CN102589216B - Simultaneous air-conditioning energy conserving system and control method - Google Patents
Simultaneous air-conditioning energy conserving system and control method Download PDFInfo
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- CN102589216B CN102589216B CN201210081894.2A CN201210081894A CN102589216B CN 102589216 B CN102589216 B CN 102589216B CN 201210081894 A CN201210081894 A CN 201210081894A CN 102589216 B CN102589216 B CN 102589216B
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Abstract
The invention discloses a kind of simultaneous air-conditioning energy conserving system, comprise control system for heat pump, pressure sensor, temperature sensor, flow sensor, water circulating pump, the actual system using the functional areas composition of heat cold function, described control system for heat pump is connected to source heat pump heat sub-control system and function heating sub-control system, wherein said source heat pump heat sub-control system is connected with water circulating pump, valve and temperature sensor, described function heating sub-control system is connected with valve, pressure sensor, temperature sensor and liquid level sensor, wherein function heating sub-control system has pipeline and leads to functional areas, improve the comprehensive utilization ratio of the energy and the operating efficiency of Cooling and Heat Source equipment by Automated condtrol, utilize water-water heat pump unit while hot-water supply, will by absorbing and cooling temperature to cold feed to uses such as air-conditioning refrigeration systems, reduce energy resource consumption, user is facilitated to manage equipment.
Description
Technical field
The present invention relates to the control field of cold and heat supply, particularly a kind of energy conserving system and control method by carrying out Automatic Control and centralized management to water-water heat pump unit and supporting and relevant device thereof.
Background technology
The energy-conservation main flow direction having become current development, the energy how rational and efficient use is limited is the important development direction of air-conditioning technical, especially along with expanding economy, the number of the heavy construction such as hotel, office building increases rapidly, the demand of central air-conditioning is also increased thereupon, and its power-saving technology comes into one's own naturally day by day.
The design of central air-conditioning is normally foundation by peak load, but reality is along with the change in season, time, the actual using function district of heat cold, and its real work load can produce very large change.Central air conditioner system relates to the multinomial technical elements such as HVAC, plumbing and automatic control, uses in the course of work, need valve transfer and the adjustment of plurality of devices synthetic operation and cooperating equipment in system.Traditional control system only carries out predetermined control to system equipment in this technical elements, for needing the simultaneous air-conditioning system of collaborative work across technology, there is no ripe control system at present.And comprise at present cooling, heat supply each parameter control system for the regulable control of load, also being in a kind of is only content with funtion demand, and do not pay close attention to the state of energy consumption service efficiency, or only consider to reduce single equipment energy consumption, and do not focus on all devices system cloud gray model comprehensive energy consumption, cause overall operation efficiency to be not optimum state.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of energy conserving system and control method by carrying out Automatic Control and centralized management to water-water heat pump unit and supporting and relevant device thereof.
The technical solution adopted for the present invention to solve the technical problems is:
Simultaneous air-conditioning energy conserving system, comprise control system for heat pump, pressure sensor, temperature sensor, flow sensor, water circulating pump, the actual system using the functional areas composition of heat cold function, described control system for heat pump is connected to source heat pump heat sub-control system and function heating sub-control system, wherein said source heat pump heat sub-control system is connected with water circulating pump, valve and temperature sensor, described function heating sub-control system is connected with valve, pressure sensor, temperature sensor and liquid level sensor, wherein function heating sub-control system has pipeline and leads to functional areas.
The controlled circulatory system being convenient to detect is formed in order to make heat source side, described source heat pump heat sub-control system comprises the water source heat exchanger as thermal source, the source pump be made up of evaporator-condenser and the sub-control element group of source heat pump heat, refrigerating water pump is provided with between wherein said source pump and water source heat exchanger, the suction side of water source heat exchanger is provided with water source circulating pump, the water inlet end of described water source heat exchanger and water side are respectively arranged with water source heat exchange inflow temperature sensor and water source heat exchange leaving water temperature sensors, input between water source heat exchanger and source pump and output are respectively arranged with air-condition freezing supply water temperature sensor and air-condition freezing return water temperature sensor, described water source circulating pump, refrigerating water pump, water source heat exchange inflow temperature sensor, water source heat exchange leaving water temperature sensors, air-condition freezing supply water temperature sensor is connected with source heat pump heat sub-control system respectively with air-condition freezing return water temperature sensor.
