Infrared camouflage pipeline

Abstract

An infrared camouflage pipeline belongs to the technical field of camouflage. The infrared camouflage pipeline comprises a coil pipe, a coil-free pipe section, a water outlet pipe and a water inlet pipe; the coil pipe is in a hollow cylinder shape formed by coiling a hollow pipe, and the whole coil pipe is in an S shape. The hollow pipe extending from the lower part of the coil pipe is a water inlet pipe, and the hollow pipe extending from the upper part of the coil pipe is a water outlet pipe; the water outlet pipe is arranged on the outer side of the coil pipe, is positioned on the same side of the coil pipe and is flush with the water inlet pipe; the coil pipe is coated with a multi-layer composite structure, and the multi-layer composite structure sequentially comprises aluminum-foil paper and a surface camouflage layer from inside to outside; cooling liquid enters from the water inlet pipe, passes through the coil pipe and is discharged from the water outlet pipe. According to the utility model, the infrared radiation temperature of the opening part of the exhaust flue is reduced through the hollow coil pipe with a high heat conductivity coefficient and the manner of cooling the wall surface of the coil pipe in real time by introducing the cooling liquid into the coil pipe, so that the infrared camouflage of the opening part of the exhaust flue is realized.

Description

Technical Field

[0001] This invention relates to the field of camouflage technology, specifically to an infrared camouflage pipe. Background Technology

[0002] In underground engineering, diesel generator sets generate a large amount of flue gas and heat during the exhaust process. Existing smoke suppression spray technology cannot completely solve the problem of infrared feature exposure caused by long-term smoke exhaust. Although the flue gas becomes relatively pure after smoke suppression spray, it still has a high temperature. The flue gas continuously heats the exhaust pipe opening, resulting in the exposure of infrared features at the exhaust pipe opening.

[0003] Normally, the infrared radiation temperature at the exhaust duct opening is much higher than the surrounding environment's radiation temperature due to the heating of the flue gas. During infrared detection by the enemy, this can easily expose the infrared signature. Therefore, reducing the infrared radiation temperature at the exhaust duct opening is an important means of reducing the infrared exposure of the exhaust duct opening. Summary of the Invention

[0004] This invention aims to solve the problem of infrared signature exposure at the exhaust duct opening during the exhaust process of underground engineering projects. The invention employs a multi-layered composite pipe structure. The infrared camouflage pipe, from the inside out, includes a coil, aluminum foil, a surface camouflage layer, a water outlet pipe, a coilless section, and a water inlet pipe. The coil is a hollow cylinder formed by coiling stainless steel tubing, with the overall coil shape resembling an "S". Aluminum foil covers the outer surface of the coil for sealing. The surface camouflage layer consists of multiple functional structures, including a faux bark material and an insulation layer, with the insulation layer sprayed onto the inner layer of the faux bark material. Coolant enters through the water inlet pipe, passes through the inside of the coil, and exits through the water outlet pipe. This invention reduces the infrared radiation temperature at the exhaust duct opening by using a hollow coil with high thermal conductivity and circulating coolant inside to cool the coil wall in real time, thus achieving infrared camouflage at the exhaust duct opening.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An infrared camouflage pipe includes a coil, a coilless section, an outlet pipe, and an inlet pipe. The coil is a hollow cylinder formed by coiling hollow tubes. The hollow tube extending from the bottom of the coil is the inlet pipe, and the hollow tube extending from the top of the coil is the outlet pipe. The outlet pipe is located on the outside of the coil, on the same side as the coil, and flush with the inlet pipe. The coil is covered with a multi-layer composite structure, which, from the inside out, includes aluminum foil and a surface camouflage layer.

[0007] Furthermore, the coil is formed by winding a stainless steel tube into a hollow cylindrical shape with an inner diameter, and the pitch of the coil is the outer diameter of the stainless steel tube.

[0008] Furthermore, the stainless steel tube is a hollow tube with an outer diameter of 6 mm and a wall thickness of 0.5 mm.

[0009] Furthermore, the coil is S-shaped; the outlet pipe bends in an S-shape along with the coil; when the coil is bent into an S-shape, the maximum observable range of the inner wall of the coil is A. The inner wall of the section without the coil cannot be observed when looking inward from the opening of the coil, thus avoiding the inner wall of the section without the coil being detected by the infrared detector.

[0010] Furthermore, the distance from which the inlet pipe extends out of the coil is 20cm to 60cm, and the distance from which the outlet pipe extends out of the coil is 60cm to 200cm. The inlet and outlet pipes extend out of the coil to facilitate water circuit connection.

[0011] Furthermore, the aluminum foil used is a 0.1mm adhesive aluminum foil sticker, which is adhered to the outer surface of the coil to seal the coil and prevent flue gas from escaping from the gaps in the coil and directly contacting the surface camouflage layer.

