CN213121281U

CN213121281U - Sampling cutter

Info

Publication number: CN213121281U
Application number: CN201920338819.7U
Authority: CN
Inventors: 刘涛; 高伟; 董安平; 彭建; 李维; 明洪武; 刘欣
Original assignee: Chengdu Zhi Sheng Xin Ye Environmental Protection Technology Co ltd
Current assignee: Chengdu Zhi Sheng Xin Ye Environmental Protection Technology Co ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2021-05-04
Anticipated expiration: 2029-03-11

Abstract

The utility model belongs to the technical field of the particulate matter cutterbar, especially, oil smoke sampling cutterbar, at cutterbar during operation, the gas of taking passes through in the entry joint gets into the separator, the hydrophobic oil absorption adsorbent in the separator adsorbs the large granule oil that produces by mechanical explosion in to the appearance gas (peak value particle diameter 100 μm), reduce the large granule oil content in the gaseous sample, leave the separator through pagoda pipe joint at last, drip through the large granule in the separation gas that awaits measuring, the accuracy of reinforcing detection, the rapid contamination to the sensor has been avoided the large granule oil to drip, the large granule oil drips the infiltration adsorbent in the while and can not pile up at the striking face, thereby extension cutterbar life. The adsorption body is connected with the cutter main body in a clamping mode through the inlet plug and the outlet plug, and when the cutter is maintained, the cutter can be detached and replaced without tools.

Description

Sampling cutter

Technical Field

The utility model belongs to the technical field of the particulate matter cutterbar, concretely relates to oil smoke particulate matter sampling cutterbar.

Background

In recent years, people pay more and more attention to air quality, particularly PM_2.5And PM₁₀The concentration of the two types of particles in the living environment of people needs to be measured for ensuring the excellence of air quality and avoiding discomfort or lesion of the body because the two types of particles can directly enter the respiratory tract and even the lung of a human body to cause diseases such as asthma, bronchitis, cardiovascular diseases and the like.

In order to classify collected particles according to aerodynamic particle size, particle cutters are required to classify and collect the particles according to different particle size distributions, and no matter which type of cutters are adopted, the gas flow rate is required to be accurately set according to the requirements of particle size cutting points and the constant sampling rate is kept. Therefore, when gas particles in a pipeline need to be sampled in real time and related particle size analysis is carried out, two different sampling modes of constant-speed sampling and constant-speed sampling need to be coupled, most commonly, a free settling chamber (a settling chamber is provided with a special dilution gas distribution device at most), the coupling equipment is large in size, a control mechanism is complex, and a complex and heavy zero gas generation device is often arranged, so that the real-time particle size analysis system is difficult to realize a portable structure and mainly takes a laboratory or a special field layout fixed test system form as a main mode. In recent years, along with the improvement of the requirement of China on environmental protection, the limit on the oil smoke emission of catering industry is stricter, the research and development and the application of oil smoke online monitoring equipment are industrialized gradually, but the sampling of the main atmospheric pollutants of the oil smoke, namely the oil smoke fine particles, still continues to use the traditional constant-speed sampling method equipment, the equipment is very heavy and large, the manufacturing cost is not high, and the equipment cannot be directly applied to the oil smoke online monitoring equipment, so that the requirements on a small, flexible and low-cost oil smoke sampling device capable of accurately reflecting the pollution level of the oil smoke particles are generated.

The sampling device also provides requirements for miniaturization of the sampling cutter in the sampling device, the sampling cutter is mounted in portable equipment to complete cutting operation, non-test particles are effectively cut and separated, large-particle oil drops in gas to be tested are separated, and the inaccuracy of a test value is avoided.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a following technical scheme:

a sampling cutter comprises a cutter body, wherein a separation chamber is arranged in the cutter body, a first buckle seat is fixedly connected to one side of the separation chamber, a second buckle seat is fixedly connected to the other side of the separation chamber, an inlet plug is arranged on one side of the cutter body, an inlet connector is arranged on one side, away from the cutter body, of one side of the inlet plug, the inlet connector penetrates through the inlet plug, a first bulge is arranged on one side, away from the inlet connector, of one side of the inlet plug, an outlet plug is arranged on one side, away from the inlet plug, of one side of the cutter body, a pagoda pipe connector is arranged on one side, away from the cutter body, of one side of the outlet plug, the pagoda pipe connector penetrates through the outlet plug, and a second bulge is arranged on one side, away from the pagoda pipe connector, of one, and a hydrophobic oil absorption adsorbent is arranged in the separation chamber.

