CN104807248B - A kind of centralized cold and heat source system for workshop circulation - Google Patents
A kind of centralized cold and heat source system for workshop circulation Download PDFInfo
- Publication number
- CN104807248B CN104807248B CN201510143773.XA CN201510143773A CN104807248B CN 104807248 B CN104807248 B CN 104807248B CN 201510143773 A CN201510143773 A CN 201510143773A CN 104807248 B CN104807248 B CN 104807248B
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- water pump
- cooling
- chilled
- workshop
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of centralized cold and heat source system for workshop circulation, it is characterised in that include：Refrigeration equipment in air condition, is connected with Workshop air conditioner system chilled(cooling) water return (CWR), for providing low-temperature receiver for Workshop air conditioner system chilled(cooling) water return (CWR)；Painting technology cold source equipment, is connected with painting technology system chilled(cooling) water return (CWR), for providing low-temperature receiver for painting technology system chilled(cooling) water return (CWR)；Heat resource equipment, is connected with workshop hot water loop, for providing thermal source for workshop hot water loop；Centralized-control center, is connected with refrigeration equipment in air condition, painting technology cold source equipment and heat resource equipment respectively, for controlling the work of refrigeration equipment in air condition, painting technology cold source equipment and heat resource equipment.Compared with prior art, the present invention has cold source equipment and heat resource equipment simultaneously, meets workshop for low-temperature receiver and the demand of thermal source.
Description
Technical field
The present invention relates to a kind of changes in temperature technology, more particularly, to a kind of centralized Cooling and Heat Source for workshop circulation
System.
Background technology
At present, in industrial production, especially automobile manufacture industry, often needs hot water and cold water in workshop simultaneously, and
Current industrial production faces this while needing the situation of heat supply and refrigeration, is generally divided using heating system and cold supply system
From the mode being implemented separately.
For example 103528292 A of Chinese patent CN disclose a kind of workshop temperature control refrigeration system, including：Control device, cold
Solidifying device, water supply installation, circulation line and chilled water unit, by following between chilled water unit, water supply installation and condensing unit
Endless tube road is connected, and control device is connected with chilled water unit respectively at condensing unit, water supply installation, sets inside condensing unit
It is equipped with temperature sensor.However, the workshop temperature control refrigeration system is only capable of providing a kind of cold water of temperature, it is impossible to which it is right in workshop to meet
In the demand of different temperatures cold water, the such as air-conditioning water temperature different with the hot water needs required for the painting technology system of workshop, and
And they suffer from different chilled(cooling) water return (CWR)s, the workshop temperature control refrigeration system cannot be provided and be provided for two chilled(cooling) water return (CWR)s
The cold water of different temperatures.
And for example 203334021 U of Chinese patent CN disclose a kind of energy-saving heating system for printworks, including：
Oil supply stove, one or more production equipment and steam generator, oil supply stove, are connected with production equipment by oil supply pipe, Xiang Sheng
Product equipment provides the first conduction oil；Production equipment, is connected with steam generator by the first return line, is carried to steam generator
For the second conduction oil；Steam generator, is connected with oil supply stove by the second return line, provides the 3rd conduction oil to oil supply stove.
However, the energy-saving heating system cannot be realized providing low-temperature receiver.
Content of the invention
The purpose of the present invention is exactly to provide a kind of for workshop circulation to overcome the defect of above-mentioned prior art presence
The centralized cold and heat source system of water system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of centralized cold and heat source system for workshop circulation, it is characterised in that include：
Refrigeration equipment in air condition, is connected with Workshop air conditioner system chilled(cooling) water return (CWR), for returning for Workshop air conditioner system cooling water
Road provides low-temperature receiver；
Painting technology cold source equipment, is connected with painting technology system chilled(cooling) water return (CWR), for cooling down for painting technology system
Water loop provides low-temperature receiver；
Heat resource equipment, is connected with workshop hot water loop, for providing thermal source for workshop hot water loop；
Centralized-control center, is connected with refrigeration equipment in air condition, painting technology cold source equipment and heat resource equipment, respectively for controlling
The work of refrigeration equipment in air condition processed, painting technology cold source equipment and heat resource equipment.
