Cylinder insulation tube

Abstract

To provide a cylinder heat-insulating cylinder equipped with a means for efficiently keeping a gas cylinder warm even when the outside temperature is low and usable for a gas cylinder having a diameter smaller than that of a normal size. [Solution] A cylinder heat-insulating cylinder (100) comprises a cylinder heat-insulating cylinder body (10) that opens and closes from side to side to surround the outer periphery of a gas cylinder and is attached to the gas cylinder, and a tubular tube (20) that forms a flow path on the inner wall surface of the cylinder heat-insulating cylinder body (10) and is installed so as to fit tightly against the gas cylinder. The cylinder heat-insulating cylinder body (10) is equipped with an opening / closing means for opening and closing the cylinder body (10) into a semicircular left section and a semicircular right section, a fixing means for closing and fixing the left and right sections, and an installation means (15) for installing the tube (20). A thermal insulating material (30) is installed on the inner wall surface, and the tube (20) is installed via the thermal insulating material (30). This thermal insulating material (30) may be a 2-5 mm thick insulating adhesive tape or sheet.

Description

[Technical Field]

[0001] The present invention relates to a cylinder heat-insulating tube for keeping a gas cylinder warm, and more particularly to a cylinder heat-insulating tube that can efficiently keep a gas cylinder warm even when the outside temperature is low. [Background technology]

[0002] High-pressure liquefied gas cylinders are filled with a gaseous liquid (e.g., ammonia) at high pressure, and the liquid vaporizes and is supplied from the gas cylinder. When gas is used continuously in low ambient temperatures, the heat of vaporization becomes insufficient, and the gas pressure (internal pressure) inside the cylinder gradually decreases. This causes the problem that the liquefied gas inside the cylinder cannot be vaporized to the last drop and used, resulting in the liquid remaining inside the container. For this reason, there is a demand to use up as much of the gas cylinder as possible, especially in factories that use many gas cylinders over long periods of time.

[0003] In order to use up all the liquefied gas in the container, it is necessary to heat the gas cylinder to a temperature below the legal limit (below 40°C) to promote vaporization. Under the High Pressure Gas Safety Act, the use of open flames within 2m to 8m of flammable gases is prohibited depending on the type and amount of gas, so a method of keeping gas cylinders warm using hot water rather than electricity has been proposed.

[0004] Patent Document 1 discloses a cylinder heat-insulating tube that includes a cylinder heat-insulating tube body that opens and closes to the left and right to surround the outer periphery of a gas cylinder and is attached to the cylinder, and a tube that is installed to form a flow path on the inner wall surface of the cylinder heat-insulating tube body. This cylinder heat-insulating device can be easily attached to a gas cylinder. Furthermore, the use of a tube allows it to be tightly attached to the gas cylinder, allowing the gas cylinder to be efficiently kept warm. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6150187 Summary of the Invention [Problem to be solved by the invention]

[0006] The body of the gas cylinder insulator in Patent Document 1 is made of a metal material such as stainless steel, which has high thermal conductivity and is easily affected by the outside air. For example, when the outside temperature is low in winter, the body of the gas cylinder insulator cools, and the tube installed in contact with the body also cools. As the temperature of the body drops, the temperature of the hot water in the tube also drops, making it take longer to sufficiently insulate the gas cylinder and reducing thermal efficiency. Therefore, there is a need for a gas cylinder insulator that includes a means for preventing a drop in the temperature of the hot water in the tube and that can efficiently insulate the gas cylinder.

[0007] Furthermore, the cylinder heat-insulating tube in Patent Document 1 has a fixing means that allows the diameter of the cylinder to be adjusted to a certain extent. This allows a cylinder heat-insulating tube manufactured for, for example, a 50 kg gas cylinder (diameter approximately 370 mm) to fit tightly to the gas cylinder. However, when used with a special-size gas cylinder with a smaller diameter than normal (for example, a diameter of 362 mm), it becomes difficult to fit the cylinder heat-insulating tube completely to the gas cylinder due to the small diameter. This makes it difficult to efficiently keep the gas cylinder warm.

