A rotary dehumidifier with a temperature sensor protection structure
By designing a protective structure for the temperature sensor, the problem of decreased accuracy and reliability caused by high-temperature airflow was solved, thereby improving the accuracy of temperature measurement and operational reliability, and enhancing the sensor's effectiveness against electromagnetic dry fans, demonstrating its application in rotary dehumidifiers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI D&S AIR HANDLING EQUIP
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-03
AI Technical Summary
Temperature sensors in rotary dehumidifiers are exposed to high-temperature airflow due to their installation location, which leads to decreased measurement accuracy, reduced reliability, and shortened service life, thus affecting the safe operation and control of the dehumidifier.
Design a temperature sensor protection structure with a protective structure, including a baffle, a top plate, side plates and a bottom plate, made of galvanized steel plate. The protective structure protects the sensor without modifying the sensor or air duct structure, is easy to install, provides a high temperature resistant and corrosion resistant barrier, and reduces the impact of thermal stress.
Improve temperature measurement accuracy, enhance resistance to electromagnetic interference, extend sensor life, reduce failure risk and maintenance costs, and ensure stable operation of the dehumidifier.
Smart Images

Figure CN224454846U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of rotary dehumidifiers, specifically relating to a rotary dehumidifier with a temperature sensor protection structure. Background Technology
[0002] A temperature sensor is an instrument that converts temperature variables into a standardized output signal that can be transmitted. Its main function is to process and convert temperature signals from various temperature sensors and output a unified standard signal, such as a 4-20mA current signal or a 0-10V voltage signal, so as to facilitate connection and communication with other automation equipment.
[0003] In the field of industrial dehumidifiers, temperature sensors are used to monitor the temperature of the hot air on the air inlet side of the dehumidifier's regeneration zone in real time. The temperature signal from the thermal resistor is converted into a standard current signal and transmitted to the control system, enabling precise control of the regeneration heating temperature and ensuring stable and reliable operation of the dehumidifier. This allows for precise control of humidity in cleanrooms.
[0004] Generally, the temperature sensor is vertically installed from the bottom in the rotary regeneration air inlet duct. Its installation position is usually located in the negative pressure section of the rotary dehumidifier's blower. When the rotary regeneration zone has poor sealing and the negative pressure at the front of the blower is large, the blower will draw some high-temperature air from the regeneration zone and directly wash over the metal housing of the regeneration heating temperature sensor. This leads to problems such as decreased measurement accuracy, reduced reliability, and shortened service life of the sensor. Consequently, it affects the real-time and accurate monitoring and control of the regeneration heating temperature by the automatic control system, resulting in reduced safety redundancy during dehumidifier operation and systemic risks to equipment reliability. Utility Model Content
[0005] The purpose of this invention is to provide a rotary dehumidifier with a temperature sensor protection structure, which overcomes the shortcomings of the prior art. By setting a protective structure for the temperature sensor, the temperature measurement error is reduced, the temperature control accuracy is improved, the anti-electromagnetic interference capability and operational reliability of the temperature sensor are enhanced, the service life is extended, and the failure risk and maintenance cost are reduced.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0007] A rotary dehumidifier with a temperature sensor protection structure includes a rotary assembly, which includes a processing zone, a regeneration zone, and a rotary structure. The processing zone has an air inlet and an air outlet on both sides. The regeneration zone has an air inlet duct, and the two ends of the regeneration zone are the air inlet and the air outlet, respectively. The air inlet of the regeneration zone is located above the air outlet of the processing zone.
[0008] A temperature sensor probe is installed inside the air inlet duct of the regeneration zone, and the temperature sensor probe is located between the rotor assembly and the air inlet end of the regeneration zone. A temperature sensor body is installed at the bottom of the air inlet duct of the regeneration zone, and the temperature sensor body is connected to the bottom of the temperature sensor probe. A protective structure is provided on the side of the temperature sensor body near the air outlet end of the processing zone.
