CN103068081A - Pincerlike automatic temperature control heater used for aircraft water and wastewater system - Google Patents
Pincerlike automatic temperature control heater used for aircraft water and wastewater system Download PDFInfo
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- CN103068081A CN103068081A CN201210577640XA CN201210577640A CN103068081A CN 103068081 A CN103068081 A CN 103068081A CN 201210577640X A CN201210577640X A CN 201210577640XA CN 201210577640 A CN201210577640 A CN 201210577640A CN 103068081 A CN103068081 A CN 103068081A
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- rubber seal
- pincerlike
- heater
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- waste water
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Abstract
The invention belongs to airborne equipment technique, particularly relates to a pincerlike automatic temperature control heater used for an aircraft water and wastewater system, and resolves the defects that an existing airborne heater is inconvenient to use and maintain, wastes electrical energy, and is short in service life. The pincerlike automatic temperature control heater comprises a rubber seal piece, wherein a thermal insulation layer is integrally wrapped outside the rubber seal piece, and a nylon hasp is installed outside the thermal insulation layer; and the rubber seal piece is pincerlike, a transverse through hole is formed in the upper portion of the rubber seal piece, and a longitudinal opening communicated with the transverse through hole is formed in the top of the rubber seal piece. According to the pincerlike automatic temperature control heater, pipeline contact between the heater and the water and waste water system is good, heat loss can be effectively reduced, and therefore ohmic heating time is reduced, the electrical energy is saved, and meanwhile the service life of a heating pad is greatly prolonged. The pincerlike automatic temperature control heater is installed in a pipeline of the water and waste water system of an aircraft, can prevent the pipeline of the water and waste water system from freezing in flying of the aircraft, and enables the service life to reach 30 years or 30000 flying hours.
Description
Technical field
The invention belongs to the airborne equipment technology, be specifically related to a kind of aircraft water and the pincerlike heater having auto-regulating temp of waste water system.
Background technology
When aircraft flew in the endoatmosphere, the water of aircraft and waste water system need to adopt heating element to the heating of switching on of water and waste water system, and it is not frozen or having ice ability.If do not adopt heating element, the water of aircraft and waste water system pipe interface will freeze, and pipeline occurs to ice and blocks up when serious, affects the operation of water and the waste water system of aircraft.
Existing heater is comprised of rubber seal, high temperature resistant wire, lectrothermal alloy wire, and rubber seal is the two-layer rubber blanket composition that is bonded together, and lectrothermal alloy wire is bonded in the middle of the two-layer rubber blanket.The heating resistance pad profile is band shape and dish type, and the dish type heating resistance pad needs bolt to connect or glue just can be installed on the joint of water/waste water system, and band shape heating resistance pad is wrapped in the pipeline.Using bolt to connect has increased construction weight and complexity, and the process of installing simultaneously must just can be finished by tool using; Band shape heating resistance pad twines to be installed, and it is unreliable to install, the problem of loose contact.All there is the defective of working service in the mounting means of original heating resistance pad.Heating resistance pad is not installed heat-insulation layer, and the rubber-heating pad is directly exposed in the external environment condition, although the thermal conductivity of rubber itself is not high, still exists no small temperature and scatters and disappears, and this has just caused waste to electric energy valuable on the aircraft.Simultaneously, energising also causes harmful effect to the life-span of heater strip and rubber blanket for a long time.
Summary of the invention
There is the defective of working service inconvenience in the present invention in order to solve above-mentioned existing airborne heater, and has the problem of lacking in waste of energy and useful life, and a kind of aircraft water and the pincerlike heater having auto-regulating temp of waste water system are provided.The present invention can improve heat transference efficiency according to the profile characteristics design that is heated pipeline, the convenient installation, and have enough Insulations can reduce heat leakage, have automatic temperature-adjusting control function.
