CN102466272A - Novel water-saving system of energy-saving heat exchanger - Google Patents
Novel water-saving system of energy-saving heat exchanger Download PDFInfo
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- CN102466272A CN102466272A CN2010105432855A CN201010543285A CN102466272A CN 102466272 A CN102466272 A CN 102466272A CN 2010105432855 A CN2010105432855 A CN 2010105432855A CN 201010543285 A CN201010543285 A CN 201010543285A CN 102466272 A CN102466272 A CN 102466272A
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Abstract
The invention provides a novel water-saving system of an energy-saving heat exchanger, which is characterized by comprising a variable sound velocity auto-boosting heat exchanger and a water treatment system; hot water subjected to heat exchange by the variable sound velocity auto-boosting heat exchanger is changed into cooled circulating water after passing through a heating system; and the circulating water is purified through the water treatment system to be changed into purified water and then enters the variable sound velocity auto-boosting heat exchanger again to be recycled. By using the novel water-saving system of the energy-saving heat exchanger, energy can be saved; furthermore, water can also be saved.
Description
Technical field
The present invention relates to a kind of energy-saving heat exchanger water-saving system, be specifically related to a kind of energy-saving heat exchanger water-saving system of forming from pressurizing heat exchanger and water treatment system by change of voice speed.
Background technology
At present, the national central heating gross area surpasses 30,000,000,000,000 square meters, and heating equipment is outmoded; Phenomenons such as run, drip, leak are very serious; Preresearch estimates, the thermal loss of city thermal net 30% accounts for 18% of heat cost; A large amount of thermal losses causes the heating enterprise operating cost high, and heat cost constantly increases.Moreover, heating system can occur condensed water through the heating back in each link, has caused the waste of water.
How efficiently utilizing the resource energy, stop the energy dissipation behavior, is one of primary difficult problem of constructing economical society.Because the restriction of heating equipment that tradition is outmoded and backward heating system, and the non-reasonable utilization of mass energy have directly caused " thermal losses " to grow in intensity, the waste of water also fails to stop.Effective heating and energy saving equipment and conservation measures have become the active demand of building energy-conservation society instantly.
Summary of the invention
In view of above problem; The object of the present invention is to provide a kind of not only energy-conservation and also the water saving the energy-saving heat exchanger water-saving system; It is characterized in that; This system is made up of from pressurizing heat exchanger and water treatment system change of voice speed; By the recirculated water that becomes cooling after the hot water process heating system of change of voice speed after pressurizing heat exchanger carries out heat exchange; This recirculated water purifies through water treatment system and becomes to purify waste water and get into change of voice speed more again and use from pressurizing heat exchanger regeneration; Said change of voice speed comprises first shell, second shell, the 3rd shell, shell, the first inner bag jet element, the second inner bag jet element and the 3rd inner bag jet element all round from pressurizing heat exchanger, and between first shell and second shell, between second shell and the 3rd shell, the 3rd shell is connected through bolt by flange between the shell with all round, a side outer rim of the first inner bag jet element is clipped between first shell and second shell and is fixed; The outer rim of the second inner bag jet element is clipped between second shell and the 3rd shell and is fixed; One side outer rim of the 3rd inner bag jet element is clipped in the 3rd shell and all round between the shell and be fixed, and first shell, second shell, the 3rd shell and internal diameter of shell all round are identical, and second shell and the 3rd shell have the profile of threeway; First shell, second shell, the 3rd shell, the be the common primary flow path that forms a fluid in inner space of shell and the first inner bag jet element, the second inner bag jet element, the 3rd inner bag jet element all round; Another opening that is arranged in outside the primary flow path of second shell is used for purifying waste water after being handled by above-mentioned water treatment system introduced change of voice speed again from pressurizing heat exchanger, and another opening that is positioned at outside the primary flow path of the 3rd shell is secondary water inlet, generally is in closed condition; When the delivery port temperature has specific (special) requirements (as being higher than 100 ℃); Can open it, increase total inflow, the ratio of coordinating steam and water is to satisfy the requirement of whole system.
