On-line powder sampler

Abstract

The utility model discloses an on-line powder sampler which comprises a valve casing, one end of the valve casing is connected with a cylinder body of a rotating cylinder, one end of a rotating valve core is positioned in the valve casing and connected with a rotating head of the rotating cylinder, the other end of the rotating valve core extends out of the valve casing, and a hollow channel is arranged on the rotating valve core. A set included angle is formed between the central axis of the hollow channel and the central axis of the rotary valve element, one end of the hollow channel is a material taking opening, the other end of the hollow channel is a channel discharging opening, a valve shell bottom opening is formed in the side wall of the valve shell, and when a rotary head of the rotary air cylinder drives the rotary valve element to rotate to a set position, the channel discharging opening faces downwards and is communicated with the valve shell bottom opening. The material taking opening faces upwards and is exposed out of the side wall of the end of the valve shell. The full-automatic sampling valve is simple in structure, full-automatic sampling without powder residues can be achieved only by driving the rotary air cylinder, the valve shell and the rotary valve element are pneumatically sealed, black spots formed by sample residues in a gap at the sealing position can be avoided, and the full-automatic sampling valve is safe, free of residues and high in working efficiency.

Description

Technical Field

[0001] The utility model relates to the field of powder sampling equipment, in particular to an online powder sampler. Background Art

[0002] At present, in the food and pharmaceutical industry, the synthetic biology industry, and the chemical industry, samplers are generally used to complete the extraction of powder samples. In the process where physical and chemical analysis of powder samples is required, special samplers are used for pipelines or equipment. Traditional sampling uses open-cover sampling, but when the pipeline or equipment is opened, external dust or bacteria can easily enter the original closed environment, causing secondary contamination of the powder. At the same time, the mechanical structure of the existing powder sampler itself, and the sealing form or sampling method of the pipeline or equipment are relatively complex, resulting in high costs. Black spots are formed in the gaps at the seal, and the residues formed during sampling affect the representativeness of the sampling or cause product contamination. Utility Model Content

[0003] The purpose of the utility model is to provide a powder online sampler to solve the above problems in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical means:

[0005] A powder online sampler includes a valve housing, one end of the valve housing is connected to the cylinder body of a rotary cylinder, one end of a rotary valve core is located in the valve housing and connected to the rotary head of the rotary cylinder, the other end of the rotary valve core extends out of the valve housing, a hollow channel is provided on the rotary valve core, the central axis of the hollow channel forms a set angle with the central axis of the rotary valve core, one end of the hollow channel is a material taking port, and the other end is a channel discharge port, a valve housing bottom opening is provided on a side wall of the valve housing, and when the rotary head of the rotary cylinder drives the rotary valve core to rotate to a set position, the channel discharge port faces downward and is connected to the valve housing bottom opening, and the material taking port faces upward and is exposed from the end side wall of the valve housing;

[0006] A sample outlet pipe is provided at the bottom opening of the valve housing;

[0007] The valve housing is provided with a compressed air interface;

[0008] When the rotary cylinder drives the rotary valve core to rotate to a set position, the central axis of the hollow channel is collinear with the central axis of the sample outlet tube;

[0009] The bottom opening of the valve housing is provided with an extension pipe portion on the outside of the valve housing, and the sample outlet pipe is fixed to the extension pipe portion by a clamp;

[0010] The valve housing and the cylinder body of the rotary cylinder are fixed by a clamp;

[0011] A protective sleeve is provided on the outside of the rotating cylinder;

[0012] The material of the rotary valve core is Teflon;

[0013] The valve housing is made of food-grade stainless steel or corrosion-resistant stainless steel;

[0014] The sample outlet pipe is provided with a valve.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. During sampling operation, you only need to control the pneumatic rotation of the cylinder to complete automatic sampling;

[0017] 2. A compressed air interface is provided on the valve housing to form a pneumatic seal between the valve housing and the rotating valve core, which can avoid the sample residue in the gap of the seal to form black spots;

[0018] 3. After sampling is completed, continue to rotate the rotary valve core to a certain angle to achieve automatic sealing of the sampler.

[0019] Safe, no residue, high working efficiency;

[0020] 4. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 A schematic diagram of the structure of the sampler provided in an embodiment of the present invention when installed on a pipeline and the angle during sampling;

[0023] Figure 3 A schematic structural diagram of the angle of the sampler provided in an embodiment of the present invention when it is installed on a pipeline and not sampling;

[0024] Figure 4 A schematic diagram of the structure of the sampler provided in an embodiment of the present invention when it is mounted on a tank body and when sampling;

[0025] Figure 5 This is a schematic structural diagram of the angle at which the sampler provided in an embodiment of the utility model is installed on a tank body and is not sampling.

