Vacuum oil filter with monitoring function

Abstract

The invention discloses a vacuum oil filter with a monitoring function, and particularly relates to the technical field of vacuum oil filters, the vacuum oil filter comprises an oil inlet pipe, an oil inlet joint is fixedly mounted at one end of the oil inlet pipe, an oil inlet valve is fixedly mounted on the oil inlet pipe, a filter is fixedly mounted at the other end of the oil inlet pipe, and a bottom connecting pipe is arranged at the bottom of the filter; a pretreatment heater is fixedly mounted at the bottom end of the bottom connecting pipe, and a high-sensitivity temperature sensor is arranged in the pretreatment heater. By arranging a primary return pipe, a secondary return pipe, a high-sensitivity temperature sensor, a microwave sensor, a pollution degree sensor and other structures, the oil purification and filtration condition can be monitored in real time in the operation process, oil is detected from the three aspects of temperature, whether water is contained or not and cleanliness, and if a problem occurs, the oil purification and filtration condition can be monitored in real time. And if not, a worker can be timely notified to deal with the problem, so that the treated oil is high in cleanliness and free of water, subsequent use is facilitated, and the actual use effect is relatively good.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum oil filter, and more particularly to a vacuum oil filter with a monitoring function. Background Art

[0002] The vacuum oil filter is a device for on-site oil filtering and oil replenishment for various oil-immersed transformers, oil-immersed current and voltage transformers, and high-voltage and low-oil circuit breakers. The existing vacuum oil filter cannot monitor the working conditions of the equipment itself in real time, resulting in the inability to monitor the oil treatment conditions when the vacuum oil filter is working. This may lead to problems with the quality of the filtered oil, affecting subsequent use, making the actual use effect of the existing vacuum oil filter poor.

[0003] Therefore, there is an urgent need for a vacuum oil filter with a monitoring function to solve the above problems. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a vacuum oil filter with a monitoring function. By providing a primary return pipe, a secondary return pipe, a high-sensitivity temperature sensor, a microwave sensor, a contamination sensor and other structures, the present invention can monitor the purification and filtration of the oil in real time during operation, and detect the oil from three aspects: temperature, whether it contains water, and purity. If a problem occurs, the staff can be notified in time to deal with the problem, ensuring that the oil has high purity and does not contain water after treatment, which is convenient for subsequent use, so that the actual use effect of the present invention is better, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum oil filter with a monitoring function, comprising an oil inlet pipe, one end of which is fixedly provided with an oil inlet joint, an oil inlet valve is fixedly provided on the oil inlet pipe, a filter is fixedly provided at the other end of the oil inlet pipe, a bottom pipe is provided at the bottom of the filter, a pretreatment heater is fixedly provided at the bottom end of the bottom pipe, a high-sensitivity temperature sensor is provided inside the pretreatment heater, one side of the pretreatment heater is connected to an oil-gas separator through a pipeline, an observation window is provided on the front side of the oil-gas separator, and a bottom of the oil-gas separator is provided with a plurality of air filters. A drain pipe is provided at the top of the oil-gas separator, a drain valve is fixedly installed on the drain pipe, a rotator is provided on the top of the oil-gas separator, a steam discharge pipe is provided on the top of the oil-gas separator, a vacuum valve is provided on the steam discharge pipe, a vacuum gauge is fixedly installed on the steam discharge pipe, a condenser is fixedly installed at the bottom of the steam discharge pipe, a condensate pipe is fixedly installed at the bottom of the condenser, a one-way valve is fixedly installed on the top of the condensate pipe, a vacuum pump is fixedly installed at the bottom of the condensate pipe, an oil drain pipe is fixedly installed on one side of the bottom of the oil-gas separator, and a microwave sensor is provided inside the oil drain pipe. A red water-containing warning light and a green water-free indicator light are arranged on the top of the oil-gas separator, a primary return pipe is arranged on the top of the oil drain pipe, a primary on-off control valve is fixedly installed on the oil drain pipe, a primary return control valve is fixedly installed on the primary return pipe, the top of the primary return pipe is communicated with the oil-gas separator, an oil purifier is fixedly installed on the top of the oil drain pipe, a pressure gauge is arranged on the top of the oil purifier, an oil outlet pipe is fixedly installed on the top of the oil purifier, a return valve is fixedly installed on the oil outlet pipe, an oil outlet joint is fixedly installed on one end of the oil outlet pipe, and a pressure gauge is arranged on the top of the oil purifier, a pressure gauge is arranged on the top of the oil purifier, a pressure gauge is arranged on the top of the oil purifier, a pressure gauge is fixedly installed on the top of the oil purifier, a pressure gauge is fixedly installed on the top of the oil purifier, a pressure gauge is fixedly installed on the top of the oil purifier, a pressure gauge is fixedly installed on the top of the oil purifier, a pressure gauge is fixedly installed on the pressure gauge ... There is a secondary return pipe, a contamination sensor is arranged inside the oil outlet pipe, a red warning light indicating excessive impurities and a green indicator light indicating that the cleanliness reaches the standard are arranged on the top of the oil purifier, a secondary return control valve is fixedly installed on the top of the secondary return pipe, a secondary on-off control valve is fixedly installed on the oil outlet pipe, an oil drain pump is arranged between the return valve and the oil outlet joint, and the oil drain pump is fixedly installed on the oil outlet pipe, the input end of the secondary on-off control valve is connected to a monitoring intelligent controller, the monitoring intelligent controller is set to a single-chip microcomputer, and the output end of the monitoring intelligent controller is connected to a high-sensitivity temperature display screen; The highly sensitive temperature sensor is used to detect the temperature inside the pretreatment heater and transmit the detection result to the monitoring intelligent controller for processing; The microwave sensor is used to detect whether the oil flowing through the oil drain pipe contains water, and transmit the detection result to the monitoring intelligent controller for processing; The contamination sensor is used to detect the amount of impurities contained in the oil flowing through the oil outlet pipe, and transmit the detection result to the monitoring intelligent controller for processing.

