CN109458644A - Combined type adjustable water mixing ejector energy-saving device - Google Patents
Combined type adjustable water mixing ejector energy-saving device Download PDFInfo
- Publication number
- CN109458644A CN109458644A CN201811021423.6A CN201811021423A CN109458644A CN 109458644 A CN109458644 A CN 109458644A CN 201811021423 A CN201811021423 A CN 201811021423A CN 109458644 A CN109458644 A CN 109458644A
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- water
- interface
- adjustable
- mixed water
- ejector
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 5
- 239000008400 supply water Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0292—Fluid distribution networks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to a combined type adjustable water mixing ejector energy-saving device, which comprises: the adjustable muddy water sprayer of one-level, the adjustable muddy water sprayer of second grade, the governing valve, the tee bend that supplies water, return water tee bend 5, 4 interface flanges and the pipeline that is used for carrying on the internal connection. The invention integrates various circuit signal test functions, can dynamically adjust the heating mode of the residential district, realizes that floor heating users independently adjust the household valve, obtains proper heat, greatly reduces the power consumption of the circulating pump while improving the working stability of the water mixing jet pump, and can meet the user requirements and save energy.
Description
[technical field]
The present invention relates to urban heating fields, more particularly to one kind to be used for urban heating system second heat in residential quarters
The adjustable mixed water ejector energy saver of the combined type of net.
[background technique]
Circulating pump of the water pump as secondary heat supply network is generallyd use in the heat supply process of downtown areas.During entire heat supply, water
Pump needs are continual to be driven by electricity, and guarantees that user obtains enough quantity of circulating water.Therefore, a large amount of consumption are needed in secondary heat supply network
Electric energy provides circulation power.Meanwhile generally having more complete central heating system as winter building in north of China cities and towns
The basic facilities of heating.In recent years, the user to be warmed oneself using floor is more and more.These users and traditional radiator device
The user of heating is different, and the user of floor heating only needs lower heat supply water temperature, and such as 40-50 DEG C.Using traditional throttle valve
Etc. technologies be difficult that floor heating user is avoided excessively to warm oneself；In addition, being supplied in this building for mixedly warming up radiator device mode
In heating system, the poor work stability of water stream injection pump is mixed, and the power consumption of water pump is very high.Based on the above issues, the present invention mentions
The adjustable mixed water ejector energy saver of a kind of combined type out can carry out dynamic tune for the heating system of this residential quarters
Section realizes that floor heating user registers one's residence valve from main regulation, obtains appropriate heat, is improving the job stability of mixed water stream injection pump
The power consumption of circulating pump is significantly reduced simultaneously, and can meet user demand can realize energy conservation again.
[summary of the invention]
In order to solve the above problem in the prior art, the invention proposes a kind of adjustable mixed water ejector sections of combined type
Energy device, comprising: the adjustable mixed water ejector 1 of level-one, the adjustable mixed water ejector 2 of second level, regulating valve 3, Water-supplying tee joint 4, time
5,4 interface flanges (6-9) of water threeway and the pipeline for carrying out internal connection；
4 interface flanges are first interface flange 6, second interface flange 7, third interface flange 8, the 4th interface method
Orchid 9；
One water outlet of the water supply interface connection Water-supplying tee joint 4 of the adjustable mixed water ejector 1 of level-one；The connection of return water interface
One water outlet of return water threeway 5；The entrance of mixed water interface connection regulating valve 3；
One water outlet of the water supply interface connection Water-supplying tee joint 4 of the adjustable mixed water ejector 2 of second level；The connection of return water interface
The outlet of regulating valve 3；Mixed water interface connects second interface flange 7；
The mixed mouth of a river of the adjustable mixed water ejector 1 of entrance connection level-one of regulating valve 3；The outlet of regulating valve 3 connects second level
The water return outlet of adjustable mixed water ejector 2；
One interface of Water-supplying tee joint 4 connects first interface flange 6, an adjustable mixed water ejector of interface connection level-one
1 water supply interface, another interface connect the water supply interface of the adjustable mixed water ejector 2 of second level；
One interface of return water threeway 5 connects third interface flange 8, and an interface connects the 4th interface flange 9, and in addition one
The return water interface of a adjustable mixed water ejector 2 of interface connection second level.
