Ammonia water sampling device

Abstract

The utility model provides a kind of ammonia sampling device, including sampling cylinder, piston is arranged in sampling cylinder, the back of piston is provided with push-pull rod, the end of sampling cylinder is detachably provided with puncture needle tube, sampling cylinder is provided with the sampling tube being communicated with it on side wall, the end of sampling tube is connected with detection container, the utility model can be held by operator sampling cylinder, the puncture needle tube installed at its end is inserted into the piston of ammonia storage tank, then push-pull rod is pulled outwards, and the piston is moved outwards at the same time, while realizing that ammonia in ammonia storage tank is drawn into sampling tube, it can be realized that ammonia is smoothly drawn into detection container without taking out puncture needle tube, and then unnecessary evaporation of ammonia and sealing failure of sealing plug caused by repeatedly inserting puncture needle tube into ammonia storage bottle can be avoided when sampling ammonia of different depths.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, specifically to an ammonia water sampling device. Background Technology

[0002] In the process of ammonia preparation, sampling is often required to ensure product quality and the effectiveness of process control. During the production, storage and quality testing of ammonia, samples of ammonia at different depths need to be taken for testing.

[0003] Traditional sampling methods involve repeatedly inserting and withdrawing a needle into an ammonia storage container, which has significant drawbacks: repeated insertion and withdrawal can cause unnecessary evaporation of ammonia, affecting the accuracy of the test and wasting raw materials. At the same time, repeated operations can cause the sealing plug of the storage container to fail, allowing outside air to enter and contaminate the ammonia, and may also cause safety hazards (such as ammonia leakage). Utility Model Content

[0004] In view of this, the present invention provides an ammonia sampling device that can achieve ammonia sampling at different depths without repeated insertion and withdrawal of the needle, thus avoiding ammonia evaporation and seal failure, while improving the convenience and safety of the sampling operation.

[0005] To solve the above-mentioned technical problems, this utility model provides an ammonia sampling device, including a sampling cylinder, a piston inside the sampling cylinder, a push-pull rod on the back of the piston, a detachable insertion needle at the end of the sampling cylinder, and a sampling tube connected to the side wall of the sampling cylinder. The end of the sampling tube is connected to a detection container. This utility model allows the operator to hold the sampling cylinder, insert the insertion needle at its end into the piston of the ammonia storage tank, and then pull the push-pull rod outward to move the piston outward, thereby drawing ammonia from the ammonia storage tank into the sampling tube. This allows ammonia to be successfully drawn into the detection container without removing the insertion needle, thus avoiding the unnecessary evaporation of ammonia and the failure of the sealing plug caused by repeatedly inserting and removing the insertion needle when sampling ammonia at different depths.

[0006] The angle between the sampling tube and the sampling cylinder is between 15° and 60°. This is to facilitate the smooth extraction of ammonia water from the sampling cylinder into the detection container and to avoid unnecessary dripping of the solution after extraction.

[0007] The push-pull rod is equipped with a non-slip handle on the back. This utility model can increase the stability of the operator's grip through the non-slip handle, making operation more convenient.

[0008] The back of the piercing needle is provided with a threaded sealing sleeve, and the end of the sampling tube is provided with a threaded connecting tube that is compatible with the threaded sealing sleeve. The threaded connecting tube is connected to the sampling tube, and the threaded sealing sleeve is threadedly connected to the outside of the threaded connecting tube. This utility model can achieve a quick and efficient detachable connection between the piercing needle and the sampling tube by using the threaded sealing connecting sleeve in conjunction with the threaded connecting tube, which greatly improves the efficiency of disassembly and assembly of the sampling device and facilitates its storage, management and transportation.

[0009] The non-slip handle has anti-slip protrusions, which can increase friction and improve grip stability.

[0010] The sampling tube is equipped with a bamboo-shaped quick connector at the end, which facilitates the quick connection of the liquid collection tube to the sampling container and the sampling tube.

[0011] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Avoid ammonia evaporation and seal failure: This invention eliminates the need for repeated insertion and withdrawal of the needle, allowing for sampling with a single puncture. This effectively reduces the chance of ammonia coming into contact with air, preventing evaporation loss, while protecting the storage tank's sealing plug and preventing problems such as pollution and leakage caused by seal failure, thus ensuring testing accuracy and production safety.

