A sampling aid and a sampling device

Abstract

The sampling auxiliary device disclosed by the application comprises a water collecting tank, a vacuum pumping mechanism and a sampling pipe, the vacuum pumping mechanism is connected with the water collecting tank; one end of the sampling pipe is connected with the water collecting tank, and the other end is used for connecting a sampling pipe of a coagulation sedimentation tank. The sampling auxiliary device disclosed by the application has the advantages that the sampling pipe is connected with the sampling pipe, then the water collecting tank and the sampling pipe are pumped by the vacuum pumping mechanism, the sampling pipe is re-established siphon, the sampling operation can be continued, the condition that the siphon is interrupted due to partial emptying of the existing sampling pipe can be improved, the normal sampling is maintained; the water collecting tank can temporarily store the sample water with more impurities in the initial sampling stage, reduces the risk that the sample water enters the monitoring instrument, and can prolong the service life of the monitoring instrument; the scheme can avoid the risk of structural damage of the water outlet channel, water leakage at the opening and damage of the anticorrosion layer caused by the opening at the bottom of the water outlet channel in the traditional scheme, and ensure the structural stability of the water outlet channel.

Description

Technical Field

[0001] This application relates to the field of sampling technology, and more specifically, to a sampling auxiliary device and a sampling device. Background Technology

[0002] The coagulation sedimentation tank is the first treatment stage in a desalination system, and the quality of its effluent directly determines the quality of the final product water. Therefore, there are requirements for monitoring the turbidity and residual chlorine parameters of the effluent from the coagulation sedimentation tank. Continuous sampling of the product water is performed using online instruments to monitor its effluent indicators in real time.

[0003] like Figure 1 As shown, sampling tube 200 takes samples from the upper part of the effluent channel 300 of the coagulation sedimentation tank 100. When the liquid level in the effluent channel 300 is low, sampling tube 200 will be partially emptied. After the effluent channel 300 is filled with water again, sampling tube 200 will not be full. Specifically, as shown... Figure 2 As shown, normal sampling is not possible. Sampling in the lower middle part of the outlet channel 300 can ensure that the sampling tube 200 is full of water, but this method requires drilling holes in the outlet channel 300 and re-laying pipes. There is a risk that drilling holes in the outlet channel 300 will cause structural damage, water leakage at the drilling point, and damage to the anti-corrosion layer.

[0004] Therefore, how to improve the situation of siphon interruption caused by emptying of the sampling tube has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a sampling auxiliary device to improve the situation of siphon interruption caused by emptying of the sampling tube.

[0006] Another key aspect of this application is to provide a sampling device that includes the aforementioned sampling auxiliary device.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A sampling auxiliary device, comprising:

[0009] Water collection tank;

[0010] A vacuuming mechanism, which is connected to the water collection tank;

[0011] A sampling tube, one end of which is connected to the water collection tank, and the other end of which is used to connect to the sampling tube of the coagulation sedimentation tank.

[0012] Optionally, in the above-mentioned sampling auxiliary device, the vacuuming mechanism includes a vacuum pump, a vacuum pipe, and a vacuum check valve. The vacuum pump is connected to the water collection tank through the vacuum pipe, and the vacuum check valve is located on the vacuum pipe.

[0013] Optionally, in the above-mentioned sampling auxiliary device, the air extraction pipe is connected to the top or side of the water collection tank.

[0014] Optionally, in the above-mentioned sampling auxiliary device, the sampling tube and the sampling tube are detachably connected.

[0015] Optionally, in the above-mentioned sampling auxiliary device, the sampling tube is connected to the sampling tube by thread, snap-fit, clamp, or quick connector.

[0016] Optionally, in the above-mentioned sampling auxiliary device, the water collection tank is provided with a sampling port, and the sampling tube is threaded, snap-fitted, or adhesively connected to the sampling port.

[0017] Optionally, in the above-mentioned sampling auxiliary device, the sampling tube is connected to the top, side or bottom of the water collection tank.

[0018] Optionally, in the above-mentioned sampling auxiliary device, the water collection tank is made of a transparent material.

[0019] Optionally, in the above-mentioned sampling auxiliary device, the water collection tank is provided with a handle.

[0020] A sampling device includes a coagulation sedimentation tank, an effluent channel, a sampling tube, a monitoring instrument, and the aforementioned sampling auxiliary device. The effluent channel is connected to the coagulation sedimentation tank, one end of the sampling tube is connected to the effluent channel, and the other end can be detachably connected to the monitoring instrument or the sampling auxiliary device.

[0021] As can be seen from the above scheme, the sampling auxiliary device disclosed in this application has a simple structure. It connects the sampling tube to the sampling tube, and then uses a vacuuming mechanism to evacuate the water collection tank and the sampling tube, so that the sampling tube can rebuild the siphon and continue the sampling operation. It can improve the situation where the siphon is interrupted due to partial evacuation of the existing sampling tube and maintain the normal sampling process. The water collection tank can temporarily store the sample water with more impurities in the early stage of sampling, reduce the risk of this part of the sample water entering the monitoring instrument, and extend the service life of the monitoring instrument. This scheme can avoid the structural damage to the water outlet channel, water leakage at the opening, and damage to the anti-corrosion layer caused by opening the bottom of the water outlet channel in the traditional scheme, and ensure the structural stability of the water outlet channel.

