CN116659624B - Hydropower station flooding factory building alarm device - Google Patents
Hydropower station flooding factory building alarm device Download PDFInfo
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- CN116659624B CN116659624B CN202310892870.3A CN202310892870A CN116659624B CN 116659624 B CN116659624 B CN 116659624B CN 202310892870 A CN202310892870 A CN 202310892870A CN 116659624 B CN116659624 B CN 116659624B
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000003139 buffering effect Effects 0.000 claims abstract description 10
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- 210000001503 joint Anatomy 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F23/60—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
- G01F23/603—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means using electromechanically actuated indicating means
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
Abstract
The application relates to the technical field of hydropower plant alarm, in particular to a hydropower plant water logging alarm device which comprises a supporting mechanism, a water logging alarm device and a water logging alarm device, wherein the supporting mechanism comprises a placing piece and a supporting piece arranged on the placing piece; the alarm mechanism comprises an alarm controller arranged on the supporting piece and a control joint arranged on the alarm controller; the control mechanism comprises a limiting piece arranged on the supporting piece and a plugging communicating vessel slidingly arranged on the limiting piece; the buoyancy lifting mechanism comprises a telescopic component arranged on the supporting component and a buffering pushing component which is slidably arranged on the telescopic component, the buffering pushing component can push the plug-in communicating vessel to slide after a certain distance is needed to slide upwards or downwards, and when the liquid level changes, the buoyancy lifting mechanism has a certain buffering effect, and can avoid alarm state interruption caused by up-and-down fluctuation of a floating stop caused by the change of the water level and frequent stop and start of the drainage pump.
Description
Technical Field
The application relates to the technical field of hydropower plant alarming, in particular to a hydropower plant flooding alarming device.
Background
The hydropower plant is a plant for converting potential energy and kinetic energy of water into electric energy, the hydropower plant water flooding plant alarm device is used for monitoring the water level of the drainage gallery, and after the water level of the drainage gallery reaches a certain height, alarm light words of the water flooding plant and alarm signals of the water flooding plant appear in the monitoring system, the water flooding plant is pre-warned, the drainage pump in the plant is started in advance, and the damage of electromechanical equipment of the whole plant is prevented. Particularly, in the annual flood season of the hydropower plant, the water supply amount is large, the reservoir water level can rise rapidly, the flood prevention task is heavy, the safety of the power grid is ensured in the peak summer, the life and property safety of the downstream people are ensured, and therefore, the hydropower plant is mostly required to be provided with a flood plant alarm device.
Most alarm devices adopt the height of cursory detection water level, trigger the switch of reporting to the police through the change of cursory height, however because the liquid level of drainage corridor interior water rises the back, the surface of water is in unstable state, there is the wave easily, cause cursory fluctuation about constantly for alarm state is interrupted easily, influence the use and experience, and ordinary alarm device also can control the in-plant drain pump and carry out the drainage when beginning to report to the police, intermittent type starts the drainage and increases drainage device's burden easily, and drainage effect is not good.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The application is provided in view of the problem that the above or the prior art has continuous fluctuation of the buoy, so that the alarm state is easy to be interrupted.
Therefore, the application aims to provide a hydropower plant flooding plant alarm device.
In order to solve the technical problems, the application provides the following technical scheme: the warning device for the hydropower plant flooded factory building comprises a supporting mechanism, a warning device and a warning device, wherein the supporting mechanism comprises a placing piece and a supporting piece arranged on the placing piece; the alarm mechanism comprises an alarm controller arranged on the supporting piece and a control joint arranged on the alarm controller; the control mechanism comprises a limiting piece arranged on the supporting piece and a plugging communicating vessel slidingly arranged on the limiting piece; the buoyancy lifting mechanism comprises a telescopic component arranged on the supporting piece, a buffering pushing piece slidingly arranged on the telescopic component and a buoy arranged on the buffering pushing piece; the buffer pushing piece comprises a buffer sleeve which is slidably arranged on the telescopic component and a pushing part which is arranged on the buffer sleeve; the pushing part comprises a lower pushing block and an upper pushing block which are arranged on the buffer sleeve.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the telescopic component comprises a positioning piece arranged on the supporting piece and a sliding piece slidingly arranged on the positioning piece; the positioning piece comprises a positioning rod arranged on the supporting piece and a positioning groove arranged on the positioning rod; the sliding piece comprises a sliding sleeve which is slidably arranged on the positioning rod, and a containing groove which is arranged on the sliding sleeve.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the buoyancy lifting mechanism further comprises a clamping assembly arranged on the sliding piece; the positioning piece further comprises a clamping groove arranged on the positioning groove; the sliding piece further comprises a sliding groove and a containing cavity which are arranged on the sliding sleeve; the clamping assembly comprises an upper blocking block and a lower fixing block which are arranged on the accommodating cavity, an elastic clamping piece which is arranged on the lower fixing block, and a plug pin piece which is arranged on the sliding groove in a sliding mode.