WO2010137749A1 - 상변화물질을 이용한 동파 방지 밸브 - Google Patents
상변화물질을 이용한 동파 방지 밸브 Download PDFInfo
- Publication number
- WO2010137749A1 WO2010137749A1 PCT/KR2009/002756 KR2009002756W WO2010137749A1 WO 2010137749 A1 WO2010137749 A1 WO 2010137749A1 KR 2009002756 W KR2009002756 W KR 2009002756W WO 2010137749 A1 WO2010137749 A1 WO 2010137749A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chamber
- housing
- phase change
- change material
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/1189—Freeze condition responsive safety systems
- Y10T137/1353—Low temperature responsive drains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/1842—Ambient condition change responsive
- Y10T137/1939—Atmospheric
- Y10T137/1963—Temperature
Definitions
- the present invention relates to a freeze protection valve using a phase change material, and more particularly, it is possible to prevent the freezing of the pipe due to freezing of water by discharging water in the pipe before the temperature of the outside air is lowered below the freezing temperature of the water. It relates to a freeze protection valve using a phase change material.
- water is used as a heat exchange medium in various facilities and facilities such as air-conditioning, air conditioning, refrigeration and freezing, and industrial cooling.
- heat exchange coils, evaporative cooling towers, etc. of water-cooled condensers and air-conditioning air conditioners have a high possibility of freezing accidents due to freezing of water inside the pipes exposed to the outside when the temperature drops below zero, such as winter.
- the water inside the sealed pipeline does not freeze easily in the flow state, but freezes as the temperature decreases while the flow stops, and increases in volume by approximately 10% as it phases from liquid to solid. If the expansion pressure exceeds the endurance strength of the pipeline, freezing waves are generated in the pipeline in the form of cracks or fractures.
- the present invention is to solve the problems as described above, before the water temperature in the pipe is lowered below the freezing temperature of the water to discharge the water in the pipe before the risk of freezing occurs in advance to the pipe freezing accident due to the freezing of water in advance
- the purpose is to provide a freeze protection valve using a phase change material that can be prevented.
- a freeze prevention valve using a phase change material includes a housing coupled to a pipe port of a flow pipe through which a fluid flows; A drainage chamber provided at a portion facing the pipe port of the housing and having an inlet hole communicating with the flow pipe and a drain hole communicating with the outside of the housing; A housing chamber provided at an opposite side of the drainage chamber of the housing and accommodating a phase change material whose volume decreases as the phase changes from a liquid to a solid according to a temperature drop; And a piston which is installed to be movable in the drainage chamber, and on one side thereof is located inside the receiving chamber and is moved in accordance with the volume change of the phase change material, and the other side is a valve for opening and closing the water supply hole according to the movement of the piston. It is configured to include a plunger provided.
- the housing is integrally provided with the drainage chamber and the accommodation chamber on both sides, respectively, a piston hole is provided between the drainage chamber and the accommodation chamber, and the piston of the plunger is inserted into the piston hole. It can be made of a structure.
- the drainage cap is screwed to the outside of the drainage chamber, and the water supply hole is provided in the drainage chamber cap.
- the housing is preferably provided with an injection hole that is screwed to the outer side of the housing chamber, the opening is opened and closed by the opening and closing bolt to the housing chamber stopper.
- the drainage chamber is provided with a spring for elastically supporting the plunger in a direction toward the inside of the storage chamber.
- a valve seat is provided around the inlet of the drain chamber stopper, and a packing for sealing is provided between the valve of the plunger and the valve seat.
- the housing may be formed in a tubular shape in which both sides are open, and may be formed in a structure having a connecting body for forming the drainage chamber on each side and a receiver for forming the receiving chamber.
- the receiver is inserted into the housing is made of a container that is screwed, it is preferable that the receptor plug which is opened and closed for injection of the phase change material to the portion located outside the housing is coupled.
- the inside of the receiver is provided with a spring for elastically supporting the piston of the plunger in a direction toward the inside of the receiver.
- freeze protection valve of the present invention configured as described above has the following effects.
- the injection hole which is opened and closed by the opening / closing bolt is provided in the storage chamber stopper which forms the storage chamber to facilitate the initial injection of the phase change material as well as replenishment injection after the period of use, thereby improving the convenience of maintenance. have.