[0022] The sampling device disclosed in this application has the same technical effect as the sampling auxiliary device, and will not be described in detail here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Schematic diagram of the structure of existing sampling devices Figure 1 ;

[0025] Figure 2 Schematic diagram of the structure of existing sampling devices Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the sampling device disclosed in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram of the sampling auxiliary device disclosed in the embodiments of this application.

[0028] Among them, 10 is the water collection tank and 11 is the handle;

[0029] 20 is the vacuuming mechanism, 21 is the air pump, 22 is the air extraction pipe, and 23 is the air extraction check valve.

[0030] 30 is the sample inlet tube;

[0031] 100 is the coagulation sedimentation tank, 200 is the sampling tube, 300 is the effluent channel, and 400 is the monitoring instrument. Detailed Implementation

[0032] The core of this application is to disclose a sampling auxiliary device to improve the situation where the siphon is interrupted due to the emptying of the sampling tube.

[0033] Another key aspect of this application is to provide a sampling device that includes the aforementioned sampling auxiliary device.

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] like Figure 1As shown, the sampling device includes a sedimentation tank 100, an effluent channel 300, a sampling tube 200, and a monitoring instrument 400. The effluent channel 300 is located at the end of the sedimentation tank 100 and is used to collect, summarize, and guide the treated supernatant to the next processing step. The first end of the sampling tube 200 is connected to the effluent channel 300, and the monitoring instrument 400 is connected to the second end of the sampling tube 200. The sampling tube 200 is preferably an inverted U-shaped tube. Figure 2 As shown, when the liquid level in the outlet channel 300 is low, the sampling tube 200 will be partially emptied. After the outlet channel 300 is filled with water again, the sampling tube 200 is not full and cannot take samples normally. The sampling auxiliary device disclosed in this application is used to improve the situation of siphon interruption caused by the emptying of the sampling tube 200.

[0036] like Figure 4 As shown in the figure, this application discloses a sampling device, including a water collection tank 10, a vacuum mechanism 20 and a sampling tube 30. One end of the sampling tube 30 is connected to the water collection tank 10, and the other end is used to connect to the sampling tube 200 of the coagulation sedimentation tank 100. The vacuum mechanism 20 is connected to the water collection tank 10 and is used to evacuate the water collection tank 10 and the sampling tube 200.

[0037] In actual use, after the sampling tube 200 is emptied, the monitoring instrument 400 is disassembled, the lead tube 30 is connected to the sampling tube 200, and then the vacuum mechanism 20 is used to evacuate the water collection tank 10 and the sampling tube 200. After the sampling tube 200 is evacuated, there is a negative pressure in the sampling tube 200, the siphon is rebuilt, and the sample water in the outlet channel 300 can enter the sampling tube 200. The initial sample water containing more impurities can be temporarily stored in the water collection tank 10. Then the sampling tube 200 is reconnected to the monitoring instrument 400 to monitor the sample water.

[0038] The sampling auxiliary device disclosed in this application has a simple structure. It connects the sampling tube 30 to the sampling tube 200, and then uses the vacuum mechanism 20 to evacuate the water collection tank 10 and the sampling tube 200, so that the sampling tube 200 can rebuild the siphon and continue the sampling operation. It can improve the situation where the siphon is interrupted due to partial emptying of the sampling tube 200, and maintain the normal sampling process. The water collection tank 10 can temporarily store the sample water with more impurities in the early stage of sampling, reduce the risk of this part of the sample water entering the monitoring instrument 400, and extend the service life of the monitoring instrument 400. This solution can avoid the structural damage, water leakage at the opening and damage to the anti-corrosion layer of the water outlet channel 300 caused by the opening at the bottom of the water outlet channel 300 in the traditional solution, and ensure the structural stability of the water outlet channel 300.

[0039] Furthermore, such as Figure 4As shown, the vacuuming mechanism 20 specifically includes a vacuum pump 21, a vacuum pipe 22, and a vacuum check valve 23. The vacuum pump 21 is connected to the water collection tank 10 through the vacuum pipe 22. The vacuum check valve 23 is installed on the vacuum pipe 22 to prevent air from flowing back into the water collection tank 10 and the sampling tube 200 after the vacuum pump 21 is de-energized. When the sampling tube 200 is partially emptied, the vacuum pump 21 can be turned on to vacuum the water collection tank 10 and the sampling tube 200, making the operation convenient.

[0040] Furthermore, the suction pipe 22 is connected to the top or side of the water collection tank 10; that is, the suction pipe 22 can be located at the top or side of the water collection tank 10. Specifically, the water collection tank 10 is provided with a suction port, and the suction pipe 22 is connected to the suction port, which can be via a threaded connection or a snap-fit ​​connection. The sample inlet pipe 30 is connected to the top, side, or bottom of the water collection tank 10, for example, as shown in... Figure 4 As shown, both the suction pipe 22 and the sample inlet pipe 30 are connected to the top of the water collection tank 10, and the sample inlet pipe 30 is preferably a flexible tube.

