CN106403044A - Multi-on-line system and method for judging heating capacity of indoor units of multi-on-line system - Google Patents
Multi-on-line system and method for judging heating capacity of indoor units of multi-on-line system Download PDFInfo
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- CN106403044A CN106403044A CN201610973382.5A CN201610973382A CN106403044A CN 106403044 A CN106403044 A CN 106403044A CN 201610973382 A CN201610973382 A CN 201610973382A CN 106403044 A CN106403044 A CN 106403044A
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- indoor
- indoor set
- heat
- decision content
- heats
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Classifications
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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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention discloses a multi-on-line system and a method for judging the heating capacity of indoor units of the multi-on-line system. The method comprises the following steps of (1) detecting the indoor temperature T1 corresponding to each heating indoor unit among the multiple indoor units in real time, acquiring a saturation temperature Tps1 corresponding to the upstream pressure of a first throttling valve and acquiring an outlet temperature T2A and an inlet temperature T2B of an indoor heat exchange assembly in each heating indoor unit when the multi-on-line system runs; (2) computing a first judgment value according to the saturation temperature Tps1, the indoor temperature T1 corresponding to any heating indoor unit and the outlet temperature T2A and the inlet temperature T2B of each indoor heat exchange assembly, and acquiring the continuous heating running time of the heating indoor unit; and (3) judging whether the heating capacity of the corresponding heating indoor unit is insufficient or not according to the first judgment value, the continuous heating running time of the heating indoor unit and the opening degree of an indoor throttling element of the heating indoor unit. According to the method, whether the heating capacity of the heating indoor unit is insufficient or not can be accurately judged in time.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of judgement side of indoor set heating capacity in multiple on-line system
Method and a kind of multiple on-line system.
Background technology
Multiple on-line system has been widely used in various larger office buildings, office building, hospital and villa etc., due to user
Multiformity and handling characteristicss different, often occur throughout the year some rooms need heat, and other room need
Situation to be freezed.Traditional multi-connected machine can only be realized separate refrigeration or heat, and recovery type heat multiple on-line system is due to its energy
Realize refrigeration simultaneously and heat, and there is higher Energy Efficiency Ratio in a hybrid mode, there is very big market prospect.
For recovery type heat multiple on-line system, can need can run main heating mode when demand is big when heating, work as system
Main refrigeration mode can be run when cold energy demand is big.Due to load variations under main refrigeration mode, such as heat room personnel
Tail off, pyrotoxin reduces or the machine in start that heats becomes many, lead to heating load to increase, heating capacity deficiency occurs, affects room
Comfortableness.But current multiple on-line system is still difficult to timely and accurately the not enough situation of heating capacity be judged.
Content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.For this reason, the present invention
One purpose is to propose a kind of decision method of indoor set heating capacity in multiple on-line system, can timely and accurately judge
Whether the heating capacity heating indoor set is not enough.
Second object of the present invention is to propose a kind of multiple on-line system.
For reaching above-mentioned purpose, first aspect present invention embodiment proposes indoor set in a kind of multiple on-line system and heats energy
The decision method of power, wherein, described multiple on-line system includes off-premises station, part flow arrangement and multiple indoor set, described part flow arrangement
Including the cooling circuit again being made up of the first heat-exchanging component, the second heat-exchanging component, first throttle valve and second throttle, each room
Interior machine includes indoor restricting element and indoor heat-exchanging component, the method comprising the steps of：When described multiple on-line system is run
When, in the plurality of indoor set of real-time detection, each heats corresponding indoor temperature T1 of indoor set, and obtains described first throttle
Saturation temperature Tps1 corresponding to the upstream pressure of valve, and obtain the outlet temperature that each heats in indoor set indoor heat-exchanging component
Degree T2A and inlet temperature T2B；According to described saturation temperature Tps1 and any one heat the corresponding indoor temperature of indoor set
T1, outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B calculate the first decision content, and obtain this and heat indoor set
Continue the heating operation time；According to described first decision content, this lasting heating operation time of heating indoor set and this heating chamber
The aperture of the indoor restricting element of interior machine judges whether this heats the heating capacity of indoor set not enough.
