CN211400466U - Energy-saving cooling circulating water system - Google Patents
Energy-saving cooling circulating water system Download PDFInfo
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- CN211400466U CN211400466U CN201921091740.5U CN201921091740U CN211400466U CN 211400466 U CN211400466 U CN 211400466U CN 201921091740 U CN201921091740 U CN 201921091740U CN 211400466 U CN211400466 U CN 211400466U
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Abstract
The utility model relates to an energy-saving cooling circulation water system. The utility model aims at providing a simple structure, convenient operation's energy-saving cooling circulation water system to avoid hydrologic cycle pressure too big, it is extravagant to reduce the energy. The technical scheme of the utility model is that: the utility model provides an energy-saving refrigeration cycle water system, has cooling tower, hot exchange pipe and circulating water pump, and the delivery port of cooling tower is through circulating water pump, the hot exchange water inlet of inner loop inlet tube intercommunication, and the delivery port of hot exchange pipe is through the water inlet of inner loop wet return intercommunication cooling tower, its characterized in that: and a water inlet pressure sensor is arranged in the inner circulation water inlet pipe, the water inlet pressure sensor is connected with a PLC (programmable logic controller) through a circuit, and the PLC is connected with the circulating water pump through a frequency converter circuit. The utility model is suitable for a cooling water circulating system field.
Description
Technical Field
The utility model relates to an energy-saving cooling circulation water system. Is suitable for the field of cooling water circulation systems.
Background
At present, a welding workshop cooling circulating water system adopts a centralized water supply closed circulation mode, and a cooling circulating water pump room is specially constructed. The cooling circulation water has three 73kw water pumps, and under a normal working state, the two water pumps can meet the flow requirement, but need frequent manual switching. When no production plan is available and only groups are fixed, the requirement can be met without full-load operation of the cooling circulating water pump, but the water pump motor operates at constant power, so that the water circulating pressure is too high, water circulating equipment and pipelines are easily damaged, and energy waste is caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the existing problems, the energy-saving cooling circulating water system with simple structure and convenient operation is provided to avoid overlarge water circulating pressure and reduce energy waste.
The utility model adopts the technical proposal that: the utility model provides an energy-saving refrigeration cycle water system, has cooling tower, hot exchange pipe and circulating water pump, and the delivery port of cooling tower is through circulating water pump, the hot exchange water inlet of inner loop inlet tube intercommunication, and the delivery port of hot exchange pipe is through the water inlet of inner loop wet return intercommunication cooling tower, its characterized in that: and a water inlet pressure sensor is arranged in the inner circulation water inlet pipe, the water inlet pressure sensor is connected with a PLC (programmable logic controller) through a circuit, and the PLC is connected with the circulating water pump through a frequency converter circuit.
A return water pressure sensor is arranged in the internal circulation return water pipe and is connected with the PLC through a circuit;
the inner loop inlet tube is through moisturizing water pump intercommunication extrinsic cycle water pipe, the PLC controller is through moisturizing controller circuit connection the moisturizing water pump.
The internal circulation water inlet pipe is provided with a circulating water softening and dosing device which is connected with a dosing controller through a circuit, and the dosing controller is connected with the PLC through a circuit; a concentration sensor is arranged in the inner circulation water inlet pipe, and a concentration sensor circuit is connected with the PLC.
And a temperature sensor is arranged in the internal circulation water return pipe and is in circuit connection with the PLC, and the PLC is in circuit connection with a cooling fan of the cooling tower through a cooling tower controller.
The utility model has the advantages that: the utility model discloses acquire the water pressure in the inner loop intake pipe according to water pressure sensor that intakes, according to water pressure size regulation circulating water pump's frequency, avoid hydrologic cycle pressure too big, it is extravagant to reduce the energy.
The utility model discloses a water pressure in water and return water pressure sensor acquire inner loop inlet tube and the inner loop return water pipe to add water or follow the drainage of inner loop inlet tube in to the inner loop inlet tube according to pressure differential control moisturizing water pump between them, so that keep suitable pressure differential between inner loop inlet tube and the wet return.
The utility model discloses a concentration sensor acquires the concentration in the inner loop intake pipe to make it keep in suitable within range through control charge device and moisturizing water pump adjustment concentration.
The utility model discloses in acquire the inner loop wet return at temperature sensor to the cooling blower who controls the cooling tower when the temperature is on the high side improves the radiating efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a circuit block diagram of an embodiment.
Fig. 3 is a control flowchart of the embodiment.
Detailed Description
As shown in fig. 1, the present embodiment is an energy-saving cooling circulating water system, which includes a cooling tower 1, a heat exchange pipe 2 and a circulating water pump 3, wherein a water outlet of the cooling tower 1 is communicated with a water inlet of the heat exchange pipe 2 through the circulating water pump 3 and an internal circulation water inlet pipe 5, and a water outlet of the heat exchange pipe 2 is communicated with a water inlet of the cooling tower 1 through an internal circulation water return pipe 6. Wherein the internal circulation water inlet pipe 5 is communicated with the external circulation water pipe 7 through a water replenishing pump 4, and a circulating water softening and dosing device 13 is arranged on the internal circulation water inlet pipe 5; the cooling tower 1 is provided with a cooling fan 14 for assisting in heat dissipation.
