Pollution blockage monitoring device for reverse osmosis membrane

Abstract

The invention relates to the technical field of monitoring devices, and discloses a reverse osmosis membrane pollution and blockage monitoring device which comprises a supporting seat, an indicating mechanism for displaying the pollution and blockage condition of a reverse osmosis membrane is arranged on the supporting seat, and a front piston pipe, a communicating pipe and a rear piston pipe are sequentially arranged on the supporting seat in a communicating mode. A front piston rod and a rear piston rod are arranged in each of the front piston pipe and the rear piston pipe in a sliding and sealing manner, one end of the front piston pipe is communicated with a front water inlet pipe, one end of the rear piston pipe is communicated with a rear water inlet pipe, and a warning mechanism for giving an alarm to the sewage blocking condition is arranged on a communicating pipe; compared with the prior art, the device has the beneficial effects that by comparing the pressure difference between the front piston pipe and the rear piston pipe, the sensitivity of sensing the pressure change is improved, the pollution and blockage degree of the reverse osmosis membrane is intuitively reflected, the reverse osmosis membrane is prevented from being damaged by pollution and blockage, and the service life of the reverse osmosis membrane is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and in particular to a reverse osmosis membrane fouling monitoring device. Background Art

[0002] In modern industrial production and many civilian fields, reverse osmosis membrane technology has become the core link in water purification, seawater desalination, pure water preparation and other processes due to its high-efficiency separation performance. However, during long-term operation, reverse osmosis membranes are extremely vulnerable to various impurities in raw water, such as microorganisms, colloids, organic substances and dissolved salts, etc., resulting in fouling on the membrane surface. Reverse osmosis membrane fouling will not only significantly reduce the flux of the reverse osmosis membrane, increase the operating energy consumption, but also greatly shorten the service life of the membrane, seriously affecting the stable operation and economic benefits of the entire reverse osmosis system.

[0003] Currently, the following main monitoring methods for reverse osmosis membrane fouling exist. One is regular manual disassembly and inspection, where staff rely on experience and the naked eye to observe the accumulation of dirt on the membrane surface. This method not only consumes a large amount of manpower and time costs, but also, due to the long inspection interval, it is difficult to capture the subtle changes in the initial stage of fouling, and it is often only discovered when the fouling has developed to a relatively serious level. At this time, the reverse osmosis membrane may have suffered irreversible damage. Another common method is online water quality monitoring, using sensors to detect water quality parameters of the reverse osmosis membrane product water, such as conductivity, turbidity, etc. Although this method can reflect the filtration effect of the membrane to a certain extent, when the water quality parameters change significantly, it means that the fouling has had a greater impact on the membrane performance, and early warning cannot be achieved. Moreover, the water quality is interfered by various factors, and relying solely on water quality parameters to judge the fouling situation has deficiencies in both accuracy and sensitivity. In addition, there are also some that adopt pressure monitoring methods, measuring the pressure difference before and after the membrane through ordinary pressure gauges installed before and after the membrane. However, ordinary pressure gauges can only display a single pressure value, cannot intuitively reflect the fouling degree, and are relatively insensitive to pressure changes, making it difficult to detect weak initial pressure fluctuations and unable to meet the accurate monitoring requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a reverse osmosis membrane fouling monitoring device.

[0005] To solve the above technical problems, the technical solution provided by the present invention is as follows: A reverse osmosis membrane fouling monitoring device, including a support base, on which there is an indicating mechanism for displaying the fouling condition of the reverse osmosis membrane. The support base is sequentially connected with a front piston tube, a connecting tube, and a rear piston tube. Inside the front piston tube and the rear piston tube, there are respectively a front piston rod and a rear piston rod slidingly and sealingly arranged. One end of the front piston tube is connected with a front water inlet pipe, and one end of the rear piston tube is connected with a rear water inlet pipe. The indicating mechanism includes a sliding block sliding inside the connecting tube. The two ends of the sliding block are respectively connected with the front piston rod and the rear piston rod. Inside the connecting tube, there is an indicating worm gear rotating along with the sliding of the sliding block. One end of the indicating worm gear extending out of the connecting tube is provided with a pointer. On the connecting tube, there is a scale for cooperating with the pointer to display the fouling condition. On the connecting tube, there is a warning mechanism for alarming the fouling condition along with the rotation of the indicating worm gear.

