CN109654771A - A kind of residual neat recovering system of power plant cooling water - Google Patents
A kind of residual neat recovering system of power plant cooling water Download PDFInfo
- Publication number
- CN109654771A CN109654771A CN201811583328.5A CN201811583328A CN109654771A CN 109654771 A CN109654771 A CN 109654771A CN 201811583328 A CN201811583328 A CN 201811583328A CN 109654771 A CN109654771 A CN 109654771A
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- China
- Prior art keywords
- cooling water
- heat
- power plant
- heat exchange
- residual neat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
Abstract
The invention discloses a kind of residual neat recovering systems of power plant cooling water, including cooling water collecting-tank, heat-exchanger rig, compressor, condenser and throttling set；Heat-exchanger rig includes the heat exchange coil of one group be horizontally placed in cooling water collecting-tank or at least two groups parallel connection；Heat-exchanger rig, compressor, condenser and throttling set are sequentially connected and form the circulatory system of closure.The residual neat recovering system of power plant cooling water of the invention can effectively be recycled the waste heat of power plant cooling water, and can continuous recycling.
Description
Technical field
The present invention relates to power plant cooling water processing technology fields, return in particular to a kind of waste heat of power plant cooling water
Receipts system.
Background technique
Energy and environmental problem caused by production of energy and energy-consuming has become serious restriction China's sustainable development
One of major issue, how to make full use of the low temperature exhaust heat discharged in industrial processes that will become China's economy more
One of good, approach faster developed.Power plant cooling water not only stability of flow, continually, and power plant cooling water temperature is higher,
Carry a large amount of waste heats.
However, the waste heat of power plant cooling water is there are two types of processing mode at present, first, directly ignore this part of waste heat, not into
Row recycling, disadvantage cause energy waste it is clear that be unfavorable for the recycling of the energy.Second, it is recycled to power plant cooling water
Using directly recycling heat exchange when utilization, i.e., power plant cooling water is transported to the place of needs with water pump, but is contained in cooling water
A certain amount of organic matter and inorganic contaminants, organic matter can make microorganism and algal bloom in water, so that water pump is blocked,
Water pump can be made to corrode when serious；And inorganic matter may further result in pump house scaling and difficult cleaning.
Summary of the invention
In view of this, a kind of residual neat recovering system of power plant cooling water provided by the invention, preferably overcomes above-mentioned existing
The problem of with the presence of technology and defect are closed by the way that heat-exchanger rig, compressor, condenser and throttling set to be sequentially connected and be formed
The circulatory system of conjunction, and it is in parallel that heat-exchanger rig is designed as be horizontally placed in cooling water collecting-tank one group or at least two groups
Heat exchange coil, the residual neat recovering system by compressor in use, release the gaseous state heat-exchange working medium of high temperature and pressure, through cold first
After solidifying heat release, the cooling medium of condenser, which absorbs heat, can be used for being supplied to user, while the gaseous state heat-exchange working medium of high temperature and pressure
The liquid heat-exchange working medium for becoming cryogenic high pressure, then after throttling set throttles, the liquid heat exchange working medium of cryogenic high pressure becomes again
Enter in heat exchange coil at the liquid heat-exchange working medium of low-temp low-pressure, by the cooling water having surplus heat with the band in cooling water collecting-tank
After carrying out direct heat exchange, the low-temp low-pressure liquid heat-exchange working medium in heat exchange coil becomes the gas-liquid mixture of high-temperature low-pressure, then
It is back to compressor compresses and becomes the gaseous state heat-exchange working medium of high temperature and pressure and discharge again, the above-mentioned heat transfer process of repetitive cycling will be electric
The waste heat of factory's cooling water carries out effective recycling.In addition, even if having algae and microbiology class attachment or nothing outside heat exchange coil
Machine object fouling gets up for horizontal positioned heat exchange coil cleaning also easily quick.
