Detection system for automatically detecting service life of filter

Abstract

The utility model relates to a detection system for automatically detecting the service life of a filter, and the system comprises a pneumatic switch which comprises a main body part and a wind speed induction probe connected with the main body part, the wind speed induction probe is disposed on the wind inlet surface or the wind outlet surface of the filter, and the wind speed induction probe changes the working state of the pneumatic switch according to the detected wind speed of the filter; the signal feedback device is connected with the main body part and is used for receiving the working state signal of the pneumatic switch, and the signal feedback device gives an instruction of whether to replace the filter or not according to the working state signal of the pneumatic switch; and the power supply device is electrically connected with the pneumatic switch and the signal feedback device and supplies power to the pneumatic switch and the signal feedback device. The filter can be automatically reminded to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection system for automatically detecting the life of a filter. Background Art

[0002] Existing filters basically do not have the function of life reminder. Generally, the following two methods are used to determine whether the filter needs to be replaced.

[0003] 1. Use fixed cycle and manual replacement method;

[0004] 2. Periodically test the air volume at the air outlet to see if the air volume can reach the target value. If the target wind speed cannot be met, the filter needs to be replaced; or, use a differential pressure gauge to see the pressure difference reading to determine whether it needs to be replaced.

[0005] The shortcomings of the prior art are as follows:

[0006] 1. Regular replacement may result in not knowing whether the filter life has reached its limit. Replacing it in advance will increase the replacement cost, and delaying the replacement will affect the cleanliness of the use environment.

[0007] Second, the method of periodically testing air volume can reduce waste to a certain extent, but it cannot completely eliminate waste, and it consumes a lot of manpower and material resources, which increases costs in another form, especially as today's labor costs are getting higher and higher;

[0008] Third, the use of differential pressure gauges requires a large initial investment, and maintenance personnel need to regularly observe the value of the differential pressure gauge. In addition, maintenance personnel need to know the failure resistance of each filter.

[0009] In summary, the current filter urgently needs a detection system that can automatically remind the filter to be replaced. Utility Model Content

[0010] Aiming at the deficiencies of the prior art, the utility model discloses a detection system for automatically detecting the life of a filter.

[0011] The technical solution adopted by the utility model is as follows:

[0012] A detection system for automatically detecting filter life, comprising:

[0013] A pneumatic switch, comprising a main body and a wind speed sensing probe connected to the main body, wherein the wind speed sensing probe is arranged on the air inlet surface or the air outlet surface of the filter, and the wind speed sensing probe changes the working state of the pneumatic switch according to the wind speed of the filter detected;

[0014] A signal feedback device connected to the main body, used to receive the working state signal of the pneumatic switch, and the signal feedback device gives an indication of whether to replace the filter according to the working state signal of the pneumatic switch;

[0015] The power supply device is electrically connected to the pneumatic switch and the signal feedback device respectively to provide power to the pneumatic switch and the signal feedback device.

[0016] In one embodiment of the present invention, when the wind speed sensing probe detects that the wind speed of the filter is lower than a preset wind speed, the working state of the pneumatic switch is changed.

[0017] In one embodiment of the present invention, the preset wind speed is in the range of 0.25 m / s-0.6 m / s.

[0018] In one embodiment of the present utility model, the working state of the pneumatic switch is normally open or normally closed.

[0019] In one embodiment of the present invention, the signal feedback device is an indicator light and / or a buzzer.

[0020] In one embodiment of the present invention, a control center is further included, and the signal feedback device feeds back the signal of the pneumatic switch to the control center.

[0021] In one embodiment of the present invention, the power supply device utilizes direct current power supply or alternating current power supply.

[0022] In one embodiment of the present invention, the power supply device utilizes photovoltaic power supply.

[0023] In one embodiment of the present invention, the power supply device is powered by a battery.

[0024] In one embodiment of the utility model, an impeller is further provided on the air inlet surface or the air outlet surface of the filter, and the impeller is connected to a power supply device, and the power supply device utilizes the rotation of the impeller to supply power to the pneumatic switch and the signal feedback device.