[0008] In view of the above problems, the present invention aims to provide an improved cylinder heat-insulating cylinder of Patent Document 1, which is equipped with a means for efficiently keeping the gas cylinder warm even when the outside temperature is low, and which can be used for gas cylinders with diameters smaller than normal dimensions. [Means for solving the problem]

[0009] In order to solve the above problems, the cylinder insulated cylinder of the present invention comprises a cylinder insulated cylinder main body that opens and closes to the left and right to surround the outer surface of the gas cylinder and is attached to the gas cylinder, and a tubular tube that forms a flow path on the inner wall surface of the cylinder insulated cylinder main body and is installed so as to fit tightly against the gas cylinder, and the cylinder insulated cylinder main body is equipped with an opening and closing means that opens and closes the cylinder insulated cylinder main body into a semicircular left part and a semicircular right part, a fixing means that closes and fixes the left part and the right part, and an installation means that installs the tube, and an insulating material is installed on the inner wall surface, and the tube is installed via the insulating material. The heat insulating material may be a heat insulating adhesive tape or sheet having a thickness of 2 to 5 mm. [Effects of the Invention]

[0010] The cylinder heat-insulating tube of the present invention can efficiently keep a gas cylinder warm even when the outside temperature is low, and can be used for gas cylinders with diameters smaller than normal. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a cylinder heat insulation cylinder according to one embodiment of the present invention attached to a cylinder. FIG. [Figure 2] 2A is a plan view of the cylinder heat insulation tube in FIG. 1 in a closed state, and FIG. 2B is a plan view of the cylinder heat insulation tube in an open state. [Figure 3] 2A and 2B are a front view and a rear view, respectively, of the cylinder heat insulation tube of FIG. 1 after it has been attached to the cylinder. [Figure 4] 2A and 2B are developments of the left and right parts of the cylinder heat insulation tube in FIG. 1, respectively, in which a heat insulating material (strip-shaped) is installed on the inner wall surface. [Figure 5] 2A and 2B are developments of the left and right parts of the cylinder heat insulation tube in FIG. 1, respectively, in which a heat insulating material (sheet-like) is installed on the inner wall surface. [Figure 6] 2 is an explanatory diagram showing the configuration of a cylinder heat insulation device equipped with the cylinder heat insulation tube of FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention (hereinafter referred to as examples) will be described with reference to the drawings. In the following drawings, common parts are given the same reference numerals, and duplicated explanations of parts with the same reference numerals will be omitted.

[0013] [Configuration of the cylinder heat insulation tube 100] The configuration of a cylinder heat-insulating cylinder according to one embodiment of the present invention will be described with reference to Figures 1 to 5. Figure 1 is a perspective view of a cylinder heat-insulating cylinder 100 after it has been attached to a cylinder. The cylinder heat-insulating cylinder 100 is made up of a cylinder heat-insulating cylinder main body 10 that opens and closes to the left and right to surround the outer periphery of the gas cylinder 50 and is attached to the gas cylinder 50, and a tubular tube 20 that forms a flow path on the inner wall surface of the cylinder heat-insulating cylinder main body 10 and is installed so as to be in close contact with the gas cylinder. A thermal insulator 30 is installed on the inner wall surface, and the tube 20 is installed with the thermal insulator 30 interposed therebetween.

[0014] FIG. 2 shows a plan view (A) of a cylinder insulated cylinder body 10 according to one embodiment of the present invention in a closed state and a plan view (B) of the cylinder insulated cylinder body 10 in an open state. FIG. 2 shows the state before a tube 20 is installed in the cylinder insulated cylinder body 10. A thermal insulator 30 is installed on the inner wall surface of the cylinder insulated cylinder body 10. As shown in FIG. 2(A), the cylinder insulated cylinder body 10 has a generally cylindrical shape when closed by fastening means 11, and has an inner diameter generally equal to the outer diameter of the cylinder. As shown in FIG. 2(B), the cylinder insulated cylinder body 10 is opened wide to the left and right by opening / closing means 14 that opens and closes on the left and right sides, and is configured to surround a gas cylinder placed inside. Fixing portions 12 and 13 for fixing the tube 20 may be formed on the outer wall surface of the cylinder insulated cylinder body 10.

[0015] Fig. 3(A) is a front view of the cylinder heat-insulating cylinder 100 after it has been attached to the gas cylinder 50, and Fig. 3(B) is a rear view. Fig. 3(A) corresponds to the view seen from the arrow BB in Fig. 2(A) after the tube 20 has been installed in the cylinder heat-insulating cylinder main body 10 and attached to the gas cylinder 50, and Fig. 3(B) corresponds to the view seen from the arrow AA.