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the clamping assembly further comprises a shielding plate arranged on the accommodating cavity; the elastic clamping piece comprises a short arc part, a clamping part and a long arc part which are sequentially connected; the plug pin piece comprises a push plate which is arranged on the sliding groove in a sliding mode, and a deflector rod which is arranged on the push plate.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the buffer sleeve comprises an outer sleeve which is slidably arranged on the sliding sleeve, a chute which is arranged on the outer sleeve, and a drainage chute which is arranged on the outer sleeve; the sliding piece further comprises a convex block arranged on the sliding sleeve; the buoy is provided with an inclined plane.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the placement piece comprises a placement base; the support piece comprises a support column arranged on the placing base and a support plate arranged on the support column.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the plug-in connector comprises a sliding rod which is slidingly arranged on the limiting piece, a connecting piece which is arranged on the sliding rod, and a pushing piece which is arranged on the sliding rod; the limiting piece comprises a limiting sleeve arranged on the supporting plate and a limiting groove arranged on the limiting sleeve.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the control joint comprises a butt joint arranged on the supporting plate, and a primary metal sheet and a secondary metal sheet which are arranged on the butt joint; the connecting piece comprises a plug connector arranged on the sliding rod and a connecting piece arranged on the plug connector.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the device also comprises a jamming prevention mechanism; the anti-jamming mechanism comprises a pontoon slidingly arranged on the supporting column and a push rod piece arranged on the pontoon; the support piece further comprises a lower limiting ring and an upper limiting ring which are arranged on the support column.
As a preferable scheme of the hydropower plant flooding plant alarming device, the application comprises the following steps: the placing piece further comprises an embedded groove arranged on the placing base; the push rod piece comprises a connecting rod arranged on the pontoon and a T-shaped plate arranged on the connecting rod.
The hydropower plant flooding plant alarming device has the beneficial effects that: the buffer pushing piece can push the plug-in communicating vessel to slide after sliding upwards or downwards for a certain distance, has a certain buffer effect when the liquid level changes, and can avoid the interruption of an alarm state caused by the up-and-down fluctuation of the floating stop caused by the change of the water level and the frequent stop and start of the drainage pump.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall schematic diagram of a hydropower plant flooding warning device.
FIG. 2 is a schematic diagram of a structure of a jam-preventing mechanism of an alarm device for a hydropower plant flooded factory building.
FIG. 3 is a schematic diagram of a buoyancy lift mechanism of a hydropower plant flooding warning device.
Fig. 4 is an enlarged schematic view of the structure a in fig. 3.
FIG. 5 is a schematic view of the open structure of the slide of the warning device for a flooded plant in a hydropower plant.
Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.
FIG. 7 is a schematic diagram of a buffer pusher of a hydropower plant flooding warning device.
FIG. 8 is a schematic diagram of the structure of the positioning element of the warning device for a flooded plant in a hydropower plant.
FIG. 9 is a schematic diagram of the interfacing structure of the control connector and plug connector of the warning device for a hydropower plant flooded plant.
FIG. 10 is a schematic diagram of the distribution structure of the push-down block and the push-up block of the warning device of the hydropower plant flooded factory.
In the figure:
100. a support mechanism;
101. a placement member; 102. a support;
101a, placing a base; 101b, an embedded groove;
102a, support columns; 102b, a support plate; 102c, a lower limiting ring; 102d, an upper limiting ring;
200. an alarm mechanism;
201. an alarm controller; 202. a control joint;
202a, butt joint; 202b, a first-stage metal sheet; 202c, a secondary metal sheet;
300. a control mechanism;
301. a limiting piece; 302. plugging a communicating vessel;
301a, a limit sleeve; 301b, a limit groove;
302a, a slide bar; 302b, pushing a sheet; 302c, a switch-on member;
302c-1, plug; 302c-2, a connecting piece;
400. a buoyancy lifting mechanism;
401. a telescoping assembly; 402. a buffer pusher; 403. a float; 404. a clamping assembly; m, inclined plane;
401a, a positioning piece; 401b, a slider;
401a-1, a positioning rod; 401a-2, a positioning groove; 401a-3, a clamping groove;
401b-1, sliding sleeve; 401b-2, a receiving groove; 401b-3, bumps; 401b-4, a slip groove; 401b-5, a receiving cavity;
402a, a buffer sleeve; 402b, a pushing part;
402a-1, an outer sleeve; 402a-2, chute; 402a-3, drainage channels;
402b-1, push down block; 402b-2, push-up block;
404a, upper blocking blocks; 404b, a lower fixed block; 404c, elastic clamping pieces; 404d, a plug pin member; 404e, a shielding plate;
404c-1, short arc portion; 404c-2, a clamping portion; 404c-3, long arc portion;
404d-1, push plate; 404d-2, a toggle lever;
500. a jamming prevention mechanism;
501. a pontoon; 502. a pushing rod piece;
502a, a connecting rod; 502b, T-shaped plate.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Embodiment 1, referring to fig. 1 to 10, is a first embodiment of the present application, and the embodiment provides a hydropower station flooding plant alarm device, which includes a support mechanism 100, including a placement member 101, and a support member 102 disposed on the placement member 101; an alarm mechanism 200 comprising an alarm controller 201 provided on the support 102, and a control joint 202 provided on the alarm controller 201; the control mechanism 300 comprises a limiting piece 301 arranged on the supporting piece 102 and a plug-in connector 302 slidably arranged on the limiting piece 301; the buoyancy lifting mechanism 400 comprises a telescopic assembly 401 arranged on the supporting piece 102, a buffering pushing piece 402 slidingly arranged on the telescopic assembly 401, and a buoy 403 arranged on the buffering pushing piece 402.