The controlled circulatory system being convenient to detect is integrated in order to make functional areas each several part, described function heating sub-control system comprises constant temperature water tank, temperature changing water bank, heating heat exchanger and function and adds heater control element group, wherein be provided with hot water constant pressure pump between constant temperature water tank and source pump, heat cycles pump is provided with between temperature changing water bank and source pump, described constant temperature water tank, temperature changing water bank, heating heat exchanger have the pipeline leading to functional areas, and described heat cycles pump is connected with heating sub-control system.
Simultaneous air-conditioning energy conserving system control method, comprises the following steps:
The computer heating control of a, function heating sub-control system
1) when the inflow temperature of use side, functional areas is not enough, the heating function of opening function heating sub-control system, on the contrary then closing function heats the heating function of sub-control system;
2) when the leaving water temperature of functional areas heat source side is too high, tune up thermal source valve, otherwise then turn thermal source valve down;
The computer heating control of b, source heat pump heat sub-control system
1) when functional areas need heating, then open source pump, do not need heating then to stop source pump;
2) judge that whether leaving condenser water is normal, leaving water temperature is too high then reduces operating heat pump unit, and the too low then full-load run source pump of leaving water temperature, normally then maintains the statusquo constant.
In order to improve the efficiency of cooling further, described source pump is equipped with independent cooling equipment.
Described source pump operating procedure comprises:
1) when the opening of device of the independent cooling in functional areas, arbitration functions district, the need of heating, needs heating then to close thermal source releasing heat function, does not need heating then to close thermal source and discharges cold function;
2) after closedown thermal source discharges cold function, judge that whether leaving condenser water temperature is normal, leaving condenser water temperature is too high then opens thermal source releasing heat function, and leaving condenser water temperature is too low then closes thermal source releasing heat function, normally then maintains the statusquo constant;
3) when the device shutdown of the independent cooling of function, close thermal source releasing heat function, and judge evaporimeter leaving water temperature, when evaporimeter leaving water temperature is too high, closes thermal source and discharge cold function, when evaporimeter leaving water temperature is too low, open thermal source and discharge cold function, normally then maintain the statusquo constant.
As a preference, described independent cooling equipment comprises handpiece Water Chilling Units, water circulating pump, water tower.
In order to make full use of the cold that cold side provides, when described source pump cold side is had more than needed, utilizing cold-storage tank storage to deposit cold, opening thermal source heat transmission equipment completely discharge cold when the enough low and cold of freezing temperature all stores.
In order to make full use of the heat that hot side provides, described source pump hot side utilizes constant temperature water tank and temperature changing water bank to store heat when having more than needed, when hot water temperature is enough high, accumulation of heat is complete and open thermal source heat transmission equipment when not having other single cool equipment to have additional supply of cold and discharge heat.
The invention has the beneficial effects as follows: improve the comprehensive utilization ratio of the energy and the operating efficiency of Cooling and Heat Source equipment by Automated condtrol, utilize water-water heat pump unit while hot-water supply, will by absorbing and cooling temperature to cold feed to uses such as air-conditioning refrigeration systems, reduce energy resource consumption; User is facilitated to manage equipment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is that system architecture of the present invention connects block diagram;
Fig. 2 is application connection diagram of the present invention
Fig. 3 is the flow chart of the computer heating control of function of the present invention heating sub-control system;
Fig. 4 is the flow chart of the computer heating control of source heat pump heat sub-control system of the present invention;
Fig. 5 is the flow chart that source pump of the present invention is run.