Further, 6 accessing external network of first interface flange supplies water.
Further, the second interface flange 7 connects building and supplies water.
Further, the third interface flange 8 connects building return water.
Further, the third interface flange 8 connects outer net return water.
Further, the hydraulic characteristic(s) that injector 1 is adjusted in level-one meets formula (1),
Wherein,WithThe respectively feed water inlet of the adjustable injector 1 of level-one, the matter of water return outlet and mixing mouth
Measure flow, unit kg/s；WithRespectively feed water inlet, the pressure of water return outlet and mixing mouth, unit Pa；It is
Jet area product, unit m2；It is mixing chamber sectional area, unit m2；It is the velocity coeffficient of jet pipe；It is
The velocity coeffficient of mixing chamber；It is the velocity coeffficient of diffuser；It is the velocity coeffficient of mixing chamber inlet section；
Wherein, the mixed water ratio u in formula (3) is defined as,
Further, site operation personnel manually or electrically adjusts the adjustable mixed water ejector 1 of level-one and second level is adjustable
The nozzle area of mixed water ejector 2.
Further, first, second, third, fourth interface flange is mutually isostructural interface flange.
The beneficial effect comprise that dynamic regulation can be carried out for the heating system of this residential quarters, realize
Floor heating user registers one's residence valve from main regulation, obtains appropriate heat, big while improving the job stability of mixed water stream injection pump
The power consumption of the reduction circulating pump of width, can meet user demand can realize energy conservation again.
[Detailed description of the invention]
Described herein the drawings are intended to provide a further understanding of the invention, constitutes part of this application, but
It does not constitute improper limitations of the present invention, in the accompanying drawings:
Fig. 1 is the schematic diagram of the adjustable mixed water ejector energy saver of combined type of the invention.
Fig. 2 is the application scenarios schematic diagram of the adjustable mixed water ejector energy saver of combined type of the invention.
[specific embodiment]
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used to explain the present invention but not as a limitation of the invention.
Mixed water ejector energy saver adjustable to a kind of combined type applied by the present invention is described in detail.The present invention
It may be arranged at the building Kou Chu of building building, it is mixed according to the ratio of sets requirement for realizing the water supply of the building and the water of return water
It closes；
As shown in Fig. 1, the adjustable mixed water ejector energy saver of the combined type includes: the adjustable mixed water injection of level-one
Device 1, the adjustable mixed water ejector 2 of second level, regulating valve 3, Water-supplying tee joint 4 and are used for 5,4 interface flanges (6-9) of return water threeway
Carry out the pipeline of internal connection；
4 interface flanges are first interface flange 6, second interface flange 7, third interface flange 8, the 4th interface method
Orchid 9；
One water outlet of the water supply interface connection Water-supplying tee joint 4 of the adjustable mixed water ejector 1 of level-one；The connection of return water interface
One water outlet of return water threeway 5；The entrance of mixed water interface connection regulating valve 3；
One water outlet of the water supply interface connection Water-supplying tee joint 4 of the adjustable mixed water ejector 2 of second level；The connection of return water interface
The outlet of regulating valve 3；Mixed water interface connects second interface flange 7；
The mixed mouth of a river of the adjustable mixed water ejector 1 of entrance connection level-one of regulating valve 3；The outlet of regulating valve 3 connects second level
The water return outlet of adjustable mixed water ejector 2；
One interface of Water-supplying tee joint 4 connects first interface flange 6, an adjustable mixed water ejector of interface connection level-one
1 water supply interface, another interface connect the water supply interface of the adjustable mixed water ejector 2 of second level；
One interface of return water threeway 5 connects third interface flange 8, and an interface connects the 4th interface flange 9, and in addition one
The return water interface of a adjustable mixed water ejector 2 of interface connection second level；
Preferred: 6 accessing external network of first interface flange supplies water；
Preferred: the second interface flange 7 connects building and supplies water；
Preferred: the third interface flange 8 connects building return water；
