JP2021071120A - Heater and heating device for liquid container - Google Patents

Abstract

To provide a heater and a heating device for a liquid container that can easily install a horizontally-mounted, cylindrical liquid container, can be manufactured inexpensively using a flexible pipe, and are in close contact with the liquid container to heat it efficiently.SOLUTION: A heater 100 for a liquid container 50 is composed of a frame 10 and a plurality of flexible pipes 20. The pipes 20 form a flow path along the lower part of the outer diameter of the liquid container 50, and are installed side by side in a lateral direction of the liquid container 50 so as to come into contact with the liquid container 50. The frame 10 has: a first hot water supply pipe 11 that has an inlet part 111 for hot water at its end part and to which one ends of the pipes 20 are fixed; a second hot water supply pipe 12 that has an outlet part 121 at its end part, and to which the other ends of the pipes 20 are fixed; support pillars 15 that respectively support the first hot water supply pipe 11 and the second hot water supply pipe 12; a holding plate 13 of the liquid container 50 that holds both end parts of the liquid container 50 in a longitudinal direction; and a base 19 that supports the support pillars 15.SELECTED DRAWING: Figure 1

Description

The present invention relates to a heater and a heating device for heating a horizontal cylindrical liquid container.

Many liquid containers cannot be directly heated by a heater or an open flame, for example, a high-pressure liquefied gas cylinder. A high-pressure liquefied gas cylinder is filled in a liquefied state by pressurizing a gas (chlorine, ammonia, sulfite gas, etc.), and the liquid is vaporized and supplied from the gas cylinder or top-pressurized and evaporates as a liquid. It is sent to a vessel and vaporized before being sent. High-pressure liquefied gas cylinders come in various dimensions from general household use to industrial use. Small gas cylinders used in ordinary households are used vertically up to a filling gas amount of about 50 kg (content capacity 115 L, height 1300 mm) (LPG gas), but most containers larger than this are used to prevent danger. Used horizontally. Industrial gas cylinders used in factories and the like have been enlarged, and some gas cylinders have a filling gas amount of 1 ton or more (content capacity of 1800 L or more and length of 3 m or more). Similarly, a general liquid container becomes a horizontal container when it becomes a drum can (200 liters) or more.

Generally, as the use of a gas cylinder is continued, the liquid level in the container drops, and the pressure (internal pressure) of the gas in the container gradually decreases. As a result, the liquefied gas in the container cannot be vaporized to the end and used, and there is a problem that the liquid remains in the container. In order to use up the liquefied gas in the container to the end, it is necessary to heat the gas cylinder to a temperature equal to or lower than the legal temperature (40 ° C or lower) to promote vaporization. In order to meet the desire to use up the gas cylinder as much as possible, various methods have been proposed for warming the gas cylinder to promote vaporization. In addition, the liquid in a general liquid container may also be heated to reduce the viscosity of the liquid so that it can be easily moved.

For example, there is a method in which a large amount of hot water is brought into direct contact with the gas cylinder in order to heat the gas cylinder, but the gas cylinder is generally made of metal and may be corroded. In addition, there are problems such as damage to the gas cylinder and deterioration of durability. The High Pressure Gas Safety Act stipulates that corrosion should be prevented (High Pressure Gas Safety Act, General High Pressure Gas Safety Regulations, Article 60-4, etc.). As another example, there is a method of heating the gas cylinder by connecting it to a power cord and supplying electric power by using an electric heater (jacket) that surrounds the peripheral surface of the gas cylinder, but this is a nonflammable gas according to the High Pressure Gas Safety Act. Only applicable. Most of the liquefied high pressure gas is flammable. Therefore, a device or method has been proposed in which hot water is used instead of electric power to heat a gas cylinder not directly but through a tube or the like. The same idea applies to general liquid containers.

Patent Document 1 discloses a "cylinder heat insulating cylinder" by the inventor of the present application as a device via a tube or the like. The cylinder heat insulating cylinder is composed of a cylinder heat insulating cylinder main body that opens and closes to the left and right to surround the outer peripheral surface of the gas cylinder and is attached, and a tubular tube installed on the inner wall surface thereof. As a result, the work of attaching to the gas cylinder is easy, and the gas cylinder can be efficiently kept warm. This gas cylinder heat insulating cylinder is particularly effective for a vertically installed gas cylinder.