[0012] Furthermore, the surface camouflage layer is composed of a multi-layer functional structure, which includes a fake bark material and a heat insulation layer. The heat insulation layer is sprayed on the inner layer of the fake bark material. The heat insulation layer is used to reduce heat transfer between the coil and the fake bark. The fake bark is used to simulate the environmental characteristics of a forest background.

[0013] Furthermore, the surface camouflage layer includes a fake bark material and a low-emissivity coating layer. The low-emissivity coating layer is sprayed on the outer layer of the fake bark material and is used to reduce the infrared exposure characteristics of the fake bark in the background environment.

[0014] Furthermore, the coilless section is a hollow cylindrical structure formed by a surface camouflage layer, and the outer diameter of the coilless section is the same as that of the coil.

[0015] Furthermore, the thickness of the insulation layer is between 2cm and 10cm. For flue gas pipes without coils connected to infrared camouflage, when the flue gas temperature exceeds 150°C and the continuous use time exceeds 1 day, an additional insulation layer should be added to the inner layer of the surface camouflage layer.

[0016] Coolant is introduced into the stainless steel tube through the inlet pipe, flowing upwards along the tube and exiting through the outlet pipe. When flue gas enters from the section without the coil, it flows through the annular channel of the coil and exits from the top end. The temperature of the inner wall of the coil is maintained by adjusting the temperature of the coolant. When the temperature difference between the inner wall of the coil affected by the flue gas and the background environment is ≤4K, the temperature of the inner wall of the coil is close to the temperature of the background environment, thereby achieving the purpose of no infrared feature exposure during flue gas emission and achieving the effect of infrared camouflage at the exhaust port.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] (1) This invention can be directly used for the emission of high-temperature flue gas. While ensuring the smooth emission of flue gas, the temperature difference between the inner wall of the coil affected by the flue gas and the background environment is maintained by adjusting the temperature of the coolant.

[0019] (2) The infrared camouflage pipe of the present invention can ensure that the infrared radiation temperature difference between the smoke outlet and the surrounding background is always kept within 4K, thereby achieving the purpose of no infrared feature exposure during the smoke emission process and achieving the effect of infrared camouflage of the smoke outlet.

[0020] (3) The present invention can change the performance of the infrared camouflage pipe by adjusting the temperature of the coil coolant, changing the material, diameter and wall thickness of the coil, and adding a heat insulation layer, so that the infrared camouflage pipe can be used in different environmental areas and different flue gas temperature scenarios to adjust the average infrared radiation temperature of the flue gas outlet of the infrared camouflage pipe.

[0021] (4) The coil of the present invention can be processed into rings of different diameters, and is suitable for use and installation of exhaust pipes of different diameters;

[0022] (5) The present invention simulates the surrounding scene through the surface camouflage layer, which can be integrated into the usage scenario and further realize the effect of optical camouflage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the infrared camouflage smoke tube of the present invention;

[0024] Figure 2 This is a schematic diagram of the coil structure of the present invention;

[0025] Figure 3 This is a schematic diagram showing the observation area for viewing the inner wall of the coil from the coil opening.

[0026] Figure 4 These are comparison diagrams showing the effects of the present invention.

[0027] In the diagram: 1 is the coil; 2 is the aluminum foil; 3 is the surface camouflage layer; 4 is the water outlet pipe; 5 is the section without the coil; 6 is the water inlet pipe; 7 is the flue gas. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the utility model will be described in further detail below with reference to the accompanying drawings.

[0029] like Figure 1As shown, an infrared camouflage pipe includes a coil 1, a coilless section 5, an outlet pipe 4, and an inlet pipe 6. The coil 1 is a hollow cylinder formed by coiling hollow tubes. The hollow tube extending from the bottom of the coil 1 is the inlet pipe 6, and the hollow tube extending from the top of the coil 1 is the outlet pipe 4. The outlet pipe 4 is located on the outside of the coil 1, on the same side as the coil 1, and flush with the inlet pipe 6. The coil 1 is covered with a multi-layer composite structure, which includes aluminum foil 2 and a surface camouflage layer 3 from the inside out.

[0030] The coil 1 is a hollow cylinder with an inner diameter of 130mm formed by winding a stainless steel tube. The pitch of the coil 1 is the outer diameter of the stainless steel tube. The stainless steel tube is a hollow tube with an outer diameter of 6mm and a wall thickness of 0.5mm. To prevent the inner wall of the coilless section 5 from being detected by the infrared detector, the coil 1 is shaped like an "S". When the coil 1 is bent into an "S" shape, the maximum observable range of the inner wall of the coil 1 is A. Observing from the opening of the coil inward, the inner wall of the coilless section 5 cannot be observed, thus avoiding detection by the infrared detector. Figure 3 As shown; the stainless steel pipe extending from the lower side of coil 1 is the inlet pipe 6 of coil 1, and the stainless steel pipe extending from the upper side of coil 1 is the outlet pipe 4 of coil 1; the inlet pipe 6 extends 20cm to 60cm from coil 1, and the outlet pipe 4 extends 60cm to 200cm from coil 1. The inlet pipe 6 and outlet pipe 4 extend from coil 1 to facilitate water connection; the outlet pipe 4 is on the outside of coil 1 and follows the coil 1 in an "S" shaped bend, and the outlet pipe 4 is flush with the inlet pipe 6 on the same side of coil 1. Figure 2 As shown.