[0026] Among them: 1-valve housing, 2-rotating valve core, 3-sample outlet tube, 4-rotating cylinder, 5-protective sleeve, 6-compressed air interface, 7-channel outlet, 8-hollow channel, 9-feeding port, 10-pipeline, 11-tank body, 12-valve housing bottom opening. DETAILED DESCRIPTION

[0027] In order to facilitate those skilled in the art to understand and implement the present invention, the present invention is further described in detail below with reference to the following examples. It should be noted that the examples described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0028] Example 1:

[0029] like Figure 1 A powder online sampler includes a valve housing 1, one end of the valve housing 1 is connected to the cylinder body of the rotary cylinder 4, one end of the rotary valve core 2 is located in the valve housing 1 and is connected to the rotary head of the rotary cylinder 4, the rotary valve core 2 can rotate in the valve housing 1 under the drive of the rotary head of the rotary cylinder 4, the part of the rotary valve core 2 located inside the valve housing 1 is in clearance with the valve housing 1, the other end of the rotary valve core 2 extends out of the other end of the valve housing 1, the rotary valve core 2 has a hollow channel 8, the central axis of the hollow channel 8 is aligned with the rotary valve core 2 The central axis of the hollow channel 8 forms a set angle. As a preferred embodiment, the set angle is 45 degrees. One end of the hollow channel 8 is a material intake port 9, and the other end is a channel discharge port 7. The side wall of the valve housing 1 is provided with a valve housing bottom opening 12. The valve housing bottom opening 12 is opened on the bottom outer wall of the valve housing 1 arranged laterally. When the rotary head of the rotary cylinder 4 drives the rotary valve core 2 to rotate to the set position, the channel discharge port 7 faces downward and is connected to the valve housing bottom opening 12, and the material intake port 9 faces upward and is exposed to the end side wall of the valve housing 1. By driving the rotary valve core 2 to rotate in the valve housing 1 to a position deviated from the set position by the rotary head of the rotary cylinder 4, the channel discharge port 7 can be disconnected from the valve housing bottom opening 12.

[0030] In this embodiment, the valve housing 1 is horizontally installed on the longitudinal pipe 10, one end of the valve housing 1 is connected to the cylinder body of the rotary cylinder 4, and the end face of the other end is adapted to the shape of the pipe side of the pipe 10 and is sealed. One end of the rotary valve core 2 is connected to the rotating head of the rotary cylinder 4, and the other end extends into the pipe 10. The material intake port 9 on the rotary valve core 2 is located inside the pipe 10, and the bottom opening 12 of the valve housing is located outside the pipe 10.

[0031] The valve housing 1 is provided with a compressed air interface 6, so that a pneumatic seal is adopted between the valve housing 1 and the rotary valve core 2, thereby avoiding the formation of black spots by sample residue in the gap of the seal, reducing pollution and improving hygiene and safety;

[0032] In some embodiments, there are multiple compressed air interfaces 6 , which are evenly distributed around the valve housing 1 .

[0033] In some embodiments, a sample outlet tube 3 is provided at the bottom opening 12 of the valve housing. When the hollow channel 8 on the rotary valve core 2 is rotated to a certain angle, the central axis of the hollow channel 8 coincides with the central axis of the sample outlet tube 3, so that the powder can enter the sample outlet tube 3 to the greatest extent after falling out of the channel outlet 7.

[0034] An extension pipe is provided on the outside of the valve housing 1, and the sample outlet pipe 3 is fixed to the extension pipe by a clamp; the valve housing 1 and the cylinder body of the rotary cylinder 4 are fixed by a clamp. The clamp method is simple to operate and convenient to use.

[0035] In some embodiments, a protective cover 5 is provided on the outside of the rotating cylinder 4 to prevent the rotating cylinder 4 from being damaged by the outside.

[0036] The material of the rotary valve core 2 is Teflon, preferably food-grade Teflon, which is safe and hygienic and avoids contamination of the powder.

[0037] The valve housing 1 is made of stainless steel, preferably food-grade stainless steel or corrosion-resistant stainless steel, which can increase the service life of the utility model.

