CN108443573B - Valve lock and valve management and control system - Google Patents
Valve lock and valve management and control system Download PDFInfo
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- CN108443573B CN108443573B CN201810241150.XA CN201810241150A CN108443573B CN 108443573 B CN108443573 B CN 108443573B CN 201810241150 A CN201810241150 A CN 201810241150A CN 108443573 B CN108443573 B CN 108443573B
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- valve
- lock body
- hand wheel
- lock
- rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a valve lock and a valve management and control system.A fixed lock body is fixedly arranged on a hand wheel pressing piece of a valve, and a locking mechanism is utilized to lock or release a movable lock body and the fixed lock body, so that a hand wheel interference mechanism arranged on the movable lock body can limit the rotation of a hand wheel. The invention also realizes the valve state detection by arranging the magnetic element on the valve rod, arranging the valve state detection piece on the movable lock body and arranging the state detection circuit in the lockset. In addition, the valve lock provided by the invention can be matched with a computer key, a parameter acquisition device and a management host to form a whole set of valve management and control system, so that the systematic management and monitoring of valve unlocking control and switch state detection are realized.
Description
All as the field of technology
The invention relates to a valve lock and a valve management and control system based on the same.
All the above-mentioned background techniques
The valve is used for flow control and has wide application fields. Taking the field of petrochemical industry as an example, a large number of valves are used in a transportation system, a measurement and control system and the like. There are various valves according to different application requirements or environments, and the valves have certain differences in their structures or sizes, but the basic principles are different.
The flat valve is a valve commonly used in the field of petrochemical industry and is mainly used in oil gas pipelines. The flat valve comprises a valve body, a valve rod, a hand wheel and a hand wheel pressing piece, when the hand wheel is rotated to open the valve, the valve rod can rise upwards, and when the valve rod rises to the highest point, the valve is completely opened; when the hand wheel is rotated to close the valve, the valve rod descends downwards, and when the valve rod descends to the lowest point, the valve is completely closed.
In order to prevent the valve from being mistakenly operated by people in the prior art, a locking device is arranged on the valve, however, the locking device in the prior art only covers and seals a hand wheel, and the locking device is easy to shake and is damaged. In addition, the existing locking device can only lock the valve but cannot control the unlocking valve, and the state of the valve cannot be detected, so that the system management and monitoring are not facilitated.
All the contents of the invention
The invention aims to provide a valve lock which is used for locking a valve and has the characteristics of stable structure, practicability and reliability. The above object of the present invention is achieved by the following technical solutions:
a kind of valve lock, the said valve includes valve block, valve stem, hand wheel and hand wheel casting die, the hand wheel casting die assembles the hand wheel in the valve stem extension of the valve block rotatably, the hand wheel controls the valve stem to rise or descend in the hand wheel and centre hole of the casting die of the hand wheel; the method is characterized in that: the lock comprises a movable lock body, a fixed lock body, a locking mechanism and a hand wheel interference mechanism; the fixed lock body is fixedly arranged on the hand wheel pressing piece, and the locking mechanism locks or unlocks the movable lock body and the fixed lock body; the hand wheel interference mechanism is fixedly arranged on the movable lock body, and when the movable lock body is locked with the fixed lock body, the hand wheel interference mechanism limits the rotation of the hand wheel.
As a specific technical scheme, the locking mechanism comprises a lock cylinder, a lock pin and a locking rod; the locking rod is fixedly arranged on the fixed lock body, the movable lock body is provided with a locking rod matching hole, the lock cylinder and the lock pin are arranged on the movable lock body, and the lock pin is controlled by the lock cylinder to be in the locking rod matching hole to lock or unlock the locking rod, so that the movable lock body and the fixed lock body are locked or unlocked mutually.
As a specific technical scheme, the hand wheel interference mechanism is a longitudinal interference rod fixedly arranged below the movable lock body, an interference rod insertion hole which is communicated up and down is formed in the fixed lock body, and the locking rod, the locking rod matching hole, the interference rod and the interference rod insertion hole are arranged in parallel; when the movable lock body is locked with the fixed lock body, the interference rod penetrates through the interference rod insertion hole and the wheel disc of the hand wheel.
