Disc filter with sampling device

By introducing the coordinated control of solenoid valves and flow counters into the disc filter, the problem of sampling difficulties under negative pressure was solved, achieving accurate sampling and equipment stability, and improving production efficiency and equipment lifespan.

CN224388264UActive Publication Date: 2026-06-23DEYANG SHANGYI PETROLEUM ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEYANG SHANGYI PETROLEUM ENG CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing disc filters have difficulty sampling under negative pressure, making it impossible to accurately determine the filtrate parameters of a single unit, which affects production efficiency and data accuracy.

Method used

A disc filter with a sampling device was designed. It uses a solenoid valve and a flow counter for coordinated control to achieve non-interference sampling. The sampling volume is displayed through a capacity scale bar to ensure sampling accuracy and equipment stability.

Benefits of technology

It enables accurate sampling without affecting the liquid transport in the main pipeline, improving production efficiency and sampling accuracy, extending equipment lifespan, and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disc filter with sampling device relates to disc filter technical field, including main pipeline, the outer wall fixed sleeve of main pipeline has reinforced sleeve pipe, the outer wall center of reinforced sleeve pipe is fixedly connected with solenoid valve no.
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Description

Technical Field

[0001] This utility model relates to the field of disc filter technology, specifically to a disc filter with a sampling device. Background Technology

[0002] A disc filter is a negative pressure filtration device. The filtrate produced by the disc filter enters the mother liquor tank through the mother liquor pipe, collectively referred to as the seed mother liquor. In production, the indicators of the seed mother liquor are related to the control of production costs, so it is necessary to regularly sample and monitor the mother liquor indicators. However, in actual production, the mother liquor sample is a comprehensive sample of the filtrate from multiple disc filters. When the indicators exceed the control range, we need to analyze and confirm which filtrate is exceeding the standard.

[0003] The existing method of judgment is to open the sampling valve, but the mother liquor pipe is under negative pressure. Normally, opening the sampling valve will only draw in air and no sample can be obtained. The mother liquor index of this unit can only be indirectly judged by observing the condition of the disc filter. It is not possible to clearly determine the index of the filtrate of a single disc filter. This process can only be done by experienced workers. It is not possible to obtain the result directly, and it cannot guarantee that the result is correct every time. It is not convenient to adjust the production data in a timely manner. Moreover, there are often two mother liquor pipes in the disc filter. Directly sampling in the mother liquor pipe will affect the flow of other pipes. Utility Model Content

[0004] The purpose of this invention is to provide a disc filter with a sampling device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A disc filter with a sampling device includes a main pipe, a reinforcing sleeve fixedly sleeved on the outer wall of the main pipe, a solenoid valve fixedly connected at the center of the outer wall of the reinforcing sleeve, and a U-shaped liquid storage tube fixedly connected to the bottom surface of the reinforcing sleeve.

[0007] Solenoid valve 2 and solenoid valve 3 are fixedly connected to the outer walls near both ends of the U-shaped liquid storage tube, and a drain pipe is fixedly connected to the center of the bottom surface of the U-shaped liquid storage tube.

[0008] A further improvement of this utility model is that a flow counter is fixedly connected to the outer wall of the U-shaped liquid storage tube near the liquid inlet end.

[0009] A further improvement of this utility model is that a manual control valve is fixedly connected to the outer wall of the drain pipe.

[0010] A further improvement of this utility model is that a sampling cup is provided below the drain pipe, and a capacity scale strip is fixedly connected to the outer wall of the sampling cup.

[0011] A further improvement of this utility model is that the main pipeline is made of stainless steel.

[0012] A further improvement of this utility model is that the reinforcing sleeve is fixed to the main pipeline by welding.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a disc filter with a sampling device. The sampling device of the disc filter has a simple structure. Through the coordinated control of solenoid valve one, solenoid valve two, and solenoid valve three, sampling can be achieved without affecting the normal transport of liquid in the main pipeline, ensuring the continuous operation of the filter and improving production efficiency.

[0015] 2. This utility model provides a disc filter with a sampling device. With the help of a flow counter, the sampling amount can be precisely controlled to ensure that the amount of each sample is consistent, thereby improving the accuracy and reliability of sampling and facilitating subsequent sample detection and analysis.

[0016] 3. This utility model provides a disc filter with a sampling device. The capacity scale bar on the outer wall of the sampling cup can intuitively display the sampling volume, making it convenient for operators to monitor the sampling status at any time and making operation convenient. The main pipeline is made of stainless steel, which has good corrosion resistance and wear resistance, extending the service life of the main pipeline and reducing the maintenance cost of the equipment. The reinforcing sleeve is fixed to the main pipeline by welding, making the connection between the two firm, enhancing the stability of the overall structure, and being able to withstand the pressure generated during liquid flow, ensuring the safety of equipment operation. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sampling cup structure of this utility model.

[0021] In the diagram: 1. Main pipe; 2. Reinforcing sleeve; 3. Solenoid valve one; 4. Solenoid valve two; 5. Solenoid valve three; 6. U-shaped liquid storage pipe; 7. Flow counter; 8. Drain pipe; 9. Manual control valve; 10. Sampling cup; 11. Capacity scale bar. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model provides a disc filter with a sampling device, including a main pipe 1, a reinforcing sleeve 2 fixedly sleeved on the outer wall of the main pipe 1, a solenoid valve 3 fixedly connected at the center of the outer wall of the reinforcing sleeve 2, and a U-shaped liquid storage tube 6 fixedly connected to the bottom surface of the reinforcing sleeve 2.

