CN114087674A - Double-cold-source control system, method and device - Google Patents
Double-cold-source control system, method and device Download PDFInfo
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- CN114087674A CN114087674A CN202111258079.4A CN202111258079A CN114087674A CN 114087674 A CN114087674 A CN 114087674A CN 202111258079 A CN202111258079 A CN 202111258079A CN 114087674 A CN114087674 A CN 114087674A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a double-cold-source control system, which comprises: the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve; the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve; the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition. The coil pipe of the cold section of the low-temperature meter and the coil pipe of the cold section of the high-temperature meter are effectively applied, and the two units run simultaneously and run under partial load, so that the system is more efficient and energy-saving.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a double-cold-source control system, a double-cold-source control method and a double-cold-source control device.
Background
Traditional two cold source systems, low temperature water in its low temperature water unit only can flow through the cold section of low temperature table, high temperature water in the high temperature water unit only can flow through the cold section of high temperature table, when two cold source systems only run low temperature system, the coil pipe of the cold section of high temperature table is in idle state, can cause the wasting of resources of certain degree, and in entire system's operation, the rate of utilization of high temperature cold source is lower, the live time is short, the condition that the coil pipe of the cold section of high temperature table is in long-term idle state will appear.
Disclosure of Invention
In order to solve the problems, the invention provides a novel double-cold-source energy-saving control system, which effectively utilizes a coil pipe of a low-temperature meter cold section and a coil pipe of a high-temperature meter cold section, and simultaneously improves the condition that only one unit is started and operates in a full-load state in the prior art when the novel double-cold-source system operates in a low-temperature water working condition, so that the two units operate simultaneously and operate in partial load, and compared with the traditional double-cold-source system, the novel double-cold-source system is more energy-saving.
In a first aspect of the present invention, there is provided a dual cold source control system, the system comprising:
the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve;
the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve;
the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition.
In some embodiments, the terminal modular air conditioning unit includes:
the system comprises a fresh air section, a coarse effect filtering section, a high temperature surface cooling section, a mixed air section, an air blower section, a flow equalizing section, a low temperature surface cooling section, an air outlet section and a box body;
the fresh air section, the coarse effect filtering section, the high-temperature surface cooling section, the air mixing section, the air blower section, the flow equalizing section, the low-temperature surface cooling section and the air outlet section are connected in sequence and are arranged in the box body;
and the low-temperature surface cooling section is connected with the high-temperature surface cooling section through a water supply pipeline provided with a valve.
In some embodiments, when the system operates at a low temperature water condition, the first unit operates at a low temperature water condition and the second unit operates at a low temperature water condition.
In some embodiments, the first unit operates at a low temperature water condition and the second unit operates at a low temperature water condition, including:
adjusting the valve to a first operating mode;
and after the water in the first unit and the water in the second unit are converged, the water flows through a low-temperature surface cooling section and a high-temperature surface cooling section of the tail end combined air conditioning unit first and then flows back to the first unit and the second unit.
In some embodiments, said adjusting said valve to a first mode of operation comprises:
opening a valve on a water supply pipeline between the first unit and the low-temperature surface cooling section;
opening a valve on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
opening a valve on a water supply pipeline between the second unit and the low-temperature surface cooling section;
opening a valve on a water return pipeline between the second unit and the first unit;
closing a valve on a water supply pipeline between the second unit and the high-temperature surface cooling section;
and closing a valve on a water return pipeline between the first unit and the low-temperature meter cooling section.
In some embodiments, when the system operates both a low temperature water condition and a high temperature water condition, the first unit operates the low temperature water condition and the second unit operates the high temperature water condition.
In some embodiments of the present invention, the,
the first unit operates the low temperature water working condition, the second unit operates the high temperature water working condition, include:
adjusting the valve to a second mode of operation;
the low-temperature water in the first unit directly flows back to the first unit after flowing through the low-temperature surface cooling section of the tail end combined air conditioning unit;
and the high-temperature water in the second unit directly flows back to the second unit after flowing through the high-temperature surface cooling section of the tail end combined air conditioning unit.