[0006] As an improvement, an upper sliding block is slidingly arranged inside the connecting tube. Inside the connecting tube, there is a fixed support rod. On the fixed support rod, there is a magnifying fork rotating. The magnifying fork is of an unequal-arm structure. The two ends of the magnifying fork are respectively rotationally matched with the upper sliding block and the lower sliding block. On one side of the upper sliding block, there is a connecting lever. Inside the connecting tube, there is a connecting fork rotationally matched with the connecting lever. On one side of the connecting lever, there is a sector gear, and the sector gear drives the indicating worm gear to rotate through a transmission mechanism.

[0007] As an improvement, the warning mechanism includes a fixed base arranged on the connecting tube. On the fixed base, there are symmetrically rotating warning grooved pulleys. On the warning grooved pulleys, there is a sound and light alarm mechanism. On the fixed base, there is a power mechanism for driving the sound and light alarm mechanism to alarm along with the rotation of the indicating worm gear.

[0008] As an improvement, the power mechanism includes a warning sliding plate and a matching sliding plate slidingly arranged on the fixed base. On the matching sliding plate, there is a matching spring connected with the fixed base. On the warning sliding plate and the matching sliding plate, there are respectively a reciprocating grooved pulley and a matching grooved pulley rotating. The reciprocating grooved pulley, the matching grooved pulley, and the warning grooved pulley are connected by a belt. One end of the indicating worm gear extending out of the connecting tube is provided with an indicating turntable, and the indicating turntable is of a conch-shaped structure. On the warning sliding plate, there is a fixed lever rotationally abutted against the indicating turntable.

[0009] As an improvement, the sound and light alarm mechanism includes an alarm rotating rod arranged on the warning grooved pulley. Along the circumferential direction of the alarm rotating rod, there are a plurality of alarm springs arranged. The alarm rotating rod is connected with an alarm ball head through the alarm spring. On the fixed base, there are a plurality of fixed spring seats arranged. The fixed spring seats are arranged along the circumferential direction of the alarm rotating rod. On the fixed spring seats, there are echo cylinders matching the alarm ball head.

[0010] As an improvement, a protective cover is provided at the upper end of the fixed base, a warning light is provided at one end of the alarm rotating rod extending out of the protective cover, and a warning light cover cooperating with the warning light is provided on the protective cover.

[0011] As an improvement, a preload base plate is provided in the front piston tube, a preload spring connected to the front piston rod is provided on the preload base plate, a limit block cooperating with the front piston rod is provided in the front piston tube, and a pressure relief pipe is connected in the front piston tube.