In Patent Document 2, a heat radiating plate having a flow path formed inside a metal plate is attached so as to surround a part or all of the body plate of a bulk storage tank (horizontal gas cylinder), and hot water is provided in this flow path. A bulk supply device is disclosed that is designed to circulate. According to the present invention, the bulk storage tank is always kept at a constant temperature, and it is possible to prevent a decrease in the amount of vaporization generated even when the outside air temperature drops.

Patent Document 3 describes a liquefied gas container (horizontally placed) composed of a flexible pipe bundle in which a plurality of pipes through which a heat exchange medium flows inside are connected in the width direction, and a stand for suspending the pipe bundle. A type of gas cylinder) heating / cooling device is disclosed. According to the present invention, the mounting surface can flexibly change its shape according to the outer shape of the liquefied gas container, high contact with the container can be obtained, and the heat exchange medium and liquefaction circulating inside the pipe bundle can be obtained. It is said that the efficiency of heat exchange with the gas container will be high.

Japanese Patent No. 6150187 Japanese Unexamined Patent Publication No. 2000-291891 Japanese Unexamined Patent Publication No. 2007-146993

Since the cylinder heat insulating cylinder of Patent Document 1 is attached by opening and closing left and right to surround the outer peripheral surface of the gas cylinder as described above, when attaching a large industrial gas cylinder, especially a gas cylinder used horizontally. It takes effort. Regarding the bulk supply device of Patent Document 2, it is troublesome to attach a heat radiating plate so as to surround a part or all of a large horizontal gas cylinder. In particular, in the case of a large gas cylinder having a filling gas amount of 1 ton or more, a large heat radiating plate having a corresponding weight is required, and the installation work requires labor. Therefore, a bulk supply device having a configuration in which a large gas cylinder can be easily installed is desired. Further, since the heat radiating plate is manufactured by bending it according to the curvature of the gas cylinder so as to come into contact with the gas cylinder, the work process and cost for manufacturing are required.

The heating / cooling device of Patent Document 3 includes a flexible pipe bundle in which a plurality of pipes through which a heat exchange medium flows are connected in the width direction, but the plurality of pipes themselves do not have flexibility. It is made of a metal material (Patent Document 3 specification paragraph [0026]). As a suitable cross-sectional shape of the pipe, a circular shape, an elliptical shape, an oval shape, and an arch shape are considered (FIG. 4 of Patent Document 3). However, forming a pipe made of a metal material in such a shape requires a work process and a cost. Further, in order to increase the heat exchange rate between the gas cylinder and the pipe, a flexible vinyl pipe (hose) having strong adhesion to the gas cylinder is preferable to the pipe made of a metal material. Further, by using a vinyl-based pipe, it can be manufactured at low cost, and a suitable cross-sectional shape (circular, oval, oval, bow) of the pipe can be realized. Further, although the piping of Patent Document 3 is arranged in the longitudinal direction, the hot water may cool down in the middle, especially in winter, because the route through which the heat exchange medium (for example, hot water) circulates at one time becomes long and the circulation rate is poor. possible. Therefore, it is more preferable to arrange the pipes in the lateral direction of the gas cylinder so that the water flow path is short.

In view of the above problems, the present invention can easily install a horizontally placed cylindrical liquid container, can be inexpensively manufactured by using a flexible pipe, and is brought into close contact with the liquid container for efficient heating. It is an object of the present invention to provide a heater and a heating device for a liquid container.

