WO2015147422A1 - Sealing system having leakage sensing function - Google Patents
Sealing system having leakage sensing function Download PDFInfo
- Publication number
- WO2015147422A1 WO2015147422A1 PCT/KR2014/012879 KR2014012879W WO2015147422A1 WO 2015147422 A1 WO2015147422 A1 WO 2015147422A1 KR 2014012879 W KR2014012879 W KR 2014012879W WO 2015147422 A1 WO2015147422 A1 WO 2015147422A1
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- WO
- WIPO (PCT)
- Prior art keywords
- leak detection
- unit
- drive shaft
- detection unit
- disposed
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
Definitions
- the present invention relates to a sealing system for sealing a drive shaft in a rotary motion or a linear reciprocating motion, and more particularly, to a closed system having a leak detection function capable of quickly and accurately detecting the leakage through the sealing member of the sealing system. It is about.
- machines such as gearboxes, chemical pumps, agitators, mixers, reactors, transmissions, dryers, compressors, and the like have a drive shaft, and a rotary seal device is installed on the drive shaft to prevent leakage along the drive shaft.
- the rotary sealing device may be classified into a lip seal type, a mechanical seal type, and a radial shaft seal type according to the type of the sealing member.
- Korean Patent No. 10-0356502 name of the invention: sealing device of the rotating shaft member, publication date: August 17, 2001 discloses a rotary sealing device of a lip seal type
- Korean Patent Publication No. 10-2006- 0097034 name of the invention: mechanical seal and mechanical seal device, publication date: September 13, 2006 discloses a rotary seal device of the mechanical seal type.
- mechanical seal type rotational sealing device can be used even in the extreme use environment and has the advantages of high safety and sealability, but has the disadvantages of complicated structure, difficult maintenance, a large number of parts, high manufacturing cost.
- the lip seal type rotary seal device is simple in structure, easy to maintain, and low in manufacturing cost.
- the lip seal type rotary seal device has a narrower field of use due to lower durability, sealability, and safety than the mechanical seal type. there was.
- the material and structure of the lip seal type sealing member have been improved, and thus the field of use for the lip seal type rotary sealing device has been increasing.
- Embodiments of the present invention provide a closed system having a leak detection function that can quickly and accurately detect whether the sealing member leaks.
- an embodiment of the present invention provides a closed system having a leak detection function that can accurately diagnose the replacement time of the sealing member to prevent accidents due to leakage in advance.
- an embodiment of the present invention provides a closed system having a leak detection function that can accurately determine the state of the sealing member to maximize the use time of the sealing member.
- the embodiment of the present invention can inform the administrator of the state of the sealing member in real time to accurately establish the operation plan of the sealed system, leak detection that can efficiently establish the operation plan of the machine and facility installed the sealed system Provide a closed system with functions.
- an embodiment of the present invention provides a sealing system having a leak detection function that can be easily applied to the seal system of the lip seal type and mechanical seal type and radial seal type.
- a housing disposed to surround a drive shaft, a sealing member disposed a plurality of spaced apart between the housing and the drive shaft to seal between the housing and the drive shaft, and between the sealing member
- a closure device body including a spacing member disposed to maintain a spacing therebetween;
- a leak detection unit disposed in a sealed space formed between the sealing members so as to detect a leak through the sealing member, wherein the housing and the gap maintaining member are provided with a sensing hole formed in communication with the sealed space.
- at least one of an inner circumferential surface of the housing and an outer circumferential surface of the gap maintaining member provides an airtight system having a leak detection function in which an extended space portion is formed extending from the sensing hole to communicate with the sensing hole.
- the sealing system detects the sealing members in real time using the leak detection unit disposed between the sealing members, and simultaneously detects the sealing members of the housing when the housing and the fixing ring member are assembled. Even though the sensing hole of the fixing ring member is not disposed on the same axis, fluid is communicated through the expansion space, thereby improving assembly convenience.
- the sealing member may include at least one of a mechanical seal, a lip seal, a radial seal, an O-ring, an oil seal, a shaft seal, or a rubber ring.
- the expansion space may include a ring-shaped groove formed in the circumferential direction.
- at least one side of the expansion space may be provided with a ring-shaped sealing member in close contact with the outer peripheral surface of the fixed ring member and the inner peripheral surface of the housing.
- the expansion space may include a sealing member disposed on both sides of the sensing hole between the inner peripheral surface of the housing and the outer peripheral surface of the fixing ring member to form a space.
- a plurality of the sealed space may be formed in the longitudinal direction of the drive shaft.
- the leak detection unit may be disposed in at least one of the sealed spaces.
- the leak detection unit may be disposed inside or outside the detection hole.
- the sensing hole may be formed in the housing so that both ends thereof are in communication with the outside of the sealed space and the housing.
- the leak detection unit may be disposed at a position spaced apart from the sealed space to ensure an allowable distance between the sealed space.
- the leak detection unit may be installed in the detection hole through the first end of the both ends of the detection hole to communicate with the outside of the housing.
- the housing may be provided with a shielding member mounted to the first end to shield the sensing hole from the outside air.
- the leak detection unit may be integrally formed with the shielding member so that the leak detection unit is disposed at a portion in contact with the sensing hole when the shielding member is mounted.
- a plurality of sensing holes may be formed in different portions of the sealed space, and both ends may be connected to the sealed space and the expanded space, respectively.
- the leak detection unit may be disposed between the plurality of detection holes to ensure an allowable distance between the sealed space.
- the housing may be provided with an installation hole formed in communication with both ends of the expansion space portion and the outside of the housing, the mounting hole may be equipped with a shielding member to shield the detection hole from the outside air.
- the leak detection unit may be installed in the expansion space through the installation hole.
- the leak detection unit may include a sensor disposed in the sealed space to detect at least one of the material leaked into the interior of the sealed space or the environmental change of the sealed space.
- the leak detection unit may include at least one of a gas detection sensor, a liquid detection sensor, a foreign matter detection sensor, a pressure detection sensor, and a temperature detection sensor.
- a sealing apparatus includes a housing disposed to surround a drive shaft, and a sealing member spaced apart from each other between the housing and the drive shaft to seal between the housing and the drive shaft. main body; And a leak detection unit disposed in a sealed space formed between the sealing members so as to detect whether the leak is caused by the sealing member, wherein the sealed spaces are formed in plural in the longitudinal direction of the drive shaft. Includes a pressure sensor and a temperature sensor, and provides a sealed system having a leak detection function disposed in at least two sealed spaces of the plurality of sealed spaces, respectively.
- the sealing system according to the present embodiment by using the leak detection unit disposed between the sealing members in real time to detect the sealing members, at the same time measuring the temperature and pressure in each sealed space by sealing the sealing member Can be monitored more precisely.
- the leak detection unit may be arranged in plurality in one sealed space.
- the leak detection unit may include an optical sensor disposed in adjacent spaces around the sealing member so as to detect whether the sealing member is damaged.
- the leak detection unit may be disposed in one of the sealed spaces to emit light toward the sealing member, and the other one of the sealed spaces to detect light passing through the sealing member. It may include a light receiving sensor.
- the communication unit is provided in the closure device body and connected to the leak detection unit to transmit the detection value of the leak detection unit to the outside of the closure device body It may further include.
- the communication unit may be formed to communicate in at least one of a wireless method or a wired method.
- the terminal is provided to the administrator who manages the closure device body and connected to the communication unit and the signal transmission unit to display the detection value of the leak detection unit in real time
- the unit may further include.
- the sealed system with a leak detection function is provided in the control station for managing the closure device body and the drive shaft and can communicate with the communication unit to display the detection value of the leak detection unit in real time
- the display unit may further include a display unit.
- the sealing system having a leak detection function is provided in the control station for managing the closure device body and the drive shaft and the alarm to generate an alarm sound when the detection value of the leak detection unit is out of the set range
- the apparatus may further include an alarm unit communicatively coupled with the communication unit.
- control unit connected to the drive shaft operating unit for operating the communication unit and the drive shaft to control the operation of the drive shaft in accordance with the detection value of the leak detection unit It may further include.
- the sealing system with a leak detection function the communication device is provided in the closure device body and connected to the leak detection unit to transmit the detection value of the leak detection unit to the outside of the closure device body Unit, a control unit connected to the communication unit to receive the detection value of the leak detection unit, a terminal unit connected to the control unit to display in real time the detection value processed in the control unit, the detection value processed in the control unit
- the display unit may further include a display unit connected to the control unit to display in real time, and an alarm unit connected to the control unit to generate an alarm sound when a detection value of the leak detection unit is out of a setting range.
