Tower bottom pump impurity filter
By designing an innovative structure for the filter box and filter components, the problem of filter plate clogging was solved, enabling rapid replacement and cleaning of the filter plates, and ensuring the stability of pump flow and the continuity of production.
Patent Information
- Application Number
- CN202520023364.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-04
AI Technical Summary
The filter plates of the existing bottom pump impurity filter are prone to clogging and cannot be quickly disassembled for cleaning or replacement, which affects the pump flow rate.
A structure including a filter box, filter assembly, sealing component, slide groove, drain component and connecting pipe is designed. The filter plate can be quickly replaced and cleaned by sliding insertion and flange connection. The sealing component prevents gas leakage and the drain component discharges impurities.
It enables quick replacement and cleaning of filter plates, prevents clogging, ensures stable pump flow, and improves production efficiency.
Smart Images

Figure CN223818318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration technology, and in particular to a bottom pump impurity filter. Background Technology
[0002] Primary distillation columns, rectification columns, and transfer pumps are commonly used production and conveying equipment in the petrochemical industry. Because the materials used in production contain impurities, these impurities, along with oxides and rust from the rectification column, can easily enter the bottom pumps, reflux pumps, and other conveying equipment as the materials flow, causing wear and blockage of the pump impellers, and even damage to the mechanical seals, severely affecting normal production.
[0003] A bottom pump impurity filter (CN202451421U) is available, comprising a cylindrical shell closed at both ends. An impurity filtration device is installed inside the cylindrical shell, dividing its inner cavity into an impurity chamber and a clean chamber along the axial direction of the shell. The impurity filtration device includes two rails symmetrically arranged on the inner wall of the cylindrical shell, filter plates with perforations inserted within the two rails, and filter screens disposed on both sides of the filter plates. A material inlet is located on the side wall of the cylindrical shell corresponding to the impurity chamber, and a material outlet is located on the side wall corresponding to the clean chamber. After installing this bottom pump impurity filter, materials containing impurities are effectively blocked and filtered before entering the pump, preventing impurities from entering the bottom pump, reflux pump, and other conveying equipment. This avoids wear and blockage of the pump impeller and even damage to the mechanical seal, ensuring normal production.
[0004] However, with the above-mentioned utility model, the filter plate is prone to clogging after long-term use, and the filter plate cannot be quickly disassembled for cleaning or replacement, which affects the pump flow rate. Utility Model Content
[0005] The purpose of this utility model is to provide a bottom pump impurity filter, which aims to solve the problem that the filter plate of the existing device is easily clogged after long-term use, and the filter plate cannot be quickly disassembled for cleaning or replacement, thus affecting the pump flow rate.
[0006] To achieve the above objectives, this utility model provides a bottom pump impurity filter, including a filter box and a filter assembly, wherein the filter assembly includes a sealing component, a chute, a filter plate, a sewage discharge component, a connecting pipe, and a flange;
[0007] The chute is connected to the filter box and located on one side of the filter box. The filter plate is slidably connected to the chute and located inside the chute. The sewage discharge component is connected to the filter box and located outside the filter box. The sealing component is connected to the chute and located outside the chute. The two connecting pipes are connected to the filter box and located at both ends of the filter box. The flange is connected to the connecting pipe and located on one side of the connecting pipe.
[0008] The sealing component includes a sealing cap and a sealing ring. The sealing cap is slidably connected to the slide groove and is located outside the slide groove. The sealing ring is fixedly connected to the sealing cap and is located at the bottom of the sealing cap.
[0009] The sewage discharge component includes a drain pipe and a control valve. The drain pipe is connected to the filter box and is located on one side of the filter box. The control valve is connected to the drain pipe and is located on one side of the drain pipe.
[0010] The filter assembly further includes a handle and casters. The handle is fixedly connected to the filter plate and located on top of the filter plate, while the casters are rotatably connected to the filter box and located at the bottom of the filter box.
[0011] The filter assembly further includes a mounting plate, a threaded rod, and a support pad. The mounting plate is fixedly connected to the filter box and located on the outside of the filter box. The threaded rod is threadedly connected to the mounting plate and located on one side of the mounting plate. The support pad is fixedly connected to the threaded rod and located at the bottom of the threaded rod.
