CN112628888B - Hotel central air-conditioning energy-saving system based on wireless - Google Patents
Hotel central air-conditioning energy-saving system based on wireless Download PDFInfo
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- CN112628888B CN112628888B CN202011495557.9A CN202011495557A CN112628888B CN 112628888 B CN112628888 B CN 112628888B CN 202011495557 A CN202011495557 A CN 202011495557A CN 112628888 B CN112628888 B CN 112628888B
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The invention relates to a wireless-based hotel central air-conditioning energy-saving system, which comprises an air-cooled heat pump unit, a heat pump unit and a control unit, wherein the air-cooled heat pump unit is used for generating cold and heat and providing a cold source or a heat source for the system; a fan coil unit installed indoors for releasing cold or heat to a desired indoor space to adjust temperature; the air treatment unit is used for conveying cold energy or heat energy generated by the air-cooled heat pump unit to the fan coil for exchange and then returning to the air-cooled heat pump unit, and a temperature sensor is arranged in the air treatment unit and used for detecting the temperature of the air treatment unit when the air treatment unit is transmitted to the fan coil; and the central control unit is respectively connected with the air-cooled heat pump unit, the fan coil and the air treatment unit and is used for adjusting the working parameters of the air-cooled heat pump unit, the fan coil and the air treatment unit.
Description
Technical Field
The invention relates to the technical field of energy conservation, in particular to a wireless-based energy-saving system for a hotel central air conditioner.
Background
At present, the management and control of a central air conditioner become an important component of a building automatic control system, the centralized management and control of main equipment such as a fresh air fan, an air conditioner and the like can be generally realized, but an independent control mode is still adopted for terminal equipment such as a fan coil and the like, the information such as control targets, operation parameters, states and the like of the terminal equipment is not included in the monitoring of the air conditioning system, and the fan coil is just the terminal equipment with the largest quantity in the central air conditioning system, so that the energy consumption of the system is directly influenced. Because the unified management of the terminal equipment according to the temperature in the indoor and public areas can not be realized, the phenomena of unreasonable indoor temperature control and improper operation mode setting are common, and huge energy waste is caused.
Therefore, the following problems generally exist in the prior art: the problem of adjusting the terminal equipment according to the temperature in the indoor area and the public area respectively cannot be realized.
Disclosure of Invention
Therefore, the invention provides a wireless-based hotel central air-conditioning energy-saving system which is used for solving the problem that the prior art can not respectively adjust the terminal equipment of indoor and public areas according to the temperature.
In order to achieve the above objects, the present invention provides a wireless-based energy saving system for central air conditioners in hotels, comprising,
the air-cooled heat pump unit is used for generating cold and heat and providing a cold source or a heat source for the system;
the fan coil is arranged indoors and used for releasing cold or heat to a required indoor space to adjust the temperature, and comprises a motor, a temperature detector, a solenoid valve and a temperature controller, wherein the motor is used for adjusting the wind speed of the fan coil, the temperature detector is used for detecting the indoor temperature, the solenoid valve is used for adjusting the cold of the fan coil, and the temperature controller is used for adjusting the temperature of the space where the fan coil is located;
the air treatment unit is used for conveying cold energy or heat energy generated by the air-cooled heat pump unit to the fan coil for exchange and then returning to the air-cooled heat pump unit, and a temperature sensor is arranged in the air treatment unit and used for detecting the temperature of the air treatment unit when the air treatment unit is transmitted to the fan coil;
the central control unit is respectively connected with the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and is used for receiving data transmitted by the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and adjusting working parameters of the data;
an air-cooled heat pump unit working parameter matrix P and a fan coil working parameter matrix W are preset in the central control unit, and for the air-cooled heat pump unit working parameter matrix P (P1, P2 and P3 … Pn), P1 represents the working parameters of a first preset air-cooled heat pump unit, P2 represents the working parameters of a second preset air-cooled heat pump unit, P3 represents the working parameters of a third preset air-cooled heat pump unit, and Pn represents the working parameters of an nth preset air-cooled heat pump unit;
for a fan coil working parameter matrix group W (W1, W2 and W3 … Wn), wherein W1 represents a first preset fan coil working parameter matrix, W2 represents a second preset fan coil working parameter matrix, W3 represents a third preset fan coil working parameter matrix, and Wn represents an nth preset fan coil working parameter matrix;
the central control unit determines working parameters Wk of a motor and an electromagnetic valve of the fan coil according to a difference value between an indoor temperature Ts at which the indoor fan coil is detected by the temperature detector and a temperature Tx regulated by the temperature controller, and determines working parameters Pi of the air-cooled heat pump unit according to a difference value between a temperature Tk and a temperature Tx, which are detected by the temperature sensor and used for transmitting cold or heat generated in the air processing unit to the fan coil;
in the system operation process, the temperature detector detects the indoor temperature Ts where an indoor fan coil is located in real time, when the system operates in a preset time t1 range, and Ts is Tx, the fan coil stops working, when the system operates to a preset time t1, Ts is not Tx, the central control unit adjusts the working parameters of the air-cooled heat pump unit Pi and the fan coil Wk according to the difference Tsc between the real-time Ts and Tx, when Ts is Tx, the fan coil stops working, when the difference between Ts and Tx is a, the fan coil operates according to the preset working parameters, when Ts is Tx, the fan coil stops working, and the temperature controller is turned off after the fan coil stops working;
the central control unit adjusts the temperature of the space where the common fan coil is located, and the central control unit adjusts the working parameters of the common fan coil and the air cooling and heating pump unit according to the difference value between the temperature Gs of the space where the common fan coil is located and the temperature G0 of the preset common space.