[0009] Furthermore, the protective structure includes a baffle located on one side of the temperature sensor body, and the area of the baffle is larger than the cross-section of the temperature sensor body. A top plate perpendicular to the baffle is fixed on the top of the baffle. At least two mounting holes are provided on the top plate, and the top plate is fixed to the bottom of the regeneration zone air inlet duct by screws passing through the mounting holes.
[0010] Furthermore, a first side plate and a second side plate are fixedly provided on both sides of the baffle, and a bottom plate is fixedly provided at the bottom end of the baffle. The included angles between the first side plate, the second side plate, and the bottom plate and the baffle are all 150°, and the included angles between the first side plate, the second side plate, and the bottom plate are all 150°.
[0011] Furthermore, the baffle, top plate, first side plate, second side plate, and bottom plate are integrally formed and made of galvanized steel sheet.
[0012] Furthermore, a sealing strip is provided at the connection between the processing area and the regeneration area.
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] 1. This utility model reduces temperature measurement errors, improves temperature control accuracy, enhances the electromagnetic interference resistance and operational reliability of the temperature sensor, extends its service life, and reduces failure risks and maintenance costs by setting a protective structure for the temperature sensor.
[0015] 2. This utility model uses a top-fixed galvanized steel plate, which does not require modification of the existing sensor or air duct structure, making installation and maintenance convenient and suitable for various rotary dehumidifiers; the galvanized steel plate provides a high-temperature resistant and corrosion-resistant physical barrier, reducing the performance degradation of temperature sensor electronic components caused by long-term thermal stress, reducing the failure rate, and extending the expected life of the sensor. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the rotor assembly in a rotary dehumidifier with a temperature sensor protection structure.
[0017] Figure 2 This is a schematic diagram of the protective plate in a rotary dehumidifier with a temperature sensor protection structure.
[0018] In the diagram: 1. Air inlet of the processing zone; 2. Rotary structure; 3. Protective structure; 4. Rotary assembly; 5. Air outlet of the processing zone; 6. Temperature sensor body; 7. Air inlet of the regeneration zone; 8. Air inlet duct of the regeneration zone; 9. Temperature sensor probe; 10. Air outlet of the regeneration zone; 11. Sealing strip; 12. Base plate; 13. Baffle; 14. First side plate; 15. Mounting hole; 16. Top plate; 17. Second side plate. Detailed Implementation
[0019] 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.
[0020] like Figures 1-2 As shown, the rotary dehumidifier with temperature sensor protection structure of this utility model includes a rotary assembly 4, which includes a processing zone, a regeneration zone and a rotary structure 2. The processing zone has an air inlet 1 and an air outlet 5 on both sides. The regeneration zone is provided with a regeneration zone air inlet duct 8, and the regeneration zone has an air inlet 7 and an air outlet 10 on both sides. The regeneration zone air inlet 7 is located above the processing zone air outlet 5.
[0021] A temperature sensor probe 9 is installed in the air inlet duct 8 of the regeneration zone, and the temperature sensor probe 9 is located between the rotary wheel assembly 4 and the air inlet end 7 of the regeneration zone. A temperature sensor body 6 is installed at the bottom of the air inlet duct 8 of the regeneration zone, and the temperature sensor body 6 is connected to the bottom of the temperature sensor probe 9. A protective structure 3 is provided on the side of the temperature sensor body 6 near the air outlet end 5 of the processing zone.
[0022] To protect the temperature sensor, the protective structure 3 includes a baffle 13 located on one side of the temperature sensor body 6, and the area of the baffle 13 is larger than the cross-section of the temperature sensor body 6. A top plate 16 perpendicular to the baffle 13 is fixed to the top of the baffle 13. At least two mounting holes 15 are provided on the top plate 16, and the top plate 16 is fixed to the bottom of the regeneration zone air inlet duct 8 by screws passing through the mounting holes 15. By setting the baffle 13, the high-temperature regeneration air drawn in when the sealing performance of the isolation sealing strip 11 between the processing zone and the regeneration zone is poor and the negative pressure at the front of the blower is large can be effectively blocked from directly washing the temperature sensor body 6.