[0006] In a preferred embodiment, the output end of the monitoring intelligent controller is connected to the input end of the secondary reflux control valve, and the output end of the monitoring intelligent controller is connected to the input end of the primary on-off control valve.

[0007] In a preferred embodiment, the output end of the monitoring intelligent controller is connected to the input end of the primary reflux control valve, and the output end of the monitoring intelligent controller is connected to the input end of the pretreatment heater.

[0008] In a preferred embodiment, the output end of the monitoring intelligent controller is connected to the input end of the vacuum pump, and the output end of the monitoring intelligent controller is connected to the input end of the oil drain pump.

[0009] In a preferred embodiment, the monitoring intelligent controller input end is connected to the high-sensitivity temperature sensor output end, and the monitoring intelligent controller input end is connected to the microwave sensor output end.

[0010] In a preferred embodiment, the monitoring intelligent controller input end is connected to the pollution sensor output end, and the monitoring intelligent controller output end is connected to the water-containing red warning light input end.

[0011] In a preferred embodiment, the output end of the monitoring intelligent controller is connected to the input end of the green indicator light indicating no water, and the output end of the monitoring intelligent controller is connected to the input end of the red warning light indicating excessive impurities.

[0012] In a preferred embodiment, the output end of the monitoring intelligent controller is connected to the input end of the cleanliness standard green indicator light.

[0013] Technical effects and advantages of the present invention: The present invention is provided with a primary reflux pipe, a secondary reflux pipe, a highly sensitive temperature sensor, a microwave sensor, a contamination sensor and other structures, so that the present invention can monitor the purification and filtration of the oil in real time during operation, detect the oil from three aspects of temperature, whether it contains water and purity. If a problem occurs, the staff can be notified in time to deal with the problem, ensuring that the oil has high purity and does not contain water after treatment, which is convenient for subsequent use, making the actual use effect of the present invention better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a system schematic diagram of the present invention.

