CN107476883B

CN107476883B - Heat insulation sleeve for engine

Info

Publication number: CN107476883B
Application number: CN201710579721.6A
Authority: CN
Inventors: 武海光; 刘文涛
Original assignee: Ningbo Youfo Heat Insulation Material Co ltd
Current assignee: Ningbo Youfo Heat Insulation Material Co ltd
Priority date: 2017-07-17
Filing date: 2017-07-17
Publication date: 2020-06-30
Anticipated expiration: 2037-07-17
Also published as: CN107476883A

Abstract

The invention provides a heat preservation sleeve for an engine, which comprises a heat insulation body and a plurality of groups of buckling pieces for buckling the heat insulation body, wherein the heat insulation body is composed of a first sleeve body, a bending body and a second sleeve body which are sequentially connected, the first sleeve body and the second sleeve body are buckled by the buckling pieces to form a cylindrical structure, each group of buckling pieces comprises a hook and a tension spring which are matched, and the hook and the tension spring are fixed on the heat preservation sleeve through rivets. In the heat preservation sleeve, the hook and the tension spring are matched for use, so that the operation of a user is more convenient.

Description

Heat insulation sleeve for engine

Technical Field

The invention relates to the technical field of engines, in particular to a heat insulation sleeve for an engine.

Background

The temperature rises after flexible festival, bellows or subassembly pipeline etc. absorb high temperature gas in the engine, and the heat gives off to all around, in order to prevent that the heat from causing the damage to the peripheral spare part of pipeline, can increase the heat exchanger in these outside of tubes and carry out thermal-insulated. However, in conventional heat shields, the heat shield is snapped to fit over the tubes in a manner that is not conducive to user operation.

Disclosure of Invention

The invention aims to provide a heat insulation sleeve for an engine, which is convenient for a user to use and can insulate the heat of the engine.

The technical scheme of the invention is as follows: the utility model provides a heat preservation cover for engine, the heat preservation cover is including thermal-insulated body and be used for the lock a plurality of groups buckle spare of thermal-insulated body, thermal-insulated body comprises the first cover body that connects gradually, the body of buckling and second cover body, the first cover body with the second cover body by be cylindrical structure behind the buckle spare lock, every group buckle spare all includes a matched with couple and an extension spring, hang the knot with the extension spring all through rivet fastening on the heat preservation cover.

Preferably, the thermal insulation body comprises an inner layer, a middle layer and an outer layer, wherein the inner layer is a stainless steel wire mesh layer, and the outer layer is a glue coating layer.

Preferably, the material of the middle layer is glass fiber cotton, ceramic fiber cotton, high silicon oxygen cotton or polycrystalline fiber cotton.

Preferably, the wavefront is resistant to 1200 degrees celsius.

Preferably, the intermediate layer is composed of a layer of glass fiber cotton and a layer of high silicon oxygen cotton.

Preferably, the mesh number of the stainless steel wire mesh layer is 120 meshes.

Preferably, the sewing thread is composed of a high-temperature resistant steel wire and an aramid fiber wire.

Preferably, the fastener and the rivet are made of high-temperature-resistant stainless steel materials.

The technical scheme has the following advantages or beneficial effects: in the heat preservation sleeve, the hook and the tension spring are matched for use, so that the operation of a user is more convenient. The design mode of the three-layer heat preservation structure enhances the heat insulation effect. In addition, the structural design mode of syllogic for whole insulation cover is more laminated the pipeline, cuts off the space of heat loss, has increased the effective area of contact of cover in situ surface and tub outer wall, noise abatement and vibrations, resonance because of conch wall and cover in situ space caused when having avoided the engine operation. In addition, the outer silica gel cloth of adoption is in order to wrap up the intermediate level, not only environmental protection but also prevent intermediate level and user's direct contact, convenience of customers uses.

Drawings

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.

FIG. 1 is a schematic diagram of a thermal sleeve for an engine according to the present invention;

FIG. 2 is a partial cross-sectional view of a thermal sleeve for an engine of the present invention;

FIG. 3 is a partial schematic structural view of a fastener used in a thermal jacket of an engine according to the present invention;

in the drawings: 1. a thermally insulating body; 11. a first sleeve body; 12. bending the sleeve body; 13. a second sleeve body; 21. an inner layer; 22. an intermediate layer; 23. an outer layer; 31. hooking; 32. a tension spring; 33. and (4) riveting.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a thermal sleeve for an engine, includes: the heat insulation body 1 and a plurality of groups of buckling pieces used for buckling the heat insulation body 1. The heat insulation body 1 is formed by connecting three parts, namely a first sleeve body 11, a bent sleeve body 12 and a second sleeve body 13 which are sequentially connected. Wherein, first cover body 11 and second cover body 13 are cylindrical structure after being buckled by the buckle spare, and buckle the cover and be irregular form after being buckled by the buckle spare, but inside formation passageway behind first cover body 11, the cover body 12 of buckling and the second cover body 13 buckle to parcel flexible festival, bellows or subassembly pipeline. It should be noted that, because the pipe may be bent, the whole thermal insulation jacket can be ensured to be sleeved on the flexible joint, the corrugated pipe or the component pipe by using the bent sleeve body 12, and the whole device has high flexibility and is suitable for various practical conditions. In addition, the lengths and diameters of the first sleeve body 11 and the second sleeve body 13, the shape of the bent sleeve body 12 and the like can be replaced according to the actual requirements of users, so that the use of the users is facilitated.

