Efficient energy-saving equipment for machine room construction

Abstract

The utility model provides efficient energy-saving equipment for machine room construction, and relates to the technical field of central air conditioners. The energy-saving equipment for efficient machine room construction comprises a central air conditioner host, the central air conditioner host is provided with a chilled water flow adjusting mechanism, and the chilled water flow adjusting mechanism comprises a third chilled water return pipe. According to the energy-saving equipment for efficient machine room construction, the temperature of water flow in a second chilled water return pipe is detected through a second temperature sensor, then information is transmitted to a second PLC, the second PLC controls starting and stopping of a fixed-frequency chilled water pump by receiving the information transmitted by the second temperature sensor, and meanwhile the output power of a variable-frequency chilled water pump is controlled; therefore, the flow speed of chilled water of the device can be adjusted, the purpose of intelligently adjusting the refrigerating capacity output of the device is achieved, energy consumption of the device is reduced, the problems that a fixed-frequency chilled water pump cannot conduct variable-frequency adjusting control, energy consumption is high, and operation cost is increased are solved, and the energy-saving performance of the device is achieved.

Description

Technical Field

[0001] This utility model relates to an energy-saving device, specifically an energy-saving device for high-efficiency computer room construction, belonging to the field of central air conditioning technology. Background Technology

[0002] In large public places such as train stations, a centralized air conditioning system with a centralized cold source is generally used for cooling, and an independent machine room is provided. The chilled water pump and cooling water pump in the machine room are the energy transmission equipment of the central air conditioning system. The former transports chilled water from the chiller room to the air-conditioned areas (rooms) to meet their cooling requirements, while the latter moves the heat transferred from the air-conditioned areas to the chiller room to the outside of the station. The water pump is the second largest power-consuming equipment in the chiller room. The efficiency of the actual operation of the motor and water pump not only directly affects the power consumption of the chiller room, but also indirectly affects the performance of the chiller unit if the water pump flow rate is reasonable.

[0003] In the existing technology, the chilled water pumps of central air conditioning systems with centralized cold sources are generally fixed-frequency chilled water pumps. Although fixed-frequency chilled water pumps have a simple structure, low cost, convenient maintenance, stable and reliable operation, and long service life, and can reduce equipment wear caused by frequent start-stop, ensuring efficient operation, they cannot be frequency-controlled, have high energy consumption, and increase operating costs. Therefore, we provide an energy-saving device for high-efficiency computer room construction to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an energy-saving device for high-efficiency computer room construction, specifically as follows:

[0005] An energy-saving device for high-efficiency computer room construction includes a central air conditioning unit. The central air conditioning unit is equipped with a chilled water flow regulating mechanism. The chilled water flow regulating mechanism includes a third chilled water return pipe, which is connected to a fourth chilled water return pipe. A fixed-frequency chilled water pump is installed on the fourth chilled water return pipe. The fourth chilled water return pipe is connected to a fifth chilled water return pipe. The third chilled water return pipe is connected to a sixth chilled water return pipe, which is equipped with a variable-frequency chilled water pump. A second connecting rod is fixedly connected to the fourth chilled water return pipe. A second PLC controller is installed on the second connecting rod. The fifth chilled water return pipe is connected to a second chilled water return pipe. A second temperature sensor is installed on the second chilled water return pipe. The second temperature sensor establishes a bidirectional communication connection with the sixth chilled water return pipe. The second PLC controller establishes a bidirectional communication connection with both the fixed-frequency and variable-frequency chilled water pumps.

[0006] Preferably, the third chilled water return pipe is connected to the chilled water output terminal of the central air conditioning unit, and the sixth chilled water return pipe is connected to the fifth chilled water return pipe.

[0007] Preferably, the central air conditioning unit is provided with a cooling water flow regulating mechanism, which includes a first cooling water supply pipe connected to the cooling water input end of the central air conditioning unit, and a second cooling water supply pipe connected to the first cooling water supply pipe.

[0008] Preferably, the second cooling water supply pipe is equipped with a fixed-frequency cooling water pump, the second cooling water supply pipe is connected to a third cooling water supply pipe, the first cooling water supply pipe is connected to a fourth cooling water supply pipe, and the fourth cooling water supply pipe is equipped with a variable-frequency cooling water pump.

[0009] Preferably, the fourth cooling water supply pipe is connected to the third cooling water supply pipe, the second cooling water supply pipe is fixedly connected to the first connecting rod, the first connecting rod is equipped with the first PLC controller, and the cooling water output end of the central air conditioning unit is connected to the cooling water return pipe.