According to the specific technical scheme, the movable lock body comprises a main lock body and a positioning sleeve, the lock cylinder and the lock pin are arranged on the main lock body, and the positioning sleeve is sleeved on the periphery of the hand wheel pressing piece when the movable lock body is locked with the fixed lock body.
As a further technical scheme, the lockset further comprises an auxiliary lock body fixedly arranged on the valve body below the hand wheel, an interference rod positioning hole is formed in the auxiliary lock body, and when the movable lock body is locked with the fixed lock body, the interference rod penetrates through the interference rod insertion hole and the wheel disc of the hand wheel and then is positioned in the interference rod positioning hole.
According to the specific technical scheme, the fixed lock body is fixed on the hand wheel pressing piece through a hoop, and the auxiliary lock body is fixed on the valve body below the hand wheel through the hoop.
As a further technical scheme, in the process that a central hole of a handwheel and a central hole of a handwheel pressing piece are lifted or lowered, the top end of the valve rod extends out of or retracts into the central hole of the handwheel pressing piece, and the lockset further comprises a valve state detection piece for detecting the position of the top end of the valve rod.
As a specific technical scheme, a magnet is arranged at the top end of the valve rod, the valve state detection piece comprises a support and a magnetic induction unit arranged on the support, and the support is fixedly connected with the movable lock body and enables the position of the magnetic induction unit to meet the following conditions: when the movable lock body is locked with the fixed lock body and the hand wheel controls the valve rod to ascend to the uppermost end, the magnet at the top end of the valve rod is located in the induction range of the magnetic induction unit.
As a further technical scheme, the lockset further comprises a circuit board which is arranged on the movable lock body, and the magnetic induction unit is connected with the circuit board through a signal line.
As a further technical scheme, the lockset further comprises a radio frequency chip which is fixedly arranged at the front end of the lock cylinder.
As a specific technical scheme, the support of the valve state detection piece comprises an inverted L-shaped rod, the lower end of a vertical rod of the inverted L-shaped rod is fixedly connected with the movable lock body, and the free end of a cross rod of the inverted L-shaped rod is provided with the magnetic induction unit.
As a specific technical scheme, the support of the valve state detection piece further comprises a top cover plate and an outer side cover plate, the top cover is assembled at the top end of the cross rod of the inverted L-shaped rod, the outer side cover plate is assembled at the outer side of the vertical rod of the inverted L-shaped rod, a wiring channel is formed between the top cover and the inverted L-shaped rod and between the outer side cover plate and the inverted L-shaped rod, and the signal line of the magnetic induction unit is connected with the circuit board through the wiring channel and the wiring hole formed in the main lock body.
As a specific technical scheme, a state detection circuit is arranged on the circuit board and comprises a radio frequency antenna, a logic switch module and a radio frequency chip, wherein one end of the radio frequency chip is connected with an optional wiring terminal of the logic switch module, and the other end of the radio frequency chip is grounded; the fixed wiring end of the logic switch module is connected with one end of a radio frequency antenna, the other end of the radio frequency antenna is grounded, and the radio frequency antenna is arranged in the radio frequency chip; the induction signal output end of the magnetic induction unit is connected with one control signal input end of the logic switch module.
As a specific technical scheme, a state detection circuit is arranged on the circuit board and comprises a radio frequency antenna and a radio frequency chip, the magnetic induction unit is a magnetic induction switch, one end of the radio frequency chip is connected with one end of the magnetic induction switch, and the other end of the radio frequency chip is grounded; the other end of the magnetic induction switch is connected with one end of the radio frequency antenna, the other end of the radio frequency antenna is grounded, and the radio frequency antenna is arranged in the radio frequency chip.
As a specific technical scheme, the magnetic induction unit is a reed switch.
The invention further aims to provide a valve management and control system, which is based on the valve lock, realizes the control of unlocking and locking of the valve, and simultaneously acquires the opening and closing states of the valve for systematic management and monitoring. The above-mentioned another object of the present invention is achieved by the following technical solutions:
a valve management and control system applying the valve lock comprises a valve body, a valve rod, a hand wheel and a hand wheel pressing piece, wherein the hand wheel pressing piece enables the hand wheel to be rotatably assembled on a valve rod extending part of the valve body, and the hand wheel controls the valve rod to ascend or descend in central holes of the hand wheel and the hand wheel pressing piece; the system is characterized in that the valve management and control system comprises a parameter acquisition device, a management host, a computer key and a lockset; the acquisition end of the parameter acquisition device is arranged at a parameter acquisition position related to the process flow where the valve is positioned, and the parameter output end is connected with the parameter input end of the management host; the management host is in communication connection with the computer key; the computer key supplies power to the lock, is in communication connection with the lock and is matched with the mechanical unlocking of the lock; the lock adopts the valve lock.
