CN102331087B - Safeguard structure of built-in tubular heat exchanger - Google Patents
Safeguard structure of built-in tubular heat exchanger Download PDFInfo
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- CN102331087B CN102331087B CN 201110242017 CN201110242017A CN102331087B CN 102331087 B CN102331087 B CN 102331087B CN 201110242017 CN201110242017 CN 201110242017 CN 201110242017 A CN201110242017 A CN 201110242017A CN 102331087 B CN102331087 B CN 102331087B
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- water tank
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- safeguard structure
- tube
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Abstract
The invention discloses a built-in tubular heat exchanger, and provides a safeguard structure of the built-in tubular heat exchanger, wherein the safeguard structure is simple, can prevent the heat exchanger from being corroded by water, and can guide leaked refrigerants out of a water tank when the heat exchanger once leaks, thus water is avoided from being polluted, and is used for solving the technical problems that the surface of the heat exchanger is very easy to punch because of corrosion in the prior art, the refrigerants are caused to enter water directly after leakage to cause pollution and threaten the health of users and the like. The safeguard structure comprises the water tank and the tubular heat exchanger arranged below the liquid level of the water tank, wherein the input end and the output end of the tubular heat exchanger are respectively connected with an outdoor machine passing through the water tank; an elastic anti-corrosive sleeve pipe covers the outer sleeve of the tube wall at the middle of the tubular heat exchanger; positioning pipes are respectively sleeved out of the tube wall corresponding to the input end and output end of the tubular heat exchanger; air leakage clearance is arranged between the positioning pipes and the input end or the output end of the corresponding tubular heat exchanger; and one end of the air leakage clearance is communicated with the elastic anti-corrosive sleeve pipe, and the other end of the air leakage clearance is communicated with the space at the outer side of the water tank.
Description
Technical field
The present invention relates to a kind of tube built-in heat exchanger, relate in particular to a kind of avoiding by aqueous corrosion, and when the cold-producing medium in the heat exchanger takes place to leak, the cold-producing medium that leaks can be exported to the safeguard structure of the outer tube built-in heat exchanger of water tank.
Background technology
At present air-source water heater generally is to adopt contrary Carnot cycle to absorb from air behind the heat by release heat in the water of condensate and heat exchanger in the water tank, comes water in the heating water tank with this.Condensate and heat exchanger comprises two kinds of frame modes according to the difference of placement location, a kind of is to place the inner water tank outside directly not contact with water, it is by inner water tank heat to be passed to water in the water tank, it is external, the advantage of this mode is: heat exchanger does not directly contact with water, thereby can not be corroded, and owing to the outside of heat exchanger at water tank, even heat exchanger has breakage, the cold-producing medium that leaks can not enter in the water yet and pollute, but because outer heat exchanger does not directly contact with water, heat exchanger and inner water tank contact area are little, heat transfer efficiency is low, especially after long-time the use, expand with heat and contract with cold or the influence of factor such as vibrations under, effective contact area between heat exchanger and inner water tank also can descend, cause its effective heat transfer area further to reduce, when the air-source water heater exchange capability of heat is not enough, intrasystem cold-producing medium can't condensation, system condition changes, gently then efficiency ratio descends, and power consumption increases, and heavy then compressor excessively damages because of operating pressure and temperature rising.Another kind of condensate and heat exchanger is to place in the water tank and immerse water, condensing heat exchanger directly contacts with water, namely built-in, in order to increase heat exchange area, the condensing heat exchanger of this kind structure is generally coiled, the advantage of this mode is: heat exchanger directly contacts with water, contact area is big, heat transfer efficiency is good, good stability, and its shortcoming is: because heat exchanger directly contacts with water, therefore condensing heat exchanger is very easily bored a hole because of corrosion, cause cold-producing medium to leak, the cold-producing medium of Guo Louing directly enters water and pollutes simultaneously, and the threat user's is healthy.
