CN201697337U - Liquid pipeline internal anti-freezer - Google Patents

Abstract

The utility model relates to a liquid pipeline internal anti-freezer, which comprises an isolation transformation circuit, a heating body, an automatic protection circuit and a waterproof component. The heating body is inserted inside a liquid pipeline, the automatic protection circuit is serially connected with the heating body and then connected with a timing power supply through the isolation transformation circuit, a temperature control meter is connected with the input end of the heating body, and the heating body and the liquid pipeline are sealed through the waterproof component; and the heating body is an electric heating wire, the length of the electric heating wire is equivalent to the length of the liquid pipeline requiring freeze protection, and waterproof material is arranged on the outer surface of the heating body. The liquid pipeline internal anti-freezer can effectively prevent the pipeline from being frozen in North China in a cold season, and has the advantages of simple operation, low cost, convenient maintenance and distinct electricity-saving effect.

Description

The inner defroster of liquid line

Technical field

The utility model relates to a kind of pipeline defroster, is the inner defroster of a kind of liquid line specifically.

Background technology

At north cold area, the antifreeze problem of water pipelines such as well water, running water, solar water heater never has new breakthrough technically, still adopts traditional mode, promptly wraps up in one deck insulation material and adds a ribbon heater.

This conventional method is all reliable in the quality of all material, can satisfy antifreeze requirement reluctantly under the situation of workmen's qualification and working specification, but situation poor for quality of materials, the construction quality difference, can't guarantee the antifreezing effect of water pipeline, in case supply channel freezes, all possibly can't thaw whole winter.As everyone knows, the expansion rate that water is become ice is about 10%, expansion after which kind of tubing freezes all is easy to break, and at least also can reduce the service life of pipe, and this also is one of the reason that all will overhaul well water, tap water pipe line operating position in many areas annual beginning of springs.

The greatest problem that products such as solar water heater run at northern area also is antifreeze, the problem of thawing of pipeline.As: be subjected to the influence of building structure, heat-insulation layer and ribbon heater have all that expanding with heat and contract with cold of the dead angle that can't arrive, tubing itself brings that ribbon heater damage and heat-insulation layer and pipeline disconnect, the instability of ribbon heater quality and construction quality and method of operating lack of standardization etc., all might cause pipelines of solar water heater to freeze, can't water outlet.

It is conflicting with power department safety utilization of electric power regulations that another problem just is to use the ribbon heater to thaw, tens solar water heaters of a roof, each all has 220 volts of electric wires that are used to thaw to move the roof in different ways to, outside some electric wire is exposed to, wind, Exposure to Sunlight throughout the year, drench with rain, in case the insulating materials tracking contacts with the iron wire of solar water heater, fixed solar water heater, with go upstairs personnel's safety of serious threat.

The ribbon heater that solar water heater uses belongs to from limitting warm type, switches on to reach limit temperature scale standard in back tens minutes, and generally be the 65-75 degree.The embodiment of this natural law of expanding with heat and contract with cold on the ribbon heater is very outstanding.

When the temperature of ribbon heater when the subzero 65-75 of being climbed to spends, the coefficient of thermal expansion and contraction of plain conductor and ambroin is different, generally the plastics coefficient of thermal expansion and contraction is big comparatively speaking, the metal coefficient of thermal expansion and contraction is little, if the ribbon heater size is long, the plain conductor of both sides can the bursting insulation expose out, if the size that the ribbon heater is used is short, metal wire then can eject from terminals or cecum.In addition, also there is the phenomenon of expanding with heat and contract with cold in pipelines of solar water heater, and the ribbon heater is fixed on the water pipe, be subjected to the influence of water pipe also to have the exposed phenomenon of plain conductor, if intake in the heat-insulation layer or make moist then very easily short circuit this moment, and insulation material is inflammable thing mostly, will stay disaster hidden-trouble.

Traditional electrical torrid zone power is 25w/m (watt/meter) when 10 ℃ of environment temperatures, more powerful in the time of 0 ℃, with antifreeze 5 meters length, control mode is that time switch is an example, 25w*5m=125w, each work 10 minutes, stopped 50 minutes, 24 hours every days work 24 times totally 240 minutes, 150 days winter is power consumption 75 degree at least.

Also have a kind of carbon fiber Low-temp. electrothermal band, adopt long-term step mode work, according to test, an electricity consumption in winter reaches more than 400 degree, and its price and use cost are too high.

At present, can satisfy the inner defroster of the low pipeline of antifreeze requirement of liquid line and power consumption in the prior art does not appear in the newspapers.

The utility model content

Effectively do not solve this antifreeze technical barrier of liquid line at prior art, the utility model provides a kind of good freezing protection effect, the inner defroster of pipeline simple in structure.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:

The inner defroster of a kind of liquid line of the utility model; comprise and isolate transforming circuit, calandria, automatic protection circuit and water repellent component; described calandria is inserted in liquid line inside; automatic protection circuit and calandria are connected in series and are connected to Timing power supply after isolate transforming circuit; the input of calandria is connected to temp controlled meter, seals by water repellent component between calandria and the liquid line.