Further, for the nth fan coil working parameter matrix group Wn, Wn (D, C), wherein D represents a preset working parameter matrix of the motor, and C represents a preset working parameter matrix of the electromagnetic valve;
an operating parameter matrix D (D1, D2 and D3 … Dn) of the motor, wherein D1 represents a first preset operating parameter of the motor, D2 represents a second preset operating parameter of the motor, D3 represents a third preset operating parameter of the motor, and Dn represents an nth preset operating parameter of the motor;
and an operating parameter matrix C (C1, C2 and C3 … Cn) of the solenoid valves, wherein C1 represents a first preset operating parameter of the solenoid valves, C2 represents a second preset operating parameter of the solenoid valves, C3 represents a third preset operating parameter of the solenoid valves, and Cn represents an nth preset operating parameter of the solenoid valves.
Furthermore, the fan coil comprises an indoor fan coil and a public fan coil, the central control unit adjusts the indoor fan coil according to the difference Tc between the temperature Tx adjusted by the temperature controller corresponding to the indoor fan coil and the indoor temperature Ts where the indoor fan coil is located,
when Tc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W1, selects and adjusts D1 from W1 to be the current working parameter of the indoor fan coil motor, and selects and adjusts C1 to be the current working parameter of the indoor fan coil electromagnetic valve;
when T1 is more than Tc and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W2, selects and adjusts D2 from W2 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C2 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T2 is more than Tc and less than or equal to T3, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W3, selects and adjusts D3 from W3 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C3 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T (n-1) < Tc and not more than Tn, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be Wn, selects and adjusts Dn from Wn to be the working parameter of the current indoor fan coil motor, and selects and adjusts Cn to be the working parameter of the current indoor fan coil electromagnetic valve.
Further, after the central control unit determines the working parameters of the indoor fan coil, the central control unit determines the working parameters of the air-cooled heat pump unit according to the comparison between the temperature Tk when the cold or heat generated in the air handling unit is transmitted to the fan coil and the difference Tc between the temperature Tx and the temperature Tx adjusted by the temperature controller,
when Tcc is less than or equal to T1, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P1;
when T1 is more than Tcc and is less than or equal to T2, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P2;
when T2 is more than Tcc and is less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P3;
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to Pn.
Further, when the system operation time reaches t1, Ts ≠ Tx, the central control unit adjusts the working parameters of the air-cooled heat pump unit Pi and the fan coil Wk according to the difference value Tsc between the real-time Ts and Tx,
when Tsc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the fan coil to be W (k + 1);
when the Tsc is more than T1 and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the fan coil to be W (k + 2);
when T2 is more than Tcc and less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 1);
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 2).
Further, if Ts is equal to Tx, the fan coil stops working, until a difference value between Ts and Tx is a, the fan coil operates within t1 according to the operating parameter operating time of W1, and Ts is equal to Tx, the fan coil stops working, and if the fan coil operates to t1 according to the operating parameter operating time of W1, and Ts is equal to Tx, the central control unit adjusts the operating parameters of the air cooling and heating pump unit Pi and the fan coil Wk according to the real-time difference Tsc between Ts and Tx until Ts is equal to Tx, and the central control unit circulates to the indoor temperature controller to be closed.