As a further technical scheme, the valve management and control system further comprises a mobile terminal, and the management host is in indirect communication connection with the computer key through the mobile terminal.
The invention has the beneficial effects that: the fixed lock body is fixedly arranged on the hand wheel pressing piece of the valve, and the movable lock body and the fixed lock body are locked or released by the locking mechanism, so that the hand wheel interference mechanism arranged on the movable lock body can limit the rotation of the hand wheel, and in this way, the lockset for locking and managing and controlling the valve is provided, and the multifunctional locking mechanism has the characteristics of stable structure, practicability and reliability. The invention also realizes the valve state detection by arranging the magnetic element on the valve rod, arranging the valve state detection piece on the movable lock body and arranging the state detection circuit in the lockset. In addition, the valve lock provided by the invention can be matched with a computer key, a parameter acquisition device and a management host to form a whole set of valve management and control system, so that the systematic management and monitoring of valve unlocking control and switch state detection are realized.
Description of the drawings
Fig. 1 is a schematic view of a valve lock in a locked state and a controlled valve in an unlocked state according to an embodiment of the present invention.
Fig. 2 is a schematic view of a valve lock in a locked state and a controlled valve in a closed state according to an embodiment of the present invention.
Fig. 3 is a schematic view of a valve lock according to an embodiment of the present invention in an unlocked state and a controlled valve in an open state.
Fig. 4 is an assembly view of a valve lock according to an embodiment of the present invention.
Fig. 5 is an exploded view of a valve lock according to an embodiment of the present invention.
Fig. 6 is a structural diagram of a lock body in a valve lock according to an embodiment of the present invention.
Fig. 7 is a longitudinal sectional view of a valve latch according to an embodiment of the present invention at a locking lever.
Fig. 8 is a cross-sectional view of a valve lock of the present invention at a lock cylinder installation site.
Fig. 9 is an exploded view of a lock cylinder, a lock pin positioning mechanism, and a fixed lock rod portion of a valve latch according to an embodiment of the present invention.
Fig. 10 is an assembly view of a valve status detector in a valve lock according to an embodiment of the present invention.
Fig. 11 is an exploded view of a valve status detector in a valve lock according to an embodiment of the present invention.
Fig. 12 is a structural diagram of an implementation manner of a state detection circuit in a valve lock according to an embodiment of the present invention.
Fig. 13 is a structural diagram of another implementation manner of a state detection circuit in a valve lock according to a first embodiment of the present invention.
Fig. 14 is a configuration diagram of a valve control system according to a second embodiment of the present invention.
(specific embodiments) in all cases
The following further describes embodiments of the present invention with reference to the accompanying drawings:
example one
This embodiment provides a valve lock for manage and control the valve, make the valve can not be controlled at will. Fig. 1, 2 and 3 are schematic diagrams showing the valve lock matched with relevant parts of a valve, wherein a controlled valve comprises a valve body 900 (parts of the valve body are shown in the figures), a hand wheel 901, a hand wheel pressing piece 902 and a valve rod 903, the valve body 900 is provided with two ports and a fluid passage connecting the two ports, the valve rod 903 is assembled on the valve body 900, the lower part of the valve rod is used for controlling the opening and closing of the fluid passage, and the upper part of the valve rod extends out of the valve body; the hand wheel pressing piece 902 is used for rotatably assembling a hand wheel 901 at the position of the extending part of the valve rod and limiting the axial movement of the hand wheel relative to the valve body; the handwheel 901 controls the valve rod 903 to ascend or descend in the handwheel and the center hole of the handwheel casting die, so as to achieve the purpose of opening and closing the valve.