- the housing compartment of the housing is made of a container form to be made of a separate receiver that is detachably coupled to the housing, it is possible to easily replace the valve by detaching only the receptor to reduce the cost and manpower required for maintenance It has an effect.
- FIG. 1 is a perspective view showing the first embodiment of the freeze protection valve according to the present invention in a coupled state.
- Fig. 2 is a perspective view showing the freeze protection valve of the first embodiment in an exploded state.
- FIG 3 is a cross-sectional view showing a closing operation state of the freeze prevention valve of the first embodiment.
- Fig. 4 is a sectional view showing an opening operation state of the freeze prevention valve of the first embodiment.
- FIG. 5 is a perspective view showing a second embodiment of the freeze protection valve according to the present invention in a coupled state.
- Fig. 6 is a perspective view showing the freeze protection valve of the second embodiment in an exploded state.
- Fig. 7 is a sectional view showing a closing operation state of the freeze prevention valve of the second embodiment.
- Fig. 8 is a sectional view showing an opening operation state of the freeze prevention valve of the second embodiment.
- phase change material 100 freeze protection valve
- injection hole 152 opening and closing bolt
- FIGS. 1 and 2 are perspective views showing the first embodiment of the freeze protection valve according to the present invention in a coupled and disassembled state, respectively, and FIGS. 3 and 4 show the closed and open operation states of the freeze protection valve, respectively. It is a cross section.
- the freeze protection valve 100 of the present invention is coupled to a pipe port 11 branched for measuring the temperature of water on one side of the flow pipe 10 through which water flows, and connected to the housing 110.
- the plunger 140 moves according to the volume change of the received phase change material 20 to communicate or block the inside and the outside of the flow pipe 10.
- the phase change material (C) is a clathrate compound or eutectic chloride, which maintains a liquid state at room temperature, and changes from a low temperature (preferably 2 ° C. to 5 ° C.) to a solid state at a temperature higher than 0 ° C., which is the freezing temperature of water. In contrast to water, which increases in volume when frozen, the volume is reduced when the phase changes from liquid to solid.
- the drainage chamber 111 is provided in communication with the inside of the flow pipe 10 inside the side coupled to the pipe port 11. do.
- a receiving chamber 112 Inside the opposite side of the drainage chamber 111 is provided with a receiving chamber 112 in which the phase change material 20 is contained, and an inward protrusion part partitioning the drainage chamber 111 and the receiving chamber 112 in the middle portion ( 114 and a piston hole 115 communicating the drainage chamber 111 and the accommodation chamber 112 is provided.
- the drainage chamber stopper 120 is screwed to the inner circumferential surface of the longitudinal end of the drainage chamber 111, and the drainage chamber stopper 120 is provided with a water inlet 121 through which water flows from the flow pipe 10.
- the valve seat 122 is provided around the inner surface inlet hole 121 of the drain chamber cap 120.
- a plurality of drain holes 113 are formed at sidewalls of the drain chamber 111 to discharge water introduced into the drain to the outside.
- An accommodating chamber cap 150 is screwed to an inner circumferential surface of the longitudinal end of the accommodating chamber 112, and an accommodating hole 151 for injecting the phase change material 20 is formed in the accommodating chamber cap 150. Opening and closing bolt 152 is inserted into the injection hole 151.
- the plunger 140 is inserted into the drainage chamber 111 so as to be movable in the longitudinal direction.
- One side of the plunger 140 is provided with a piston 141 is inserted into the piston hole 115, the other side is provided with a valve 143 for blocking or opening the inlet hole 121 according to the position,
- a support protrusion 144 is provided between the piston 141 and the valve 143.
- At least one side of the outer circumferential surface of the piston 141 and the inner circumferential surface of the piston hole 115 is formed with a ring groove 142 is coupled to the O-ring (not shown) as a sealing means.
- a spring 130 is provided in the housing chamber 112 of the housing 110 so that one side is in contact with the drainage cap 120 and the other side is in contact with the support protrusion 144.
- the plunger 140 is elastically supported toward the inward protrusion 114 of the housing 110 by the spring 130.