[0016] The accompanying drawings are marked as follows: 1. oil inlet pipe; 2. oil inlet joint; 3. oil inlet valve; 4. filter; 5. bottom pipe; 6. high-sensitivity temperature sensor; 7. pretreatment heater; 8. oil-gas separator; 9. observation window; 10. drain pipe; 11. drain valve; 12. rotator; 13. steam discharge pipe; 14. vacuum valve; 15. vacuum gauge; 16. condenser; 17. condensate pipe; 18. one-way valve; 19. vacuum pump; 20. oil drain pipe; 21. microwave sensor; 22. water-containing red warning light; 23. , green indicator light for water-free; 24. Primary return pipe; 25. Primary on-off control valve; 26. Primary return control valve; 27. Oil purifier; 28. Pressure gauge; 29. ​​Oil outlet pipe; 30. Return valve; 31. Oil outlet connector; 32. Secondary return pipe; 33. Contamination sensor; 34. Red warning light for excessive impurities; 35. Green indicator light for cleanliness reaching standard; 36. Secondary return control valve; 37. Secondary on-off control valve; 38. Oil drain pump; 39. Monitoring intelligent controller; 40. Highly sensitive temperature display screen. DETAILED DESCRIPTION

[0017] 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.

[0018] As attached Figure 1 and attached Figure 2As shown, the present invention provides a vacuum oil filter with monitoring function, including an oil inlet pipe 1, an oil inlet joint 2 is fixedly installed at one end of the oil inlet pipe 1, an oil inlet valve 3 is fixedly installed on the oil inlet pipe 1, a filter 4 is fixedly installed at the other end of the oil inlet pipe 1, a bottom pipe 5 is arranged at the bottom of the filter 4, a pretreatment heater 7 is fixedly installed at the bottom end of the bottom pipe 5, and a high-sensitivity temperature sensor 6 is arranged inside the pretreatment heater 7. The working principle of the temperature and humidity sensor is based on specific physical or chemical effects. It usually uses an integrated temperature and humidity probe as a temperature measuring element to collect temperature and humidity signals. These signals are then processed by circuits such as voltage stabilization filtering, operational amplification, nonlinear correction, V / I conversion, constant current and reverse protection. The pretreatment heater 7 is converted into a current signal or a voltage signal output which is linearly related to the temperature and humidity. One side of the pretreatment heater 7 is connected to an oil-gas separator 8 through a pipeline. An observation window 9 is arranged on the front side of the oil-gas separator 8. A drain pipe 10 is arranged at the bottom of the oil-gas separator 8. A drain valve 11 is fixedly installed on the drain pipe 10. A rotator 12 is arranged at the top of the oil-gas separator 8. A steam discharge pipe 13 is arranged at the top of the oil-gas separator 8. A vacuum valve 14 is arranged on the steam discharge pipe 13. A vacuum gauge 15 is fixedly installed on the steam discharge pipe 13. A condenser 16 is fixedly installed at the bottom of the steam discharge pipe 13. A condensate pipe 17 is fixedly installed at the bottom of the condenser 16. A one-way valve is fixedly installed on the top of the condensate pipe 17. 18, a vacuum pump 19 is fixedly installed at the bottom of the condensate pipe 17, an oil drain pipe 20 is fixedly installed on one side of the bottom of the oil-gas separator 8, a microwave sensor 21 is arranged inside the oil drain pipe 20, a microwave sensor is a device that uses microwave characteristics to detect physical quantities, it can sense the existence, movement speed, distance, angle and other information of an object, the microwave sensor is mainly composed of a microwave oscillator and a microwave antenna, wherein the microwave oscillator is responsible for generating microwaves, and the microwave antenna is responsible for transmitting and receiving microwave signals, a water-containing red warning light 22 and a water-free green indicator light 23 are arranged on the top of the oil-gas separator 8, a primary reflux pipe 24 is arranged on the top of the oil drain pipe 20, a primary on-off control valve 25 is fixedly installed on the oil drain pipe 20, the A primary return control valve 26 is fixedly installed on the primary return pipe 24. The top of the primary return pipe 24 is connected to the oil-gas separator 8. An oil purifier 27 is fixedly installed on the top of the oil drain pipe 20. A pressure gauge 28 is arranged on the top of the oil purifier 27. An oil outlet pipe 29 is fixedly installed on the top of the oil purifier 27. A return valve 30 is fixedly installed on the oil outlet pipe 29. An oil outlet joint 31 is fixedly installed at one end of the oil outlet pipe 29. A secondary return pipe 32 is arranged at the bottom of the oil outlet pipe 29. A pollution sensor 33 is arranged inside the oil outlet pipe 29. The pollution sensor is mainly used to detect the concentration or degree of pollution in the environment. These sensors interact with target molecules using specific recognition elements and convert them into detectable signals.A red warning light 34 indicating excessive impurities and a green indicator light 35 indicating that the cleanliness meets the standard are provided on the top of the oil purifier 27. A secondary reflux control valve 36 is fixedly installed on the top of the secondary reflux pipe 32. A secondary on-off control valve 37 is fixedly installed on the oil outlet pipe 29. An oil discharge pump 38 is provided between the return valve 30 and the oil outlet joint 31. The oil discharge pump 38 is fixedly installed on the oil outlet pipe 29. A monitoring intelligent controller 39 is connected to the input end of the secondary on-off control valve 37. The monitoring intelligent controller 39 is configured as a single-chip microcomputer. The single-chip microcomputer is an integrated circuit chip. It is a small and complete microcomputer system that integrates a central processing unit CPU with data processing capability, a random access memory RAM, a read-only memory ROM, a variety of I / O ports and interrupt systems, timers / counters and other functions into a silicon chip using ultra-large-scale integrated circuit technology. A highly sensitive temperature display screen 40 is connected to the output end of the monitoring intelligent controller 39; The highly sensitive temperature sensor 6 is used to detect the temperature inside the pretreatment heater 7 and transmit the detection result to the monitoring intelligent controller 39 for processing; The microwave sensor 21 is used to detect whether the oil flowing through the oil drain pipe 20 contains water, and transmit the detection result to the monitoring intelligent controller 39 for processing; The contamination sensor 33 is used to detect the amount of impurities contained in the oil flowing through the oil outlet pipe 29 and transmit the detection result to the monitoring intelligent controller 39 for processing.

