A chiller system
By introducing test racks, temperature measurement boards, pressure sensing layers, and pipeline detection systems in the cold water unit system, the problem of leakage caused by vibration or humid environment during the work of cold water crews realized real -time monitoring and early warning at the pipeline connection connection. Essence
Patent Information
- Application Number
- CN202411613910.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2044-11-13
AI Technical Summary
Existing chillers are prone to leakage at the pipe connection due to vibration during operation, and it is difficult to accurately judge the leakage in humid environments.
A cold water unit system is designed, including test racks, temperature measuring boards, pressure sensing layers and pipeline detection systems. The temperature measurement board on the test rack is used to detect the temperature and rate of liquid dripping at the connection between the pipeline. The pressure sensor layer is used to detect the pressure changes of the pipeline. The pipe detection system analyzes the data to determine whether the pipeline leaks and an early warning.
By monitoring the temperature and pressure changes at the connection between the pipeline, the leakage is accurately identified and warned in time to avoid risk of pipeline breaks caused by vibration or humid environment.
Smart Images

Figure CN119123736B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of air conditioning, and in particular to a chiller system. Background Art
[0002] A chiller is a water cooling device that can provide cooling water at a constant temperature, constant flow and constant pressure. The working principle of a chiller is to first inject a certain amount of water into the water tank inside the machine, cool the water through the chiller refrigeration system, and then use a water pump to send the low-temperature cooling water to the equipment to be cooled. The chiller's frozen water takes away the heat and then rises in temperature before flowing back to the water tank to achieve the cooling effect.
[0003] Its working principle is that the refrigerant (i.e., refrigerant) absorbs the heat of the object being cooled in the evaporator and vaporizes into steam. The compressor continuously extracts the generated steam from the evaporator and compresses it. The compressed high-temperature, high-pressure steam is sent to the condenser and releases heat to the cooling medium (such as water, air, etc.) to condense into a high-pressure liquid. After the pressure is reduced by the throttling mechanism, it enters the evaporator, vaporizes again, and absorbs the heat of the object being cooled. This cycle repeats over and over again. When heating, the refrigerant changes the flow direction of the refrigerant through the four-way valve. The flow direction of the refrigerant is exactly opposite to that of cooling. The refrigerant first passes through the evaporator, then returns to the condenser, and finally returns to the compressor.
[0004] Except for the large-sized chillers required for large equipment, for the convenience of transportation and considering energy consumption, most of the chillers used in life and factories are small-sized, that is, the components are compactly designed. Existing chillers are generally assembled and fixed according to the equipment required for cooling water, and then pipes are installed to connect the components of the chiller and the equipment to be cooled. The frame structure is fixed on site by steel parts, which has great restrictions on some components that vibrate during work, thereby increasing the burden on the connecting pipes. If a local leak occurs, it is sometimes affected by humid weather and cannot be accurately judged. Summary of the invention
[0005] The object of the present invention is to provide a chiller system to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a chiller system, comprising a chiller, a main support frame, an adjustable support frame, two groups of test frames and a pipeline detection system, wherein the chiller is arranged in the main support frame and the inlet pipe and the outlet pipe are arranged on the same side, the adjustable support frame is arranged on the main support frame on the same side as the inlet pipe and the outlet pipe, the test frame is fixed on the adjustable support frame and corresponds to the inlet pipe and the outlet pipe, and the pipeline detection system is signal-connected to the adjustable support frame and the two groups of test frames;
[0007] Furthermore, the test stand includes a main support block, a plurality of buffer springs and a temperature measuring plate, wherein the two ends of the buffer spring are fixedly connected to the main support block and the temperature measuring plate respectively, and the temperature measuring plate is provided with a temperature measuring groove and a guide groove connected thereto.