- the control unit may be communicatively connected to the terminal unit in both directions so as to control the driving of the drive shaft by receiving an instruction of the manager through the terminal unit.
- the terminal unit may include at least one of a computer, a mobile phone, a smart phone, a tablet PC, an e-book, a PDA, and a portable game machine.
- the terminal unit may be provided with software for bidirectional communication with the control unit and display of the detection value of the leak detection unit.
- the display unit and the alarm unit may be provided in a management office that manages the operation of the sealing device body and the drive shaft.
- the control unit may be configured to control the driving of the drive shaft in accordance with an instruction of the management station.
- the sealing system according to the embodiment of the present invention may quickly and accurately detect whether the sealing member leaks by placing a leak detection unit in a sealed space formed between the sealing members of the sealing device body. Therefore, in this embodiment, it is possible to accurately diagnose the time of replacement of the sealing member to prevent an accident due to leakage. In addition, in this embodiment, since the state of the sealing member can be accurately understood in real time, the use time of the sealing member can be increased to the maximum, thereby reducing the maintenance cost of the main body of the sealing device.
- the sealing system according to the embodiment of the present invention since the leak detection unit is arranged in the detection hole formed in the housing of the closure device main body, it is easy to various types of closure system without significantly changing the structure of the closure device body Applicable That is, the embodiment of the present invention can be easily applied to both the lip seal type, the mechanical seal type, and the sealing system of the radial seal type.
- the detection value of the leak detection unit can be notified to the administrator in real time through the terminal unit, the detection value of the leak detection unit in real time to the management station through the display unit and the sound unit I can tell you. Therefore, the operator of the station or the manager who is not in the field can check the state of the sealed system in real time, so that the operation plan of the sealed system can be accurately established, and the operation plan of the machine and the facility where the sealed system is installed can be efficiently established. have.
- the administrator can transmit a specific instruction to the control unit through the terminal unit, through which the administrator can appropriately control the driving of the drive shaft in real time according to the detection value of the leak detection unit. Can be.
- the sealing system because the structure to install the leak detection unit through the detection hole in the housing outside of the body of the closure device, it is possible to maintain the leak detection unit without disassembling the closure device body
- the leak detection unit can be easily replaced with another type. Therefore, in the present embodiment, the leak detection unit may be variously changed according to the installation target of the sealing system, and thus, one sealing device body may be applied to various fields.
- FIG. 1 is a main configuration diagram showing a closed system having a leak detection function according to an embodiment of the present invention.
- FIG. 2 is an enlarged view of "A" shown in FIG. 1.
- FIG. 3 is a front sectional view showing a cross section taken along the line I-I shown in FIG.
- 4 to 6 are front cross-sectional views showing various installation structures of the leak detection unit shown in FIG.
- FIG. 7 is a main block diagram showing a modified example of the closed system with a leak detection function according to an embodiment of the present invention.
- FIG 8 and 9 are main components showing another example of a closed system having a leak detection function according to an embodiment of the present invention.
- FIG. 10 is a configuration diagram schematically showing a control configuration of a leak detection system according to an embodiment of the present invention.
- FIG. 11 is a main configuration diagram showing a closed system having a leak detection function according to another embodiment of the present invention.
- FIG. 12 is an enlarged view illustrating “B” illustrated in FIG. 11.
- FIG. 13 is a block diagram illustrating a closed system having a leak detection function according to another exemplary embodiment of the present invention.
- FIG. 1 is a main configuration diagram showing a closed system 100 having a leak detection function according to an embodiment of the present invention.
- FIG. 2 is an enlarged view showing "A" shown in FIG. 1
- FIG. 3 is a front sectional view showing a cross section taken along the line I-I shown in FIG.
- the closure system 100 having the leak detection function includes a closure device body 110 and a leak detection unit 120.
- mechanical devices such as stirrers, reactors, and mixers are widely used in petrochemical, fine chemical, medical, pharmaceutical, and food fields.
- Such mechanical devices may be provided with a drive shaft that rotates or linearly reciprocates at a constant speed, and a portion of the drive shaft may be sealably provided with the sealing system 100.
- the driving shaft is described as being in a state of rotating or linearly reciprocating.
- the driving shaft is not limited thereto and may include a state in which the driving shaft is substantially stationary or the driving shaft is moved or vibrated in the radial direction.
- the closure system 100 is a device for sealing the drive shaft 102 in a rotational or linear reciprocating motion.
- the closure system 100 may be disposed on an outer circumference of the drive shaft 102 to surround a portion of the drive shaft 102 or may be disposed on an outer circumference of the sleeve to surround a sleeve disposed on a portion of the drive shaft 102.
- the sleeve may be disposed in a cylindrical shape on the outer circumference of the drive shaft 102, and may be combined with the drive shaft 102 to rotate together with the drive shaft 102.
- the sleeve is described as being omitted for convenience of description, but the present invention is not limited thereto, and the sleeve may be disposed according to design conditions and situations of the sealing system.
- the sealing device body 110 is a device that seals around the drive shaft 102.
- the sealing device body 110 may be formed in a structure surrounding the circumference of the drive shaft 102.
- the closure device body 110 may include a housing 112 and a sealing member 114.
- the housing 112 may be formed in a hollow cylindrical structure surrounding the outer circumference of the drive shaft 102. Therefore, the driving shaft 102 may be disposed to penetrate the central portion of the housing 112.
- the housing 112 may include a first housing body 130, a fixing ring member 132, and a second housing body 134.
- the first housing body 130 may be formed in a cylindrical shape surrounding the outer circumference of the drive shaft 102.
- One side surface of the first housing body 130 may be formed with a through hole through which the drive shaft 102 is to be rotated or linearly moved.
- An opening may be formed at the other side of the first housing body 130 such that the fixing ring member 132 and the second housing body 134 are inserted into the first housing body 130.
- the fixing ring member 132 may be disposed on an inner circumferential surface of the first housing body 130.
- the fixing ring member 132 is a component that serves to fix the sealing member 114 inside the first housing body 130. That is, the plurality of fixing ring members 132 may be stacked in the longitudinal direction of the drive shaft 102, and the sealing members 114 may be disposed between the fixing ring members 132.
- the second housing body 134 may be coupled to the first housing body 130 such that one end thereof is inserted into the opening of the first housing body 130.
- One end of the second housing body 134 as described above may contact the fixing ring member 132 within the first housing body 130.
- the second housing body 134 and the first housing body 130 may be fastened with the fastening members 136 and 138.
- the pressure at which one end of the second housing body 134 is forcibly in close contact with the fixing ring members 132 may be increased. That is, the fixing ring members 132 and the sealing member 114 are very firmly and stably between the first housing body 130 and the second housing body 134 by the fastening force of the fastening members 136 and 138. Can be fixed.
- Sealing member 114 is a sealing element that seals the gap between housing 112 and drive shaft 102.
- the sealing member 114 may include various types of sealing elements such as mechanical seals, lip seals, radial shaft seals, O-rings, oil seals, shaft seals, rubber rings, and the like.
- the sealing member 114 may be disposed to be spaced apart from each other in the axial direction of the drive shaft 102 between the housing 112 and the drive shaft 102.
- the sealing member 114 will be described as a lip seal for convenience of description.
- the sealing member 114 may be made of a lip seal formed of a disc structure penetrating the center thereof.
- the sealing member 114 as described above may include a fixing part 114a and a lip seal part 114b.
- the fixing portion 114a is a portion disposed between the fixing ring members 132. Therefore, the fixing part 114a may be fixed to the inside of the housing 112 while being fitted between the fixing ring members 132.
- the fixing part 114a as described above may be formed in a ring shape corresponding to the fixing ring members 132.
- the lip seal part 114b may be formed in a structure extending inclined toward the surface of the drive shaft 102 at the inner circumferential portion of the fixing part 114a. That is, the inner circumferential end of the lip seal part 114b may be in contact with the surface of the drive shaft 102, and the outer circumferential end of the lip seal part 114b may be connected to the fixing part 114a. Therefore, the lip seal portion 114b may be formed in a ring shape of a disc.
- the lip seal part 114b as described above may be formed of a rubber material or a plastic material.