[0019] The output end of the monitoring intelligent controller 39 is connected to the input end of the secondary reflux control valve 36 , and the output end of the monitoring intelligent controller 39 is connected to the input end of the primary on-off control valve 25 .

[0020] The output end of the monitoring intelligent controller 39 is connected to the input end of the primary reflux control valve 26 , and the output end of the monitoring intelligent controller 39 is connected to the input end of the pretreatment heater 7 .

[0021] The output end of the monitoring intelligent controller 39 is connected to the input end of the vacuum pump 19 , and the output end of the monitoring intelligent controller 39 is connected to the input end of the oil drain pump 38 .

[0022] The input end of the monitoring intelligent controller 39 is connected to the output end of the high-sensitivity temperature sensor 6 , and the input end of the monitoring intelligent controller 39 is connected to the output end of the microwave sensor 21 .

[0023] The input end of the monitoring intelligent controller 39 is connected to the output end of the pollution sensor 33 , and the output end of the monitoring intelligent controller 39 is connected to the input end of the water-containing red warning light 22 .

[0024] The output end of the monitoring intelligent controller 39 is connected to the input end of the water-free green indicator light 23 , and the output end of the monitoring intelligent controller 39 is connected to the input end of the impurity-exceeding red warning light 34 .

[0025] The output end of the monitoring intelligent controller 39 is connected to the input end of the cleanliness standard green indicator light 35.

[0026] The model of the single chip microcomputer is set to M68HC16, the model of the temperature sensor is set to DS18B20, the model of the microwave sensor 21 is set to YTMW8630, and the model of the pollution sensor 33 is set to CS1210.