Referring to fig. 4 and 5, the valve lock includes a fixed lock body 10, a movable lock body 20, an auxiliary lock body 30, a locking mechanism, a valve state detector 50, a handwheel interference mechanism 60, a radio frequency chip 70, and a circuit board 80. As shown in fig. 9, the locking mechanism further includes a lock cylinder 41, a lock pin 42, a lock pin positioning assembly 43, and a locking lever 44; the locking pin positioning assembly 43 further comprises a positioning pin 431, a spring 432 and a plug 433.
Referring to fig. 3, 4 and 5, the fixed lock 10 includes a body 11 and a collar 12, and the body 11 is fixed to a hand pressing member 902 of the valve through the collar 12. A locking rod fixing hole is longitudinally formed in the middle of the body 11, the locking rod 44 is fixedly assembled above the fixed lock body 10 through the locking rod fixing hole, at least one locking pin hole 441 is formed in the upper portion of the locking rod 44, and when the number of the locking pin holes is more than two, the locking pin holes 441 are longitudinally distributed at different heights; the plurality of locking pin holes are mainly arranged in such a way that when the movable lock body 20 is locked on the fixed lock body 10 for the valve rods 903 with different heights, the valve state detection piece 50 arranged on the movable lock body can effectively detect the positions of the top ends of the valve rods 903 (regarding the valve state detection piece 50, the following details are provided). The hand wheel interference mechanism 60 is two longitudinal interference rods fixedly arranged below the movable lock body 20, and through interference rod insertion holes 112 are longitudinally formed at two ends of the body 11.
Referring to fig. 5 and 6, the movable lock body 20 has a main lock body 21, a positioning sleeve 22, a cover plate 23 and a padlock plate 24. The front end of the main lock body 21 is backwards provided with a lock cylinder assembly hole 211, the inside of the main lock body is leftwards and rightwards provided with a lock pin assembly hole 212 (combined with fig. 7), the front end of the lock cylinder 41 is fixedly provided with a radio frequency code sheet 70, the radio frequency code sheet 70 is provided with a key through hole, the lock cylinder 41 and the radio frequency code sheet 70 are fixedly assembled in the lock cylinder assembly hole 211, the lock pin 42 is movably assembled in the lock pin assembly hole 212, and the lock cylinder 41 drives the lock pin 42 to reciprocate in the lock pin assembly. In this embodiment, the driving end of the lock core 41 is an eccentric column, one side of the lock pin 42 is provided with a shifting groove 421 matching with the eccentric column, and when the key rotates the rotating shaft of the lock core 41, the eccentric column 411 shifts the lock pin 42 to reciprocate, as shown in fig. 9. The lock pin positioning assembly 43 is used for increasing unlocking hand feeling, and the lock cylinder has pause feeling after rotating in place to remind an unlocking person of rotating in place; the lock pin positioning assembly 43 comprises a positioning pin 431, a spring 432 and a plug 433, the positioning pin 431, the spring 432 and the plug 433 are arranged in a lock pin positioning assembly hole formed in the main lock body 21 from inside to outside, the tail end of the other side of the lock pin 42 is provided with a positioning groove 422, the positioning groove 422 is provided with an unlocking position positioning shallow groove 4221 and a locking position positioning shallow groove 4222, and the positioning pin 431 is pressed into the unlocking position positioning shallow groove 4221 or the locking position positioning shallow groove 4222 under the action of the spring 432.
In the embodiment, the fitting hole 213 is used as both the locking rod insertion hole and the detection member installation hole, and in fact, after the valve state detection member 50 is installed in the fitting hole 213, the valve state detection member 50 provides the locking rod insertion hole for the locking rod 44 to be inserted therein, and then the locking rod is locked or unlocked by the locking pin 42; of course, the valve status detecting member 50 may be mounted by other methods, such as directly screwed to the top end of the main lock body 21; at this time, the fitting hole 213 mainly functions as a locking rod insertion hole. Interference rod assembly holes 214 are longitudinally formed in two ends of the main lock body 21, and two longitudinal interference rods of the hand wheel interference mechanism 60 are fixedly arranged below the movable lock body 20 through the interference rod assembly holes 214.