The decision method of indoor set heating capacity in multiple on-line system according to embodiments of the present invention, by multi-connected machine system
When system runs, in the multiple indoor set of real-time detection, each heats the corresponding indoor temperature of indoor set, and obtains first throttle valve
Saturation temperature corresponding to upstream pressure, each heat the ginseng such as the outlet temperature of indoor heat-exchanging component and inlet temperature in indoor set
Number, and according to above-mentioned parameter, this heat lasting heating operation time of indoor set and this heat indoor set indoor throttling first
The heating capacity that the aperture of part heats indoor set to this judges, thereby, it is possible to timely and accurately judge to heat indoor set
Heating capacity whether not enough, consequently facilitating multiple on-line system adjusts according to judged result in time, to meet user to room
The demand of comfort inside.
In addition, according to the above embodiment of the present invention propose multiple on-line system in indoor set heating capacity decision method also
Can have the technical characteristic adding as follows：
Specifically, when described first decision content be more than or equal to the first preset value, this heat the lasting heating operation of indoor set
Time is more than the first Preset Time and when this indoor restricting element of heating indoor set opens to default maximum opening, judges this
Heat the heating capacity deficiency of indoor set, and send this to described part flow arrangement and heat indoor mechanism hot scarce capacity unlatching letter
Number.
Further, when this heat indoor office's machine or this heat indoor set indoor restricting element aperture through PI
(Proportional Integral, proportional integral) adjusts and diminishes and default aperture or described first decision content less than first
During less than the second preset value, send this to described part flow arrangement and heat indoor mechanism hot scarce capacity shutdown signal, wherein, described
First default aperture is less than described default maximum opening, and described second preset value is less than described first preset value.
Specifically, described first decision content is calculated according to below equation：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is described first decision content.
According to one embodiment of present invention, in described multiple on-line system, the decision method of indoor set heating capacity also wraps
Include：Calculate second according to inlet temperature T2B that described saturation temperature Tps1 heats indoor set corresponding interior heat-exchanging component with this
Decision content, and according to described saturation temperature Tps1, this heat indoor set corresponding interior inlet temperature T2B of heat-exchanging component and room
Interior temperature T1 calculates the 3rd decision content；The lasting heating operation time of indoor set, described second decision content are heated according to described this
Judge whether this heats the heating capacity of indoor set not enough with described 3rd decision content.
Specifically, it is more than the first Preset Time, described second judgement when the lasting heating operation time that this heats indoor set
When value is less than described four preset value less than the 3rd preset value and described 3rd decision content, judge that what this heated indoor set heats energy
Power is not enough, and sends this to described part flow arrangement and heat indoor mechanism hot scarce capacity open signal.
Further, when this heats indoor office's machine or described second decision content be more than or equal to the 5th preset value or
When described 3rd decision content is more than or equal to six preset values, sends this to described part flow arrangement and heat the hot scarce capacity of indoor mechanism
Shutdown signal, wherein, described 5th preset value is more than described 3rd preset value, and described 6th preset value is more than the described 4th to be preset
Value.
Specifically, described second decision content and described 3rd decision content are calculated according to below equation：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is described second decision content, and c is described 3rd decision content.
For reaching above-mentioned purpose, second aspect present invention embodiment proposes a kind of multiple on-line system, and it includes：Multiple rooms
Interior machine, each described indoor set includes indoor restricting element and indoor heat-exchanging component；Off-premises station；Part flow arrangement, described shunting dress
Put including the cooling circuit again being made up of the first heat-exchanging component, the second heat-exchanging component, first throttle valve and second throttle；Obtain
Module, described acquisition module is used for when described multiple on-line system is run, and in the plurality of indoor set of real-time detection, each heats
Corresponding indoor temperature T1 of indoor set, and obtain saturation temperature Tps1 corresponding to upstream pressure of described first throttle valve, with
And obtain outlet temperature T2A and inlet temperature T2B that each heats in indoor set indoor heat-exchanging component；Main control module, described master
Control module be used for according to described saturation temperature Tps1 and any one heat corresponding indoor temperature T1 of indoor set, indoor heat exchange
Outlet temperature T2A of assembly and inlet temperature T2B calculate the first decision content, and obtain the lasting heating operation that this heats indoor set
Time, and according to described first decision content, this heats lasting heating operation time of indoor set and this heats the room of indoor set
The aperture of interior restricting element judges whether this heats the heating capacity of indoor set not enough.
