Pneumatic diaphragm pump for sewage treatment and use method thereof

Abstract

The invention discloses a pneumatic diaphragm pump for sewage treatment and a using method thereof.The pneumatic diaphragm pump comprises a middle valve body and a monitoring assembly, diaphragm assemblies are installed on the two sides of the middle valve body correspondingly, an air inlet assembly is installed on the front face of the middle valve body and used for conveying compressed air, a liquid inlet assembly is installed below the middle valve body, and a liquid outlet assembly is installed below the liquid inlet assembly. A liquid outlet assembly is installed above the middle valve body, and the diaphragm assembly, the liquid inlet assembly and the liquid outlet assembly are used for conveying sewage. According to the pneumatic diaphragm pump, the middle valve body, the diaphragm assembly, the air inlet assembly, the liquid inlet assembly and the liquid outlet assembly are arranged, the effect of conveying sewage in sewage treatment is achieved, through the monitoring assembly, the effect of monitoring the running state of the pneumatic diaphragm pump in real time is achieved, and the practicability is high. And the connecting box and the water sensor can monitor whether the diaphragm is damaged or not, so that corresponding maintenance measures can be taken in time, and the use efficiency of the pneumatic diaphragm pump is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic diaphragm pumps for sewage treatment, and in particular to a pneumatic diaphragm pump for sewage treatment and a use method thereof. Background Art

[0002] The pneumatic diaphragm pump is a new type of conveying machinery. It is a positive displacement pump whose volume changes due to the reciprocating deformation of the diaphragm. Its working principle is similar to that of a plunger pump. It uses compressed air as a power source. This feature gives it unique advantages in some special scenarios. It can be used for various corrosive liquids. Pneumatic diaphragm pumps are usually used in sewage treatment.

[0003] According to Chinese patent application number: 202121868940.4, a pneumatic diaphragm pump for sewage treatment is disclosed, including a base frame, a pump body is arranged on the upper side of the base frame, a pneumatic box is arranged between the pump bodies, a pump pipe is arranged directly above the pneumatic box, both ends of the pump pipe are connected to the pump body, a connector is connected to the middle of the pump pipe, a lifting groove is provided inside the connector, a telescopic spring is provided inside the lifting groove, a stop block is inserted inside the lifting groove, one end of the stop block located inside the lifting groove abuts against the top of the lifting groove, a connecting cover is sleeved on the outside of the connector, an L-shaped groove is provided on the inner wall of the connecting cover, symmetrical limit sliders are provided on both sides of the outer wall of the connector, the limit slider is slidably connected to the inner wall of the L-shaped groove, and one end of the stop block away from the connector abuts against the outer wall of the connecting cover; when the pneumatic diaphragm pump is connected to the sewage pipe, the stop block inside the connector can abut against the inside of the connecting cover, thereby improving the firmness of the connection between the pneumatic diaphragm pump and the sewage pipe, so that the connection stability between the connector and the connecting cover is obtained;

[0004] The existing technology effectively solves the problem that when the pneumatic diaphragm pump is connected to the sewage pipe through a spiral interface, although the installation efficiency is very high, it is very easy to loosen after the connection is completed, causing sewage to flow out. It has the advantage of improving the firmness of the connection between the pneumatic diaphragm pump and the sewage pipe. However, the diaphragm of the pneumatic diaphragm pump is easily damaged by sewage corrosion during long-term use. When the diaphragm is damaged and no timely measures are taken, dirt will penetrate into the middle valve body of the diaphragm pump, causing damage to the driving components, thereby affecting the use efficiency of the pneumatic diaphragm pump. Summary of the invention