- the lip seal part 114b may be formed of Teflon (PTFE, PTFE, Poly Tetra Fluoro Ethylene) material having excellent heat resistance, non-adhesiveness, insulation stability, low coefficient of friction, and chemical stability.
- Teflon PTFE, PTFE, Poly Tetra Fluoro Ethylene
- a sealed space S1 may be formed between the sealing members 114.
- the sealed space S1 as described above means a space defined by the outer circumferential surface of the drive shaft 102, the side surfaces of two sealing members 114 disposed adjacent to each other, and the inner circumferential surface of the fixing ring member 132.
- a plurality of the sealed spaces S1 may be formed in the axial direction of the driving shaft 102.
- the leak detection unit 120 is a device that detects a leak through the sealing member 114.
- the leak detection unit 120 may be disposed in the sealed space S1. That is, the leak detection unit 120 may be disposed between the sealing members 114.
- the plurality of sealed spaces S1 may be disposed to be spaced apart from each other in the longitudinal direction of the drive shaft 102.
- the leak detection unit 120 may be disposed in at least one of the sealed spaces S1.
- the leak detection unit 120 is disposed in any one of the sealed spaces S1.
- the housing 112 may be provided with a sensing hole 116 formed in communication with the sealed space (S1).
- the leak detection unit 120 may be installed inside or outside the detection hole 116. That is, the leak detection unit 120 may be installed inside the detection hole 116 or may be installed in a component extending outwardly from the detection hole 116.
- a part extending outward from the sensing hole 116 is typically a pipe or tube connected to one end of the housing 112 so as to be in communication with the sensing hole 116.
- the leak detection unit 120 is disposed inside the detection hole 116 for the convenience of description.
- the sensing hole 116 as described above may be formed to penetrate the first housing body 130. Therefore, the first end of the sensing hole 116 may be connected in communication with the outside of the housing 112, and the second end of the sensing hole 116 may be connected in communication with the sealed space S1.
- an expansion space portion () formed along the edge of the fixing ring member 132 to communicate with the sensing hole 116 is a ring-shaped groove. It may be configured in the form.
- the width of the expansion space 116a is preferably larger than the diameter of the sensing hole 116. Therefore, in the assembling process of the first housing body 130 and the fixing ring member 132, the sensing hole part 116 formed in the first housing body 130 and the sensing hole part 116 formed in the fixing ring member 132 are the same. Since the fluids communicate with each other even if they are not arranged on the axis line, the assembly convenience can be improved.
- both sides of the expansion space 116a formed in the fixing ring member 132 are provided with a ring-shaped sealing member 133 such as an O-ring, respectively, so that an outer circumferential surface of the fixing ring member 132 and the first housing body 130 are provided.
- the groove-type expansion space 116a is formed on the outer circumferential surface of the fixing ring member 132, but is described as an example. However, in the sensing hole 116 of the inner circumferential surface of the first housing body 130. It may be possible to form the expansion space 116a by forming a groove in a corresponding position, or by forming a groove in the outer peripheral surface of the fixing ring member 132 and the inner peripheral surface of the first housing body 130, respectively.
- the leak detection unit 120 may be disposed at an appropriate position of the detection hole 116 based on the sealed space S1. That is, the leak detection unit 120 may be disposed at a position properly spaced from the sealed space S1 according to the design conditions and the situation of the sealed system. Therefore, the leak detection unit 120 can secure the allowable distance D of an appropriate size between the sealed space S1.
- the leak detection unit 120 may be expected to have improved sensitivity as it is disposed closer to the sealed space S1, but may be adversely affected from the sealed space S1, thereby increasing the risk of breakage or malfunction. have.
- the temperature and pressure of the enclosed space S1 may be changed in an instantaneous manner depending on the operating conditions of the enclosed system 100 and the surrounding conditions.
- the leak detection unit 120 is disposed closer to the sealed space S1
- the possibility of breakage of the leak detection unit 120 due to the instantaneous fluctuation of temperature and pressure is increased.
- a material causing the performance of the leak detection unit 120 may be partially generated inside the sealed space S1 or partially introduced into the sealed space S1 depending on the operating conditions and surrounding conditions of the sealed system 100. Can be.
- the leak detection unit 120 is disposed closer to the sealed space S1, the possibility of contact of the material and the leak detection unit 120 increases.
- the shock in which the temperature and the pressure suddenly fluctuate within the sealed space S1 can be buffered, and the leak detection unit The likelihood of performance degradation material of 120 being transferred to the leak detection unit 120 may be reduced.
- the leak detection unit 120 may be installed inside the detection hole 116 through the first end of the detection hole 116. Therefore, the leak detection unit 120 can be easily installed or replaced without disassembling the seal body 110.
- the first end of the sensing hole 116 is preferably blocked by the sensing hole 116 and the outside of the housing 112 so that the sealed state of the sealed space (S1) is not broken. That is, the shielding member 140 may be mounted at the first end of the sensing hole 116. If the shielding member 140 does not block the first end of the sensing hole 116 as described above, foreign matter may flow into the sealed space S1 through the sensing hole 116. Therefore, when the leak detection unit 120 is installed inside the detection hole 116 through the first end of the detection hole 116, the shielding member 140 is mounted on the first end of the detection hole 116 to be sealed. The sealability of the space S1 can be secured.
- the leak detection unit 120 may be integrally formed with the shielding member 140. That is, the leakage detection unit 120 may also be installed by forming a single component of the shielding member 140 and the leak detection unit 120 only by mounting the shielding member 140. Here, the leak detection unit 120 may be disposed at a portion in contact with the detection hole 116 when the shield member 140 is mounted.
- the leak detection unit 120 and the shielding member 140 are described as being integrally formed in the present embodiment, the present invention is not limited thereto and may be variously modified according to design conditions and circumstances of the closed system.
- the shielding member 140 may be formed in a bolted stopper structure. That is, the shielding member 140 may include a fastening part 142 and a fastening part 144.
- one end of the fastening part 142 may be inserted into the first end of the sensing hole 116.
- One end of the fastening part 142 and the first end of the sensing hole part 116 may be coupled in a sealing manner by a screw fastening method.
- the tightening part 144 may be connected to the other end of the fastening part 142 and disposed outside the housing 112. That is, the fastening part 142 can be easily rotated through the operation of the tightening part 144.
- the fastening part 144 may be formed in a hexagonal head shape that is connected to the wrench for the screw fastening operation of the fastening part 142.
- the leak detection unit 120 may be disposed at one end of the fastening part 142.
- the separation distance D between the leak detection unit 120 and the sealed space S1 may also be adjusted according to the length of the fastening part 142.
- the shielding member 140 may further include a seal.
- the seal may be disposed between the fastening portion 142 and the housing 112, or may be disposed between the fastening portion 144 and the housing 112.
- an o-ring or a gasket may be used as the seal body.
- the sealing member is omitted in the shielding member 140.
- 4 to 6 are front cross-sectional views illustrating various installation structures of the leak detection unit 120 shown in FIG. 1.
- the sensing hole 117 illustrated in FIG. 4 may be formed in an inclined structure differently from the sensing hole 116 illustrated in FIGS. 1 to 3. Specifically, the sensing hole 116 illustrated in FIGS. 1 to 3 has a structure long in the radial direction from the center of the driving shaft 102, but the sensing hole 117 illustrated in FIG. 4 is formed of the driving shaft 102. It is a structure formed to cross at a predetermined angle to a virtual straight line formed in the radial direction from the center.
- the sensing hole 117 may be formed to be inclined in the rotation direction of the drive shaft 102. Therefore, when the drive shaft 102 is rotated, gas, liquid, or foreign matter, which flows in the rotation direction together with the drive shaft 102, may smoothly flow into the sensing hole 117.
- an expansion space portion 116a which extends larger than the diameter of the sensing hole 116 and communicates with the sensing hole 116 may be formed. have.
- the expansion space 116a is formed as described above, in the region where the expansion space 116a is formed, the detection hole portion 116 formed in the first housing body 130 and the detection hole portion formed in the fixing ring member 132 ( Since the fluids are in communication with each other even if 116 is not disposed on the same axis, the assembly convenience of the first housing body 130 and the fixing ring member 132 may be improved.
- a plurality of sensing holes 118 illustrated in FIG. 5 are formed in different portions of the sealed space S1 different from the sensing holes 116 illustrated in FIGS. 1 to 3, and a plurality of sensing holes are included.