Multiple on-line system according to embodiments of the present invention, by acquisition module when multiple on-line system is run, real-time detection
In multiple indoor sets, each heats the corresponding indoor temperature of indoor set, and obtains full corresponding to the upstream pressure of first throttle valve
With parameters such as temperature, outlet temperature that each heats in indoor set indoor heat-exchanging component and inlet temperatures, and pass through master control mould
Tuber is according to above-mentioned parameter, this heats lasting heating operation time of indoor set and this heats the opening of indoor restricting element of indoor set
Spend the heating capacity heating indoor set to this to judge, thereby, it is possible to timely and accurately judge to heat heating of indoor set
Whether ability is not enough, consequently facilitating multiple on-line system adjusts according to judged result in time, to meet user to indoor comfortable
The demand of degree.
In addition, it is special to have, according to the multiple on-line system that the above embodiment of the present invention proposes, the technology added as follows
Levy：
Specifically, described main control module described first decision content be more than or equal to the first preset value, this heat indoor set
Continue that the heating operation time is more than the first Preset Time and this indoor restricting element of heating indoor set is opened to default maximum
During aperture, judge that this heats the heating capacity of indoor set deficiency, and send this to described part flow arrangement to heat indoor mechanism heat energy
Power deficiency open signal.
Further, described main control module this heat indoor office's machine or this heat indoor set indoor throttling first
The aperture of part is adjusted through PI when diminishing and presetting aperture or described first decision content less than the second preset value less than first, to
Described part flow arrangement sends this and heats indoor mechanism hot scarce capacity shutdown signal, and wherein, the described first default aperture is less than institute
State default maximum opening, described second preset value is less than described first preset value.
Specifically, described main control module calculates described first decision content according to below equation：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is described first decision content.
According to one embodiment of present invention, described main control module is additionally operable to be heated with this according to described saturation temperature Tps1
Indoor set corresponding interior heat-exchanging component inlet temperature T2B calculate the second decision content, and according to described saturation temperature Tps1, should
Heat inlet temperature T2B of indoor set corresponding interior heat-exchanging component and indoor temperature T1 calculates the 3rd decision content, and according to
The described lasting heating operation time that this heats indoor set, described second decision content and described 3rd decision content judge this heating chamber
Whether the heating capacity of interior machine is not enough.
Specifically, described main control module this heat indoor set the lasting heating operation time be more than the first Preset Time,
When described second decision content is less than the 3rd preset value and described 3rd decision content and is less than described four preset value, judge this heating chamber
The heating capacity of interior machine is not enough, and sends this to described part flow arrangement and heat indoor mechanism hot scarce capacity open signal.
Further, described main control module heats indoor office's machine or described second decision content is more than or equal to the at this
When five preset values or described 3rd decision content are more than or equal to six preset values, send this to described part flow arrangement and heat interior
Machine heating capacity deficiency shutdown signal, wherein, described 5th preset value is more than described 3rd preset value, and described 6th preset value is big
In described 4th preset value.
Specifically, described main control module calculates described second decision content and described 3rd decision content according to below equation：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is described second decision content, and c is described 3rd decision content.
Brief description
Fig. 1 is the flow chart according to the decision method of indoor set heating capacity in the multiple on-line system of the embodiment of the present invention；
Fig. 2 is the structural representation according to off-premises station in the multiple on-line system of one embodiment of the invention；
Fig. 3 is the structural representation according to indoor set in the multiple on-line system of one embodiment of the invention and part flow arrangement.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
The multiple on-line system of the embodiment of the present invention and its judgement side of indoor set heating capacity to be described below in conjunction with the accompanying drawings
Method.
Fig. 1 is the flow chart according to the decision method of indoor set heating capacity in the multiple on-line system of the embodiment of the present invention.
Wherein, with reference to Fig. 2 and Fig. 3, the multiple on-line system of the embodiment of the present invention, including off-premises station, part flow arrangement and multiple
Indoor set, wherein, part flow arrangement is included by the first heat-exchanging component, the second heat-exchanging component, first throttle valve and second throttle structure
The cooling circuit again becoming.Each indoor set includes indoor restricting element and indoor heat-exchanging component.