[0025] The above technical solution of the utility model has the following advantages compared with the prior art:

[0026] The automatic filter life detection system of the utility model can automatically remind you to replace the filter, avoiding waste caused by replacing the filter in advance, and avoiding the situation where the clean environment does not meet the requirements due to overdue filter replacement;

[0027] The detection system for automatically detecting the life of a filter described in the utility model can detect the life of the filter at regular intervals without manual work.

[0028] Compared with the existing technical solution using a differential pressure gauge, the automatic filter life detection system of the utility model requires less initial investment and does not require operators to remember the failure resistance at each location. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the first embodiment of the detection system for automatically detecting the life of a filter in the utility model.

[0031] Figure 2 It is a principle block diagram of the first embodiment of the detection system for automatically detecting the life of a filter in the utility model.

[0032] Figure 3 It is a schematic diagram of the second embodiment of the detection system for automatically detecting the life of a filter in the utility model.

[0033] Explanation of the reference numerals in the specification: 100, filter; 200, pneumatic switch; 201, wind speed sensing probe; 300, power supply device; 400, signal feedback device; 500, impeller. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0035] Embodiment 1

[0036] Combination Figure 1 and Figure 2 , a detection system for automatically detecting the life of a filter, comprising:

[0037] The pneumatic switch 200 includes a main body and a wind speed sensing probe 201 connected to the main body, wherein the wind speed sensing probe 201 is arranged on the air inlet surface or the air outlet surface of the filter 100, and the wind speed sensing probe 201 changes the working state of the pneumatic switch 200 according to the wind speed detected by the filter 100;

[0038] The signal feedback device 400 is connected to the main body and is used to receive the working state signal of the pneumatic switch 200. The signal feedback device 400 gives an indication of whether to replace the filter 100 according to the working state signal of the pneumatic switch 200.

[0039] The power supply device 300 is electrically connected to the pneumatic switch 200 and the signal feedback device 400 respectively, and provides power to the pneumatic switch 200 and the signal feedback device 400.

[0040] This embodiment provides a detection system for automatically detecting the life of the filter, which fully utilizes the efficiency of the filter and can automatically remind you to replace the filter, avoiding waste caused by replacing the filter prematurely, and also avoiding the situation where the clean environment does not meet the requirements due to overdue filter replacement. In addition, there is no need for manual regular detection of the life of the filter.

[0041] In this embodiment, when the wind speed sensing probe 201 detects that the wind speed of the filter 100 is lower than or higher than the preset wind speed, the working state of the pneumatic switch 200 is changed, wherein the preset wind speed ranges from 0.25 m / s to 0.6 m / s, and the preset wind speed is set according to the specific situation. Specifically, when the wind speed sensing probe 201 detects that the wind speed of the filter 100 is lower than the preset wind speed (i.e., the failure wind speed), it means that the inside of the filter 100 is too dirty, and foreign matter blocks the air inlet or outlet, then the working state of the pneumatic switch 200 changes (from normally open to normally closed), and outputs a signal to the signal feedback device 400 to remind the worker to replace the filter 100; when the wind speed sensing probe 201 detects that the wind speed of the filter 100 is higher than the preset wind speed (i.e., the failure wind speed), it means that the filter 100 has been replaced, and the air inlet or outlet of the filter 100 is unobstructed, then the working state of the pneumatic switch 200 changes (from normally closed to normally open). It is understandable that the pneumatic switch 200 has two working states, normally open or normally closed. It should be noted that the pneumatic switch 200 is a commercially available product, and the model of the pneumatic switch 200 can be adjusted according to the needs and selections of those skilled in the art.

[0042] In this embodiment, the signal feedback device 400 is an indicator light and / or a buzzer. Specifically, when the working state of the pneumatic switch 200 is normally open, the filter 100 does not need to be replaced, and the indicator light and / or the buzzer does not work; when the working state of the pneumatic switch 200 is normally closed, the filter 100 needs to be replaced, and the indicator light flashes and / or the buzzer sounds.