Furthermore, a plurality of temperature detectors are arranged in the space where the common fan coil is located to form a common fan coil temperature detector matrix G (G1, G2 and G3 … Gn), wherein G1 represents a first preset temperature detector, G2 represents a second preset temperature detector, G3 represents a third preset temperature detector, and Gn represents an nth preset temperature detector; and the central control unit determines the space temperature Gs corresponding to the common fan coil, wherein the Gs is (G1+ G2+ G3+ … + Gn)/n.
Further, the central control unit adjusts the common fan coil according to the difference value between the temperature Gs of the space where the common fan coil is located and the temperature G0 of the preset common space, and if Gs is G0, the common fan coil stops working;
if the difference between Gs and G0 is b, the common fan coil stops working within a preset time t2 according to the working parameter operation time of W2, and when Gs is G0, the difference between next Gs and G0 is b, the common fan coil operates according to the working parameter of W2, and the system is closed in a circulating mode.
Further, if the difference between Gs and G0 is b, when the common fan coil operates according to the operating parameters of W2 to a preset time t2, and Gs is not equal to G0, the air-cooled heat pump unit Pi is adjusted to be P (i +1), the common fan coil is adjusted to be W3, until Gs is equal to G0, the common fan coil stops operating, the difference between Gs and G0 is b next time, and the common fan coil operates according to the operating parameters of W3 and the operating parameters of the air-cooled heat pump unit P (i +1), and the system is cycled to be closed.
Further, in the process of adjusting the fan coil and the air cooling and heating pump unit of the system, if the current working parameters of the fan coil and the air cooling and heating pump unit are the maximum values and the current working parameters of the fan coil and the air cooling and heating pump unit are still required to be adjusted, the current working parameters of the fan coil and the air cooling and heating pump unit are used as the adjusted working parameters.
Compared with the prior art, the hotel central air-conditioning energy-saving system based on wireless communication has the advantages that the hotel central air-conditioning energy-saving system based on wireless communication comprises an air-cooled heat pump unit, a fan coil unit, an air processing unit and a central control unit, the central control unit determines working parameters Wk of a motor and an electromagnetic valve of the fan coil unit according to a difference value between an indoor temperature Ts of the indoor fan coil unit and a temperature Tx regulated by a temperature controller, and determines working parameters Pi of the air-cooled heat pump unit according to a difference value between Tk and Tx, the temperature detector detects the indoor temperature Ts of the indoor fan coil unit in real time in the operation process of the system, when the system operates within a preset time t1 range, and Ts is Tx, the fan coil unit stops operating, and when the system operates to a preset time t1, Ts is not equal to Tx, the central control unit detects the working parameters of the air-cooled heat pump unit Pi and the fan coil unit Wk according to a difference value c between the real-time Ts and Tx The fan coil is adjusted until Ts is Tx, the fan coil stops working, the difference between Ts and Tx is a, the fan coil runs according to preset working parameters, and when Ts is Tx, the fan coil stops working and circulates to the temperature controller to be closed, so that the space where the indoor fan coil is located can reach the required temperature from the room temperature within a certain time, comfortable experience is brought to people, meanwhile, the motor and the electromagnetic valve of the indoor fan coil are adjusted according to the temperature, the working efficiency of the system is improved, the energy loss is reduced, and the purpose of energy conservation is achieved.
Particularly, a plurality of temperature detectors are arranged in the space where the common fan coil is located to form a common fan coil temperature detector matrix G, the central control unit compares Gs with the temperature G0 of the space where the preset common fan coil is located for the temperature Gs corresponding to the common fan coil, if Gs is G0, no adjustment is needed, if Gs is G0, the central control unit operates the common fan coil according to the working parameters of W2 when detecting that the difference between Gs and G0 is b, the operation time is within t2, if Gs is G0, the common fan coil stops operating, and when the difference between Gs and G0 is b next time, the common fan coil operates according to the working parameters of W2, the system is circulated to be shut down, the difference between the temperature detected in the space where the common fan coil is located and the preset temperature is determined, and the working parameters of the system are adjusted according to the difference, further achieving the purpose of energy saving.
Furthermore, the invention gradually adjusts the temperature of the human body by setting the adjusting process of the fan coil and the air-cooled heat pump unit, improves the comfort level of the system, adjusts the working parameters of the system according to the combination of the room temperature, the preset temperature to be reached and the temperature transmitted to the fan coil by the air handling unit in the adjusting process by considering the influence of the adjusting time, and carries out power limitation on the system by combining the time limitation, so that the system can reach the temperature within the preset time while meeting the requirement and running at the minimum power, and further improves the energy-saving effect.