The present invention adopts following technical scheme to realize:
The pincerlike heater having auto-regulating temp of aircraft water and water system, comprise rubber seal, high temperature resistant wire, lectrothermal alloy wire and thermostat, described lectrothermal alloy wire is coiled in the middle of the rubber seal, thermostat places in the middle of the rubber seal, the two ends of thermostat are connected with two lectrothermal alloy wires respectively, the other end of two lectrothermal alloy wires is connected with high temperature resistant wire respectively again, high temperature resistant wire is drawn rubber seal and is connected with power supply, the external overall that it is characterized in that rubber seal is enclosed with heat-insulation layer, and heat-insulation layer is equipped with velcro outward; Rubber seal is pincerlike, and the top of rubber seal has cross through hole, and the top of rubber seal has longitudinal opening and communicates with cross through hole.
The width of described longitudinal opening is 1/5～1/10 of cross through hole diameter.Described lectrothermal alloy wire adopts iron cobalt nickel alloy.Described rubber seal adopts high-temperature-resisting silicon rubber.
The present invention is for improving heat transference efficiency, the convenient installation, according to the size that is heated aircraft water system pipeline and shape heater design is pincer, like this, when mounting heater, only need that " pincer " located to aim at water pipe and install, rely on the pincerlike structure of rubber seal to fit with water pipe.
The present invention prevents scattering and disappearing of temperature, at the outer whole parcel heat-insulation layer of rubber seal, the thermal conductivity of heat-insulation layer own is extremely low, can effectively reduce the hot temperature that causes of transmitting and scatter and disappear, this material has the characteristic of fire protection flame retarding simultaneously, has further strengthened the coefficient of safety of heating resistance pad.When heating resistance pad with Water pipe heating behind predetermined temperature, heat-insulation layer can maintain predetermined temperature range with heating pad temperature for a long time, thereby has reduced number of times and the time of heating energising, has played saves energy, prolongs the effect of heating resistance pad working life.
The present invention is reliable for what guarantee to connect, is outside equipped with a circle velcro at heat-insulation layer, after rubber seal and pipeline applying, and the fastening velcro, it is firm to guarantee that heater is installed.This structure can only need a people can finish charge and discharge operations so that heater is installed or dismantled all be need not by instrument, has greatly improved the simplicity of working service.
The present invention has following beneficial effect, and the present invention becomes pincerlike according to the profile of pipeline with heater design, parcel pipeline that can be good, and heat is transmitted enough good.Heat-insulation layer can prevent scattering and disappearing of temperature effectively with the whole parcel of rubber seal among the present invention, thereby has reduced energising heating time, has also greatly prolonged the useful life of heating resistance pad when having saved electric energy.Velcro is installed in the outside of heat-insulation layer among the present invention, and velcro can be fixed on the temperature automatically controlled rubber-heating pad of pincer on the pipeline reliably.The present invention prevents scattering and disappearing of temperature effectively, thereby has reduced energising heating time, has also greatly prolonged the useful life of heater when having saved electric energy.Reliability of the present invention and high life, good insulating, heat is transmitted good, installs reliable.The present invention is installed in the pipeline of water/waste water system of aircraft, can prevent that the pipeline of sealing/waste water system freezes when aircraft flight, can reach 30 years useful life or 30000 pilot time.
Description of drawings
Fig. 1 is front view of the present invention,
Fig. 2 is cutaway view of the present invention,
Among the figure: 1-rubber seal, 2-high temperature resistant wire, 3-lectrothermal alloy wire, 4-heat-insulation layer, 5-thermostat, 6-velcro, 7-cross through hole, 8-longitudinal opening.
Embodiment
By reference to the accompanying drawings the specific embodiment of the present invention is described further.
Aircraft water and waste water system comprise pincerlike rubber seal, high temperature resistant wire, lectrothermal alloy wire, heat-insulation layer, thermostat, velcro with pincerlike heater having auto-regulating temp.
Set the break-make temperature spot of thermostat, connect when temperature is lower than breakpoint temperature T1, temperature is higher than connects temperature T 2 disconnections.
