CN201003913Y - Dirty prevention heat exchanger - Google Patents

Abstract

The utility model relates to a fouling prevention type heat exchanger, which is arranged on a heat supply pipe network and contains two joining boxes which are positioned at the two ends of the heat exchanger, wherein the joining boxes are fixed with a hot air inlet and a hot air outlet as well a tap water inlet and a tap water outlet; while the joining boxes at the upper and lower ends are connected with a plurality of tap water heat suction pipes, wherein a tap water suction pipe is provided with a heat supply pipe inside; and the hot air inlet and the hot air outlet are respectively communicated with the joining boxes, while the two joining boxes are communicated through the heat supply pipe; and the tap water inlet and the tap water outlet are respectively communicated with a tap water heat suction pipe, wherein the tap water suction heat supply pipes are communicated through a tap water communication pipe. The tap water heat supply pipe of the utility model is not easy to form the fouling, if so, the fouling can not block the pipe or can be eliminated by acid washing. The utility model saves the heat suction copper pipes of the original products and reduces the manufacture cost as well; in addition, the cold fluid hollow cavity is large, and the flow course is short and smooth and not easy to form fouling so as to block the pipes; and the fouling is transferred to the outer wall face of the heat supply pipe. The utility model can be rinsed with acid and has a long service life, a large heat exchange quantity and a high efficiency.

Description

Antiscaling heat exchanger

Technical field

The utility model relates to a kind of heating exchanger of installing and using heating heat-exchange on heating network, but relates in particular to a kind of antiscaling heat exchanger of antiscale.

Background technology

But but the applicant is for the heat exchanger that is installed on the heating network not only heating but also heat exchange bathing, apply for a plurality of patents and obtained patent right, present patent application is the inventive improvements of carrying out on the basis of original patent, compare the difference with essence with former patent, the former patent relevant with the utility model is as follows:

The patent No. is 98220257.1, the utility model name is called the patent of " heating shower heat exchanger ", the heat exchanger that relates to a kind of shower that is used to warm oneself, it is by left water tank, right water tank, the communicating pipe of water tank, insert the elbow of the endothermic tube connection endothermic tube in communicating pipe, seal the lid of left and right sides water tank lower port, seal left and right sides water tank upper port have endothermic tube top tube head and terminal tube head stretches out the lid in hole, the screw of the installation vent valve of left side water tank upper, hot water inlet pipe's joint on the right water tank upper wall and the hot water backwater's pipe joint on the tube wall of bottom constitute, it is installed on the heating pipeline, heating is opened running water and just can be provided hot water when having a bath at ordinary times.Its principal claim is that " 1; a kind of heating shower heat exchanger; it comprises the hot water inlet pipe's pipe joint (10) that is connected with heat supplying pipeline; hot water return pipe pipe joint (12); it is characterized in that: it also comprises upright left water tank (3); right water tank (11), be communicated with left water tank (3), the cross connection pipe (7) of right water tank (11), insert the endothermic tube (14) in communicating pipe (7), zigzag weld is connected on the union elbow (2) that is communicated with endothermic tube (14) on endothermic tube (14) tube head, seal left water tank (3), the lid (1 of right water tank (11) end mouth, 13), the screw of the installation vent valve on water tank (3) upper end wall of a left side, seal left water tank (3) lid (5) suitable for reading, lid having on (5) upwards bending endothermic tube top section tube head (6) stretch out the hole, become whole by welding with lid (6), seal right water tank (11) lid (9) suitable for reading, lid having on (9) upwards bending endothermic tube latter end tube head (8) stretch out the hole, become integral body by welding with lid (9).”