[0012] As an improvement, the transmission mechanism includes an indicating gear rotatably arranged at one end of the fixed support rod and meshing with the sector gear, and an indicating worm meshing with the indicating worm wheel is provided on one side of the indicating gear.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by comparing the pressure difference between the front piston tube and the rear piston tube, the sensitivity of the perception of pressure changes is improved, and early warning is provided for the staff, so that they can take measures when the fouling problem is not serious, so as to avoid further development of fouling and cause greater damage to the reverse osmosis membrane, and extend the service life of the reverse osmosis membrane. At the same time, the degree of fouling of the reverse osmosis membrane is intuitively reflected, and the staff can accurately judge the actual condition of the reverse osmosis membrane based on this, improve the accuracy and convenience of judging the fouling condition of the reverse osmosis membrane, and provide a more reliable basis for subsequent maintenance decisions. Furthermore, while realizing the monitoring operation of the fouling condition of the reverse osmosis membrane, it is linked with the warning mechanism to notify the staff in time through the alarm signal. Furthermore, since the device of the present invention monitors the fouling condition of the reverse osmosis membrane through the pressure difference change before and after the reverse osmosis membrane, it is less affected by external environmental factors. In harsh environments such as high temperature, high humidity, and strong vibration, as long as there is a difference in the water flow pressure before and after the reverse osmosis membrane, it can work stably, thereby continuously and accurately monitoring the fouling condition of the reverse osmosis membrane, providing reliable guarantee for the stable operation of the system. Specifically: 1. The amplifying fork structure can amplify the tiny displacement of the lower slider caused by slight fouling of the reverse osmosis membrane. At the same time, the indicator worm wheel and the indicator worm can cooperate to amplify the angle of rotation of the indicator gear driven by the sector gear, so that the pointer can rotate significantly on the dial, thereby greatly improving the monitoring sensitivity of the device of the present invention to the tiny changes in the initial fouling of the reverse osmosis membrane, and can more accurately reflect the degree of fouling, providing the staff with earlier and more accurate fouling status information. In addition, the meshing and rotational cooperation between the amplifying fork, the connecting lever, the connecting fork, the sector gear, the indicator gear, the indicator worm and the indicator worm wheel can stably transmit and amplify the displacement of the lower slider, ensuring that the device can work stably and reliably during long-term operation, and reducing the monitoring error or failure caused by the failure of the transmission components; 2. The warning mechanism uses a reciprocating sprocket, a mating sprocket, and a warning sprocket to ensure stable transmission of the alarm power through belt drive. During the long-term operation of the device of the present invention, the belt drive can adapt to a certain degree of displacement change and vibration, ensuring that the warning sprocket can rotate stably, thus reliably triggering the sound and light alarm mechanism, reducing the risk of alarm failure caused by component wear or loosening. The warning mechanism uses the rotation of the indicating worm as the core signal source for alarm triggering, enhancing the systematicness and coherence of the monitoring and alarm of the reverse osmosis membrane fouling of the device of the present invention; 3. The sound and light alarm mechanism is composed of an alarm rotating rod, an alarm spring, an alarm ball head, and an echo cylinder, and is not easily affected by factors such as circuit failures. Moreover, through the amplification of sound by the echo cylinder, it can be clearly transmitted in a complex working environment, effectively improving the recognition rate and propagation range of the alarm sound, enhancing the reliability and effectiveness of the alarm. In addition, the warning light cooperates with the warning light cover, causing the light to flash and focus during rotation, which can attract the attention of the staff more effectively. In a dim working place or an environment with a large number of people, it can quickly draw attention, effectively improving the timeliness and visibility of the alarm, and enhancing the efficiency of the entire alarm system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a reverse osmosis membrane fouling monitoring device of the present invention.

[0015] Figure 2 is an exploded view of a reverse osmosis membrane fouling monitoring device of the present invention.

[0016] Figure 3 is a cross-section of a reverse osmosis membrane fouling monitoring device of the present invention Figure 1 .

[0017] Figure 4 is a cross-section of a reverse osmosis membrane fouling monitoring device of the present invention Figure 2 .

[0018] Figure 5 is a schematic structural diagram of the cooperation state between the indicating mechanism and the warning mechanism of a reverse osmosis membrane fouling monitoring device of the present invention Figure 1 .

[0019] Figure 6 is a schematic structural diagram of the cooperation state between the indicating mechanism and the warning mechanism of a reverse osmosis membrane fouling monitoring device of the present invention Figure 2 .

[0020] Figure 7 is an exploded view of the indicating mechanism of a reverse osmosis membrane fouling monitoring device of the present invention.

[0021] Figure 8 is a schematic structural diagram of the warning mechanism of a reverse osmosis membrane fouling monitoring device of the present invention.

[0022] Figure 9 It is an explosion diagram of a warning mechanism of a reverse osmosis membrane fouling monitoring device of the present invention.

[0023] Figure 10 It is a schematic structural diagram of an acoustic-optical alarm mechanism of a reverse osmosis membrane fouling monitoring device of the present invention.

[0024] Figure 11 It is a cross-sectional view of an acoustic-optical alarm mechanism of a reverse osmosis membrane fouling monitoring device of the present invention.

