CN208330277U - Valve well guard system - Google Patents
Valve well guard system Download PDFInfo
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- CN208330277U CN208330277U CN201820819783.XU CN201820819783U CN208330277U CN 208330277 U CN208330277 U CN 208330277U CN 201820819783 U CN201820819783 U CN 201820819783U CN 208330277 U CN208330277 U CN 208330277U
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Abstract
The utility model provides a kind of valve well guard system, belongs to oilfield safety technical field, including well lid, control device, acousto-optic prior-warning device and the gas-detecting device being arranged in valve well, well cover opening device and exhaust fan；Acousto-optic prior-warning device is arranged on the outside of well lid, and well cover opening device is connect with well lid；Control device is connect with gas-detecting device, well cover opening device, exhaust fan and acousto-optic prior-warning device signal respectively；When the harmful gas concentration value in the valve well that gas-detecting device detects is greater than the harmful gas concentration early warning value of control device setting, control device controls well cover opening device and opens well lid, and control exhaust fan and acousto-optic prior-warning device are started to work.Valve well guard system provided by the utility model can detect the pernicious gas in valve well, be aerated when detecting harmful gas concentration value beyond preload value and to valve well and early warning.
Description
Technical field
The utility model relates to oilfield safety technical field more particularly to a kind of valve well guard systems.
Background technique
Valve well is the well shape structures that underground is arranged in, and the valve of underground utilities is equipped in valve well, facilitates operation
Personnel open, close or overhaul to the part pipe network of underground utilities.
Since valve well is arranged in underground, so valve well will receive the erosion of soil moisture and chemical substance, thus
Valve well is often designed to sealing structure, makes the valve in valve well not and will receive the erosion of soil moisture and chemical substance.
However, the valve well of leakproofness causes well inner air flow unsmooth, lead to existing methane and an oxygen in valve well
Changing the gases that are harmful to the human body such as carbon cannot exclude in time, be easy methane concentration and carbonomonoxide concentration in valve well beyond people
The tolerable value range of body occurs after sucking a large amount of carbon monoxide and methane if operator enters in valve well at this time
Intoxicating phenomenon causes operator to suffocate.
Utility model content
The utility model provides a kind of valve well guard system, can be to the carbon monoxide and methane etc. pair in valve well
Human harmful gas detect, once carbon monoxide and methane etc. are harmful to the human body, gas concentration value is tolerable beyond human body
Value range, this system can carry out early warning and ventilation in time.
To achieve the goals above, the utility model adopts the following technical solution:
On the one hand the utility model provides a kind of valve well guard system, including well lid, gas-detecting device, well lid are opened
Opening device, acousto-optic prior-warning device, control device and exhaust fan；The gas-detecting device, well cover opening device and exhaust fan are set
It sets in the valve well, wherein the well cover opening device and the well lid are sequentially connected；The acousto-optic prior-warning device setting
On the outside of the well lid；The control device respectively with the gas-detecting device, the well cover opening device, exhaust fan and sound
The connection of light prior-warning device signal；When the harmful gas concentration value in the valve well that the gas-detecting device detects is greater than control
When the harmful gas concentration early warning value of device setting, the control device control well cover opening device opens well lid, and control
The exhaust fan and acousto-optic prior-warning device are started to work.
Compared with prior art, valve well guard system provided by the utility model has the following advantages that；
Valve well guard system provided by the utility model, including gas-detecting device, well cover opening device, acousto-optic early warning
Device, exhaust fan and control device, when the harmful gas concentration value in the valve well that gas-detecting device detects is greater than control
When the harmful gas concentration early warning value of device setting, control device controls well cover opening device for well lid opening and the row of control
Fan work and be aerated to valve well；Control device also starts acousto-optic prior-warning device, and valve well is reminded nearby to operate
Personnel are far from valve well.The utility model valve well guard system detects the harmful gas concentration in valve well, works as valve
Harmful gas concentration value in door well beyond control device setting harmful gas concentration early warning value when, being capable of early warning in time and logical
Wind.
