CN106595126A - Outdoor unit control system, heat pump unit and control method thereof - Google Patents
Outdoor unit control system, heat pump unit and control method thereof Download PDFInfo
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- CN106595126A CN106595126A CN201611175068.9A CN201611175068A CN106595126A CN 106595126 A CN106595126 A CN 106595126A CN 201611175068 A CN201611175068 A CN 201611175068A CN 106595126 A CN106595126 A CN 106595126A
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- electromagnetic valve
- temperature
- control
- supply water
- detecting
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention proposes an outdoor unit control system, a heat pump unit and a control method thereof. The outdoor unit control system comprises a refrigerant loop formed by serially connecting a compressor, a heat exchange element, a throttling device, a condenser and a separator; the throttling device includes a main throttling element, and at least one branch throttling element connected with the main throttling element in parallel; the branch throttling element is serially connected with an electromagnetic valve; the refrigerant loop is connected with a liquid spraying pipeline in parallel; an inlet end of the liquid spraying pipeline is arranged between the heat exchange element and the throttling device, and an outlet end is arranged between the condenser and the separator; and the liquid spraying pipeline is provided with a liquid spraying valve. The outdoor unit control system further comprises a controller; and the opening and the closing of the electromagnetic valve and the liquid spraying valve are controlled to adjust the flow and the temperature of a refrigerant entering the compressor to adjust the output capacity of an outdoor unit, so that the time of the water supply temperature reaching the highest set temperature is prolonged, the temperature reaching start and stop frequency of the outdoor unit is reduced, and the water supply temperature is stable.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of outer machine control system, source pump and its controlling party
Method.
Background technology
As people are constantly lifted to the consciousness of quality of life, in the winter time, increasing people understands Selection utilization floor heating
Mode carries out heating.For constant speed wind cooling cold and hot water source pump, under Smaller load (such as 10 DEG C or so of outdoor environment temperature)
During work, leaving water temperature will soon reach preset value, and press is constantly opened, stopped, and cause water supply fluctuating temperature larger, indoor temperature
Long-time does not reach more comfortable temperature.
For above-mentioned situation, there are two kinds of settling modes at present：(1) replace constant speed product using frequency conversion product, using frequency conversion
Control technology reduces ability output；(2) buffer tank is concatenated, so that the time shut down is extended to up to preset temperature, reduction stops
After machine, the change of supply water temperature.But, replace constant speed product, cost to increase huge using frequency conversion；Series buffer water tank, not only
Cost increases larger, and will take extra construction area.
The content of the invention
Present invention is primarily targeted at providing a kind of outer machine control system, it is intended to solve source pump in small load condition
Lower frequent start-stop, the problem for causing water supply fluctuating temperature larger.
For achieving the above object, outer machine control system proposed by the present invention, including by compressor, heat exchange element, throttling dress
Put, condenser and separator are connected the coolant loop to be formed, it is characterised in that the throttling arrangement include main road restricting element,
At least one branch road restricting element in parallel with the main road restricting element, the branch road restricting element are in series with electromagnetic valve；
The coolant loop is parallel with a hydrojet pipeline, and the hydrojet pipeline includes arrival end and the port of export, the arrival end
The pipeline being arranged between the heat exchange element and throttling arrangement, the port of export are arranged between the condenser and separator
Pipeline, the hydrojet pipeline is provided with the liquid injection valve of control piper flow；
The outer machine control system also includes controller, and the controller connects the liquid injection valve and electromagnetic valve, controls institute
The opening and closing of liquid injection valve and electromagnetic valve are stated, the fan-out capability of outer machine is adjusted.
Further, the outer machine control system also includes detection module, detects outer machine continuous at least twice operationally
Between when supply water temperature is reached highest setting temperature and is shut down less than preset value, start controller.
Further, the throttling arrangement include the tie point restricting element in parallel with main road restricting element, second
Road restricting element, the first electromagnetic valve connected with the tie point restricting element and is connected with the second branch road restricting element
Second electromagnetic valve, first electromagnetic valve and the second electromagnetic valve connect the controller.
Further, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve protected
Hold unlatching；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control is not turned off first electromagnetic valve or the second closed electromagnetic valve of state；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, and 0 ＜ TS- Tn3＜ TS- Tn1＜ TS, T is [0, TS] it is interval when, outer machine heat outputting
Amount is more than load absorption heat.
Further, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve protected
Hold unlatching；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn31When, the first electromagnetic valve or the second electromagnetic valve for controlling closed mode remains turned-off first
Open after Preset Time；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn31For the first saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn31＜ TS,
In T=TS- Tn31When, outer machine quantity of heat given up is equal to load absorption heat.
Further, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve protected
Hold unlatching；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control first electromagnetic valve or the second closed electromagnetic valve of opening；
When detecting T=TS- Tn11When, control the first electromagnetic valve and the second electromagnetic valve remains turned-off the second Preset Time
Afterwards, control the first electromagnetic valve and/or the second electromagnetic valve is opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, TS- Tn11For the second saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn1
＜ TS- Tn11＜ TS, in T=TS- Tn11When, outer machine quantity of heat given up is equal to load absorption heat.
Further, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve protected
Hold unlatching；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control first electromagnetic valve or the second closed electromagnetic valve of opening；
When detecting T=TS- Tn2When, control first electromagnetic valve and/or the second electromagnetic valve is opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, TS- Tn2Second temperature after declining for supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn2
＜ TS- Tn1＜ TS, T is from TS- Tn1It is down to TS- Tn2Period, outer machine quantity of heat given up are less than load absorption heat.
Further, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve protected
Hold unlatching；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn4When, the first electromagnetic valve or the second electromagnetic valve for controlling closed mode is opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn4The first temperature after declining for supply water temperature, 0 ＜ TS- Tn4＜ TS- Tn3＜ TS, T is from TS- Tn3It is down to TS- Tn4Period,
Outer machine quantity of heat given up is less than load absorption heat.
Further, when detecting TP≥TPH- Tn1When, control the liquid injection valve and open；
When detecting TP≤TPH- Tn2When, control the liquid injection valve and close；
Wherein, 0 ＜ TPH- Tn2＜ TPH- Tn1＜ TPH, TPFor delivery temperature, TPHFor default highest delivery temperature, TPH- Tn1
For first exhaust preset temperature, TPH- Tn2For second exhaust preset temperature.
The present invention also proposes a kind of source pump, and the source pump includes outer machine control system as above.
Another object of the present invention is to propose a kind of control method of source pump as above, the control method bag
Include following steps：
Detecting outer machine continuously just makes supply water temperature reach highest setting temperature less than preset value at least twice at runtime
When spending and shutting down, following control logic is run：
Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve keeps
Close；
When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, detect aerofluxuss temperature
When degree is less than second exhaust preset temperature, controls the liquid injection valve and close；
When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve and closes,
When the outer machine is again started up, the whole electromagnetic valves of control are opened.