(1) The invention according to claim 1 is a liquid container heater for heating a horizontally placed cylindrical liquid container, wherein the liquid container heater includes a gantry and a plurality of flexible containers. It is composed of a pipe having a property, and the pipe forms a flow path along the lower part of the outer diameter of the liquid container, and is installed side by side in the lateral direction of the liquid container so as to come into contact with the liquid container. The gantry has a first hot water supply pipe to which one end of the pipe is fixed and an outlet of the hot water at the end, and the other end of the pipe has an inlet portion for hot water at the end. A second hot water supply pipe to be fixed, a support column for supporting the first hot water supply pipe and the second hot water supply pipe, and both ends in the longitudinal direction of the liquid container are held, and the lower part of the outer diameter of the liquid container is held. It is a heater of a liquid container characterized by having a holding plate of the liquid container formed along the above and a base for supporting the support column.
(2) The invention according to claim 2 is the heater for a liquid container according to claim 1, wherein the pedestal includes a pipe holding plate that supports the pipe from below.
(3) The invention according to claim 3 is the heater for the liquid container according to claim 1 or 2, wherein the support column of the first hot water supply pipe and the support column of the second hot water supply pipe are It is characterized in that it is movably installed in a direction in which the distance between the first hot water supply pipe and the second hot water supply pipe is widened or narrowed.
(4) The invention according to claim 4 is the heater for the liquid container according to any one of claims 1 to 3, wherein the inlet portion of the first hot water supply pipe and the second hot water supply pipe are used. The outlet portion is arranged in the opposite direction to the left and right.
(5) The invention according to claim 5 is the heater for the liquid container according to any one of claims 1 to 4, wherein the plurality of pipes are installed at predetermined intervals. And.
(6) The invention according to claim 6 is the heater of the liquid container according to any one of claims 1 to 5, the inlet portion of the first hot water supply pipe of the heater of the liquid container, and the second. A liquid container heating device comprising a hot water circulation device connected to the outlet portion of the hot water supply pipe and provided with a pump for flowing hot water through the pipe to circulate the hot water.

The liquid container heater and heating device of the present invention can be easily installed in a horizontal cylindrical liquid container, can be manufactured inexpensively using flexible piping, and can be efficiently adhered to the liquid container. Can be heated.

It is a partially cutout front view of the heater of the liquid container which is one Embodiment of this invention. It is a side view of the heater of the liquid container which is one Embodiment of this invention. It is a top view of the heater of the liquid container which is one Embodiment of this invention. It is explanatory drawing which shows the sectional view of the piping of the heater of the liquid container which is one Embodiment of this invention, and the sectional view of the compressed piping. It is explanatory drawing which shows the structure of the heating device of the liquid container which is one Embodiment of this invention.

Hereinafter, embodiments of the present invention (hereinafter referred to as Examples) will be described with reference to the drawings. In the following figures, the common parts are designated by the same reference numerals, and duplicate description of the parts having the same reference numerals will be omitted. Further, although a high-pressure gas cylinder will be described as an example of the liquid container below, the present invention is not limited to this, and can be applied to any cylindrical liquid container.

[Structure of heater 100 for liquid container]
First, the configuration of the heater 100 (hereinafter referred to as the heater 100) of the liquid container according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a partially cutaway front view of the heater 100, FIG. 2 is a side view of the heater 100, FIG. 3 is a plan view of the heater 100, and FIG. 4 is a sectional view of a pipe of the heater 100. It is sectional drawing of a pipe. As shown in FIG. 1, the heater 100 is used in this embodiment to heat a gas cylinder 50 for a horizontally placed liquefied gas. The heater 100 is composed of a gantry 10 and a plurality of flexible pipes 20.

The gantry 10 basically includes a first hot water supply pipe 11, a second hot water supply pipe 12, a support column 15 that supports them, a gas cylinder holding plate 13, and a base 19. These are made of stainless steel or the like having excellent corrosion resistance. The first hot water supply pipe 11 and the second hot water supply pipe 12 are installed on the upper part of the gantry 10 via the support columns 15 as shown in FIGS. 1 and 2, and are predetermined in parallel as shown in FIGS. 2 and 3. Installed at a distance (interval). The distance here means the distance from the center of the diameter of the first hot water supply pipe 11 to the center of the diameter of the second hot water supply pipe 12 (hereinafter, the meaning of the distance is the same).

The predetermined distance is designed to be longer than the outer diameter of the gas cylinder 50 to be used (outer diameter of the circular cross section) so that the gas cylinder 50 can be easily placed, for example, about 1.25 times the outer diameter. As an example of a large gas cylinder 50, in the case of an ammonia gas cylinder 50 having an outer diameter of 973 mm, a length of 3120 mm, an internal volume of 1860 liters, and a gas capacity of 1000 kg, leave a distance of about 1216 mm, which is 1.25 times the outer diameter. The first hot water supply pipe 11 and the second hot water supply pipe 12 are installed. The respective columns 15 can be movably installed so that the predetermined distance between the first hot water supply pipe 11 and the second hot water supply pipe 12 can be changed in the direction of widening or narrowing the distance. In this embodiment, as shown in FIG. 2, the support column 15 is movably installed in the direction of the arrow. By making the distance between the first hot water supply pipe 11 and the second hot water supply pipe 12 changeable, the gas cylinder 50 can be easily installed, and the pipe 20 can be easily brought into close contact with the gas cylinder 50. Further, even if the dimensions of the gas cylinder 50 are slightly changed, the gas cylinder 50 can be installed.

