CN105201806B - Control method and system for heat recovery water pump - Google Patents
Control method and system for heat recovery water pump Download PDFInfo
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- CN105201806B CN105201806B CN201510673392.2A CN201510673392A CN105201806B CN 105201806 B CN105201806 B CN 105201806B CN 201510673392 A CN201510673392 A CN 201510673392A CN 105201806 B CN105201806 B CN 105201806B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 370
- 238000011084 recovery Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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Abstract
The invention discloses a control method of a heat recovery water pump, which comprises the following steps: detecting the temperature of the heat recovery water tank; when the temperature of the heat recovery water tank is less than or equal to a first preset value, whether the compressor is started within first preset time is judged, if yes, then: generating a first control instruction, and controlling the heat recovery water pump to keep a closing state according to the first control instruction; if not, then: and generating a second control instruction, and starting the heat recovery water pump according to the second control instruction. The invention can comprehensively control the heat recovery water pump through the starting time of the compressor and the temperature of the heat recovery water tank, thereby improving the effectiveness of the heat recovery water pump control, and further improving the operation reliability and the service life of the unit. The invention also discloses a heat recovery water pump control system.
Description
Technical field
The present invention relates to heat recovery water pump technical field, more particularly to a kind of heat recovery water method for controlling pump and system.
Background technology
At present, the start and stop of the recuperation of heat water pump in part recuperation of heat Screw chiller are controlled according to recuperation of heat water tank temperature
System, i.e. reheating are reclaimed under functional mode unlatching, when water tank temperature is less than a certain setting value, is opened recuperation of heat water pump, are worked as water tank
When temperature is higher than a certain setting value, recuperation of heat water pump is closed.
But, from the point of view of practical application, impact of the recuperation of heat water pump with compressor opening time order to system is larger, main
To be affected larger by recuperation of heat inflow temperature.Many experiments show, when recuperation of heat inflow temperature is relatively low, if machine set compressor
First open, open after recuperation of heat water pump, after recuperation of heat is opened, because inflow temperature is relatively low, can produce in heat reclamation device a large amount of cold
Lime set body enters condenser and forms double evaporation-cooling, so as to affect the normal control of throttling arrangement, vaporizer feed flow can be caused not enough,
Low pressure quickly reduces final generation low-voltage variation failure.And when recuperation of heat inflow temperature is of a relatively high, in heat reclamation device
Condensation effect is not strong.Therefore, how recuperation of heat water pump is control effectively, and then lifts operational reliability and the use of unit
Life-span is a problem demanding prompt solution.
The content of the invention
The invention provides a kind of heat recovery water method for controlling pump, by opening time and the recuperation of heat water tank temperature of compressor
The comprehensive effectiveness that recuperation of heat water pump is controlled, the control of recuperation of heat water pump is improve of degree, and then improve the operation of unit
Reliability and service life.
The invention provides a kind of heat recovery water method for controlling pump, including：
The temperature of detection recuperation of heat water tank；
When the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judge compressor in the first Preset Time
Whether open, if so, then：The first control instruction is generated, and keeps closing according to first control instruction control recuperation of heat water pump
Closed state；If it is not, then：
The second control instruction is generated, and the recuperation of heat water pump is opened according to second control instruction.
Preferably, when the temperature of the recuperation of heat water tank is more than first preset value, judge the recuperation of heat water tank
Temperature whether be less than or equal to the second preset value, if so, then：
Judge whether the opening time of the compressor is more than the second Preset Time, if so, then：Generate the 3rd control to refer to
Order, and the recuperation of heat water pump is opened according to the 3rd control instruction；If it is not, then：
The 4th control instruction is generated, and the recuperation of heat water pump is controlled according to the 4th control instruction remain turned-off shape
State.
Preferably, when the temperature of the recuperation of heat water tank is more than three preset values, wherein, the 3rd preset value is more than
Second preset value；
The 5th control instruction is generated, and the recuperation of heat water pump is closed according to the 5th control instruction.
Preferably, methods described also includes：
Judge whether the compressor closes, if so, then：
The 6th control instruction is generated, and the recuperation of heat water pump is closed according to the 6th control instruction.
Preferably, when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judge opening for the compressor
Open whether the time is more than the second Preset Time, if so, then：
Detect whether recuperation of heat water flow switch is changed into closure from disconnection in the 3rd preset time period, if so, then：
The 7th control instruction is generated, and the recuperation of heat water pump is opened according to the 7th control instruction.
A kind of heat recovery water pump control system, including：
First detector unit, for detecting the temperature of recuperation of heat water tank；
First judging unit, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging compression
Whether machine is opened in the first Preset Time；
First signal generating unit, for when judging that compressor is opened in the first Preset Time, generating the first control instruction；
First control unit, for remaining off according to first control instruction control recuperation of heat water pump；
Second signal generating unit, refers to for when judging that compressor is not opened in the first Preset Time, generating the second control
Order；
Second control unit, for opening the recuperation of heat water pump according to second control instruction.