[0010] Preferably, the cooling water return pipe is equipped with a first temperature sensor, the cooling water return pipe is connected to a cooling tower, the output end of the cooling tower is connected to a third cooling water supply pipe, the first temperature sensor establishes a bidirectional communication connection with a first PLC controller, the first PLC controller establishes a bidirectional communication connection with a fixed-frequency cooling water pump, and the first PLC controller establishes a bidirectional communication connection with a variable-frequency cooling water pump.

[0011] Preferably, the chilled water output terminal of the central air conditioning unit is connected to a first chilled water supply pipe, the first chilled water supply pipe is connected to a water distributor, the water distributor is connected to multiple second chilled water supply pipes, each of the multiple second chilled water supply pipes is connected to a fan coil unit, the output terminal of the fan coil unit is connected to a first chilled water return pipe, the first chilled water return pipe is connected to a water collector, and the water collector is connected to the second chilled water return pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This energy-saving equipment for high-efficiency computer room construction detects the temperature of the water flow inside the second chilled water return pipe through a second temperature sensor, and then transmits the information to the second PLC controller. The second PLC controller controls the start and stop of the fixed-frequency chilled water pump based on the information received from the second temperature sensor, and simultaneously controls the output power of the variable-frequency chilled water pump. This allows for the adjustment of the chilled water flow rate of the device, achieving the purpose of intelligently adjusting the cooling capacity output of the device, and reducing the energy consumption of the device. It solves the problem that fixed-frequency chilled water pumps cannot be frequency-controlled, resulting in high energy consumption and increased operating costs, thus realizing the energy-saving performance of the device.

[0014] 2. The energy-saving equipment used in this high-efficiency computer room construction detects the temperature of the water flow inside the cooling water return pipe through a first temperature sensor, and then transmits the information to a first PLC controller. The first PLC controller controls the start and stop of the fixed-frequency cooling water pump based on the information received from the first temperature sensor, and at the same time controls the output power of the variable-frequency cooling water pump, thereby adjusting the flow rate of the cooling water in this device. This achieves the purpose of intelligently adjusting the flow rate of the cooling water in this device, reducing the energy consumption of this device, and realizing the energy-saving performance of this device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural exploded view of the cooling water flow regulating mechanism of this utility model;

[0017] Figure 3 This is a three-dimensional structural exploded view of the chilled water flow regulating mechanism of this utility model.

[0018] Figure Descriptions: 1. Central air conditioning unit; 2. Cooling water flow regulating mechanism; 201. First cooling water supply pipe; 202. Second cooling water supply pipe; 203. Fixed-frequency cooling water pump; 204. Third cooling water supply pipe; 205. Fourth cooling water supply pipe; 206. Variable-frequency cooling water pump; 207. First connecting rod; 208. First PLC controller; 3. First temperature sensor; 4. Chilled water flow regulating mechanism; 401. Third chilled water return pipe; 402. Fourth chilled water return pipe. 403. Return water pipe; 404. Fixed frequency chilled water pump; 405. Fifth chilled water return pipe; 406. Sixth chilled water return pipe; 407. Variable frequency chilled water pump; 408. Second connecting rod; 409. Second PLC controller; 5. Second temperature sensor; 6. First chilled water supply pipe; 7. Water distributor; 8. Second chilled water supply pipe; 9. Fan coil unit; 10. First chilled water return pipe; 11. Water collector; 12. Second chilled water return pipe; 13. Cooling water return pipe; 14. Cooling tower. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] Please see Figure 1 , Figure 2 , Figure 3 The system includes a central air conditioning unit 1, which is equipped with a chilled water flow regulating mechanism 4. The chilled water flow regulating mechanism 4 includes a third chilled water return pipe 401, which is connected to a fourth chilled water return pipe 402. A fixed-frequency chilled water pump 403 is installed on the fourth chilled water return pipe 402. A fifth chilled water return pipe 404 is also connected to the fourth chilled water return pipe 402. A sixth chilled water return pipe 405 is connected to the third chilled water return pipe 401. A variable-frequency chilled water pump 406 is installed on the sixth chilled water return pipe 405. A second connecting rod 407 is fixedly connected to the fourth chilled water return pipe 402. The connecting rod 407 is equipped with a second PLC controller 408. The fifth chilled water return pipe 404 is connected to the second chilled water return pipe 12. The second chilled water return pipe 12 is equipped with a second temperature sensor 5. The second temperature sensor 5 establishes a bidirectional communication connection with the sixth chilled water return pipe 405. The second PLC controller 408 establishes a bidirectional communication connection with the fixed-frequency chilled water pump 403. The second PLC controller 408 establishes a bidirectional communication connection with the variable-frequency chilled water pump 406. The third chilled water return pipe 401 is connected to the chilled water output terminal of the central air conditioning unit 1. The sixth chilled water return pipe 405 is connected to the fifth chilled water return pipe 404.