Further, the control method is comprised the following steps：
Detecting outer machine continuously just makes supply water temperature reach highest setting temperature less than preset value at least twice at runtime
When spending and shutting down, following control logic is run：
Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve keeps
Close；
When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, detect aerofluxuss temperature
When degree is less than second exhaust preset temperature, controls the liquid injection valve and close；
When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve and closes,
When the outer machine is again started up, the whole electromagnetic valves of control are opened.
Further, it is described when detecting the supply water temperature and reaching the first preset temperature, control at least one electromagnetic valve
The step of closing, specifically include：
When detecting supply water temperature and reaching the first preset temperature, the first electromagnetic valve of control or the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and shape is closed in control
First electromagnetic valve or the second electromagnetic valve of state is opened after remaining turned-off the first Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls closed mode
First electromagnetic valve or the second electromagnetic valve are opened.
Further, it is described when detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control
The step of, specifically include：
When detecting supply water temperature and reaching the second preset temperature, the first electromagnetic valve of control and the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and control first is electric
After magnet valve and the second electromagnetic valve remain turned-off the second Preset Time, the first electromagnetic valve of control and/or the second electromagnetic valve are opened；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first electromagnetic valve
And/or second electromagnetic valve open.
The outer machine control system of the present invention, including by compressor, heat exchange element, throttling arrangement, condenser and separator string
The coolant loop that connection is formed, the throttling arrangement include at least in parallel with the main road restricting element of main road restricting element
Individual branch road restricting element, the branch road restricting element are in series with electromagnetic valve, and the coolant loop is parallel with a hydrojet pipeline, the spray
The arrival end of liquid pipeline is arranged between the heat exchange element and throttling arrangement, and the port of export is arranged at the condenser and separator
Between, the hydrojet pipeline is provided with the liquid injection valve for controlling the piping flow, and the outer machine control system also includes that connection is described
The controller of electromagnetic valve and liquid injection valve, by the opening and closing for controlling electromagnetic valve and liquid injection valve, is adjusted into the cold of compressor
Matchmaker's flow and refrigerant temperature, and then the fan-out capability of outer machine is adjusted, to extend the time that supply water temperature reaches highest setting temperature,
So as to reduce outer machine to Wen Qi, the frequency stopped, it is ensured that water supply water temperature stability.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the structural representation of outer one embodiment of machine control system of the present invention；
Control logic figures of the Fig. 2 for Fig. 1 China and foreign countries machine control system；
Fig. 3 is the flow chart of one embodiment of control method of source pump of the present invention；
Fig. 4 is the flow chart of another embodiment of control method of source pump of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Outer machine | 154 | First electromagnetic valve |
| 11 | Compressor | 155 | Second electromagnetic valve |
| 12 | Liquor separator | 20 | Coolant loop |
| 13 | Condenser | 21 | Hydrojet pipeline |
| 15 | Throttling arrangement | 211 | Liquid injection valve |
| 151 | First throttle element | 30 | Heat exchange element |
| 152 | Tie point restricting element | 40 | Heating loop |
| 153 | Second branch road restricting element |
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The present invention proposes a kind of outer machine control system, is applied to source pump.
With reference to Fig. 1, Fig. 1 is the structural representation of outer one embodiment of machine control system of the present invention.
In the present embodiment, the outer machine control system is included by compressor 11, heat exchange element 30, throttling arrangement 15, condensation
Device 13, and the coolant loop 20 that formed of the series connection of separator 12, the throttling arrangement 15 include main road restricting element 151, and described
At least one branch road restricting element of 151 parallel connection of main road restricting element, the branch road restricting element are in series with electromagnetic valve；
The coolant loop 20 is parallel with a hydrojet pipeline 21, and the hydrojet pipeline 21 includes arrival end and the port of export, described
Arrival end is arranged at the pipeline between the heat exchange element 30 and throttling arrangement 15, and the port of export is arranged at the condenser 13
With the pipeline between separator 12, the hydrojet pipeline 21 is provided with the liquid injection valve 211 of control piper flow；
The outer machine control system also includes controller (not shown), and the controller connects the liquid injection valve 211 and electricity
Magnet valve, controls the opening and closing of the liquid injection valve 211 and electromagnetic valve, adjusts the fan-out capability of outer machine 10.
In the present embodiment, the outer machine control system is mainly used in control by compressor 11, heat exchange element 30, throttling arrangement
15th, condenser 13, and separator 12 series connection formed 20 high temperature high pressure of coolant loop gaseous coolant output, control it is cold
Matchmaker's flow is adjusting the rate of change of supply water temperature, and then extends the outer machine being made up of compressor 11, separator 12, condenser 13
10 operation duration, reduces which and opens, stops frequency.
In the present embodiment, the throttling arrangement 15 includes main road restricting element 151, and the main road restricting element 151
At least one branch road restricting element in parallel, the branch road restricting element are in series with electromagnetic valve, and the coolant loop 20 is parallel with
One hydrojet pipeline 21, the hydrojet pipeline 21 include arrival end and the port of export, and the arrival end is arranged at heat exchange element 30 with throttling
Pipeline between device 15, the port of export are arranged at the pipeline between the condenser 13 and separator 12, the sparge pipe
Road 21 is provided with the liquid injection valve 211 that control coolant is entered, so as to will be to be heated in heat exchange element 30 with heating loop 40
Low temperature liquid coolant after water body heat exchange, is delivered in coolant loop 20 by hydrojet pipeline 21, and is absorbed in condenser 13
External environment condition heat of vaporization into gaseous coolant be neutralized, to reduce the delivery temperature in outer machine control system, reduce outer machine
To the frequency that temperature is shut down.
Further, a controller is additionally provided with the outer machine control system, on the controller connection hydrojet pipeline 21
Liquid injection valve 211 and throttling arrangement 15 in electromagnetic valve, by the opening and closing for controlling electromagnetic valve and liquid injection valve 211, adjust
Cold medium flux and refrigerant temperature in coolant loop 20, and then the rate of change of supply water temperature can be controlled, extend outer machine 10
Operation duration, reduces which and opens, stops frequency, it is ensured that water supply water temperature stability.
Further, the outer machine control system also includes detection module (not shown), detects outer machine 10 continuous at least two
It is secondary when supply water temperature is reached highest setting temperature and is shut down less than preset value at runtime, start controller.
In the present embodiment, the outer machine control system also includes the detection module of detection supply water temperature, and the detection module can
To be temperature sensor, can also be the electronic thermometer that is connected with electric-control system, so as to detect outer machine 10 continuous at least
When supply water temperature is reached highest setting value and is shut down less than preset value at runtime twice, start controller and enter control
Logic, the running of the subsequent cycle of external machine 10 are adjusted.
