A safety valve for chemical storage tanks with filtering function

Abstract

The utility model relates to the technical field of safety valves, and in particular to a safety valve for a chemical storage tank with a filtering function, comprising two flanges, a valve body and two fixing mechanisms, wherein the valve body is provided with an inlet pipe, an outlet pipe and a sealing pipe, a filtering mechanism is provided in the inlet pipe, a sealing mechanism is provided in the sealing pipe, the two flanges are respectively provided on the inlet pipe and the outlet pipe, the fixing mechanism is provided on the flange, the fixing mechanism comprises a semicircular fixing ring, a plurality of spring members and a connecting ring, the spring member comprises a limiting piece, a sliding rod and an extrusion spring, and by providing the semicircular fixing ring, the flange on the pipeline can be clamped and fixed under the action of the spring member, thereby no human support is required and the safety valve is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a safety valve for chemical storage tanks with a filtering function. Background Art

[0002] A safety valve is a special valve that is normally closed under the action of external force. When the medium pressure in the equipment or pipeline exceeds the specified value, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. The safety valve belongs to the automatic valve category and is mainly used in boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value. It plays an important protective role in personal safety and equipment operation. Note that the safety valve must undergo a pressure test before it can be used. When a chemical storage tank is used, a safety valve is often required to be installed on the pipeline. However, the existing safety valve does not have a filtering function and cannot filter the impurities flowing in the pipeline, which can easily cause impurities to block the safety valve. Therefore, there is room for improvement.

[0003] The prior art patent CN216768389U discloses a safety valve for a chemical storage tank with a filtering function, comprising a valve body, a sealing cover connected to the top of the valve body by bolts, and a flow control mechanism is arranged on the bottom outer wall of the sealing cover, a pull-out opening is arranged at the bottom of the valve body, a filtering mechanism is slidably connected to the inner wall of the pull-out opening, the filtering mechanism comprises a pull plate, a filter frame is arranged on the top of the pull plate, a filter screen is arranged on the inner wall of the filter frame, and the filter screen is located inside the valve body; when the filter screen is clogged after long-term filtration, the filter screen can be pulled out for cleaning by the pull plate, the filtering effect on impurities is better, the safety valve will not be clogged by impurities, and the use effect of the safety valve is improved.

[0004] However, in the above-mentioned prior art, since the flange cannot be supported on the pipeline during installation, manpower is required to support the entire valve body, and it is very easy for the flange to fall during the installation process, thereby causing damage to the valve body. Summary of the invention

[0005] The utility model aims to provide a safety valve for chemical storage tanks with a filtering function, aiming to solve the technical problems in the prior art that the flange cannot be supported on the pipeline during installation, thus requiring manpower to support the entire valve body, and is very likely to fall during the installation process, thereby causing damage to the valve body.

[0006] To achieve the above-mentioned purpose, the utility model adopts a safety valve with a filtering function for a chemical storage tank, comprising two flanges, a valve body and two fixing mechanisms, the valve body being provided with an inlet pipe, an outlet pipe and a sealing pipe, the inlet pipe being provided with a filtering mechanism, the sealing pipe being provided with a sealing mechanism, the two flanges being respectively provided on the inlet pipe and the outlet pipe, the fixing mechanism being provided on the flange, the fixing mechanism comprising a semicircular fixing ring, a plurality of spring members and a connecting ring, the spring member comprising a limiting plate, a sliding rod and an extrusion spring, the semicircular fixing ring being fixedly connected to the sliding rod and being located at one end of the sliding rod, the limiting plate being fixedly connected to the sliding rod and being located at the other end of the sliding rod, the sliding rod being slidably connected to the connecting ring and penetrating the connecting ring, the extrusion spring being sleeved on the sliding rod and being held between the connecting ring and the limiting plate, the connecting ring being fixedly connected to the flange and sleeved on the flange, and the semicircular fixing ring being aligned with the flange.

