CN101097078A - Sewage water source heat pump system with showering oval-shaped cavity plate heat exchanger - Google Patents
Sewage water source heat pump system with showering oval-shaped cavity plate heat exchanger Download PDFInfo
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- CN101097078A CN101097078A CNA2007100725379A CN200710072537A CN101097078A CN 101097078 A CN101097078 A CN 101097078A CN A2007100725379 A CNA2007100725379 A CN A2007100725379A CN 200710072537 A CN200710072537 A CN 200710072537A CN 101097078 A CN101097078 A CN 101097078A
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Abstract
The invention discloses a sewage water source heat pump system of plate exchanger with drench laser ellipse cavity, which is characterized by the following: comprising cleaning liquid spray thrower (11), sewage water distributor (12), several ellipse cavity plate (13), bottom water collecting discharge device (14)and frame device (15); arranging the cleaning liquid spray thrower (11)on the upper of the sewage water distributor (12); arranging the frame device (15)on the lower of the sewage water distributor (12); assembling the several ellipse cavity plate (13)in the frame device (15); arranging the bottom water collecting discharge device (14)at the bottom of the frame device (15). This invention possesses good heat exchanging effect and long period stability.
Description
Technical field
The present invention relates to a kind of sewage cold-hot energy recovery system, specifically is a kind of sewage water heat pump system with the showering oval-shaped cavity plate heat exchanger.
Background technology
Municipal sewage is a good low temperature exhaust heat source, and it comprises sanitary sewage and industrial wastewater, can be divided into native sewage water and handle back sewage according to degree of treatment.The municipal sewage water temperature is cool in summer and warm in winter, and annual water temperature amplitude of variation is less relatively.The tax storage of sewage heat energy is higher, can carry out at low-temperature space, and can utilize the zone wider.Recycle the cold and hot energy of municipal sewage with heat pump, it is recycling that the discarded energy is able to as new forms of energy, can be used for satisfying the energy demand of city heat supply, air-conditioning and hot water supply etc., thereby improve energy utilization rate greatly, also can reduce dependence, thereby reduce CO fossil fuel
2, NO
X, SO
XAnd the generating capacity of pollutant such as dust, to the control atmosphere pollution, the protection environment is very useful.But because the particularity of sewage quality, especially native sewage water, contain fibrous materials such as suspension, grease class, bulky grain pollutant, hair, and has a certain viscosity, and the spray equipment that uses is at present mostly realized spray with nozzle, the nozzle arrangements complexity, when spray sewage, promptly be prone to situations such as obstruction, fouling in the short-term operation, have a strong impact on the spray effect, usually cause the heat exchanger that contacts with sewage in the ordinary hot pumping system situations such as burn into fouling, obstruction to occur, cause the heat exchanger heat exchange efficiency low, the heat exchange weak effect.
In the heat pump, the heat exchanger that contacts with sewage is commonly used immersion and shell-tube type, and the immersion heat exchanger is made up of straight tube or helical form bend pipe.The shortcoming of immersion heat exchanger is that the outer flow rate of liquid of pipe is low, and heat transfer temperature difference is little, and heat transfer coefficient is low.Therefore heat exchange area is bigger, bulky, and insensitive to the change of operating mode.Shell and tube exchanger, heat transfer coefficient is higher.Sewage can also can be managed side at shell-side.If sewage is in the pipe side flow, volume flow is little, needs to increase heat exchange tube diameter, causes diameter of the housing to increase, and the advantage of shell and tube exchanger compact conformation has not been existed.If sewage flows at shell-side, be to strengthen flow velocity, need at pipe external space installing deflection plate, sewage is tortuous to flow repeatedly, easier generation incrustation and obstruction in the shell-side space, and shell-side easy cleaning not.
Summary of the invention
The present invention is prone to situations such as burn into fouling, obstruction in order to solve the heat exchanger that contacts with sewage in the existing ordinary hot pumping system, the heat exchanger heat exchange efficiency is low, the problem of heat exchange weak effect, poor stability, and then a kind of sewage source heat pump system with the showering oval-shaped cavity plate heat exchanger is provided.
