KR20170011094A - T-type gate valve for frost protection - Google Patents
T-type gate valve for frost protection Download PDFInfo
- Publication number
- KR20170011094A KR20170011094A KR1020150103067A KR20150103067A KR20170011094A KR 20170011094 A KR20170011094 A KR 20170011094A KR 1020150103067 A KR1020150103067 A KR 1020150103067A KR 20150103067 A KR20150103067 A KR 20150103067A KR 20170011094 A KR20170011094 A KR 20170011094A
- Authority
- KR
- South Korea
- Prior art keywords
- housing
- stem
- coupled
- hollow
- disk
- Prior art date
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Classifications
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- 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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
Description
The present invention relates to a T-shaped gate valve capable of preventing freezing, and more particularly, to a T-shaped gate valve capable of preventing freezing of a fluid, including a temperature sensor for detecting the temperature of the fluid and a heating member for generating heat when the detected temperature is lower than a predetermined temperature Type gate valve.
The gate valve is a valve for controlling the flow of the flowing fluid, and is generally used for the purpose of blocking the flow of the fluid.
Among them, the T-shaped gate valve is a valve having a structure in which the inflow and outflow passages of the fluid in the valve body are formed at different heights from each other, and the disc can be closed in the valve body by closing between the inflow passage and the discharge passage .
If such a valve is closed in a state exposed to a cold environment at a low temperature in winter, the internal fluid can not be opened while it is frozen, and the frozen fluid expands and the valve is damaged.
In order to solve this problem, a technique for preventing freezing of fluid in a closed state has been studied, but a commercialized valve is very rare. Especially, a study has not been conducted to prevent freezing of a T-type gate valve.
In addition, if a leak occurs in the valve, it is possible to recognize the leakage only after a large amount of water has leaked, and there is a problem that if leakage occurs, the pipe around the valve is corroded.
In addition, since valves made of metal are corroded with time, there is a problem that the service life is limited.
Accordingly, the present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a temperature sensor for detecting a fluid temperature and a heating member for generating heat when a detected temperature is lower than a predetermined temperature, The present invention provides a T-shaped gate valve capable of detecting leakages and preventing corrosion.
According to an aspect of the present invention, there is provided a T-shaped gate valve for preventing freeze of a frozen body, comprising: an inlet pipe having a cylindrical hollow formed therein; A housing having a discharge passage communicating with the hollow, respectively; A stem extending from a hollow of the housing to an outer peripheral surface of the housing and coupled to move up and down; A disk coupled to a lower portion of the stem located in the hollow of the housing to close the hollow when the stem is lowered; A temperature sensor for measuring the temperature of the fluid in the housing; And a heating member coupled to the disk and heated when the temperature detected by the temperature sensor is lower than a predetermined value.
The apparatus may further include a closing spring coupled between the housing and the disk to push the disk in a downward direction with elasticity.
In addition, a plurality of recessed stopping grooves are formed on the side surface of the stem in the height direction; A leakage detection sensor for detecting a leakage of water generated at a portion of the outer circumferential surface of the housing where the stem is engaged; a leakage detection sensor coupled to a portion of the outer circumferential surface of the housing where the stem is coupled, And a fixing member for releasing the stem from the fixing groove when the leakage of the liquid is detected through the leakage detection sensor.
The fixing member may include a heating member that is heated when leakage of water is detected by the leakage detection sensor and a bimetal that is coupled with the heating member to release the fixing of the stem due to bending deformation when the heating member is heated .
The apparatus may further include a corrosion-preventing material having a greater ionization tendency than the housing to prevent corrosion of the housing and detachably coupled to a lower end of the disk.
The housing may include a cover coupled with the stem and a body formed with the hollow and detachably coupled to the body so that the corrosion-preventing material can be replaced when the cover is separated from the body .
In addition, a plurality of fastening protrusions protruding outwardly are formed around the upper portion of the body, and a fastening protrusion protruding inwardly in a shape corresponding to the fastening protrusion is formed around a lower portion of the fastening protrusion, And the cover and the body are coupled by assembling the fastening protrusion.