The refrigeration equipment in air condition includes least one set the first centrifugal chilling unit group, the first centrifugal chilling unit group
Including the cooling tower, cooling water pump, centrifugal chilling unit and the chilled water pump that are sequentially connected, the chilled water pump and workshop air-conditioning system
The connection of system chilled(cooling) water return (CWR), the cooling tower, cooling water pump, centrifugal chilling unit and chilled water pump are connected with centralized-control center
Connect；
When the first centrifugal chilling unit group is started shooting, cooling water pump, chilled water pump, cooling tower and centrifugal chilling unit according to
Secondary unlatching, when the first centrifugal chilling unit group is shut down, centrifugal chilling unit, cooling tower, chilled water pump and cooling water pump according to
Secondary shutdown, and after centrifugal chilling unit is closed, chilled water pump at least postpones to close for five minutes.
The painting technology cold source equipment includes that least one set the second centrifugal chilling unit group and least one set screw are cold
Freeze unit, the second centrifugal chilling unit group and screw freezing unit respectively with centralized-control center and painting technology system
The connection of system chilled(cooling) water return (CWR).
Cooling tower that the second centrifugal chilling unit group includes being sequentially connected, cooling water pump, centrifugal chilling unit and cold
Freeze water pump, the chilled water pump is connected with painting technology system chilled(cooling) water return (CWR), the cooling tower, cooling water pump, centrifugal cold
Jelly machine and chilled water pump are connected with centralized-control center；
When the second centrifugal chilling unit group is started shooting, cooling water pump, chilled water pump, cooling tower and centrifugal chilling unit according to
Secondary unlatching, when the second centrifugal chilling unit group is shut down, centrifugal chilling unit, cooling tower, chilled water pump and cooling water pump according to
Secondary shutdown, and after centrifugal chilling unit is closed, chilled water pump at least postpones to close for five minutes.
The painting technology cold source equipment also includes the first standby chilled water pump, the first standby chilled water pump with
Chilled water pump in two centrifugal chilling unit groups is in parallel, and with the second centrifugal chilling unit group in chilled water pump alternate run.
The screw freezing unit includes cooling tower, cooling water pump, screw refrigerator and water supply pump, the chilled water
Pump is connected with painting technology system chilled(cooling) water return (CWR), the cooling tower, cooling water pump, screw refrigerator and chilled water pump with
Centralized-control center connects；
When the screw freezing unit is started shooting, cooling water pump, chilled water pump, cooling tower and screw refrigerator are opened successively
Open, when the screw freezing unit shuts down, screw refrigerator, cooling tower, chilled water pump and cooling water pump are shut down successively, and
After screw refrigerator cuts out, chilled water pump at least postpones to close for five minutes.
The painting technology cold source equipment also includes standby cooling water pump and the second standby chilled water pump, the standby cooling
The cooling water pump that water pump is freezed with screw in unit is in parallel, and freezes the cooling water pump alternate run in unit with screw,
The chilled water pump that the second standby chilled water pump is freezed with screw in unit is in parallel, and freezes with screw cold in unit
Freeze water pump alternate run.
The centralized cold and heat source system also includes freezing for complementary refrigeration equipment in air condition and painting technology cold source equipment
The motor-driven valve of amount, the motor-driven valve are connected with refrigeration equipment in air condition, painting technology cold source equipment and centralized-control center respectively.
The heat resource equipment includes that least one set is used for the heat-exchange unit for providing hot water for workshop hot water loop, the heat exchange
Steam valve group that unit includes being sequentially connected, heat exchanger, heat-exchanger pump, the heat-exchanger pump is connected with workshop hot water loop, described
Steam valve group includes two steam valves parallel with one another, and the steam valve, heat exchanger and heat-exchanger pump are and centralized Control
Center connects.