The locking rod 44, the matching hole 213, the two longitudinal interference rods of the hand wheel interference mechanism 60 and the interference rod insertion hole 112 are arranged in parallel, the locking pin assembly hole 212 formed in the left-right direction is communicated with the matching hole 213 formed in the longitudinal direction, when the upper end of the locking rod 44 is inserted into the locking rod insertion hole 213, the front end of the locking pin 42 is connected and locked to lock the movable lock body 20 and the fixed lock body 10, and the positioning sleeve 22 is sleeved on the periphery of the hand wheel pressing piece 902 when the movable lock body 20 and the fixed lock body 10 are locked. At this time, two longitudinal interference rods of the hand wheel interference mechanism 60 penetrate through the interference rod insertion holes 112 and the wheel discs of the hand wheel 901 to form interference, so that the hand wheel 901 cannot rotate, and the operation of the valve 900 is controlled. When the locking rod 44 is unlocked at the front end of the locking pin 42, the movable lock body 20 can be pulled out upward relative to the fixed lock body 10, and separated from each other, at this time, two longitudinal interference rods of the handwheel interference mechanism 60 are also pulled out from the interference rod insertion holes 112 and the wheel discs of the handwheel 901, and the handwheel 901 can rotate.
The front end face of the main lock body 21 of the movable lock body 20 is further provided with a circuit board assembly groove 215, and the circuit board 80 is assembled in the circuit board assembly groove 215. The circuit board assembly slot 214 and the key cylinder assembly hole 211 are opened with a wire through slot 216 for routing the connection between the rf chip 70 and the circuit board 80. The cover plate 23 is fixedly disposed on the front end surface of the main lock body 21 by means of screws or the like, blocks the circuit board assembly groove 214, and meanwhile, a key hole 231 is formed in the cover plate 23 at a mounting position corresponding to the lock cylinder. The upper end of the cover plate 23 is higher than a part of the main lock body 21, and the upper part of the padlock plate 24 is provided with a reverse folding part which is hung on the higher part of the cover plate 23, and the reverse folding part and the higher part are correspondingly provided with padlock holes 132 and 242.
As shown in fig. 3, 4 and 5, the auxiliary lock 30 includes a body 31 and a collar 32, and the body 31 is fixed to the valve body below the valve handwheel 901 through the collar 32. Interference rod positioning holes 312 are longitudinally formed in both ends of the body 31, and when the movable lock body 20 is locked with the fixed lock body 10, the two longitudinal interference rods of the hand wheel interference mechanism 60 pass through the interference rod insertion holes 112 and the wheel discs of the hand wheel 901 and then are positioned in the interference rod positioning holes 312.
As shown in fig. 1 and fig. 2, in order to obtain the valve opening and closing information, it is necessary to detect the position of the top end of the valve rod 903, so in this embodiment, the handwheel 901 controls the top end of the valve rod 903 to extend out of or retract into the central hole of the handwheel pressing member 902 during the process of ascending or descending the central hole of the handwheel and the handwheel pressing member. The valve state detection piece 50 mainly detects the position of the top end of the valve rod 903 by a magnetic induction principle, so that the top end of the valve rod 903 is provided with a magnet 904; of course, the use of other detection means such as photoelectric sensing is not excluded. As shown in fig. 8, the valve status detecting member 50 includes a bracket 51 and a magnetic induction unit 52 disposed on the bracket, the bracket 51 is fixedly connected to the movable lock body 20, and the magnetic induction unit 52 is located at a position satisfying the following condition: when the movable lock body 20 is locked with the fixed lock body 10 and the hand wheel 901 controls the valve rod 903 to ascend to the uppermost end, the magnet 904 at the top end of the valve rod is positioned in the sensing range of the magnetic sensing unit 52.
Specifically, referring to fig. 10 and 11, the bracket 51 includes an inverted L-shaped rod, the lower end of the upright of the inverted L-shaped rod is fixedly connected to the movable lock 20 through the above-mentioned mating hole 213, and a locking rod insertion hole is provided inside the lower end of the upright; a magnetic induction unit 52 is provided at the free end of the cross bar of the inverted L-shaped bar. The magnetic induction unit 52 is connected to the circuit board 80 through a signal line. The bracket 51 further includes a top cover plate 511 and an outer cover plate 512, the top cover 511 is assembled on the top of the cross bar of the inverted L-shaped bar, the outer cover plate 512 is assembled on the outer side of the vertical bar of the inverted L-shaped bar, a wiring channel 513 is formed between the top cover and the inverted L-shaped bar and between the outer cover plate and the inverted L-shaped bar, the signal line of the magnetic induction unit 52 is connected to the circuit board 80 through the wiring channel 513 and a wiring hole 217 formed in the main lock body 21 of the movable lock body 20, and fig. 6 is combined.
