Automatic compressed air quality monitoring and adjusting device
By using dew point meters and temperature and humidity sensors, combined with refrigerated dryers and desiccant dryers, the problem of icing and condensation in compressed air pipelines has been solved, achieving automated air quality adjustment, preventing equipment corrosion, ensuring dry air, and supporting the smooth operation of subsequent compression work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING WELLHOPE AGRI TECH
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, compressed air is prone to freezing or condensation in air pipelines and equipment, leading to increased condensate, equipment corrosion, and hindering subsequent air compression operations. Furthermore, management personnel cannot effectively assess the quality of the compressed air.
Using a dew point meter, temperature and humidity sensors, and an automatic monitoring system, combined with a refrigerated dryer and a desiccant dryer, the compressed air quality is monitored and adjusted in real time. The refrigerated dryer cools the air to the dew point temperature range, while the desiccant dryer cleans the air, preventing corrosion caused by icing or condensation.
It enables automatic monitoring and adjustment of compressed air quality, prevents corrosion of air pipelines and equipment, ensures dry air, and supports the smooth operation of subsequent compression work.
Smart Images

Figure CN224176455U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressed air equipment technology, specifically to an automatic monitoring and adjustment device for compressed air quality. Background Technology
[0002] Compressed air is air that has been compressed by an external force. Air is compressible; compressed air is air whose volume is reduced and whose pressure is increased after being processed by an air compressor. Compressed air is an important power source, and compared with other energy sources, it has the following distinct characteristics: it is clear and transparent, easy to transport, has no special harmful properties, poses no fire hazard, is not afraid of overload, can work in many adverse environments, and is abundant and inexhaustible.
[0003] However, research revealed that in existing technologies, when factories transport compressed air through pipelines, icing or condensation can easily occur in the pipelines and equipment due to weather conditions. Furthermore, equipment managers cannot effectively assess the quality of the compressed air, leading to an increase in condensation inside the equipment and pipelines. This not only makes the pipelines and equipment prone to rust and corrosion but also hinders subsequent air compression operations. Therefore, it is essential to design an automatic compressed air quality monitoring and adjustment device to solve this problem. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an automatic monitoring and adjustment device for compressed air quality. This device solves the problem that existing compressed air equipment is prone to icing or condensation in the air pipelines and equipment due to weather conditions. Furthermore, equipment managers cannot effectively judge the compressed air quality, which leads to an increase in condensate in the compressed air inside the equipment and air pipelines. This not only makes the air pipelines and equipment prone to rust and corrosion but also hinders subsequent air compression operations.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic compressed air quality monitoring and adjustment device, comprising a base plate and a vertical plate. The vertical plate is fixedly connected to the top of the base plate, and an air supply pipe is fixedly connected to the upper interior of the vertical plate. A dew point meter is mounted on the outer wall of the vertical plate, and the dew point meter is connected to the upper part of the dew point meter via an electrical wire. The monitoring end of the dew point meter is in contact with the outer wall of the air supply pipe. An L-shaped plate is fixedly connected to the outer wall of the dew point meter, and the L-shaped plate is fixedly connected to the vertical plate. An air storage mechanism and a processing mechanism are connected to the air inlet end of the air supply pipe.
[0006] Preferably, the gas storage mechanism includes a gas storage tank fixedly connected to the base plate, the gas storage tank is connected to an air compressor through a high-pressure pipe, and the bottom end of the air compressor is in contact with the base plate. A one-way valve is installed at the outlet end of the gas transmission pipeline. A temperature and humidity sensor is connected to the vertical plate. A safety valve and a pressure gauge are respectively connected to the top and front end of the gas storage tank.
[0007] Preferably, the processing mechanism includes a refrigerated dryer installed on the top of the base plate. The air inlet and outlet of the refrigerated dryer are connected to the air supply pipeline through a first connecting pipe and a second connecting pipe, respectively. A first shut-off valve is installed on the first connecting pipe, and a desiccant assembly is installed on the outside of the refrigerated dryer.
