CN212930316U - Modular integrated water chilling unit - Google Patents
Modular integrated water chilling unit Download PDFInfo
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- CN212930316U CN212930316U CN202021869693.5U CN202021869693U CN212930316U CN 212930316 U CN212930316 U CN 212930316U CN 202021869693 U CN202021869693 U CN 202021869693U CN 212930316 U CN212930316 U CN 212930316U
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Abstract
A modular integrated water chilling unit belongs to the technical field of integrated central air conditioners. The utility model provides a current integration water-cooled cooling water set do not have standby function, in case unit or cooling tower break down, will unable provide the refrigerated water, the poor problem of unit reliability. A chilled water return pipe is communicated with an evaporator inlet of the magnetic suspension water chilling unit, a freezing pump is arranged on the chilled water return pipe, a chilled water supply pipe is communicated with an evaporator outlet of the magnetic suspension water chilling unit, a cooling water outlet pipe of a non-drifting water cooling tower is communicated with a condenser inlet of the magnetic suspension water chilling unit, a cooling pump is arranged on the cooling water outlet pipe, and a cooling water inlet pipe of the non-drifting water cooling tower is communicated with a condenser outlet of the magnetic suspension water chilling unit; a first communicating pipe is communicated between cooling water inlet pipes of the two non-drifting water cooling towers, and a second communicating pipe is communicated between cooling water outlet pipes of the two non-drifting water cooling towers. Compared with the prior art, the reliability of the unit is greatly improved.
Description
Technical Field
The utility model relates to a modular integration cooling water set belongs to integrated form central air conditioning technical field.
Background
With the rapid development of the economic level of China, the contradiction between the environmental problem and the energy problem is increasingly prominent, the traditional air conditioner room mode cannot meet the requirement of new development, and people put forward higher requirements for the air conditioner room. As a new cold source mode, through popularization and application in recent years, the integrated water-cooled water chiller has the characteristics of energy conservation, convenience, simple operation and maintenance and the like, and is increasingly popular with users. The integrated water-cooled water chilling unit is an integrated central air-conditioning product developed on the basis of the traditional air-conditioning machine room. Replace traditional civil engineering computer lab. Has all the functions of the central air-conditioning room. After the air conditioner is connected with the power supply and the freezing water pipe, the cold source of the air conditioner can be provided. It does not need to build civil engineering machine room, does not need to set up the cooling tower in addition. Can be directly placed on the outdoor roof and outdoor ground of the building.
The conventional water chiller unit integrates a water-cooled water chiller unit main body 201, a chilled water pump 202, a cooling water pump 203, a cooling tower 204, a starting cabinet 205, a control system, valves, instruments, pipelines, accessories, a base, a shell and the like into a whole unit. The system flow is shown in fig. 8. A common fixed-frequency pump is selected as a freezing water pump of the traditional integrated water-cooled water chilling unit. The traditional integrated water-cooled chiller is usually a centrifugal chiller or a screw chiller, wherein a centrifugal compressor is adopted as a compressor of the centrifugal chiller, and a screw compressor is adopted as a compressor of the screw chiller. The traditional outdoor integrated water-cooled water chilling unit does not have a standby function, once the unit or the cooling tower breaks down, chilled water cannot be provided, and great influence can be caused on production life.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve current integration water-cooled cooling water set and do not have standby function, in case unit or cooling tower break down, will unable provide the refrigerated water, the poor problem of unit reliability, and then provide a modular integration cooling water set.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a modular integrated water chilling unit comprises two refrigeration modules, wherein each refrigeration module comprises a chilled water supply pipe, a chilled water return pipe, a magnetic suspension water chilling unit, a non-floating water cooling tower, a cooling pump and a freezing pump, the chilled water return pipe is communicated with an evaporator inlet of the magnetic suspension water chilling unit, the freezing pump is arranged on the chilled water return pipe, the chilled water supply pipe is communicated with an evaporator outlet of the magnetic suspension water chilling unit, a cooling water outlet pipe of the non-floating water cooling tower is communicated with a condenser inlet of the magnetic suspension water chilling unit, the cooling pump is arranged on the cooling water outlet pipe, and a cooling water inlet pipe of the non-floating water cooling tower is communicated with a condenser outlet of the magnetic suspension water chilling unit; a first communicating pipe is communicated between cooling water inlet pipes of the two non-drifting water cooling towers, a second communicating pipe is communicated between cooling water outlet pipes of the two non-drifting water cooling towers, and a valve is arranged on each pipeline.
