CN210289999U - Action early warning device for brake of hydroelectric generating set - Google Patents
Action early warning device for brake of hydroelectric generating set Download PDFInfo
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- CN210289999U CN210289999U CN201920863862.5U CN201920863862U CN210289999U CN 210289999 U CN210289999 U CN 210289999U CN 201920863862 U CN201920863862 U CN 201920863862U CN 210289999 U CN210289999 U CN 210289999U
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- relay
- control box
- early warning
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- brake
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The action early warning device for the brake of the hydroelectric generating set is characterized by comprising a monitoring control box, an early warning control box and an infrared monitor. The monitoring control box is arranged near the brake on-site control cabinet and is provided with: the intelligent control system comprises command indicator lamps HL 1-3, a control power supply normal indicator lamp HL4, an action early warning button SB0, power switches QF 1-2, a power module U, a power supply monitoring relay ZJ, command extension relays KA 1-3, intermediate relays K1-2, time relays KT 1-2 and a terminal block X1. The early warning control box is installed near the brake body, is equipped with: alarm AD, command button SB1 ~ 3, terminal row X2. The infrared monitor is composed of an infrared grating sensor HW and a fixing frame and is arranged beside a manual operation handle in a brake local control cabinet. The utility model is suitable for a hydroelectric set of all kinds of differences, the work efficiency that can effectual improvement brake inspection, debugging promotes the work security, ensures that the site personnel avoid the injury.
Description
Technical Field
The utility model belongs to the technical field of hydroelectric set, in particular to action early warning device of hydroelectric set brake.
Background
The water turbine generator set generally adopts the mode of mechanical braking to reduce down time in the shut down process, avoids the unit to operate under low rotational speed for a long time. The mechanical brake system mainly comprises a brake, a pipeline, a manual control device, an automatic control device and the like. In the installation, overhaul, debugging and maintenance processes of each hydropower station unit, the mechanical brake system is required to be checked and tested frequently. At this time, the worker near the brake body needs to cooperate with the external operator to perform the brake input and exit operations. The existing working mode is that two persons communicate and cooperate with each other through communication equipment such as an interphone and the like. Because the brake gate is arranged in the hydroelectric generating set, the space is narrow, the operation environment is poor, the communication signal interference is large, the noise is high, and the phenomena of unclear instructions and unsmooth communication often occur when communication equipment such as an interphone is used for communication, so that the working efficiency is influenced; especially when the instruction is unclear, the misoperation of the operator is easily caused, and further the personal injury of the worker is caused.
Disclosure of Invention
The utility model aims to provide a to the unsafe factor that exists in current mechanical braking system inspection, the test process, provide one kind and possess instruction transmission function, help the instruction transmission in the working process, improve complex efficiency and exactness, reduce the hydraulic generator set brake action early warning device of maloperation, protect the staff to avoid the injury.
