KR20150026084A - Device for prevented a bursting by freezing - Google Patents

Device for prevented a bursting by freezing Download PDF

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Publication number
KR20150026084A
KR20150026084A KR20130104437A KR20130104437A KR20150026084A KR 20150026084 A KR20150026084 A KR 20150026084A KR 20130104437 A KR20130104437 A KR 20130104437A KR 20130104437 A KR20130104437 A KR 20130104437A KR 20150026084 A KR20150026084 A KR 20150026084A
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KR
South Korea
Prior art keywords
cylinder
plunger
pressure
freezing
water
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Application number
KR20130104437A
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Korean (ko)
Inventor
김준구
Original Assignee
린나이코리아 주식회사
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Application filed by 린나이코리아 주식회사 filed Critical 린나이코리아 주식회사
Priority to KR20130104437A priority Critical patent/KR20150026084A/en
Publication of KR20150026084A publication Critical patent/KR20150026084A/en

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/10—Devices preventing bursting of pipes by freezing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Details Of Valves (AREA)

Abstract

The present invention is applicable to a plunger (220) for preventing freezing of a vulnerable part due to freezing of a water tube, such as a water pipe connected to a product requiring water supply from the outside such as a water heater, a dishwasher, A valve body 210 having a cylinder 211 forming a moving peak of the valve body 210; The plunger 220 moving in response to pressure fluctuations of the water channel 100 along the cylinder 211; An elastic member 230 elastically supporting the plunger 220 in the cylinder 211; A discharge passage 212 formed along the inner wall of the cylinder 211 based on an elastic section of the elastic member 230; And a base (240) fitted to the cylinder (211) and having a hole (241) formed therein.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pressure-

The present invention relates to a method for preventing freezing of a vulnerable site caused by freezing of a water pipe, such as a water pipe connected to a product requiring water supply from the outside such as a water heater, a dishwasher, and a boiler or a direct connection part between a product and a water pipe, The present invention relates to a pressure-responsive type freezing prevention device for restoring the operation of a pipeline to a normal operation.

If there is a water pipe or water reservoir in a product such as a water heater, a dishwasher, or a boiler, there is a function to prevent freezing systematically. However, when there is no power supply, there is no part for preventing freeze after freezing.

Korean Patent Laid-Open No. 10-2004-0073911 discloses prevention of frost in tap water facilities in relation to prevention of frost. Since this technique uses a bellows-shaped tube made of synthetic resin, it can not expect a buffering effect against high water pressure, and the possibility of breakage due to the bellows property is high, so it is difficult to expect a return effect.

Other patent documents related to prevention of freeze wave, Korean Patent Application No. 10-2006-0023482, are described as a freeze prevention device to be installed on a water pipe, and the structure is complicated and there is a possibility of causing a breakdown as much as possible, For example, a corrugated pipe that shrinks and expands in the vertical direction due to a change in temperature, an opening / closing means linked to the valve, and a plurality of valve systems are frequently included in the system, resulting in frequent breakdowns and a large number of components, making manufacture difficult and inexpensive.

Another patent document, Korean Utility Model Application No. 20-2002-0001214, discloses a frost preventing device capable of preventing freezing in faucets, water meters, or pipelines by opening and closing a valve in response to a temperature change to prevent frost. However, this technology induces shrinkage of shrinkable material in response to temperature change, and after that, opening the inlet by the mechanism interlocks, tap water in the pipe is flowed to the outside to prevent the frost wave, so that the deformation of shrinkable material, There is a great possibility that malfunction occurs due to foreign matter.

Therefore, it is possible to prevent freezing by freezing even in the absence of power, apart from the function of preventing the system from freezing by supplying power to the internal water pipe in the product of water heater, dishwasher, And the necessity of applying parts for preventing freezing was also demanded.

Patent Document 1: Korean Patent Publication No. 10-2004-0073911 Patent Document 2: Korean Patent Application No. 10-2006-0023482 Patent Document 3: Korean Utility Application No. 20-2002-0001214

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a water tank, a dishwasher, a boiler, And it is an object of the present invention to provide a high-reliability pressure-response type freeze prevention device that prevents freezing by freezing in a power-free state separately from a function of systematically preventing freezing in a water tube.

