CN113669519A

CN113669519A - Heating rubber composite pipe for water supply and drainage of airplane and processing method thereof

Info

Publication number: CN113669519A
Application number: CN202111029632.7A
Authority: CN
Inventors: 姚旭鹏; 姚振学; 田滨锋
Original assignee: Xianyang Xiqin Rubber Industry Co ltd
Current assignee: Xianyang Xiqin Rubber Industry Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-19
Anticipated expiration: 2041-09-03
Also published as: CN113669519B

Abstract

The invention belongs to the technical field of composite pipes, and discloses a heating rubber composite pipe for aircraft water supply and drainage, which comprises a PFA inner lining layer, and a heating wire layer is sleeved on the surface of the PFA inner lining layer, and the heating wire layer A first fabric braided layer is sleeved on the surface of the first fabric braided layer, and a steel braided layer is sleeved on the surface of the first fabric braided layer. The present invention is provided with a PFA inner lining layer, a heating wire layer, a first fabric braided layer, a steel braided layer, a second fabric braided layer, a rubber layer and other structures as the main protective layer, and the rubber layers are used to separate the layers to complete the structure. The protection and overall toughness are strengthened, and then the vulcanization treatment further improves its integrity; and the corresponding heating wire is arranged inside the rubber layer, and the heating device can be used to complete its electric heating work. At this time, under the influence of the heating wire, the whole There is a certain amount of heat in the whole pipeline, which can achieve the purpose of deicing and defrosting after power-on.

Description

Heating rubber composite pipe for water supply and drainage of airplane and processing method thereof

Technical Field

The invention belongs to the technical field of composite pipelines, and particularly relates to a heating rubber composite pipe for water supply and drainage of an airplane and a processing method thereof.

Background

Along with people's economic level's quick improvement, it has been relatively universal to take the aircraft, current aircraft not only possesses the ability of transportation, self also can provide good enjoyment for the user simultaneously, water supply and drainage all is a big problem in the aircraft always, because organism self needs consume certain water, but because its operational environment is high, the condition of ultra-low temperature appears because of the elevation reason very easily, thereby appear supplying drainage pipe and damaging and the inoperative condition, current pipeline still has original heating pipe weight when using big, unable messenger passes through liquid quality of water up to standard, use material scheduling problem that the environmental protection is not protected, suffer from people's disease of falling, certain potential safety hazard has also been existed.

In order to solve the problems, the patent provides a heating rubber composite pipe for supplying and draining water of an airplane and a processing method thereof.

Disclosure of Invention

The invention aims to solve the problems, and provides a heating rubber composite pipe for water supply and drainage of an airplane and a processing method thereof, which have the advantages of solid structure and good anti-freezing effect.

In order to achieve the purpose, the invention provides the following technical scheme: a heating rubber composite pipe for supplying and draining water of an airplane comprises a PFA inner liner layer, wherein a heating wire layer is sleeved on the surface of the PFA inner liner layer, a first fabric woven layer is sleeved on the surface of the heating wire layer, a steel woven layer is sleeved on the surface of the first fabric woven layer, a second fabric woven layer is sleeved on the surface of the steel woven layer, a heating device is fixedly installed in the middle of the top of the second fabric woven layer, and rubber layers are arranged at junctions of the PFA inner liner layer and the heating wire layer, the heating wire layer and the first fabric woven layer, the first fabric woven layer and the steel woven layer, and the steel woven layer and the second fabric woven layer;

the heating device comprises a rubber protective cap, a heating wire is arranged inside the rubber protective cap, the upper end and the lower end of the heating wire are respectively electrically connected with a temperature control switch and a connection point, and the temperature control switch and the left end of the connection point are electrically connected with a wire.

As a preferred technical scheme of the invention, the rubber layer separates the PFA inner liner layer, the heating wire layer, the first fabric woven layer, the steel woven layer and the second fabric woven layer, and the rubber layer is closely attached to the PFA inner liner layer, the heating wire layer, the first fabric woven layer, the steel woven layer and the second fabric woven layer through vulcanization treatment; on the other hand, the rubber layer can improve the toughness of the whole body, and the layers are separated to reduce the friction damage of the layers.