The patent No. is 200320106748.7, the utility model name is called the patent of " heat dissipation heat exchanger ", discloses a kind of heat dissipation heat exchanger, installs and uses on heat supplying pipeline.Comprise: two headers and a plurality of communicating pipes that are communicated with header, design has heating installation water inlet and belching backwater mouth on the header, and design has exhaust valve port; Design has the heat absorption coil pipe in part communicating pipe.The cold water inlet of heat absorption coil pipe and hot water outlet design are on header.Communicating pipe can vertically be provided with or horizontally set, and communicating pipe is single or double, and the heat absorption coil pipe is once coiling or secondary coiling in communicating pipe.The heat absorption coil pipe is whole plug-in type or is the split insertion formula structure that is tightly connected.Insert the absorbing heat disk pipe in part communicating pipe, purpose is to obtain hydro-thermal water from the beginning in order to carry out heat exchange, and another part communicating pipe dispels the heat as heating installation.This utility model unites two into one radiator and heat exchanger, and it is little to take up room, and is designed to communicating pipe when double, can increase the heating installation area of dissipation and institute takes up space lessly, and the length that can prolong the heat absorption coil pipe again increases the temperature of running water.Its principal claim be " 1, a kind of heat dissipation heat exchanger; comprising: header (3,8); the communicating pipe (6) that is communicated with header (3,8) that design has heating installation water inlet (5) and the belching backwater mouth (7) that is connected with heat supplying pipeline on the header, designing on the header has exhaust valve port (2); It is characterized in that: design has heat absorption coil pipe (4) in part communicating pipe, and the cold water inlet (1) of heat absorption coil pipe (4) and hot water outlet (9) design are on header.”

The patent No. is 200420040492.9, the utility model name is called the patent of " heating shower heat exchanger ", a kind of heating shower heat exchanger is disclosed, its principal claim is: " 1, heating shower heat exchanger; it has communicating pipe (3); insert endothermic tube (4) in communicating pipe (3); it is characterized in that: connector (8) was installed between two communicating pipes; at least one end mounting plate of communicating pipe (3) (1); endothermic tube (4) forms during communicating pipe (3) and circulates and be connected with fixed head (1), communicating pipe (3) at least one end offer groove (10).”

The patent No. is 200520082097.1, the utility model name is called the patent of " close packed tube counterflow heat exchanger ", discloses a kind of close packed tube counterflow heat exchanger, can warm oneself and can obtain bath hot water by heat exchange.Comprise heat supply import, heat supply outlet, cooling water inlet, hot water outlet and the heating tube more than two; Heating tube is flat tube, pipe or elliptical tube.One end staggered designs of two adjacent heating tubes has opening, makes adjacent two heating tube conductings; Be inserted with endothermic tube in the heating tube; The two ends of heating tube seal by closure plate.Cooling water inlet and hot water outlet are communicated with the two ends of endothermic tube respectively; Heat supply import and heating tube, opening, heat supply export mixes heating hot water directed flow passage, cooling water inlet and endothermic tube, hot water outlet constitute bathing water directed flow passage, bathing water directed flow passage is opposite generally with heating hot water directed flow channel direction, constitutes the counter-flow heat exchange structure.This utility model is bigger than other heat exchange mode heat transfer MTDs, bath hot water leaving water temperature height, and can save 1/3 heat absorption copper pipe, and two headers about having saved, and saves cost.Its principal claim be " 1, a kind of close packed tube counterflow heat exchanger, comprise heat supply import (7), heat supply outlet (8), cooling water inlet (1) and hot water outlet (4), it is characterized in that: comprise the heating tube (5) more than two and two; One end staggered designs of two adjacent heating tubes (5) has opening (3), makes adjacent two heating tubes (5) conducting; Be inserted with endothermic tube (6) in the heating tube (5); The two ends of heating tube (5) are by closure plate (2) sealing; Cooling water inlet (1) and hot water outlet (4) are communicated with the two ends of endothermic tube (6) respectively; Heat supply import (7) constitutes heating hot water directed flow passage with heating tube (5), opening (3), heat supply outlet (8), cooling water inlet (1) constitutes bathing water directed flow passage with endothermic tube (6), hot water outlet (4), bathing water directed flow passage is opposite generally with heating hot water directed flow channel direction, constitutes the counter-flow heat exchange structure.”