[0023] To better protect the temperature sensor body 6, a first side plate 14 and a second side plate 17 are fixed on both sides of the baffle 13, and a bottom plate 12 is fixed at the bottom of the baffle 13. The included angles between the first side plate 14, the second side plate 17, and the bottom plate 12 and the baffle 13 are all 150°. The high-temperature regeneration air is guided to flow around the baffle 13 through the bottom plate 12, the first side plate 14, and the second side plate 17, which reduces the impact of the high-temperature regeneration air on the baffle 13.
[0024] To improve the strength of the protective structure 3, the baffle 13, top plate 16, first side plate 14, second side plate 17 and bottom plate 12 are integrally formed and made of galvanized steel plate; providing a high-temperature resistant and corrosion-resistant physical barrier, reducing the performance degradation of temperature sensor electronic components caused by long-term thermal stress, reducing the failure rate and extending the expected life of the sensor.
[0025] To improve sealing, a sealing strip 11 is provided at the connection between the processing zone and the regeneration zone; by setting the sealing strip 11, the sealing between the processing zone and the regeneration zone is improved, fundamentally preventing the high-temperature regeneration air from washing away the temperature sensor body 6.
[0026] In summary, the rotary dehumidifier with a temperature sensor protection structure described in this utility model ensures that when the blower draws high-temperature regeneration air from the regeneration zone towards the temperature sensor body 6, the airflow is blocked by the baffle 13 and then guided to the surrounding area through the bottom plate 12, the first side plate 14, and the second side plate 17. The high-temperature regeneration air does not come into contact with the temperature sensor body 6, reducing temperature measurement errors, improving temperature control accuracy, enhancing the temperature sensor's anti-electromagnetic interference capability and operational reliability, extending its service life, and reducing failure risks and maintenance costs.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A rotary dehumidifier with a temperature sensor protection structure, comprising a rotary assembly (4), the rotary assembly (4) comprising a processing zone, a regeneration zone and a rotary structure (2), wherein the two sides of the processing zone are respectively a processing zone air inlet (1) and a processing zone air outlet (5), the regeneration zone is provided with a regeneration zone air inlet duct (8), and the two sides of the regeneration zone are respectively a regeneration zone air inlet (7) and a regeneration zone air outlet (10), and the regeneration zone air inlet (7) is located above the processing zone air outlet (5); characterized in that A temperature sensor probe (9) is provided in the air inlet duct (8) of the regeneration zone, and the temperature sensor probe (9) is located between the rotary wheel assembly (4) and the air inlet end (7) of the regeneration zone. A temperature sensor body (6) is installed at the bottom of the air inlet duct of the regeneration zone, and the temperature sensor body (6) is connected to the bottom of the temperature sensor probe (9). A protective structure (3) is provided on the side of the temperature sensor body (6) near the air outlet end (5) of the processing zone.
2. A rotary dehumidifier with a temperature sensor protection structure according to claim 1, characterized in that: The protective structure (3) includes a baffle (13) located on one side of the temperature sensor body (6), and the area of the baffle (13) is larger than the cross section of the temperature sensor body (6). A top plate (16) perpendicular to the baffle (13) is fixed on the top of the baffle (13). At least two mounting holes (15) are provided on the top plate (16), and the top plate (16) is fixed to the bottom of the regeneration zone air inlet duct (8) by screws passing through the mounting holes (15).
3. The rotary dehumidifier with temperature sensor protection structure according to claim 2, characterized in that: The baffle (13) is fixed with a first side plate (14) and a second side plate (17) on both sides, and a bottom plate (12) is fixed at the bottom end of the baffle (13). The included angle between the first side plate (14), the second side plate (17) and the bottom plate (12) and the baffle (13) is 150°. The included angle between the first side plate (14) and the second side plate (17) and the bottom plate (12) is 150°.
4. The rotary dehumidifier with temperature sensor protection structure according to claim 3, characterized in that: The baffle (13), top plate (16), first side plate (14), second side plate (17) and bottom plate (12) are integrally formed and made of galvanized steel plate.
5. The rotary dehumidifier with temperature sensor protection structure according to claim 1, characterized in that: A sealing strip (11) is provided at the connection between the processing zone and the regeneration zone.