[0012] This utility model discloses a bottom pump impurity filter. The filter box has connecting pipes at both ends; one end connects to the tower's discharge port, and the other end connects to the pump body. The connection is achieved via a flange. A filter plate is inserted into the filter box via a sliding groove. The filter plate filters impurities and can be periodically removed for replacement or cleaning. The sliding insertion method for installing the filter plate is simple and efficient. A sealing component prevents gas from overflowing from the sliding groove, thus protecting the processing environment. A drainage component allows impurities to be discharged during cleaning, preventing accumulation. This design solves the problem of existing devices where long-term use of the filter plate easily leads to clogging, and the inability to quickly disassemble and clean or replace the filter plate, affecting pump flow. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a structural diagram of a bottom pump impurity filter according to the present invention.
[0015] Figure 2 This is a cross-sectional structural schematic diagram of a bottom pump impurity filter according to the present invention.
[0016] Figure 3 This is a side sectional view of a bottom pump impurity filter according to the present invention.
[0017] 101-Filter box, 102-Filter assembly, 103-Sealing component, 104-Slide groove, 105-Filter plate, 106-Drainage component, 107-Connecting pipe, 108-Flange, 109-Sealing cover, 110-Sealing ring, 111-Drain pipe, 112-Control valve, 113-Handle, 114-Wheel caster, 115-Mounting plate, 116-Threaded rod, 117-Support pad. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0019] First Embodiment
[0020] Please see Figures 1-3 , Figure 1 This is a structural diagram of a bottom pump impurity filter according to the present invention. Figure 2 This is a cross-sectional structural schematic diagram of a bottom pump impurity filter according to the present invention. Figure 3 This is a side sectional view of a bottom pump impurity filter according to the present invention.
[0021] This utility model provides a bottom pump impurity filter, comprising a filter box 101 and a filter assembly 102. The filter assembly 102 includes a sealing component 103, a sliding groove 104, a filter plate 105, a sewage discharge component 106, a connecting pipe 107, a flange 108, a sealing cover 109, a sealing ring 110, a drain pipe 111, a control valve 112, a handle 113, a caster wheel 114, a mounting plate 115, a threaded rod 116, and a support pad 117. This solution solves the problem in existing devices where the filter plate easily becomes clogged after long-term use, making it impossible to quickly disassemble and clean or replace the filter plate, thus affecting the pump flow rate.
[0022] In this embodiment, the chute 104 is connected to the filter box 101 and located on one side of the filter box 101. The filter plate 105 is slidably connected to the chute 104 and located inside the chute 104. The sewage discharge component 106 is connected to the filter box 101 and located outside the filter box 101. The sealing component 103 is connected to the chute 104 and located outside the chute 104. Two connecting pipes 107 are connected to the filter box 101 and located at both ends of the filter box 101. The flange 108 is connected to the connecting pipe 107 and located on one side of the connecting pipe 107. The connecting pipe 107 is provided at both ends of the filter box 101, with one end used for… The filter plate 105 is connected to the discharge port of the tower body and the other end is used to connect to the pump body. It is installed by connecting via the flange 108. The filter plate 105 is inserted into the inner side of the filter box 101 via the slide groove 104. The filter plate 105 is used to filter impurities. The filter plate 105 can be removed periodically for replacement or cleaning. The filter plate 105 is installed by sliding insertion, which is simple and efficient. The sealing member 103 prevents gas from overflowing from the slide groove 104 and affecting the processing environment. The sewage discharge member 106 can discharge impurities in the device during cleaning to prevent impurity accumulation. This solves the problem that the filter plate of the existing device is prone to clogging after long-term use, and the filter plate cannot be quickly disassembled for cleaning or replacement, which affects the pump flow rate.
[0023] The sealing component 103 includes a sealing cover 109 and a sealing ring 110. The sealing cover 109 is slidably connected to the slide groove 104 and is located on the outside of the slide groove 104. The sealing ring 110 is fixedly connected to the sealing cover 109 and is located at the bottom of the sealing cover 109. After the filter plate 105 is installed, the sealing cover 109 is slidably inserted into the outside of the slide groove 104 to cover the connection between the slide groove 104 and the outside of the filter box 101, preventing gas from escaping. The sealing ring 110 increases the airtightness of the sealing cover 109.