As shown in figure 1, in the multiple on-line system of the embodiment of the present invention indoor set heating capacity decision method, including following
Step：
S1, when multiple on-line system is run, in the multiple indoor set of real-time detection, each heats the corresponding Indoor Temperature of indoor set
Degree T1, and obtain saturation temperature Tps1 corresponding to upstream pressure of first throttle valve, and obtain each and heat in indoor set
Outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B.
With reference to Fig. 2 and Fig. 3, when multiple on-line system is run, taking main refrigerating operaton as a example, first port a of cross valve with
Second port b is connected, and the 4th port d and the 3rd port c are connected.The gaseous coolant of compressor outlet High Temperature High Pressure passes through oil
It is directly entered outdoor heat exchange assembly through check valve F1 and at least one heat exchange stream after separator and cross valve to be condensed, condensation
Coolant afterwards enters the high-pressure gas-liquid separator of part flow arrangement through check valve F6.Then, the coolant for refrigeration sequentially passes through the
Corresponding refrigeration indoor set is entered, through system after one heat-exchanging component, first throttle valve EXV1, the second heat-exchanging component and check valve
After the restricting element of cold indoor set enters its indoor heat-exchanging component evaporation, then return through refrigeration indoor set corresponding refrigeration electromagnetic valve
To off-premises station, wherein, some coolant, after the second heat-exchanging component, can return off-premises station through restricting element EXV2.And use
In the coolant heating, through heating, electromagnetic valve entrance is corresponding to heat indoor set, then through heating the indoor heat-exchanging component of indoor set
After condensation, the restricting element through heating indoor set flows out.It should be noted that in figure 3, SVC1-SVC4 is refrigeration electromagnetic valve,
SVH1-SVH4 is to heat electromagnetic valve, and RV1-RV8 is check valve.
In one embodiment of the invention it is assumed that in Fig. 3 11 is to heat indoor set, 12,13 and 14 are cool room
Interior machine, then can correspond to position detection saturation temperature Tps1, outlet temperature T2A and inlet temperature T2B indicating in figure 3.
S2, according to saturation temperature Tps1 and any one heat corresponding indoor temperature T1 of indoor set, indoor heat exchange group
Outlet temperature T2A of part and inlet temperature T2B calculate the first decision content, and when obtaining lasting heating operation that this heats indoor set
Between.
Specifically, the first decision content can be calculated according to below equation：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is the first decision content.
S3, according to the first decision content, this heats lasting heating operation time of indoor set and this heats the interior of indoor set
The aperture of restricting element judges whether this heats the heating capacity of indoor set not enough.
In one embodiment of the invention, when the first decision content a be more than or equal to the first preset value P, this heat indoor set
Lasting heating operation time t be more than the first Preset Time R and this indoor restricting element of heating indoor set is opened to default
During maximum opening, can determine whether to heat the high-temperature gas cold medium shortage of indoor set, thus can determine whether that what this heated indoor set heats energy
Power is not enough, and sends this to part flow arrangement and heat indoor mechanism hot scarce capacity open signal.
And work as that this heats indoor office's machine or the aperture of this indoor restricting element of heating indoor set diminishes through PI regulation
And when default aperture or the first decision content a are less than the second preset value Q less than first, send this to part flow arrangement and heat interior
Machine heating capacity deficiency shutdown signal, wherein, the first default aperture is less than default maximum opening, and the second preset value Q is less than the
One preset value P.In one particular embodiment of the present invention, the first default aperture can be the 95% of default maximum opening.
In addition, except leading to this to heat the heating capacity of indoor set not by the high-temperature gas cold medium shortage heating indoor set
It is also possible to lead to the heating capacity that this heats indoor set because the high-temperature gas refrigerant temperature heating indoor set is not high enough outside foot
Not enough.
Therefore, in one embodiment of the invention, also can according to saturation temperature Tps1 and this to heat indoor set corresponding
Inlet temperature T2B of indoor heat-exchanging component calculates the second decision content, and according to saturation temperature Tps1, that this heats indoor set is corresponding
Inlet temperature T2B of indoor heat-exchanging component and indoor temperature T1 calculate the 3rd decision content, and heat continuing of indoor set according to this
Heating operation time, the second decision content and the 3rd decision content judge whether this heats the heating capacity of indoor set not enough.
Specifically, the second decision content and the 3rd decision content can be calculated according to below equation：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is the second decision content, and c is the 3rd decision content.
