Dry coil cooler
By installing temperature monitoring components on the outside of the inlet and outlet water pipes of the dry coil cooler, the problem of insufficient manual observation is solved, enabling real-time monitoring and alarm of water temperature and preventing condensation.
Patent Information
- Application Number
- CN202422687780.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing dry coil coolers require continuous manual monitoring of the thermometer, which cannot trigger alarms in a timely manner. This results in the inability to adjust the water temperature promptly when it is abnormal, and condensation is likely to occur.
Temperature monitoring components, including shape memory alloy plates, push rods, infrared monitors, and alarms, are installed on the outside of the inlet and outlet pipes of the dry coil to monitor the water temperature in real time and trigger an alarm when the temperature exceeds the range.
It enables accurate real-time monitoring and alarm of water temperature in inlet and outlet pipes, ensuring that the surface temperature of the dry coil is higher than the dew point temperature and avoiding condensation.
Smart Images

Figure CN223550626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry coil technology, and more specifically, to a dry coil cooler. Background Technology
[0002] "Dry coil" refers to a heat exchange coil in an air conditioning system that only handles sensible heat load and not latent heat load. The chilled water inlet temperature of the coil is generally above 13°C, which is above the dew point temperature of the indoor air. Condensation is generally not produced during the heat exchange process, indicating dry operation. This equipment is mostly used in places where the system's circulating air volume requirements are large, but the indoor moisture load is small, such as clean pharmaceutical workshops, clean electronic factories, and other large cleanroom air conditioning systems. The fan draws indoor air or a mixture of indoor and outdoor air, cools or heats it through a surface cooler, and then delivers it into the room, lowering or raising the indoor temperature to meet the temperature requirements of high-precision R&D and production environments such as electronics factories or pharmaceutical plants.
[0003] Regarding the aforementioned technologies, in the existing methods, most personnel observe whether the water temperature is within the normal range by looking at the thermometers installed on the inlet and outlet pipes of the dry coil. However, this operation not only requires personnel to observe the thermometers regularly and continuously, but also cannot actively alarm when the water temperature is abnormal, resulting in the inability to make adjustments in the first instance when the water temperature drops. Therefore, this solution proposes a dry coil cooler. Utility Model Content
[0004] 1. Technical problem to be solved:
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a dry coil cooler. By installing temperature monitoring components on the outside of the inlet and outlet water pipes of the dry coil, the dry coil cooler can accurately monitor the water temperature of the inlet and outlet water pipes in real time during use. At the same time, it can also sound an alarm when the water temperature exceeds the limit, so that personnel can make adjustments as soon as the water temperature drops, ensuring that the surface temperature of the dry coil is higher than the dew point temperature of the surrounding air, thus preventing condensation.
[0006] 2. Technical Solution:
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A dry coil cooler includes a dry coil body, with an inlet pipe and an outlet pipe respectively embedded on the side end of the dry coil body. The outer ends of the inlet pipe and the outlet pipe are respectively provided with through holes, and temperature monitoring components are installed on the outer ends of the inlet pipe and the outlet pipe.
[0009] The temperature monitoring component includes a mounting clamp sleeved on the outside of the inlet and outlet pipes. A monitoring box is mounted on the upper end of the mounting clamp. A shape memory alloy sheet is installed at the bottom of the monitoring box. A push rod is fixedly connected to the side end of the shape memory alloy sheet. An infrared monitor is installed on the top of the monitoring box. A power supply is installed at the left corner of the monitoring box. A pressure-sensitive switch at the same level as the push rod is installed on the side wall of the monitoring box. The infrared monitor is located above the push rod. An alarm is installed on the outer end of the monitoring box.
[0010] A further improvement is that the mounting fixture includes an elastic roll, the upper end of which is fixedly connected to a positioning platform, the upper end of which is inserted with a heat-conducting plate, the heat-conducting plate penetrating to one side of the inner wall of the elastic roll, and the bottom end of which is fixedly connected to a heat-conducting rod, the heat-conducting rod penetrating through a through hole to the inner wall between the water inlet pipe and the water outlet pipe.
[0011] A further improvement is that the bottom of the monitoring box is provided with a positioning hole that matches the mounting fixture, the upper end of the positioning hole is provided with a storage groove that matches the shape memory alloy sheet, and the upper end of the storage groove is provided with a sliding groove that matches the push rod.
[0012] A further improvement is that the phase transition temperature of the shape memory alloy sheet installed on the outside of the water inlet pipe is 10°C and the limiting phase transition temperature is 15°C, and the phase transition temperature of the shape memory alloy sheet installed on the outside of the water outlet pipe is 15°C and the limiting phase transition temperature is 20°C.
[0013] A further improvement is that an installation block is installed on the outer end of the monitoring box.