Technical scheme of the present invention is: the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger comprises four-way change-over valve, compressor, expansion valve, user side heat exchanger, sewage pump, cleaning liquid pump, user's water system circulating pump; The right output port of four-way change-over valve, user side heat exchanger, expansion valve are communicated with successively by refrigerant line, the port of export of compressor is communicated with by refrigerant line with the four-way change-over valve lower port, the arrival end of compressor is communicated with by refrigerant line with the four-way change-over valve upper port, and user's water system circulating pump is arranged between user side heat exchanger and the user terminal and with user side heat exchanger, user terminal and is communicated with respectively by water pipe; It also comprises the showering oval-shaped cavity plate heat exchanger, described showering oval-shaped cavity plate heat exchanger is arranged between four-way change-over valve and the expansion valve and with left port, the expansion valve of four-way change-over valve and is communicated with respectively by refrigerant line, described sewage pump, clean liquid pump respectively with the showering oval-shaped cavity plate heat exchanger by cross current, described showering oval-shaped cavity plate heat exchanger is by cleaning fluid spray thrower, sewage water-locator, several elliptic cavity plates, bottom catchment tapping equipment and frame mounting; The cleaning fluid spray thrower is arranged on the top of sewage water-locator, and frame mounting is arranged on the below of sewage water-locator, and some elliptic cavity plates are fixedly mounted in the frame mounting, and the bottom tapping equipment that catchments is arranged on the bottom of frame mounting.
The present invention has following beneficial effect:
The sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger provided by the present invention has simple in structure, good effect of heat exchange, operation advantage reliably steady in a long-term.Utilize band showering spray type oval-shaped cavity plate heat exchanger to recycle the sewage cold-hot energy in the heat pump, can effectively avoid heat exchanger to be corroded and stop up by sewage, and can in time take out stains, and the use of sewage water-locator and cleaning fluid spray equipment can make descaling method simple and reliable in the heat pump.The present invention has improved the heat exchange efficiency of heat exchanger greatly and has improved the Energy Efficiency Ratio of heat pump, thereby the sewage source heat pump system long-term stability is moved efficiently.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention (direct heat transfer formula, dotted arrow is represented the water (flow) direction in summer, solid arrow is represented the water (flow) direction in winter), Fig. 2 is a systematic schematic diagram of the present invention (indirect heat exchange formula, dotted arrow is represented the water (flow) direction in summer, solid arrow is represented the water (flow) direction in winter), Fig. 3 is a showering oval-shaped cavity plate heat exchanger structure schematic diagram, Fig. 4 is first kind of form structure schematic diagram (positive adverse current of elliptic cavity plate, the 51st, cold-producing medium or intermediary's water flow direction vertically upward, the 52nd, the sewage flow direction vertically downward), Fig. 5 is second kind of form structure schematic diagram (cross-current of elliptic cavity plate, the 53rd, cold-producing medium or intermediary's water are in the same way inwards or the outside flow direction, the 54th, the sewage flow direction vertically downward), Fig. 6 is the third form structure schematic diagram (cross-current of elliptic cavity plate, the 55th, the cold-producing medium or the inwards incorgruous or outside flow direction of intermediary's water, the 56th, the sewage flow direction vertically downward), Fig. 7 is a sewage water-locator structural representation, Fig. 8 is the A-A cutaway view of Fig. 7, and Fig. 9 is the frame mounting structural representation.
The specific embodiment
The specific embodiment one: as Fig. 1, shown in Figure 3, the sewage source heat pump system of the band showering oval-shaped cavity plate heat exchanger of present embodiment, it by four-way change-over valve 2, compressor 3, expansion valve 4, user side heat exchanger 5, sewage pump 6, clean liquid pump 7, user's water system circulating pump 8, it is characterized in that it comprises that also showering oval-shaped cavity plate heat exchanger 1 forms; The right output port of four-way change-over valve 2, user side heat exchanger 5, expansion valve 4 are communicated with successively by refrigerant line, the port of export of compressor 3 is communicated with by refrigerant line with four-way change-over valve 2 lower port, the arrival end of compressor 3 is communicated with by refrigerant line with four-way change-over valve 2 upper port, and user's water system circulating pump 8 is arranged between user side heat exchanger 5 and the user terminal 73 and is communicated with respectively by water pipe with user side heat exchanger 5, user terminal 73; Described showering oval-shaped cavity plate heat exchanger 1 is arranged between four-way change-over valve 2 and the expansion valve 4 and is communicated with respectively by refrigerant line with the left port of four-way change-over valve 2, expansion valve 4, described sewage pump 6, clean liquid pump 7 respectively with showering oval-shaped cavity plate heat exchanger 1 by cross current, described showering oval-shaped cavity plate heat exchanger 1 is by cleaning fluid spray thrower 11, sewage water-locator 12, several elliptic cavity plates 13, bottom catchment tapping equipment 14 and frame mounting 15; Cleaning fluid spray thrower 11 is arranged on the top of sewage water-locator 12, and frame mounting 15 is arranged on the below of sewage water-locator 12, and some elliptic cavity plates 13 are fixedly mounted in the frame mounting 15, and the bottom tapping equipment 14 that catchments is arranged on the bottom of frame mounting 15.Cleaning fluid enters pipe 63 and is arranged on the cleaning fluid spray thrower 11, and sewage inlet pipe 62 is arranged on the sewage water-locator 12, on the tapping equipment 14 that catchments bottom bilge discharge pipe 61 is arranged on.Utilize the showering oval-shaped cavity plate heat exchanger, reclaim heat energy winter from sewage, reclaim cold summer from sewage, the conversion of summer in winter realizes by four-way change-over valve.Present embodiment is a direct heat transfer formula sewage source heat pump system, user side heat exchanger 5 (be condenser winter, and be evaporimeter summer).