- a packing 131 is provided between the valve 143 of the plunger 140 and the drainage cap 120 to maintain watertightness when the water inlet 121 is blocked.
- the freeze protection valve 100 of the present invention configured as described above is simple by coupling the housing 110 to the piping port 11 so that the drainage chamber cap 120 is inserted into the piping port 11 in a state of being upward. Can be installed.
- the freezing prevention valve 143 maintains a closed state as shown in FIG. 3. That is, since the phase change material 20 accommodated in the accommodating chamber 112 of the housing 110 is in a liquid state, that is, in an expanded state, the pressure of the phase change material 20 is applied to the piston 141. The plunger 140 is applied to maintain the raised position. Therefore, the packing 131 is in close contact with the valve seat 122 so that the water inlet 121 is blocked by the valve 143 so that the water in the flow pipe 10 is not discharged to the outside.
- phase change material C becomes liquid, and the plunger 140 moves upwards as the volume of the phase change material C increases, so that the water is obtained by the valve 143 and the packing 131. This is blocked again.
- the freezing prevention valve of the present invention is automatically opened in accordance with the drop in the outside temperature to discharge the water in the flow pipe 10 before freezing, thereby preventing the freezing wave of the flow pipe 10 in advance. In addition, it does not require any maintenance or replacement during use, which can reduce the cost and effort required for maintenance.
- the opening operation of the valve can be made more smoothly and accurately.
- the drainage chamber stopper 120 forming the drainage chamber 111 and the storage chamber stopper 150 forming the accommodation chamber 112 are screwed to the housing 110, the drainage chamber stopper 120
- the opening and closing positions of the valve can be easily adjusted by rotating, and the pressure of the phase change material 20 acting on the plunger 140 can be easily adjusted by rotating the accommodation chamber stopper 150. Therefore, there is an advantage of having a versatility for a variety of pipes by simply setting the temperature and pressure to open and close the valve according to the use conditions and applications.
- the initial injection of the phase change material is not only easy, but also the supplemental injection after the previous period of use is easy to maintain and maintain. This has the advantage of being further improved.
- the drainage chamber 111 and the accommodation chamber 112 of the housing 110 have been illustrated that the separate drainage chamber stopper 120 and the accommodation chamber stopper 150 are combined.
- a wall blocking the outside of the drainage chamber 111 or the accommodation chamber 112 is integrally provided at the end of the housing 110 so as to replace the drainage chamber cap 120 or the storage chamber cap 150.
- the ball 121 or the injection hole 151 may be formed in a structure.
- the drain chamber cap 120 and the receiving chamber cap 150 may be coupled to a structure other than screwing, for example, an interference fit structure, a structure fixed by protrusions or hooks after insertion.
- FIGS. 7 and 8 are perspective views showing the second embodiment of the freeze protection valve according to the present invention in a coupled and disassembled state, respectively, and FIGS. 7 and 8 are closing and opening operations of the freeze protection valve of the second embodiment, respectively. It is sectional drawing which shows the state.
- the freeze protection valve of the second embodiment shown is a drainage chamber 211 communicating with the inside of the flow pipe 10 inside the housing 210 coupled to the pipe port 11 similarly to the first embodiment described above.
- the housing 210 is formed in the form of a single tube in which the upper and lower portions are opened, and a drain hole 213 communicating at least one side with the drainage chamber 211 and the outside is provided.
- the connecting body 220 is screwed into the pipe port 11 and the housing 210, the upper and lower, respectively, and communicate with both sides, the inlet hole 221 is formed in the lower, around the inlet hole 221 A downwardly protruding valve seat 222 is provided.
- the receiver 230 is screwed to the opposite end to which the connector 220 of the housing 110 is coupled to form a receiving chamber 212 in which the phase change material C is contained.
- the upper portion of the receiver 230 is open so that one side of the plunger 240 can be inserted therein.
- the lower portion of the receiver 230 is opened and closed by the receiver plug 231 to enable the injection of the phase change material 20.
- the plunger 240 is installed to be movable in the longitudinal direction in the drainage chamber 211.
- One side of the plunger 240 is provided with a piston 241 is inserted into the interior of the receiver 230, the other side is provided with a valve 243 for blocking or opening the inlet 221 according to the position.