[0005] The purpose of the present invention is to provide a pneumatic diaphragm pump for sewage treatment and a method of using the same, which has the advantage of being able to monitor the operating status of the pneumatic diaphragm pump in real time, and solves the problem that the diaphragm of the pneumatic diaphragm pump is damaged and no timely measures are taken, so that dirt penetrates into the middle valve body of the diaphragm pump, causing damage to the driving components, thereby affecting the use efficiency of the pneumatic diaphragm pump.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pneumatic diaphragm pump for sewage treatment, comprising an intermediate valve body and a monitoring component, diaphragm components are installed on both sides of the intermediate valve body, an air intake component is installed on the front of the intermediate valve body, and the air intake component is used to transport compressed air, a liquid inlet component is installed below the intermediate valve body, and a liquid outlet component is installed above the intermediate valve body, the diaphragm component, the liquid inlet component and the liquid outlet component are used to transport sewage, an exhaust component is installed on the back of the intermediate valve body, and the exhaust component is used for exhaust and noise reduction, and the monitoring component includes an intelligent controller, an audible and visual alarm, A connection box, a water immersion sensor, an air inlet pressure sensor, an air outlet pressure sensor, a liquid inlet pressure sensor and a liquid outlet pressure sensor, wherein the output ends of the water immersion sensor, the air inlet pressure sensor, the air outlet pressure sensor, the liquid inlet pressure sensor and the liquid outlet pressure sensor are all connected to the input end of the intelligent controller, and the output end of the intelligent controller is connected to the input end of the sound and light alarm. The air inlet pressure sensor and the air outlet pressure sensor are used to monitor the pressure of compressed air, and the liquid inlet pressure sensor and the liquid outlet pressure sensor are used to monitor the sewage pressure. The intelligent controller and the sound and light alarm are used to process signals and send alarms.

[0007] Preferably, the diaphragm assembly includes end covers, a diaphragm basin, a double-layer diaphragm sheet, a pressure plate, an inner pressure plate and a connecting rod shaft. The diaphragm basin is fixed to both sides of the intermediate valve body. The end covers are threadedly connected to the diaphragm basin by bolts. The double-layer diaphragm sheet, the pressure plate and the inner pressure plate are all installed in the inner cavity of the end covers and the diaphragm basin. The connecting rod shaft is installed in the inner cavity of the intermediate valve body.

[0008] Preferably, both ends of the connecting rod shaft respectively penetrate into the inner cavities of the two diaphragm basins and are slidably connected to the inner cavities of the diaphragm basins. The double-layer diaphragm sheet and the pressure sheet are both installed on one end of the connecting rod shaft located in the inner cavity of the diaphragm basin. The inner pressure plate is used to seal the connection between the diaphragm basin and the intermediate valve body.

[0009] Preferably, the air intake assembly includes an air intake valve, an air intake pipe, an air filter, a pressure regulating valve, an oil mist collector, a connecting pipe, and a ventilation valve. The air intake valve and the ventilation valve are both connected to the inner cavity of the intermediate valve body. The air intake valve is installed on the front side of the ventilation valve. The air filter, the pressure regulating valve and the oil mist collector are used to filter compressed air. The outlet of the air filter is connected to the inlet of the pressure regulating valve, and the outlet of the pressure regulating valve is connected to the inlet of the oil mist collector. One end of the connecting pipe is connected to the air intake valve, and the other end of the connecting pipe is connected to the outlet of the oil mist collector. One end of the air intake pipe is connected to the inlet of the air filter.

[0010] Preferably, the liquid inlet assembly includes a liquid inlet pipe, a liquid inlet ball valve, a liquid inlet flange and a connecting pipe, the liquid inlet flange is installed on the surface of the liquid inlet pipe, one end of the liquid inlet ball valve is connected to the liquid inlet pipe, the other end of the liquid inlet ball valve is connected to the inner cavity of the end cover, and the liquid inlet pipe is connected to the liquid inlet flange.

[0011] Preferably, the liquid outlet assembly includes a liquid outlet pipe, a liquid outlet flange and a liquid outlet ball valve, the liquid outlet flange is installed on the surface of the liquid outlet pipe, one end of the liquid outlet ball valve is connected to the inner cavity of the end cover, and the other end of the liquid outlet ball valve is connected to the liquid outlet pipe, the exhaust assembly includes an exhaust valve and a muffler, the exhaust valve is installed at the air outlet end, and the muffler is installed at the outlet of the exhaust valve.

[0012] Preferably, the water immersion sensor is installed in the inner cavity of the connecting box, the connecting box is installed at the bottom of the diaphragm basin and is connected to the inner cavity of the diaphragm basin, the intake pressure sensor is installed on the surface of the intake pipe, the outlet pressure sensor is installed on the surface of the connecting pipe, the liquid inlet pressure sensor is installed on the surface of the connecting pipe, and the liquid outlet pressure sensor is installed on the surface of the connecting pipe.