In some embodiments, said adjusting said valve to a second mode of operation comprises:
opening a valve on a water supply pipeline between the first unit and the low-temperature surface cooling section;
opening a valve on a water return pipeline between the first unit and the low-temperature surface cooling section;
closing a valve on a water supply pipeline between the low-temperature surface cooling section and the second unit;
closing a valve on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
closing a valve on a water return pipeline between the first unit and the second unit;
and opening a valve on a water supply pipeline between the second unit and the high-temperature surface cooling section.
In a second aspect of the present invention, a dual cold source control method is provided, which is applied to a dual cold source control system, and is characterized in that the method includes:
receiving an instruction;
when a first operation mode instruction is received, the valve is adjusted to be in a first operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the low-temperature water working condition;
when a second operation mode instruction is received, the valve is adjusted to be in a second operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the high-temperature water working condition.
In a third aspect of the present invention, there is provided a dual cold source control apparatus, comprising:
a dual cold source control system as described above.
Compared with the prior art, the technical scheme of the invention has the following advantages or beneficial effects:
1. the coil pipes of the low-temperature surface cooling section and the high-temperature surface cooling section are connected in series, when the system operates in a low-temperature water working condition, the coil pipes of the two surface cooling sections can be used, and the problem that the high-temperature coil pipes are idle is solved;
2. the second unit can operate low temperature water operating mode and also can operate high temperature water operating mode, and when the system operation low temperature water operating mode, the unit operation that makes originally be under the full load state is at partial load state, compares this novel two cold source system of two cold source systems of tradition and is more energy-conserving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a dual cold source system according to an embodiment of the present disclosure;
fig. 2 is a schematic view of a dual-cold-source fresh air end combined air conditioning unit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a conventional dual cold source system according to an embodiment of the present disclosure;
fig. 4 is a flowchart of a dual cold source control method according to an embodiment of the present application;
reference numerals:
in fig. 1, 1-second unit, 2-valve, 3-first unit, 4-valve, 5-valve, 6-valve, 7-valve, 8-valve, 9-end combined air conditioning unit, 10-water pump, 11-water pump;
in FIG. 2, 1-fresh air section, 2-coarse filtration section, 3-high temperature surface cooling section, 4-mixed air section, 5-blower section, 6-flow equalizing section, 7-low temperature surface cooling section, 8-air outlet section, 9-box body;
in fig. 3, 1 is a high-temperature water unit, and 2 is a low-temperature water unit.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and embodiments, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and various features in the embodiments of the present application can be combined with each other without conflict, and the formed technical solutions are all within the scope of protection of the present application.
Known from the background art, in traditional two cold source systems, low temperature water in its low temperature water unit only can flow through low temperature table cold section, high temperature water in the high temperature water unit only can flow through high temperature table cold section, when two cold source systems only run low temperature system, the coil pipe of high temperature table cold section is in idle state, will cause the wasting of resources of certain degree, and in entire system's operation, the rate of utilization of high temperature cold source is lower, the live time is short, the condition that the coil pipe of high temperature table cold section is in long-term idle state will appear.
In view of the above, the invention provides a novel double-cold-source energy-saving control system, which effectively utilizes a coil pipe of a low-temperature meter cold section and a coil pipe of a high-temperature meter cold section, and simultaneously improves the conditions that units are opened by one unit and operate in a full-load state in the prior art when the novel double-cold-source system operates in a low-temperature water working condition, so that the two units operate simultaneously and operate in a partial load state, and compared with the traditional double-cold-source system, the novel double-cold-source system is more energy-saving.
Example one
Fig. 1 is a schematic diagram of a dual cold source system according to an embodiment of the present application, and as shown in fig. 1, the system according to the embodiment includes:
the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve;
the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve;
the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition.
Specifically, the first unit 3 is a low-temperature water unit, and the second unit 1 is a low/high-temperature water unit, wherein the first unit 3 operates in a low-temperature water condition, and the second unit 1 can operate in a low-temperature water condition and a high-temperature water condition. The solid line connected between the unit (the first unit 3 or the second unit 1) and the terminal combined type air conditioning unit 9 is represented as a water supply pipeline, and the dotted line is represented as a water return pipeline, and water flowing out of the unit (the first unit 3 or the second unit 1) flows into the terminal combined type air conditioning unit 9 through the water supply pipeline and then flows back to the unit (the first unit 3 or the second unit 1) through the water return pipeline.