Preferably, the inlet plug and the separation chamber are connected through the first protrusion and the first buckle seat in a clamping manner.

Preferably, the outlet plug and the separation chamber are connected through the second protrusion and the second buckle seat in a clamping manner.

Preferably, the inner side wall of the first buckle seat is fixedly connected with a first sealing gasket which is positioned at the joint of the first protrusion and the first buckle seat.

Preferably, the inner side wall of the second buckle seat is fixedly connected with a second sealing gasket which is positioned at the joint of the second protrusion and the second buckle seat.

Preferably, the cutter body has a length of 100mm and a width of 30 mm.

Preferably, the sampling gun comprises a sampling tube main body, and the sampling tube main body comprises a nozzle, a tube body and a tube base; a pipe nozzle is arranged on one side of the pipe body, and a pipe base is fixedly connected to one side of the pipe body, which is far away from the pipe nozzle; the sampling tube main body is fixedly connected with the connecting base through a tube base.

Preferably, the particulate cutting point of the sampling cutter body 1 is between 0.1 μm and 80 μm. More preferably, the particulate cutting point of the sampling cutter body is between 0.5 μm and 10 μm.

Compared with the prior art, the beneficial effects of the utility model are that:

the cutter has simple structure and miniaturized volume, and can be applied to a portable or online sampling device; when the cutter works, the sample gas enters the separation chamber through the inlet joint, the sectional area in the separation chamber is increased, the flow speed of the sample gas is reduced, large-particle oil drops in the sample gas impact the surface of the hydrophobic clear oil adsorbent under the action of inertia and are adsorbed, and small particles continue to move along with the gas flow and finally leave the separation chamber through the pagoda pipe joint without being adsorbed, so that the cutting function is completed. Through the particulate matter cutting, can strengthen the accuracy that detects, and carry out the block through entry end cap and export end cap and cutterbar main part and be connected, when maintaining the cutterbar, can accomplish the dismantlement and change to the cutterbar under the condition of not using tools.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is a connection mode diagram of the first protrusion and the first buckle seat in the present invention;

FIG. 4 is a diagram of a connection mode of the second protrusion and the second buckle seat of the present invention;

FIG. 5 is a schematic structural view of the sampling gun of the present invention;

in the figure: 1. a cutter body; 2. an inlet fitting; 3. an inlet plug; 4. a pagoda pipe joint; 5. an outlet plug; 6. a first protrusion; 7. a separation chamber; 8. a first buckle seat; 9. a second protrusion; 10. a second buckle seat; 11. a hydrophobic oil-absorbing adsorbent; 12. a first gasket; 13. a second gasket; 14. a sampling tube body; 141. A nozzle; 142. a pipe body; 143. a pipe base; 15. a base is connected.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a sampling cutter, including cutterbar main part 1, the inside of cutterbar main part 1 is equipped with separation chamber 7, the first seat 8 of detaining of one side fixedly connected with of separation chamber 7, the opposite side fixedly connected with second of separation chamber 7 detains seat 10, one side of cutterbar main part 1 is equipped with entry end cap 3, one side of keeping away from cutterbar main part 1 in one side of entry end cap 3 is equipped with inlet joint 2, inlet joint 2 runs through entry end cap 3, one side of keeping away from inlet joint 2 in one side of entry end cap 3 has first arch 6, one side of keeping away from entry end cap 3 in one side of cutterbar main part 1 is equipped with export end cap 5, one side of keeping away from cutterbar main part 1 in one side of export end cap 5 is equipped with pagoda pipe joint 4, pagoda pipe joint 4 runs through export end cap 5, one side of keeping away from pagoda pipe.