Chinese patent " a kind of air-source water heater (CN2679557Y) " discloses a kind of air-source water heater, it is by being connected with electric controller, in the shell of computer control panel, be installed with heater, by water pipe be connected with water tank form, also comprise fixing blower fan in the enclosure, described heater is connected with the inlet of flow controller by connector by the liquid outlet of heat collector, the liquid outlet of flow controller is connected with the inlet of heat exchanger, the liquid outlet of heat exchanger is connected with the inlet of compressor, the integral body that the one or more thermodynamic cycle loop that the liquid outlet of compressor and the inlet of heat collector connect and compose is formed, described heat collector is fixed and is made up of heat-exchanger rig by in the staving that has heat-insulation layer.Heat exchanger in this device is built-in structure, heat exchanger wherein is placed in the water tank and immerses in the water, because heat-exchanger surface directly contacts with water, therefore exist the surface very easily to bore a hole because of corrosion equally, and cause cold-producing medium to leak, the cold-producing medium of Guo Louing directly enters water and pollutes simultaneously, threatens user's problem such as healthy.
Summary of the invention
The present invention mainly provided a kind of simple in structure, can avoid heat exchanger by aqueous corrosion, and when in a single day heat exchanger takes place to leak, the cold-producing medium that leaks can be exported to outside the water tank, thereby avoid the safeguard structure of the tube built-in heat exchanger of water pollution, having solved the heat-exchanger surface that exists in the prior art very easily bores a hole because of corrosion, and causing cold-producing medium to leak, the cold-producing medium of Guo Louing directly enters water and pollutes simultaneously, threatens the technical problem of user's healthy grade.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of safeguard structure of tube built-in heat exchanger, comprise water tank and be located at pipe heat exchanger under the water tank level, the input of described pipe heat exchanger passes water tank respectively with output and links to each other with off-premises station, tube wall overcoat at described pipe heat exchanger middle part is covered with the elastic anti-corrosion sleeve pipe, outside the tube wall of described pipe heat exchanger input and output correspondence, be arranged with positioning pipe respectively, between described positioning pipe and corresponding pipe heat exchanger input or output, be provided with the gas leakage gap, one end in described gas leakage gap is connected with the elastic anti-corrosion sleeve pipe, and the other end in gas leakage gap is connected with the water tank outer space.The coil arrangement that pipe heat exchanger is normally formed by the high metal tube bending of heat exchange efficiencies such as copper pipe, by isometric elastic anti-corrosion sleeve pipe of shroud outside metal tube with the heat exchange of pipe heat exchanger zone fully ladle cover in the elastic anti-corrosion sleeve pipe, the pipe heat exchanger surface that is immersed in thus in the water can directly not contact with water, so the pipe heat exchanger surface namely can not corroded; By a sheathed positioning pipe respectively outside the pipe heat exchanger input of elastic anti-corrosion sleeve pipe two ends correspondence and output, the medial extremity of positioning pipe docks with the port of elastic anti-corrosion sleeve pipe, the outboard end of positioning pipe extends to outside the water tank after passing water tank wall, the two ends that are the elastic anti-corrosion sleeve pipe are connected with the water tank outside by positioning pipe, therefore when in a single day the surface of pipe heat exchanger occurs leaking, the cold-producing medium that spills in the pipe heat exchanger pipeline namely enters the inner chamber of elastic anti-corrosion sleeve pipe, cold-producing medium flows to the positioning pipe of both sides after the elastic anti-corrosion sleeve pipe generation strain, owing to be provided with the gap between the inner ring surface of positioning pipe and the tube wall of pipe heat exchanger input and output, the gap that carries over again when cold-producing medium flow to the positioning pipe inner port between positioning pipe and input or output tube wall flow to the water tank outside, avoided the water in the water tank to be polluted thus, guaranteed user's water safety, overall structure is simple, be skillfully constructed, cost is low.