Furthermore, a first valve is arranged on the cooling water inlet pipe between the first communicating pipe and each non-drifting water cooling tower, a second valve is arranged on the first communicating pipe, a third valve is arranged on the cooling water outlet pipe between the second communicating pipe and each non-drifting water cooling tower, and a fourth valve is arranged on the second communicating pipe.
Furthermore, a fifth valve is arranged on a cooling water outlet pipe between the variable-frequency cooling pump in each refrigeration module and the magnetic suspension water chilling unit, a sixth valve is arranged on each chilled water return pipe, and a seventh valve is arranged on each chilled water supply pipe.
Furthermore, a first bypass pipeline is communicated between the chilled water return pipe and the cooling water inlet pipe, a second bypass pipeline is communicated between the chilled water supply pipe and the cooling water outlet pipe, and an eighth valve is arranged on each bypass pipeline.
Further, every refrigeration module all connects and is provided with the switch board.
Furthermore, the upper part of the non-floating water cooling tower is provided with a plurality of cooling fans, an air outlet above each cooling fan is provided with a silencing adjusting plate, and one end of each silencing adjusting plate is rotatably connected to the top shell of the non-floating water cooling tower.
Further, the refrigeration pump is a variable frequency refrigeration pump, and the cooling pump is a variable frequency cooling pump.
Furthermore, the non-floating water cooling tower is also communicated with a cooling water automatic dosing device.
Furthermore, a manual water replenishing pipe is communicated with the cooling water inlet pipe.
Compared with the prior art, the utility model has the following effect:
the two refrigeration modules are enabled to work completely independently or mutually stand by arranging the two refrigeration modules and arranging the first communicating pipe and the second communicating pipe between the two refrigeration modules, when valves on the two communicating pipes are closed, the two refrigeration modules work independently, when one refrigeration module breaks down or is shut down for maintenance, the other refrigeration module can still continue to run to prepare chilled water so as to provide an air conditioner cold source; when the valves on the two communicating pipes are opened, the two non-floating water cooling towers can be mutually standby, namely when the non-floating water cooling tower in one refrigeration module breaks down, the non-floating water cooling tower is communicated with the other non-floating water cooling tower through the control valve. Compared with the prior art, the reliability of the unit is greatly improved.
Drawings
FIG. 1 is a flow chart of the system of the present application;
FIG. 2 is a schematic top view of a refrigeration module;
FIG. 3 is a schematic front view of a refrigeration module;
FIG. 4 is a rear view schematic of a refrigeration module;
FIG. 5 is a schematic left side view of a refrigeration module;
FIG. 6 is a schematic right view of a refrigeration module;
FIG. 7 is a schematic main sectional view of a non-bleaching water cooling tower;
fig. 8 is a flow chart of a prior art system.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 7, and a modular integrated chiller includes two refrigeration modules 1, each refrigeration module 1 includes a chilled water supply pipe 11, a chilled water return pipe 12, a magnetic suspension chiller 13, a non-drift water cooling tower 14, a cooling pump 15, and a freezing pump 16, where the chilled water return pipe 12 is communicated with an evaporator inlet of the magnetic suspension chiller 13, the freezing pump 16 is disposed on the chilled water return pipe 12, the chilled water supply pipe 11 is communicated with an evaporator outlet of the magnetic suspension chiller 13, a cooling water outlet pipe 18 of the non-drift water cooling tower 14 is communicated with a condenser inlet of the magnetic suspension chiller 13, the cooling pump 15 is disposed on the cooling water outlet pipe 18, and a cooling water inlet pipe 17 of the non-drift water cooling tower 14 is communicated with a condenser outlet of the magnetic suspension chiller 13; a first communicating pipe 2 is communicated between cooling water inlet pipes 17 of the two non-drifting water cooling towers 14, a second communicating pipe 3 is communicated between cooling water outlet pipes 18 of the two non-drifting water cooling towers 14, and each pipeline is provided with a valve.