Detailed description of the invention
With reference to Fig. 1.Simultaneous air-conditioning energy conserving system, comprise control system for heat pump 1, pressure sensor, temperature sensor, flow sensor, water circulating pump, the actual system using the functional areas 6 of heat cold function to form, wherein said control system for heat pump 1 is connected to source heat pump heat sub-control system 2 and function heating sub-control system 5, described source heat pump heat sub-control system 2 is connected with water circulating pump, valve and temperature sensor, and described function heating sub-control system 5 is connected with valve, pressure sensor, temperature sensor and liquid level sensor.Wherein the function of source heat pump heat sub-control system 2 is the work settings in control of heat source low-temperature receiver district, and function heating sub-control system 5 is for controlling the distribution of actual use heat cold, and both are by control system for heat pump 1 organic unity.Control system for heat pump 1 is made up of CPU, expansion module, analog output module, touch control panel, power switch, uninterrupted power source, auxiliary reclay, software, computer etc., it is the control command centre of energy-saving system of central air conditioner, unit, thermal source cold source equipment and control procedure are automatically adjusted and monitoring, comprises sensing element, perform and the control of governor motion.During refrigeration, the cold water from outside enters heat exchanger and indoor circulation air carries out heat exchange, air themperature is reduced, reaches the object of air conditioning; When heating, the hot water from outside enters heat exchanger and indoor circulation air carries out heat exchange, air themperature is raised, reaches the object of air conditioning.
With reference to Fig. 2.Described control system for heat pump 1 is connected to source heat pump heat sub-control system 2 and function heating sub-control system 5, wherein said source heat pump heat sub-control system 2 is heat cold core control portions of system, and function heating sub-control system 5 is system execution parts in the face of user.
Source heat pump heat sub-control system 2 is connected with water circulating pump, valve and temperature sensor, described source heat pump heat sub-control system 2 comprises as the water source heat exchanger 21 of thermal source, the source pump 22 be made up of evaporator-condenser and the sub-control element group 23 of source heat pump heat, the number of source pump 22 is determined as required, and connect according to parallel form, to avoid interfering with each other, the heat cold of the direct influential system of number of source pump 22 real work exports.Refrigerating water pump 32 is provided with between wherein said source pump 22 and water source heat exchanger 21, the suction side of water source heat exchanger 21 is provided with water source circulating pump 31, the water inlet end of described water source heat exchanger 21 and water side are respectively arranged with water source heat exchange inflow temperature sensor 41 and water source heat exchange leaving water temperature sensors 42, monitor the water inlet of water source heat exchanger 21, leaving water temperature respectively also sending a signal to the sub-control element group 23 of source heat pump heat.Input between water source heat exchanger 21 and source pump 22 and output are respectively arranged with air-condition freezing supply water temperature sensor 43 and air-condition freezing return water temperature sensor 44, monitor water supply, return water temperature that source pump 22 exports cold end respectively.Described water source circulating pump 31, refrigerating water pump 32, water source heat exchange inflow temperature sensor 41, water source heat exchange leaving water temperature sensors 42, air-condition freezing supply water temperature sensor 43 are connected with source heat pump heat sub-control system 2 respectively with air-condition freezing return water temperature sensor 44.
Function heating sub-control system 5 comprises constant temperature water tank 51, temperature changing water bank 52, heating heat exchanger 53 and function and adds heater control element group 54, wherein be provided with hot water constant pressure pump between constant temperature water tank 51 and source pump 22, heat cycles pump 33 is provided with between temperature changing water bank and source pump 22, described constant temperature water tank 51, temperature changing water bank 52, heating heat exchanger 53 have the pipeline leading to functional areas 6, and described heat cycles pump 33 is connected with heating sub-control system 5.
Native system design realizes simultaneous air-conditioning Automatic Control by control system for heat pump, also support sector's subset manual operation, can full-automatic switchover operation in turn.Automatically invoked stand-by equipment during device fails, and carry out corresponding combustion adjustment and send reporting to the police.Service data shows on computers and stores, and storing mode adopts database mode, and supports by LAN and modem in remote browse service data.System has the chart display of convenient the inquiry of historical data function and important operational factor intuitively, and supports to print and file output.