[0007] Wherein, the fixing mechanism further comprises a pulling block, and the pulling block is fixedly connected to the semicircular fixing ring and is located above the semicircular fixing ring.

[0008] Wherein, a plurality of anti-slip strips are arranged on the outer side of the pulling block.

[0009] Wherein, the safety valve for chemical storage tanks with filtering function further comprises a nameplate, which is bonded to the valve body and located on the outside of the valve body.

[0010] Wherein, the filtering mechanism includes a filter plate and a sealing seat, the inner wall of the inlet pipe is provided with two abutting strips, the filter plate is plugged into the sealing seat and is located in the sealing seat, the filter plate is also plugged into the inlet pipe and is located in the inlet pipe, and also passes through the outside of the inlet pipe, the filter plate is also abutted against the corresponding abutting strip and is located between the two abutting strips, the sealing seat is fixedly connected to the inlet pipe by bolts and is located on the outside of the inlet pipe.

[0011] In which, the sealing mechanism includes a sealing block, a connecting spring, a piston, a screw and a sealing cap, one end of the screw is provided with a supporting ring, the sealing cap has a threaded groove inside, the sealing block is slidably connected to the sealing tube and is located at the connection between the sealing tube, the inlet pipe and the outlet pipe, the connecting spring is supported between the sealing block and the piston and is also located in the sealing tube, the piston is slidably connected to the sealing tube and is located in the sealing tube, the screw is threadedly connected to the sealing cap and is located in the threaded groove and also passes through the sealing cap, the supporting ring and the piston are mutually supported and are located at the end of the piston away from the connecting spring, the sealing cap is threadedly connected to the sealing tube and covers the sealing tube.

[0012] Wherein, the sealing mechanism includes a positioning rod, which is fixedly connected to the sealing block and located at one end of the sealing block close to the connecting spring. The positioning rod is also slidably connected to the piston and located inside the piston, and the connecting spring is sleeved on the positioning rod.

[0013] The utility model discloses a safety valve for a chemical storage tank with a filtering function, comprising two flanges, a valve body and two fixing mechanisms, wherein the valve body is provided with an inlet pipe, an outlet pipe and a sealing pipe, the inlet pipe is provided with a filtering mechanism, the sealing pipe is provided with a sealing mechanism, the two flanges are respectively provided on the inlet pipe and the outlet pipe, the fixing mechanism is provided on the flange, the fixing mechanism comprises a semicircular fixing ring, a plurality of spring members and a connecting ring, the spring member comprises a limiting piece, a sliding rod and an extrusion spring, and by providing the semicircular fixing ring, the flange on the pipeline can be clamped and fixed under the action of the spring member, thereby no human support is required and the safety valve is prevented from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 It is a three-dimensional stereogram of the first embodiment of the utility model.

[0016] Figure 2 It is a front view of the first embodiment of the utility model.

[0017] Figure 3 The utility model Figure 2 Section view along line AA.

[0018] Figure 4 The utility model Figure 1 A partial enlarged view of point B in the middle.

[0019] Figure 5 It is a three-dimensional stereogram of the second embodiment of the utility model.

[0020] Figure 6 It is a front view of the second embodiment of the utility model.

[0021] Figure 7 The utility model Figure 6 Sectional view along the CC line.

[0022] Figure 8 The utility model Figure 6 Sectional view along line DD.

[0023] 101-flange, 102-valve body, 103-inlet pipe, 104-outlet pipe, 105-sealing pipe, 106-filter mechanism, 107-sealing mechanism, 108-semicircle fixing ring, 109-connecting ring, 110-limiting piece, 111-slide rod, 112-extrusion spring, 113-pull block, 114-anti-slip strip, 201-nameplate, 202-filter plate, 203-sealing seat, 204-holding strip, 205-sealing block, 206-connecting spring, 207-piston, 208-screw, 209-sealing cap, 210-holding ring, 211-thread groove, 212-positioning rod. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] First embodiment:

[0026] See also Figure 1~Figure 4 ,in Figure 1 It is a three-dimensional stereogram of the first embodiment of the utility model. Figure 2 This is a front view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 The cross-sectional view along the AA line. Figure 4 The utility model Figure 1 A partial enlarged view of point B in the middle.