Spray heat exchanger is simple in structure, and form is open, is easy to clean and safeguard, installs easily manufacturedly, and manufacturing expense is low; When handling corrosive fluid, can adopt various material, it is convenient to change heat transfer element.Its resistive connection dirt and anti-clogging Corrosion Protection are better than shell and tube exchanger.Sewage (can be native sewage water, also can be to handle back sewage) on heat transfer element, (be generally pipe or flat board) by drenching the uniform sprinkle of excitation device, and flow down along tube wall or wooden partition with the state of liquid film or small amount of drop and liquid stream, meanwhile with medium heat exchange such as cold-producing medium or water.The liquid film that pouring swashs on heat-transfer area is thinner, and gravitate, flows to strengthen, compare with the outer free convection of immersion Tube Sheet of Heat Exchanger, the coefficient of heat transfer is higher, and the small amount of liquid evaporation of film surface, strengthen conducting heat, so the spray heat exchanger heat transfer efficiency is apparently higher than immersion.When the fabricating yard did not have the restriction of height, spray heat exchanger only got final product in the narrower place of accounting in addition.
Band showering oval-shaped cavity plate heat exchanger makes sewage fall within the uniform and stable liquid film of formation on the heat transfer element when spray sewage, and the spray liquid film can make heat exchange property strengthen.When selecting heat transfer element, the present invention has drawn heat transfer element commonly used---and pipe and dull and stereotyped advantage propose this novel heat transfer element of elliptic cavity plate.The elliptic cavity plate is than pipe, has more streamlinedly, strengthens than dull and stereotyped turbulence, uses it in heat pump and the spray heat exchanger that sewage contacts and reclaims sewage heat energy, can strengthen heat transfer, and effectively delay fouling.At the spray structure of heat exchanger, adopt principle simple, the reliable spray Cleaning for High Capacity method of practical operation.Promptly utilize the current with certain pressure, also can add soda acid cleaning agent, biocide, corrosion inhibiter, antisludging agent etc., regularly spray is to remove surperficial dirt, and the grease in the sewage can adopt hot-water spraying's method.The cleaning fluid spray equipment can adopt corrosion resistant nozzle product to realize.
The specific embodiment two: as shown in Figure 4, the described elliptic cavity plate 13 of present embodiment is made up of two sheet material 13-1 that have several half elliptic cavity, and two sheet material 13-1 that have half elliptic cavity are joined together to form the elliptic cavity that several communicate in opposite directions.Present embodiment can be based on metal plate, with the rolling wave plate that has several half elliptic cavity of flat board, per two such plates are formed a couple form several elliptic cavity, and it is edge joint weld is dead, set a distance spot welding is carried out in the centre, solder joint can be arranged to rectangle or triangle, between two plates, form the elliptic cavity that is communicated with like this, promptly one way or the multipass that flows for cold-producing medium or intermediary's water flows, and sewage is shaped liquid film and flows outside the elliptic cavity plate, and the sewage liquid film is vertically descended by gravity, chamber plate inner refrigerant or advance under water on go out, the two becomes parallel positive counter-current flow, and heat transfer temperature difference is bigger, and heat exchange is strengthened.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: as shown in Figure 5, the described elliptic cavity plate 13 of present embodiment is made up of several elliptical tubes 13-2, and described elliptical tube 13-2 is fixed together side by side.Present embodiment is based on the elliptical tube of hot-roll forming, and with many horizontal ellipse tube side-by-sides, an elliptic cavity plate is formed in welding up and down.Cold-producing medium or intermediary's water are along the elliptical tube bottom horizontal flow sheet, and water is shaped liquid film vertically downward outside the elliptic cavity plate, and the two becomes cross-current to flow.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment four: as shown in Figure 6, the described elliptic cavity plate 13 of present embodiment is made up of several elliptical tubes 13-3, several metallic plates 13-4, and is fixedly connected by metallic plate 13-4 between per two elliptical tube 13-3.Present embodiment is based on the elliptical tube of hot-roll forming, and with many horizontal ellipse tube side-by-sides, per two centres add metallic plate, up and down welding.Be fixedly weld plate of outer wall upper edge, every horizontal ellipse pipe bottom axis direction, play the effect that prevents the moisture film bias current.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment five: as shown in Figure 7, the centre distance a between described adjacent two the elliptic cavity plates 13 of present embodiment is 15～25mm, and the width b of each elliptic cavity plate 13 inner chamber is 2～5mm.Sewage contains fibrous and the solid granular material, and has certain viscosity, therefore needs to strengthen the width of sewage runner, i.e. distance between the plate of adjacent ellipses chamber.Other composition is identical with the specific embodiment one, two, three or four with annexation.