Further, the well lid one side edge is provided with pin shaft, and the well lid is hinged on the valve well by pin shaft
Well head edge.Valve well guard system with above structure, the well lid are hinged on the well head edge of valve well, can
It opens well lid towards side, compared with vertical unlocking well lid, saves the thrust for open manhole cover.
Further, the well cover opening device includes: motor and crank throw；One end of the crank throw is defeated with the motor
Shaft is fixedly connected, and the other end of the crank throw and the well lid are hinged.Well cover opening device with above structure, crank throw knot
Structure intensity is big, is unlikely to deform, and power transmission effect is good.
Further, the well cover opening device includes: hydraulic actuator, the output rod of the hydraulic actuator with it is described
Well lid is hinged.Well lid can be fixed on a certain open position by the well cover opening device with above structure, hydraulic actuator, be met
Well lid difference opening angle needs.
Further, the gas-detecting device includes carbonomonoxide concentration detector and methane concentration detector, is used for
Detect the concentration of CO gas and the concentration of methane gas in valve well, poppet well harmful gas concentration detection effect
Rate.
Further, the valve well guard system further includes the display device being arranged in outside the valve well, described aobvious
Showing device is arranged outside the valve well and connect with the control device signal, for showing the pernicious gas in valve well
The working condition of concentration value and the exhaust fan, opening device.Valve well guard system with above structure, is conducive to valve
Nearby whether operator's timely learning valve well inside harmful gas concentration value and well lid are in ventilation state to door well.
Further, the valve well guard system further includes storage device, the storage device and the control device
Connection, for recording the opening time of harmful gas concentration value and exhaust fan in valve well.Valve well with above structure
Guard system, the storage device record the work of the harmful gas concentration value and exhaust fan inside valve well using time shaft as sequence
Time, the design for later valve well provide reference.
Further, self-luminous fluorophor is provided on the outside of the well lid.Valve well guard system with above structure,
The self-luminous fluorophor being arranged on the outside of well lid can shine in the insufficient environment of light, effectively remind valve well personnel nearby
Evacuation in time.
Further, the exhaust fan is explosion-proof exhaust fan, and the bottom of valve well is arranged in.Valve with above structure
Door well guard system, the circuit sealing of explosion-proof exhaust fan are generated without electric spark during the work time, inflammable full of methane etc.
It uses explosion-proof exhaust fan as ventilation equipment in the valve well of explosion hazard gases, improves the safety of valve well guard system.
Further, the acousto-optic prior-warning device includes that normal green flashing lamp, warning blinking yellow illumination lamp and danger are orange
Flashing lamp, and from the loudspeaker of capable of emitting different early warning sounds.Valve well guard system with above structure, in valve well
When the harmful gas concentration early warning value that harmful gas concentration value is arranged beyond control device, flashing lamp and loudspeaker are worked at the same time,
Double-reminding operator should avoid valve well, improve the reliability of valve well guard system.
In addition to the utility model described above solve the technical issues of, constitute technical solution technical characteristic and by
Outside beneficial effect brought by the technical characteristic of these technical solutions, valve well guard system provided by the utility model can be solved
The other technical characteristics and these technical characteristic bring beneficial effects for including in other technologies problem certainly, technical solution,
Further details of explanation will be made in a specific embodiment.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be practical to this
New embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing be only that a part of the embodiment of the utility model is not paying creation for those of ordinary skill in the art
Property labour under the premise of, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is valve well guard system structural schematic diagram provided by the embodiment of the utility model；
Fig. 2 is the operation principle schematic diagram of valve well guard system provided by the embodiment of the utility model；
Fig. 3 is a dozen lid schematic diagrames that drive a well of the structure composition of well cover opening device provided by the embodiment of the utility model；
Fig. 4 is that the structure composition one of well cover opening device provided by the embodiment of the utility model closes well lid schematic diagram；
Fig. 5 is that the structure composition two of well cover opening device provided by the embodiment of the utility model opens well lid schematic diagram；
Fig. 6 is that the structure composition two of well cover opening device provided by the embodiment of the utility model closes well lid schematic diagram.