As preferably, connecting thread outside the positioning pipe end corresponding to the water tank outside is provided with, outer connecting thread corresponding port is provided with interior chamfering, input or output end at described pipe heat exchanger are provided with horn mouth, on the chamfering, the sidewall between connecting thread and the water tank was provided with some air-vents outside in described horn mouth was connected to.Connecting thread outside arranging by the outer end at positioning pipe, the interior chamfering that the horn mouth of setting and input or output offsets on the external port, can finish the pipeline connection of system by positioning pipe, need not on the input of pipe heat exchanger or output, connector to be set separately, simplify the pipeline connection, and realized the conducting in positioning pipe internal clearance and the external world by air-vent.
Can the elastic anti-corrosion sleeve pipe be fixed on the link of positioning pipe with clip, as preferably, integral type is connected with locating ring at the outer ring surface middle part of described positioning pipe, and described locating ring is folded between the outer wall and inner bag of water tank, and is weldingly fixed on the inner bag; The medial extremity of described positioning pipe shrinks the back and forms link, is provided with some bulge loops at the outer ring surface of link, and described elastic anti-corrosion casing pipe sleeve is contained on the bulge loop.Locating ring is convenient to positioning pipe fixing on water tank, prevents positioning pipe front and back play; By the link outer ring surface at positioning pipe bulge loop is set, prevents from deviating from the self-align pipe of elastic anti-corrosion sleeve pipe, improve the reliability of device.
As preferably, scurry at the pipeline of the outboard end correspondence of described positioning pipe and to be associated with insulating joint.The pipeline of the outboard end correspondence of positioning pipe links to each other with off-premises station, by the insulating joint of connecting with the connecting line of off-premises station at water tank, make and form electric insulation between compressor in the off-premises station and evaporimeter and heat exchanger, thereby parts such as compressor, evaporimeter and water tank are kept apart, make to form electric insulation between water and possible electric leakage parts in the water tank, improved the security of air-source water heater use.
The elastic anti-corrosion sleeve pipe can be plastic tube, rubber plastic pipe etc., and as preferably, described elastic anti-corrosion sleeve pipe is silicone tube, and the wall thickness of silicone tube is 0.5 mm to 2mm.Silicone tube is extensively good rubber of a kind of extraordinary combination property, it is nonpoisonous and tasteless, electrical insulating property and resistant of high or low temperature are good, have excellent electric insulation performance, ageing-resistant performance, chemical stability, anti-oxidant weatherability, radiation hardness has the physiology inertia, good permeability, high-low temperature resistant can use at-60 ℃～250 ℃ long-term; Silicone tube adopts rational wall thickness, has also guaranteed the heat conduction efficiency of tube built-in heat exchanger when having guaranteed intensity.
As preferably, described gas leakage gap is 1mm to 3mm.Reasonably the gas leakage gap is guaranteeing also to have made things convenient for the pipeline of system to connect when cold-producing medium can flow out smoothly.
As preferably, between the outer wall of described water tank and inner bag, be folded with thermal insulation layer.Thermal insulation layer has increased the insulating power of water tank, prevents that heat scatters and disappears.
Therefore, the safeguard structure of a kind of tube built-in heat exchanger of the present invention has following advantage: the tube built-in heat exchanger is positioned at the inside of inner water tank, directly contact with water, big and the good stability of heat transfer area, the corrosion resistant silicone tube of pipeline appearance sheathing by heat exchanger, heat exchanger metal parts and water are kept apart, can avoid the heat-exchanger surface corrosion, space between heat exchanger and silicone tube and water tank exterior, when heat exchanger generation cold-producing medium leaks, cold-producing medium will be discharged into the water tank outside by the positioning pipe that is connected the silicone tube two ends, avoid the water pollution, simple in structure, be skillfully constructed; By the insulating joint of connecting with the connecting line of off-premises station at water tank, make to form electric insulation between off-premises station and heat exchanger, improved the security that air-source water heater uses.
Description of drawings:
Fig. 1 is the scheme of installation of a kind of tube built-in heat exchanger of the present invention;
Fig. 2 is the structural representation of tube built-in heat exchanger input;
Fig. 3 is the cutaway view of positioning pipe;
Fig. 4 is the connection diagram of insulating joint.