Preferably, the system also includes：
Second judging unit, for when the temperature of the recuperation of heat water tank is more than first preset value, judging described
Whether the temperature of recuperation of heat water tank is less than or equal to the second preset value；
3rd judging unit, for when the temperature for judging the recuperation of heat water tank is less than or equal to the second preset value, judging
Whether the opening time of the compressor is more than the second Preset Time；
3rd signal generating unit, for when the opening time for judging the compressor the second Preset Time is more than, generating the
Three control instructions；
3rd control unit, for opening the recuperation of heat water pump according to the 3rd control instruction；
4th signal generating unit, it is for when the opening time for judging the compressor the second Preset Time is less than or equal to, raw
Into the 4th control instruction；
4th control unit, remains off for controlling the recuperation of heat water pump according to the 4th control instruction.
Preferably, the system also includes：
5th signal generating unit, for when the recuperation of heat water tank temperature be more than three preset values when, wherein, the described 3rd
Preset value is more than second preset value, generates the 5th control instruction；
5th control unit, for closing the recuperation of heat water pump according to the 5th control instruction.
Preferably, the system also includes：
4th judging unit, for judging whether the compressor closes；
6th signal generating unit, for when judging that the compressor is closed, generating the 6th control instruction；
6th control unit, for closing the recuperation of heat water pump according to the 6th control instruction.
Preferably, the system also includes：
5th judging unit, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging described
Whether the opening time of compressor is more than the second Preset Time；
Second detector unit, for when the opening time for judging the compressor the second Preset Time is more than, the 3rd
In preset time period, whether detection recuperation of heat water flow switch is changed into closure from disconnection；
For working as, 7th signal generating unit, detects that in the 3rd preset time period recuperation of heat water flow switch is changed into closure from disconnection
When, generate the 7th control instruction；
7th control unit, for opening the recuperation of heat water pump according to the 7th control instruction.
A kind of heat recovery water method for controlling pump provided from such scheme, the present invention, first by detecting recuperation of heat
The temperature of water tank, when the temperature of recuperation of heat water tank is less than or equal to default first preset value, continuation is judged when first is default
Between inner compressor whether open, when judging that compressor is had turned in the first Preset Time, control recuperation of heat water pump keeps closing
Closed state, when judging that compressor is not opened in the first Preset Time, is then turned on recuperation of heat water pump.In whole control process
In, consider the temperature of recuperation of heat water tank and the opening time of compressor so that the control of recuperation of heat water pump more intelligence
Can be effective, and then improve the operational reliability and service life of unit.
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
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of heat recovery water method for controlling pump disclosed in the embodiment of the present invention；
Fig. 2 is the flow chart of another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention；
Fig. 3 is the flow chart of another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention；
Fig. 4 is the flow chart of another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention；
Fig. 5 is a kind of structural representation of heat recovery water pump control system disclosed in the embodiment of the present invention；
Fig. 6 is the structural representation of another kind of heat recovery water pump control system disclosed in the embodiment of the present invention；
Fig. 7 is the structural representation of another kind of heat recovery water pump control system disclosed in the embodiment of the present invention；
Fig. 8 is the structural representation of another kind of heat recovery water pump control system disclosed in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, be a kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention, including：
The temperature of S101, detection recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first in recuperation of heat Screw chiller
The temperature of recuperation of heat water tank detected, get the real time temperature of recuperation of heat water tank.
S102, when the recuperation of heat water tank temperature be less than or equal to the first preset value when, judge compressor first preset
Whether open in time, if so, then enter step S103, if it is not, then entering step S104:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, the pressure in recuperation of heat Screw chiller is judged
Whether contracting machine is opened in the first Preset Time, and the first described Preset Time is to be set according to recuperation of heat water pump demand for control in advance
Fixed time value.
S103, the first control instruction of generation, and shape is remained turned-off according to first control instruction control recuperation of heat water pump
State；
When judging compressor in the first Preset Time already at opening, the first control instruction, control is generated
Recuperation of heat water pump is remained off, that is, control recuperation of heat water pump and be in idle state.
S104, the second control instruction of generation, and the recuperation of heat water pump is opened according to second control instruction.
When judging that compressor is not also opened in the first Preset Time, the second control instruction is generated, start heat recovery water
Pump, that is, control recuperation of heat water pump in running order.
In the above-described embodiments, first by detect recuperation of heat water tank temperature, when recuperation of heat water tank temperature less than etc.
When default first preset value, continuation judges whether open in the first Preset Time inner compressor, when judging compressor the
When having turned in one Preset Time, control recuperation of heat water pump is remained off, when judging compressor in the first Preset Time
When not opening, recuperation of heat water pump is then turned on.In whole control process, temperature and the compressor of recuperation of heat water tank have been considered
Opening time, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump is being just
It is normally open so that the control of recuperation of heat water pump more intelligence effectively, and then improves the operational reliability of unit and uses the longevity
Life.