- the packing 232 for watertightness is coupled to the upper surface of the valve 243 when the water inlet 221 is blocked, and the piston 241 is elastically supported in the direction toward the inside of the receiver 230 by the spring 231. do.
- freeze protection valve of the second embodiment is automatically opened and closed according to the outside air temperature.
- the valve 243 blocks the water inlet 221.
- the valve 243 is obtained by the downward pressure applied to the piston 241 by contracting as the phase change material 20 solidifies. ), And the water of the flow pipe 10 introduced through the open inlet 221 is discharged to the outside through the drain hole 213 to prevent the freezing of the pipe in advance.
- the housing 110 and the connecting body 220 are provided as separate members to be coupled to each other, but the housing 110 and the connecting body 120 may be integrally formed. .
- Freeze protection valve using the phase change material of the present invention can be applied to the piping of various facilities and facilities, such as water supply pipes of general buildings, air conditioning and air conditioning equipment, refrigeration and freezing equipment, industrial cooling facilities.
- the freeze protection valve of the present invention can prevent the freezing of the pipe in advance by automatically discharging the water of the pipe according to the temperature change without any additional operation or management after installation, for preventing freezing in the pipe as in the prior art There is no need to install a separate insulation or heating device, no energy is consumed for the operation of the device, no waste of water thrown away to flow the water, low maintenance cost and no additional maintenance costs after installation High efficiency and useful freeze protection means can be provided.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
- Temperature-Responsive Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims (9)
- 유체가 흐르는 유동배관의 배관포트에 결합되는 하우징;상기 하우징의 상기 배관포트를 향하는 부분에 구비되며, 상기 유동배관 내부로 연통된 입수공 및 상기 하우징 외부로 연통된 배수공이 구비된 배수실;상기 하우징의 배수실 반대측 부분에 구비되며, 기온 강하에 따라 액체에서 고체로 상변화되면서 체적이 감소하는 상변화물질이 수용되는 수용실; 및상기 배수실에 이동 가능하게 설치되며, 일측에는 상기 수용실 내부에 위치되어 상변화물질의 체적 변화에 따라 이동되는 피스톤이 구비되고, 타측에는 상기 피스톤의 이동에 따라 상기 입수공을 개폐시키는 밸브가 구비된 플런저를 포함하는 상변화물질을 이용한 동파 방지 밸브.
- 제1항에 있어서,상기 하우징은 양측에 각각 상기 배수실과 수용실이 일체로 구비되고, 상기 배수실과 수용실 사이에 피스톤공이 구비되며, 상기 플런저의 피스톤이 상기 피스톤공 내부에 삽입된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제2항에 있어서,상기 하우징은 배수실 외측에 배수실마개가 나사결합되고, 상기 배수실마개에 상기 입수공이 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제2항 또는 제3항에 있어서,상기 하우징은 수용실 외측에 수용실마개가 나사결합되고, 상기 수용실마개에 개폐볼트에 의해 개폐되는 주입공이 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제2항 또는 제3항에 있어서,상기 배수실에 플런저를 수용실 내측으로 탄성지지하는 스프링이 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제3항에 있어서,상기 배수실마개의 입수공 주위에 밸브시트가 구비되고, 상기 플런저의 밸브와 상기 밸브시트 간에 밀폐를 위한 팩킹이 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제1항에 있어서,상기 하우징은 양단부가 개방되며, 개방된 양단부에 각각 상기 배수실을 형성하는 연결체 및 상기 수용실을 형성하는 수용기가 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제7항에 있어서,상기 수용기는 하우징에 삽입되어 나사결합되는 용기로 이루어지고, 하우징 외부에 위치되는 부분에 상변화물질의 주입을 위해 개폐되는 수용기마개가 결합된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
- 제8항에 있어서,상기 수용기의 내부에 상기 플런저의 피스톤을 수용기의 내측으로 탄성지지하는 스프링이 구비된 것을 특징으로 하는 상변화물질을 이용한 동파 방지 밸브.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2009/002756 WO2010137749A1 (ko) | 2009-05-25 | 2009-05-25 | 상변화물질을 이용한 동파 방지 밸브 |
