CN202562097U

CN202562097U - Vacuum tube diversion circulating device

Info

Publication number: CN202562097U
Application number: CN2011201917236U
Authority: CN
Inventors: 涂济民; 柯琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-09
Filing date: 2011-06-09
Publication date: 2012-11-28
Anticipated expiration: 2021-06-09

Abstract

A vacuum tube diversion circulating device can thoroughly solve problems existing in the prior art with a single-hole blindgut-shaped vacuum tube and characterized by stagnant water, stagnation drying, high-temperature fouling, and intermittent heat exchanges. The device significantly improves the photo-thermal conversion efficiency of a vacuum tube solar water heating system, lowers the vacuum tube running temperature, reduces the radiant heat loss and slims the possibilities of inner tube fouling and tube explosion. Dead water regions of a water tank are eliminated. The available heat yield of the system is increased and the service lifetime of the system is prolonged. The vacuum tube system is thus integrated. The separation problem between collections and storage is then solved. Requirements for integral installation of buildings in multiple means are then satisfied. The popularization and application of the vacuum tube diversion circulating device are bound to facilitate the technical progress of vacuum tubes and the upgrading and updating of vacuum tube products, make brand-new building integral products developed and enable Chinese vacuum tubes to be competitive in the world stage. The technical barrier which people fail to overcome before is now removed. The vacuum tube industry in our country is pushed into a new stage.

Description

Vacuum tube water conservancy diversion EGR

Technical field

The present invention relates to solar energy heat utilization field; Be a kind of can be on the basis of single hole caecum shape glass-vacuum tube; Set up efficient natural cycle heat exchange mechanism,, reduce high-temperature scaling and bombing probability to improve photo-thermal conversion efficiency and system's aquifer yield of vacuum tube solar water-heater; Realize that the collection storage separates the vacuum tube water conservancy diversion EGR that multiple mode architecture-integral is installed.

Background technology

At the vacuum tube of China's large-scale production and application, can be divided into two big types in glass absorber vacuum tube and metal absorber vacuum tube at present.Wherein so-called glass absorber vacuum tube is called all-glass vacuum tube again, or double-glass evacuated tube; Also be called as Sydney pipe abroad.This type of vacuum tube generally is made up of the glass tube of two different-diameters; Earlier interior Guan Yitou is dissolved and be honored as a queen selective heat-absorbing layer on outer coating; And then the mouth of pipe one end and outer tube are carried out ring-type dissolve envelope, terminally behind the spring support of equipped band getter, vacuumize, dissolve the envelope outer tube simultaneously and form.Glass vacuum pipe heat collector by this maturation process flow process large-scale production is come out has become Chinese solar water heater's main product today.

All-glass vacuum tube with the way that vacuumizes, has solved convection current and the problem of conducting heat waste between thermal-collecting tube and the insulating tube preferably between inside and outside two pipes, self become a single hole blind pipe that can not carry out effective convection circulation heat exchange but make.From the vacuum tube invention so far, gone over decades, the quagmire of all-glass vacuum tube single hole caecum shape poor efficiency heat exchange; And the vacuum tube hot operation, interior duct ligation dirt, blowdown difficulty; Meet the cold water bombing; There is the slough in water tank, and system is difficult to realize collection storage separation an or the like difficult problem, does not all obtain simply and effectively solving from theory into action always.In fact, the above-mentioned a series of defectives of all-glass vacuum tube are just made us concern at the beginning of coming out.Be merely the convection circulation heat transfer problem that solves vacuum tube, solar energy expert both domestic and external has just thought a lot of ways.For example: the heat pipe type vacuum pipe that can improve heat exchange efficiency was just set about developing in the Solar Energy Inst., Beijing in 1986.There was more solar energy expert to research and develop out afterwards again and changed glass inner tube into U type (metal) tubular type vacuum tube; Working medium is the metallic sheath tubular type vacuum tube and the three bushing vacuum pipes (claiming tube-in-tube again) of turnover with one heart; And the straight-through type vacuum pipe opened simultaneously of two terminations of interior pipe or the like is a series of for improving the glass-vacuum tubes of single hole blind pipe convection circulation heat exchange property, or glass-metal vacuum tube.