[0014] 3. Beneficial effects:
[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0016] This utility model is reasonably designed. By installing temperature monitoring components on the outside of the inlet and outlet water pipes of the dry coil, the dry coil cooler can accurately monitor the water temperature of the inlet and outlet water pipes in real time during use. At the same time, it can also alarm when the water temperature exceeds the limit, ensuring that the surface temperature of the dry coil is higher than the dew point temperature of the surrounding air, so as not to cause condensation.
[0017] This invention can ensure that the internal temperature of the inlet pipe of the dry coil is 12-14℃ and the internal temperature of the outlet pipe is 17-19℃ in real time, which greatly ensures that the surface temperature of the dry coil is higher than the dew point temperature of the surrounding air and prevents condensation.
[0018] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of the temperature monitoring component of this utility model;
[0021] Figure 3 This is an exploded structural diagram of the temperature monitoring component of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Dry coil body; 2. Inlet pipe; 3. Outlet pipe;
[0024] 4. Temperature monitoring component; 41. Mounting clamp; 411. Elastic roll; 412. Positioning stage; 413. Heat-conducting sheet;
[0025] 42. Monitoring box; 421. Positioning hole; 422. Storage slot; 423. Slide groove;
[0026] 43. Shape memory alloy sheet; 44. Actuator; 45. Infrared monitor; 46. Pressure-sensitive switch; 47. Power supply; 48. Alarm; 49. Mounting block. Detailed Implementation
[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example
[0031] Please see Figure 1-3 A dry coil cooler includes a dry coil body 1, with an inlet pipe 2 and an outlet pipe 3 respectively embedded on the side end of the dry coil body 1. The outer ends of the inlet pipe 2 and the outlet pipe 3 are respectively provided with through holes, and temperature monitoring components 4 are installed on the outer ends of the inlet pipe 2 and the outlet pipe 3.
[0032] The temperature monitoring component 4 includes a mounting clamp 41 sleeved on the outside of the inlet pipe 2 and the outlet pipe 3. A monitoring box 42 is sleeved on the upper end of the mounting clamp 41. A shape memory alloy sheet 43 is installed at the bottom of the monitoring box 42. A push rod 44 is fixedly connected to the side end of the shape memory alloy sheet 43. An infrared monitor 45 is installed on the top of the monitoring box 42. A power supply 47 is installed on the left corner of the monitoring box 42. A pressure-sensitive switch 46 is installed on the side wall of the monitoring box 42 at the same level as the push rod 44. The infrared monitor 45 is located above the push rod 44. An alarm 48 is installed on the outer end of the monitoring box 42.
[0033] More specifically: the shape memory alloy sheet 43 installed on the outside of the water inlet pipe 2 has a phase change temperature of 10°C and a limiting phase change temperature of 15°C; the shape memory alloy sheet 43 installed on the outside of the water outlet pipe 3 has a phase change temperature of 15°C and a limiting phase change temperature of 20°C.
[0034] In order to enable existing personnel to conveniently observe whether the water temperature of the inlet and outlet pipes installed on the dry coil is within the normal range during the use of this solution, in this embodiment, temperature monitoring components 4 are installed on the outside of the inlet and outlet pipes of the dry coil, so that the dry coil cooler can accurately monitor the water temperature of the inlet and outlet pipes in real time during use, and can also alarm when the water temperature exceeds the normal range, so as to ensure that the surface temperature of the dry coil is higher than the dew point temperature of the surrounding air and prevent condensation.
[0035] In use, the personnel can use the deformation characteristics of the mounting clamp 41 to fit and engage it onto the surface of the inlet and outlet water pipes of the dry coil. Then, the monitoring box 42 is fitted onto the outside of the mounting clamp 41. As a result, the bottom of the shape memory alloy sheet 43 is attached to the top of the mounting clamp 41. So that when the fluid flows inside the inlet and outlet water pipes of the dry coil, the mounting clamp 41 transfers the water temperature to the surface of the shape memory alloy sheet 43. Under the deformation memory of the shape memory alloy sheet 43, it deforms according to the water temperature, thereby driving the push rod 44 to move laterally.
[0036] During the deformation of the shape memory alloy sheet 43, since the phase change temperature of the shape memory alloy sheet 43 installed on the outside of the water inlet pipe 2 is 10℃ and the limit phase change temperature is 15℃, when the temperature sensed by the shape memory alloy sheet 43 is between 11℃ and 14℃, the deformation distance of the shape memory alloy sheet 43 is below the infrared monitor 45 and does not come into contact with the pressure-sensitive switch 46. At this time, the infrared monitor 45 detects the push rod 44 below, indicating that the water temperature of the water inlet pipe is normal. When the deformation temperature of the shape memory alloy sheet 43 exceeds 14℃, the push rod 44 is passively moved and comes into contact with the surface of the pressure-sensitive switch 46. At this time, the alarm 48 is triggered to sound an alarm, indicating that the temperature of the water inlet pipe is too high and condensation is likely to occur.
