Clean compressed air dust particle detection buffer device

Abstract

The utility model discloses a clean compressed air dust particle detection buffer device which comprises an air using point, a pressure reducing valve, a detector and a sampler, one end of the pressure reducing valve is communicated with a conveying pipe, and one side of the conveying pipe is provided with a lower buffer shell and an upper buffer shell. The inner wall of the lower buffer shell and the inner wall of the upper buffer shell are each provided with a first containing groove and a second containing groove, the inner wall of each first containing groove is slidably connected with an air diffuser, a plurality of through holes are formed in the surface of each air diffuser, the gas using point is communicated with the pressure reducing valve through a pipeline, and the sampler is electrically connected with the detector. The detector is located on the inner side of the upper buffer shell and the inner side of the lower buffer shell, a plurality of connecting blocks are fixed to the surface of the lower buffer shell and the surface of the upper buffer shell, and mounting holes are formed in the surfaces of the connecting blocks. By arranging the replaceable air diffuser, the pressure and the flow velocity of compressed air can be further reduced, so that the sampling flow velocity and the air flow velocity can be matched more easily, and the accuracy of a detection result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressed air dust particle detection technical field, concretely is a kind of clean compressed air dust particle detection buffer device. BACKGROUND

[0002] Clean compressed air is the power, process gas commonly used in pharmaceutical industry, since it is directly contacted with medicine, so its cleanliness needs to be strictly controlled.Dust particle control is more conventional.

[0003] When detecting dust particles of clean compressed air, compressed air is difficult to collect directly due to its high pressure;Even if the pressure is reduced using a pressure reducing valve, the sampling flow rate and airflow flow rate are difficult to match, affecting the accuracy of the test results. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of clean compressed air dust particle detection buffer device, by setting replaceable flow diffuser, the pressure and flow rate of compressed air can be further slowed down, so that sampling flow rate and airflow flow rate can be more easily matched, improve detection result accuracy.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of clean compressed air dust particle detection buffer device, including gas point, pressure reducing valve, detector and sampler, the one end of the pressure reducing valve is communicated with conveying pipe, the conveying pipe one side is provided with lower buffer shell and upper buffer shell, the inner wall of the lower buffer shell and upper buffer shell is all set with first accommodating groove and second accommodating groove, the first accommodating groove inner wall is slidably connected with flow diffuser, the surface of the flow diffuser is set with multiple through holes, the gas point is communicated with pressure reducing valve by pipeline, the sampler is electrically connected with detector, the detector is located in the inner side of upper buffer shell and lower buffer shell, the surface of the lower buffer shell and upper buffer shell is fixed with multiple connecting blocks, the surface of the connecting block is set with mounting hole, the second accommodating groove is internally provided with limiting structure, the surface of the lower buffer shell and upper buffer shell is provided with sealing structure.

[0006] As a kind of clean compressed air dust particle detection buffer device of the utility model preferably, the second accommodating groove internal limiting structure includes positioning frame and limiting frame, the surface of the positioning frame is fixed with two limiting sleeves, the limiting sleeve is located on the surface of positioning frame front and back two sides, the surface of the limiting frame is fixed with four U-shaped blocks, the surface of the U-shaped block is hinged with movable block, the inner wall of the limiting sleeve is slidably connected with sleeve, the inner wall of the sleeve is threadedly connected with screw rod, the screw rod one end and movable block surface fixed connection.

[0007] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the movable block surface of upper and lower two sides is fixed with telescopic rod, and one end of telescopic rod is fixedly connected with the surface of positioning frame.

[0008] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the inner wall of the limiting sleeve is fixed with a limiting ring, the surface of the sleeve is provided with a positioning groove matched with the limiting ring, and the limiting ring is slidably connected with the inner wall of the positioning groove.

[0009] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the surface sealing structure of the lower buffer shell and the upper buffer shell includes a first sealing gasket, the first sealing gasket is fixedly connected with the top of the lower buffer shell, the surface of the upper buffer shell is provided with a sealing groove matched with the first sealing gasket, and the inner wall of the first accommodating groove is fixedly provided with a second sealing gasket.

[0010] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the surface of the lower buffer shell and the upper buffer shell is fixed with an extension shell, the surface of the conveying pipe is fixed with a plurality of sealing rings, and the inner wall of the extension shell is provided with a mounting groove matched with the sealing ring.

[0011] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the top of the lower buffer shell and the bottom of the upper buffer shell are fixedly embedded with a first magnet.

