Backwash filtering system convenient for dismounting and mounting pressure transmitter

Abstract

The utility model belongs to the technical field of filter equipment, and relates to a backwashing filter system convenient for dismounting and mounting a pressure transmitter, which comprises a backwashing filter, the pressure transmitter and a medium outlet pipeline, the backwashing filter is used for filtering and purifying a medium; the medium outlet pipeline is communicated with the backwashing filter and is used for conveying the purified medium; the pressure transmitter is installed on a medium outlet pipeline and used for monitoring the pressure in the medium outlet pipeline. According to the utility model, the pressure transmitter is arranged on the medium outlet pipeline, so that the pressure transmitter is prevented from being directly connected with the backwash filter, an operator can directly carry out overhaul operation on the backwash filter, the pressure transmitter does not need to be disassembled in advance, the pressure transmitter is prevented from being damaged due to repeated disassembly and assembly, and the working efficiency is improved. And meanwhile, the backwash filter is convenient to disassemble and inspect, so that the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter equipment, in particular to a backwashing filter system which is convenient for disassembling and assembling a pressure transmitter. Background Art

[0002] The full-fraction hydroprocessing unit is a crucial piece of equipment in the petroleum refining process, primarily used to convert raw coal tar into high-quality oil products and chemical feedstocks through processes such as hydrocracking. The backwash filter is a crucial component of the full-fraction hydroprocessing unit's operation, responsible for purifying the raw coal tar. Its performance is directly related to the unit's continuous and efficient operation. As a crucial monitoring device for the backwash filter, the pressure transmitter monitors pressure changes within the filter in real time, providing operators with critical filter operating data to ensure the smooth operation of the filtration process.

[0003] There is some prior art research on backwash filters. Patent application number 201811241861.3 discloses a filter with a backwash device, comprising a vertically arranged cylinder, a cylinder cover provided on the cylinder in a sealed engagement therewith, a flange provided horizontally on the inner wall of the cylinder, an inlet pipe connected to the cylinder above the flange, and an outlet pipe connected to the cylinder below the flange. A filter basket is mounted on the flange within the cylinder, a flushing rotor for flushing the filter basket is vertically arranged within the filter basket, a bearing housing is vertically provided on the cylinder cover, and the flushing rotor is mounted within the bearing housing via bearings. A pressure transmitter is vertically mounted on the cylinder cover, and the pressure transmitter is threadedly mounted on the cylinder cover. It can be seen that the pressure transmitter is threadedly mounted on the cylinder cover, and detects pressure changes inside the backwash filter in real time, converting these changes into electrical signals for output, allowing operators to promptly monitor the operating status of the backwash filter and ensure the smooth progress of the filtration process.

[0004] However, during the feeding process of the full-fraction hydrogenation unit, the backwash filter is used frequently and needs to be disassembled and inspected regularly. Since the pressure transmitter is installed on the top cylinder cover of the backwash filter, the pressure transmitter must be removed first during each disassembly and inspection. After the inspection is completed, the pressure transmitter must be reinstalled, which increases the complexity of the operation for the operators. At the same time, the on-site operating environment is complex and changeable. The pressure transmitter is easily damaged during the high-frequency disassembly and assembly process, affecting the detection accuracy of the pressure transmitter, making it difficult to ensure the smooth progress of the filtration process. Utility Model Content

[0005] In order to solve the technical problem in the background technology that the pressure transmitter must be removed each time the backwash filter is disassembled and inspected, and the pressure transmitter is easily damaged during the high-frequency disassembly and assembly process, the utility model provides a backwash filter system that is easy to disassemble and assemble the pressure transmitter.

[0006] The utility model is convenient for disassembling and assembling the backwash filter system of the pressure transmitter. By installing the pressure transmitter on the medium outlet pipeline, direct connection between the pressure transmitter and the backwash filter is avoided. The operator can directly disassemble and inspect the backwash filter without removing the pressure transmitter in advance, thereby avoiding damage to the pressure transmitter due to multiple disassembly and assembly, thereby ensuring the detection accuracy of the pressure transmitter. At the same time, the backwash filter is easy to disassemble and inspect, thereby improving maintenance efficiency.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A backwash filtration system with an easily disassembled pressure transmitter comprises: a backwash filter, a medium outlet pipeline, and a pressure transmitter; the backwash filter is used to filter and purify the medium; the medium outlet pipeline is connected to the backwash filter and is used to transmit the purified medium; the pressure transmitter is installed on the medium outlet pipeline and is used to monitor the pressure in the medium outlet pipeline.