- One end is connected to one side of the sealed space (S1), the other end is connected to the expansion space 116a formed on the outer periphery of the fixing ring member 132, a plurality of through the expansion space (116a)
- the sensing hole 118 may be connected in communication. That is, the sensing hole 118 may be formed in the fixing ring member 132 so as not to be connected in communication with the external space of the housing 112.
- the plurality of sensing holes 118 may include a first sensing hole 118a and a second sensing hole 118b which are formed to be parallel to each other in the fixing ring member 132.
- the sensing hole 118 When the sensing hole 118 is formed as described above, a flow flowing along the inside of the sensing hole 118 may occur, and thus, temperature, liquid, foreign matter, gas, etc. in the sealed space S1 may be detected. 118 can be effectively delivered.
- the leak detection unit 120 may be appropriately disposed between both ends of the detection hole 118 to ensure a sufficient distance (D) between the sealed space (S1).
- the housing 112 may include an expansion space 116a and an installation hole formed at both ends thereof in communication with the outside of the housing 112.
- the shielding member 140 may be inserted into the installation hole, and the leak detection unit 120 may be disposed inside the sensing hole 118 through the installation hole along with the shielding member 140.
- a plurality of sensing holes 119 illustrated in FIG. 6 may be formed in different portions of the sealed space S1, unlike the sensing holes 116 illustrated in FIGS. 1 to 3.
- the sensing hole 119 of the present exemplary embodiment may be formed such that the first sensing hole 118a and the second sensing hole 118b are inclined.
- the sensing hole 119 of the present embodiment may include a first sensing hole 119a and a second sensing hole 119b formed in the fixing ring member 132.
- the first sensing hole 119a and the second sensing hole 119b illustrated in FIG. 6 may be formed similarly to the first sensing hole 118a and the second sensing hole 118b illustrated in FIG. 5.
- the first sensing hole 119a and the second sensing hole 119b illustrated in FIG. 6 are formed to be inclined along the rotational direction of the drive shaft 102. It is different from the second sensing hole 118b. That is, the first sensing hole 119a and the second sensing hole 119b may not be parallel to each other.
- the first sensing hole 119a is formed in a direction parallel to a normal line facing forward with respect to the rotational direction of the drive shaft 102 from a point of contact with the outer circumferential surface of the sealed space, and the second sensing hole 119b is formed in the first direction.
- the sensing hole 119a In a position spaced forward from the sensing hole 119a with respect to the rotational direction of the drive shaft 102, it may be formed in a direction parallel to a normal line that is rearward with respect to the rotational direction of the drive shaft 102.
- the leak detection unit 120 may be appropriately disposed between both ends of the detection hole 119 to sufficiently secure the allowable distance D between the sealed space S1.
- the housing 112 may include an installation hole formed at both ends of the recess 116a of the fixing ring member 132 and both ends of the housing 112.
- the shielding member 140 may be inserted into the installation hole.
- the sensing hole 119 according to the present exemplary embodiment may be formed in various structures according to the design conditions and the circumstances of the closed system, and the installation structure of the leak detecting unit 120 according to the sensing hole 119. It may also be variously changed.
- the sensing hole 119 according to the present exemplary embodiment may be inclined in the direction of linear reciprocation of the drive shaft 102, or both ends of the sensing hole 119 may be reciprocated in the linear reciprocation of the drive shaft 102. It may be formed in a structure that is connected in communication with each other in the closed space (S1).
- FIG. 7 is a main block diagram showing a modified example of the closed system with a leak detection function according to an embodiment of the present invention. That is, FIG. 7 shows a variant of the closure system 100 shown in FIGS. 1 to 4.
- the expansion space 116b of the hermetic system may be formed on the inner circumferential surface of the first housing body 130, the outer circumferential surface of the fixing ring member 132, and both sides of the sensing hole 116, respectively. It is defined by a ring-shaped sealing member 133 disposed in close contact with the first housing body 130 and the fixed ring member 132, respectively.
- the expansion space 116a is formed in a ring-shaped recess, but in FIG. 7, the expansion space 116b is formed in a ring-shaped sealing member 133 disposed on both sides of the sensing hole 116. It can be formed by.
- the ring-shaped member as shown in FIGS. 1 to 3 is formed between the first housing body 130 and the fixed ring member 132. It is not necessary to process the groove separately, it is possible to prevent the leakage occurs through the coupling surface between the first housing body 130 and the fixing ring member 132.
- FIGS. 8 and 9 are main configuration diagrams showing another example of a closed system (100 ', 110 ") having a leak detection function according to an embodiment of the present invention.
- the sealing system 100 ′ is characterized in that the sensing holes 116 and 116 ′ are formed in all the sealed spaces S1 and S2, respectively. That is, in FIGS. 1 to 6, the sensing hole 116 is formed only in any one of the sealed spaces S1, but in FIG. 8, the sensing holes 116 and 116 ′ are separately formed in the sealed spaces S1 and S2. Both are formed structures. Meanwhile, the leak detection unit 120 and the shielding member 140 may be provided in the detection hole parts 116 and 116 ', respectively.
- the leak detection unit 120 may simultaneously detect whether or not leaks to all the sealed spaces S1 and S2. That is, it is possible to diagnose the state of all the sealing members 114 provided in the closure device body 110 'at the same time, and thus it is possible to quickly and accurately detect the leakage of each sealing member 114.
- the leak detection unit 120 disposed in each of the sealed spaces S1 and S2 includes a pressure sensor and a temperature sensor, and simultaneously measures the temperature and the pressure of the sealed spaces S1 and S2 to seal the sealing member.
- the leak or abnormality of the 114 can be detected. That is, the contact area between the lip seal portion 114b of the sealing member 114 and the drive shaft 102 may be changed according to the pressure applied to the front of the sealing member 114. As the contact area is increased, the adjacent sealing by frictional heat increases. The temperature of the space S1 or S2 rises. Therefore, when the temperature of the sealed spaces S1 and S2 adjacent to the sealing member 114 is measured, the sealing member 114 before the pressure fluctuation of the sealed spaces S1 and S2 occurs due to breakage of the sealing member 114. Can detect abnormality of.
- the leak detection unit 120 disposed in each of the sealed spaces S1 and S2 may improve the detection reliability by configuring a plurality of the leak detection units 120 in preparation for the inability to detect the sensor due to malfunction or damage. That is, even when any one of the plurality of sensors is damaged or malfunctions, other sensors installed together in the corresponding sealed spaces S1 and S2 provide measurement signal values, thereby improving the safety performance of the sealed system 110 '. Can be improved.
- the sealing system 110 "according to this embodiment is characterized in that the sealing member 115 of the mechanical seal type is provided. That is, the sealing member is one of the lip seal, the mechanical seal or the radial seal.
- the sealing member 114 shown in FIGS. 1 to 6 may be formed of a lip seal, and the sealing member 115 of FIG. 9 may be formed of a mechanical seal.
- the sleeve 104 may be mounted on an outer circumference of the drive shaft 102 to rotate together with the drive shaft 102, and the closure device body 110 ′′ may have a sleeve structure to surround the sleeve 104. It may be disposed on the outer circumference of the 104.
- the sealing member 115 of the mechanical seal type includes a central support ring 115a fixed to the sleeve 104 and a first fixing ring fixed to the housing 112 at positions spaced apart from both sides of the central support ring 115a, respectively.
- the first sealing ring 115d and the second fixing ring disposed in the sleeve 104 to be movable between the 115b and the second fixing ring 115c and the first fixing ring 115b and the central support ring 115a.
- the second sealing ring 115e, the first sealing ring 115d and the first fixing ring 115b disposed in the sleeve 104 may be brought into close contact with each other so as to be movable between the ring 115c and the central support ring 115a.
- the second sealing ring to closely contact the first elastic body 115f, the second sealing ring 115e, and the second fixing ring 115c disposed between the first sealing ring 115d and the central support ring 115a.
- the second elastic body 115g disposed between the 115e and the central support ring 115a may be provided.
- first sealing ring 115d and the second sealing ring 115e may be axially moved along the sleeve 104 in a sealably overlapping manner with the central support ring 115a.
- first sealing ring 115d and the first fixing ring 115b may be formed with a first sealing contact portion C1 compressed by the elastic force of the first elastic body 115f, and the second sealing ring 115e may be formed.
- the second fixing ring 115c may have a second sealing contact portion C2 that is compressed by the elastic force of the second elastic body 115g.