[0013] Preferably, the method of use comprises the following steps:

[0014] a. First, connect the connecting pipe to the sewage pipe, and the air intake pipe to the compressed air pipe. The compressed air enters the inner cavity of the air filter through the air intake pipe. The air filter filters the moisture and particulate matter in the compressed air. The filtered compressed air is regulated by the pressure regulating valve and then passes through the oil mist collector. The oil mist atomized by the oil mist collector is transported to the inner cavity of the intermediate valve body through the connecting pipe, the air intake valve and the air exchange valve, driving the driving part inside the intermediate valve body to move, so that the intermediate valve body drives the diaphragm assembly to generate suction;

[0015] b. The connecting rod shaft reciprocates in the inner cavity of the middle valve body, thereby driving the double-layer diaphragms on both sides to reciprocate in the inner cavities of the end cover and the diaphragm basin, thereby generating suction. The sewage enters the inner cavity through the connecting pipe for filtration, which can intercept the particles in the sewage and prevent the particles from clogging the inner cavities of the end cover and the diaphragm basin. The filtered sewage enters the inner cavity of the end cover and the diaphragm basin under the suction generated by the double-layer diaphragm, and is transported to the inner cavity of the liquid outlet pipe under the action of the reciprocating motion of the double-layer diaphragm and the cooperation of the liquid inlet ball valve and the liquid outlet ball valve. The liquid outlet flange can be connected to the pipeline to transport the sewage to the designated location;

[0016] c. When the double-layer diaphragm is damaged, the sewage in the inner cavity of the end cover will enter the inner cavity of the diaphragm basin through the crack and fall into the inner cavity of the connecting box. The sewage monitored by the water immersion sensor will send a signal to the intelligent controller, and the intelligent controller will send an alarm through the sound and light alarm, so as to remind the staff to take maintenance measures. The air inlet pressure sensor and the air outlet pressure sensor can monitor the pressure of the compressed air in real time. When the pressure monitored by the air inlet pressure sensor is higher than the set threshold and the pressure monitored by the air outlet pressure sensor is lower than the set threshold, it can be judged that the air filter is clogged. The liquid inlet pressure sensor and the liquid outlet pressure sensor can monitor the pressure of the transported sewage. When the pressure monitored by the liquid inlet pressure sensor is higher than the set threshold and the pressure monitored by the liquid outlet pressure sensor is lower than the set threshold, it can be judged that blockage occurs, so that an alarm can be sent through the intelligent controller and the sound and light alarm, thereby realizing real-time monitoring of the operating status of the pneumatic diaphragm pump.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention achieves the effect of conveying sewage during sewage treatment by arranging an intermediate valve body, a diaphragm assembly, an air inlet assembly, a liquid inlet assembly and a liquid outlet assembly. The air inlet assembly is used to convey the air source, so that the intermediate valve body drives the diaphragm assembly to reciprocate, thereby generating suction, and the sewage can be conveyed through the cooperation of the liquid outlet assembly and the monitoring assembly, thereby effectively improving the sewage treatment efficiency.

[0019] 2. The present invention achieves the effect of real-time monitoring of the operating status of the pneumatic diaphragm pump through the monitoring component. The connection box and the water immersion sensor can monitor whether the diaphragm is damaged. The air inlet pressure sensor and the air outlet pressure sensor can monitor the pressure of the compressed air in real time. The liquid inlet pressure sensor and the liquid outlet pressure sensor can monitor the pressure of the transported sewage, thereby realizing the monitoring of the operating status of the pneumatic diaphragm pump. When a fault occurs, an alarm can be sent in time through the intelligent controller and the sound and light alarm, so that corresponding maintenance measures can be taken in time, effectively improving the use efficiency of the pneumatic diaphragm pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the intermediate valve body and the diaphragm assembly, the air inlet assembly and the liquid outlet assembly in the present invention in a separated state;

[0022] Figure 3 It is a schematic structural diagram of the intermediate valve body, the diaphragm assembly and the exhaust assembly in a separated state according to the present invention;

[0023] Figure 4It is a schematic diagram of the explosion state structure of the diaphragm assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the system flow of the monitoring component of the present invention.