10- well lid, 20- well cover opening device,
21- motor, 22- crank throw,
23- hydraulic actuator, 30- acousto-optic prior-warning device,
40- valve well, 50- gas-detecting device,
60- control device, 70- exhaust fan,
80- display device, 90- storage device.
Specific embodiment
In order to keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously,
Described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is practical new based on this
Embodiment in type, those of ordinary skill in the art's all other reality obtained without creative labor
Example is applied, the range of the utility model protection is belonged to.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection is also possible to be electrically connected or can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
As shown in Figure 1 to Figure 2, valve well guard system provided by the embodiment of the utility model, including well lid 10, well lid are opened
Opening device 20, acousto-optic prior-warning device 30, gas-detecting device 50, control device 60 and exhaust fan 70；Gas-detecting device 50, well
Lid opening device 20 and exhaust fan 70 are arranged in valve well 40, and wherein well cover opening device 20 and well lid 10 are sequentially connected；Sound
The outside of well lid 10 is arranged in light prior-warning device 30；Control device 60 respectively with gas-detecting device 50, well cover opening device 20,
Exhaust fan 70 and the connection of 30 signal of acousto-optic prior-warning device；Pernicious gas in the valve well 40 that gas-detecting device 50 detects
When concentration value is greater than the harmful gas concentration early warning value that control device 60 is arranged, control device 60 will control well cover opening device 20
Open well lid 10, while and control exhaust fan 70 and acousto-optic prior-warning device 30 start to work.
When it is implemented, well lid 10 is typically provided to circle or rectangular, certain well lid 10 may be designed as other shapes；
Well lid 10 can be used steel plate production or using plastic production.Well lid 10 is preferably the circular lid using steel plate production in this implementation
Plate is provided with protrusion in the edge of well lid 10 towards 40 side of valve well, and protrusion forms a ring structure in well lid 10, should
The outer diameter of ring structure is consistent with the well head internal diameter of valve well 40, can play when well lid 10 is embedded in the well head of valve well 40 close
The effect of envelope.It is understood that well lid 10 is generally embedded at the well head of valve well 40, well lid 10 needs when opening by well lid
10 remove from the well head of valve well 40；It, in a preferred embodiment, can be in well lid 10 1 meanwhile to keep well lid 10 easy to open
Side is provided with linkage, and well lid 10 can be connect by linkage with the edge of the well head of valve well 40, when well lid 10 needs
When opening, well lid 10 is started towards side.
Well cover opening device 20 is mounted on side of the well lid 10 towards valve well 40 comprising driving device and transmission dress
It sets, driving device is connect with 60 signal of control device, and the output end of driving device and one end of transmission device connect, transmission device
The other end and well lid 10 it is hinged.When harmful gas concentration exceeds harmful gas concentration early warning value in valve well 40, control dress
Set the start-up operation of 60 control well cover opening devices 20, it may be assumed that driving device driving transmission device opens well lid 10.It is understood that
It is that in the present embodiment, screw-threaded shaft elevator is can be selected in well cover opening device.
Well lid 10 is arranged in towards the side outside valve well 40 in acousto-optic prior-warning device 30, and acousto-optic prior-warning device 30 generally comprises
Flashing lamp and loudspeaker, and flashing lamp and loudspeaker can work at the same time.When harmful gas concentration exceeds control in valve well 40
When 60 preset harmful gas concentration early warning value of device, acousto-optic prior-warning device 30 starts under the control of control device 60, flashing
Lamp lights and along with the early warning sound that loudspeaker issues, and the light and early warning sound of flashing remind the operation near valve well 40 jointly
Personnel are far from valve well 40.
Gas-detecting device 50 is mounted in valve well 40, and gas-detecting device 50 is connect with 60 signal of control device；Gas
Body detection device 50 is to detect various gas concentration values in valve well 40, and the concentration value for the various gases that will test is sent
To control device 60.