The present invention provides the following technical scheme that
A kind of residual neat recovering system of power plant cooling water, including cooling water collecting-tank, the residual neat recovering system further include
Heat-exchanger rig, compressor, condenser and throttling set；
The heat-exchanger rig, which includes that one group be horizontally placed in the cooling water collecting-tank or at least two groups are in parallel, to be changed
Hot coil；
The heat-exchanger rig, the compressor, the condenser and the throttling set are sequentially connected and form closure
The circulatory system.
As a further improvement of the above technical scheme, the heat-exchanger rig includes the heat exchange coil of at least two groups parallel connection；
It is provided with water collector between the heat-exchanger rig and the compressor, is provided between the throttling set and the heat-exchanger rig
Water segregator.
As a further improvement of the above technical scheme, the heat exchange coil is serpentine coil or spiral coil；It is described to change
Hot coil uses aluminum plastic composite pipe.
As a further improvement of the above technical scheme, the condenser includes water inlet end and water outlet.
As a further improvement of the above technical scheme, the throttling set is throttle valve.
As a further improvement of the above technical scheme, suction is provided between the condenser and the throttling set
Pump.
As a further improvement of the above technical scheme, circulating pump is set between the throttling set and the water segregator.
As a further improvement of the above technical scheme, the quantity of the circulating pump is two, and two circulating pumps
It is arranged in parallel.
As a further improvement of the above technical scheme, fixed by first between the adjacent two layers pipe of the heat exchange coil
Part is fixed.
As a further improvement of the above technical scheme, if passing through between the cooling water collecting-tank and the heat exchange coil
Dry second fixing piece is fixed.
Compared with prior art, the beneficial effect of the residual neat recovering system of power plant cooling water of the invention is:
(1) residual neat recovering system of power plant cooling water of the invention is by by heat-exchanger rig, compressor, condenser and throttling
Device is sequentially connected and is formed the circulatory system of closure, and heat-exchanger rig is designed as being horizontally placed in cooling water collecting-tank
The heat exchange coil of one group or at least two groups parallel connection, the residual neat recovering system is in use, release high temperature height by compressor first
The gaseous state heat-exchange working medium of pressure, after condenser condenses heat release, the cooling medium of condenser, which absorbs heat, can be used for being supplied to user,
The gaseous state heat-exchange working medium of high temperature and pressure becomes the liquid heat-exchange working medium of cryogenic high pressure simultaneously, then after throttling set throttles,
The liquid heat-exchange working medium that the liquid heat exchange working medium of cryogenic high pressure becomes low-temp low-pressure again enters in heat exchange coil, process and cooling water
After the cooling water that band in collecting-tank has surplus heat carries out direct heat exchange, the low-temp low-pressure liquid heat-exchange working medium in heat exchange coil is inhaled
The waste heat received in cooling water becomes the gas-liquid mixture of high-temperature low-pressure, then is back to the gaseous state that compressor compresses become high temperature and pressure
Heat-exchange working medium discharges again, the above-mentioned heat transfer process of repetitive cycling, and the waste heat of power plant cooling water is carried out effective recycling.Separately
Outside, clear for horizontal positioned heat exchange coil even if having algae and microbiology class attachment or inorganic matter fouling outside heat exchange coil
Reason is got up also easily quick.
(2) further, the heat-exchanger rig of the residual neat recovering system of power plant cooling water of the invention include at least two groups simultaneously
The heat exchange coil of connection；By being provided with water collector between heat-exchanger rig and compressor, in the heat exchange coil of at least two groups parallel connection
Heat-exchange working medium first flow into compressor after water collector converges, by the way that water segregator is arranged between throttling set and heat-exchanger rig,
It is diverted to the heat-exchange working medium after throttling set throttles in each heat exchange coil through water segregator, so that more conducively entire waste heat returns
The cycle operation of receipts system.
(3) further, the residual neat recovering system of power plant cooling water of the invention passes through the adjacent two layers in heat exchange coil
It is fixed between pipe by the way that the first fixing piece is arranged, deformation occurs when preventing heat exchange coil from exchanging heat in cooling water, mutually
Two interlayers interfere with each other influence heat transfer effect；By solid by being arranged several second between cooling water collecting-tank and heat exchange coil
Determine part to be fixed, so that heat exchange coil is fixed on cooling water and catchment bottom of pond portion, prevent heat exchange coil floating swing in cooling water,
Mutually collision.
