CN212300077U - Cooling circulating water frequency conversion control system - Google Patents
Cooling circulating water frequency conversion control system Download PDFInfo
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- CN212300077U CN212300077U CN202020994732.8U CN202020994732U CN212300077U CN 212300077 U CN212300077 U CN 212300077U CN 202020994732 U CN202020994732 U CN 202020994732U CN 212300077 U CN212300077 U CN 212300077U
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Abstract
The utility model provides a refrigeration cycle water frequency conversion control system, including cooling tower, fan frequency conversion controller, wet return, temperature sensor, outlet pipe and two frequency conversion circulating water pumps. The temperature sensor detects the water temperature of the water return pipe, and the fan frequency conversion controller performs frequency conversion control on the fan, so that the energy consumption of the cooling tower can be reduced, the service life of the fan is prolonged, and the production cost is reduced; the variable-frequency circulating water pump can manually adjust the water quantity to match with actual water consumption, so that the production cost is reduced; two variable-frequency circulating water pumps, one is a working water pump and the other is a standby water pump, so that continuous production is facilitated; the outlet pipe still is connected with the wet return, and ambient temperature is lower winter, and when temperature sensor detected the wet return temperature and is less than temperature lower limit value, first solenoid valve was closed, and the second solenoid valve was opened, and the cooling circulation water of wet return directly goes out from the outlet pipe circulation, can reduce the cooling tower energy consumption, reduces water waste, reduction in production cost.
Description
Technical Field
The utility model relates to a cooling tower system field especially relates to a refrigeration cycle water frequency conversion control system.
Background
The cooling tower is a device which uses water as circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the heat-exchange type air conditioner utilizes the principle that water is in contact with air in a flowing mode to perform heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation heat dissipation, convection heat transfer, radiation heat transfer and the like, and waste heat generated in the industry or in a refrigeration air conditioner is dissipated to reduce the water temperature, so that the normal operation of the system is guaranteed. Present cooling tower does not match with actual water yield in the in-service use, can't adjust output's size, and the power of circulating water pump and fan can be greater than the power of actual demand, leads to the waste of electric power and water resource, leads to the life of circulating water pump and fan to shorten, is unfavorable for energy saving and emission reduction, has increased manufacturing cost.
Disclosure of Invention
The utility model aims at solving the shortcoming that exists among the prior art, and the refrigeration cycle water variable frequency control system who provides reduces the use energy consumption of cooling tower, practices thrift power consumption and water consumption, prolongs the life of circulating water pump and fan, reduction in production cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cooling circulating water frequency conversion control system comprises a cooling tower, a fan frequency conversion controller, a water return pipe, a temperature sensor, a water outlet pipe and two frequency conversion circulating water pumps, wherein the fan is arranged inside the cooling tower, and the fan frequency conversion controller is arranged outside the cooling tower and is electrically connected with the fan; the water return pipe is connected with a water inlet of the cooling tower, and the temperature sensor is arranged in the water return pipe and is electrically connected with the fan variable frequency controller; the water outlet pipe is connected with the water outlet of the cooling tower, and the two variable-frequency circulating water pumps are arranged on the water outlet pipe in parallel.
Preferably, the water outlet pipe is further connected with the water return pipe, and a connection point is located on the water return pipe between the temperature sensor and the water inlet of the cooling tower.
Preferably, a first electromagnetic valve is arranged on the water return pipe between the connection point and the water inlet, a second electromagnetic valve is arranged on the water outlet pipe between the connection point and the water outlet of the cooling tower, and the first electromagnetic valve, the second electromagnetic valve and the temperature sensor are electrically connected.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model utilizes the temperature sensor to detect the water temperature of the return water pipe, utilizes the fan frequency conversion controller to carry out frequency conversion control on the fan according to the change of the water temperature of the return water pipe, can reduce the energy consumption of the cooling tower, saves the electricity consumption, prolongs the service life of the fan and reduces the production cost;
2. the variable-frequency circulating water pump can manually adjust the water quantity to match with actual water, so that the water quantity can be saved, the service life of the variable-frequency circulating water pump is prolonged, and the production cost is reduced;
3. two variable-frequency circulating water pumps are arranged on the water outlet pipe in parallel, one is a working water pump, the other is a standby water pump, and when the working water pump fails, the standby water pump can be used, so that the continuous production is facilitated;
4. the outlet pipe still is connected with the wet return, and when ambient temperature was lower winter, when temperature sensor detected the wet return temperature and was less than the temperature lower limit value, first solenoid valve was closed, and the second solenoid valve was opened, and the cooling circulation water of wet return directly goes out from the outlet pipe circulation, need not through the cooling tower, not only can reduce the cooling tower energy consumption, can also reduce the water resource waste that water evaporation, spatter and spill etc. and cause, reduction in production cost.