Control device 60 can be set in valve well 40 or outside valve well 40, when control device 60 is arranged in valve well
When in 40, remote control device need to be used to start control device 60, when the control device when valve well 40 is outer is arranged in control device 60
60 are connect by route with the gas-detecting device 50 in valve well 40.
Control device 60 is connect with 50 signal of gas-detecting device, to receive gas-detecting device 50 detect it is various
Gas concentration value, and be compared with harmful gas concentration early warning value preset in control device 60, judge valve well 40 at this time
Whether interior harmful gas concentration value is greater than the early warning value of harmful gas concentration.
Control device 60 is connect with well cover opening device 20, exhaust fan 70 and 30 signal of acousto-optic prior-warning device respectively, works as valve
When harmful gas concentration value in door well 40 is greater than harmful gas concentration early warning value, control device 60 controls well cover opening device 20
Well lid 10 is opened, control exhaust fan 70 is started to work and is aerated to valve well 40, and control acousto-optic prior-warning device 30
It starts to work, reminds operator valve well 40 beyond this point at this time.
When operator needs to enter valve well 40, and valve is operated or overhauled, to prevent operator from gas occur
Body intoxicating phenomenon occurs, and need to detect to the gas in valve well 40.Control device 60 is opened first, control device 60 is controlled
Gas-detecting device 50 processed enters working condition, and gas-detecting device 50 will test harmful gas concentration value in valve well 40 and return
It is transmitted to control device 60.Then control device 60 is carried out according to harmful gas concentration value in valve well 40 and pre-warning harmful gases value
Compare, if harmful gas concentration value is greater than pre-warning harmful gases value in valve well, control device 60 makes command adapted thereto control
Well cover opening device 20 opens well lid 10, and controls exhaust fan 70 and the start-up operation of acousto-optic prior-warning device 30, by pernicious gas
Discharge valve well 40 simultaneously reminds operator at this time away from valve well 40.Compared with prior art, provided in this embodiment
Valve well guard system can detect the harmful gas concentration in valve well, and ventilation and early warning in time, promote operation
Personnel enter the safety guarantee of valve well.
On the basis of the above embodiments, 10 one side edge of well lid is provided with pin shaft, and well lid 10 is hinged on valve by pin shaft
The well head edge of door well 40.When it is implemented, the well head edge of valve well 40 is provided with the mounting hole for pin shaft insertion, well lid 10
In mounting hole by pin shaft insertion valve well 40, and well lid 10 can be rotated around valve well 40, in well lid 10 by from well lid
When the driving force of opening device 20, well lid 10 is opened towards side；Compared with 10 vertical unlocking of well lid, this programme opens well lid
Opening device 20 exports lesser driving force and can open well lid 10.
As shown in Figures 3 and 4, on the basis of the above embodiments, the driving in the present embodiment in well cover opening device 20
Device selects motor 21, and transmission device selects crank throw 22；Wherein, one end of crank throw 22 is fixedly connected with the output shaft of motor 21,
The other end and well lid 10 of crank throw 22 are hinged.When it is implemented, well lid 10 is provided with the shaft hinged for crank throw one end；Crank throw 22
It is whole L-shaped, including short side and long side, and short side and long side rigid connection.One end of short side and the output shaft of motor 21 are fixed
(keyway connection can be used) in connection, and one end of long side is socketed in the shaft of the setting of well lid 10；It is understood that long side and well
The hinge joint of lid 10 is oppositely arranged with valve well 40 and the hinged place of well lid 10, can increase the torque of power output, reduces motor 21
Output power.
