A pipe filter sealing cap with pressure relief and flow diversion function

Abstract

This utility model relates to the field of pipeline filtration equipment technology, and in particular to a pipeline filter sealing cover with pressure relief and flow guiding function. It includes a sealing cover body and a pressure relief and flow guiding port, which is fixedly connected to the center of the sealing cover body for directional and centralized discharge of pressure relief medium. A rotary joint has a threaded connection at its output end to a flow guiding pipe, which is used to flexibly adjust the direction of the flow guiding pipe to adapt to different working conditions. Compared with traditional pipeline filter sealing covers, this utility model achieves directional and centralized discharge of pressure relief medium through the pressure relief and flow guiding port, effectively reducing media splashing by more than 99% and significantly reducing the risk of pollution to the working environment. The rotary joint allows for flexible adjustment of the flow guiding pipe, enabling multi-angle and multi-directional rotation to adapt to different discharge directions and positions, thus expanding the applicability of the sealing cover pressure relief system.

Description

Technical Field

[0001] This utility model relates to the field of pipeline filtration equipment technology, and in particular to a pipeline filter sealing cover with pressure relief and flow guiding function. Background Technology

[0002] Y-type pipeline filters are key equipment in industrial production and fluid processing systems. Their core function is to filter and remove impurities and particulate matter from fluids, ensuring the stable operation of downstream process equipment and the cleanliness of the fluid medium. During long-term operation, regular maintenance is a necessary step to maintain filtration efficiency. This mainly includes filter element replacement and cleaning of impurities inside the filter. Such maintenance requires opening the filter's sealing cover. To ensure operational safety, the inside of the filter must be depressurized and diverted before opening the cover.

[0003] However, existing Y-type filter sealing cap structures have several problems in practical applications: First, during pressure relief, due to the lack of effective directional restraint and buffering structures, the medium often discharges in a radial splashing manner. This irregular splashing not only contaminates the ground and equipment surfaces in the work area, increasing subsequent cleaning costs, but also may cause personal injury to on-site operators. Furthermore, it may damage surrounding precision instruments or electrical equipment, creating a double hazard of equipment failure and safety accidents. Second, the flow guiding components of existing sealing caps mostly adopt an integrated fixed design. During core maintenance operations such as filter element replacement or internal cleaning, the flow guiding components need to be... Complete disassembly is a cumbersome and time-consuming process that significantly reduces equipment maintenance efficiency. Furthermore, repeated disassembly and installation can easily cause scratches or impacts to the sealing surfaces of the sealing cover and valve body, further exacerbating subsequent sealing problems. Thirdly, the existing flow guiding structure of the sealing cover is mostly designed in a fixed direction, lacking flexible adjustment functions. It cannot adjust the direction of medium discharge according to the actual needs of the on-site working environment (such as the layout of surrounding key equipment, the location of sewage outlets, etc.). This fixed design can easily lead to the pressure relief and discharge of medium directly flushing or contaminating surrounding key production equipment, affecting the stable operation of the entire production system and increasing equipment maintenance and replacement costs.

[0004] Therefore, to address the aforementioned issues, a pipeline filter sealing cover with pressure relief and flow diversion function can be designed. By setting a pressure relief and flow diversion port, the originally radially sprayed pressure relief medium is transformed into a directional and centralized discharge. The flow diversion pipe can be flexibly adjusted using a rotary joint to meet the discharge requirements under different working conditions and enhance the adaptability of the sealing cover. Utility Model Content

[0005] To overcome the problems that most pipeline filter sealing covers lack restraint and buffer structures when depressurizing, resulting in the depressurized medium splashing in a disorderly radial manner, which not only pollutes the surrounding environment but also leads to media waste, and the flow guide pipe is a fixed structure that cannot achieve multi-angle adjustment, resulting in poor adaptability to different scenarios.

[0006] The technical solution of this utility model is: a pipeline filter sealing cover with pressure relief and flow diversion function, including a sealing cover body, and further comprising: The pressure relief outlet is fixedly connected to the center of the sealing cover body and is used for the directional and centralized discharge of pressure relief medium. The rotary joint has a threaded connection to a guide tube at its output end. The rotary joint is used to flexibly adjust the direction of the guide tube to adapt to different working conditions.

[0007] Preferably, the pressure relief outlet is threadedly connected to a manual ball valve, and the input end of the rotary joint is threadedly connected to the output end of the manual ball valve.

[0008] Preferably, a spiral guide vane is fixedly connected to the inner wall of the sealing cover body, which is used to disperse and release fluid pressure.

[0009] Preferably, a one-way pressure relief valve is installed inside the pressure relief port near the input end for dynamically sealing the pressure relief port.

[0010] As a preferred embodiment, the manual ball valve includes a valve body and a handle. The input end of the valve body is threadedly connected to a pressure relief port, and the valve body is opened and closed by rotating the handle.