The two refrigeration modules 1 are enabled to work completely independently or mutually stand by arranging the two refrigeration modules and arranging the first communicating pipe 2 and the second communicating pipe 3 between the two refrigeration modules, when valves on the two communicating pipes are closed, the two refrigeration modules 1 work independently, when one refrigeration module 1 breaks down or is shut down for maintenance, the other refrigeration module 1 can still continue to operate to prepare chilled water so as to provide an air conditioner cold source; when the valves on the two communicating pipes are opened, the two non-floating water cooling towers 14 can be mutually standby, namely when the non-floating water cooling tower 14 in one refrigeration module 1 fails, the non-floating water cooling tower is communicated with the other non-floating water cooling tower through the control valve. Compared with the prior art, the reliability of the unit is greatly improved.
A control system 4 is arranged in a refrigeration module 1 and used as an operation brain of the modular water chilling unit in the application, global optimization is applied, the energy efficiency of the whole intelligent integrated modular water chilling unit is used as a control target, and all parts of the intelligent control unit operate in the best working condition.
The entire modular chiller is disposed in a housing.
The integral type design that freezing pump 16 and cooling pump 15 in this application all adopt intelligent frequency conversion integrative pump, adopt water pump, control system 4 and converter to combine together promptly and the water pump of manufacturing provides intelligent transmission and distribution power for the cold source.
The application is matched with the control system 4, and the automatic switching of real-time detection enables the unit to be in a stable, efficient and energy-saving running state.
The intelligent frequency conversion integrated pump can provide an operation database, the database is internally provided with a frequency converter, all performance data and energy-saving control curves of the operation of the water pump are implanted into the frequency converter, and an actual operation working condition point and an actual worst operation working condition point can be found and set according to different requirements of a field area. The intelligent frequency conversion integrated pump is applied to the intelligent integrated modular water chilling unit, the secondary intelligent control curve is arranged through the control system 4 to control the water pump to run according to the intelligent tracking of the control curve, the secondary intelligent control curve can enable the water pump to run under the actual working condition, the intelligent tracking optimization is achieved, and the purposes of high efficiency and energy conservation are achieved. The control system 4 controls the water pump to be started according to the highest operation efficiency of the water pump. According to the change of the flow of the load end and the efficiency point of the water pump, the running number and the working frequency of the water pump are controlled, the on-line water pump is always kept in a high-efficiency area, and the energy-saving running of the freezing water pump is realized. Thereby greatly improving the energy efficiency of the seasonal machine room and achieving the purpose of energy conservation.
The magnetic suspension water chilling unit 13 is a water-cooled high-efficiency magnetic suspension water chilling unit 13, and a magnetic suspension refrigeration host machine adopting a direct-current variable frequency compressor technology can provide a high-efficiency air conditioner cold source. The control system 4 is combined with the water-cooled high-efficiency magnetic suspension water chilling unit 13, so that extremely excellent partial load efficiency and ultrahigh system energy efficiency are obtained.
The magnetic suspension water chilling unit 13, the cooling pump 15 and the freezing pump 16 described in the present application all adopt the prior art, and are not described herein again.
The working principle is as follows:
chilled water backwater from the tail end of the air conditioner enters a refrigeration module 1 through a chilled water backwater pipe 12, and the chilled water backwater is subjected to heat exchange and temperature reduction in a magnetic suspension water chilling unit 13 to become chilled water for supplying water and is conveyed to the tail end of the air conditioner through a chilled water supply pipe 11;
cooling water in the non-drift water cooling tower 14 enters the magnetic suspension water chilling unit 13 through the cooling water outlet pipe 18, and enters the non-drift water cooling tower 14 through the cooling water inlet pipe 17 for cooling after heat exchange and temperature rise in the magnetic suspension water chilling unit 13, so that the circulation of the cooling water is completed.
A first valve 101 is arranged on the cooling water inlet pipe 17 between the first communicating pipe 2 and each non-drifting water cooling tower 14, a second valve 102 is arranged on the first communicating pipe 2, a third valve 103 is arranged on the cooling water outlet pipe 18 between the second communicating pipe 3 and each non-drifting water cooling tower 14, and a fourth valve 104 is arranged on the second communicating pipe 3.
A fifth valve 105 is arranged on a cooling water outlet pipe 18 between the variable frequency cooling pump 15 and the magnetic suspension water chilling unit 13 in each refrigeration module 1, a sixth valve 106 is arranged on each chilled water return pipe 12, and a seventh valve 107 is arranged on each chilled water supply pipe 11.
