Sulfuric acid sampling tool for lead-acid storage battery

Abstract

The utility model relates to a sulfuric acid sampling tool for a lead-acid storage battery. Belongs to the technical field of lead-acid storage battery electrolyte preparation. The device mainly solves the problem that the density value of sulfuric acid in the middle or other positions of a tank cannot be detected when sulfuric acid is taken from the bottom of the tank at present. The sampler is mainly characterized in that a sampler assembly is composed of a sampler pumping rod, a sampler handle, a sampler outer cylinder and a sampler outer cylinder cover; the sampler pumping rod is arranged in the sampler outer cylinder, a sealing piston ring at one end of the sampler pumping rod is matched with a sampling opening at one end of the sampler outer cylinder, and one end of the sampler pumping rod penetrates through a central through hole of the sampler outer cylinder cover and is connected with the sampler handle; therefore, the sulfuric acid electrolyte at any position (different depths) in the container can be accurately sampled, and the layering phenomenon of the sulfuric acid electrolyte in the storage process can be known through sampling analysis. The device has the characteristics of simple structure, convenience in use and low cost, and is mainly used for storing the sulfuric acid electrolyte in the tank body and detecting and sampling the sulfuric acid electrolyte at different depths.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid battery electrolyte preparation, and specifically relates to a lead-acid battery sulfuric acid sampling tool, in particular to sampling sulfuric acid at different positions and depths, and also relates to a sampling tool for all liquids. Background Art

[0002] Lead-acid batteries cannot do without sulfuric acid electrolyte during the manufacturing and use process. During the manufacturing process, concentrated sulfuric acid with higher density is prepared in the tank according to different needs, and then prepared into relatively low dilute sulfuric acid with different densities. The prepared dilute sulfuric acid is used for the preparation of positive and negative lead pastes and the addition of sulfuric acid in the battery formation and charging process. Since it is now an industrialized production, this process uses a larger container for preparation and storage. After preparation, the sulfuric acid inside the tank is sampled and tested. When sampling, the sulfuric acid valve is opened to release sulfuric acid, and then relevant tests are performed. Although this can detect that the sulfuric acid index meets the standard requirements, it also has limitations. Relatively affected by the production plan, the prepared sulfuric acid is not used in time, and then stored for a long time, resulting in stratification of sulfuric acid inside the container, so that sulfuric acid of different densities is used in the paste or battery formation section. One is the uniformity and density difference at different positions, and the other is that the stratification phenomenon during storage cannot be well monitored.

[0003] At present, the sampling method used is mostly to open a hole at the bottom of the tank, and then release the corresponding sulfuric acid for testing. In this way, the density of sulfuric acid at the bottom of the container is detected, and sulfuric acid will be stratified during storage. If no control is adopted, sulfuric acid of different densities will be used, resulting in poor and uneven lead paste and battery formation, resulting in differences in battery performance and affecting the use of the battery. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art, thereby providing an electrolyte sampling tooling in the production process of lead-acid batteries, which can effectively sample the sulfuric acid electrolyte in the process, and can also accurately sample the sulfuric acid electrolyte at different positions (depths), especially sulfuric acid that has been stored for a relatively long time, and then through detection and comparison, understand the stratification law of the sulfuric acid electrolyte during the storage process, so as to formulate effective control measures (such as increasing stirring during the storage process) to ensure the uniformity of the electrolyte in the container, thereby ensuring the consistency of product quality.

[0005] The technical solution of the utility model is: a lead-acid battery sulfuric acid sampling tool, which is used for extracting sulfuric acid electrolyte at different depths in a container, and is characterized in that: a sampler assembly is composed of a sampler withdrawal rod, a sampler handle, a sampler outer cylinder and a sampler outer cylinder cover; wherein, the sampler withdrawal rod is installed in the sampler outer cylinder, a sealing piston ring at one end of the sampler withdrawal rod cooperates with a sampling port at one end of the sampler outer cylinder, and one end of the sampler withdrawal rod passes through the central through hole of the sampler outer cylinder cover and is connected to the sampler handle.