In one embodiment of the invention, preset when the lasting heating operation time t that this heats indoor set is more than first
When time R, the second decision content b are less than the 3rd preset value V1 and the 3rd decision content c and are less than the 4th preset value W1, can determine whether that this heats
The high-temperature gas refrigerant temperature of indoor set is not high enough, thus can determine whether that this heats the heating capacity of indoor set deficiency, and to shunting
Device sends this and heats indoor mechanism hot scarce capacity open signal.
And work as this and heat indoor office's machine or the second decision content b more than or equal to the 5th preset value V2 or the 3rd judgement
When value c is more than or equal to the 6th preset value W2, sends this to part flow arrangement and heat indoor mechanism hot scarce capacity shutdown signal, its
In, the 5th preset value V2 is more than the 3rd preset value V1, and the 6th preset value W2 is more than the 4th preset value W1.
Receive after this heats indoor mechanism hot scarce capacity open signal or shutdown signal in part flow arrangement, can control point
Stream device and off-premises station are made corresponding control and are adjusted, with the change of timely reactive mode thermic load.For example, heat receiving this
During indoor set heating capacity deficiency open signal, it is possible to increase flowed into the amount of the coolant heating electromagnetic valve by high-pressure gas-liquid separator,
To improve the heating capacity that this heats indoor set.
The decision method of indoor set heating capacity in multiple on-line system according to embodiments of the present invention, by multi-connected machine system
When system runs, in the multiple indoor set of real-time detection, each heats the corresponding indoor temperature of indoor set, and obtains first throttle valve
Saturation temperature corresponding to upstream pressure, each heat the ginseng such as the outlet temperature of indoor heat-exchanging component and inlet temperature in indoor set
Number, and according to above-mentioned parameter, this heat lasting heating operation time of indoor set and this heat indoor set indoor throttling first
The heating capacity that the aperture of part heats indoor set to this judges, thereby, it is possible to timely and accurately judge to heat indoor set
Heating capacity whether not enough, consequently facilitating multiple on-line system adjusts according to judged result in time, to meet user to room
The demand of comfort inside.
For realizing the decision method of indoor set heating capacity in the multiple on-line system that above-described embodiment proposes, the present invention also carries
Go out a kind of multiple on-line system.
As shown in Figures 2 and 3, the multiple on-line system of the embodiment of the present invention, including：Multiple indoor sets 10, off-premises station 20 and
Part flow arrangement 30.
Wherein, each indoor set 10 includes indoor restricting element and indoor heat-exchanging component, and part flow arrangement 30 is included by first
The cooling circuit again that heat-exchanging component 31, the second heat-exchanging component 32, first throttle valve EXV1 and second throttle EXV2 are constituted.
The multiple on-line system of the embodiment of the present invention may also include acquisition module and main control module (does not all indicate in Fig. 2 and Fig. 3
Go out), acquisition module is used for when multiple on-line system is run, in the multiple indoor set of real-time detection 10 each to heat indoor set corresponding
Indoor temperature T1, and obtain saturation temperature Tps1 corresponding to upstream pressure of first throttle valve EXV1, and obtain each system
Outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B in hot indoor set；Main control module is used for according to saturation temperature Tps1
And any one heats corresponding indoor temperature T1 of indoor set, outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B
Calculate the first decision content, and obtain the lasting heating operation time that this heats indoor set, and according to the first decision content, this heats
The aperture of the indoor restricting element that the lasting heating operation time of indoor set heats indoor set with this judges that this heats indoor set
Whether heating capacity is not enough.
With reference to Fig. 2 and Fig. 3, when multiple on-line system is run with main refrigeration mode, first port a of cross valve 22 and second
Port b is connected, and the 4th port d and the 3rd port c are connected.The gaseous coolant that compressor 21 exports High Temperature High Pressure passes through oil
It is directly entered outdoor heat exchange assembly 24 through check valve F1 and at least one heat exchange stream after device 23 and cross valve 22 to be condensed,
Condensed coolant enters the high-pressure gas-liquid separator 33 of part flow arrangement 30 through check valve F6.Then, for refrigeration coolant according to
Secondary after the first heat-exchanging component 31, first throttle valve EXV1, the second heat-exchanging component 32 and check valve, enter corresponding refrigeration
Indoor set, enters after its indoor heat-exchanging component evaporation through the restricting element of the indoor set that freezes, then corresponds to through refrigeration indoor set
Refrigeration electromagnetic valve return to off-premises station, wherein, some coolant, can be through restricting element after the second heat-exchanging component 32
EXV2 returns off-premises station.And be used for the coolant that heats and corresponding heat indoor set, then through heating chamber through heating electromagnetic valve and entering
After the indoor heat-exchanging component condensation of interior machine, the restricting element through heating indoor set flows out.