[0025] In the figure: 1, intermediate valve body; 2, diaphragm assembly; 201, end cover; 202, diaphragm basin; 203, double-layer diaphragm; 204, pressing plate; 205, inner pressure plate; 206, connecting rod shaft; 3, air intake assembly; 301, air intake valve; 302, air intake pipe; 303, air filter; 304, pressure regulating valve; 305, oil mist; 306, connecting pipe; 307, ventilation valve; 4, liquid inlet assembly; 401, liquid inlet pipe; 402, liquid inlet ball valve; 403, liquid inlet Flange; 404, connecting pipe; 5, liquid outlet assembly; 501, liquid outlet pipe; 502, liquid outlet flange; 503, liquid outlet ball valve; 6, monitoring assembly; 601, intelligent controller; 602, sound and light alarm; 603, connection box; 604, water immersion sensor; 605, air inlet pressure sensor; 606, air outlet pressure sensor; 607, liquid inlet pressure sensor; 608, liquid outlet pressure sensor; 7, exhaust assembly; 701, exhaust valve; 702, muffler. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The intermediate valve body 1 of the present invention, the diaphragm assembly 2, the end cover 201, the diaphragm basin 202, the double-layer diaphragm sheet 203, the pressing sheet 204, the inner pressure plate 205, the connecting rod shaft 206, the air intake assembly 3, the air intake valve 301, the air intake pipe 302, the air filter 303, the pressure regulating valve 304, the oil mist device 305, the connecting pipe 306, the ventilation valve 307, the liquid inlet assembly 4, the liquid inlet pipe 401, the liquid inlet ball valve 402, the liquid inlet flange 403, the connecting pipe 404, the liquid outlet assembly 5, the liquid outlet pipe 501, the liquid outlet flange 50 2. The liquid outlet ball valve 503, monitoring component 6, intelligent controller 601, sound and light alarm 602, connection box 603, water immersion sensor 604, air intake pressure sensor 605, air outlet pressure sensor 606, liquid inlet pressure sensor 607, liquid outlet pressure sensor 608, exhaust component 7, exhaust valve 701 and muffler 702 are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0028] Example 1

[0029] like Figure 1-5 As shown, it is the first embodiment of the present invention, which provides a pneumatic diaphragm pump for sewage treatment, including an intermediate valve body 1 and a monitoring component 6. Diaphragm components 2 are installed on both sides of the intermediate valve body 1, an air inlet component 3 is installed on the front of the intermediate valve body 1, and the air inlet component 3 is used to transport compressed air. A liquid inlet component 4 is installed below the intermediate valve body 1, and a liquid outlet component 5 is installed above the intermediate valve body 1. The diaphragm component 2, the liquid inlet component 4 and the liquid outlet component 5 are used to transport sewage. An exhaust component 7 is installed on the back of the intermediate valve body 1. The exhaust component 7 is used for exhaust and noise reduction. The monitoring component 6 includes an intelligent controller 601, an audible and visual alarm 602, a connection box 603, a water immersion sensor 604, an intake pressure sensor The output ends of the water immersion sensor 604, the air inlet pressure sensor 605, the air outlet pressure sensor 606, the liquid inlet pressure sensor 607 and the liquid outlet pressure sensor 608 are all connected to the input end of the intelligent controller 601, the output end of the intelligent controller 601 is connected to the input end of the sound and light alarm 602, the air inlet pressure sensor 605 and the air outlet pressure sensor 606 are used to monitor the pressure of compressed air, the liquid inlet pressure sensor 607 and the liquid outlet pressure sensor 608 are used to monitor the sewage pressure, and the intelligent controller 601 and the sound and light alarm 602 are used to process signals and send alarms.

[0030] like Figure 1-5 As shown, when the double-layer diaphragm 203 is damaged, the sewage in the inner cavity of the end cover 201 will enter the inner cavity of the diaphragm basin 202 through the crack and fall into the inner cavity of the connecting box 603. The sewage monitored by the water immersion sensor 604 will send a signal to the intelligent controller 601, and the intelligent controller 601 will send an alarm through the sound and light alarm 602, so as to remind the staff to take maintenance measures. The intake pressure sensor 605 and the outlet pressure sensor 606 can monitor the pressure of the compressed air in real time. When the pressure monitored by the intake pressure sensor 605 is higher than the set threshold When the pressure monitored by the outlet pressure sensor 606 is lower than the set threshold, it can be determined that the air filter 303 is clogged. The liquid inlet pressure sensor 607 and the liquid outlet pressure sensor 608 can monitor the pressure of the transported sewage. When the pressure monitored by the liquid inlet pressure sensor 607 is higher than the set threshold, and the pressure monitored by the liquid outlet pressure sensor 608 is lower than the set threshold, it can be determined that 405 is clogged, so that an alarm can be sent through the intelligent controller 601 and the sound and light alarm 602, thereby realizing real-time monitoring of the operating status of the pneumatic diaphragm pump.