[0025] As shown in the figure: 1. Support base; 11. Front piston tube; 111. Front piston rod; 112. Front sealing plate; 113. Front water inlet pipe; 12. Rear piston tube; 121. Rear piston rod; 122. Rear sealing plate; 123. Rear water inlet pipe; 13. Connecting pipe; 131. Fixed support rod; 14. Pre-tightening bottom plate; 141. Pre-tightening spring; 15. Limit block; 16. Pressure relief pipe; 2. Indicator mechanism; 21. Lower slider; 22. Upper slider; 221. Connecting lever; 222. Connecting fork; 223. Sector gear; 23. Amplifying fork; 24. Indicator gear; 241. Indicator worm; 25. Indicator worm gear; 251. Pointer; 252. Indicator turntable; 26. Installation cover; 261. Dial; 3. Warning mechanism; 31. Fixed base; 32. Warning slide plate; 321. Fixed lever; 322. Reciprocating grooved wheel; 33. Matching slide plate; 331. Matching spring; 332. Matching grooved wheel; 34. Warning grooved wheel; 35. Acoustic-optical alarm mechanism; 351. Alarm rotating rod; 352. Alarm spring; 353. Alarm ball head; 354. Fixed spring seat; 355. Echo tube; 356. Warning lamp; 357. Warning light cover; 36. Protective cover. Detailed implementation manners

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Combined with the attached Figure 1 、attached Figure 2 、attached Figure 3 、attached Figure 4 and attached Figure 5As shown in the figure, a reverse osmosis membrane fouling monitoring device includes a support base 1. An indicating mechanism 2 for displaying the fouling condition of the reverse osmosis membrane is provided on the support base 1. A front piston tube 11, a connecting tube 13, and a rear piston tube 12 are sequentially connected and communicated on the support base 1. A front piston rod 111 and a rear piston rod 121 are slidably and sealingly arranged in the front piston tube 11 and the rear piston tube 12 respectively. The front piston tube 11 and the rear piston tube 12 are respectively movably and sealingly connected with a front sealing plate 112 and a rear sealing plate 122 by threads. A front water inlet pipe 113 is communicated on the front sealing plate 112. The front water inlet pipe 113 is in water flow communication with the front end of the reverse osmosis membrane. A rear water inlet pipe 123 is communicated on the rear sealing plate 122. The rear water inlet pipe 123 is in water flow communication with the rear end of the reverse osmosis membrane; A pre-tightening bottom plate 14 is arranged in the front piston tube 11. A pre-tightening spring 141 connected to the front piston rod 111 is arranged on the pre-tightening bottom plate 14. A limit block 15 cooperating with the front piston rod 111 is arranged in the front piston tube 11. A pressure relief pipe 16 is communicated in the front piston tube 11. The pressure relief pipe 16 is communicated with the raw water storage mechanism. The indicating mechanism 2 includes a sliding block 21 slidably arranged in the connecting tube 13. The two ends of the sliding block 21 are respectively connected to the front piston rod 111 and the rear piston rod 121. The indicating mechanism 2 displays the fouling condition of the reverse osmosis membrane as the sliding block 21 slides. A warning mechanism 3 for alarming the fouling condition is arranged on the connecting tube 13 along with the indicating mechanism 2.

[0028] The working principle of the present invention: In the initial state, the pre-tightening spring 141 in the front piston tube 11 is in a pre-tightened state. Since one end of the pre-tightening spring 141 is connected to the pre-tightening bottom plate 14 and the other end is connected to the front piston rod 111, the pre-tightening spring 141 gives the front piston rod 111 a thrust towards the front water inlet pipe 113. At the same time, the limit block 15 restricts the excessive movement of the front piston rod 111 to ensure the stability of the initial state of the front piston rod 111; When the reverse osmosis membrane is fouled, the filtration performance of the reverse osmosis membrane decreases. The water flow pressure at the front end on one side of the front piston tube 11 increases, and the water flow pressure at the rear end in the rear piston tube 12 decreases. Under the action of the pressure difference, the front piston rod 111 is stressed and slides along the axis of the front piston tube 11 in the direction close to the connecting pipe 13, overcoming the elastic force of the pre-tightening spring 141. Since both ends of the lower slider 21 are connected to the front piston rod 111 and the rear piston rod 121 respectively, the sliding of the front piston rod 111 drives the lower slider 21 to move in the connecting pipe 13. The position change of the lower slider 21 is displayed through the indicating mechanism 2, thereby reflecting the fouling condition of the reverse osmosis membrane. Further, the warning mechanism 3 is triggered to remind the staff that the reverse osmosis membrane is fouled. Furthermore, when the fouling condition of the reverse osmosis membrane is relatively serious, the front piston rod 111 moves to make the pressure relief pipe 16 in an open state. At this time, the raw water that has not been filtered by the reverse osmosis membrane flows back to the raw water storage mechanism through the pressure relief pipe 16, avoiding irreversible damage to the reverse osmosis membrane and preventing the unfiltered raw water from flowing into the rear end water flow of the reverse osmosis membrane to cause pollution.