The radius of curvature of elliptic cavity reduces, and chamber wall curvature increases, and then limiting case is pipe, on the contrary chamber wall curvature reduce, radius of curvature increases, limiting case is flat board.The elliptic cavity plate structurally is better than pipe.Because being equivalent to one, the elliptic cavity plate lists down the elliptical tube that links to each other, not only on the structure than pipe compactness, and the liquid film arrival pipe bottom of going up the array of pipes runs down both sides is no longer compiled, but directly flow to next array of pipes both sides, reduced the sewage quantity of the outside splash of drop, liquid film more attaches, and heat exchanging is favourable; Groove on the elliptic cavity plate has certain perturbation action to the sewage liquid film on the other hand, can impel the steam bubble motion and break away from liquid film, can also eliminate the influence of liquid bias current effectively, it is more even that liquid film is distributed, be not easy to produce dry-out, the heat exchange of heat transfer element bottom improves.The elliptic cavity plate structurally also is better than flat board.Planar surface is to the too late elliptic cavity plate of the less turbulence of liquid film, and heat-transfer effect is not as good as the elliptic cavity plate.
Elliptic cavity plate in any shape all makes the flow velocity of cold-producing medium or intermediary's water improve, and has strengthened the heat exchange of media such as chamber plate inner refrigerant or intermediary's water.Form the changeable runner of cross section between the adjacent elliptic cavity plate, sewage drenches and swashs at elliptic cavity plate outer surface, has improved the flow condition of the outer liquid film of plate, makes the fluid turbulization effectively, thereby has reduced the thermal resistance of liquid film, improves the coefficient of heat transfer.Strengthen and conduct heat, effectively delay fouling.A plurality of elliptic cavity plates constitute gang's elliptic cavity plate bundle by frame mounting and cold-producing medium or intermediary's water gateway adapter connection.The gateway direction of cold-producing medium or intermediary's water can be as required and homonymy or heteropleural are arranged.Medium in the elliptic cavity plate is a cold-producing medium during direct heat transfer, is water during indirect heat exchange.In use, generally should select for use the elliptical tube of the shape factor of cross-section ratio of transverse axis (the oval longitudinal axis in cross section with) greater than 1 to be welded into the elliptic cavity plate, it is long oval promptly selecting the cross section for use, but not the elliptical tube of flat ellipse.The material of elliptic cavity plate can be according to employing TCs such as economic condition, the copper of aluminizing, plastic-aluminum, titanium, stainless steel etc.For preventing corrosion, other devices that contact with sewage, as the sewage distributor, and frame structure etc. all adopts zinc-plated material.
The specific embodiment six: as Fig. 7, shown in Figure 8, the described sewage water-locator 12 of present embodiment is made up of outer container 17, inner pressurd vessel 18, medial launder 19, first group of dividing plate 20, second group of dividing plate 21, sewage inlet pipe 23, outer container pressure gauge 24, inner pressurd vessel pressure gauge 25; Described inner pressurd vessel 18 is horizontally set in the outer container 17, medial launder 19 is arranged in the inner pressurd vessel 18, first group of dividing plate 20, second group of dividing plate 21 is separately positioned between the outer wall of the inwall of inner pressurd vessel 18 and medial launder 19, first group of dividing plate 20 is positioned at the top of second group of dividing plate 21, sewage inlet pipe 23 and inner pressurd vessel pressure gauge 25 are separately positioned on the side end face of outer container 17 and are communicated with outer container 17 respectively, outer container pressure gauge 24 is arranged on the opposite side end face of outer container 17 and with inner pressurd vessel 18 and is communicated with, described first group of dividing plate 20 is made up of two porous plates, second group of dividing plate 21 is made up of two porous plates, and described porous plate is provided with several water distributing pores 22.Other composition is identical with the specific embodiment one with annexation.