The utility model discloses the technical scheme who adopts is a hydroelectric set brake action early warning device, and its key point lies in that it comprises monitor control box, early warning control box, infrared monitor, and monitor control box is equipped with: a do not operate indicator lamp HL1, a please put in indicator lamp HL2, a please withdraw indicator lamp HL3, a control power supply normal indicator lamp HL4, an action early warning button SB0, an input power supply switch QF1, a power supply module U, a control power supply switch QF2, a control power supply monitoring relay ZJ, a do not operate a command extension relay KA1, a please put in command extension relay KA2, a please withdraw a command extension relay KA3, a remote put-in relay K1, a remote withdraw relay K2, a put-in delay relay KT1, a withdraw delay relay KT2 and a monitoring control box terminal row X1; the early warning control box is equipped with: an alarm AD, a Do not operate button SB1, a throw-in button SB2, a quit button SB3 and an early warning control box terminal row X2; the infrared monitor is composed of an infrared grating sensor HW and a fixing frame; an alarm AD, a Do not operate button SB1, a throw-in button SB2 and a quit button SB3 in the early warning control box are respectively connected with the corresponding terminals of the early warning control box terminal row X2; an input power switch QF1 in the monitoring control box is connected with an input end of a power module U, an output end of the power module U is connected with a control power switch QF2, a Do-not-operate indicator HL1 is connected with a coil of a Do-not-operate command expansion relay KA1 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an input indicator HL2 is connected with a coil of a input command expansion relay KA2 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an exit indicator HL3 is connected with a coil of an exit command expansion relay KA3 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, a control power normal indicator HL4, a coil of a control power monitoring relay ZJ is connected with a control power switch QF2 in parallel, a remote coil of a remote input relay K1 is connected with a coil of an input delay relay KT1 in parallel and then is connected with a monitoring control box terminal row X1, a coil of a remote relay K2 and a remote relay KT is connected with a, the normally open contact of the action early warning button SB0, the normally open contact of the remote input relay K1, the normally open contact of the remote exit relay K2 and the normally open contact of the infrared grating sensor HW are connected in parallel, the terminal row X2 of the early warning control box and the infrared grating sensor HW are respectively connected with the corresponding terminal of the terminal row X1 of the monitoring control box through cables, the operation-not-required button SB1 is connected with the circuit of the operation-not-required indicator HL1, the input-required button SB2 is connected with the circuit of the input-required indicator HL2, and the exit-required button SB3 is connected with the circuit of the exit-required indicator HL 3.
The input power used may be 220V ac or 220V dc.
The power supply module U outputs 24V direct current power supply.
The used infrared grating sensor HW adopts 24V direct current power supply and can output a pair of normally open contacts.
The buttons SB0, SB1, SB2, SB3 used are holding type buttons.
And the monitoring control box terminal block X1 is used for power supply incoming lines, connection of an early warning control box, connection of an infrared monitor, connection of a monitoring system, connection of brake solenoid valves and other cables.
And the early warning control box terminal row X2 is used for connecting the wiring connection of the monitoring control box cable.
The utility model discloses when the manually operation brake gate drops into/withdraws from, utilize the manual drop into/withdraw from operating handle of infrared grating sensor HW monitoring brake gate, when someone prepares to carry out manually operation, be close to the in-process of handle at the staff portion, trigger infrared grating sensor HW, near the alarm AD of linkage brake gate body gives the staff early warning in advance.
The utility model discloses when the operation brake in a distant place drops into/withdraws from, drop into/withdraw from the order with the brake in a distant place earlier and lead on the relay K1 withdraws from in a distant place drops into relay K2 in a distant place, alarm AD near linkage brake body gives the staff early warning in advance, drops into/withdraws from the order with the brake after the time delay again and sends the brake and drop into/reset the solenoid valve, carries out the drop into/withdraw from of brake.
The utility model discloses a gain effect: the utility model discloses when the manually operation brake drops into/withdraws from, utilize infrared monitor can link near the alarm of brake body early warning control box in advance, give near staff's early warning, effectively avoid because link up the personnel injury that probably caused such as unsmooth or maloperation.
The utility model discloses when the distant place was operated, the alarm of near early warning control box of earlier action brake body can give near staff early warning in advance, through the back action brake of delay again, can effectively avoid because link up the personnel injury that probably caused such as smooth or maloperation.
The utility model discloses a button and alarm of early warning control box and monitoring control box's button and pilot lamp can make near the brake body staff and outside operating personnel communicate more smoothly, and the signal is more clear accurate, reduces the possibility of maloperation, improves the efficiency and the exactness of work.
