CN211205031U - Temperature regulation and control device of cooling tower cooling system - Google Patents
Temperature regulation and control device of cooling tower cooling system Download PDFInfo
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- CN211205031U CN211205031U CN201922162696.9U CN201922162696U CN211205031U CN 211205031 U CN211205031 U CN 211205031U CN 201922162696 U CN201922162696 U CN 201922162696U CN 211205031 U CN211205031 U CN 211205031U
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Abstract
A temperature control device of a cooling tower cooling system comprises a refrigeration air-conditioning system, a cooling system, a heat exchange system and a temperature control system, wherein the cooling system is connected with the refrigeration air-conditioning system in series, the output end of the refrigeration air-conditioning system is connected with a tail end fan coil, the input end of the refrigeration air-conditioning system is connected with the cooling system, the heat exchange system is respectively connected with the cooling system and the refrigeration air-conditioning system in series, an electric three-way valve is arranged at the pipeline connection position of a heat exchanger, the tail end fan coil and a refrigerating unit in the temperature control system, a load tail end electric control valve is arranged on a second cold output pipe, temperature measuring points are distributed at all positions of the system, and control points are arranged on a cooling tower fan and a refrigerating water pump.
Description
Technical Field
The utility model relates to a temperature regulation and control device field especially relates to a temperature regulation and control device of cooling tower cooling system.
Background
The cooling tower cooling system utilizes a natural cold source to meet the cooling load requirements of certain buildings or areas in winter or transition seasons, the switching time of the cooling tower cooling system and the electric refrigerating system needs to be determined according to the outdoor wet bulb temperature and the required cold quantity of the cooling area, but the related temperature parameters of the cooling tower cooling system cannot be accurately judged by the conventional device, and the accurate regulation and control cannot be performed.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a temperature regulation and control device of cooling tower cooling system, complete set P L C control system judges suitable cooling tower cooling opportunity according to the temperature and the flow signal of gathering, carries out the variable regulation and control to electric three-way valve, cooling water pump and cooling tower fan, carries out real-time supervision and control to whole refrigeration process through the input analog quantity of system.
(II) technical scheme
The utility model provides a temperature regulating device of a cooling tower cooling system, which comprises a refrigeration air-conditioning system, a cooling system, a heat exchange system and a temperature regulating system;
the cooling system comprises a cooling water pump, a cooling tower fan, a first water inlet pipe and a first water outlet pipe; the cooling water pump is connected with a cooling tower fan through a first water inlet pipe, and the cooling tower fan is connected with a refrigeration air-conditioning system through a first water outlet pipe; the cooling water pumps are arranged in a plurality of groups and are connected in parallel;
the refrigeration air-conditioning system comprises a tail end fan coil, a chilled water pump, a first cold output pipe,
The refrigerating unit, a second cold output pipe, a heat output pipe and a cold input pipe; the chilled water pump is connected with the tail end fan coil through a first cold output pipe; the refrigerating unit is connected with the tail end fan coil through a second cold output pipe; the refrigerating water pump is connected with the refrigerating unit in series, the refrigerating water pump is connected with the cooling water pump through a heat output pipe, and the refrigerating unit is connected with the first water outlet pipe through a cold input pipe; a circulating pipeline is formed among the refrigerating unit, the heat output pipe, the cooling water pump, the first water inlet pipe, the cooling tower fan, the first water outlet pipe and the cold input pipe; the freezing water pumps are arranged in a plurality of groups and are connected in parallel; the refrigerating units are arranged in multiple groups and are connected in parallel;
the heat exchange system comprises a heat exchanger, a second water inlet pipe, a third water inlet pipe, a second water outlet pipe and a third water outlet pipe; the second water inlet pipe, the third water inlet pipe, the second water outlet pipe and the third water outlet pipe are all connected with the heat exchanger; the second water inlet pipe is connected with the heat output pipe, the third water inlet pipe is connected with the first water outlet pipe, the second water outlet pipe is connected with the chilled water pump, and the third water outlet pipe is connected with the second cold output pipe;
the temperature regulation and control system comprises an outdoor temperature sensor, a complete set of P L C control system, a load tail end electric control valve, an electric three-way valve, temperature measuring points and control points, wherein the electric three-way valve is arranged at the pipeline connection part of the heat exchanger, the tail end fan coil and the refrigerating unit;
the complete set of P L C control system, the outdoor temperature sensor, the electric three-way valve, the five temperature measuring points and the five control points are electrically connected.