Distance between elliptic cavity plate top and the sewage distributor, and between sewage distributor and the cleaning fluid spray thrower, should reserve certain distance, with convenient for dismounting and washing replacing element, but distance is unsuitable excessive, is about 0.05～0.1m, and distance is crossed senior general and made droplets, the liquid bias current flow is difficult for forming and stablizes liquid film.First group of dividing plate regulated the stagger ratio of two porous plates according to the water quality difference of sewage, thus the size of regulating water distributing pore, and first group of dividing plate also plays the effect of filtration to sewage, can regularly it be removed, and changes or thoroughly cleaning.Second group of dividing plate regulated the stagger ratio of two porous plates according to discharge of sewage size, thereby regulates the water distributing pore size.The effect of two groups of dividing plates is in order to control flow and flow velocity, to prevent bias current, forming vertical stable stream film.The cell wall of medial launder plays the dash effect, and making the water in the inner pressurd vessel is not to flow down simultaneously, but along under the symmetric(al) flow of cell wall both sides of the edge.In addition cold-producing medium or intermediary are advanced the form of last time under water, the cold-producing medium of last time or intermediary's water lines can pass in medial launder, as the elliptic cavity plate of second kind of form among Fig. 5.The flow through sewage of water-locator of the present invention, stability of flow, flow velocity is easy to control, can on each elliptic cavity plate, form the stable liquid film of vertical drop unanimous on the whole, can effectively prevent bias current, liquid film is attached, avoid bottom pipeline section generation dry-out, its essence is a kind of spray equipment of overflow type.The spray equipment that this water-locator is more commonly used than nozzle etc. is simple in structure, form is open, be difficult for stopping up and fouling, be convenient to clean and maintenance, and have certain filtration by first group of dividing plate, water-locator can adopt zinc-plated copper, prevent corrosion, cost of manufacture is low, and is reliable, therefore is more suitable for the sewage spray and uses.
The specific embodiment seven: as shown in Figure 8, the diameter of the described water distributing pore 22 of present embodiment is 3～10mm.So design, stability of flow is easy to control.Other composition is identical with the specific embodiment six with annexation.
The specific embodiment eight: as shown in Figure 7, the below correspondence of described each inner pressurd vessel of present embodiment (18) is provided with an elliptic cavity plate (13).Inner pressurd vessel 18 numbers are identical with elliptic cavity plate 13 numbers, described inner pressurd vessel 18 be positioned at elliptic cavity plate 13 directly over.Sewage enters the bottom of the outer container of a spaciousness through the sewage inlet pipe, and water level rises always, up to the coboundary that reaches the inner pressurd vessel outer wall, water just flows to inner pressurd vessel, and the number of inner pressurd vessel 18 is identical with the number of elliptic cavity plate 13, the position correspondence, the inner reservoir wall height is in the outer container wall height.Other composition is identical with the specific embodiment six with annexation.
The specific embodiment nine: as Fig. 3, shown in Figure 9, the described frame mounting 15 of present embodiment is made up of front standing pillar 27, movable pressure plate 28, fixed pressure plate 29, top guide bar 30, lower guide rod 31, hold-down bolt nut 32, described movable pressure plate 28 is between front standing pillar 27 and fixed pressure plate 29, front standing pillar 27 is connected by hold-down bolt nut 32 with movable pressure plate 28, and movable pressure plate 28 is connected by top guide bar 30, lower guide rod 31 with fixed pressure plate 29.Design of frame mainly is to make the least possible frame mounting touch sewage, avoids fouling and corrosion as much as possible, and makes structure opening, is difficult for stopping up, and the piecemeal activity parts should be set, and to satisfy installing/dismounting at ordinary times, clean and maintenance is convenient.Last lower guide rod is used for fixing the elliptic cavity plate, and can adjust its position, guarantees that the elliptic cavity plate can bear the impact of vibrations or high-pressure spraying pressure.As long as heat exchanger is pulled down hold-down bolt and nut, can take off movable pressure plate, thereby take out, move outward or increase and decrease the elliptic cavity plate, make and clean maintenance, install and use, in time change, increase and decrease elliptic cavity plate (promptly increasing or reduce heat exchange area) etc. is all very convenient.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment ten: as shown in Figure 2, present embodiment also comprises heat exchanger 9 and intermediary's water-circulating pump 10, described heat exchanger 9 is arranged between four-way change-over valve 2 and the expansion valve 4 and is communicated with respectively by refrigerant line with the left port of four-way change-over valve 2, expansion valve 4, heat exchanger 9 and showering oval-shaped cavity plate heat exchanger 1 are communicated with by refrigerant line, and described intermediary water-circulating pump 10 is arranged between showering oval-shaped cavity plate heat exchanger 1 and the heat exchanger 9.Utilize the showering oval-shaped cavity plate heat exchanger, reclaim heat energy winter from sewage, reclaim cold summer from sewage, the conversion of summer in winter realizes by four-way change-over valve.Present embodiment is an indirect heat exchange formula sewage source heat pump system, showering oval-shaped cavity plate heat exchanger 1 (as Intermediate Heat Exchanger), user side heat exchanger 5 (be condenser winter, and be evaporimeter summer), heat exchanger 9 (be that evaporimeter, summer are condenser winter).Other composition is identical with the specific embodiment one with annexation.
