KR20120132014A - Apparatus for rapid freezing a pipe - Google Patents

Apparatus for rapid freezing a pipe Download PDF

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Publication number
KR20120132014A
KR20120132014A KR1020110050567A KR20110050567A KR20120132014A KR 20120132014 A KR20120132014 A KR 20120132014A KR 1020110050567 A KR1020110050567 A KR 1020110050567A KR 20110050567 A KR20110050567 A KR 20110050567A KR 20120132014 A KR20120132014 A KR 20120132014A
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KR
South Korea
Prior art keywords
refrigerant
outer jacket
shape
pipe
jacket
Prior art date
Application number
KR1020110050567A
Other languages
Korean (ko)
Inventor
신익호
Original Assignee
신익호
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Publication date
Application filed by 신익호 filed Critical 신익호
Priority to KR1020110050567A priority Critical patent/KR20120132014A/en
Publication of KR20120132014A publication Critical patent/KR20120132014A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/103—Means for stopping flow from or in pipes or hoses by temporarily freezing liquid sections in the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The present invention provides a rapid freezing device for piping. The rapid freezing device for piping according to the present invention is bent in a sheet shape and formed to surround the outer shape of the pipe while the one end and the other end of the sheet come into contact with each other. An outer jacket made of a flexible material to inflate when the refrigerant is injected, thereby increasing the volume of the refrigerant space; A refrigerant supply guide part disposed to penetrate an inner surface from an outer surface of the outer jacket and to guide the refrigerant from an external refrigerant tank to the refrigerant space; And an outer fixing part for fixing both ends of the outer jacket and allowing the refrigerant in the refrigerant space to leak out to both sides of the outer jacket when the refrigerant space has a predetermined volume or more.

Description

Rapid freezing device for piping {APPARATUS FOR RAPID FREEZING A PIPE}

The present invention freezes the proper portion of the pipe by using liquid nitrogen gas to prevent leakage, and repair the pipe at the point where the water leak occurs when leaking or replacing the valve, such as water, heavy water, sewage, power plant pipes It relates to a freezing device and a freezing method of the pipe for replacing the valve.

Piping is connected to a plant including a power plant, a general home or school such as a water supply system, or a school to guide the flow of grid water. And in order to maintain the system equipment, it is necessary to freeze the front and rear ends of the pipe, this operation is performed when the drainage of the system water filled in the pipe is impossible or impossible to isolate.

However, conventionally, in order to maintain a pipe, there is a problem that a great risk to the safety of the operator because the work must be stopped after the entire system installation or draining fluid accumulated in the pipe.

In order to solve this problem, the rapid freezing device for piping described in Korean Patent Laid-Open No. 2008-0107297 is as shown in FIG. That is, as shown in Figure 1, for the regular maintenance or replacement of the water pipe, the cooling coil 23 is wound around the outer two places of the water pipe 30 to be cut in the exposed water pipe, and the wound cooling The coil 23 is sealed by the coil jacket 26. The sealed cooling coil 23 is then connected to the rapid freezing device 20 by connecting pipes 22 and 24.

Accordingly, when the rapid freezing device (not shown) is operated, the liquefied refrigerant discharged from the freezing device is supplied to the cooling coil 23 through the connecting pipe 22, the supplied liquefied refrigerant is a gaseous state in the cooling coil (23) While being sucked back into the freezer through the connecting pipe (24). Since the inside of the closed coil jacket is rapidly cooled by the refrigerant circulation process of the refrigerating device, the water in the water supply pipe 30 wound on the cooling coil freezes.

However, the cooling coil has to be wound separately for each pipe to be cut in accordance with the diameter size of the pipe. In this case, the cooling coil may be a metal tube such as a copper tube having excellent heat transfer rate, and it takes a long time to wind the metal tube. Accordingly, there is a problem in that the time for setting the quick frozen device for pipes is long, and the manufacturing cost of the quick frozen device for pipes increases.

In addition, since the pipe is indirectly frozen through the cooling coil, there is a problem in that the freezing time is long.

The present invention is to solve various problems including the above problems, it is an object of the present invention to be applied irrespective of the diameter size of the pipe, it is an object to provide a quick installation device for piping quick freezing.

Another object of the present invention is to provide a quick freezing device for piping having a structure capable of directly freezing the pipe.