Another object of the present invention is to prevent freezing of a vulnerable site due to freezing of a water tube including a water pipe or a part of a direct connection part between a product and a water pipe and to restore the operation of the product and the water pipe to normal operation And to provide a pressure-responsive type freezing prevention device.

It is a further object of the present invention to provide a pressure control system and a control method thereof that directly responds to a hydraulic pressure variation in a piping to relieve pressure to prevent a weak portion of a susceptible portion from being frozen by a water pipe, And to provide a device for preventing freezing.

It is still another object of the present invention to simplify the structure of the device for preventing freezing of frost, which is provided on a water pipe to prevent freezing of a fragile portion by freezing, with a simple structure.

According to an aspect of the present invention, there is provided a pressure-sensitive type freeze preventing apparatus comprising: a water channel through which a flowing fluid moving to a water pressure flows; a plunger for moving the plunger to selectively open and close the plunger to prevent freezing of the plunger by freezing the plunger, the apparatus comprising: a body of a valve body comprising a cylinder forming a moving peak of the plunger; The plunger moving in response to pressure fluctuations in the water conduit along the cylinder; An elastic member for elastically supporting the plunger in the cylinder; An exhaust passage formed along the inner wall of the cylinder based on the elastic section of the elastic member; And a base which is fitted to the cylinder and is perforated.

Preferably, the valve body is cylindrical and has a hollow space therein, and the hollow space is formed as a cylinder.

Preferably, the plunger moving peak of the body is formed by a stopper protruding from the inner wall of the cylinder.

Preferably, the body of the freeze protection device is formed of a connecting portion or a nut, which includes a connecting screw for piping.

Preferably, the plunger is composed of a seal plate selected from any one of shapes for mounting, joining, or engaging with a sealing material which is in close contact with the inner wall of the cylinder.

Preferably, the discharge passage is formed by cutting at least one groove along a vertical direction along the inner wall of the cylinder.

Preferably, the elastic member is made of any one selected from a compression coil spring, and a shrinking expansion member capable of shrinking and expanding.

Preferably, the base includes an insert head inserted into the cylinder space of the body.

The pressure-responsive type freezing prevention device according to the embodiment of the present invention is a device for preventing the pressure reaction type freeze prevention device from being installed in a water supply pipe for supplying a fluid to a product such as a water heater, a dishwasher, There is an effect of providing a high-reliability pressure-response-type freeze prevention device that prevents freezing by freezing the water pipe.

In addition, the pressure-responsive type freeze preventing device of the present invention prevents the freezing of the vulnerable parts due to freezing of the water tube including the water pipe or the parts directly connected to the product and the water pipe, There is an effect to restore.

In addition, the pressure-responsive type freeze preventing device of the present invention directly responds to the pressure fluctuation in the piping to relieve the pressure to prevent freezing of the fragile portion of the water pipe, and when the spring buffer section is exceeded, the fluid is ejected to the outside, Can be safely prevented.

In addition, the pressure-responsive type freezing prevention apparatus of the present invention provides a freezing prevention apparatus that economically prevents freezing of a fragile portion by freezing through a simple and simple structure using a small number of parts.

1 is an exploded view of a pressure-responsive type freezing prevention device according to an embodiment of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the valve body 210, and FIG. 2 (b) is a sectional view taken along the line A-A 'of the valve body of the pressure-responsive type freezing prevention device according to the embodiment of the present invention.
3 is a configuration diagram of a device for preventing a freezing of hair according to an embodiment of the present invention;
4 is a sectional view taken along the line B-B 'in Fig. 3;
FIG. 5 is an explanatory view of a fluid flow of a device for preventing freezing of a flow of a valve body according to an embodiment of the present invention. FIG. 5 (a) (c) shows the state of pressure damping and fluid discharge under the water clogging condition.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The pressure-responsive type of freeze preventing device according to the present invention is installed at any position so as to be in communication with the water channel 100 through which the flow fluid moving to the water pressure flows, moves the plunger with the action water pressure to selectively close the flow channel, And a freezing prevention device 200 composed of a valve body for preventing freezing by the freezing device.