Drawings
FIG. 1 is a schematic view of the present invention
FIG. 2 is a surface layout diagram of the monitoring control box of the utility model
FIG. 3 is the inside layout of the monitor control box of the utility model
FIG. 4 is a surface layout diagram of the early warning control box of the present invention
FIG. 5 is an electrical schematic diagram of the present invention
Wherein: 1 monitoring control box, 2 early warning control box, 3 infrared monitor, QF1 input power switch, U power module, QF2 control power switch, ZJ control power monitoring relay, SB0 action early warning button, HL1 request no operation indicator, HL2 request to put in indicator, HL3 request to withdraw indicator, HL4 control power normal indicator, KA1 request no operation command extension relay, KA2 request to put in command extension relay, KA3 request to withdraw command extension relay, K1 remote input relay, K2 remote withdraw relay, KT1 input delay relay, KT2 exit delay relay, X1 monitoring control box terminal row, SB1 request no operation button, SB2 request to put in button, SB3 request to withdraw button, AD alarm, X2 early warning control box terminal row, HW is an infrared grating sensor.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The utility model discloses hydroelectric set brake's action early warning device comprises monitoring control box 1, early warning control box 2, infrared monitor 3. The infrared monitor is composed of an infrared grating sensor HW and a fixed frame, wherein the infrared grating sensor HW adopts 24V direct current power supply and can output a pair of normally open contacts.
As shown in fig. 1, a supervisory control box 1 is installed near the brake on-site control cabinet for on-site operator observation and manipulation. The early warning control box 2 is arranged near the brake body, so that a worker near the brake body sends an instruction and receives an early warning signal of an alarm. An infrared monitor 3 is mounted in the brake control cabinet at a suitable location adjacent the manual operating handle to provide an alarm signal when a person's hand is in proximity to the operating handle. And a working power supply and an alarm signal are transmitted between the monitoring control box 1 and the infrared monitor 3 through cables. The early warning control box 2 sends out: the command of the do not operate button SB1, the input request button SB2, and the exit request button SB3 is transmitted to the monitoring control box 1 through a cable, and the monitoring control box 1 outputs an operating power to the alarm device AD in the warning control box 2.
As shown in fig. 2 and 3, the monitoring and control box 1 is provided with: a do not operate indicator lamp HL1, an input indicator lamp HL2, an exit indicator lamp HL3, a control power supply normal indicator lamp HL4 and an action prewarning button SB 0. The button SB0 used is a hold type button. The monitoring control box 1 is internally provided with: the remote monitoring system comprises an input power switch QF1, a power module U, a control power switch QF2, a control power monitoring relay ZJ, a Do not operate command extension relay KA1, a put-in command extension relay KA2, a quit command extension relay KA3, a remote put-in relay K1, a remote quit relay K2, a put-in delay relay KT1, a quit delay relay KT2 and a monitoring control box terminal row X1.
As shown in fig. 4, the outer surface of the early warning control box 2 is provided with: the alarm AD, the Do not operate button SB1, the input request button SB2, the exit request button SB3, and the pre-warning control box 2 are provided with a pre-warning control box terminal row X2. The buttons used are SB1, SB2, SB3 buttons of the hold type.
As shown in fig. 5, an external ac 220V or dc 220V power is introduced to the input terminal of the power module U through the input power switch QF1, and the output terminal of the power module U outputs a dc 24V power as the control power of the device through the control power switch QF 2.
An alarm AD, a do not operate button SB1, a put-in button SB2 and a quit button SB3 in the early warning control box 2 are respectively connected with the corresponding terminals of the early warning control box terminal row X2; an input power switch QF1 in the monitoring control box 1 is connected with an input end of a power module U, an output end of the power module U is connected with a control power switch QF2, a Do-not-operate indicator HL1 is connected with a coil of a Do-not-operate command expansion relay KA1 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an input indicator HL2 is connected with a coil of a input command expansion relay KA2 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an exit indicator HL3 is connected with a coil of an exit command expansion relay KA3 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, a control power normal indicator HL4, a coil of a control power monitoring relay ZJ is connected with a control power switch QF2 in parallel, a remote coil of a remote input relay K1 is connected with a coil of an input delay relay KT1 in parallel and then is connected with a monitoring control box terminal row X1, a coil of a remote relay K2 is connected with a coil of an exit delay relay, the normally open contact of the action early warning button SB0, the normally open contact of the remote input relay K1, the normally open contact of the remote exit relay K2 and the normally open contact of the infrared grating sensor HW are connected in parallel, the terminal row X2 of the early warning control box and the infrared grating sensor HW are respectively connected with the corresponding terminal of the terminal row X1 of the monitoring control box through cables, the operation-not-required button SB1 is connected with the circuit of the operation-not-required indicator HL1, the input-required button SB2 is connected with the circuit of the input-required indicator HL2, and the exit-required button SB3 is connected with the circuit of the exit-required indicator HL 3.