[0027] The specific implementation method is as follows: when using the present invention, the high-sensitivity temperature sensor 6 can detect the temperature inside the pretreatment heater 7, and transmit the detection result to the monitoring intelligent controller 39 for processing, and then the monitoring intelligent controller 39 controls the high-sensitivity temperature display screen 40 to display it, which is convenient for the staff to view. The microwave sensor 21 can detect whether the oil flowing through the inside of the oil drain pipe 20 contains water, and transmit the detection result to the monitoring intelligent controller 39 for processing. If there is water, the red water warning light 22 will light up to remind the staff that there is a problem and it needs to be dealt with in time. At the same time, the monitoring intelligent controller 39 opens the reflux control valve 26 and closes the on-off control valve 25, so that the oil containing water gas returns to the oil-gas separator 8 for re-separation, thereby avoiding water in the oil. If there is no water, the green water-free indicator light 23 will light up, and the pollution The contamination sensor 33 can detect how much impurities are contained in the oil flowing through the inside of the oil pipe 29, and transmit the detection result to the monitoring intelligent controller 39 for processing. If the purity of the oil meets the standard, the green indicator light 35 of the purity meets the standard will light up. If it does not meet the standard, the red warning light 34 of impurity excess will light up, reminding the staff that there is a problem and needs to be dealt with in time. At the same time, the monitoring intelligent controller 39 opens the secondary reflux control valve 36 and closes the secondary on-off control valve 37, so that the oil returns to the oil purifier 27 for re-filtration, thereby improving the purity of the oil. This allows the present invention to monitor the purification and filtration of the oil in real time during operation, and detect the oil from three aspects: temperature, water content and purity. If a problem occurs, the staff can be notified in time to deal with the problem, ensuring that the oil is highly pure and does not contain water after treatment, which is convenient for subsequent use, making the actual use effect of the present invention better.