FIG. 1 is an exploded view of a pressure-responsive type freezing prevention device 200 according to an embodiment of the present invention installed in a water channel 100.

The main part is composed of a valve body 210 composed of a cylinder 211 forming a moving peak of the plunger 220 moving under pressure.

The elastic member 230 is configured to elastically support the plunger 220 moving in response to the pressure fluctuation of the water channel 100 along the cylinder 211 in the cylinder 211.

A base 240 having an opening 241 is formed in the cylinder 211. The base 240 is formed with a discharge passage 212 along the inner wall of the cylinder 211 on the basis of an elastic section of the elastic member 230, do.

Fig. 2 shows a configuration of the valve body 210 of the pressure-responsive type freeze prevention device according to the embodiment of the present invention. (a) is a longitudinal sectional view of the valve body 210, and (b) is an example in which the discharge passage 212 is formed as a cross-sectional view of the valve body.

Referring to FIG. 2, the valve body is cylindrical and has a hollow space therein. The hollow space is formed by a cylinder 211, so that the plunger 220 reacts at a pressure or water pressure condition of the fluid flowing along the water channel 100 And is configured to move along the cylinder 211.

The movement peak of the plunger 220 is determined by the stopper 213 protruding from the inner wall of the cylinder 211 and the position of the stopper 213 is equal to or greater than the position when the elastic member 230 is extended to the maximum So that the plunger 220 is within the range of the elastic force of the elastic member 230. The flow path formed by the stopper 213 is always configured to be in the closed state by the plunger 220 under the condition that the pressure exceeding the elastic force of the elastic member 230 is not applied.

The plunger 220 moving along the cylinder 211 in response to the fluid pressure flowing along the water channel 100 communicates with the discharge passage 212 under the pressure operating condition exceeding the spring elastic force. Referring to FIG. 2, the discharge passage 212 formed on the inner wall of the cylinder 211 is shown as being divided into four parts. However, it is not necessarily required to have four, and one or more of 2.3.4.5. . Alternatively, it is also possible to expand the inner wall of the cylinder to form the entirety of the exhaust passage.

The valve body 210 of the freeze protection device 200 may be constituted by a connection part 250 including a connecting screw for piping or a connection part 250 selected from a nut so that the valve body 210 can be connected along the water pipe 100 have.

FIG. 3 is a view showing a state of engagement of the device for preventing a freezing of hair according to an embodiment of the present invention. 3, the plunger 220 is seated within the cylinder 211 of the valve body 210. The plunger 220 is resiliently biased by the resilient member 230 and the resilient member 230 is biased by the base 240 As shown in Fig. According to this coupling structure, the plunger 220 has a movement peak whose upward movement is blocked by the upper stopper 213 and the upper flow path is closed, the flow of the flow fluid flowing from the upper end is blocked, And is blocked by the plunger 220.

In this state, when the fluid pressure from the upper portion of the plunger 220 acts in a state where the elastic force of the elastic member 230 exceeds the spring elasticity, the spring contracts and the outer wall of the plunger 220 is separated from the discharge passage 212 And is discharged through the holes 241 of the base 240 through the holes.

4 is an assembled cross-sectional view of an apparatus for preventing freezing of ice according to an embodiment of the present invention, in which a pressure is not applied to the plunger 220, so that the discharge passage 212 is blocked by the plunger 220.

Here, the plunger 220 may be composed of a seal plate 222, which is mounted on the upper portion of the seal member 221, which is in close contact with the inner wall of the cylinder 211, . The seal member 221 coupled to the plunger 220 in the shape of the seal plate 222 closes the gap between the inner wall of the cylinder 211 and the leakage of the fluid flowing along the water line 100 in the normal state.

The elastic member 230 which functions to support the plunger 220 with the elastic force in the cylinder 211 and to bring the upper surface of the elastic member 230 into close contact with the stopper 213 is preferably a compression coil spring 231. A suitable member among the shrinking expansion members that replace the spring elastic function of the compression coil spring 231 may be selected. For example, a highly elastic cushion material such as a rubber material whose elastic modulus is controlled may be selected as a substitute member, but it is more preferably a compression coil spring which can easily control the elastic modulus according to the water pressure.