- the sealed space S1 is formed on the outer circumferential surface of the central support ring 115a, the first sealing ring 115d, and the second sealing ring 115e, the inner circumferential surface of the housing 112, and the first fixing ring ( 115b) and the space defined by the side of the second fixing ring 115c.
- the housing 112 may be provided with a detection hole 116 ′′ in which the leak detection unit 120 and the shielding member 140 are mounted, and both ends of the detection hole 116 ′′ may be formed in the sealed space S3 and the housing 112. It can be connected to the outside of the).
- the leak detection unit 120 and the shield member 140 is the same as the configuration shown in Figures 1 to 6, a detailed description thereof will be omitted.
- the leak detection structure according to the embodiment of the present invention may be simply applied to the mechanical seal type sealing system 100 ′′ as well as the lip seal type sealing system 100 and 100 ′.
- FIG. 10 is a configuration diagram schematically showing a control configuration of a leak detection system according to an embodiment of the present invention.
- the leak detection unit 120 may detect at least one of a substance leaked into the sealed space S1 or an environmental change of the sealed space S1. Sensors 121, 122. 123, and 124.
- the material leaked into the interior of the sealed space (S1) may leak in the form of at least one of gas, liquid, or foreign matter, and the environmental change of the sealed space (S1) may be caused by at least one of temperature or pressure. Can be changed.
- the leak detection unit 120 may include at least one of the gas detection sensor 121, the liquid detection sensor 122, the foreign matter detection sensor 123, the pressure detection sensor 124, and the temperature detection sensor 125. It may include.
- Gas detection sensor 121 is a sensor for detecting the leaked gas leaked into the closed space (S1)
- the liquid detection sensor 122 is a sensor for detecting the leaked liquid leaked into the sealed space (S1)
- foreign matter detection sensor ( 123 is a sensor for detecting a foreign matter invaded into the closed space (S1).
- the pressure sensor 124 is a sensor for detecting a change in pressure in the sealed space (S1)
- the temperature sensor 125 is a sensor for detecting a change in temperature in the sealed space (S1).
- the leak detection unit 120 is connected to the gas detection sensor 121 for convenience of description. It is described as being formed.
- the leak detection unit 120 may include a gas detection sensor 121, a liquid detection sensor 122, a foreign matter detection sensor 123, a pressure detection sensor 124, or a temperature detection sensor ( Any one of 125) can be selected and configured, or a plurality can be combined suitably.
- the configuration of the leak detection unit 120 as described above may be variously changed according to the design conditions and circumstances of the closed system.
- the airtight system 100 having the leak detection function according to the present embodiment may further include a communication unit 150.
- the communication unit 150 is a device for transmitting the detection value of the leak detection unit 120 to the outside of the sealed device body 110.
- the communication unit 150 may transmit a signal in at least one of a wireless method or a wired method.
- the communication unit 150 may be provided in the closure device body 110 to be connected to the leak detection unit 120 to enable signal transmission.
- 1 to 9 illustrate that the communication unit 150 is provided in the fastener 144 of the shielding member 140. That is, the communication unit 150 may be formed as a module together with the shielding member 140 similarly to the leak detection unit 120.
- the communication unit 150 and the leak detection unit 120 may be connected to each other in the shielding member 140 to enable signal transmission.
- the shield member 140, the leak detection unit 120, and the communication unit 150 configured as described above are formed as a single module, the leak detection unit 120 and the communication unit may be formed by only a detachable operation of the shield member 140. 150 may also be installed together, and the maintenance and management of the leak detection unit 120 and the communication unit 150 may be performed very easily.
- the present invention is not limited thereto and may be disposed at various sites according to the design conditions and circumstances of the closed system.
- the communication unit 150 may be disposed on an outer surface of the housing 112 or may be disposed at a position spaced apart from the closure device body 110 by a predetermined distance. In this case, the task of connecting the communication unit 150 and the leak detection unit 120 to enable signal transmission may be difficult and complicated.
- the airtight system 100 having the leak detection function according to the present embodiment may further include a terminal unit 160.
- the terminal unit 160 may be formed in a portable shape so as to be individually supplied to a manager of the sealed apparatus main body 110.
- the terminal unit 160 may include at least one of a computer, a mobile phone, a smart phone, a tablet PC, an e-book, a PDA, or a portable game machine.
- the terminal unit 160 as described above receives a display unit for displaying a detection value of the leak detection unit 120, an operation unit for inputting an administrator's instruction, and a detection value of the leak detection unit 120 or receiving an instruction of an administrator.
- a communication unit for transmitting may be provided. Therefore, the manager of the closure device body 110 may check the detection value of the leak detection unit 120 in real time, and may be able to quickly cope with it according to the detection value of the leak detection unit 120.
- the airtight system 100 having the leak detection function according to the present embodiment may further include a display unit 172 and an alarm unit 174.
- the display unit 172 or the alarm unit 174 may be provided in the management station 170 for managing the closed system 100 and the mechanical device.
- the station 170 is a control tower in which the managers stay, and not only manages the operating state of the sealed system 100 and the mechanical device in real time, but also responds quickly to a failure or malfunction in response to an accident and a decrease in production.
- the management station 170 as described above is generally located near the installation place of the mechanical device, but is not limited thereto and may be installed in various places according to the surrounding situation.
- the display unit 172 may display the detection value of the leak detection unit 120 in real time, and the alarm unit 174 may generate an alarm sound when the detection value of the leak detection unit 120 is out of a setting range.
- the display unit 172 may include a display device formed of a monitor or a lamp.
- the alarm unit 174 may generate a warning sound when the detection value of the leak detection unit 120 is included in the dangerous section, and may perform an alarm function according to a preset condition. Therefore, the display unit 172 or the alarm unit 174 may be provided with a communication unit for receiving the detection value of the leak detection unit 120.
- the airtight system 100 having the leak detection function according to the present embodiment may further include a control unit 180.
- the control unit 180 may be connected to the communication unit 150 and the drive shaft operation unit 190 so as to transmit a signal to control the operation of the drive shaft 102 according to the detection value of the leak detection unit 120.
- the drive shaft operation unit 190 is a member that rotates the drive shaft 102 or linearly reciprocates the drive shaft 102 in the axial direction.
- the control unit 180 may be connected to the communication unit 150 so as to be capable of transmitting a signal so as to receive a detection value of the leak detection unit 120.
- the control unit 180 may be communicatively connected with the drive shaft operating unit 190 to appropriately adjust the operation of the drive shaft 102 according to the detection value of the leak detection unit 120.
- the present embodiment will be described as a rotary machine having a drive shaft in which a mechanical device rotates for convenience of description, and accordingly, the drive shaft operating unit 190 rotates the drive shaft 102.
- the present invention is not limited thereto, and the present embodiment may be applied to a mechanical device having a drive shaft that is linearly reciprocated, or a mechanical device having a drive shaft capable of both rotational and linear reciprocating motions.
- control unit 180 may have several operation modes.
- the first operation mode of the control unit 180 is a mode for transmitting the detection value of the leak detection unit 120 to at least one of the terminal unit 160, the display unit 172, or the alarm unit 174.
- the detection value of the leak detection unit 120 may be directly transmitted to the terminal unit 160 and the display unit 172 or the alarm unit 174 through the communication unit 150.
- the communication unit 150 transmits the detection value of the leak detection unit 120 to the control unit 180, and the control unit 180 transmits the detection value of the leak detection unit 120 to the terminal unit.
- the description will be made as appropriate disassembly for the 160 and the display unit 172 or the alarm unit 174.
- control unit 180 may change the detection value of the leak detection unit 120 into a signal of an appropriate type according to an object for transmitting the detection value of the leak detection unit 120.
- control unit 180 may change the detection value of the leak detection unit 120 to a signal type that may be processed by the display unit 172, the alarm unit 174, or the terminal unit 160.
- control unit 180 may directly transmit a signal according to the distance and movement with the display unit 172, the alarm unit 174, or the terminal unit 160, or may transmit the signal using a national communication network.
- the control unit 180 is a leak detection unit 120 displays the detected value display unit. 172 or alert unit 174 directly.
- the above method has a very good advantage in terms of security.
- the control unit 180 is the leakage detection unit 120 to detect the detection value through the national communication network terminal unit 160 Can be sent to.
- the above method has an advantage that even if the manager is not in the field, the national network can be checked in real time.