[0029] Solenoid valve 2 4 and solenoid valve 3 5 are fixedly connected to the outer walls near both ends of the U-shaped liquid storage tube 6, and a drain pipe 8 is fixedly connected to the center of the bottom surface of the U-shaped liquid storage tube 6.

[0030] Through the coordinated control of solenoid valve 3, solenoid valve 4, and solenoid valve 5, sampling can be achieved without affecting the normal transport of liquid in the main pipeline 1, ensuring the continuous operation of the filter and improving production efficiency.

[0031] Example 2

[0032] like Figure 1-4As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a flow counter 7 is fixedly connected to the outer wall of the U-shaped liquid storage tube 6 near the liquid inlet end. The flow counter 7 allows for precise control of the sampling amount, ensuring consistency in the amount sampled each time, improving the accuracy and reliability of sampling, and facilitating subsequent sample detection and analysis.

[0033] A manual control valve 9 is fixedly connected to the outer wall of the drain pipe 8.

[0034] A sampling cup 10 is provided below the drain pipe 8, and a capacity scale strip 11 is fixedly connected to the outer wall of the sampling cup 10.

[0035] The main pipe 1 is made of stainless steel.

[0036] The reinforcing sleeve 2 is fixed to the main pipeline 1 by welding.

[0037] Example 3

[0038] like Figure 1-4 As shown, based on Example 1, this utility model provides a technical solution: preferably, the U-shaped liquid storage tube 6 is made of polytetrafluoroethylene, which has excellent corrosion resistance and high temperature resistance, and is suitable for sampling of various liquids.

[0039] Solenoid valve 1 (3), solenoid valve 2 (4), and solenoid valve 3 (5) are all pilot-operated solenoid valves with fast response and good sealing performance. Their control method is automatic control through an external control system, which can be linked with flow counter 7 to realize automated sampling control.

[0040] Flow counter 7 uses a turbine flow meter, model LWGY-15, with a measurement range of 0.6-6m. 3 / h, which can meet the measurement needs of general industrial sampling.

[0041] The sampling cup 10 is made of transparent glass with a capacity of 500ml, which makes it easy to observe the liquid state and has a high degree of cleanliness, meeting the sampling requirements.

[0042] The manual control valve 9 is a ball valve, which is easy to operate, has reliable sealing performance, and can effectively control the discharge of liquid.

[0043] The working principle of this disc filter with a sampling device will be explained in detail below.

[0044] like Figure 1-4As shown, when the disc filter with sampling device is working, the main pipe 1 serves as the main channel for liquid transportation, and the liquid flows normally within the main pipe 1. When sampling is required, solenoid valve 3 is closed first, while solenoid valves 4 and 5 are opened simultaneously. At this time, due to the closure of solenoid valve 3, the liquid in the main pipe 1 will enter the U-shaped storage tube 6 through the reinforcing sleeve 2, and the liquid will flow within the U-shaped storage tube 6. During this process, the flow counter 7, which is fixedly connected to the outer wall of the U-shaped storage tube 6 near the inlet end, will measure the flowing liquid. When the liquid volume measured by the flow counter 7 reaches the rated value, solenoid valves 4 and 5 are closed, while solenoid valve 3 is opened simultaneously. At this time, the liquid in the main pipe 1 resumes normal flow and no longer enters the U-shaped storage tube 6, while a certain amount of liquid to be sampled remains in the U-shaped storage tube 6. Afterwards, the operator manually opens the manual control valve 9 fixedly connected to the outer wall of the drain pipe 8. The liquid remaining in the U-shaped storage tube 6 will then flow through the drain pipe 8 into the sampling cup 10 located below the drain pipe 8. The capacity scale 11 on the outer wall of the sampling cup 10 allows the operator to easily observe the sample volume. This completes one sampling operation.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The present invention has been described in detail above, but modifications or improvements can be made based on it, which will be apparent to those skilled in the art. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A disc filter with a sampling device, comprising a main pipe (1), characterized in that: The outer wall of the main pipe (1) is fixedly fitted with a reinforcing sleeve (2), a solenoid valve (3) is fixedly connected at the center of the outer wall of the reinforcing sleeve (2), and a U-shaped liquid storage tube (6) is fixedly connected to the bottom surface of the reinforcing sleeve (2). Solenoid valve 2 (4) and solenoid valve 3 (5) are fixedly connected to the outer walls near both ends of the U-shaped liquid storage tube (6), and a drain pipe (8) is fixedly connected to the center of the bottom surface of the U-shaped liquid storage tube (6).

2. A disc filter with a sampling device according to claim 1, characterized in that: A flow counter (7) is fixedly connected to the outer wall of the U-shaped liquid storage tube (6) near the liquid inlet end.

3. A disc filter with a sampling device according to claim 1, characterized in that: A manual control valve (9) is fixedly connected to the outer wall of the drain pipe (8).

4. A disc filter with a sampling device according to claim 1, characterized in that: A sampling cup (10) is provided below the drain pipe (8), and a capacity scale strip (11) is fixedly connected to the outer wall of the sampling cup (10).

5. A disc filter with a sampling device according to claim 1, characterized in that: The main pipeline (1) is made of stainless steel.

6. A disc filter with a sampling device according to claim 1, characterized in that: The reinforcing sleeve (2) is fixed to the main pipe (1) by welding.