[0006] The sampling port described in the technical solution of the utility model is conical; the sealing piston ring is conical in shape consistent with the conical shape of the sampling port.

[0007] The sealing piston ring described in the technical solution of the utility model is provided with two concave circular rings with different diameters, and the two concave circular rings are respectively provided with corresponding first O-type sealing rings and second O-type sealing rings.

[0008] One of the two concave rings described in the technical solution of the utility model is located at the same circle of the outer cylinder of the sampler, and the other is located at the bottom of the outer cylinder of the sampler.

[0009] The sealing piston ring described in the technical solution of the utility model is in clearance fit with the sampling port, and is in tight fit after the first O-type sealing ring and the second O-type sealing ring are installed.

[0010] The first O-ring and the second O-ring described in the technical solution of the utility model are both made of wear-resistant and corrosion-resistant materials.

[0011] The sampler draw rod described in the technical solution of the utility model is provided with scale lines for sampling amount.

[0012] The sampler drawing rod described in the technical solution of the utility model is threadedly connected with the concave circular ring inner thread hole of the sampler handle through the threaded outer thread at one end of the sampler drawing rod.

[0013] The sampler outer cylinder described in the technical solution of the utility model is threadedly connected with the threaded inner thread of the sampler outer cylinder cover through the threaded outer thread at one end of the sampler outer cylinder.

[0014] The sampling port described in the technical solution of the utility model is provided with a joint for connecting with a sampling tube.

[0015] The utility model can ensure the accuracy of the sampling position, sampling point and sampling samples, thereby ensuring the authenticity and validity of the data after the sample is analyzed, providing practical help for understanding the stratification phenomenon of sulfuric acid electrolyte during storage, and providing a basis for the formulation of effective measures in the production process, so as to improve the uniformity of sulfuric acid electrolyte in the container and the consistency of product performance, and prolong the service life of the battery.

[0016] The utility model has the characteristics of simple structure, convenient use and low cost, and is mainly used for detecting and sampling sulfuric acid electrolytes of different depths stored in a tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model.

[0018] Figure 2 It is the front view of the outer tube of the sampler of the utility model.

[0019] Figure 3 It is a front view of the sampler draw rod of the utility model.

[0020] Figure 4 for Figure 3 Enlarged view of the center sealing piston ring.

[0021] Figure 5 It is the front view of the handle of the utility model.

[0022] Figure 6 It is the front view of the outer cylinder cover of the sampler of the utility model.

[0023] Figure 7 This is a front view of the first sealing ring of the utility model.

[0024] Figure 8 This is a front view of the second sealing ring of the utility model.

[0025] In the figure: 1-sampler assembly; 2-sampler outer tube; 21-sampling port; 22-threaded external thread; 3-sampler withdrawal rod; 31-threaded external thread; 32-sealing piston ring; 33-scale line; 34-concave circular ring; 4-sampler handle; 41-handle rod; 42-concave circular ring inner thread hole; 5-sampler outer tube cover; 51-center through hole; 52-threaded internal thread; 6-O-type sealing ring; 61-first O-type sealing ring; 62-second O-type sealing ring. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figures 1 to 8 As shown, the utility model is an embodiment of a lead-acid battery sulfuric acid sampling tool, which is used to extract sulfuric acid electrolyte at different depths in a container. The sampler assembly 1 is composed of a sampler extraction rod 3, a sampler handle 4, a sampler outer cylinder 2 and a sampler outer cylinder cover 5.