- the second operation mode of the control unit 180 is a mode for adjusting the operation of the drive shaft operation unit 190 after receiving instructions from the management station 170 or the terminal unit 160.
- the signal transmitted from the management station 170 or the terminal unit 160 may be analyzed and then the driving algorithm of the driving shaft 102 may be changed and transmitted to the driving shaft operating unit 190.
- control unit 180 may control the operation of the drive shaft 102 according to the intention of the administrator transmitted through the management station 170 or the terminal unit 160. Therefore, the control unit 180 may be communicatively connected to the management station 170 or the terminal unit 160 in both directions.
- the terminal unit 160 may be installed with software for displaying the detection value of the two-way communication with the control unit 180 and the leak detection unit 120. That is, the terminal unit 160 may be used as the terminal unit 160 by installing leak detection software on a smart phone or tablet PC that has been used previously, without having to separately prepare. Therefore, the cost for separately manufacturing the terminal unit 160 can be reduced, and it can be used in various environments with only a simple operation of modifying the software.
- the software may include an embedded program that can be installed in the terminal unit 160, an installation program for a computer, an application program for a smartphone or a tablet PC, and the like.
- the sealing device body 110 is mounted on the drive shaft 102 of the rotating machine in a state where the shielding member 140 provided with the leak detection unit 120 and the communication unit 150 is installed in the detection hole 116. , Operate the rotary machine.
- the drive shaft 102 of the rotary machine rotates at a set speed, and the gas detection sensor 121 of the leak detection unit 120 detects the sealed space S1 formed between the sealing members 114.
- the communication unit 150 transmits the detection value of the leak detection unit 120 to the control unit 180 in real time.
- the control unit 180 appropriately changes the detection value of the leak detection unit 120 and distributes it to the management station 170 and the terminal unit 160.
- the display unit 172 of the management station 170 displays the signal transmitted through the control unit 180, and the alarm unit 174 of the management station 170 analyzes the signal transmitted through the control unit 180 and leaks it. If the detected value of the sensing unit 120 is out of the setting range, a warning sound is generated. In addition, the terminal unit 160 displays the detection value of the leak detection unit 120 in real time through a specific application.
- the external managers check whether the sealed system 100 is leaked through the terminal unit 160, and when the leaked system 100 is leaked, an instruction related to the operation of the rotating machine is transmitted to the control unit 180. do.
- control unit 180 appropriately changes the operation algorithm of the drive shaft 102, and controls the operation of the drive shaft operation unit 190 by using the operation algorithm.
- the operation of the drive shaft operating unit 190 may be stopped, and if the possibility of leakage of the sealing system 100 is suspected, the speed of rotation of the driving shaft 102 may be reduced. It is possible to control the operation of the drive shaft operation unit 190 in the direction.
- FIG. 11 is a main configuration diagram showing a closed system 200 having a leak detection function according to another embodiment of the present invention
- FIG. 12 is an enlarged view showing "B" shown in FIG.
- the leak detection unit 200 having a leak detection function according to another embodiment of the present invention differs from the leak detection system 100 shown in FIGS. 1 to 3 in the leak detection unit.
- the allowable distance (D) formed between the 220 and the sealed space (S1) is freely adjustable, and the groove-shaped expansion formed between the first housing body 130 and the fixing ring member 132
- the space portion 116c is different in that it is formed on the inner circumferential surface of the first housing body 130.
- the leak detection unit 220 may include a sensor unit 121 and a length adjusting unit 222.
- the sensor unit 121 will be described as a gas detection sensor 121 for detecting the leaking gas in the same manner as the closed system 100 shown in FIGS.
- the present invention is not limited thereto, and the sensor unit 121 may use other types of sensors capable of detecting leakage of the closed system 200.
- the length adjusting unit 222 may be provided to adjust the length between the shielding member 140 and the sensor unit 121. Accordingly, the sensitivity of the sensor unit 121 may be more accurately maintained by appropriately adjusting the allowable distance D of the sensor unit 121 according to the design conditions and circumstances of the closed system 200. In particular, since it can be used in the various types of the sealing system 200 without replacing the parts, the parts sharing of the shielding member 140 and the leak detection unit 220 can be implemented.
- One end of the length adjusting unit 222 may be connected to the shielding member 140, and the other end of the length adjusting unit 222 may be connected to the sensor unit 121. Therefore, the sensor unit 121 may be connected to the communication unit 150 so as to transmit a signal through the length adjusting unit 222 and the shielding member 140.
- the length adjusting unit 222 as described above may be formed in various structures capable of adjusting the length.
- the length adjusting part 222 may be formed of a screw fastening structure, a gear coupling structure, or a folding structure.
- the screw fastening structure of the length adjusting part 222 is a structure in which the male screw portion and the female screw portion are formed to correspond to each other at one end of the length adjusting portion 222 and a part of the shielding member 140. Therefore, when one end of the length adjusting part 222 or a part of the shielding member 140 is rotated, the length of the length adjusting part 222 is inserted into the shielding member 140 or is separated from the shielding member 140. Can be adjusted.
- the gear coupling structure of the length adjusting unit 222 is a structure in which the length adjusting unit 222 is formed of a worm gear or a rack and a pinion gear. That is, a worm or a rack may be disposed at one end of the length adjusting part 222, and a worm wheel or pinion gear may be disposed at a portion of the shielding member 140.
- the length adjustment unit 222 is formed to be adjustable in length in a folding structure.
- One end of the length adjusting unit 222 may be provided with a sensor unit 121.
- the shielding member 140 may be connected to the other end of the length adjusting part 222.
- the length adjusting part 222 as described above may be formed in a shape in which a plurality of cylinders (222a, 222b, 222c) are inserted into each other and overlapped. That is, the length adjusting unit 222 may be formed in a structure similar to the FM receiving antenna.
- the length adjusting rod 222 may be provided with a length adjusting rod (not shown), and the length of the length adjusting portion 222 may be adjusted by pushing or pulling the length adjusting rod.
- a ring-shaped groove 116c is formed along the edge of the fixing ring member 132 to communicate with the sensing hole 116 at a position corresponding to the sensing hole 116 of the inner circumferential surface of the first housing body 130.
- the width of the driving shaft in the longitudinal direction of the groove 116c is preferably larger than the diameter of the sensing hole 116. Therefore, in the assembling process of the first housing body 130 and the fixing ring member 132, the sensing hole part 116 formed in the first housing body 130 and the sensing hole part 116 formed in the fixing ring member 132 are the same. Since the fluids communicate with each other even if they are not arranged on the axis line, the assembly convenience can be improved.
- FIG. 13 is a diagram showing a main configuration of a closed system 300 having a leak detection function according to another embodiment of the present invention.
- a leak detection unit 320 having a leak detection function 300 is different from the seal system 100 shown in FIGS. 1 to 3. ) Is disposed in the sealed spaces S1 and S2 adjacent to each other with respect to the sealing member 114.
- the leak detection unit 320 may include optical sensors 322 and 324 disposed in the enclosed spaces S1 and S2 adjacent to each other about the sealing member 114. Therefore, unlike the leak detection unit 120 illustrated in FIGS. 1 to 3, in this embodiment, the leak detection unit 320 is disposed on both sides of the sealing member 114.
- the leak detection unit 320 as described above may include a light emitting sensor 322 and a light receiving sensor 324.
- the light emitting sensor 322 may be disposed in any one of the sealed spaces S1 and S2 disposed at both sides of the sealing member 114, and the light receiving sensor 324 may be disposed at both sides of the sealing member 114. It may be arranged in the other one (S2) of the disposed closed space (S1, S2).
- the light emitting sensor 322 may irradiate light toward the sealing member 114, and the light receiving sensor 324 may detect light passing through the sealing member 114.
- the sealing member 114 may be broken and it may be inferred that a gap exists, which is likely to leak from the sealing member 114. It can be seen as meaning.
- two sensing holes 316 and 317 may be formed in the sealing apparatus main body 310 so as to be connected to different sealing spaces S1 and S2, respectively.
- the shielding member 140 provided with the light emitting sensor 322 may be coupled to any one of the two sensing holes 316 and 317, and the shielding member 140 provided with the light receiving sensor 324 may be two. It may be coupled to the other one (317) of the four detection holes (316, 317).
- the sealing space S1 is formed between the pair of sealing members 114 formed of the lip seals, but the pair of sealing members ( 114) Additional mechanical seals, magnetic seals, or the like may be disposed between them, or other types of sealing members may replace the lip seals.