Compared with prior art, the present invention has advantages below：
1) while having cold source equipment and heat resource equipment, workshop is met for low-temperature receiver and the demand of thermal source, while and due to
There is refrigeration equipment in air condition and painting technology cold source equipment, the cooling water that can be respectively air-conditioning system and painting technology system is returned
Road provides the cooling water of different temperatures.
2) the first centrifugal chilling unit can be lowered the temperature to the cooling water in the chilled(cooling) water return (CWR) of air-conditioning system, and cool down
Tower then can for enter centrifugal chilling unit in cooling with water precooled, so as to reduce energy consumption.
3) painting technology cold source equipment includes least one set the second centrifugal chilling unit group and the freezing of least one set screw
Unit, centrifugal chilling unit group can carry out fast cooling, and screw freezing unit then has larger volume, therefore for oil
For lacquerer's process system, different operating modes are adapted to.
4) due to the stability that painting technology system requirements is higher, it is centrifugal that the first standby chilled water pump can reduce by second
In freezing unit, the load of chilled water pump, improves stability.
5) standby cooling water pump can reduce the load of the cooling water pump in screw freezing unit, the second standby chilled water
Pump can reduce the load of the chilled water pump in screw freezing unit, improve stability.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Structural representations of the Fig. 2 for refrigeration equipment in air condition；
Structural representations of the Fig. 3 for painting technology cold source equipment；
Wherein：1st, refrigeration equipment in air condition, 2, painting technology cold source equipment, 3, heat resource equipment, 4, centralized-control center, 5, car
Between air-conditioning system chilled(cooling) water return (CWR), 6, painting technology system chilled(cooling) water return (CWR), 7, workshop hot water loop, 8, motor-driven valve, 11, cooling
Tower, 12, cooling water pump, 13, centrifugal chilling unit, 14, chilled water pump, the 23, first standby chilled water pump, 24, standby cooling water
Pump, the 25, second standby chilled water pump, 211, cooling tower, 212, cooling water pump, 213, centrifugal chilling unit, 214, chilled water pump,
221st, cooling tower, 222, cooling water pump, 223, screw refrigerator, 224, water supply pump.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention be not limited to
Following embodiments.
A kind of centralized cold and heat source system for workshop circulation, as shown in figure 1, including：
Refrigeration equipment in air condition 1, is connected with Workshop air conditioner system chilled(cooling) water return (CWR) 5, for for Workshop air conditioner system cooling water
Loop 5 provides low-temperature receiver；
Painting technology cold source equipment 2, is connected with painting technology system chilled(cooling) water return (CWR) 6, for for painting technology system cold
But water loop 6 provides low-temperature receiver；
Heat resource equipment 3, is connected with workshop hot water loop 7, for providing thermal source for workshop hot water loop 7；
Centralized-control center 4, is connected with refrigeration equipment in air condition 1, painting technology cold source equipment 2 and heat resource equipment 3 respectively, is used
Work in control refrigeration equipment in air condition 1, painting technology cold source equipment 2 and heat resource equipment 3.
As shown in Fig. 2 refrigeration equipment in air condition 1 includes least one set the first centrifugal chilling unit group, the first centrifugal freezing
Unit includes cooling tower 11, cooling water pump 12, centrifugal chilling unit 13 and the chilled water pump 14 being sequentially connected, chilled water pump 14 with
Workshop air conditioner system chilled(cooling) water return (CWR) 5 connects, and cooling tower 11, cooling water pump 12, centrifugal chilling unit 13 and chilled water pump 14 are equal
It is connected with centralized-control center 4；
When first centrifugal chilling unit group is started shooting, cooling water pump 12, chilled water pump 14, cooling tower 11 and centrifugal chilling unit
13 open successively, when the first centrifugal chilling unit group is shut down, centrifugal chilling unit 13, cooling tower 11, chilled water pump 14 and cooling
After water pump 12 is shut down successively, and centrifugal chilling unit 13 is closed, chilled water pump 14 at least postpones to close for five minutes, chilled water pump 14
Postpone to close for five minutes and still the water of lower temperature in refrigeration equipment in air condition 1 can be entered after centrifugal chilling unit 13 is closed
Row water conservancy diversion, and then avoid water at low temperature from being stranded in centrifugal chilling unit 13 damaging centrifugal chilling unit 13, so can extend from
The service life of core type refrigerator 13.