The utility model discloses control power disappearance alarming function's realization, as shown in fig. 5, power monitoring relay ZJ and control power normal indicator HL4 are used for the supervisory control power whether to disappear. When the output power of the power supply module U is abnormal or the control power switch QF2 is switched off, the control power supply normal indicator lamp HL4 is turned off, the power supply monitoring relay ZJ is reset, and the normally closed point of the ZJ is closed to send a control power supply disappearance signal to the monitoring system. The normal pilot lamp HL4 of control power goes out in place operating personnel accessible, and remote operating personnel's signal of accessible monitored control system discovers the power abnormal conditions of device in time. When the control power supply is normal, the control power supply normal indicator HL4 lights, the power supply monitoring relay ZJ acts, the normally closed point of ZJ is disconnected, and the control power supply disappearance signal which is sent to the monitoring system is recovered.
The utility model discloses the realization of command transmission function, as shown in fig. 5, when pressing the hold button SB1, HL1 is bright, KA1 moves, and the normally open contact of KA1 is closed and is sent to monitored control system on the operating instruction of asking for, and local operating personnel sees that pilot lamp HL1 is bright or remote operating personnel stops operating after monitored control system sees the signal; when the hold button SB1 is pressed again, HL1 goes off, KA1 returns, and the command is released. When the holding type button SB2 is pressed, HL2 is bright, KA2 is operated, a normally open contact of KA2 is closed, a throwing-in instruction is sent to a monitoring system, and a local operator can throw in the brake after seeing that the indicator lamp HL2 is bright or a remote operator sees a signal in the monitoring system; when the hold button SB2 is pressed again, HL2 goes off, KA2 returns, and the command is released. When the holding type button SB3 is pressed, HL3 is bright, KA3 is operated, a normally open contact of KA3 is closed, an exit instruction is sent to the monitoring system, and the brake exit operation can be carried out after an operator in the spot sees that the indicator lamp HL3 is bright or a remote operator sees a signal in the monitoring system; when the hold button SB3 is pressed again, HL3 goes off, KA3 returns, and the command is released.
The utility model discloses the realization of manual early warning function, as shown in fig. 5, when pressing the hold button SB0, alarm AD begins to report to the police, reminds personnel near the brake, and the local operating personnel will operate; when the hold button SB0 is pressed again, the alarm AD stops alarming.
The utility model discloses realization of automatic early warning function of distant place operation, as shown in fig. 5, after the long pulse order that drops into the brake in the distant place was issued, the distant place drops into relay K1 action, K1 normally open contact is closed, alarm AD begins to report to the police, simultaneously, drop into delay relay KT1 and begin to time, after a period of time delay, KT1 normally open contact is closed, drop into the brake order in the distant place and issue to outside brake drop into solenoid valve control circuit, action brake solenoid valve, drop into the brake; and after the remote brake input command is reset, the remote input relay K1 is reset, and the alarm AD stops alarming. When a long pulse command for remotely withdrawing the brake is issued, the remote withdrawal relay K2 acts, the normally open contact of K2 is closed, the alarm AD gives an alarm, meanwhile, the withdrawal delay relay KT2 starts timing, after a period of time delay, the normally open contact of KT2 is closed, the remote withdrawal brake command is issued to an external brake reset electromagnetic valve control loop, the action resets the electromagnetic valve, and the brake is withdrawn; and after the remote brake withdrawing command is reset, the remote brake withdrawing relay K2 is reset, and the alarm AD stops giving an alarm.