In this embodiment, the placing member 101 is placed in the drainage gallery, when the water level in the drainage gallery rises, the float 403 will push up the buffer pushing member 402 through its own buoyancy, after the buffer pushing member 402 rises a certain distance, the telescopic assembly 401 can be pushed to stretch out and draw back by itself, at this time, the buffer pushing member 402 just pushes up the plugging communicating vessel 302, the plugging communicating vessel 302 slides up in the inside of the limiting member 301, finally, the plugging communicating vessel 302 is inserted into the control joint 202, so as to realize the communication of the circuit, and the alarm controller 201 starts to alarm.
It should be noted that, the alarm controller 201 is also connected to the drain pump, when the plug-in connector 302 is inserted into the control connector 202 to realize the connection of the circuit, the drain pump starts to operate to drain, the water level in the drain gallery drops after draining, and the float 403 drops by self weight to drive the buffer pushing member 402 to slide down by a certain distance, and then the buffer pushing member 402 and the telescopic assembly 401 cannot slide down, so that the buffer pushing member 402 just can push down the plug-in connector 302 and drive the telescopic assembly 401 to stretch out and draw back.
In summary, the buffer pushing member 402 needs to slide up or down a certain distance before pushing the plug-in connector 302 to slide, and has a certain buffer effect when the liquid level changes, so as to avoid the interruption of the alarm state caused by the up-and-down fluctuation of the float 403 caused by the change of the water level, and the frequent stop and start of the drain pump.
Further, the buffer pushing member 402 includes a buffer sleeve 402a slidably disposed on the telescopic assembly 401, and a pushing portion 402b disposed on the buffer sleeve 402 a; the pushing portion 402b includes a push-down block 402b-1 and a push-up block 402b-2 disposed on the buffer sleeve 402a, in this embodiment, the push-down block 402b-1 and the push-up block 402b-2 are fixedly disposed on the outer wall of the buffer sleeve 402a, and a certain distance exists between them, the buffer sleeve 402a can slide up and down a certain distance outside the telescopic assembly 401, when the buffer sleeve 402a slides up to a maximum distance, the push-down block 402b-1 collides with the plug connector 302, when the buffer sleeve 402a slides down to a maximum distance, the push-up block 402b-2 collides with the plug connector 302, and in a collision state, the plug connector 302 can be driven to slide inside the limiting member 301 through the sliding of the buffer sleeve 402a, so as to control the connection and separation of the plug connector 302 and the control joint 202.
Specifically, the telescopic assembly 401 includes a positioning member 401a disposed on the support member 102, and a sliding member 401b slidably disposed on the positioning member 401 a; in the present embodiment, the slider 401b can slide up and down outside the positioning member 401 a.
Preferably, the positioning member 401a comprises a positioning rod 401a-1 arranged on the supporting member 102 and a positioning groove 401a-2 arranged on the positioning rod 401 a-1; in this embodiment, the positioning rod 401a-1 is fixedly disposed on the supporting member 102, and as shown in fig. 8, the positioning slots 401a-2 are formed on both sides of the positioning rod 401 a-1.
Wherein the sliding member 401b includes a sliding sleeve 401b-1 slidably disposed on the positioning rod 401a-1, and a receiving groove 401b-2 disposed on the sliding sleeve 401b-1, in this embodiment, the inner surface size of the receiving groove 401b-2 and the outer surface size of the positioning rod 401a-1 are matched with each other, and the sliding sleeve 401b-1 can slide outside the positioning rod 401 a-1.
When the drainage gallery is used, the alarm controller 201 is connected with the drainage pump and the monitoring system, when the water level in the drainage gallery rises, the buoy 403 rises under the buoyancy effect of water, so that the buffer sleeve 402a rises, after the buffer sleeve 402a rises to a certain distance, the push-down block 402b-1 collides with the plug-in communicating vessel 302, at the moment, the water level continues to rise, the buffer sleeve 402a pushes the telescopic component 401 to stretch and contract, the plug-in communicating vessel 302 is pushed up, the plug-in communicating vessel 302 slides in the limiting part 301 to rise, finally, the plug-in communicating vessel 302 is inserted into the control joint 202, the circuit is communicated, the alarm controller 201 is controlled to start alarming, and meanwhile, the drainage pump starts to work to drain.