As shown in Fig. 2 be another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention, including：
The temperature of S201, detection recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first in recuperation of heat Screw chiller
The temperature of recuperation of heat water tank detected, get the real time temperature of recuperation of heat water tank.
S202, when the recuperation of heat water tank temperature be less than or equal to the first preset value when, judge compressor first preset
Whether open in time, if so, then enter step S203, if it is not, then entering step S204:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the temperature of having a try of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, the pressure in recuperation of heat Screw chiller is judged
Whether contracting machine is opened in the first Preset Time, and the first described Preset Time is to be set according to recuperation of heat water pump demand for control in advance
Fixed time value.
S203, the first control instruction of generation, and shape is remained turned-off according to first control instruction control recuperation of heat water pump
State；
When judging compressor in the first Preset Time already at opening, the first control instruction, control is generated
Recuperation of heat water pump is remained off, that is, control recuperation of heat water pump and be in idle state.
S204, the second control instruction of generation, and the recuperation of heat water pump is opened according to second control instruction.
When judging that compressor is not also opened in the first Preset Time, the second control instruction is generated, start heat recovery water
Pump, that is, control recuperation of heat water pump in running order.
S205, when the recuperation of heat water tank temperature be more than first preset value when, judge the recuperation of heat water tank
Whether temperature is less than or equal to the second preset value, if so, then enters step 206:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is big
In the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.Work as judgement
When the real time temperature of the recuperation of heat water tank for getting is more than the first preset value, judge whether the temperature of recuperation of heat water tank is less than or equal to
Second preset value, the second described preset value are according to recuperation of heat water pump demand for control predetermined temperature value, wherein, second
Preset value is more than the first preset value.
S206, judge that the opening time of the compressor, whether more than the second Preset Time, if so, then enters step 207,
If it is not, then entering step 208:
When the real time temperature for judging recuperation of heat water tank is less than or equal to the second preset value more than the first preset value, compression is judged
Whether the opening time of machine is more than the second Preset Time, that is, whether judge the working time of compressor more than the second Preset Time,
The second described Preset Time is according to recuperation of heat water pump demand for control time value set in advance.
S207, the 3rd control instruction of generation, and the recuperation of heat water pump is opened according to the 3rd control instruction；
When the working time for judging compressor the second Preset Time is had been above, the 3rd control instruction is generated, start heat
Recovered water pump, that is, control recuperation of heat water pump in running order.
S208, the 4th control instruction of generation, and the recuperation of heat water pump holding pass is controlled according to the 4th control instruction
Closed state.
When the working time for judging compressor the second Preset Time is less than or equal to, the 4th control instruction, control heat is generated
Recovered water pump is remained off, that is, control recuperation of heat water pump and be in idle state.
In the above-described embodiments, real time temperature and the compression of recuperation of heat water tank in whole control process, have been considered
The opening time of machine, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump
It is normally-open so that the control of recuperation of heat water pump more intelligence effectively, and then improves operational reliability and the use of unit
Life-span.
As shown in figure 3, be another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention, including：
The temperature of S301, detection recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first in recuperation of heat Screw chiller
The temperature of recuperation of heat water tank detected, get the real time temperature of recuperation of heat water tank.
S302, when the recuperation of heat water tank temperature be less than or equal to the first preset value when, judge compressor first preset
Whether open in time, if so, then enter step S303, if it is not, then entering step S304:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the temperature of having a try of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, the pressure in recuperation of heat Screw chiller is judged
Whether contracting machine is opened in the first Preset Time, and the first described Preset Time is to be set according to recuperation of heat water pump demand for control in advance
Fixed time value.
S303, the first control instruction of generation, and shape is remained turned-off according to first control instruction control recuperation of heat water pump
State；
When judging compressor in the first Preset Time already at opening, the first control instruction, control is generated
Recuperation of heat water pump is remained off, that is, control recuperation of heat water pump and be in idle state.
S304, the second control instruction of generation, and the recuperation of heat water pump is opened according to second control instruction.
When judging that compressor is not also opened in the first Preset Time, the second control instruction is generated, start heat recovery water
Pump, that is, control recuperation of heat water pump in running order.
S305, when the recuperation of heat water tank temperature be more than first preset value when, judge the recuperation of heat water tank
Whether temperature is less than or equal to the second preset value, if so, then enters step 306:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is big
In the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.Work as judgement
When the real time temperature of the recuperation of heat water tank for getting is more than the first preset value, judge whether the temperature of recuperation of heat water tank is less than or equal to
Second preset value, the second described preset value are according to recuperation of heat water pump demand for control predetermined temperature value, wherein, second
Preset value is more than the first preset value.
