Emergency leakproof pressure relief valve
By designing a pressure relief mechanism and a leak-proof alarm mechanism on the valve, the problem of direct discharge of medium in existing pressure relief valves is solved, realizing timely pressure relief and alarm, and preventing accidents as an emergency leak-proof pressure relief valve.
Patent Information
- Application Number
- CN202520479168.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing pressure relief valves directly discharge the medium to the outside during pressure relief, without timely alarm, which may lead to delayed response by operators and cause accidents.
An emergency leak-proof and pressure-relief valve was designed, which includes a pressure relief mechanism and a leak-proof alarm mechanism. It uses an elastic bladder to store the medium and issues an alarm when the pressure increases, providing reaction time and preventing medium leakage.
It enables timely pressure relief and alarm when pressure increases, preventing the medium from being discharged to the outside, giving operators time to react, and preventing accidents.
Smart Images
Figure CN223908963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an emergency leak-proof pressure relief valve. BACKGROUND
[0002] Valve is the control component in the fluid conveying system, when the valve is in the closed state, the pressure in the valve inlet end pipeline will rise sharply when the accident happens, when the pressure cannot be released in time, the medium may flow backward, which not only will disturb the normal process, but also may cause impact and damage to the subsequent equipment, even worse, the overhigh pressure may cause the valve body to break, and cause a major accident.
[0003] In order to avoid the above situation, the existing technology generally sets a pressure relief valve on the pipeline or valve, when the pressure in the pipeline or valve exceeds the preset value, the pressure relief valve will automatically open to release pressure, but the pressure relief valve discharges directly the medium in the pipeline or valve to the outside, the operator cannot react and operate in time, and still will cause certain loss. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the deficiency of the prior art, providing an emergency leak-proof pressure relief valve which can release pressure in time and issue an alarm, and will not cause the medium to be discharged to the outside during the pressure relief process, and reserving time for the operator to react.
[0005] The technical scheme of the utility model is: an emergency leak-proof pressure relief valve, comprising a valve body, an elongated part is arranged at the inlet end of the valve body, and an emergency leak-proof pressure relief device is arranged on the elongated part.
[0006] The emergency leak-proof pressure relief device comprises a pressure relief mechanism arranged on the elongated part and a leak-proof warning mechanism arranged on the top of the pressure relief mechanism.
[0007] The pressure relief mechanism comprises a fixed seat which is sealingly connected to the elongated part, a pressure relief hole is arranged in the middle of the fixed seat, the bottom of the pressure relief hole is communicated with the inside of the elongated part, a fixed block is arranged at the upper end in the pressure relief hole, a core body is telescopically connected to the lower end of the pressure relief hole, the lower end of the pressure relief hole is in the shape of an inverted horn, the lower end of the core body is in the shape of a truncated cone, a strong spring is arranged between the core body and the fixed block, the outer periphery of the core body and the inner periphery of the pressure relief hole are kept at a distance, and a plurality of through holes are annularly arranged on the fixed block.
[0008] The leak-proof warning mechanism comprises a tank body, an elastic bag arranged in the tank body, and an audible and visual alarm mechanism arranged on the top of the tank body, the tank body is sealingly fixed above the fixed seat, the opening end of the elastic bag is sealingly connected to the upper end of the pressure relief hole, a partition plate is further arranged at the upper end in the tank body, a control chip is arranged on the upper end of the partition plate, and a pressure sensor is further arranged at the bottom of the partition plate.
[0009] Further, the open end of the elastic bag is provided with a mounting ring, the open end of the tank body is provided with a mounting groove corresponding to the mounting ring, the mounting ring is buckled in the mounting groove after being folded, and a limiting ring is further buckled on the mounting groove, so that the open end of the elastic bag is limited between the mounting groove and the fixed seat after the tank body is fixed to the fixed seat.
[0010] Further, the open end of the tank body is provided with a threaded end, and the top of the fixed seat is provided with a threaded seat, so that the tank body is screwed on the threaded seat of the fixed seat.
[0011] Further, a first seal is further arranged between the tank body and the threaded seat, and the first seal is located at the outer periphery of the limiting ring.
[0012] Further, the tank body is further provided with a transparent observation window.
[0013] Further, the elongated part is further provided with a mounting seat, the mounting seat is provided with a fixing hole corresponding to the fixed seat, and the fixed seat is fixed on the mounting seat.
[0014] Further, a second seal is further arranged between the fixed seat and the mounting seat.