[0029] Combined with the attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 6 and attached Figure 7 As shown, an indicating worm gear 25 that rotates with the sliding of the lower slider 21 is rotatably provided in the connecting pipe 13. One end of the indicating worm gear 25 extending out of the connecting pipe 13 is provided with a pointer 251. An installation cover 26 is provided on the connecting pipe 13, and a scale plate 261 that cooperates with the pointer 251 to display the fouling condition is provided on the installation cover 26. An upper slider 22 is slidably provided in the connecting pipe 13. A fixed support rod 131 is provided in the connecting pipe 13. An amplifying fork 23 is rotatably provided on the fixed support rod 131. The amplifying fork 23 is arranged with unequal arms. The distance between the connection point of the amplifying fork 23 and the fixed support rod 131 and the lower slider 21 is less than the distance from the upper slider 22. Both ends of the amplifying fork 23 are rotatably matched with the upper slider 22 and the lower slider 21 respectively. A connecting lever 221 is provided on one side of the upper slider 22. A connecting fork 222 that rotates in cooperation with the connecting lever 221 is rotatably provided in the connecting pipe 13. A sector gear 223 is provided on one side of the connecting lever 221. The sector gear 223 drives the indicating worm gear 25 to rotate through a transmission mechanism. The transmission mechanism includes an indicating gear 24 that is rotatably provided at one end of the fixed support rod 131 and meshes with the sector gear 223. An indicating worm 241 that meshes with the indicating worm gear 25 is provided on one side of the indicating gear 24. The indicating worm 241 and the indicating gear 24 are coaxially arranged.

[0030] The working principle of the lower slider 21 driving the pointer 251 to rotate is as follows: when the reverse osmosis membrane is blocked by dirt, the water pressure in the front piston tube 11 increases, and the front piston rod 111 slides toward the connecting tube 13 under the action of the pressure difference, and the lower slider 21 slides synchronously in the connecting tube 13; During this process, the amplifying fork 23 that is in rotation with the lower slider 21 rotates around the fixed support rod 131. Since the amplifying fork 23 is an unequal arm structure and the connection point with the fixed support rod 131 is closer to the lower slider 21 and farther from the upper slider 22, according to the lever principle, the small displacement of the lower slider 21 is amplified by the amplifying fork 23 and converted into a relatively large displacement of the upper slider 22, so that the subsequent transmission components can respond more sensitively to the small pressure changes caused by the fouling of the reverse osmosis membrane. Furthermore, the movement of the upper slider 22 drives the connecting lever 221 to move, and the connecting lever 221 cooperates with the connecting fork 222 rotatably arranged in the connecting pipe 13 to convert the linear motion of the upper slider 22 into the rotation of the connecting fork 222, thereby driving the fan gear 223 connected thereto to rotate. When the fan gear 223 rotates, it drives the indicating gear 24 meshing therewith to rotate, and the coaxially arranged indicating worm 241 rotates synchronously. When the indicating worm 241 rotates, it drives the indicating worm wheel 25 meshing therewith to rotate, and the pointer 251 rotates on the dial 261 accordingly. During the transmission process, the displacement of the lower slider 21 is amplified, and the pointer 251 can more clearly indicate the change in the degree of fouling of the reverse osmosis membrane. The scale on the dial 261 corresponds to the degree of fouling of the reverse osmosis membrane, providing the staff with an intuitive and clear display of the fouling status.