Should; Above-mentioned these improve and improved the defective that vacuum tube exists to some extent aspect the convection circulation heat exchange; Improved the efficient of vacuum tube convection circulation heat exchange; But caused between a series of glass and the metal inner pipe because of material, dissolved point, the coefficient of expansion is incompatible, and the difficulty that the vacuum tube inner and outer pipe that produces is tightly connected.Simultaneously, also derive the technology for processing and assembling complicacy, consumption of materials is big, and cost increases considerably, and sealing and product reliability reduction etc., more bigger difficult problems.Just because of these a series of cross-centennial difficult problems of vacuum tube long-term existence.So,, think that always it is a kind of technical ripe not enough product, thereby do not carry out the large-scale production utilization although developed double-glass evacuated tube (that is: Sydney pipe) abroad the earliest.So that the whole world up to the present, its output and consumption all have only China to outshine others.Perhaps, all-glass vacuum tube by a large amount of only reasons of using of Chinese is; This double-glass evacuated tube takes the lead in after China realizes that industrialization magnanimity is produced; Though inefficiency; But the pot-type boiler of this non-architecture-integral only needs vacuum tube, attemperater and support three big standardized components, and use just can simply and reliably combine.And compare with the vacuum tube of other modified forms, the production technology of this double-glass evacuated tube is the simplest ripe, and is simple in structure though scientific and technological content is low, cheap, system compact.It is many just in time to satisfy Chinese society doctrine primary stage point, and amount is big, and is wide, cheaply the market demand.So; This by China's solar energy industry production application one, 20 year, only 2009 annual productions just reach 3.53 hundred million, the product that magnanimity typing is already produced; Whether also is there the leeway of further improving, or it is necessary? What the present invention will answer is exactly this problem.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, a kind of vacuum tube water conservancy diversion EGR is provided, can fundamentally solve the vexed solarization of single hole blind pipe shape vacuum tube stagnant water, high-temperature scaling, the handle up situation of heat exchange of intermittence.Reach the photo-thermal conversion efficiency that increases substantially the solar vacuum tube hot-water heating system, reduce the vacuum tube running temperature, reduce the radiation heat loss, and the probability of interior duct ligation dirt and bombing.Eliminate the water tank slough, improve the got thermal yield and the service life of system.Realize the vacuum tube system integration, solve the collection storage and separate, satisfy the difficult problem that multiple mode architecture-integral is installed.Applying of vacuum tube water conservancy diversion EGR will promote technological progress and the upgrading product of vacuum tube to regenerate, and goes to the world for developing brand-new generation architecture-integral product and Chinese vacuum tube, cleared away to fail the technology barrier of capturing always.Promote China's vacuum tube industry and set foot on new step.

The technical solution adopted for the present invention to solve the technical problems is: the basic theory of applied mathematics, hydrodynamics, thermal conduction study and method; With known double-glass evacuated tube nozzle diameter is control criterion; In glass-vacuum tube single hole blind pipe end a glass-vacuum tube water conservancy diversion circulation cover is installed, is abbreviated as kuppe.Kuppe is managed in vacuum tube and is inserted the dividing plate that vertical section is a cotangent curve, and it is cut off is two not connected parts up and down.The top of dividing plate is called the hot water outlet passage.The below of dividing plate is called the cooling water inlet passage.The flex point of cotangent curve drops on the axis of glass-vacuum tube.The pipe exterior portions of dividing plate, the circular platform type cover body that it is left and right, back three-dimensional side constitutes trapezoidal cross-section.The part that cover body base and glass-vacuum tube mouth of pipe termination match is an annular seal ring.Manage the inside and outside organic assembling decorum and be called glass-vacuum tube water conservancy diversion circulation cover.