[0031] The aluminum foil 2 is made of 0.1mm adhesive aluminum foil paper. The aluminum foil 2 is wrapped around the outer surface of the coil 1 to seal the coil 1 and prevent the flue gas from escaping from the gaps in the coil 1 and coming into direct contact with the surface camouflage layer 3.

[0032] The surface camouflage layer 3 is composed of a multi-layer functional structure, which includes a fake bark material and a heat insulation layer. The heat insulation layer is sprayed on the inner layer of the fake bark material. The heat insulation layer is used to reduce heat transfer between the coil 1 and the fake bark. The fake bark is used to simulate the environmental characteristics of a forest background.

[0033] The multi-layer functional structure also includes a fake bark material and a low-emissivity coating layer. The low-emissivity coating layer is sprayed on the outer layer of the fake bark material to reduce the infrared exposure characteristics of the fake bark in the background environment.

[0034] The coilless section 5 is a hollow cylindrical structure formed by the surface camouflage layer 3, and the outer diameter of the coilless section 5 is the same as that of the coil 1.

[0035] When the coilless section 5 is connected to any type of flue gas duct that requires infrared camouflage, and the flue gas temperature exceeds 150℃ and the continuous use time exceeds 1 day, an additional heat insulation layer should be added to the inner layer of the surface camouflage layer 3, with a thickness between 2cm and 10cm.

[0036] Coolant is introduced into the stainless steel tube through the inlet pipe 6, flowing upwards along the stainless steel tube of the coil 1 and exiting through the outlet pipe 4. When flue gas 7 enters from the section without the coil 5, it flows through the annular channel of the coil 1 and exits from the top end of the coil 1. The temperature of the inner wall of the coil 1 is maintained by adjusting the coolant temperature. When the temperature difference between the inner wall of the coil 1 affected by the flue gas 7 and the background environment is ≤4K, the temperature of the inner wall of the coil 1 is close to the background environment temperature, thus achieving the goal of no infrared signature exposure during flue gas emission and achieving infrared camouflage at the exhaust port.

[0037] Compared with existing technologies, this invention has outstanding infrared radiation temperature control effect, such as... Figure 4 As shown, the infrared camouflage pipe of the present invention can ensure that the infrared radiation temperature difference between the exhaust port and the surrounding background is always kept within 4K, thereby achieving the purpose of no infrared feature exposure during the exhaust process and achieving the effect of infrared camouflage of the exhaust port.

Claims

1. An infrared camouflage pipe, characterized in that, The infrared camouflage pipe includes a coil, a coilless section, an outlet pipe, and an inlet pipe. The coil is a hollow cylinder formed by coiling hollow tubes. The hollow tube extending from the bottom of the coil is the inlet pipe, and the hollow tube extending from the top of the coil is the outlet pipe. The outlet pipe is located on the outside of the coil, on the same side as the coil, and flush with the inlet pipe. The coil is covered with a multi-layer composite structure, which includes aluminum foil and a surface camouflage layer from the inside out.

2. The infrared camouflage pipe according to claim 1, characterized in that, The coil is a hollow cylinder formed by winding a stainless steel tube, and the pitch of the coil is the outer diameter of the stainless steel tube.

3. The infrared camouflage pipe according to claim 2, characterized in that, The stainless steel pipe is a hollow pipe with an outer diameter of 6mm and a wall thickness of 0.5mm.

4. The infrared camouflage pipe according to claim 1, characterized in that, The coil is S-shaped; the outlet pipe follows the S-shaped bend of the coil.

5. The infrared camouflage pipe according to claim 1, characterized in that, The distance from which the inlet pipe extends out of the coil is 20cm to 60cm, and the distance from which the outlet pipe extends out of the coil is 60cm to 200cm.

6. The infrared camouflage pipe according to claim 1, characterized in that, The aluminum foil used is an adhesive aluminum foil sticker, which is adhered to the outer surface of the coil.

7. The infrared camouflage pipe according to claim 1, characterized in that, The surface camouflage layer consists of a multi-layered functional structure, which includes a fake bark material and a heat insulation layer, with the heat insulation layer sprayed onto the inner layer of the fake bark material.

8. The infrared camouflage pipe according to claim 1, characterized in that, The surface camouflage layer includes a fake bark material and a low-emissivity coating layer, with the low-emissivity coating layer sprayed on the outer layer of the fake bark material.

9. The infrared camouflage pipe according to claim 1, characterized in that, The coilless section is a hollow cylindrical structure formed by a surface camouflage layer, and the outer diameter of the coilless section is the same as that of the coil.

10. An infrared camouflage pipe according to claim 7, characterized in that, The thickness of the insulation layer is between 2cm and 10cm.

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