In the present embodiment, cooling water pump 12 and chilled water pump 14 adopt variable frequency pump, Workshop air conditioner system cooling water to return
The first temperature sensor is provided with road 5, and cooling water pump 12 and chilled water pump 14 change according to the data that the first temperature sensor is gathered
Become the running frequency of oneself to control the water temperature in Workshop air conditioner system chilled(cooling) water return (CWR) 5.
As shown in figure 3, painting technology cold source equipment 2 includes least one set the second centrifugal chilling unit group and least one set spiral shell
Rod-type freeze unit, the second centrifugal chilling unit group and screw freezing unit respectively with centralized-control center 4 and painter
Process system chilled(cooling) water return (CWR) 6 connects.
Cooling tower 211 that second centrifugal chilling unit group includes being sequentially connected, cooling water pump 212, centrifugal chilling unit 213
With chilled water pump 214, chilled water pump 214 is connected with painting technology system chilled(cooling) water return (CWR) 6, cooling tower 211, cooling water pump 212,
Centrifugal chilling unit 213 and chilled water pump 214 are connected with centralized-control center 4；
When second centrifugal chilling unit group is started shooting, cooling water pump 212, chilled water pump 214, cooling tower 211 and centrifugal cold
Jelly machine 213 is opened successively, when the second centrifugal chilling unit group is shut down, centrifugal chilling unit 213, cooling tower 211, chilled water pump
214 and cooling water pump 212 shut down successively, and centrifugal chilling unit 213 close after, chilled water pump 214 at least postpones five minutes pass
Close.
In the present embodiment, cooling water pump 212 and chilled water pump 214 are variable frequency pump, and painting technology system cooling water is returned
Second temperature sensor, the data that cooling water pump 212 and chilled water pump 214 are gathered according to second temperature sensor are provided with road 6
Change the running frequency of oneself, to control the water temperature in painting technology system chilled(cooling) water return (CWR) 6.
Painting technology cold source equipment 2 also includes the first standby chilled water pump 23, the first standby chilled water pump 23 with second
Chilled water pump 214 in centrifugal chilling unit group is in parallel, and replaces fortune with the chilled water pump 214 in the second centrifugal chilling unit group
OK, chilled water pump 23 thinks variable frequency pump, and the data according to second temperature sensor collection change the running frequency of oneself, to control
Water temperature in liquefaction lacquerer's process system chilled(cooling) water return (CWR) 6.
Screw freezing unit includes cooling tower 221, cooling water pump 222, screw refrigerator 223 and water supply pump 224, cold
Freeze water pump 224 to be connected with painting technology system chilled(cooling) water return (CWR) 6, cooling tower 221, cooling water pump 222, screw refrigerator 223
It is connected with centralized-control center 4 with chilled water pump 224；
When screw freezing unit is started shooting, cooling water pump 222, chilled water pump 224, cooling tower 221 and screw refrigerator
223 open successively, when screw freezing unit shuts down, screw refrigerator 223, cooling tower 221, chilled water pump 224 and cooling
After water pump 222 is shut down successively, and screw refrigerator cuts out, chilled water pump 224 at least postpones to close for five minutes.
Painting technology cold source equipment 2 also includes standby cooling water pump 24 and the second standby chilled water pump 25, standby cooling water
The cooling water pump 222 that pump 24 is freezed with screw in unit is in parallel, and replaces with the cooling water pump 222 in screw freezing unit
Operation, the chilled water pump 224 that the second standby chilled water pump 25 is freezed with screw in unit are in parallel, and freeze unit with screw
In 224 alternate run of chilled water pump.
Centralized cold and heat source system is also included for 2 refrigerating capacity of complementary refrigeration equipment in air condition 1 and painting technology cold source equipment
Motor-driven valve 8, the motor-driven valve 8 is connected with refrigeration equipment in air condition 1, painting technology cold source equipment 2 and centralized-control center 4 respectively.