[0011] Preferably, the rotary joint includes an inner rotating sleeve and an outer fixed sleeve arranged coaxially, the output end of the manual ball valve is threadedly connected to the outer fixed sleeve, and the inner rotating sleeve is rotatably connected inside the outer fixed sleeve.

[0012] Preferably, the outer edge of the sealing cover body is provided with a sealing surface, which is used to seal the flange face of the pipeline filter.

[0013] The beneficial effects of this utility model are: 1. Compared with traditional pipeline filter sealing caps, the pressure relief guide port enables the pressure relief medium to be transformed from disordered discharge to directional centralized discharge, effectively reducing media splashing by more than 99% and significantly reducing the risk of pollution in the working environment. The rotary joint allows for flexible adjustment of the guide pipe, enabling the guide pipe to rotate at multiple angles and directions, adapting to different discharge directions and locations, and expanding the applicability of the sealing cap pressure relief system. 2. Add spiral guide vanes to integrate the flow guiding function into the sealing cover skeleton. The simple structure effectively reduces the instantaneous impact force during pressure relief, avoids damage to the pressure relief guide port caused by long-term impact of the pressure relief medium, and reduces service life. The traditional sealing ring is replaced with a one-way pressure relief valve, which improves the sealing reliability by utilizing its self-resetting ability, and realizes the integration of sealing and pressure relief. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of a pipe filter sealing cover with pressure relief and flow diversion function according to this utility model. Figure 2 The image shown is an exploded view of a pipe filter sealing cap with pressure relief and flow diversion function according to this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the spiral guide vane of a pipe filter sealing cap with pressure relief and flow guiding function according to this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of a one-way pressure relief valve of a pipeline filter sealing cap with pressure relief and flow diversion function according to this utility model.

[0015] Figure 5 The diagram shown is a three-dimensional structural schematic of a rotary joint for a pipe filter sealing cap with pressure relief and flow guiding function according to this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Sealing cover body; 101. Sealing surface; 102. Spiral guide vane; 2. Pressure relief guide port; 201. One-way pressure relief valve; 3. Valve body; 301. Handle; 4. Guide tube; 5. Inner rotating sleeve; 501. Outer fixed sleeve. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figures 1-5 This utility model provides an embodiment: a pipeline filter sealing cover with pressure relief and flow guiding function, including a sealing cover body 1, a pressure relief and flow guiding port 2, a rotary joint, a manual ball valve, and a flow guiding pipe 4. The pressure relief and flow guiding port 2 is fixedly connected to the center of the sealing cover body 1. The pressure relief and flow guiding port 2 is used for directional and centralized discharge of pressure relief medium. The output end of the pressure relief and flow guiding port 2 is threadedly connected to the manual ball valve. The input end of the rotary joint is installed at the output end of the manual ball valve, and the output end is threadedly connected to the flow guiding pipe 4. The rotary joint is used to flexibly adjust the direction of the flow guiding pipe 4 to adapt to different working conditions.

[0019] In this embodiment, the sealing cover body 1 is disc-shaped and made of stainless steel. Its outer edge is provided with a sealing surface 101. The sealing surface 101 is used to seal the flange face of the pipeline filter to prevent fluid from leaking from the connection between the sealing cover and the filter, and to ensure the system's airtightness.

[0020] In this embodiment, a spiral guide vane 102 is fixedly connected to the inner wall of the sealing cover body 1. The spiral guide vane 102 is used to disperse the released fluid and reduce the impact force. During normal filtration, the fluid passes through the spiral guide vane 102 and is forced to rotate downward along the spiral guide vane 102 to form a uniform vortex that wraps around the entire outer side of the filter element, making the flow velocity distribution uniform and reducing local blockage. When depressurization is performed, the fluid flows from the inside of the filter outward through the spiral guide vane 102. The rotational motion changes the direction and speed of fluid flow, breaks up large gas-liquid masses, and reduces the impact on the depressurization pipeline.

[0021] In this embodiment, the pressure relief port 2 adopts a straight pipe joint structure with a bore diameter of 25±0.5mm. It is made of stainless steel, which has good corrosion resistance and mechanical strength, and can work stably in industrial environments. A one-way pressure relief valve 201 is installed inside the pressure relief port 2 near the input end for dynamic sealing of the pressure relief port. The one-way pressure relief valve 201 is made of neoprene rubber or ethylene propylene rubber with an internal nylon fiber reinforcement layer, which has corrosion resistance. Under normal operation, the one-way pressure relief valve 201 is tightly closed to prevent fluid leakage. When pressure is released, the fluid passes through the pressure relief port 2 to open the closed one-way pressure relief valve 201. After pressure is released, it automatically resets, resulting in higher sealing reliability.

[0022] In this embodiment, the manual ball valve includes a valve body 3 and a handle 301. The input end of the valve body 3 is threadedly connected to a pressure relief guide port 2. The valve body 3 is controlled to open and close by rotating the handle 301. An open / closed status indicator is provided on the outside of the handle 301 to facilitate the operator to quickly judge the valve status.