Drawings
Fig. 1 is a schematic structural diagram of a wireless hotel central air-conditioning energy-saving system according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides a wireless-based energy saving system for central air-conditioning of hotels, comprising,
the air-cooled heat pump unit is used for generating cold and heat and providing a cold source or a heat source for the system;
the fan coil is arranged indoors and used for releasing cold or heat to a required indoor space to adjust the temperature, and comprises a motor, a temperature detector, a solenoid valve and a temperature controller, wherein the motor is used for adjusting the wind speed of the fan coil, the temperature detector is used for detecting the indoor temperature, the solenoid valve is used for adjusting the cold of the fan coil, and the temperature controller is used for adjusting the temperature of the space where the fan coil is located;
the air treatment unit is used for conveying cold energy or heat energy generated by the air-cooled heat pump unit to the fan coil for exchange and then returning to the air-cooled heat pump unit, and a temperature sensor is arranged in the air treatment unit and used for detecting the temperature of the air treatment unit when the air treatment unit is transmitted to the fan coil;
and the central control unit is respectively connected with the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and is used for receiving data transmitted by the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and adjusting working parameters of the data.
Specifically, in the embodiment of the present invention, a fan coil operating parameter matrix group W (W1, W2, W3 … Wn) is preset in the central control unit, where W1 represents a first preset fan coil operating parameter matrix, W2 represents a second preset fan coil operating parameter matrix, W3 represents a third preset fan coil operating parameter matrix, and Wn represents an nth preset fan coil operating parameter matrix.
Specifically, in the embodiment of the invention, for the nth fan coil working parameter matrix group Wn, Wn (D, C), D represents a preset working parameter matrix of the motor, and C represents a preset working parameter matrix of the electromagnetic valve.
Specifically, in the embodiment of the present invention, an operating parameter matrix D (D1, D2, D3 … Dn) of the motor is provided, where D1 represents a first preset operating parameter of the motor, D2 represents a second preset operating parameter of the motor, D3 represents a third preset operating parameter of the motor, and Dn represents an nth preset operating parameter of the motor.
Specifically, in the embodiment of the invention, an operating parameter matrix C (C1, C2, C3 … Cn) for the solenoid valves is provided, wherein C1 represents a first preset operating parameter of the solenoid valves, C2 represents a second preset operating parameter of the solenoid valves, C3 represents a third preset operating parameter of the solenoid valves, and Cn represents an nth preset operating parameter of the solenoid valves.
Specifically, in the embodiment of the present invention, the central control unit is preset with operating parameters P (P1, P2, P3 … Pn) of the air-cooled heat pump units, where P1 represents an operating parameter of the first preset air-cooled heat pump unit, P2 represents an operating parameter of the second preset air-cooled heat pump unit, P3 represents an operating parameter of the third preset air-cooled heat pump unit, and Pn represents an operating parameter of the nth preset air-cooled heat pump unit.
Specifically, in the embodiment of the invention, the fan coil comprises an indoor fan coil and a public fan coil, the indoor fan coil is correspondingly provided with a temperature controller, and the temperature of the public fan coil is a preset temperature. The space where the indoor fan coil is located is a room of a hotel, and the space where the public fan coil is located is a public area such as a corridor of the hotel.
Specifically, in the embodiment of the present invention, the central control unit determines the working parameters Wk of the motor and the electromagnetic valve of the fan coil according to the difference between the indoor temperature Ts at which the indoor fan coil is detected by the temperature detector and the temperature Tx adjusted by the temperature controller, and determines the working parameters Pi of the air-cooled heat pump unit according to the difference between the temperature Tk and the temperature Tx, which are detected by the temperature sensor, of the cold energy or the heat energy generated in the air handling unit and transmitted to the fan coil;
in the system operation process, the temperature detector detects the indoor temperature Ts where an indoor fan coil is located in real time, when the system operates in a preset time t1 range, and Ts is equal to Tx, the fan coil stops working, when the system operates to a preset time t1, Ts is equal to Tx, the central control unit adjusts working parameters of the air-cooled heat pump unit Pi and the fan coil Wk according to a difference Tsc between the real-time Ts and Tx, when Ts is equal to Tx, the fan coil stops working, and when the difference between Ts and Tx is a, the fan coil operates according to the preset working parameters, when Ts is equal to Tx, the fan coil stops working, and the temperature controller is turned off after circulation.
