Accurate sampling device used in drying tower of air compression system

Abstract

The invention provides a precise sampling device used in a drying tower of an air compression system, the precise sampling device comprises an auxiliary sampling pipe and a main sampling pipe, the side wall of the auxiliary sampling pipe is provided with an auxiliary sampling port, the side wall of the main sampling pipe is provided with a main sampling port, the main sampling pipe is movably inserted into the auxiliary sampling pipe, and the auxiliary sampling pipe is provided with a sampling port. And when the main sampling pipe and the auxiliary sampling pipe relatively move to a preset position, the main sampling opening is aligned with the auxiliary sampling opening. The accurate sampling device can go deep into the tank bottom, the sampling part can be accurately known through the leakage part of the accurate sampling device, accurate sampling, testing and analysis can be carried out on samples at different parts, the data reliability is improved, and the sampling process is safe.

Description

Technical Field

[0001] The present application belongs to the technical field of fume collection of molten metal furnaces in the metallurgical industry, and specifically, relates to a precise sampling device for the interior of a drying tower of an air compression system. Background Art

[0002] The portable sampling tool inside the drying tower of the air compression system is mainly used for sampling in the closed tank drying tower. The tool can penetrate into the bottom of the tank. When the tank is deep, the sampling position can be accurately known through the leaking part of the tool. For samples from different parts, accurate sampling, testing and analysis are carried out, which improves the reliability of data and plays a decisive role in the normal operation, adsorption and regeneration of the equipment. The molecular sieves that have been tested can be recovered and reused to save costs.

[0003] The traditional sampling drying tower is a closed storage tank. Personnel can only climb to the top and use their hands to take samples 500mm deep, and they cannot reach the molecular sieve at the bottom of the drying tower. The interior is usually in a certain pressure environment and the structure is relatively complex, which affects the accuracy of raw sampling. The maintenance workload is large, and personnel contaminate the samples when taking samples by hand, which greatly reduces the accuracy of the samples.

[0004] Air compression systems are widely used in many industrial fields. Drying towers are key equipment used to remove moisture and impurities from compressed air in air compression systems. In order to ensure the normal operation and drying effect of the drying tower, it is necessary to regularly sample and test the gas, desiccant, etc. inside the drying tower to analyze its composition, humidity, impurity content and other parameters. However, traditional sampling methods are often difficult to obtain representative samples accurately and conveniently, and the sampling process may interfere with the normal operation of the drying tower and even cause safety problems. Therefore, it is of great significance to develop an efficient, safe and accurate sampling device specifically suitable for the drying tower of the air compression system. Summary of the invention

[0005] The technical problem solved by the present application is: how to provide a device that can efficiently, safely and accurately sample the inside of a drying tower of an air compression system.

[0006] The present application provides a precise sampling device for use inside a drying tower of an air compression system, the precise sampling device comprising:

[0007] An auxiliary sampling tube, wherein the side wall of the auxiliary sampling tube is provided with an auxiliary sampling port;

[0008] A main sampling tube, a main sampling port is provided on the side wall of the main sampling tube, the main sampling tube is movably inserted into the auxiliary sampling tube, and when the main sampling tube and the auxiliary sampling tube move relatively to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

[0009] Optionally, the main sampling tube is rotatably inserted into the auxiliary sampling tube, and when the main sampling tube and the auxiliary sampling tube are relatively rotated to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

[0010] Optionally, the number of the auxiliary sampling ports and the number of the main sampling ports are both multiple, and the multiple auxiliary sampling ports are distributed at intervals along the length direction of the auxiliary sampling tube, and the multiple main sampling ports are distributed at intervals along the length direction of the main sampling tube.

[0011] Optionally, the main sampling tube includes a plurality of sections distributed along the length direction, each section is respectively provided with the main sampling port, and the sections are not connected to each other.

[0012] Optionally, the main sampling tube and the auxiliary sampling tube are relatively movable along the length direction of the main sampling tube, and when the main sampling tube and the auxiliary sampling tube are relatively moved to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

[0013] Optionally, the main sampling tube and the auxiliary sampling tube are relatively movable along the length direction of the main sampling tube. When the main sampling tube and the auxiliary sampling tube are relatively moved to a predetermined position, the main sampling port and the auxiliary sampling port overlap in the length direction.

[0014] Optionally, a welding handle is provided at the tail end of the auxiliary sampling tube.

[0015] Optionally, a rotating handle is provided at the tail end of the main sampling tube.

[0016] Optionally, a connector is provided at the head end of the auxiliary sampling tube, and the connector is in a pointed cone shape.

[0017] Optionally, the welding handle is used to connect to a drying tower tank to be sampled.

