A thermal insulation device for large-volume heavy-load tank trucks

Abstract

The present invention relates to a tank truck insulation device, and specifically to an insulation device for a large-volume, heavy-load tank truck, which solves the problem of existing insulated tank trucks that as the load increases, the volume of the tank body increases, resulting in a limited thickness of the insulation layer. The insulation device for a large-volume, heavy-load tank truck comprises two head insulation shells, multiple annular insulation shells, and two groups of bolster insulation shells; the two head insulation shells are respectively arranged on the outer surfaces of the two heads of the tank truck; the multiple annular insulation shells are arranged on the tank body of the tank truck; the bolster insulation shell is located between the annular insulation shell and the head insulation shell; the outer surface of the tank body is coated with aerogel insulation paint to form a first insulation layer; aerogel insulation cotton felt is arranged between the two head insulation shells and the tank body, between the multiple annular insulation shells and the tank body, and between the two groups of bolster insulation shells and the tank body to form a second insulation layer.

Description

Technical Field

[0001] The invention relates to a thermal insulation device for a tank truck, in particular to a thermal insulation device for a large-volume and heavy-load tank truck. Background Art

[0002] Large-capacity, heavy-load railroad tank cars are the future of railroad tank car technology and represent advanced productivity in railroad liquid transportation. Currently, existing railroad tank cars have been upgraded from 60-ton capacity tank cars to 70-ton capacity tank cars, and are gradually moving towards 80-ton capacity tank cars.

[0003] Under existing railway gauge standards, as loads increase and tank volumes increase, the thickness of the insulation layer on insulated tank cars is compressed to a certain extent. To reduce the thickness of the insulation layer on large, heavy-loaded railway tank cars and ensure the real-time insulation effect of the medium contained in these large, heavy-loaded tank cars, improvements must be made to the insulation layer and insulation structure of existing insulated tank cars. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that as the load of existing insulated tank trucks increases, the volume of the tank body increases, resulting in the thickness of the insulation layer being limited, and to provide an insulation device for large-volume heavy-load tank trucks.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A heat preservation device for a large-volume, heavy-load tank truck, which is special in that it comprises two head heat preservation shells, multiple annular heat preservation shells and two sets of bolster heat preservation shells;

[0007] The two head insulation shells are respectively arranged on the outer surfaces of the two heads of the tank car through annular supports;

[0008] The plurality of annular insulation shells are arranged on the tank body of the tank truck through annular supports and longitudinal supports, and are located between the two head insulation shells;

[0009] The bolster insulation shell is arranged at a relative position between the tank body and the bolster, and the bolster insulation shell is located between the annular insulation shell and the head insulation shell;

[0010] The outer surface of the tank body is coated with an aerogel thermal insulation coating to form a first thermal insulation layer;

[0011] Aerogel insulation cotton felt is arranged between the two head insulation shells and the tank body, between the multiple annular insulation shells and the tank body, and between the two groups of bolster insulation shells and the tank body to form a second insulation layer.

[0012] Furthermore, it also includes circumferential moldings and longitudinal moldings arranged on the outer surfaces of the head insulation shell and multiple circumferential insulation shells.

[0013] Furthermore, the bolster insulation shell includes a first bolster insulation shell, two second bolster insulation shells, a third bolster insulation shell and a fourth bolster insulation shell;

[0014] The first bolster insulation shell, the two second bolster insulation shells, the third bolster insulation shell and the fourth bolster insulation shell are all arranged on the bottom of the tank body through the bolster circumferential support members, the bolster longitudinal support members and the bolster insulation shell support angle members;

[0015] Aerogel insulation cotton felt is provided between the first bolster insulation shell, the second bolster insulation shell, the third bolster insulation shell and the fourth bolster insulation shell and the tank body.

[0016] Furthermore, the aerogel insulation felt between the two head insulation shells and the tank body is fixedly connected by a head fixing strip and a head insulation fixing piece, and the head fixing strip is perpendicular to the head insulation fixing piece;

[0017] The aerogel insulation felt between the annular insulation shell and the tank body is fixedly connected by annular supports and longitudinal supports;

[0018] The aerogel insulation felt between the first bolster insulation shell, the two second bolster insulation shells, the third bolster insulation shell and the fourth bolster insulation shell and the tank body is fixedly connected by the bolster circumferential support member, the bolster longitudinal support member and the bolster insulation shell support angle member.

[0019] Furthermore, the annular support member includes an arc-shaped angle steel, a first supporting angle steel, and a first fiberglass backing plate;

[0020] The arc-shaped angle steel and the first supporting angle steel are separated by a first glass fiber reinforced plastic pad and connected by bolts; the first supporting angle steel is arranged on the tank body;

[0021] The bolster annular support member has the same structure as the annular support member.