[0016] As shown in FIG. 3(A), the cylinder heat-insulating tube body 10 surrounds the outer periphery of the gas cylinder 50 and is closed by a fastening means 11 that fastens the left and right parts together. The fastening means 11 provided on the outer surface of the cylinder heat-insulating tube body 10 can be a known fastening device such as a snap lock (or snap lock), buckle, or chain. In this embodiment, as shown in FIG. 3(A), a snap lock is used in which an engaging portion 112 is hooked onto a hook-shaped engaged portion 111 and fastened by a tension spring force. In particular, a snap lock that can adjust the diameter of the cylinder heat-insulating tube 100 is used as the fastening means 11.

[0017] In this embodiment, the snap lock is a known snap lock that can be adjusted in length up to about 2 cm by rotating the engaging portion 112, and the snap lock has an engagement portion 112 that can be manually tightened or loosened. By using a snap lock that can adjust the diameter of the cylinder insulated tube 100, the cylinder insulated tube 100 can be secured so that the tube 20 installed on its inner wall is tightly attached to the cylinder. While the snap lock can adjust the diameter of the cylinder insulated tube 100 to some extent, as mentioned above, when used with gas cylinders of special dimensions, the snap lock alone is insufficient; adjustment is required using the insulating material 30 installed on the inner wall.

[0018] In this embodiment, a snap lock capable of adjusting the diameter of the cylinder insulated cylinder 100 is used as the fixing means 11, but the fixing device is not limited to this and any fixing device may be used as long as it can align and fix the left and right parts of the cylinder insulated cylinder main body 10. Also, in this embodiment, as shown in Figures 1 and 3(A), the fixing means 11 are installed in two places, but the number is not limited to two and any number of fixing means may be installed depending on the size of the insulated cylinder main body 10.

[0019] As shown in FIG. 3(B), the cylinder warming barrel body 10 is opened wide to the left and right by an opening / closing means 14 that opens and closes a semicircular left section and a semicircular right section. The opening / closing means 14 may be of any type, for example, a hinge. In this embodiment, since the left and right sections of the cylinder warming barrel 100 are configured to surround the cylinder, the opening / closing means 14 is a hinge that opens 180 degrees or more to the left and right, as shown in FIG. 2(B). Also, in this embodiment, the opening / closing means 14 are installed in two locations, similar to the fixing means 11, but the number of locations is not limited to two and may be any number.

[0020] The cylinder heat-insulating cylinder body 10, fixing means 11, and opening / closing means 14 can be made of stainless steel or other materials with excellent corrosion resistance. When used with a 50 kg gas cylinder, for example, the cylinder heat-insulating cylinder body 10 can be manufactured in a cylindrical shape with a height of 1116 mm, an outer diameter of 406 mm, and a wall thickness of 1.6 mm. When used with gas cylinders of other sizes, it can be manufactured in a size that suits the cylinder.

[0021] 4(A) and 5(A) are developments of the left portion of the cylinder insulated tube 100, and FIGS. 4(B) and 5(B) are developments of the right portion of the cylinder insulated tube 100. FIGS. 4(A) and 5(A) correspond to the XX arrow view of FIG. 2(B) after the tube 20 has been installed in the cylinder insulated tube body 10, and FIGS. 4(B) and 5(B) correspond to the YY arrow view. FIGS. 4(A) and (B) show an example in which a strip-shaped insulating material 30 is installed on the inner wall surface of the cylinder insulated tube 100, and FIGS. 5(A) and (B) show an example in which a sheet-shaped insulating material 30 is installed on the inner wall surface of the cylinder insulated tube 100. The insulating material 30 may be in sheet or strip (tape) form as long as it can be installed on the inner wall surface. The insulating material 30 has a thickness of approximately 2 to 5 mm. The heat insulating material 30 may be, for example, foamed resin such as foamed polyethylene, foamed polypropylene, or foamed polystyrene, or a sheet made of insulating glass wool, rock wool, or aerogel.

[0022] As the strip-shaped heat insulating material 30 in Figures 4(A) and (B), for example, a heat insulating adhesive tape containing foamed polyethylene is used. The heat insulating adhesive tape used has a strip width of 80 to 100 mm and a thickness of 2 to 5 mm. By using heat insulating adhesive tape as the heat insulating material 30, it can be easily installed on the interior wall surface. In the example shown in Figures 4(A) and (B), the heat insulating adhesive tapes are attached horizontally, but they may also be attached vertically.