When control device control well cover opening device 20 opens well lid 10, according to shown in Fig. 3, motor 21 drives crank throw
22 short side operates clockwise, and the long side of crank throw 22 drives well lid 10 to rotate relative to valve well 40, gradually opens well lid 10, to
Well lid 10 fully opens rear motor 21 and shuts down, the order for waiting control device to close well lid.When control device controls well
When lid opening device closes well lid 10, according to shown in Fig. 4, during well lid 10 is closed, motor 21 starts to revolve counterclockwise
Turn, crank throw 22 is driven to rotate counterclockwise, the long side of crank throw 22 drives well lid 10 to rotate relative to valve well 40, gradually closes well lid 10
It closes.In the present embodiment, for well lid 10 during opening and closing, crank throw 22 has good support strength, is unlikely to deform, power transmission
Effect is obvious.
As shown in Figures 5 and 6, on the basis of the above embodiments, the present embodiment selects hydraulic actuator 23 to be used as well lid
Opening device.Wherein, the output rod of hydraulic actuator 23 and well lid 10 are hinged.When it is implemented, well lid is provided with ball cup, liquid
One end for connect with well lid 10 of output rod of pressure pressurized strut 23 is provided with bulb, and bulb is inserted into ball cup, realization well lid 10 and
It is hinged between 23 output rod of hydraulic actuator, it is to be understood that the scheme that bulb and ball cup are equipped in this implementation
Excellent scheme is selected for one, other connection structures can also be realized hinged between well lid 10 and the output rod of hydraulic actuator 23.Such as:
Universal spherical joint etc..
Hydraulic actuator 23 is fixed on the borehole wall of valve well 40, it is to be understood that use can be arranged in valve well 40
In the mounting base of installation hydraulic actuator 23, guarantee that the output rod of hydraulic actuator 23 and well lid 10 are articulated and connected.Hydraulic actuation
The output rod of cylinder 23 is fixed on the side of well lid 10, and the hinged place far from well lid 10 with valve well 40.It is understood that this
In embodiment, the output rod of hydraulic actuator 23 is vertical with well lid 10 to be connect.
According to direction shown in Fig. 5, when control device 60, which controls well cover opening device 20, opens well lid 10, hydraulic actuator
23 output rod moves upwards to open well lid 10, and after well lid 10 fully opens, hydraulic actuator 23 stops working.It presses
According to direction shown in Fig. 6, when control device 60, which controls well cover opening device 20, closes well lid 10, the output rod of hydraulic actuator 23
It moves downward, and then well lid 10 is progressively closed off.In 10 opening process of well lid or in closing process, if you need to which well lid 10 is fixed
In a certain position, using the self-locking property of hydraulic actuator, well lid 10 is fixed on a certain position；Meanwhile in well lid 10
Well lid will not be caused to close because of accident after fully opening.
On the basis of the above embodiments, gas-detecting device 50 includes that carbonomonoxide concentration detector and methane concentration are examined
Device is surveyed, carbonomonoxide concentration detector is used to carbon monoxide gas concentration in special detection valve well, methane concentration detector
With the concentration of methane gas in special detection valve well.CO gas and methane gas are common gas in gas in valve well
Body is done great harm to human body when carbon monoxide gas concentration and concentration of methane gas exceed pre-warning harmful gases value.Wherein, valve
When concentration of methane gas in door well is excessively high, it is substantially reduced oxygen content in the air in valve well, operator is can lead to and stops up
Breath.Furthermore methane belongs to inflammable gas, and explosive mixture can be formed by mixing with the air in valve well, encounters electric spark and heat
There is the danger of combustion explosion when source, operator's life can be jeopardized.CO gas in valve well causes operator
The internal cell hypoxia of member, one oxygen of operator can be caused by being sucked when carbonomonoxide concentration is excessively high in carbon monoxide or well for a long time
Change carbon poisoning, serious person causes operator to suffocate；When CO in Air concentration is more than 12.5% to encounter open fire or electricity
Spark can explode, and jeopardize operator's life.It follows that arranging carbonomonoxide concentration detector and methane in valve well
Concentration detector can poppet well guard system reliability and the efficiency that pernicious gas in valve well detects can be improved.It can be with
Understand, other toxic gases and fuel gas is likely present in valve well, for example, carbon dioxide gas, nitrogen, vulcanization
Corresponding gas concentration detector can also be arranged if you need to detect the concentration of above-mentioned gas in hydrogen and oxygen.