In conclusion the structure that the present invention is special, has the advantages that above-mentioned many and practical value, and in similar product
In there are no similar method and publish or use and really belong to innovation, produce handy and practical effect, more existing skill
Art has effects that the multinomial of enhancement, thus more suitable for practical, and there is extensive industrial value.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram of the residual neat recovering system of power plant cooling water of the invention；
Fig. 2 is a kind of structural schematic diagram of heat exchange coil in the residual neat recovering system of power plant cooling water of the invention.
Main element symbol description:
1- residual neat recovering system；
100- cooling water collecting-tank；
200- heat exchange coil；
The first fixing piece of 210-；
300- compressor；
400- condenser；
410- water inlet end；
The water outlet 420-；
500- throttling set；
600- water collector；
700- water segregator；
800- suction pump；
900A- circulating pump；
The second fixing piece of 900B-.
Specific embodiment
To facilitate the understanding of the present invention, it is carried out more below with reference to residual neat recovering system of the relevant drawings to power plant cooling water
Comprehensive description.The embodiment of the residual neat recovering system of power plant cooling water is given in attached drawing.But the waste heat of power plant cooling water
Recovery system can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these
The purpose of embodiment is to keep the disclosure to the residual neat recovering system of power plant cooling water more thorough and comprehensive.
Hereinafter, various embodiments of the present invention will be described more fully.The present invention can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that: there is no various embodiments of the present invention are limited to spy disclosed herein
Determine the intention of embodiment, but should invention is construed as cover in the spirit and scope for falling into various embodiments of the present invention
All adjustment, equivalent and/or optinal plan.
Hereinafter, disclosed in the term " includes " that can be used in various embodiments of the present invention or " may include " instruction
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as existing
Used in various embodiments of the present invention, term " includes ", " having " and its cognate are meant only to indicate special characteristic, number
Word, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude first one or more other
Feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more features, number,
Step, operation, element, component or aforementioned item combination a possibility that.
In various embodiments of the present invention, statement " A or/and B " includes any combination or the institute of the text listed file names with
There is combination, such as, it may include A, it may include B or may include A and B both.
The statement (" first ", " second " etc.) used in various embodiments of the present invention can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, the above statement is not intended to limit the suitable of the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, the first user fills
It sets and indicates different user device with second user device, although the two is all user apparatus.For example, of the invention each not departing from
In the case where the range of kind embodiment, first element is referred to alternatively as second element, and similarly, second element is also referred to as first
Element.
It should also be noted that in the present invention, unless otherwise specific regulation and definition, the arts such as " installation ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection or being integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be and be directly connected to, and can be indirectly connected through an intermediary；It can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
In the present invention, those skilled in the art are it is to be appreciated that indicating position or positional relationship in text
Term be orientation based on the figure or positional relationship, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
The term used in various embodiments of the present invention is used only for the purpose of describing specific embodiments and not anticipates
In limitation various embodiments of the present invention.Unless otherwise defined, otherwise all terms used herein (including technical term and
Scientific term) there is contain identical with the normally understood meaning of various embodiments of the present invention one skilled in the art
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in the various embodiments of invention.
Refering to fig. 1 and Fig. 2, the present invention provides a kind of residual neat recovering systems 1 of power plant cooling water, including cooling water to catchment
Pond 100；The residual neat recovering system 1 further includes heat-exchanger rig, compressor 300, condenser 400 and throttling set 500.The compressor
300 can compress the high-temperature low-pressure heat-exchange working medium for flowing into compressor 300 to obtain the gaseous state heat-exchange working medium of high temperature and pressure.
Preferably, the throttling set 500 is throttle valve, the heat-exchange working medium of cryogenic high pressure can be transformed into low-temp low-pressure
Heat-exchange working medium.
