High-precision filtering equipment for liquid raw materials for preparing PVC stabilizers
By designing a high-precision filtration device consisting of a protective box assembly, a diversion pipe assembly, and a filter assembly, the problems of filtration quality and ease of maintenance in the preparation of PVC stabilizers were solved, achieving efficient diversion filtration and device stability, and facilitating disassembly and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANDIA TECH (JIANGSU) CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing PVC stabilizer preparation process, conventional filtration equipment suffers from problems such as the filtration quality being affected by material impurities and inconvenient equipment maintenance.
A high-precision filtration device was designed, comprising a protective housing assembly, a diversion pipe assembly, and a filter assembly. The diversion pipe and filter assembly are connected by a quick-connect structure, and a support frame is used to provide stable support. A rectangular flange structure is used to ensure sealing and stability.
It achieves efficient diversion filtration, ensuring filtration quality, while facilitating device disassembly and maintenance, preventing material leakage, and improving operational stability and convenience.
Smart Images

Figure CN224404528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC stabilizer preparation technology, specifically a high-precision filtration device for liquid raw materials used in PVC stabilizer preparation. Background Technology
[0002] Broadly speaking, any additive that can improve the thermal stability of a polymer is called a heat stabilizer. Because polyvinyl chloride (PVC) has poor thermal stability, the vast majority of PVC stabilizers worldwide are used for PVC. Therefore, the term "PVC stabilizer" usually refers to heat stabilizers for PVC and its copolymers.
[0003] Conventional filtration equipment uses an independent container structure for large-scale processing. While this ensures efficiency, the processing quality can be easily affected by the amount of impurities inside the material, which can impact the filtration quality. Additionally, the device structure is not easy to maintain. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, comprising a protective box assembly and a filter assembly. Diverter assemblies are installed on both the left and right sides of the protective box assembly. The filter assembly is horizontally connected to one end of the diverter assemblies, and a support frame is installed on the surface of the filter assembly. The filter assembly includes a high-precision filter tank body, a protective sleeve, a flow control valve, and a connector. A protective sleeve is installed on the middle section surface of the high-precision filter tank body, and flow control valves are installed at both ends of the high-precision filter tank body. A connector is installed at the end of the flow control valve furthest from the high-precision filter tank body.
[0006] Furthermore, the protective enclosure assembly includes a main enclosure, a cover, and sealing elements. The top of the main enclosure is fitted with a cover, and the inner walls on both the left and right sides of the main enclosure are fitted with sealing elements.
[0007] Furthermore, the main housing and the cover are connected and combined with each other by a rectangular flange structure, and the sealing elements are arranged at equal intervals on the inner wall side of the main housing.
[0008] Furthermore, the diversion tube assembly includes a diversion tube body, a first connector, and a second connector. The first connector is horizontally connected to the end of the diversion tube assembly away from the filter assembly, and the second connector is connected to the end of the diversion tube body away from the first connector.
[0009] Furthermore, the second connector is installed in an equidistant array at one end of the main body of the diversion pipe and there are eight sets of it. The connector and the second connector are connected to each other using a quick connector structure. The filter assembly is installed in an equidistant array at one end of the main body of the diversion pipe and there are eight sets of it. The second connector is tightly inserted into the middle of the interior of the seal.
[0010] Furthermore, the support frame includes a first ring frame, a connecting seat, a mating lug, a mating hole, a mating tenon, a second ring frame, and a connecting lug. One end of the first ring frame is connected to the connecting seat, and the upper and lower sides of the end of the first ring frame away from the connecting seat are provided with mating lugs. The side of the first ring frame away from the connecting seat is provided with symmetrically horizontally opened mating holes, and a mating tenon is inserted into the inside of the mating hole. At the same time, the end of the mating tenon away from the first ring frame is connected to the second ring frame, and the end of the second ring frame close to the first ring frame is provided with symmetrically arranged mating lugs.
[0011] Furthermore, the first ring frame, connecting seat, and mating ear are integrated into a single structure, and the connecting seat has horizontal holes for bolt installation at each of the four opposite corners.