Preferred: the third interface flange 8 connects outer net return water；
Site operation personnel manually or electrically adjusts the adjustable mixed water ejector 1 of level-one and the adjustable mixed water ejector of second level
2 nozzle area changes the water mixing proportion of outer net water-supply quantity and building return water water, reach the building water-supply quantity of setting with
The purpose of water temperature；
Preferred: the hydraulic characteristic(s) that injector 1 is adjusted in level-one meets formula (1),
Wherein,WithThe respectively feed water inlet of the adjustable injector 1 of level-one, the matter of water return outlet and mixing mouth
Measure flow, unit kg/s；WithRespectively feed water inlet, the pressure of water return outlet and mixing mouth, unit Pa；It is
Jet area product, unit m2；It is mixing chamber sectional area, unit m2；It is the velocity coeffficient of jet pipe；It is
The velocity coeffficient of mixing chamber；It is the velocity coeffficient of diffuser；It is the velocity coeffficient of mixing chamber inlet section；
Wherein, the mixed water ratio u in formula (3) is defined as,
Preferred: the hydraulic characteristic(s) that injector 2 is adjusted in second level is that need to meet formula (5)；
Wherein,WithThe respectively feed water inlet of the adjustable injector 2 of second level, the matter of water return outlet and mixing mouth
Measure flow, unit kg/s；WithRespectively feed water inlet, the pressure of water return outlet and mixing mouth, unit Pa；
It is jet area product, m2；It is mixing chamber sectional area, unit m2；It is the velocity coeffficient of jet pipe；It is mixing
The velocity coeffficient of room；It is the velocity coeffficient of diffuser；It is the velocity coeffficient of mixing chamber inlet section；
Wherein, the mixed water ratio u in formula (7)IIIt is defined as,
Preferred: the working characteristics of regulating valve 3 need to meet formula (9):
Wherein, Δ PvFor the front and back pressure difference of regulating valve 3；kvFor the circulation coefficient of regulating valve 3；ρvFor the water for flowing through regulating valve 3
Density；vvFor the flow velocity at regulating valve 3；
Preferred: the overall situation of the adjustable mixed water ejector energy saver of the combined type mixes water ratio uI+IIPass through formula
(10) it calculates；
It can be obtained by above-mentioned relation,
It is preferred: by adjusting the cross-section area of nozzleAnd the cross-section area of nozzleTo change mixed water ratio uIAnd uII；To adjust
Global mixed water ratio uI+II；
The adjustable mixed water ejector energy saver of this combined type proposed by the invention, uses this specific two-stage
The cascade system of mixed water ejector, has following 4 significant advantages:
(1) global mixed water ratio uI+IIStability be significantly increased.The variation of hydraulic resistance inside building be no more than ±
When 50%, the fluctuation range of the mixed water ratio of the overall situation is no more than ± the 3% of setting value, and the water supply flow variation range of injector is no more than
± the 1% of setting value；
(2) when use combined type proposed by the invention mixes water ejector device, the use of building internal operation " the small temperature difference,
Big flow " mode can effectively reduce the hydraulic unbalance that user sees in building.And external heat supply network uses " the big temperature difference, small flow " mode,
Water circulating pump power consumption can be effectively reduced.Compared with conventional throttle valve mode, under typical scene, outer net circular flow can be reduced
50%, power consumption saves 30%；
(3) adjustable nozzle areaAdjustable range is bigger than the range for mixing water ejector using level-one；Pass through
Such mode, the mixed water ratio u of the overall situationI+IISetting range significantly broaden, can reach 0.1~15.5；
(4) radiator device is used using floor radiator heating, certain customers for Residential Area inner part user
The operational mode of heating can carry out the two different mixed water is respectively adopted and compare the method for operation.It is used using floor radiator heating
Family can adjust valve of registering one's residence as needed, obtain the heat of required appropriateness, avoid excessively warming oneself；
By taking the residential quarters of a typical 50,000 square meter area of heat-supply service as an example, the present invention is told about in cell heat distribution pipe network
Application and its energy-saving effect.This cell has 5 residential building buildings, and the area of heat-supply service in every building is 10,000 square meters.Wherein, 1#
Building, the building 2# Lou He 3# are radiator device users；The building 4# Lou He 5# is floor heating user.