[0037] Similarly, the shape memory alloy sheet 43 installed on the outside of the water inlet pipe 2 has a phase change temperature of 15℃ and a limit phase change temperature of 20℃. When the temperature of the water outlet pipe is higher than 20℃, an alarm will be triggered to alert personnel. The temperature is between 16℃ and 19℃, which is considered normal.
[0038] In summary, this embodiment can ensure that the internal temperature of the inlet pipe of the dry coil is 12-14℃ and the internal temperature of the outlet pipe is 17-19℃ in real time, which greatly ensures that the surface temperature of the dry coil is higher than the dew point temperature of the surrounding air and prevents condensation.
[0039] Please see Figure 2-3The mounting fixture 41 includes an elastic roll 411. A positioning platform 412 is fixedly connected to the upper end of the elastic roll 411. A heat-conducting plate 413 is inserted into the upper end of the positioning platform 412. The heat-conducting plate 413 extends through to one side of the inner wall of the elastic roll 411. A heat-conducting rod is fixedly connected to the bottom end of the heat-conducting plate 413. The heat-conducting rod extends through a through hole between the inner walls of the water inlet pipe 2 and the water outlet pipe 3.
[0040] During use, this solution allows the heat-conducting rod to penetrate into the interior of the inlet pipe 2 and the outlet pipe 3. This enables the heat-conducting rod to transfer the water temperature to the surface of the shape memory alloy sheet 43 through the heat-conducting plate 413, thereby causing the shape memory alloy sheet 43 to undergo a relative phase change under temperature changes. This facilitates personnel monitoring the temperature of the internal fluid.
[0041] Please see Figure 2-3 The bottom of the monitoring box 42 is provided with a positioning hole 421 that matches the mounting clamp 41. The upper end of the positioning hole 421 is provided with a storage groove 422 that matches the shape memory alloy sheet 43. The upper end of the storage groove 422 is provided with a sliding groove 423 that matches the push rod 44.
[0042] During use, the positioning hole 421 is used for mounting on the outside of the positioning platform 412. Before use, the heat-conducting plate 413 can be inserted into the upper side of the positioning platform 412, and then the monitoring box 42 can be slidably mounted on the surface of the positioning platform 412. Before that, the memory alloy sheet 43 can be slidably placed inside the storage groove 422.
[0043] Please see Figure 2-3 An installation block 49 is installed on the outer end of the monitoring box 42.
[0044] In the process of using this solution, by setting the mounting block 49, the temperature monitoring component 4 can be fixed more stably during the temperature monitoring process.
[0045] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A dry coil cooler, comprising a dry coil body (1), characterized in that: The dry coil body (1) is respectively fitted with an inlet pipe (2) and an outlet pipe (3) on its side ends. The outer ends of the inlet pipe (2) and the outlet pipe (3) are respectively provided with through holes. The outer ends of the inlet pipe (2) and the outlet pipe (3) are each equipped with a temperature monitoring component (4). The temperature monitoring component (4) includes a mounting clamp (41) sleeved on the outside of the water inlet pipe (2) and the water outlet pipe (3). A monitoring box (42) is sleeved on the upper end of the mounting clamp (41). A shape memory alloy sheet (43) is installed at the bottom of the monitoring box (42). A push rod (44) is fixedly connected to the side end of the shape memory alloy sheet (43). An infrared monitor (45) is installed on the top of the monitoring box (42). A power supply (47) is installed on the left corner of the monitoring box (42). A pressure-sensitive switch (46) with the same horizontal plane as the push rod (44) is installed on the side wall of the monitoring box (42). The infrared monitor (45) is located on the upper side of the push rod (44). An alarm (48) is installed on the outer end of the monitoring box (42).
2. The dry coil cooler according to claim 1, characterized in that: The mounting fixture (41) includes an elastic roll (411), the upper end of which is fixedly connected to a positioning platform (412), and the upper end of the positioning platform (412) is provided with a heat-conducting plate (413). The heat-conducting plate (413) extends through to one side of the inner wall of the elastic roll (411), and the bottom end of the heat-conducting plate (413) is fixedly connected to a heat-conducting rod. The heat-conducting rod extends through a through hole between the inner walls of the water inlet pipe (2) and the water outlet pipe (3).
3. A dry coil cooler according to claim 1, characterized in that: The bottom of the monitoring box (42) is provided with a positioning hole (421) that matches the mounting clamp (41). The upper end of the positioning hole (421) is provided with a storage groove (422) that matches the shape memory alloy sheet (43). The upper end of the storage groove (422) is provided with a sliding groove (423) that matches the push rod (44).
4. A dry coil cooler according to claim 1, characterized in that: The shape memory alloy sheet (43) installed on the outside of the water inlet pipe (2) has a phase change temperature of 10°C and a limiting phase change temperature of 15°C. The shape memory alloy sheet (43) installed on the outside of the water outlet pipe (3) has a phase change temperature of 15°C and a limiting phase change temperature of 20°C.
5. A dry coil cooler according to claim 1, characterized in that: An installation block (49) is installed on the outer end of the monitoring box (42).