The utility model discloses the realization of manual operation automatic early warning function, as shown in fig. 5, when someone prepares to carry out manual operation, in the process that the hand of the person is close to the operating handle, the infrared grating sensor HW is triggered, the normally open output contact of the infrared grating sensor HW is closed, the alarm AD begins to give an alarm; when the hand leaves the monitoring area, the normally open output contact of the infrared grating sensor HW is disconnected, and the alarm AD stops giving an alarm.
Claims (5)
1. The utility model provides a hydroelectric set brake action early warning device which characterized in that it comprises monitor control box (1), early warning control box (2), infrared monitor (3), and monitor control box is equipped with: a do not operate indicator lamp HL1, a please put in indicator lamp HL2, a please withdraw indicator lamp HL3, a control power supply normal indicator lamp HL4, an action early warning button SB0, an input power supply switch QF1, a power supply module U, a control power supply switch QF2, a control power supply monitoring relay ZJ, a do not operate a command extension relay KA1, a please put in command extension relay KA2, a please withdraw a command extension relay KA3, a remote put-in relay K1, a remote withdraw relay K2, a put-in delay relay KT1, a withdraw delay relay KT2 and a monitoring control box terminal row X1; the early warning control box is equipped with: an alarm AD, a Do not operate button SB1, a throw-in button SB2, a quit button SB3 and an early warning control box terminal row X2; the infrared monitor (3) is composed of an infrared grating sensor HW and a fixing frame; an alarm AD, a Do not operate button SB1, a throw-in button SB2 and a quit button SB3 in the early warning control box are respectively connected with the corresponding terminals of the early warning control box terminal row X2; an input power switch QF1 in the monitoring control box is connected with an input end of a power module U, an output end of the power module U is connected with a control power switch QF2, a Do-not-operate indicator HL1 is connected with a coil of a Do-not-operate command expansion relay KA1 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an input indicator HL2 is connected with a coil of a input command expansion relay KA2 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, an exit indicator HL3 is connected with a coil of an exit command expansion relay KA3 in parallel and then is connected with a terminal corresponding to a monitoring control box terminal row X1, a control power normal indicator HL4, a coil of a control power monitoring relay ZJ is connected with a control power switch QF2 in parallel, a remote coil of a remote input relay K1 is connected with a coil of an input delay relay KT1 in parallel and then is connected with a monitoring control box terminal row X1, a coil of a remote relay K2 and a remote relay KT is connected with a, the normally open contact of the action early warning button SB0, the normally open contact of the remote input relay K1, the normally open contact of the remote exit relay K and the normally open contact of the infrared grating sensor HW are connected in parallel, the early warning control box terminal row X2 and the infrared grating sensor HW are respectively connected with the corresponding terminals of the monitoring control box terminal row X1 through cables, the operation-requesting button SB1 is connected with the operation-requesting indicator HL1 circuit, the input-requesting button SB2 is connected with the input-requesting indicator HL2 circuit, and the exit-requesting button SB3 is connected with the exit-requesting indicator HL3 circuit.
2. The brake action early warning device for the hydroelectric generating set according to claim 1, wherein the input power source used can be 220V AC power source or 220V DC power source.
3. The action early warning device of the brake of the hydroelectric generating set according to claim 1, wherein the power module U outputs 24V DC power.
4. The action early warning device for the brake of the hydroelectric generating set according to claim 1, wherein the used infrared grating sensor HW is supplied with 24V direct current and can output a pair of normally open contacts.
5. The brake operation early warning device of the hydroelectric generating set according to claim 1, wherein the used buttons SB0, SB1, SB2 and SB3 are holding buttons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863862.5U CN210289999U (en) | 2019-06-11 | 2019-06-11 | Action early warning device for brake of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863862.5U CN210289999U (en) | 2019-06-11 | 2019-06-11 | Action early warning device for brake of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210289999U true CN210289999U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863862.5U Active CN210289999U (en) | 2019-06-11 | 2019-06-11 | Action early warning device for brake of hydroelectric generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210289999U (en) |
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2019
- 2019-06-11 CN CN201920863862.5U patent/CN210289999U/en active Active
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