The first hot water supply pipe 11 of this embodiment has an inlet portion 111 of hot water to be supplied at an end portion, and the other end portion is closed by a cap 112 or the like. When two pumps of the hot water circulation device described later are used, both ends of the first hot water supply pipe 11 may be used as inlets. Further, in FIG. 1, the entrance portion 111 is provided at the left end portion and the right end portion is closed, but left and right may be reversed. A fixture such as a pipe connection nut is installed at the inlet 111 in order to connect to the pipe of the hot water circulation device. Further, one end of the pipe 20 is connected to the side surface of the first hot water supply pipe 11 in the longitudinal direction. In this embodiment, 19 pipes 20 are fixed as shown in FIG. 1, but a plurality of pipes (about 15 to 30) are fixed according to the size of the gas cylinder 50. Further, the same number of connection ports 110 as the number of pipes 20 are bored on the side surface of the first hot water supply pipe 11.

The distance between the plurality of connection ports 110 (distance between adjacent connection ports 110) depends on the size and material of the pipe 20, but is formed at a predetermined distance. The material of the pipe 20 will be described later, but since the pipe 20 has flexibility, the cross section of the pipe 20 is circular before the gas cylinder 50 is installed, as shown in the partially cutout portion of FIG. is there. When the gas cylinder 50 is installed, it is pressed by the weight of the gas cylinder 50 and its cross section of the pipe 20 is deformed to about one-third (see FIG. 4).

FIG. 4A shows a circular pipe 20 having an outer diameter of 48 mm. The right figure shows the state before being pressed, and the left figure shows the state after being pressed. As shown in the figure on the left, when pressed, the vertical direction of the cross section is deformed in the direction of being compressed by about one-third (32 mm), and the horizontal direction spreads horizontally by about 1.78 times (57 mm) in the vertical direction. Deforms in the direction. Similarly, FIG. 4 (B) shows circular pipes 20 (outer diameter 62 mm) having different dimensions (right figure), but as shown in the left figure, when pressed, the vertical direction of the cross section is one-third. It is deformed in the direction of being compressed by about (41.3 mm), and in the horizontal direction, it is deformed in the direction of spreading horizontally by about 1.78 times (73.8 mm) in the vertical direction.

The interval at which the connection port 110 of the first hot water supply pipe 11 is bored is preferably such that the pipe 20 is pressed against the gas cylinder 50 and does not come into contact with each other even if its cross section is deformed. This is because when the pipes 20 come into contact with each other, the cross-sectional shape is distorted, the flow path of the hot water flowing through the pipe 20 is crushed, and it becomes difficult to efficiently flow the hot water. In this embodiment, as shown in FIG. 1, the pipes 20 are fixed at predetermined intervals so that they do not come into contact with each other even if the cross section of the pipes 20 is deformed. As a result, hot water can be efficiently flowed through the pipe 20.

The connection port 110 can be a so-called hose joint type or hose end type (gas plug shape) pipe joint so that the pipe 20 can be easily connected. By making the connection port 110 such a shape, the pipe 20 is inserted into the connection port 110, and the band (not shown) is fixed near the root of the pipe 20 to make the pipe 20 into the first hot water supply pipe 11. It can be easily fixed.

Further, when the pipe 20 is removed from the first hot water supply pipe 11, it can be easily removed by simply removing the band of the pipe 20 and pulling the pipe 20 from the connection port 110. As a result, the pipe 20 can be replaced, and maintenance becomes easy. The method of fixing the first hot water supply pipe 11 and the pipe 20 is not limited to this, and any method may be used. Further, in the present embodiment, an example in which the first hot water supply pipe 11 and the pipe 20 are detachably fixed has been described, but the present invention is not limited to this, and the connection between the hot water supply pipe 11 and the pipe 20 is firmly fixed. , The configuration may not come off.