S306, judge that the opening time of the compressor, whether more than the second Preset Time, if so, then enters step 307,
If it is not, then entering step 311:
When the real time temperature for judging recuperation of heat water tank is less than or equal to the second preset value more than the first preset value, compression is judged
Whether the opening time of machine is more than the second Preset Time, that is, whether judge the working time of compressor more than the second Preset Time,
The second described Preset Time is according to recuperation of heat water pump demand for control time value set in advance.
S307, the 3rd control instruction of generation, and the recuperation of heat water pump is opened according to the 3rd control instruction；
When the working time for judging compressor the second Preset Time is had been above, the 3rd control instruction is generated, start heat
Recovered water pump, that is, control recuperation of heat water pump in running order.
S308, when the recuperation of heat water tank temperature be more than three preset values when, wherein, the 3rd preset value be more than institute
The second preset value is stated, and is generated the 5th control instruction, and the recuperation of heat water pump is closed according to the 5th control instruction；
During recuperation of heat water pump is in running order, when the real time temperature of the recuperation of heat water tank for detecting is more than the
During three preset values, wherein the 3rd preset value is more than the second preset value, generates the 5th control instruction, during closing is in running order
Recuperation of heat water pump.
S309, judge whether the compressor closes, if so, then enter step S310：
During recuperation of heat water pump is in running order, while judging to the working condition of compressor.
S310, the 6th control instruction of generation, and the recuperation of heat water pump is closed according to the 6th control instruction；
When judging that compressor is quit work, the 6th control instruction, the recuperation of heat during closing is in running order is generated
Water pump.
S311, the 4th control instruction of generation, and the recuperation of heat water pump holding pass is controlled according to the 4th control instruction
Closed state.
When the working time for judging compressor the second Preset Time is less than or equal to, the 4th control instruction, control heat is generated
Recovered water pump is remained off, that is, control recuperation of heat water pump and be in idle state.
In the above-described embodiments, real time temperature and the compression of recuperation of heat water tank in whole control process, have been considered
The opening time of machine, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump
It is normally-open, meanwhile, the closing to recuperation of heat water pump is controlled so that the control of recuperation of heat water pump more intelligently has
Effect, and then improve the operational reliability and service life of unit.
As shown in figure 4, be another kind of heat recovery water method for controlling pump disclosed in the embodiment of the present invention, including：
The temperature of S401, detection recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first in recuperation of heat Screw chiller
The temperature of recuperation of heat water tank detected, get the real time temperature of recuperation of heat water tank.
S402, when the recuperation of heat water tank temperature be less than or equal to the first preset value when, judge the unlatching of the compressor
Whether the time is more than the second Preset Time, if so, then enters step 403:
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, the pressure in recuperation of heat Screw chiller is judged
Whether the opening time of contracting machine is more than the second Preset Time, and the second described Preset Time is according to recuperation of heat water pump demand for control
Time value set in advance.
S403, detect whether recuperation of heat water flow switch is changed into closure from disconnection in the 3rd preset time period, if so, then enter
Enter step 404:
When the opening time of the compressor in recuperation of heat Screw chiller is judged is more than the second Preset Time, to heat recovery water
Stream switch is detected, judges that heat recovery water stream is switched in the 3rd preset time period and whether be changed into closure from disconnection.
S404, the 7th control instruction of generation, and the recuperation of heat water pump is opened according to the 7th control instruction.
When disconnection is changed into closure, generates the 7th and control when the heat recovery water stream switch in the 3rd preset time period is detected
Instruction, starts recuperation of heat water pump, that is, control recuperation of heat water pump in running order.
In the above-described embodiments, the temperature of recuperation of heat water tank and the opening time of compressor have been considered, and heat have been returned
Receive the state of water flow switch, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that heat recovery water
Pump it is normally-open so that the control of recuperation of heat water pump more intelligence effectively, and then improve unit operational reliability and
Service life.
As shown in figure 5, be a kind of heat recovery water pump control system disclosed in the embodiment of the present invention, including：
First detector unit 501, for detecting the temperature of recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first by the first detector unit
The temperature of the recuperation of heat water tank in 501 pairs of recuperation of heat Screw chillers detects, gets the real time temperature of recuperation of heat water tank.
First judging unit 502, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging pressure
Whether contracting machine is opened in the first Preset Time；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, judged by the first judging unit 502
Whether the compressor in recuperation of heat Screw chiller is opened in the first Preset Time, and the first described Preset Time is to be returned according to heat
Receive water pump demand for control time value set in advance.
First signal generating unit 503, refers to for when judging that compressor is opened in the first Preset Time, generating the first control
Order；
When the first judging unit 502 judges compressor in the first Preset Time already at opening, by
One signal generating unit 503 generates the first control instruction.
First control unit 504, for remaining off according to first control instruction control recuperation of heat water pump；
Recuperation of heat water pump is controlled by the first control unit 504 according to the first control instruction to remain off, that is, control
Recuperation of heat water pump is in idle state.