[0021] The fixed-frequency chilled water pump 403, variable-frequency chilled water pump 406, second PLC controller 408, and second temperature sensor 5 are all existing technologies and will not be described in detail. The second temperature sensor 5 detects the temperature of the water flow inside the second chilled water return pipe 12 and then transmits the information to the second PLC controller 408. The second PLC controller 408 controls the start and stop of the fixed-frequency chilled water pump 403 based on the information received from the second temperature sensor 5, and simultaneously controls the output power of the variable-frequency chilled water pump 406. This allows for the adjustment of the chilled water flow rate of the device, achieving intelligent adjustment of the cooling capacity output of the device and reducing energy consumption. This solves the problem that fixed-frequency chilled water pumps cannot be frequency-controlled, resulting in high energy consumption and increased operating costs, thus achieving energy efficiency in the use of this device.

[0022] Please refer to it again. Figure 1 , Figure 2 , Figure 3The central air conditioning unit 1 is equipped with a cooling water flow regulating mechanism 2. The cooling water flow regulating mechanism 2 includes a first cooling water supply pipe 201, which is connected to the cooling water input terminal of the central air conditioning unit 1. The first cooling water supply pipe 201 is connected to a second cooling water supply pipe 202, which is equipped with a fixed-frequency cooling water pump 203. The second cooling water supply pipe 202 is connected to a third cooling water supply pipe 204, and the first cooling water supply pipe 201 is connected to a fourth cooling water supply pipe 205, which is equipped with a variable-frequency cooling water pump 206. The fourth cooling water supply pipe 205 is connected to the third cooling water supply pipe 204. The system is connected to the second cooling water supply pipe 202, which is fixedly connected to the first connecting rod 207. The first connecting rod 207 is equipped with the first PLC controller 208. The cooling water output end of the central air conditioning unit 1 is connected to the cooling water return pipe 13, which is equipped with the first temperature sensor 3. The cooling water return pipe 13 is connected to the cooling tower 14, and the output end of the cooling tower 14 is connected to the third cooling water supply pipe 204. The first temperature sensor 3 establishes a bidirectional communication connection with the first PLC controller 208, the first PLC controller 208 establishes a bidirectional communication connection with the fixed-frequency cooling water pump 203, and the first PLC controller 208 establishes a bidirectional communication connection with the variable-frequency cooling water pump 206.

[0023] The fixed-frequency cooling water pump 203, variable-frequency cooling water pump 206, first PLC controller 208, and first temperature sensor 3 are all existing technologies and will not be described in detail. The first temperature sensor 3 detects the temperature of the water flow inside the cooling water return pipe 13 and then transmits the information to the first PLC controller 208. The first PLC controller 208 controls the start and stop of the fixed-frequency cooling water pump 203 based on the information received from the first temperature sensor 3, and at the same time controls the output power of the variable-frequency cooling water pump 206. This allows for the adjustment of the cooling water flow rate of the device, achieving the purpose of intelligently adjusting the cooling water flow rate of the device, reducing the energy consumption of the device, and realizing the energy-saving performance of the device.

[0024] Please refer to it again. Figure 1 , Figure 2 , Figure 3 The chilled water output end of the central air conditioning unit 1 is connected to a first chilled water supply pipe 6. The first chilled water supply pipe 6 is connected to a water distributor 7. The water distributor 7 is connected to multiple second chilled water supply pipes 8. The multiple second chilled water supply pipes 8 are all connected to fan coil units 9. The output end of the fan coil unit 9 is connected to a first chilled water return pipe 10. The first chilled water return pipe 10 is connected to a water collector 11. The water collector 11 is connected to the second chilled water return pipe 12.