[0031] Combined with Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 and attached Figure 9 As shown, the warning mechanism 3 includes a fixed base 31 arranged on the connecting pipe 13, a warning groove wheel 34 is symmetrically rotatably provided on the fixed base 31, a sound and light alarm mechanism 35 is provided on the warning groove wheel 34, a power mechanism is provided on the fixed base 31 for driving the sound and light alarm mechanism 35 to alarm as the indicating worm gear 25 rotates, the power mechanism includes a warning slide plate 32 and a matching slide plate 33 slidably arranged on the fixed base 31, a matching spring 331 connected to the fixed base 31 is provided on the matching slide plate 33, a reciprocating groove wheel 322 and a matching groove wheel 332 are rotatably provided on the warning slide plate 32 and the matching slide plate 33 respectively, the reciprocating groove wheel 322, the matching groove wheel 332 and the warning groove wheel 34 are connected by a belt, an indicating turntable 252 is provided at one end of the indicating worm gear 25 extending out of the connecting pipe 13, the indicating turntable 252 is a conch-shaped structure, and a fixed lever 321 is provided on the warning slide plate 32 for rotatably abutting against the indicating turntable 252.

[0032] Working principle of the warning mechanism 3: As the fouling of the reverse osmosis membrane worsens, the indicating worm gear 25 drives the indicating turntable 252 to rotate. During the rotation of the indicating turntable 252 with a conch-shaped structure, the warning slide plate 32 is driven to slide on the fixed base 31 through the fixed lever 321. When the warning slide plate 32 slides, the reciprocating grooved pulley 322 rotatably arranged thereon moves accordingly. The cooperating slide plate 33 moving relative to the warning slide plate 33 overcomes the elastic force of the cooperating spring 331 to drive the cooperating grooved pulley 332 to maintain a relative position change with the reciprocating grooved pulley 322. Since the reciprocating grooved pulley 322, the cooperating grooved pulley 332 and the warning grooved pulley 34 are connected by a belt, when the reciprocating grooved pulley 322 and the cooperating grooved pulley 332 have a relative displacement, the belt drives the warning grooved pulley 34 to rotate; Furthermore, during the rotation of the warning grooved pulley 34, the sound and light alarm mechanism 35 provided thereon is triggered, and the sound and light alarm mechanism 35 emits a flashing light and a sound alarm to remind the staff that the fouling condition of the reverse osmosis membrane has reached a level that requires attention and treatment. Moreover, the frequency of the flashing light and the sound alarm emitted by the sound and light alarm mechanism 35 is an indicator of the fouling speed of the reverse osmosis membrane. In actual use, it is found that the fouling condition of the reverse osmosis membrane usually does not increase linearly, and its fouling process will be jointly affected by various factors, such as the raw water quality. If the content of impurities and microorganisms in the water is high, the fouling may increase relatively quickly in the initial stage, while for some membranes with strong anti-fouling ability, the fouling growth is relatively slow. Therefore, the fouling speed of the reverse osmosis membrane can be measured through the frequency of the flashing light and the sound alarm, and then a comprehensive judgment of the raw water quality, etc. can be made; Moreover, as the indicating worm gear 25 continues to rotate, the indicating turntable 252 continuously pushes the fixed lever 321, causing the warning slide plate 32 to continuously slide, thereby maintaining the alarm state of the sound and light alarm mechanism 35 until the staff has dealt with the fouling problem of the reverse osmosis membrane and the system resumes normal operation, and all components return to their initial positions.

[0033] Combined with attached Figure 6 、attached Figure 7 、attached Figure 9 、attached Figure 10 and attached Figure 11As shown in the figure, the acoustic-optic alarm mechanism 35 includes an alarm rotating rod 351 arranged on the warning grooved pulley 34. A plurality of alarm springs 352 are arranged on the alarm rotating rod 351 in the circumferential direction. The alarm rotating rod 351 is connected with an alarm ball head 353 through the alarm springs 352. A plurality of fixed spring seats 354 are arranged on the fixed base 31. The fixed spring seats 354 are arranged in the circumferential direction of the alarm rotating rod 351. An echo cylinder 355 matched with the alarm ball head 353 is arranged on the fixed spring seat 354. A protective cover 36 is arranged at the upper end of the fixed base 31. A warning light 356 is arranged at one end of the alarm rotating rod 351 extending out of the protective cover 36. A battery and a supporting light-emitting element are arranged inside the warning light 356. This is the current existing technology and will not be elaborated here. A warning light cover 357 matched with the warning light 356 is arranged on the protective cover 36.