[0012] As a kind of clean compressed air dust particle detection buffer device preferred of the utility model, the inner wall of the second accommodating groove and the surface of the positioning frame are fixedly provided with a second magnet.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] In the utility model, the high-pressure air in the gas point can pass through the pressure reducing valve for pressure reduction first, and then enter the inside of the lower buffer shell and the upper buffer shell through the conveying pipe. At this time, the high-pressure air will contact the diffuser and pass through the through hole to pass through the diffuser. In this process, the compressed air can enter the space on the right side of the diffuser more uniformly after being dispersed through multiple through holes, and finally enter the inside of the detector. This helps to reduce the inconsistency of gas flow rate, makes the sampling more uniform, improves the reliability and accuracy of the detection result of the sampler, effectively controls the gas flow rate entering the inside of the detector through the design of the diffuser, makes it more close to the ideal sampling condition, which not only can improve the detection efficiency, but also can ensure the comparability between different batches of sampling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a partial sectional three-dimensional structure schematic view of the utility model;

[0017] Figure 3 It is a partial sectional split structure schematic view of the utility model;

[0018] Figure 4 It is a partial structure schematic view of the utility model;

[0019] Figure 5 It is a partial sectional structure schematic view of the utility model.

[0020] In the figure: 1, with gas point; 2, pressure reducing valve; 3, detector; 4, sampler; 5, conveying pipe; 6, lower buffer shell; 7, upper buffer shell; 8, connecting block; 9, flow distributor; 10, through hole; 11, first containing groove; 12, second containing groove; 13, extension shell; 14, first sealing gasket; 15, second sealing gasket; 16, first magnet; 17, positioning frame; 18, limiting frame; 19, U-shaped block; 20, movable block; 21, limiting sleeve; 22, sleeve; 23, screw rod; 24, telescopic rod; 25, limiting ring; 26, second magnet; 27, sealing ring. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5 A clean compressed air dust particle detection buffer device, including with gas point 1, pressure reducing valve 2, detector 3 and sampler 4, one end of pressure reducing valve 2 is communicated with conveying pipe 5, conveying pipe 5 one side is provided with lower buffer shell 6 and upper buffer shell 7, the inner wall of lower buffer shell 6 and upper buffer shell 7 is all opened with first containing groove 11 and second containing groove 12, the inner wall of first containing groove 11 is slidably connected with flow distributor 9, flow distributor 9 surface is opened with multiple through holes 10, with gas point 1 and pressure reducing valve 2 are communicated by pipeline, sampler 4 and detector 3 are electrically connected, detector 3 is located in the inside of upper buffer shell 7 and lower buffer shell 6, the surface of lower buffer shell 6 and upper buffer shell 7 is fixed with multiple connecting blocks 8, the surface of connecting block 8 is opened with mounting hole, the inside of second containing groove 12 is provided with limiting structure, the surface of lower buffer shell 6 and upper buffer shell 7 is provided with sealing structure;

[0022] In the detection, the high-pressure air in the gas point 1 can first pass through the pressure reducing valve 2 to reduce the pressure, and then enter the inside of the lower buffer shell 6 and the upper buffer shell 7 through the conveying pipe 5. At this time, the high-pressure air will contact the diffuser 9 and pass through the through hole 10 of the diffuser 9. In this process, the compressed air can be more evenly distributed into the space on the right side of the diffuser 9 after passing through multiple through holes 10, and finally enter the inside of the detector 3. This helps to reduce the inconsistency of the gas flow rate, making the sampling more uniform, and improving the reliability and accuracy of the detection results of the sampler 4. Through the design of the diffuser 9, the gas flow rate entering the inside of the detector 3 can be effectively controlled to be closer to the ideal sampling condition. This not only improves the detection efficiency, but also ensures the comparability between different batches of sampling. In addition, the device can also adjust the air flow rate according to the needs to select different thicknesses of the diffuser 9. When the diffuser 9 becomes thicker, the air needs to pass through a longer distance to move from one area to another. In this case, the air flow path becomes longer, which will cause more friction loss, thereby further reducing the pressure and speed of the air. Therefore, increasing the thickness of the diffuser 9 can achieve better pressure drop and flow rate control. When replacing, the upper buffer shell 7 and the lower buffer shell 6 can be removed first, then the original diffuser 9 located in the first containing groove 11 is taken out, and the diffuser 9 with the required thickness is placed in the second containing groove 12. The limiting structure in the second containing groove 12 can limit the diffuser 9 with the replaced thickness. After the installation of the diffuser 9 is completed, the lower buffer shell 6 and the upper buffer shell 7 are combined, and the mounting holes on the surface of the connecting block 8 are combined and installed by using bolts. The sealing structure on the surface of the lower buffer shell 6 and the upper buffer shell 7 can improve the sealing performance of the combined lower buffer shell 6 and upper buffer shell 7, so as to prevent the compressed air from leaking.