The patent No. is 200520084400.1, the utility model name is called the patent of " water isolation type heat exchanger ", discloses a kind of water isolation type heat exchanger, installs and uses on the heating supply pipeline, obtains hot water bathing by heat exchange.Comprise: housing is equipped with thermal medium import, thermal medium outlet, cooling water inlet and hot water outlet on the housing.Design has the water proof lining in the housing, and the water proof lining is divided into water proof lining and two kinds of structures of water proof liner plate.The water proof lining is separated into thermal medium import Heat Room and thermal medium outlet Heat Room with the space in the housing, and two Heat Rooms are what communicate.Designing respectively in thermal medium import Heat Room and the thermal medium outlet Heat Room has endothermic tube, and the endothermic tube in two Heat Rooms is what be communicated with.The two ends of endothermic tube are connected with cooling water inlet and hot water outlet respectively.The thermal medium import is connected with thermal medium import Heat Room, and the thermal medium outlet is connected with thermal medium outlet Heat Room.This utility model constitutes the counter-flow heat exchange structure, and bigger than other heat exchange mode heat transfer MTDs, thermograde reduces soon, good effect of heat exchange, and the bath hot water leaving water temperature is high and can save endothermic tube.Its principal claim is: " 1, a kind of water isolation type heat exchanger, comprising: housing (1) is equipped with the outlet of thermal medium import (9), thermal medium (4), cooling water inlet (6) and hot water outlet (8) on the housing (1); It is characterized in that: design has the water proof lining in the housing (1), and the water proof lining is separated into thermal medium import Heat Room (7) and thermal medium outlet Heat Room (5) with the space in the housing (1); Thermal medium import Heat Room (7) and thermal medium outlet Heat Room (5) communicate; Designing respectively in thermal medium import Heat Room (7) and the thermal medium outlet Heat Room (5) has endothermic tube (3), and the endothermic tube (3) in two Heat Rooms is what be communicated with; The two ends of endothermic tube (3) are connected with described cooling water inlet (6) and hot water outlet (8) respectively; Described thermal medium import (9) is connected with thermal medium import Heat Room (7), and described thermal medium outlet (4) is connected with thermal medium outlet Heat Room (5).”

The serial heating exchanger patented product of the applicant's invention goes on the market for many years, but serial heating exchanger patented product in use also finds to exist bigger defective and deficiency gradually.

Thermal medium is by housing tube chamber channel cycle in the former patented product, design has thinner heat absorption copper tube in the housing tube chamber passage, is flowing cold running water formation circulation in the copper pipe and is being heated to form hot water, lives required for people, have a bath, do washing, scrub conveniently, improve people's quality of life.Because heating source imbalance, be divided into top section and end segment heating pipe network, the design difference of pipe network, press Lou Changshe pipe laying flatly, meet the stairway unit opening, a perpendicular feed pipe is conducted to high level (6 floors building), establish horizontal pipe network by the room and form series connection heating pipe network by last confession next time, cause more than 3 layers heating effect good, below 3 layers because the heat radiation heat loss of the above radiator of floor, 10～15 ℃ of heating temperature reductions.

The present heating pipe network of installing, the only family circulation heating systems of system that adopt that Every household has an ammeter more, establish pipe laying flatly by building length, be divided into initial end segment, meet the stairway unit perpendicular two upright return pipes that supply to the building high level, every layer is met the family to open for the backwater mouth of pipe, causes 1～3 layer of heating effect good, owing to flow and difference pressuring loss, cause heating effect to differ from 10～20 ℃ more than 3 layers.

Heat exchanger producer is balance heat exchange output hot water continuously, and the heat absorption copper pipe is reduced to Φ 6-8mm (copper material rise in price factor, the more little heat-transfer effect of the pipe diameter of heating surface is good more, the long more heat exchange efficiency of flow process is high more) by Φ 10mm in the design.Length is between 15～25m, the counter-flow heat exchanger copper pipe is long also between 12～15m, because the heat absorption copper pipe is long meticulous, the U type is curved too many, manufacture craft all is two kinds on U type or spirals, insert in the heating agent tube chamber, producer only considers a large amount of hot water that swap out, and has but ignored the existence that this problem is stopped up in interior endothermic tube fouling.The user purchases a heat exchanger for about 500～1000 yuan, uses 2～5 heating phases, and interior endothermic tube just blocks, or can not produce hot water, can not clean maybe and can't dredge behind the formation incrustation scale in the interior endothermic tube, and this is a significant deficiency.