[0034] Working principle of the acoustic-optic alarm mechanism 35: When the warning grooved pulley 34 rotates due to the increasing fouling degree of the reverse osmosis membrane, the warning grooved pulley 34 drives the alarm rotating rod 351 to rotate synchronously. A plurality of alarm springs 352 and the corresponding alarm ball heads 353 arranged in the circumferential direction make circumferential swings. When the alarm ball head 353 contacts the echo cylinder 355, the alarm ball head 353 impacts the echo cylinder 355, generating an impact sound. The cooperation between the echo cylinder 355 and the fixed spring seat 354 can amplify and transmit the impact sound, enhancing the sound transmission effect, making it clearly audible in the working environment. Since a plurality of alarm springs 352 and alarm ball heads 353 are arranged on the alarm rotating rod 351 in the circumferential direction, during the rotation process, a plurality of alarm ball heads 353 will sequentially impact the echo cylinder 355, continuously generating intermittent impact sounds, forming a continuous alarm sound to attract the attention of the staff. Further, as the alarm rotating rod 351 rotates, the warning light 356 rotates synchronously. A warning light cover 357 matched with the warning light 356 is arranged on the protective cover 36. The warning light cover 357 focuses and guides the light emitted by the warning light 356, making it more prominent in the working environment. When the warning light 356 rotates with the alarm rotating rod 351, the light flashes, giving obvious visual prompts to the staff, cooperating with the sound alarm, forming an acoustic-optic dual alarm effect, and comprehensively improving the intuitiveness and effectiveness of the alarm.

[0035] When the present invention is specifically implemented, the support base 1 is installed at a position close to the reverse osmosis membrane and convenient for observation and operation to ensure its stability and ability to bear the overall weight of the device. The front sealing plate 112 and the rear sealing plate 122 are screwed tightly on the corresponding piston pipes. Then, the front water inlet pipe 113 is connected to the front-end water flow pipeline of the reverse osmosis membrane, and the rear water inlet pipe 123 is connected to the rear-end water flow pipeline. The pressure relief pipe 16 is connected to the raw water supply mechanism to ensure firm connection and good sealing. Before starting, check whether the connections of all components are firm, whether the pointer 251 is at the initial position, and whether the acoustic-optic alarm mechanism 35 is normal. Open the water flow pipeline valves before and after the reverse osmosis membrane to allow water to flow into the front water inlet pipe 113 and the rear water inlet pipe 123. Observe whether the position of the pointer 251 is stable and stationary. If there is any abnormality, immediately close the valve for inspection; After normal operation, the staff regularly check the position of the pointer 251 on the dial 261 to judge the fouling degree of the reverse osmosis membrane. At the same time, pay attention to the acoustic-optic alarm mechanism 35 to judge the fouling speed of the reverse osmosis membrane and comprehensively judge the quality of the raw water; When stopping the monitoring, first close the water flow pipeline valves before and after the reverse osmosis membrane, then disconnect the front water inlet pipe 113 from the front-end water flow pipeline of the reverse osmosis membrane, disconnect the rear water inlet pipe 123 from the rear-end water flow pipeline, disconnect the pressure relief pipe 16 from the raw water supply mechanism, and drain the water flow in the front water inlet pipe 113 and the rear water inlet pipe 123. It can be disassembled and maintained or kept in the installed state for standby as needed.

[0036] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A reverse osmosis membrane fouling monitoring device, comprising a support base (1), wherein the support base (1) is provided with an indicator mechanism (2) for displaying the reverse osmosis membrane fouling status, characterized in that: The support seat (1) is provided with a front piston tube (11), a connecting tube (13) and a rear piston tube (12) in sequence, and a front piston rod (111) and a rear piston rod (121) are provided in the front piston tube (11) and the rear piston tube (12) in a sliding seal, one end of the front piston tube (11) is connected with a front water inlet pipe (113), and one end of the rear piston tube (12) is connected with a rear water inlet pipe (123); The indicating mechanism (2) comprises a lower slider (21) slidably arranged in the connecting tube (13), the two ends of the lower slider (21) being respectively connected to the front piston rod (111) and the rear piston rod (121), an indicating worm wheel (25) rotating along with the sliding of the lower slider (21) being provided in the connecting tube (13), a pointer (251) being provided at one end of the indicating worm wheel (25) extending out of the connecting tube (13), and a dial (261) being provided on the connecting tube (13) for displaying the fouling condition in cooperation with the pointer (251); The connecting pipe (13) is provided with a warning mechanism (3) for giving an alarm of a fouling blockage condition as the indicating worm gear (25) rotates.