With reference to Fig. 3, Fig. 4, Fig. 5.Simultaneous air-conditioning energy conserving system control method comprises the following steps:
The computer heating control of a, function heating sub-control system 5
1) when functional areas 6 use the inflow temperature of side not enough, the heating function of opening function heating sub-control system 5, on the contrary then closing function heats the heating function of sub-control system 5;
2) when the leaving water temperature of functional areas 6 heat source side is too high, tune up thermal source valve, otherwise then turn thermal source valve down;
The computer heating control of b, source heat pump heat sub-control system 2
1) when functional areas 6 need heating, then open source pump 22, do not need heating then to stop source pump 22;
2) judge that whether leaving condenser water is normal, leaving water temperature is too high then reduces operating heat pump unit 22, and the too low then full-load run source pump of leaving water temperature 22, normally then maintains the statusquo constant.
Source pump 22 operating procedure comprises:
1) when the opening of device of the independent cooling in functional areas 6, arbitration functions district 6, the need of heating, needs heating then to close thermal source releasing heat function, does not need to heat then closedown thermal source and discharges cold function;
2) after closedown thermal source discharges cold function, judge that whether leaving condenser water temperature is normal, leaving condenser water temperature is too high then opens thermal source releasing heat function, and leaving condenser water temperature is too low then closes thermal source releasing heat function, normally then maintains the statusquo constant;
3) when the device shutdown of the independent cooling of function, close thermal source releasing heat function, and judge evaporimeter leaving water temperature, when evaporimeter leaving water temperature is too high, closes thermal source and discharge cold function, when evaporimeter leaving water temperature is too low, open thermal source and discharge cold function, normally then maintain the statusquo constant.
System supplies hot and cold amount according to the demand of each function, when outside is equipped with the equipment of independent cooling, first control system should meet heat supply, and notice opens independent cooling equipment 7 when heat supply meets cold deficiency, wherein cooling equipment 7 comprises the equipment for refrigerating function such as handpiece Water Chilling Units, water circulating pump, water tower separately.When system supplies multiple function cold (heat) source simultaneously, control system regulates supply temperature by the functional requirement of temperature peak, and after the function of peak demand terminates the use of heat (cold) source, the corresponding adjustment supply temperature of control system carrys out economize energy.
System only has refrigeration or the side in heating to reach the equilibrium of supply and demand usually when work, opposite side is then had more than needed; Cold-storage tank storage should be made full use of when cold side is had more than needed and deposit cold, only have when the low and cold of freezing temperature all store full after can open thermal source heat transmission equipment and discharge cold, constant temperature water tank and temperature changing water bank should be utilized to store heat when having more than needed in hot side, only have when hot water temperature is high, accumulation of heat complete and can open when not having other single cool equipment to have additional supply of cold thermal source heat transmission equipment discharge heat.
When real work, based on the system of Fig. 2, its operational mode is,
A, function heat sub-control system 5 after reception runs permission,
1) when functional areas 6 use side, comprise air-conditioning and domestic water when making the inflow temperature of use not enough, added the heating function of heater control element group 54 opening function heating sub-control system 5 by function, otherwise then closing function heats the heating function of sub-control system 5;
2) when the leaving water temperature of functional areas 6 heat source side is too high, add by function the valve that heater control element group 54 tunes up source pump 22 heat outputting water end (W.E.), otherwise then turn the valve of source pump 22 heat outputting water end (W.E.) down;
B, source heat pump heat sub-control system 2 reception run allow after,
1) when functional areas 6 need heating, then open source pump 22, do not need heating then to stop source pump 22;
2) judge that whether leaving condenser water is normal, leaving water temperature is too high then reduces operating heat pump unit 22, and the too low then full-load run source pump of leaving water temperature 22, normally then maintains the statusquo constant.