The adjustable mixed water ejector of combined type proposed by the invention is arranged in the building Kou Chu of every building.The work of injector
Make mode are as follows: the hot water come from heating station pipe network enters back into building after the injection of overmulling water ejector, mixing return water operation
It is internal.
Under design conditions, the pressure of supply water of heat source is 4.9bar, pressure of return water 2.0bar.Injector 1, injector 2
Water supply flow with injector 3 is 150T/h, circling water flow rate 150T/h, mixed traffic 300T/h.At this point, jet pump is mixed
Water ratio is 1.0.The water supply flow of injector 4 and injector 5 is 140 T/h, circling water flow rate 180T/h, mixed traffic 330T/
h.At this point, the mixed water ratio of jet pump is 1.286.
When heat source supply water temperature is 70 DEG C, the building 1#, user's design temperature of return water in the building 2# Lou He 3# is 50 DEG C.Then basis
Mixed water is designed than the building 1.0, Ke get 1#, the inlet temperature of the radiator device in the building 2# Lou He 3# is 60 DEG C.In building, user
The temperature decline of radiator is only 10 DEG C, but flow can reach 300T/h.Running " the small temperature difference, big flow " mode in this building can
Effectively reduce the hydraulic unbalance that user in building sees.And the external heat supply network of heat source to building entrance is square using " the big temperature difference, small flow "
Formula can effectively reduce water circulating pump power consumption.
When heat source supply water temperature is 70 DEG C, user's design temperature of return water in the building 4# Lou He 5# is 45 DEG C.Then according to design
Mixed water is 55.9 DEG C than the inlet temperature of the radiator for floor heating in the building 1.2, Ke get 4# Lou He 5#.It is used relative to radiator device
The average heating temperature at family, floor heating user is lower.Moreover, in the building 4# Lou He 5#, the temperature decline of radiator for floor heating is only
10.9 DEG C, but flow can reach 320T/h.Equally, the building 4# Lou He 5# also has the side that " the small temperature difference, big flow " is run in building
Formula.
When the building 1#~building 5# internal drag variation ± 50%, the water supply flow variation of the injector where each building mouth is equal
Within ± 1%, the fluctuation range that injector mixes water ratio is no more than ± the 3% of setting value.Therefore, use is proposed by the invention
Combined type mix water ejector device can greatly improve building for water stability.
Compared with conventional throttle valve mode, under this typical scene, outer net circular flow can reduce 50%, power consumption saving
30%.
Compared with traditional single-stage mixes water ejector, combined type proposed by the invention, which mixes water ejector device, has 2 grades
Injector carries out cascade operation.In this way, total adjustable sectional area of nozzle is improved, to the mixed water of the overall situation there are two adjustable injector
The adjustable range of ratio can increase substantially.In this example, the nozzle overall situation mixes water ratio uI+IISetting range significantly broaden,
It can reach 0.1~15.5.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (8)
1. a kind of adjustable mixed water ejector energy saver of combined type, which is characterized in that the adjustable mixed water injection of the combined type
Device energy saver includes: that level-one is adjustable mixed water ejector (1), and second level is adjustable mixed water ejector (2), and regulating valve (3) supplies water
Threeway (4), return water threeway (5), 4 interface flanges and the pipeline for carrying out internal connection；
4 interface flanges are first interface flange (6), second interface flange (7), third interface flange (8), the 4th interface
Flange (9)；
One water outlet of water supply interface connection Water-supplying tee joint (4) of level-one adjustable mixed water ejector (1)；The connection of return water interface
One water outlet of return water threeway (5)；The entrance of mixed water interface connection regulating valve (3)；
One water outlet of water supply interface connection Water-supplying tee joint (4) of second level adjustable mixed water ejector (2)；The connection of return water interface
The outlet of regulating valve (3)；Mixed water interface connection second interface flange (7)；
The mixed mouth of a river of the entrance connection level-one adjustable mixed water ejector (1) of regulating valve (3)；The outlet connection two of regulating valve (3)
The water return outlet of grade adjustable mixed water ejector (2)；
One interface of Water-supplying tee joint (4) connects first interface flange (6), an adjustable mixed water ejector of interface connection level-one
(1) water supply interface, another interface connect the water supply interface of second level adjustable mixed water ejector (2)；
One interface of return water threeway (5) connects third interface flange (8), and an interface connects the 4th interface flange (9), in addition
The return water interface of one interface connection second level adjustable mixed water ejector (2).