[0008] Furthermore, the temperature measuring plate is arranged at the joints between the inlet pipe, the outlet pipe and the connecting pipes of the equipment to be cooled. If a leak occurs at the joint, the internal cooling medium will first drip into the temperature measuring tank to measure the corresponding temperature, and then be guided to the outside by the guide groove; similarly, if the saturated water vapor in the hot air encounters a pipe with a lower temperature due to the external humid environment and condenses water, the pipeline detection system will analyze the data size and changes detected by the temperature measuring board to accurately identify whether a leak occurs at the pipeline joint.
[0009] Furthermore, an inner sliding block and a fixing screw are provided in the main support block, wherein the inner sliding block is slidably arranged inside the main support block and is fixed by the fixing screw; the inner sliding block is a concave structure as a whole, which reduces the weight to facilitate its own fixation while also leaving suitable space for fixing the main support block with the outside.
[0010] Furthermore, the sliding setting of the inner slider is to cooperate with the inlet pipe and outlet pipe with different height deviations. By adjusting the position of the inner slider, the distance between the upper temperature measuring plate and the corresponding inlet pipe and outlet pipe is within a suitable range, which neither squeezes the inlet pipe and outlet pipe nor is too far away from the inlet pipe and outlet pipe.
[0011] Furthermore, a pressure sensing layer is provided on the inner sliding block for detecting the magnitude and change of the pressure transmitted by the buffer spring.
[0012] Furthermore, the adjustment support frame includes two groups of screw assemblies, a fixed frame and a liquid level sensing module, wherein both ends of the fixed frame are connected to the corresponding movable sides of the screw assemblies, the fixed frame is a groove-type structure and a liquid level sensing module is arranged on the inside, and the liquid level sensing module is used to measure whether liquid is accumulated inside the fixed frame.
[0013] Furthermore, the fixing frame is provided with a plurality of positioning holes, and the main support block will match the appropriate positioning holes when being fixed, and will be fixed by positioning pins matched with the positioning holes.
[0014] Furthermore, the main support block is slidably mounted on the fixing frame before being fixed, and the liquid on the temperature measuring plate will flow into the inside of the fixing frame under the guidance of the guide groove.
[0015] Furthermore, the screw assembly includes a motor, a screw guide rail and a movable block, wherein the motor is arranged in cooperation with the screw guide rail, the movable block is arranged on the screw guide rail and moves up and down under the control of the motor, and the fixed frame is connected to the movable block and moves with the movable block.
[0016] Furthermore, the main support frame is a rectangular frame structure as a whole and has shock-absorbing feet at the bottom.
[0017] Furthermore, the pipeline detection system includes a data detection module, a data analysis module and a processing module, wherein the data detection module includes a temperature detection unit and a pressure detection unit, the data analysis module includes a pipeline leakage analysis unit and a component vibration analysis unit, and the processing module includes an early warning unit.
[0018] Furthermore, the temperature detection unit is suitable for detecting and recording the temperature and coverage of the dripping liquid on the temperature measuring plate, the pressure detection unit is suitable for detecting and recording the pressure size and change amplitude of the pressure sensing layer, the pipeline leakage analysis unit is suitable for judging whether a leakage occurs at the pipeline connection and the leakage status according to the data fed back by the temperature detection unit, the component vibration analysis unit is suitable for judging whether the pipeline has a risk of displacement and fracture according to the data fed back by the pressure detection unit, and the early warning unit is suitable for timely warning according to the analysis results of the data analysis module.