When the drainage operation is performed, the liquid level can drop due to the drainage of water, and because of the space between the upper push block 402b-2 and the lower push block 402b-1, the sliding down of the buffer sleeve 402a does not directly drive the plug connector 302 to be pulled out from the control joint 202, so that the continuous operation of the drainage pump is ensured, in addition, when the liquid level in the drainage gallery fluctuates both during drainage and water flushing, the float 403 can float up and down, and because of the space between the upper push block 402b-2 and the lower push block 402b-1, the sliding down of the buffer sleeve 402a in a reciprocating manner does not always drive the sliding of the plug connector 302, so that a certain buffering effect is achieved.
When the water in the drainage gallery is continuously discharged and enters the safe range, the liquid level is lowered to the safe range, the upper push block 402b-2 just collides with the plug-in communicating vessel 302 when the water is at the safe liquid level, the drainage pump continues to work, the liquid level continues to descend, and finally the upper push block 402b-2 slides downwards to push the plug-in communicating vessel 302 and the control joint 202 to separate under the action of the gravity of the float 403, so that the alarm and the drainage are stopped.
In summary, the float 403 will not cause interruption of the alarm state and continuous start and shut-off of the drain pump due to continuous up and down fluctuation.
Embodiment 2 referring to fig. 1 to 10, in a second embodiment of the present application, unlike the previous embodiment, the buoyancy lift mechanism 400 further includes a clamping assembly 404 disposed on the slider 401b; in this embodiment, the clamping assembly 404 can clamp the sliding member 401b and the positioning member 401 a.
Further, the positioning piece 401a further comprises a clamping groove 401a-3 arranged on the positioning groove 401a-2; the sliding piece 401b also comprises a sliding groove 401b-4 and a containing cavity 401b-5 which are arranged on the sliding sleeve 401 b-1; in this embodiment, the surface of the positioning groove 401a-2 is uniformly provided with a plurality of clamping grooves 401a-3, the surface of the clamping groove 401a-3 close to the float 403 is a cambered surface, and the surface far away from the float 403 is a plane.
Further, the clamping assembly 404 includes an upper blocking block 404a and a lower fixing block 404b disposed on the accommodating cavity 401b-5, and an elastic clamping member 404c disposed on the lower fixing block 404b, and further includes a latch member 404d slidably disposed on the sliding groove 401b-4, in this embodiment, the upper blocking block 404a and the lower fixing block 404b are fixedly disposed in the accommodating cavity 401b-5, the lower fixing block 404b is fixedly connected with the elastic clamping member 404c, the elastic clamping member 404c can deform and mutually clamp with the clamping groove 401a-3, so as to form a unidirectional locking structure, so that the sliding member 401b can only slide down and not slide up, the latch member 404d can slide in the sliding groove 401b-4, and then can push the elastic clamping member 404c to deform, thereby releasing the clamping between the elastic clamping member 404c and the clamping groove 401 a-3.
Specifically, the clamping assembly 404 further includes a shielding plate 404e disposed on the accommodating cavity 401b-5, and in this embodiment, the shielding plate 404e can block and limit the elastic clamping member 404c so that the elastic clamping member is located in the accommodating cavity 401b-5;
preferably, the elastic clamping member 404c comprises a short arc portion 404c-1, a clamping portion 404c-2 and a long arc portion 404c-3 which are sequentially connected; in this embodiment, one end of the long arc portion 404c-3, which is far from the short arc portion 404c-1, is fixedly connected to the lower fixing block 404b, and the locking portion 404c-2 is bent and can be locked with the locking groove 401 a-3.
It should be noted that, the pin member 404d includes a push plate 404d-1 slidably disposed on the sliding groove 401b-4, and a shift lever 404d-2 disposed on the push plate 404d-1, in this embodiment, the push plate 404d-1 and the shift lever 404d-2 are vertically distributed and fixedly connected, one side surface of the push plate 404d-1 is a cambered surface and is mutually attached to the long arc portion 404c-3, when the push plate 404d-1 slides up, the long arc portion 404c-3 can be extruded to deform, and then the clamping portion 404c-2 is received into the accommodating cavity 401b-5, so that the clamping between the clamping portion 404c-2 and the clamping groove 401a-3 is lost.
The rest of the structure is the same as in embodiment 1.
In the initial state, the clamping part 404c-2 of the elastic clamping piece 404c and the clamping groove 401a-3 are in a clamping state, when the water level rises, the float 403 floats upwards, so that the buffer sleeve 402a rises, after the buffer sleeve 402a rises a certain distance, the top end of the buffer sleeve can prop against the deflector rod 404d-2, the deflector rod 404d-2 is pushed to slide upwards by the continuous rising of the buffer sleeve 402a, the push plate 404d-1 is further pushed to slide upwards, the long arc part 404c-3 is extruded to deform, the clamping part 404c-2 is further accommodated into the accommodating cavity 401b-5, the clamping part 404c-2 and the clamping groove 401a-3 are lost, the push-down block 402b-1 just props against the plug connector 302, and the plug connector 302 slides by the continuous rising of the buffer sleeve 402 a.