2. the adjustable mixed water ejector energy saver of combined type according to claim 1, which is characterized in that described first connects
Mouth flange (6) accessing external network supplies water.
3. the adjustable mixed water ejector energy saver of combined type according to claim 2, which is characterized in that described second connects
Mouth flange (7) connects building and supplies water.
4. the adjustable mixed water ejector energy saver of combined type according to claim 3, which is characterized in that the third connects
Mouth flange (8) connects building return water.
5. the adjustable mixed water ejector energy saver of combined type according to claim 4, which is characterized in that the third connects
Mouth flange (8) connects outer net return water.
6. the adjustable mixed water ejector energy saver of combined type according to claim 5, which is characterized in that level-one is adjustable
The hydraulic characteristic(s) of injector 1 meets formula (1),
Wherein,WithThe respectively feed water inlet of the adjustable injector 1 of level-one, the quality stream of water return outlet and mixing mouth
Amount, unit kg/s；WithRespectively feed water inlet, the pressure of water return outlet and mixing mouth, unit Pa；It is nozzle
Discharge area, unit m2；It is mixing chamber sectional area, unit m2；It is the velocity coeffficient of jet pipe；It is mixing chamber
Velocity coeffficient；It is the velocity coeffficient of diffuser；It is the velocity coeffficient of mixing chamber inlet section；
Wherein, the mixed water ratio u in formula (3) is defined as,
7. the adjustable mixed water ejector energy saver of combined type according to claim 6, which is characterized in that execute-in-place people
Member manually or electrically adjusts the nozzle area of level-one adjustable mixed water ejector (1) and second level adjustable mixed water ejector (2).
8. the adjustable mixed water ejector energy saver of combined type according to claim 7, which is characterized in that described first,
Second, third, the 4th interface flange be mutually isostructural interface flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021423.6A CN109458644B (en) | 2018-09-03 | 2018-09-03 | Combined type adjustable water mixing ejector energy-saving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021423.6A CN109458644B (en) | 2018-09-03 | 2018-09-03 | Combined type adjustable water mixing ejector energy-saving device |
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| Publication Number | Publication Date |
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| CN109458644A true CN109458644A (en) | 2019-03-12 |
| CN109458644B CN109458644B (en) | 2021-04-09 |
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ID=65606485
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1451484A1 (en) * | 1986-11-26 | 1989-01-15 | Одесский Технологический Институт Холодильной Промышленности | Cryogenic installation |
| CN106812730A (en) * | 2015-12-01 | 2017-06-09 | 杭州恒勋能源科技有限公司 | A kind of adjustable integral formula multi-stage jet heat pump |
| CN206875538U (en) * | 2017-04-25 | 2018-01-12 | 太原市热力公司 | Thermal power cogeneration central heating system one-level net direct-furnish heat user heating plant |
-
2018
- 2018-09-03 CN CN201811021423.6A patent/CN109458644B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1451484A1 (en) * | 1986-11-26 | 1989-01-15 | Одесский Технологический Институт Холодильной Промышленности | Cryogenic installation |
| CN106812730A (en) * | 2015-12-01 | 2017-06-09 | 杭州恒勋能源科技有限公司 | A kind of adjustable integral formula multi-stage jet heat pump |
| CN206875538U (en) * | 2017-04-25 | 2018-01-12 | 太原市热力公司 | Thermal power cogeneration central heating system one-level net direct-furnish heat user heating plant |
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| CN109458644B (en) | 2021-04-09 |
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