Leakage-proof alarm device for fluid in storage tank lined with polytetrafluoroethylene plate

Abstract

The invention relates to the technical field of anti-leakage alarm devices, in particular to an anti-leakage alarm device for fluid in a storage tank lined with a polytetrafluoroethylene plate. Comprising a support, a valve tank is fixedly installed on the support, the inner wall of the support is rotationally connected with a rotary tank driven by a transmission motor, a leak hunting ring cavity and a storage cavity which are isolated from each other are sequentially formed in the rotary tank from outside to inside, the storage cavity is rotationally communicated with the valve tank, and a sealing ring bag is fixedly installed on the inner wall of the leak hunting ring cavity; the valve tank is provided with a pressure monitoring component matched with the storage cavity and the leak hunting ring cavity, the inner wall of the valve tank is provided with a transmission module, the transmission module is in transmission connection with a moving ring, and the moving ring is rotationally connected with a brush ring. The device has the beneficial effects that after fluid is injected into the storage cavity, the injection pump injects gas into the storage cavity through the first guide pipe, and finally, the interior of the storage cavity has an initial air pressure value, the gas in the sealing ring bag is fully emptied, and the interior of the leakage detection ring cavity is kept at the reference pressure.

Description

Technical Field

[0001] The invention relates to the technical field of anti-leakage alarm devices, in particular to an anti-leakage alarm device for fluid in a storage tank lined with a polyfluoro plate. Background Art

[0002] In the chemical, petroleum, pharmaceutical and other industries, storage tanks are key equipment for storing and transporting various types of fluids. With the development of the chemical industry, highly corrosive acid liquids such as concentrated sulfuric acid and concentrated nitric acid are widely used, and corresponding safety accidents are becoming more and more important. However, due to the complexity and corrosiveness of the fluid medium, the inner wall of the storage tank is prone to leakage, which not only leads to material loss, but also may cause environmental pollution and safety accidents. Therefore, it is particularly important to develop a storage tank that can effectively prevent fluid leakage and has real-time monitoring function.

[0003] Traditional anti-leakage measures for storage tanks mostly rely on the corrosion resistance of materials and the sealing of structures. However, in actual use, leakage may still occur due to material aging, improper operation or external factors. In the prior art, the patent document with publication number CN208765911U discloses an alarm protection device for detecting acid tank leakage, which can automatically detect the temperature at different sections on the tank body, determine whether there is leakage and promptly remind workers to check and repair in time, thus avoiding large-scale leakage of the tank body and causing irreparable losses, reducing safety risks and maintenance costs. However, the above leakage alarm device is not convenient for realizing multi-effect leakage point detection of the tank body through air pressure comparison detection. At the same time, the existing leakage alarm device cannot realize automatic sealing of the leakage point when the leakage point occurs. Based on this, the present invention provides a fluid leakage prevention alarm device in a storage tank lined with polytetrafluoroethylene board to solve the problems raised in the above background technology. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a fluid anti-leakage alarm device for a storage tank lined with a polytetrafluoroethylene plate to solve the problem that the existing leakage alarm device is not convenient for realizing multi-effect leakage point detection of the tank body through an air pressure comparison detection method, and the existing leakage alarm device cannot realize automatic sealing of the leakage point when the leakage point occurs.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: an anti-leakage alarm device for fluid in a storage tank lined with a polytetrafluoroethylene plate, comprising a bracket, a valve tank is fixedly installed on the bracket, the inner wall of the bracket is rotatably connected to a rotary tank driven by a transmission motor, the interior of the rotary tank is provided with leak detection ring cavities and storage cavities isolated from each other from the outside to the inside, the storage cavity is rotatably connected to the valve tank, a sealing ring capsule is fixedly installed on the inner wall of the leak detection ring cavity, a pressure monitoring component cooperating with the storage cavity and the leak detection ring cavity is installed on the valve tank, a transmission module is installed on the inner wall of the valve tank, a moving ring is transmission-connected to the transmission module, a brush ring is rotatably connected to the moving ring, the brush ring is driven by the transmission module, a scraper ring is installed on the surface of the brush ring, a group of spoilers distributed in a circular array are installed on the brush ring, the outer surfaces of the scraper ring and the brush ring are both in contact with the rotary tank, an injection pressure leak detection assembly is installed in the scraper ring, and the injection pressure leak detection assembly is connected to the pressure monitoring component.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the bottom of the valve tank is connected to a liquid outlet valve, the upper part of the valve tank is connected to a liquid injection valve, a liquid level probe for monitoring the liquid level inside the storage chamber is installed inside the valve tank, a central control host is installed on the end face of the valve tank, and the central control host has a built-in sound and light alarm module.