[0009] In a specific embodiment, the backwash filter includes a cylinder and an upper cover; the upper cover is placed on the top of the cylinder; and the medium outlet pipeline is connected to the upper cover.

[0010] In a specific embodiment, the pressure transmitter is connected to the medium outlet pipeline through a connecting pipe.

[0011] In a specific implementation manner, a first regulating valve is installed on the connecting pipeline.

[0012] In a specific possible implementation scheme, a sealing gasket is provided at the connection between the pressure transmitter and the connecting pipe.

[0013] In a specific possible implementation scheme, the end of the medium outlet pipeline is connected to a first flange, and the outlet of the upper cover is connected to a second flange; the first flange and the second flange match each other.

[0014] In a specific possible implementation scheme, the backwash filtration system with easy-to-disassemble pressure transmitter further includes a main regulating component, and the main regulating component includes an outlet shut-off valve; the outlet shut-off valve is installed on the medium outlet pipeline.

[0015] In a specific possible implementation scheme, the main regulating assembly further includes a second regulating valve; the second regulating valve is installed on the medium outlet pipeline of the outlet cut-off valve close to the side of the cylinder.

[0016] In a specific possible implementation scheme, the main regulating assembly further includes a third regulating valve; the third regulating valve is installed on the medium outlet pipeline on the side of the outlet cut-off valve away from the cylinder.

[0017] In a specific feasible implementation scheme, the backwash filtration system for facilitating disassembly and assembly of the pressure transmitter further comprises a bypass regulating assembly, the bypass regulating assembly comprising a bypass pipeline and a fourth regulating valve; the bypass pipeline is arranged in parallel with the medium outlet pipeline; the fourth regulating valve is installed on the bypass pipeline.

[0018] In summary, the present invention has the following beneficial technical effects:

[0019] 1. The utility model is convenient for disassembling and assembling the backwash filter system of the pressure transmitter. By installing the pressure transmitter on the medium outlet pipeline, the pressure transmitter is avoided from being directly connected to the backwash filter. The operator can directly disassemble and inspect the backwash filter without removing the pressure transmitter in advance, thereby avoiding damage to the pressure transmitter due to multiple disassembly and assembly, thereby ensuring the detection accuracy of the pressure transmitter. At the same time, the backwash filter is easy to disassemble and inspect, thereby improving maintenance efficiency.

[0020] 2. The utility model facilitates the disassembly and assembly of the backwash filtration system of the pressure transmitter. The main regulating component and the bypass regulating component are provided, one for backup and the other for use. When the main regulating component fails or an emergency occurs, the medium can bypass the bypass pipeline and enter the next process, thereby ensuring the normal operation of the backwash filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the backwashing filter system which is convenient for disassembling and assembling the pressure transmitter.

[0022] Explanation of the accompanying symbols: 1. Medium outlet pipeline; 2. Cylinder; 3. Upper cover; 4. Pressure transmitter; 5. Connecting pipe; 6. First regulating valve; 7. First flange; 8. Second flange; 9. Outlet shut-off valve; 10. Second regulating valve; 11. Third regulating valve; 12. Bypass pipeline; 13. Fourth regulating valve. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further explained below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the embodiments described below.

[0024] Reference Figure 1 A backwash filtration system with easily removable pressure transmitters includes a backwash filter, a medium outlet pipeline 1, and a pressure transmitter 4. The backwash filter is used to filter and purify the medium; the medium outlet pipeline 1 is connected to the backwash filter and is used to transmit the purified medium; and the pressure transmitter 4 is installed on the medium outlet pipeline 1 to monitor the pressure within the medium outlet pipeline 1.

[0025] Specifically, in the present invention, the pressure transmitter 4 is a diaphragm-type pressure transmitter 4 .

[0026] Reference Figure 1 The backwash filter includes a cylinder 2 and an upper cover 3. The upper cover 3 is placed on the top of the cylinder 2; the medium outlet pipeline 1 is connected to the upper cover 3.