[0027] The utility model provides a safety valve for a chemical storage tank with a filtering function, comprising two flanges 101, a valve body 102 and two fixing mechanisms, wherein the fixing mechanisms include a semicircular fixing ring 108, a plurality of spring members, a connecting ring 109 and a pulling block 113. The above-mentioned solution solves the technical problem that the flange 101 cannot be supported on a pipeline during installation, thus requiring manpower to support the entire valve body 102, and the valve body 102 is very likely to fall during the installation process, thereby causing damage to the valve body 102.

[0028] According to this specific embodiment, the valve body 102 is provided with an inlet pipe 103, an outlet pipe 104 and a sealing pipe 105. The inlet pipe 103 is provided with a filtering mechanism 106, and the sealing pipe 105 is provided with a sealing mechanism 107. The two flanges 101 are respectively provided on the inlet pipe 103 and the outlet pipe 104, and the inlet pipe 103 and the outlet pipe 104 are respectively connected to the two pipes. When liquid flows in the inlet pipe 103, the liquid will first pass through the filtering mechanism 106, and the filtering mechanism 106 can filter impurities in the liquid. When the filtering mechanism 106 in the present design is detachable, it will not cause the safety valve to be blocked by impurities, thereby improving the use effect of the safety valve. After reaching the set pressure range, the entering liquid will push open the sealing mechanism 107, thereby entering the outlet pipe 104 for discharge.

[0029] In which, the fixing mechanism is arranged on the flange 101, the spring member includes a limiting plate 110, a sliding rod 111 and an extrusion spring 112, the semicircular fixing ring 108 is fixedly connected to the sliding rod 111 and is located at one end of the sliding rod 111, the limiting plate 110 is fixedly connected to the sliding rod 111 and is located at the other end of the sliding rod 111, the sliding rod 111 is slidably connected to the connecting ring 109 and passes through the connecting ring 109, the extrusion spring 112 is sleeved on the sliding rod 111 and abuts between the connecting ring 109 and the limiting plate 110, the connecting ring 109 is fixedly connected to the flange 101 and sleeved on the flange 101, and the semicircular fixing ring 108 is aligned with the flange 101, and by arranging the semicircular fixing ring 108, the flange on the pipeline can be clamped and fixed under the action of the spring member, thereby eliminating the need for human support and also preventing the safety valve from falling off.

[0030] Secondly, the pulling block 113 is fixedly connected to the semicircular fixing ring 108 and is located above the semicircular fixing ring 108. The pulling block 113 can be used to pull the semicircular fixing ring 108, thereby facilitating the installation of the semicircular fixing ring 108 on the flange of the pipeline.

[0031] Again, a plurality of anti-slip strips 114 are disposed on the outer side of the pulling block 113 , and the anti-slip strips 114 can improve the gripping force, thereby avoiding slipping.

[0032] When the utility model is used to connect pipelines, the semicircular fixing ring 108 is pulled to expand the gap between the semicircular fixing ring 108 and the connecting ring 109, and the flange on the pipeline is located between the semicircular fixing ring 108 and the connecting ring 109. At this time, the semicircular fixing ring 108 is loosened, and the semicircular fixing ring 108 is automatically clamped on the flange on the pipeline by the action of the extrusion spring 112, thereby completing the fixation, and then the flange can be connected by bolts. In this way, the technical problem that the flange 101 cannot be supported on the pipeline during installation, thereby requiring manpower to support the entire valve body 102, and it is very easy to fall during the installation process, thereby causing damage to the valve body 102 is solved.