[0008] Furthermore, the inner walls of the valve tank and the rotary tank are lined with polytetrafluoroethylene plates.

[0009] Further, the pressure monitoring component includes an injection and pressure pump, which is fixedly connected to the valve tank, and the air outlet port of the injection and pressure pump is respectively connected to the first conduit, the second conduit and the third conduit, the first conduit and the second conduit are each installed with a first air pressure probe, the first conduit, the second conduit and the third conduit are each installed with an electromagnetic air valve, the air outlet port of the first conduit is connected to the storage cavity, the second conduit is connected to the injection and pressure leak detection assembly, a middle ring tube is fixedly installed on the bracket, a sealing cavity is opened inside the middle ring tube, the sealing cavity is connected to the inner cavity of the sealing ring bag, the third conduit is fixedly connected to the sealing cavity, a second air pressure probe for monitoring the internal air pressure of the sealing cavity is fixedly installed on the middle ring tube, and the two first air pressure probes and the second air pressure probes are both connected to the data of the central control host.

[0010] The beneficial effect of adopting the above further solution is that when the rotary tank is used, liquid is stored inside the storage chamber, and the highest liquid level height of the liquid on the inner wall of the storage chamber should be maintained below the transmission screw rod, the guide shaft rod and the guide rod; After the fluid is injected into the storage cavity, the injection pump injects gas into the interior of the storage cavity through the first conduit, and finally makes the interior of the storage cavity have an initial gas pressure value; The gas inside the sealing ring bag is fully evacuated, and the leak detection ring cavity is maintained at the reference pressure; Among them, the initial air pressure value of the storage chamber is higher than the reference pressure of the leak detection ring chamber.

[0011] Furthermore, the pressure monitoring component also includes a tail ring tube fixed on the bracket, the inner cavity of the tail ring tube is connected to the leak detection ring cavity, and a third air pressure probe for monitoring the air pressure inside the leak detection ring cavity is fixedly installed inside the tail ring tube, and the data end of the third air pressure probe is connected to the data of the central control host.

[0012] The beneficial effect of adopting the above further scheme is that when the rotary tank is working normally, when the data change amplitude of the initial air pressure value inside the storage cavity or the data change amplitude of the reference pressure in the leak detection ring cavity exceeds the set threshold value, the central control host determines that the storage cavity or the rotary tank is leaking. When the central control host determines that the storage tank is in a leaking state, the injection pump starts to work and pressurizes the interior of the sealing ring capsule sufficiently until the sealing ring capsule fully seals and fills the leak detection ring cavity. Through sufficient injection pressure and sealing filling of the sealing ring capsule, the leakage of the storage cavity is blocked to a certain extent, thereby slowing down or stopping the leakage of the storage cavity.

[0013] Furthermore, the transmission module includes a double-headed motor fixed on the valve tank, a transmission screw, a guide shaft and a guide rod fixed on the valve tank, which are rotatably connected to the valve tank, and the two output shaft ends of the double-headed motor are respectively connected to the transmission screw and the guide shaft, the transmission screw is connected to the moving ring, the guide rod is slidably connected to the moving ring, and the brush ring is driven by the guide shaft.

