CN209233248U - A kind of block terminal for field tent hospital - Google Patents
A kind of block terminal for field tent hospital Download PDFInfo
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- CN209233248U CN209233248U CN201822135285.6U CN201822135285U CN209233248U CN 209233248 U CN209233248 U CN 209233248U CN 201822135285 U CN201822135285 U CN 201822135285U CN 209233248 U CN209233248 U CN 209233248U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a kind of block terminal for field tent hospital, belongs to field tent hospital power supply and distribution technical field, including three-phase input interface, three-phase output interface, second source master switch, single-phase output interface and illumination output interface.The phase sequence change-over switch being arranged in the power supply line that the utility model passes through block terminal and the ammeter being arranged in the power supply line of power supply transfer case are used cooperatively, and realize manually adjusting for three-phrase burden balance；By the way that pilot controller is arranged in block terminal, it is used cooperatively with the master controller being placed in power supply transfer case, realizes the automatic adjustment of three-phrase burden balance；It is designed by reasonable box structure, facilitates carrying and transport, and ensure the reliability of route using multiple technologies means, realized fast erecting power supply line, be convenient for fault location and maintenance, meet the flexible route requirement of the various tent hospitals such as centralization or distributing.
Description
Technical field
The utility model belongs to field tent hospital power supply and distribution technical field, and in particular to one kind is easy to transport, layout is clever
Block terminal that is living, can be realized three-phrase burden balance adjusting.
Background technique
Existing field tent hospital power supply-distribution system is generally integrated on a trailer, by way of ensureing trailer to
Medical treatment in each function tent illuminates, the power units power supply such as medical oxygen processed, medical water processed, air conditioner, each general guarantee
Trailer can ensure two top tents, its advantage is that receipts are concentrated, are unfolded and removed to function quickly, but complete for function, sweeping complete
For element field tent hospital, (1) improper airborne transport is had the disadvantage that, for the exhibition of total factor field tent hospital
It opens, it usually needs more guarantee trailers are just able to satisfy power supply and distribution requirement, and transport power is significantly increased, when especially road is by destroying,
Case group cannot be fully achieved, is unfavorable for field and quickly delivers；(2) existing trailer type power supply-distribution system does not have three-phase load
Easily there are the failures such as tripping, power-off in equilibrium function, and output interface is limited, is unsatisfactory for flexible topology and combined requirement, wiring
It is not flexible.
Utility model content
Purpose of the utility model is to solve the above problems, provide a kind of block terminal for field tent hospital,
The block terminal uses box structure, is easy to the various modes such as vehicle-mounted, airborne and transports, can be realized the balance adjustment of three-phase load,
Meet flexible topology, field tent hospital and combined requirement.
The above-mentioned purpose of the utility model is realized by following technical scheme:
A kind of block terminal for field tent hospital, it is single-phase for being converted to the three phase mains of power supply transfer case (2)
Power supply and direct current 24V power supply, comprising:
Three-phase input interface (48) is electrically connected with the three-phase output end (251) of power supply transfer case (2)；
Three-phase output interface (49) is directly led out from three-phase input interface (48)；
First battery main switch (412), is serially connected in the power supply line of block terminal；
Single-phase output interface (410), by three-phase input interface (48) through the first battery main switch (412), the second breaker
(413) it draws；
It illuminates output interface (414), by three-phase input interface (48) through the first battery main switch (412), the second breaker
(413), DC power converter is drawn.
The above-mentioned block terminal for field tent hospital further includes a phase sequence change-over switch (45), phase sequence change-over switch (45)
It is serially connected in the power supply line between the first battery main switch (412) and the second breaker (413).
In the above-mentioned block terminal for field tent hospital, the phase sequence change-over switch (45) has eight pairs of contacts, contact Q1,
The input terminal of Q3, Q5 and Q7 respectively in three-phase line A phase, B phase, C phase firewire and zero curve N be electrically connected, the output of contact Q8
End draw single-phase output interface (410) zero curve N, the output end of contact Q2, Q4, Q6 link together and with the second breaker
(413) input terminal electrical connection, the output end of contact Q1, Q3, Q5 and the input terminal of contact Q2, Q4, Q6 and contact Q7's is defeated
Actuation or disconnection between outlet and the input terminal of contact Q8 are controlled by the knob of phase sequence change-over switch (45).