The hazardous material of incrustation scale comprises suspension in the water, colloid thing, dissolved matter etc.Domestic water is a hard water, the water hardness (H) is generally 7～10 equivalent parts per millions, water is heated to more than 70 ℃, and the U.S. ion of calcium just forms incrustation scale in the water, and incrustation scale is adsorbed on the inner wall of metal tube face, absorption 1mm incrustation scale, caliber dwindles 2mm, pit corrosion metal surface, the conduction of influence heat, stop up cavity, waste energy.

With regard to heat dissipation heat exchanger 200320106748.7 patents, there are deficiency or significant deficiency, the heat absorption long 17.48m of copper pipe Φ 8.5mm (flow process of cold fluid) heat absorption surface is: 0.4665412m ²(1) through the acid washing test method, long because of the inner core copper pipe, the meticulous bending place of cavity is too many again, import and export again on a horizontal end face, no drop and reaction cavity and cavity are narrow, manually pour into acid solution outside spray reaction of moment foam liquid, afterwards reactant is given very little passage and is blocked, and acid solution can't pour into can not pickling, and the heat absorption copper pipe is scrapped.

(2) shell dissection facture is analysed the extraction endothermic tube to shell and straightening is cut into pieces, and also gently beats with the oxygen welding fire is roasting, and its part incrustation scale comes off, and with neutralizing with buck after the pickling, is welded into integral body more piecemeal again.Entire process process expense is too high, and the life-span weakens, and therefore dissects facture and is not accepted, can only change the inner core endothermic tube, the user draws out a very big expense again using 2～5 heating phases like this, use cost increases, and causes raw-material waste, and the product life cycle is short.

Summary of the invention

The purpose of this utility model provides and is difficult for forming that incrustation scale, fouling are difficult for stopping up or can pickling remove the antiscaling heat exchanger of incrustation scale in a kind of running water endothermic tube.

Do not form incrustation scale in the endothermic tube in order to solve, fouling is not stopped up, maybe can be cleaned this technical barrier.The applicant is bold in innovation, and when guaranteeing heat exchange, radiating effect, through repetition test, draws and has only the cold fluid of shortening cavity passage length, increases cold fluid pipe cavity, and incrustation scale absorption is shifted, and cold fluid pass is unimpeded, just is convenient to irritate sour cleaning treatment incrustation scale.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of antiscaling heat exchanger comprises: be positioned at the up and down header at two ends or two ends, the left and right sides of heat exchanger, be fixedly connected with heating installation import, heating outlet and running water inlet, running water outlet on the header respectively; It is characterized in that: be connected with a plurality of running water endothermic tubes between the header at described two ends up and down or two ends, the left and right sides, be provided with heating tube in the running water endothermic tube; Heating installation import, heating outlet and header UNICOM pass through heating tube UNICOM between two headers; The outlet of described running water inlet and running water respectively with a running water endothermic tube UNICOM, between the running water endothermic tube by running water cross over pipe UNICOM.

According to described antiscaling heat exchanger, it is characterized in that: the two ends of described running water endothermic tube are fixedly connected with the water blockoff plate, have installing hole on the water blockoff plate, heating tube be fixed in the running water endothermic tube, and with the running water shutoff in the running water endothermic tube, outside the heating tube.

According to described antiscaling heat exchanger, it is characterized in that: described running water cross over pipe is staggered in header in both sides, running water endothermic tube front and back.

Be difficult for forming incrustation scale in the running water endothermic tube in the utility model, also be difficult for obstruction or can pickling remove incrustation scale as fouling.The utility model has been saved the heat absorption copper pipe in original patent, has saved raw material, low cost of manufacture.The cold fluid cavity is big, flow process weak point, unimpeded, less scaling obstruction, and incrustation scale absorption is transferred on the heating tube outside wall surface.The running water endothermic tube can clean with acid, and the product life cycle is long, and the heat exchange amount is big, and the efficient height belongs to renewal product.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a disassemblying structure schematic diagram of the present utility model.