[0024] Secondly, the sewage discharge component 106 includes a drain pipe 111 and a control valve 112. The drain pipe 111 is connected to the filter box 101 and located on one side of the filter box 101. The control valve 112 is connected to the drain pipe 111 and located on one side of the drain pipe 111. The drain pipe 111 discharges impurities and sewage from inside the filter box 101 into the filter box 101. The control valve 112 is used to control the opening and closing of the drain pipe 111.
[0025] Furthermore, the filter assembly 102 also includes a handle 113 and casters 114. The handle 113 is fixedly connected to the filter plate 105 and is located on top of the filter plate 105. The casters 114 are rotatably connected to the filter box 101 and are located at the bottom of the filter box 101. The casters 114 reduce the friction between the device and the placement surface, facilitating the relocation of the device. The handle 113 provides a force point for picking up and placing the filter plate 105, making it convenient to pick up the filter plate 105.
[0026] Finally, the filter assembly 102 also includes a mounting plate 115, a threaded rod 116, and a support pad 117. The mounting plate 115 is fixedly connected to the filter box 101 and is located on the outside of the filter box 101. The threaded rod 116 is threadedly connected to the mounting plate 115 and is located on one side of the mounting plate 115. The support pad 117 is fixedly connected to the threaded rod 116 and is located at the bottom of the threaded rod 116. The mounting plate 115 provides an installation position for the threaded rod 116. Two mounting plates 115 are symmetrically arranged on the filter box 101, and two sets of threaded rods 116 are respectively provided on the two mounting plates 115. By adjusting the threaded rods 116, the support pad 117 is brought into contact with the placement surface to ensure the stability of the device during use and to prevent the universal wheel 114 from rotating.
[0027] In the impurity filter for a tower bottom pump using this utility model, both ends of the filter box 101 are provided with connecting pipes 107. One end is used to connect to the discharge port of the tower body, and the other end is used to connect to the pump body. The connection and installation are carried out through the flange 108. The filter plate 105 is inserted into the inner side of the filter box 101 through the sliding groove 104. The filter plate 105 is used to filter impurities. The filter plate 105 can be removed periodically for replacement or cleaning. The installation of the filter plate 105 by sliding insertion is simple and efficient. The sealing member 103 prevents gas from overflowing from the sliding groove 104 and affecting the processing environment. The sewage discharge member 106 can discharge impurities in the device during cleaning to prevent impurity accumulation. This solves the problem that the filter plate of the existing device is prone to clogging after long-term use, and the filter plate cannot be quickly disassembled for cleaning or replacement, which affects the pump flow rate.
[0028] The above-disclosed embodiment is merely a preferred embodiment of the impurity filter for a bottom pump of the present utility model. It should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A bottom pump impurity filter, comprising a filter box, characterized in that: It also includes a filter assembly, which includes a sealing member, a chute, a filter plate, a drain member, a connecting pipe, and a flange; The chute is connected to the filter box and located on one side of the filter box. The filter plate is slidably connected to the chute and located inside the chute. The sewage discharge component is connected to the filter box and located outside the filter box. The sealing component is connected to the chute and located outside the chute. The two connecting pipes are connected to the filter box and located at both ends of the filter box. The flange is connected to the connecting pipe and located on one side of the connecting pipe.
2. The impurity filter for a bottom pump as described in claim 1, characterized in that: The sealing component includes a sealing cap and a sealing ring. The sealing cap is slidably connected to the slide groove and is located outside the slide groove. The sealing ring is fixedly connected to the sealing cap and is located at the bottom of the sealing cap.
3. The impurity filter for a bottom pump as described in claim 1, characterized in that: The sewage discharge component includes a drain pipe and a control valve. The drain pipe is connected to the filter box and is located on one side of the filter box. The control valve is connected to the drain pipe and is located on one side of the drain pipe.
4. The impurity filter for a bottom pump as described in claim 1, characterized in that: The filter assembly also includes a handle and casters. The handle is fixedly connected to the filter plate and located on top of the filter plate. The casters are rotatably connected to the filter box and located at the bottom of the filter box.
5. The impurity filter for a bottom pump as described in claim 4, characterized in that: The filter assembly also includes a mounting plate, a threaded rod, and a support pad. The mounting plate is fixedly connected to the filter box and located on the outside of the filter box. The threaded rod is threadedly connected to the mounting plate and located on one side of the mounting plate. The support pad is fixedly connected to the threaded rod and located at the bottom of the threaded rod.
Citation Information
Patent Citations
Impurity filter for column bottom pump
CN202451421U