[0012] 2. Improved connection and operation convenience: This utility model allows for detachable connection between the insertion needle tube and the sampling tube via a threaded sealing sleeve and a threaded connecting tube, enabling quick and efficient assembly and disassembly, and facilitating storage, transportation, and maintenance; the bamboo-shaped quick connector at the end of the sampling tube enables rapid connection with the liquid collection tubing of the testing container, simplifying the operation process and improving sampling efficiency.

[0013] 3. Enhanced gripping stability: This utility model increases the friction between the hand and the handle by setting an anti-slip handle and anti-slip protrusions on the back of the push-pull rod, making the operator's grip more stable. Especially in wet and slippery environments or continuous sampling operations, it reduces the risk of operational errors and improves the stability and accuracy of the sampling process.

[0014] 4. Optimized sampling process and versatility: This utility model can ensure smooth flow of ammonia water through the design of the sampling tube angle, and is suitable for different testing container connection requirements; the materials and specifications of each component are adapted to ammonia water sampling scenarios, with strong versatility, and can be applied in multiple scenarios such as chemical industry and laboratory. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the ammonia sampling device of this utility model; Figure 2 This is a side view of the ammonia sampling device of this utility model; Figure 3 This utility model Figure 2 Sectional view at point AA.

[0016] Explanation of reference numerals in the attached drawings: 100, sampling tube; 101, threaded connecting tube; 200, piston; 300, push-pull rod; 400, needle tube; 401, threaded sealing sleeve; 500, sampling tube; 501, bamboo-shaped quick connector; 600, non-slip handle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] like Figure 1-3 As shown: This embodiment provides an ammonia sampling device, including a sampling cylinder 100, a piston 200 inside the sampling cylinder 100, a push-pull rod 300 on the back of the piston 200, and a detachable piercing needle 400 at the end of the sampling cylinder 100. The piercing needle 400 is made of 304 stainless steel, model ZG-20, and has a sharp end for easy piercing. A sampling tube 500 is provided on the side wall of the sampling cylinder 100 and communicates with it. The end of the sampling tube 500 is connected to a detection container. The sampling cylinder 100 is made of transparent polypropylene (PP), model QY-50, to facilitate observation of the internal sampling situation. The outer diameter of the cylinder is 30mm and the length is 150mm. A piston 200 is slidably installed inside the sampling cylinder 100. The piston 200 is made of nitrile rubber, which has good sealing performance. A push-pull rod 300 is fixedly connected to the back of the piston 200. The push-pull rod 300 is made of stainless steel and has a diameter of 5mm. In this invention, the operator can hold the sampling cylinder 100 and insert the piercing needle 400 installed at its end into the piston 200 of the ammonia storage tank. Then, by pulling the push-pull rod 300 outward, the piston 200 is moved outward, thereby drawing ammonia water from the ammonia storage tank into the sampling tube 500. This allows ammonia water to be smoothly drawn into the detection container without removing the piercing needle 400. This avoids the unnecessary evaporation of ammonia water and the sealing failure of the sealing plug caused by repeatedly inserting and removing the piercing needle 400 into the ammonia storage bottle when sampling ammonia water at different depths.

[0019] According to one embodiment of the present invention, such as Figure 1-3As shown, the angle between the sampling tube 500 and the sampling cylinder 100 is between 15° and 60°. The sampling tube 500 is made of medical-grade silicone tubing, model SG-8, which has good flexibility and corrosion resistance. The sampling tube 500 is connected to the side wall of the sampling cylinder 100, and the angle between them is 30° (which can be adjusted between 15° and 60°, this is the preferred angle). The end of the sampling tube 500 is equipped with a bamboo-joint type quick connector 501, model KJ-3, for quick connection to the liquid extraction hose of the detection container. The purpose of this is to facilitate the sampling tube 500 to smoothly extract the ammonia water in the sampling cylinder 100 into the detection container, and to avoid unnecessary dripping of the solution after extraction.

[0020] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the push-pull rod 300 is provided with an anti-slip handle 600 on its back. The anti-slip handle 600 is made of ABS plastic and has anti-slip protrusions on its surface. The protrusions are hemispherical with a diameter of 2mm, which increases grip stability. This utility model can increase the operator's grip stability through the anti-slip handle 600, making operation more convenient.