The rapid freezing device for piping according to a preferred embodiment of the present invention is bent in a sheet shape and formed to surround the external shape of the pipe while contacting one end of the sheet and the other end thereof, and in a state of wrapping the pipe, When the coolant is injected into the coolant space, the outer jacket is made of a flexible material so as to inflate so as to increase the volume of the coolant space, and is arranged to penetrate the inner surface from the outer surface of the outer jacket, thereby allowing the coolant to flow from the external coolant tank to the coolant space. The refrigerant supply guide portion for supplying the guide and both ends of the outer jacket are fixed, and when the refrigerant space has a predetermined volume or more, the refrigerant in the refrigerant space leaks out to both sides of the outer jacket. It includes an outer fixing portion.

The outer jacket is composed of a glass fiber (non-woven fabric), a non-woven fabric sheet and a fiber having a shape restorability, bonded to the inner surface of the shape restoring portion, the heat insulating portion made of a heat insulating material, and the shape restoring portion Bonded to the outer surface, and may include an outer skin portion including a heat insulating material, and a central fixing portion that is disposed at one end and the other end of the outer skin portion, respectively, to couple between one end and the other end of the outer skin portion.

In this case, the outer jacket is formed with a through hole penetrating between the inner and outer surfaces of the outer jacket, and the coolant supply guide portion is formed from the through passage portion and the through passage portion which are inscribed along the through hole of the outer jacket. A coolant passage extending to protrude from an outer surface of the outer jacket and connected to the outer coolant tank, and the outer hole to preserve the shape of the through hole at an outer side of the through hole in each of the inner and outer surfaces of the outer jacket; It may include a rigid support made of a material having a relatively rigid than the jacket.

The rapid freezing device for piping according to the present invention can be applied regardless of the diameter size of the pipe, because it can be wrapped in the size of the pipe with an outer jacket having a shape restoration.

In addition, by supplying a coolant between the outer jacket and the pipe, the coolant can directly cool the pipe, it is possible to shorten the freezing time.

1 is a cross-sectional view showing a conventional rapid freezing device for piping.
2 is a conceptual diagram illustrating a shape in which a rapid freezing device for pipes according to a preferred embodiment of the present invention is mounted on a pipe.
FIG. 3 is an exploded perspective view illustrating the rapid icing device for piping of FIG. 2.
4 is a cross-sectional view showing one end surface of the outer jacket shown in FIG.
5 is a cross-sectional view illustrating the refrigerant supply guide unit in FIG. 2.
6a and 6b are cross-sectional views showing the operation sequence of the rapid icing device for piping of FIG.
7 is a conceptual diagram illustrating an embodiment of a rapid freezing device for piping of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a rapid icing device 100 for piping according to an embodiment of the present invention.

2 is a conceptual view showing a shape in which the rapid fastening device for pipes 100 according to a preferred embodiment of the present invention is mounted on a pipe, and FIG. 3 is an exploded perspective view showing the quick fastening device for pipes 100 of FIG. 2. to be.

As shown in Figure 2 and 3, the rapid icing device 100 for piping of the present invention, the outer jacket 110, the refrigerant supply guide portion 120 and the outer fixing portion 130. In this case, as described above, the rapid freezing device 100 for piping is a part of the piping that guides the flow of the system water, such as a factory including a power plant, a general home or school such as a water supply, or a valve failure. Due to this, if a replacement is required, the system freezes only the required number of pipes in the pipe, so that the system can be easily and inexpensively maintained.

In this case, as the refrigerant, various known refrigerants such as liquefied nitrogen and freon gas can be used.

The outer jacket 110 is formed into a curved sheet shape. The outer jacket 110 is flexible. Therefore, the outer jacket 110 is bent in conformity with the outer shape of the pipe 30, so as to surround the outer shape of the pipe 30. In this case, when the outer jacket 110 surrounds the outer shape of the pipe, one end 110a and the other end 110b of the outer jacket 110 are formed to be in contact with each other. In this case, the contact means that one end and the other end of the outer jacket 110 is in contact with each other, or the end is in contact with the other end while wrapping.