It should be noted that the valve includes: valve 2, valve 4, valve 5, valve 6, valve 7, valve 8, wherein, valve 2 is located the return water pipeline between second unit 1 and the first unit 3, valve 4 is located the return water pipeline between first unit 3 and the low temperature surface cooling section, valve 5 is located the water supply pipeline between first unit 3 and the low temperature surface cooling section, valve 6 is located the water supply pipeline between low temperature surface cooling section and the high temperature surface cooling section, valve 7 is located the water supply pipeline between second unit 1 and the low temperature surface cooling section, valve 8 is located the water supply pipeline between second unit 1 and the high temperature surface cooling section. The water pump includes: a water pump 10 and a water pump 11, wherein the water pump 10 is located on the water return pipe between the first unit 3 and the terminal combined air-conditioning unit 9, and the water pump 11 is located on the water return pipe between the second unit 1 and the terminal combined air-conditioning unit 9.
It should be further noted that the first unit 3 and the second unit 1 are both frequency converter units, and the frequency converter units have the advantages of higher efficiency, energy saving and the like when operating at a partial load rate; the water pump acts on the flow starting force of water in the system, low-temperature water/high-temperature water in the system flows to the corresponding module and flows back to the corresponding unit under the driving of the water pump, and a valve on a pipeline can be opened or closed so as to allow or prevent the circulation of the low-temperature water/high-temperature water.
In some embodiments, the valve is an electric butterfly valve.
It should be noted that the valves are electrically controllable and can be intelligently controlled by a computer program.
It should be further noted that the opening and closing of the valve can be intelligently controlled by a computer program, and the valve can be controlled independently or can be controlled uniformly in a group form according to actual requirements.
Fig. 2 is a schematic view of a dual-cold-source fresh air terminal combined air conditioning unit provided in an embodiment of the present application, as shown in fig. 2:
in some embodiments, an end unit air conditioning unit, comprising:
the device comprises a fresh air section 1, a coarse effect filtering section 2, a high temperature surface cooling section 3, an air mixing section 4, a blower section 5, a flow equalizing section 6, a low temperature surface cooling section 7, an air outlet section 8 and a box body 9;
wherein, the fresh air section 1, the coarse filter section 2, the high-temperature surface cooling section 3, the air mixing section 4, the air blower section 5, the flow equalizing section 6, the low-temperature surface cooling section 7 and the air outlet section 8 are connected in sequence and are arranged in the box body 9;
the low-temperature surface cooling section 7 is connected with the high-temperature surface cooling section 3 through a water supply pipeline provided with a valve.
In fig. 2, it is to be noted that: the fresh air section 1 is an inlet of fresh air in the tail end combined air conditioning unit; the coarse filtering section 2 is used for filtering fresh air; high-temperature water is fed into the high-temperature surface cooling section 3 and is used for precooling fresh air; the air mixing section 4 is used for mixing fresh air and return air; the air feeder section 5 is used for providing power for the fresh air entering a target place; the flow equalizing section 6 is used for enabling blown air to uniformly flow out; the low-temperature surface cooling section 7 is used for removing low-temperature water for dehumidification and refrigeration; the air outlet section 8 is an air outlet section of the tail end combined type air conditioning unit.
It is further noted that, in fig. 2: the coil pipe of the low-temperature surface cooling section 7 is connected with the coil pipe of the high-temperature surface cooling section 3 in a series connection mode, the low-temperature surface cooling section 7 and the high-temperature surface cooling section 3 can be connected in series in a mode of additionally arranging a water supply pipeline between the low-temperature surface cooling section 7 and the high-temperature surface cooling section 3 (specifically, the water supply pipeline where the valve 6 is located in fig. 1 can be seen), and the low-temperature surface cooling section 7 and the high-temperature surface cooling section 3 can also be connected in series in other modes without limitation.
It should be further noted that the low temperature surface cooling section referred to in the following of the present embodiment can be referred to as the low temperature surface cooling section 7 in fig. 2, and the high temperature surface cooling section referred to in the following of the present embodiment can be referred to as the high temperature surface cooling section 3 in fig. 2.