Source pump 22 operating procedure comprises:
1) when the opening of device of the independent cooling in functional areas 6, arbitration functions district 6, the need of heating, needs heating then to close the valve of source pump 22 release heat, does not need to heat the valve of then closing source pump 22 released cold quantity;
2) after closedown thermal source discharges cold function, judge that whether the leaving condenser water temperature of source pump 22 is normal by air-condition freezing supply water temperature sensor 43 and air-condition freezing return water temperature sensor 44, the too high valve then opening source pump 22 release heat of leaving condenser water temperature, the too low valve of then closing source pump 22 release heat of leaving condenser water temperature, normally then maintains the statusquo constant;
3) when independent cooling equipment 7 is closed, close the valve of source pump 22 release heat, and the evaporimeter leaving water temperature of source pump 22 is judged by air-condition freezing supply water temperature sensor 43 and air-condition freezing return water temperature sensor 44, when evaporimeter leaving water temperature is too high, close the valve of source pump 22 released cold quantity, when evaporimeter leaving water temperature is too low, opens the valve of source pump 22 released cold quantity, normally then maintain the statusquo constant.
Claims (2)
1. simultaneous air-conditioning energy conserving system, comprise control system for heat pump (1), pressure sensor, temperature sensor, flow sensor, water circulating pump, the actual system using the functional areas (6) of heat cold function to form, described control system for heat pump (1) is connected to source heat pump heat sub-control system (2) and function heating sub-control system (5), wherein said source heat pump heat sub-control system (2) is connected with water circulating pump, valve and temperature sensor, described function heating sub-control system is connected with valve, pressure sensor, temperature sensor and liquid level sensor, wherein function heating sub-control system (5) has pipeline and leads to functional areas (6), it is characterized in that: described source heat pump heat sub-control system (2) comprises the water source heat exchanger (21) as thermal source, the source pump (22) be made up of evaporator-condenser and the sub-control element group (23) of source heat pump heat, refrigerating water pump (32) is provided with between wherein said source pump (22) and water source heat exchanger (21), the suction side, water source of water source heat exchanger (21) is provided with water source circulating pump (31), the water inlet end at described water source heat exchanger (21) and water side are respectively arranged with water source heat exchange inflow temperature sensor (41) and water source heat exchange leaving water temperature sensors (42), source pump (22) input between water source heat exchanger (21) and source pump (22) and source pump (22) output are respectively arranged with air-condition freezing supply water temperature sensor (43) and air-condition freezing return water temperature sensor (44), described water source circulating pump (31), refrigerating water pump (32), water source heat exchange inflow temperature sensor (41), water source heat exchange leaving water temperature sensors (42), air-condition freezing supply water temperature sensor (43) is connected with source heat pump heat sub-control system (2) respectively with air-condition freezing return water temperature sensor (44), described function heating sub-control system (5) comprises constant temperature water tank (51), temperature changing water bank (52), heating heat exchanger (53) and function add heater control element group (54), wherein be provided with hot water constant pressure pump between constant temperature water tank (51) and source pump (22), heat cycles pump (33) is provided with between temperature changing water bank and source pump (22), described constant temperature water tank (51), temperature changing water bank (52), heating heat exchanger (53) has the pipeline leading to functional areas (6), described heat cycles pump (33) and function heat sub-control system (5) and are connected.