Second signal generating unit 505, controls for when judging that compressor is not opened in the first Preset Time, generating second
Instruction；
When the first judging unit 502 judges that compressor is not also opened in the first Preset Time, generate by second single
Unit 505 generates the second control instruction.
Second control unit 506, for opening the recuperation of heat water pump according to second control instruction.
Recuperation of heat water pump is started according to the second control instruction by the second control unit 506, that is, is controlled at recuperation of heat water pump
In working condition.
In the above-described embodiments, first by detect recuperation of heat water tank temperature, when recuperation of heat water tank temperature less than etc.
When default first preset value, continuation judges whether open in the first Preset Time inner compressor, when judging compressor the
When having turned in one Preset Time, control recuperation of heat water pump is remained off, when judging compressor in the first Preset Time
When not opening, recuperation of heat water pump is then turned on.In whole control process, temperature and the compressor of recuperation of heat water tank have been considered
Opening time, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump is being just
It is normally open so that the control of recuperation of heat water pump more intelligence effectively, and then improves the operational reliability of unit and uses the longevity
Life.
As shown in fig. 6, be another kind of heat recovery water pump control system disclosed in the embodiment of the present invention, including：
First detector unit 601, for detecting the temperature of recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first by the first detector unit
The temperature of the recuperation of heat water tank in 601 pairs of recuperation of heat Screw chillers detects, gets the real time temperature of recuperation of heat water tank.
First judging unit 602, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging pressure
Whether contracting machine is opened in the first Preset Time；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, judged by the first judging unit 602
Whether the compressor in recuperation of heat Screw chiller is opened in the first Preset Time, and the first described Preset Time is to be returned according to heat
Receive water pump demand for control time value set in advance.
First signal generating unit 603, refers to for when judging that compressor is opened in the first Preset Time, generating the first control
Order；
When the first judging unit 602 judges compressor in the first Preset Time already at opening, by
One signal generating unit 603 generates the first control instruction.
First control unit 604, for remaining off according to first control instruction control recuperation of heat water pump；
Recuperation of heat water pump is controlled by the first control unit 604 according to the first control instruction to remain off, that is, control
Recuperation of heat water pump is in idle state.
Second signal generating unit 605, controls for when judging that compressor is not opened in the first Preset Time, generating second
Instruction；
When the first judging unit 602 judges that compressor is not also opened in the first Preset Time, generate by second single
Unit 605 generates the second control instruction.
Second control unit 606, for opening the recuperation of heat water pump according to second control instruction.
Recuperation of heat water pump is started according to the second control instruction by the second control unit 606, that is, is controlled at recuperation of heat water pump
In working condition.
Second judging unit 607, for when the temperature of the recuperation of heat water tank is more than first preset value, judging institute
The temperature of recuperation of heat water tank is stated whether less than or equal to the second preset value；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is big
In the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.Work as judgement
When the real time temperature of the recuperation of heat water tank for getting is more than the first preset value, heat recovery water is judged by the second judging unit 607
Whether the temperature of case is less than or equal to the second preset value, and the second described preset value is to be set according to recuperation of heat water pump demand for control in advance
Fixed temperature value, wherein, the second preset value is more than the first preset value.
3rd judging unit 608, for when the temperature for judging the recuperation of heat water tank is less than or equal to the second preset value, sentencing
Whether the opening time of the disconnected compressor is more than the second Preset Time；
When the second judging unit 607 judges that the real time temperature of recuperation of heat water tank is pre- less than or equal to second more than the first preset value
If during value, judging that the opening time of compressor whether more than the second Preset Time, that is, judges compression by the 3rd judging unit 608
Whether the working time of machine is more than the second Preset Time, and the second described Preset Time is pre- according to recuperation of heat water pump demand for control
The time value for first setting.
3rd signal generating unit 609, for when the opening time for judging the compressor the second Preset Time is more than, generating
3rd control instruction；
When the 3rd judging unit 608 judges that the working time of compressor has been above the second Preset Time, by the 3rd
Signal generating unit 609 generates the 3rd control instruction.
3rd control unit 610, for opening the recuperation of heat water pump according to the 3rd control instruction；
3rd control unit 610 starts recuperation of heat water pump according to the 3rd control instruction, that is, control recuperation of heat water pump and be in work
Make state.
4th signal generating unit 611, for when judge the compressor opening time be less than or equal to the second Preset Time when,
Generate the 4th control instruction；
When the 3rd judging unit 608 judges that the working time of compressor is less than or equal to the second Preset Time, by the 4th
Signal generating unit 611 generates the 4th control instruction.
4th control unit 612, remains turned-off shape for controlling the recuperation of heat water pump according to the 4th control instruction
State.
4th control unit 612 is remained off according to the 4th control instruction control recuperation of heat water pump, that is, control heat and return
Receive water pump and be in idle state.
In the above-described embodiments, real time temperature and the compression of recuperation of heat water tank in whole control process, have been considered
The opening time of machine, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump
It is normally-open so that the control of recuperation of heat water pump more intelligence effectively, and then improves operational reliability and the use of unit
Life-span.