[0014] The beneficial effect of adopting the above further scheme is that when the fluid is stored in the storage chamber, the rotary can rotates periodically for a specified period, during the non-rotation period of the rotary can, the double-headed motor works periodically and reciprocates within the set period, and during the working cycle of the double-headed motor, the moving ring reciprocates inside the rotary can according to the length of the rotary can, and when the moving ring reciprocates, the injection pressure leak detection assembly works.

[0015] Furthermore, the inner wall of the movable ring is rotatably connected to a shaft sleeve, the interior of the shaft sleeve is fixedly provided with a shaft groove with openings at both ends and slidably connected to the guide shaft rod, the cross-sections of the shaft groove and the guide shaft rod are both regular polygons, a driving gear is fixedly mounted on the shaft sleeve, a driven gear ring is fixedly mounted on the inner wall of the brush ring, and the driving gear is transmission-connected to the driven gear ring.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that when the double-headed motor is working, the guide shaft drives the sleeve to rotate at a set speed. After the sleeve rotates, it drives the brush ring to rotate. After the brush ring rotates, the inner wall of the storage chamber is rotationally brushed during the movement of the moving ring. The rotational brushing effect of the inner wall of the storage chamber can effectively ensure and improve the cleanliness of the inner wall of the storage chamber, and the leakage points inside the storage chamber are fully exposed. Through the rotation of the brush ring, the concentration of the fluid inside the storage chamber is made uniform, and finally the corrosion degree in the storage chamber is made uniform.

[0017] Furthermore, the injection and pressure leak detection assembly includes an injection and pressure wheel fixed on a scraper ring, an injection and pressure cavity is fixedly opened inside the injection and pressure wheel, the injection and pressure cavity is connected with a corrugated conduit, the other end of the corrugated conduit is connected with a second conduit, an injection and pressure hole connected with the injection and pressure cavity is opened at the top of the injection and pressure wheel, a test wheel is rotatably provided on the injection and pressure wheel, and a group of pressure measuring holes distributed in a circular array and cooperating with the injection and pressure holes are opened on the test wheel.

[0018] Furthermore, the rotation axis of the test wheel is perpendicular to the axis of the rotary pot.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that when the moving ring moves, the interior of the injection and pressure chamber is sufficiently pressurized, and when pressurized, the air pressure inside the injection and pressure chamber is higher than the initial pressure value in the storage chamber. After the test wheel moves, the injection and pressure detection of the rotary tank is carried out along the inner wall of the storage chamber through the pressure measuring hole. When the data change amplitude of the air pressure probe on the second conduit exceeds the threshold value, it is judged that a leak occurs in the inner cavity of the rotary tank. After the central control host detects that a leak occurs inside the rotary tank, it automatically alarms and reminds, and realizes the multi-effect leakage point injection and pressure monitoring and leakage detection functions, thereby effectively improving the leakage prevention monitoring accuracy of the device.

[0020] Furthermore, the inner wall of the rotary pot is rotatably connected to a stirring shaft, a group of stirring rings distributed in a linear array are installed on the stirring shaft and at a position corresponding to the inner side of the storage cavity, each of the stirring rings is installed with a group of stirring rods distributed in a circular array, the inner wall of the bracket is rotatably connected to a differential shaft, differential bevel gears are installed on the differential shaft, side bevel gears are installed on both the rotary pot and the stirring shaft, two side bevel gears are transmission-connected to the differential bevel gears, and the two side bevel gears are respectively arranged on both sides of the differential bevel gears.

[0021] The beneficial effect of adopting the above further solution is that when the rotary pot rotates, the stirring shaft rotates at a set speed, and after the stirring shaft rotates, stirring of the fluid is then achieved.