[0031] Example 2

[0032] Reference Figure 1-4, which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0033] In this embodiment, the diaphragm assembly 2 includes an end cover 201, a diaphragm basin 202, a double-layer diaphragm sheet 203, a pressing sheet 204, an inner pressure plate 205 and a connecting rod shaft 206. The diaphragm basin 202 is fixed on both sides of the intermediate valve body 1. The end cover 201 is threadedly connected to the diaphragm basin 202 by bolts. The double-layer diaphragm sheet 203, the pressing sheet 204 and the inner pressure plate 205 are all installed in the inner cavity of the end cover 201 and the diaphragm basin 202. The connecting rod shaft 206 is installed in the inner cavity of the intermediate valve body 1.

[0034] Both ends of the connecting rod shaft 206 respectively penetrate into the inner cavities of the two diaphragm basins 202 and are slidably connected to the inner cavities of the diaphragm basins 202. The double-layer diaphragm sheet 203 and the pressing sheet 204 are both installed on one end of the connecting rod shaft 206 located in the inner cavity of the diaphragm basin 202. The inner pressure plate 205 is used to seal the connection between the diaphragm basin 202 and the intermediate valve body 1.

[0035] The air intake assembly 3 includes an air intake valve 301, an air intake pipe 302, an air filter 303, a pressure regulating valve 304, an oil mist collector 305, a connecting pipe 306, and a ventilation valve 307. The air intake valve 301 and the ventilation valve 307 are both connected to the inner cavity of the intermediate valve body 1. The air intake valve 301 is installed on the front of the ventilation valve 307. The air filter 303, the pressure regulating valve 304 and the oil mist collector 305 are used to filter compressed air. The outlet of the air filter 303 is connected to the inlet of the pressure regulating valve 304, and the outlet of the pressure regulating valve 304 is connected to the inlet of the oil mist collector 305. One end of the connecting pipe 306 is connected to the air intake valve 301, and the other end of the connecting pipe 306 is connected to the outlet of the oil mist collector 305. One end of the air intake pipe 302 is connected to the inlet of the air filter 303.

[0036] like Figure 1-4As shown, the air intake pipe 302 is connected to the compressed air pipeline, and the compressed air enters the inner cavity of the air filter 303 through the air intake pipe 302. The air filter 303 filters the moisture and particulate matter in the compressed air. The filtered compressed air is pressure-regulated by the pressure regulating valve 304 and then passes through the oil mist collector 305. The oil mist atomized by the oil mist collector 305 is transported to the inner cavity of the intermediate valve body 1 through the connecting pipe 306, the air intake valve 301 and the air exchange valve 307, and drives the driving part inside the intermediate valve body 1 to move, so that the intermediate valve body 1 drives the diaphragm assembly 2 to generate suction, and the connecting rod shaft 206 reciprocates in the inner cavity of the intermediate valve body 1, thereby driving the double-layer diaphragm sheets 203 on both sides. The inner cavities of the end cover 201 and the diaphragm basin 202 reciprocate to generate suction, and the sewage enters the inner cavity of 405 through the connecting pipe 404 for filtration. 405 can intercept particulate matter in the sewage to prevent the particulate matter from clogging the inner cavities of the end cover 201 and the diaphragm basin 202. The filtered sewage enters the inner cavity of the end cover 201 and the diaphragm basin 202 under the suction generated by the double-layer diaphragm sheet 203, and is transported to the inner cavity of the liquid outlet pipe 501 under the action of the reciprocating motion of the double-layer diaphragm sheet 203 and in cooperation with the liquid inlet ball valve 402 and the liquid outlet ball valve 503. The liquid outlet flange 502 can be connected to a pipeline to transport the sewage to a designated location.

[0037] Example 3

[0038] Reference Figure 1 and 2 , which is the third embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0039] In this embodiment, the liquid inlet component 4 includes a liquid inlet pipe 401, a liquid inlet ball valve 402, a liquid inlet flange 403 and a connecting pipe 404. The liquid inlet flange 403 is installed on the surface of the liquid inlet pipe 401, one end of the liquid inlet ball valve 402 is connected to the liquid inlet pipe 401, and the other end of the liquid inlet ball valve 402 is connected to the inner cavity of the end cover 201, and the liquid inlet pipe 401 is connected to the liquid inlet flange 403.

[0040] The liquid outlet component 5 includes a liquid outlet pipe 501, a liquid outlet flange 502 and a liquid outlet ball valve 503. The liquid outlet flange 502 is installed on the surface of the liquid outlet pipe 501. One end of the liquid outlet ball valve 503 is connected to the inner cavity of the end cover 201, and the other end of the liquid outlet ball valve 503 is connected to the liquid outlet pipe 501. The exhaust component 7 includes an exhaust valve 701 and a muffler 702. The exhaust valve 701 is installed at the air outlet end of 1, and the muffler 702 is installed at the outlet of the exhaust valve 701.