Outside at kuppe; Put the outer bound edge physical dimension of an inner chamber and circular platform type kuppe and match, and, cut off box-like connector fully for upper and lower two bins by seal diaphragm from circular platform type kuppe lateral surface middle part; Be called upper and lower collector and connect box, abbreviate as: the collector box.Upper and lower two bins of collector box are imported and exported relative the connection with the hot water or cold water of kuppe, and last bin is the hot water transitional storehouse, and direction is provided with the hot water outlet of threaded pipe joint on the box body; Following bin is ' the cold water transitional storehouse, the box body lower direction is provided with the cold water inlet of threaded pipe joint equally.Box body is inside and outside, be thermal insulating warm-keeping layer between the shell.

Whole kuppe and collector box are all used the material nontoxic, anticorrosion, heat insulation, that weatherability is good, by the requirement moulding manufacturing of standardization, modularization, seriation.Kuppe and collector box two big parts constitute the core component of vacuum tube water conservancy diversion EGR of the present invention jointly.

After the cotangent curve dividing plate of kuppe is inserted into the interior pipe of glass-vacuum tube; Guaranteeing that cotangent curve dividing plate both sides and vacuum tube inner tubal wall flexible sealing coincide; And under the annular seal ring of kuppe and the prerequisite that glass-vacuum tube mouth of pipe joint portion overlaps fully, seals, docks, kuppe and vacuum tube are solidified firm the connection.

Install the glass-vacuum tube of kuppe by said procedure; Because with the mouth of pipe of the double-glass evacuated tube of single hole caecum shape; The transformation that the cotangent curve dividing plate that usefulness is inserted is divided into two; Form after the special-purpose import and export passage of hot water or cold water, just make this pipe set up the heat exchange mechanism of macroscopical temperature difference Natural Circulation automatically.But, the double-glass evacuated tube of kuppe only has been installed, can only be applicable to the crouch technological transformation of water tank vacuum tube solar water-heater of traditional high circle of position, also do not possess the realization system integration, the collection storage separates the laterally inserted necessary condition of installing and using.In order to solve this a series of difficult problems, we also must install another important composition parts collector box of the present invention in the outside of glass-vacuum tube water conservancy diversion circulation cover again.Like this, we just can obtain one brand-new, realized the base unit assembly parts of the system integration.This adds the base unit system that kuppe and collector box combine by vacuum tube, owing to self possessed the fundamental characteristics of all heat collectors, can utilize the Natural Circulation heat exchange mechanism of self; Gather the solar irradiation ability endlessly, and through a cold water inlet and a hot water outlet, with other vacuum tube collectors of the same type; Through vertically, or laterally install side by side, carry out parallel connection, series connection; Or also, tandem compound; Constitute scale and do not wait, operating mechanism is different, and how many heat production water yields has other solar thermal collector array.And be built into collection storage through upper and lower circulation pipe and water tank and separate the family expenses of Natural Circulation, forced circulation, constant temperature moisturizing (discharging water), the multiple endless form of single flow or the shared new vacuum-tube solar hot water system of collective.Still with this unit assembly parts called after glass-vacuum tube water conservancy diversion circulating heat collector.

The glass-vacuum tube water conservancy diversion circulating heat collector assembly parts that possess Natural Circulation heat exchange mechanism; Realized the system integration of vacuum tube natural circulation function; Effectively raise the photo-thermal conversion efficiency of system, removed the vexed solarization of vacuum tube stagnant water, the handle up situation of heat exchange of single port.Reduced the running temperature of vacuum tube cycle heat exchange, reduced the radiation heat loss, and interior duct ligation is dirty and the probability of generation bombing, improved the output and the quality of hot water.The basis that the storage of vacuum tube collection separates has been established in the appearance of the base unit assembly parts glass-vacuum tube water conservancy diversion circulating heat collector of the system integration, and is that the architecture-integral that satisfies multiple mode is installed the condition of having created.