The second hot water supply pipe 12 of this embodiment has an outlet portion 121 for hot water to be discharged at an end portion, and the other end portion is closed by a cap 122 or the like. Both ends of the second hot water supply pipe 12 may be used as outlets. Further, in FIG. 3, the outlet portion 121 is provided at the right end portion and the left end portion is closed, but left and right may be reversed. Similar to the first hot water supply pipe 11, a fixture such as a pipe connection nut is installed at the outlet portion 121, and the other ends of the plurality of pipes 20 are connected to the side surface of the second hot water supply pipe 12 in the longitudinal direction. Connection port 110 is bored. Since the position for fixing the pipe 20 to the second hot water supply pipe 12 and the fixing method or attachment / detachment method are the same as those for the first hot water supply pipe 11 described above, the description thereof will be omitted.

Further, in this embodiment, as shown in the plan view of FIG. 3, the inlet portion 111 of the first hot water supply pipe 11 is arranged at the left end portion, and the outlet portion 121 of the second hot water supply pipe 12 is arranged at the right end portion. Will be set up. By arranging in this way, the direction in which the hot water flows in the first hot water supply pipe 11 (from left to right in FIG. 3) and the direction in which the hot water flows in the second hot water supply pipe 12 match, and the hot water is efficiently circulated. Can be made to. The arrangement of the inlet portion 111 and the outlet portion 121 is not limited to this, and the inlet portion 111 may be arranged at the right end portion and the outlet portion 121 may be arranged at the left end portion, or a very powerful pump is used. In some cases, the inlet 111 and the outlet 121 may be arranged in the same direction. In that case, the direction in which the hot water flows in the first hot water supply pipe 11 and the direction in which the hot water flows in the second hot water supply pipe 12 are opposite to each other.

As shown in FIG. 1, the support column 15 and the support column receiver 17 are installed at both ends of the first hot water supply pipe 11. The support column 15 is installed immediately below the first hot water supply pipe 11, and the support column 15 and the support column support 17 are connected via a member 16. With such a support column configuration, when changing the height of the entire support column, the height can be easily changed by changing the support column 15 or the support column support 17 to different dimensions. As described above, the member 16 can be a rotating member in order to move the support column 15 (see FIG. 2). By making the member 16 a rotating member, the support column 15 is rotatably installed with respect to the support column receiver 17, and the distance between the first hot water supply pipe 11 and the second hot water supply pipe 12 can be changed as described above. .. The configuration of the strut is not limited to these, and the strut 15 and the strut receiver 17 may be integrally configured.

As shown in FIGS. 1 and 2, a holding portion 18 for supporting the gas cylinder holding plate 13 is installed under the support column 17, and a base 19 is below the holding portion 18. The gas cylinder holding plate 13 and the holding portion 18 may be integrally formed. Further, the holding portion 18 and the base 19 may be integrally configured. Further, the support column 15, the support column support 17 and the holding portion 18 may be integrally configured, or the support column 15, the support column support 17, the holding portion 18 and the base 19 may be integrally configured.

The gas cylinder holding plate 13 is formed along the lower part of the outer diameter of the gas cylinder 50, and is installed so as to bridge between the columns of the first hot water supply pipe 11 and the second hot water supply pipe 12 (see FIG. 2). The length of the gas cylinder holding plate 13 in the longitudinal direction is about one-half to one-third of the outer circumference of the gas cylinder. The length of the gas cylinder holding plate 13 of this embodiment in the longitudinal direction is about five-twelfth of the outer circumference of the gas cylinder 50.

For example, in the case of the gas cylinder 50 having an outer diameter of 973 mm, the outer circumference is about 3055 mm, and the length of the gas cylinder holding plate 13 in the longitudinal direction is about 1273 mm, which is five-twelfth of the length. By installing the gas cylinder holding plates 13 in the left and right holding portions 18, it is possible to hold both ends of the gas cylinder 50 in the longitudinal direction. The width (length in the lateral direction) of the gas cylinder holding plate 13 is about twice the width of the holding portion 18 (see FIG. 3), and the gas cylinder 50 holds only both ends on the width.

A plurality of flexible pipes 20 are installed between the left and right columns 15. The pipes 20 form a flow path along the lower part of the circular cross section of the gas cylinder, and are installed side by side in the lateral direction of the gas cylinder 50 so as to come into contact with the gas cylinder 50. As described above, one end of the pipe 20 is connected to the first hot water supply pipe 11, and the other end is connected between the second hot water supply pipe 12.