The base 240 coupled to the cylinder 211 of the valve body 210 has an insert head 242 having a hole 241 through which the fluid passes and inserted into the space of the cylinder 211 of the body 210 . 4, the insert head 242 of the base 240 is inserted into the space of the cylinder 211 and is capable of discharging the fluid through the central hole 241. It is preferable that the insert head 242 is coupled to the cylinder 211 so as not to be detached when engaged with the cylinder 211 or not to be pulled out by a screw coupling method or the like although not shown in the figure. The base 240 coupled to the end of the body 210 rigidly supports the elastic member 230 in the cylinder 211 to closely contact the plunger 220 with the moving peak stopper 213.

5 is an operation example of the device 200 for preventing a frost caused by the valve body 210 according to the embodiment of the present invention.

(a) shows the flow state of the freezing prevention device 200 in a normal fluid flow in which the water reaches the water side at an appropriate water pressure under the condition that the water side is open.

(b) shows a state in which a hydraulic pressure acts on the plunger 220 of the freezing prevention device 200 to move the plunger 220 by pressure under the condition that the water side is closed, and the abnormal fluid Flow prevention device 200 in the flow. Here, assuming that the water pressure acting on the plunger 220 is in the range of 0 to 17 kgf / cm 2, the moving peak upper dead point of the plunger 220 moving along the space of the cylinder 211 is a position in contact with the stopper 213, Is formed in a state immediately before the discharge passage 212 is in a state of being in contact with the discharge passage 212. The top dead center and the bottom dead center of the plunger form a buffer zone 'L1'.

Therefore, when the hydraulic pressure of 0 to 17 kgf / cm 2 flows into the cylinder 211 of the freeze prevention device 200 along the water conduit 100, the fluid is not discharged but the plunger 220 acts to contract the elastic member 230 Thereby relieving the pressure remaining on the water channel 100 by a buffer action to prevent freezing due to water pressure.

Here, when the pressure exceeding the buffering interval 'L1', that is, the pressure of 17 kgf / cm2 or more is applied, the interval length of the first buffering zone 'L1' is extended, meaning that the pressure acting on the plunger 220 exceeds 17 kgf / And the amount of shrinkage of the elastic member 230 is further increased as shown in (c) below.

For reference, the pressure of 17 kgf / cm < 2 > at which the spring buffering zone 'L1' is formed is not an absolute value but is any pressure that can be made larger or smaller.

(c) is a state in which a hydraulic pressure acts on the plunger 220 of the freeze prevention device 200 to move the plunger 220 by pressing the plunger 220 under the condition that the water side is closed as shown in (b) When the pipe is completely frozen or the volume of the water pipe is large and the water pressure is applied at a water pressure exceeding 17 kgf / cm2, the movement and buffer section of the plunger 220 exceeds the bottom dead point, thereby contracting the elastic member 230, The sealant 221 contacting the inner wall of the cylinder 211 indicates the amount of movement of the plunger 220 exceeding the bottom dead center of the cylinder 211 and communicates with the discharge passage 212. The fluid that flows into the cylinder 211 by the water pressure continuously flows along the inner wall discharge passage 212 of the cylinder 211 and is discharged to the outside through the hole 241 of the base 240, Through fluid discharge to prevent freezing by freezing.

As described above, according to the present invention, when the plunger 220 moves in the cylinder 211 according to the water pressure of the water pipe of the water pipe and the freezing condition occurs after the product stops operating and the maximum water pressure is generated, (17kgf / ㎠ pressure operating condition) The pressure is relieved by shrinkage, and further divided by the secondary pressure (17kgf / ㎠ pressure condition condition), and it responds to the pressure fluctuation and discharges the fluid to relieve the pressure on the whole pipeline, do. The pressure of 17 kgf / cm < 2 > is not an absolute value but is an arbitrary pressure of fluid flowing along a normal water channel,

In addition, when the volume of the water pipe is large, the volume expansion of the fluid is increased. When the volume of the water pipe is increased, the liquid is ejected to the outside of the spring buffering section 'L1' as shown in FIG. 5 (c).