In the embodiment, a water inlet pressure sensor 8 and a concentration sensor 9 are arranged in the inner circulation water inlet pipe 5; a backwater water pressure sensor 10 and a temperature sensor 11 are arranged in the internal circulation backwater pipe 6.
As shown in fig. 2, in this example, the water inlet pressure sensor 8, the concentration sensor 9, the water return pressure sensor 10 and the temperature sensor 11 are all electrically connected to a PLC controller 12 (siemens CPU200 series); the PLC 12 is connected with the circulating water pump 3 through a frequency converter circuit; the PLC 12 is connected with the water replenishing pump 4 through a water replenishing controller circuit; the PLC 12 is connected with a circulating water softening and dosing device 13 through a dosing controller circuit; the PLC controller 12 is connected with the cooling fan 14 through a controller circuit of the cooling tower 1. Wherein the concentration sensor 9 detects the conductivity (mu S/cm) of the circulating water to be less than 2000, and the types are S-9850NP and S-6010.
As shown in fig. 3, the working principle of the present embodiment is as follows:
the PLC 12 acquires the water pressure in the internal circulation water inlet pipe 5 through the water inlet pressure sensor 8, and raises the frequency of the circulating water pump 3 through the frequency converter when the pressure is lower so as to raise the water pressure in the circulating water inlet pipe; when the pressure is higher, the frequency of the circulating water pump 3 is reduced through the frequency converter, so that the water pressure in the circulating water inlet pipe is reduced.
The PLC 12 acquires the water pressure in the internal circulation water inlet pipe 5 and the internal circulation water return pipe 6 through the water inlet pressure sensor 8 and the water return pressure sensor 10, and controls the water supplementing pump 4 to add water into the internal circulation water inlet pipe 5 through the water supplementing controller when the pressure difference between the two is low so as to increase the pressure difference between the water inlet pipe and the water return pipe; when the pressure difference between the water inlet pipe and the water return pipe is higher, the water is discharged from the internal circulation water inlet pipe 5 to the outside through the water replenishing water pump 4, so that the pressure difference between the water inlet pipe and the water return pipe is reduced.
The PLC 12 acquires the concentration of the medicine in the internal circulation water inlet pipe 5 through the concentration sensor 9, and controls the circulating water softening and medicine adding device 13 to add medicine into the internal circulation water inlet pipe 5 through the medicine adding controller when the concentration is low so as to improve the concentration; when the concentration is higher, the water supplementing controller controls the water supplementing pump to add water into the internal circulation water inlet pipe 5 so as to reduce the concentration.
The PLC controller 12 obtains the water temperature in the internal circulation return pipe 6 through the temperature sensor 11, and controls the cooling fan 14 to be started when the water temperature is too high, so as to improve the heat dissipation efficiency.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can change, add or replace the above examples within the scope of the present invention.
Claims (4)
1. The utility model provides an energy-saving refrigeration cycle water system, has cooling tower (1), hot exchange pipe (2) and circulating water pump (3), and the delivery port of cooling tower (1) is through circulating water pump (3), the water inlet of internal circulation inlet tube (5) intercommunication hot exchange pipe (2), and the delivery port of hot exchange pipe (2) is through the water inlet of internal circulation wet return (6) intercommunication cooling tower (1), its characterized in that: be equipped with into water pressure sensor (8) in inner loop inlet tube (5), water pressure sensor (8) circuit connection PLC controller (12) intake, PLC controller (12) are through converter circuit connection circulating water pump (3).
2. The energy-saving cooling circulation water system according to claim 1, wherein: a return water pressure sensor (8) is arranged in the internal circulation return water pipe (6), and the return water pressure sensor is connected with the PLC (12) through a circuit;
inner loop inlet tube (5) are through moisturizing water pump (4) intercommunication outer circulating pipe (7), PLC controller (12) are through moisturizing controller circuit connection moisturizing water pump (4).
3. The energy-saving cooling circulation water system according to claim 2, wherein: a circulating water softening and dosing device (13) is arranged on the internal circulating water inlet pipe (5), the dosing device is connected with a dosing controller through a circuit, and the dosing controller is connected with the PLC (12) through a circuit; a concentration sensor (9) is arranged in the inner circulation water inlet pipe (5), and the concentration sensor (9) is connected with a PLC (programmable logic controller) through a circuit.
4. The energy-saving cooling circulating water system according to claim 1, 2 or 3, characterized in that: and a temperature sensor (11) is arranged in the inner circulation water return pipe (6), the temperature sensor is connected with the PLC (12) through a circuit, and the PLC (12) is connected with a cooling fan (14) of the cooling tower (1) through a controller circuit of the cooling tower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091740.5U CN211400466U (en) | 2019-07-12 | 2019-07-12 | Energy-saving cooling circulating water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091740.5U CN211400466U (en) | 2019-07-12 | 2019-07-12 | Energy-saving cooling circulating water system |
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| Publication Number | Publication Date |
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| CN211400466U true CN211400466U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921091740.5U Active CN211400466U (en) | 2019-07-12 | 2019-07-12 | Energy-saving cooling circulating water 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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2019
- 2019-07-12 CN CN201921091740.5U patent/CN211400466U/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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