For the pipe 20, for example, a flexible vinyl hose can be used. The material of the hose may be any material such as soft vinyl chloride, silicone rubber, polyurethane resin, and nylon. In this embodiment, a hose is used for the pipe 20, and the dimension thereof depends on the dimension of the gas cylinder 50. For example, in the case of the gas cylinder 50 (outer diameter 973 mm) described above, the dimension of the pipe 20 is about 35 to 65 mm. The length needs to be about two-thirds (about 2037 mm) of the outer circumference (about 3055 mm) (see FIG. 2).

Further, for the pipe 20, a hose having an operating range temperature of −5 ° C. to 60 ° C. is used. Since the temperature of the hot water flowing through the hose needs to be a temperature equal to or lower than the legal temperature (40 ° C or lower), any hose may be used as long as it has flexibility to allow hot water to flow at 40 ° C or lower. By using a hose for the pipe 20, it can be manufactured at a lower cost and is lighter than the pipe made of a metal material of the prior art.

As shown in FIG. 2, the plurality of pipes 20 are arranged so that the lengths of the pipes 20 are adjusted so as to be in contact with the gas cylinder 50. The pipe holding plate 14 may be installed in order to bring the pipe 20 into sufficient contact with the gas cylinder 50 and to support the pipe 20 from below.

Like the gas cylinder holding plate 13, the pipe holding plate 14 is formed along the lower part of the outer diameter of the gas cylinder 50, and is held so as to bridge between the columns of the first hot water supply pipe 11 and the second hot water supply pipe 12. It is installed in the unit 18. Unlike the gas cylinder holding plate 13, the pipe holding plate 14 is installed so as to cover the entire lower portion of the side surface of the gas cylinder 50 (see FIGS. 1 and 3). In this embodiment, as shown in FIG. 2, the pipe holding plate 14 is installed, but when the gas cylinder 50 is sufficiently in contact with the pipe 20 and it is not necessary to support the pipe 20 (for example, when the pipe 20 is short). It is not necessary to install the pipe holding plate 14 in the above.

The height of the base 19 is configured to be a predetermined height so that the lowermost portion of the pipe 20 or the pipe holding plate 14 does not come into contact with the installation surface (for example, the ground) of the heater 100. Further, the length of the columns 15 of the first hot water supply pipe 11 and the second hot water supply pipe 12 makes it easy to place the gas cylinder 50 on the heater 100, and the pipe 20 covers about two-thirds of the outer circumference of the gas cylinder 50. It is adjusted to a length that can be surrounded.

Further, the distance between the left and right columns 15 of the first hot water supply pipe 11 is the body portion excluding the left and right end plate portions 51 of the gas cylinder 50 so that the heater 100 can heat the lower side surface of the gas cylinder 50 as a whole. It is preferable to arrange it at a length of about 52 (about 3/4 of the total length) (see FIG. 1). For example, in the case of the gas cylinder 50 having a length of 3120 mm, the distance between the left and right columns 15 is about 2340 mm. The same applies to the distance between the left and right columns 15 of the second hot water supply pipe 12.

As described above, since the heater 100 is configured to be in close contact with the gas cylinder by using the flexible pipe 20, the gas cylinder 50 can be efficiently heated. Further, since the gantry 10 that matches the dimensions of the horizontal gas cylinder 50 is used, it can be easily installed simply by placing the gas cylinder 50.

[Structure of heating device 300 for liquid container]
Next, a heating device 300 (hereinafter, referred to as a heating device 300) for a liquid container provided with the heater 100 of the present invention will be described. FIG. 5 is an explanatory diagram showing the configuration of the heating device 300 of this embodiment. The heating device 300 is connected to the heater 100, the inlet 111 of the first hot water supply pipe 11 and the outlet 121 of the second hot water supply pipe 12, respectively, and flows and circulates a fluid (hot water) having a predetermined temperature. It is composed of a hot water circulation device 200. In the explanatory view of FIG. 5, the heater 100 is schematically shown.

As shown in FIG. 5, the hot water circulation device 200 includes at least a water tank 210, a heater 220, a pump 230, and a pipe 240. As the water tank 210, it is preferable to use a water tank surrounded by a heat insulating material that stores a predetermined amount of water and keeps the heated state for a predetermined time. Further, as the heater 220, a heater with a water temperature adjusting function can be used. In this embodiment, a heater capable of adjusting the water temperature to 40 ° C. or lower is particularly used.