In this embodiment: the cutter body 1 can seal the detection gas extracted through the inlet joint 2, the hydrophobic oil absorption adsorbent 11 can effectively separate water vapor and capture and adsorb the water vapor, oil drop particles and smaller target test particles in the gas to be detected can smoothly pass through the adsorbent without being affected, the hydrophobic oil absorption adsorbent 11 can be replaced and can be replaced after the hydrophobic oil absorption adsorbent 11 completes a work period (full water is absorbed), thus the consumable cost of detection can be reduced, the core of the original cutter is on a collision plate coated with vaseline and can complete particle cutting action by multilayer collision, the cutter adopts the hydrophobic oil absorption adsorbent 11 to replace the collision plate, the processing difficulty of devices is reduced, in addition, the cutter adopting the structure can obtain higher cost performance, when the cutter works, the gas is taken into the separation chamber 7 through the inlet joint 2, block the large granule oil drop in the gas through hydrophobic oil absorption adsorbent 11 in the separation chamber 7, reduce the large granule oil drop content in the gas sample, leave separation chamber 7 through pagoda pipe joint 4 at last, through separating the large granule oil drop in the gas that awaits measuring, the accuracy of reinforcing detection, entry end cap 3 is connected with separation chamber 7 block through first arch 6 and first knot seat 8, export end cap 5 is detained seat 10 through the second and is connected with separation chamber 7 block through the second arch 9, can make entry end cap 3 and export end cap 5 can plug up the both ends of cutterbar main part 1, carry out the block through entry end cap 3 and export end cap 5 and cutterbar main part 1 and be connected, when maintaining the cutterbar, can accomplish the dismantlement and change the cutterbar under the condition of not using the instrument.

Specifically, the inlet plug 3 and the separation chamber 7 are connected with each other through a first bulge 6 and a first buckle seat 8 in a clamping manner; the inlet plug 3 is connected with the separation chamber 7 in a clamping mode through the first protrusion 6 and the first buckle seat 8, so that the inlet plug 3 can be connected with the cutter body 1 in a clamping mode, and the cutter is more convenient to disassemble when being maintained.

Specifically, the outlet plug 5 and the separation chamber 7 are connected with each other through a second bulge 9 and a second buckle seat 10 in a clamping manner; the outlet plug 5 is connected with the separation chamber 7 in a clamping manner through the second protrusion 9 and the second buckle seat 10, so that the outlet plug 5 can be connected with the cutter body 1 in a clamping manner, and the cutter is more convenient to disassemble when being maintained.

Specifically, the inner side wall of the first buckle seat 8 is fixedly connected with a first sealing gasket 12 which is positioned at the joint of the first protrusion 6 and the first buckle seat 8; by arranging the first sealing gasket 12, the friction force between the first protrusion 6 and the first buckle seat 8 can be increased, and the fixing effect between the first protrusion 6 and the first buckle seat 8 can be increased.

Specifically, the inner side wall of the second buckle seat 10 is fixedly connected with a second sealing gasket 13 which is positioned at the joint of the second protrusion 9 and the second buckle seat 10; by arranging the second sealing gasket 13, the friction force between the second protrusion 9 and the second buckle seat 10 can be increased, and the fixing effect between the second protrusion 9 and the second buckle seat 10 can be increased.

Specifically, the cutter body 1 has a length of 100mm and a width of 30 mm; the whole overall dimension of the cutter is 30 x 100mm, and compared with other cutters, the cutter is smaller in size, lighter in weight, beneficial to miniaturization of equipment, more convenient to assemble and lower in production cost.

Specifically, the sampling gun comprises a sampling tube main body 14, wherein the sampling tube main body 14 comprises a nozzle 141, a tube body 142 and a tube base 143; a nozzle 141 is arranged on one side of the tube body 142, and a tube base 143 is fixedly connected to one side of the tube body 142 away from the nozzle 141; the sampling tube body 14 is fixedly connected with the connection base 15 through a tube base 143. The sampling tube body 14 is straight. The sampling gun is simple in structure and easy to produce and process.

In particular, the particulate cutting point of the sampling cutter body 1 lies between 0.1 μm and 80 μm. More specifically, the particulate cutting point of the sampling cutter body 1 is between 0.5 μm and 10 μm. Due to the characteristics of oil fume pollutants, if two kinds of oil fume particles need to be cut, the cutting point is selected to be any point between 0.1 mu m and 80 mu m, and the cutting effect is basically not different, so that the constant speed characteristic limitation of an air pump matched with a cutter is greatly relaxed, namely, within an extremely wide range of air extraction speed, the cutter can acquire real oil fume fine particle samples.

