CN205559233U - A mechanical type is starting drive by force for fire -fighting water pump switch board - Google Patents

Abstract

The utility model discloses a mechanical type is starting drive by force for fire -fighting water pump switch board, including a bottom plate, binding post is installed one time to one side upper end of bottom plate, install secondary binding post at the lower extreme of this side, one, install the contactor between the secondary binding post, install an arm on the contactor, install mechanical spring in the arm, install a mechanical handle of emergency on the arm, mechanical spring is in free state, the emergent mechanical handle of pulling, through mechanical spring with the power transmission to the arm, install an adjustable helping hand pole on the arm, make on the arm presses the main contact of contactor through moving down of adjustable helping hand pole. The utility model discloses a long free state that is at ordinary times of spring, the energy storage was all accomplished in push rod advancing process with release when machinery opened by force. Control circuit + mechanical energy storage operation, onset of arcing's possibility is not had in the start -up that can really ensure the motor, realize the most genuine safe, start reliably.

Description

A kind of mechanical type for Firefighting Pump Control cabinet starter by force

Technical field

This utility model relates to one starter by force, particularly relates to a kind of for fire pump control The mechanical type of cabinet processed starter by force.

Background technology

First associated specifications, standard are explained: about specification GB50974-2014 Explicitly point out on strong bar 11.0.12: Firefighting Pump Control cabinet should arrange mechanical emergency and open pumping function, and Opened when urgent by the personnel having administration authority when should ensure that the control line failure in switch board Dynamic fire pump, when mechanical emergency starts, it should be ensured that fire pump normal work in 5min after warning Make.This is compulsive clause, it is necessary to strict implement.The light current such as pressure switch, flow switch is believed Number and hand-drawn wire automatically started fire pump by relay, if weak electric signal because of fault or Relay fault can not automatic or manual start fire pump time, the machinery that fire pump room is arranged should be relied on Emergency starting device starts fire pump.When the control line failure in Fire Fighting Pump Control cabinet not When fire pump can be made automatically to start, if the repairing carrying out getting rid of line fault immediately can be by personnel Quality, temporal restriction, so in emergency circumstances can not occur what fire-fighting occurred. As long as the regulation for this this bar makes fire pump in the case of power supply is normal, no matter control circuit How can force start, to ensure the promptness of fire attack.This mechanical emergency starter exists Must be carried out by authorised person during operation, and now from the normal fortune of fire pump of reporting to the police The time turned not should be greater than 5 minutes, and this time contains management personnel from control room to fire pump The time in room, and water pump is from starting to time of normally working.

External industry is about the explanation of this strong bar:

1, the country performing reference of the strong opening device of fire pump machinery and corresponding international standard

1), GB/T 21208-2007/IEC/TS 62091:2003, " low tension switch sets MOD The standby controller with control equipment fixed fire pump driver "

2), National Fire Protection Association (NFPA) NFPA 20-2007

3), IEC IEC 62091-2007

2, the fire pump controller that above-mentioned three domestic and external standards specify " promptly run control System " or " emergency machine is run and controlled ", it is i.e. the requirement that mechanical emergency is opened pumping function, can conduct Design and the foundation of manufacturing Fire Fighting Pump Control cabinet, existing extracts is as follows:

2.1 standard GB/T/T 21208-2007/IEC/TS 62091:2003, MOD is " low Voltage switching station and the controller of control equipment fixed fire pump driver "

The 8.5.1.2 article: " the urgent urgent operation control running control controller of controller can With by a Mechanical Driven (the such as mechanically actuated of a catalyst) or by a standby switch Electrical equipment (such as catalyst, hand switch etc.) completes ...

Controller urgent runs control should reach A priority in the following manner:

A) urgent running gear should be provided for the non-automatic starting of motor and the operation of operation continuously；

B) urgent running gear should be able to be latched in run location, and mechanical caging should not be automatic, Should be that operator is selectable；

C) manual emergency actuator should be designed to only move to a direction, i.e. from open position to Final run location；

D) other position in addition to running locked position of coupler, if operator discharges manual emergency Actuator, controller should be able to automatically return to open position.