The specific embodiment 11: the cleaning fluid spray thrower 11 of present embodiment (lower surface of cleaning fluid spray thrower 11 is provided with several nozzles 16) is in conjunction with the showering spray type structure of heat exchanger, select pressure type spray ablution for use, promptly utilize current with certain pressure, add soda acid cleaning agent, biocide, corrosion inhibiter, antisludging agent etc., or high-pressure water heating, the dirty dirty surface of equipment produced wash away, works such as cavitation erosion, water wedge are in order to remove surperficial dirt.It is a kind of method of taking into account physics cleaning and Chemical cleaning.The spray Cleaning for High Capacity method is the simplest cleaning and descaling method, and its operating cost is low.This spray Cleaning for High Capacity method can realize by the nozzle that is equipped with high pressure water generating device, as the nozzle among Fig. 3 16, spray nozzle device is idle at ordinary times, regularly open according to operating position, the different model that nozzle can select for use the PNR nozzle company of import to produce according to actual needs or the homemade Beijing grand hydraulic pressure nozzle of sail Co., Ltd etc. produces, the nozzle of unlike material.According to water quality difference, heat exchanger surface dirt state and pollution level are selected different spray pressure and cleaning agent for use, and the dirt on heat transfer element surface that makes heat exchanger is stripped under impacting in the infiltration of cleaning agent.After hard or adherence dirt form, can adopt high-pressure spraying.Promptly, produce the Cleaning by High Pressure Water Jet heat exchanger surface by high pressure water generating device.Should satisfy this pressure requirement when selecting nozzle and cleaning liquid pump.Except that common clear water, alternative cleaning fluid also has: 1 acid cleaner, and alkaline cleaner because the solvability of dirt component is different with the variation of pH value, reaches the cleaning purpose by the pH value of controlling washing lotion; The bacterial micro-organism that 2 biocides, corrosion inhibiter, antisludging agent, the cleaning fluid that contains these can make sewage remain on the heat exchanger surface is difficult to existence, thereby delays corrosion and fouling; 3 clean-preserving agents, multicomponent surfactant, degreaser etc.Can also spray high-pressure water heating and high-pressure saturated steam in addition.Because of the greasy dirt in the dirt can not be ignored, can adopt the hot-water spraying to clean and the way of spraying the vapours purge solves it.The heat exchanger that contacts with sewage uses for a long time and must form dirt at heat exchanger surface, and external apparatus for eliminating sludge has automatic cleaning brush of heat exchanger tube and Automatic sieve filter at present, helix, and spiral band etc., we understand less to its scale removal mechanism, complex structure.The apparatus for eliminating sludge of moulding is domestic less, and its general applicability is not strong, and stability is also relatively poor.This spray Cleaning for High Capacity method great advantage that we select for use is exactly that principle is simple, and practical operation is convenient, and long-time running is reliable and stable.