[0023] As the heat insulating material 30 of the sheet in Figures 5(A) and (B), a heat insulating adhesive sheet containing foamed polyethylene can be used, similar to the heat insulating adhesive tape in Figure 4. The heat insulating adhesive sheet to be used is 2 to 5 mm thick. By using a heat insulating adhesive sheet as the heat insulating material 30, it is easier to install it on the inner wall surface than using a heat insulating adhesive tape, and it is suitable for large cylinder heat insulation tubes 100. In the example shown in Figures 5(A) and (B), one heat insulating adhesive sheet is attached to each of the left and right sides, but multiple small heat insulating adhesive sheets may also be attached. The heat insulating material 30 is not limited to the heat insulating adhesive tape and heat insulating adhesive sheet of this embodiment, and any material may be used.

[0024] The tube 20 is installed after the insulation material 30 is installed on the inner wall surface of the cylinder warming tube body 10. Note that wrapping insulating adhesive tape around the tube 20 is not performed because it is time-consuming and makes it difficult for the heat from the tube 20 to be transferred to the gas cylinder 50, reducing thermal efficiency. By installing the tube 20 via the insulation material 30 in this way, the tube 20 and the cylinder warming tube body 10 do not come into direct contact with each other, so even if the cylinder warming tube body 10 is cooled by the influence of outside air, the tube 20 can be prevented from being cooled. This prevents a decrease in the temperature of the hot water in the tube 20 and increases thermal efficiency. Furthermore, installing the insulation material 30 brings the tube 20 and the gas cylinder 50 into closer contact, allowing the heat from the tube 20 to be transferred more efficiently to the gas cylinder 50.

[0025] The cylinder warming barrel body 10 is provided with a plurality of installation means 15 for installing the tubes 20, and the installation means 15 allows the tubes 20 to be installed via the insulating material 30. Installing the tubes 20 via the insulating material 30 prevents the insulating material 30 from peeling off, and allows the insulating material 30 to be more securely fixed to the inner wall surface. The tubes 20 can also be installed detachably so that they can be removed even after being fixed to the cylinder warming barrel body 10. Installing the tubes 20 detachably allows the hot water inside the tubes 20 to be easily removed, and also allows the tubes 20 to be replaced before they deteriorate.

[0026] The tubes 20 are installed on the inner wall surface of the cylinder warming tube body 10 to form a single flow path. To ensure that the contact surface of the tubes 20 is in close contact with the gas cylinder 50 for efficient heating, it is preferable to install the tubes 20 evenly on both the left and right sides of the inner wall surface of the cylinder warming tube body 10. For example, as shown in Figures 4 and 5, the tubes 20 can be installed symmetrically and evenly on both the left and right sides of the cylinder warming tube body 10 and connected using joints 22 (e.g., hexagonal sockets) and connecting tubes 23 to form a single flow path. Arranging the tubes 20 in this manner allows the gas cylinder 50 to be heated uniformly. Note that the arrangement of the tubes 20 depends on the allowable bending radius when the tubes 20 are made of, for example, a flexible hose. The number of tubes 20 used is not limited; one or two tubes 20 may be used, or four or more tubes 20 may be used to form a single flow path. In this embodiment, the tubes 20 are arranged in a spiral shape on the left and right sides as shown in FIGS. 4 and 5, but the present invention is not limited to this arrangement, and different arrangements may be used depending on the type of material of the tubes 20.

[0027] In this embodiment, as described above, two tubes 20, a joint 22, and a connecting tube 23 are connected to form one flow path. As shown in FIGS. 4 and 5, holes 16 through which the connecting tubes 23 pass may be provided on the left and right sides of the insulated tube body 10, and the connecting tubes 23 may be installed on the outside of the cylinder insulated tube body 10 by passing them through the holes 16. By installing the connecting tubes 23 in this manner, the tubes 23 are not pinched when opening and closing the insulated tube body 10, making them easy to handle. In addition, the state of the hot water circulating inside the tubes 23 can be observed from the outside. Furthermore, fixing parts 13 (see FIGS. 2 and 3(A)) may be provided on the outer wall surface of the cylinder insulated tube body 10 to fix the connecting tubes 23 and the joints 22.