" low voltage switch equipment and control set 2.2 IEC IEC 62091-2007 The controller of standby fixed fire pump driver ", below for the provision taken passages and translate: " 8.5.1.2 The urgent urgent operation control running control controller of controller can be by a Mechanical Driven (example Mechanically actuated such as a catalyst) or by switching device (the such as catalyst, hands of a redundancy Dynamic switch etc.) complete.The switching device of this redundancy should be mechanically operable, with prevention and control Power loss processed or other control circuit component failure ".

GB GB/T21208-2007/IEC/TS 62091:2003, MOD amendment uses IEC/TS 62091:2003 standard, compares with GB, and we are " redundant electrical switching Device " it is translated as: " switching device of redundancy ", GB is then " standby device for switching ".Separately Outward, second word are the switching device requirements to redundancy, do not have the words inside GB, Other is the same about " A priority " IEC standard with GB.

2.3 National Fire Protection Association (NFPA) standard NFPA 20-2007 " fixed fire pump installation standard ", Below for the provision taken passages and translate:

Control 10.5.3.2 the emergency machine of controller is run:

10.5.3.2.1 controller must be provided with a urgent operation handle or action bars for machinery Switching mechanism on ground Guan Bi motor circuit.

10.5.3.2.1.1 handle or action bars should provide nonautomatic, the continuous print of motor to run behaviour Making, this operation is independent of any electric control circuit, electric magnet or equivalent device, is also independent of pressure The control of power switch.

10.5.3.2.1.2 this method manual operation should be able to make handle or action bars mechanical latching, Or it is maintained at startup position.

10.5.3.2.1.3 mechanical latching should not be automatic, should be that operator is selectable.

10.5.3.2.2 handle or action bars should be arranged to only move to a direction, i.e. from disconnecting position Put final run location.

10.5.3.2.3, in addition to line position for the national games, operator is in any position release lever or operation Bar, motor starter all should be able to automatically return to open position.”

Understand according to above-mentioned standard and think: mechanical emergency to be realized opens pump, and first, fire pump is electronic The main circuit of machine need to arrange a kind of switching mechanism (such as catalyst) being mechanically driven Guan Bi or The switching device of one redundancy, the switching device of this redundancy should be mechanically operable；Secondly, Need cashier's office in a shop to arrange a urgent operation handle or action bars in Fire Fighting Pump Control, in order to mechanically to close Close and state the switching device of switching mechanism or redundancy.

Prior art brief introduction: from the point of view of 1, according to prior art disclosed in certain company domestic, the most aside Cupboard (individually having one to open by force cabinet) has added the chopper of one group of slightly larger point of (two groups) capacity, The Wai Cao mechanism utilizing chopper realizes so-called machinery and opens by force function.2, in another prior art, In order in active response GB50974-2014, mechanical emergency starts function, finally develop OL-ES-QY, OL-ES-JY type mechanical emergency starter, being provided with meets an urgent need opens pump actuator, A mechanical actuation switches has been had more, by the personnel having permission than water pump control cabinet before on panel Insert key operated.Setting by Redundant Control loop, it is ensured that the feelings of main control loop total failure Under condition, remain able to open pump by standby emergency operation mechanism, open the pump time in 5min.Guarantee Full voltage starting mode and reduced-voltage starting mode all can meet the requirement of emergency starting.This device can guarantee that Under the conditions of power supply is normal, no matter how circuit can force start, not only active response Strong bar requirement in GB50974-2014 " fire water-supply and hydrant system technical specification ", especially Ensure that the promptness of fire attack, the fire supply system for us has risen double when dashing forward in case of fire The effect of insurance.