As shown in fig. 7, be another kind of heat recovery water pump control system disclosed in the embodiment of the present invention, including：
First detector unit 701, for detecting the temperature of recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first by the first detector unit
The temperature of the recuperation of heat water tank in 701 pairs of recuperation of heat Screw chillers detects, gets the real time temperature of recuperation of heat water tank.
First judging unit 702, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging pressure
Whether contracting machine is opened in the first Preset Time；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, judged by the first judging unit 702
Whether the compressor in recuperation of heat Screw chiller is opened in the first Preset Time, and the first described Preset Time is to be returned according to heat
Receive water pump demand for control time value set in advance.
First signal generating unit 703, refers to for when judging that compressor is opened in the first Preset Time, generating the first control
Order；
When the first judging unit 702 judges compressor in the first Preset Time already at opening, by
One signal generating unit 703 generates the first control instruction.
First control unit 704, for remaining off according to first control instruction control recuperation of heat water pump；
Recuperation of heat water pump is controlled by the first control unit 704 according to the first control instruction to remain off, that is, control
Recuperation of heat water pump is in idle state.
Second signal generating unit 705, controls for when judging that compressor is not opened in the first Preset Time, generating second
Instruction；
When the first judging unit 702 judges that compressor is not also opened in the first Preset Time, generate by second single
Unit 705 generates the second control instruction.
Second control unit 706, for opening the recuperation of heat water pump according to second control instruction.
Recuperation of heat water pump is started according to the second control instruction by the second control unit 706, that is, is controlled at recuperation of heat water pump
In working condition.
Second judging unit 707, for when the temperature of the recuperation of heat water tank is more than first preset value, judging institute
The temperature of recuperation of heat water tank is stated whether less than or equal to the second preset value；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is big
In the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.Work as judgement
When the real time temperature of the recuperation of heat water tank for getting is more than the first preset value, heat recovery water is judged by the second judging unit 707
Whether the temperature of case is less than or equal to the second preset value, and the second described preset value is to be set according to recuperation of heat water pump demand for control in advance
Fixed temperature value, wherein, the second preset value is more than the first preset value.
3rd judging unit 708, for when the temperature for judging the recuperation of heat water tank is less than or equal to the second preset value, sentencing
Whether the opening time of the disconnected compressor is more than the second Preset Time；
When the second judging unit 707 judges that the real time temperature of recuperation of heat water tank is pre- less than or equal to second more than the first preset value
If during value, judging that the opening time of compressor whether more than the second Preset Time, that is, judges compression by the 3rd judging unit 708
Whether the working time of machine is more than the second Preset Time, and the second described Preset Time is pre- according to recuperation of heat water pump demand for control
The time value for first setting.
3rd signal generating unit 709, for when the opening time for judging the compressor the second Preset Time is more than, generating
3rd control instruction；
When the 3rd judging unit 708 judges that the working time of compressor has been above the second Preset Time, by the 3rd
Signal generating unit 709 generates the 3rd control instruction.
3rd control unit 710, for opening the recuperation of heat water pump according to the 3rd control instruction；
3rd control unit 710 starts recuperation of heat water pump according to the 3rd control instruction, that is, control recuperation of heat water pump and be in work
Make state.
5th signal generating unit 711, it is for when the temperature of the recuperation of heat water tank is more than three preset values, wherein, described
3rd preset value is more than second preset value, generates the 5th control instruction；
During recuperation of heat water pump is in running order, when the recuperation of heat water tank that the first detector unit 701 is detected
Real time temperature be more than three preset values when, wherein the 3rd preset value be more than the second preset value, given birth to by the 5th signal generating unit 711
Into the 5th control instruction.
5th control unit 712, for closing the recuperation of heat water pump according to the 5th control instruction；
By recuperation of heat water pump of the 5th control unit 712 according to the closing of the 5th control instruction in running order.
4th judging unit 713, for judging whether the compressor closes；
During recuperation of heat water pump is in running order, while the work by the 4th judging unit 713 to compressor
Judged as state.
6th signal generating unit 714, for when judging that the compressor is closed, generating the 6th control instruction；
When the 4th judging unit 713 judges that compressor is quit work, the 6th is generated by the 6th signal generating unit 714 and controlled
System instruction.
6th control unit 715, for closing the recuperation of heat water pump according to the 6th control instruction；
By recuperation of heat water pump of the 6th control unit 715 according to the closing of the 6th control instruction in running order.
4th signal generating unit 716, for when judge the compressor opening time be less than or equal to the second Preset Time when,
Generate the 4th control instruction；
When the 3rd judging unit 708 judges that the working time of compressor is less than or equal to the second Preset Time, by the 4th
Signal generating unit 716 generates the 4th control instruction.
4th control unit 717, remains turned-off shape for controlling the recuperation of heat water pump according to the 4th control instruction
State.
