JPH11315995A - Heat insulating cover for strainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To independently remove a dividing body for covering a screen detaching part of a strainer by surrounding the strainer by a cover main body formed by joining a plurality of dividing bodies with each other. SOLUTION: A cover main body 2 is formed in such a constitution that three dividing bodies 2a, 2b, 2c are joined with each other, and a strainer 1 is surrounded. The dividing bodies 2a and 2b are pasting through a pasting surface 2e, and they are joined with each other. The dividing body 2c covers a cover 1c of a screen detaching part 9, and it is fitted and assembled to the connecting surface 2d so as to independently remove from the joining body of the dividing bodies 2a, 2b. A penetrating hole 2f for inserting pipe for drain is arranged on he dividing body 2c for covering the screen detaching part 9, and a plug body 2b which is independently removed is filled in the dividing body 2c. The dividing body 2c of he cover main body 2 for covering the screen detaching part 9 and the plug 7 for drain is independently removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating cover for keeping a strainer mounted on piping such as steam, cold and hot water warm and cool, and more particularly to a heat insulating cover for a strainer which is suitable for maintenance work such as attaching and detaching a screen and draining. About.

[0002]

2. Description of the Related Art When a member to be insulated such as piping such as steam, cold or hot water, piping parts such as a valve and a pipe flange is to be kept cool, the outer periphery is covered with a heat insulating cover to keep the temperature. In general, the heat retaining cover is divided so as to facilitate the on-site assembling work, and the divided material is assembled on the outer periphery of the heat-insulated member at the site to surround the heat insulating member (particularly). See Japanese Unexamined Patent Publication No. 9-126390 and Utility Model Registration No. 2533562).

[0003] When the strainer is covered with a heat-retaining cover, the conventional method is to surround the entire strainer with a two-part styrofoam cover or to use glass-rock wool to cover the entire strainer. Heat insulation and cooling are carried out by wrapping.

[0004] Usually, the strainer inspects the screen mounted inside the strainer to check for clogging or accumulation of foreign matter on the screen mounted inside, or to remove and clean the foreign matter. It is necessary to take it out.

[0005]

However, when the screen is covered with the heat insulating cover as described above, there are the following problems in taking out the screen. That is, in the case of the above-mentioned styrofoam cover, the screen was taken out after dividing and removing the heat retaining cover from the strainer, and in the case of the above-mentioned glass and rock wool, the whole was dismantled and removed from the outer periphery of the strainer. Later, the screen was taken out and the strainer was inspected and cleaned. Therefore, in the case of the former, it is necessary to remove the heat insulation cover that has been split from the strainer, which is troublesome and increases the construction cost.In the case of the latter, the heat insulation cover of the strainer must be destroyed. In addition, the cost of materials for re-warming construction also increased, and the number of man-hours increased, resulting in extremely uneconomical and troublesome work. The same was true when draining was performed.

[0006] The present invention has been developed in view of the conventional circumstances, and when removing the screen of the strainer, the screen can be removed without removing the entire heat insulating cover or dismantling the heat insulating covering material. An object of the present invention is to provide a heat-insulating cover which can be mounted and which is excellent in workability and economical efficiency.

[0007]

In order to achieve the above-mentioned object, the present invention relates to a cover body in which a plurality of divided bodies are connected to each other. To remove it.

Further, the divided body covering the drain plug portion of the strainer can be removed independently.

In this case, it is preferable that the cover body has a size that covers the pipe connection portions provided at both ends of the strainer, and a groove is provided on the outer periphery corresponding to the pipe connection portion of the cover body so that the cover body can be cut at this portion. .

[0010] Further, a portion other than the screen attaching / detaching portion or the drain plug portion of the cover main body can be supported by a suspending device to perform air piping.

The heat insulating cover for a strainer according to the present invention can be used to check the clogging of the screen or the accumulation of foreign matter, or to remove the foreign matter when cleaning the screen. Since the cover can be removed independently, the cover can be removed from the entire strainer by dividing it into two parts, like a conventional two-part styrofoam cover, or the entire body can be dismantled, as in the case of glass and rock wool. The screen can be taken out, inspected and cleaned by removing and reassembling the divided body covering the screen attaching / detaching portion of the heat insulating cover, and the operation is easy and economical.

By cutting the cover at the positions of the outer peripheral grooves corresponding to the pipe connection portions on both sides of the heat insulating cover, when a cover having a size between the two connection portions of the strainer is required, the cover can be easily formed. Can respond.