As a preferred technical scheme of the invention, the right ends of the heating wires are arranged inside the rubber layers, and when the heating wires are electrified and operated subsequently, heat is transferred to the rubber layers through the movement of the rubber layers, so that the whole pipeline is ensured to have certain heat, the condensation of frost and cold ice is avoided, and the normal and stable water supply and drainage of the airplane is ensured.

As a preferred technical scheme of the invention, the diameter differences of the PFA inside lining layer, the heating wire layer, the first woven fabric layer, the steel woven fabric layer and the second woven fabric layer are consistent with those of each rubber layer.

The invention also provides a processing method of the heating rubber composite pipe for the water supply and drainage of the airplane, which comprises the following specific operation steps:

firstly, preparing a PFA inner lining layer, a heating wire layer, a first fabric woven layer, a steel woven layer, a second fabric woven layer, a heating device and a rubber layer structure in advance for later use;

secondly, sequentially sleeving materials, namely a PFA inner lining layer, a rubber layer, a heating wire layer, a rubber layer, a first fabric woven layer, a rubber layer, a steel woven layer, a rubber layer, a second fabric woven layer and a rubber layer in sequence, and then cutting and smoothing redundant materials at two ends;

thirdly, slightly heating the whole structure sleeved in the second step to enable the whole rubber layer to have low fluidity, and then manually moving a heating wire to penetrate into each rubber layer;

fourthly, after the integral treatment is finished, the finished product in the third step is subjected to high-temperature vulcanization treatment manually, and then is cooled for ten minutes, and when the integral temperature is reduced to 50 ℃, the extrusion, the limit and the fixation of the inner pipe and the outer pipe are finished by utilizing an annular pressurizing device;

and fifthly, manually connecting and installing other parts of the heating device on the basis of the finished product in the fourth step, and connecting the heating device with a power supply, wherein the whole structure is finished.

The high-temperature vulcanization treatment environment in the fourth step is 0.6 atmospheric pressure, the vulcanization temperature is 75 ℃, the processing time is 15 minutes, and because each structure is relatively clear, a traditional integral casting forming means is not adopted, so that a layer-by-layer nested form can be adopted, the strength and the bonding effect of the whole structure are good, the vulcanization treatment mode is adopted, and the purpose of good integral effect of the whole structure is finally achieved.

And in the second step, the PFA inner lining layer, the rubber layer, the heating wire layer, the rubber layer, the first woven fabric layer, the rubber layer, the steel woven fabric layer, the rubber layer, the second woven fabric layer and the rubber layer are arranged in sequence, and the inner diameter value of the rear structure is equal to the outer diameter value of the front structure.

Compared with the prior art, the invention has the following beneficial effects:

the PFA inner liner, the heating wire layer, the first fabric woven layer, the steel woven layer, the second fabric woven layer, the rubber layer and other structures are arranged as main protective layers, the rubber layer is adopted to separate layer by layer to complete the protection of the structure and the reinforcement of the integral toughness, and then the integrity of the PFA inner liner is further improved through vulcanization treatment; and corresponding heating wires are arranged in the rubber layer, so that the heating device can be used for completing the electrifying heating work, certain heat exists in the whole pipeline under the heating influence of the heating wires, and the purposes of deicing and defrosting can be achieved after electrification.

Drawings

FIG. 1 is a schematic diagram of the overall layering of the structure of the present invention;

FIG. 2 is a left side view of the overall structure of the present invention;

FIG. 3 is a schematic view of a heating device according to the present invention.