When the liquid level has a descending trend, the gravity of the float 403 drives the buffer sleeve 402a to slide downwards, when the buffer sleeve 402a slides downwards, the buffer sleeve 402a loses contact with the shift lever 404d-2, the elastic clamping piece 404c has a restoring deformation trend, the push plate 404d-1 is pushed downwards to reset, meanwhile, the clamping part 404c-2 and the clamping groove 401a-3 are clamped, the friction force between the positioning piece 401a and the sliding piece 401b can be increased after the clamping part 404c-2 and the clamping groove 401a-3 are clamped, and then the buffer sleeve 402a slides downwards firstly, and after the buffer sleeve 402a slides downwards to a maximum distance outside the sliding sleeve 401b-1, the buffer sleeve 402a drives the sliding sleeve 401b-1 to slide downwards together, so that the sliding reset of the plugging communicating vessel 302 is realized.
In summary, the telescopic component 401 can keep away from the liquid level, and the connection part of the positioning piece 401a and the sliding piece 401b can not contact with water, so that corrosion, rust and clamping phenomenon caused by soaking can be avoided, and the floating 403 can slide up and down more easily.
Embodiment 3 referring to fig. 1 to 10, in a third embodiment of the present application, unlike the previous embodiment, the buffer sleeve 402a includes an outer sleeve 402a-1 slidably disposed on the sliding sleeve 401b-1, a chute 402a-2 disposed on the outer sleeve 402a-1, and a drainage groove 402a-3 disposed on the outer sleeve 402 a-1; in this embodiment, the outer sleeve 402a-1 and the sliding sleeve 401b-1 can slide, the surface of the outer sleeve 402a-1 is provided with a chute 402a-2, and one end surface of the outer sleeve 402a-1, which is close to the float 403, is uniformly provided with a plurality of drainage grooves 402a-3.
Preferably, the sliding member 401b further comprises a protrusion 401b-3 provided on the sliding sleeve 401 b-1; in this embodiment, the sliding sleeve 401b-1 is fixedly connected to the projection 401b-3, and the projection 401b-3 is slidably connected to the chute 402 a-2.
Wherein, the float 403 is provided with an inclined plane M.
It should be noted that, the push-down block 402b-1 and the push-up block 402b-2 are distributed in a staggered manner, and as shown in fig. 10, there is a certain angular deviation between the push-down block 402b-1 and the push-up block 402b-2, and the angular deviation is equivalent to the angular deviation that can be generated when the protrusion 401b-3 slides on the chute 402 a-2.
Specifically, the placement piece 101 includes a placement base 101a;
preferably, the support member 102 includes a support post 102a disposed on the placement base 101a, and a support plate 102b disposed on the support post 102a, and in this embodiment, the alarm controller 201 and the control connector 202 are fixedly disposed on the support plate 102b, wherein the control connector 202 is disposed through the support plate 102 b.
Further, the plugging connector 302 includes a sliding rod 302a slidably disposed on the limiting member 301, a connecting member 302c disposed on the sliding rod 302a, and a pushing piece 302b disposed on the sliding rod 302 a; in this embodiment, the sliding rod 302a can slide inside the limiting member 301, and the pushing piece 302b is fixedly disposed on the surface of the sliding rod 302 a.
Further, the limiting member 301 includes a limiting sleeve 301a disposed on the supporting plate 102b, and a limiting groove 301b disposed on the limiting sleeve 301a, in this embodiment, the limiting sleeve 301a is fixedly disposed at the bottom of the supporting plate 102b, the inner wall of the limiting sleeve 301a is slidably connected to the sliding rod 302a, and the limiting groove 301b is slidably connected to the pushing piece 302 b.
It should be noted that the control joint 202 includes a butt joint 202a provided on the support plate 102b, and a primary metal sheet 202b and a secondary metal sheet 202c provided on the butt joint 202 a; the connecting piece 302c includes a plug connector 302c-1 disposed on the sliding rod 302a, and a connecting piece 302c-2 disposed on the plug connector 302c-1, in this embodiment, the inner surface of the butt joint 202a is provided with a first metal sheet 202b and a second metal sheet 202c, the first metal sheet 202b and the second metal sheet 202c are respectively connected with different electrodes of the alarm controller 201, while the connecting piece 302c-2 is disposed through the plug connector 302c-1, and the connecting piece 302c-2 can be in circuit communication by contacting the first metal sheet 202b and the second metal sheet 202 c.
The rest of the structure is the same as in embodiment 2.