[0019] Further, the usage is as follows:
[0020] S1. After the staff moves the entire device to the side of the equipment to be cooled, they connect the inlet pipe, outlet pipe and the equipment to be cooled;
[0021] S2. The screw assembly drives the fixed frame to move below the inlet pipe and the outlet pipe, leaving a height distance for the test frame to be placed based on the high side;
[0022] S3. The staff adjusts the position of the inner slide block in the main support block according to the distance between the inlet pipe, the outlet pipe and the fixed frame, and fixes it with a fixing screw;
[0023] S4. Place the adjusted main support block on the fixed frame, slide it under the inlet pipe and the outlet pipe respectively, and fix it with the positioning pins;
[0024] S5. The pipeline detection system monitors the data fed back by the temperature measuring tank and the pressure sensing layer in real time to analyze the pipeline connection status. The real-time monitoring of the pipeline detection system includes the following three steps:
[0025] S51, after the temperature detection unit detects an obvious low temperature signal, it starts to record the detection temperature and the growth rate of the detection temperature coverage, and feeds the information back to the pipeline leakage analysis unit, which analyzes whether the pipeline leaks and, if so, what the leakage situation is;
[0026] S52, the pressure detection unit uses the initial pressure signal as a reference, and if a significant pressure change signal is detected, it is recorded and fed back to the component vibration analysis unit, and the component vibration analysis unit analyzes whether the pipeline vibration amplitude is within the allowable range;
[0027] S53. The early warning unit issues an early warning in a timely manner according to the analysis results of the data analysis module.
[0028] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: by providing a test frame, the temperature measuring plate therein will detect and record the liquid dripping temperature and rate at the connection between the inlet pipe and the outlet pipe and feed them back to the pipeline detection system, so as to analyze whether there is leakage in the pipeline and the leakage amplitude and make corresponding treatment; by providing a pressure sensing layer, it can be judged whether the amplitude of the pipeline component working vibration is within the allowable range and the pipeline breakage can be avoided in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0031] Figure 2 It is a partial schematic diagram of the present invention;
[0032] Figure 3 is a partial cross-sectional view of the present invention;
[0033] Figure 4 is a schematic diagram of a test stand of the present invention;
[0034] In the figure: 1. Chiller; 11. Inlet pipe; 12. Outlet pipe; 2. Main support frame; 21. Shock-absorbing pads; 3. Adjustment support frame; 31. Screw assembly; 311. Motor; 312. Screw guide rail; 313. Movable block; 32. Fixed frame; 321. Positioning hole; 322. Positioning pin; 4. Test frame; 41. Main support block; 411. Inner slider; 4111. Pressure sensing layer; 412. Fixed screw; 42. Buffer spring; 43. Temperature measuring plate; 431. Temperature measuring trough; 432. Guide trough. DETAILED DESCRIPTION
[0035] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. 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.
[0036] See also Figure 1-4 The present invention provides a technical solution: a chiller system, comprising a chiller 1, a main support frame 2, an adjustment support frame 3, two groups of test frames 4 and a pipeline detection system, wherein the chiller 1 is arranged in the main support frame 2 and the inlet pipe 11 and the outlet pipe 12 are arranged on the same side, the adjustment support frame 3 is arranged on the main support frame 2 on the same side as the inlet pipe 11 and the outlet pipe 12, the test frame 4 is fixed on the adjustment support frame 3 and corresponds to the inlet pipe 11 and the outlet pipe 12, and the pipeline detection system is signal-connected with the adjustment support frame 3 and the two groups of test frames 4;
[0037] The test stand 4 includes a main support block 41, a plurality of buffer springs 42 and a temperature measuring plate 43, wherein the two ends of the buffer spring 42 are fixedly connected to the main support block 41 and the temperature measuring plate 43 respectively, and the temperature measuring plate 43 is provided with a temperature measuring groove 431 and a guide groove 432 connected thereto.
[0038] In actual operation, the temperature measuring plate 43 is arranged at the joints between the inlet pipe 11, the outlet pipe 12 and the connecting pipes of the equipment to be cooled. If there is a leak at the joint, the internal cooling medium will first drip into the temperature measuring tank 431 to measure the corresponding temperature, and then be guided to the outside by the guide groove 432; similarly, if the saturated water vapor in the hot air encounters a pipe with a lower temperature due to the humid external environment and produces condensed water, the pipeline detection system will analyze the data size and changes detected by the temperature measuring plate 43 to accurately identify whether there is a leak at the pipeline joint.