[0013] Further, by supporting a portion other than the screen attaching / detaching portion or the drain plug portion of the cover main body with a suspending tool, the aerial pipe is hung by a portion that does not affect removal of the divided body of the cover main body by itself. it can.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a heat insulating cover for a strainer according to the present invention will be described with reference to the drawings. FIG.
1 is a vertical sectional view showing an embodiment of the present invention in which a heat insulating cover for a strainer of the present invention is attached to a Y-type strainer. FIG. 2 is an external front view of FIG. 1, and FIG. 3 is a right side of FIG. FIG.

1 and 2, 1 is a strainer,
2 is a cover body for heat insulation of the strainer 1, 3 and 4 are pipes, 3a and 4a are connection flanges of the strainer 1 and the pipes 3 and 4. 1a and 1b are connection flanges of the strainer 1, 1c is a lid of the screen attaching / detaching portion 9, 5 is a pipe flange bolt, and 6 is a lid bolt.

Further, the cover body 2 has three divided bodies 2
a, 2b, and 2c are combined to surround the strainer 1, and the divided body 2a and the divided body 2b are configured as shown in FIG.
As shown in the figure, the divided body 2c is bonded by bonding via the bonding surface 2e, and is a divided body that covers the lid 1c of the screen attaching / detaching portion 9, and the divided bodies 2a and 2b are connected at the connection surface 2d.
It is fitted and assembled so that it can be detached by itself from the combined body. In this case, in order to make it difficult for air to enter, an adhesive is applied in advance to one of the bonding surfaces 2e, a release paper is pasted on the adhesive, and the release paper is peeled off at the time of mounting, and the workability is improved. Is good.

In addition to the above-described bonding structure, if a close fitting structure is used, the divided bodies 2a and 2b can be disassembled. Each example of this fitting structure will be described with reference to FIGS. 5 to 8. FIG. 5 shows an example in which a step 2 i is provided between the bonding surfaces 2 e, and FIGS. 6 and 7 show one of the bonding surfaces 2 e. A dovetail groove 2j having a slightly wider bottom and a projection 2k provided on the other side have a θ angle (about 0 to 10 degrees). This is an example that is difficult. Further, FIG. 8 shows an example in which the laminating structure is used for the bonding surface 2 to improve the sealing property.

As shown in FIGS. 1 and 2, the cover body 2 has a size that extends outside the connection flanges 1a and 3a and 1b and 4a for connecting the pipes 3 and 4 on both sides of the strainer 1. Connection flanges 1a and 3a of body 2 and 1
A groove 2h is provided on the outer peripheral surface corresponding to the connection between b and 4a.

The divided body 2c covering the screen attaching / detaching portion 9
Is provided with a through hole 2f for passing a drain pipe, and a plug 2g that can be removed alone is packed in the through hole 2f. FIG.
4 shows a state in which the plug 7 screwed into the lid 1c of the screen attaching / detaching portion 9 of the strainer 1 is removed, and the drain pipe 8 provided with the valve 19 is mounted through the through hole 2f. . 18 is the cover body 2
This is a hanging tool in which a portion other than the screen attaching / detaching portion 9 or the drain plug 7 is hung around a band 17 and hung.

Next, the operation of the above embodiment will be described. When it is necessary to take out the screen 10 in order to check for clogging of the screen 10 of the strainer 1 or accumulation of foreign matter, or to remove and clean the foreign matter, or to remove the drain plug, Detachable part 9
Alternatively, the divided body 2c of the cover body 2 that covers the drain plug 7
Can be removed independently, so that it can be carried out with the heat insulating cover, which is the cover body 2, attached. As in the case of the conventional two-part type styrofoam cover, the cover is removed from the entire strainer by dividing it into two parts. Or, as in the case of glass and rock wool, there is no need to dismantle the whole,
By removing and reassembling the divided body 2c, the screen 10 can be taken out for inspection and cleaning, and the plug 7 can be removed, so that the operation is easy and economical.

When the cover body 2 is cut at the position of the groove 2h on the outer peripheral surface corresponding to the connection portion of the pipe connection flange on both sides of the cover body 2, the connection flange 1 of the strainer 1
When a cover having a length between a and 1b is required, it can be easily handled.

Also, the screen attaching / detaching portion 9 of the cover main body 2
Alternatively, when a portion other than the portion of the drain plug 7 is hung around the band 17 and hung by the hanger 18, aerial piping becomes possible. Further, when connecting the drain pipe 8 to the drain hole of the lid 1c of the screen attaching / detaching portion 9, the pipe 8
Can be mounted through the through hole 2f provided by removing the plug 2g from the divided body 2c covering the screen attaching / detaching portion, and there is no need to perform special processing on the cover body 2 on site.