In above-mentioned energy-saving heat exchanger water-saving system; The preferred first inner bag jet element has the internal diameter contraction section; Being used for will be from the steam of steam inlet in this internal diameter contraction section extruding and supercharging, and the second inner bag jet element forwardly also has the internal diameter contraction section, is used for carrying out sufficient two from the steam of the first inner bag jet element and water from water return outlet and mixes mutually; For making the internal diameter contraction section that can get into the second inner bag jet element from the water of water return outlet smoothly; Reserve an annular space between the first inner bag jet element and the second inner bag jet element, the 3rd inner bag jet element has the internal diameter expanding reach, be used for steam and water two mutually the flowing velocity of amalgam reduce and reduce pressure; Do not contact between the 3rd inner bag jet element and the second inner bag jet element, and have certain clearance.
In above-mentioned energy-saving heat exchanger water-saving system; Preferred said water treatment system comes water promptly to pass through PH adjusting portion, dosing coagulation portion, primary filter portion, hyperfiltration portion and fiber adsorption section successively through the water side after the heating system from former water; A part becomes recycle-water up to standard and flows out; The defective water of a part comes water to be mixed into this water treatment system with former water again; Hyperfiltration portion and fiber adsorption section utilize steam to regenerate, and this steam is the steam that comes out from the steam diversion of supplying with from pressurizing heat exchanger to change of voice speed.
In above-mentioned energy-saving heat exchanger water-saving system, the pressure domain of walker of preferably locating in the steam inlet of said primary flow path is 0.02Mpa～1.6Mpa.
Through using the technical scheme of the invention described above, can access following technique effect.
Because energy-saving heat exchanger water-saving system of the present invention possesses change of voice speed from pressurizing heat exchanger.And the acoustic velocity-variable supercharging energy saver is different from traditional heat exchangers, and maximum difference is to have possessed function of increasing pressure, and it has not only utilized whole steam thermal energies; And successful use internal steam work, promptly it utilizes very low steam pressure, after this installs quick pressurized, heated; Not only can export the discharge pressure that is higher than several times of steam pressures; And equipment itself has also possessed certain flow, when playing the heat exchange effect, also plays the effect of circulating pump, thereby satisfies the pressure and the flow of system requirements; Thereby can reduce to use or do not use circulating pump, play the function of economize on electricity.
In addition, not only purify waste water and get back to the heating water system through pipeline and be recycled, and the condensed water that forms when hyperfiltration portion and fiber adsorption section carried out steam regeneration directly is back in the system, further reduced the waste of water.Simultaneously, this regeneration steam directly uses steam from pressurizing heat exchanger to change of voice speed that come out from the steam diversion of supplying with from, therefore there is no need to be provided with in addition steam generation device, has simplified device structure, and can be further energy-conservation with reduced cost.
In addition, according to foregoing invention, the pressure domain of walker at place, front end steam inlet extends to 0.02Mpa～1.6Mpa, and the influence that changed by inlet water pressure and outlet water pressure.Be fit to very much Chinese heating condition and situation requirement after improving like this, make and move highly stablely, overcome water hammer, frequent shutdown, steam and front and back end variation in water pressure and caused phenomenons such as the undesired and noise of device work is big.
Description of drawings
Fig. 1 is the overall schematic of energy-saving heat exchanger water-saving system of the present invention.
Fig. 2 is the sketch map of the water treatment system that is used for recirculating water purification in the energy-saving heat exchanger water-saving system of the present invention.
(description of reference numerals)
100-change of voice speed is from pressurizing heat exchanger
1-first shell;
2-second shell;
3-the 3rd shell;
4-is shell all round;
The 5-first inner bag jet element;
The 6-second inner bag jet element;
7-the 3rd inner bag jet element;
8A～8F-bolt;
The 9-steam inlet;
The 10-delivery port;
The 11-water treatment system;
12-steam backwash inlet;
The 13-water return outlet;
The secondary water inlet of 14-;
The former water of 21-comes water;
22-On-line Control portion;
The automatic control part of 23-;
24-PH adjusting portion;
25-dosing coagulation portion;
26-Automatic Dosing portion;
27-primary filter portion;
28-hyperfiltration portion;
29-ultraviolet disinfection portion;
30-fiber adsorption section;
31A, the regeneration of 31B-steam;
32,33-waste discharge;
The defective water of 34-;
35-recycle-water up to standard.