[0022] The beneficial effects of the present invention are: 1. In the present invention, after the fluid is injected into the storage cavity, the injection and pressure pump injects gas into the interior of the storage cavity through the first conduit, and finally makes the interior of the storage cavity have an initial air pressure value, the gas inside the sealing ring bag is fully emptied, and the leak detection ring cavity is maintained at a reference pressure, wherein the initial air pressure value of the storage cavity is higher than the reference pressure of the leak detection ring cavity, and when the rotary tank works normally, when the data change amplitude of the initial air pressure value inside the storage cavity or the data change amplitude of the reference pressure in the leak detection ring cavity exceeds the set threshold value, the central control host determines that the storage cavity or the rotary tank is leaking, and when the central control host determines that the storage tank is in a leaking state, the injection and pressure pump works and sufficiently pressurizes the interior of the sealing ring bag until the sealing ring bag fully seals and fills the leak detection ring cavity, and through sufficient injection pressure and sealing filling of the sealing ring bag, the leakage of the storage cavity is blocked to a certain extent, thereby slowing down or stopping the leakage of the storage cavity.

[0023] 2. When the double-headed motor in the present invention is working, the guide shaft drives the sleeve to rotate at a set speed. After the sleeve rotates, it drives the brush ring to rotate. After the brush ring rotates, the inner wall of the storage chamber is brushed during the movement of the moving ring. The brushing effect of the inner wall of the storage chamber is achieved to effectively ensure and improve the cleanliness of the inner wall of the storage chamber, and the leakage points inside the storage chamber are fully exposed. The rotation of the brush ring makes the concentration of the fluid inside the storage chamber uniform, and finally makes the corrosion degree in the storage chamber uniform.

[0024] 3. In the present invention, when the moving ring moves, the interior of the injection and pressure chamber is sufficiently pressurized, and when pressurized, the air pressure inside the injection and pressure chamber is higher than the initial pressure value in the storage chamber. After the test wheel moves, the injection and pressure detection of the rotary tank is carried out along the inner wall of the storage chamber through the pressure measuring hole. When the data change amplitude of the air pressure probe on the second conduit exceeds the threshold value, it is judged that the inner cavity of the rotary tank has a leak. After the central control host detects the leakage condition inside the rotary tank, it automatically alarms and reminds, and realizes the multi-effect leakage point injection and pressure monitoring and leakage detection functions, thereby effectively improving the leakage prevention monitoring accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a fluid leakage prevention alarm device in a storage tank lined with a polytetrafluoroethylene plate according to the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 4 For the present invention Figure 2 A schematic cross-sectional structure diagram of ; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 7 For the present invention Figure 4 A schematic diagram of the local enlarged structure at D in the middle; Figure 8 It is a structural schematic diagram of the valve tank and the injection valve of the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the local enlarged structure at E in the middle; Fig.10 It is a schematic diagram of the structure of the spoiler and the shaft sleeve of the present invention.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bracket; 2. Valve tank; 3. Transmission motor; 4. Rotary tank; 5. Leakage detection ring cavity; 6. Sealing ring capsule; 7. Moving ring; 8. Brush ring; 9. Scraper ring; 10. Spoiler; 11. Liquid outlet valve; 12. Liquid injection valve; 13. Liquid level probe; 14. Central control host; 15. Injection and pressure pump; 16. First conduit; 17. Second conduit; 18. Third conduit; 19. First air pressure probe; 20. Central ring pipe; 21. The second air pressure probe; 22, tail ring tube; 23, third air pressure probe; 24, double-headed motor; 25, transmission screw; 26, guide shaft; 27, guide rod; 28, bushing; 29, driving gear; 30, driven gear ring; 31, injection and pressure wheel; 32, corrugated conduit; 33, injection and pressure hole; 34, test wheel; 35, pressure measuring hole; 36, stirring shaft; 37, stirring rod; 38, differential shaft; 39, solenoid valve. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] like Figure 1-10 As shown, a fluid leakage alarm device in a storage tank lined with a PTFE plate comprises a bracket 1, a valve tank 2 is fixedly mounted on the bracket 1, a liquid outlet valve 11 is connected to the bottom of the valve tank 2, a liquid injection valve 12 is connected to the top of the valve tank 2, a liquid level probe 13 for monitoring the liquid level height inside the storage cavity is installed inside the valve tank 2, a central control host 14 is installed on the end face of the valve tank 2, and the central control host 14 has a built-in sound and light alarm module; The inner wall of the bracket 1 is rotatably connected to a rotary pot 4 driven by a transmission motor 3; The inner walls of the valve tank 2 and the rotary tank 4 are lined with polytetrafluoroethylene sheets; The interior of the rotary tank 4 is provided with a leak detection ring cavity 5 and a storage cavity which are isolated from each other from the outside to the inside, and the storage cavity is connected with the valve tank 2 in rotation; A sealing ring bag 6 is fixedly installed on the inner wall of the leak detection ring cavity 5, and a pressure monitoring component cooperating with the storage cavity and the leak detection ring cavity 5 is installed on the valve tank 2; A transmission module is installed on the inner wall of the valve tank 2, and a moving ring 7 is transmission-connected to the transmission module. A brush ring 8 is rotatably connected to the moving ring 7. The brush ring 8 is driven by the transmission module. A scraper ring 9 is installed on the surface of the brush ring 8. A group of spoilers 10 distributed in a circular array are installed on the brush ring 8. The outer surfaces of the scraper ring 9 and the brush ring 8 are both in contact with the rotary tank 4. An injection pressure leak detection assembly is installed in the scraper ring 9, and the injection pressure leak detection assembly is connected to the pressure monitoring component.