[0028] The inlet 21 and outlet 24 of the tube 20, through which hot water flows in and out, are at both ends of the tube 20, and may be located on either the left or right side. The inlet 21 and outlet 24 may be located on the inner wall surface of the thermally insulated cylinder body 10, or, as shown in Figures 3(B) and 4 and 5, holes 17 through which the inlet 21 and outlet 24 of the tube 20 pass may be provided in the thermally insulated cylinder body 10, and the inlet 21 and outlet 24 may pass through the holes and be located on the outer wall surface of the cylinder thermally insulated cylinder body 10. By locating the inlet 21 and outlet 24 of the tube 20 on the outer wall surface of the cylinder thermally insulated cylinder body 10, it becomes easier to connect to a hot water circulation device and to allow hot water to flow. Furthermore, in order to fix the inlet portion 21 and outlet portion 24 of the tube 20, a fixing portion 12 (see Figures 2 and 3(B)) can be provided on the outer wall surface of the cylinder heat-insulating barrel body 10 to pass the tube 20 through and fix the tube 20 and fitting 22.

[0029] The installation means 15 for installing the tubes 20 on the cylinder warming barrel body 10 can be, for example, a plastic cable tie fastener. In the case of Figures 4 and 5, the installation means 15 can be easily installed by providing a hole at the installation location of the tubes 20 on the cylinder warming barrel body 10. It is also preferable to use a band fastener that can be adjusted to fit the diameter of the tubes 20. For simplicity, only a portion of the installation means 15 is shown in Figures 3 to 5, but only the number of installation means 15 necessary to install the tubes 20 is used. In this embodiment, 44 installation means 15 are used, as shown in Figures 4 and 5.

[0030] The tube 20 may be any type of tube as long as it has good thermal conductivity and can carry hot water at a temperature below the legal limit (40°C or less). In the example shown in Figures 4 and 5, a flexible vinyl hose is used as the tube 20. This hose may be made of any material, such as soft vinyl chloride, silicone rubber, polyurethane resin, or nylon, but in this embodiment, soft vinyl chloride is used. Its dimensions are an inner diameter of 10 mm, an outer diameter of 16 mm, and a length of approximately 10 m, with an operating temperature range of -5°C to 60°C and a maximum operating pressure of 1 MPa. As described above, the cylinder heat-insulating tube 100 of the present invention is constructed.

[0031] [Configuration of the cylinder heat insulation device 300] Next, a cylinder warming device 300 equipped with the cylinder warming cylinder 100 of the present invention will be described. Fig. 6 is an explanatory diagram showing the configuration of the cylinder warming device 300 of this embodiment. The cylinder warming device 300 is composed of the cylinder warming cylinder 100 and a hot water circulating device 200 that is connected to the inlet 21 and outlet 24 of the tube 20 of the cylinder warming cylinder 100 and that circulates a fluid at a predetermined temperature through the tube 20.

[0032] As shown in Fig. 6, the hot water circulation system 200 includes at least a water tank 210, a heater 220, a pump 230, and piping 240. The water tank 210 is preferably one that can hold a predetermined amount of water and is surrounded by a heat insulating material that can keep the water warm for a predetermined period of time. The heater 220 may be a heater with a water temperature adjustment function. In this embodiment, a heater that can adjust the water temperature to 40°C or less is used.

[0033] The pump 230 can be a pump that draws up hot water from the water tank 210 and can obtain a predetermined discharge rate. For example, if the flow rate of the hot water flowing through the tube 20 of the cylinder insulated barrel 100 is to be maintained at 10 liters per minute, a pump 230 that draws up hot water so as to maintain that flow rate is used. The pump 230 is connected to the inlet 21 of the cylinder insulated barrel 100 via a pipe 240, and the outlet 24 of the cylinder insulated barrel 100 is connected to the water tank 210 via the pipe 240. The pipe 240 can be connected to the inlet 21 and the outlet 24 using joints (e.g., hexagonal sockets).

[0034] The water tank 210 is not limited to the water tank described above that stores water and keeps it warm, but may be a water tank with a built-in heater 220 and a temperature control function, or may further be a water tank with a built-in pump 230, or may be a water tank with a stirring function. Note that the power source used in the hot water circulation system 200 must be located at least the legal distance (2 m) from the gas cylinder 50, so the length of the piping 240 and the installation location of the hot water circulation system 200 are adjusted to maintain that distance. Furthermore, when multiple gas cylinders 50 are used, a cylinder heat-insulating tube 100 may be attached to each gas cylinder 50, and the hot water in the cylinder heat-insulating tube 100 may be circulated by a single hot water circulation system 200.

