CN111337311A - Equal-ratio roller type sampling device for liquid storage tank - Google Patents
Equal-ratio roller type sampling device for liquid storage tank Download PDFInfo
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- CN111337311A CN111337311A CN202010294191.2A CN202010294191A CN111337311A CN 111337311 A CN111337311 A CN 111337311A CN 202010294191 A CN202010294191 A CN 202010294191A CN 111337311 A CN111337311 A CN 111337311A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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Abstract
The invention provides an equal-proportion roller type sampling device for a liquid storage tank, which comprises a tank body, wherein the bottom of the tank body is provided with an equal-proportion roller assembly and a fixed pulley assembly; the equal proportion roller assembly comprises a mounting bracket and a roller, wherein the roller is provided with a small roller, a middle roller, a big roller and a power wheel, one end of the power steel cable is fixedly connected with the power wheel, and the other end of the power steel cable is connected with the floating disc. The fixed pulley component comprises a fixed frame and a fixed shaft arranged on the fixed frame, the fixed shaft is provided with small pulleys corresponding to the small idler wheels, the middle idler wheels and the large idler wheels, and sampling steel cables are wound among the small idler wheels, the middle idler wheels, the large idler wheels and the corresponding small pulleys. The invention enables the sampling pipe on the sampling steel cable to ascend or descend in equal proportion through the coaxial and different-diameter equal-proportion roller assemblies, and further adopts combined sampling for liquid materials at different liquid levels and different layer sections in the storage tank, thereby improving the sampling efficiency and reducing errors caused by manual sampling.
Description
Technical Field
The invention relates to the technical field of sampling in a liquid storage tank, in particular to an under-tank equal-ratio roller type sampling device for the liquid storage tank, which is applied to the industries of petrochemical industry, food, medicines and the like.
Background
In the industries of petrochemical industry, food, medicine and the like, most liquid materials are stored by adopting a fixed storage tank, because the liquid materials are statically stored in the storage tank for a long time, a lot of physical and chemical properties in the liquid materials can be changed, and in order to measure the performance and the quality of the liquid materials in the tank, the liquid materials in the storage tank need to be sampled for analysis and detection. At present, according to the sampling regulations of ISO013170-2004 manual sampling method for petroleum liquid and GB/T4756-2015 manual sampling method for petroleum liquid, liquid materials at different liquid levels in a storage tank need to be sampled and monitored, and when samples are collected, the requirements of the liquid levels at 1/6, 1/2 and 5/6 are always met, namely the upper, middle and lower parts of the storage tank are collected in equal proportion.
However, when sampling the combined samples of the liquid materials at different liquid levels and different intervals in the storage tank, the operator needs to guide the liquid samples at different liquid levels out of the tank through the tool to extract the required samples. Because the operation mode of manual sample not only needs the operation personnel to operate repeatedly many times, moreover, the manual sampling operation can cause the inaccurate phenomenon of sample in the sampling process, and then influences the detection effect. Therefore, in the actual operation process, due to the defects of the sampling equipment and the manual sampling mode, an accurate combined sample cannot be obtained, so that misjudgment is caused and loss is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a liquid storage tank equal-ratio roller type sampling device.
In order to achieve the purpose, the invention adopts the following technical scheme: an equal-ratio roller type sampling device for a liquid storage tank comprises a tank body, wherein an equal-ratio roller assembly and a fixed pulley assembly are arranged at the bottom of the tank body; the equal-proportion roller assembly comprises a mounting bracket and a roller, the roller is erected at the bottom of the tank body through the mounting bracket, a small roller, a middle roller, a large roller and a power wheel are arranged on the roller, and the small roller, the middle roller, the large roller and the power wheel are sequentially and fixedly arranged on the same axis of the roller; a power steel cable is wound on the power wheel, one end of the power steel cable is fixedly connected with the power wheel, and the other end of the power steel cable is connected to the floating disc; the fixed pulley assembly comprises a fixed frame and a fixed shaft arranged on the fixed frame, the fixed shaft and the rolling shaft are arranged in parallel, small pulleys corresponding to the small idler wheels, the middle idler wheels and the large idler wheels are arranged on the fixed shaft, sampling steel cables are wound among the small pulleys and are fixedly connected with the small idler wheels, the middle idler wheels and the large idler wheels, and the other ends of the sampling steel cables bypass the corresponding small pulleys one by one and are connected with small floating balls.
In the structure, one side of the fixed pulley assembly is provided with the pipe coiling device, the pipe coiling device is internally provided with the sampling pipe corresponding to the sampling steel cable, one end of the sampling pipe is fixedly arranged on the sampling steel cable and is arranged at the position below the small floating ball, and the other end of the sampling pipe bypasses the pipe coiling device and is communicated with the sampling valve arranged outside the tank body.