The specific embodiment
Below, with reference to accompanying drawing, embodiment of the present invention is elaborated.
Fig. 1 is the overall schematic of energy-saving heat exchanger water-saving system of the present invention.As shown in Figure 1, native system is made up of from pressurizing heat exchanger 100 and water treatment system 11 change of voice speed.Through becoming the recirculated water of cooling after the heating system, this recirculated water purifies through water treatment system and becomes to purify waste water and get into change of voice speed more again and use from pressurizing heat exchanger 100 regeneration by the change of voice speed of the native system hot water after pressurizing heat exchanger 100 carries out heat exchange.
Change of voice speed is parts of being represented by symbol 1 to 10 among Fig. 1 from pressurizing heat exchanger 100; This heat exchanger mainly is made up of seven parts, comprises first shell 1, second shell 2, the 3rd shell 3, the shell 4, the first inner bag jet element 5, the second inner bag jet element 6 and the 3rd inner bag jet element 7 all round.
Be connected through bolt 8A, 8D by flange between first shell 1 and second shell 2.Be connected through bolt 8B, 8E by flange between second shell 2 and the 3rd shell 3.The 3rd shell 3 is connected through bolt 8C, 8F by flange between the shell 4 with all round.
One side outer rim of the first inner bag jet element 5 is clipped between first shell 1 and second shell 2 and is fixed; The outer rim of the second inner bag jet element 6 is clipped between second shell 2 and the 3rd shell 3 and is fixed, and a side outer rim of the 3rd inner bag jet element 7 is clipped in the 3rd shell 3 and all round between the shell 4 and be fixed.
First shell 1, second shell 2, the 3rd shell 3 and internal diameter of shell 4 all round are identical, and second shell 2 and the 3rd shell 3 have the profile of threeway.First shell 1, second shell 2, the 3rd shell 3, the be the common primary flow path that forms a fluid in inner space of shell 4 and the first inner bag jet element 5, the second inner bag jet element 6, the 3rd inner bag jet element 7 all round.Another opening of second shell 2 is that water return outlet 13 is used for purifying waste water after being handled by water treatment system 11 introduced change of voice speed again from pressurizing heat exchanger 100.Another opening that is positioned at outside the primary flow path of the 3rd shell 3 is secondary water inlet 14, and this pair water inlet 14 generally is in closed condition.
As shown in Figure 1, the first inner bag jet element 5 has the internal diameter contraction section, is used for the steam from steam inlet 9 is pushed and supercharging at this internal diameter contraction section.The second inner bag jet element 6 forwardly also has the internal diameter contraction section, is used for carrying out sufficient two from the steam of the first inner bag jet element 5 and water from water return outlet 13 and mixes mutually.For making the internal diameter contraction section that can get into the second inner bag jet element 6 from the water of water return outlet 13 smoothly, reserve an annular space between the first inner bag jet element 5 and the second inner bag jet element 6.
The 3rd inner bag jet element 7 has the internal diameter expanding reach, be used for steam and water two mutually the flowing velocity of amalgam reduce and reduce pressure.Do not contact between the 3rd inner bag jet element 7 and the second inner bag jet element 6, and have certain clearance.
Below, the principle that two-phase fluid is mixed further specifies.Getting into change of voice speed mixes with coming water at mixing chamber (the internal diameter contraction section of the second inner bag jet element 6) through nozzle from the steam of pressurizing heat exchanger 100; So produced steam water interface with certain volumetric ratio; The velocity of sound is lower than the flow velocity of this mixture in this mixture; So can in the narrow cross section of contraction section, overcome sound barrier (when sound barrier is meant speed near velocity of sound; Can catch up with the sound wave that oneself sends and cause seismic wave, and then to quicken producing the phenomenon of obstacle), thus flowing velocity has been accomplished to subacoustic transformation in the pipeline of variable cross-section not.