[0018] The present application provides a precise sampling device for the interior of a drying tower of an air compression system, which has the following technical effects:

[0019] The precise sampling device can penetrate deep into the bottom of the tank, and the sampling location can be accurately known through the leaking part of the precise sampling device. It can perform precise sampling, testing and analysis on samples from different locations, thus improving the reliability of the data and playing a decisive role in the normal operation, adsorption and regeneration of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a precise sampling device for the interior of a drying tower of an air compression system according to one or more embodiments;

[0021] Figure 2A schematic diagram of the use of a precise sampling device for the interior of a drying tower of an air compression system according to one or more embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Before describing the various embodiments of the present application in detail, the technical concept of the present application is first briefly described: At present, when sampling the inside of the drying tower of the air compression system, the sampling process has problems such as insufficient efficiency, safety and accuracy. To this end, the present application provides a precise sampling device for the inside of the drying tower of the air compression system, including an auxiliary sampling tube and a main sampling tube. The main sampling tube is movably inserted into the auxiliary sampling tube, and the auxiliary sampling tube extends into the inside of the drying tower to be sampled. When the two are relatively moved to a predetermined position, the sampling ports of the two sampling tubes are aligned, and sampling can be performed, that is, sampling can be performed by relative rotation of the main sampling tube and the auxiliary sampling tube. The sampling process is efficient, safe and accurate. The specific principle of the precise sampling device for the inside of the drying tower of the air compression system of the present application is described below in combination with more embodiments.

[0024] Specifically, Figure 1 and Figure 2 As shown, the first embodiment of the present invention is a precise sampling device for the interior of a drying tower of an air compression system, comprising an auxiliary sampling tube 10 and a main sampling tube 20. The side wall of the auxiliary sampling tube 10 is provided with an auxiliary sampling port 11, and the side wall of the main sampling tube 20 is provided with a main sampling port 21. The main sampling tube 20 is movably inserted into the auxiliary sampling tube 10. When the main sampling tube 20 and the auxiliary sampling tube 10 are relatively moved to a predetermined position, the main sampling port 21 is aligned with the auxiliary sampling port 11. Since both the auxiliary sampling tube 10 and the main sampling tube 20 extend into the interior of the drying tower to be sampled, the sample can enter the main sampling tube 20 from the auxiliary sampling port 11 and the main sampling port 21 to complete the sampling. Among them, when the auxiliary sampling tube 10 and the main sampling tube 20 continue to rotate relative to each other until the main sampling port 21 is not aligned with the auxiliary sampling port 11, the sample cannot enter the main sampling tube 20, and the sampled sample can be extracted at this time.

[0025] In one or more embodiments, the main sampling tube 20 is rotatably inserted into the auxiliary sampling tube 10, and when the main sampling tube 20 and the auxiliary sampling tube 10 are relatively rotated to a predetermined position, the main sampling port 21 is aligned with the auxiliary sampling port 11. Exemplarily, the main sampling tube 20 and the auxiliary sampling tube 10 are both circular tubes, and the two are coaxially arranged. When one of the tubes rotates around the axis, the relative position of the main sampling port 21 and the auxiliary sampling port 11 changes, and the two sampling ports are in two states of misalignment and alignment, so that the sampling process is controlled by the relative rotation of the two tubes.

[0026] In another embodiment, the main sampling tube 20 and the auxiliary sampling tube 10 can move relative to each other along the length direction of the main sampling tube 20. When the main sampling tube 20 and the auxiliary sampling tube 10 move relative to each other to a predetermined position, the main sampling port 21 is aligned with the auxiliary sampling port 11. Exemplarily, by adjusting the insertion depth of the main sampling tube 20 in the auxiliary sampling tube 10, the main sampling port 21 and the auxiliary sampling port 11 can be aligned or staggered to control the sampling process.

[0027] In another embodiment, on the basis that the main sampling tube 20 is rotatably inserted into the auxiliary sampling tube 10, the main sampling tube 20 and the auxiliary sampling tube 10 can move relative to each other along the length direction of the main sampling tube 20. When the main sampling tube 20 and the auxiliary sampling tube 10 move relative to each other to a predetermined position, the main sampling port 21 overlaps with the auxiliary sampling port 11 in the length direction. The main sampling port 21 and the auxiliary sampling port 11 are jointly controlled to align or stagger by the relative rotation and relative movement of the main sampling tube 20 and the auxiliary sampling tube 10.

[0028] In one or more embodiments, the number of auxiliary sampling ports 11 and main sampling ports 21 are both multiple, and the multiple auxiliary sampling ports 11 are spaced apart along the length direction of the auxiliary sampling tube 10, and the multiple main sampling ports 21 are spaced apart along the length direction of the main sampling tube 20. Samples of different depths can be obtained through the auxiliary sampling ports 11 and the main sampling ports 21 at different positions. When the tank body is deep, the sampling position can be accurately known through the position of the main sampling port 21, and samples from different positions can be accurately sampled, tested, and analyzed, which improves the reliability of the data and plays a decisive role in the normal operation, adsorption, and regeneration of the equipment.