When the hand wheel 901 is rotated to enable the valve rod 903 to rise to a fully open state of the valve, the magnet 904 at the top end of the valve rod 903 is located just below the magnetic induction unit 52, the magnetic induction unit 52 senses a signal and provides the signal to the circuit board 80, namely when the magnet 904 is close to the magnetic induction unit 52, the magnetic induction unit 52 is switched on and outputs a signal of 1, and when the magnet 904 is far away from the magnetic induction unit 52, the magnetic induction unit 52 is switched off and outputs a signal of.
The circuit board 80 provided in this embodiment is provided with a state detection circuit, as shown in fig. 12, the circuit includes a radio frequency antenna, a logic switch module, and a radio frequency chip, one end of the radio frequency chip is connected to one selectable terminal of the logic switch module, and the other end is grounded; the fixed wiring terminal of the logic switch module is connected with one end of the radio frequency antenna, the other end of the radio frequency antenna is grounded, and the radio frequency antenna is arranged in the radio frequency code sheet 70; the sensing signal output terminal of the magnetic sensing unit 52 is connected to a control signal input terminal of the logic switch module. In fact, a plurality of detection points can be further arranged according to the detection requirement, and a plurality of groups of radio frequency chips can be correspondingly arranged, for example, a magnetic induction unit is arranged at the top end of the hand wheel pressing part 902 to detect the state of the valve rod when the valve rod returns.
In this embodiment, the magnetic induction unit 52 is a reed switch, the logic switch module switches on the corresponding radio frequency IC according to a switch signal input by the reed switch, and may also use a magnetic switch similar to the reed switch as a signal input, or may also use a hall device, or a piezoelectric sensor or other devices that react to current change and voltage change as an input signal, so as to switch on the corresponding radio frequency IC and output a corresponding code value, thereby reflecting the state of the valve.
In addition to the above solutions, the state detection circuit may also use the circuit shown in fig. 13, which is simple in connection, but only uses a magnetic switch similar to a reed switch, and switches on the corresponding rf IC through a change of the switching value to output the corresponding code value, thereby reflecting the state of the valve. Of course, the number of the reed switches and the number of the radio frequency chips can be correspondingly increased according to the valve state to be acquired (for example, the states of the valves which are required to be acquired are opened, closed and between the opening and the closing).
Example two
The second embodiment provides a valve management and control system based on the valve lock provided in the first embodiment, and as shown in fig. 14, the valve management and control system includes a parameter acquisition device, a management host, a mobile terminal, a computer key and a lock; the acquisition end of the parameter acquisition device is arranged at a parameter acquisition position related to the process flow where the valve is located, and the parameter output end is connected with the parameter input end of the management host; the management host is in communication connection with the mobile terminal, and the mobile terminal is in communication connection with the computer key; the computer key supplies power to the lock, is in communication connection with the lock and is matched with the mechanical unlocking of the lock; the lockset adopts the valve lockset of the first embodiment.
The working principle of the valve management and control system is described as follows:
various parameters in the process flow of the valve are collected through a parameter collecting device and sent to a management host;
analyzing the various parameters through the management host, and determining the time for operating the valve and whether the parameter change in the process flow after the valve is operated meets the preset requirement; for the confirmed operation opportunity, an unlocking instruction is generated and sent to the mobile terminal;
the unlocking instruction is transmitted to the computer key through the mobile terminal, when the computer key is unlocked, the computer key is inserted into a lock hole of a lock cylinder 41 of the valve lock, induction electric energy is provided for the radio frequency chip 70 (principle of wireless power supply), power is supplied to the state detection circuit, the circuit collects signals according to the state of the corresponding magnetic induction unit, the corresponding radio frequency chip is switched on, a code value is returned to the computer key through the antenna after the radio frequency chip is switched on, the computer key confirms the identity of the valve and the current state of the valve by reading the code value, and the valve lock is unlocked under the condition that the control host machine allows unlocking (under the condition that the control system does not allow unlocking, the state of the valve and the lock can be collected only). For safety reasons, locking the lock with a computer key does not require the permission of a control system.
