CN219776485U - Dry cooler with temperature monitoring alarm system - Google Patents
Dry cooler with temperature monitoring alarm system Download PDFInfo
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- CN219776485U CN219776485U CN202223332662.8U CN202223332662U CN219776485U CN 219776485 U CN219776485 U CN 219776485U CN 202223332662 U CN202223332662 U CN 202223332662U CN 219776485 U CN219776485 U CN 219776485U
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- alarm system
- dry cooler
- temperature
- plc
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract description 15
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of heat exchanger equipment, in particular to a dry cooler with a temperature monitoring alarm system, which comprises a monitoring system, a control system and an alarm system, wherein the monitoring system comprises a plurality of water flow switches, a temperature sensor, a current transformer, an alternating current contactor and a thermal relay; the control system comprises a PLC controller, a remote communication module and a remote control terminal. Compared with the prior art, the dry cooler can monitor the circuit condition of the fan and the temperature difference before and after cooling liquid heat dissipation, and can automatically cut off power and automatically alarm through the control system when faults occur, so that operators are reminded of timely processing various obstacles, the damage of the dry cooler caused by overload of the circuit and overhigh or overlow cooling liquid temperature is avoided, meanwhile, remote control and fault signal display can be carried out, and the operation of the operators is more convenient.
Description
Technical Field
The utility model relates to the technical field of heat exchanger equipment, in particular to a dry cooler with a temperature monitoring alarm system.
Background
The DRY COOLER (DRY COOLER), i.e. the DRY COOLER, has no water consumption in the working process, and the liquid in the pipe is cooled by the liquid in the pipe and natural wind outside the pipe, so that the temperature of the liquid in the pipe is reduced, and the purpose of cooling is achieved. The dry cooler is often used as a part of an air conditioner of an energy-saving machine room, and is often used as an energy-saving component because energy is not consumed in the working process. The fluid in the dry cooler is cooling water, and ethylene glycol solution is commonly used in engineering. The glycol solution is subjected to heat exchange with outdoor cold air through a dry cooler, natural cooling is carried out to obtain cooling capacity, then the low-temperature glycol solution is sent into a surface cooler of an air conditioner by a circulating pump to cool indoor return air, and finally the treated air is sent into the room by a blower.
The current dry cooler blows out the heat in the cooling liquid through a fan, so that the cooling of the cooling liquid is realized, and an utility model patent with the application number of CN202120783121.3 discloses an outdoor water-cooling dry cooler which can control the operation of a three-way switching valve to adjust the switching of water circulation and has the effect of saving energy. Considering that the cooler is easy to damage when the temperature of the cooling liquid is too high or the operation of the fan is overloaded sometimes, if an operator cannot find and solve the fault in time when the fault occurs, the safety problem is easy to occur, and the risk is high. Therefore, in order to improve the safety of the dry cooler, the patent proposes a dry cooler with a temperature monitoring alarm system.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a dry cooler with a temperature monitoring alarm system, which solves the problem that the existing dry cooler is not good enough in safety.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a dry cooler with a temperature monitoring alarm system comprises a monitoring system, a control system and an alarm system:
the monitoring system comprises a plurality of water flow switches, a temperature sensor, a current transformer, an alternating current contactor and a thermal relay;
the control system comprises a PLC controller, a remote communication module and a remote control terminal;
the output end of the temperature sensor is connected with the output end of the current transformer, the input end of the alarm system is connected with the output end of the PLC, the PLC is connected with the remote control terminal through the remote communication module, and the output end of the water flow switch is connected with the input end of the PLC through the timer.
Preferably, the system also comprises a plurality of units.
Preferably, the unit comprises a machine body, a fan, a water stop plate, a water inlet main pipe, a water outlet main pipe and a control box.
Preferably, the fan comprises a bracket fixedly connected to the upper end of the machine body, a fan fixedly connected to the bracket, a protective net fixedly connected to the upper end of the bracket and a coil pipe fixedly connected to the protective net, the input end of the fan is connected with the output end of the PLC, and two ends of the coil pipe are respectively connected with the water inlet main pipe and the water outlet main pipe in a penetrating way.