[0015] Further, the lower end of the fixed block is provided with a spring seat, the upper end of the strong spring is arranged in the spring seat, the fixed block above the spring seat is further provided with a guide hole, the top and bottom of the core body are respectively provided with a first guide rod and a second guide rod, the first guide rod penetrates into the guide hole, and the second guide rod penetrates out of the bottom of the pressure relief hole.
[0016] Further, the top of the first guide rod penetrates out of the guide hole and is fixed with a cap body, and the outer periphery of the cap body covers the through holes on the fixed blocks.
[0017] Further, the control chip is further electrically connected with a driving mechanism for driving the valve to open and close.
[0018] The utility model discloses the beneficial effect is: the utility model constructs simple, can be transformed on the basis of existing valve and obtains, when the pressure in the inlet end pipeline increases sharply when accident occurs, the utility model can relieve pressure in time and send out the alarm, and the medium will not be discharged to the outside world during the pressure relief process, and because the elastic bag of the utility model has certain storage medium capacity, the staff still has reaction time when the audible and visual alarm mechanism sends out the alarm, and the valve can be opened in time before the medium leaks to the outside world, to avoid causing major accidents. ACCURACY OF DRAWINGS
[0019] Figure 1 It is the structure schematic diagram of the utility model;
[0020] Figure 2It is the structure schematic view of the emergency leakage-proof pressure relief device in the utility model.
[0021] In the drawing: valve body 1, lengthening part 2, pressure relief mechanism 3, leakage-proof warning mechanism 4, fixing seat 5, pressure relief hole 6, fixing block 7, core 8, strong spring 9, through hole 10, tank 11, elastic bag 12, sound and light alarm mechanism 13, partition 14, control chip 15, pressure sensor 16, mounting ring 17, limiting ring 18, screwing end 19, screwing seat 20, first seal 21, observation window 22, mounting seat 23, second seal 24, first guide rod 25, second guide rod 26, cap 27. DETAILED DESCRIPTION
[0022] The technical scheme of the utility model will be further specifically explained below by examples and in combination with the drawings.
[0023] In combination Figure 1 And Figure 2 As shown in the figure, an emergency leakage-proof pressure relief valve comprises a valve body 1, the inlet end of the valve body 1 is provided with a lengthening part 2, the lengthening part 2 is provided with an emergency leakage-proof pressure relief device;
[0024] The emergency leakage-proof pressure relief device comprises a pressure relief mechanism 3 arranged on the lengthening part 2 and a leakage-proof warning mechanism 4 arranged on the top of the pressure relief mechanism 3;
[0025] The pressure relief mechanism 3 comprises a fixing seat 5 sealingly connected to the lengthening part 2, the fixing seat 5 is provided with a pressure relief hole 6 in the middle, the bottom of the pressure relief hole 6 penetrates the inside of the lengthening part 2, the upper end of the pressure relief hole 6 is provided with a fixing block 7, the lower end of the pressure relief hole 6 is telescopically connected with a core 8, the lower end of the pressure relief hole 6 is in the shape of an inverted horn, the lower end of the core 8 is in the shape of a truncated cone, a strong spring 9 is arranged between the core 8 and the fixing block 7, the outer periphery of the core 8 and the inner periphery of the pressure relief hole 6 keep a distance, and a plurality of through holes 10 are annularly arranged on the fixing block 7;
[0026] When the pressure in the lengthening part 2 does not reach a certain value, the lower end of the core 8 abuts and closes the bottom of the pressure relief hole 6; when the pressure in the lengthening part 2 exceeds a certain value, the medium pushes the core 8 upward under the action of the pressure, a gap is generated between the lower end of the core 8 and the bottom of the pressure relief hole 6, the medium enters the pressure relief hole 6 from the gap, and is discharged from above the through holes 10 on the fixing block 7 to relieve pressure;
[0027] The anti-leakage warning mechanism 4 comprises a tank 11, an elastic bag 12 arranged in the tank 11, and an audible and visual alarm mechanism 13 arranged on the top of the tank 11. The tank 11 is sealingly fixed above the fixing base 5. The opening end of the elastic bag 12 is sealingly connected with the upper end of the pressure relief hole 6. A partition plate 14 is further arranged in the tank 11. The control chip 15 is arranged on the upper end of the partition plate 14. The pressure sensor 16 is further arranged on the bottom of the partition plate 14. When the medium is discharged upward by the pressure relief mechanism 3, the medium enters the elastic bag 12 to expand the elastic bag 12. The pressure in the tank 11 increases accordingly. The pressure sensor 16 senses the pressure change and sends a signal to the control chip 15. The control chip 15 outputs a signal to make the audible and visual alarm mechanism 13 alarm.