The above embodiments are merely provided for full disclosure and not for limitation, and any replacement of equivalent technical features based on the gist of the present invention without creative efforts should be considered as the scope of the present disclosure.
Claims (16)
1. A kind of valve lock, the said valve includes valve block, valve stem, hand wheel and hand wheel casting die, the hand wheel casting die assembles the hand wheel in the valve stem extension of the valve block rotatably, the hand wheel controls the valve stem to rise or descend in the hand wheel and centre hole of the casting die of the hand wheel; the method is characterized in that: the lock comprises a movable lock body, a fixed lock body, a locking mechanism and a hand wheel interference mechanism; the fixed lock body is fixedly arranged on the hand wheel pressing piece, and the locking mechanism locks or unlocks the movable lock body and the fixed lock body; the hand wheel interference mechanism is fixedly arranged on the movable lock body, and when the movable lock body is locked with the fixed lock body, the hand wheel interference mechanism limits the rotation of the hand wheel.
2. The valve latch according to claim 1, wherein said locking mechanism comprises a lock cylinder, a lock pin and a locking rod; the locking rod is fixedly arranged on the fixed lock body, the movable lock body is provided with a locking rod matching hole, the lock cylinder and the lock pin are arranged on the movable lock body, and the lock pin is controlled by the lock cylinder to be in the locking rod matching hole to lock or unlock the locking rod, so that the movable lock body and the fixed lock body are locked or unlocked mutually.
3. The valve lock according to claim 2, wherein the handwheel interference mechanism is a longitudinal interference rod fixedly arranged below the movable lock body, the fixed lock body is provided with an interference rod insertion hole which is penetrated up and down, and the locking rod, the locking rod matching hole, the interference rod and the interference rod insertion hole are arranged in parallel; when the movable lock body is locked with the fixed lock body, the interference rod penetrates through the interference rod insertion hole and the wheel disc of the hand wheel.
4. The valve lock of claim 3, wherein the movable lock comprises a main lock body and a positioning sleeve, the lock cylinder and the lock pin are disposed on the main lock body, and the positioning sleeve is disposed on the periphery of the hand pressing member when the movable lock body is locked with the fixed lock body.
5. The valve lock of claim 4, further comprising an auxiliary lock body fixedly disposed on the valve body below the hand wheel, wherein the auxiliary lock body is provided with an interference rod positioning hole, and when the movable lock body is locked to the fixed lock body, the interference rod passes through the interference rod insertion hole and the wheel disc of the hand wheel and is then positioned in the interference rod positioning hole.
6. The valve latch of claim 5, wherein the fixed lock body is secured to the hand wheel pressing member by a ferrule, and the auxiliary lock body is secured to the valve body below the hand wheel by a ferrule.
7. The valve latch of claim 5, wherein the hand wheel control valve stem extends or retracts from the central bore of the hand wheel pressing member during the raising or lowering of the hand wheel and the central bore of the hand wheel pressing member, and further comprising a valve state detector for detecting the position of the stem tip.
8. The valve lock according to claim 7, wherein a magnet is disposed at the top end of the valve rod, the valve state detecting member comprises a bracket and a magnetic induction unit disposed on the bracket, and the bracket is fixedly connected to the movable lock body and enables the magnetic induction unit to be located at a position satisfying the following condition: when the movable lock body is locked with the fixed lock body and the hand wheel controls the valve rod to ascend to the uppermost end, the magnet at the top end of the valve rod is located in the induction range of the magnetic induction unit.
9. The valve lock of claim 8, further comprising a circuit board disposed on the movable lock body, wherein the magnetic induction unit is connected to the circuit board via a signal line.
10. The valve latch of claim 9, further comprising a radio frequency chip fixedly disposed at a front end of the lock cylinder.
11. The valve lock according to claim 10, wherein the support of the valve status detecting member comprises an inverted L-shaped rod, the lower end of the vertical rod of the inverted L-shaped rod is fixedly connected with the movable lock body, and the magnetic induction unit is disposed at the free end of the cross rod of the inverted L-shaped rod.