[0029] As an implementation mode, the pressure monitoring component includes an injection and pressure pump 15, which is fixedly connected to the valve tank 2, and the air outlet port of the injection and pressure pump 15 is respectively connected to the first conduit 16, the second conduit 17 and the third conduit 18, and the first conduit 16 and the second conduit 17 are each installed with a first air pressure probe 19, and the first conduit 16, the second conduit 17 and the third conduit 18 are each installed with an electromagnetic air valve 39, the air outlet port of the first conduit 16 is connected to the storage cavity, and the second conduit 17 is connected to the injection and pressure leak detection component, and a middle ring tube 20 is fixedly installed on the bracket 1, and a sealed cavity is opened inside the middle ring tube 20, and the sealed cavity is connected to the inner cavity of the sealing ring bag 6, and the third conduit 18 is fixedly connected to the sealed cavity, and a second air pressure probe 21 for monitoring the internal air pressure of the sealed cavity is fixedly installed on the middle ring tube 20, and the two first air pressure probes 19 and the second air pressure probes 21 are both data-connected to the central control host 14.

[0030] When the rotary tank 4 is in use, liquid is stored in the storage chamber, and the highest liquid level of the liquid on the inner wall of the storage chamber should be maintained below the transmission screw 25, the guide shaft 26 and the guide rod 27; After the fluid is injected into the storage cavity, the injection pump 15 injects gas into the interior of the storage cavity through the first conduit 16, and finally the interior of the storage cavity has an initial gas pressure value; The gas inside the sealing ring bag 6 is fully evacuated, and the leak detection ring cavity 5 is maintained at the reference pressure; The initial air pressure value of the storage chamber is higher than the reference pressure of the leak detection ring chamber 5 .

[0031] As an embodiment, the pressure monitoring component also includes a tail ring tube 22 fixed on the bracket 1, the inner cavity of the tail ring tube 22 is connected to the leakage detection ring cavity 5, and a third air pressure probe 23 for monitoring the internal air pressure of the leakage detection ring cavity 5 is fixedly installed inside the tail ring tube 22, and the data end of the third air pressure probe 23 is connected to the data of the central control host 14.