In use, when the liquid level rises, the float 403 pushes the buffer sleeve 402a to slide upwards, the buffer sleeve 402a can be rotated by guiding the chute 402a-2 and the projection 401b-3, when the projection 401b-3 slides to the tail end of the chute 402a-2, the push-down block 402b-1 and the push piece 302b are in an aligned state, the latch piece 404d is in a sliding state, the elastic clamping piece 404c and the clamping groove 401a-3 are unlocked, the liquid level continues to rise, the switch-on piece 302c is pushed to rise, the switch-on piece 302c is communicated with the second metal piece 202c through the connecting piece 302c-2 when the switch-on piece 302c rises into the control joint 202, the alarm controller 201 is controlled to alarm, and the drain pump is started.
When the liquid level fluctuates, the deflection of the float 403 is assisted by the inclined surface M, and the rotation of the buffer cover 402a is assisted, and the buffer is performed by the slip and rotation of the buffer cover 402 a.
When the liquid level descends, the float 403 gravity drives the buffer sleeve 402a to slide downwards, the buffer sleeve 402a can rotate under the guidance of the chute 402a-2 and the projection 401b-3, when the projection 401b-3 slides to the tail end of the chute 402a-2, the push-up block 402b-2 and the push plate 302b are in an aligned state, the continuous liquid level descends at this time, the switch-on piece 302c slides downwards, the switch-on piece 302c is pulled out from the control joint 202 to be separated, a circuit is disconnected, and the alarm and drainage operations are stopped.
When in actual use, part of water sources can be stored continuously as required in the drainage gallery, the water sources are in safe water level, part of water in the drainage gallery is required to be emptied, and drainage is performed by adopting a drainage pump, at the moment, when drainage is required, the upper pushing block 402b-2 and the pushing piece 302b are misplaced, the pushing piece 302b is pushed manually, the connecting piece 302c is inserted into the control joint 202, and the drainage pump is started to perform drainage.
In addition, in the actual use process, dust is generated in the drainage gallery, and easily enters the chute 402a-2, so that the chute 402a-2 and the projection 401b-3 are blocked, if the chute 402a-2 and the projection 401b-3 are blocked, the float 403 enters under the liquid level, the liquid level submerges the chute 402a-2, the softened dust can be pushed and extruded by being matched with the buoyancy of the upper float 403 through the water immersion dust, the outer sleeve 402a-1 can be conveniently slid upwards by the drainage groove 402a-3, and water flow and impurities are discharged from the drainage groove 402a-3 by being matched with the bottom end of the sliding sleeve 401 b-1.
In summary, through the lower push block 402b-1 and the upper push block 402b-2 which are arranged in a staggered manner, the manual pushing of the plugging communicating vessel 302 to lift and lower can be realized through adjusting the staggered angle, so as to control alarm and drainage.
Embodiment 4, referring to fig. 1 to 10, is a fourth embodiment of the present application, and unlike the previous embodiment, further includes an anti-jamming mechanism 500; the anti-jamming mechanism 500 comprises a pontoon 501 slidably arranged on a supporting column 102a, and a push rod member 502 arranged on the pontoon 501; in this embodiment, the pontoon 501 is slidably disposed on the outer wall of the supporting column 102a, and the pusher 502 is fixedly disposed on the pontoon 501.
Preferably, the supporting member 102 further includes a lower limiting ring 102c and an upper limiting ring 102d disposed on the supporting column 102a, and in this embodiment, the lower limiting ring 102c and the upper limiting ring 102d are disposed above and below the pontoon 501 respectively, and the lowest position of the pontoon 501 is controlled by the lower limiting ring 102c, so as to ensure the setting of the height Yu Fupiao 403 of the pontoon 501.
Specifically, the placement member 101 further includes an insertion groove 101b provided on the placement base 101a; the pushing member 502 includes a link 502a provided on the pontoon 501, and a T-shaped plate 502b provided on the link 502a, and in this embodiment, the T-shaped plate 502b may be placed embedded inside the embedded groove 101 b.
The rest of the structure is the same as in embodiment 3.