Described calandria is a heating wire, and its length is suitable with liquid line length that need be antifreeze, and the outer surface of calandria is provided with waterproof material.

Described water repellent component comprises ceramics, waterproof pad or waterproof clay and clamping nut, wherein waterproof pad or waterproof clay are held between two ceramics, the calandria end is placed through in the middle of waterproof pad or waterproof clay and two ceramics, through the clamping nut close installation on the male thread accessory of liquid line.

Described automatic protection circuit is a resettable fuse.

Described isolation transforming circuit adopts E type isolating transformer, and secondary voltage is 12V, 24V or 36V.

Described Timing power supply is timer or the temperature control instrument with the civil power addition.

Described liquid line is water pipe or oil pipe.

The utlity model has following beneficial effect:

1. pipeline good freezing protection effect.The calandria that adopts the utility model to insert equivalent length in pipeline intermittently heats, there is not antifreeze dead angle, in the canopy, anxious corner and the not enough part of pipeline buried depth etc. can both touch, this built-in mode can guarantee effectively that pipeline does not freeze in the north cold season.

2. simple to operate.The workmen is when installing the utility model, do not need high-pressure section (220V) is carried out any operation, low-pressure section (12V, 24V or 36V) only needs the pressure line terminal of two lead-in wire insertion isolating transformers of heating wire can be compressed automatically, need not professional's operation, thereby avoid not having the suspicion of card operation.

3. with low cost, easy to maintenance.The utility model is compared with using the traditional electrical torrid zone, price is low, can design the product of different class when practical application selects for the user, can change all parts that comprise isolating transformer extremely easily, particularly avoid the maintenance upstairs of ice and snow sky, improve the labor safety coefficient, installation procedure reduces, and has made things convenient for maintenance.

4. power savings is remarkable.Because the utility model is that built-in mode is installed in the pipeline, heating is fast, and heat radiation is slow, compares with using traditional ribbon heater, has greatly reduced power consumption, and power savings is obvious.According to experiment, when the inner defroster power of pipeline is 5w/ rice, work and just can guarantee that internal diameter was 12mm in 5 minutes, every meter pipeline of depositing 113 gram water, insulation material is the foaming of fourth eyeball, and thickness 27mm condition was not frozen in next hour, so 5 meters=25w of 5w/ rice *, every day, work was 2 hours altogether, power consumption in 150 days winters 7.5 degree.When every meter power is reduced to 2.5w, prolong the working time of defroster, can guarantee that equally pipeline does not freeze, therefore, it is antifreeze to adopt multiple different operating mode to carry out, and the scope of application is more extensive.

5. safe, practical, be easy to promote.The utility model can be installed on well water pipe, running water pipe, new, the old solar water heater in the liquid lines such as lower pipeline, oil pipe easily, can be with the supporting use of most of solar water heater meter specially of existing market circulation, can be with the supporting installation of market hot-water heating pipe fitting, be easy to be accepted by vast solar water heater dealer and solar water heater user, therefore the high-tension electricity of personal safety appears injuring in the regulation that meets the relevant safety utilization of electric power management rules of power department fully, roof, roofing never again.

Description of drawings

Fig. 1 is the utility model circuit structure diagram;

Fig. 2 is a water repellent component structural representation in the utility model;

Fig. 3 is a solar water pipe schematic diagram in the utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

The electrical structure of the inner defroster of the utility model liquid line as shown in Figure 1; comprise and isolate transforming circuit, calandria, automatic protection circuit and water repellent component; described calandria is inserted in liquid line inside; automatic protection circuit and calandria are connected in series and are connected to power supply after isolate transforming circuit, and the outer joint face of calandria is provided with water repellent component.

Automatic protection circuit adopts resettable fuse in the present embodiment; isolate transforming circuit and adopt E type isolating transformer; its secondary voltage can be safe voltages such as 12V, 24V or 36V; can establish earth leakage protective device according to control mode between E type isolating transformer and the civil power, entire circuit is had the earth leakage protective effect.The inside of E type isolating transformer is provided with the high temperature protection element, and when the temperature rise of E type isolating transformer reaches set point of temperature, when spending as 40～50, the high temperature protection element can start, and the power supply of the E type isolating transformer that breaks protects it at high temperature not work, and increases the service life.

Calandria is the core parts of the inner defroster of pipeline, adopts nichrome to make, diameter 0.8-1.0mm, and different its resistances of length are also different according to using, but heating temp is limited between 30-80 ℃.Calandria external application Teflon insulation, it is high temperature resistant 260 ℃.Guarantee service life.