[0032] When the rotary tank 4 is working normally, when the data change amplitude of the initial air pressure value inside the storage chamber or the data change amplitude of the reference pressure in the leak detection ring chamber 5 exceeds the set threshold value, the central control host 14 determines that the storage chamber or the rotary tank 4 is leaking. When the central control host 14 determines that the storage tank is in a leaking state, the injection pump 15 starts to work and pressurizes the interior of the sealing ring capsule 6 sufficiently until the sealing ring capsule 6 fully seals and fills the leak detection ring chamber 5. Through the sufficient injection pressure and sealing filling of the sealing ring capsule 6, the leakage of the storage chamber is blocked to a certain extent, thereby slowing down or stopping the leakage of the storage chamber.

[0033] As an embodiment, the transmission module includes a double-headed motor 24 fixed on the valve tank 2, a transmission screw 25, a guide shaft 26 and a guide rod 27 fixed on the valve tank 2, which are rotatably connected to the valve tank 2, and the two output shaft ends of the double-headed motor 24 are respectively connected to the transmission screw 25 and the guide shaft 26, the transmission screw 25 is connected to the moving ring 7, the guide rod 27 is slidably connected to the moving ring 7, and the brush ring 8 is driven by the guide shaft 26.

[0034] When the fluid is stored in the storage chamber, the rotary pot 4 rotates periodically for a specified period. During the non-rotation period of the rotary pot 4, the double-headed motor 24 works periodically and reciprocates within the set period. During the working cycle of the double-headed motor 24, the moving ring 7 reciprocates inside the rotary pot 4 according to the length of the rotary pot 4. When the moving ring 7 reciprocates, the injection pressure leak detection assembly works.

[0035] As an implementation mode, the inner wall of the movable ring 7 is rotatably connected with a shaft sleeve 28, and the interior of the shaft sleeve 28 is fixedly provided with a shaft groove with openings at both ends and slidably connected to the guide shaft 26. The cross-sections of the shaft groove and the guide shaft 26 are both regular polygons. A driving gear 29 is fixedly mounted on the shaft sleeve 28, and a driven gear ring 30 is fixedly mounted on the inner wall of the brush ring 8. The driving gear 29 is transmission-connected to the driven gear ring 30.

[0036] When the double-headed motor 24 is working, the guide shaft 26 drives the sleeve 28 to rotate at a set speed. After the sleeve 28 rotates, it drives the brush ring 8 to rotate. After the brush ring 8 rotates, the inner wall of the storage chamber is brushed during the movement of the moving ring 7. The brushing effect of the inner wall of the storage chamber is achieved to effectively ensure and improve the cleanliness of the inner wall of the storage chamber, and the leakage points inside the storage chamber are fully exposed. The rotation of the brush ring 8 makes the concentration of the fluid inside the storage chamber uniform, and finally makes the corrosion degree in the storage chamber uniform.

[0037] As an embodiment, the injection pressure leak detection assembly includes an injection pressure wheel 31 fixed on the scraper ring 9, an injection pressure cavity is fixedly opened inside the injection pressure wheel 31, a corrugated conduit 32 is connected to the injection pressure cavity, the other end of the corrugated conduit 32 is connected to the second conduit 17, an injection pressure hole 33 connected to the injection pressure cavity is opened at the top of the injection pressure wheel 31, a test wheel 34 is rotatably sleeved on the injection pressure wheel 31, and the rotation axis of the test wheel 34 is perpendicular to the axis of the rotary tank 4; The test wheel 34 is provided with a group of pressure measuring holes 35 distributed in a circumferential array and cooperating with the pressure injection holes 33 .

[0038] When the moving ring 7 moves, the interior of the injection and pressure chamber is sufficiently pressurized, and when pressurized, the air pressure inside the injection and pressure chamber is higher than the initial pressure value in the storage chamber. After the test wheel 34 moves, the injection pressure detection of the rotary tank 4 is performed along the inner wall of the storage chamber through the pressure measuring hole 35. When the data change amplitude of the air pressure probe on the second conduit 17 exceeds the threshold value, it is judged that the inner cavity of the rotary tank 4 has a leak. After the central control host 14 detects the leakage condition inside the rotary tank 4, it automatically alarms and reminds.