In the structure, a positioning support plate is arranged above the fixed pulley assembly, and three positioning through holes for the sampling steel cable to pass through are formed in the positioning support plate.
In the structure, a vortex spring is arranged in the power wheel, one end of the vortex spring is connected with the power wheel, and the other end of the vortex spring is connected with the rolling shaft.
Compared with the prior art, the invention has the beneficial effects that: the invention enables the sampling pipe on the sampling steel cable to ascend or descend in equal proportion through the coaxial and different-diameter equal-proportion roller assemblies, and further adopts combined sampling for liquid materials at different liquid levels and different layer sections in the storage tank, thereby improving the sampling efficiency and reducing errors caused by manual sampling.
Drawings
Fig. 1 is a schematic view of an overall structural embodiment of the present invention.
In the figure: the device comprises an equal proportion roller assembly 1, a fixed pulley assembly 2, a pipe coiling device 3, a floating disc 4, a positioning support plate 5, a mounting support 10, a rolling shaft 11, a small roller 12, a middle roller 13, a large roller 14, a power wheel 15, a power steel cable 16, a sampling steel cable 17, a small floating ball 18, a fixing frame 21, a fixing shaft 22, a small pulley 23 and a sampling pipe 31.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in FIG. 1, the present invention discloses an equal ratio roller type sampling device for a liquid storage tank, which comprises a tank body (not shown), wherein the bottom of the tank body is provided with an equal ratio roller assembly 1 and a fixed pulley assembly 2. Specifically, the equal proportion roller assembly 1 comprises a mounting bracket 10 and a roller 11, the roller 11 is erected at the bottom of the tank body through the mounting bracket 10, and the roller 11 is provided with a small roller 12, a middle roller 13, a large roller 14 and a power wheel 15. Wherein, the small roller 12, the middle roller 13 and the big roller 14 are coaxial and different-diameter equal-ratio cylinder structures and are sequentially and fixedly arranged on the same axis of the roller 11; the power wheel 15 is wound with a power steel cable 16, one end of the power steel cable 16 is fixedly connected with the power wheel 15, the other end of the power steel cable is connected with the floating disc 4, the floating disc 4 floats on the surface of the liquid material in the tank, namely, the floating disc 4 floating on the surface of the liquid material in the tank rises along with the liquid material, the power wheel 15 is pulled to rotate through the power steel cable 16, and then the small roller 12, the middle roller 13 and the large roller 14 on the roller 11 are driven to rotate. And, a vortex spring (not shown) is arranged in the power wheel 15, and when the floating disc 4 descends along with the liquid material, the small roller 12, the middle roller 13 and the large roller 14 on the rolling shaft 11 can be driven to rotate reversely by the vortex spring in the power wheel.
Further, the fixed pulley assembly 2 includes a fixed frame 21 and a fixed shaft 22 disposed on the fixed frame 21; specifically, the fixed shaft 22 is parallel to the roller 11 of the equal proportion roller assembly 1, three small pulleys 23 corresponding to the small roller 12, the middle roller 13 and the large roller 14 are respectively arranged on the fixed shaft 22, the three small pulleys 23 are rotatably connected to the fixed shaft 22, three sampling steel cables 17 are respectively wound between the small roller 12, the middle roller 13 and the large roller 14 and the three corresponding small pulleys 23, one end of each of the three sampling steel cables 17 is fixedly connected with the small roller 12, the middle roller 13 and the large roller 14, and the other end of each of the three sampling steel cables 17 bypasses the corresponding small pulleys 23 and is connected with the small floating balls 18.
Further, a pipe coiling device 3 is disposed on one side of the fixed pulley assembly 2, three sampling pipes 31 corresponding to the sampling steel cables 17 one to one are disposed in the pipe coiling device 3, wherein one end of each of the three sampling pipes 31 is fixed on the corresponding sampling steel cable 17 and is disposed below the small floating ball 18, and the other end of each of the sampling pipes bypasses the pipe coiling device 3 and is communicated with a sampling valve (not shown) disposed outside the tank body.
That is to say, when the floating plate 4 ascends along with the liquid material, the power wheel 15 is pulled to rotate through the power steel cable 16, so as to drive the equal-ratio small roller 12, the medium roller 13 and the large roller 14 which are coaxially arranged on the roller 11 and have different diameters to rotate (the scroll spring in the power wheel 15 is compressed to store energy), meanwhile, the sampling steel cable 17 wound among the small roller 12, the medium roller 13, the large roller 14 and the small pulley 23 is released, the floating ball connected with the sampling steel cable 17 drives the sampling pipe to ascend in equal proportion, and the liquid material in different liquid levels in the storage tank is sampled. Similarly, when the floating plate 4 descends along with the liquid material, the vortex spring in the power wheel releases the elastic force to drive the small roller 12, the middle roller 13 and the large roller 14 on the roller 11 to reversely rotate, and the sampling steel cable 17 is pulled back, so that the sampling steel cable 17 drives the sampling pipe to descend in equal proportion, and further the liquid material with different liquid levels in the storage tank is sampled, and the purpose of taking combined samples in equal proportion at any position after the floating plate floats is achieved.