With further reference to Fig. 1, the throttling arrangement 15 includes the tie point throttling unit in parallel with main road restricting element 151
Part 152, the second branch road restricting element 153, the first electromagnetic valve 154 connected with the tie point restricting element 152, and with
Second electromagnetic valve 155 of the series connection of two branch road restricting element 153, first electromagnetic valve 154 and the second electromagnetic valve 155 connect described
Controller (not shown).
In the present embodiment, the throttling arrangement 15 includes the tie point throttling unit in parallel with main road restricting element 151
Part 152, the second branch road restricting element 153, the first electromagnetic valve 154 connected with the tie point restricting element 152, and with
Second electromagnetic valve 155 of the series connection of two branch road restricting element 153, first electromagnetic valve 154 and the second electromagnetic valve 155 are all connected with outer
Controller in machine control system, controls the opening and closing of the first electromagnetic valve 154 and the second electromagnetic valve 155 by controller,
The coolant quantity into condenser 13 is adjusted, and then controls the coolant quantity in 13 interior suction thermal evaporation of condenser, and then it is high to adjust high temperature
Pressure gaseous coolant output, it is ensured that water supply water temperature is stablized, in other embodiments, the throttling arrangement 15 can also be included more
Branch road restricting element more in parallel with main road restricting element 151, the electromagnetic valve connected with the branch road restricting element.
Further, with reference to Fig. 1 and 2, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve 154
Keep it turned on the second electromagnetic valve 155；
When detecting T=TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out；
When detecting T=TS- Tn1When, control is not turned off first electromagnetic valve 154 or the second electromagnetic valve 155 of state and closes；
When detecting T=TSWhen, the outer machine 10 is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, and 0 ＜ TS- Tn3＜ TS- Tn1＜ TS, T is [0, TS] it is interval when, outer machine heat outputting
Amount is more than load absorption heat.
In the present embodiment, outer machine 10 open when into control logic as described in Figure 2, by detection module to supplying water temperature
Degree T is detected, in supply water temperature T not up to the first preset temperature TS- Tn3Before, the first electromagnetic valve 154 is controlled by controller
Keep it turned on the second electromagnetic valve 155, so that the maximum coolant quantity in coolant loop 20 is interior from outside in condenser 13
Environment absorbs heat of vaporization into gaseous coolant, after compressing into compressor 11, exports gaseous coolant and the heating of High Temperature High Pressure
Hot water to be added in loop 40 realizes heat exchange in heat exchange element 30, makes supply water temperature be rapidly reached the first preset temperature TS-
Tn3, T is reached in supply water temperature TS- Tn3When, in order to extend the operation duration of outer machine 10, the first electromagnetic valve 154 or the second of control is electric
Magnet valve 155 is closed, and to be lowered into the flow of the gaseous coolant of compressor 11, and then reduces the climbing speed of supply water temperature, and one
If as in the case of control after the first electromagnetic valve 154 or the second electromagnetic valve 155 close, the heat of the output of outer machine 10 is still greater than heating
The heat of load absorption, supply water temperature T may proceed to rise until reaching the second preset temperature TS- Tn1, now, in order to prolong again
The operation duration of long outer machine 10, controls to close also in first electromagnetic valve 154 or the second electromagnetic valve 155 of opening, if this
When the outer output of machine 10 the heat that still absorbs more than heat load of heat, supply water temperature T still can be with the operation of outer machine 10
Continue to rise, until it reaches highest setting temperature TS, namely in (TS- Tn1, TS) interval interior, control 154 He of the first electromagnetic valve
Second electromagnetic valve 155 is always maintained at closed mode, reaches highest setting temperature T supply water temperature T is detectedSWhen, outer machine 10 is certainly
It is dynamic to shut down, until after next logic loops are opened, the first electromagnetic valve 154 of control and the second electromagnetic valve 155 are opened.In control first
After electromagnetic valve 154 and/or the second electromagnetic valve 155 are closed, if the less coolant that heat exchange is participated in coolant loop 20 is being absorbed
Substantial amounts of outside heat further makes delivery temperature TPReach first exhaust preset temperature TPH- Tn1When, in order to avoid because of delivery temperature
Reach TPHCause outer machine 10 to be shut down, control liquid injection valve 211 is opened, be input into the low temperature liquid coolant through heat exchange element 30, with
Delivery temperature is reduced, delivery temperature T is being detectedPIt is down to second exhaust preset temperature TPH- Tn2When, control the liquid injection valve 211
Close, 0 ＜ TS- Tn3＜ TS- Tn1＜ TS, T is [0, TS] it is interval when, outer machine quantity of heat given up is more than load absorption heat.
Further, with reference to Fig. 1 and 2, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve 154
Keep it turned on the second electromagnetic valve 155；
When detecting T=TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out；
When detecting T=TS- Tn31When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling closed mode keeps closing
Open after closing the first Preset Time；
When detecting T=TSWhen, the outer machine 10 is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn31For the first saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn31＜ TS,
In T=TS- Tn31When, outer machine quantity of heat given up is equal to load absorption heat.
In the present embodiment, outer machine 10 open when into control logic as described in Figure 2, by detection module to supplying water temperature
Degree T is detected, in supply water temperature T not up to the first preset temperature T=TS- Tn3Before, the first electromagnetic valve is controlled by controller
154 and second electromagnetic valve 155 keep it turned on so that the maximum coolant quantity in coolant loop 20 in the condenser 13 from outer
Portion's environment absorbs heat of vaporization into gaseous coolant, after compressing into compressor 11, exports the gaseous coolant of High Temperature High Pressure and supplies
Hot water to be added in warm loop 40 realizes heat exchange in heat exchange element 30, makes supply water temperature be rapidly reached the first preset temperature T
=TS- Tn3, T=T is reached in supply water temperature TS- Tn3When, in order to extend the operation duration of outer machine 10, control the first electromagnetic valve
154 or second electromagnetic valve 155 close, to be lowered into the flow of the gaseous coolant of compressor 11, and then reduce supply water temperature
Climbing speed, may proceed to rise the first saturation temperature T until supply water temperature in supply water temperature TS- Tn31When, outer machine 10 is exported
Heat be equal to heat load absorb heat, now supply water temperature T no longer raise, in order to ensure the Effec-tive Function of outer machine 10,
Supply water temperature T is being detected in TS- Tn31When no longer raising, first electromagnetic valve 154 or the second electromagnetic valve of closed mode are controlled
155 remain turned-off unlatching after the first Preset Time, and the heat of the now output of outer machine 10 is more than the heat that heat load absorbs again,
Supply water temperature T persistently can rise again, until it reaches highest setting temperature TS, namely in (TS- Tn31, TS) interval interior, first is electric
Magnet valve 154 and the second electromagnetic valve 155 keep it turned on, and reach highest setting temperature T supply water temperature T is detectedSWhen, outward
10 autostop of machine, until after next logic loops are opened, the first electromagnetic valve 154 of control and the second electromagnetic valve 155 are opened.In control
After making the first electromagnetic valve 154 or the closing of the second electromagnetic valve 155, if delivery temperature T in coolant loop 20PReach first exhaust to preset
Temperature TPH- Tn1When, in order to avoid reaching T because of delivery temperaturePHCause outer machine 10 to be shut down, control liquid injection valve 211 open, make through
The low temperature liquid coolant input of heat exchange element 30, reduces delivery temperature, is detecting delivery temperature TPIt is down to second exhaust to preset
Temperature TPH- Tn2When, control the liquid injection valve 211 and close, 0 ＜ TS- Tn3＜ TS- Tn31＜ TS, in T=TS- Tn31When, outer machine
Quantity of heat given up is equal to load absorption heat.