[0028] The sampler outer cylinder 2 is in the shape of a circular tube, with a conical sampling port 21 designed at the bottom of the outer surface, and a threaded outer thread 22 designed at the top of the outer surface, and is made of corrosion-resistant material. The top cover of the sampler outer cylinder cover 5 is provided with a central through hole 51 and a threaded inner thread 52 on the side wall, and the sampler outer cylinder cover 5 is threadedly locked with the sampler outer cylinder 2 through the threaded inner thread 52 and the threaded outer thread 22. The sampling port 21 is provided with a connector for connecting to a sampling tube. When in use, a hose can be connected to the connector of the conical sampling port 21, and then the hose can be placed in the liquid inside the container to perform the corresponding sampling operation.

[0029] The sampler draw rod 3 is a cylindrical structure, with a threaded outer thread 31 at the top, a conical sealing piston ring 32 at the bottom, and different scale lines 33 for sampling amounts in the middle, and is made of corrosion-resistant material. The sampler draw rod 3 is installed in the sampler outer cylinder 2 and passes through the central through hole 51 of the sampler outer cylinder cover 5. The sealing piston ring 32 is designed with two concave rings 34 of different sizes, one at the same circular position of the sampler outer cylinder 2, and the other at the bottom of the sampler outer cylinder 2. The O-type sealing ring 6 includes a first O-type sealing ring 61 and a second O-type sealing ring 62, the second O-type sealing ring 62 is installed on the large concave ring 34, and the first O-type sealing ring 61 is installed on the small concave ring 34. The first O-type sealing ring 61 and the second O-type sealing ring 62 are both made of wear-resistant and corrosion-resistant materials. The outside of the sealing piston ring 32 is matched with the inner wall of the sampler outer cylinder 2. The second O-type sealing ring 62 is sleeved on the concave ring 34 of the sealing piston ring 32 and is closely matched with the inner wall of the sampler outer tube 2. The scale line 33 is used to control the amount of sampling.

[0030] The sampler handle 4 is provided with a handle rod 41 and a concave circular ring inner thread hole 42, and is made of corrosion-resistant material. The sampler draw rod 3 is threadedly connected to the sampler handle 4 through a threaded outer thread 31 and a concave circular ring inner thread hole 42.

[0031] Test steps:

[0032] Step 1: Put two first O-rings 61 and second O-rings 62 of different sizes into the two concave circular rings 34 of the sealing piston ring 32 at the bottom of the sampler rod 3. Then insert the sampler rod 3 into the sampler outer tube 2, pass the top of the sampler rod 3 through the central through hole 51 of the sampler outer tube cover 5, and rotate the sampler outer tube cover 5 so that the threaded inner thread 52 of the sampler outer tube cover 5 is tightly fixed on the threaded outer thread 22 at the top of the sampler outer tube 2. Finally, align the threaded outer thread 31 at the top of the sampler rod 3 with the concave circular ring inner thread hole 42 on the sampler handle 4, and rotate the sampler handle 4 to complete the assembly of the sampler.

[0033] Step 2: Before testing, push the sampler rod 3 to the bottom to ensure that the sealing piston ring 32 at the bottom of the sampler rod 3 is in full contact with the conical sampling port 22 of the sampler outer tube 2.

[0034] Step 3: Insert the sampler assembly 1 into the sulfuric acid electrolyte container, and determine the insertion depth of the sampler assembly 1 according to the height of the container. First, sample the top layer of sulfuric acid inside the container. After the sampler assembly 1 is placed in a fixed position, hold the sampler outer tube 2 with one hand, and gently pull the sampler rod 3 with the other hand to suck the sulfuric acid sample into the sealed area inside the sampler outer tube 2. When there is a requirement for the sampling amount, the sampling scale line 33 on the sampler rod 3 can be observed during the pulling of the sampler rod 3 to achieve more accurate sampling amount control.

[0035] Step 4: Take the sampler assembly 1 out of the container, and push the sampler draw rod 3 to squeeze the internal sample into the corresponding sample collection box.

[0036] Step 5: Repeat steps 2 to 4 to sample the sulfuric acid in the middle and bottom of the container, and then collect them.