Specifically, in the embodiment of the present invention, the central control unit adjusts the indoor fan coil according to the difference Tc between the temperature Tx adjusted by the temperature controller corresponding to the indoor fan coil and the indoor temperature Ts at which the indoor fan coil is located,
when Tc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W1, selects and adjusts D1 from W1 to be the current working parameter of the indoor fan coil motor, and selects and adjusts C1 to be the current working parameter of the indoor fan coil electromagnetic valve;
when T1 is more than Tc and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W2, selects and adjusts D2 from W2 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C2 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T2 is more than Tc and less than or equal to T3, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W3, selects and adjusts D3 from W3 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C3 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T (n-1) < Tc and not more than Tn, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be Wn, selects and adjusts Dn from Wn to be the working parameter of the current indoor fan coil motor, and selects and adjusts Cn to be the working parameter of the current indoor fan coil electromagnetic valve.
Specifically, in the embodiment of the present invention, after the operating parameter Wi of the fan coil is determined, the operating parameter of the air-cooled heat pump unit is determined by comparing the temperature Tk of the cold or heat generated in the air handling unit when being transferred to the fan coil with the difference Tcc of the temperature adjusted by the temperature controller as Tx,
when Tcc is less than or equal to T1, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P1;
when T1 is more than Tcc and is less than or equal to T2, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P2;
when T2 is more than Tcc and is less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P3;
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to Pn.
Specifically, in the embodiment of the present invention, the system operates according to preset operating parameters Wi of the indoor fan coil and operating parameters Pi of the air-cooling and heating pump unit, when the operating duration is within a preset time t1, if Ts is Tx, the fan coil stops operating, and when the operating duration is outside a preset time t1, the operating parameters Wi of the indoor fan coil and the operating parameters Pi of the air-cooling and heating pump unit are adjusted.
Specifically, in the embodiment of the invention, when the system can reach the temperature regulated by the temperature controller within the time t1, the space where the indoor fan coil is located can reach another temperature from the room temperature within a certain time, so as to give people a comfortable experience, and simultaneously, the feeling of bad experience to people caused by too fast temperature rise or reduction is avoided, if the space where the indoor fan coil is located does not reach the temperature regulated by the temperature controller after the system operates for the time t1, the system can adjust the air volume and the cold volume or the heat volume of the indoor fan coil and the working parameters of the air-cooled heat pump unit according to the difference between the real-time temperature of the space where the indoor fan coil is located and the temperature regulated by the temperature controller, so that the space where the indoor fan coil is located can quickly reach the temperature regulated by the temperature controller during the time t1, if the system operates for the time t1, if the temperature of the indoor fan coil is different from the temperature adjusted by the temperature controller according to the working parameter operation time of W1 to the range of t1, the system can adjust the air volume and the cold volume of the indoor fan coil and the working parameters of the air-cooled heat pump unit according to the difference between the real-time temperature of the indoor fan coil and the temperature adjusted by the temperature controller continuously until the space of the indoor fan coil reaches the temperature adjusted by the temperature controller, the indoor fan coil stops working until the difference between the real-time temperature of the space of the indoor fan coil and the temperature adjusted by the temperature controller is a, and the real-time temperature of the space of the indoor fan coil is the same as the temperature adjusted by the temperature controller when the indoor fan coil operates according to the working parameter operation time of W1 to the range of t1 And adjusting the quantity or heat and working parameters of the air-cooled heat pump unit so that the space where the indoor fan coil is located can quickly reach the temperature regulated by the temperature controller in the second t1 time until the indoor temperature controller is closed.
Specifically, in the embodiment of the present invention, if Ts is Tx in the process of the system running to t1, the indoor fan coil stops working;
if the system running time reaches t1 and Ts is not equal to Tx, the central control unit adjusts the working parameters of the air-cooled heat pump unit Pi and the fan coil Wk according to the difference Tsc between the real-time Ts and Tx,
when Tsc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the fan coil to be W (k + 1);
when the Tsc is more than T1 and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the fan coil to be W (k + 2);
when T2 is more than Tcc and less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 1);
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 2).
Specifically, in the embodiment of the invention, the working state of the fan coil is adjusted by gradually adjusting the motor and the electromagnetic valve of the fan coil, so that the change of the temperature of a human body is gradually adapted, the comfort level of the system is improved, and in the continuous gradual adjustment process, the working parameters of the indoor fan coil are accurately controlled, the energy loss of the system is improved, the working efficiency of the system is improved, and the purpose of saving energy is achieved.