2. A reverse osmosis membrane fouling monitoring device according to claim 1, characterized in that: An upper slider (22) is slidably disposed in the connecting tube (13), a fixed support rod (131) is disposed in the connecting tube (13), an enlarged shift fork (23) is rotatably disposed on the fixed support rod (131), the enlarged shift fork (23) is an unequal arm structure, two ends of the enlarged shift fork (23) are respectively rotatably matched with the upper slider (22) and the lower slider (21), and a connecting shift rod (221) is disposed on one side of the upper slider (22); A connecting fork (222) is rotatably provided in the connecting tube (13) and is rotatably matched with the connecting lever (221). A sector gear (223) is provided on one side of the connecting lever (221). The sector gear (223) drives the indicating worm gear (25) to rotate through a transmission mechanism.

3. A reverse osmosis membrane fouling monitoring device according to claim 1, characterized in that: The warning mechanism (3) comprises a fixed base (31) arranged on the connecting pipe (13), a warning groove wheel (34) symmetrically rotatably provided on the fixed base (31), a sound and light alarm mechanism (35) provided on the warning groove wheel (34), and a power mechanism for driving the sound and light alarm mechanism (35) to alarm as the indicating worm wheel (25) rotates on the fixed base (31).

4. A reverse osmosis membrane fouling monitoring device according to claim 3, characterized in that: The power mechanism comprises a warning slide plate (32) and a matching slide plate (33) which are slidably arranged on a fixed base (31); a matching spring (331) connected to the fixed base (31) is provided on the matching slide plate (33); a reciprocating groove wheel (322) and a matching groove wheel (332) are rotatably arranged on the warning slide plate (32) and the matching slide plate (33); the reciprocating groove wheel (322), the matching groove wheel (332) and the warning groove wheel (34) are connected via a belt; An indicating dial (252) is provided at one end of the indicating worm wheel (25) extending out of the connecting pipe (13); the indicating dial (252) is a conch-shaped structure; and a fixed lever (321) is provided on the warning slide plate (32) for rotationally contacting the indicating dial (252).

5. A reverse osmosis membrane fouling monitoring device according to claim 3, characterized in that: The sound and light alarm mechanism (35) comprises an alarm rotating rod (351) arranged on the alarm groove wheel (34); a plurality of alarm springs (352) are arranged on the alarm rotating rod (351) along the circumferential direction; the alarm rotating rod (351) is connected to an alarm ball head (353) via the alarm springs (352); a plurality of fixed spring seats (354) are arranged on the fixed base (31); the fixed spring seats (354) are arranged along the circumferential direction of the alarm rotating rod (351); and an echo tube (355) cooperating with the alarm ball head (353) is arranged on the fixed spring seat (354).

6. A reverse osmosis membrane fouling monitoring device according to claim 5, characterized in that: A protective cover (36) is provided at the upper end of the fixed base (31); a warning light (356) is provided at one end of the alarm rotating rod (351) extending out of the protective cover (36); and a warning light cover (357) cooperating with the warning light (356) is provided on the protective cover (36).

7. A reverse osmosis membrane fouling monitoring device according to claim 1, characterized in that: A preload base plate (14) is provided in the front piston tube (11), a preload spring (141) connected to the front piston rod (111) is provided on the preload base plate (14), a limit block (15) cooperating with the front piston rod (111) is provided in the front piston tube (11), and a pressure relief tube (16) is provided in communication with the front piston tube (11).

8. A reverse osmosis membrane fouling monitoring device according to claim 2, characterized in that: The transmission mechanism comprises an indicating gear (24) rotatably arranged at one end of the fixed support rod (131) and meshing with the sector gear (223); an indicating worm (241) meshing with the indicating worm wheel (25) is provided on one side of the indicating gear (24).

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