In some embodiments, when the system is operating in a low temperature water condition, the first unit 3 is operating in a low temperature water condition and the second unit 1 is operating in a low temperature water condition.
Fig. 3 is a schematic diagram of a conventional dual cold source system according to an embodiment of the present disclosure, and as shown in fig. 3, in the conventional dual cold source system, low-temperature water from the low-temperature unit 2 only flows through the low-temperature surface-cooling section, and high-temperature water from the high-temperature unit 1 only flows through the high-temperature surface-cooling section. When the system only operates a low-temperature system, the coil pipe of the cold section of the high-temperature meter is in an idle state, so that waste is caused; and in the operation of the whole system, the utilization rate of the high-temperature cold source is low, the service time is short, and the coil pipe of the high-temperature surface cooling section is in a long-term idle state.
As shown in fig. 1:
and second unit 1 in this system can operate low temperature water operating mode, also can operate high temperature water operating mode, when this system operation low temperature water operating mode, first unit 3 operation low temperature water operating mode, and simultaneously, second unit 1 also operates low temperature water operating mode, the condition that only opens a unit and operate under full load state among the prior art has been improved, make two units (first unit 3 and second unit 1) move simultaneously and all operate under partial load, compare two cold source systems of tradition this novel two cold source systems more energy-conserving.
In some embodiments, the first unit 3 operates at a low temperature water condition and the second unit 1 operates at a low temperature water condition, including:
adjusting the valve to a first operating mode;
after the water in the first unit 3 and the water in the second unit 1 are merged, the merged water flows through the low-temperature surface cooling section and the high-temperature surface cooling section of the tail end combined type air conditioning unit 9 first and then flows back to the first unit 3 and the second unit 1.
Specifically, after the low-temperature water in the first unit 3 and the low-temperature water in the second unit 1 are converged by the water supply pipeline, the low-temperature water flows through the low-temperature surface cooling section of the terminal combined air-conditioning unit 9 to perform heat exchange, the high-temperature water after the heat exchange flows through the high-temperature surface cooling section of the terminal combined air-conditioning unit 9, and the high-temperature water flowing out of the high-temperature surface cooling section flows back to the first unit 3 and the second unit 1 through the water return pipeline.
It should be noted that, in the first operation mode, the first unit 3 operates under the low-temperature water condition, and meanwhile, the second unit 1 also operates under the low-temperature water condition, and the valve is in the first operation mode.
In some embodiments, adjusting the valve to a first mode of operation comprises:
opening a valve 5 on a water supply pipeline between the first unit 3 and the low-temperature surface cooling section;
opening a valve 6 on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
opening a valve 7 on a water supply pipeline between the second unit 1 and the low-temperature surface cooling section;
opening a valve 2 on a water return pipeline between the second unit 1 and the first unit 3;
closing a valve 8 on a water supply pipeline between the second unit 1 and the high-temperature surface cooling section;
the valve 4 on the return line between the first unit 3 and the cold end of the cryogenic meter is closed.
Specifically, when the system is used for operating a low-temperature water working condition, the first unit 3 and the second unit 1 are started to work simultaneously. Opening a valve 5 on a water supply pipeline between a first unit 3 and a low-temperature surface cooling section, opening a valve 7 on the water supply pipeline between a second unit 1 and the low-temperature surface cooling section, closing a valve 8 on the water supply pipeline between the second unit 1 and a high-temperature surface cooling section, after low-temperature water in the first unit 3 and low-temperature water in the second unit 1 are converged by the water supply pipeline, performing heat exchange by the low-temperature surface cooling section of a terminal combined air-conditioning unit 9, opening a valve 6 on the water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section, closing a valve 4 on a water return pipeline between the low-temperature surface cooling section and the first unit 3, allowing high-temperature water after heat exchange to flow through the high-temperature surface cooling section of the terminal combined air-conditioning unit 9 by the water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section, opening a valve 2 on the water return pipeline between the second unit 1 and the first unit 3, and high-temperature water flowing out of the high-temperature surface cooling section flows back to the first unit 3 and the second unit 1 through a water return pipeline.
In some embodiments, the low temperature water is 9-16 ℃ water, and the high temperature water is 16-22 ℃ water.