Claims (10)
1, a kind of sewage source heat pump system with the showering oval-shaped cavity plate heat exchanger, it comprises four-way change-over valve (2), compressor (3), expansion valve (4), user side heat exchanger (5), sewage pump (6), cleans liquid pump (7), user's water system circulating pump (8); The right output port of four-way change-over valve (2), user side heat exchanger (5), expansion valve (4) are communicated with successively by refrigerant line, the port of export of compressor (3) is communicated with by refrigerant line with four-way change-over valve (2) lower port, the arrival end of compressor (3) is communicated with by refrigerant line with four-way change-over valve (2) upper port, and user's water system circulating pump (8) is arranged between user side heat exchanger (5) and the user terminal (73) and with user side heat exchanger (5), user terminal (73) and is communicated with respectively by water pipe; It is characterized in that it also comprises showering oval-shaped cavity plate heat exchanger (1), described showering oval-shaped cavity plate heat exchanger (1) be arranged between four-way change-over valve (2) and the expansion valve (4) and with the left port of four-way change-over valve (2), expansion valve (4) is communicated with respectively by refrigerant line, described sewage pump (6), clean liquid pump (7) and pass through cross current with showering oval-shaped cavity plate heat exchanger (1) respectively, described showering oval-shaped cavity plate heat exchanger (1) is by cleaning fluid spray thrower (11), sewage water-locator (12), several elliptic cavity plates (13), tapping equipment (14) and frame mounting (15) catchment in the bottom; Cleaning fluid spray thrower (11) is arranged on the top of sewage water-locator (12), frame mounting (15) is arranged on the below of sewage water-locator (12), some elliptic cavity plates (13) are fixedly mounted in the frame mounting (15), and the bottom tapping equipment (14) that catchments is arranged on the bottom of frame mounting (15).
2, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1, it is characterized in that described elliptic cavity plate (13) is made up of two sheet materials (13-1) that have several half elliptic cavity, two sheet materials (13-1) that have half elliptic cavity are joined together to form the elliptic cavity that several communicate in opposite directions.
3, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1 is characterized in that described elliptic cavity plate (13) is made up of several elliptical tubes (13-2), and described elliptical tube (13-2) is fixed together side by side.
4, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1, it is characterized in that described elliptic cavity plate (13) is made up of several elliptical tubes (13-3), several metallic plates (13-4), fixedly connected between per two elliptical tubes (13-3) by metallic plate (13-4).
5, according to the sewage source heat pump system of claim 1,2,3 or 4 described band showering oval-shaped cavity plate heat exchangers, it is characterized in that the centre distance a between described adjacent two elliptic cavity plates (13) is 15～25mm, the width b of each elliptic cavity plate (13) inner chamber is 2～5mm.
6, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1 is characterized in that described sewage water-locator (12) is made up of outer container (17), inner pressurd vessel (18), medial launder (19), first group of dividing plate (20), second group of dividing plate (21), sewage inlet pipe (23), outer container pressure gauge (24), inner pressurd vessel pressure gauge (25); Described inner pressurd vessel (18) is horizontally set in the outer container (17), medial launder (19) is arranged in the inner pressurd vessel (18), first group of dividing plate (20), second group of dividing plate (21) is separately positioned between the outer wall of the inwall of inner pressurd vessel (18) and medial launder (19), first group of dividing plate (20) is positioned at the top of second group of dividing plate (21), sewage inlet pipe (23) and inner pressurd vessel pressure gauge (25) are separately positioned on the side end face of outer container (17) and are communicated with outer container (17) respectively, outer container pressure gauge (24) is arranged on the opposite side end face of outer container (17) and with inner pressurd vessel (18) and is communicated with described first group of dividing plate (20), be respectively arranged with several water distributing pores (22) on second group of dividing plate (21).
7, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 6, the diameter that it is characterized in that described water distributing pore (22) is 3～10mm.
8, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 6 is characterized in that the below correspondence of described each inner pressurd vessel (18) is provided with an elliptic cavity plate (13).
9, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1, it is characterized in that described frame mounting (15) is by front standing pillar (27), movable pressure plate (28), fixed pressure plate (29), top guide bar (30), lower guide rod (31), hold-down bolt nut (32) is formed, described movable pressure plate (28) is positioned between front standing pillar (27) and the fixed pressure plate (29), front standing pillar (27) is connected by hold-down bolt nut (32) with movable pressure plate (28), and movable pressure plate (28) passes through top guide bar (30) with fixed pressure plate (29), lower guide rod (31) connects.