Further, with reference to Fig. 1 and 2, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve 154
Keep it turned on the second electromagnetic valve 155；
When detecting T=TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out；
When detecting T=TS- Tn1When, control first electromagnetic valve or the second closed electromagnetic valve of opening；
When detecting T=TS- Tn11When, control the first electromagnetic valve and the second electromagnetic valve remains turned-off the second Preset Time
Afterwards, control the first electromagnetic valve and/or the second electromagnetic valve is opened；
When detecting T=TSWhen, the outer machine 10 is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, TS- Tn11For the second saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn1
＜ TS- Tn11＜ TS, in T=TS- Tn11When, outer machine quantity of heat given up is equal to load absorption heat.
In the present embodiment, outer machine 10 open when into control logic as described in Figure 2, by detection module to supplying water temperature
Degree T is detected, in supply water temperature T not up to the first preset temperature T=TS- Tn3Before, the first electromagnetic valve is controlled by controller
154 and second electromagnetic valve 155 keep it turned on so that the maximum coolant quantity in coolant loop 20 in the condenser 13 from outer
Portion's environment absorbs heat of vaporization into gaseous coolant, after compressing into compressor 11, exports the gaseous coolant of High Temperature High Pressure and supplies
Hot water to be added in warm loop 40 realizes heat exchange in heat exchange element 30, makes supply water temperature be rapidly reached the first preset temperature T
=TS- Tn3, T=T is reached in supply water temperature TS- Tn3When, in order to extend the operation duration of outer machine 10, control the first electromagnetic valve
154 or second electromagnetic valve 155 close, to be lowered into the flow of the gaseous coolant of compressor 11, and then reduce supply water temperature
Climbing speed, if outer machine 10 output heat more than heat load absorb heat, so supply water temperature T may proceed to rise until
Reach the second preset temperature TS- Tn1, in order to extend the operation duration of outer machine 10, control opening the first electromagnetic valve 154 or
Second electromagnetic valve 155 cuts out, and further reduces the climbing speed of supply water temperature, rises to the of supply water temperature in supply water temperature T
Two saturation temperatures TS- Tn11When, the heat of the output of outer machine 10 is equal to the heat that heat load absorbs, and supply water temperature is no longer raised,
Namely in (TS- Tn1, TS- Tn11) interval interior, control first electromagnetic valve 154 and the second electromagnetic valve 155 remains turned-off shape
State, in order to ensure the Effec-tive Function of outer machine 10, is detecting supply water temperature T in TS- Tn11When no longer raising, the first electromagnetism is controlled
After valve 154 and the second electromagnetic valve 155 remain turned-off the second Preset Time, the first electromagnetic valve of control and/or the second electromagnetic valve are opened,
The heat that the heat of the now output of outer machine 10 is absorbed more than heat load again, supply water temperature T persistently can rise again, until reaching
To highest setting temperature TS, namely in (TS- Tn11, TS) it is interval in, the first electromagnetic valve 154 and/or the second electromagnetic valve 155 keep
Opening, reaches highest setting temperature T supply water temperature T is detectedSWhen, 10 autostop of outer machine, until next logic is followed
After ring is opened, the first electromagnetic valve 154 of control and the second electromagnetic valve 155 are opened.Controlling, the first electromagnetic valve 154 and/or second is electric
After magnet valve 155 is closed, if the less coolant that heat exchange is participated in coolant loop 20 is absorbing substantial amounts of outside heat and then is making
Delivery temperature TPReach first exhaust preset temperature TPH- Tn1When, in order to avoid reaching T because of delivery temperaturePHOuter machine 10 is caused to stop
Machine, control liquid injection valve 211 are opened, and are input into the low temperature liquid coolant through heat exchange element 30, to reduce delivery temperature, in detection
To delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control the liquid injection valve 211 and close, 0 ＜ TS- Tn3＜
TS- Tn1＜ TS- Tn11＜ TS, in T=TS- Tn1When, outer machine quantity of heat given up is equal to load absorption heat.
Further, with reference to Fig. 1 and 2, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve 154
Keep it turned on the second electromagnetic valve 155；
When detecting T=TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out；
When detecting T=TS- Tn1When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling opening cuts out；
When detecting T=TS- Tn2When, control first electromagnetic valve 154 and/or the second electromagnetic valve 155 is opened；
When detecting T=TSWhen, the outer machine 10 is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn1For the second preset temperature of supply water temperature, TS- Tn2Second temperature after declining for supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn2
＜ TS- Tn1＜ TS, T is from TS- Tn1It is down to TS- Tn2Period, outer machine quantity of heat given up are less than load absorption heat.