[0027] Reference Figure 1 The end of the medium outlet pipeline 1 is connected to a first flange 7, and the outlet of the upper cover 3 is connected to a second flange 8; the first flange 7 and the second flange 8 match each other.

[0028] Specifically, a feed port is provided on the side wall of the cylinder 2, and the medium flows in from the feed port; the upper cover 3 is connected to a discharge pipe, and the second flange 8 is connected to the end of the discharge pipe, and the medium flows out from the discharge pipe.

[0029] In the present invention, the medium outlet pipeline 1 is connected to the backwash filter by the first flange 7 and the second flange 8, which makes it easy for operators to separately disassemble and inspect related components on the medium outlet pipeline 1 or the backwash filter, thereby improving maintenance efficiency.

[0030] Reference Figure 1 The pressure transmitter 4 is connected to the medium outlet pipeline 1 through the connecting pipe 5. A first regulating valve 6 is installed on the connecting pipe 5.

[0031] Specifically, the diaphragm-type pressure transmitter 4 is connected to the connecting pipe 5 via a flange.

[0032] In the present invention, the first regulating valve 6 is provided to facilitate regulating the pressure entering the pressure transmitter 4 , ensuring that the pressure transmitter 4 operates within a safe pressure range, and improving the measurement accuracy and stability of the pressure transmitter 4 .

[0033] Example 1:

[0034] Reference Figure 1 This embodiment facilitates the disassembly and assembly of the backwash filtration system of the pressure transmitter, and a sealing gasket is provided at the connection between the pressure transmitter 4 and the connecting pipe 5.

[0035] Specifically, in this embodiment, the sealing gasket can be a metal gasket or a rubber gasket. By providing the sealing gasket, the sealing between the pressure transmitter 4 and the connecting pipe 5 is ensured. Such sealing gaskets can be used. Preferably, the sealing gasket is a metal gasket.

[0036] In this embodiment, the provided sealing gasket ensures the sealing between the pressure transmitter 4 and the connecting pipe 5, thereby improving the overall sealing performance of the backwash filtration system.

[0037] Example 2:

[0038] Reference Figure 1This embodiment facilitates the disassembly and assembly of a backwash filter system for a pressure transmitter. Based on the first embodiment, the backwash filter system for facilitating the disassembly and assembly of a pressure transmitter further includes a main regulating assembly, which includes an outlet shut-off valve 9. The outlet shut-off valve 9 is installed on the medium outlet pipeline 1.

[0039] In this embodiment, the outlet shut-off valve 9 is provided to facilitate timely cutting off the flow of the medium in the medium outlet pipeline 1, thereby protecting the safety of subsequent equipment and operators, and at the same time, facilitating the maintenance of the backwash filtration system.

[0040] Example 3:

[0041] Reference Figure 1 This embodiment facilitates the disassembly and assembly of the backwash filtration system of the pressure transmitter. Based on Example 2, the main regulating component also includes a second regulating valve 10; the second regulating valve 10 is installed on the medium outlet pipeline 1 on the side of the outlet cut-off valve 9 close to the cylinder 2.

[0042] In this embodiment, by adjusting the opening of the second regulating valve 10 , the medium flow in the medium outlet pipeline 1 can be accurately adjusted to meet different operational requirements.

[0043] Example 4:

[0044] Reference Figure 1 This embodiment facilitates the disassembly and assembly of the backwash filtration system of the pressure transmitter. Based on Example 3, the main regulating component also includes a third regulating valve 11; the third regulating valve 11 is installed on the medium outlet pipeline 1 on the side of the outlet cut-off valve 9 away from the cylinder 2.

[0045] In this embodiment, the third regulating valve 11 is provided to cooperate with the second regulating valve 10 to facilitate more precise control of the medium flow in the medium outlet pipeline 1 and further adapt to different operation requirements.

[0046] Example 5:

[0047] Reference Figure 1 This embodiment facilitates the disassembly and assembly of a backwash filter system for a pressure transmitter. Based on Example 4, the backwash filter system for facilitating the disassembly and assembly of a pressure transmitter further includes a bypass regulating assembly, which includes a bypass pipeline 12 and a fourth regulating valve 13. The bypass pipeline 12 is arranged in parallel with the medium outlet pipeline 1; the fourth regulating valve 13 is installed on the bypass pipeline 12.