4th control unit 717 is remained off according to the 4th control instruction control recuperation of heat water pump, that is, control heat and return
Receive water pump and be in idle state.
In the above-described embodiments, real time temperature and the compression of recuperation of heat water tank in whole control process, have been considered
The opening time of machine, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that recuperation of heat water pump
It is normally-open, meanwhile, the closing to recuperation of heat water pump is controlled so that the control of recuperation of heat water pump more intelligently has
Effect, and then improve the operational reliability and service life of unit.
As shown in figure 8, be another kind of heat recovery water pump control system disclosed in the embodiment of the present invention, including：
First detector unit 801, for detecting the temperature of recuperation of heat water tank；
When needing to be controlled the recuperation of heat water pump in recuperation of heat Screw chiller, first in recuperation of heat Screw chiller
The temperature of recuperation of heat water tank detected, get the real time temperature of recuperation of heat water tank.
5th judging unit 802, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging institute
The opening time of compressor is stated whether more than the second Preset Time；
After the real time temperature of recuperation of heat water tank is got, whether the real time temperature of the recuperation of heat water tank that judgement gets is little
In equal to the first preset value, the first described preset value is according to recuperation of heat water pump demand for control predetermined temperature value.When
When the real time temperature of the recuperation of heat water tank that judgement gets is less than or equal to the first preset value, judged by the 5th judging unit 802
Whether the opening time of the compressor in recuperation of heat Screw chiller is more than the second Preset Time, and the second described Preset Time is root
According to recuperation of heat water pump demand for control time value set in advance.
Second detector unit 803, for when the opening time for judging the compressor the second Preset Time is more than, the
In three preset time periods, whether detection recuperation of heat water flow switch is changed into closure from disconnection；
When the 5th judging unit 803 judges that the opening time of the compressor in recuperation of heat Screw chiller is default more than second
Between when, recuperation of heat water flow switch is detected by the second detector unit 803, judges the recuperation of heat in the 3rd preset time period
Whether water flow switch is changed into closure from disconnection.
For working as, 7th signal generating unit 804, detects that in the 3rd preset time period recuperation of heat water flow switch is changed into from disconnection
During closure, the 7th control instruction is generated；
Closure is changed into from disconnection when the second detector unit 803 detects the heat recovery water stream switch in the 3rd preset time period
When, the 7th control instruction is generated by the 7th signal generating unit 804.
7th control unit 805, for opening the recuperation of heat water pump according to the 7th control instruction.
Recuperation of heat water pump is started according to the 7th control instruction by the 7th control unit 805, that is, is controlled at recuperation of heat water pump
In working condition.
In the above-described embodiments, the temperature of recuperation of heat water tank and the opening time of compressor have been considered, and heat have been returned
Receive the state of water flow switch, it is to avoid open by mistake the problem of the frequent protection of unit that recuperation of heat water pump causes, it is ensured that heat recovery water
Pump it is normally-open so that the control of recuperation of heat water pump more intelligence effectively, and then improve unit operational reliability and
Service life.
If the function described in the present embodiment method is realized using in the form of SFU software functional unit and as independent product pin
When selling or using, can be stored in a computing device read/write memory medium.Based on such understanding, the embodiment of the present invention
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, and this is soft
Part product is stored in a storage medium, use including some instructions so that computing device (can be personal computer,
Server, mobile computing device or network equipment etc.) perform all or part of step of each embodiment methods described of the invention
Suddenly.And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), deposit at random
Access to memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of heat recovery water method for controlling pump, it is characterised in that include：
The temperature of detection recuperation of heat water tank；
When the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judge compressor in the first Preset Time whether
Open, if so, then：The first control instruction is generated, and shape is remained turned-off according to first control instruction control recuperation of heat water pump
State；If it is not, then：
The second control instruction is generated, and the recuperation of heat water pump is opened according to second control instruction.
2. method according to claim 1, it is characterised in that when the temperature of the recuperation of heat water tank it is pre- more than described first
If during value, judging whether the temperature of the recuperation of heat water tank is less than or equal to the second preset value, if so, then：
Judge whether the opening time of the compressor is more than the second Preset Time, if so, then：The 3rd control instruction is generated, and
The recuperation of heat water pump is opened according to the 3rd control instruction；If it is not, then：
The 4th control instruction is generated, and the recuperation of heat water pump is controlled according to the 4th control instruction remain off.
3. method according to claim 2, it is characterised in that when the temperature of the recuperation of heat water tank is more than the 3rd preset value
When, wherein, the 3rd preset value is more than second preset value；
The 5th control instruction is generated, and the recuperation of heat water pump is closed according to the 5th control instruction.
4. method according to claim 3, it is characterised in that also include：
Judge whether the compressor closes, if so, then：
The 6th control instruction is generated, and the recuperation of heat water pump is closed according to the 6th control instruction.