[0041] To facilitate the connection between the sampling tube 30 and the sampling tube 200, the sampling tube 30 and the sampling tube 200 can be detachably connected. Specifically, they can be connected by threads, snaps, clamps, or quick connectors. The quick connector is preferably installed on the sampling tube 30. The specific connection method can be determined according to the actual situation.

[0042] Furthermore, the water collection tank 10 is provided with a sampling port, and the sampling tube 30 is connected to the sampling port by thread, snap-fit ​​or adhesive. The specific connection method is not specifically limited and can be determined according to actual needs.

[0043] In some specific embodiments, to facilitate observation of the interior of the water collection tank 10, the water collection tank 10 is preferably made of a transparent material, specifically plastic or glass. The water collection tank 10 is a closed structure, which may include a water collection tank body and a cover plate disposed on the water collection tank body. The cover plate is used to seal the water collection tank body and is provided with a sealing ring. The cover plate and the water collection tank body can be connected by snap-fit ​​or by nested pressing connection. For example, the cover plate is provided with a pressure frame, and the water collection tank body is provided with a snap-fit ​​groove that cooperates with the pressure frame. The pressure frame and the snap-fit ​​groove are interference fit. The cross-sectional shape of the water collection tank 10 includes, but is not limited to, rectangle, square, circle, and ellipse.

[0044] like Figure 4 As shown, in some specific embodiments, the water collection tank 10 is provided with a handle 11 for easy installation and handling. Specifically, the shape of the handle 11 includes, but is not limited to, L-shaped, inverted U-shaped, and arc-shaped.

[0045] In addition, such as Figure 3As shown in the illustration, this application also discloses a sampling device, including a coagulation sedimentation tank 100, an effluent channel 300, a sampling tube 200, a monitoring instrument 400, and a sampling auxiliary device as described in the above embodiment. The effluent channel 300 is connected to the coagulation sedimentation tank 100, and one end of the sampling tube 200 is connected to the effluent channel 300, while the other end can be detachably connected to the monitoring instrument 400 or the sampling auxiliary device. When the sampling tube 200 is partially emptied, the monitoring instrument 400 is disassembled, and then the lead-in tube 30 is connected to the sampling tube 200. A vacuum is created in the collection tank 10 and the sampling tube 200 using a vacuuming mechanism 20, forming a negative pressure within the sampling tube 200 and re-establishing the siphon. Subsequently, the sampling auxiliary device is disassembled, and the sampling tube 200 is connected to the monitoring instrument 400. The monitoring instrument 400 monitors the turbidity and residual chlorine parameters of the effluent from the coagulation sedimentation tank 100.

[0046] It should be noted that the various embodiments in this specification mainly describe the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0047] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0048] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0049] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A sampling auxiliary device, characterized in that, include: Water collection tank (10); A vacuum pumping mechanism (20) is connected to the water collection tank (10); The sampling tube (30) is connected at one end to the water collection tank (10) and at the other end to the sampling tube (200) of the coagulation sedimentation tank (100).

2. The sampling auxiliary device as described in claim 1, characterized in that, The vacuum mechanism (20) includes a vacuum pump (21), a vacuum pipe (22) and a vacuum check valve (23). The vacuum pump (21) is connected to the water collection tank (10) through the vacuum pipe (22), and the vacuum check valve (23) is located on the vacuum pipe (22).

3. The sampling auxiliary device as described in claim 2, characterized in that, The air extraction pipe (22) is connected to the top or side of the water collection tank (10).

4. The sampling auxiliary device as described in claim 1, characterized in that, The sampling tube (30) is detachably connected to the sampling tube (200).

5. The sampling auxiliary device as described in claim 4, characterized in that, The sampling tube (30) is connected to the sampling tube (200) by thread, snap-fit, clamp, or quick connector.

6. The sampling auxiliary device as described in claim 1, characterized in that, The water collection tank (10) is provided with a sampling port, and the sampling tube (30) is threaded, snap-fitted or adhesively connected to the sampling port.

7. The sampling auxiliary device as described in claim 1, characterized in that, The sample tube (30) is connected to the top, side or bottom of the water collection tank (10).

8. The sampling auxiliary device as described in claim 1, characterized in that, The water collection tank (10) is made of transparent material.

9. The sampling auxiliary device as described in claim 1, characterized in that, The water collection tank (10) is equipped with a handle (11).

10. A sampling device, characterized in that, The device includes a coagulation sedimentation tank (100), an effluent channel (300), a sampling tube (200), a monitoring instrument (400), and a sampling auxiliary device as described in any one of claims 1-9. The effluent channel (300) is connected to the coagulation sedimentation tank (100), one end of the sampling tube (200) is connected to the effluent channel (300), and the other end is detachably connected to the monitoring instrument (400) or the sampling auxiliary device.

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