Drawings
Fig. 1 is a schematic structural diagram of a cooling circulating water frequency conversion control system according to embodiment 1 of the present invention;
fig. 2 is the utility model discloses embodiment 2's a cooling circulation water frequency conversion control system's schematic structure diagram.
In the figure, 10-cooling tower, 11-water inlet, 12-water outlet, 20-fan, 30-fan variable frequency controller, 40-water return pipe, 50-temperature sensor, 60-water outlet pipe, 70-variable frequency circulating water pump, 80-first electromagnetic valve, 90-second electromagnetic valve, A-connection point.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the cooling circulation water frequency conversion control system according to embodiment 1 of the present invention includes a cooling tower 10, a fan 20, a fan frequency conversion controller 30, a water return pipe 40, a temperature sensor 50, a water outlet pipe 60, and two frequency conversion circulation water pumps 70, wherein the fan 20 is disposed inside the cooling tower 10, and the fan frequency conversion controller 30 is disposed outside the cooling tower 10 and electrically connected to the fan 20; the water return pipe 40 is connected with the water inlet 11 of the cooling tower 10, and the temperature sensor 50 is arranged in the water return pipe 40 and is electrically connected with the fan variable frequency controller 30; the water outlet pipe 60 is connected with the water outlet 12 of the cooling tower 10, and the two variable-frequency circulating water pumps 70 are arranged on the water outlet pipe 60 in parallel.
In the working process, the temperature sensor 50 detects the water temperature of the water return pipe 40 and transmits the water temperature to the fan variable-frequency controller 30, the fan variable-frequency controller 30 is preset with an upper temperature limit value and a lower temperature limit value, and when the water temperature of the water return pipe 40 is lower than the lower temperature limit value, the fan variable-frequency controller 30 controls the fan 20 to be closed; when the water temperature of the water return pipe 40 is higher than the upper temperature limit value, the fan frequency conversion controller 30 controls the fan 20 to be started and operates at a high frequency; when the water temperature of the water return pipe 40 is higher than the lower temperature limit value and lower than the upper temperature limit value, the fan frequency-variable controller 30 controls the operation frequency of the fan 20 to decrease/increase along with the decrease/increase of the temperature so as to meet the water demand. Therefore, the long-time high-frequency operation of the fan 20 can be avoided, the power consumption of the cooling tower 10 is reduced, the service life of the fan 20 is prolonged, and the production cost is saved. The variable-frequency circulating water pump 70 can manually adjust the water quantity to match with actual water consumption, so that the water consumption is saved, the service life of the water pump is prolonged, and the production cost is reduced; two frequency conversion circulating water pump 70 that the parallelly connected setting on outlet pipe 60, one is the work water pump, and one is reserve water pump, when the work water pump breaks down, can use reserve water pump earlier, takes the maintenance with the water pump that breaks down, and the production of being convenient for is continuously gone on.
Referring to fig. 2, the cooling circulation water frequency conversion control system according to embodiment 2 of the present invention includes a cooling tower 10, a fan 20, a fan frequency conversion controller 30, a water return pipe 40, a temperature sensor 50, a water outlet pipe 60, and two frequency conversion circulation water pumps 70, wherein the fan 20 is disposed inside the cooling tower 10, and the fan frequency conversion controller 30 is disposed outside the cooling tower 10 and electrically connected to the fan 20; the water return pipe 40 is connected with the water inlet 11 of the cooling tower 10, and the temperature sensor 50 is arranged in the water return pipe 40 and is electrically connected with the fan variable frequency controller 30; the water outlet pipe 60 is connected with the water outlet 12 of the cooling tower 10, and the two variable-frequency circulating water pumps 70 are arranged on the water outlet pipe 60 in parallel. The working principle is the same as that of the above, and is not described in detail herein.
Further, please refer to fig. 2, in the cooling circulation water frequency conversion control system according to embodiment 2 of the present invention, the water outlet pipe 60 is further connected to the water return pipe 40, and the connection point a is located on the water return pipe 40 between the temperature sensor 50 and the water inlet 11 of the cooling tower 10. A first electromagnetic valve 80 is arranged on the water return pipe 40 between the connection point A and the water inlet 11, a second electromagnetic valve 90 is arranged on the water outlet pipe 60 between the connection point A and the water outlet 12 of the cooling tower 10, and the first electromagnetic valve 80 and the second electromagnetic valve 90 are electrically connected with the temperature sensor 50.