[0021] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, a threaded sealing sleeve 401 is provided on the back of the insertion needle tube 400. The threaded sealing sleeve 401 is made of polytetrafluoroethylene. A threaded connecting sleeve 101 adapted to the threaded sealing sleeve 401 is provided at the end of the sampling cylinder 100. The threaded connecting sleeve 101 is connected to the sampling cylinder 100. The threaded sealing sleeve 401 is threadedly connected to the outside of the threaded connecting sleeve 101. The threaded connecting sleeve 101 and the sampling cylinder 100 are integrally formed. The threaded sealing sleeve 401 is threadedly connected to the outside of the threaded connecting sleeve 101 to achieve a quick and detachable connection. This utility model can achieve a quick and efficient detachable connection between the insertion needle tube 400 and the sampling cylinder 100 by using the threaded sealing connecting sleeve in conjunction with the threaded connecting sleeve 101. This greatly improves the efficiency of disassembly and assembly of the sampling device and facilitates its storage management and transportation.

[0022] The anti-slip handle 600 is equipped with anti-slip protrusions, which can increase friction and improve grip stability.

[0023] The end of the sampling tube 500 is provided with a bamboo-shaped quick connector 501, which is intended to facilitate the quick connection of the liquid collection hose to the sampling container and the sampling tube.

[0024] How to use this utility model: First, it needs to be clarified that the ammonia sampler involved in this utility model is mainly used for sampling ammonia water at different depths in ammonia water storage bottles with sealed plugs. This utility model uses the working principle and usage method of the sampling device in the ammonia water sampling process as an example to explain its usage method in detail. When it is necessary to sample ammonia water, the working principle and usage method are as follows: Working principle: Negative pressure generation: When the operator grips the anti-slip handle 600 and pulls the push-pull rod 300 outward, the push-pull rod 300 drives the piston 200 to move outward synchronously within the sampling cylinder 100. Due to the tight fit between the piston 200 and the inner wall of the sampling cylinder 100 (the sealing effect of the nitrile rubber piston 200), the internal space of the sampling cylinder 100 increases due to the outward movement of the piston 200, thereby creating a negative pressure environment.

[0025] Ammonia extraction: Under the pressure difference between the external atmospheric pressure and the negative pressure inside the sampling cylinder 100, the ammonia in the ammonia storage tank will be drawn into the sampling cylinder 100 along the insertion needle 400. At this time, the insertion needle 400 serves as the channel for ammonia to enter the sampling cylinder 100. Since it only needs to be inserted into the storage tank once (subsequent sampling does not require repeated insertion and removal), it can effectively reduce the evaporation of ammonia from contact with air, while protecting the storage tank's sealing plug from damage caused by repeated insertion and removal.

[0026] Ammonia flow guidance: The ammonia entering the sampling cylinder 100 will flow along the sampling tube 500 to the testing container. The sampling tube 500 is designed with a 30° angle (adjustable within the range of 15° - 60°) between it and the sampling cylinder 100. By utilizing gravity and liquid flow, it ensures that the ammonia flows smoothly from the sampling cylinder 100 into the testing container, avoiding ammonia dripping and wasting in the sampling tube 500, and ensuring accurate sampling.

[0027] How to use: Assembly stage: Component connection: Align the threaded sealing sleeve 401 of the needle tube 400 with the threaded connecting sleeve 101 at the end of the sampling tube 100, and slowly rotate the threaded sealing sleeve 401 until it is tightened to complete the detachable connection between the needle tube 400 and the sampling tube 100; then, put the liquid sampling tube port of the test container into the bamboo-shaped quick connector 501 at the end of the sampling tube 500, and use the elastic locking structure of the quick connector to achieve a quick and stable connection to prepare for sampling.

[0028] Inspection and debugging: After assembly, check whether the threaded connection between the needle tube 400 and the sampling cylinder 100 is secure (you can test by slightly shaking the needle tube 400), and whether the connection between the sampling tube 500 and the quick connector is tight (pull the sampling tube 500 lightly to check if it falls off). At the same time, observe whether the piston 200 slides smoothly in the sampling cylinder 100 (test by pushing and pulling the push-pull rod 300) to ensure that all parts are not loose or blocked and that the sealing performance is good.

