CN219161736U

CN219161736U - Sampling probe capable of replacing filter element only

Info

Publication number: CN219161736U
Application number: CN202223583923.3U
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: 2023-06-09
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a sampling probe capable of replacing a filter element only, which comprises a probe cylinder body, wherein the inner cavity of the probe cylinder body is provided with the filter element, one end of the probe cylinder body is provided with an air inlet, a channel for enabling air from the air inlet to enter the inner cavity of the filter element is arranged between the air inlet and the filter element, one end of the filter element is provided with a clamping gasket, the other end of the filter element is provided with a fixing seat, and the fixing seat and the clamping gasket are mutually connected and used for clamping the filter element. The air inlet, the air pipe, the first through hole and the second through hole can form a channel for enabling external air to directly enter the inner cavity of the filter element, so that dust-bearing air is prevented from directly contacting the inner wall of the probe cylinder, extra cleaning work is avoided after a large amount of dust is adhered to the inner wall of the probe cylinder, in addition, the filter element is clamped and fixed by the fixing seat and the clamping gasket, the filter element is not required to be installed in the probe cylinder in a spiral mode, and the clamping gasket can be removed after the fixing seat and the clamping gasket which are in a connected state are taken out, so that the filter element can be replaced.

Description

Sampling probe capable of replacing filter element only

Technical Field

The utility model relates to a sampling probe with a replaceable filter element.

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.

Because there is the dust in the gas to be tested, can install the filter core in order to filter most dust usually in sampling probe, at present in order to be convenient for install the filter core, generally with its mode of screwing in be fixed in the probe barrel, such gas transmission mode is from a section of thick bamboo outside to a section of thick bamboo inner wall then through the filter core, so although can filter the dust, the dust can accumulate on filter core outer wall and barrel inner wall, not only need change the filter core still change the barrel or clear up the barrel inner wall after long-term use, so can not increase the use and the fortune dimension cost of probe.

Disclosure of Invention

The utility model mainly aims to provide a sampling probe with a replaceable filter element, so that gas to be tested is directly filtered through the filter element when being transmitted into the probe, dust is prevented from adhering to the gas to be tested with dust firstly through the inner wall of a cylinder, and the filter element is further convenient to detach.

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

the utility model provides a sampling probe of removable filter core only, includes the probe barrel, the inner chamber of probe barrel is provided with the filter core, the one end of probe barrel is provided with the air inlet, just be provided with a passageway that is used for making the gas that comes from the air inlet get into the filter core inner chamber between air inlet and the filter core, the one end of filter core is provided with the centre gripping gasket, the other end of filter core is provided with the fixing base, fixing base and centre gripping gasket interconnect are used for the centre gripping filter core, just fixing base detachable sets up in the other end of probe barrel.

Preferably, the outer peripheral side wall of the probe cylinder body penetrates through the back-blowing port and the air outlet respectively.

Preferably, a connecting rod is arranged on one side of the fixing seat, a connecting cylinder is arranged on one side of the clamping gasket, and the connecting rod and the connecting cylinder are connected through screw threads in a screwing mode, so that the fixing seat and the clamping gasket clamp and fix the filter element.

Preferably, the clamping gasket is provided with a first through hole in a penetrating mode along the axial direction, the first through hole is communicated with the connecting cylinder, a gas transmission pipe is arranged between the first through hole and the gas inlet, the outer side wall of the connecting cylinder is provided with a plurality of second through holes in a penetrating mode, and the gas inlet, the gas transmission pipe, the first through hole and the second through hole form a channel for enabling external gas to enter the inner cavity of the filter element.

Preferably, one side of the fixing base is provided with a caulking groove for accommodating one end part of the filter element.

Preferably, both end surfaces of the filter element are provided with high-temperature-resistant and corrosion-resistant sealing rings.

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

1. the air inlet, the air conveying pipe, the first through hole and the second through hole can form a channel for enabling external air to directly enter the inner cavity of the filter element, so that dust-bearing air is prevented from directly contacting the inner wall of the probe cylinder, extra cleaning work is avoided after a large amount of dust is adhered to the inner wall of the probe cylinder, in addition, the filter element is clamped and fixed by the fixing seat and the clamping gasket, the filter element is not required to be installed in the fixed high-temperature probe cylinder in a spiral mode, and the clamping gasket can be removed after the fixing seat and the clamping gasket which are in a connected state are taken out, so that the filter element can be replaced in a safe and room-temperature environment.

2. The fixing seat provided by the utility model is provided with the caulking groove for accommodating the filter element, so that the radial offset of the filter element in the installation or use process can be avoided, and the stability of the filter element in the probe cylinder body can be improved.

Drawings

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

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

FIG. 3 is a schematic perspective view of a clamping pad and a holder according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a fixing base according to an embodiment of the present utility model.

In the figure: 1-probe cylinder, 2-back-blowing port, 3-air outlet, 4-air inlet, 5-filter element, 6-fixing seat, 7-clamping gasket, 8-connecting rod, 9-connecting cylinder and 10-air pipe.

