Automatic sampling system
The automated sampling system, through automated control and sensor adjustment, solves the problems of complex operation and low safety of existing sampling systems, achieving the effects of simplified operation and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-24
AI Technical Summary
Existing sampling systems are complex to operate and have low safety, with manual valves prone to damage and leakage, posing serious safety hazards, especially when handling toxic substances.
Design an automatic sampling system that uses pressure sensors to control the opening and closing of valves, and combines vacuum lines and cleaning lines to achieve automated sampling. Temperature and pressure sensors are used to regulate the conveying and cooling of materials to enhance safety.
It simplifies the operation process, reduces the risk of material leakage, and improves the safety and reliability of the sampling system.
Smart Images
Figure CN224035026U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sampling system technical field, and specifically relates to an automatic sampling system. BACKGROUND
[0002] The design and implementation of a sampling system aims to extract a small amount of samples from a large amount of production materials, which can represent the quality and characteristics of the whole material, so as to realize the monitoring of the whole production process. In the chemical industry, the sampling system is used for quality control of raw materials, semi-finished products and finished products, and monitoring of material characteristics in the production process.
[0003] At present, the sampling system includes multiple pipelines and is correspondingly provided with multiple hand valves, and relevant personnel need to go to the sampling system site to operate to open and close the corresponding valves for sampling. In addition, the relevant personnel also need to judge the sampling end point and other parameters, which not only is complicated to operate, but also increases the risk of misoperation of the operator. Moreover, the damage rate and leakage rate of the hand valve are relatively high, and when the sampling material is a toxic substance, if the relevant personnel come into contact with such a substance, not only will it cause irreversible damage to the body, but also may cause death in severe cases.
[0004] Therefore, in view of the above technical problems, it is necessary to provide an automatic sampling system. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing an automatic sampling system, which can solve the problems of complex operation and low safety of the sampling system.
[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:
[0007] An automatic sampling system, comprising a conveying pipeline for conveying materials, a sampling pipeline connected to the conveying pipeline by a branch, and a sampling bottle detachably arranged at a discharge port of the sampling pipeline;
[0008] A pressure sensor is arranged on the conveying pipeline, and a first on-off valve is arranged on the sampling pipeline; when the first on-off valve is opened, the materials flow through the conveying pipeline and the sampling pipeline into the sampling bottle; and the first on-off valve is closed when the pressure value fed back by the pressure sensor reaches a preset pressure value.
[0009] In one or more embodiments of the utility model, the automatic sampling system further comprises a box body, the conveying pipeline, the sampling pipeline and the sampling bottle are all installed in the box body, the box body is communicated with a vacuum pipeline, and the vacuum pipeline is used to make the inside of the box body in a micro-negative pressure state.
[0010] In one or more embodiments of the utility model, the sampling pipeline is communicated with a venting pipeline, the communication position of the venting pipeline and the sampling pipeline is between the first switch valve and the sampling bottle, and the venting pipeline is provided with a second switch valve.
[0011] In one or more embodiments of the utility model, the automatic sampling system further comprises a cleaning pipeline connected to the venting pipeline, the cleaning pipeline can be communicated with external gas, and the cleaning pipeline is provided with a third switch valve.
[0012] In one or more embodiments of the utility model, the input end of the cleaning pipeline is further provided with a pressure regulating valve for adjusting the input pressure of the external gas.
[0013] In one or more embodiments of the utility model, the conveying pipeline is further provided with a cooler, and the cooler is located upstream of the communication position of the conveying pipeline and the sampling pipeline.
[0014] In one or more embodiments of the utility model, the cooler is communicated with a water inlet pipe and a water return pipe of cooling water, the water inlet pipe and / or the water return pipe is installed with a temperature regulating valve, the conveying pipeline is provided with a temperature sensor at the output end of the cooler, the temperature sensor is electrically connected with the temperature regulating valve, and the temperature regulating valve adjusts the opening degree according to the temperature value fed back by the temperature sensor.
[0015] In one or more embodiments of the utility model, the input end of the conveying pipeline is further provided with a pressure regulating valve electrically connected with the pressure sensor, and the pressure regulating valve adjusts the opening degree according to the pressure value fed back by the pressure sensor.
[0016] In one or more embodiments of the utility model, the conveying pipeline is further provided with a fourth switch valve for controlling the opening and closing of the conveying pipeline, and the fourth switch valve is located downstream of the communication position of the conveying pipeline and the sampling pipeline.
[0017] In one or more embodiments of the utility model, the sampling bottle is provided with a check valve.
[0018] Compared with the prior art, the automatic sampling system of the utility model firstly conveys the material through the conveying pipeline, so that the pressure value in the conveying pipeline is stable in a certain range. Then the first switch valve is opened, and the material flows into the sampling bottle through the sampling pipeline. After the first switch valve is opened, the pressure value in the conveying pipeline is low. During the sampling process, when the pressure value detected by the pressure sensor gradually recovers to the preset pressure value, the first switch valve is closed, and the sampling is completed. The relevant personnel can go to the scene to take out the sampling bottle and replace the new sampling bottle. Through the cooperation of the pressure sensor and the first switch valve, the operation steps can be simplified to complete the automatic sampling; at the same time, the automatic control of the first switch valve can reduce the leakage of the material, and the safety of the sampling system is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments in the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 It is the schematic diagram of the automatic sampling system in an embodiment of the utility model.