[0023] Further, the limiting structure in the second containing groove 12 includes a positioning frame 17 and a limiting frame 18. Two limiting sleeves 21 are fixed on the surface of the positioning frame 17, and the limiting sleeves 21 are located on the front and rear surfaces of the positioning frame 17. Four U-shaped blocks 19 are fixed on the surface of the limiting frame 18. The surface of the U-shaped block 19 is hinged with a movable block 20. A sleeve 22 is slidably connected to the inner wall of the limiting sleeve 21. A lead screw 23 is threadedly connected to the inner wall of the sleeve 22. One end of the lead screw 23 is fixedly connected to the surface of the movable block 20.

[0024] The rotation of the front and rear sleeves 22 can make the screw rod 23 move in the inner wall of the sleeve 22 under the influence of the thread, so that the screw rod 23 can drive the limiting frame 18 to move through the movable block 20 and the U-shaped block 19, and the distance between the limiting frame 18 and the positioning frame 17 can be adjusted. In this way, when the thicker flow distributor 9 is placed in the second containing groove 12, the position of the limiting frame 18 can be adjusted to limit the flow distributor 9 of different thicknesses in the second containing groove 12. The design of the U-shaped block 19 and the movable block 20 can make the movable block 20 rotate slightly in the U-shaped block 19 when the rotation speeds of the front and rear sleeves 22 are different, thereby avoiding the situation of being stuck, and the movable range of the limiting frame 18 can be adjusted more easily.

[0025] Further, the upper and lower movable blocks 20 are fixed with telescopic rods 24 on the surfaces thereof, one end of each telescopic rod 24 is fixedly connected with the surface of the positioning frame 17;

[0026] When the screw rod 23 moves in the sleeve 22, the distance between the positioning frame 17 and the limiting frame 18 will change, so that the telescopic rods 24 can also be extended or retracted, and the limiting frame 18 can be guided up and down to improve the stability of the limiting frame 18 when it moves.

[0027] Further, a limiting ring 25 is fixed in the inner wall of the limiting sleeve 21, and a positioning groove matched with the limiting ring 25 is formed in the surface of the sleeve 22, and the limiting ring 25 is slidably connected with the inner wall of the positioning groove;

[0028] When the sleeve 22 rotates in the inner wall of the limiting sleeve 21, the limiting ring 25 can slide in the positioning groove, thereby avoiding the sleeve 22 from being separated from the limiting sleeve 21.

[0029] Further, the surface sealing structure of the lower buffer shell 6 and the upper buffer shell 7 includes a first sealing gasket 14, the first sealing gasket 14 is fixedly connected with the top of the lower buffer shell 6, a sealing groove matched with the first sealing gasket 14 is formed in the surface of the upper buffer shell 7, and a second sealing gasket 15 is fixed in the inner wall of the first containing groove 11;

[0030] When the lower buffer shell 6 and the upper buffer shell 7 are closed, the first sealing gasket 14 will be extruded and enter the sealing groove, so that the elastic deformation of the first sealing gasket 14 can make the lower buffer shell 6 and the upper buffer shell 7 have a sealing effect after being combined. After the flow distributor 9 is placed in the first containing groove 11, the second sealing gasket 15 will also be compressed, so that the limiting effect of the flow distributor 9 in the first containing groove 11 is better.

[0031] Further, the surface of the lower buffer shell 6 and the surface of the upper buffer shell 7 are both fixed with an extension shell 13, a plurality of sealing rings 27 are fixed on the surface of the conveying pipe 5, and an installation groove matched with the sealing ring 27 is formed in the inner wall of the extension shell 13;

[0032] The conveying pipe 5 can enter into the inside of the upper and lower extension shell 13, and the sealing ring 27 on the surface of the conveying pipe 5 can also enter into the installation groove, so that the connection between the conveying pipe 5 and the extension shell 13 can also be sealed, avoiding the leakage of compressed air from the connection between the conveying pipe 5 and the lower buffer shell 6 and the upper buffer shell 7.