Preferably, a positioning support plate 5 is disposed above the fixed pulley assembly 2, three through holes (not shown) for the sampling steel cables 17 to pass through are disposed on the positioning support plate 5, and the positioning support plate 5 can keep the three sampling steel cables 17 positioned in the liquid levels of the upper, middle and lower parts in equal proportion. Preferably, a scroll spring (not shown) is provided in the power wheel 15, and one end of the scroll spring is connected to the power wheel 15 and the other end is connected to the roller 11, and the scroll spring is used to provide a restoring force to the power wheel 15.
The invention enables the sampling pipe on the sampling steel cable to ascend or descend in equal proportion through the coaxial and different-diameter equal-proportion roller assemblies, and further adopts combined sampling for liquid materials at different liquid levels and different layer sections in the storage tank, thereby improving the sampling efficiency and reducing errors caused by manual sampling.
The above-mentioned description is only for the purpose of further explaining the technical contents of the present invention by way of example, so as to facilitate the reader's understanding, but does not represent a limitation to the embodiments of the present invention, and any technical extension or re-creation made by the present invention is protected by the present invention.
Claims (4)
1. The utility model provides a liquid storage tank geometric proportion roller type sampling device, includes a jar body, characterized by: the bottom of the tank body is provided with an equal proportion roller assembly and a fixed pulley assembly; the equal-proportion roller assembly comprises a mounting bracket and a roller, the roller is erected at the bottom of the tank body through the mounting bracket, a small roller, a middle roller, a large roller and a power wheel are arranged on the roller, and the small roller, the middle roller, the large roller and the power wheel are sequentially and fixedly arranged on the same axis of the roller; a power steel cable is wound on the power wheel, one end of the power steel cable is fixedly connected with the power wheel, and the other end of the power steel cable is connected with a floating disc; the fixed pulley assembly comprises a fixed frame and a fixed shaft arranged on the fixed frame, the fixed shaft and the rolling shaft are arranged in parallel, small pulleys corresponding to the small idler wheels, the middle idler wheels and the large idler wheels are arranged on the fixed shaft, sampling steel cables are wound among the small pulleys and are fixedly connected with the small idler wheels, the middle idler wheels and the large idler wheels, and the other ends of the sampling steel cables bypass the corresponding small pulleys one by one and are connected with small floating balls.
2. The liquid storage tank isometric roller sampling apparatus of claim 1 wherein: one side of the fixed pulley assembly is provided with a pipe coiling device, a sampling pipe corresponding to the sampling steel cable is arranged in the pipe coiling device, one end of the sampling pipe is fixedly arranged on the sampling steel cable and is arranged at the position below the small floating ball, and the other end of the sampling pipe bypasses the pipe coiling device and is communicated with a sampling valve arranged outside the tank body.
3. The liquid storage tank isometric roller sampling apparatus of claim 1 wherein: a positioning support plate is arranged above the fixed pulley assembly, and three positioning through holes for the sampling steel cable to pass through are formed in the positioning support plate.
4. The liquid storage tank isometric roller sampling apparatus of claim 1 wherein: and a vortex spring is arranged in the power wheel, one end of the vortex spring is connected with the power wheel, and the other end of the vortex spring is connected with the rolling shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294191.2A CN111337311A (en) | 2020-04-15 | 2020-04-15 | Equal-ratio roller type sampling device for liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294191.2A CN111337311A (en) | 2020-04-15 | 2020-04-15 | Equal-ratio roller type sampling device for liquid storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN111337311A true CN111337311A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010294191.2A Pending CN111337311A (en) | 2020-04-15 | 2020-04-15 | Equal-ratio roller type sampling device for liquid storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851110A (en) * | 2022-06-13 | 2022-08-05 | 南通朝蓬光电科技有限公司 | Special fixture for edge metalized optical lens |
-
2020
- 2020-04-15 CN CN202010294191.2A patent/CN111337311A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851110A (en) * | 2022-06-13 | 2022-08-05 | 南通朝蓬光电科技有限公司 | Special fixture for edge metalized optical lens |
| CN114851110B (en) * | 2022-06-13 | 2024-01-16 | 南通朝蓬光电科技有限公司 | Special fixture for edge metallization optical lens |
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