The above-mentioned block terminal for field tent hospital further include:
First communication module (44), for being communicated with the second communication module (23) being placed in power supply transfer case (2)；
Pilot controller (41) for obtaining the power phase for each electrical equipment that block terminal is connected, and passes through first
Second communication module (23) and the master controller that is placed in power supply transfer case (2) of communication module (44), power supply transfer case (2)
(21) it communicates；
Any one of the three-phase power line of block terminal (4) alternating voltage is converted into direct current by Switching Power Supply (42)
It presses and is that pilot controller (41) provide power supply；
Contactor (43), control coil are respectively connected to the output end of pilot controller (41), KM1, KM2, KM3's
Contact is serially connected in three-phase power line respectively.
In the above-mentioned block terminal for field tent hospital, the block terminal (4) is box structure, box body (415) upper end
It is provided with a handle (416).
In the above-mentioned block terminal for field tent hospital, UPS is serially connected between the block terminal (4) and each electrical equipment
Uninterruptible power supply (5).
By adopting the above technical scheme, the technical effect of the utility model is:
(1) the utility model block terminal using box structure design, small volume and less weight, convenient for it is airborne transport, maintenance replacement and
Wiring；
(2) it is arranged in the power supply line of the phase sequence change-over switch being arranged in the power supply line of block terminal and power supply transfer case
Ammeter is used cooperatively, can be according to the three-phase load situation that ammeter is shown, by the phase sequence for manually adjusting corresponding block terminal
The phase sequence of the power supply line for the electrical equipment that change-over switch connects the block terminal changes, to realize the flat of three-phase load
Weighing apparatus；
(3) it by the way that pilot controller is arranged in block terminal, is used cooperatively with the master controller being placed in power supply transfer case,
Pilot controller detects the power phase of all electrical equipments connection of its connection, and by phase sequence information locating for each block terminal
Master controller is fed back to, master controller judges the distribution for needing to switch power supply line's phase sequence by comparing the size of three-phase current
Box, and control instruction is issued to pilot controller, it is most light that the block terminal of the most heavy power supply line of control load switches to load
Power supply line realizes on-line automatic adjusting three-phase load；
(4) it by concatenating a UPS uninterruptible power supply between block terminal and electrical equipment, is provided continuously for electrical equipment
Power supply, to guarantee going on smoothly for the emergency medicals such as first aid, operation.
Detailed description of the invention
Fig. 1 is the deployment schematic diagram of field tent hospital of the utility model based on centralized layout；
Fig. 2 is the deployment schematic diagram of field tent hospital of the utility model based on scattered distribution；
Fig. 3 is the schematic block circuit diagram of power supply transfer case；
Fig. 3 A is the circuit diagram of phase sequence module；
Fig. 4 is the front schematic view of power supply transfer case；
Fig. 5 is the schematic rear view of power supply transfer case；
Fig. 6 is the circuit diagram of power change-over switch；
Fig. 6 A is the appearance plan view of power change-over switch；
Structural schematic diagram when Fig. 7 is the closure of lighting distribution box；
Fig. 8 is the structural schematic diagram after lighting distribution box is opened；
Fig. 9 is the schematic block circuit diagram of block terminal；
Figure 10 is the structural schematic diagram after block terminal is opened；
Figure 11 is the circuit diagram of block terminal；
Figure 12 is the appearance plan view of phase sequence change-over switch；
Figure 13 is the schematic diagram of phase sequence change-over switch；
Figure 13 A is that phase sequence change-over switch converts the equivalent circuit schematic powered to A phase；
Figure 13 B is that phase sequence change-over switch converts the equivalent circuit schematic powered to B phase；
Figure 14 is the connection schematic diagram of uninterruptible power supply (UPS).
Figure 15 is the control principle drawing of three-phase load self-balancing；
Figure 16 is the control principle drawing of pilot controller；
Figure 17 is the working principle diagram that master controller and pilot controller use wire communication；
Figure 18 is the control flow chart of three-phase load self-balancing.
