used for limiting the fixing rod 7 connected with the limit post 6 to move towards the large diameter portion of the limit post 6, and the large diameter portion of the limit post is matched with a spring to use so as to play a role in limiting the filter element assembly.

In this embodiment, the right side of second clamping piece 5 is provided with handle 8, dead lever 7 sets up on handle 8, when installing filter core 2, the one hand alternates the filter core subassembly in probe barrel 1 inner chamber until supporting elastic component 10, then rotatory dead lever 7 through handle 8, make spacing post 6 imbeds in the breach, the filter core subassembly can be stable in probe barrel 1 under the cooperation use between spacing post 6 and elastic component 11 this moment, if need change the filter core, only need one hand rotatory handle 8, make dead lever 7 and spacing post 6 break away from, at this moment under the effect of elastic component 10, the filter core subassembly can outwards rebound a certain distance, take out and change the filter core subassembly at this moment can.

In this embodiment, as shown in fig. 1, the probe cylinder 1, the filter element 2, and the heating rod 3 are identical in length direction, so that the respective placement of the filter element 2 and the heating rod 3 is ensured not to adversely affect each other.

To sum up, in this embodiment, the elastic member 10 is provided between the filter element assembly and the flange 9, and the gaps on the limiting post 6 and the fixing rod 7 are mutually combined to limit the axial displacement of the filter element assembly in the probe cylinder 1 along a direction, so that the filter element assembly can be stably installed in the probe cylinder 1 by being matched with the elastic member 10, and only one hand is needed to press and rotate the filter element assembly during installation, and only one hand is needed to rotate the filter element assembly during disassembly, so that the complex installation/disassembly environment can be adapted without two hands during the disassembly.

The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims

1. A sampling probe of miniaturized volume, characterized in that: including outer, interior interval distribution's probe barrel (1) and filter element assembly, filter element assembly is including filter core (2), one end face of probe barrel (1) alternates there is a plurality of heating rods (3), just heating rods (3) extend to between probe barrel (1) and filter core (2), the other end of probe barrel (1) is provided with gas-supply pipe (11), gas-supply pipe (11) are put through with filter core (2) to make the gas to be measured directly get into filter core (2) inner chamber.

2. The miniaturized volume capable sampling probe of claim 1, wherein: the filter element assembly further comprises a first clamping piece (4) and a second clamping piece (5) which are respectively arranged at two ends of the filter element (2), the first clamping piece (4) and the second clamping piece (5) are mutually connected and used for clamping the filter element (2), a flange plate (9) is arranged at the other end of the probe cylinder body (1), an elastic piece (10) is arranged between the flange plate (9) and the first clamping piece (4), and the filter element assembly is used for being inserted into an inner cavity of the probe cylinder body (1) and pressing the elastic piece (10).

3. The miniaturized volume capable sampling probe of claim 2, wherein: a limiting column (6) is arranged on one end face of the probe cylinder body (1), a fixing rod (7) is arranged at one end of the second clamping piece (5), a notch penetrates through the side face of the fixing rod (7), and the limiting column (6) is used for being embedded into the notch to cooperate with an elastic piece (10) to limit axial deflection of a filter element assembly located in the probe cylinder body (1).

4. A miniaturized volume capable sampling probe as in claim 3, wherein: the limiting column (6) comprises a large-diameter part and a small-diameter part which are adjacently distributed, the notch is used for accommodating the small-diameter part of the limiting column (6), and the large-diameter part of the limiting column (6) is used for limiting the fixed rod (7) connected with the limiting column (6) to move towards the large-diameter part of the limiting column (6).

5. The miniaturized volume capable sampling probe of claim 1, wherein: the outer wall of the probe cylinder body (1) is respectively penetrated with a back-blowing opening and an air outlet.

6. The miniaturized volume capable sampling probe of claim 2, wherein: the length directions of the probe cylinder body (1), the filter element (2) and the heating rod (3) are the same.

7. A miniaturized volume capable sampling probe as in claim 3, wherein: the length direction of the limiting column (6) is the same as the length direction of the probe cylinder (1), and the fixing rod (7) and the limiting column (6) are mutually perpendicular.