[0022] Furthermore, the longitudinal support member includes an angle steel, a second supporting angle steel, and a second fiberglass backing plate;

[0023] The angle steel and the second supporting angle steel are separated by a second glass fiber reinforced plastic backing plate and connected by bolts; the second supporting angle steel is arranged on the tank body;

[0024] The bolster longitudinal support member has the same structure as the longitudinal support member.

[0025] Furthermore, the head insulation fixing member includes a steel plate, bolts, and nuts, and the bolts are pre-welded on the steel plate; the steel plate is connected to the tank body;

[0026] The nut fastens the head fixing strip to the bolt.

[0027] Furthermore, the bolster insulation shell supporting angle pieces are welded to the tank body.

[0028] Furthermore, the head insulation shell is made of conical carbon steel plates;

[0029] The width of the circumferential and longitudinal beadings is 80 mm, the thickness is 3 mm, and the material is flat steel plate;

[0030] The thickness of the annular insulation shell is 3mm and the material is carbon steel plate;

[0031] The thickness of the first bolster insulation shell, the second bolster insulation shell, the third bolster insulation shell, and the fourth bolster insulation shell are all 3 mm, and are made of carbon steel plates.

[0032] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0033] 1. The present invention's insulation device for large-volume, heavy-load tank trucks utilizes two insulation layers: aerogel insulation coating and aerogel insulation felt. The aerogel insulation coating forms a closed space on the tank surface, effectively preventing thermal bridges. Compared to traditional insulation materials such as glass wool and rock wool, aerogel insulation felt has a lower thermal conductivity and provides superior insulation performance when the insulation layer is thin. The combined use of two insulation layers ensures the thermal insulation performance of large-volume tank trucks, even with thin insulation layers.

[0034] 2. The heat-insulating fiberglass backing plate used in the heat-insulating device for large-volume heavy-load tank trucks of the present invention can effectively block the heat bridge of heat transfer from the tank body to the outside, improve the heat conduction resistance, and improve the heat insulation performance of the entire vehicle.

[0035] 3. The heat preservation device for a large-volume, heavy-load tank truck of the present invention connects the angle steel with the supporting angle steel. The support height can be adjusted by adjusting the drilling position of the connecting bolt hole to adapt to different insulation layer thicknesses.

[0036] 4. The insulation surface of the insulation structure of the large-volume and heavy-load tank car of the present invention adopts a pressure strip structure at the head, and is pre-tightened by bolt connection, which improves the fixation reliability of the insulation cotton and ensures that the first insulation layer and the second insulation layer do not fall off under the vibration conditions of railway operation, and the insulation performance at the head does not decay. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of an embodiment of a heat preservation device for a large-volume, heavy-load tank truck according to the present invention;

[0038] Figure 2 for Figure 1 Schematic diagram of the structure at AA in the middle;

[0039] Figure 3 for Figure 2 A partial enlarged view of the middle longitudinal support member;

[0040] Figure 4 for Figure 1 Schematic diagram of the structure in the middle B direction;

[0041] Figure 5 for Figure 1 Schematic diagram of the structure in the C direction;

[0042] Figure 6 This is a schematic structural diagram of a tank body in an embodiment of a heat preservation device for a large-volume, heavy-load tank truck according to the present invention;

[0043] Figure 7 This is a schematic structural diagram of a tank head in an embodiment of a heat preservation device for a large-volume, heavy-load tank truck according to the present invention;

[0044] Figure 8 for Figure 7 Right view;

[0045] Figure 9 This is a schematic structural diagram of a longitudinal support member in an embodiment of a heat preservation device for a large-volume, heavy-load tank truck according to the present invention;

[0046] Figure 10 This is a schematic structural diagram of the annular support member in an embodiment of the heat preservation device for a large-volume, heavy-load tank truck of the present invention;

[0047] Figure 11 This is a schematic structural diagram of a longitudinal support member of a bolster in an embodiment of a heat preservation device for a large-volume, heavy-load tank truck of the present invention;

[0048] Figure 12 Schematic diagram of the structure of the circumferential support member of the bolster in an embodiment of the heat preservation device for a large-volume heavy-load tank truck of the present invention;

[0049] Figure 13 This is a schematic structural diagram of the insulation shell of the third bolster in an embodiment of the insulation device for a large-volume, heavy-load tank truck of the present invention;

[0050] Figure 14 This is a schematic structural diagram of the second bolster insulation shell in an embodiment of the insulation device for a large-volume, heavy-load tank truck of the present invention;

[0051] Figure 15 This is a schematic structural diagram of the fourth bolster insulation shell in an embodiment of the insulation device for a large-volume, heavy-load tank truck of the present invention;

[0052] Figure 16 This is a schematic structural diagram of a head insulation fixing member in an embodiment of a heat preservation device for a large-volume, heavy-load tank truck of the present invention;

[0053] Figure 17 This is a schematic structural diagram of the aerogel thermal insulation felt and aerogel thermal insulation coating in an embodiment of the thermal insulation device for a large-volume, heavy-load tank truck of the present invention.