[0028] The working principle and beneficial effects of the above structure are as follows: when the valve is in a closed state, the pipeline connected to the inlet end of the valve is in a pressure state. The pressure also acts on the elongated part 2 of the valve. When an accident occurs, the pressure in the pipeline at the inlet end increases dramatically. Under the action of the pressure, the medium pushes the core 8 of the pressure relief mechanism 3 upward. The medium enters the elastic bag 12 through the gaps between the pressure relief hole 6 and the core 8, and the through holes 10 on the fixing block 7 in sequence. During this process, the through holes 10 on the fixing block 7 are arranged in a scattered manner to disperse the impact force of the medium. After the medium enters the elastic bag 12, the elastic bag 12 expands, the pressure in the tank 11 rises, the pressure sensor 16 sends a signal to make the audible and visual alarm mechanism 13 alarm. Since the elastic bag 12 has a certain storage capacity for the medium, the staff has a reaction time when the audible and visual alarm mechanism 13 alarms. The valve can be opened in time to relieve the pressure before the medium leaks to the outside, so as to avoid causing a major accident.
[0029] In another embodiment, as shown in Figure 2 the opening end of the elastic bag 12 is provided with a mounting ring 17. The opening end of the tank 11 is provided with a mounting groove corresponding to the mounting ring 17. The mounting ring 17 is buckled in the mounting groove after being folded. The mounting groove is further buckled with a limiting ring 18. When the tank 11 is fixed to the fixing base 5, the limiting ring 18 abuts between the mounting groove and the fixing base 5 to limit the opening end of the elastic bag 12.
[0030] In another embodiment, as shown in Figure 2 the opening end of the tank 11 is further provided with a threaded end 19. The top of the fixing base 5 is further provided with a threaded seat 20. The tank 11 is screwed on the threaded seat 20 of the fixing base 5. One end of the limiting ring 18 abuts with the threaded seat 20.
[0031] In another embodiment, as shown in Figure 2 the tank 11 and the threaded seat 20 are further provided with a first seal 21. The first seal 21 is located on the outer periphery of the limiting ring 18 to ensure the sealing performance of the joint between the elastic bag 12 and the pressure relief hole 6.
[0032] In another embodiment, as shown in Figure 1 , the tank 11 is also provided with a transparent observation window 22 to facilitate the staff to observe the expansion degree of the elastic bag 12.
[0033] In another embodiment, as shown in Figure 1 and Figure 2 , the elongated part 2 is also provided with a mounting seat 23, which is provided with a fixing hole corresponding to the fixing seat 5, and the fixing seat 5 is fixed on the mounting seat 23.
[0034] In another embodiment, as shown in Figure 2 , the fixing seat 5 and the mounting seat 23 are also provided with a second seal 24 to ensure the sealing of the connection between the fixing seat 5 and the mounting seat 23.
[0035] In another embodiment, as shown in Figure 2 , the upper end of the fixing seat 5 is provided with an internal thread, and the fixing block 7 is screwed into the internal thread of the fixing seat 5.
[0036] In another embodiment, as shown in Figure 2 , the lower end of the fixing block 7 is provided with a spring seat, the upper end of the strong spring 9 is arranged in the spring seat, the fixing block 7 above the spring seat is also provided with a guide hole, the core 8 is provided with a first guide rod 25 at the top and a second guide rod 26 at the bottom, the first guide rod 25 penetrates into the guide hole, and the second guide rod 26 penetrates out of the bottom of the pressure relief hole 6, to ensure the stability of the core 8 when it moves up and down.
[0037] In another embodiment, as shown in Figure 2 , the top of the first guide rod 25 penetrates out of the guide hole and is fixed with a cap 27, and the outer periphery of the cap 27 covers each through hole 10 on each fixing block 7, so that when the medium sprays out of each through hole 10, it first contacts the cap 27 to avoid the medium directly impacting the elastic bag 12 and causing the elastic bag 12 to rupture.
[0038] In another embodiment, the valve body 1 is an electric valve, the control chip 15 is also electrically connected with a driving mechanism for driving the opening and closing of the valve, when the pressure sensor 16 detects that the pressure in the tank 11 reaches a high value, the control chip 15 controls the valve to open to release pressure, to realize automatic control and avoid major accidents caused by the inability of the operator to operate in time.