Preferably, the power supply input end of the P L C control system set is added with an EMC filtering component.
The technical scheme of the utility model each side temperature signal among each temperature measurement station feedback system refrigeration process, the P L C control signal is received to the control point, outdoor temperature sensor's temperature signal and the terminal electric control valve's of load flow signal feedback are in complete set P L C control system, complete set P L C control system reunion relevant temperature and flow information, judge suitable cooling tower cooling opportunity, carry out the variable regulation and control to electric three-way valve, cooling water pump and cooling tower fan, input analog quantity through the system carries out real-time supervision and control to whole refrigeration process.
Drawings
Fig. 1 is a schematic structural diagram of a temperature control device of a cooling tower cooling system according to the present invention.
The reference numeral 1 is an outdoor temperature sensor, 2 is a complete set of P L C control system, 3 is a load tail end electric control valve, 4 is a tail end fan coil, 5 is a chilled water pump, 51 is a first cold output pipe, 6 is an electric three-way valve, 7 is a heat exchanger, 71 is a second water inlet pipe, 72 is a third water inlet pipe, 73 is a second water outlet pipe, 74 is a third water outlet pipe, 8 is a refrigerating unit, 81 is a second cold output pipe, 82 is a heat output pipe, 83 is a cold input pipe, 9 is a cooling water pump, 10 is a cooling tower fan, 101 is a first water inlet pipe, 102 is a first water outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, the temperature control device of a cooling tower cooling system provided by the present invention comprises a refrigeration air conditioning system, a cooling system, a heat exchange system and a temperature control system;
the cooling system comprises a cooling water pump 9, a cooling tower fan 10, a first water inlet pipe 101 and a first water outlet pipe 102; the cooling water pump 9 is connected with a cooling tower fan 10 through a first water inlet pipe 101, and the cooling tower fan 10 is connected with a refrigeration air-conditioning system through a first water outlet pipe 102; a plurality of groups of cooling water pumps 9 are arranged and are connected in parallel;
the refrigeration air-conditioning system comprises a tail end fan coil 4, a chilled water pump 5, a first cold output pipe 51, a refrigeration unit 8, a second cold output pipe 81, a heat output pipe 82 and a cold input pipe 83; the chilled water pump 5 is connected with the tail end fan coil 4 through a first cold output pipe 51; the refrigerating unit 8 is connected with the tail end fan coil 4 through a second cold output pipe 81; the chilled water pump 5 is connected with the refrigerating unit 8 in series, the chilled water pump 5 is connected with the cooling water pump 9 through a heat output pipe 82, and the refrigerating unit 8 is connected with the first water outlet pipe 102 through a cold input pipe 83; a circulating pipeline is formed among the refrigerating unit 8, the heat output pipe 82, the cooling water pump 9, the first water inlet pipe 101, the cooling tower fan 10, the first water outlet pipe 102 and the cold input pipe 83; a plurality of groups of the freezing water pumps 5 are arranged and are connected in parallel; the refrigerating units 8 are arranged in multiple groups and are connected in parallel;
the heat exchange system comprises a heat exchanger 7, a second water inlet pipe 71, a third water inlet pipe 72, a second water outlet pipe 73 and a third water outlet pipe 74; the second water inlet pipe 71, the third water inlet pipe 72, the second water outlet pipe 73 and the third water outlet pipe 74 are all connected with the heat exchanger 7; the second water inlet pipe 71 is connected with the heat output pipe 82, the third water inlet pipe 72 is connected with the first water outlet pipe 102, the second water outlet pipe 73 is connected with the chilled water pump 5, and the third water outlet pipe 74 is connected with the second cold output pipe 81;
the temperature regulation and control system comprises an outdoor temperature sensor 1, a complete set P L C control system 2, a load tail end electric control valve 3, an electric three-way valve 6, five temperature measuring points and five control points, wherein the electric three-way valve 6 is arranged at the pipeline connection part of a heat exchanger 7, a tail end fan coil 4 and a refrigerating unit 8;
the complete set of P L C control system 2, the outdoor temperature sensor 1, the electric three-way valve 6, the five temperature measuring points and the five control points are electrically connected.