[0054] The accompanying drawings are denoted as follows:

[0055] 1-Head insulation shell, 2-Circumferential beading, 3-Longitudinal beading, 4-Circumferential insulation shell, 5-Tank body, 6-Circumferential support, 61-Arc angle steel, 62-First supporting angle steel, 63-First FRP pad, 7-Longitudinal support, 71-Angle steel, 72-Second supporting angle steel, 73-Second FRP pad, 8-Head fixing strip, 9-Pillow circumferential support, 10-Pillow longitudinal support, 11-First pillow insulation shell, 12-Second pillow insulation shell, 13-Third pillow insulation shell, 14-Pillow insulation shell supporting angle piece, 15-Fourth pillow insulation shell, 16-Head insulation fixing piece, 17-Aerogel insulation cotton felt, 18-Aerogel insulation coating. DETAILED DESCRIPTION

[0056] like Figure 1 As shown, the insulation device for a large-volume heavy-load tank car of the present invention is used for insulation of a large-volume heavy-load railway tank car, and includes two head insulation shells 1, multiple annular insulation shells 4 and two sets of bolster insulation shells;

[0057] The structure of large-volume heavy-load tank truck and tank head is as follows Figure 6 、 Figure 7 、 Figure 8 As shown, the two head insulation shells 1 are respectively arranged on the outer surfaces of the two heads of the tank car through the annular support members 6, as shown in FIG. Figure 4 shown.

[0058] A plurality of annular insulation shells 4 are arranged on the tank body 5 of the tank truck through annular supports 6 and longitudinal supports 7 and are located between the two head insulation shells 1; the annular insulation shells 4 are 3mm carbon steel plates prefabricated with a certain curvature.

[0059] The bolster insulation shell is arranged at a position relative to the tank body 5 and the bolster, and the bolster insulation shell is located between the annular insulation shell 4 and the head insulation shell 1.

[0060] like Figure 17 As shown, the outer surface of the tank body 5 is coated with aerogel insulation coating 18, forming a first insulation layer. Aerogel insulation felt 17 is installed between the two end caps and the tank body 5, between the multiple annular insulation shells 4 and the tank body 5, and between the two sets of bolster insulation shells and the tank body 5, forming a second insulation layer.

[0061] like Figure 2 、 Figure 3 As shown, circumferential beadings 2 and longitudinal beadings 3 are provided on the outer surfaces of the head insulation shell 1 and the multiple circumferential insulation shells 4. Circumferential support members 9 and longitudinal support members 10 are provided on the outer surfaces of the two groups of bolster insulation shells. The structures of the circumferential support members 9 and longitudinal support members 10 are shown in FIG. Figure 11 、 Figure 12As shown. Figure 5 、 Figure 13 、 Figure 14 、 Figure 15 As shown, the bolster insulation shell includes a first bolster insulation shell 11, two second bolster insulation shells 12, a third bolster insulation shell 13, and a fourth bolster insulation shell 15; the first bolster insulation shell 11, two second bolster insulation shells 12, the third bolster insulation shell 13, and the fourth bolster insulation shell 15 are all arranged at the bottom of the tank body 5 through the bolster circumferential support member 9, the bolster longitudinal support member 10, and the bolster insulation shell support angle member 14. Aerogel insulation cotton felt 17 is arranged between the first bolster insulation shell 11, the second bolster insulation shell 12, the third bolster insulation shell 13, and the fourth bolster insulation shell 15 and the tank body 5; the outer surfaces of the two head insulation shells 1 are provided with head fixing strips 8 and head insulation fixing members 16. The aerogel insulation felt 17 between the two head insulation shells 1 and the tank body 5 is fixedly connected by head fixing strips 8 and head insulation fixings 16, with the head fixing strips 8 perpendicular to the head insulation fixings 16. The aerogel insulation felt 17 between the circumferential insulation shell 4 and the tank body 5 is fixedly connected by circumferential supports 6 and longitudinal supports 7. The aerogel insulation felt 17 between the first bolster insulation shell 11, the two second bolster insulation shells 12, the third bolster insulation shell 13, and the fourth bolster insulation shell 15 and the tank body 5 is fixedly connected by bolster circumferential supports 9, longitudinal supports 10, and bolster insulation shell support angles 14. The head insulation shell 1 is assembled from tapered carbon steel plates. The width of the circumferential molding 2 and the longitudinal molding 3 are both 80 mm and the thickness is 3 mm, and the material is all flat steel plate; the thickness of the first bolster insulation shell 11, the second bolster insulation shell 12, the third bolster insulation shell 13, and the fourth bolster insulation shell 15 are all 3 mm, and the material is all carbon steel plate. The fourth bolster insulation shell 15 has a certain curvature and is welded to the support plate of the tank body 5.