As the pump 230, a pump 230 that pumps hot water from the water tank 210 and obtains a predetermined discharge amount can be used. In this embodiment, an industrial pump 230 that pumps hot water so as to keep the flow velocity of the hot water flowing in from the inlet 111 of the first hot water supply pipe 11 at 2 to 3 m / s is used. By using the pump 230 that strongly sucks up hot water in this way, hot water reaches the pipe 20 of the discharge port 110 farthest from the inlet 111 of the first hot water supply pipe 11, and the outlet of the second hot water supply pipe 12 Hot water can be circulated to the portion 121.

The pump 230 is connected to the inlet 111 of the heater 100 via the pipe 240, and the outlet 121 is connected to the water tank 210 via the pipe 240. Since the inlet portion 111 and the outlet portion 121 are provided with fixtures such as a pipe connecting nut as described above, the pipe 240 can be easily connected and fixed.

The water tank 210 is not limited to a water tank that collects and heats water, and may be a water tank having a built-in heater 220 and having a temperature control function, a water tank having a built-in pump 230, or a water tank having a stirring function. Good. Since the power supply used for the hot water circulation device 200 needs to be separated from the gas cylinder 50 by a legal distance (2 m) or more, the length of the pipe 240 and the installation location of the hot water circulation device 200 are adjusted so as to maintain the distance. .. Further, depending on the place where the hot water circulation device 200 is installed, the outlet portion 121 of the second hot water supply pipe 12 is connected to the pump 230 as an inlet portion, and the inlet portion 111 of the first hot water supply pipe 11 is used as an outlet portion to supply hot water. It may be circulated. Further, when a plurality of gas cylinders 50 are used, each gas cylinder 50 is installed in the heater 100, and the hot water of the heater 100 is circulated by using the water tank 210 of one hot water circulation device 200. You may.

[How to use the heating device 300]
Next, how to use the heating device 300 will be described. Before starting to use the horizontal gas cylinder 50, the gas cylinder 50 is installed in the heater 100. As shown in FIG. 1, the gas cylinder 50 is placed on the gas cylinder holding plate 13 at both ends of the body portion 52 so that the end plate portions 51 at both ends thereof come out. At this time, the support column 15 is adjusted and placed so that the flexible pipe 20 (hose) is in close contact with the body portion 52 of the gas cylinder 50 (see the arrow in FIG. 2).

After that, the heater 100 is connected to the hot water circulation device 200, the power of the hot water circulation device 200 is turned on and operated, and hot water having a temperature of 40 ° C. or lower (for example, 30 ° C.) is circulated to the heater 100. Before installing the gas cylinder 50 in the heater 100, the heater 100 may be connected to the hot water circulation device 200, and the heater 220 of the hot water circulation device 200 may be operated to warm the water to a predetermined temperature. The hot water circulation device 200 adjusts the temperature of the gas cylinder 50 so that it can be heated by the hot water while the hot water is circulated in the heater 100.

After continuing to use the gas filled in the gas cylinder 50 and using it to the end, the power of the hot water circulation device 200 is turned off, the gas cylinder 50 is removed from the heater 100, and a new gas cylinder is replaced. In this way, the gas filled in the gas cylinder 50 can be used up to the end.

As described above, since the heater 100 of the present invention uses the flexible pipe (hose) 20, it can be manufactured at a lower cost than the conventional device and is brought into close contact with the gas cylinder 50. Can be heated efficiently. Further, as described above, since the heater 100 of the present invention uses a gantry 10 that matches the dimensions of the gas cylinder 50, it can be easily installed simply by placing the horizontal gas cylinder 50.

Further, by using the heater 100 and the hot water circulation device 200, the gas cylinder 50 can be efficiently heated with hot water at a predetermined flow rate. As a result, the gas in the gas cylinder 50 can be used up to the end.

The liquid container heater and heating device of the above-described embodiment are examples, and a high-pressure gas cylinder has been described as an example of the liquid container. However, the present invention is not limited to this, and the present invention is applicable to all cylindrical liquid containers. It can be done. Further, the configurations of the heater and the heating device of the liquid container of the present invention can be appropriately changed without departing from the spirit of the invention.