The temperature is lower in winter, and environment self is enough to cool the water, consequently, when temperature sensor 50 detected that wet return 40 temperature is less than the temperature lower limit value, first solenoid valve 80 closed, second solenoid valve 90 opened, and the water of wet return 40 directly circulates away from outlet pipe 60, no longer flows through cooling tower 10, has not only reduced the energy consumption of cooling tower 10, has reduced manufacturing cost, has still avoided the water evaporation, has spattered the water waste that leads to the fact such as spill, saves the water consumption. When the ambient temperature can not satisfy the circulating water cooling requirement, when the wet return 40 temperature was higher than the temperature lower limit value promptly, first solenoid valve 80 opened, and second solenoid valve 90 closes, and the water of wet return 40 circulates from outlet pipe 60 after the cooling tower 10 cools off, satisfies the water demand.
The utility model utilizes the temperature sensor to detect the water temperature of the return water pipe, utilizes the fan frequency conversion controller to carry out frequency conversion control on the fan according to the change of the water temperature of the return water pipe, can reduce the energy consumption of the cooling tower, saves the electricity consumption, prolongs the service life of the fan and reduces the production cost; the variable-frequency circulating water pump can manually adjust the water quantity to match with actual water, so that the water quantity can be saved, the service life of the variable-frequency circulating water pump is prolonged, and the production cost is reduced; two variable-frequency circulating water pumps are arranged on the water outlet pipe in parallel, one is a working water pump, the other is a standby water pump, and when the working water pump fails, the standby water pump can be used, so that the continuous production is facilitated; the outlet pipe still is connected with the wet return, and when ambient temperature was lower winter, when temperature sensor detected the wet return temperature and was less than the temperature lower limit value, first solenoid valve was closed, and the second solenoid valve was opened, and the cooling circulation water of wet return directly goes out from the outlet pipe circulation, need not through the cooling tower, not only can reduce the cooling tower energy consumption, can also reduce the water resource waste that water evaporation, spatter and spill etc. and cause, reduction in production cost.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (3)
1. The utility model provides a cooling circulation water frequency conversion control system which characterized in that: the cooling tower comprises a cooling tower, a fan frequency conversion controller, a water return pipe, a temperature sensor, a water outlet pipe and two frequency conversion circulating water pumps, wherein the fan is arranged inside the cooling tower, and the fan frequency conversion controller is arranged outside the cooling tower and is electrically connected with the fan; the water return pipe is connected with a water inlet of the cooling tower, and the temperature sensor is arranged in the water return pipe and is electrically connected with the fan variable frequency controller; the water outlet pipe is connected with the water outlet of the cooling tower, and the two variable-frequency circulating water pumps are arranged on the water outlet pipe in parallel.
2. The cooling circulating water frequency conversion control system of claim 1, wherein: the water outlet pipe is also connected with the water return pipe, and the connection point is positioned on the water return pipe between the temperature sensor and the water inlet of the cooling tower.
3. The cooling circulating water frequency conversion control system of claim 2, wherein: the water outlet pipe is provided with a water inlet, a water outlet pipe is arranged between the water inlet and the water outlet of the cooling tower, the water outlet pipe is provided with a water outlet pipe, and the water outlet pipe is provided with a water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020994732.8U CN212300077U (en) | 2020-06-03 | 2020-06-03 | Cooling circulating water frequency conversion control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020994732.8U CN212300077U (en) | 2020-06-03 | 2020-06-03 | Cooling circulating water frequency conversion control system |
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| Publication Number | Publication Date |
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| CN212300077U true CN212300077U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020994732.8U Active CN212300077U (en) | 2020-06-03 | 2020-06-03 | Cooling circulating water frequency conversion control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375384A (en) * | 2021-07-17 | 2021-09-10 | 南京拓展科技有限公司 | Ultrahigh-precision process cooling water system and constant temperature control method thereof |
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2020
- 2020-06-03 CN CN202020994732.8U patent/CN212300077U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375384A (en) * | 2021-07-17 | 2021-09-10 | 南京拓展科技有限公司 | Ultrahigh-precision process cooling water system and constant temperature control method thereof |
| CN113375384B (en) * | 2021-07-17 | 2022-08-30 | 南京拓展科技有限公司 | Ultrahigh-precision process cooling water system and constant temperature control method thereof |
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