CN210781417U

CN210781417U - Flexible heating pipe

Info

Publication number: CN210781417U
Application number: CN201922038232.7U
Authority: CN
Inventors: 何理; 韩杨; 郑兴宝
Original assignee: Qingdao Shenping Technology Co ltd
Current assignee: Qingdao Shenping Technology Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-16
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a flexible heating pipe, which comprises an inner pipe, a heating layer, a first insulating layer, a heat conducting layer, a second insulating layer and a heat insulating layer from inside to outside in sequence; the heating layer is a net-shaped pipe body woven by carbon fibers, stainless steel or copper materials, and the heat conduction layer is a net-shaped pipe body woven by copper materials; the utility model discloses the zone of heating adopts carbon fiber, stainless steel or copper product to weave the netted body that forms, and its network structure has very strong size adjustment nature, can directly laminate in the inner tube periphery, heats the inner tube through this zone of heating, and effective heating area percentage is high, almost can accomplish with the same heating area of inside pipeline surface, so the heating is even, and heating effect is good, and heating power also can be higher, and the programming rate is faster.

Description

Flexible heating pipe

Technical Field

The utility model relates to a waste gas sampling and preliminary treatment technical field, concretely relates to flexible heating pipe.

Background

At present, flexible heating pipes in the market are mainly electrified and heated by PTC materials or conventional heating wires. The self-constant temperature heat tracing band made of the flexible PTC material has low temperature, so that the requirements of high-temperature heat tracing are difficult to meet, and the PTC has low toughness and large turning radius of a linear structure, and the heat of the PTC is required to be transferred to a heating pipe to be heated by matching a small part of the outer surface with a stainless steel net pipe, so that good heat conduction is difficult to achieve; the heating wire is made of a material which needs to be wound between two insulating layers, the heat tracing band with the structure has the defects that the length of the heat tracing band needs to be a multiple of a certain length, generally a multiple of about 1 meter, otherwise, a heating wire in a section of length can be disconnected, so that the heating function in the period length is lost, and the heating band is the same as a product which is heated by a common finished product heating wire, because the outer layer of the common heating wire is coated with silica gel or tetrafluoroethylene as an insulating material, the temperature resistance of the flexible insulating material is generally not high, when the heating temperature is overhigh, the insulating material can be melted and is easy to leak electricity, and the safety hazard exists, particularly, under the condition of overhigh heating power, because the heat conductivity of the insulating material is generally low, the heat of the heating wire is difficult to be conducted out in a short time, so that the temperature in the insulating material is overhigh and, the heating is uneven due to different winding sparsity, the overall effect is poor, the most important point is that the area of the heating wire capable of being directly heated is limited, and the heating effect and the heating power are seriously influenced due to the lower proportion of the heating area.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims at providing a flexible heating pipe which has the advantages of large heating area, uniform heating, high heating power and rapid temperature rise,

the utility model adopts the technical proposal that:

a flexible heating pipe comprises an inner pipe, a heating layer, a first insulating layer, a heat conducting layer, a second insulating layer and a heat insulating layer from inside to outside in sequence; the zone of heating is for adopting the netted body that carbon fiber, stainless steel or copper product were woven and are formed, the netted body that the heat-conducting layer was woven and is formed for adopting the copper product.

Further, the thermal insulation layer comprises a protective layer, and the protective layer is wrapped outside the thermal insulation layer.

Further, the protective layer is a nylon anilox tube.

Furthermore, each fiber or wire of the heating layer, the heat conduction layer and the protective layer adopts a spiral weaving structure.

Further, the heating device also comprises a temperature sensor, wherein the temperature sensor is arranged on the heating layer or between the inner pipe and the heating layer.

Furthermore, the heating layer, the heat conduction layer or the heat insulation layer is coated with a reflection layer, and the reflection layer is made of an aluminum foil material.

Further, the inner pipe is a polytetrafluoroethylene pipe.

Further, the first insulating layer and the second insulating layer are both heat-shrinkable sleeves.

Furthermore, the heat-insulating layer is made of rubber, rock wool, glass wool or polyurethane materials.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses the zone of heating adopts carbon fiber, stainless steel or copper product to weave the netted body that forms, and its network structure has very strong size adjustment nature, can directly laminate in the inner tube periphery, heats the inner tube through this zone of heating, and effective heating area percentage is high, almost can accomplish with the same heating area of inside pipeline surface, so the heating is even, and heating effect is good, and heating power also can be higher, and the programming rate is faster.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a flexible heating tube according to the present embodiment;

fig. 2 is a schematic view of another directional structure of the flexible heating tube of this embodiment.

Wherein, 1 is the inner tube, 2 is the zone of heating, 3 is the first insulating layer, 4 is the heat-conducting layer, 5 is the second insulating layer, 6 is the heat preservation, 7 is the protective layer.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 and 2, the flexible heating pipe of the present invention comprises, from inside to outside, an inner pipe 1, a heating layer 2, a first insulating layer 3, a heat conducting layer 4, a second insulating layer 5 and a heat insulating layer 6 in sequence; the heating layer 2 is a net-shaped pipe body woven by carbon fibers, stainless steel or copper materials, and the heat conduction layer 4 is a net-shaped pipe body woven by copper materials.