In one embodiment of the invention it is assumed that in Fig. 3 11 is to heat indoor set, 12,13 and 14 are cool room
Interior machine, then can correspond to position detection saturation temperature Tps1, outlet temperature T2A and inlet temperature T2B indicating in figure 3.
In one embodiment of the invention, main control module can calculate the first decision content according to below equation：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is the first decision content.
In one embodiment of the invention, main control module can be more than or equal to the first preset value P, be somebody's turn to do in the first decision content a
The lasting heating operation time t heating indoor set is more than the first Preset Time R and this indoor restricting element of heating indoor set is beaten
When opening to default maximum opening, judge to heat the high-temperature gas cold medium shortage of indoor set, thus can determine whether that this heats indoor set
Heating capacity not enough, and send this to part flow arrangement 30 and heat indoor mechanism hot scarce capacity open signal.
And work as that this heats indoor office's machine or the aperture of this indoor restricting element of heating indoor set diminishes through PI regulation
And when less than first, default aperture or the first decision content a are less than the second preset value Q, main control module can send to part flow arrangement
This heats indoor mechanism hot scarce capacity shutdown signal, and wherein, the first default aperture is less than default maximum opening, and second presets
Value Q is less than the first preset value P.In one particular embodiment of the present invention, the first default aperture can be default maximum opening
95%.
In addition, except leading to this to heat the heating capacity of indoor set not by the high-temperature gas cold medium shortage heating indoor set
It is also possible to lead to the heating capacity that this heats indoor set because the high-temperature gas refrigerant temperature heating indoor set is not high enough outside foot
Not enough.
Therefore, in one embodiment of the invention, main control module also can heat interior according to saturation temperature Tps1 with this
Machine corresponding interior heat-exchanging component inlet temperature T2B calculate the second decision content, and according to saturation temperature Tps1, this heat interior
Inlet temperature T2B of machine corresponding interior heat-exchanging component and indoor temperature T1 calculate the 3rd decision content, and heat interior according to this
The lasting heating operation time of machine, the second decision content and the 3rd decision content judge whether not this heat the heating capacity of indoor set
Foot.
Specifically, main control module can calculate the second decision content and the 3rd decision content according to below equation：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is the second decision content, and c is the 3rd decision content.
In one embodiment of the invention, the lasting heating operation time t that main control module heats indoor set at this is more than
When first Preset Time R, the second decision content b are less than the 3rd preset value V1 and the 3rd decision content c and are less than the 4th preset value W1, can sentence
Break this heat indoor set high-temperature gas refrigerant temperature not high enough, thus it is not enough to can determine whether that this heats the heating capacity of indoor set,
And send this to part flow arrangement and heat indoor mechanism hot scarce capacity open signal.
And work as this and heat indoor office's machine or the second decision content b more than or equal to the 5th preset value V2 or the 3rd judgement
When value c is more than or equal to the 6th preset value W2, main control module can send this to part flow arrangement and heat indoor mechanism hot scarce capacity pass
Close signal, wherein, the 5th preset value V2 is more than the 3rd preset value V1, and the 6th preset value W2 is more than the 4th preset value W1.
Receive after this heats indoor mechanism hot scarce capacity open signal or shutdown signal in part flow arrangement 30, can control
Part flow arrangement 30 and off-premises station 20 are made corresponding control and are adjusted, with the change of timely reactive mode thermic load.For example, receiving
When this heats indoor mechanism hot scarce capacity open signal, it is possible to increase flowed into by high-pressure gas-liquid separator 33 and heat the cold of electromagnetic valve
The amount of matchmaker, to improve the heating capacity that this heats indoor set.