The specific embodiment:
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
As shown in Figure 1, the safeguard structure of a kind of tube built-in heat exchanger of the present invention, the water tank 1 that comprises a drum shape, water tank 1 wall is made of outer wall 11 and inner bag 12 and the thermal insulation layer 13 that is folded between the two, in the container cavity of inner bag 12 correspondences of water tank 1, there is water, a pipe heat exchanger 2 has been installed under the liquid level of water tank 1, the input 21 of pipe heat exchanger 2 and output 22 level respectively pass water tank 1 back and link to each other with off-premises station 3, as shown in Figure 2, tube wall overcoat at pipe heat exchanger 2 middle parts is covered with an elastic anti-corrosion sleeve pipe 4, elastic anti-corrosion sleeve pipe 4 is the silicone tube of 1 mm for wall thickness, outside the tube wall of pipe heat exchanger 2 inputs 21 and output 22 correspondences, be set with a positioning pipe 5, integral type is processed with a locating ring 51 at the outer ring surface middle part of positioning pipe 5, locating ring 51 is folded between the outer wall 11 and inner bag 12 of water tank 1, and locating ring 51 is fixed on inner bag 12 outside wall surface by boxing; The inner ring surface of positioning pipe 5 and pass wherein input 21 or output 22 surfaces between form the gas leakage gap 6 of 2mm distance, the medial extremity of positioning pipe 5 is processed to form a link 55, the diameter of link 55 is than the little 2mm of positioning pipe 5 body diameters, outer ring surface at link 55 has four bulge loops 56, article four, bulge loop 56 equidistantly distributes on link 55, the openend of elastic anti-corrosion sleeve pipe 4 is sleeved on the bulge loop 56, as shown in Figure 3, connecting thread 52 outside positioning pipe 5 ends corresponding to water tank 1 outside are processed with, outer connecting thread 52 corresponding port are processed with interior chamfering 53, after the input 21 of pipe heat exchanger 2 or output 22 end reamings, form horn mouth 23, the lateral surface of horn mouth 23 is connected on the interior chamfering 53, have four air-vents 54 on the sidewall between connecting thread 52 and the water tank 1 outside, air-vent 54 1 ends and gas leakage gap 6 conductings, the other end and atmosphere are conducted, and four air-vents 54 are along the circumferential direction uniform on positioning pipe 5, as shown in Figure 4, insulating joint 7 of butt on the inner face of horn mouth 23, insulating joint 7 is processed by the phenolic resins pipe, outer ring surface at insulating joint 7 is processed with screw thread, an attaching nut spins between insulating joint 7 and positioning pipe 5, horn mouth 23 is clamped between insulating joint 7 and the positioning pipe 5, by another attaching nut extended pipeline on the off-premises station 3 is docked with the other end of insulating joint 7 again.
When the present invention uses, because pipe heat exchanger 2 ladle covers are in elastic anti-corrosion sleeve pipe 2, therefore pipe heat exchanger 2 surfaces namely can not corroded, when in a single day the surface of pipe heat exchanger 2 occurs leaking, the cold-producing medium that spills in pipe heat exchanger 2 pipelines enters namely that the positioning pipe 5 to both sides flows behind the inner chamber of elastic anti-corrosion sleeve pipe 2, enters gas leakage gap 6, flow in the atmosphere in water tank 1 outside from air-vent 54 again, avoid the water in the water tank 1 to be polluted thus, guaranteed user's water safety.When the insulation of live parts such as the compressor in the off-premises station 3 or other auxiliary electrical heating is leaked electricity in case be damaged, namely can not form leakage path at off-premises station 3 and 1 in water tank, further improved the use safety of air-source water heater.