The condenser 400 can be common shell-tube type or bushing type, and water cooled condenser can be used in the present invention, i.e., cold
The cooling medium of condenser 400 is water；The intermediate water pipe of condenser 400 includes water inlet end 410 and water outlet 420；Its water inlet end 410
For external cold water source, the external user terminal in water outlet 420, the high pressure gaseous heat-exchange working medium discharged through compressor 300 into
Enter heat release in condenser 400, the cold water heat absorption that condenser 400 enters from water inlet end 410 becomes hot water and is discharged by water outlet 420
It is supplied to user terminal.
The heat-exchanger rig, the compressor 300, the condenser 400 and the throttling set 500 are sequentially connected and shape
At the circulatory system of closure.
The heat-exchanger rig includes that one group be horizontally placed in the cooling water collecting-tank 100 or at least two groups are in parallel
Heat exchange coil 200；It can be able to be one group of heat exchange coil 200 according to the size of cooling water collecting-tank 100, heat-exchanger rig,
It can be the heat exchange coil 200 of two groups, three groups, four groups, five groups, six groups or more groups.
Preferably, the heat exchange coil 200 is serpentine coil (as shown in Figure 2) or spiral coil, serpentine coil or spiral
The coiling circle number of coil pipe is also configured according to actual needs, and the embodiment of the present invention is with no restrictions.
The flexible pipes such as aluminum plastic composite pipe, PPR or PE-X pipe can be used in above-mentioned heat exchange coil 200.
Preferably, the heat exchange coil 200 use aluminum plastic composite pipe, structure be divided into, in, it is three layers, inside and outside two layers outer
0.94g/cm is greater than by density3Polyethylene and/or ethylene copolymer composition, intermediate core layer uses aluminium foil, between adjacent two layers
Hot melt adhesive close adhesion is all used, then forms to obtain al-plastics composite pipe through composite co-extruding.Due to the sandwich layer of aluminum plastic composite pipe
It is aluminium foil, therefore its flexibility, antioxidant, conductivity of heat and mechanicalness are all very good, is conducive to repeatedly coiling and annular disk back and forth
Around etc..Moreover, the thermal coefficient 0.45w/mk of aluminum plastic composite pipe, thermal resistance is small, therefore under identical supply water temperature, plastic-aluminum is multiple
The thermal conductivity for closing pipe is fine；Temperature use scope is between -70 DEG C to 110 DEG C；Thermal expansion coefficient is 0.025mm/ (mk), pipe
Sub- deformation ratio shrinkage temperature influences small；When temperature is at 95 DEG C, moment burst pressure is still up to 8MPa.
It should be noted that the inventors discovered that, coil heat exchange thermal resistance consists of three parts: 1, intraductal heat exchange working medium is forced to
The convective heat transfer resistance of flowing；2, the thermal conduction resistance of tube wall；3, outer heat transfer free convection thermal resistance is managed.Intraductal heat exchange working medium is forced to flow
Dynamic convective heat transfer resistance very little, can be ignored；The thermal conduction resistance of tube wall is determined by tubing；Heat transfer free convection outside pipe
Thermal resistance is affected.Therefore when heat exchanging is played very big influence by the heat transfer free convection thermal resistance outside one timing of tubing, pipe.
The present inventors have additionally discovered that when heat exchange coil 200 is endways be placed in cooling water collecting-tank 100 when, heat exchange coil 200
Free convection with water can influence each other, and heat transfer mechanism is considerably complicated.When heat exchange coil 200 is to when cooling water heat release, from
What 200 lower layer of heat exchange coil pipe came rises heat exchange generation two kind opposite effects of the wake flow to upper layer pipe, firstly, it washes away upper layer
Pipe, enhances the heat exchange of upper layer pipe；Secondly, the cooling water temperature outside the pipe of upper layer is declined, manage lower layer between cooling water
The temperature difference reduces, and weakens the heat exchange between the heat-exchange working medium and cooling water in heat exchange coil 200.