But above-mentioned present technology still suffers from many disadvantages: the machinery that prior art 1 uses opens by force and only exists Side cupboard (individually having one to open by force cabinet) has added the open circuit of one group of slightly larger point of (two groups) capacity Device, utilizes the Wai Cao mechanism of chopper to realize so-called machinery and opens by force function, and its mode is used for non-star -angle Starting mode the most likely, but runs into star angle and starts control loop, and its machinery opens by force can not By can accomplish that two choppers close a floodgate simultaneously.Chain-type drive mechanism is utilized not know with or without doing similar Load test, Feasible degree again can be how high？Those skilled in the art are also unclear as bypass simultaneously The air-break opened by force selects much redundancies to be suitable, can not find relevant demonstration at present.Existing skill The machinery that in art 2, so-called machinery opens by force function non-real opens by force, is only to meet GB The 11.0.8 provision regulation of GB50974-2014 " fire water-supply and hydrant system technical specification ", That is: fire pump, stabilized pressure pump should arrange and force termination of pumping button on the spot, and should have protection device. But this most non-strong bar, it is difficult to obtain the accreditation of skilled person in the industry.

Utility model content

The purpose of this utility model is to provide a kind of mechanical type for Firefighting Pump Control cabinet by force Starter, emergency starting is essentially full voltage starting, and its starting current can reach equipment rated current 8～10 times, simultaneously for avoiding the occurrence of arc phenomenon, Guan Bi or during cutoff circuit contact quickly close point, Solve the shortcoming that prior art exists.

This utility model adopts the following technical scheme that realization:

A kind of mechanical type for Firefighting Pump Control cabinet starter by force, including a base plate, The upper end, side of described base plate is provided with primary connection terminal, is provided with secondary in the lower end of this side and connects Line terminals, is provided with catalyst between first and second binding post, it is characterised in that described One mechanical arm is installed on catalyst, mechanical spring is installed, on mechanical arm in described mechanical arm Being provided with an emergency machine handle, mechanical spring is in free state, pulls emergency machine handle, Transfer power on mechanical arm by mechanical spring, described mechanical arm is provided with one adjustable Assister bar, makes mechanical arm directly be pressed onto described contact by moving down of described adjustable assister bar On the main contact of device.

Further, described base plate is provided with a protection shell, described protection shell has Sliding tray.

Further, described sliding tray is provided with action authority barrier device.

Advantageous Effects of the present utility model is: 1, achieves and depends merely on the purely mechanic machinery realized Qiang Qi, it is possible to only rely on machinery when controlling loop dead electricity or control system fault and just can make contact The quick-make under external force of device contact, completes the startup of pump motor.The startup time is short, Reliability is high.The program realizes machinery and opens by force utilization or former control system main contactor, does not has Having the added burden of increase equipment, major loop reduces electrical equipment failure send out without any changing Raw possibility.

2, the spring that the program uses is chronically at energy storage position, and stretching or compression all can for a long time Causing performance to reduce, it is impossible to ensure its releasing effect, intending making into is free state at ordinary times, and machinery is strong When opening, energy storage all completes with release in push rod progradation, and i.e. first energy storage discharges stored energy immediately, Make catalyst quick-make.

3, loop+mechanical energy storage mode of operation is controlled: i.e. in emergency machine handle progradation, Mechanism's leading action limit switch, this limit switch contact at once turns on, thus closes standby redundancy Control loop, obtain electric as controlled loop (directly accessing from main busbar), can directly adhesive contact Device, completes electrically activating.As non-transformer imports, then the push rod continuing to advance can realize final Machinery opens by force function.This scheme can really guarantee the possibility occurred without electric arc that starts of motor, real Reliably and securely startup the most truly.

Accompanying drawing explanation

Fig. 1 is the internal structure schematic diagram of this utility model mechanical type starter by force.

Fig. 2 is the schematic diagram of protection shell.

Fig. 3 is the schematic diagram that starter assembles after protecting shell by force.

Fig. 4 is the mechanical type starter internal structure schematic diagram by force at another visual angle.

Fig. 5 is the mechanical type starter internal structure schematic diagram by force at another visual angle.

Fig. 6 is the schematic diagram before starting operation by force.

Fig. 7 is the schematic diagram after starting operation by force.