As shown in Fig. 2, on the basis of the above embodiments, valve well guard system further includes that showing outside valve well is arranged in
Showing device 80, the setting of display device 80 is connect in 40 outside of valve well and with 60 signal of control device, for showing valve well 40
The working condition of interior harmful gas concentration and exhaust fan 70, well cover opening device 20.When it is implemented, display device 80 can
An electronic display is selected, electronic display is arranged outside valve well 40, and connect by route with control device 60, uses
To receive the concentration value of pernicious gas in valve well 40, especially to the great carbonomonoxide concentration value of physical risk and methane concentration
Value；And exhaust fan 70, well cover opening device 20 working condition and shown in electronic display, make that valve will be entered
Operator in well 40 understands harmful gas concentration value in valve well 40, and determines when to enter valve well 40 to carry out entrance
Safeguard procedures when valve well.
As shown in Fig. 2, on the basis of the above embodiments, 40 guard system of valve well further includes storage device 90, storage
Device 90 is connect with control device 60, when for recording the unlatching of harmful gas concentration value and exhaust fan 70 in valve well 40
It is long.When it is implemented, storage device 90 selects a storage chip, to harmful in the collected valve well of receiving control device 60
The working time of gas concentration value and exhaust fan 70 is simultaneously stored, and finishing operations human review's valve well guard system is facilitated
Working condition and reference also is provided for late design valve well guard system.
On the basis of the above embodiments, self-luminous fluorophor is provided on the outside of well lid 10, self-luminous fluorophor can design
At warning mark, when 10 use of well lid is in the insufficient environment of light, itself luminescent properties energy of self-luminous fluorophor is utilized
It is enough effectively 40 attachment personnel of valve well to be reminded to notice where there is valve wells 40.
On the basis of the above embodiments, exhaust fan 70 is explosion-proof exhaust fan, and the bottom of valve well 40 is arranged in.This reality
It applies in example, the flammable CO gas and methane gas of very high concentrations is full of in valve well 40, when concentration pole in valve well
When high CO gas and methane gas encounters electric spark, it may occur that explosion.For the generation for preventing valve well explosion accident,
Exhaust fan 70 in the present embodiment uses explosion-proof fan, it is to be understood that anti-explosion electric can also be used in the motor in the present embodiment
Machine.The bottom of valve well is arranged in exhaust fan, can recycle the gas in valve well, pernicious gas is discharged as early as possible.
On the basis of the above embodiments, acousto-optic prior-warning device include normal green flashing lamp, warning blinking yellow illumination lamp and
The loudspeaker of dangerous orange flashing lamp and capable of emitting different early warning sounds.It is understandable that the capable of emitting warning yellow of loudspeaker
The warning early warning sound that flashing lamp is used cooperatively, the danger early warning sound being used cooperatively with dangerous orange flashing lamp and with green flashing lamp
The releasing early warning sound being used cooperatively.When it is implemented, acousto-optic prior-warning device is provided with the flashing lamp of three groups of different colors, respectively
It is normal green flashing lamp, warning blinking yellow illumination lamp and dangerous orange flashing lamp；The flashing lamp of three kinds of different colours is corresponding not
Same harmful gas concentration value.When the harmful gas concentration in valve well exceeds the harmful gas concentration early warning of control device setting
When value, the size of harmful gas concentration early warning value is exceeded according to harmful gas concentration value in valve well, judges pernicious gas at this time
Concentration value belongs to warning level or danger level；Blinking yellow illumination lamp is alerted if judging harmful gas concentration value for warning level
It lights and is risen along with warning early warning sound equipment；Dangerous orange flashing lamp lights simultaneously if judging harmful gas concentration value for danger level
It is risen with danger early warning sound equipment；If harmful gas concentration value is lower than harmful gas concentration early warning value, green flashing lamp in valve well
It lights, and loudspeaker issues and releases early warning sound.The flashing lamp of three kinds of different colours combines setting raising there are three types of different early warning sounds
Sound device reminds the situation of harmful gas concentration in operator's valve well jointly, improves the reliable of valve well guard system early warning
Property.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of valve well guard system, which is characterized in that pre- including well lid, gas-detecting device, well cover opening device, acousto-optic
Alarm device, control device and exhaust fan；
The gas-detecting device, well cover opening device and exhaust fan are arranged in the valve well, wherein the well lid is opened
Device and the well lid are sequentially connected；
The acousto-optic prior-warning device is arranged on the outside of the well lid；
The control device respectively with the gas-detecting device, well cover opening device, exhaust fan and acousto-optic prior-warning device signal
Connection；When the harmful gas concentration value in the valve well that the gas-detecting device detects is greater than the nocuousness of control device setting
When gas concentration early warning value, the control device control well cover opening device opens well lid, and the control exhaust fan and sound
Light prior-warning device is started to work.