The utility model discloses a theory of operation and use flow: when the cutter works, the collected gas enters the separation chamber 7 of the cutter main body 1 through the inlet joint 2, the hydrophobic oil absorption body 11 in the separation chamber 7 absorbs large oil drops in the sampled gas to reduce the content of the large oil drops in the gas sample, and finally the gas leaves the separation chamber 7 through the pagoda pipe joint 4, when the cutter is maintained, the inlet plug 3 is pulled to ensure that the first bulge 6 on the inlet plug 3 is separated from the first buckle seat 8, then the outlet plug 5 is pulled to ensure that the second bulge 9 on the outlet plug 5 is separated from the second buckle seat 10, the disassembly of the cutter is completed, so that the cutter is maintained, the first sealing gasket 12 can increase the friction force between the first bulge 6 and the first buckle seat 8, the fixing effect between the first bulge 6 and the first buckle seat 8 is increased, the second sealing gasket 13 can increase the friction force between the second bulge 9 and the second buckle seat 10, increasing the fixing effect between the second protrusion 9 and the second fastener seat 10.

Finally, it should be noted that: 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 equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling cutter, characterized by: comprises a cutter main body (1), a separation chamber (7) is arranged in the cutter main body (1), a first buckle seat (8) is fixedly connected to one side of the separation chamber (7), a second buckle seat (10) is fixedly connected to the other side of the separation chamber (7), an inlet plug (3) is arranged on one side of the cutter main body (1), an inlet connector (2) is arranged on one side of the inlet plug (3) far away from the cutter main body (1), the inlet connector (2) penetrates through the inlet plug (3), a first bulge (6) is arranged on one side of the inlet plug (3) far away from the inlet connector (2), an outlet plug (5) is arranged on one side of the cutter main body (1) far away from the inlet plug (3), a pagoda pipe connector (4) is arranged on one side of the outlet plug (5) far away from the cutter main body (1), the pagoda pipe joint (4) penetrates through the outlet plug (5), one side of the outlet plug (5) is far away from one side of the pagoda pipe joint (4) and is provided with a second protrusion (9), and a hydrophobic oil absorption adsorbent (11) is arranged inside the separation chamber (7).

2. A sampling cutter according to claim 1, wherein: the inlet plug (3) and the separation chamber (7) are connected through the first bulge (6) and the first buckle seat (8) in a clamping mode.

3. A sampling cutter according to claim 1, wherein: the outlet plug (5) and the separation chamber (7) are connected in a clamping mode through the second protrusion (9) and the second buckle seat (10).

4. A sampling cutter according to claim 1, wherein: the inner side wall of the first buckle seat (8) is fixedly connected with a first sealing gasket (12) which is positioned at the joint of the first protrusion (6) and the first buckle seat (8).

5. A sampling cutter according to claim 1, wherein: the inner side wall of the second buckling seat (10) is fixedly connected with a second sealing gasket (13) which is positioned at the joint of the second protrusion (9) and the second buckling seat (10).

6. A sampling cutter according to claim 1, wherein: the cutter body (1) has a length of 100mm and a width of 30 mm.

7. A sampling cutter according to claim 1, wherein: the inlet joint (2) on the cutter body (1) is connected with a sampling gun.

8. A sampling cutter according to claim 7, wherein: the sampling gun comprises a sampling tube main body (14), wherein the sampling tube main body (14) comprises a nozzle (141), a tube body (142) and a tube base (143); a nozzle (141) is arranged on one side of the pipe body (142), and a pipe base (143) is fixedly connected to one side, far away from the nozzle (141), of the pipe body (142); the sampling tube main body (14) is fixedly connected with the connecting base (15) through a tube base (143).

9. A sampling cutter according to any one of claims 1 to 8, wherein: the particulate cutting point of the sampling cutter body (1) is between 0.1 μm and 80 μm.

10. A sampling cutter according to claim 9, wherein: the particulate cutting point of the sampling cutter body (1) is between 0.5 and 10 μm.