[0025] In use, this invention works as follows: The second temperature sensor 5 detects the temperature of the water flowing inside the second chilled water return pipe 12, and then transmits the information to the second PLC controller 408. The second PLC controller 408, upon receiving the information from the second temperature sensor 5, controls the start and stop of the fixed-frequency chilled water pump 403, and simultaneously controls the output power of the variable-frequency chilled water pump 406. This allows for adjustment of the chilled water flow rate, achieving intelligent regulation of the device's cooling capacity output and reducing energy consumption. Similarly, the first temperature sensor 3 detects the temperature of the water flowing inside the cooling water return pipe 13, and then transmits the information to the first PLC controller 208. The first PLC controller 208, upon receiving the information from the first temperature sensor 3, controls the start and stop of the fixed-frequency cooling water pump 203, and simultaneously controls the output power of the variable-frequency cooling water pump 206. This allows for adjustment of the cooling water flow rate, achieving intelligent regulation of the device's cooling water flow rate, reducing energy consumption, and realizing energy efficiency.

[0026] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An energy-saving device for high-efficiency computer room construction, comprising a central air conditioning unit (1), characterized in that: The central air conditioner host (1) is provided with a chilled water flow adjusting mechanism (4), the chilled water flow adjusting mechanism (4) includes third chilled water return pipe (401), third chilled water return pipe (401) is connected with fourth chilled water return pipe (402), fourth chilled water return pipe (402) is installed with fixed frequency chilled water pump (403), fourth chilled water return pipe (402) is connected with fifth chilled water return pipe (404), third chilled water return pipe (401) is connected with sixth chilled water return pipe (405), sixth chilled water return pipe (405) is installed with variable frequency chilled water pump (406), fourth chilled water return pipe (402) is fixedly connected with second connecting rod (407), second connecting rod (407) is installed with second PLC controller (408), fifth chilled water return pipe (404) is connected with second chilled water return pipe (12), second chilled water return pipe (12) is installed with second temperature sensor (5), second temperature sensor (5) and sixth chilled water return pipe (405) establish bidirectional communication connection, second PLC controller (408) and fixed frequency chilled water pump (403) establish bidirectional communication connection, second PLC controller (408) and variable frequency chilled water pump (406) establish bidirectional communication connection.

2. The energy-saving device for high-efficiency machine room construction according to claim 1, characterized in that: Third chilled water return pipe (401) is connected with the chilled water output end of central air conditioner host (1), sixth chilled water return pipe (405) is connected with fifth chilled water return pipe (404).

3. The energy-saving device for high-efficiency machine room construction according to claim 2, characterized in that: The central air conditioner host (1) is provided with a cooling water flow adjusting mechanism (2), the cooling water flow adjusting mechanism (2) includes first cooling water supply pipe (201), first cooling water supply pipe (201) is connected with the cooling water input end of central air conditioner host (1), first cooling water supply pipe (201) is connected with second cooling water supply pipe (202).

4. The energy-saving device for high-efficiency machine room construction according to claim 3, characterized in that: Second cooling water supply pipe (202) is installed with fixed frequency cooling water pump (203), second cooling water supply pipe (202) is connected with third cooling water supply pipe (204), first cooling water supply pipe (201) is connected with fourth cooling water supply pipe (205), fourth cooling water supply pipe (205) is installed with variable frequency cooling water pump (206).

5. The energy-saving device for high-efficiency machine room construction according to claim 4, characterized in that: Fourth cooling water supply pipe (205) is connected with third cooling water supply pipe (204), second cooling water supply pipe (202) is fixedly connected with first connecting rod (207), first connecting rod (207) is installed with first PLC controller (208), and the cooling water output end of the central air conditioner host (1) is connected with cooling water return pipe (13).

6. The energy-saving device for high-efficiency machine room construction according to claim 5, characterized in that: The cooling water return pipe (13) is provided with a first temperature sensor (3), the cooling water return pipe (13) is communicated with a cooling tower (14), the output end of the cooling tower (14) is communicated with a third cooling water supply pipe (204), the first temperature sensor (3) is bidirectionally communicated with a first PLC controller (208), the first PLC controller (208) is bidirectionally communicated with a fixed frequency cooling water pump (203), and the first PLC controller (208) is bidirectionally communicated with a variable frequency cooling water pump (206).

7. The energy-saving device for high-efficiency machine room construction according to claim 1, characterized in that: The output end of the central air conditioner host (1) is communicated with a first chilled water supply pipe (6), the first chilled water supply pipe (6) is communicated with a water distributor (7), the water distributor (7) is communicated with a plurality of second chilled water supply pipes (8), and the plurality of second chilled water supply pipes (8) are all communicated with fan-coil units (9); the output end of the fan-coil unit (9) is communicated with a first chilled water return pipe (10), the first chilled water return pipe (10) is communicated with a water collector (11), and the water collector (11) is communicated with a second chilled water return pipe (12).

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