5. method according to claim 1, it is characterised in that when the temperature of the recuperation of heat water tank it is pre- less than or equal to first
If during value, judging whether the opening time of the compressor is more than the second Preset Time, if so, then：
Detect whether recuperation of heat water flow switch is changed into closure from disconnection in the 3rd preset time period, if so, then：
The 7th control instruction is generated, and the recuperation of heat water pump is opened according to the 7th control instruction.
6. a kind of heat recovery water pump control system, it is characterised in that include：
First detector unit, for detecting the temperature of recuperation of heat water tank；
First judging unit, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging that compressor exists
Whether open in first Preset Time；
First signal generating unit, for when judging that compressor is opened in the first Preset Time, generating the first control instruction；
First control unit, for remaining off according to first control instruction control recuperation of heat water pump；
Second signal generating unit, for when judging that compressor is not opened in the first Preset Time, generating the second control instruction；
Second control unit, for opening the recuperation of heat water pump according to second control instruction.
7. system according to claim 6, it is characterised in that also include：
Second judging unit, for when the temperature of the recuperation of heat water tank is more than first preset value, judging that the heat is returned
Whether the temperature for receiving water tank is less than or equal to the second preset value；
3rd judging unit, for when the temperature for judging the recuperation of heat water tank is less than or equal to the second preset value, judging described
Whether the opening time of compressor is more than the second Preset Time；
3rd signal generating unit, for when the opening time for judging the compressor the second Preset Time is more than, generating the 3rd and controlling
System instruction；
3rd control unit, for opening the recuperation of heat water pump according to the 3rd control instruction；
4th signal generating unit, for when the opening time for judging the compressor the second Preset Time is less than or equal to, generating the
Four control instructions；
4th control unit, remains off for controlling the recuperation of heat water pump according to the 4th control instruction.
8. system according to claim 7, it is characterised in that also include：
5th signal generating unit, for when the temperature of the recuperation of heat water tank is more than three preset values, wherein, the described 3rd presets
Value generates the 5th control instruction more than second preset value；
5th control unit, for closing the recuperation of heat water pump according to the 5th control instruction.
9. system according to claim 8, it is characterised in that also include：
4th judging unit, for judging whether the compressor closes；
6th signal generating unit, for when judging that the compressor is closed, generating the 6th control instruction；
6th control unit, for closing the recuperation of heat water pump according to the 6th control instruction.
10. system according to claim 6, it is characterised in that also include：
5th judging unit, for when the temperature of the recuperation of heat water tank is less than or equal to the first preset value, judging the compression
Whether the opening time of machine is more than the second Preset Time；
Second detector unit, it is for when the opening time for judging the compressor the second Preset Time is more than, default the 3rd
In time period, whether detection recuperation of heat water flow switch is changed into closure from disconnection；
7th signal generating unit, for when in the 3rd preset time period detect recuperation of heat water flow switch from disconnection be changed into closure when,
Generate the 7th control instruction；
7th control unit, for opening the recuperation of heat water pump according to the 7th control instruction.
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| CN201510673392.2A CN105201806B (en) | 2015-10-13 | 2015-10-13 | Control method and system for heat recovery water pump |
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|---|---|---|---|
| CN201510673392.2A CN105201806B (en) | 2015-10-13 | 2015-10-13 | Control method and system for heat recovery water pump |
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| CN105201806B true CN105201806B (en) | 2017-03-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031135A (en) * | 1978-10-10 | 1980-04-16 | Marks & Spencer Ltd | Heat reclaim plant |
| CN103363618A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Multi-module air conditioner and heat recovery control method thereof |
| CN204082507U (en) * | 2014-02-14 | 2015-01-07 | 潘天银 | Residual neat recovering system constant temperature control circuit |
| CN104390392A (en) * | 2014-11-21 | 2015-03-04 | 珠海格力电器股份有限公司 | Partial heat recovery control method and system |
| CN104567164A (en) * | 2015-01-21 | 2015-04-29 | 珠海格力电器股份有限公司 | Heat recovery unit and control method and device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174436A (en) * | 1993-12-17 | 1995-07-14 | Shimizu Corp | River water utilizing heat recovery system |
-
2015
- 2015-10-13 CN CN201510673392.2A patent/CN105201806B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031135A (en) * | 1978-10-10 | 1980-04-16 | Marks & Spencer Ltd | Heat reclaim plant |
| CN103363618A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Multi-module air conditioner and heat recovery control method thereof |
| CN204082507U (en) * | 2014-02-14 | 2015-01-07 | 潘天银 | Residual neat recovering system constant temperature control circuit |
| CN104390392A (en) * | 2014-11-21 | 2015-03-04 | 珠海格力电器股份有限公司 | Partial heat recovery control method and system |
| CN104567164A (en) * | 2015-01-21 | 2015-04-29 | 珠海格力电器股份有限公司 | Heat recovery unit and control method and device thereof |
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| Publication number | Publication date |
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| CN105201806A (en) | 2015-12-30 |
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