Fig. 3 is staggered in header at the another kind of embodiment disassemblying structure schematic diagram of both sides, running water endothermic tube front and back for running water cross over pipe in the utility model.

Fig. 4 be in the utility model running water inlet and running water outlet design at a kind of example structure schematic diagram of upper end.

Fig. 5 is transversely arranged a kind of example structure schematic diagram for running water endothermic tube in the utility model.

In the accompanying drawing: 1, heating installation import; 2, header; 3, running water cross over pipe; 4, running water outlet; 5, running water cross over pipe; 6, header; 7, running water inlet; 8, heating outlet; 9, running water endothermic tube; 10, heating tube; 11, water blockoff plate.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

The utility model comprises as shown in Figure 1: be positioned at the header 2 of heat exchanger upper end and the header 6 of lower end, be fixedly connected with heating installation import 1, heating outlet 8 and running water inlet 7, running water outlet 4 on header 2 and the header 6 respectively; It is characterized in that: be connected with a plurality of running water endothermic tubes 9 (in addition referring to Fig. 2) up and down between header at two ends (2) and the header (6), be provided with heating tube 10 (in addition referring to Fig. 2) in the running water endothermic tube 9; Heating installation import 1, heating outlet 8 and header 2, header 6 UNICOMs pass through heating tube 10 UNICOMs between two headers 2, the header 6.Running water inlet 7 and running water outlet 4 respectively with a running water endothermic tube 9 UNICOMs, the upper end is by running water cross over pipe 3 UNICOMs between the running water endothermic tube 9, the lower end is by running water cross over pipe 5 UNICOMs (in addition referring to Fig. 2).

As shown in Figure 1 and Figure 2, the two ends of running water endothermic tube 9 are fixedly connected with water blockoff plate 11, have installing hole on the water blockoff plate 11, heating tube 10 is fixed in the running water endothermic tube 9, and with the running water shutoff in running water endothermic tube 9, outside the heating tube 10.

Running water cross over pipe in the utility model in header, be staggered before and after running water endothermic tube both sides a kind of embodiment as shown in Figure 3, running water cross over pipe 3, running water cross over pipe 5 are staggered in header 2, header 6 in both sides, running water endothermic tube 9 front and back.The purpose of this arrangement is to be convenient to the cold and hot even heat-shift of heat exchanger, and cross over pipe do not block the mouth of pipe of heating tube, does not influence the heating installation hot water flow, reduces resistance.

Structural representation shown in Figure 4 be in the utility model running water inlet and running water outlet design at a kind of embodiment of upper end.

Structural representation shown in Figure 5 is that the running water endothermic tube is transversely arranged a kind of embodiment in the utility model.

As shown in Figure 1 and Figure 2, the heating installation hot water of heat supply heating installation pipe network entered the header 2 on top from heating installation import 1 when the utility model used, and flow to the header 6 of lower end then from a plurality of heating tubes 10, flowed back to heat supply heating installation pipe network from heating outlet 8 then.Cold running water flows into running water endothermic tube 9 from running water inlet 7, flow into another running water endothermic tube 9 by running water cross over pipe 3 then, flow to another running water endothermic tube 9 by running water cross over pipe 5 again, at last the running water hot water that flows out after heat exchange is absorbed heat from running water outlet 4.In the utility model, running water endothermic tube and running water cross over pipe integral body can be the U type and are communicated with.

A plurality of running water endothermic tubes 9 in the utility model can be designed to double, and running water endothermic tube 9 can also can be rectangular tube (flat tube) for pipe.Heating installation import in the utility model, heating outlet, running water inlet, running water outlet can be fixedly mounted on the diverse location of heat exchanger as required, and interchangeable.

The utility model can select for use stainless steel material to make.