[0012] Furthermore, the inner surface structure of the mating hole matches the outer surface structure of the mating tenon, and the mating tenon, the second ring frame, and the connecting ear are integrated into one structure. Moreover, both the mating ear and the connecting ear are provided with holes for bolt installation.
[0013] This invention provides a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, which has the following advantages:
[0014] 1. This utility model, by using a quick-connect structure to connect the connector and the second connector, allows for convenient assembly and disassembly of the diversion pipe assembly and the filter assembly, while also ensuring the sealing of the device connection. Furthermore, since the array contains multiple filter assemblies, in conjunction with the diversion pipe assembly, the liquid raw materials transported from upstream equipment can be diverted into the interiors of multiple filter assemblies, thereby achieving diversion processing. Through the above structural design, the processed material can be refined and diverted. In this way, without affecting processing efficiency, the quality of the filtered liquid raw materials can be guaranteed as much as possible, thus achieving effective precision filtration. At the same time, the structural connection method of the diversion pipe assembly and the filter assembly also ensures convenient disassembly of the device, thereby facilitating convenient and flexible device maintenance.
[0015] 2. This utility model features a protective enclosure assembly, which consists of a main body and a cover connected by a rectangular flange. This design ensures both structural stability and airtightness. Combined with sealing elements, it allows the diversion pipe assembly to pass through the side of the main body while maintaining a tight seal at the connection between the protective enclosure assembly and the diversion pipe assembly. This structure provides external protection for the connected diversion pipe and filter assemblies, preventing damage during operation. Furthermore, the protective enclosure assembly itself can temporarily contain leaks caused by structural damage at the connection points or other structural locations of the diversion pipe and filter assemblies. With the use of a flow control valve, it minimizes the spread of leaked material, providing effective emergency response and assistance for maintenance.
[0016] 3. This utility model provides support frames on both ends of the filter assembly. An appropriate number of support frames can be selected for installation as needed. The support frame is installed and connected to the filter assembly by inserting the tenon on one side of the second ring frame into the mating hole on one side of the first ring frame, and then fixing the mating ears and connecting ears with bolts. Simultaneously, the support frames installed on one end of two adjacent filter assemblies are aligned structurally, and the two connecting seats are aligned and then fixed with bolts. This connects and combines adjacent filter assemblies, providing stable support for the device structure. Furthermore, it acts as a buffer and shock absorber between multiple filter assemblies, ensuring the structural strength of the device and the stability of its operation. The structural characteristics of the support frame also facilitate disassembly and assembly, ensuring ease of use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main body of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers according to this utility model.
[0018] Figure 2 This is a schematic diagram of the internal structure of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, according to this utility model.
[0019] Figure 3 This is a three-dimensional structural diagram of the protective box assembly of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, according to this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the diversion pipe assembly of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, according to this utility model.
[0021] Figure 5 This is a three-dimensional structural diagram of the filter component of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, according to this utility model.
[0022] Figure 6 This is a three-dimensional structural diagram of the support frame of a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, according to this utility model.
[0023] In the diagram: 1. Protective box assembly; 101. Main box body; 102. Cover; 103. Sealing element; 2. Diverter pipe assembly; 201. Diverter pipe body; 202. First connector; 203. Second connector; 3. Filter assembly; 301. High-precision filter tank body; 302. Protective sleeve; 303. Flow control valve; 304. Connector; 4. Support frame; 401. First ring frame; 402. Connecting seat; 403. Connecting ear; 404. Connecting hole; 405. Connecting tenon; 406. Second ring frame; 407. Connecting ear. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0025] like Figures 1 to 6As shown, a high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers includes a protective box assembly 1 and a filter assembly 3. Diverter pipe assemblies 2 are installed on both the left and right sides of the protective box assembly 1. The filter assembly 3 is horizontally connected to one end of the diverter pipe assembly 2, and a support frame 4 is installed on the surface of the filter assembly 3. The filter assembly 3 includes a high-precision filter tank body 301, a protective sleeve 302, a flow control valve 303, and a connector 304. The protective sleeve 302 is installed on the middle section surface of the high-precision filter tank body 301, and flow control valves 303 are installed at both ends of the high-precision filter tank body 301. A connector 304 is installed at the end of the flow control valve 303 furthest from the high-precision filter tank body 301. The diverter pipe assembly 2 includes a diverter pipe body 201, a first connector 202, and a second connector. 203, the end of the diversion tube assembly 2 away from the filter assembly 3 is horizontally connected to the first connector 202, and the end of the diversion tube body 201 away from the first connector 202 is connected to the second connector 203. The second connectors 203 are installed in an equidistant array at one end of the diversion tube body 201 and there are eight sets. The connector 304 and the second connector 203 are connected to each other by a quick connector structure. The filter assembly 3 is installed in an equidistant array at one end of the diversion tube body 201 by the second connectors 203 and there are eight sets. The second connector 203 is tightly inserted into the middle of the seal 103. By connecting the connector 304 and the second connector 203 to each other by a quick connector structure, the diversion tube assembly 2 and the filter assembly 3 can be easily disassembled and assembled, while ensuring the sealing of the device connection.