[0028] Working principle of the present invention: Refer to the instruction manual Figure 1 and attached Figure 2When using the present invention, by providing a primary return pipe 24, a secondary return pipe 32, a high-sensitivity temperature sensor 6, a microwave sensor 21 and a pollution sensor 33 and other structures, the present invention can monitor the purification and filtration of the oil in real time during operation, detect the oil from three aspects of temperature, whether it contains water and purity. If a problem occurs, the staff can be notified in time to deal with the problem, ensuring that the oil has high purity and does not contain water after treatment, which is convenient for subsequent use, making the actual use effect of the present invention better.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum oil filter with monitoring function, comprising an oil inlet pipe (1), characterized in that: An oil inlet joint (2) is fixedly mounted on one end of the oil inlet pipe (1), an oil inlet valve (3) is fixedly mounted on the oil inlet pipe (1), a filter (4) is fixedly mounted on the other end of the oil inlet pipe (1), a bottom pipe (5) is arranged at the bottom of the filter (4), a pretreatment heater (7) is fixedly mounted at the bottom end of the bottom pipe (5), a high-sensitivity temperature sensor (6) is arranged inside the pretreatment heater (7), one side of the pretreatment heater (7) is connected to an oil-gas separator (8) via a pipeline, an observation window (9) is arranged at the front side of the oil-gas separator (8), a drain pipe (10) is arranged at the bottom of the oil-gas separator (8), a drain valve (11) is fixedly mounted on the drain pipe (10), and a high-sensitivity temperature sensor (6) is arranged at the top of the oil-gas separator (8). A rotator (12) is provided, a steam discharge pipe (13) is provided at the top of the oil-gas separator (8), a vacuum valve (14) is provided on the steam discharge pipe (13), a vacuum gauge (15) is fixedly installed on the steam discharge pipe (13), a condenser (16) is fixedly installed at the bottom of the steam discharge pipe (13), a condensate pipe (17) is fixedly installed at the bottom of the condenser (16), a check valve (18) is fixedly installed at the top of the condensate pipe (17), a vacuum pump (19) is fixedly installed at the bottom of the condensate pipe (17), an oil discharge pipe (20) is fixedly installed on one side of the bottom of the oil-gas separator (8), a microwave sensor (21) is provided inside the oil discharge pipe (20), and a vacuum pump (19) is fixedly installed at the bottom of the condensate pipe (17). A red water-containing warning light (22) and a green water-free indicator light (23) are provided at the top of the oil discharge pipe (20); a primary return pipe (24) is fixedly mounted on the oil discharge pipe (20); a primary on-off control valve (25) is fixedly mounted on the primary return pipe (24); a primary return control valve (26) is fixedly mounted on the primary return pipe (24); the top of the primary return pipe (24) is in communication with the oil-gas separator (8); an oil purifier (27) is fixedly mounted on the top of the oil discharge pipe (20); a pressure gauge (28) is provided on the top of the oil purifier (27); an oil outlet pipe (29) is fixedly mounted on the top of the oil purifier (27); a return valve (30) is fixedly mounted on the oil outlet pipe (29); an oil outlet joint (31) is fixedly mounted at one end of the oil outlet pipe (29); A secondary return pipe (32) is arranged at the bottom of the oil outlet pipe (29), a contamination sensor (33) is arranged inside the oil outlet pipe (29), a red warning light (34) indicating excessive impurities and a green indicator light (35) indicating that the cleanliness reaches the standard are arranged at the top of the oil purifier (27), a secondary return control valve (36) is fixedly installed at the top of the secondary return pipe (32), a secondary on-off control valve (37) is fixedly installed on the oil outlet pipe (29), an oil discharge pump (38) is arranged between the return valve (30) and the oil outlet joint (31), the oil discharge pump (38) is fixedly installed on the oil outlet pipe (29), an input end of the secondary on-off control valve (37) is connected to a monitoring intelligent controller (39), and the monitoring intelligent controller (39) is configured as a single-chip microcomputer.The output end of the monitoring intelligent controller (39) is connected to a high-sensitivity temperature display screen (40); The highly sensitive temperature sensor (6) is used to detect the temperature inside the pretreatment heater (7) and transmit the detection result to the monitoring intelligent controller (39) for processing; The microwave sensor (21) is used to detect whether the oil flowing through the oil drain pipe (20) contains water, and transmit the detection result to the monitoring intelligent controller (39) for processing; The contamination sensor (33) is used to detect the amount of impurities contained in the oil flowing through the oil outlet pipe (29), and transmit the detection result to the monitoring intelligent controller (39) for processing.

2. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The output end of the monitoring intelligent controller (39) is connected to the input end of the secondary reflux control valve (36), and the output end of the monitoring intelligent controller (39) is connected to the input end of the primary on-off control valve (25).

3. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The output end of the monitoring intelligent controller (39) is connected to the input end of the primary reflux control valve (26), and the output end of the monitoring intelligent controller (39) is connected to the input end of the pretreatment heater (7).

4. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The output end of the monitoring intelligent controller (39) is connected to the input end of the vacuum pump (19), and the output end of the monitoring intelligent controller (39) is connected to the input end of the oil drain pump (38).

5. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The input end of the monitoring intelligent controller (39) is connected to the output end of the high-sensitivity temperature sensor (6), and the input end of the monitoring intelligent controller (39) is connected to the output end of the microwave sensor (21).

6. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The input end of the monitoring intelligent controller (39) is connected to the output end of the pollution sensor (33), and the output end of the monitoring intelligent controller (39) is connected to the input end of the water-containing red warning light (22).

7. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The output end of the monitoring intelligent controller (39) is connected to the input end of the water-free green indicator light (23), and the output end of the monitoring intelligent controller (39) is connected to the input end of the impurity-exceeding red warning light (34).

8. The vacuum oil filter with monitoring function according to claim 1, characterized in that: The output end of the monitoring intelligent controller (39) is connected to the input end of the cleanliness standard green indicator light (35).

Images