[0008] Preferably, the desiccant assembly includes a desiccant installed on the top of the base plate, and the air inlet and outlet of the desiccant are connected to the air supply pipe through a third connecting pipe and a fourth connecting pipe, respectively.
[0009] Preferably, a second shut-off valve is provided between the first connecting pipe and the second connecting pipe, and the second shut-off valve is connected to the gas transmission pipe.
[0010] Preferably, a third shut-off valve is provided between the third connecting pipe and the fourth connecting pipe, and the third shut-off valve is connected to the gas transmission pipe, and the third connecting pipe is connected to the fourth shut-off valve. Beneficial effects
[0011] This utility model provides an automatic compressed air quality monitoring and adjustment device, which has the following beneficial effects:
[0012] Through the cooperation of structures such as gas pipelines, dew point meters, and temperature and humidity sensors, the gas pipelines can be monitored by dew point meters and temperature and humidity sensors, and the monitoring results can be displayed on the dew point meters. This allows equipment managers to see the monitoring data, quickly determine the quality of compressed air, and take corresponding actions, which is more conducive to the subsequent compression work.
[0013] Through the coordinated operation of air compressors, air tanks, refrigerated dryers, and desiccant dryers, when the monitored values at the air delivery pipeline exceed the set range, it indicates the presence of icing or condensation. At this point, the refrigerated dryer and desiccant dryer are activated. The refrigerated dryer can lower the temperature of the compressed air to a dew point temperature range of 2-10℃, while the desiccant dryer can thoroughly clean and dry the compressed air. As a result, the dew point temperature and dryness of the dried compressed air can be maintained below the ambient temperature, with a difference of 5-10℃. This prevents the air delivery pipelines and equipment from rusting and corroding due to contact with condensate from icing or condensation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a partially enlarged schematic diagram of the present invention.
[0016] Figure 3 This is a partially enlarged schematic diagram of the present invention.
[0017] In the diagram: 1. Base plate; 2. Vertical plate; 3. Gas pipeline; 4. Dew point meter; 5. L-shaped plate; 6. Dew point meter; 7. Gas storage tank; 8. High-pressure pipe; 9. Air compressor; 10. Check valve; 11. Temperature and humidity sensor; 12. Refrigerated dryer; 13. First connecting pipe; 14. Second connecting pipe; 15. First shut-off valve; 16. Second shut-off valve; 17. Third shut-off valve; 18. Desiccant dryer; 19. Third connecting pipe; 20. Fourth connecting pipe; 21. Safety valve; 22. Pressure gauge; 23. Fourth shut-off valve. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3 This utility model provides a technical solution: an automatic compressed air quality monitoring and adjustment device, including a base plate 1 and a vertical plate 2. The top of the base plate 1 is fixedly connected to the vertical plate 2. An air supply pipe 3 is fixedly connected to the upper interior of the vertical plate 2. A dew point meter 4 is arranged on the outer wall of the vertical plate 2. A dew point meter 6 is connected to the top of the dew point meter 4 by a wire. The monitoring end of the dew point meter 6 is in contact with the outer wall of the air supply pipe 3. An L-shaped plate 5 is fixedly connected to the outer wall of the dew point meter 6 and is fixedly connected to the vertical plate 2. An air storage mechanism and a processing mechanism are connected to the air inlet end of the air supply pipe 3.
[0020] A dew point meter 4 and an L-shaped plate 5 are bolted together on the vertical plate 2. A dew point meter 6 is installed on the L-shaped plate 5. The dew point meter 6 is connected to the dew point meter 4 via wires. In this way, the dew point meter 6 can monitor the gas pipeline 3 in the factory. When the monitored temperature difference is within the temperature difference set by the dew point meter 4 (5-10°C), it indicates that there is an icing or condensation problem at the gas pipeline 3. This technology can be programmed into the application central control system in the central control PLC cabinet. Through this system, the monitoring data can be collected, displayed, and managed. This is existing technology, and those skilled in the art can fully implement it, so it will not be described in detail.