In addition, the value of the ratio between adjacent two layers tube spacing S and caliber D S/D, and when influencing heat exchange coil 200 and placing vertically
The important ginseng influence factor of heat exchange.When the value very little of S/D, it will form heat exchange dead zone between upper and lower layer pipe, reduce effective heat-transfer surface
Product, deteriorates the heat exchange of upper and lower layer pipe；With the increase of the value of S/D, initially the cooling of cooling water is made due to upper layer pipe
With occupying an leading position, the heat exchange of lower layer's pipe is weakened, and heat transfer intensity is managed lower than lower layer；When S/D increases to a certain critical value (S/D)
When cr, cooling effect and the influence of souring heat exchanging are suitable, keep the heat transfer intensity of upper and lower layer pipe identical, and critical value
It calculates considerably complicated；The value of S/D continues to increase, and wake flow will be dominant to the souring of lower layer's pipe, and lower layer's pipe heat transfer intensity is high
It is managed in lower layer.As it can be seen that heat transfer effect when increase tube spacing can enhance 200 endways placement of heat exchange coil, but unlimitedly increase pipe
Spacing necessarily reduces the heat exchange area in unit space.And it is very big based on the pool area that catchments, if placed vertically using multilayer
Heat exchange coil 200, then will increase the support frame between upper and lower coil pipe, while being also unfavorable for removing fouling etc..
And when being placed horizontally at heat exchange coil 200 in cooling water collecting-tank 100, the shadow of the value exchange hot coil 200 of S/D
Very little is rung, almost can be ignored, therefore the above problem is then not present, on the contrary, heat exchange coil 200 is placed horizontally at cooling
In water collecting-tank 100, the heat transfer effect of heat exchange coil 200 is effectively enhanced, and even if having algae and micro- outside heat exchange coil 200
Biological species attachment or inorganic matter fouling get up for the horizontal positioned cleaning of heat exchange coil 200 also easily quick.
The residual neat recovering system 1 of power plant cooling water of the invention is in use, release high temperature height by compressor 300 first
The gaseous state heat-exchange working medium of pressure, after 400 condensing heat-exchange of condenser, the cold water entered from 400 water inlet end of condenser absorbs heat and becomes
It is supplied to user from water outlet at hot water, while the gaseous state heat-exchange working medium of high temperature and pressure becomes the liquid heat exchange work of cryogenic high pressure
Matter, then after the throttling of throttling set 500, the liquid heat exchange working medium of cryogenic high pressure becomes the liquid heat exchange work of low-temp low-pressure again
Matter enters in heat exchange coil 200, carries out direct heat exchange by the cooling water having surplus heat with the band in cooling water collecting-tank 100
Afterwards, the gas-liquid that the waste heat that the low-temp low-pressure liquid heat-exchange working medium in heat exchange coil 200 absorbs in cooling water becomes high-temperature low-pressure is mixed
Object is closed, then is back to compressor 300 and compresses and become the gaseous state heat-exchange working medium of high temperature and pressure and discharge again, the above-mentioned heat exchange of repetitive cycling
The waste heat of power plant cooling water is carried out effective recycling by process.
Preferably, in the embodiment of the present invention, the heat-exchanger rig includes the heat exchange coil 200 of at least two groups parallel connection；It is described
Water collector 600 is provided between heat-exchanger rig and the compressor 300, between the throttling set 500 and the heat-exchanger rig
It is provided with water segregator 700.One end of every group of heat exchange coil 200 is connect with water collector 600, every group of heat exchange coil 200 it is another
End is connect with water segregator 700.
Further, suction pump 800 is provided between the condenser 400 and the throttling set 500.
Further, circulating pump 900A is set between the throttling set 500 and the water segregator 700.
Preferably, in the embodiment of the present invention, the quantity of the circulating pump 900A is two, and two circulating pump 900A
It is arranged in parallel.
It is understood that above-mentioned suction pump 800 is used for the cryogenic high pressure liquid heat-exchange working medium that will be discharged through condenser 400
It is drawn into throttling set 500.The low-temp low-pressure liquid heat exchange work that above-mentioned circulating pump 900A is used to be discharged through throttling set 500
Matter is delivered in water segregator 700, is arranged in parallel when using two circulating pump 900A, when convenient for wherein 1 circulating pump 900A damage
Other 1 use can be opened, can be repaired or replaced while to damage, not to the use of entire residual neat recovering system 1
It impacts.