Preferably, the temperature sensor is respectively and fixedly connected in the water inlet main pipe and the water outlet main pipe, the water flow switch is fixedly connected to the inlet end of the water inlet main pipe, the PLC controller is fixedly connected in the control box, and the input end of the water flow switch is connected with the output end of the PLC controller.
Preferably, a waterproof emergency stop switch is arranged on the control box, and the output end of the waterproof emergency stop switch is connected with the input end of the PLC.
Preferably, a control panel with a start button, a stop button and a settable water outlet temperature value and a current protection value is arranged on the control box, the output end of the control panel is connected with the input end of the PLC, and the alarm system is arranged on the control panel.
Compared with the prior art, the utility model provides the dry cooler with the temperature monitoring alarm system, which has the following beneficial effects:
this dry cooler with temperature monitoring alarm system through setting up alarm system and monitored control system for this dry cooler for prior art is for the difference in temperature around the circuit condition of fan and the coolant liquid heat dissipation, and can break down through control system is automatic, and automatic alarm in the appearance, so that remind operating personnel in time to handle various obstacles, avoid this dry cooler because of meeting circuit overload, coolant liquid temperature and damage when too high or too low, greatly improved the security of this dry cooler, can also carry out remote control and demonstrate fault signal simultaneously, it is more convenient when letting operating personnel use.
Drawings
FIG. 1 is a front view of a dry cooler construction with a temperature monitoring alarm system;
FIG. 2 is a flow chart of the present dry cooler with a temperature monitoring alarm system;
FIG. 3 is a right side view of the present dry cooler with temperature monitoring alarm system;
FIG. 4 is a left side view of the present dry cooler configuration with a temperature monitoring alarm system;
FIG. 5 is a front view of the blower in the present dry cooler with temperature monitoring alarm system.
In the figure: 1. a monitoring system; 2. a control system; 3. an alarm system; 4. a water flow switch; 5. a temperature sensor; 6. a current transformer; 7. an alternating current contactor; 8. a thermal relay; 9. a PLC controller; 10. a remote communication module; 11. a remote control terminal; 12. a unit; 13. a blower; 14. a water-stop plate; 15. a water inlet main pipe; 16. a water outlet main pipe; 17. a control box; 18. a bracket; 19. a fan; 20. a protective net; 21. a coiled pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a dry-type cooler with temperature monitoring alarm system, including monitored control system 1, control system 2 and alarm system 3, wherein, alarm system 3 and monitored control system 1's setting makes this dry-type cooler for current technique is to the temperature difference around the circuit condition of fan 13 and the coolant liquid heat dissipation, and can be in break down through control system 2 is automatic, and automatic alarm, so that remind the operating personnel in time handle various obstacles, avoid this dry-type cooler because of meeting circuit overload, coolant liquid temperature too high or too low time damage, the security of this dry-type cooler has greatly been improved, remote control and show fault signal can also be carried out simultaneously, it is more convenient when letting operating personnel use. The monitoring system 1 comprises a plurality of water flow switches 4, a temperature sensor 5, a current transformer 6, an alternating current contactor 7 and a thermal relay 8, wherein the thermal relay 8 can automatically open a normally closed contact when the circuit temperature of the fan 13 is too high so as to open an electromagnetic coil in the alternating current contactor 7, thereby cutting off the power supply of the fan 13 and protecting the fan 13. The control system 2 comprises a PLC controller 9, a remote communication module 10 and a remote control terminal 11, which may be a tablet, a computer or a hand-held PDA, for synchronously displaying fault signals of the alarm system 3 or transmitting control instructions into the control system 2.