[0039] An inner slider 411 and a fixing screw 412 are provided inside the main support block 41, wherein the inner slider 411 is slidably arranged inside the main support block 41 and is fixed by the fixing screw 412; the inner slider 411 is a concave structure as a whole, which reduces the weight to facilitate its own fixation while also leaving a suitable space for fixing the main support block 41 with the outside.
[0040] In actual operation, the sliding setting of the inner slider 411 is to cooperate with the inlet pipe 11 and the outlet pipe 12 with different heights. By adjusting the position of the inner slider 411, the distance between the upper temperature measuring plate 43 and the corresponding inlet pipe 11 and the outlet pipe 12 is within a suitable range, which neither squeezes the inlet pipe 11 and the outlet pipe 12 nor is it too far away from the inlet pipe 11 and the outlet pipe 12.
[0041] A pressure sensing layer 4111 is disposed on the inner slider 411 for detecting the magnitude and change of the pressure transmitted by the buffer spring 42 .
[0042] The adjustment support frame 3 includes two groups of screw rod assemblies 31, a fixed frame 32 and a liquid level sensing module, wherein both ends of the fixed frame 32 are connected to the corresponding movable sides of the screw rod assemblies 31, the fixed frame 32 is a groove-type structure and a liquid level sensing module is arranged inside, and the liquid level sensing module is used to measure whether there is liquid accumulation inside the fixed frame 32.
[0043] The fixing frame 32 is provided with a plurality of positioning holes 321 . When being fixed, the main support block 41 will match the appropriate positioning holes 321 and be fixed by positioning pins 322 matched with the positioning holes 321 .
[0044] It should be additionally explained that: before the main support block 41 is fixed, it is slidably mounted on the fixing frame 32 , and the liquid on the temperature measuring plate 43 will flow into the inside of the fixing frame 32 under the guidance of the guide groove 432 .
[0045] The screw assembly 31 includes a motor 311, a screw guide rail 312 and a movable block 313, wherein the motor 311 is arranged in cooperation with the screw guide rail 312, and the movable block 313 is arranged on the screw guide rail 312 and moves up and down under the control of the motor 311. It should be supplemented that the fixed frame 32 is connected to the movable block 313 and moves with the movable block 313.
[0046] The main support frame 2 is a rectangular frame structure as a whole and a shock-absorbing foot 21 is provided at the bottom.
[0047] The pipeline detection system includes a data detection module, a data analysis module and a processing module, wherein the data detection module includes a temperature detection unit and a pressure detection unit, the data analysis module includes a pipeline leakage analysis unit and a component vibration analysis unit, and the processing module includes an early warning unit.
[0048] The temperature detection unit is suitable for detecting and recording the temperature and coverage of the dripping liquid on the temperature measuring plate 43, the pressure detection unit is suitable for detecting and recording the pressure size and change amplitude of the pressure sensing layer 4111, the pipeline leakage analysis unit is suitable for judging whether leakage occurs at the pipeline connection and the leakage status according to the data fed back by the temperature detection unit, the component vibration analysis unit is suitable for judging whether the pipeline has the risk of displacement and rupture according to the data fed back by the pressure detection unit, and the early warning unit is suitable for timely warning according to the analysis results of the data analysis module.
[0049] The specific implementation methods are as follows:
[0050] S1. After the staff moves the entire device to the side of the equipment to be cooled, they connect the inlet pipe 11 and the outlet pipe 12 to the equipment to be cooled;
[0051] S2, the screw assembly 31 drives the fixed frame 32 to move to below the inlet pipe 11 and the outlet pipe 12, leaving a height distance for the test frame 4 to be placed based on the high side;
[0052] Specifically, the longitudinal deviation distance of the inlet pipe 11 and the outlet pipe 12 is set within the range of the adjustment section of the test frame 4, the distance from the main support block 41 of the test frame 4 to the upper surface of the temperature measuring plate 43 is x, and an infrared distance measuring module is provided on the fixing frame 32. By default, only the inlet pipe 11 and the outlet pipe 12 of the chiller 1 extend to the upper side of the fixing frame 32, and the infrared distance measuring module detects three distance signals. , represents the distances from the fixing frame 32 to the inlet pipe 11, the outlet pipe 12 and the upper main support frame 2, respectively, where To be greater than ,when When all are less than 1.5x, the fixing frame 32 reaches the appropriate position.