[0023] In this embodiment, the rotary joint includes an inner rotating sleeve 5 and an outer fixed sleeve 501 arranged coaxially. The output end of the manual ball valve is threadedly connected to the outer fixed sleeve 501, and the inner rotating sleeve 5 is rotatably connected inside the outer fixed sleeve 501. The rotary joint is made of stainless steel. The inner rotating sleeve 5 rotates inside the outer fixed sleeve 501 through a bearing. The high-precision coaxial design ensures the smooth operation of the rotary joint during work. An independent sealing groove is provided between the sleeves, and a fluororubber O-ring is installed in the sealing groove. The sealing ring utilizes the characteristics of high temperature resistance and corrosion resistance to achieve a good sealing effect under different working conditions.

[0024] According to the needs of the on-site installation environment, the operator can flexibly adjust the direction and angle of the guide pipe 4 by rotating the inner rotating sleeve 5 inside the outer fixed sleeve 501, so as to facilitate the delivery of the pressure relief medium to the designated location. When the pipeline system is operating normally, the manual ball valve is in the closed state. The fluid passes through the sealing cover body 1 and spirals downward along the spiral guide vane 102 to form a vortex. It enters the pressure relief guide port 2 and is blocked by the one-way pressure relief valve 201. It then returns to the pipeline and wraps the outside of the filter element. When depressurizing the pipeline, open the manual ball valve and manually turn the handle 301 according to the indicator to rotate the valve body 3. The depressurization flow can be controlled by the manual ball valve. The depressurization medium passes through the spiral guide vane 102 inside the sealing cover body 1, breaks up large gas-liquid masses, and flows into the depressurization guide port 2. The depressurization medium uses overpressure to open the one-way depressurization valve 201, enters the inner rotating sleeve 5 through the manual ball valve, and is discharged from the guide pipe 4.

[0025] Through the above steps, compared with the traditional pipeline filter sealing cover, the pressure relief guide port 2 transforms the disordered discharge of the pressure relief medium into a directional and centralized discharge, effectively reducing media splashing by more than 99% and significantly reducing the risk of pollution to the working environment. The rotary joint allows for flexible adjustment of the guide pipe 4, enabling it to rotate at multiple angles and directions to adapt to different discharge directions and locations, thus expanding the applicability of the sealing cover pressure relief system. The addition of a spiral guide vane 102 integrates the guiding function into the sealing cover frame, effectively reducing the instantaneous impact force during pressure relief with a simple structure, preventing damage to the pressure relief guide port 2 from long-term impact by the pressure relief medium and reducing its service life. The traditional sealing ring is replaced with a one-way pressure relief valve 201, which improves sealing reliability by utilizing its self-resetting ability, achieving integrated sealing and pressure relief.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pipe filter sealing cap with pressure relief and flow diversion function, comprising a sealing cap body (1), characterized in that, Also includes: The pressure relief outlet (2) is fixedly connected to the center of the sealing cover body (1) and is used for directional and centralized discharge of pressure relief medium; The rotary joint has a threaded connection at its output end to a guide tube (4). The rotary joint is used to flexibly adjust the direction of the guide tube (4) to adapt to different working conditions.

2. The pipe filter sealing cap with pressure relief and flow diversion function according to claim 1, characterized in that: The pressure relief guide port (2) has a threaded connection to a manual ball valve at the output end, and the rotary joint has a threaded connection to the output end of a manual ball valve at the input end.

3. The pipe filter sealing cap with pressure relief and flow guiding function according to claim 1, characterized in that: The inner wall of the sealing cap body (1) is fixedly connected with a spiral guide vane (102), which is used to disperse and release fluid pressure.

4. The pipe filter sealing cover with pressure relief and flow diversion function according to claim 1, characterized in that: The pressure relief port (2) has a one-way pressure relief valve (201) installed inside near the input end for dynamically sealing the pressure relief port.

5. The pipe filter sealing cover with pressure relief and flow guiding function according to claim 2, characterized in that: The manual ball valve includes a valve body (3) and a handle (301). The input end of the valve body (3) is threadedly connected to a pressure relief guide port (2). The valve body (3) is controlled to open and close by rotating the handle (301).

6. The pipe filter sealing cap with pressure relief and flow diversion function according to claim 2, characterized in that: The rotary joint includes an inner rotating sleeve (5) and an outer fixed sleeve (501) arranged coaxially. The output end of the manual ball valve is threadedly connected to the outer fixed sleeve (501), and the inner rotating sleeve (5) is rotatably connected inside the outer fixed sleeve (501).

7. The pipe filter sealing cover with pressure relief and flow diversion function according to claim 1, characterized in that: The outer edge of the sealing cover body (1) is provided with a sealing surface (101), which is used to seal the flange face of the pipeline filter.

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