[0029] Sampling procedure: Insertion into the container: The operator cleans their hands (to avoid sample contamination), grasps the non-slip handle 600 on the back of the push-pull lever 300 (using the non-slip protrusions to enhance grip stability), and slowly and vertically inserts the insertion needle 400 into the sealing plug of the ammonia storage tank. During the puncture, control the force and speed, and push the insertion needle 400 to the corresponding position according to the required sampling depth (such as testing the mass of ammonia in different layers). If only a single sample is required, puncture to the appropriate depth.

[0030] Extracting ammonia: Maintain a stable grip on the non-slip handle 600 and slowly pull the push-pull rod 300 outwards. During this time, observe the rise of the ammonia level inside the transparent sampling tube 100. When the level rises to the mark corresponding to the required sample volume (mark the mark on the outer wall of the sampling tube 100 beforehand for easier observation), stop pulling the push-pull rod 300 to complete the ammonia extraction.

[0031] Drainage detection: Ammonia water will flow into the detection container through the sampling tube 500 under the action of pressure difference and gravity. If it is necessary to sample ammonia water at different depths in the same storage tank again, there is no need to remove the piercing needle 400. Simply push the push-pull rod 300 back to its original position (ammonia water has been collected in the sampling tube 100), and pull the push-pull rod 300 again to extract a new ammonia water sample at the corresponding depth. If all sampling is completed, the detection operation can be carried out directly after the detection container has collected all the ammonia water.

[0032] Final cleaning steps: Component disassembly: After sampling, first remove the liquid collection tubing from the side of the test container (gently pull it out from the bamboo-shaped quick connector 501), then rotate it in the opposite direction to insert the threaded sealing sleeve 401 of the needle tube 400, and unscrew it from the threaded connecting sleeve 101 of the sampling tube 100 to complete the disassembly of each component.

[0033] Cleaning and Storage: Rinse the sampling cylinder 100, insertion needle 400, and sampling tube 500 with purified water (during rinsing, push and pull the push-pull rod 300 to make the piston 200 reciprocate, assisting in cleaning the inner wall of the sampling cylinder 100; for the inside of the insertion needle 400, a syringe can be used for rinsing). After rinsing, allow it to air dry naturally. Store the dried parts according to their specifications (e.g., in a dedicated toolbox) for easy access next time, keeping the equipment clean and free of residue, and preventing ammonia from corroding the parts or affecting the accuracy of the next sampling.

[0034] This invention enables ammonia sampling at different depths without repeated insertion and extraction of the needle (400mm). Sampling can be completed with a single puncture, effectively reducing the chance of ammonia contacting air and avoiding evaporation loss. At the same time, it protects the storage tank's sealing plug, preventing pollution and leakage caused by seal failure, and ensuring the accuracy of testing and production safety.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An ammonia sampling device, comprising a sampling cylinder (100), characterized in that: A piston (200) is provided inside the sampling cylinder (100), and a push-pull rod (300) is provided on the back of the piston (200). An insertion needle tube (400) is detachably provided at the end of the sampling cylinder (100). A sampling tube (500) is provided on the side wall of the sampling cylinder (100) and communicates with it. The end of the sampling tube (500) is connected to the detection container.

2. The ammonia sampling device as described in claim 1, characterized in that: The angle between the sampling tube (500) and the sampling cylinder (100) is between 15° and 60°.

3. The ammonia sampling device as described in claim 1, characterized in that: The push-pull rod (300) is provided with a non-slip handle (600) on its back.

4. The ammonia sampling device as described in claim 1, characterized in that: The back of the insertion needle tube (400) is provided with a threaded sealing sleeve (401), and the end of the sampling tube (100) is provided with a threaded connecting tube (101) that is adapted to the threaded sealing sleeve (401). The threaded connecting tube (101) is connected to the sampling tube (100), and the threaded sealing sleeve (401) is threadedly connected to the outside of the threaded connecting tube (101).

5. The ammonia sampling device as described in claim 3, characterized in that: The anti-slip handle (600) is provided with anti-slip protrusions.

6. The ammonia sampling device as described in claim 1, characterized in that: The sampling tube (500) is provided with a bamboo-shaped quick connector (501) at its end.

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