[0026] like Figures 1 to 6 As shown, the protective enclosure 1 includes a main enclosure 101, a cover 102, and sealing elements 103. The cover 102 is installed on the top of the main enclosure 101, and sealing elements 103 are installed on the inner walls of both the left and right sides of the main enclosure 101. The main enclosure 101 and the cover 102 are connected to each other by a rectangular flange structure, and the sealing elements 103 are equidistantly arranged on the inner wall side of the main enclosure 101. The entire protective enclosure 1 is composed of the main enclosure 101 and the cover 102, and the two are connected by a rectangular flange structure, which ensures both the stability of the device structure and the sealing of the combination between the structures.
[0027] like Figures 1 to 6As shown, the support frame 4 includes a first ring frame 401, a connecting seat 402, a mating lug 403, a mating hole 404, a mating tenon 405, a second ring frame 406, and a connecting lug 407. One end of the first ring frame 401 is connected to the connecting seat 402, and the upper and lower sides of the end of the first ring frame 401 away from the connecting seat 402 are provided with mating lugs 403. The side of the first ring frame 401 away from the connecting seat 402 has symmetrically horizontally opened mating holes 404, and the mating tenon 405 is inserted into the mating hole 404. At the same time, the end of the mating tenon 405 away from the first ring frame 401 is connected to the second ring frame 406, and the end of the second ring frame 406 near the first ring frame 401 has symmetrically arranged connecting lugs 407. The first ring frame 401, the connecting seat 402, and the mating lugs 403 are integrated into a single structure, and the four opposite corners of the connecting seat 402 are horizontally aligned. The system includes holes for bolt installation. The inner surface of the mating hole 404 matches the outer surface of the mating tenon 405. The mating tenon 405, the second ring frame 406, and the connecting ear 407 are integrated into a single structure. Both the mating ear 403 and the connecting ear 407 have holes for bolt installation. By inserting the mating tenon 405 on one side of the second ring frame 406 into the mating hole 404 on one side of the first ring frame 401, and then connecting the mating ear 403 and the connecting ear 407 with bolts, the support frame 4 is installed and combined with the filter assembly 3. At the same time, the support frames 4 installed at one end of two adjacent filter assemblies 3 are aligned, and the two connecting seats 402 are aligned. Then, the two adjacent connecting seats 402 are connected and fixed with bolts, thereby connecting and combining the adjacent filter assemblies 3.
[0028] In summary, as Figures 1 to 6 As shown, the high-precision filtration equipment for liquid raw materials used in the preparation of PVC stabilizer is used by first connecting the diversion pipe assemblies 2 on both sides of the protective box assembly 1 to the upstream and downstream equipment through the first connector 202 at one end of the diversion pipe body 201 to ensure the conveying and processing of liquid raw materials during the processing.
[0029] When liquid raw material is injected into the body of the diversion pipe 201, with the assistance of the second connector 203, the raw material will be diverted to each high-precision filter tank body 301 connected by the second connector 203. During this process, the flow control valve 303 will effectively control the flow to ensure the quality and efficiency of the processing.
[0030] During the entire operation of the device, if a structural leak occurs at the connection between the diversion pipe assembly 2 and the filter assembly 3, the connection between the diversion pipe body 201 and the main housing 101 will have sufficient sealing with the assistance of the seal 103, thereby providing emergency containment for the leaked raw materials.