[0029] Exemplarily, the main sampling tube 20 includes a plurality of sections (such as reference numerals 20a, 20b, and 20c) distributed along the length direction, each section is provided with a main sampling port 21, and the sections are not connected. In this way, when samples enter the sections from different main sampling ports 21, mixing between different samples is avoided, thereby ensuring the accuracy of subsequent measurements. Exemplarily, the number of sections of the auxiliary sampling port 11, the main sampling port 21, and the main sampling tube 20 are all three.

[0030] In one or more embodiments, a connector 12 is disposed at the head end of the auxiliary sampling tube 10. The connector 12 is in a pointed cone shape, which helps the auxiliary sampling tube 10 to penetrate deeper into the interior and reduce resistance, and secondly prevents the sampled sample from flowing into the tank.

[0031] In one or more embodiments, a welding handle 13 is provided at the tail end of the auxiliary sampling tube 10, and the welding handle 13 is used to connect the drying tower tank body to be sampled. The sampling personnel can stand on the welding handle 13 to facilitate the operation of the main sampling tube 20. Exemplarily, a rotating handle 22 is provided at the tail end of the main sampling tube 20, and the main sampling tube 20 can be rotated or moved by rotating the handle 22 to control the sampling process. It should be noted that the head end here refers to one end of the sampling tube extending into the drying tower tank body, and the tail end refers to the other end of the sampling tube outside the drying tower tank body.

[0032] The sampling process of the precise sampling device for the interior of the drying tower of the air compression system provided in this embodiment is as follows: first, insert the main sampling tube 20 into the interior of the auxiliary sampling tube 10 so that the two tubes form a whole. The sampling personnel go to the top of the drying tower, open the flange closure of the tank body, grab the welding handle 13 by hand, and place it on the upper end of the sampling position. Rotate the handle 180° counterclockwise by hand so that the main sampling port 21 and the auxiliary sampling port 11 are just in the opposite direction, slowly insert the main sampling tube 20 into the drying tower, check the main sampling tube 20 leakage distance, can judge the insertion depth, and can accurately reach the sampling position. When the main sampling tube 20 goes deep into the sampling position, rotate the handle 180° clockwise so that the main sampling port 21 and the auxiliary sampling port 11 are just in the same direction, and the sample enters the main sampling tube 20. When the sample is taken, rotate the handle 180° counterclockwise again, and the main sampling port 21 and the auxiliary sampling port 11 are closed. Through the three main sampling ports 21 and the auxiliary sampling ports 11, samples from different parts can be taken at one time, which improves work efficiency and enables accurate sampling. Take out the sampling tube from the tank body and pour the sample into the sample container.

[0033] The specific implementation methods of the present application are described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments can be modified and improved without departing from the principles and spirit of the present application whose scope is defined by the claims and their equivalents. These modifications and improvements should also be within the scope of protection of the present application.

Claims

1. A precise sampling device for the interior of a drying tower of an air compression system, characterized in that: The precise sampling device comprises: An auxiliary sampling tube, wherein the side wall of the auxiliary sampling tube is provided with an auxiliary sampling port; A main sampling tube, a main sampling port is provided on the side wall of the main sampling tube, the main sampling tube is movably inserted into the auxiliary sampling tube, and when the main sampling tube and the auxiliary sampling tube move relatively to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

2. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The main sampling tube is rotatably inserted into the auxiliary sampling tube. When the main sampling tube and the auxiliary sampling tube are relatively rotated to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

3. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1 or 2, characterized in that: The number of the auxiliary sampling ports and the number of the main sampling ports are both multiple, and the multiple auxiliary sampling ports are distributed at intervals along the length direction of the auxiliary sampling tube, and the multiple main sampling ports are distributed at intervals along the length direction of the main sampling tube.

4. The precise sampling device for the interior of the drying tower of the air compression system according to claim 3, characterized in that: The main sampling tube comprises a plurality of sections distributed along the length direction, each section is respectively provided with the main sampling port, and the sections are not connected to each other.

5. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The main sampling tube and the auxiliary sampling tube are relatively movable along the length direction of the main sampling tube. When the main sampling tube and the auxiliary sampling tube are relatively moved to a predetermined position, the main sampling port is aligned with the auxiliary sampling port.

6. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The main sampling tube and the auxiliary sampling tube are relatively movable along the length direction of the main sampling tube. When the main sampling tube and the auxiliary sampling tube are relatively moved to a predetermined position, the main sampling port and the auxiliary sampling port overlap in the length direction.

7. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The tail end of the auxiliary sampling tube is provided with a welding handle.

8. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The tail end of the main sampling tube is provided with a rotating handle.

9. The precise sampling device for the interior of the drying tower of the air compression system according to claim 1, characterized in that: The head end of the auxiliary sampling tube is provided with a connector, and the connector is in a pointed cone shape.

10. The precise sampling device for the interior of the drying tower of the air compression system according to claim 7, characterized in that: The welding handle is used to connect the drying tower tank body to be sampled.

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