[0021] Main drawing mark explanation:
[0022] 1, conveying pipeline; 2, sampling pipeline; 3, sampling bottle; 4, pressure sensor; 5, first switch valve; 6, pressure regulating valve; 7, cooler; 8, water inlet pipe; 9, backwater pipe; 10, temperature regulating valve; 11, temperature sensor; 12, box; 13, vacuum pipeline; 14, vent pipeline; 15, second switch valve; 16, cleaning pipeline; 17, third switch valve; 18, pressure regulating valve; 19, fourth switch valve. DETAILED DESCRIPTION
[0023] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.
[0024] REFERENCE Figure 1The automatic sampling system in the embodiment of the utility model includes the conveying pipeline 1 for conveying material, the sampling pipeline 2 connected with the conveying pipeline 1, and the sampling bottle 3 detachably arranged at the discharge port of the sampling pipeline 2; the conveying pipeline 1 is provided with the pressure sensor 4, and the sampling pipeline 2 is provided with the first switch valve 5; when the first switch valve 5 is opened, the material flows through the conveying pipeline 1 and the sampling pipeline 2 and enters the sampling bottle 3; the first switch valve 5 is closed when the pressure value fed back by the pressure sensor 4 reaches the preset pressure value.
[0025] When sampling is needed, the first switch valve 5 is opened, so that the material enters the sampling bottle 3 through the sampling pipeline 2. After sampling is completed, the first switch valve 5 is closed and the sampling bottle 3 is replaced, so that the sampling work can be completed. Before sampling, the material is first updated to fresh material through the conveying pipeline 1. After the pressure in the conveying pipeline 1 is stable, the first switch valve 5 is opened. At this time, the detection value of the pressure sensor 4 will decrease, and at the same time, the material enters the sampling bottle 3. During the sampling process, the pressure value gradually recovers to the preset pressure value, and finally the first switch valve 5 is closed, so that the sampling work can be automatically completed. Further, the sampling bottle 3 is provided with a check valve to prevent backflow of the material, so that the safety of sampling can be ensured.
[0026] It should be noted that in the embodiment, the material is taken as a chemical gas material. The preset pressure value is the pressure value when the conveying pipeline stably conveys the material. Figure 1 The dotted line and the dotted line represent electrical connection, and the solid line represents the actual pipeline.
[0027] Referring to Figure 1 The input end of the conveying pipeline 1 is further provided with the pressure regulating valve 6 electrically connected with the pressure sensor 4, and the pressure regulating valve 6 adjusts the opening degree according to the pressure value fed back by the pressure sensor 4. Therefore, according to different initial materials and different requirements, the pressure regulating valve 6 can adjust the pressure of the material entering the conveying pipeline 1 through the pressure value fed back by the pressure sensor 4.
[0028] Referring to Figure 1 The conveying pipeline 1 is further provided with the cooler 7, and the cooler 7 is located upstream of the position where the conveying pipeline 1 and the sampling pipeline 2 communicate. The gas input through the conveying pipeline 1 can be cooled to room temperature after flowing through the cooler 7, so as to facilitate the subsequent sampling process.
[0029] Continuing to refer to Figure 1 The cooler 7 is communicated with the water inlet pipe 8 and the backwater pipe 9 through which cooling water flows, and the water inlet pipe 8 and / or the backwater pipe 9 is / are installed with the temperature regulating valve 10. The conveying pipeline 1 is provided with the temperature sensor 11 at the output end of the cooler 7, the temperature sensor 11 is electrically connected with the temperature regulating valve 10, and the temperature regulating valve 10 adjusts the opening degree according to the temperature value fed back by the temperature sensor 11.
[0030] When the temperature sensor 11 detects that the temperature of the material output through the cooler 7 is high, the temperature regulating valve 10 can be adjusted to increase its opening degree, so as to increase the cooling degree. Conversely, when the temperature sensor 11 detects that the temperature of the material output through the cooler 7 is low, the temperature regulating valve 10 can be adjusted to decrease its opening degree. Therefore, the cooling effect of the material can be effectively controlled through the temperature sensor 11 and the temperature regulating valve 10.
[0031] With reference to Figure 1 The automatic sampling system in the embodiment further comprises a box 12, the conveying pipeline 1, the sampling pipeline 2 and the sampling bottle 3 are all installed in the box 12, and the box 12 is connected with a vacuum pipeline 13, which is used to make the inside of the box 12 in a micro-negative pressure state. Therefore, by making the inside of the box 12 in a micro-negative pressure state, the leakage of the material can be reduced, so as to protect the life safety of the relevant staff.