[0021] In this embodiment, the gas storage mechanism includes a gas storage tank 7 fixedly connected to the base plate 1. The gas storage tank 7 is connected to an air compressor 9 through a high-pressure pipe 8, and the bottom end of the air compressor 9 is in contact with the base plate 1. A one-way valve 10 is installed at the outlet end of the gas transmission pipe 3. A temperature and humidity sensor 11 is connected to the vertical plate 2. A safety valve 21 and a pressure gauge 22 are respectively connected to the top and front end of the gas storage tank 7.
[0022] By installing a one-way valve 10 on the gas pipeline 3, the gas pipeline 3 can always be kept in an anti-backflow state.
[0023] In this embodiment, the processing mechanism includes a refrigerated dryer 12 installed on the top of the base plate 1. The air inlet and air outlet of the refrigerated dryer 12 are connected to the air supply pipe 3 through a first connecting pipe 13 and a second connecting pipe 14, respectively. A first shut-off valve 15 is installed on the first connecting pipe 13. A desiccant assembly is installed on the outside of the refrigerated dryer 12.
[0024] By setting the refrigerated dryer 12, the temperature of compressed air can be reduced to a dew point temperature range of 2-10℃. When the ambient temperature is greater than 10℃, only the refrigerated dryer needs to be turned on, and only the corresponding shut-off valve needs to be operated accordingly.
[0025] In this embodiment, the desiccant assembly includes a desiccant 18 installed on the top of the base plate 1. The air inlet and air outlet of the desiccant 18 are connected to the air supply pipe 3 through the third connecting pipe 19 and the fourth connecting pipe 20, respectively.
[0026] By setting up the desiccant 18, compressed air can be thoroughly cleaned and dried. In winter, a cold drying plus desiccant mode can be used to better process the compressed air.
[0027] In this embodiment, a second shut-off valve 16 is provided between the first connecting pipe 13 and the second connecting pipe 14, and the second shut-off valve 16 is connected to the gas transmission pipe 3.
[0028] In this embodiment, a third shut-off valve 17 is provided between the third connecting pipe 19 and the fourth connecting pipe 20, and the third shut-off valve 17 is connected to the gas transmission pipe 3. The third connecting pipe 19 is connected to the fourth shut-off valve 23.
[0029] Furthermore, all the shut-off valves in this device can be replaced with solenoid valves for system control, thereby improving control and adjustment efficiency.
[0030] It is worth noting that the electrical structures and other components involved in this application can be selected according to the user's needs, as long as they meet the requirements of this application. At the same time, the corresponding control circuits and other components are all existing technologies, which can be fully implemented by those skilled in the art, so they will not be described in detail here.
[0031] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process.
[0032] Example: When this device is needed, it can be installed in the factory, and the external power supply of each electrical structure and the central control PLC cabinet can be connected. Programming control is performed in the central control system, setting the monitoring range of the dew point meter 6 and the temperature and humidity sensor 11. Then, the air compressor 9 is started to compress air, which is discharged into the air tank 7 through the high-pressure pipe 8. When the values monitored by the dew point meter 4 and the temperature and humidity sensor 11 are within the set range, that is, no icing or condensation is detected, the first shut-off valve 15 and the fourth shut-off valve 23 can be closed, and the second shut-off valve 16 and the third shut-off valve 17 can be opened, so that the compressed air is discharged directly from the air supply pipe 3 without passing through the refrigerated dryer 12 and the desiccant 18. When the values monitored by the dew point meter 4 and the temperature and humidity sensor 11 exceed the set range, that is, icing or condensation is detected, the first shut-off valve 15 and the fourth shut-off valve 23 can be closed, and the second shut-off valve 16 and the third shut-off valve 17 can be opened, so that the compressed air is discharged directly from the air supply pipe 3 without passing through the refrigerated dryer 12 and the desiccant 18. When the values monitored by the dew point meter 4 and the temperature and humidity sensor 11 exceed the set range, that is, icing