The utility model discloses in, each side temperature signal in each temperature measurement station feedback system refrigeration process, P L C control signal is received to the control point, outdoor temperature sensor 1's temperature signal and the flow signal feedback of the terminal electric control valve 3 of load are in complete set P L C control system 2, complete set P L C control system 2 reunion relevant temperature and flow information, judge suitable cooling tower cooling opportunity, to electric three-way valve 6, cooling water pump 9 and cooling tower fan 10 carry out the variable regulation and control, input analog quantity through the system carries out real-time supervision and control to whole refrigeration process.
In an alternative embodiment, the power input end of the P L C control system 2 is added with EMC filter components to reduce the interference of the power signal line to the control system.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (2)
1. A temperature regulation and control device of a cooling tower cooling system is characterized by comprising a refrigeration air-conditioning system, a cooling system, a heat exchange system and a temperature regulation and control system;
the cooling system comprises a cooling water pump (9), a cooling tower fan (10), a first water inlet pipe (101) and a first water outlet pipe (102); the cooling water pump (9) is connected with a cooling tower fan (10) through a first water inlet pipe (101), and the cooling tower fan (10) is connected with a refrigeration air-conditioning system through a first water outlet pipe (102); a plurality of groups of cooling water pumps (9) are arranged and are connected in parallel;
the refrigeration air-conditioning system comprises a tail end fan coil (4), a chilled water pump (5), a first cold output pipe (51), a refrigeration unit (8), a second cold output pipe (81), a heat output pipe (82) and a cold input pipe (83); the chilled water pump (5) is connected with the tail end fan coil (4) through a first cold output pipe (51); the refrigerating unit (8) is connected with the tail end fan coil (4) through a second cold output pipe (81); the refrigeration unit (8) is connected with the refrigeration unit (8) in series, the refrigeration pump (5) is connected with the cooling water pump (9) through a heat output pipe (82), and the refrigeration unit (8) is connected with the first water outlet pipe (102) through a cold input pipe (83); a circulating pipeline is formed among the refrigerating unit (8), the heat output pipe (82), the cooling water pump (9), the first water inlet pipe (101), the cooling tower fan (10), the first water outlet pipe (102) and the cold input pipe (83); a plurality of groups of freezing water pumps (5) are arranged and are connected in parallel; a plurality of groups of refrigerating units (8) are arranged and are connected in parallel;
the heat exchange system comprises a heat exchanger (7), a second water inlet pipe (71), a third water inlet pipe (72), a second water outlet pipe (73) and a third water outlet pipe (74); the second water inlet pipe (71), the third water inlet pipe (72), the second water outlet pipe (73) and the third water outlet pipe (74) are connected with the heat exchanger (7); the second water inlet pipe (71) is connected with the heat output pipe (82), the third water inlet pipe (72) is connected with the first water outlet pipe (102), the second water outlet pipe (73) is connected with the chilled water pump (5), and the third water outlet pipe (74) is connected with the second cold output pipe (81);
the temperature regulation and control system comprises an outdoor temperature sensor (1), a complete set of P L C control system (2), a load tail end electric control valve (3), an electric three-way valve (6), temperature measuring points and control points, wherein the electric three-way valve (6) is arranged at the pipeline connection part of a heat exchanger (7), a tail end fan coil (4) and a refrigerating unit (8), the load tail end electric control valve (3) is arranged on a second cold output pipe (81) and is positioned between the electric three-way valve (6) and the tail end fan coil (4), five temperature measuring points are respectively arranged on a third water inlet pipe (72), a second water inlet pipe (71), a third water outlet pipe (74), a connecting pipeline for a refrigerating water pump (5) and the refrigerating unit (8) and a first cold output pipe (51), three of the five control points are arranged on a cooling tower fan (10), and two of the five control points are arranged on the refrigerating water pump (5);
the complete set of P L C control system (2), the outdoor temperature sensor (1), the electric three-way valve (6), the five temperature measuring points and the five control points are electrically connected.
2. Temperature regulating device for a cooling tower cooling system according to claim 1, characterized in that the power input of the P L C control system package (2) is added with EMC filter components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162696.9U CN211205031U (en) | 2019-12-05 | 2019-12-05 | Temperature regulation and control device of cooling tower cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162696.9U CN211205031U (en) | 2019-12-05 | 2019-12-05 | Temperature regulation and control device of cooling tower cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211205031U true CN211205031U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922162696.9U Expired - Fee Related CN211205031U (en) | 2019-12-05 | 2019-12-05 | Temperature regulation and control device of cooling tower cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211205031U (en) |
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2019
- 2019-12-05 CN CN201922162696.9U patent/CN211205031U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20211205 |