External circulating pipeline filter screen
By designing an external circulation pipe filter, the problems of large installation space, inconvenient disassembly and inaccurate blockage detection in the existing technology are solved, convenient disassembly and assembly and real-time blockage monitoring are achieved, and the detection accuracy of the system is improved.
Patent Information
- Application Number
- CN202420073293.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The existing desulfurization tower circulation pipeline filter has large installation space, is prone to deformation, is inconvenient to disassemble and assembly, and is difficult to monitor the blockage, resulting in inaccurate detection.
An external circulation pipe filter is designed, using independent filter pipes and a round table-shaped filter structure, which adds convenient disassembly and assembly and cleaning operations, and monitors the blockage state in real time through the pressure difference detection port.
It reduces the difficulty of disassembly and assembles the filter, reduces the probability of blockage, and realizes real-time monitoring and timely replacement of the filter clogged state, improving the detection accuracy of the system.
Smart Images
Figure CN222173368U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of desulfurization tower structures, and in particular relates to an external circulating pipeline filter screen. Background Art
[0002] At present, in the wet flue gas desulfurization process, a filter is generally added to the desulfurization tower to filter impurities in the slurry and avoid nozzle clogging. The external filter of the conventional desulfurization tower circulation pipeline adopts a box type, which is installed on the inlet pipe of the circulation pump, and a reducer is required to connect it to the circulation pipe. The box filter is large in size and requires a large installation space. The shell is easy to deform and the rubber lining is easy to fall off. On the other hand, the filter will be blocked after a certain period of use. The existing box filter is inconvenient to disassemble and assemble, and it is difficult to clean the filter. It is difficult for the system to monitor whether the filter is blocked. The filter status can only be indirectly understood through the liquid output of the circulation pipe, and there is a problem of inaccurate detection. Utility Model Content
[0003] In view of the above-mentioned technical problems, the utility model provides an external circulating pipe filter to solve the problems of inconvenient cleaning and difficulty in detecting blockage in the existing desulfurization tower circulating pipe filtering device. The external circulating pipe filter is easy to disassemble and assemble, and can effectively understand the blockage status of the filter.
[0004] The utility model discloses an external circulating pipe filter, comprising a front-end pipe, a filter pipe, a filter and a rear-end pipe, wherein a first flange is arranged at the rear end of the front-end pipe, a second flange and a third flange are arranged at both ends of the filter pipe, a fourth flange is arranged at the front end of the rear-end pipe, the first flange and the second flange are bolted together, the third flange and the fourth flange are bolted together, the filter is a truncated cone structure, a bottom opening with a larger area of the filter is arranged, an edge of the bottom surface with a larger area of the filter is clamped between the first flange and the second flange, and a bottom surface with a smaller area of the filter is detachably fixed to the inner wall of the filter pipe, a first differential pressure detection port is arranged on the front-end pipe, and a second differential pressure detection port is arranged on the filter pipe.
[0005] Furthermore, a sewage outlet is provided below the filter pipe, and an inspection port is provided above the filter pipe.
[0006] Furthermore, a lug is provided on the inner wall of the filter pipe close to the third flange, and the bottom surface of the filter screen with a smaller area is bolted to the lug.
[0007] Furthermore, it also includes a pressure difference detection device, and the pressure difference detection device is connected to the first pressure difference detection port and the second pressure difference detection port respectively.
[0008] The external circulating pipe filter is provided with an independent filter pipe, and the filter is built into the filter pipe, which occupies a small space. The filter can be replaced and cleaned by disassembling and assembling the filter pipe, thereby reducing the difficulty of disassembling and assembling the filter. The filter with a truncated cone structure can increase the filtration area and reduce the probability of clogging. At the same time, in order to detect the clogging of the filter, a first pressure difference detection port and a second pressure difference detection port are provided, so that the clogging state of the filter can be monitored in real time by detecting the pressure difference before and after the filter, and the filter can be replaced even if the filter is found to be clogged. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0010] Figure 1 The figure is a schematic diagram of the structure of an external circulating pipe filter. DETAILED DESCRIPTION
[0011] The utility model discloses an external circulating pipeline filter screen, which is easy to disassemble and assemble and can effectively understand the blocking state of the filter screen.
[0012] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0013] See also Figure 1As shown, the utility model discloses an external circulating pipe filter, comprising a front-end pipe 13, a filter pipe 10, a filter screen 12 and a rear-end pipe 8, the rear end of the front-end pipe 13 is provided with a first flange 2, the two ends of the filter pipe 10 are provided with a second flange 3 and a third flange 6, the front end of the rear-end pipe 8 is provided with a fourth flange 7, the first flange 2 and the second flange 3 are bolted together, the third flange 6 and the fourth flange 7 are bolted together, the filter screen 12 is a truncated cone structure, the bottom surface of the filter screen 12 with a larger area is opened, the edge of the bottom surface of the filter screen 12 with a larger area is clamped between the first flange 2 and the second flange 3, the bottom surface of the filter screen 12 with a smaller area is detachably fixed to the inner wall of the filter pipe 10, the front-end pipe 13 is provided with a first differential pressure detection port 1, and the filter pipe 10 is provided with a second differential pressure detection port 5.
[0014] A sewage outlet 11 is provided at the bottom of the filter pipe 10 , and an inspection port 4 is provided at the top of the filter pipe 10 .
[0015] The inner wall of the filter pipe 10 close to the third flange 6 is provided with a support ear 9 , and the bottom surface of the filter screen 12 with a smaller area is bolted to the support ear 9 .
[0016] It also includes a pressure difference detection device, which is connected to the first pressure difference detection port 1 and the second pressure difference detection port 5 respectively.
[0017] The external circulating pipe filter is provided with an independent filter pipe 10, and the filter 12 is built into the filter pipe 10, occupying a small space. The filter 12 can be replaced and cleaned by disassembling and assembling the filter pipe 10, thereby reducing the difficulty of disassembling and assembling the filter 12. The filter 12 with a truncated cone structure can increase the filtration area and reduce the probability of clogging. At the same time, in order to detect the clogging of the filter 12, a first pressure difference detection port 1 and a second pressure difference detection port 5 are provided, so that the clogging state of the filter 12 can be monitored in real time by detecting the pressure difference before and after the filter 12, and the filter 12 can be replaced even if the clogging is found.
[0018] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.
Claims
1. An external circulating pipe filter, characterized in that: It includes a front-end pipeline, a filter pipeline, a filter screen and a rear-end pipeline, wherein a first flange is arranged at the rear end of the front-end pipeline, a second flange and a third flange are arranged at both ends of the filter pipeline, a fourth flange is arranged at the front end of the rear-end pipeline, the first flange and the second flange are bolted together, the third flange and the fourth flange are bolted together, the filter screen is a truncated cone structure, the bottom surface of the filter screen with a larger area is opened, the edge of the bottom surface of the filter screen with a larger area is clamped between the first flange and the second flange, the bottom surface of the filter screen with a smaller area is detachably fixed to the inner wall of the filter pipeline, a first differential pressure detection port is opened on the front-end pipeline, and a second differential pressure detection port is opened on the filter pipeline.
2. The external circulating pipe filter according to claim 1, characterized in that: A sewage outlet is provided below the filter pipe, and an inspection port is provided above the filter pipe.
3. The external circulating pipe filter according to claim 1, characterized in that: The inner wall of the filter pipe close to the third flange is provided with a support ear, and the bottom surface of the filter screen with a smaller area is bolted to the support ear.
4. The external circulating pipe filter according to claim 1, characterized in that: It also includes a pressure difference detection device, which is connected to the first pressure difference detection port and the second pressure difference detection port respectively.