Motor-driven valve 8 achieves the mutual equilibrium of refrigerating capacity between refrigeration equipment in air condition 1 and painting technology cold source equipment 2, when summer excessively
The weather of high temperature, when 1 refrigerating capacity of refrigeration equipment in air condition is not enough, can be by the refrigerating capacity in painting technology cold source equipment 2 to workshop
Supplement in air-conditioning system chilled(cooling) water return (CWR) 5, vice versa.
Heat resource equipment 3 include least one set for for workshop hot water loop 7 offer hot water heat-exchange unit, heat-exchange unit bag
Include be sequentially connected steam valve group, heat exchanger, heat-exchanger pump, heat-exchanger pump is connected with workshop hot water loop 7, and steam valve group includes
Two steam valves parallel with one another, steam valve, heat exchanger and heat-exchanger pump are connected with centralized-control center 4.
Different heat-exchange units can be independently arranged target temperature, thus can be each height time in workshop hot water loop 7
Road provides the hot water of different temperatures.
Claims (8)
1. a kind of centralized cold and heat source system for workshop circulation, it is characterised in that include：
Refrigeration equipment in air condition, is connected with Workshop air conditioner system chilled(cooling) water return (CWR), for carrying for Workshop air conditioner system chilled(cooling) water return (CWR)
For low-temperature receiver,
Painting technology cold source equipment, is connected with painting technology system chilled(cooling) water return (CWR), for returning for painting technology system cooling water
Road provides low-temperature receiver,
Heat resource equipment, is connected with workshop hot water loop, for providing thermal source for workshop hot water loop；
Centralized-control center, is connected with refrigeration equipment in air condition, painting technology cold source equipment and heat resource equipment, respectively for controlling sky
Adjust the work of cold source equipment, painting technology cold source equipment and heat resource equipment；
The refrigeration equipment in air condition includes that least one set the first centrifugal chilling unit group, the first centrifugal chilling unit group include
Cooling tower, cooling water pump, centrifugal chilling unit and the chilled water pump being sequentially connected, the chilled water pump are cold with Workshop air conditioner system
But water loop connection, the cooling tower, cooling water pump, centrifugal chilling unit and chilled water pump are connected with centralized-control center,
When the first centrifugal chilling unit group is started shooting, cooling water pump, chilled water pump, cooling tower and centrifugal chilling unit are opened successively
Open, when the first centrifugal chilling unit group is shut down, centrifugal chilling unit, cooling tower, chilled water pump and cooling water pump stop successively
Machine, and after centrifugal chilling unit is closed, chilled water pump at least postpones to close for five minutes.
2. a kind of centralized cold and heat source system for workshop circulation according to claim 1, it is characterised in that
The painting technology cold source equipment includes least one set the second centrifugal chilling unit group and least one set screw freezing unit, institute
State the second centrifugal chilling unit group and screw freezing unit respectively with centralized-control center and painting technology system cooling water
Loop connects.
3. a kind of centralized cold and heat source system for workshop circulation according to claim 2, it is characterised in that
The second centrifugal chilling unit group includes cooling tower, cooling water pump, centrifugal chilling unit and the chilled water pump being sequentially connected, institute
State chilled water pump to be connected with painting technology system chilled(cooling) water return (CWR), the cooling tower, cooling water pump, centrifugal chilling unit and freezing
Water pump is connected with centralized-control center；
When the second centrifugal chilling unit group is started shooting, cooling water pump, chilled water pump, cooling tower and centrifugal chilling unit are opened successively
Open, when the second centrifugal chilling unit group is shut down, centrifugal chilling unit, cooling tower, chilled water pump and cooling water pump stop successively
Machine, and after centrifugal chilling unit is closed, chilled water pump at least postpones to close for five minutes.
4. a kind of centralized cold and heat source system for workshop circulation according to claim 3, it is characterised in that
The painting technology cold source equipment also includes the first standby chilled water pump, the first standby chilled water pump centrifugal with second
Chilled water pump in freezing unit is in parallel, and with the second centrifugal chilling unit group in chilled water pump alternate run.