The outer jacket 110 forms a refrigerant space A (see FIG. 6B) between the pipe 30 and the pipe 30. When the refrigerant is injected into the refrigerant space, the outer jacket 110 is inflated to increase the volume of the refrigerant space. Accordingly, the refrigerant is directly in contact with the outer surface of the pipe 30 for a predetermined time or more, so that the system water in the pipe freezes quickly.

The coolant supply guide unit 120 is disposed to penetrate the inner surface from the outer surface of the outer jacket 110, and guides the coolant to the coolant space from an external coolant tank 150.

The outer fixing part 130 fixes both ends of the outer jacket 110. The outer fixing part 130 may have a thread shape and may be fixed by tying the outer jacket 110. In addition, when the volume of the refrigerant space is a predetermined volume or more, the outer fixing part 130 is preferably fixed to leak out to both sides of the outer jacket 110 when the refrigerant in the refrigerant space is gasified.

That is, the outer fixing part 130 is to fix both sides of the outer jacket 110 to prevent the refrigerant from freezing the pipe for a predetermined time, the outer jacket 110 is too inflated to cause a burst. desirable.

The refrigerant supply guide part 120 may be formed in a plurality of outer jackets 110. In this case, it is possible to connect and use the refrigerant tank 150 as many times as necessary according to the size of the pipe. In this case, reference numeral 35, which is not described, is a valve for opening and closing between pipes.

4 is a cross-sectional view illustrating one end surface of the outer jacket 110. As shown in FIG. 4, the outer jacket 110 includes a shape restoring part 111, a heat insulating part 113, and an outer skin part 115. Shape restoring portion 111 is made of one of glass fiber (glass fiber), non-woven sheet and fiber has a shape restorability. That is, the shape restoring unit 111 has pores. In addition, the shape restoring portion 111 has a certain elasticity. Therefore, when the coolant flows into the coolant space, the shape restoring unit 111 may be inflated to increase the volume of the coolant space. In addition, when the refrigerant escapes from the refrigerant space, the shape of the shape restoring unit 111 may be restored to return to the original shape. The shape restoring unit 111 may be formed by stacking a plurality of sheets with each other.

The heat insulating part 113 is bonded to the inner surface of the shape restoring part 111, it is made of a heat insulating material. The heat insulating material is made of a material having excellent heat insulating properties such as fiber mat, cabla mat, nomax mat, aerogel, carbon mat, silicon. The insulation prevents the refrigerant from flowing out of the outer jacket 110 and prevents the temperature of the refrigerant space from being transmitted to the outside.

The outer skin 115 is bonded to the outer surface of the shape restoring portion 111, and includes a heat insulating material. In this case, as the heat insulating material, as described above, the heat insulating material may be a fiber mat, a cabla mat, a nomax mat, an airgel, a carbon mat, silicon, or the like.

The outer shell 115 may function to minimize the width of the slot while fixing the heat insulating portion 113 and the shape restoring portion 111 in close contact with the pipe. In this case, the outer skin 115 may be made by coating a material such as Teflon-coated fiberglass, Goattex on the insulating material.

A central fixing part 117 may be disposed on the outer surface of the outer skin part 115. In this case, there is a button and a button receiving portion on one side and the other side of the central fixing portion 117, respectively, may be assembled as a button, Velcro 118 may be coupled, or may be coupled by other coupling means.

FIG. 5 is an enlarged cross-sectional view of the refrigerant supply guide unit 120 in FIG. 2. As illustrated in FIG. 5, the outer jacket 110 may have a through hole 112 penetrating between the inner and outer surfaces of the outer jacket 110. In this case, the refrigerant supply guide part 120 may include a refrigerant passage 121 and a rigid support part 127. The refrigerant passage 121 includes a through passage portion 122 and a connection portion 123. The through passage part 122 is inscribed along the through hole 112 of the outer jacket. The connection part 123 extends from the through passage part 122 and protrudes from an outer surface of the outer jacket 110 to be connected to the external refrigerant tank 150. In this case, an intermediate transfer member 140 such as a rubber lake may be interposed between the external refrigerant tank 150 and the connecting portion 123 to connect them.

As one of the methods of connecting the connecting portion 123 and the intermediate transfer member 140, the connecting portion 123 may be a nipple. After inserting the rubber lake into the nipple, it can be coupled by tightening between the nipple and the intermediate transfer member 140 as a clamp. The present invention is not limited thereto, and the present invention corresponds to the case where the connection between the connection part 123 and the intermediate transfer member 140 is possible.