Specifically, in the embodiment of the present invention, if Ts is equal to Tx, the indoor fan coil stops operating, until a difference between Ts and Tx is a, the operating parameter of the indoor fan coil according to W1 is within t1, and Ts is equal to Tx, the indoor fan coil stops operating, and if the operating parameter of the indoor fan coil according to W1 is within t1, and Ts is equal to Tx, the central control unit adjusts the operating parameters of the air cooling and heating pump unit Pi and the fan coil Wk according to the difference Tsc between real-time Ts and Tx, and circulates to the indoor thermostat to be closed until Ts is equal to Tx.
Specifically, in the embodiment of the present invention, the central control unit adjusts the temperature of the space where the common fan coil is located, where the central control unit adjusts the operating parameters of the common fan coil and the air cooling and heating pump unit according to a difference between the temperature Gs of the space where the common fan coil is located and a preset temperature G0 of the common space.
Specifically, in the embodiment of the present invention, a plurality of temperature detectors are disposed in a space where the common fan coil is located, and form a common fan coil temperature detector matrix G (G1, G2, G3 … Gn), where G1 denotes a first preset temperature detector, G2 denotes a second preset temperature detector, G3 denotes a third preset temperature detector, and Gn denotes an nth preset temperature detector; and the central control unit controls the space temperature Gs corresponding to the common fan coil, wherein the Gs is (G1+ G2+ G3+ … + Gn)/n.
Specifically, in the embodiment of the present invention, in the operation process of the system, the temperatures of the temperature detectors in the space where the common fan coil is located are detected in real time, and the central control unit calculates the temperature Gs of the space where the common fan coil is located according to the temperature Gs of the space where the common fan coil is located, and compares the temperature Gs with the temperature G0 of the space where the preset common fan coil is located, and if Gs is equal to G0, it is determined that the temperature of the space where the common fan coil is located is the same as the preset temperature, and no adjustment is required.
If Gs is not equal to G0, determining that the temperature of the space where the public fan coil is located is different from the preset temperature and needs to be adjusted, adjusting the public fan coil by the central control unit according to the difference between the temperature Gs of the space where the public fan coil is located and the temperature G0 of the preset public space, when the difference between Gs and G0 is detected to be b, operating the public fan coil according to the working parameters of W2, wherein the operating time is within a preset time t2, and if Gs is G0, stopping the operation of the public fan coil, when the difference between Gs and G0 at the next time is b, operating the public fan coil according to the working parameters of W2, and cycling the system to be closed.
Specifically, in the embodiment of the present invention, if the difference between Gs and G0 is b, when the common fan coil operates according to the operating parameter of W2 to the preset time t2, and Gs is not equal to G0, the air-cooled heat pump unit Pi is adjusted to P (i +1), the common fan coil is adjusted to W3, until Gs is G0, the common fan coil stops operating, the difference between Gs and G0 is b next time, and the common fan coil operates according to the operating parameter of W3 and the operating parameter of the air-cooled heat pump unit P (i +1), and the system is cycled to off.
Specifically, in the embodiment of the present invention, in the process of adjusting the fan coil and the air cooling and heating pump unit of the system, if the current operating parameters of the fan coil and the air cooling and heating pump unit are the maximum values and the current operating parameters of the fan coil and the air cooling and heating pump unit still need to be adjusted, the current operating parameters of the fan coil and the air cooling and heating pump unit are used as the adjusted operating parameters.
Specifically, in the embodiment of the invention, when the system adjusts the temperature of the space where the public fan coil is located, the temperature of the space where the public fan coil is located is considered to be uniformly adjusted by the system, but not the temperature which can be independently adjusted by an individual in the space where the indoor fan coil is located according to the requirement, so that two different adjusting modes are adopted for the indoor fan coil and the public fan coil, the personal comfort is improved, the energy loss of the system is reduced, the working efficiency of the system is improved, and the energy-saving effect can be achieved.