Advantage of the present invention and beneficial effect are: owing to select nontoxic, anticorrosion, heat insulation, resistant to thermal aging and weather resistance good thermoplastic new material, new technology for use; By standardization, modularization, seriation requirement; The kuppe of the vacuum tube water conservancy diversion EGR that manufactures and designs and the collector box that matches with it; To lacking the single hole blind pipe shape double-glass evacuated tube of orderly convection current cycle heat exchange mechanism, carry out integrated innovation.Can make double-glass evacuated tube under the prerequisite of making any physical dimension change hardly thereby develop, just can set up the heat exchange mechanism of macroscopical temperature difference circulation automatically, significantly improve the thermal efficiency and the Ke De thermal yield of system.And; Other drawbacks that double-glass evacuated tube solar hot-water series of products are existed for a long time: Guan Wengao, heat waste be big, be prone to fouling, be prone to bombing, blowdown difficulty, water tank slough, be difficult to realize the system integration with collection storage separate, architecture-integral installation that can't vertical or horizontal various ways or the like persistent ailment, also all obtain overcoming and improving of essence simultaneously.Cleared away from the technology barrier of having failed for a long time since double-glass evacuated tube comes out to capture.The industrialized implementation of vacuum tube water conservancy diversion EGR; Will promote China present annual production to reach several hundred million; The technological progress of double-glass evacuated tube series of products and upgrading product are regenerated, and for developing brand-new generation architecture-integral vacuum tube flanker, Chinese vacuum tube are really gone to the world; Promotion China solar energy heat utilization industry society, economic benefit are set foot on new step, make historical contribution.

Description of drawings

Below in conjunction with accompanying drawing and embodiment content of the present invention is further specified.

Fig. 1 is the structure principle chart of glass-vacuum tube kuppe of the present invention.

Fig. 2 is the structural representation of the base components glass-vacuum tube water conservancy diversion circulating heat collector assembly of kuppe of the present invention, collector box and the double-glass evacuated tube system integration.

The flat roof deck compact Natural Circulation constant temperature water supplement vacuum tube hot-water heating system structural representation of Fig. 3 for forming with the horizontal horizontal installation of glass-vacuum tube water conservancy diversion circulating heat collector assembly parts of the present invention.

The balcony wall-hanging Natural Circulation vacuum tube hot-water heating system structural representation of Fig. 4 for forming with the vertical vertical installation of glass-vacuum tube water conservancy diversion circulating heat collector assembly parts of the present invention.

Among the figure: 1 is known double-glass evacuated tube; 2 is the outer tube of glass-vacuum tube; 3 is the interior pipe of glass-vacuum tube; 4 is the termination mouth of pipe of double-glass evacuated tube; 5 are glass-vacuum tube water conservancy diversion circulation cover-kuppe; 6 is the hot water outlet passage of kuppe; 7 is the cold water inlet passage of kuppe; 8 is the cotangent curve dividing plate of kuppe; 9 is the high circle of position of vacuum tube insulation for sleeping in cyclic water tank; 10 is the annular seal ring of kuppe circular platform type cover body; 11 is that upper and lower collector connects box-collector box; 12 is the hot and cold sump dividing plate of collector box; 13 is the hot water outlet pipe in collector box hot water storehouse; 14 is the cold water inlet in collector box cold water storehouse; 15 is glass-vacuum tube water conservancy diversion circulating heat collector; 16 hot water upper circular tubes; 17 is circulation pipe under the cold water; 18 is (circulation) heat storage water tank; 19 is cyclic water tank; 20 is the hot water delivery trunk; 21 are cold water input house steward; 22 are (temperature control) cold water water compensating valve hot water discharging valve of holding concurrently; 23 cold water filtration valves; 24 blowdowns, the freeze proof valve of emptying.

Structure of the present invention is not limited only to shown in the accompanying drawing.

The specific embodiment

With accompanying drawing 1 is example: in the single hole end of known double-glass evacuated tube (1), with the cotangent curve dividing plate (8) of kuppe (5), be inserted into and manage in (3) in the double-glass evacuated tube; Fit like a glove with annular seal ring (10) that is about to kuppe circular platform type cover body and the glass-vacuum tube termination mouth of pipe (4) joint portion, and adhering and sealing is fixed.Then; Again all have been installed and fixed the double-glass evacuated tube (1) of kuppe (5) by above-mentioned same program; All by the combining structure of accompanying drawing 1; The oblique high circle of position of known vacuum tube that is inserted into crouches on the insulation cyclic water tank (9), thereby accomplishes the system assembles of the circulating vacuum tube solar water-heater of novel water conservancy diversion.