10, the sewage source heat pump system of band showering oval-shaped cavity plate heat exchanger according to claim 1, it is characterized in that it also comprises heat exchanger (9) and intermediary's water-circulating pump (10), described heat exchanger (9) be arranged between four-way change-over valve (2) and the expansion valve (4) and with the left port of four-way change-over valve (2), expansion valve (4) is communicated with respectively by refrigerant line, heat exchanger (9) is communicated with by refrigerant line with showering oval-shaped cavity plate heat exchanger (1), and described intermediary water-circulating pump (10) is arranged between showering oval-shaped cavity plate heat exchanger (1) and the heat exchanger (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100725379A CN100464137C (en) | 2007-07-20 | 2007-07-20 | Sewage water source heat pump system with showering oval-shaped cavity plate heat exchanger |
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| CNB2007100725379A CN100464137C (en) | 2007-07-20 | 2007-07-20 | Sewage water source heat pump system with showering oval-shaped cavity plate heat exchanger |
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| CN101097078A true CN101097078A (en) | 2008-01-02 |
| CN100464137C CN100464137C (en) | 2009-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100725379A Expired - Fee Related CN100464137C (en) | 2007-07-20 | 2007-07-20 | Sewage water source heat pump system with showering oval-shaped cavity plate heat exchanger |
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Cited By (10)
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| CN101221096B (en) * | 2008-01-23 | 2010-11-10 | 清华大学 | Plate type heat exchanger on-site testing system with non-clean water as heat exchange medium |
| CN102116543A (en) * | 2011-01-07 | 2011-07-06 | 王英慧 | Cold water/heat pump unit directly taking liquid containing solid impurities as cold/heat source |
| CN104279759A (en) * | 2014-08-13 | 2015-01-14 | 广东万家乐燃气具有限公司 | Self-cleaning gas water heater and automatic cleaning method thereof |
| CN104896981A (en) * | 2015-05-08 | 2015-09-09 | 北京建筑大学 | Sewage heat exchange device capable of self-cleaning and inhibiting dirt |
| CN105013754A (en) * | 2015-06-24 | 2015-11-04 | 山东华光光电子有限公司 | Online chemical cleaning method for exhaust treatment system of MOCVD device |
| CN106370043A (en) * | 2016-10-31 | 2017-02-01 | 航天海鹰(哈尔滨)钛业有限公司 | Novel heat exchanger core |
| CN106403688A (en) * | 2016-10-31 | 2017-02-15 | 航天海鹰(哈尔滨)钛业有限公司 | Novel heat exchanger core |
| CN107990763A (en) * | 2017-11-10 | 2018-05-04 | 淮阴工学院 | Heat exchanger for cinder |
| CN115077267A (en) * | 2022-08-19 | 2022-09-20 | 中国核动力研究设计院 | Heat exchange member and condenser |
| CN115487516A (en) * | 2022-09-28 | 2022-12-20 | 无锡格物环保技术有限公司 | Variable-temperature evaporation device capable of evaporating viscous materials |
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| JPH0634236A (en) * | 1992-07-22 | 1994-02-08 | Mitsubishi Heavy Ind Ltd | Heat pump for sewage heat source |
| CN2833454Y (en) * | 2004-08-02 | 2006-11-01 | 于永辉 | Central heating and refrigerating device utilizing urban sewage |
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- 2007-07-20 CN CNB2007100725379A patent/CN100464137C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101221096B (en) * | 2008-01-23 | 2010-11-10 | 清华大学 | Plate type heat exchanger on-site testing system with non-clean water as heat exchange medium |
| CN102116543A (en) * | 2011-01-07 | 2011-07-06 | 王英慧 | Cold water/heat pump unit directly taking liquid containing solid impurities as cold/heat source |
| CN102116543B (en) * | 2011-01-07 | 2014-06-18 | 王英慧 | Cold water/heat pump unit directly taking liquid containing solid impurities as cold/heat source |
| CN104279759A (en) * | 2014-08-13 | 2015-01-14 | 广东万家乐燃气具有限公司 | Self-cleaning gas water heater and automatic cleaning method thereof |
| CN104896981A (en) * | 2015-05-08 | 2015-09-09 | 北京建筑大学 | Sewage heat exchange device capable of self-cleaning and inhibiting dirt |
| CN105013754A (en) * | 2015-06-24 | 2015-11-04 | 山东华光光电子有限公司 | Online chemical cleaning method for exhaust treatment system of MOCVD device |
| CN106370043A (en) * | 2016-10-31 | 2017-02-01 | 航天海鹰(哈尔滨)钛业有限公司 | Novel heat exchanger core |
| CN106403688A (en) * | 2016-10-31 | 2017-02-15 | 航天海鹰(哈尔滨)钛业有限公司 | Novel heat exchanger core |
| CN106403688B (en) * | 2016-10-31 | 2019-06-14 | 航天海鹰(哈尔滨)钛业有限公司 | A kind of heat exchanger core |
| CN107990763A (en) * | 2017-11-10 | 2018-05-04 | 淮阴工学院 | Heat exchanger for cinder |
| CN115077267A (en) * | 2022-08-19 | 2022-09-20 | 中国核动力研究设计院 | Heat exchange member and condenser |
| CN115487516A (en) * | 2022-09-28 | 2022-12-20 | 无锡格物环保技术有限公司 | Variable-temperature evaporation device capable of evaporating viscous materials |
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