Because the disturbance velocity (velocity of sound) of the compressed coefficient and liquid medium has direct relation; And the simple substance material compressed coefficient is less than the compressed coefficient of the two-phase mixture of homogeneity; In steam-water directly mixed, the compressible coefficient of steam water interface (compressibility just) can substantially exceed the simple substance steam that constitutes steam water interface or the compressed coefficient that water has respectively separately.
Installing two phase flow chamber (mixing chamber) in the fluid dynamic mechanism through this, the velocity of sound of mixture can reach thundering low value, and promptly per second is tens meters; As long as fluid velocity is worth greater than this, Mach number M that is to say to have produced supersonic speed promptly greater than 1; Can make Mach number reach 10～12 with less energy loss like this; Produce high velocity jet, thereby accomplished from the low velocity of sound → subsonic speed → supersonic transformation, can obtain per second 100～120 meters high velocity jet in outlet this moment.
Below, with reference to Fig. 2, the water treatment system among Fig. 1 11 is described.Fig. 2 is the water treatment system that is used for recirculating water purification in the energy-saving heat exchanger water-saving system of the present invention.
As shown in Figure 2; Water treatment system 11 comes water (water through Fig. 1 after the heating system) side to pass through PH adjusting portion 24, dosing coagulation portion 25, primary filter portion 27, hyperfiltration portion 28 and fiber adsorption section 30 successively from former water; A part becomes recycle-water 35 up to standard and flows out, and a part of defective water 34 comes water 31 to be mixed into this water treatment system 11 with former water again.
Be connected with Automatic Dosing portion 26 in dosing coagulation portion 25, and be connected with ultraviolet disinfection portion 29 in hyperfiltration portion 28.Handle back waste discharge 32,33 in hyperfiltration portion 28 with fiber adsorption section 30.Hyperfiltration portion 28 and fiber adsorption section 30 steam regeneration 31A capable of using, 31B, the steam that utilizes this moment is the steam diversion part from supplying with from pressurizing heat exchanger 100 to change of voice speed directly.So not only need not make steam in addition, and can avoid in hyperfiltration portion 28 and fiber adsorption section 30, forming condensed water and be discharged into outside the system, thus further energy-conservation with reduce cost, and reduced the waste of water.
22 pairs of each part mentioned aboves of On-line Control portion carry out whole On-line Control, and control part 23 is connected with On-line Control portion 22 automatically, are used for realizing the control automation.
Like this, the recirculated water draining of heating system, through removing carbon dioxide with after regulating pH value, the dosing coagulating sedimentation.Follow-up filter process was three stages.Be followed successively by primary filter, nanometer hyperfiltration and fiber filter.Use steam regeneration at nanometer microfilter and fiber filter jar, use ultraviolet source can play disinfective action in the nanometer hyperfiltration.Through three-stage filtration, to purify waste water through the warm water system of pipeline back production, few condensate liquid of steam regeneration effluxes.
Each several part to water treatment system 11 illustrates in greater detail as follows.
1. on-line control system (On-line Control portion 22)
On-line control system is made up of probe, cable, holding wire and PLC.The PLC SECO, the work under programme-control of each probe.Each unit in service is all according to the self-condition auto-control, and is sensitive reliable.Like focus and monitoring index unusual fluctuations; The control system will measure and convert to rapidly the signal of telecommunication in the several seconds; Command control system is discharged system with the former water of severe contamination, with the safety of assurance device with go out the water quality water quality reaching standard, improved the impact resistance of device.
2. automatic control system (automatically control part 23)
Native system adopts reliable PLC to control system.Adopt logical sequence and programme-control, each unit both can be controlled according to ruuning situation separately automatically, can when operation, complement each other to form integral framework again, had guaranteed the safety of device, reduced manually-operated.