It is understood that the heat-exchanger rig of the residual neat recovering system 1 of power plant cooling water of the invention includes at least two groups
Heat exchange coil 200 in parallel；By being provided with water collector 600 between heat-exchanger rig and compressor 300, at least two groups parallel connection
Heat-exchange working medium in heat exchange coil 200 first flows into compressor 300 after the confluence of water collector 600, by throttling set 500 and changing
Water segregator 700 is set between thermal, is diverted to the heat-exchange working medium after throttling set 500 throttles through water segregator 700 each
In heat exchange coil 200, thus the cycle operation of more conducively entire residual neat recovering system 1.
Preferably, in the embodiment of the present invention, pass through the first fixing piece between the adjacent two layers pipe of the heat exchange coil 200
210 are fixed.
The ring-like buckle that can be directly sleeved on two layers adjacent of pipe, and middle part can be used in above-mentioned first fixing piece 210
Divide and is fixed using nuts and bolt, it is easy for removal and installation.
Preferably, in the embodiment of the present invention, if passing through between the cooling water collecting-tank 100 and the heat exchange coil 200
Dry second fixing piece 900B is fixed.
Above-mentioned second fixing piece 900B may include the support rod being vertically arranged and annular buckle, and one end of the support rod is solderable
It connects in 100 bottom of cooling water collecting-tank, the other end connection annular buckle of the support rod, annular buckle is copied in heat exchange coil 200
On, and it is easy for removal and installation.
It should be noted that the residual neat recovering system 1 of power plant cooling water of the invention passes through in the adjacent of heat exchange coil 200
It is fixed between two layers of pipe by the way that the first fixing piece 210 is arranged, when preventing heat exchange coil 200 from exchanging heat in cooling water
Deformation, mutual two interlayer interfere with each other influence heat transfer effect；By leading between cooling water collecting-tank 100 and heat exchange coil 200
It crosses and several second fixing piece 900B are set are fixed, so that heat exchange coil 200 is fixed on 100 bottom of cooling water collecting-tank, prevent
The floating swing in cooling water of heat exchange coil 200 mutually collides.
In conclusion the beneficial effect of the residual neat recovering system 1 of power plant cooling water of the invention is:
(1) residual neat recovering system of power plant cooling water of the invention is by by heat-exchanger rig, compressor, condenser and throttling
Device is sequentially connected and is formed the circulatory system of closure, and heat-exchanger rig is designed as being horizontally placed in cooling water collecting-tank
The heat exchange coil of one group or at least two groups parallel connection, the residual neat recovering system is in use, release high temperature height by compressor first
The gaseous state heat-exchange working medium of pressure, after condensing heat release, the cooling medium of condenser, which absorbs heat, can be used for being supplied to user, while high
The gaseous state heat-exchange working medium of warm high pressure becomes the liquid heat-exchange working medium of cryogenic high pressure, and then after throttling set throttles, low temperature is high
The liquid heat-exchange working medium that the liquid heat exchange working medium of pressure becomes low-temp low-pressure again enters in heat exchange coil, by with cooling water collecting-tank
In the cooling water that has surplus heat of band carry out direct heat exchange after, the low-temp low-pressure liquid heat-exchange working medium in heat exchange coil absorbs cooling
Waste heat in water becomes the gas-liquid mixture of high-temperature low-pressure, then is back to the gaseous state heat exchange work that compressor compresses become high temperature and pressure
Matter discharges again, the above-mentioned heat transfer process of repetitive cycling, and the waste heat of power plant cooling water is carried out effective recycling.In addition, even if
There are algae and microbiology class attachment or inorganic matter fouling outside heat exchange coil, gets up for horizontal positioned heat exchange coil cleaning
Also easily quick.
(2) further, the heat-exchanger rig of the residual neat recovering system of power plant cooling water of the invention include at least two groups simultaneously
The heat exchange coil of connection；By being provided with water collector between heat-exchanger rig and compressor, in the heat exchange coil of at least two groups parallel connection
Heat-exchange working medium first flow into compressor after water collector converges, by the way that water segregator is arranged between throttling set and heat-exchanger rig,
It is diverted to the heat-exchange working medium after throttling set throttles in each heat exchange coil through water segregator, so that more conducively entire waste heat returns
The cycle operation of receipts system.