Length with regulation resistance value requirement under the lectrothermal alloy wire, as required lectrothermal alloy wire is turned to spiral status or alignment and become the raw silk rings state, as shown in Figure 1, the electric heating B alloy wire is coiled in the rubber, the combination blank that combines is placed on is sulfided into mould, become pincerlike according to sulfuration process.After the moulding, the heating B alloy wire places the fully parcel of rubber seal, and lectrothermal alloy wire and pipeline are isolated fully.Thermostat is installed, and with thermostat two ends and the crimping of electric heating B alloy wire or welding, other two ends and the high temperature resistant wire of electric heating B alloy wire carry out crimping or welding; Heater circuit is drawn by two high temperature resistant wires.The bonding parcel one layer of heat preservation layer of the outer employing of rubber seal after the moulding.The bonding circle velcro in heat-insulation layer outer ring.
The present invention adopts sulfuration that the electric heating B alloy wire is wrapped in rubber seal inside fully, and is in the centre of rubber seal, and is sulfided into pincer; Employing heat-insulation layer parcel; Velcro is installed; The employing thermostat is experienced variations in temperature and heater circuit is controlled, thermostat is placed in the easiest place of experiencing the pipeline variations in temperature, when temperature is reduced to T1, heater circuit is connected in thermostat work, begin system heating, when temperature was higher than T2, thermostat work connect the disconnection heater circuit, stops system heating.
When aircraft is installed and used, pincerlike heater having auto-regulating temp profile designs according to the shape of the pipeline of the water/waste water system of aircraft, pincerlike rubber seal is fitted on the face that interface need to heat closely, and thermostat is pressed close to the easiest place of experiencing the pipeline temperature most.This series products is in the aircraft flight process, plugged, for the electrothermal alloy silk, the heat that lectrothermal alloy wire produces raises the temperature of pipeline by the pipeline of rubber seal transmission feedwater/waste water system to power supply through high temperature resistant wire, when temperature is higher than T1, thermostat work disconnects heater circuit, and stopped heating is when temperature is lower than T2 ℃, heater circuit is connected in thermostat work, begins system heating.Heat-insulation layer is wrapped in the outside of heating resistance pad, reduces thermal loss.Velcro is fixed in the water, waste water system pipeline of aircraft.
The material of rubber seal 1 is high-temperature-resisting silicon rubber, and it seals lectrothermal alloy wire, makes lectrothermal alloy wire and line isolation; Pass pipeline with the heat that lectrothermal alloy wire produces; Pincer can make heating resistance pad contact well with pipeline.
High temperature resistant wire 2 is with in the power supply electricity access lectrothermal alloy wire.
Thermostat 4 is the bi-metal temperature control switch of miniaturization, utilizes the different heat expansion coefficient of two kinds of different metals, makes it that on-off action occur.Experience the pipeline variations in temperature, when temperature was higher than T1 ℃, thermostat work disconnected heater circuit, and when temperature was lower than T2 ℃, heater circuit was connected in thermostat work.
Heat-insulation layer is 5 lightweight, fire protection flame retarding, heat transmitting are bad.In heating resistance pad, work the function that reduces thermal loss.
Velcro 6 lightweight, fire protection flame retardings will be fixedly mounted on pipeline in the heater.
Embodiment: heater drain
Be installed in the drainage pipe of aircraft, adopt velcro to fix drainage pipe external diameter φ 14.
Performance parameter is as follows:
Power supply: DC28V;
Power: 30 W;
Breakpoint temperature (T1): temperature is higher than 30 ℃ ± 5 ℃;
Connect temperature (T2): temperature is lower than 12 ℃;
Lectrothermal alloy wire: resistance, 26 Ω, raw silk rings state, diameter phi 0.2;
Set the break-make temperature spot of thermostat, connect when temperature is lower than 12 ℃, temperature is higher than 30 ℃ of disconnections, and the break-make temperature difference is at 5 ℃～25 ℃;
Heat-insulation layer adopts ceramic fiber cloth, thickness 1mm;
Velcro adopts the PPS velcro;
Pincerlike rubber seal internal diameter φ 18;
The width of longitudinal opening: 3mm.
Length 5.5m under the lectrothermal alloy wire is guaranteed to reach regulation resistance value 26 Ω, the raw silk rings state is coiled in the rubber, and thermostat is installed, and with thermostat two ends and the crimping of electric heating B alloy wire or welding, other two ends and the high temperature resistant wire of electric heating B alloy wire carry out crimping or welding; The combination blank that combines is placed on curing forming mold, carries out moulding according to sulfuration process.Heat-insulation layer is bonded in the outside of rubber seal, and velcro is bonded on the heat-insulation layer.