3. nanometer microfilter (hyperfiltration portion 28)
(1) main effect
Disposable whole particulates of holding back Φ >=0.1 μ m;
Hold back 95% colloidal particles (0.001≤Φ≤0.1 μ m);
Hold back the part high volence metal ion, iron content can be reduced to 150ppb;
Remove oil-containing in the water;
Ensure the condition of work of composite fibre, prolong the life-span of fiber functional group.
(2) principle
Microfilter is selected high-temperature resistant nano pottery for use, is that a kind of to collect absorption, surface filtration, in-depth filtration be the filter method of one.Its mechanism is chemical combination, inertial collision, spread and hold back.Not only play the physical filtering effect, also have the suction-operated of Van der Waals force and chemical bond, therefore can remove the oil and the high volence metal ion of emulsification attitude, solubilised state.
(3) regeneration
Microfilter is according to pollutant degree automatic regeneration.Use 160 ℃～260 ℃ steam, clean, make molecular film and functional group be able to regeneration microfilter is counter.In the system, when certain microfilter recoils, all the other equipment operate as normal.Backwash uses the minute quantity condensate liquid of steam to efflux.
4. fiber adsorption tanks (fiber adsorption section 30)
The fiber adsorption tanks belong to the secondary filter device, and main filter element is the fiber absorption felt that has a large amount of functional groups.
(1) main effect is to remove remaining oil and inorganic ions, makes oil content≤1ppm in the water, and total iron content is reduced to 50 μ g/l.
(2) adsorbent is to be processed by compound adsorbing fiber felt.Have that pore structure is intensive, specific area is big, the characteristics of high adsorption capacity, specific area: 1600m
2/ g.The various functional groups of the activated adding of fibrofelt can use different activated technology according to customer requirements.
(3) the fiber adsorption tanks use 160 ℃～260 ℃ steam regeneration, make composite fibre wherein carry out desorption, make functional group be able to regeneration.When certain fiber adsorption tanks recoiled, other equipment normally moved.Steam is used in backwash, and the water yield is few, effluxes.
Below, the overall operation of energy-saving heat exchanger water-saving system of the present invention is elaborated.
Steam and water are accomplished from the inside of pressurizing heat exchanger 100 in change of voice speed and are mixed, and this physical process has realized that the conversion of energy reaches from supercharging, for device brings power.Mixed flow is heat supply after heat exchanging pipe is accomplished heat transfer process in the heating system of Fig. 1.Circulation water for heating gets into water treatment system 11, can be used as the regeneration water source through purifying waste water of purification and gets into the heat supply water supply system.This energy-saving heat exchanger water-saving system filtration system adopts steam backwash regeneration, and its condensate liquid water yield seldom effluxes.
Through the heat exchange of steam and water, the steam inlet 9 entering water back and from water return outlet 13 of steam from Fig. 1 mixes the back and gets into heating systems by delivery port 10, goes out water return outlet 13 from delivery port 10 like this and goes into to form reciprocation cycle, reaches hydronic purpose.
In addition; According to the invention described above; The pressure domain of walker at place, front end steam inlet extends to 0.02Mpa～1.6Mpa, and the influence that changed by inlet water pressure and outlet water pressure, is fit to very much Chinese heating condition and situation requirement; Make operation highly stable, overcome water hammer, frequent shutdown, steam and front and back end variation in water pressure and caused phenomenons such as the undesired and noise of device work is big.
Utilize the energy-saving heat exchanger water-saving system of forming from pressurizing heat exchanger and water treatment system by change of voice speed of the present invention; Can not only reduce to use or do not use circulating pump and play the function of economize on electricity; Can also the simplified apparatus structure, and can be further energy-conservation with reduced cost.
More than; Energy-saving heat exchanger water-saving system of the present invention is specified; But the present invention not by these embodiments limit, and those skilled in the art can should be included within the scope of the present invention just change all scopes of perhaps replacing without creative work.