When the water level in the drainage gallery rises faster, if the chute 402a-2 and the convex block 401b-3 are blocked and cannot be pushed by the buoyancy of the float 403, after the water level rises to a certain height, the float 501 will slide upwards, and the float 403 is pushed upwards by the T-shaped plate 502b, the buoyancy is increased to push the buffer sleeve 402a to rotate, so that the alarm controller 201 is ensured to start the drainage function.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (6)
1. A hydropower plant flooding factory building alarm device is characterized in that: comprising the steps of (a) a step of,
a support mechanism (100) comprising a placement member (101) and a support member (102) provided on the placement member (101);
an alarm mechanism (200) comprising an alarm controller (201) provided on the support (102), and a control joint (202) provided on the alarm controller (201);
the control mechanism (300) comprises a limiting piece (301) arranged on the supporting piece (102) and a plug-in communicating vessel (302) slidingly arranged on the limiting piece (301);
the buoyancy lifting mechanism (400) comprises a telescopic component (401) arranged on the supporting piece (102), a buffering pushing piece (402) slidingly arranged on the telescopic component (401) and a buoy (403) arranged on the buffering pushing piece (402);
the buffer pushing piece (402) comprises a buffer sleeve (402 a) which is slidably arranged on the telescopic assembly (401), and a pushing part (402 b) which is arranged on the buffer sleeve (402 a);
the pushing part (402 b) comprises a pushing block (402 b-1) and a pushing block (402 b-2) which are arranged on the buffer sleeve (402 a), the pushing block (402 b-1) and the pushing block (402 b-2) are fixedly arranged on the outer wall of the buffer sleeve (402 a), and a certain interval exists between the pushing block and the pushing block;
the telescopic assembly (401) comprises a positioning piece (401 a) arranged on the supporting piece (102) and a sliding piece (401 b) slidingly arranged on the positioning piece (401 a);
the positioning piece (401 a) comprises a positioning rod (401 a-1) arranged on the supporting piece (102) and a positioning groove (401 a-2) arranged on the positioning rod (401 a-1);
the sliding piece (401 b) comprises a sliding sleeve (401 b-1) which is slidingly arranged on the positioning rod (401 a-1), and a containing groove (401 b-2) which is arranged on the sliding sleeve (401 b-1);
the buffer sleeve (402 a) comprises an outer sleeve (402 a-1) which is arranged on the sliding sleeve (401 b-1) in a sliding way, a chute (402 a-2) which is arranged on the outer sleeve (402 a-1), and a drainage groove (402 a-3) which is arranged on the outer sleeve (402 a-1);
the sliding piece (401 b) further comprises a lug (401 b-3) arranged on the sliding sleeve (401 b-1);
an inclined plane (M) is arranged on the buoy (403);
the placement piece (101) comprises a placement base (101 a);
the support (102) comprises a support column (102 a) arranged on the placing base (101 a) and a support plate (102 b) arranged on the support column (102 a);
the plug-in connector (302) comprises a sliding rod (302 a) which is slidingly arranged on the limiting piece (301), a connecting piece (302 c) which is arranged on the sliding rod (302 a), and a pushing piece (302 b) which is arranged on the sliding rod (302 a);
the limiting piece (301) comprises a limiting sleeve (301 a) arranged on the supporting plate (102 b), and a limiting groove (301 b) arranged on the limiting sleeve (301 a).
2. The hydropower plant flooding plant warning device of claim 1, wherein: the buoyancy lifting mechanism (400) further comprises a clamping assembly (404) arranged on the sliding piece (401 b);
the positioning piece (401 a) further comprises a clamping groove (401 a-3) arranged on the positioning groove (401 a-2);
the sliding piece (401 b) further comprises a sliding groove (401 b-4) and a containing cavity (401 b-5) which are arranged on the sliding sleeve (401 b-1);
the clamping assembly (404) comprises an upper blocking block (404 a) and a lower fixing block (404 b) which are arranged on the accommodating cavity (401 b-5), an elastic clamping piece (404 c) which is arranged on the lower fixing block (404 b), and a bolt piece (404 d) which is arranged on the sliding groove (401 b-4) in a sliding mode.
3. The hydropower plant flooding plant warning device of claim 2, wherein: the clamping assembly (404) further comprises a shielding plate (404 e) arranged on the accommodating cavity (401 b-5);
the elastic clamping piece (404 c) comprises a short arc part (404 c-1), a clamping part (404 c-2) and a long arc part (404 c-3) which are connected in sequence;
the plug pin piece (404 d) comprises a push plate (404 d-1) which is arranged on the sliding groove (401 b-4) in a sliding mode, and a deflector rod (404 d-2) which is arranged on the push plate (404 d-1).
4. A hydropower plant flooding plant warning device according to claim 3, characterized in that: the control joint (202) comprises a butt joint (202 a) arranged on the supporting plate (102 b), and a primary metal sheet (202 b) and a secondary metal sheet (202 c) arranged on the butt joint (202 a);
the connecting piece (302 c) comprises a plug connector (302 c-1) arranged on the sliding rod (302 a) and a connecting piece (302 c-2) arranged on the plug connector (302 c-1).
5. The hydropower plant flooding plant warning device of claim 4, wherein: also comprises a jamming prevention mechanism (500);
the anti-jamming mechanism (500) comprises a pontoon (501) slidingly arranged on the supporting column (102 a), and a push rod piece (502) arranged on the pontoon (501);
the support (102) further comprises a lower limiting ring (102 c) and an upper limiting ring (102 d) which are arranged on the support column (102 a).
6. The hydropower plant flooding plant warning device of claim 5, wherein: the placing piece (101) further comprises an embedded groove (101 b) arranged on the placing base (101 a);
the push rod piece (502) comprises a connecting rod (502 a) arranged on the pontoon (501), and a T-shaped plate (502 b) arranged on the connecting rod (502 a).