Specifically, in the embodiment of the present invention, the temperature controller may be connected to a website such as a mobile phone and a computer through a bluetooth module, and may also be connected to a ZigBee network, and a wireless side of a ZigBee gateway in the system is wirelessly connected, and a wired side of the ZigBee gateway is connected to an ethernet switch through a network cable, and data is transmitted to a central control unit for processing, and the workstation and a data server are wirelessly controlled by the network cable.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hotel central air-conditioning energy-saving system based on wireless is characterized in that the energy-saving system comprises,
the air-cooled heat pump unit is used for generating cold and heat and providing a cold source or a heat source for the system;
the indoor fan coil comprises a motor, a temperature detector, an electromagnetic valve and a temperature controller, the motor is used for adjusting the wind speed of the indoor fan coil, the temperature detector is used for detecting the indoor temperature, the electromagnetic valve is used for adjusting the cold quantity of the indoor fan coil, and the temperature controller is used for adjusting the temperature of the space where the indoor fan coil is located;
the air handling unit is used for conveying cold energy or heat energy generated by the air-cooled heat pump unit to the fan coil for exchange and then returning to the air-cooled heat pump unit, and a temperature sensor is arranged in the air handling unit and used for detecting the temperature of the air handling unit when the air handling unit is transmitted to the indoor fan coil;
the central control unit is respectively connected with the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and is used for receiving data transmitted by the air-cooled heat pump unit, the motor, the temperature detector, the electromagnetic valve, the temperature controller and the temperature sensor and adjusting working parameters of the data;
an air-cooled heat pump unit working parameter matrix P and an indoor fan coil working parameter matrix W are preset in the central control unit, and for the air-cooled heat pump unit working parameter matrix P (P1, P2 and P3 … Pn), P1 represents a first preset air-cooled heat pump unit working parameter, P2 represents a second preset air-cooled heat pump unit working parameter, P3 represents a third preset air-cooled heat pump unit working parameter, and Pn represents an nth preset air-cooled heat pump unit working parameter;
for an indoor fan coil working parameter matrix group W (W1, W2 and W3 … Wn), wherein W1 represents a first preset indoor fan coil working parameter matrix, W2 represents a second preset indoor fan coil working parameter matrix, W3 represents a third preset indoor fan coil working parameter matrix, and Wn represents an nth preset indoor fan coil working parameter matrix;
the central control unit determines working parameters Wk of a motor and an electromagnetic valve of the indoor fan coil according to a difference value between an indoor temperature Ts at which the indoor fan coil is detected by the temperature detector and a temperature Tx regulated by the temperature controller, and determines working parameters Pi of the air-cooled heat pump unit according to a difference value between a temperature Tk and a temperature Tx, which are detected by the temperature sensor and used for transmitting cold or heat generated in the air handling unit to the indoor fan coil;
in the system operation process, the temperature detector detects the indoor temperature Ts where an indoor fan coil is located in real time, when the system operates in a preset time t1 range and Ts = Tx, the indoor fan coil stops working, when the system operates to a preset time t1 and Ts ≠ Tx, the central control unit adjusts the working parameters of the air-cooled heat pump unit Pi and the indoor fan coil Wk according to the difference Tsc between the real-time Ts and Tx until Ts = Tx, the indoor fan coil stops working, when the difference between Ts and Tx is a, the indoor fan coil operates according to the preset working parameters until Ts = Tx, and the indoor fan coil stops working and circulates to close the temperature controller;
the central control unit adjusts the temperature of the space where the common fan coil is located, and the central control unit adjusts the working parameters of the common fan coil and the air cooling and heating pump unit according to the difference value between the temperature Gs of the space where the common fan coil is located and the temperature G0 of the preset common space.
2. The wireless-based hotel central air-conditioning energy saving system of claim 1, wherein for the nth set of indoor fan coil operating parameter matrices Wn, Wn (D, C), wherein D represents a preset operating parameter matrix for the motor and C represents a preset operating parameter matrix for the solenoid valve;
an operating parameter matrix D (D1, D2 and D3 … Dn) of the motor, wherein D1 represents a first preset operating parameter of the motor, D2 represents a second preset operating parameter of the motor, D3 represents a third preset operating parameter of the motor, and Dn represents an nth preset operating parameter of the motor;
and an operating parameter matrix C (C1, C2 and C3 … Cn) of the solenoid valves, wherein C1 represents a first preset operating parameter of the solenoid valves, C2 represents a second preset operating parameter of the solenoid valves, C3 represents a third preset operating parameter of the solenoid valves, and Cn represents an nth preset operating parameter of the solenoid valves.
3. The energy-saving system for central air-conditioning of hotels according to claim 2, wherein the central control unit adjusts the indoor fan coil according to the difference Tc between the temperature Tx adjusted by the corresponding temperature controller of the indoor fan coil and the indoor temperature Ts where the indoor fan coil is located,
when Tc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W1, selects and adjusts D1 from W1 to be the current working parameter of the indoor fan coil motor, and selects and adjusts C1 to be the current working parameter of the indoor fan coil electromagnetic valve;
when T1 is more than Tc and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W2, selects and adjusts D2 from W2 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C2 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T2 is more than Tc and less than or equal to T3, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W3, selects and adjusts D3 from W3 to be the working parameter of the current indoor fan coil motor, and selects and adjusts C3 to be the working parameter of the current indoor fan coil electromagnetic valve;
when T (n-1) < Tc and not more than Tn, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be Wn, selects and adjusts Dn from Wn to be the working parameter of the current indoor fan coil motor, and selects and adjusts Cn to be the working parameter of the current indoor fan coil electromagnetic valve.