In the figure: 1. a PFA innerliner layer; 2. heating the filament layer; 3. a first woven fabric layer; 4. a steel braid layer; 5. a second woven fabric layer; 6. a heating device; 61. a rubber protective cap; 62. heating wires; 63. a temperature control switch; 64. a wire; 65. a connection point; 7. a rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the present invention provides a heating rubber composite pipe for water supply and drainage of an aircraft, including a PFA inner liner 1, a heating wire layer 2 is sleeved on the surface of the PFA inner liner 1, a first fabric woven layer 3 is sleeved on the surface of the heating wire layer 2, a steel woven layer 4 is sleeved on the surface of the first fabric woven layer 3, a second fabric woven layer 5 is sleeved on the surface of the steel woven layer 4, a heating device 6 is fixedly installed in the middle of the top of the second fabric woven layer 5, rubber layers 7 are disposed at the junctions of the PFA inner liner 1 and the heating wire layer 2, the heating wire layer 2 and the first fabric woven layer 3, the first fabric woven layer 3 and the steel woven layer 4, and the steel woven layer 4 and the second fabric woven layer 5;

the heating device 6 comprises a rubber protective cap 61, a heating wire 62 is arranged inside the rubber protective cap 61, the upper end and the lower end of the heating wire 62 are respectively electrically connected with a temperature control switch 63 and a connection point 65, and the left ends of the temperature control switch 63 and the connection point 65 are both electrically connected with a lead 64.

The PFA inner liner 1, the heating wire layer 2, the first fabric woven layer 3, the steel woven layer 4 and the second fabric woven layer 5 are separated by the rubber layer 7, the rubber layer 7 and the PFA inner liner 1 are closely attached to each other through vulcanization treatment, the rubber layer 7 is arranged between the structures, the rubber layer 7 is made of rubber materials and has certain elasticity and can be extruded and deformed by the external environment, obvious damage to the structures is avoided, and the subsequent vulcanization treatment rubber layer 7 can be better integrated into each layer, so that the whole composite pipeline is more closely connected; on the other hand, the rubber layer 7 can improve the toughness of the whole body, and the layers are separated to reduce the friction damage.

Wherein, the right-hand member setting of heater strip 62 is in the inside of each rubber layer 7, and follow-up circular telegram during operation, the heat removes through rubber layer 7 and transmits each layer in, guarantees that whole pipeline self all possesses certain heat, avoids the condensation of frost and cold ice to guarantee the normal and stable of aircraft water supply and drainage.

The PFA inner liner layer 1, the heating wire layer 2, the first woven fabric layer 3, the steel woven fabric layer 4, the second woven fabric layer 5 and each rubber layer 7 are consistent in diameter value difference.

firstly, preparing a PFA inner lining layer 1, a heating wire layer 2, a first fabric woven layer 3, a steel woven layer 4, a second fabric woven layer 5, a heating device 6 and a rubber layer 7 in advance for later use;

secondly, sequentially sleeving materials, namely a PFA inner lining layer 1, a rubber layer 7, a heating wire layer 2, a rubber layer 7, a first fabric woven layer 3, a rubber layer 7, a steel woven layer 4, a rubber layer 7, a second fabric woven layer 5 and a rubber layer 7 in sequence, and then cutting and smoothing redundant materials at two ends;

thirdly, slightly heating the whole structure sleeved in the second step to enable the whole rubber layer 7 to have low fluidity, and then manually moving the heating wires 62 to penetrate into the rubber layers 7;

and fifthly, manually connecting and installing other parts of the heating device 6 on the basis of the finished product in the fourth step, and connecting the parts with a power supply, wherein the whole structure is finished.

The high-temperature vulcanization treatment environment in the fourth step is 0.6 atmospheric pressure, the vulcanization temperature is 75 ℃, the processing time is 15 minutes, the structures are relatively clear, and a traditional integral casting forming means cannot be adopted, so that a layer-by-layer nested form can be adopted, the strength and the bonding effect of the whole structure are good, the vulcanization treatment mode is adopted, and the purpose of good integral effect of the whole structure is finally achieved.