In the present embodiment, outer machine 10 is when opening, into control logic as shown in Figure 2, by detection module to supplying water
Temperature T is detected, in supply water temperature T not up to the first preset temperature T=TS- Tn3Before, the first electromagnetism is controlled by controller
Valve 154 and the second electromagnetic valve 155 keep it turned on, so that the maximum coolant quantity in coolant loop 20 is in 13 interior suction of condenser
External environment condition heat of vaporization is received into gaseous coolant, after compressing into compressor 11, the gaseous coolant of High Temperature High Pressure is exported and is supplied
Hot water to be added in warm loop 40 realizes heat exchange in heat exchange element 30, makes supply water temperature be rapidly reached the first preset temperature T
=TS- Tn3, T=T is reached in supply water temperature TS- Tn3When, in order to extend the run time of outer machine 10, control the first electromagnetic valve
154 or second electromagnetic valve 155 close, if outer machine 10 output heat more than heat load absorb heat, so supplying water temperature
Degree T can continue to rise with the operation of outer machine 10, until it reaches the second preset temperature TS- Tn1When, namely in (TS-Tn3, TS-
Tn1) interval interior, one of the first electromagnetic valve 154 and the second electromagnetic valve 155 are remained off, and are reached second in supply water temperature and are preset
Temperature TS- Tn1When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling opening cuts out, if now outer machine 10 is exported
Heat less than the heat that heat load absorbs, i.e. when the first electromagnetic valve 154 and the second electromagnetic valve 155 are turned off, supply water temperature
Downward trend is presented, namely in (TS- Tn1, TS- Tn2) it is interval in, the first electromagnetic valve 154 and the second electromagnetic valve 155 are remained turned-off
State, in order to ensure stablizing for supply water temperature T, reaches T supply water temperature T is detectedS- Tn2When, control the first of closed mode
Electromagnetic valve 154 or the second electromagnetic valve 155 are opened, and the heat of the now output of outer machine 10 is more than the heat that heat load absorbs again,
Water temperature rises, and detects T=TS- Tn1When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling opening cuts out, instead
155 opening of the first electromagnetic valve 154 and the second electromagnetic valve is recalled to after performing the first Preset Time of above-mentioned control again, is hereafter supplied water
Temperature T persistently can rise again, until it reaches highest setting temperature TS, highest setting temperature T is reached supply water temperature T is detectedS
When, 10 autostop of outer machine, until after next logic loops are opened, the first electromagnetic valve 154 of control and the second electromagnetic valve 155 are opened
Open.After the first electromagnetic valve 154 and/or the closing of the second electromagnetic valve 155 is controlled, if the less of heat exchange is participated in coolant loop 20
Coolant is absorbing substantial amounts of outside heat and then is making delivery temperature TPReach first exhaust preset temperature TPH- Tn1When, in order to keep away
Exempt to reach T because of delivery temperaturePHOuter machine 10 is caused to be shut down, control liquid injection valve 211 is opened, and makes the low temperature liquid through heat exchange element 30
Coolant is input into, and to reduce delivery temperature, is detecting delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control institute
State liquid injection valve 211 to close, 0 ＜ TS- Tn3＜ TS- Tn2＜ TS- Tn1＜ TS, T is from TS- Tn1It is down to TS- Tn2Period, outer machine
Quantity of heat given up is less than load absorption heat.
Further, with reference to Fig. 1 and 2, when detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve 154
Keep it turned on the second electromagnetic valve 155；
When detecting T=TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out；
When detecting T=TS- Tn4When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling closed mode is opened；
When detecting T=TSWhen, the outer machine 10 is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS-
Tn4The first temperature after declining for supply water temperature, 0 ＜ TS- Tn4＜ TS- Tn3＜ TS, T is from TS- Tn3It is down to TS- Tn4Period,
Outer machine quantity of heat given up is less than load absorption heat.
In the present embodiment, outer machine 10 is when opening, into control logic as shown in Figure 2, by detection module to supplying water
Temperature T is detected, in supply water temperature T not up to the first preset temperature T=TS- Tn3Before, the first electromagnetism is controlled by controller
Valve 154 and the second electromagnetic valve 155 keep it turned on, so that the maximum coolant quantity in coolant loop 30 is in 12 interior suction of condenser
External environment condition heat of vaporization is received into gaseous coolant, after compressing into compressor 11, the gaseous coolant of High Temperature High Pressure is exported and is supplied
Hot water to be added in warm loop 40 realizes heat exchange in heat exchange element 30, makes supply water temperature be rapidly reached the first preset temperature T
=TS- Tn3, T=T is reached in supply water temperature TS- Tn3When, in order to extend the run time of outer machine 10, control the first electromagnetic valve
154 or second electromagnetic valve 155 close, if now outer machine 10 output heat less than heat load absorb heat, i.e., first is electric
When magnet valve 154 or the second electromagnetic valve 155 are closed, supply water temperature is presented downward trend, in (TS- Tn3, TS- Tn4) interval interior, the
One of one electromagnetic valve 154 and the second electromagnetic valve 155 are remained off, and in order to ensure stablizing for supply water temperature T, are detecting confession
Coolant-temperature gage T reaches TS- Tn4When, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling closed mode is opened, now outer machine 10
The heat that the heat of output is absorbed more than heat load again, supply water temperature T persistently can rise again, and water temperature rises to T=
TS- Tn3When, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out, when performing repeatedly above-mentioned control second and presetting
Between after recall to 155 opening of the first electromagnetic valve 154 and the second electromagnetic valve, hereafter leaving water temperature rises until reach highest setting
Temperature TS, highest setting temperature T is reached supply water temperature T is detectedSWhen, 10 autostop of outer machine, until next logic loops are opened
Open.After the first electromagnetic valve 154 or the closing of the second electromagnetic valve 155 is controlled, if the less cold of heat exchange is participated in coolant loop 20
Matchmaker is absorbing substantial amounts of outside heat and then is making delivery temperature TPReach first exhaust preset temperature TPH- Tn1When, in order to avoid
Because delivery temperature reaches TPHOuter machine 10 is caused to be shut down, control liquid injection valve 211 is opened, and makes the low temperature liquid through heat exchange element 30 cold
Matchmaker is input into, and to reduce delivery temperature, is detecting delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control is described
Liquid injection valve 211 is closed, 0 ＜ TS- Tn4＜ TS- Tn3＜ TS, T is from TS-Tn3It is down to TS- Tn4Period, outer machine quantity of heat given up are little
In load absorption heat.
The present invention also provides a kind of source pump, and the source pump includes outer machine control system as above.
With reference to Fig. 1, the source pump of the present embodiment includes outer machine control system as above, the outer machine control system bag
Include by compressor 11, heat exchange element 30, throttling arrangement 15, condenser 13, and separator 12 connect the coolant loop 20 that formed, institute
Stating throttling arrangement 15 includes main road restricting element 151, at least one branch road throttling unit in parallel with the main road restricting element 151
Part, the branch road restricting element are in series with electromagnetic valve, and the coolant loop 20 is parallel with a hydrojet pipeline 21, the hydrojet pipeline 21
Arrival end be arranged between the heat exchange element 30 and throttling arrangement 15, the port of export is arranged at the condenser 13 and separator
Between 12, the hydrojet pipeline 21 is provided with the liquid injection valve 211 for controlling the piping flow, and the outer machine control system also includes connecting
Connect the controller of the electromagnetic valve and liquid injection valve 211, by the opening and closing for controlling electromagnetic valve and liquid injection valve 211, adjust into
Enter the cold medium flux and refrigerant temperature of compressor 11, and then adjust the fan-out capability of outer machine 10, to extend supply water temperature arrival most
The time of high design temperature, so as to reduce outer machine 10 to Wen Qi, the frequency stopped, it is ensured that water supply water temperature stability.