[0039] The inner wall of the rotary pot 4 is rotatably connected to a stirring shaft 36, and a group of stirring rings distributed in a linear array are installed on the stirring shaft 36 and at a position corresponding to the inner side of the storage cavity, and each stirring ring is installed with a group of stirring rods 37 distributed in a circular array. The inner wall of the bracket 1 is rotatably connected to a differential shaft 38, and differential bevel gears are installed on the differential shaft 38. Side bevel gears are installed on the rotary pot 4 and the stirring shaft 36, and the two side bevel gears are both connected to the differential bevel gear transmission, and the two side bevel gears are respectively arranged on both sides of the differential bevel gear.

[0040] When the rotary pot 4 rotates, the stirring shaft 36 rotates at a set speed. After the stirring shaft 36 rotates, the fluid is stirred.

[0041] As a supplement, the central control host 14 can use a high-performance industrial control computer (IPC) or a programmable logic controller (PLC); through the data interface connection with the first air pressure probe 19, the second air pressure probe 21, the third air pressure probe 23 and other sensors, the air pressure data in the storage cavity, the leak detection ring cavity and the sealing cavity are collected in real time. At the same time, the liquid level data from the liquid level probe 13 is received to monitor the fluid level in the storage cavity. For existing data collection, analysis and decision-making execution methods, no further elaboration is made here. Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A fluid leakage alarm device for a storage tank lined with polytetrafluoroethylene sheets, comprising a bracket (1), characterized in that: A valve tank (2) is fixedly mounted on the bracket (1); a rotary tank (4) driven by a transmission motor (3) is rotatably connected to the inner wall of the bracket (1); mutually isolated leak detection ring cavities (5) and storage cavities are sequentially provided inside the rotary tank (4) from the outside to the inside; the storage cavity is rotatably connected to the valve tank (2); a sealing ring capsule (6) is fixedly mounted on the inner wall of the leak detection ring cavity (5); a pressure monitoring component cooperating with the storage cavity and the leak detection ring cavity (5) is mounted on the valve tank (2); and a pressure monitoring component cooperating with the storage cavity and the leak detection ring cavity (5) is mounted on the inner wall of the valve tank (2). A transmission module is provided, wherein a moving ring (7) is transmission-connected to the transmission module, a brush ring (8) is rotationally connected to the moving ring (7), the brush ring (8) is driven by the transmission module, a scraper ring (9) is installed on the surface of the brush ring (8), a group of spoilers (10) distributed in a circular array are installed on the brush ring (8), the outer surfaces of the scraper ring (9) and the brush ring (8) are both in contact with the rotary tank (4), an injection pressure leak detection component is installed in the scraper ring (9), and the injection pressure leak detection component is connected to a pressure monitoring component.

2. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 1 is characterized in that: The bottom of the valve tank (2) is connected to a liquid outlet valve (11), the upper part of the valve tank (2) is connected to a liquid injection valve (12), a liquid level probe (13) for monitoring the liquid level inside the storage chamber is installed inside the valve tank (2), and a central control host (14) is installed on the end surface of the valve tank (2), and the central control host (14) has a built-in sound and light alarm module.

3. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 2 is characterized in that: The inner walls of the valve tank (2) and the rotary tank (4) are lined with polytetrafluoroethylene sheets.

4. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 1 is characterized in that: The pressure monitoring component comprises an injection pump (15), the injection pump (15) being fixedly connected to the valve tank (2), the outlet port of the injection pump (15) being respectively connected to a first conduit (16), a second conduit (17) and a third conduit (18), the first conduit (16) and the second conduit (17) being both provided with a first air pressure probe (19), the first conduit (16), the second conduit (17) and the third conduit (18) being both provided with an electromagnetic air valve (39), the outlet port of the first conduit (16) being connected to the storage tank (2), and the second conduit (17) and the third conduit (18) being provided with a first air pressure probe (19). The second conduit (17) is connected to the injection pressure leak detection component, a middle ring tube (20) is fixedly installed on the bracket (1), a sealed cavity is opened inside the middle ring tube (20), and the sealed cavity is connected to the inner cavity of the sealing ring bag (6), the third conduit (18) is fixedly connected to the sealed cavity, and a second air pressure probe (21) for monitoring the air pressure inside the sealed cavity is fixedly installed on the middle ring tube (20), and both the first air pressure probe (19) and the second air pressure probe (21) are connected to the data of the central control host (14).

5. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 4 is characterized in that: The pressure monitoring component further comprises a tail ring tube (22) fixed on the bracket (1); the inner cavity of the tail ring tube (22) is in communication with the leak detection ring cavity (5); a third air pressure probe (23) for monitoring the internal air pressure of the leak detection ring cavity (5) is fixedly installed inside the tail ring tube (22); a data end of the third air pressure probe (23) is data-connected to the central control host (14).

6. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 5 is characterized in that: The transmission module comprises a double-headed motor (24) fixed on the valve tank (2), a transmission screw (25) rotatably connected to the valve tank (2), a guide shaft (26) and a guide rod (27) fixed to the valve tank (2), two output shaft ends of the double-headed motor (24) are respectively transmission-connected to the transmission screw (25) and the guide shaft (26), the transmission screw (25) is transmission-connected to the moving ring (7), the guide rod (27) is slidably connected to the moving ring (7), and the brush ring (8) is driven by the guide shaft (26).

7. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 6 is characterized in that: The inner wall of the movable ring (7) is rotatably connected to a shaft sleeve (28); a shaft groove with two ends open and slidably connected to the guide shaft (26) is fixedly opened inside the shaft sleeve (28); the cross-sections of the shaft groove and the guide shaft (26) are both regular polygons; a driving gear (29) is fixedly mounted on the shaft sleeve (28); a driven gear ring (30) is fixedly mounted on the inner wall of the brush ring (8); the driving gear (29) is transmission-connected to the driven gear ring (30).

8. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 7 is characterized in that: The injection pressure leak detection assembly comprises an injection pressure wheel (31) fixed on a scraper ring (9); an injection pressure cavity is fixedly opened inside the injection pressure wheel (31); the injection pressure cavity is connected to a corrugated conduit (32); the other end of the corrugated conduit (32) is connected to a second conduit (17); an injection pressure hole (33) connected to the injection pressure cavity is opened at the top of the injection pressure wheel (31); a test wheel (34) is rotatably sleeved on the injection pressure wheel (31); a group of pressure measuring holes (35) distributed in a circumferential array and cooperating with the injection pressure hole (33) are opened on the test wheel (34).

9. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 8, characterized in that: The rotation axis of the test wheel (34) is perpendicular to the axis of the rotary pot (4).

10. The anti-leakage alarm device for fluid in a storage tank lined with polytetrafluoroethylene board according to claim 1, characterized in that: The inner wall of the rotary pot (4) is rotatably connected to a stirring shaft (36); a group of stirring rings distributed in a linear array are mounted on the stirring shaft (36) and at positions corresponding to the inner side of the storage chamber; each stirring ring is mounted on a group of stirring rods (37) distributed in a circular array; the inner wall of the bracket (1) is rotatably connected to a differential shaft (38); a differential bevel gear is mounted on the differential shaft (38); side bevel gears are mounted on the rotary pot (4) and the stirring shaft (36); two side bevel gears are both transmission-connected to the differential bevel gears; and the two side bevel gears are respectively arranged on both sides of the differential bevel gears.

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