[0048] In this embodiment, the bypass line 12 and the fourth regulating valve 13 are provided. When the main regulating component fails or an emergency occurs, the medium can bypass to the next process through the bypass line 12 to ensure the normal operation of the backwash filtration system.

[0049] The working principle of the backwash filter system of the utility model with an easy-to-disassemble pressure transmitter is as follows: in normal working state, the medium is filtered and purified through the cylinder 2 of the backwash filter, and the purified medium flows out through the medium outlet pipeline 1; the pressure transmitter 4 monitors the pressure in the medium outlet pipeline 1 in real time to ensure the stable operation of the backwash filter system.

[0050] When the backwash filter needs to be disassembled for inspection, first close the outlet shut-off valve 9 to cut off the flow of medium in the medium outlet pipeline 1; then remove the first flange 7 and the second flange 8 to separate the medium outlet pipeline 1 from the backwash filter, so as to facilitate the inspection and maintenance of the backwash filter or related components on the medium outlet pipeline 1 separately; after the inspection and maintenance is completed, reinstall the first flange 7 and the second flange 8, open the outlet shut-off valve 9, and the backwash filtration system resumes normal operation.

[0051] The preferred embodiments of the present invention are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A backwash filtration system that is easy to disassemble and assemble a pressure transmitter, characterized in that: include: Backwash filter, used to filter and purify the medium; a medium outlet pipeline (1), the medium outlet pipeline (1) being in communication with the backwash filter and being used for transmitting the purified medium; and a pressure transmitter (4), which is installed on the medium outlet pipeline (1) and is used to monitor the pressure in the medium outlet pipeline (1).

2. The backwash filtration system for easily disassembling a pressure transmitter according to claim 1 is characterized in that: The backwash filter comprises a cylinder (2) and an upper cover (3); The upper cover (3) is placed on the top of the cylinder (2); The medium outlet pipeline (1) is connected to the upper cover (3).

3. The backwash filtration system for easily disassembling a pressure transmitter according to claim 1 is characterized in that: The pressure transmitter (4) is connected to the medium outlet pipeline (1) via a connecting pipe (5).

4. The backwash filtration system for easily disassembling a pressure transmitter according to claim 3 is characterized in that: A first regulating valve (6) is installed on the connecting pipe (5).

5. The backwash filtration system for easily disassembling a pressure transmitter according to claim 4 is characterized in that: A sealing gasket is provided at the connection between the pressure transmitter (4) and the connecting pipe (5).

6. The backwash filtration system for easily disassembling a pressure transmitter according to claim 2, characterized in that: The end of the medium outlet pipeline (1) is connected to a first flange (7), and the outlet of the upper cover (3) is connected to a second flange (8); The first flange (7) and the second flange (8) match each other.

7. The backwash filtration system for easily disassembling a pressure transmitter according to any one of claims 2 to 6, characterized in that: The backwash filtration system for facilitating the disassembly and assembly of the pressure transmitter further comprises a main regulating component, wherein the main regulating component comprises an outlet shut-off valve (9); The outlet shut-off valve (9) is installed on the medium outlet pipeline (1).

8. The backwash filtration system for easily disassembling a pressure transmitter according to claim 7, characterized in that: The main regulating assembly further includes a second regulating valve (10); The second regulating valve (10) is installed on the medium outlet pipeline (1) on the side of the outlet cut-off valve (9) close to the cylinder (2).

9. The backwash filtration system for easily disassembling a pressure transmitter according to claim 8, characterized in that: The main regulating assembly further includes a third regulating valve (11); The third regulating valve (11) is installed on the medium outlet pipeline (1) on the side of the outlet cut-off valve (9) away from the cylinder (2).

10. The backwash filtration system for easily disassembling a pressure transmitter according to claim 9, characterized in that: The backwash filtration system for easily disassembling and assembling a pressure transmitter further comprises a bypass regulating assembly, wherein the bypass regulating assembly comprises a bypass pipeline (12) and a fourth regulating valve (13); The bypass pipeline (12) is arranged in parallel with the medium outlet pipeline (1); The fourth regulating valve (13) is installed on the bypass line (12).

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