- the present invention relates to a sealing system for sealing a drive shaft in a rotary motion or a linear reciprocating motion, and more particularly, to a closed system having a leak detection function capable of quickly and accurately detecting the leakage through the sealing member of the sealing system. It is about.
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Abstract
Description
Claims (28)
- 구동축을 감싸도록 배치된 하우징, 및 상기 하우징과 상기 구동축 사이를 밀봉시키도록 상기 하우징과 상기 구동축의 사이에 복수개가 이격되게 배치된 씰링 부재, 및 상기 씰링 부재 사이에 배치되는 고정링 부재를 포함하는 밀폐 장치 본체; 및A housing disposed to surround the drive shaft, a sealing member disposed to be spaced apart from the housing and the drive shaft so as to seal between the housing and the drive shaft, and a fixing ring member disposed between the sealing member. Sealing device body; And상기 씰링 부재를 통한 누출 여부를 감지하도록 상기 씰링 부재들의 사이에 형성된 밀폐 공간에 배치되는 누출 감지 유닛;을 포함하며,And a leak detection unit disposed in a sealed space formed between the sealing members so as to detect the leak through the sealing member.상기 하우징과 상기 고정링 부재에는 상기 밀폐 공간과 연통되게 형성된 감지홀부가 구비되고, The housing and the fixing ring member is provided with a sensing hole formed in communication with the sealed space,상기 하우징의 내주면과 고정링 부재의 외주면 중 적어도 어느 하나에는, 감지홀부로부터 확장되어 감지홀부와 연통하는 확장공간부가 형성되는 누출 감지 기능을 구비한 밀폐 시스템.At least one of the inner circumferential surface of the housing and the outer circumferential surface of the fixing ring member, the sealing system having a leak detection function is formed in the expansion space portion extending from the detection hole to communicate with the detection hole.
- 제1항에 있어서,The method of claim 1,상기 씰링 부재는 메카니컬씰, 립씰, 반경축씰, 오링, 오일씰, 샤프트씰, 또는 고무링 중 적어도 어느 하나를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.The sealing member is a sealing system having a leak detection function including at least one of mechanical seal, lip seal, radial seal, O-ring, oil seal, shaft seal, or rubber ring.
- 제1항에 있어서, The method of claim 1,상기 확장공간부는 원주 방향을 따라 형성된 링형의 요홈을 포함하는 누출 감지 기능을 구비한 밀폐 시스템.The expansion space is a closed system having a leak detection function including a ring-shaped groove formed in the circumferential direction.
- 제1항에 있어서, The method of claim 1,상기 확장공간부의 적어도 일측에는 고정링 부재의 외주면과 하우징의 내주면에 밀착하는 링형의 밀폐 부재가 구비되는 누출 감지 기능을 구비한 밀폐 시스템.At least one side of the expansion space sealing system having a leak detection function provided with a ring-shaped sealing member in close contact with the outer peripheral surface of the fixed ring member and the inner peripheral surface of the housing.
- 제1항에 있어서,The method of claim 1,상기 확장공간부는 하우징의 내주면과 고정링 부재의 외주면 사이에서 감지홀부의 양측에 각각 배치되어 공간을 형성하는 밀폐 부재를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.And the expansion space part includes a sealing member disposed on both sides of the detection hole part between the inner circumference of the housing and the outer circumference of the fixing ring member to form a space.
- 제1항에 있어서,The method of claim 1,상기 밀폐 공간은 상기 구동축의 길이 방향으로 복수개가 형성되고, The plurality of sealed spaces are formed in the longitudinal direction of the drive shaft,상기 누출 감지 유닛은 상기 밀폐 공간들 중 적어도 하나에 배치되는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit has a leak detection function disposed in at least one of the sealed spaces.
- 제1항에 있어서,The method of claim 1,상기 누출 감지 유닛은 상기 감지홀부의 내부 또는 외부에 배치되는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit is a closed system having a leak detection function disposed inside or outside the detection hole.
- 제7항에 있어서,The method of claim 7, wherein상기 감지홀부는 상기 밀폐 공간 및 상기 하우징의 외부에 양단부가 연통되게 배치되도록 상기 하우징에 형성되고,The sensing hole is formed in the housing so that both ends are in communication with the outside of the sealed space and the housing,상기 누출 감지 유닛은 상기 밀폐 공간과의 사이에 허용 거리를 확보하도록 상기 밀폐 공간으로부터 이격된 위치에 배치되는 누출 감지 기능을 구비한 밀폐 시스템.And the leak detection unit has a leak detection function disposed at a position spaced apart from the sealed space to secure an allowable distance between the sealed space.
- 제8항에 있어서,The method of claim 8,상기 누출 감지 유닛은 상기 감지홀부의 양단부 중 상기 하우징의 외부와 연통되는 제1 단부를 통해서 상기 감지홀부에 설치되고,The leak detection unit is installed in the detection hole through the first end of the both ends of the detection hole to communicate with the outside of the housing,상기 하우징에는 상기 감지홀부를 외기로부터 차폐시키도록 상기 제1 단부에 장착되는 차폐 부재가 구비된 누출 감지 기능을 구비한 밀폐 시스템.And the housing has a leak detection function with a shielding member mounted to the first end to shield the sensing hole from outside air.
- 제9항에 있어서,The method of claim 9,상기 누출 감지 유닛은 상기 차폐 부재의 장착시 상기 감지홀부와 접촉되는 부위에 배치되도록 상기 차폐 부재와 일체로 형성된 누출 감지 기능을 구비한 밀폐 시스템.And the leak detection unit has a leak detection function integrally formed with the shielding member so that the leak detection unit is disposed at a portion in contact with the detection hole when the shielding member is mounted.
- 제7항에 있어서,The method of claim 7, wherein상기 감지홀부는 상기 밀폐 공간의 서로 다른 부위에 복수 형성되어, 양 단부가 밀폐 공간과 확장공간부에 각각 연결되며, The sensing hole is formed in a plurality of different parts of the sealed space, both ends are respectively connected to the sealed space and the expansion space,상기 누출 감지 유닛은 상기 밀폐 공간과의 사이에 허용 거리를 확보하도록 상기 복수의 감지홀부의 사이에 배치되는 누출 감지 기능을 구비한 밀폐 시스템.And the leak detection unit has a leak detection function disposed between the plurality of detection holes so as to secure an allowable distance between the sealed spaces.
- 제11항에 있어서,The method of claim 11,상기 하우징에는 상기 확장공간부 및 상기 하우징의 외부에 양단부가 연통되게 형성된 설치홀부가 구비되고, 상기 설치홀부에는 상기 감지홀부를 외기로부터 차폐시키도록 차폐 부재가 장착되며, The housing is provided with an installation hole formed in communication with both ends of the expansion space and the outside of the housing, the installation hole is equipped with a shielding member to shield the sensing hole from the outside air,상기 누출 감지 유닛은 상기 설치홀부를 통해 상기 확장공간부의 내부에 설치되는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit is a closed system having a leak detection function installed in the expansion space through the installation hole.
- 제1항에 있어서,The method of claim 1,상기 누출 감지 유닛은, 상기 밀폐 공간의 내부로 누출된 물질 또는 상기 밀폐 공간의 환경 변화 중 적어도 어느 하나를 감지하도록 상기 밀폐 공간에 배치된 센서를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.And the leak detection unit includes a sensor disposed in the sealed space to detect at least one of a substance leaked into the sealed space or an environmental change of the sealed space.
- 제13항에 있어서,The method of claim 13,상기 누출 감지 유닛은 가스 감지 센서, 액체 감지 센서, 이물질 감지 센서, 압력 감지 센서, 또는 온도 감지 센서 중 적어도 어느 하나를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit has a leak detection function including at least one of a gas detection sensor, a liquid detection sensor, a foreign matter detection sensor, a pressure detection sensor, or a temperature detection sensor.