[0032] With reference to Figure 1 The sampling pipeline 2 is connected with a venting pipeline 14, the connection position of the venting pipeline 14 and the sampling pipeline 2 is located between the first switch valve 5 and the sampling bottle 3, and the venting pipeline 14 is provided with a second switch valve 15. When the sampling is completed, the first switch valve 5 on the sampling pipeline 2 is closed, and the material may still be left in the downstream pipeline of the first switch valve 5. At this time, the second switch valve 15 is controlled to be opened, so that the material can leave the automatic sampling system from the sampling pipeline 2 through the venting pipeline 14.
[0033] With reference to Figure 1 The automatic sampling system in the embodiment further comprises a cleaning pipeline 16 connected to the venting pipeline 14 in a branch manner, the cleaning pipeline 16 can be connected with external gas, and the cleaning pipeline 16 is provided with a third switch valve 17. The external gas can be set as helium. After the sampling is completed, the first switch valve 5 is closed. When the third switch valve 17 is opened, the gas can enter into the sampling pipeline 2 and the venting pipeline 14 to clean the residual material.
[0034] With reference to Figure 1 The input end of the cleaning pipeline 16 is further provided with a pressure regulating valve 18 used to adjust the input pressure of the external gas. Since the initial gas pressure of the external gas is relatively large, the size of the gas input pressure can be controlled through the pressure regulating valve 18.
[0035] With reference to Figure 1 The conveying pipeline 1 is further provided with a fourth switch valve 19 used to control the opening and closing of the conveying pipeline 1, and the fourth switch valve 19 is located downstream of the connection position of the conveying pipeline 1 and the sampling pipeline 2. When the pressure regulating valve 6 and the fourth switch valve 19 are opened, the gas flow can normally circulate in the conveying pipeline 1. When the first switch valve 5 is opened and the fourth switch valve 19 is closed, the gas can quickly enter into the sampling bottle 3.
[0036] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No limitation is intended to the scope of the claims with regard to which of the described features in a claim are to be every present in one claim and which one are to be present in more than one claim in combination.
[0037] Furthermore, it should be understood that although the description is made on embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, the skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments which can be understood by the skilled in the art.
Claims
1. An automatic sampling system, characterized in that, It includes a conveying pipeline (1) for conveying materials, a sampling pipeline (2) with a branch connected to the conveying pipeline (1), and a sampling bottle (3) detachably disposed at the outlet of the sampling pipeline (2); A pressure sensor (4) is installed on the conveying pipeline (1), and a first switching valve (5) is installed on the sampling pipeline (2). When the first switching valve (5) is opened, the material flows through the conveying pipeline (1) and the sampling pipeline (2) into the sampling bottle (3). The first switching valve (5) closes when the pressure value fed back by the pressure sensor (4) reaches the preset pressure value.
2. The automatic sampling system according to claim 1, characterized in that, It also includes a housing (12), in which the delivery line (1), sampling line (2) and sampling bottle (3) are installed. The housing (12) is connected to a vacuum line (13), which is used to keep the inside of the housing (12) under a slight negative pressure.
3. The automatic sampling system according to claim 1, characterized in that, The sampling line (2) is connected to a venting line (14). The venting line (14) and the sampling line (2) are connected at a position between the first switch valve (5) and the sampling bottle (3). A second switch valve (15) is provided on the venting line (14).
4. The automatic sampling system according to claim 3, characterized in that, It also includes a cleaning line (16) that is branched to the vent line (14), the cleaning line (16) can be vented to external gas, and a third switch valve (17) is provided on the cleaning line (16).
5. The automatic sampling system according to claim 4, characterized in that, The inlet of the cleaning line (16) is also equipped with a pressure regulating valve (18) for adjusting the input pressure of the external gas.
6. The automatic sampling system according to claim 1, characterized in that, A cooler (7) is also provided on the delivery pipeline (1), and the cooler (7) is located upstream of the connection point between the delivery pipeline (1) and the sampling pipeline (2).
7. The automatic sampling system according to claim 6, characterized in that, The cooler (7) is connected to an inlet pipe (8) and a return pipe (9) for cooling water. A temperature regulating valve (10) is installed on the inlet pipe (8) and / or the return pipe (9). A temperature sensor (11) is installed at the output end of the cooler (7) on the delivery pipeline (1). The temperature sensor (11) is electrically connected to the temperature regulating valve (10). The temperature regulating valve (10) adjusts its opening degree according to the temperature value fed back by the temperature sensor (11).
8. The automatic sampling system according to claim 1, characterized in that, The input end of the delivery pipeline (1) is also provided with a pressure regulating valve (6) electrically connected to the pressure sensor (4), and the pressure regulating valve (6) adjusts its opening degree according to the pressure value fed back by the pressure sensor (4).
9. The automatic sampling system according to claim 1, characterized in that, The delivery pipeline (1) is also provided with a fourth switch valve (19) for controlling its opening and closing. The fourth switch valve (19) is located downstream of the connection point between the delivery pipeline (1) and the sampling pipeline (2).
10. The automatic sampling system according to claim 1, characterized in that, The sampling bottle (3) is equipped with a check valve.