[0053] S3, the staff adjusts the position of the inner slide 411 in the main support block 41 according to the distance between the inlet pipe 11, the outlet pipe 12 and the fixing frame 32, and fixes it by fixing the screw 412;
[0054] Specifically, the distance should be adjusted to ensure that the temperature measuring plate 43 does not squeeze the inlet pipe 11 and the outlet pipe 12;
[0055] S4, placing the adjusted main support block 41 on the fixing frame 32, sliding it to below the inlet pipe 11 and the outlet pipe 12 respectively, and fixing it with the positioning pin 322;
[0056] S5. The pipeline detection system monitors the data fed back by the temperature measuring tank 431 and the pressure sensing layer 4111 in real time to analyze the pipeline connection status. The pipeline detection system real-time monitoring includes the following three steps:
[0057] S51, after the temperature detection unit detects an obvious low temperature signal, it starts to record the detection temperature and the growth rate of the detection temperature coverage, and feeds the information back to the pipeline leakage analysis unit, which analyzes whether the pipeline leaks and, if so, what the leakage situation is;
[0058] S52, the pressure detection unit uses the initial pressure signal as a reference, and if a significant pressure change signal is detected, it is recorded and fed back to the component vibration analysis unit, and the component vibration analysis unit analyzes whether the pipeline vibration amplitude is within the allowable range;
[0059] Specifically, the initial pressure signal is set to , the detection pressure is , extrusion pressure = - , ultimate pressure The pressure limit that the pipeline can withstand. If the pressure exceeds this limit, the pipeline will break. Always at 3 If the vibration is within the range, it is an allowable vibration state. Greater than or equal to 0.8 , then it is judged that there is a risk of pipeline rupture, and the equipment needs to be stopped and repaired; if In 3 to 0.8 In between, you need to pay attention to the pipeline status and check it;
[0060] S53. The early warning unit issues an early warning in a timely manner according to the analysis results of the data analysis module.
[0061] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0062] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A chiller system, characterized in that: include: A chiller (1), a main support frame (2), an adjustable support frame (3), two groups of test frames (4), and a pipeline detection system, wherein the chiller (1) is arranged in the main support frame (2) and the inlet pipe (11) and the outlet pipe (12) are arranged on the same side, the adjustable support frame (3) is arranged on the main support frame (2) on the same side as the inlet pipe (11) and the outlet pipe (12), the test frame (4) is fixed on the adjustable support frame (3) and corresponds to the inlet pipe (11) and the outlet pipe (12), and the pipeline detection system is signal-connected to the adjustable support frame (3) and the two groups of test frames (4); The test stand (4) comprises a main support block (41), a plurality of buffer springs (42) and a temperature measuring plate (43), wherein two ends of the buffer spring (42) are respectively fixedly connected to the main support block (41) and the temperature measuring plate (43), and the temperature measuring plate (43) is provided with a temperature measuring groove (431) and a guide groove (432) connected thereto; An inner sliding block (411) and a fixing screw (412) are provided inside the main supporting block (41), wherein the inner sliding block (411) is slidably arranged inside the main supporting block (41) and is fixed by the fixing screw (412); The inner sliding block (411) is provided with a pressure sensing layer (4111) for detecting the magnitude and change of the pressure transmitted by the buffer spring (42); The adjustment support frame (3) comprises two sets of screw rod assemblies (31), a fixed frame (32) and a liquid level sensing module, wherein both ends of the fixed frame (32) are connected to the movable sides of the corresponding screw rod assemblies (31), the fixed frame (32) is a groove-shaped structure and a liquid level sensing module is arranged inside, and the liquid level sensing module is used to measure whether liquid is accumulated inside the fixed frame (32); The specific method of using the chiller system is as follows: S1. After the staff moves the entire device to the side of the equipment to be cooled, they