Claims
1. An emergency leak-tight pressure relief valve comprising a valve body (1), characterized in that, The inlet end of the valve body (1) is provided with an elongated part (2), and the elongated part (2) is provided with an emergency anti-leakage pressure relief device; The emergency anti-leakage pressure relief device comprises a pressure relief mechanism (3) arranged on the elongated part (2) and an anti-leakage warning mechanism (4) arranged on the top of the pressure relief mechanism (3); The pressure relief mechanism (3) comprises a fixed seat (5) sealingly connected to the elongated part (2), wherein a pressure relief hole (6) is arranged in the middle of the fixed seat (5), the bottom of the pressure relief hole (6) penetrates the inside of the elongated part (2), a fixed block (7) is arranged at the upper end of the pressure relief hole (6), a core body (8) is telescopically connected to the lower end of the pressure relief hole (6), the lower end of the pressure relief hole (6) is in the shape of an inverted horn, the lower end of the core body (8) is in the shape of a truncated cone, a strong spring (9) is arranged between the core body (8) and the fixed block (7), the outer periphery of the core body (8) and the inner periphery of the pressure relief hole (6) are kept at a distance, and a plurality of through holes (10) are annularly arranged on the fixed block (7). The anti-leakage warning mechanism (4) comprises a tank body (11), an elastic bag (12) arranged in the tank body (11), and an audible and visual alarm mechanism (13) arranged on the top of the tank body (11), the tank body (11) is sealingly fixed above the fixed seat (5), the opening end of the elastic bag (12) is sealingly connected to the upper end of the pressure relief hole (6), and a partition plate (14) is further arranged at the upper end in the tank body (11), the upper end of the partition plate (14) is provided with a control chip (15), and the bottom of the partition plate (14) is further provided with a pressure sensor (16).
2. An emergency leak-tight pressure relief valve as defined in claim 1, characterized in that The opening end of the elastic bag (12) is provided with a mounting ring (17), the opening end of the tank body (11) is provided with a mounting groove corresponding to the mounting ring (17), the mounting ring (17) is buckled in the mounting groove after being folded, and a limiting ring (18) is further buckled on the mounting groove, when the tank body (11) is fixed to the fixed seat (5), the limiting ring (18) abuts between the mounting groove and the fixed seat (5) to limit the opening end of the elastic bag (12).
3. An emergency leak-tight pressure relief valve as defined in claim 2, characterized in that The opening end of the tank body (11) is further provided with a threaded end (19), and the top of the fixed seat (5) is further provided with a threaded seat (20), and the tank body (11) is screwed on the threaded seat (20) of the fixed seat (5).
4. An emergency leak-tight pressure relief valve as defined in claim 3, characterized in that A first seal (21) is further arranged between the tank body (11) and the threaded seat (20), and the first seal (21) is located at the outer periphery of the limiting ring (18).
5. An emergency leak-tight pressure relief valve as defined in claim 4, wherein A transparent observation window (22) is further arranged on the tank body (11).
6. An emergency leak-tight pressure relief valve as defined in claim 5, characterized in that An installation seat (23) is further arranged on the elongated part (2), the installation seat (23) is provided with a fixing hole corresponding to the fixed seat (5), and the fixed seat (5) is fixed on the installation seat (23).
7. An emergency leak-tight pressure relief valve as defined in claim 6, characterized in that A second seal (24) is further arranged between the fixed seat (5) and the installation seat (23).
8. An emergency leak-tight pressure relief valve as defined in claim 7, characterized in that The lower end of the fixed block (7) is provided with a spring seat, the upper end of the strong spring (9) is arranged in the spring seat, the fixed block (7) above the spring seat is further provided with a guide hole, the top and bottom of the core (8) are respectively provided with a first guide rod (25) and a second guide rod (26), the first guide rod (25) penetrates into the guide hole, and the second guide rod (26) penetrates out of the bottom of the pressure relief hole (6).
9. An emergency leak-tight pressure relief valve as defined in claim 8, characterized in that The top of the first guide rod (25) penetrates out of the guide hole and is fixed with a cap body (27), and the outer periphery of the cap body (27) covers the through hole (10) on each fixed block (7).
10. An emergency leak-tight pressure relief valve as defined in claim 9, wherein The control chip (15) is further electrically connected with a driving mechanism for driving the opening and closing of the valve.