| CN200980160471.6A CN102459771B (zh) | 2009-05-25 | 2009-05-25 | 利用相变材料的冻裂防止阀 |
| US13/322,251 US8689813B2 (en) | 2009-05-25 | 2009-05-25 | Valve for prevention of frozen break using phase change material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2009/002756 WO2010137749A1 (ko) | 2009-05-25 | 2009-05-25 | 상변화물질을 이용한 동파 방지 밸브 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010137749A1 true WO2010137749A1 (ko) | 2010-12-02 |
Family
ID=43222846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2009/002756 Ceased WO2010137749A1 (ko) | 2009-05-25 | 2009-05-25 | 상변화물질을 이용한 동파 방지 밸브 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8689813B2 (ko) |
| CN (1) | CN102459771B (ko) |
| WO (1) | WO2010137749A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022102808A1 (ko) * | 2020-11-12 | 2022-05-19 | 배상철 | 자동 잔수 드레인 밸브 |
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| WO1999014093A1 (en) | 1997-09-12 | 1999-03-25 | New York Air Brake Corporation | Method of optimizing train operation and training |
| WO2013034185A1 (en) * | 2011-09-08 | 2013-03-14 | Statoil Petroleum As | Autonomous valve with temperature responsive device |
| US9482357B2 (en) * | 2013-05-29 | 2016-11-01 | Baker Products Ltd. | Temperature controlled purge valve for use in water systems |
| US10598293B2 (en) | 2015-10-27 | 2020-03-24 | Robertshaw Controls Company | Temperature actuated electromechanical pressure relief valve |
| CN106594308B (zh) * | 2016-08-10 | 2018-07-20 | 北京卫星环境工程研究所 | 防冻液氮杜瓦阀门 |
| US11118330B2 (en) | 2016-09-12 | 2021-09-14 | Denset Serralta | Flood mitigation and pipe freeze prevention systems for use in a structure |
| US10329745B2 (en) | 2016-09-12 | 2019-06-25 | Denset Serralta | Flood mitigation and pipe freeze prevention systems for use in a structure |
| CN108894283B (zh) * | 2017-06-26 | 2020-06-30 | 长乐市丽智产品设计有限公司 | 一种防爆裂装置 |
| CN113684064B (zh) * | 2021-08-11 | 2024-03-22 | 郝梅 | 一种流化床气化炉 |
| IT202200024654A1 (it) | 2022-11-30 | 2024-05-30 | Fimcim Spa | Dispositivo valvolare antigelo ed impianto utilizzante detto dispositivo |
| CN115884582B (zh) * | 2023-02-14 | 2023-06-02 | 苏州浪潮智能科技有限公司 | 智能调温装置、单相液冷系统及单相液冷系统的控制方法 |
| DE102024124006B3 (de) | 2024-08-22 | 2026-02-19 | Audi Aktiengesellschaft | Ventil mit Phasenwechselmaterial zur Durchflusssteuerung eines Kältemittels sowie Element für ein Ventil |
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2009
- 2009-05-25 US US13/322,251 patent/US8689813B2/en active Active
- 2009-05-25 CN CN200980160471.6A patent/CN102459771B/zh active Active
- 2009-05-25 WO PCT/KR2009/002756 patent/WO2010137749A1/ko not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460006A (en) * | 1982-01-19 | 1984-07-17 | Eaton Corporation | Freeze protection valve |
| US4776362A (en) * | 1984-11-07 | 1988-10-11 | Domingue Sr Chris J | Relief valve for fluid line |
| JPH08219598A (ja) * | 1995-02-16 | 1996-08-30 | Pacific Ind Co Ltd | 冷媒のチャージ機能付のリリーフバルブ |
| KR20030061603A (ko) * | 2002-01-15 | 2003-07-22 | (주) 동남기연 | 동파방지기 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022102808A1 (ko) * | 2020-11-12 | 2022-05-19 | 배상철 | 자동 잔수 드레인 밸브 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120112114A1 (en) | 2012-05-10 |
| US8689813B2 (en) | 2014-04-08 |
| CN102459771B (zh) | 2014-03-26 |
| CN102459771A (zh) | 2012-05-16 |
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