In more detail, as shown in fig. 2, the thermal insulation body 1 is formed by three layers, namely an inner layer 21, an intermediate layer 22 and an outer layer 23, wherein the inner layer 21 is a stainless steel wire mesh layer, and the mesh number of the stainless steel wire mesh layer is preferably 120 meshes. The middle layer 22 is made of glass fiber cotton which can resist high temperature of 1200 ℃. The outer layer 23 is a silicon cloth, the thickness of which is preferably 0.4 cm.

Furthermore, the material of the middle layer 22 may also be ceramic fiber cotton, high silicon oxygen cotton or polycrystalline fiber cotton. In addition, the intermediate layer 22 may be composed of a layer of glass fiber cotton and a layer of high-silicon cotton, or a layer of ceramic fiber cotton and a layer of glass fiber cotton, or a layer of high-silicon cotton and a layer of polycrystalline fiber cotton. The intermediate layer 22 is made of two layers of different high-temperature-resistant heat-insulating materials, so that the heat preservation effect of the intermediate layer 22 can be further improved, and the heat preservation performance of the whole heat preservation sleeve is further improved. In addition, the roughness of the material used for the middle layer 22 is poor in touch and not environment-friendly if a user directly contacts the glass fiber cotton or the polycrystalline fiber cotton or the ceramic fiber cotton, so that the middle layer 22 is wrapped by the silicon adhesive tape, the environment is protected, the middle layer 22 is prevented from directly contacting the user, and the use by the user is facilitated.

In addition, the sewing thread on the thermal insulation sleeve is composed of steel wires and aramid fiber threads, and has the characteristic of high temperature resistance.

Further, as shown in fig. 3, the fastening member includes a hook 31 and a tension spring 32, the hook 31 and the tension spring 32 are both fixed on the thermal insulation sleeve by a rivet 33, and the tension spring 32 is matched with the hook 31 to sleeve the thermal insulation sleeve on the flexible joint, the corrugated pipe or the component pipe. Wherein, the fastener and the rivet 33 are made of high temperature resistant stainless steel. Compared with the traditional mode of buckling by utilizing the buckles, the hook 31 and the tension spring 32 are matched for use, so that the operation of a user is more convenient, and in addition, the pipeline type applicable to the heat-insulating sleeve is wider due to the elastic action of the tension spring 32.

In the thermal insulation sleeve, the hook 31 and the tension spring 32 are matched for use, so that the operation of a user is more convenient. The design mode of the three-layer heat preservation structure enhances the heat insulation effect. In addition, the structural design mode of syllogic for whole insulation cover is more laminated the pipeline, cuts off the space of heat loss, has increased the effective area of contact of 21 surfaces of cover inlayer and tub outer wall, noise abatement and vibrations, resonance because of conch wall and cover inlayer 21 space cause when having avoided the engine operation. In addition, outer 23 adopts silica gel cloth in order to wrap up intermediate level 22, not only environmental protection but also prevents intermediate level 22 and user's direct contact, and convenience of customers uses.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims

1. The heat preservation sleeve for the engine is characterized by comprising a heat preservation body (1) and a plurality of groups of buckling pieces for buckling the heat preservation body (1), wherein the heat preservation body (1) is composed of a first sleeve body (11), a bending sleeve body (12) and a second sleeve body (13) which are sequentially connected, the first sleeve body (11) and the second sleeve body (13) are of cylindrical structures after being buckled by the buckling pieces, each group of buckling pieces comprises a hook (31) and a tension spring (32) which are matched with each other, and the hook (31) and the tension spring (32) are fixed on the heat preservation sleeve through rivets (33);

the heat insulation body (1) comprises an inner layer (21), an intermediate layer (22) and an outer layer (23), wherein the inner layer (21) is a stainless steel wire mesh layer, and the outer layer (23) is silica gel cloth;

the middle layer (22) is made of a layer of glass fiber cotton and a layer of high-silicon cotton, or a layer of ceramic fiber cotton and a layer of glass fiber cotton, or a layer of high-silicon cotton and a layer of polycrystalline fiber cotton.

2. The insulating jacket for an engine as claimed in claim 1, wherein said glass wool is resistant to high temperatures of 1200 degrees.

3. The insulating jacket for an engine as set forth in claim 1, wherein the stainless steel wire mesh layer has a mesh number of 120.

4. The insulating jacket for an engine as claimed in claim 1, characterized in that said insulating body (1) further comprises sewing threads consisting of high temperature resistant steel and aramid threads.

5. Insulation cover for engine according to claim 1, characterized in that said clasp and said rivet (33) are made of stainless steel material resistant to high temperatures.