[0037] Step 6: Send the obtained samples for inspection and analysis, and then clean the sampling tooling to prevent acid corrosion, especially the sealing piston ring 32 at the bottom of the sampler's withdrawal rod 3 and the first O-ring 61 and the second O-ring 62 in the concave ring 34.

[0038] The utility model can be used at any time. According to the depth of sulfuric acid in the sulfuric acid container, the sulfuric acid at different depths in the container is sampled by the sulfuric acid sampling tool, which can achieve the accuracy of the sampling point and position, and ensure that the samples taken do not cross each other, so as to obtain relatively true sulfuric acid component analysis data. At the same time, it can also be used for accurate sampling of all liquids. It can also sample sulfuric acid and liquids in other deeper containers.

[0039] The utility model can accurately sample sulfuric acid electrolyte at different positions and depths inside a container, and then conduct comparative tests on density and composition, so as to understand the stratification phenomenon of sulfuric acid electrolyte during storage. At the same time, effective measures can be formulated for preventing stratification of the electrolyte through the data after accurate detection, thereby ensuring the uniformity of sulfuric acid electrolyte and thus ensuring the consistency of product performance.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lead-acid battery sulfuric acid sampling tool, used to extract sulfuric acid electrolyte at different depths in a container, characterized by: The sampler assembly (1) is composed of a sampler extraction rod (3), a sampler handle (4), a sampler outer cylinder (2) and a sampler outer cylinder cover (5); wherein the sampler extraction rod (3) is installed in the sampler outer cylinder (2), a sealing piston ring (32) at one end of the sampler extraction rod (3) cooperates with a sampling port (21) at one end of the sampler outer cylinder (2), and one end of the sampler extraction rod (3) passes through a central through hole (51) of the sampler outer cylinder cover (5) and is connected to the sampler handle (4).

2. A lead-acid battery sulfuric acid sampling tool according to claim 1, characterized in that: The sampling port (21) is conical; and the sealing piston ring (32) is conical in shape consistent with the conical shape of the sampling port (21).

3. A lead-acid battery sulfuric acid sampling tool according to claim 2, characterized in that: The sealing piston ring (32) is provided with two concave circular rings (34) of different diameters, and the two concave circular rings (34) are respectively provided with a corresponding first O-type sealing ring (61) and a second O-type sealing ring (62).

4. A lead-acid battery sulfuric acid sampling tool according to claim 3, characterized in that: One of the two concave circular rings (34) is located at the same circular position as the sampler outer cylinder (2), and the other is located at the bottom of the sampler outer cylinder (2).

5. A lead-acid battery sulfuric acid sampling tool according to claim 4, characterized in that: The sealing piston ring (32) and the sampling port (21) are clearance-fitted, and are tightly fitted after the first O-type sealing ring (61) and the second O-type sealing ring (62) are installed.

6. A lead-acid battery sulfuric acid sampling tool according to claim 5, characterized in that: The first O-ring (61) and the second O-ring (62) are both made of wear-resistant and corrosion-resistant materials.

7. A lead-acid battery sulfuric acid sampling tool according to any one of claims 1-6, characterized in that: The sampler draw rod (3) is provided with scale lines (33) for sampling volume.

8. A lead-acid battery sulfuric acid sampling tool according to any one of claims 1-6, characterized in that: The sampler draw rod (3) is threadedly connected to the concave circular ring inner thread hole (42) of the sampler handle (4) via a threaded outer thread (31) at one end of the sampler draw rod (3).

9. A lead-acid battery sulfuric acid sampling tool according to any one of claims 1-6, characterized in that: The sampler outer cylinder (2) is threadedly connected to the threaded inner cylinder (52) of the sampler outer cylinder cover (5) via the threaded outer cylinder (22) at one end thereof.

10. A lead-acid battery sulfuric acid sampling tool according to any one of claims 1-4, characterized in that: The sampling port (21) is provided with a joint for connecting to a sampling tube.

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