[0031] When it is necessary to disassemble the filter assembly 3, the bolts connecting the docking lug 403 and the connecting lug 407 can be unscrewed, and the docking tenon 405 can be pulled out from the inside of the docking hole 404, thereby realizing the structural separation of the first ring frame 401 and the second ring frame 406. Finally, the quick-connect structure between the connector 304 and the second connector 203 can be used to realize the quick separation operation of the diversion pipe assembly 2 and the filter assembly 3.
[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers, comprising a protective enclosure (1) and a filter assembly (3), characterized in that: The protective box assembly (1) is equipped with a diversion pipe assembly (2) on both the left and right sides. The filter assembly (3) is horizontally connected to one end of the diversion pipe assembly (2), and a support frame (4) is installed on the surface of the filter assembly (3). The filter assembly (3) includes a high-precision filter tank body (301), a protective sleeve (302), a flow control valve (303), and a connector (304). The protective sleeve (302) is installed on the middle section surface of the high-precision filter tank body (301), and a flow control valve (303) is installed at both ends of the high-precision filter tank body (301). A connector (304) is installed at the end of the flow control valve (303) away from the high-precision filter tank body (301).
2. The high-precision filtration equipment for liquid raw materials used in the preparation of PVC stabilizers according to claim 1, characterized in that, The protective box assembly (1) includes a main box body (101), a cover (102) and a sealing element (103). The top of the main box body (101) is equipped with a cover (102), and the inner walls on the left and right sides of the main box body (101) are equipped with sealing elements (103).
3. The high-precision filtration equipment for liquid raw materials used in the preparation of PVC stabilizers according to claim 2, characterized in that, The main housing (101) and the cover (102) are connected to each other by a rectangular flange structure, and the sealing elements (103) are arranged at equal intervals on the inner wall side of the main housing (101).
4. The high-precision filtration equipment for liquid raw materials used in the preparation of PVC stabilizers according to claim 2, characterized in that, The diversion tube assembly (2) includes a diversion tube body (201), a first connector (202), and a second connector (203). The first connector (202) is horizontally connected to one end of the diversion tube assembly (2) away from the filter assembly (3), and the second connector (203) is connected to one end of the diversion tube body (201) away from the first connector (202).
5. A high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers according to claim 4, characterized in that, The second connector (203) is installed in an equidistant array at one end of the diversion tube body (201) and there are eight sets. The connector (304) and the second connector (203) are connected to each other by a quick connector structure. The filter assembly (3) is installed in an equidistant array at one end of the diversion tube body (201) and there are eight sets. The second connector (203) is tightly inserted into the middle of the interior of the seal (103).
6. The high-precision filtration equipment for liquid raw materials used in the preparation of PVC stabilizers according to claim 1, characterized in that, The support frame (4) includes a first ring frame (401), a connecting seat (402), a mating ear (403), a mating hole (404), a mating tenon (405), a second ring frame (406), and a connecting ear (407). One end of the first ring frame (401) is connected to the connecting seat (402), and the first ring frame (401) is provided with mating ears (403) on both the upper and lower sides of the end away from the connecting seat (402). The first ring frame (401) is provided with mating holes (404) horizontally and symmetrically on the side away from the connecting seat (402), and a mating tenon (405) is inserted inside the mating hole (404). At the same time, the end of the mating tenon (405) away from the first ring frame (401) is connected to the second ring frame (406), and the second ring frame (406) is provided with connecting ears (407) symmetrically on the end of the second ring frame (406) close to the first ring frame (401).
7. A high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers according to claim 6, characterized in that, The first ring frame (401), the connecting seat (402), and the docking ear (403) are integrated into one structure, and the four opposite corners of the connecting seat (402) are horizontally provided with holes for bolt installation.
8. A high-precision filtration device for liquid raw materials used in the preparation of PVC stabilizers according to claim 7, characterized in that, The inner surface structure of the mating hole (404) matches the outer surface structure of the mating tenon (405), and the mating tenon (405), the second ring frame (406) and the connecting ear (407) are integrated into one structure. Moreover, both the mating ear (403) and the connecting ear (407) are provided with holes for bolt installation.