In some embodiments, when the system operates both in the low temperature water condition and the high temperature water condition, the first unit 3 operates in the low temperature water condition and the second unit 1 operates in the high temperature water condition.
In some embodiments, the first unit 3 operates at a low temperature water condition and the second unit 1 operates at a high temperature water condition, including:
adjusting the valve to a second operating mode;
the low-temperature water in the first unit 3 directly flows back to the first unit 3 after passing through the low-temperature surface cooling section of the tail end combined air conditioning unit 9;
the high-temperature water in the second unit 1 directly flows back to the second unit 1 after passing through the high-temperature surface cooling section of the tail end combined type air conditioning unit 9.
It should be noted that, in the second operation mode, the first unit 3 operates under the low-temperature water condition, and meanwhile, the second unit 1 operates under the high-temperature water condition, and the valve is in the second operation mode.
In some embodiments, adjusting the valve to a second mode of operation comprises:
opening a valve 5 on a water supply pipeline between the first unit 3 and the low-temperature surface cooling section;
opening a valve 4 on a water return pipeline between the first unit 3 and the low-temperature meter cooling section;
closing a valve 7 on a water supply pipeline between the low-temperature surface cooling section and the second unit 1;
closing a valve 6 on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
closing a valve 2 on a water return pipeline between the first unit 3 and the second unit 1;
a valve 8 on the water supply pipe between the second unit 1 and the high temperature surface cooling stage is opened.
It should be noted that, when the first unit 3 operates under the low-temperature water condition, the valve 5 located on the water supply pipeline between the first unit 3 and the low-temperature surface cooling section is opened, the valve 7 located on the water supply pipeline between the low-temperature surface cooling section and the second unit 1 is closed, the low-temperature water in the first unit 3 flows through the low-temperature surface cooling section of the tail-end combined air conditioning unit 9 through the water supply pipeline to perform heat exchange, the valve 6 located on the water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section is closed, the valve 4 located on the water return pipeline between the first unit 3 and the low-temperature surface cooling section is opened, the valve 2 located on the water return pipeline between the first unit 3 and the second unit 1 is closed, and the high-temperature water after heat exchange flows back to the first unit 3 through the water return pipeline.
It should be further noted that, when the second unit 1 operates under the high-temperature water condition, the valve 7 located on the water supply pipeline between the second unit 1 and the low-temperature surface cooling section is closed, the valve 8 located on the water supply pipeline between the second unit 1 and the high-temperature surface cooling section is opened, the high-temperature water in the second unit 1 flows through the high-temperature surface cooling section of the tail-end combined air conditioning unit 9 through the water supply pipeline, the fresh air is pre-cooled, the valve 6 located on the water supply pipeline between the high-temperature surface cooling section and the low-temperature surface cooling section is closed, the valve 2 located on the water return pipeline between the first unit 3 and the second unit 1 is closed, and the treated high-temperature water flows back to the second unit 1 through the water return pipeline.
In some embodiments, when the system operates in the high temperature water condition, the second unit 1 operates in the high temperature water condition, and the first unit 3 is turned off.
In some embodiments, the second unit 1 operates in a high temperature water condition, and the first unit 3 is turned off, including:
adjusting the valve to a third operating mode;
the high-temperature water in the second unit 1 directly flows back to the second unit 1 after passing through the high-temperature surface cooling section of the tail end combined air conditioning unit 9;
the first set 3 is turned off.
Specifically, when the second unit 1 operates the high-temperature water working condition, the valve 7 on the water supply pipeline between the second unit 1 and the low-temperature surface cooling section is closed, the valve 8 on the water supply pipeline between the second unit 1 and the high-temperature surface cooling section is opened, the high-temperature water in the second unit 1 flows through the high-temperature surface cooling section of the tail-end combined air conditioning unit 9 through the water supply pipeline, the fresh air is pre-cooled, the valve 6 on the water supply pipeline between the high-temperature surface cooling section and the low-temperature surface cooling section is closed, the valve 2 on the water return pipeline between the first unit 3 and the second unit 1 is closed, and the treated high-temperature water flows back to the second unit 1 through the water return pipeline. The first unit 3 is closed, the valve 5 is closed, the valve 4 is closed, and the water pump 10 is turned off.