As shown in fig. 2, the output end of the temperature sensor 5 and the output end of the current transformer 6 are connected with the input end of the PLC controller 9, the input end of the alarm system 3 and the input end of the water flow switch 4 are connected with the output end of the PLC controller 9, when the temperature sensor 5 detects that the temperature value of the water inlet manifold 15 and the water outlet manifold 16 is higher than a certain value (85 ℃) the alarm system 3 is triggered, when the temperature of the environment is too low, the temperature sensor 5 detects that the water outlet temperature value is less than the continuous cooling temperature and less than 5 ℃, and a signal with too low temperature is output to trigger the alarm. The PLC controller 9 is connected with the remote control terminal 11 through the remote communication module 10, and the output of the water flow switch 4 is connected with the input of the PLC controller 9 through the timer, triggers no water flow fault alarm when the water flow switch 4 does not output a water flow signal for 3min in operation, reminds an operator to check whether the pipeline is blocked or not, and the like.
As shown in fig. 1, 3 and 4, the dry cooler with the temperature monitoring alarm system further comprises a plurality of units 12, the units 12 are assembled through water stop plates 14, after the assembly, water outlet manifolds 16 are communicated, and water inlet manifolds 15 are communicated, so that the dry cooler can be applied to scenes with different heat dissipation requirements. The unit 12 comprises a machine body, a fan 13, a water stop plate 14, a water inlet main pipe 15, a water outlet main pipe 16 and a control box 17, wherein the fan 13 discharges heat of cooling liquid during operation, so that cooling of the cooling liquid is realized.
As shown in fig. 2 and 5, the fan 13 includes a bracket 18 fixedly connected to the upper end of the machine body, a fan 19 fixedly connected to the bracket 18, a protection net 20 fixedly connected to the upper end of the bracket 18, and a coil 21 fixedly connected to the protection net 20, wherein two ends of the coil 21 are respectively connected with the water inlet manifold 15 and the water outlet manifold 16 in a penetrating manner, and the coil 21 can increase the heat dissipation area of the cooling liquid and improve the heat dissipation speed. The input of the fan 19 is connected to the output of the PLC controller 9, thereby enabling the PLC controller 9 to control the operation of the fan 13.
As shown in fig. 2 and 3, the temperature sensor 5 is fixedly connected to the water inlet manifold 15 and the water outlet manifold 16, respectively, for detecting the temperature difference between the cooling liquid before and after cooling. The water flow switch 4 is fixedly connected to the inlet end of the water inlet header pipe 15 and is used for controlling the entry of the cooling liquid and detecting the flow rate of the cooling liquid. The PLC controller 9 is fixedly connected in the control box 17, and the input end of the water flow switch 4 is connected with the output end of the PLC controller 9, so that the PLC controller 9 can control the running state of the water flow switch 4.
As shown in fig. 2 and 3, a waterproof emergency stop switch is arranged on the control box 17 and used for emergently stopping the operation of the dry cooler, and the output end of the waterproof emergency stop switch is connected with the input end of the PLC controller 9.
As shown in fig. 2 and 3, a control panel with a start button, a stop button and a settable water outlet temperature value and a current protection value is arranged on the control box 17, the output end of the control panel is connected with the input end of the PLC controller 9, the start button and the stop button on the control panel control the operation of the dry cooler, and enable the temperature value to be set for the temperature sensor 5 installed in the water outlet manifold 16, and the operation power and the coolant flow of the fan 13 are controlled through the PID calculation logic, so that the scene temperature is kept within a preset range. The alarm system 3 is arranged on the control panel so that an operator can intuitively know whether the operation of the dry cooler has faults or not.