Main Reference label:
1- generating set；
2- power supply transfer case, 21- master controller, 22- current transducer, 23- second communication module, 24- input terminal, 241-
Three-phase input end, 242- single phase input, 243- ground stud；25- output end, 251- three-phase output end, 252- single-phase output end；
26- voltmeter, 27- ammeter, 28- power change-over switch, the first indicator light of 29-, 210- arrester, 211- lightning switch,
212- three-phase exports switching group, 213- second source master switch, the first breaker of 214-, 215- phase sequence module, 216- electricity
Cable disk, 217- bracket, 218- earth leakage protective power switch；
3- lighting distribution box, 31- emergency light, 32- tent headlamp, 33- cable, 34- electric power plug socket, 35- box main body,
36- case lid；
4- block terminal, 41- pilot controller, 42- Switching Power Supply, 43- contactor, 44- first communication module, 45- phase sequence
Change-over switch, the second indicator light of 46-, 47- ground terminal, 48- three-phase input interface, 49- three-phase output interface, 410- are single-phase defeated
Outgoing interface, 411- single-phase output switching group, the first battery main switch of 412-, the second breaker of 413-, 414- illuminate output interface；
415- box body, 416- handle；
5: uninterruptible power supply (UPS).
Specific embodiment
Smoothly carry out medical treatment work to ensure field tent hospital under the conditions of field, therefore, to assure that power supply system
Rapid deployment and normal operation, it is difficult (not exclusively to solve airborne transport existing for existing field tent hospital power supplying and distributing equipment
Case group formula structure), wiring not flexible, power grid three-phase imbalance the problems such as, the utility model provides a kind of cures for field tent
The block terminal of institute manually or automatically adjusts the phase sequence of the power supply line of block terminal, realizes the balance of three-phase load, pass through conjunction
Manage box structure design, convenient transportation, carrying and wiring；The block terminal ensures the reliable of power supply line using multiple technologies means
Property and stability, it can be achieved that fast erecting power supply line, be convenient for fault location and maintenance.
Below in conjunction with attached drawing and specific implementation example, the block terminal to the utility model for field tent hospital is carried out in detail
It describes in detail bright.
Field tent hospital be usually by command, examine wound classification, operation, first aid, inspection/pharmacy, ward, x-ray diagnose and
The functional modules such as medical technologies guarantee constitute, in field work, according to task execution site contour, condition and demand, can press
Centralized layout (referring to Fig. 1) or scattered distribution (referring to fig. 2) carry out deployment electric power safeguard system.As depicted in figs. 1 and 2, this reality
It is carried out the work with new distribution box 4 and matching used generating set 1, the cooperation of power supply transfer case 2, generating set 1 is according to total
Electricity demand power generation, and each electrical equipment is accessed through power supply transfer case 2, block terminal 4.
According to tent hospital electricity demand, generating set 1 can be single fighter, be also possible to multicomputer；Using multimachine
When group, independently-powered mode or grid-connected power supply mode can be used；The type selecting of generating set 1 is set by total electricity consumption of field tent hospital
The influence of standby power, storage and transportation mode, the factors such as layout type of field tent hospital, for example, in embodiment shown in FIG. 1, it is wild
Outer tent hospital is centralized layout, total electricity consumption about 82kW, and when actual job, not all equipment all in using simultaneously
State is usually calculated by the 80%~90% of its maximum electricity consumption, and required maximum power supply amount is not more than 75kW, 2 30kW tools
The generating set and 2 8.5kW portable power generation units of standby grid-connected function are assembled, and total power supply volume is 77kW.Generating set 1
There is provided at least one single-phase output power supply (usually providing single-phase output power supply by 8.5kW portable electric generator) and at least one three
Phase out-put supply, three-phase out-put supply generally provide 380V power supply, and single-phase output power supply generally provides 220 power supplies.
Power supply transfer case 2 is mainly used for the switching between the block terminal 4 in external power supply and each tent.Such as Fig. 3 to Fig. 6 institute
Show, power supply transfer case 2 includes that input terminal 24, power change-over switch 28, second source master switch 213, output end 25 and first are disconnected
Road device 214, in which:
Input terminal 24 includes three-phase input end 241 and single phase input 242, and way of realization can be standard plug, can also
To be the connector lug drawn, it is separately connected the three-phase out-put supply and single-phase output power supply of generating set 1, implementation shown in fig. 5
In example, three-phase input end 241 and single phase input 242 are socket type.