Further, it is preferable to further include a ring-shaped packing coupled to a side surface of the disc to maintain airtightness at the time of closing the hollow, wherein an airtight groove corresponding to the packing is formed on the inner surface of the housing between the inlet and the outlet And is formed by being recessed.
According to the T-shaped gate valve for preventing freezing as described above,
First, the temperature sensor measures the temperature of the fluid, and if the measured temperature is lower than the predetermined temperature, the heating member is heated to raise the temperature of the surrounding structure, thereby preventing the valve from being frozen.
Second, since the closing spring coupled between the housing and the disk pushes the disk in the downward direction, the valve in the open state can be easily closed.
Third, if leakage occurs in the gap between the housing and the stem, leakage can be detected through the leak detection sensor. Since the fixing member fixing the position of the stem is released, the valve automatically closes and a large amount of leakage It is possible to distinguish the fixed release state of the fixing member as the pipe, so that the manager can easily judge that the leak has occurred in the valve.
Fourth, the corrosion of the housing and the disk is prevented because the anti-corrosion material having a higher ionization tendency than the housing is bonded to the lower portion of the disk.
Fifth, since the housing is composed of the cover and the body and can be easily detached and attached, it is possible to easily replace the maintenance and anti-corrosion material of the disk and to easily remove the foreign substances accumulated in the body.
1 is a sectional view showing a closed state of a T-shaped gate valve for preventing freezing according to an embodiment of the present invention;
FIG. 2 is a sectional view showing an open state of a T-shaped gate valve for preventing freezing according to an embodiment of the present invention; FIG.
FIG. 3 is a cross-sectional view illustrating a state in which a lid of a T-shaped gate valve for preventing freezing is separated from a body according to an embodiment of the present invention; FIG.
4 is a perspective view showing a state in which a lid of a T-shaped gate valve for preventing freezing is separated from a body according to an embodiment of the present invention;
FIG. 5A is a partial sectional view showing in detail a fixing member inserted in a stop groove of a T-shaped gate valve for preventing freezing according to an embodiment of the present invention; FIG.
FIG. 5B is a partial sectional view showing in detail a fixing member separated from a stop groove of a T-shaped gate valve for preventing freezing according to an embodiment of the present invention; FIG.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2, a T-shaped gate valve for preventing freeze of the frost according to an embodiment of the present invention is a valve for controlling the flow of fluid coupled to a conduit, and when the
Particularly, it includes an
A T-shaped gate valve for preventing freezing of a frost according to an embodiment of the present invention will be described in detail with reference to the drawings. The T-shaped gate valve has a
A
The
The
3 and 4, the
The coupling structure of the
According to the coupling structure of the embodiment, when the
In order to maintain airtightness in a state where the
The
It is preferable that the clearance is minimized so that the fluid is not leaked to the joint portion between the
The
A
The lower portion of the
The
When the
It is preferable that the clearance between the inner wall of the
The
When the valve is closed in a low temperature environment where the temperature falls below 0 ° C, the stagnant fluid is frozen and the valve is opened. To prevent freezing of the fluid, the embodiment of the present invention includes a
The
When the measured temperature is lower than a predetermined value while directly or indirectly monitoring the temperature of the fluid through the
The heat generated in the
When the
The
Therefore, the embodiment of the present invention further includes a
A closing spring for resiliently urging the
As shown, the
The
A plurality of recessed stopping
5A, the fixing
There may occur a situation in which the fluid leaks to the outside of the
Further comprising a leakage detection sensor (142) for detecting a leakage occurring at a portion where the stem (112) of the outer circumferential surface of the housing (100) is engaged so that the leakage of the fluid is blocked and the manager can recognize the occurrence of leakage, The
As shown, the
The
When the
5A and 5B, the fixing
The
Like the
The bimetal 145 is manufactured by superimposing two types of metals having different degrees of expansion and contraction according to a change in the thermal expansion coefficient, that is, a temperature. When the temperature rises, a metal having a larger thermal expansion coefficient is expanded and bent to the opposite side . When the temperature decreases, the bimetal 145 returns to its original shape.