Zone of heating 2 adopts carbon fiber, stainless steel or copper product to weave the netted body that forms, and its network structure has very strong size adjustment nature, can directly laminate in inner tube 1 periphery, heats inner tube 1 through this zone of heating 2, and effective heating area percentage is high, can accomplish almost with the same heating area of inside pipeline surface, so the heating is even, and heating effect is good, and heating power also can be higher, and the programming rate is faster. The carbon fiber, the stainless steel or the copper material has high temperature resistance, the carbon fiber can resist the temperature as high as 650 ℃, under the same insulation and heat preservation conditions, the heat of the heating layer 2 is not easy to deposit, so the carbon fiber can be heated to the upper temperature resistance limit of the insulation material, the temperature overshoot is small, the temperature control is simpler, and the defect that the heating temperature upper limit has to be reduced due to the large heat deposition in the heating zone in the prior art is overcome.

The heat conducting layer 4 is a mesh-shaped pipe body woven by copper materials and used as a heat exchange medium, and the heat of the pipe can be balanced under different heat dissipation conditions due to the long pipe, so that the temperature consistency is good.

Preferably, the thermal insulation material further comprises a protective layer 7, the protective layer 7 wraps the thermal insulation layer 6, and the protective layer 7 is a nylon mesh tube. Through setting up nylon pipe line pipe protective layer 7, it has better high temperature resistant, corrosion-resistant and wearability, can provide effective guard action to body structure in it.

In a further embodiment, each fiber or wire of the heating layer 2, the heat conducting layer 4 and the protective layer 7 adopts a spiral woven structure, so that the problem of inconsistent turning radii at the inner side and the outer side can be effectively solved during bending, and compared with the prior art that the turning radii of tubes are obviously reduced by adopting straight wire heating wires for heating or adopting linear heating modes such as PTC heating belts and the like.

Preferably, inner tube 1 is the polytetrafluoroethylene pipe, and first insulating layer 3 and second insulating layer 5 are heat shrinkage bush, and this heat shrinkage bush has higher elasticity when the heating, between zone of heating 2 and heat-conducting layer 4, set up heat shrinkage bush effect insulating layer between heat-conducting layer 4 and heat preservation 6, firstly play the guard action, secondly play the adhesion effect, prevent between zone of heating 2 and the heat-conducting layer 4, appear sliding between zone of heating 2 and the heat preservation 6.

The heat-insulating layer 6 is made of foaming heat-insulating materials, such as rubber, rock wool, glass wool, polyurethane and the like.

The utility model discloses a zone of heating 2 and heat-conducting layer 4 that weaving technology made have stronger technology adaptability, network structure's zone of heating 2 and the 4 internal diameters of heat-conducting layer have certain regulation nature, can match the inner tube 1 of multiple different pipe diameters, and heat shrinkage bush can self reduce the internal diameter, above-mentioned characteristic is particularly useful for customizing the shorter companion torrid zone of specific length, with various zone of heating 2 when assembling in small batches like this, first insulation layer 3, heat-conducting layer 4, second insulating layer 5, heat preservation 6 and protective layer 7 overlap in proper order on the inner tube 1 can, do not need round circle winding heater strip, greatly reduced the equipment man-hour, and improved production efficiency, overcome current companion torrid zone and be difficult to according to the drawback of customer adjustment technology because of the restriction of mechanized production technology.

In one embodiment, a temperature sensor is further included, which is disposed on the heating layer 2 or between the inner tube 1 and the heating layer 2. The temperature sensor is a product sold in the market, and can detect the heating temperature in real time and act on the basis of temperature display and control by arranging the temperature sensor.

In a further embodiment, the heating layer 2, the heat conducting layer 4 or the heat insulating layer 6 is coated with a reflecting layer made of aluminum foil. Through setting up the aluminium foil reflection stratum, this reflection stratum reflex action of accessible reduces thermal loss, improves heating and heat preservation effect.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A flexible heating pipe is characterized by sequentially comprising an inner pipe (1), a heating layer (2), a first insulating layer (3), a heat conducting layer (4), a second insulating layer (5) and a heat insulating layer (6) from inside to outside; the heating layer (2) is a netted pipe body formed by weaving carbon fibers, stainless steel or copper materials, and the heat conduction layer (4) is a netted pipe body formed by weaving copper materials.

2. The flexible heating tube according to claim 1, characterized by further comprising a protective layer (7), wherein the protective layer (7) is wrapped outside the thermal insulation layer (6).

3. Flexible heating pipe according to claim 2, characterized in that the protective layer (7) is a nylon mesh pipe.

4. The flexible heating pipe according to claim 2, characterized in that each fiber or wire of the heating layer (2), the heat conducting layer (4) and the protective layer (7) is in a spiral woven structure.

5. The flexible heating tube according to claim 1, characterized by further comprising a temperature sensor arranged on the heating layer (2) or between the inner tube (1) and the heating layer (2).

6. The flexible heating tube according to claim 1, characterized in that the heating layer (2), the heat conducting layer (4) or the heat insulating layer (6) is coated with a reflecting layer made of aluminum foil material.

7. The flexible heating pipe according to any of claims 1 to 6, characterized in that the inner pipe (1) is a polytetrafluoroethylene pipe.

8. The flexible heating pipe according to any of claims 1 to 6, characterized in that the first insulating layer (3) and the second insulating layer (5) are both heat shrink sleeves.

9. The flexible heating pipe according to any one of claims 1 to 6, wherein the heat insulation layer (6) is made of rubber, rock wool, glass wool or polyurethane material.