[0043] In this embodiment, the power supply device 300 can use one of direct current power supply, alternating current power supply, photovoltaic power supply, and battery power supply to supply power to the pneumatic switch 200 and the signal feedback device 400. The direct current power supply uses a direct current power supply to supply power to the pneumatic switch 200 and the signal feedback device 400; the alternating current power supply uses an alternating current power supply to supply power to the pneumatic switch 200 and the signal feedback device 400; the photovoltaic power supply uses a photovoltaic panel to convert light energy into electrical energy; the battery power supply stores electrical energy in a battery and then supplies electrical energy to the pneumatic switch 200 and the signal feedback device 400.

[0044] Embodiment 2

[0045] like Figure 3 As shown, the difference from the first embodiment is that the power supply device 300 is different.

[0046] In this embodiment, an impeller 500 is further provided on the air inlet or outlet surface of the filter 100, and the impeller 500 is connected to the power supply device 300, and the power supply device 300 uses the rotation of the impeller 500 to supply power to the pneumatic switch 200 and the signal feedback device 400. Obviously, the power supply device 300 uses wind power for power supply.

[0047] Embodiment 3

[0048] Based on the first embodiment, a detection system for automatically detecting the life of a filter also includes a control center, and a signal feedback device 400 feeds back the signal of the pneumatic switch 200 to the control center. The staff of the control center (i.e., the control background) is used to determine whether the filter 100 needs to be replaced according to the working state of the pneumatic switch 200. When the working state of the pneumatic switch 200 is normally open, the filter 100 does not need to be replaced; when the working state of the pneumatic switch 200 is normally closed, the filter 100 needs to be replaced, and the staff of the control center can contact the factory duty personnel by phone to replace the filter 100.

[0049] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A detection system for automatically detecting filter life, characterized in that: include: A pneumatic switch (200) comprises a main body and a wind speed sensing probe (201) connected to the main body, wherein the wind speed sensing probe (201) is arranged on an air inlet surface or an air outlet surface of a filter (100), and the wind speed sensing probe (201) changes the working state of the pneumatic switch (200) according to the wind speed detected by the filter (100); a signal feedback device (400) connected to the main body and used for receiving a working state signal of the pneumatic switch (200); the signal feedback device (400) gives an indication of whether to replace the filter (100) according to the working state signal of the pneumatic switch (200); The power supply device (300) is electrically connected to the pneumatic switch (200) and the signal feedback device (400) respectively, and provides power to the pneumatic switch (200) and the signal feedback device (400).

2. The automatic filter life detection system according to claim 1 is characterized in that: When the wind speed sensing probe (201) detects that the wind speed of the filter (100) is lower than a preset wind speed, the working state of the wind switch (200) is changed.

3. The automatic filter life detection system according to claim 2, characterized in that: The preset wind speed ranges from 0.25m / s to 0.6m / s.

4. The automatic filter life detection system according to claim 1, characterized in that: The working state of the pneumatic switch (200) is normally open or normally closed.

5. The automatic filter life detection system according to claim 1, characterized in that: The signal feedback device (400) is an indicator light and / or a buzzer.

6. The automatic filter life detection system according to claim 1 or 5, characterized in that: It also includes a control center, and the signal feedback device (400) feeds back the signal of the pneumatic switch (200) to the control center.

7. The automatic filter life detection system according to claim 1, characterized in that: The power supply device (300) uses direct current power supply or alternating current power supply.

8. The automatic filter life detection system according to claim 1, characterized in that: The power supply device (300) uses photovoltaic power supply.

9. The automatic filter life detection system according to claim 1, characterized in that: The power supply device (300) is powered by a storage battery.

10. The automatic filter life detection system according to claim 1, characterized in that: An impeller (500) is also provided on the air inlet surface or the air outlet surface of the filter (100); the impeller (500) is connected to the power supply device (300); the power supply device (300) utilizes the rotation of the impeller (500) to supply power to the pneumatic switch (200) and the signal feedback device (400).

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