Priority Applications (1)
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| CN202310892870.3A CN116659624B (en) | 2023-07-20 | 2023-07-20 | Hydropower station flooding factory building alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310892870.3A CN116659624B (en) | 2023-07-20 | 2023-07-20 | Hydropower station flooding factory building alarm device |
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| CN116659624A CN116659624A (en) | 2023-08-29 |
| CN116659624B true CN116659624B (en) | 2023-10-20 |
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| CN116989866B (en) * | 2023-09-27 | 2023-12-08 | 三峡金沙江云川水电开发有限公司 | Hydropower station upstream water reservoir water level monitoring device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153920A (en) * | 2010-01-27 | 2011-08-11 | Denso Corp | Liquid level detector |
| CN105869360A (en) * | 2016-05-30 | 2016-08-17 | 国网山东省电力公司济南供电公司 | Oil drum low liquid level alarming device |
| CN106485882A (en) * | 2016-10-21 | 2017-03-08 | 重庆顺泽环保科技有限公司 | A kind of supervisory circuit water process processing being monitored |
| CN109518652A (en) * | 2018-11-20 | 2019-03-26 | 浙江水利水电学院 | A kind of river flood prevention device and its construction method |
| CN110017885A (en) * | 2019-04-24 | 2019-07-16 | 中国长江电力股份有限公司 | A kind of roof-mounted magnetic double level gauge automatic check device and method |
| CN211904332U (en) * | 2020-05-13 | 2020-11-10 | 安徽俏海建设工程有限公司 | Water level monitoring device for hydraulic engineering |
| CN212871406U (en) * | 2020-09-30 | 2021-04-02 | 赣州汇优品自动化设备有限公司 | Industrial automation liquid level measuring instrument with alarming function |
| CN213424175U (en) * | 2020-08-14 | 2021-06-11 | 浦峰 | Early warning equipment for flooded workshop |
| CN113916327A (en) * | 2021-11-18 | 2022-01-11 | 华能江西清洁能源有限责任公司 | Water level monitoring and alarming device for water surface photovoltaic power station |
| CN216349002U (en) * | 2021-12-16 | 2022-04-19 | 刘岩东 | Water level monitoring device for water conservancy and hydropower |
| CN217767601U (en) * | 2022-04-29 | 2022-11-08 | 华能河南中原燃气发电有限公司 | Light sense water logging alarm device |
| CN219243360U (en) * | 2023-01-10 | 2023-06-23 | 温州中陆水务科技有限公司 | Drainage pipeline wisdom monitoring early warning device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2444310A1 (en) * | 2003-10-24 | 2005-04-24 | Brian Watchel | Float adapted to track an interface between two liquids of differing density |
| KR102581262B1 (en) * | 2021-07-28 | 2023-09-22 | 한라아이엠에스 주식회사 | Fluid Level Measuring System Using Buoyancy Body |
-
2023
- 2023-07-20 CN CN202310892870.3A patent/CN116659624B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153920A (en) * | 2010-01-27 | 2011-08-11 | Denso Corp | Liquid level detector |
| CN105869360A (en) * | 2016-05-30 | 2016-08-17 | 国网山东省电力公司济南供电公司 | Oil drum low liquid level alarming device |
| CN106485882A (en) * | 2016-10-21 | 2017-03-08 | 重庆顺泽环保科技有限公司 | A kind of supervisory circuit water process processing being monitored |
| CN109518652A (en) * | 2018-11-20 | 2019-03-26 | 浙江水利水电学院 | A kind of river flood prevention device and its construction method |
| CN110017885A (en) * | 2019-04-24 | 2019-07-16 | 中国长江电力股份有限公司 | A kind of roof-mounted magnetic double level gauge automatic check device and method |
| CN211904332U (en) * | 2020-05-13 | 2020-11-10 | 安徽俏海建设工程有限公司 | Water level monitoring device for hydraulic engineering |
| CN213424175U (en) * | 2020-08-14 | 2021-06-11 | 浦峰 | Early warning equipment for flooded workshop |
| CN212871406U (en) * | 2020-09-30 | 2021-04-02 | 赣州汇优品自动化设备有限公司 | Industrial automation liquid level measuring instrument with alarming function |
| CN113916327A (en) * | 2021-11-18 | 2022-01-11 | 华能江西清洁能源有限责任公司 | Water level monitoring and alarming device for water surface photovoltaic power station |
| CN216349002U (en) * | 2021-12-16 | 2022-04-19 | 刘岩东 | Water level monitoring device for water conservancy and hydropower |
| CN217767601U (en) * | 2022-04-29 | 2022-11-08 | 华能河南中原燃气发电有限公司 | Light sense water logging alarm device |
| CN219243360U (en) * | 2023-01-10 | 2023-06-23 | 温州中陆水务科技有限公司 | Drainage pipeline wisdom monitoring early warning device |
Non-Patent Citations (2)
| Title |
|---|
| "Research of on-line Early Warning Software for Source Water Quality of Reclaimed Water Plant";Zhang Xinyang;《2011 Third International Conference on Measuring Technology and Mechatronics Automation》;第1084-1087页 * |
| "智能报警在巨型水电站监控系统中的设计与实现";张东峰;《水电与新能源》;第06卷(第35期);第57-61+64页 * |
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