In some embodiments, when the system operates under the high-temperature water condition, the first unit 3 and the valve may also be set to other operation modes under the condition that the second unit 1 operates under the high-temperature water condition, which is not limited herein.
In some embodiments, the system further comprises a cooling system for cooling the water flowing back to the units (including the first unit 3 and the second unit 1) through the water return pipeline.
Specifically, the water flowing back to the unit through the water return pipeline flows into the cooling tower under the driving of the water pump, the water flowing into the cooling tower is cooled in the cooling tower, and the water treated by the cooling tower flows back to the corresponding unit under the driving of the water pump.
The embodiment discloses a double cold source control system, which comprises: the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve; the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve; the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition. The coil pipe with the cold section of low temperature table all effectively utilizes with the coil pipe of the cold section of high temperature table, and this novel two cold source system has improved only to open the condition of a unit and operation under full load state among the prior art when operation low temperature water operating mode simultaneously, makes two units (first unit 3 and second unit 1) move simultaneously and all move under the part load, compares traditional two cold source system this novel two cold source system more energy-conservingly.
Example two
Fig. 4 is a flowchart of a dual cold source control method according to an embodiment of the present application, and as shown in fig. 4, the method of this embodiment includes:
receiving an instruction;
when a first operation mode instruction is received, the valve is adjusted to be in a first operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the low-temperature water working condition;
when a second operation mode instruction is received, the valve is adjusted to be in a second operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the high-temperature water working condition.
In the dual cold source control method provided by this embodiment, an instruction is received, and a corresponding operating condition is operated according to the received instruction.
Specifically, receiving an instruction, and when receiving a first operation mode instruction, adjusting a valve to be in a first operation mode, and simultaneously operating the first unit and the second unit under the low-temperature water working condition; when a second operation mode instruction is received, the valve is adjusted to be in a second operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the high-temperature water working condition.
In some embodiments, the method further comprises:
and when a third operation mode instruction is received, the valve is adjusted to be in the third operation mode, the first unit is closed, and the second unit operates under the working condition of high-temperature water.
It should be noted that, when the third operation mode instruction is received, under the condition that the second unit operates under the high-temperature water condition, the first unit and the valve may also be set to other operation modes, which is not limited herein.
It should be further noted that, for specific descriptions of each step in the above-mentioned dual cold source control method, reference may be made to corresponding parts in the first embodiment, and details are not repeated herein.
EXAMPLE III
The present embodiment provides a dual cold source control apparatus, which is characterized in that the apparatus includes a dual cold source control system as described in the first embodiment, and details of the embodiment are not repeated herein.
In summary, the present application provides a system, a method and a device for controlling dual cold sources, the system includes: the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve; the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve; the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve; the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition. The coil pipes of the low-temperature surface cooling section and the high-temperature surface cooling section are connected in series, when the system operates in a low-temperature water working condition, the coil pipes of the two surface cooling sections can be used, and the problem that the high-temperature coil pipes are idle is solved; the second unit can operate low temperature water operating mode and also can operate high temperature water operating mode, and when the system operation low temperature water operating mode, the unit operation that makes originally be under the full load state is at partial load state, compares this novel two cold source system of two cold source systems of tradition and is more energy-conserving.
In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways, and the above-described method embodiments are only illustrative.
It should be further understood that the method or system disclosed in the embodiments of the present invention may be implemented in other ways. The method or system embodiments described above are merely illustrative, for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and apparatus according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, a segment, or a portion of a computer program, which comprises one or more computer programs for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures, or indeed, may be executed substantially concurrently, or in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer programs.
In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, apparatus or device comprising the element; if the description to "first", "second", etc. is used for descriptive purposes only, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated; in the description of the present invention, unless otherwise explicitly limited, the terms "water supply pipeline", "water return pipeline", "valve", "fresh air", "low temperature water", "high temperature water", "surface cooling section", etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solutions; in the description of the present invention, the terms "plurality" and "plurality" mean at least two unless otherwise specified.