[0041] The water immersion sensor 604 is installed in the inner cavity of the connecting box 603, the connecting box 603 is installed at the bottom of the diaphragm basin 202 and is connected to the inner cavity of the diaphragm basin 202, the intake pressure sensor 605 is installed on the surface of the intake pipe 302, the outlet pressure sensor 606 is installed on the surface of the connecting pipe 306, the liquid inlet pressure sensor 607 is installed on the surface of the connecting pipe 404, and the liquid outlet pressure sensor 608 is installed on the surface of the connecting pipe 306.

[0042] like Figure 1 and 2 As shown, the connecting pipe 404 is connected to the sewage pipe, and the liquid outlet flange 502 can be connected to the pipe to transport the sewage to the designated location. When the liquid inlet ball valve 402 is opened, the liquid outlet ball valve 503 is closed, and when the liquid outlet ball valve 503 is opened, the liquid inlet ball valve 402 is closed. The liquid inlet ball valve 402 and the liquid outlet ball valve 503 are opened alternately, so that they can cooperate with the diaphragm assembly 2 to transport sewage. The connecting box 603 is connected to the diaphragm basin 202 with a threaded interface, which can be easily cleaned. The exhaust valve 701 and the muffler 702 are used to discharge the compressed air in the inner cavity 1, and the muffler 702 can reduce the noise of the discharged gas.

[0043] A method for using a pneumatic diaphragm pump for sewage treatment, the method comprising the following steps:

[0044] a. First, connect the connecting pipe 404 to the sewage pipe, connect the air inlet pipe 302 to the compressed air pipe, and the compressed air enters the inner cavity of the air filter 303 through the air inlet pipe 302. The air filter 303 filters the moisture and particulate matter in the compressed air. The filtered compressed air is regulated by the pressure regulating valve 304 and then passes through the oil mist collector 305. The oil mist atomized by the oil mist collector 305 is transported to the inner cavity of the intermediate valve body 1 through the connecting pipe 306, the air inlet valve 301 and the air exchange valve 307, and drives the driving part inside the intermediate valve body 1 to move, so that the intermediate valve body 1 drives the diaphragm assembly 2 to generate suction;

[0045] b. The connecting rod shaft 206 reciprocates in the inner cavity of the middle valve body 1, thereby driving the double-layer diaphragm sheets 203 on both sides to reciprocate in the inner cavities of the end cover 201 and the diaphragm basin 202, thereby generating suction. The sewage enters the inner cavity of 405 through the connecting pipe 404 for filtration. 405 can intercept the particles in the sewage to prevent the particles from clogging the inner cavities of the end cover 201 and the diaphragm basin 202. The filtered sewage enters the inner cavity of the end cover 201 and the diaphragm basin 202 under the suction generated by the double-layer diaphragm sheet 203. The sewage is transported to the inner cavity of the liquid outlet pipe 501 under the action of the reciprocating motion of the double-layer diaphragm sheet 203 and in cooperation with the liquid inlet ball valve 402 and the liquid outlet ball valve 503. The liquid outlet flange 502 can be connected to a pipeline to transport the sewage to a designated location.

[0046] c. When the double-layer diaphragm 203 is damaged, the sewage in the inner cavity of the end cover 201 will enter the inner cavity of the diaphragm basin 202 through the crack and fall into the inner cavity of the connection box 603. The water immersion sensor 604 monitors the sewage and sends a signal to the intelligent controller 601. The intelligent controller 601 sends an alarm through the sound and light alarm 602, thereby reminding the staff to take maintenance measures. The intake pressure sensor 605 and the outlet pressure sensor 606 can monitor the pressure of the compressed air in real time. When the pressure monitored by the intake pressure sensor 605 is higher than the set threshold, When the pressure monitored by the outlet pressure sensor 606 is lower than the set threshold, it can be determined that the air filter 303 is clogged. The liquid inlet pressure sensor 607 and the liquid outlet pressure sensor 608 can monitor the pressure of the transported sewage. When the pressure monitored by the liquid inlet pressure sensor 607 is higher than the set threshold and the pressure monitored by the liquid outlet pressure sensor 608 is lower than the set threshold, it can be determined that 405 is clogged, so that an alarm can be sent through the intelligent controller 601 and the sound and light alarm 602, thereby realizing real-time monitoring of the operating status of the pneumatic diaphragm pump.