Detailed description of the invention

By the following description to embodiment, will more contribute to public understanding this utility model, but Specific embodiment given by applicant can't be considered as this utility model technical side The restriction of case, any definition to parts or technical characteristic is changed and/or overall structure is made shape Formula and immaterial conversion is regarded as the protection domain that the technical solution of the utility model is limited.

Description of reference numerals: primary connection terminal 1.1, protection shell 1.3, base plate 1.4, secondary Binding post 1.5, emergency machine handle 1.6, action authority 1.7, mechanical arm 1.8, mechanical spring 1.9, mechanical fixed part 2.0, limit switch 2.1, adjustable assister bar 2.2

Primary connection terminal 1.1: for the reserved binding post of primary line, fire tower in Fire Control Cabinet Tool opens by force and the primary line on catalyst is directly connected across on primary connection terminal so that it is in use Can be directly accessed in corresponding Fire Control Cabinet.

Catalyst 1.2: small area analysis controls large current load, can be the most permissible with distant control Self-locking interlocks, and prevents misoperation from causing the accident, owing to being Small current control so that protection circuit letter Single reliable.Fire-fighting machinery open by force in catalyst utilize or the main contactor of former control system, Not increasing the added burden of equipment, a major loop, without any change, reduces equipment electric The possibility that fault occurs.

Protection shell 1.3: the outer cover port protection that anti-machinery opens by force is not only mechanical protection shell, Be also equipped with ground connection, shielding and etc. measure.

Base plate 1.4: dress base plate is that regular adjustable-crossbeam is installed.

Secondary wiring terminals 1.5: secondary wiring terminals and primary connection terminal are without the pass in any principle Connection；Catalyst action is the fastest, and electric arc is the least to the injury of contact, if only moving by mechanical handle Make to close or disconnect catalyst, contact can be caused to damage because of slow movement, although this damage Wound is acceptable in case of fire.But, in order to reduce this damage, applicant as far as possible Still such a travel switch, in mechanical push rods progradation, the leading actuating length of mechanism is opened Closing, the trip switch contact turns at once, directly allows contactor coil obtain electric, if now catalyst Coil is intact, main noddle on contactor by quick-make to electrically (prior to machinery mode) from And complete the startup of fire-fighting equipment.Import such as non-transformer or contactor coil fault then continues to advance Push rod can realize final fire-fighting machinery and open by force function.This scheme can really guarantee opening of motor The dynamic possibility occurred without electric arc, it is achieved reliably and securely startup truly.

Secondary wiring terminals small area analysis controls the adhesive of large current load catalyst, fire-fighting machinery Open by force and the coil of two catalysts is thrown on secondary wiring terminals be easy to housing external connection, and limit The battle of bit switch is thrown on secondary wiring terminals；The stroke of emergency machine handle can be touched Sending out limit switch, limit switch action one passive on-off model of output, when catalyst is complete During adhesive, the auxiliary contact of catalyst also can follow action one passive on-off model of output, In addition the coil of catalyst has been left on secondary wiring terminals the most in advance, makes fire-fighting machinery open by force dress Put and can adapt in various Machine Design.

Emergency machine handle 1.6: the initial source of mechanokinetic that fire-fighting machinery opens by force.

The reserved direct electric welding of action authority 1.7, lockhole 1.7.1: action authority, on shell, is allowed to Firmly not disconnecting, user can add concrete authority utensil according to the design of self.

Mechanical arm 1.8, mechanical spring 1.9, adjustable assister bar 2.2: the long-term free state of spring, Do not affect spring life.When fire-fighting machinery opens by force, energy storage all completes with release in push rod progradation, I.e. first energy storage discharges stored energy immediately, makes catalyst quick-make.

Limit switch 2.1: can trigger limit switch in the stroke of emergency machine handle, spacing leaves Pass action one passive on-off model of output, when the complete adhesive of catalyst, catalyst auxiliary Help contact also can follow action one passive on-off model of output.