A first bypass pipeline 5 is communicated between the chilled water return pipe 12 and the cooling water inlet pipe 17, a second bypass pipeline 6 is communicated between the chilled water supply pipe 11 and the cooling water outlet pipe 18, and an eighth valve 108 is arranged on each bypass pipeline. And by arranging the bypass pipeline, the utilization of natural cold energy is realized. Namely, when the outdoor ambient temperature is lower than a certain temperature (transition seasons such as spring and autumn, or outdoor ambient temperature is lower at different times in the first summer and the first autumn within one day), the magnetic suspension water chilling unit 13, the fifth valve 105, the sixth valve 106 and the seventh valve 107 are closed, the two eighth valves 108 are opened, the chilled water return pipe 12 and the chilled water supply pipe 11 are directly connected with the non-drifting cooling tower 14 and enter a natural cold energy utilization mode, and heat at the tail end of the air conditioner is cooled to a proper temperature through heat exchange of the non-drifting cooling tower 14 and then is sent to the tail end of the air conditioner through the cooling pump 15, so that the refrigeration cycle is completed. At the moment, the cold source of the air conditioner only utilizes the cold energy in the external environment, and only a cooling pump and a cooling fan without a floating water cooling tower need to be started, so that much electric energy can be saved. Compared with the prior art, the refrigerating water prepared by the magnetic suspension water chilling unit is lower in temperature (generally provides 7 ℃ of refrigerating water), but the refrigerating water with higher temperature can also meet the refrigerating requirement of the indoor air conditioner when the outdoor environment temperature is lower in the transition season and early summer and early autumn.
Each refrigeration module 1 is provided with a power distribution cabinet 7 in a connected manner. And power is supplied to each electric device.
The upper part of the non-floating water cooling tower 14 is provided with a plurality of cooling fans 14-1, an air outlet above each cooling fan 14-1 is provided with a silencing adjusting plate 14-2, and one end of each silencing adjusting plate 14-2 is rotatably connected to a top shell of the non-floating water cooling tower 14. The silencing adjusting plate 14-2 is a silencing plate attached to the inside of a stainless steel outer plate, so that noise can be reduced and shielded, and the influence of noise of the cooling fan 14-1 on a building and the surrounding environment is reduced. When the cooling fan 14-1 is shut down, the silencing adjusting plate 14-2 falls down completely to block rain, snow, foreign matters and the like, so that the cleanness of the cooling filler is kept, the wind resistance is reduced, and the operation energy consumption of the cooling fan 14-1 is reduced. When the silencing adjusting plate 14-2 is closed, the cooling filler cannot be ventilated, and the service life of the filler can be prolonged. The corresponding number of silencing adjusting plates 14-2 are arranged according to the number of the cooling fans 14-1, and the silencing adjusting plates 14-2 and the cooling fans 14-1 are synchronously opened or closed, so that the flow cavity grading adjusting function is realized, namely, the corresponding silencing adjusting plates 14-2 are opened according to the number of the running cooling fans 14-1, and the corresponding silencing adjusting plates 14-2 above the non-running cooling fans 14-1 are closed, so that outdoor air is prevented from being sucked back into the non-drifting cooling tower 14 through the air outlets of the non-running cooling fans 14-1 and then discharged through the non-running cooling fans 14-1. The flow cavity grading adjustment technology improves the airflow organization in the non-drifting water cooling tower 14, and because all the wind passes through the cooling fan 14-1 which is running, the heat exchange area between the outdoor air and the cooling filler is enlarged, and the cooling capacity is effectively enhanced. In the non-floating water cooling tower of the present application, except for the elimination interval adjusting plate 14-2, other structures are the prior art, and are not further described here.
The modular integrated water chilling unit is further connected with a control system 4, the refrigerating pump 16 is a variable-frequency refrigerating pump 16, and the cooling pump 15 is a variable-frequency cooling pump 15.
The non-drift water cooling tower 14 is also communicated with a cooling water automatic medicine feeding device 8. And automatically and periodically injecting a medicament into a water replenishing pipe of the non-bleaching water cooling tower 14 so as to ensure the quality of the cooling water.
The cooling water inlet pipe 17 is communicated with a manual water replenishing pipe 9.