[0033] Further, the first magnet 16 is embedded and fixed on the top of the lower buffer shell 6 and the bottom of the upper buffer shell 7;

[0034] After the lower buffer shell 6 and the upper buffer shell 7 are closed, the first magnets 16 on the upper and lower sides can attract each other, and an additional contact force can be created through the attraction between the two magnets, so as to further improve the sealing performance of the closed lower buffer shell 6 and upper buffer shell 7.

[0035] Further, the second magnet 26 is fixed on one side of the inner wall of the second accommodating groove 12 and the surface of the positioning frame 17;

[0036] When the positioning frame 17 is put into the inside of the second accommodating groove 12, the second magnet 26 on the surface of the positioning frame 17 and the second magnet 26 on the inner wall of the first accommodating groove 11 can attract each other, so that the positioning frame 17 can be adsorbed in the first accommodating groove 11, and the positioning frame 17 is not easy to move after the lower buffer shell 6 and the upper buffer shell 7 are combined.

[0037] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clean compressed air dust particle detection buffer device, comprising a gas point (1), a pressure reducing valve (2), a detector (3) and a sampler (4), characterized in that: The reducing valve (2) one end is communicated with the delivery pipe (5), one side of the delivery pipe (5) is provided with lower buffer shell (6) and upper buffer shell (7), the inner wall of lower buffer shell (6) and upper buffer shell (7) is all provided with first accommodating groove (11) and second accommodating groove (12), the inner wall of first accommodating groove (11) is slidably connected with diffuser (9), a plurality of through holes (10) are formed in the surface of diffuser (9), the gas point (1) is communicated with reducing valve (2) through pipeline, the sampler (4) is electrically connected with detector (3), the detector (3) is located in the inner side of upper buffer shell (7) and lower buffer shell (6), the surface of lower buffer shell (6) and upper buffer shell (7) is fixed with a plurality of connecting blocks (8), the surface of connecting block (8) is provided with mounting hole, the inside of second accommodating groove (12) is provided with limiting structure, the surface of lower buffer shell (6) and upper buffer shell (7) is provided with sealing structure.

2. A clean compressed air dust particle detection buffer device according to claim 1, characterized in that: The limiting structure in the second accommodating groove (12) includes a positioning frame (17) and a limiting frame (18), the surface of the positioning frame (17) is fixed with two limiting sleeves (21), the limiting sleeves (21) are located on the front and back surfaces of the positioning frame (17), the surface of the limiting frame (18) is fixed with four U-shaped blocks (19), the surface of the U-shaped block (19) is hinged with a movable block (20), the inner wall of the limiting sleeve (21) is slidably connected with a sleeve (22), the inner wall of the sleeve (22) is threadedly connected with a lead screw (23), one end of the lead screw (23) is fixedly connected with the surface of the movable block (20).

3. A clean compressed air dust particle detection buffer device according to claim 2, characterized in that: The surface of the movable block (20) on the upper and lower sides is fixedly connected with a telescopic rod (24), one end of the telescopic rod (24) is fixedly connected with the surface of the positioning frame (17).

4. A clean compressed air dust particle detection buffer device according to claim 2, characterized in that: The inner wall of the limiting sleeve (21) is fixedly connected with a limiting ring (25), the surface of the sleeve (22) is provided with a positioning groove matched with the limiting ring (25), and the limiting ring (25) is slidably connected with the inner wall of the positioning groove.

5. A clean compressed air dust particle detection buffer device according to claim 1, wherein: The surface sealing structure of the lower buffer shell (6) and the upper buffer shell (7) includes a first sealing gasket (14), the first sealing gasket (14) is fixedly connected with the top of the lower buffer shell (6), the surface of the upper buffer shell (7) is provided with a sealing groove matched with the first sealing gasket (14), and the inner wall of the first accommodating groove (11) is fixedly connected with a second sealing gasket (15).

6. A clean compressed air dust particle detection buffer apparatus according to claim 1, wherein: The surface of the lower buffer shell (6) and the upper buffer shell (7) is fixedly connected with an extension shell (13), the surface of the delivery pipe (5) is fixedly connected with a plurality of sealing rings (27), and the inner wall of the extension shell (13) is provided with a mounting groove matched with the sealing ring (27).

7. A clean compressed air dust particle detection buffer device according to claim 1, wherein: The top of the lower buffer shell (6) and the bottom of the upper buffer shell (7) are both embeddedly fixed with a first magnet (16).

8. A clean compressed air dust particle detection buffer device according to claim 2, characterized in that: The inner wall of the second accommodating groove (12) and the surface of the positioning frame (17) are both fixedly connected with a second magnet (26).

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