Present invention further propose that a kind of control method of source pump.
With reference to Fig. 3, Fig. 3 is the flow chart of one embodiment of control method of source pump of the present invention.
In the present embodiment, the control method of the source pump, comprises the following steps：
S10：Detect outer machine and continuously just make supply water temperature reach highest less than preset value at runtime at least twice and set
Constant temperature degree and when shutting down, run following control logic：
S11：Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve
Remain turned-off；
S12：When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
S13：When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, the row of detecting
When temperature degree is less than second exhaust preset temperature, controls the liquid injection valve and close；
S14：When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
S15：When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve
Close, when the outer machine is again started up, the whole electromagnetic valves of control are opened.
In the present embodiment, with further reference to Fig. 1 to 2, when heating is realized in the source pump operation, in order in certain journey
On degree, the outer machine 10 of reduction source pump frequent start-stop in running, causes water supply fluctuating temperature larger, outer detecting
In 10 continuous running of machine, continuously run time at least twice just makes supply water temperature reach highest setting temperature less than preset value
When spending and shutting down, run with reference to following control logic, before supply water temperature reaches the first preset temperature, control electromagnetic valve whole
Keep it turned on, while control liquid injection valve 211 close, so that the maximum coolant quantity in coolant loop 20 absorbs outer in condenser 13
The heat of vaporization of portion's environment is capable of the gaseous coolant of the higher High Temperature High Pressure of output temperature again Jing after the compression of compressor 11, to supply
Hot water to be added in warm loop 40 can be changed with the gaseous coolant of High Temperature High Pressure within the most short time in heat exchange element 30
Heat, reaches default first supply water temperature, realizes preliminary heating, in order to extend the run time of outer machine 10, delays supply water temperature
The speed of highest setting temperature is reached, when detecting supply water temperature and reaching the first preset temperature, at least one electromagnetic valve is controlled
Close, be lowered into the cold medium flux of compressor 11, if now the 20 interior less coolant for participating in heat exchange of coolant loop is absorbing
Substantial amounts of outside heat and then when making the delivery temperature reach first exhaust preset temperature, in order to avoid because delivery temperature reach it is pre-
If highest delivery temperature and cause outer machine 10 to be shut down, control liquid injection valve 211 open, make the low temperature liquid through heat exchange element 30 cold
Matchmaker is input into, and to reduce delivery temperature, is detecting delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control is described
Liquid injection valve 211 is closed.After at least one closed electromagnetic valve is controlled, if what the heat of the output of outer machine 10 was absorbed more than heat load
Heat, supply water temperature can continue to raise with the operation of outer machine 10, in order to further extend the run time of outer machine 10, extend and supply water
Temperature reaches the time of highest setting temperature, when detecting supply water temperature and reaching the second preset temperature, the whole electromagnetic valves of control
Close, it is now minimum through the cold medium flux of condenser 13, if now the 20 interior less coolant for participating in heat exchange of coolant loop exists
When absorbing substantial amounts of outside heat and then making delivery temperature reach first exhaust preset temperature, in order to avoid reaching because of delivery temperature
Outer machine 10 is caused to be shut down to default highest delivery temperature, control liquid injection valve 211 is opened, and makes the Low Temperature Liquid through heat exchange element 30
State coolant is input into, to reduce delivery temperature, detecting delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control
Make the liquid injection valve 211 to close, after electromagnetic valve is fully closed, if outer machine quantity of heat given up absorbs heat more than heat load, for water temperature
Degree may proceed to rise, and when supply water temperature reaches highest setting temperature, 10 autostop of outer machine is opened again outer machine 10 is detected
When dynamic, the whole electromagnetic valves of control are opened, and are circulated into next control logic, and the control method is by controlling electromagnetic valve and liquid injection valve
211 fan-out capability opened and closed to adjust outer machine 10, extends the time that supply water temperature reaches highest setting temperature, so as to
Reduce outer machine 10 to Wen Qi, the frequency stopped, it is ensured that water supply water temperature stability.
With reference to Fig. 4, Fig. 4 is the flow chart of another embodiment of control method of source pump of the present invention.
In the present embodiment, the control method of the source pump, comprises the following steps：
S10：Detect outer machine and continuously just make supply water temperature reach highest less than preset value at runtime at least twice and set
Constant temperature degree and when shutting down, run following control logic：
S11：Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve
Remain turned-off；
S12：When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
S14：When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
S13：When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, the row of detecting
When temperature degree is less than second exhaust preset temperature, controls the liquid injection valve and close；
S15：When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve
Close, when the outer machine is again started up, the whole electromagnetic valves of control are opened.
In the present embodiment, with further reference to Fig. 1 to 2, when heating is realized in the source pump operation, in order in certain journey
On degree, the outer machine 10 of reduction source pump frequent start-stop in running, causes water supply fluctuating temperature larger, outer detecting
In 10 continuous running of machine, continuously run time at least twice just makes supply water temperature reach highest setting temperature less than preset value
When spending and shutting down, run with reference to following control logic, before supply water temperature reaches the first preset temperature, control electromagnetic valve whole
Keep it turned on, while control liquid injection valve 211 close, so that the maximum coolant quantity in coolant loop 20 absorbs outer in condenser 13
The heat of vaporization of portion's environment into the higher gaseous coolant of temperature, so as to again Jing after the compression of compressor 11 can output temperature it is higher
The gaseous coolant of High Temperature High Pressure, so that the hot water to be added in heating loop 40 can be within the most short time in heat exchange element 30
The interior gaseous coolant with High Temperature High Pressure exchanges heat, and reaches default first supply water temperature, realizes preliminary heating, in order to extend outer machine 10
Run time, delay supply water temperature to reach the speed of highest setting temperature, reach the first default temperature supply water temperature is detected
When spending, at least one closed electromagnetic valve is controlled, the cold medium flux of compressor 11 is lowered into, closed at least one electromagnetic valve is controlled
After closing, if the heat of the output of outer machine 10 is more than the heat that heat load absorbs, supply water temperature can continue to rise with the operation of outer machine 10
Height, in order to further extend the run time of outer machine 10, extends the time that supply water temperature reaches highest setting temperature, is detecting
When supply water temperature reaches the second preset temperature, the whole closed electromagnetic valves of control are now minimum through the cold medium flux of condenser 13,
If the less coolant that heat exchange is now participated in coolant loop 20 is absorbing substantial amounts of outside heat and then is reaching delivery temperature
During to first exhaust preset temperature, in order to avoid causing outer machine 10 to be shut down because delivery temperature reaches default highest delivery temperature,
Control liquid injection valve 211 is opened, and is input into the low temperature liquid coolant through heat exchange element 30, to reduce delivery temperature, is being detected
Delivery temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control the liquid injection valve 211 and close after electromagnetic valve is fully closed, if
Outer machine quantity of heat given up absorbs heat more than heat load, and supply water temperature may proceed to rise, and reach highest setting temperature in supply water temperature
When spending, 10 autostop of outer machine, when detecting outer machine 10 and being again started up, the whole electromagnetic valves of control are opened, into next control
Logic loops, the control method adjust the output energy of outer machine 10 by the opening and closing of control electromagnetic valve and liquid injection valve 211
Power, extends the time that supply water temperature reaches highest setting temperature, so as to reduce outer machine 10 to Wen Qi, the frequency stopped, it is ensured that supply water
Water temperature stability.