12. The valve lock according to claim 11, wherein the bracket of the valve status detecting element further comprises a top cover plate and an outer cover plate, the top cover plate is mounted on the top of the cross rod of the inverted L-shaped lever, the outer cover plate is mounted on the outer side of the vertical rod of the inverted L-shaped lever, a routing channel is formed between the top cover plate and the inverted L-shaped lever and between the outer cover plate and the inverted L-shaped lever, and the signal line of the magnetic sensing unit is connected to the circuit board through the routing channel and the routing hole formed in the main lock body.
13. The valve lock according to claim 12, wherein the circuit board is provided with a status detection circuit, the status detection circuit comprises a radio frequency antenna, a logic switch module and a radio frequency chip, one end of the radio frequency chip is connected to one selectable terminal of the logic switch module, and the other end of the radio frequency chip is grounded; the fixed wiring end of the logic switch module is connected with one end of a radio frequency antenna, the other end of the radio frequency antenna is grounded, and the radio frequency antenna is arranged in the radio frequency chip; the induction signal output end of the magnetic induction unit is connected with one control signal input end of the logic switch module.
14. The valve lock according to claim 12, wherein the circuit board is provided with a state detection circuit, the state detection circuit comprises a radio frequency antenna and a radio frequency chip, the magnetic induction unit is a magnetic induction switch, one end of the radio frequency chip is connected to one end of the magnetic induction switch, and the other end of the radio frequency chip is grounded; the other end of the magnetic induction switch is connected with one end of the radio frequency antenna, the other end of the radio frequency antenna is grounded, and the radio frequency antenna is arranged in the radio frequency chip.
15. A valve management and control system is disclosed, wherein the valve comprises a valve body, a valve rod, a hand wheel and a hand wheel pressing piece, the hand wheel pressing piece rotatably assembles the hand wheel on a valve rod extending part of the valve body, and the hand wheel controls the valve rod to ascend or descend in a central hole of the hand wheel and the hand wheel pressing piece; the system is characterized in that the valve management and control system comprises a parameter acquisition device, a management host, a computer key and a lockset; the acquisition end of the parameter acquisition device is arranged at a parameter acquisition position related to the process flow where the valve is positioned, and the parameter output end is connected with the parameter input end of the management host; the management host is in communication connection with the computer key; the computer key supplies power to the lock, is in communication connection with the lock and is matched with the mechanical unlocking of the lock; the lock adopts the valve lock of any one of claims 9 to 14.
16. The valve management and control system of claim 15, further comprising a mobile terminal, wherein the management host is in indirect communication with the computer key via the mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241150.XA CN108443573B (en) | 2018-03-22 | 2018-03-22 | Valve lock and valve management and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241150.XA CN108443573B (en) | 2018-03-22 | 2018-03-22 | Valve lock and valve management and control system |
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| Publication Number | Publication Date |
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| CN108443573A CN108443573A (en) | 2018-08-24 |
| CN108443573B true CN108443573B (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810241150.XA Active CN108443573B (en) | 2018-03-22 | 2018-03-22 | Valve lock and valve management and control system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109737233B (en) * | 2019-01-31 | 2020-11-13 | 长园共创电力安全技术股份有限公司 | Valve lock with state detection function |
| CN110397786A (en) * | 2019-07-24 | 2019-11-01 | 国网浙江省电力有限公司检修分公司 | A kind of GIS gas chamber ono-rising-stem valve limiting device and its installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10317808A1 (en) * | 2003-04-16 | 2004-11-04 | Georg Fischer Rohrleitungssysteme Ag | Handle for valves |
| CN203784442U (en) * | 2014-03-19 | 2014-08-20 | 神华集团有限责任公司 | Anti-theft device with valve |
| CN204664593U (en) * | 2015-02-09 | 2015-09-23 | 中国石油化工股份有限公司 | A kind of anti-theft device for production tree valve |
| CN204785009U (en) * | 2015-07-02 | 2015-11-18 | 中国神华能源股份有限公司 | Latching valve door subassembly |
| US9810344B2 (en) * | 2016-02-18 | 2017-11-07 | Nibco Inc. | Valve with locking slide |
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| CN108443573A (en) | 2018-08-24 |
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