(3) further, the residual neat recovering system of power plant cooling water of the invention passes through the adjacent two layers in heat exchange coil
It is fixed between pipe by the way that the first fixing piece is arranged, deformation occurs when preventing heat exchange coil from exchanging heat in cooling water, mutually
Two interlayers interfere with each other influence heat transfer effect；By solid by being arranged several second between cooling water collecting-tank and heat exchange coil
Determine part to be fixed, so that heat exchange coil is fixed on cooling water and catchment bottom of pond portion, prevent heat exchange coil floating swing in cooling water,
Mutually collision.
Although the above more term for having used expression structure, such as " heat-exchanger rig ", " cooling water collecting-tank ", " throttling
Device " etc., but it does not exclude the possibility of using other terms.The use of these items is only for more easily describe to conciliate
Release essence of the invention；Being construed as any additional limitation is disagreed with spirit of that invention.
The above is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, inventive formulation and preparation process can have various modifications and variations.All within the spirits and principles of the present invention, institute
Any modification, equivalent substitution, improvement and etc. of work, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of residual neat recovering system of power plant cooling water, including cooling water collecting-tank, which is characterized in that further include heat exchange dress
It sets, compressor, condenser and throttling set；
The heat-exchanger rig includes the heat exchange plate of one group be horizontally placed in the cooling water collecting-tank or at least two groups parallel connection
Pipe；
The heat-exchanger rig, the compressor, the condenser and the throttling set are sequentially connected and form the circulation of closure
System.
2. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the heat-exchanger rig includes
The heat exchange coil of at least two groups parallel connection；Water collector, the throttling set are provided between the heat-exchanger rig and the compressor
Water segregator is provided between the heat-exchanger rig.
3. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the heat exchange coil is snake
Shape coil pipe or spiral coil；The heat exchange coil uses aluminum plastic composite pipe.
4. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the condenser include into
Water end (W.E.) and water outlet.
5. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the throttling set is section
Flow valve.
6. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the condenser with it is described
Suction pump is provided between throttling set.
7. the residual neat recovering system of power plant cooling water according to claim 2, which is characterized in that the throttling set and institute
It states and circulating pump is set between water segregator.
8. the residual neat recovering system of power plant cooling water according to claim 7, which is characterized in that the quantity of the circulating pump
It is two, and two circulating pumps are arranged in parallel.
9. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the phase of the heat exchange coil
It is fixed between adjacent two layers of pipe by the first fixing piece.
10. the residual neat recovering system of power plant cooling water according to claim 1, which is characterized in that the cooling water catchments
It is fixed between pond and the heat exchange coil by several second fixing pieces.
Priority Applications (1)
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| CN201811583328.5A CN109654771A (en) | 2018-12-24 | 2018-12-24 | A kind of residual neat recovering system of power plant cooling water |
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Citations (3)
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|---|---|---|---|---|
| KR20170142505A (en) * | 2016-06-17 | 2017-12-28 | 이완호 | Waste heat recycling system using a hybrid heat pump |
| CN207146904U (en) * | 2017-05-03 | 2018-03-27 | 仲恺农业工程学院 | A kind of life used heat water source heat pump hot-water system with the pool device that catchments |
| CN108050737A (en) * | 2017-12-13 | 2018-05-18 | 阳谷祥光铜业有限公司 | A kind of recirculated water heat-energy recovering apparatus and method |
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|---|---|---|---|---|
| KR20170142505A (en) * | 2016-06-17 | 2017-12-28 | 이완호 | Waste heat recycling system using a hybrid heat pump |
| CN207146904U (en) * | 2017-05-03 | 2018-03-27 | 仲恺农业工程学院 | A kind of life used heat water source heat pump hot-water system with the pool device that catchments |
| CN108050737A (en) * | 2017-12-13 | 2018-05-18 | 阳谷祥光铜业有限公司 | A kind of recirculated water heat-energy recovering apparatus and method |
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