10 Stand 11 First hot water supply pipe 12 Second hot water supply pipe 13 Gas cylinder holding plate (holding plate for liquid container)
14 Piping holding plate 15 Support 16 Member 17 Support holder 18 Holding 19 Base 20 Hose 50 Gas cylinder (cylindrical liquid container)
51 End plate part 52 Body part 100 Liquid container heater (heater)
110 Connection port 111 Inlet 112, 122 Cap 121 Outlet 200 Hot water circulation device 210 Water tank 220 Heater 230 Pump 240 Piping 300 Liquid container heating device (heating device)

(1) The invention according to claim 1 is a horizontal type cylindrical liquid container heater, wherein the liquid container heater is composed of a gantry, a plurality of flexible pipes, and the like. The pipes form a flow path along the circumferential direction of the lower outer shape of the liquid container so as to come into contact with the liquid container, and are installed side by side in the axial direction of the liquid container . A first hot water supply pipe having an inlet portion for hot water at an end and fixing one end of the pipe, and a second hot water supply pipe having an outlet portion for hot water at the end and fixing the other end of the pipe. Hold only the hot water supply pipe, the support columns that support the first hot water supply pipe and the second hot water supply pipe, and both ends in the axial direction of the liquid container, and align them along the circumferential direction of the lower outer shape of the liquid container. The liquid container heater is formed by having a holding plate of the liquid container for holding the liquid container, and a base for supporting the support column and the holding plate of the liquid container.
(2) The invention according to claim 2 is the heater for a liquid container according to claim 1, wherein the pedestal includes a pipe holding plate that supports the pipe from below.
(3) The invention according to claim 3 is the heater for the liquid container according to claim 1 or 2, wherein the support column of the first hot water supply pipe and the support column of the second hot water supply pipe are It is characterized in that it is movably installed in a direction in which the distance between the first hot water supply pipe and the second hot water supply pipe is widened or narrowed.
(4) The invention according to claim 4 is the heater for the liquid container according to any one of claims 1 to 3, wherein the inlet portion of the first hot water supply pipe and the second hot water supply pipe are used. The outlet portion is arranged in opposite directions in the axial direction of the first hot water supply pipe and the second hot water supply pipe.
(5) The invention according to claim 5 is the heater for the liquid container according to any one of claims 1 to 4, wherein the plurality of pipes are installed at predetermined intervals. And.
(6) The invention according to claim 6 is the heater of the liquid container according to any one of claims 1 to 5, the inlet portion of the first hot water supply pipe of the heater of the liquid container, and the second. A liquid container heating device comprising a hot water circulation device connected to the outlet portion of the hot water supply pipe and provided with a pump for flowing hot water through the pipe to circulate the hot water.

Claims (6)

A horizontal cylindrical liquid container heater,
The heater of the liquid container is composed of a gantry and a plurality of flexible pipes.
The pipes form a flow path along the lower part of the outer diameter of the liquid container, and are installed side by side in the lateral direction of the liquid container so as to come into contact with the liquid container.
The gantry
A first hot water supply pipe that has an inlet for hot water at the end and one end of the pipe is fixed.
A second hot water supply pipe having the hot water outlet at the end and fixing the other end of the pipe,
The columns that support the first hot water supply pipe and the second hot water supply pipe, respectively,
A holding plate of the liquid container formed along the lower part of the outer diameter of the liquid container while holding both ends in the longitudinal direction of the liquid container.
The base that supports the support and
A heater for a liquid container characterized by having. The heater for a liquid container according to claim 1, wherein the pedestal includes a pipe holding plate that supports the pipe from below. The heater for a liquid container according to claim 1 or 2, wherein the support column of the first hot water supply pipe and the support column of the second hot water supply pipe are the first hot water supply pipe and the second hot water supply pipe. A liquid container heater characterized in that it is movably installed in a direction that widens or narrows the distance from a pipe. The heater for a liquid container according to any one of claims 1 to 3, wherein the inlet portion of the first hot water supply pipe and the outlet portion of the second hot water supply pipe are arranged in opposite directions. A heater for a liquid container, characterized in that it is used. The heater for a liquid container according to any one of claims 1 to 4, wherein the plurality of pipes are installed at predetermined intervals. The liquid container heater according to any one of claims 1 to 5, and the inlet portion of the first hot water supply pipe of the liquid container heater and the outlet portion of the second hot water supply pipe are connected to each other. A liquid container heating device comprising a hot water circulation device including a pump for flowing hot water through the pipe to circulate the hot water.

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