The working principle and the using flow of the utility model are as follows: the operation of the dry cooler is controlled by a control panel or a remote control terminal 11, the cooling liquid flows into the coil pipe 21 through the water inlet main pipe 15, and the heat in the coil pipe 21 is blown out by the operated fan 19, so that the cooling and the cooling of the cooling liquid are realized. When the temperature sensors 5 in the water inlet main pipe 15 and the water outlet main pipe 16 detect that the temperature is higher than a preset value (85 ℃), signals are transmitted to the PLC 9, so that the alarm system 3 and the remote control terminal 11 are triggered to alarm; when the environmental temperature is too low, triggering an alarm when the temperature value detected by the temperature sensor 5 in the water outlet main pipe 16 is lower than the temperature value for continuously cooling (the temperature difference between the water inlet main pipe 15 and the water outlet main pipe 16) is lower than 5 ℃; triggering an alarm when the water flow switch 4 does not output a water flow signal for 3min during operation; when the current transformer 6 detects that the current value of the circuit of the fan 19 is higher than a preset value, an alarm is triggered through the PLC 9, and meanwhile, the normally closed contact of the thermal relay 8 is opened, so that the electromagnetic coil in the alternating current contactor 7 is opened, and the circuit of the fan 19 is cut off. Compared with the prior art, the dry cooler can monitor the circuit condition of the fan 13 and the temperature difference before and after cooling the cooling liquid, and can automatically cut off power and automatically alarm when faults occur through the control system 2, so that operators are reminded of timely handling various obstacles, the damage of the dry cooler caused by overload of the circuit and overhigh or overlow temperature of the cooling liquid is avoided, the safety of the dry cooler is greatly improved, meanwhile, remote control and fault signal display can be carried out, and the operation is more convenient when the operators use.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The dry cooler with the temperature monitoring alarm system is characterized by comprising a monitoring system, a control system and an alarm system:
the monitoring system comprises a plurality of water flow switches, a temperature sensor, a current transformer, an alternating current contactor and a thermal relay;
the control system comprises a PLC controller, a remote communication module and a remote control terminal;
the output end of the temperature sensor is connected with the output end of the current transformer, the input end of the alarm system is connected with the output end of the PLC, the PLC is connected with the remote control terminal through the remote communication module, and the output end of the water flow switch is connected with the input end of the PLC through the timer.
2. A dry cooler with temperature monitoring alarm system as set forth in claim 1 wherein: also comprises a plurality of units.
3. A dry cooler with temperature monitoring alarm system as set forth in claim 2 wherein: the unit comprises a machine body, a fan, a water stop plate, a water inlet main pipe, a water outlet main pipe and a control box.
4. A dry cooler with temperature monitoring alarm system according to claim 3, wherein: the fan comprises a support fixedly connected to the upper end of the machine body, a fan fixedly connected to the inside of the support, a protection net fixedly connected to the upper end of the support and a coil pipe fixedly connected to the protection net, the input end of the fan is connected with the output end of the PLC, and two ends of the coil pipe are respectively connected with the water inlet main pipe and the water outlet main pipe in a penetrating mode.
5. A dry cooler with temperature monitoring alarm system according to claim 3, wherein: the temperature sensor is respectively and fixedly connected in the water inlet main pipe and the water outlet main pipe, the water flow switch is fixedly connected to the inlet end of the water inlet main pipe, the PLC controller is fixedly connected in the control box, and the input end of the water flow switch is connected with the output end of the PLC controller.
6. A dry cooler with temperature monitoring alarm system according to claim 3, wherein: the control box is provided with a waterproof emergency stop switch, and the output end of the waterproof emergency stop switch is connected with the input end of the PLC.
7. A dry cooler with temperature monitoring alarm system according to any one of claims 3-6, characterized in that: the control box is provided with a control panel with a start button, a stop button and a settable water outlet temperature value and a current protection value, the output end of the control panel is connected with the input end of the PLC, and the alarm system is arranged on the control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332662.8U CN219776485U (en) | 2022-12-13 | 2022-12-13 | Dry cooler with temperature monitoring alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332662.8U CN219776485U (en) | 2022-12-13 | 2022-12-13 | Dry cooler with temperature monitoring alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219776485U true CN219776485U (en) | 2023-09-29 |
Family
ID=88109213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223332662.8U Active CN219776485U (en) | 2022-12-13 | 2022-12-13 | Dry cooler with temperature monitoring alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219776485U (en) |
-
2022
- 2022-12-13 CN CN202223332662.8U patent/CN219776485U/en active Active
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