[0033] The second embodiment is:

[0034] Based on the first embodiment, please refer to Figure 5~Figure 8 ,in Figure 5 It is a three-dimensional stereogram of the second embodiment of the utility model. Figure 6 It is a front view of the second embodiment of the utility model. Figure 7 The utility model Figure 6 Cross-sectional view of the CC line, Figure 8 The utility model Figure 6 Sectional view along line DD.

[0035] The utility model provides a safety valve for a chemical storage tank with a filtering function, which also includes a nameplate 201, the filtering mechanism 106 includes a filter plate 202 and a sealing seat 203, and the sealing mechanism 107 includes a sealing block 205, a connecting spring 206, a piston 207, a screw 208, a sealing cap 209 and a positioning rod 212.

[0036] According to this specific embodiment, the nameplate 201 is bonded to the valve body 102 and is located on the outside of the valve body 102 . The nameplate 201 can be used to conveniently record the manufacturer's name, product model, technical parameters and usage conditions.

[0037] The inner wall of the inlet pipe 103 is provided with two abutting strips 204, the filter plate 202 is plugged with the sealing seat 203 and is located in the sealing seat 203, the filter plate 202 is also plugged with the inlet pipe 103 and is located in the inlet pipe 103, and also penetrates the outer side of the inlet pipe 103, the filter plate 202 is also mutually abutted with the corresponding abutting strips 204, and is located between the two abutting strips 204, the sealing seat 203 is connected to the inlet pipe 103 by bolts. 3 is fixedly connected and located on the outside of the inlet pipe 103. By removing the bolts, the sealing seat 203 is removed from the outside of the inlet pipe 103, and the filter plate 202 is taken out from the inlet pipe 103. After the impurities on the filter plate 202 are cleaned, the filter plate 202 is inserted into the sealing seat 203, and the filter plate 202 is inserted into the inlet pipe 103. Finally, the sealing seat 203 is installed on the outside of the inlet pipe 103 by bolts.

[0038] Among them, one end of the screw rod 208 is provided with a supporting ring 210, the sealing cap 209 has a thread groove 211 inside, the sealing block 205 is slidably connected with the sealing tube 105, and is located at the connection between the sealing tube 105, the inlet pipe 103 and the outlet pipe 104, the connecting spring 206 is supported between the sealing block 205 and the piston 207, and is also located in the sealing tube 105, the piston 207 is slidably connected with the sealing tube 105, and is located in the sealing tube 105, the screw rod 208 is threadedly connected with the sealing cap 209, and is located in the thread groove 211, and also The sealing cap 209 is penetrated, and the supporting ring 210 and the piston 207 are supported against each other and are located at the end of the piston 207 away from the connecting spring 206. The sealing cap 209 is threadedly connected to the sealing tube 105 and covers the sealing tube 105. By rotating the screw 208, the screw 208 moves toward the sealing tube 105 under the action of the thread groove 211, so that the supporting ring 210 pushes the piston 207, and the piston 207 compresses the connecting spring 206, thereby adjusting the pressure of the sealing block 205, thereby improving the practicality of the safety valve.

[0039] Among them, the positioning rod 212 is fixedly connected to the sealing block 205 and is located at one end of the sealing block 205 close to the connecting spring 206. The positioning rod 212 is also slidably connected to the piston 207 and is located inside the piston 207. The connecting spring 206 is sleeved on the positioning rod 212. The positioning rod 212 can prevent the connecting spring 206 from bending or deflecting.

[0040] When using the safety valve for chemical storage tanks with filtering function of the present embodiment, the name of the manufacturer, the model of the product, the technical parameters and the use conditions can be recorded through the nameplate 201. The bolts are removed, and then the sealing seat 203 is removed from the outside of the inlet pipe 103. At the same time, the filter plate 202 is taken out from the inlet pipe 103. After the impurities on the filter plate 202 are cleaned, the filter plate 202 is inserted into the sealing seat 203, and the filter plate 202 is inserted into the inlet pipe 103. The sealing seat 203 can then be installed on the outside of the inlet pipe 103 by means of bolts, and the screw 208 is rotated to move the screw 208 toward the sealing tube 105 under the action of the thread groove 211, so that the supporting ring 210 pushes the piston 207, and the piston 207 compresses the connecting spring 206, thereby adjusting the pressure of the sealing block 205, thereby improving the practicability of the safety valve, and the positioning rod 212 can prevent the connecting spring 206 from bending or deflecting.