[0035] [How to use the cylinder warmer 300] Next, a method of using the cylinder warming device 300 will be described. Before starting to use the gas cylinder 50, the cylinder warming tube 100 is attached to the gas cylinder 50. As shown in FIG. 2(B), the cylinder warming tube 100 can be attached to the gas cylinder by opening it wide on the left and right sides using the opening / closing means 14 to surround the outer periphery of the gas cylinder 50, and then closing the left and right sides. At this time, the fixing means 11 is adjusted to close the left and right sides so that the tube 20 installed on the inner wall surface of the cylinder warming tube 100 is in close contact with the gas cylinder 50.

[0036] Thereafter, the cylinder warming cylinder 100 is connected to the hot water circulating device 200, and the hot water circulating device 200 is turned on and operated to circulate hot water at a temperature of 40°C or less (for example, 30°C) through the cylinder warming cylinder 100. Before attaching the cylinder warming cylinder 100 to the gas cylinder 50, the hot water circulating device 200 may be connected to the cylinder warming cylinder 100, and the heater 220 of the hot water circulating device 200 may be operated to heat the water to a predetermined temperature. While circulating hot water through the cylinder warming cylinder 100, the hot water circulating device 200 adjusts the temperature so that the gas cylinder 50 can be kept warm with the predetermined hot water.

[0037] After continuing to use the gas cylinder 50 until it is completely used up, the hot water circulation device 200 is turned off, the cylinder heat insulation tube 100 is opened to the left and right, and the gas cylinder 50 is replaced. In this way, the gas cylinder 50 can be replaced as many times as necessary to use up the gas cylinder 50 to the last drop.

[0038] As described above, the cylinder heat-insulating tube 100 of the present invention uses the tube 20 and the heat insulating material 30, and therefore can be manufactured relatively inexpensively and is lightweight. This makes the cylinder heat-insulating tube 100 easy to carry and easy to attach to the gas cylinder 50. Also, by adjusting the fixing means 11 of the cylinder heat-insulating tube 100, the tube 20 can be fixed so as to fit tightly to the gas cylinder 50. Furthermore, by using this cylinder heat-insulating tube 100 and a hot water circulator, the gas cylinder 50 can be efficiently kept warm using water at a predetermined temperature. This allows the gas in the gas cylinder 50 to be used up to the last drop.

[0039] Furthermore, in the cylinder thermal insulation tube 100 of the present invention, the tube 20 of the cylinder thermal insulation tube body 10 is installed via the thermal insulation material 30. Therefore, even if the cylinder thermal insulation tube body 10 is cooled by the influence of outside air, the tube 20 will not be cooled by direct contact with the cylinder thermal insulation tube body 10, and a drop in the temperature of the hot water in the tube can be prevented. This allows the gas cylinder to be kept warm more efficiently than conventional cylinder thermal insulation tubes. Furthermore, because the thickness of the thermal insulation material 30 is 2 to 5 mm, it can be tightly fixed even to gas cylinders with smaller diameters than usual.

[0040] The cylinder heat insulation tube in the above-described embodiment is merely an example, and its configuration can be modified as appropriate within the scope of the invention. [Explanation of symbols]

[0041] 10 Cylinder insulation tube body 11 Fixing means 14 Opening and closing means 15 Installation means 20 tubes 21 Entrance 22 Joints 23 Connecting tube 24 Exit section 30 Insulation 50 gas cylinders 100 Cylinder Heat Insulation Tube 111 engaged portion 112 Engagement part 200 Hot water circulation equipment 210 Aquarium 220 Heater 230 Pump 240 Piping 300 Cylinder Heating Device

Claims

1. The cylinder heat-insulating cylinder body is opened and closed to the left and right to surround the outer circumferential surface of the gas cylinder and attached to the gas cylinder, and a tubular tube is formed on the inner wall surface of the cylinder heat-insulating cylinder body and is installed so as to be in close contact with the gas cylinder. The cylinder heat-retaining cylinder body is an opening / closing means for opening and closing the cylinder heat-retaining cylinder body into a semicircular left part and a semicircular right part; a fastening means for fastening the left and right portions together; an installation means for installing the tube; Equipped with A cylinder heat-insulating cylinder characterized in that a heat insulating material is installed on the inner wall surface, and the tube is installed through the heat insulating material.

2. 2. The cylinder heat insulating cylinder according to claim 1, wherein the heat insulating material is a heat insulating adhesive tape or a heat insulating adhesive sheet having a thickness of 2 to 5 mm.

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