As shown in Figure 2, water repellent component in the inner defroster of the utility model liquid line comprises two circular ceramics 1,3, waterproof pad or waterproof clay 2 and clamping nut 4, wherein waterproof pad or waterproof clay 2 are held on two circular ceramics 1, between 3, the calandria end is by waterproof pad or waterproof clay 2 and two circular ceramics 1,3 middle parts after stacking place out, again by clamping nut 4 close installation on the male thread accessory 6 of liquid line, clamping nut 4 and male thread accessory 6 are tightened, can compress waterproof pad or waterproof clay 2, reach the purpose of waterproof.

In the present embodiment, the diameter of ceramics is 18mm in the water repellent component, and thickness is 2mm, and distance center 2.5mm place is arranged with 2 1.2mm through wires holes; The thickness of waterproof pad or waterproof clay 2 is 3-5mm; Clamping nut 4 is a copper, and diameter is 20mm, length 20mm.

As shown in Figure 3, it be example that present embodiment needs antifreeze water lines with solar water heater, and during last water, running water is injected in the water tank 7 of solar water heater by upper and lower water lines 8; During following water, the water that has heated flows to delivery port by upper and lower water lines 8.

The inner defroster of the utility model liquid line be applied to solar water heater on, in the drainage pipeline 8, during installation, need be last, (caliber is internal diameter 12mm to drainage pipeline 8, external diameter 16mm) adds a tee pipe fitting on, the calandria of the inner defroster of a liquid line mouth from threeway is inserted, need antifreeze position in the drainage pipeline 8, promptly last, the inside of drainage pipeline 8 places one with last, drainage pipeline 8 needs the antifreeze suitable calandria 5 of span access location length, one end of calandria 5 extends to solar water container 7 with last, drainage pipeline 8 junctions, the other end is drawn through water repellent component, be connected in the electric cabinet 10, be connected to power supply through isolating transformer.The spring terminal is adopted in the secondary output of isolating transformer in the present embodiment, and resettable fuse is connected on inside, and during wiring, two lead-in wires of calandria are inserted pressure line terminals can be compressed automatically.

During use, at first the calandria (5 watts/meter) with the inner defroster of pipeline is installed on the antifreeze liquid line inside of need;

Connect electric wiring, errorless on inspection after, start the temperature control control device, calandria is powered on, beginning is heating intermittently.

In the present embodiment, temperature control equipment is the temp controlled meter in the solar water heater, and by the duty of the inner defroster of this temp controlled meter control piper, the inner defroster of pipeline substitutes ribbon heater in the past.

At present, the work of solar water heater temperature control table control winterization system has three kinds of modes:

1. temperature control is antifreeze: when the pipeline temperature drops to 3～5 ℃, instrument is exported 220 power supplys, output 36V safety power supply behind isolating transformer, again through resettable fuse to calandria, water in the pipeline begins to heat up, during 15～30 ℃ of outage temperature of setting when the water temperature temperature controller, temperature controller stops to export 220 voltages, and the inner defroster of pipeline promptly quits work.

2. regularly antifreeze: by user or dealer's setting-up time parameter, energising in the unit interval, outage, the heating of control calandria is antifreeze.

3. manually thaw: when early morning, the user found that the hot water line can not put hot water, it was stifled to judge that outdoor pipeline freezes, at this moment, need user oneself that the insulation button on the temp controlled meter is clicked, calandria gets electric heating and thaws, when hot water gets off, click the insulation button again, the ribbon heater outage.

The inner defroster of the utility model fluid pipeline can be complementary with above-mentioned three kinds of working methods, and antifreezing effect is far superior to the ribbon heater.

Claims (7)

1. the inner defroster of a liquid line; it is characterized in that: comprise and isolate transforming circuit, calandria, automatic protection circuit and water repellent component; described calandria is inserted in liquid line inside; automatic protection circuit and calandria are connected in series and are connected to Timing power supply after isolate transforming circuit; the input of calandria is connected to temp controlled meter, seals by water repellent component between calandria and the liquid line.

2. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described calandria is a heating wire, and its length is suitable with liquid line length that need be antifreeze, and the outer surface of calandria is provided with waterproof material.

3. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described water repellent component comprises ceramics (1,3), waterproof pad or waterproof clay (2) and clamping nut (4), wherein waterproof pad or waterproof clay (2) are held between two ceramics (1,3), the calandria end is placed through in the middle of waterproof pad or waterproof clay (2) and two ceramics (1,3), through clamping nut (4) close installation on the male thread accessory (6) of liquid line.

4. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described automatic protection circuit is a resettable fuse.

5. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described isolation transforming circuit adopts E type isolating transformer, and secondary voltage is 12V, 24V or 36V.

6. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described Timing power supply for the timer or the temperature control instrument of civil power addition.

7. according to the inner defroster of the described liquid line of claim 1, it is characterized in that: described liquid line is water pipe or oil pipe.

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