Claims (4)
1. an aircraft water and the pincerlike heater having auto-regulating temp of waste water system, comprise rubber seal (1), high temperature resistant wire (2), lectrothermal alloy wire (3) and thermostat (4), described lectrothermal alloy wire (3) is coiled in the middle of the rubber seal (1), thermostat (5) places in the middle of the rubber seal (1), the two ends of thermostat (5) are connected with two lectrothermal alloy wires (3) respectively, the other end of two lectrothermal alloy wires (3) is connected with high temperature resistant wire (2) respectively again, high temperature resistant wire (2) is drawn rubber seal (1) and is connected with power supply, the external overall that it is characterized in that rubber seal (1) is enclosed with heat-insulation layer (4), the outer velcro (6) that is equipped with of heat-insulation layer (4); Rubber seal (1) is pincerlike, and the top of rubber seal (1) has cross through hole (7), and the top of rubber seal (1) has longitudinal opening (8) and communicates with cross through hole (7).
2. aircraft water according to claim 1 and the pincerlike heater having auto-regulating temp of waste water system, the width that it is characterized in that described longitudinal opening (8) is 1/5～1/10 of cross through hole (7) diameter.
3. aircraft water according to claim 1 and 2 and the pincerlike heater having auto-regulating temp of waste water system is characterized in that described lectrothermal alloy wire (3) adopts iron cobalt nickel alloy.
4. aircraft water according to claim 3 and the pincerlike heater having auto-regulating temp of waste water system is characterized in that described rubber seal (1) adopts high-temperature-resisting silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577640.XA CN103068081B (en) | 2012-12-27 | 2012-12-27 | The pincerlike heater having auto-regulating temp of aircraft water and waste water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577640.XA CN103068081B (en) | 2012-12-27 | 2012-12-27 | The pincerlike heater having auto-regulating temp of aircraft water and waste water system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103068081A true CN103068081A (en) | 2013-04-24 |
| CN103068081B CN103068081B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210577640.XA Active CN103068081B (en) | 2012-12-27 | 2012-12-27 | The pincerlike heater having auto-regulating temp of aircraft water and waste water system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001691A (en) * | 2017-11-08 | 2018-05-08 | 武汉航空仪表有限责任公司 | A kind of draining rod structure for aircraft discharge of wastewater |
| CN111043434A (en) * | 2019-12-24 | 2020-04-21 | 太原航空仪表有限公司 | High-safety heating pad |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655480A (en) * | 1984-08-08 | 1987-04-07 | Georg Fischer Aktiengesellschaft | Molded tapping member formed of a weldable plastics material |
| GB2183430A (en) * | 1985-11-21 | 1987-06-03 | Carle Hay Nigel | Fuel heater |
| CN2921545Y (en) * | 2006-07-25 | 2007-07-11 | 周庆立 | Self-controlling temperature PTC insulating hose |
| CN201282570Y (en) * | 2008-07-09 | 2009-07-29 | 周书忠 | Electric heating apparatus |
-
2012
- 2012-12-27 CN CN201210577640.XA patent/CN103068081B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655480A (en) * | 1984-08-08 | 1987-04-07 | Georg Fischer Aktiengesellschaft | Molded tapping member formed of a weldable plastics material |
| GB2183430A (en) * | 1985-11-21 | 1987-06-03 | Carle Hay Nigel | Fuel heater |
| CN2921545Y (en) * | 2006-07-25 | 2007-07-11 | 周庆立 | Self-controlling temperature PTC insulating hose |
| CN201282570Y (en) * | 2008-07-09 | 2009-07-29 | 周书忠 | Electric heating apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001691A (en) * | 2017-11-08 | 2018-05-08 | 武汉航空仪表有限责任公司 | A kind of draining rod structure for aircraft discharge of wastewater |
| CN111043434A (en) * | 2019-12-24 | 2020-04-21 | 太原航空仪表有限公司 | High-safety heating pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103068081B (en) | 2015-09-30 |
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