[0062] like Figure 10 As shown, the annular support member 6 includes an arc-shaped angle steel 61, a first support angle steel 62, and a first fiberglass pad 63; the arc-shaped angle steel 61 and the first support angle steel 62 are separated by the first fiberglass pad 63 and connected by bolts; the first support angle steel 62 is arranged on the tank body 5; the bolster annular support member 9 has the same structure as the annular support member 6.

[0063] like Figure 3 、 Figure 9 As shown, the longitudinal support member 7 includes an angle steel 71, a second support angle steel 72, and a second fiberglass backing plate 73; the angle steel 71 and the second support angle steel 72 are separated by the second fiberglass backing plate 73 and connected by bolts; the second support angle steel 72 is arranged on the tank body 5; the pillow beam longitudinal support member 10 has the same structure as the longitudinal support member 7.

[0064] like Figure 16As shown, the head insulation fixing parts 16 include steel plates, bolts, and nuts. The bolts are pre-welded to the steel plates, which are connected to the tank body 5. The nuts fasten the head fixing strips 8 to the bolts, and the bolster insulation shell support angle pieces 14 are welded to the support plates of the tank body 5 through angle steel.

[0065] The installation process of the above embodiment is as follows:

[0066] First, pre-weld the supporting angles of the circumferential support members 6, longitudinal support members 7, bolster circumferential support members 9, and bolster longitudinal support members 10 to the tank body 5, and weld the bolster insulation shell supporting angle members 14 to the support plate of the tank body 5, as shown in FIG. Figure 4 、 Figure 16 As shown, the head insulation fixture 16 is welded to the head of the tank body 5. After the welding of the above components is completed, the aerogel insulation coating 18 is sprayed or brushed on the surface of the tank body 5, the annular support 6, the longitudinal support 7, the bolster annular support 9, and the bolster longitudinal support 10 to form a first layer of insulation.

[0067] Then, after laying the aerogel insulation felt 17 on the tank body 5, the angle steel and fiberglass pads of the annular support 6, longitudinal support 7, bolster annular support 9, and bolster longitudinal support 10 are assembled by bolt connection, and the head fixing strip 8 is installed at the head insulation fixing part 16, and then the aerogel insulation felt 17 is fixed to form a second insulation layer.

[0068] The head insulation shell 1, the annular insulation shell 4, and the fourth bolster insulation shell 15 are overlapped on the annular support 6 and the longitudinal support 7. A certain welding gap is left on the support between the two head insulation shells 1, multiple annular insulation shells 4, and the fourth bolster insulation shell 15, and the assembly of the head insulation shell 1, the annular insulation shell 4 and the fourth bolster insulation shell 15 is completed by welding.

[0069] Then, weld the first bolster insulation shell 11 to the annular support 6 and the angle steel of the bolster annular support 9; Figure 5 As shown, the second bolster insulation shell 12 is overlapped and welded onto the first bolster insulation shell 11. Finally, the third bolster insulation shell 13 is overlapped and welded onto the first and second bolster insulation shells 11, 12. Finally, the first and second bolster insulation shells 11, 12, and bolster insulation shell support angle pieces 14 are welded together.

[0070] Finally, the longitudinal pressure strips 3 and the annular pressure strips 2 are welded to the joints of the two head insulation shells 1, multiple annular insulation shells 4, the first bolster insulation shell 11, the second bolster insulation shell 12, the third bolster insulation shell 13 and the fourth bolster insulation shell 15 with the support.