connect the inlet pipe (11) and the outlet pipe (12) to the equipment to be cooled; S2, the screw assembly (31) drives the fixed frame (32) to move to below the inlet pipe (11) and the outlet pipe (12), leaving a height distance for placing the test frame (4) based on the higher side; S3. The staff adjusts the position of the inner slide block (411) in the main support block (41) according to the distance between the inlet pipe (11), the outlet pipe (12) and the fixing frame (32), and fixes the inner slide block (411) by means of a fixing screw (412); Specifically, the distance should be adjusted to ensure that the temperature measuring plate (43) does not squeeze the inlet pipe (11) and the outlet pipe (12); S4, placing the adjusted main support block (41) on the fixing frame (32), sliding it to below the inlet pipe (11) and the outlet pipe (12), respectively, and fixing it with the positioning pins (322); S5. The pipeline detection system monitors the data fed back by the temperature measuring tank (431) and the pressure sensing layer (4111) in real time to analyze the pipeline connection status. The pipeline detection system real-time monitoring includes the following three steps: S51, after the temperature detection unit detects an obvious low temperature signal, it starts to record the detection temperature and the growth rate of the detection temperature coverage, and feeds the information back to the pipeline leakage analysis unit, which analyzes whether the pipeline leaks and, if so, what the leakage situation is; S52, the pressure detection unit uses the initial pressure signal as a reference, and if a significant pressure change signal is detected, it is recorded and fed back to the component vibration analysis unit, and the component vibration analysis unit analyzes whether the pipeline vibration amplitude is within the allowable range; S53. The early warning unit issues an early warning in a timely manner according to the analysis results of the data analysis module.
2. A chiller system according to claim 1, characterized in that: The inner sliding block (411) is of a concave structure as a whole, which reduces the mass to facilitate its own fixation and also leaves a suitable space for the fixation of the main support block (41) and the outside.
3. A chiller system according to claim 2, characterized in that: The fixing frame (32) is provided with a plurality of positioning holes (321), and the main support block (41) will match a suitable positioning hole (321) when being fixed, and is fixed by means of positioning pins (322) that match the positioning holes (321).
4. A chiller system according to claim 3, characterized in that: The screw assembly (31) comprises a motor (311), a screw guide rail (312) and a movable block (313), wherein the motor (311) is arranged in cooperation with the screw guide rail (312), the movable block (313) is arranged on the screw guide rail (312) and moves up and down under the control of the motor (311), and the fixed frame (32) is connected to the movable block (313) and moves with the movable block (313).
5. A chiller system according to claim 4, characterized in that: The pipeline detection system includes a data detection module, a data analysis module and a processing module, wherein the data detection module includes a temperature detection unit and a pressure detection unit, the data analysis module includes a pipeline leakage analysis unit and a component vibration analysis unit, and the processing module includes an early warning unit; The temperature detection unit is suitable for detecting and recording the temperature and coverage of the dripping liquid on the temperature measuring plate (43); the pressure detection unit is suitable for detecting and recording the pressure magnitude and variation range of the pressure sensing layer (4111); the pipeline leakage analysis unit is suitable for judging whether a leakage occurs at the pipeline connection and the leakage status based on the data fed back by the temperature detection unit; the component vibration analysis unit is suitable for judging whether the pipeline has a risk of displacement and rupture based on the data fed back by the pressure detection unit; and the early warning unit is suitable for timely warning based on the analysis results of the data analysis module.
Citation Information
Patent Citations
Water chilling unit convenient to install and used for polyethylene recoated film roll production
CN211683413U
Constant-temperature and constant-pressure water chilling unit
CN214148457U