Multiple on-line system according to embodiments of the present invention, by acquisition module when multiple on-line system is run, real-time detection
In multiple indoor sets, each heats the corresponding indoor temperature of indoor set, and obtains full corresponding to the upstream pressure of first throttle valve
With parameters such as temperature, outlet temperature that each heats in indoor set indoor heat-exchanging component and inlet temperatures, and pass through master control mould
Tuber is according to above-mentioned parameter, this heats lasting heating operation time of indoor set and this heats the opening of indoor restricting element of indoor set
Spend the heating capacity heating indoor set to this to judge, thereby, it is possible to timely and accurately judge to heat heating of indoor set
Whether ability is not enough, consequently facilitating multiple on-line system adjusts according to judged result in time, to meet user to indoor comfortable
The demand of degree.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (16)
1. in a kind of multiple on-line system the decision method of indoor set heating capacity it is characterised in that described multiple on-line system includes
Off-premises station, part flow arrangement and multiple indoor set, described part flow arrangement include by the first heat-exchanging component, the second heat-exchanging component, first
Choke valve and the cooling circuit again of second throttle composition, each indoor set includes indoor restricting element and indoor heat-exchanging component,
The method comprising the steps of：
When described multiple on-line system is run, in the plurality of indoor set of real-time detection, each heats the corresponding Indoor Temperature of indoor set
Degree T1, and obtain saturation temperature Tps1 corresponding to upstream pressure of described first throttle valve, and obtain each and heat interior
Outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B in machine；
According to described saturation temperature Tps1 and any one heat corresponding indoor temperature T1 of indoor set, indoor heat-exchanging component
Outlet temperature T2A and inlet temperature T2B calculate the first decision content, and obtain the lasting heating operation time that this heats indoor set；
According to described first decision content, this heats lasting heating operation time of indoor set and this heats the indoor throttling of indoor set
The aperture of element judges whether this heats the heating capacity of indoor set not enough.
2. in multiple on-line system according to claim 1 the decision method of indoor set heating capacity it is characterised in that working as institute
State the first decision content be more than or equal to the first preset value, this heat indoor set the lasting heating operation time be more than the first Preset Time
And this indoor restricting element of heating indoor set is when opening to default maximum opening, judge that this heats the heating capacity of indoor set
Deficiency, and send this to described part flow arrangement and heat indoor mechanism hot scarce capacity open signal.
3. in multiple on-line system according to claim 2, the decision method of indoor set heating capacity is somebody's turn to do it is characterised in that working as
The aperture heating indoor office's machine or this indoor restricting element of heating indoor set adjusts through PI and diminishes and default less than first
When aperture or described first decision content are less than the second preset value, send this to described part flow arrangement and heat indoor mechanism heat energy
Power deficiency shutdown signal, wherein, the described first default aperture is less than described default maximum opening, and described second preset value is less than
Described first preset value.
4. in multiple on-line system according to claim 1 indoor set heating capacity decision method it is characterised in that according to
Below equation calculates described first decision content：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is described first decision content.
5. in the multiple on-line system according to any one of claim 1-4 indoor set heating capacity decision method, it is special
Levy and be, also include：
Calculate second according to inlet temperature T2B that described saturation temperature Tps1 heats indoor set corresponding interior heat-exchanging component with this
Decision content, and according to described saturation temperature Tps1, this heat indoor set corresponding interior inlet temperature T2B of heat-exchanging component and room
Interior temperature T1 calculates the 3rd decision content；
Judged according to the described lasting heating operation time that this heats indoor set, described second decision content and described 3rd decision content
Whether the heating capacity that this heats indoor set is not enough.
6. in multiple on-line system according to claim 5, the decision method of indoor set heating capacity is somebody's turn to do it is characterised in that working as
The lasting heating operation time heating indoor set is more than the first Preset Time, described second decision content is less than the 3rd preset value and institute
When stating the 3rd decision content less than described four preset value, judge that this heats the heating capacity of indoor set deficiency, and to described shunting
Device sends this and heats indoor mechanism hot scarce capacity open signal.
7. in multiple on-line system according to claim 6, the decision method of indoor set heating capacity is somebody's turn to do it is characterised in that working as
Heat indoor office's machine or described second decision content is more than or equal to the 5th preset value or described 3rd decision content is more than etc.
When six preset values, send this to described part flow arrangement and heat indoor mechanism hot scarce capacity shutdown signal, wherein, described
Five preset values are more than described 3rd preset value, and described 6th preset value is more than described 4th preset value.