Claims

1. A heat preservation device for a large-volume, heavy-load tank truck, characterized by: It comprises two head insulation shells (1), annular beadings (2), longitudinal beadings (3), a plurality of annular insulation shells (4) and two groups of bolster insulation shells; The two head insulation shells (1) are respectively arranged on the outer surfaces of the two heads of the tank truck through an annular support member (6); The plurality of annular heat-insulating shells (4) are arranged on the tank body (5) of the tank truck via annular supports (6) and longitudinal supports (7), and are located between the two end heat-insulating shells (1); The circumferential beading (2) and the longitudinal beading (3) are arranged on the outer surfaces of the head insulation shell (1) and the plurality of circumferential insulation shells (4); The bolster insulation shell is arranged at a position relative to the tank body (5) and the bolster, and the bolster insulation shell is located between the annular insulation shell (4) and the head insulation shell (1); The outer surface of the tank body (5) is coated with an aerogel thermal insulation coating (18) to form a first thermal insulation layer; Aerogel insulation felt (17) is provided between the two end insulation shells (1) and the tank body (5), between the plurality of annular insulation shells (4) and the tank body (5), and between the two groups of bolster insulation shells and the tank body (5), forming a second insulation layer; The bolster thermal insulation shell comprises a first bolster thermal insulation shell (11), two second bolster thermal insulation shells (12), a third bolster thermal insulation shell (13) and a fourth bolster thermal insulation shell (15); the first bolster thermal insulation shell (11), the two second bolster thermal insulation shells (12), the third bolster thermal insulation shell (13) and the fourth bolster thermal insulation shell (15) are all arranged at the bottom of the tank body (5) through a bolster circumferential support member (9), a bolster longitudinal support member (10) and a bolster thermal insulation shell support angle member (14); and aerogel thermal insulation cotton felt (17) is arranged between the first bolster thermal insulation shell (11), the second bolster thermal insulation shell (12), the third bolster thermal insulation shell (13) and the fourth bolster thermal insulation shell (15) and the tank body (5).

2. The heat preservation device for a large-volume, heavy-load tank truck according to claim 1, characterized in that: The aerogel insulation felt (17) between the two head insulation shells (1) and the head of the tank body (5) is fixedly connected via a head fixing strip (8) and a head insulation fixing piece (16), and the head fixing strip (8) is perpendicular to the head insulation fixing piece (16); The aerogel insulation felt (17) between the annular insulation shell (4) and the tank body (5) is fixedly connected via an annular support member (6) and a longitudinal support member (7); The aerogel insulation felt (17) between the first bolster insulation shell (11), the two second bolster insulation shells (12), the third bolster insulation shell (13), and the fourth bolster insulation shell (15) and the tank body (5) is fixedly connected via a bolster circumferential support member (9), a bolster longitudinal support member (10), and a bolster insulation shell support angle member (14).

3. The heat preservation device for a large-volume, heavy-load tank truck according to claim 2, characterized in that: The annular support member (6) comprises an arc-shaped angle steel (61), a first supporting angle steel (62), and a first glass fiber reinforced plastic backing plate (63); The arc-shaped angle steel (61) and the first supporting angle steel (62) are separated by a first glass fiber reinforced plastic pad (63) and connected by bolts; the first supporting angle steel (62) is arranged on the tank body (5); The bolster annular support member (9) has the same structure as the annular support member (6).

4. The heat preservation device for a large-volume, heavy-load tank truck according to claim 3, characterized in that: The longitudinal support member (7) comprises an angle steel (71), a second supporting angle steel (72), and a second glass fiber reinforced plastic backing plate (73); The angle steel (71) and the second supporting angle steel (72) are separated by a second glass fiber reinforced plastic backing plate (73) and connected by bolts; the second supporting angle steel (72) is arranged on the tank body (5); The bolster longitudinal support member (10) has the same structure as the longitudinal support member (7).

5. The heat preservation device for a large-volume, heavy-load tank truck according to claim 4, characterized in that: The head heat-insulating fixing member (16) comprises a steel backing plate, bolts, and nuts, wherein the bolts are pre-welded on the steel backing plate; the steel backing plate is connected to the tank body (5); The nut fastens the head fixing strip (8) onto the bolt.

6. The heat preservation device for a large-volume, heavy-load tank truck according to claim 5, characterized in that: The bolster heat-insulating shell supporting angle piece (14) is welded to the tank body (5).

7. The heat preservation device for a large-volume, heavy-load tank truck according to claim 6, characterized in that: The head insulation shell (1) is made of conical carbon steel plates; The circumferential beading strip (2) and the longitudinal beading strip (3) are both 80 mm wide and 3 mm thick, and are made of flat steel plates. The annular heat-insulating shell (4) has a thickness of 3 mm and is made of carbon steel plate; The thickness of the first bolster thermal insulation shell (11), the second bolster thermal insulation shell (12), the third bolster thermal insulation shell (13), and the fourth bolster thermal insulation shell (15) are all 3 mm, and are made of carbon steel plates.

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