Further, the throttling arrangement includes the first electromagnetic valve and the second electromagnetic valve, described to detect the confession water temperature
Degree is when reaching the first preset temperature, the step of at least one closed electromagnetic valve of control, specifically includes：
When detecting supply water temperature and reaching the first preset temperature, the first electromagnetic valve of control or the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and shape is closed in control
First electromagnetic valve or the second electromagnetic valve of state is opened after remaining turned-off the first Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls closed mode
First electromagnetic valve or the second electromagnetic valve are opened.
In the present embodiment, with reference to Fig. 1, the throttling arrangement 15 includes the first electromagnetic valve 154 and the second electromagnetic valve 155,
When detecting supply water temperature and reaching the first preset temperature, the first electromagnetic valve 154 of control or the second electromagnetic valve 155 are closed；If this
When coolant loop 20 in participate in the less coolant of heat exchange and absorbing substantial amounts of outside heat and then making delivery temperature reach the
During one aerofluxuss preset temperature, in order to avoid causing outer machine 10 to be shut down because delivery temperature reaches default highest delivery temperature, control
Liquid injection valve 211 is opened, and is input into the low temperature liquid coolant through heat exchange element 30, is being detected aerofluxuss temperature to reduce delivery temperature
Degree TPIt is down to second exhaust preset temperature TPH- Tn2When, control the liquid injection valve 211 and close；Detect supply water temperature no longer to raise
When, the quantity of heat given up of outer machine 10 is equal to heat load and absorbs heat, and in order to ensure the Effec-tive Function of outer machine 10, control is in closing
First electromagnetic valve 154 or the second electromagnetic valve 155 of filling is opened after remaining turned-off the first Preset Time, so that outer machine 10 is being supplied
Coolant-temperature gage is shut down when reaching highest setting temperature, it is ensured that the normal start and stop of outer machine 10；If the first electromagnetic valve 154 or the second electromagnetic valve
After 155 close, the quantity of heat given up of outer machine 10 is less than the absorption heat of heat load, and supply water temperature can be presented downward trend, in inspection
When measuring supply water temperature decline, the first electromagnetic valve 154 or the second electromagnetic valve 155 for controlling closed mode is opened, and water temperature rises to
During the first preset temperature, control first electromagnetic valve 154 or the second electromagnetic valve 155 cuts out, perform repeatedly above-mentioned control first
155 opening of the first electromagnetic valve 154 and the second electromagnetic valve is recalled to after Preset Time, hereafter leaving water temperature rises to shutdown, with
Ensure that supply water temperature is maintained within the scope of default temperature.
Further, the throttling arrangement includes the first electromagnetic valve and the second electromagnetic valve, described to detect the confession water temperature
Degree is when reaching the second preset temperature, the step of control whole closed electromagnetic valves, specifically includes：
When detecting supply water temperature and reaching the second preset temperature, the first electromagnetic valve of control and the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and control first is electric
After magnet valve and the second electromagnetic valve remain turned-off the second Preset Time, the first electromagnetic valve of control and/or the second electromagnetic valve are opened；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first electromagnetic valve
And/or second electromagnetic valve open.
In the present embodiment, with reference to Fig. 1, the throttling arrangement 15 includes the first electromagnetic valve 154 and the second electromagnetic valve 155,
When detecting supply water temperature and reaching the second preset temperature, the first electromagnetic valve 154 of control and the second electromagnetic valve 155 are closed；If this
When coolant loop 20 in participate in the less coolant of heat exchange and absorbing substantial amounts of outside heat and then making delivery temperature reach the
During one aerofluxuss preset temperature, in order to avoid causing outer machine 10 to be shut down because delivery temperature reaches default highest delivery temperature, control
Liquid injection valve 211 is opened, and is input into the low temperature liquid coolant through heat exchange element 30, to reduce delivery temperature, is being detected aerofluxuss
Temperature TPIt is down to second exhaust preset temperature TPH- Tn2When, control the liquid injection valve 211 and close；Detect supply water temperature no longer to rise
Gao Shi, the quantity of heat given up of outer machine 10 are equal to heat load and absorb heat, in order to ensure the Effec-tive Function of outer machine 10, in the first electromagnetism
After valve 154 and the second electromagnetic valve 155 remain turned-off the second Preset Time, the second electromagnetic valve 154 and/or the second electromagnetic valve are controlled
155 open, so that outer machine 10 is shut down when supply water temperature reaches highest setting temperature, it is ensured that the normal start and stop of outer machine 10；If
After first electromagnetic valve 154 and the second electromagnetic valve 155 are closed, the quantity of heat given up of outer machine 10 is supplied less than the absorption heat of heat load
Coolant-temperature gage can be presented downward trend, when supply water temperature decline is detected, control the first electromagnetic valve 154 and second of closed mode
Electromagnetic valve 155 is all turned on, and when water temperature is risen to up to the second preset temperature, controls the first electromagnetic valve 154 or the of opening
Two electromagnetic valves 155 cut out, and the first electromagnetic valve 154 and the second electromagnetic valve are recalled to after performing repeatedly the second Preset Time of above-mentioned control
155 openings, hereafter leaving water temperature rise to shutdown, to ensure that supply water temperature is maintained within the scope of default temperature.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of outer machine control system, forms including being connected by compressor, heat exchange element, throttling arrangement, condenser and separator
Coolant loop, it is characterised in that the throttling arrangement includes that main road restricting element is in parallel extremely with the main road restricting element
A few branch road restricting element, the branch road restricting element are in series with electromagnetic valve；
The coolant loop is parallel with a hydrojet pipeline, and the hydrojet pipeline includes arrival end and the port of export, and the arrival end is arranged
Pipeline between the heat exchange element and throttling arrangement, the port of export are arranged at the pipe between the condenser and separator
Road, the hydrojet pipeline are provided with the liquid injection valve of control piper flow；
The outer machine control system also includes controller, and the controller connects the liquid injection valve and electromagnetic valve, controls the spray
The opening and closing of liquid valve and electromagnetic valve, adjust the fan-out capability of outer machine.