Claims (4)
1. an energy-saving heat exchanger water-saving system is characterized in that,
This system is made up of from pressurizing heat exchanger and water treatment system change of voice speed; By the recirculated water that becomes cooling after the hot water process heating system of change of voice speed after pressurizing heat exchanger carries out heat exchange; This recirculated water purifies through water treatment system and becomes to purify waste water and get into change of voice speed more again and use from pressurizing heat exchanger regeneration
Said change of voice speed comprises first shell, second shell, the 3rd shell, shell, the first inner bag jet element, the second inner bag jet element and the 3rd inner bag jet element all round from pressurizing heat exchanger,
Between first shell and second shell, between second shell and the 3rd shell, the 3rd shell is connected through bolt by flange between the shell with all round,
One side outer rim of the first inner bag jet element is clipped between first shell and second shell and is fixed; The outer rim of the second inner bag jet element is clipped between second shell and the 3rd shell and is fixed; One side outer rim of the 3rd inner bag jet element is clipped in the 3rd shell and all round between the shell and be fixed
First shell, second shell, the 3rd shell and internal diameter of shell all round are identical; And second shell and the 3rd shell have the profile of threeway; First shell, second shell, the 3rd shell, the be the common primary flow path that forms a fluid in inner space of shell and the first inner bag jet element, the second inner bag jet element, the 3rd inner bag jet element all round; Another opening that is arranged in outside the primary flow path of second shell is used for purifying waste water after being handled by above-mentioned water treatment system introduced change of voice speed again from pressurizing heat exchanger; Another opening that is positioned at outside the primary flow path of the 3rd shell is secondary water inlet, generally is in closed condition.
2. energy-saving heat exchanger water-saving system as claimed in claim 1 is characterized in that,
The first inner bag jet element has the internal diameter contraction section, is used for the steam from the steam inlet is pushed and supercharging at this internal diameter contraction section,
The second inner bag jet element forwardly has the internal diameter contraction section; Being used for carrying out sufficient two from the steam of the first inner bag jet element and water from water return outlet mixes mutually; For making the internal diameter contraction section that can get into the second inner bag jet element from the water of water return outlet smoothly; Reserve an annular space between the first inner bag jet element and the second inner bag jet element
The 3rd inner bag jet element has the internal diameter expanding reach, be used for steam and water two mutually the flowing velocity of amalgam reduce and reduce pressure, do not contact between the 3rd inner bag jet element and the second inner bag jet element, and have certain clearance.
3. according to claim 1 or claim 2 energy-saving heat exchanger water-saving system is characterized in that,
Said water treatment system comes water promptly to pass through PH adjusting portion, dosing coagulation portion, primary filter portion, hyperfiltration portion and fiber adsorption section successively through the water side after the heating system from former water; A part becomes recycle-water up to standard and flows out; The defective water of a part comes water to be mixed into this water treatment system with former water again
Hyperfiltration portion and fiber adsorption section utilize steam to regenerate, and this steam is the steam that comes out from the steam diversion of supplying with from pressurizing heat exchanger to change of voice speed.
4. according to claim 1 or claim 2 energy-saving heat exchanger water-saving system is characterized in that,
The pressure domain of walker of locating in the steam inlet of said primary flow path is 0.02Mpa～1.6Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105432855A CN102466272A (en) | 2010-11-15 | 2010-11-15 | Novel water-saving system of energy-saving heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105432855A CN102466272A (en) | 2010-11-15 | 2010-11-15 | Novel water-saving system of energy-saving heat exchanger |
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| CN102466272A true CN102466272A (en) | 2012-05-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728619A (en) * | 2020-12-29 | 2021-04-30 | 吉林同鑫热力集团股份有限公司 | Energy-saving heating system for improving heat supply backwater utilization rate |
| WO2022048094A1 (en) * | 2020-09-02 | 2022-03-10 | 李华玉 | Method for reducing and utilizing heat transfer temperature difference in heat absorption process |
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| WO2022048094A1 (en) * | 2020-09-02 | 2022-03-10 | 李华玉 | Method for reducing and utilizing heat transfer temperature difference in heat absorption process |
| CN112728619A (en) * | 2020-12-29 | 2021-04-30 | 吉林同鑫热力集团股份有限公司 | Energy-saving heating system for improving heat supply backwater utilization rate |
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