Finally, it is noted that throughout the description of the present specification, references to the description of "one embodiment," "some embodiments," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and that the present invention is illustrative only and is not to be construed as limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A dual cold source control system, the system comprising:
the tail end combined air conditioning unit is connected with the first unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the tail end combined air conditioning unit is connected with the second unit through a water supply pipeline and a water return pipeline which are provided with a gate valve;
the water return pipeline connected with the first unit is connected with the water return pipeline connected with the second unit through a water return pipeline provided with a gate valve;
the water supply pipeline connected with the first unit is connected with the water supply pipeline connected with the second unit through the water supply pipeline provided with the gate valve;
the system is used for operating a low-temperature water working condition and/or a high-temperature water working condition, wherein the first unit is used for operating the low-temperature water working condition, and the second unit is used for operating the low-temperature water working condition or the high-temperature water working condition.
2. The system of claim 1, wherein the terminal modular air conditioning unit comprises:
the system comprises a fresh air section, a coarse effect filtering section, a high temperature surface cooling section, a mixed air section, an air blower section, a flow equalizing section, a low temperature surface cooling section, an air outlet section and a box body;
the fresh air section, the coarse effect filtering section, the high-temperature surface cooling section, the air mixing section, the air blower section, the flow equalizing section, the low-temperature surface cooling section and the air outlet section are connected in sequence and are arranged in the box body;
and the low-temperature surface cooling section is connected with the high-temperature surface cooling section through a water supply pipeline provided with a valve.
3. The system of claim 1, wherein when the system is operating in a low temperature water condition, the first unit is operating in a low temperature water condition and the second unit is operating in a low temperature water condition.
4. The system of claim 3, wherein the first unit operates at a low temperature water condition and the second unit operates at a low temperature water condition, comprising:
adjusting the valve to a first operating mode;
and after the water in the first unit and the water in the second unit are converged, the water flows through a low-temperature surface cooling section and a high-temperature surface cooling section of the tail end combined air conditioning unit first and then flows back to the first unit and the second unit.
5. The system of claim 4, wherein said adjusting said valve to a first mode of operation comprises:
opening a valve on a water supply pipeline between the first unit and the low-temperature surface cooling section;
opening a valve on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
opening a valve on a water supply pipeline between the second unit and the low-temperature surface cooling section;
opening a valve on a water return pipeline between the second unit and the first unit;
closing a valve on a water supply pipeline between the second unit and the high-temperature surface cooling section;
and closing a valve on a water return pipeline between the first unit and the low-temperature meter cooling section.
6. The system of claim 1, wherein when the system is operating in both a low temperature water condition and a high temperature water condition, the first unit is operating in a low temperature water condition and the second unit is operating in a high temperature water condition.
7. The system of claim 6, wherein the first unit operates at a low temperature water condition and the second unit operates at a high temperature water condition, comprising:
adjusting the valve to a second mode of operation;
the low-temperature water in the first unit directly flows back to the first unit after flowing through the low-temperature surface cooling section of the tail end combined air conditioning unit;
and the high-temperature water in the second unit directly flows back to the second unit after flowing through the high-temperature surface cooling section of the tail end combined air conditioning unit.
8. The system of claim 7, wherein said adjusting said valve to a second mode of operation comprises:
opening a valve on a water supply pipeline between the first unit and the low-temperature surface cooling section;
opening a valve on a water return pipeline between the first unit and the low-temperature surface cooling section;
closing a valve on a water supply pipeline between the low-temperature surface cooling section and the second unit;
closing a valve on a water supply pipeline between the low-temperature surface cooling section and the high-temperature surface cooling section;
closing a valve on a water return pipeline between the first unit and the second unit;
and opening a valve on a water supply pipeline between the second unit and the high-temperature surface cooling section.
9. A double-cold-source control method is applied to a double-cold-source control system and is characterized by comprising the following steps:
receiving an instruction;
when a first operation mode instruction is received, the valve is adjusted to be in a first operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the low-temperature water working condition;
when a second operation mode instruction is received, the valve is adjusted to be in a second operation mode, the first unit operates under the low-temperature water working condition, and the second unit operates under the high-temperature water working condition.
10. A dual cold source control apparatus, the apparatus comprising:
the dual cold source control system of any one of claims 1 to 8.
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