Specific embodiment described herein only is that design of the present invention is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. the safeguard structure of a tube built-in heat exchanger, comprise water tank (1) and be located at the subsurface pipe heat exchanger of water tank (1) (2), the input (21) of described pipe heat exchanger (2) passes water tank (1) respectively with output (22) and links to each other with off-premises station (3), it is characterized in that: the tube wall overcoat at described pipe heat exchanger (2) middle part is covered with elastic anti-corrosion sleeve pipe (4), outside the tube wall of described pipe heat exchanger (2) input (21) and output (22) correspondence, be arranged with positioning pipe (5) respectively, between described positioning pipe (5) and corresponding pipe heat exchanger (2) input (21) or output (22), be provided with gas leakage gap (6), one end in described gas leakage gap (6) is connected with elastic anti-corrosion sleeve pipe (4), and the other end in gas leakage gap (6) is connected with water tank (1) outer space.
2. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1, it is characterized in that: connecting thread (52) outside positioning pipe (5) end corresponding to water tank (1) outside is provided with, outer connecting thread (52) corresponding port is provided with interior chamfering (53), input (21) or output (22) end in described pipe heat exchanger (2) are provided with horn mouth (23), described horn mouth (23) is connected on the interior chamfering (53), and the sidewall between connecting thread (52) and the water tank (1) is provided with some air-vents (54) outside.
3. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1 and 2, it is characterized in that: integral type is connected with locating ring (51) at the outer ring surface middle part of described positioning pipe (5), described locating ring (51) is folded between the outer wall (11) and inner bag (12) of water tank (1), and is weldingly fixed on the inner bag (12); The medial extremity of described positioning pipe (5) shrinks the back and forms link (55), is provided with some bulge loops (56) at the outer ring surface of link (55), and described elastic anti-corrosion sleeve pipe (4) is sleeved on the bulge loop (56).
4. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1 and 2 is characterized in that: the pipeline in the outboard end correspondence of described positioning pipe (5) is in series with insulating joint (7).
5. the safeguard structure of a kind of tube built-in heat exchanger according to claim 3 is characterized in that: the pipeline in the outboard end correspondence of described positioning pipe (5) is in series with insulating joint (7).
6. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1 and 2, it is characterized in that: described elastic anti-corrosion sleeve pipe (4) is silicone tube, and the wall thickness of silicone tube is 0.5 mm to 2mm.
7. the safeguard structure of a kind of tube built-in heat exchanger according to claim 5, it is characterized in that: described elastic anti-corrosion sleeve pipe (4) is silicone tube, and the wall thickness of silicone tube is 0.5 mm to 2mm.
8. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1 and 2 is characterized in that: described gas leakage gap (6) is 1mm to 3mm.
9. the safeguard structure of a kind of tube built-in heat exchanger according to claim 7 is characterized in that: described gas leakage gap (6) is 1mm to 3mm.
10. the safeguard structure of a kind of tube built-in heat exchanger according to claim 1 and 2 is characterized in that: be folded with thermal insulation layer (13) between the outer wall (11) of described water tank (1) and inner bag (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110242017 CN102331087B (en) | 2011-08-23 | 2011-08-23 | Safeguard structure of built-in tubular heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110242017 CN102331087B (en) | 2011-08-23 | 2011-08-23 | Safeguard structure of built-in tubular heat exchanger |
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| Publication Number | Publication Date |
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| CN102331087A CN102331087A (en) | 2012-01-25 |
| CN102331087B true CN102331087B (en) | 2013-08-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106969491A (en) * | 2017-05-26 | 2017-07-21 | 艾欧史密斯(中国)热水器有限公司 | Gas-fired water heater |
| CN110779358B (en) * | 2019-08-19 | 2022-04-08 | 四川奥格莱能源科技有限公司 | Loading and unloading type protection device for built-in tube type heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2903141B2 (en) * | 1995-07-14 | 1999-06-07 | 東京瓦斯株式会社 | Water leak detection device of heat exchange device |
| CN2527917Y (en) * | 2002-03-22 | 2002-12-25 | 佛山市确正冷热设备有限公司 | Safety heat pump water heater |
| CN101392958A (en) * | 2008-11-07 | 2009-03-25 | 武汉康辰节能环保投资有限公司 | Air source heat pump boiler |
| CN202229406U (en) * | 2011-08-23 | 2012-05-23 | 黄山市广远光电科技有限公司 | Protective structure for internal tubular heat exchanger |
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