An alloy of nickel (Ni) and iron (Fe) is used as a metal which is not easily inflated. The metal which can be expanded easily is an alloy of nickel, manganese and iron, an alloy of nickel, molybdenum and iron, And alloys of nickel and copper are used.
In order to raise and lower the
The
The ionization tendency is the tendency of a metal to lose electrons and become a cation. Since the ionization tendency is such that the metal is easily oxidized, the metal having a high ionization tendency is more easily oxidized, and the metal having a low ionization tendency does not easily oxidize.
When exposed to water in the presence of a metal having a high ionization tendency and a metal having a relatively low ionization tendency, corrosion of the metal having a low ionization tendency does not occur until all of the metals having high ionization tendency are corroded.
In general, since the valve is made of iron (Fe) as a main material, the
The
When the corrosion-preventing
1 to 3, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be applied to the same application by appropriately modifying the embodiments. Therefore, the description does not limit the scope of the present invention, which is defined by the limits of the following claims.
100: housing 110: cover
112: stem 113: stop groove
114: Disk 115: Packing
116: handle 117: closing spring
118: fastening hook 120: body
121: hollow 122: inflow path
123: exhaust passage 125: airtight groove
128: fastening protrusion 132: control device
134: temperature sensor 136: heating member
142: Leak detection sensor 144: Fixing member
145: bimetal 146: heating element
147: Fixing spring 148: Clip
150: Housing box 152: Corrosion preventing material
Claims (9)
A stem extending from a hollow of the housing to an outer peripheral surface of the housing and coupled to move up and down;
A disk coupled to a lower portion of the stem located in the hollow of the housing to close the hollow when the stem is lowered;
A temperature sensor for measuring the temperature of the fluid in the housing; And
And a heating member coupled to the disk and heated when the temperature detected by the temperature sensor is lower than a predetermined value.
Further comprising a closing spring coupled between the housing and the disc to push the disc in a downward direction with elasticity.
A plurality of recessed stopping grooves are formed on the side surface of the stem in the height direction,
A leakage detection sensor for detecting a leakage occurring at a portion of the outer circumferential surface of the housing coupled with the stem;
Wherein the stem is coupled to a portion of the stem where the stem is coupled with the stop groove of the stem and is inserted into the stop groove to fix the stem up and down. When leakage is detected through the leak detection sensor, Further comprising a fixing member which is detached from the groove and releases the fixing of the stem.
Wherein the fixing member comprises a heating member heated when water leakage is detected by the leakage detection sensor,
And a bimetal coupled to the heating member to release the fixing of the stem when the heating member is heated and bending deformed.
Further comprising a corrosion inhibiting material having a greater ionization tendency than the housing to prevent corrosion of the housing and detachably coupled to a lower end of the disk.
Wherein the housing comprises a lid having the stem coupled thereto and a body formed with the hollow and is detachably coupled to the body so that the corrosion-preventing material can be replaced when the lid is separated from the body. T-type gate valve.
A plurality of fastening protrusions protruding in the outward direction are formed on an upper portion of the body, and a fastening protrusion protruding inwardly in a shape corresponding to the fastening protrusion is formed around a lower portion of the lid, Wherein the cover and the body are coupled with each other by assembling the cover and the body.
Further comprising a ring-shaped packing coupled to a side surface of the disc to maintain airtightness during the closing of the hollow,
And an airtight groove corresponding to the packing is formed on the inner side surface of the housing at a portion between the inlet and the outlet so as to prevent freezing.