[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A safety valve for a chemical storage tank with a filtering function, comprising two flanges and a valve body, wherein the valve body is provided with an inlet pipe, an outlet pipe and a sealing pipe, wherein a filtering mechanism is provided in the inlet pipe, and a sealing mechanism is provided in the sealing pipe, wherein the two flanges are respectively provided on the inlet pipe and the outlet pipe, and wherein: It also includes two fixing mechanisms, wherein the fixing mechanisms are arranged on the flange; The fixing mechanism includes a semicircular fixing ring, a plurality of spring parts and a connecting ring, the spring part includes a limiting plate, a sliding rod and an extrusion spring, the semicircular fixing ring is fixedly connected to the sliding rod and is located at one end of the sliding rod, the limiting plate is fixedly connected to the sliding rod and is located at the other end of the sliding rod, the sliding rod is slidably connected to the connecting ring and passes through the connecting ring, the extrusion spring is sleeved on the sliding rod and is held between the connecting ring and the limiting plate, the connecting ring is fixedly connected to the flange and sleeved on the flange, and the semicircular fixing ring is aligned with the flange.

2. The safety valve for chemical storage tanks with filtering function as claimed in claim 1, characterized in that: The fixing mechanism also includes a pulling block, which is fixedly connected to the semicircular fixing ring and is located above the semicircular fixing ring.

3. The safety valve for chemical storage tanks with filtering function as claimed in claim 2, characterized in that: A plurality of anti-slip strips are arranged on the outer side of the pulling block.

4. The safety valve for chemical storage tanks with filtering function as claimed in claim 3, characterized in that: The safety valve for chemical storage tanks with filtering function also includes a nameplate, which is bonded to the valve body and located on the outside of the valve body.

5. The safety valve for chemical storage tanks with filtering function as claimed in claim 4, characterized in that: The filtering mechanism includes a filter plate and a sealing seat. The inner wall of the inlet pipe is provided with two abutting strips. The filter plate is plugged into the sealing seat and is located in the sealing seat. The filter plate is also plugged into the inlet pipe and is located in the inlet pipe and also passes through the outside of the inlet pipe. The filter plate is also abutted against the corresponding abutting strips and is located between the two abutting strips. The sealing seat is fixedly connected to the inlet pipe by bolts and is located on the outside of the inlet pipe.

6. The safety valve for chemical storage tanks with filtering function as claimed in claim 5, characterized in that: The sealing mechanism includes a sealing block, a connecting spring, a piston, a screw and a sealing cap. A supporting ring is provided at one end of the screw. A threaded groove is provided inside the sealing cap. The sealing block is slidably connected to the sealing tube and is located at the connection between the sealing tube, the inlet tube and the outlet tube. The connecting spring is supported between the sealing block and the piston and is also located in the sealing tube. The piston is slidably connected to the sealing tube and is located in the sealing tube. The screw is threadedly connected to the sealing cap and is located in the threaded groove and also passes through the sealing cap. The supporting ring and the piston are mutually supported and are located at one end of the piston away from the connecting spring. The sealing cap is threadedly connected to the sealing tube and covers the sealing tube.

7. The safety valve for chemical storage tanks with filtering function as claimed in claim 6, characterized in that: The sealing mechanism includes a positioning rod, which is fixedly connected to the sealing block and located at one end of the sealing block close to the connecting spring. The positioning rod is also slidably connected to the piston and located inside the piston, and the connecting spring is sleeved on the positioning rod.

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