The present invention may further include a rigid support 127. The rigid support part 127 is made of a material having a relatively rigidity than the outer jacket 110, and is formed to preserve the shape of the through hole at the outer periphery of each of the through holes of the inner and outer surfaces of the outer jacket 110.

6A and 6B are cross-sectional views showing an example of the operation of the quick icy device 100 for piping according to an embodiment of the present invention. First, as shown in FIG. 6A, the outer surface of the pipe 30 that needs to be frozen first is wrapped with an outer jacket 110. In addition, both ends of the outer jacket 110 are fixed to the outer fixing part 130. The refrigerant supply guide unit 120 is connected to the refrigerant tank 150 through the intermediate transfer member 140.

Thereafter, as shown in FIG. 6B, the valve of the coolant tank 150 is opened to inject coolant between the outer jacket 110 and the pipe 30. Accordingly, as the refrigerant is filled in the refrigerant space, the outer jacket 110 is inflated to increase the volume of the refrigerant space.

When the coolant is filled in the coolant space A, the coolant is directly communicated with the flow of the pipe 30, and the flow of the pipe 30 freezes. Due to the heat transfer, the high temperature refrigerant becomes gas and exits to the outside through both ends of the outer jacket 110.

7 is a view showing an embodiment of a rapid freezing device for piping 100 according to an embodiment of the present invention. As shown in FIG. 7, when a failure of the intermediate valve 35 occurs, the outer jacket 110 is surrounded by the pipes on both sides of the valve, thereby freezing the system water of the pipe 30. Accordingly, the system water does not flow toward the valve, and the operation of replacing the valve 35 may be smoothly performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

100: pipe quick freezing device 110: outer jacket
111: shape restoration 113: heat insulation
115: outer skin 117: center fixing portion
120: refrigerant supply guide portion 121: refrigerant passage
130: outer fixing portion 140: intermediate transfer member
150: refrigerant tank

Claims (3)

It is formed to be bent into a sheet shape to surround the outer shape of the pipe while contacting one end and the other end of the sheet. An outer jacket made of a flexible material to swell to grow;
A refrigerant supply guide part disposed to penetrate an inner surface from an outer surface of the outer jacket and to guide the refrigerant from an external refrigerant tank to the refrigerant space; And
An outer fixing part for fixing both ends of the outer jacket and allowing the refrigerant in the refrigerant space to leak out to both sides of the outer jacket when the refrigerant space has a predetermined volume or more;
Rapid freezing device for piping comprising a. The method of claim 1,
The outer jacket is:
A shape restoring unit having one of glass fiber, a nonwoven sheet, and a fiber and having form restoring property;
An insulating part bonded to the inner side of the shape restoring part and made of an insulating material;
An outer skin portion bonded to the outer surface of the shape restoring portion and including an insulating material; And
A central fixing part disposed at one end and the other end of the outer skin to couple between one end and the other end of the outer skin;
Rapid freezing device for piping comprising a. The method of claim 1,
The outer jacket is formed with a through hole penetrating between the inner and outer surfaces of the outer jacket,
The refrigerant supply guide unit:
A refrigerant passage including a through passage portion inwardly disposed along the through hole of the outer jacket and a connection portion extending from the through passage portion to protrude from an outer surface of the outer jacket and connected to the external refrigerant tank;
A rigid support part made of a material having a rigidity relatively to that of the outer jacket so as to preserve the shape of the through hole outside the through hole on each of the inner and outer surfaces of the outer jacket;
Rapid freezing device for piping comprising a.
KR1020110050567A 2011-05-27 2011-05-27 Apparatus for rapid freezing a pipe KR20120132014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110050567A KR20120132014A (en) 2011-05-27 2011-05-27 Apparatus for rapid freezing a pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110050567A KR20120132014A (en) 2011-05-27 2011-05-27 Apparatus for rapid freezing a pipe

Publications (1)

Publication Number Publication Date
KR20120132014A true KR20120132014A (en) 2012-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110050567A KR20120132014A (en) 2011-05-27 2011-05-27 Apparatus for rapid freezing a pipe

Country Status (1)

Country Link
KR (1) KR20120132014A (en)

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