In the second step, the PFA inner lining layer 1, the rubber layer 7, the heating wire layer 2, the rubber layer 7, the first fabric woven layer 3, the rubber layer 7, the steel woven layer 4, the rubber layer 7, the second fabric woven layer 5 and the rubber layer 7 are arranged in sequence, and the inner diameter value of the rear structure is equal to the outer diameter value of the front structure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heating rubber composite pipe for aircraft water supply and drainage, comprising a PFA inner lining layer (1), characterized in that: the surface of the PFA inner lining layer (1) is sleeved with a heating wire layer (2), so A first fabric braided layer (3) is sleeved on the surface of the heating wire layer (2), a steel braided layer (4) is sleeved on the surface of the first fabric braided layer (3), and the steel braided layer is sleeved on the surface. The surface of (4) is sleeved with a second woven fabric layer (5), a heating device (6) is fixedly installed in the middle of the top of the second woven fabric layer (5), and the PFA inner lining layer (1) is connected to the heating device. The silk layer (2), the heating silk layer (2) and the first fabric braided layer (3), the first textile braided layer (3) and the steel braided layer (4), the steel braided layer (4) and the second fabric A rubber layer (7) is provided at the junction of the braided layer (5);

The heating device (6) includes a rubber protective cap (61), a heating wire (62) is arranged inside the rubber protective cap (61), and the upper and lower ends of the heating wire (62) are respectively electrically connected with a warmer. A control switch (63) and a connection point (65) are electrically connected with a wire (64) to the left end of the temperature control switch (63) and the connection point (65).

2. A heating rubber composite pipe for aircraft water supply and drainage according to claim 1, characterized in that: the rubber layer (7) consists of the PFA inner lining layer (1), the heating wire layer (2), the first A fabric braided layer (3), a steel braided layer (4) and a second fabric braided layer (5) are spaced apart and the rubber layer (7) is connected to the PFA inner lining layer (1), the heating wire layer (2), and the second fabric braided layer (5). The first fabric braided layer (3), the steel braided layer (4), and the second fabric braided layer (5) are all closely adhered by vulcanization treatment.

3 . The heating rubber composite pipe for water supply and drainage of an aircraft according to claim 1 , wherein the right end of the heating wire ( 62 ) is arranged inside each rubber layer ( 7 ). 4 .

4. A heating rubber composite pipe for aircraft water supply and drainage according to claim 1, characterized in that: the PFA inner lining layer (1), the heating wire layer (2), the first fabric braided layer (3) ), the steel braided layer (4), the second fabric braided layer (5) and the diameter value difference of each rubber layer (7) are consistent.

5. a heating rubber composite pipe processing method for aircraft water supply and drainage, is characterized in that, concrete operation steps are as follows:

In the first step, the PFA inner lining layer (1), the heating wire layer (2), the first fabric braiding layer (3), the steel braiding layer (4), the second fabric braiding layer (5), the heating device ( 6) Prepare the structure with the rubber layer (7) in advance;

In the second step, the materials are then sleeved in sequence, specifically the PFA inner lining layer (1), the rubber layer (7), the heating wire layer (2), the rubber layer (7), and the first fabric woven layer (3) , rubber layer (7), steel braided layer (4), rubber layer (7), second fabric braided layer (5), rubber layer (7), then cut off the excess material at both ends and smooth it ;

In the third step, the overall structure covered in the second step is slightly heated so that the rubber layer (7) has low fluidity as a whole, and then the heating wire (62) is manually moved and penetrated into the interior of each rubber layer (7);

In the fourth step, after the overall treatment is completed, the finished product of the third step is manually subjected to high-temperature vulcanization treatment, and after cooling it for ten minutes, when the overall temperature drops to 50 °C, the annular pressure device is used to complete the extrusion limit of the inner and outer tubes. bit fixed;

The fifth step is to manually connect and install other components of the heating device (6) on the basis of the finished product in the fourth step, and connect it to the power supply. At this time, the entire structure is completed.

6. The processing method of a heating rubber composite pipe for aircraft water supply and drainage according to claim 5, wherein the high temperature vulcanization treatment environment in the fourth step is 0.6 atmospheric pressure, a vulcanization temperature of 75°C, and a processing time. 15 minutes.

7 . The processing method of a heating rubber composite pipe for aircraft water supply and drainage according to claim 5 , characterized in that: in the second step, the PFA inner lining layer ( 1 ), the rubber layer ( 7 ), the heating wire layer (2), rubber layer (7), first fabric braid (3), rubber layer (7), steel braid (4), rubber layer (7), second fabric braid (5), rubber The arrangement order of the layers (7), the inner diameter value of the latter structure is equal to the outer diameter value of the former structure.