[0038] In some embodiments, a valve is provided on the sample outlet pipe 3. When sampling is not required, the valve is closed to isolate the pipe 10 from the outside world to avoid secondary contamination of the powder.

[0039] like Figure 2 The arrow in the figure indicates the powder flow direction. First, supply compressed air to compressed air port 6, then open the valve on sample outlet tube 3. Then, activate rotary cylinder 4, which in turn rotates valve core 2. Sampling is optimal when feed port 9 is oriented directly in the direction of the powder flow. After entering feed port 9, the powder falls by its own weight into the container below sample outlet tube 3, completing sampling.

[0040] like Figure 3 After the sampling is completed, continue to rotate the rotary valve core 2, and the relative area between the feeding port 9 and the powder flow direction is reduced. When the feeding port 9 is turned away from the powder flow direction, the powder cannot enter the feeding port 9, completing the automatic closure of the utility model, and then stop supplying air to the compressed air interface 6, and then close the valve on the sample outlet tube 3.

[0041] In some embodiments, the rotary cylinder 4 is replaced by a motor.

[0042] Example 2:

[0043] like Figures 3-4 In this embodiment, the valve housing 1 is horizontally mounted on the inclined surface of the tank body 11. One end of the valve housing 1 is connected to the cylinder body of the rotary cylinder 4, and the end surface of the other end is adapted to the inclined surface shape of the tank body 11 and is sealed. One end of the rotary valve core 2 is connected to the rotary head of the rotary cylinder 4, and the top of the other end is located inside the tank body 11. When the rotary head of the rotary cylinder 4 drives the rotary valve core 2 to rotate to a set position, the channel discharge port 7 faces downward and is connected to the bottom opening 12 of the valve housing. The bottom opening 12 of the valve housing is located outside the tank body 11, and the material extraction port 9 faces upward and is exposed to the end side wall of the valve housing 1 and is located inside the tank body 11. By driving the rotary valve core 2 to rotate in the valve housing 1 to a position deviated from the set position by the rotary head of the rotary cylinder 4, the channel discharge port 7 can be disconnected from the bottom opening 12 of the valve housing.

[0044] Other details are the same as those in Example 1.

[0045] The specific implementation examples described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitute similar methods to the specific implementation examples described herein without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A powder online sampler, comprising a valve housing (1), characterized in that: One end of the valve housing (1) is connected to the cylinder body of the rotary cylinder (4); one end of the rotary valve core (2) is located in the valve housing (1) and is connected to the rotary head of the rotary cylinder (4); the other end of the rotary valve core (2) extends out of the valve housing (1); a hollow channel (8) is provided on the rotary valve core (2); the central axis of the hollow channel (8) forms a set angle with the central axis of the rotary valve core (2); one end of the hollow channel (8) is a material taking port (9) and the other end is a channel discharge port (7); a valve housing bottom opening (12) is provided on the side wall of the valve housing (1); when the rotary head of the rotary cylinder (4) drives the rotary valve core (2) to rotate to a set position, the channel discharge port (7) faces downward and is communicated with the valve housing bottom opening (12), and the material taking port (9) faces upward and is exposed from the end side wall of the valve housing (1).

2. A powder online sampler according to claim 1, characterized in that: It comprises a valve housing (1), wherein a sample outlet pipe (3) is provided at an opening (12) at the bottom of the valve housing.

3. The powder online sampler according to claim 1, characterized in that: A compressed air interface (6) is provided on the valve housing (1).

4. A powder online sampler according to claim 2, characterized in that: When the rotary head of the rotary cylinder (4) drives the rotary valve core (2) to rotate to a set position, the central axis of the hollow channel (8) is collinear with the central axis of the sample outlet tube (3).

5. The powder online sampler according to claim 2, characterized in that: The bottom opening (12) of the valve housing is provided with an extension pipe portion outside the valve housing (1), and the sample outlet pipe (3) is fixed to the extension pipe portion via a clamp.

6. The powder online sampler according to claim 2, characterized in that: The valve housing (1) and the cylinder body of the rotary cylinder (4) are fixed via a clamp.

7. The powder online sampler according to claim 2, characterized in that: A protective sleeve (5) is provided on the outside of the rotary cylinder (4).

8. The powder online sampler according to claim 2, characterized in that: The material of the rotary valve core (2) is Teflon.

9. The powder online sampler according to claim 2, characterized in that: The valve housing (1) is made of stainless steel.

10. The powder online sampler according to claim 2, characterized in that: The sample outlet pipe (3) is provided with a valve.

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