or condensation is detected, the first shut-off valve 15 and the fourth shut-off valve 23 can be opened. With valve 3 in the open position and the second shut-off valve 16 and the third shut-off valve 17 in the closed position, the refrigerated dryer 12 and the desiccant dryer 18 are then started. The compressed air in the gas delivery pipeline 3 will then enter the refrigerated dryer 12 through the first connecting pipe 13, lowering the compressed air temperature to a dew point temperature within the range of 2-10℃. The compressed air then flows into the gas delivery pipeline 3 through the second connecting pipe 14 and into the desiccant dryer 18 through the third connecting pipe 19. The desiccant dryer 18 thoroughly cleans and dries the compressed air, and then discharges it into the gas delivery pipeline 3 through the fourth connecting pipe 20. Finally, the compressed air is discharged through the gas delivery pipeline 3. This prevents the gas delivery pipeline 3 and equipment from rusting and corroding due to contact with condensate from ice or condensation. Simultaneously, equipment management personnel can view monitoring data through the dew point meter 4 and the temperature and humidity sensor 11, quickly assessing the compressed air quality and taking corresponding actions, thus facilitating subsequent compression operations.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic compressed air quality monitoring and adjustment device, comprising a base plate (1) and a vertical plate (2), wherein the top of the base plate (1) is fixedly connected to the vertical plate (2), characterized in that: A gas transmission pipe (3) is fixedly connected to the upper part of the vertical plate (2). A dew point meter (4) is installed on the outer wall of the vertical plate (2). A dew point meter (6) is connected to the upper part of the dew point meter (4) by a wire. The monitoring end of the dew point meter (6) is in contact with the outer wall of the gas transmission pipe (3). An L-shaped plate (5) is fixedly connected to the outer wall of the dew point meter (6). The L-shaped plate (5) is fixedly connected to the vertical plate (2). A gas storage mechanism and a processing mechanism are connected to the gas inlet end of the gas transmission pipe (3).
2. The automatic compressed air quality monitoring and adjustment device according to claim 1, characterized in that, The gas storage mechanism includes a gas storage tank (7) fixedly connected to the base plate (1). The gas storage tank (7) is connected to an air compressor (9) through a high-pressure pipe (8), and the bottom end of the air compressor (9) is in contact with the base plate (1). A one-way valve (10) is installed at the outlet end of the gas transmission pipe (3). A temperature and humidity sensor (11) is connected to the vertical plate (2). A safety valve (21) and a pressure gauge (22) are respectively connected to the top and front end of the gas storage tank (7).
3. The automatic compressed air quality monitoring and adjustment device according to claim 1, characterized in that, The processing mechanism includes a refrigerated dryer (12) installed on the top of the base plate (1). The air inlet and outlet of the refrigerated dryer (12) are connected to the gas transmission pipeline (3) through the first connecting pipe (13) and the second connecting pipe (14), respectively. A first shut-off valve (15) is installed on the first connecting pipe (13). A desiccant assembly is installed on the outside of the refrigerated dryer (12).
4. The automatic compressed air quality monitoring and adjustment device according to claim 3, characterized in that, The desiccant assembly includes a desiccant (18) installed on the top of the base plate (1). The air inlet and outlet of the desiccant (18) are connected to the air supply pipe (3) through the third connecting pipe (19) and the fourth connecting pipe (20), respectively.
5. The automatic compressed air quality monitoring and adjustment device according to claim 3, characterized in that, A second shut-off valve (16) is provided between the first connecting pipe (13) and the second connecting pipe (14), and the second shut-off valve (16) is connected to the gas transmission pipe (3).
6. The automatic compressed air quality monitoring and adjustment device according to claim 4, characterized in that, A third shut-off valve (17) is provided between the third connecting pipe (19) and the fourth connecting pipe (20), and the third shut-off valve (17) is connected to the gas transmission pipe (3). The third connecting pipe (19) is connected to the fourth shut-off valve (23).