The starter by force of the mechanical type for Firefighting Pump Control cabinet as shown in Figures 1 to 7, Including a base plate 1.4, base plate 1.4 is provided with a protection shell 1.3, on protection shell 1.3 Have sliding tray, sliding tray is provided with action authority barrier device 1.7, on the side of base plate 1.4 End is provided with primary connection terminal 1.1, is provided with secondary wiring terminals 1.5 in the lower end of this side, Catalyst 1.2 is installed between first and second binding post, catalyst 1.2 is provided with a machine Mechanical arm 1.8, is provided with mechanical spring 1.9 in mechanical arm 1.8, mechanical arm 1.8 is provided with one should Anxious mechanical handle 1.6.Mechanical spring 1.9 is in free state, pulls emergency machine handle 1.6, logical Crossing mechanical spring 1.9 and transfer power on mechanical arm 1.8, mechanical arm 1.8 is provided with one can Mode assister bar 2.2, makes mechanical arm 1.8 directly press by moving down of adjustable assister bar 2.2 On the main contact of catalyst 1.2, making catalyst obtain quickly machinery adhesive, fire-fighting machinery opens by force The assister bar on mechanical arm used changes adjustable assister bar into, it is ensured that contact is in purely mechanic effect Under can adhesive put in place, be greatly improved security performance, reduce because of under purely mechanic effect The arc phenomenon of catalyst adhesive generation not in place.

Include in place of the key of the present embodiment: in linkage, add limit switch, emergent The stroke of mechanical handle can trigger limit switch, limit switch action export one passive On-off model, when the complete adhesive of catalyst, it is defeated that the auxiliary contact of catalyst also can follow action Go out a passive on-off model, first outside the coil of catalyst be left to secondary connection the most in advance On terminal, the strong opening device of fire-fighting machinery is made to can adapt in various Machine Design.

1, the mechanical spring opening by force use of fire-fighting is at ordinary times for free state, energy storage when machinery opens by force All completing in push rod progradation with release, i.e. first energy storage discharges stored energy immediately, makes contact , there is not stretching for a long time in device quick-make or compression all can cause performance to reduce.

2, Redundant Control loop+mechanical energy storage mode of operation: i.e. in emergency machine handle progradation In, mechanism's leading action limit switch, this limit switch contact turns at once, thus closes standby Redundant Control loop, obtains electric as controlled loop (directly accessing from main busbar), can directly adhesive Catalyst, completes electrically activating.As non-transformer imports, then the push rod continuing to advance can realize Whole machinery opens by force function.This scheme can really guarantee the possibility that the startup of motor occurs without electric arc, Realize reliably and securely startup truly.

3, the mechanical mechanical arm opening by force use of fire-fighting changes adjustable mechanical arm into, and two ends change screw rod into and adjust Joint, it is ensured that contact can put in place under purely mechanic effect in adhesive, is greatly improved security performance, Reduce because of the arc phenomenon of catalyst adhesive generation not in place under purely mechanic effect.

4, the method for examination main noddle on contactor performance indications is to be mostly with the quick acting of electric magnet Premise, catalyst action is the fastest, and electric arc is the least to the injury of contact, if tightly by mechanical handle Action close or disconnect catalyst, contact can be caused to damage because of slow movement, although this Planting damage is acceptable in case of fire.But, in order to reduce this damage as far as possible, I Company devises such a limit switch, as the operator having permission from stop position to fortune When line position pulls, the first action of this limit switch, in the case of controlling loop paralysis, directly Allowing contactor coil obtain electric, if now contactor coil is intact, main noddle on contactor is by the side with electricity Formula quick-make (prior to the mode of machinery) thus completes the startup of fire-fighting equipment, if catalyst line Circle fault the most mechanically closes catalyst.

5, fire difficulty possible decades is met, exactly because fire probability is the least, and more should be long-term Taking effective measures in regular maintenance, servicing operations, reduce damage, once fire occurs, Can guarantee that the smooth enforcement of emergency starting.Company is made that huge effort, maximum limit in this respect The loss reducing life and property of degree.