In addition, when the water pipe is frozen, it protects the product and prevents secondary damage such as leakage due to water leakage after defrosting, and when the defrosting is thawed, the plunger is automatically returned to the desired position by elastic force of the elastic member. none.

The present invention is not limited to the embodiments but can be modified and modified without departing from the gist of the present invention. And modifications and variations are included in the technical idea of the present invention.

100: Water pipe
200: Freezing device
210: Valve body
211: Cylinder
212:
213: Stopper
220: plunger
221: sealing material
222: seal plate
230: elastic member
231: Compression coil spring
240: Base
241: hole
242: Insert head

Claims (8)

A water channel 100 in which a fluid flowing through the water channel 100 flows, and a plunger 220 in a partial pressure so as to be in communication with the water channel 100 to selectively open and close the channel, In the device (200) for preventing freezing of the frozen liquid,
A body 210 of a valve body formed of a cylinder 211 forming a moving peak of the plunger 220; The plunger 220 moving in response to pressure fluctuations of the water channel 100 along the cylinder 211; An elastic member 230 elastically supporting the plunger 220 in the cylinder 211; A discharge passage 212 formed along the inner wall of the cylinder 211 based on an elastic section of the elastic member 230; And a base (240) fitted to the cylinder (211) and having an opening (241). The method according to claim 1,
Wherein the valve body is cylindrical and has a hollow space therein and the hollow space is formed by a cylinder (211). The method according to claim 1,
Wherein the movement peak of the plunger (220) of the body (210) comprises a stopper (213) protruding from the inner wall of the cylinder (211). The method according to claim 1,
The body 210 of the freeze protection device 200 is composed of a connection part 250 including a connecting screw for piping or a connection part 250 selected from a nut. The method according to claim 1,
Wherein the plunger (220) comprises a seal plate (222) selected from any one of a shape for mounting, joining or coupling a sealant (221) in close contact with an inner wall of the cylinder (211). The method according to claim 1,
Wherein the discharge passage (212) is formed by cutting at least one groove along a vertical direction along the inner wall of the cylinder (211). The method according to claim 1,
Wherein the elastic member (230) is made of any one selected from a compression coil spring (231) and a shrinking expansion member capable of expansion and contraction. The method according to claim 1,
Wherein the base (240) includes an insert head (242) inserted into the cylinder (211) space of the body (210).
KR20130104437A 2013-08-30 2013-08-30 Device for prevented a bursting by freezing KR20150026084A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101665052B1 (en) * 2015-06-09 2016-10-12 (주)수도프리미엄엔지니어링 Apparatus for preventing frozen of water
KR20160144810A (en) * 2015-06-09 2016-12-19 (주)수도프리미엄엔지니어링 Safety valve having functions of preventing frozen of water and draining of hot water

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101665052B1 (en) * 2015-06-09 2016-10-12 (주)수도프리미엄엔지니어링 Apparatus for preventing frozen of water
WO2016200152A1 (en) * 2015-06-09 2016-12-15 (주)수도프리미엄엔지니어링 Antifreezing apparatus
KR20160144810A (en) * 2015-06-09 2016-12-19 (주)수도프리미엄엔지니어링 Safety valve having functions of preventing frozen of water and draining of hot water
CN107787387A (en) * 2015-06-09 2018-03-09 须藤优质工程有限公司 Defroster
JP2018517085A (en) * 2015-06-09 2018-06-28 スド・プレミアム・エンジニアリング・カンパニー・リミテッドＳｕｄｏ Ｐｒｅｍｉｕｍ Ｅｎｇｉｎｅｅｒｉｎｇ Ｃｏ．， Ｌｔｄ． Freezing prevention device
RU2672337C1 (en) * 2015-06-09 2018-11-13 Судо Премиум Инжиниринг Ко., Лтд. Anti-freeze device
US10267021B2 (en) 2015-06-09 2019-04-23 Sudo Premium Engineering Co., Ltd. Antifreezing apparatus

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