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. 1-4, the sampling probe capable of replacing only the filter element provided in this embodiment includes a probe cylinder 1, the probe cylinder 1 is of a hollow cylindrical structure, a filter element 5 is disposed in an inner cavity of the probe cylinder 1, the filter element 5 is also of a hollow cylindrical structure, a space is reserved between the filter element 5 and the probe cylinder 1 in a radial direction, a peripheral side wall of the probe cylinder 1 penetrates through a blowback port 2 and an air outlet 3 respectively, after the filter element 5 is used for a long time, high-pressure air or nitrogen can be injected into the probe cylinder 1 through the blowback port 2, dust on an inner wall of the filter element 5 is separated and blown away through the air inlet 4, service life of the filter element 5 can be prolonged, filtering efficiency can be improved, a heat tracing sampling tube can be mounted at the air outlet 3, filtered gas to be detected enters the sampling tube, an air inlet 4 is disposed at a left end of the probe cylinder 1, a substantially hollow tube is disposed between the air inlet 4 and the filter element 5, and a channel for allowing gas from the air inlet 4 to enter the filter element 5 is disposed between the air inlet 4 and the filter element 5;

the left end of the filter element 5 is provided with a clamping gasket 7, the right end of the filter element 5 is provided with a fixing seat 6, the left side of the fixing seat 6 is provided with a connecting rod 8, the left end of the connecting rod 8 is provided with external threads, the right side of the clamping gasket 7 is provided with a connecting cylinder 9, the inner wall of the right end of the connecting cylinder 9 is provided with internal threads, the connecting rod 8 and the connecting cylinder 9 are connected through screw threads in a screwing way, so that the fixing seat 6 and the clamping gasket 7 clamp and fix the filter element 5, when the filter element 5 is installed, the fixing seat 6 is only required to be fixed on the probe cylinder 1, the fixing seat 6 can be connected with the probe cylinder 1 through fixing pieces such as bolts, and partial threaded holes can be formed in the contact surface between the fixing seat 6 and the probe cylinder 1 so as to fix the fixing seat 6 and the probe cylinder 1 through bolts, and can also be connected with the probe cylinder 1 through other detachable modes;

the clamping gasket 7 penetrates through the first through hole along the axial direction, the first through hole is communicated with the connecting cylinder 9, the gas transmission pipe 10 is connected between the first through hole and the gas inlet 4, the outer side wall of the connecting cylinder 9 penetrates through a plurality of second through holes, the second through holes are all located in the inner cavity of the filter element 5, a space is reserved between the outer wall of the connecting cylinder 9 and the inner wall of the filter element 5, gas to be detected conveniently enters the filter element 5 from the second through holes, the gas inlet 4, the gas transmission pipe 10, 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 5, and the channel can enable the external gas to be directly injected into the filter element 5 instead of firstly passing through the inner wall of the probe cylinder 1.

In this embodiment, as shown in fig. 1, the left side of the fixing seat 6 has a cylindrical caulking groove for accommodating the right end portion of the filter element 5, so that stability of the filter element 5 between the fixing seat 6 and the clamping pad 7 can be increased, and radial offset of the filter element 5 during installation or use can be avoided.

In this embodiment, as shown in fig. 1, sealing rings with high temperature resistance and corrosion resistance are provided on both end surfaces of the filter element 5, so that the gas to be measured can be prevented from flowing from both ends of the filter element 5 to the inner wall of the probe cylinder 1.

To sum up, in this embodiment, the air inlet 4, the air pipe 10, the first through hole and the second through hole provided in this embodiment can form a channel that makes the external air directly enter the filter core 5, avoid the gas with dust to directly contact the inner wall of the probe cylinder 1, avoid the inner wall of the probe cylinder 1 to adhere to a large amount of dust and then need extra cleaning work, in addition, the filter core 5 is clamped and fixed by the fixing seat 6 and the clamping gasket 7, the filter core 5 is not required to be installed in the probe cylinder 1 in a spiral manner, and the filter core 5 can be replaced by removing the clamping gasket 7 after taking out the fixing seat 6 and the clamping gasket 7 in a connection state.

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 capable of replacing only a filter element, which is characterized in that: including probe barrel (1), the inner chamber of probe barrel (1) is provided with filter core (5), the one end of probe barrel (1) is provided with air inlet (4), just be provided with a passageway that is used for making the gas that comes from air inlet (4) get into filter core (5) inner chamber between air inlet (4) and filter core (5), the one end of filter core (5) is provided with centre gripping gasket (7), the other end of filter core (5) is provided with fixing base (6), fixing base (6) and centre gripping gasket (7) interconnect are used for centre gripping filter core (5), just fixing base (6) detachable sets up in the other end of probe barrel (1).

2. The cartridge-replaceable sampling probe of claim 1, wherein: the peripheral side wall of the probe cylinder body (1) respectively penetrates through the back-blowing port (2) and the air outlet (3).

3. The cartridge-replaceable sampling probe of claim 1, wherein: one side of fixing base (6) is provided with connecting rod (8), one side of centre gripping gasket (7) is provided with connecting cylinder (9), connecting rod (8) and connecting cylinder (9) are connected through the screw thread spin to make fixing base (6) and centre gripping gasket (7) carry out the centre gripping to filter core (5) fixedly.

4. A cartridge-replaceable sampling probe according to claim 3, wherein: the clamping gasket (7) is provided with a first through hole in a penetrating mode along the axial direction, the first through hole is communicated with the connecting cylinder (9), a gas pipe (10) is arranged between the first through hole and the gas inlet (4), the outer side wall of the connecting cylinder (9) is provided with a plurality of second through holes in a penetrating mode, and the gas inlet (4), the gas pipe (10), the first through hole and the second through hole form a channel for enabling external gas to enter the filter element (5).

5. The cartridge-replaceable sampling probe of claim 4, wherein: one side of the fixing seat (6) is provided with a caulking groove for accommodating one end part of the filter element (5).

6. The cartridge-replaceable sampling probe of claim 1, wherein: both end surfaces of the filter element (5) are provided with sealing rings.