The heat insulating cover body 2 of the strainer may be made of styrene foam or glass / rock wool.
The divided body 2c that covers the screen attaching / detaching portion 9 is made of polystyrene foam, is stable in shape and can be detached many times for maintenance and inspection, and is extremely economical. Furthermore, in the case of a styrofoam cover, if aluminum foil is attached to the outer surface, it will not only be damaged or stained,
It is also very useful in terms of the heat insulating effect. In addition, the heat insulating cover for the strainer can be effectively made using styrene foam which is relatively gentle on the global environment.

FIG. 9 is a longitudinal sectional view showing another embodiment in which the strainer heat insulating cover of the present invention is mounted on a U-shaped strainer. In FIG. 9, 11 is a strainer, 12
Is a heat insulating cover body of the strainer, 13 and 14 are pipes, and 13a and 14a are connection flanges thereof. 11a and 11b are connection flanges of the strainer 11, 11c is a screen attaching / detaching portion, 15 is a bolt for piping flange, and 16 is a bolt for lid.

The cover body 12 has three divided bodies 12a,
12b and 12c are combined to surround the strainer 11, and the divided bodies 12a and 12b
Are divided by a laminating surface 12e, which is shaded, and the divided body 12c is a divided body that covers the screen attaching / detaching portion 11c.
2b so that it can be detached alone. The bonding surface 12e is preferably coated with an adhesive having a release paper on the bonding surface, as in the above-described example, or formed into various fitting structures as in the previous example to make it difficult for air to enter.

As shown in the drawing, the cover main body 12 has a size extending to the outside of the connection flanges 11a and 13a and 11b and 14a for connecting the pipes 13 and 14 to both sides of the strainer 11, respectively. Connection flange 11
A groove 12h is provided on an outer peripheral surface corresponding to a connection portion between a and 13a and 11b and 14a.

In FIG. 9, the divided bodies 12a and 12a
b, a through-hole 12f for passing a drain pipe is provided on the bonding surface of b.
g. Also, as in the case of FIG. 1, the aerial pipe can be formed by providing the heat-insulating cover shown in FIG.

The operation of the heat insulating cover for the strainer shown in FIG. 9 is the same as the operation described for the heat insulating cover for the strainer shown in FIGS.

The strainer in the present invention is not limited to the Y-type and U-type shown in the above examples, but can be applied to other types.
Further, it goes without saying that the present invention can be applied to a plurality of screens.

[0030]

As is apparent from the above, according to the present invention, the screen can be taken out or drained with the heat insulating cover attached, and the heat insulating cover covering the screen attaching / detaching portion can be easily removed and reassembled. And
Easy maintenance and inspection.

Further, when a cover having a size between the two connection portions of the strainer is required, it can be easily coped with. Furthermore, aerial piping can be performed by suspending the insulation cover at a portion that does not affect the removal of the insulation cover, and it is possible to easily connect the drain pipe without requiring special work on site when connecting the drain pipe. it can.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention in which a strainer heat insulating cover of the present invention is mounted on a Y-type strainer.

FIG. 2 is an external front view of FIG.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a partial cross-sectional view showing a state in which a drain pipe is mounted on the strainer through a heat insulating cover for the strainer.

FIG. 5 is an explanatory view showing an example in which a bonding surface has a fitting structure.

FIG. 6 is an explanatory diagram showing another example of FIG. 5;

FIG. 7 is a partially enlarged view of FIG. 6;

FIG. 8 shows another example of FIG. 5, and is an explanatory view in which a bonding surface has a labyrinth structure.

FIG. 9 is a longitudinal sectional view showing another embodiment of the present invention in which the strainer heat insulating cover of the present invention is mounted on a U-shaped strainer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 11 Strainer 1a, 1b, 11a, 11b Piping connection part 2, 12 Cover main body 2a, 2b, 2c, 12a, 12b, 12c Split body 2g Plug body 2h, 12h Groove 9, 11c Screen attaching / detaching part 10 Screen 18 Hanging tool

Claims (4)

[Claims] 1. A heat insulating cover for a strainer, wherein a cover body in which a plurality of divided bodies are joined surrounds the strainer, and the divided body covering a screen attaching / detaching portion of the strainer can be detached independently. 2. The heat insulating cover for a strainer according to claim 1, wherein the screen attaching / detaching portion is a drain plug portion. 3. The heat insulation for a strainer according to claim 1, wherein the cover main body has a size that covers a pipe connection portion provided at both ends of the strainer, and a groove is provided on an outer periphery corresponding to the pipe connection portion of the cover body. cover. 4. A portion of the cover body other than the screen attaching / detaching portion or the drain plug portion is supported by a hanger.
4. The heat insulating cover for a strainer according to any one of claims 1 to 3.