5. a kind of centralized cold and heat source system for workshop circulation according to claim 2, it is characterised in that
The screw freezing unit includes cooling tower, cooling water pump, screw refrigerator and water supply pump, the chilled water pump and paint
Process system chilled(cooling) water return (CWR) connects, and the cooling tower, cooling water pump, screw refrigerator and chilled water pump are and centralized Control
Center connects；
When the screw freezing unit is started shooting, cooling water pump, chilled water pump, cooling tower and screw refrigerator are opened successively,
When the screw freezing unit shuts down, screw refrigerator, cooling tower, chilled water pump and cooling water pump are shut down successively, and spiral shell
After rod-type refrigerator cuts out, chilled water pump at least postpones to close for five minutes.
6. a kind of centralized cold and heat source system for workshop circulation according to claim 5, it is characterised in that
The painting technology cold source equipment also includes standby cooling water pump and the second standby chilled water pump, the standby cooling water pump and spiral shell
Cooling water pump in rod-type freezing unit is in parallel, and freezes the cooling water pump alternate run in unit with screw, and described second
The chilled water pump that standby chilled water pump is freezed with screw in unit is in parallel, and the chilled water pump freezed with screw in unit is handed over
For operation.
7. a kind of centralized cold and heat source system for workshop circulation according to claim 1, it is characterised in that
The centralized cold and heat source system is also included for the electronic of complementary refrigeration equipment in air condition and painting technology cold source equipment refrigerating capacity
Valve, the motor-driven valve are connected with refrigeration equipment in air condition, painting technology cold source equipment and centralized-control center respectively.
8. a kind of centralized cold and heat source system for workshop circulation according to claim 1, it is characterised in that
The heat resource equipment includes least one set for providing the heat-exchange unit of hot water for workshop hot water loop, and the heat-exchange unit includes
The steam valve group that is sequentially connected, heat exchanger, heat-exchanger pump, the heat-exchanger pump are connected with workshop hot water loop, the steam valve
Group includes that two steam valves parallel with one another, the steam valve, heat exchanger and heat-exchanger pump are connected with centralized-control center.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143773.XA CN104807248B (en) | 2015-03-30 | 2015-03-30 | A kind of centralized cold and heat source system for workshop circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143773.XA CN104807248B (en) | 2015-03-30 | 2015-03-30 | A kind of centralized cold and heat source system for workshop circulation |
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| CN104807248A CN104807248A (en) | 2015-07-29 |
| CN104807248B true CN104807248B (en) | 2017-03-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106766298A (en) * | 2016-12-29 | 2017-05-31 | 宁波杭州湾新区祥源动力供应有限公司 | One kind life air-conditioning system and the system combined cooling device of industrial air conditioning |
| CN111425994A (en) * | 2020-04-09 | 2020-07-17 | 王涛 | Management and control system for optimizing energy consumption of central air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5367638B2 (en) * | 2009-05-28 | 2013-12-11 | 中部電力株式会社 | Medium temperature control system |
| CN201579169U (en) * | 2009-11-13 | 2010-09-15 | 深圳创维－Rgb电子有限公司 | Device for automatically controlling paint temperature |
| CN202719672U (en) * | 2012-08-02 | 2013-02-06 | 上海安悦节能技术有限公司 | Cold hot water comprehensive energy utilization device |
| CN203615549U (en) * | 2013-12-19 | 2014-05-28 | 天津盛相电子有限公司 | Comprehensive regulation and control switching system of air conditioner in workshop |
| CN203635453U (en) * | 2013-12-26 | 2014-06-11 | 震旦（中国）有限公司 | Thermal-cold cycling system of paint airing room of furniture factory |
| CN204176960U (en) * | 2014-08-29 | 2015-02-25 | 上海安悦节能技术有限公司 | The recuperation of heat of a kind of factory utilizes control system |
| CN204574608U (en) * | 2015-03-30 | 2015-08-19 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of centralized cold and heat source system for workshop circulation |
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