4. The energy saving system for central air conditioners in hotels according to claim 3, wherein after the central control unit determines the working parameters of the indoor fan coil, the central control unit determines the working parameters of the air-cooled heat pump unit according to the comparison between the temperature Tk of the cold or heat generated in the air handling unit and the difference Tc of the temperature controller adjusting temperature Tx when the cold or heat is transmitted to the indoor fan coil,
when Tcc is less than or equal to T1, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P1;
when T1 is more than Tcc and is less than or equal to T2, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P2;
when T2 is more than Tcc and is less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P3;
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to Pn.
5. The energy saving system for central air-conditioning in hotel based on wireless as claimed in claim 4, wherein when the system running time is t1, Ts ≠ Tx, the central control unit adjusts the working parameters of the air-cooled heat pump unit Pi and the indoor fan coil Wk according to the difference value Tsc between real time Ts and Tx,
when Tsc is less than or equal to T1, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W (k + 1);
when the Tsc is more than T1 and less than or equal to T2, the central control unit adjusts the working parameter matrix group of the indoor fan coil to be W (k + 2);
when T2 is more than Tcc and less than or equal to T3, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 1);
when T (n-1) < Tcc < Tn, the central control unit adjusts the working parameter matrix of the air-cooled heat pump unit to be P (i + 2).
6. The energy saving system for central air conditioners in hotels according to claim 5, wherein if Ts = Tx, the indoor fan coil is stopped, until the difference between Ts and Tx is a, the indoor fan coil operates at T1 according to the operating parameter of W1, and Ts = Tx, the indoor fan coil is stopped, if the indoor fan coil operates at T1 according to the operating parameter of W1, and Ts ≠ Tx, the central control unit adjusts the operating parameters of the air cooling and heating pump unit Pi and the indoor fan coil Wk according to the real-time difference Tsc between Ts and Tx, until Ts = Tx, and the indoor temperature controller is turned off.
7. The energy saving system for central air conditioners in hotels according to claim 6, wherein a plurality of temperature detectors are installed in the space where the public fan coil is located, and form a public fan coil temperature detector matrix G (G1, G2, G3 … Gn), wherein G1 represents a first preset temperature detector, G2 represents a second preset temperature detector, G3 represents a third preset temperature detector, and Gn represents an nth preset temperature detector, and the central control unit determines the space temperature Gs, Gs = (G1+ G2+ G3+ … + Gn)/n corresponding to the public fan coil.
8. The energy saving system for hotel central air conditioners as claimed in claim 7, wherein the central control unit adjusts the common fan coil according to the difference between the temperature Gs of the space where the common fan coil is located and the temperature G0 of the preset common space, and if Gs = G0, the common fan coil stops working;
if the difference value between Gs and G0 is b, the common fan coil stops working within preset time t2 according to the working parameter running time of W2, and when Gs = G0, the difference value between Gs and G0 is b next time, the common fan coil runs according to the working parameter of W2, and the system is closed circularly.
9. The wireless-based hotel central air-conditioning energy saving system of claim 8,
if the difference value between Gs and G0 is b, when the common fan coil operates to a preset time t2 according to the working parameters of W2, and Gs is not equal to G0, the air-cooled heat pump unit Pi is adjusted to be P (i +1), the common fan coil is adjusted to be W3 until Gs = G0, the common fan coil stops operating, the difference value between next Gs and G0 is b, and the common fan coil operates according to the working parameters of W3 and the working parameters of the air-cooled heat pump unit P (i +1) and circulates to the system to be closed.
10. The energy-saving system for central air conditioners in hotels according to claim 9, wherein in the process of adjusting the indoor fan coil and the air cooling and heating pump unit of the system, if the working parameters of the current indoor fan coil and the air cooling and heating pump unit are maximum values and the working parameters of the current indoor fan coil and the air cooling and heating pump unit are still required to be adjusted, the working parameters of the current indoor fan coil and the air cooling and heating pump unit are taken as the adjusted working parameters.
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