[0047] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic diaphragm pump for sewage treatment, comprising an intermediate valve body (1) and a monitoring assembly (6), characterized in that: Diaphragm assemblies (2) are installed on both sides of the intermediate valve body (1); an air inlet assembly (3) is installed on the front of the intermediate valve body (1); the air inlet assembly (3) is used to transport compressed air; a liquid inlet assembly (4) is installed below the intermediate valve body (1); a liquid outlet assembly (5) is installed above the intermediate valve body (1); the diaphragm assembly (2), the liquid inlet assembly (4) and the liquid outlet assembly (5) are used to transport sewage; an exhaust assembly (7) is installed on the back of the intermediate valve body (1); the exhaust assembly (7) is used to exhaust and reduce noise; the monitoring assembly (6) comprises an intelligent controller (601), an audible and visual alarm (602), a connection box (603), a water immersion sensor (604), an air inlet pressure sensor (605), and an air outlet pressure sensor (606). 6), a liquid inlet pressure sensor (607) and a liquid outlet pressure sensor (608), the output ends of the water immersion sensor (604), the air inlet pressure sensor (605), the air outlet pressure sensor (606), the liquid inlet pressure sensor (607) and the liquid outlet pressure sensor (608) are all connected to the input end of the intelligent controller (601), the output end of the intelligent controller (601) is connected to the input end of the sound and light alarm (602), the air inlet pressure sensor (605) and the air outlet pressure sensor (606) are used to monitor the pressure of compressed air, the liquid inlet pressure sensor (607) and the liquid outlet pressure sensor (608) are used to monitor the sewage pressure, and the intelligent controller (601) and the sound and light alarm (602) are used to process signals and send alarms.

2. A pneumatic diaphragm pump for sewage treatment according to claim 1, characterized in that: The diaphragm assembly (2) comprises an end cover (201), a diaphragm basin (202), a double-layer diaphragm sheet (203), a pressing sheet (204), an inner pressure plate (205) and a connecting rod shaft (206); the diaphragm basin (202) is fixed to both sides of the intermediate valve body (1); the end cover (201) is threadedly connected to the diaphragm basin (202) by bolts; the double-layer diaphragm sheet (203), the pressing sheet (204) and the inner pressure plate (205) are all installed in the inner cavity of the end cover (201) and the diaphragm basin (202); and the connecting rod shaft (206) is installed in the inner cavity of the intermediate valve body (1).

3. A pneumatic diaphragm pump for sewage treatment according to claim 2, characterized in that: The two ends of the connecting rod shaft (206) respectively penetrate into the inner cavities of the two diaphragm basins (202) and are slidably connected to the inner cavities of the diaphragm basins (202). The double-layer diaphragm sheet (203) and the pressing sheet (204) are both installed on one end of the connecting rod shaft (206) located in the inner cavity of the diaphragm basin (202). The inner pressure plate (205) is used to seal the connection between the diaphragm basin (202) and the intermediate valve body (1).

4. The pneumatic diaphragm pump for sewage treatment according to claim 1, characterized in that: The air intake assembly (3) comprises an air intake valve (301), an air intake pipe (302), an air filter (303), a pressure regulating valve (304), an oil mist collector (305), a connecting pipe (306), and a ventilation valve (307). The air intake valve (301) and the ventilation valve (307) are both connected to the inner cavity of the intermediate valve body (1). The air intake valve (301) is installed on the front side of the ventilation valve (307). The air filter (303), the pressure regulating valve (304), and the oil mist collector (305) are connected to the intermediate valve body (1). The mist collector (305) is used to filter compressed air. The outlet of the air filter (303) is connected to the inlet of the pressure regulating valve (304), the outlet of the pressure regulating valve (304) is connected to the inlet of the oil mist collector (305), one end of the connecting pipe (306) is connected to the air intake valve (301), the other end of the connecting pipe (306) is connected to the outlet of the oil mist collector (305), and one end of the air intake pipe (302) is connected to the inlet of the air filter (303).

5. The pneumatic diaphragm pump for sewage treatment according to claim 1, characterized in that: The liquid inlet assembly (4) comprises a liquid inlet pipe (401), a liquid inlet ball valve (402), a liquid inlet flange (403) and a connecting pipe (404); the liquid inlet flange (403) is installed on the surface of the liquid inlet pipe (401); one end of the liquid inlet ball valve (402) is connected to the liquid inlet pipe (401); the other end of the liquid inlet ball valve (402) is connected to the inner cavity of the end cover (201); and the liquid inlet pipe (401) is connected to the liquid inlet flange (403).