2. valve well guard system according to claim 1, which is characterized in that the well lid one side edge is provided with pin
Axis, the well lid are hinged on the well head edge of the valve well by pin shaft.
3. valve well guard system according to claim 2, which is characterized in that the well cover opening device include motor and
Crank throw；
One end of the crank throw is fixedly connected with the output shaft of the motor, and the other end of the crank throw and the well lid are hinged.
4. valve well guard system according to claim 2, which is characterized in that the well cover opening device includes hydraulic work
Dynamic cylinder；
The output rod of the hydraulic actuator and the well lid are hinged.
5. valve well guard system according to claim 1, which is characterized in that the gas-detecting device includes an oxidation
Concentration of carbon detector and methane concentration detector.
6. valve well guard system according to claim 1, which is characterized in that the valve well guard system further includes setting
The display device outside the valve well is set, the display device is connect with the control device signal, for showing valve well
The working condition of interior harmful gas concentration value and the exhaust fan, well cover opening device.
7. valve well guard system according to claim 1, which is characterized in that the valve well guard system further includes depositing
Storage device, the storage device are connect with the control device, for storing harmful gas concentration value and air draft in valve well
The opening time of fan.
8. valve well guard system according to claim 1, which is characterized in that it is glimmering to be provided with self-luminous on the outside of the well lid
Body of light.
9. valve well guard system according to claim 1, which is characterized in that the exhaust fan is explosion-proof exhaust fan,
The bottom of valve well is set.
10. valve well guard system according to claim 1, which is characterized in that the acousto-optic prior-warning device includes normal
The loudspeaker of green flashing lamp, warning blinking yellow illumination lamp and dangerous orange flashing lamp and capable of emitting different early warning sounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820819783.XU CN208330277U (en) | 2018-05-30 | 2018-05-30 | Valve well guard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820819783.XU CN208330277U (en) | 2018-05-30 | 2018-05-30 | Valve well guard system |
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| Publication Number | Publication Date |
|---|---|
| CN208330277U true CN208330277U (en) | 2019-01-04 |
Family
ID=64775982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820819783.XU Active CN208330277U (en) | 2018-05-30 | 2018-05-30 | Valve well guard system |
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| CN (1) | CN208330277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164100A (en) * | 2019-06-25 | 2019-08-23 | 重庆市农业机械化学校 | A kind of electronic alerts device |
| CN110657839A (en) * | 2019-10-12 | 2020-01-07 | 沈阳航空航天大学 | Well lid safety monitoring system |
-
2018
- 2018-05-30 CN CN201820819783.XU patent/CN208330277U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164100A (en) * | 2019-06-25 | 2019-08-23 | 重庆市农业机械化学校 | A kind of electronic alerts device |
| CN110164100B (en) * | 2019-06-25 | 2020-11-17 | 重庆市农业机械化学校 | Electronic alarm device |
| CN110657839A (en) * | 2019-10-12 | 2020-01-07 | 沈阳航空航天大学 | Well lid safety monitoring system |
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