With fills with water in the circulating vacuum tube solar water-heater of novel water conservancy diversion of accomplishing system assembles and after placing under the sunlight; Shine under the solarization at the sun; System is like this work: as far as double-glass evacuated tube (1), vertically insert at cotangent curve dividing plate (8) with kuppe (5), and with the identical sealing and fixing of interior pipe (3) wall and the mouth of pipe (4) after; Pipe (3) is near the part of the mouth of pipe (4) in the double-glass evacuated tube; After own quilt screens with optimum seeking method, confirm the cotangent curve thermal insulation board (8) of its optimization isolation length, interior pipe (3) is divided into two makes progress gradually and downward gradually zones of restraining; Its first half has become hot water outlet passage (6), and the latter half then becomes cold water inlet passage (7).

Meanwhile, near the original hot water or cold water's chaos state vacuum tube mouth of pipe (4) is then because the existence of kuppe (5) cover body and being separated naturally.And the hot water or cold water who sets up single hole blind pipe orifice region flow field automatically shunts turnover mechanism.Under irradiation of sunlight, raise with temperature by the water of sun heating in the vacuum tube, density diminishes, and proportion lightens and the buoyancy that produces, enters into the first half isolated area that cotangent curve dividing plate (8) forms along interior pipe (3) upper surface Guan Bi.When hot water enters into this by gradually upwards behind hot water effluent's designated lane (6) of convergence, according to Bernoulli's theorem, under the effect of temperature difference pressure; Along with conduit section is restrained gradually and diminished, flow velocity is accelerated, and static pressure reduces; Dynamic pressure strengthens; Along the hot water outlet designated lane (6) of kuppe (5), break through the water tank cold water pressure and go out the mouth of pipe (4), come-up is to the top of the round attemperater (9) that crouches.Promote the water in the circle attemperater for sleeping in simultaneously, make downward circular motion along tank inner wall.Under the continuous action of water tank temperature difference circulation power; Water at low temperature when water tank bottom; When being compelled to shift the below of glass-vacuum tube (1) single hole blind pipe termination kuppe (5) onto, the lower edge that is configured the cotangent curve dividing plate (8) of kuppe (5) below cold water inlet designated lane (7) is intercepted and captured, and on its resistance hurdle with under guiding; Through the mouth of pipe (4) below cold water inlet designated lane (7), get into pipe (3) in the vacuum tube.And under the effect of high density cold water self gravitation; Sink down into the bottommost of vacuum tube along the following tube wall of interior pipe (3); Constantly floated by the upper tube wall of the preliminarily heated water of the sun in the extruded tube simultaneously, enter into the first half hot water outlet designated lane (6) of cotangent curve dividing plate (8) along interior pipe (3) ... So back and forth, forming double-glass evacuated tube (1) and circle crouches between the insulation heat accumulation cyclic water tank (9); Along prolonging constantly, continue orderly macroscopical efficient natural circulative convection heat exchange mechanism.

Realize the motive power of above-mentioned Natural Circulation heat convection, be radiated the heat energy on the vacuum tube (1) continually, cause the temperature difference that occurs between vacuum tube and the water tank (8) from the sun.That is to say that as long as pipe, case have the temperature difference to exist, this macroscopic convection cycle heat exchange mechanism will naturally-occurring, operation in an orderly manner automatically between the two.Kuppe (4) is being installed afterwards,, all can be being exchanged immediately and take away by the hydrone of orderly macro flow because vacuum tube (1) moment possibly collect the solar radiant energy of receiving.The vexed solarization of vacuum tube (1) stagnant water, the local gasification of high temperature, the handle up non-linear situation of heat exchange of intermittence will obtain the change of essence.So the probability of interior pipe high-temperature scaling must descend with prominent phenomenon of meeting the cold water bombing.The thermal efficiency of system and Ke De thermal yield with the foundation of temperature difference convection circulation mechanism, and are greatly enhanced.