- 구동축을 감싸도록 배치된 하우징, 및 상기 하우징과 상기 구동축 사이를 밀봉시키도록 상기 하우징과 상기 구동축의 사이에 복수개가 이격되게 배치된 씰링 부재를 포함하는 밀폐 장치 본체; 및A closure device body including a housing disposed to surround a drive shaft, and a sealing member spaced apart from each other between the housing and the drive shaft to seal between the housing and the drive shaft; And상기 씰링 부재를 통한 누출 여부를 감지하도록 상기 씰링 부재들의 사이에 형성된 밀폐 공간에 배치되는 누출 감지 유닛;을 포함하며, And a leak detection unit disposed in a sealed space formed between the sealing members so as to detect the leak through the sealing member.상기 밀폐 공간은 상기 구동축의 길이 방향으로 복수개가 형성되고, The plurality of sealed spaces are formed in the longitudinal direction of the drive shaft,상기 누출 감지 유닛은 압력 감지 센서와 온도 감지 센서를 포함하며, 상기 복수의 밀폐 공간 중 적어도 두 개 이상의 밀폐 공간에 각각 배치되는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit includes a pressure sensor and a temperature sensor, the system having a leak detection function disposed in at least two of the plurality of sealed spaces of the sealed space, respectively.
- 제15항에 있어서, The method of claim 15,상기 누출 감지 유닛은 하나의 밀폐 공간에 복수개가 배치되는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit has a leak detection function having a plurality of leak detection is arranged in one sealed space.
- 제15항에 있어서,The method of claim 15,상기 누출 감지 유닛은, 상기 씰링 부재의 파손 여부를 감지하도록 상기 씰링 부재를 중심으로 서로 이웃하는 밀폐 공간에 배치된 광 센서를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.The leak detection unit has a leak detection function including a light sensor disposed in a sealed space adjacent to each other around the sealing member to detect whether the sealing member is damaged.
- 제17항에 있어서,The method of claim 17,상기 누출 감지 유닛은,The leak detection unit,상기 씰링 부재를 향해 빛을 조사하도록 상기 밀폐 공간들 중 어느 하나에 배치된 발광 센서; 및A light emitting sensor disposed in one of the sealed spaces to irradiate light toward the sealing member; And상기 씰링 부재를 통과한 빛을 감지하도록 상기 밀폐 공간들 중 다른 하나에 배치된 수광 센서;A light receiving sensor disposed in the other one of the closed spaces so as to sense light passing through the sealing member;를 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function comprising a.
- 제1항 내지 제18항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 18,상기 밀폐 장치 본체에 구비되고, 상기 누출 감지 유닛의 감지값을 상기 밀폐 장치 본체의 외부로 전송하도록 상기 누출 감지 유닛에 연결된 통신 유닛;A communication unit provided in the closure device body and connected to the leak detection unit to transmit a detection value of the leak detection unit to the outside of the closure device body;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제19항에 있어서,The method of claim 19,상기 통신 유닛은 무선 방식 또는 유선 방식 중 적어도 어느 한 방식으로 통신이 가능하게 형성된 누출 감지 기능을 구비한 밀폐 시스템.And the communication unit has a leak detection function configured to communicate in at least one of a wireless method and a wired method.
- 제19항에 있어서,The method of claim 19,상기 밀폐 장치 본체를 관리하는 관리자에게 구비되고, 상기 누출 감지 유닛의 감지값을 실시간으로 표시하도록 상기 통신 유닛과 신호 전달 가능하게 연결된 단말기 유닛;A terminal unit provided to an administrator who manages the closure device main body, the terminal unit being connected to the communication unit so as to be able to transmit a signal to display a detection value of the leak detection unit in real time;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제19항에 있어서,The method of claim 19,상기 밀폐 장치 본체와 상기 구동축을 관리하는 관리소에 구비되고, 상기 누출 감지 유닛의 감지값을 실시간으로 표시하도록 상기 통신 유닛과 신호 전달 가능하게 연결된 디스플레이 유닛;A display unit provided in a management office for managing the closure device main body and the drive shaft, the display unit connected to the communication unit so as to transmit a signal in real time to display a detection value of the leak detection unit;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제19항에 있어서,The method of claim 19,상기 밀폐 장치 본체와 상기 구동축을 관리하는 관리소에 구비되고, 상기 누출 감지 유닛의 감지값이 설정 범위를 벗어나면 경보음을 발생하도록 상기 통신 유닛과 신호 전달 가능하게 연결된 경보 유닛;An alarm unit provided in a management station for managing the closure device main body and the drive shaft, the alarm unit being connected to the communication unit so as to transmit a signal to generate an alarm sound when the detection value of the leak detection unit is out of a set range;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제19항에 있어서,The method of claim 19,상기 누출 감지 유닛의 감지값에 따라 상기 구동축의 작동을 제어하도록 상기 통신 유닛 및 상기 구동축을 작동시키는 구동축 작동부에 연결된 제어 유닛;A control unit connected to a drive shaft operating portion for operating the communication unit and the drive shaft to control the operation of the drive shaft in accordance with a detected value of the leak detection unit;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제1항 내지 제18항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 18,상기 밀폐 장치 본체에 구비되고, 상기 누출 감지 유닛의 감지값을 상기 밀폐 장치 본체의 외부로 전송하도록 상기 누출 감지 유닛에 연결된 통신 유닛;A communication unit provided in the closure device body and connected to the leak detection unit to transmit a detection value of the leak detection unit to the outside of the closure device body;상기 누출 감지 유닛의 감지값을 전달 받도록 상기 통신 유닛과 연결된 제어유닛;A control unit connected to the communication unit to receive the detection value of the leak detection unit;상기 제어 유닛에서 처리된 감지값을 실시간으로 표시하도록 상기 제어 유닛과 연결된 단말기 유닛;A terminal unit connected to the control unit to display in real time the sensed value processed by the control unit;상기 제어 유닛에서 처리된 감지값을 실시간으로 표시하도록 상기 제어 유닛과 연결된 디스플레이 유닛; 및A display unit connected with the control unit to display in real time the sensed value processed by the control unit; And상기 누출 감지 유닛의 감지값이 설정 범위를 벗어나면 경보음을 발생하도록 상기 제어 유닛과 연결된 경보 유닛;An alarm unit connected to the control unit to generate an alarm sound when the detection value of the leak detection unit is out of a setting range;을 더 포함하는 누출 감지 기능을 구비한 밀폐 시스템.Closed system with a leak detection function further comprising.
- 제25항에 있어서,The method of claim 25,상기 제어 유닛은 상기 단말기 유닛을 통해 지시를 전달받아 상기 구동축의 구동을 제어하도록 상기 단말기 유닛과 양방향으로 통신 가능하게 연결된 누출 감지 기능을 구비한 밀폐 시스템.And the control unit has a leak detection function connected to the terminal unit in both directions so as to control the driving of the drive shaft by receiving an instruction through the terminal unit.
- 제26항에 있어서,The method of claim 26,상기 단말기 유닛은 컴퓨터, 휴대폰, 스마트 폰, 테블릿 PC, 전자책, PDA, 또는 휴대용 게임기 중 적어도 하나를 포함하고,The terminal unit includes at least one of a computer, a mobile phone, a smart phone, a tablet PC, an e-book, a PDA, or a portable game machine,상기 단말기 유닛에는 상기 제어 유닛과의 양방향 통신 및 상기 누출 감지 유닛의 감지값 표시를 위한 소프트웨어가 설치된 누출 감지 기능을 구비한 밀폐 시스템.And the terminal unit has a leak detection function equipped with software for bidirectional communication with the control unit and the display of the detection value of the leak detection unit.
- 제25항에 있어서,The method of claim 25,상기 디스플레이 유닛 및 상기 경보 유닛은 상기 밀봉 장치 본체와 상기 구동축의 작동을 관리하는 관리소에 구비되고,The display unit and the alarm unit are provided in the management office for managing the operation of the sealing device body and the drive shaft,상기 제어 유닛은 상기 관리소의 지시에 따라 상기 구동축의 구동을 제어하도록 형성된 누출 감지 기능을 구비한 밀폐 시스템.And the control unit has a leak detection function configured to control the drive of the drive shaft according to the instructions of the management office.
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CN201480077496.0A CN106133414B (en) | 2014-03-27 | 2014-12-26 | Sealing system with leakage inducing function |
JP2017502549A JP6340134B2 (en) | 2014-03-27 | 2014-12-26 | Sealed system with leak detection function |
US15/128,863 US10024753B2 (en) | 2014-03-27 | 2014-12-26 | Sealing system having leakage sensing function |
EP14886677.5A EP3133322B1 (en) | 2014-03-27 | 2014-12-26 | Sealing system having leakage sensing function |
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KR1020140179198A KR101648642B1 (en) | 2014-03-27 | 2014-12-12 | Sealing system having function for sensing leakage |
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