The important technological parameters of the present embodiment:

Mounting means: in cabinet, formula is installed

Input parameter: input power AC380V

Output: adjustable according to concrete fire-fighting equipment

Output form: passive switch amount

Output capacity: 1A AC220V

Mode of operation: manual operation/manual operation+electrically adhesive

Ambient temperature :-20 DEG C～+55 DEG C

Ambient humidity: relative humidity≤95%

Height above sea level: ＜ 4500m

Degree of protection: IP30

Overall dimensions: adjustable according to concrete fire-fighting equipment

The construction features of the present embodiment product: 1, the strong opening device of the mechanical emergency of mechanically operable.2、 Action bars only moves to a direction, i.e. from open position to final run location.3, except fortune Other position beyond row locked position of coupler, if operator discharges manual emergency actuator, controller Open position should be able to be automatically returned to.4, mechanical spring energy storage starts, and energy storage type quick-make is machine The reliable selection that tool opens by force, is the guarantee of equipment safety in electrically activating running, and spring is long Phase free state, does not affect spring life.When machinery opens by force, energy storage is all advanced at push rod with release Completing in journey, i.e. first energy storage discharges stored energy immediately, makes catalyst quick-make.5, machinery is strong Open utilization or former control system main contactor, do not increase the added burden of equipment, once Major loop, without any change, reduces the possibility that electrical equipment failure occurs.6, emergency machine hands In handle progradation, mechanism's leading action limit switch, this limit switch contact turns at once, from And close standby redundancy and control loop, obtain electric as controlled loop (directly accessing from main busbar), Can direct adhesive catalyst, complete electrically activating.As non-transformer imports, then continue the push rod advanced Final machinery can be realized and open by force function.This scheme can really guarantee that the startup of motor is without electric arc The possibility occurred, it is achieved reliably and securely startup truly.

Fire-fighting mechanical emergency opens by force motion flow: when occurring that condition of a fire pressure switch, flow switch etc. are weak The signal of telecommunication and hand-drawn wire automatically start fire pump by relay, if weak electric signal is for some reason Barrier or relay fault can not automatic or manual start fire pump time, fire pump room should be relied on to arrange Mechanical emergency starter starts fire pump.When the control line failure in Fire Fighting Pump Control cabinet And when fire pump can not be made automatically to start, if the repairing carrying out getting rid of line fault immediately can be subject to Peopleware, temporal restriction, occur in emergency circumstances in fire-fighting, is ensureing life and wealth Producing our fire-fighting equipment of safety must unconditional behave, fire-fighting machinery at this time opens by force Necessity the most sufficiently embodied.When such situation occurs, the work having permission Personnel open authority lock and pull connecting rod to be that catalyst adhesive fire-fighting equipment starts, and danger is alleviated.

Certainly, this utility model can also have other various embodiments, without departing substantially from this utility model In the case of spirit and essence thereof, those of ordinary skill in the art can do according to this utility model Go out various corresponding change and deformation, but these change accordingly and deformation all should belong to this practicality newly Scope of the claims appended by type.

Claims (3)

1. for a mechanical type starter by force for Firefighting Pump Control cabinet, including a base plate, The upper end, side of described base plate is provided with primary connection terminal, is provided with secondary in the lower end of this side and connects Line terminals, is provided with catalyst between first and second binding post, it is characterised in that described One mechanical arm is installed on catalyst, mechanical spring is installed, on mechanical arm in described mechanical arm Being provided with an emergency machine handle, mechanical spring is in free state, pulls emergency machine handle, Transfer power on mechanical arm by mechanical spring, described mechanical arm is provided with one adjustable Assister bar, makes mechanical arm directly be pressed onto described contact by moving down of described adjustable assister bar On the main contact of device.

Mechanical type for Firefighting Pump Control cabinet the most according to claim 1 starts dress by force Put, it is characterised in that a protection shell is installed on described base plate, described protection shell is opened There is sliding tray.

Mechanical type for Firefighting Pump Control cabinet the most according to claim 2 starts dress by force Put, it is characterised in that action authority barrier device is installed on described sliding tray.