Accompanying drawing 2 is of the present invention two big core components: kuppe (5), collector box (11) with known double-glass evacuated tube (1), constitute the structural representation of the indispensable basic assembly assembly glass-vacuum tube water conservancy diversion circulating heat collector (15) of the present invention jointly.

Kuppe (5) is though can solve the temperature difference circulatory problems of existing high circle of position water tank vacuum tube system for sleeping in well.But, the efficient circulation heat exchange that can't solve horizontal horizontal installation vacuum tube fully, and the collection of vacuum tube storage separation problem.In fact, as long as we put a collector box (11) afterwards more from the outside on the basis of glass-vacuum tube (1) and kuppe (5) assembly, situation just can obtain the change of essence.One possesses independent temperature difference cycle heat exchange function, has realized the assembly parts glass-vacuum tube water conservancy diversion circulating heat collector (15) that single system is integrated, incites somebody to action therefore and moulding.

Each glass-vacuum tube water conservancy diversion circulating heat collector (15); Through the spare interface on the collector box (11), each other just can be parallelly connected through pipeline, or the synthetic bigger solar energy vacuum tube thermal-arrest array of series; Horizontal to realize, or architecture-integral is installed longitudinally.And constitute that Natural Circulation, constant temperature delivery water (moisturizing), forced circulation, collection storage are separated, all kinds of solar hot water systems of architecture-integral aggregate erection.

As for insulation (circulation) heat storage water tank (18) of system, will under the prerequisite that the collection storage separates, carry out hidden (low level) and install according to the constraints of building bearing structure.

Accompanying drawing 3 is for glass-vacuum tube water conservancy diversion circulating heat collector of the present invention (15) assembly parts, horizontal horizontal installation and the flat roof deck compact Natural Circulation constant temperature water supplement vacuum tube hot-water heating system structural representation formed.Water tank also can laterally be installed on the balcony guardrail as the balcony type after suitably handling.

Accompanying drawing 4 is with glass-vacuum tube water conservancy diversion circulating heat collector of the present invention (15) assembly parts, and vertical being installed on the balcony guardrail forms balcony wall-hanging Natural Circulation vacuum tube hot-water heating system knot.

Two core component kuppes (5) of vacuum tube water conservancy diversion EGR of the present invention, the industrialization production of collector box (11) and apply will produce revolutionary impact to the technological progress of China's vacuum tube.For China's high-efficiency vacuum tube series of products get into torrid zone low latitudes country market, established indispensable technical foundation; Also make historical contribution for the development of China's new forms of energy industry and low-carbon economy.

Claims

1. vacuum tube water conservancy diversion EGR; Combine by single hole blind pipe shape double-glass evacuated tube (1), kuppe (5), collector box (11); It is characterized in that kuppe (5) is installed on the single hole blind pipe termination of double-glass evacuated tube (1), collector box (11) is sleeved on the outside of kuppe (5).

2. vacuum tube water conservancy diversion EGR as claimed in claim 1 is characterized in that kuppe (5) inserts pipe inside and is divided into cotangent curve dividing plate (8), and left and right outside the dividing plate pipe, back three-dimensional side is the circular platform type cover body, and the cover body base is annular seal ring (10).

3. vacuum tube water conservancy diversion EGR as claimed in claim 1; The middle part that it is characterized in that collector box (11) is upper and lower two bins by seal diaphragm (12) partition; Last bin direction on box body is provided with hot water outlet (13); Following bin is provided with cold water inlet (14) at the box body lower direction, is thermal insulating warm-keeping layer between the inside and outside shell of box body.

4. vacuum tube water conservancy diversion EGR as claimed in claim 1 is characterized in that at double-glass evacuated tube (1) constituting glass-vacuum tube water conservancy diversion circulating heat collector (15) with after kuppe (5) and collector box (11) are connected.