Claims (9)
1. The modular integrated water chilling unit is characterized in that: it comprises two refrigeration modules (1), each refrigeration module (1) comprises a chilled water supply pipe (11), a chilled water return pipe (12), a magnetic suspension water chilling unit (13), a non-floating water cooling tower (14), a cooling pump (15) and a refrigeration pump (16), wherein the chilled water return pipe (12) is communicated with the inlet of the evaporator of the magnetic suspension water chilling unit (13), and a freezing pump (16) is arranged on the freezing water return pipe (12), a freezing water supply pipe (11) is communicated with an evaporator outlet of the magnetic suspension water chilling unit (13), a cooling water outlet pipe (18) of the non-drift water cooling tower (14) is communicated with a condenser inlet of the magnetic suspension water chilling unit (13), the cooling pump (15) is arranged on the cooling water outlet pipe (18), and a cooling water inlet pipe (17) of the non-floating water cooling tower (14) is communicated with the outlet of a condenser of the magnetic suspension water chilling unit (13); a first communicating pipe (2) is communicated between cooling water inlet pipes (17) of the two non-drifting water cooling towers (14), a second communicating pipe (3) is communicated between cooling water outlet pipes (18) of the two non-drifting water cooling towers (14), and a valve is arranged on each pipeline.
2. The modular integrated chiller as set forth in claim 1, wherein: a first valve (101) is arranged on a cooling water inlet pipe (17) between the first communicating pipe (2) and each non-drifting water cooling tower (14), a second valve (102) is arranged on the first communicating pipe (2), a third valve (103) is arranged on a cooling water outlet pipe (18) between the second communicating pipe (3) and each non-drifting water cooling tower (14), and a fourth valve (104) is arranged on the second communicating pipe (3).
3. The modular integrated chiller as set forth in claim 2 wherein: a fifth valve (105) is arranged on a cooling water outlet pipe (18) between a cooling pump (15) in each refrigeration module (1) and the magnetic suspension water chilling unit (13), a sixth valve (106) is arranged on each chilled water return pipe (12), and a seventh valve (107) is arranged on each chilled water supply pipe (11).
4. The modular integrated chiller as set forth in claims 1, 2 or 3 wherein: a first bypass pipeline (5) is communicated between the chilled water return pipe (12) and the cooling water inlet pipe (17), a second bypass pipeline (6) is communicated between the chilled water supply pipe (11) and the cooling water outlet pipe (18), and an eighth valve (108) is arranged on each bypass pipeline.
5. The modular integrated chiller as set forth in claim 4 wherein: each refrigeration module (1) is provided with a power distribution cabinet (7) in a connected mode.
6. The modular integrated chiller as set forth in claims 1, 2, 3 or 5 wherein: the upper part of the non-drifting cooling tower (14) is provided with a plurality of cooling fans (14-1), an air outlet above each cooling fan (14-1) is provided with a silencing adjusting plate (14-2), and one end of each silencing adjusting plate (14-2) is rotatably connected to a top shell of the non-drifting cooling tower (14).
7. The modular integrated chiller as set forth in claim 1, wherein: the freezing pump (16) is a variable-frequency freezing pump (16), and the cooling pump (15) is a variable-frequency cooling pump (15).
8. The modular integrated chiller as set forth in claims 1, 2, 3, 5 or 7 wherein: the non-bleaching water cooling tower (14) is also communicated with a cooling water automatic dosing device (8).
9. The modular integrated chiller as set forth in claims 1, 2, 3, 5 or 7 wherein: a manual water replenishing pipe (9) is communicated with the cooling water inlet pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869693.5U CN212930316U (en) | 2020-09-01 | 2020-09-01 | Modular integrated water chilling unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869693.5U CN212930316U (en) | 2020-09-01 | 2020-09-01 | Modular integrated water chilling unit |
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| CN212930316U true CN212930316U (en) | 2021-04-09 |
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| CN202021869693.5U Active CN212930316U (en) | 2020-09-01 | 2020-09-01 | Modular integrated water chilling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791133A (en) * | 2022-04-01 | 2022-07-26 | 杭州龙华环境集成系统有限公司 | Cooling module of high-efficient intelligent cold source of central air conditioning |
-
2020
- 2020-09-01 CN CN202021869693.5U patent/CN212930316U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791133A (en) * | 2022-04-01 | 2022-07-26 | 杭州龙华环境集成系统有限公司 | Cooling module of high-efficient intelligent cold source of central air conditioning |
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