A stem extending from a hollow of the housing to an outer circumferential surface of the housing and coupled to be elevated and lowered and having a plurality of recessed stopping grooves formed in a height direction thereof;
A disk coupled to a lower portion of the stem located in the hollow of the housing to close the hollow when the stem is lowered;
A ring-shaped packing coupled to a side surface of the disc to maintain airtightness during closing of the hollow;
A corrosion resistant material having a greater ionization tendency than the housing to prevent corrosion of the housing and detachably coupled to the lower end of the disk;
A closing spring that is coupled between the housing and the disk and pushes the disk in a downward direction with elasticity;
A temperature sensor for measuring the temperature of the fluid in the housing;
A heating member coupled to the disk and heated when the fluid detected by the temperature sensor is below a predetermined temperature;
A leakage detection sensor for detecting a leakage occurring at a portion of the outer circumferential surface of the housing where the stem is coupled; And
Wherein the stem is coupled to a portion of the stem where the stem is coupled with a stop groove of the stem and is inserted into the stop groove to fix the stem up and down. When leakage is detected through the leak detection sensor, And a fixing member separated from the groove to release the fixing of the stem,
Wherein an airtight groove corresponding to the packing is formed on an inner side surface of the housing at a portion between the inlet and the outlet,
Wherein the fixing member includes a heating member that is heated when water leakage is detected by the leakage detection sensor and a bimetal that is coupled with the heating member and releases bending and deforming when the heating member is heated,
The housing may include a cover coupled with the stem and a body formed with the hollow and detachably coupled to each other. When the cover is separated from the body, the corrosion-preventing material can be replaced,
A plurality of fastening protrusions protruding in the outward direction are formed on an upper portion of the body, and a fastening protrusion protruding inwardly in a shape corresponding to the fastening protrusion is formed around a lower portion of the lid, Wherein the cover and the body are coupled with each other by assembling the cover and the body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150103067A KR101742194B1 (en) | 2015-07-21 | 2015-07-21 | T-type gate valve for frost protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150103067A KR101742194B1 (en) | 2015-07-21 | 2015-07-21 | T-type gate valve for frost protection |
Publications (2)
Publication Number | Publication Date |
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KR20170011094A true KR20170011094A (en) | 2017-02-02 |
KR101742194B1 KR101742194B1 (en) | 2017-05-31 |
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KR1020150103067A KR101742194B1 (en) | 2015-07-21 | 2015-07-21 | T-type gate valve for frost protection |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020134993A (en) * | 2019-02-13 | 2020-08-31 | 株式会社昭和バルブ製作所 | Control valve device |
KR102154031B1 (en) * | 2019-06-20 | 2020-09-09 | 심원두 | Condensate drainage interrupter of the malodor prevention facility of the terminal treatment plant |
CN114321398A (en) * | 2021-12-21 | 2022-04-12 | 江苏倍源泵业有限公司 | Low-pressure hot water circulating pump outlet valve |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101955996B1 (en) | 2017-11-10 | 2019-03-08 | 박은애 | Anti-freeze valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101395292B1 (en) | 2012-04-24 | 2014-05-16 | 한국생산기술연구원 | temperature sensing unit and System for preventing frozen to burst using the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3778851B2 (en) * | 2001-12-25 | 2006-05-24 | Smc株式会社 | Poppet valve with heater |
KR100716760B1 (en) * | 2006-10-31 | 2007-05-14 | 주식회사 삼진정밀 | Inside anti-corrosion valve |
JP2008190669A (en) * | 2007-02-06 | 2008-08-21 | Toki Corporation Kk | Gas detector |
JP4864959B2 (en) * | 2008-11-18 | 2012-02-01 | 株式会社栗本鐵工所 | Gate valve |
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2015
- 2015-07-21 KR KR1020150103067A patent/KR101742194B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101395292B1 (en) | 2012-04-24 | 2014-05-16 | 한국생산기술연구원 | temperature sensing unit and System for preventing frozen to burst using the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020134993A (en) * | 2019-02-13 | 2020-08-31 | 株式会社昭和バルブ製作所 | Control valve device |
KR102154031B1 (en) * | 2019-06-20 | 2020-09-09 | 심원두 | Condensate drainage interrupter of the malodor prevention facility of the terminal treatment plant |
CN114321398A (en) * | 2021-12-21 | 2022-04-12 | 江苏倍源泵业有限公司 | Low-pressure hot water circulating pump outlet valve |
CN114321398B (en) * | 2021-12-21 | 2024-03-12 | 江苏倍源泵业有限公司 | Outlet valve of low-pressure hot water circulating pump |
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KR101742194B1 (en) | 2017-05-31 |
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