6. The pneumatic diaphragm pump for sewage treatment according to claim 1, characterized in that: The liquid outlet assembly (5) comprises a liquid outlet pipe (501), a liquid outlet flange (502) and a liquid outlet ball valve (503); the liquid outlet flange (502) is mounted on the surface of the liquid outlet pipe (501); one end of the liquid outlet ball valve (503) is communicated with the inner cavity of the end cover (201); the other end of the liquid outlet ball valve (503) is communicated with the liquid outlet pipe (501); the exhaust assembly (7) comprises an exhaust valve (701) and a muffler (702); the exhaust valve (701) is mounted on the air outlet end of (1); and the muffler (702) is mounted on the outlet of the exhaust valve (701).

7. The pneumatic diaphragm pump for sewage treatment according to claim 1, characterized in that: The water immersion sensor (604) is installed in the inner cavity of the connecting box (603), the connecting box (603) is installed at the bottom of the diaphragm basin (202) and is connected to the inner cavity of the diaphragm basin (202), the intake pressure sensor (605) is installed on the surface of the intake pipe (302), the outlet pressure sensor (606) is installed on the surface of the connecting pipe (306), the liquid inlet pressure sensor (607) is installed on the surface of the connecting pipe (404), and the liquid outlet pressure sensor (608) is installed on the surface of the connecting pipe (306).

8. The method for using a pneumatic diaphragm pump for sewage treatment according to any one of claims 1 to 7, characterized in that: The method of use includes the following steps: a. First, the connecting pipe (404) is connected to the sewage pipe, and the air intake pipe (302) is connected to the compressed air pipe. The compressed air enters the inner cavity of the air filter (303) through the air intake pipe (302). The air filter (303) filters the moisture and particulate matter in the compressed air. The filtered compressed air is regulated by the pressure regulating valve (304) and then passes through the oil mist collector (305). The oil mist atomized by the oil mist collector (305) is transported to the inner cavity of the intermediate valve body (1) through the connecting pipe (306) and the air intake valve (301) and the air exchange valve (307), thereby driving the driving member inside the intermediate valve body (1) to move, so that the intermediate valve body (1) drives the diaphragm assembly (2) to generate suction; b. The connecting rod shaft (206) reciprocates in the inner cavity of the middle valve body (1), thereby driving the double-layer diaphragm sheets (203) on both sides to reciprocate in the inner cavities of the end cover (201) and the diaphragm basin (202), thereby generating suction. The sewage enters the inner cavity of (405) through the connecting pipe (404) for filtration. (405) can intercept particulate matter in the sewage to prevent the particulate matter from clogging the inner cavities of the end cover (201) and the diaphragm basin (202). The filtered sewage enters the inner cavity of the end cover (201) and the diaphragm basin (202) under the action of the suction force generated by the double-layer diaphragm sheet (203). The sewage is transported to the inner cavity of the liquid outlet pipe (501) under the action of the reciprocating motion of the double-layer diaphragm sheet (203) and in cooperation with the liquid inlet ball valve (402) and the liquid outlet ball valve (503). The liquid outlet flange (502) can be connected to a pipeline to transport the sewage to a designated location. c. When the double-layer diaphragm (203) is damaged, the sewage in the inner cavity of the end cover (201) will enter the inner cavity of the diaphragm basin (202) through the crack and fall into the inner cavity of the connection box (603). The sewage detected by the water immersion sensor (604) will send a signal to the intelligent controller (601). The intelligent controller (601) will send an alarm through the sound and light alarm (602), thereby reminding the staff to take maintenance measures. The intake pressure sensor (605) and the outlet pressure sensor (606) can monitor the pressure of the compressed air in real time. When the pressure monitored by the intake pressure sensor (605) is higher than the set threshold, the intelligent controller (601) will send an alarm. When the pressure monitored by the outlet pressure sensor (606) is lower than the set threshold, it can be determined that the air filter (303) is clogged. The liquid inlet pressure sensor (607) and the liquid outlet pressure sensor (608) can monitor the pressure of the transported sewage. When the pressure monitored by the liquid inlet pressure sensor (607) is higher than the set threshold, and the pressure monitored by the liquid outlet pressure sensor (608) is lower than the set threshold, it can be determined that (405) is clogged, so that an alarm can be sent through the intelligent controller (601) and the sound and light alarm (602), thereby enabling real-time monitoring of the operating status of the pneumatic diaphragm pump.

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