8. in multiple on-line system according to claim 5 indoor set heating capacity decision method it is characterised in that according to
Below equation calculates described second decision content and described 3rd decision content：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is described second decision content, and c is described 3rd decision content.
9. a kind of multiple on-line system is it is characterised in that include：
Multiple indoor sets, each described indoor set includes indoor restricting element and indoor heat-exchanging component；
Off-premises station；
Part flow arrangement, described part flow arrangement is included by the first heat-exchanging component, the second heat-exchanging component, first throttle valve and the second throttling
The cooling circuit again that valve is constituted；
Acquisition module, described acquisition module is used for when described multiple on-line system is run, in the plurality of indoor set of real-time detection
Each heats corresponding indoor temperature T1 of indoor set, and obtains the saturation temperature corresponding to upstream pressure of described first throttle valve
Tps1, and obtain outlet temperature T2A and inlet temperature T2B that each heats in indoor set indoor heat-exchanging component；
Main control module, described main control module be used for according to described saturation temperature Tps1 and any one to heat indoor set corresponding
Indoor temperature T1, outlet temperature T2A of indoor heat-exchanging component and inlet temperature T2B calculate the first decision content, and obtain this and heat
The lasting heating operation time of indoor set, and according to described first decision content, this heat indoor set lasting heating operation when
Between and the aperture of this indoor restricting element of heating indoor set judge whether this heats the heating capacity of indoor set not enough.
10. multiple on-line system according to claim 9 is it is characterised in that described main control module is in described first decision content
It is more than the first Preset Time and this heats interior more than or equal to the first preset value, this lasting heating operation time of heating indoor set
When the indoor restricting element of machine is opened to default maximum opening, judge that this heats the heating capacity of indoor set deficiency, and to institute
State part flow arrangement and send this and heat indoor mechanism hot scarce capacity open signal.
11. multiple on-line system according to claim 10 are it is characterised in that described main control module heats indoor office at this
The aperture of machine or this indoor restricting element of heating indoor set adjusts through PI and diminishes and less than the first default aperture or institute
When stating the first decision content less than the second preset value, send this and heat the hot scarce capacity of indoor mechanism and close to described part flow arrangement and believe
Number, wherein, the described first default aperture is less than described default maximum opening, and described second preset value is less than described first and presets
Value.
12. multiple on-line system according to claim 9 are it is characterised in that described main control module calculates according to below equation
Described first decision content：
A=[min (Tps1-2, T2B)-T2A]/[min (Tps1-2, T2B)-T1],
Wherein, a is described first decision content.
13. multiple on-line system according to any one of claim 9-12 are it is characterised in that described main control module is additionally operable to
Second judgement is calculated according to inlet temperature T2B that described saturation temperature Tps1 heats indoor set corresponding interior heat-exchanging component with this
Value, and according to described saturation temperature Tps1, this heat indoor set corresponding interior inlet temperature T2B of heat-exchanging component and Indoor Temperature
Degree T1 calculates the 3rd decision content, and heats the lasting heating operation time of indoor set, described second decision content according to described this
Judge whether this heats the heating capacity of indoor set not enough with described 3rd decision content.
14. multiple on-line system according to claim 13 are it is characterised in that described main control module heats indoor set at this
Continue the heating operation time more than the first Preset Time, described second decision content less than the 3rd preset value and described 3rd decision content
During less than described four preset value, judge that this heats the heating capacity of indoor set deficiency, and send this system to described part flow arrangement
Machine heating capacity deficiency open signal in hot cell.
15. multiple on-line system according to claim 14 are it is characterised in that described main control module heats indoor office at this
Machine or described second decision content are more than or equal to the 5th preset value or described 3rd decision content more than or equal to the 6th preset value
When, send this to described part flow arrangement and heat indoor mechanism hot scarce capacity shutdown signal, wherein, described 5th preset value is more than
Described 3rd preset value, described 6th preset value is more than described 4th preset value.
16. multiple on-line system according to claim 13 are it is characterised in that described main control module calculates according to below equation
Described second decision content and described 3rd decision content：
B=min (Tps1-2, T2B),
C=min (Tps1-2, T2B)-T1,
Wherein, b is described second decision content, and c is described 3rd decision content.
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