2. simultaneous air-conditioning energy conserving system control method, is characterized in that, comprises the following steps:
The computer heating control of a, function heating sub-control system (5)
1) when functional areas (6) use the inflow temperature of side not enough, the heating function of opening function heating sub-control system (5), on the contrary then closing function heats the heating function of sub-control system (5);
2) when the leaving water temperature of functional areas (6) heat source side is too high, tune up thermal source valve, otherwise then turn thermal source valve down;
The computer heating control of b, source heat pump heat sub-control system (2)
1) when functional areas (6) need heating, then open source pump (22), heating is not needed then to stop source pump (22), described source pump (22) is equipped with independent cooling equipment (7), described independent cooling equipment (7) comprises handpiece Water Chilling Units, water circulating pump, water tower, described source pump (22) operating procedure comprises
1a) when the opening of device of functional areas (6) independent cooling, arbitration functions district (6), the need of heating, need heating then to close thermal source releasing heat function, do not need to heat then closedown thermal source and discharge cold function;
1b) close after thermal source discharges cold function, judge that whether leaving condenser water temperature is normal, leaving condenser water temperature is too high then opens thermal source releasing heat function, and leaving condenser water temperature is too low then closes thermal source releasing heat function, normally then maintains the statusquo constant;
1c) when the device shutdown of the independent cooling of function, close thermal source releasing heat function, and judge evaporimeter leaving water temperature, when evaporimeter leaving water temperature is too high, closes thermal source and discharge cold function, when evaporimeter leaving water temperature is too low, open thermal source and discharge cold function, normally then maintain the statusquo constant
Utilize cold-storage tank storage to deposit cold when 1d) described source pump (22) cold side is had more than needed, open thermal source heat transmission equipment completely discharge cold when the enough low and cold of freezing temperature all stores
2) judge that whether leaving condenser water is normal, leaving water temperature is too high then reduces operating heat pump unit (22), and the too low then full-load run source pump of leaving water temperature (22), normally then maintains the statusquo constant.
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| CN201210081894.2A CN102589216B (en) | 2012-03-26 | 2012-03-26 | Simultaneous air-conditioning energy conserving system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210081894.2A CN102589216B (en) | 2012-03-26 | 2012-03-26 | Simultaneous air-conditioning energy conserving system and control method |
Publications (2)
| Publication Number | Publication Date |
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| CN102589216A CN102589216A (en) | 2012-07-18 |
| CN102589216B true CN102589216B (en) | 2015-12-16 |
Family
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485961B (en) * | 2015-10-28 | 2018-10-09 | 沃姆环境设备启东有限公司 | The special cold and hot automatic control heat pump in domain |
| CN110231841B (en) * | 2019-04-23 | 2021-11-09 | 中国移动通信集团内蒙古有限公司 | Cold source system control method, device and equipment and computer storage medium |
| CN114872446B (en) * | 2022-04-12 | 2023-03-28 | 东南大学 | Energy storage heat recovery system of thermal printer group |
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| CN1534255A (en) * | 2003-03-27 | 2004-10-06 | 徐宝安 | New type multifunctional virtuous circle air conditioner |
| CN101235993A (en) * | 2008-03-06 | 2008-08-06 | 林贤华 | Four pipe heating pump, hot water three-purpose central air-conditioning system |
| CN102147171A (en) * | 2011-04-07 | 2011-08-10 | 河海大学常州校区 | Energy-saving heating and refrigerating integrated system |
| CN202008252U (en) * | 2010-05-25 | 2011-10-12 | 北京国电恒嘉科贸有限公司 | Machine room air conditioner utilizing underground water source heat pump |
| CN202613835U (en) * | 2012-03-26 | 2012-12-19 | 中国港中旅集团公司 | Simultaneous cold and heat supply energy-saving system |
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2012
- 2012-03-26 CN CN201210081894.2A patent/CN102589216B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS54143948A (en) * | 1978-04-28 | 1979-11-09 | Mcquay Perfex Inc | Controller for heat recovery type refrigerating system |
| CN1534255A (en) * | 2003-03-27 | 2004-10-06 | 徐宝安 | New type multifunctional virtuous circle air conditioner |
| CN101235993A (en) * | 2008-03-06 | 2008-08-06 | 林贤华 | Four pipe heating pump, hot water three-purpose central air-conditioning system |
| CN202008252U (en) * | 2010-05-25 | 2011-10-12 | 北京国电恒嘉科贸有限公司 | Machine room air conditioner utilizing underground water source heat pump |
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Also Published As
| Publication number | Publication date |
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| CN102589216A (en) | 2012-07-18 |
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