2. outer machine control system according to claim 1, it is characterised in that the outer machine control system also includes detection mould
Block, detecting outer machine continuously just makes supply water temperature reach highest setting temperature and stop less than preset value at least twice at runtime
During machine, start controller.
3. outer machine control system according to claim 2, it is characterised in that the throttling arrangement includes and main road throttling unit
Part tie point restricting element in parallel, the second branch road restricting element, first connected with the tie point restricting element are electric
Described in magnet valve and the second electromagnetic valve connected with the second branch road restricting element, first electromagnetic valve and the connection of the second electromagnetic valve
Controller.
4. outer machine control system according to claim 3, it is characterised in that
When detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve keep it turned on；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control is not turned off first electromagnetic valve or the second closed electromagnetic valve of state；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS- Tn1For
Second preset temperature of supply water temperature, and 0 ＜ TS- Tn3＜ TS- Tn1＜ TS, T is [0, TS] it is interval when, outer machine quantity of heat given up is big
In load absorption heat.
5. outer machine control system according to claim 3, it is characterised in that
When detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve keep it turned on；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn31When, first electromagnetic valve or the second electromagnetic valve of control closed mode remain turned-off first and preset
Open after time；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS- Tn31For
First saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn31＜ TS, in T=TS- Tn31When, outer machine quantity of heat given up is equal to
Load absorption heat.
6. outer machine control system according to claim 3, it is characterised in that
When detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve keep it turned on；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control first electromagnetic valve or the second closed electromagnetic valve of opening；
When detecting T=TS- Tn11When, the first electromagnetic valve of control and after the second electromagnetic valve remains turned-off the second Preset Time, control
First electromagnetic valve and/or the second electromagnetic valve are opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS- Tn1For
Second preset temperature of supply water temperature, TS- Tn11For the second saturation temperature of supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn1＜ TS-
Tn11＜ TS, in T=TS- Tn11When, outer machine quantity of heat given up is equal to load absorption heat.
7. outer machine control system according to claim 3, it is characterised in that
When detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve keep it turned on；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn1When, control first electromagnetic valve or the second closed electromagnetic valve of opening；
When detecting T=TS- Tn2When, control first electromagnetic valve and/or the second electromagnetic valve is opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS- Tn1For
Second preset temperature of supply water temperature, TS- Tn2Second temperature after declining for supply water temperature, 0 ＜ TS- Tn3＜ TS- Tn2＜
TS- Tn1＜ TS, T is from TS- Tn1It is down to TS- Tn2Period, outer machine quantity of heat given up are less than load absorption heat.
8. outer machine control system according to claim 3, it is characterised in that
When detecting T [0, TS- Tn3) it is interval when, control first electromagnetic valve and the second electromagnetic valve keep it turned on；
When detecting T=TS- Tn3When, control first electromagnetic valve or the second closed electromagnetic valve；
When detecting T=TS- Tn4When, the first electromagnetic valve or the second electromagnetic valve for controlling closed mode is opened；
When detecting T=TSWhen, the outer machine is shut down；
Wherein, T is supply water temperature, TSFor highest setting temperature, TS- Tn3For the first preset temperature of supply water temperature, TS- Tn4For
The first temperature after supply water temperature decline, 0 ＜ TS- Tn4＜ TS- Tn3＜ TS, T is from TS- Tn3It is down to TS- Tn4Period, outer machine
Quantity of heat given up is less than load absorption heat.
9. the outer machine control system according to any one of claim 1-8, it is characterised in that
When detecting TP≥TPH- Tn1When, control the liquid injection valve and open；
When detecting TP≤TPH- Tn2When, control the liquid injection valve and close；
Wherein, 0 ＜ TPH- Tn2＜ TPH- Tn1＜ TPH, TPFor delivery temperature, TPHFor default highest delivery temperature, TPH- Tn1For
One aerofluxuss preset temperature, TPH- Tn2For second exhaust preset temperature.
10. a kind of source pump, it is characterised in that the source pump includes outer machine control system as claimed in claim 9.
11. a kind of control methods of source pump as claimed in claim 10, it is characterised in that the control method includes following
Step：
Detect outer machine it is continuous just make supply water temperature reach highest setting temperature less than preset value at runtime at least twice and
During shutdown, following control logic is run：
Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve is remained turned-off；
When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, detect delivery temperature little
When second exhaust preset temperature, control the liquid injection valve and close；
When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve and closes, in institute
When stating outer machine and being again started up, the whole electromagnetic valves of control are opened.
12. a kind of control methods of source pump as claimed in claim 10, it is characterised in that the control method includes following
Step：
Detect outer machine it is continuous just make supply water temperature reach highest setting temperature less than preset value at runtime at least twice and
During shutdown, following control logic is run：
Before supply water temperature reaches the first preset temperature, the whole electromagnetic valves of control keep it turned on, and control liquid injection valve is remained turned-off；
When detecting the supply water temperature and reaching the first preset temperature, at least one closed electromagnetic valve is controlled；
When detecting the supply water temperature and reaching the second preset temperature, the whole closed electromagnetic valves of control；
When delivery temperature is detected more than first exhaust preset temperature, control the liquid injection valve and open, detect delivery temperature little
When second exhaust preset temperature, control the liquid injection valve and close；
When detecting the supply water temperature and reaching highest setting temperature, the outer machine is shut down, and controls the liquid injection valve and closes, in institute
When stating outer machine and being again started up, the whole electromagnetic valves of control are opened.
The control method of 13. source pump according to claim 11 or 12, it is characterised in that described to detect the confession
When coolant-temperature gage reaches the first preset temperature, control at least one closed electromagnetic valve the step of, specifically include：
When detecting supply water temperature and reaching the first preset temperature, the first electromagnetic valve of control or the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls closed mode
First electromagnetic valve or the second electromagnetic valve are opened after remaining turned-off the first Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first of closed mode
Electromagnetic valve or the second electromagnetic valve are opened.
The control method of 14. source pump according to claim 11 or 12, it is characterised in that described to detect the confession
When coolant-temperature gage reaches the second preset temperature, the step of control whole closed electromagnetic valve, specifically include：
When detecting supply water temperature and reaching the second preset temperature, the first electromagnetic valve of control and the second closed electromagnetic valve；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first electromagnetic valve
Remain turned-off after the second Preset Time with the second electromagnetic valve, the first electromagnetic valve of control and/or the second electromagnetic valve are opened；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first electromagnetic valve of control and/or
Second electromagnetic valve is opened.
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| CN201611175068.9A CN106595126B (en) | 2016-12-16 | 2016-12-16 | Outer unit control system, heat pump unit and control method thereof |
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| CN201611175068.9A CN106595126B (en) | 2016-12-16 | 2016-12-16 | Outer unit control system, heat pump unit and control method thereof |
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