The utility model running water endothermic tube (display pipe) cavity is cold fluid pass Φ 51mm, the long 935mm of heating tube Φ 25mm, insert in the Φ 51mm cold fluid pass, stainless steel tube length overall 8.14m (7.44m+ cold fluid communicating pipe 0.7m), generating surface is 0.5866776m ²Replace 50 yuan of the two price differences of 17.48m copper tube (Φ 8.5mm wall thickness 0.6mm) in first patented product with the 8.14m stainless steel tube, saved material, shortened the cold flow journey, cold fluid (running water) enters under flow regime in the big cavity of Φ 51mm can never form incrustation scale.(through test, the open fully only 3 minutes display pipes of flow valve all cool off, so do not form incrustation scale).Cold fluid is identical with the heating water temperature under static state, boiler heating supply water temperature standard is 95 ℃, 75 ℃ of return water temperatures (though the utility model display pipe molten be cold water, same heat radiation heating when not exchanging hot water for), form incrustation scale probably, but the utility model has been taked incrustation scale absorption transfer measure, and calcium ions and magnesium ions adsorbs under high-temperature and transfers on the heating tube outer wall in the water, does not stop up cold fluid pass.Therefore cold fluid pass is unblocked.Even if formed micro-incrustation scale, cold fluid flow process passage is short, cavity is big, manually irritates acid and is convenient to clean, and perhaps is placed directly in the sour pond and soaks scale removal.

The utility model has been adjusted high-rise building and lower building heating gap and heat exchange effect, can store 5 kilograms running water hot water in a plurality of running water endothermic tubes in the utility model, lean on the storage of hot water energy during bathing, the water temperature that stores water is up to 70 ℃, can convert 1/3 cold water during bathing, the bathing water temperature is about 42 ℃, and available cold and hot mixing valve is adjusted water temperature, flow, the successive output of bath hot water.

The utility model can be made like this, with 8 sections of long 930mm stainless steel tubes of Φ 51mm as the running water endothermic tube, 3mm stretching orifice plate is inserted at two ends, and in the two ends pipe, inlay the water blockoff plate and be tightly connected, then 8 sections of long 935mm stainless steel tubes of Φ 25mm are inserted in the water proof plate hole as heating tube, two ends is tightly connected.With after being communicated with pipe U-shaped communicating method the cold fluid pipe being communicated with the water pressure test, with header sealing both ends portion test products.The test products specification is 1000 (length) * 61 (thick) * 500 (height) mm, and the cold fluid capacity is 5 kilograms.800 (length) * 61 (thick) * 500 (height) mm, the cold fluid capacity is 3.5 kilograms.

The utility model has been saved the heat absorption copper pipe in the former patent, has saved raw material, low cost of manufacture, and the cold fluid cavity is big, flow process weak point, unimpeded, less scaling obstruction, incrustation scale absorption is transferred on the heating tube outside wall surface.The running water endothermic tube can clean with acid, and the product life cycle is long, and the heat exchange amount is big, and the efficient height belongs to renewal product.

Claims (3)

1, a kind of antiscaling heat exchanger, comprise: be positioned at heat exchanger up and down header (2) and the header (6) at two ends or two ends, the left and right sides, be fixedly connected with heating installation import (1), heating outlet (8) and running water inlet (7) on header (2) and the header (6) respectively, running water exports (4); It is characterized in that: be connected with a plurality of running water endothermic tubes (9) between the header (2) at described two ends up and down or two ends, the left and right sides and the header (6), be provided with heating tube (10) in the running water endothermic tube (9); Heating installation import (1), heating outlet (8) and header (2), header (6) UNICOM pass through heating tube (10) UNICOM between two headers (2), the header (6); Described running water inlet (7) and running water outlet (4) respectively with running water endothermic tube (a 9) UNICOM, between the running water endothermic tube (9) by running water cross over pipe (3), running water cross over pipe (5) UNICOM.

2, antiscaling heat exchanger according to claim 1, it is characterized in that: the two ends of described running water endothermic tube (9) are fixedly connected with water blockoff plate (11), the water blockoff plate has installing hole on (11), heating tube (10) is fixed in the running water endothermic tube (9), and with the running water shutoff in running water endothermic tube (9), outside the heating tube (10).

3, antiscaling heat exchanger according to claim 1 is characterized in that: described running water cross over pipe (3), running water cross over pipe (5) are staggered in header (2), header (6) in both sides, running water endothermic tube (9) front and back.

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