Power change-over switch 28 is serially connected between input terminal 24 and second source master switch 213, single phase input 242 and three
Phase input terminal 241 is connected to power change-over switch 28, and power change-over switch 28 is used in single phase input 242 and three-phase input
It is switched between end 241, for different applications, is switched freely between three-phase and single phase poaer supply, eliminated
Frequent patching operations, while avoiding malfunctioning.The circuit diagram of power change-over switch 28 is referring to Fig. 6, power change-over switch 28
The mode bit of conversion process is specific as follows referring to table 1:
As shown in Figure 6A, when the rotation of power change-over switch 28 to 0 ° (knob is in vertical direction), power supply line is in
Off-state, at this point, S1 is in off-state to the contact S16；When extremely -60 ° of the rotation of power change-over switch 28, power supply line
Three phase mains power supply is switched to, at this point, S1 is in attracting state to the contact S8, S9 to the contact S16 is in an off state；Work as power supply
When switching the rotation of switch 28 to 60 °, power supply line switches to single phase poaer supply and powers, at this point, S1 is in an off state to the contact S8,
S9 is in attracting state to the contact S16.
Each mode bit of power change-over switch in 1 power supply transfer case of table
| Contact | - 60 ° (three-phase) | 0 ° (disconnected) | 60 ° (single-phase) |
| S1——S2 | It is logical | It disconnects | It disconnects |
| S3——S4 | It is logical | It disconnects | It disconnects |
| S5——S6 | It is logical | It disconnects | It disconnects |
| S7——S8 | It is logical | It disconnects | It disconnects |
| S9——S10 | It disconnects | It disconnects | It is logical |
| S11——S12 | It disconnects | It disconnects | It is logical |
| S13——S14 | It disconnects | It disconnects | It is logical |
| S15——S16 | It disconnects | It disconnects | It is logical |
As shown in figure 3, output end 25 includes three-phase output end 251 and single-phase output end 252, three-phase output end 251 is by electricity
The output end that source switches switch 28 is drawn through second source master switch 213, the first breaker 214, and single-phase output end 252 is by power supply
The output end for switching switch 28 is drawn through second source master switch 213.
Second source master switch 213 is serially connected in power supply line, has short circuit and overload protection function；Second source is always opened
It closes in the power supply line between 213 and output end 25 and is also serially connected with earth leakage protective power switch 218, mainly play earth leakage protective function
Can, it will disconnect power supply, protection staff safety when route or equipment leakage；Second source master switch 213, earth leakage protective power supply are opened
Access has voltmeter 26, ammeter 27 and the first indicator light 29 on route between pass 218 and the first breaker 214, and first refers to
Show that lamp 29 is used to indicate the working condition of A, B, C three-phase circuit, voltmeter 26 and ammeter 27 are three-phase kilowatt-hour meter, can be surveyed in real time
It measures three phase electrical parameters (voltage or current values), voltmeter 26 is directly accessed three-phase circuit, and ammeter 27 is accessed by mutual inductor
Three-phase circuit, and it is converted into the low current signal value of 4~20mA or the small voltage signal value of 0~5V, it feeds back in ammeter 27
It is handled, calculated A phase, B phase and C phase current values are shown in ammeter LED to be shown on window.
The single phase input 242 and three-phase input end 241 of power supply transfer case 2 are provided with arrester 210, arrester 210
It is connected between uniline or three-phase line and ground wire, avoids route or electrical equipment by lightning surge and operated
Voltage damages.First breaker 214 is embedded with overcurrent/mistake die block, plays short circuit, overcurrent, over-voltage protecting function, and control is each respectively
The on/off of power supply branch protects the electrical equipment of each branch access.
Three-phase input end 241 is additionally provided with phase sequence module 215, and phase sequence module 215 accesses in three-phase line, when
When phase sequence and specified phase sequence are not inconsistent in route, phase sequence relay powers trigger action, line disconnection, on protection circuit and route
Electrical equipment.Fig. 3 A is the circuit diagram of phase sequence module 215, and as shown in Figure 3A, phase sequence module 215 includes phase
Sequence protective relay KA1, Phase-sequence Fault combined aural and visual alarm HL4, contactor KM4 and insurance FU2, it is two portions that contactor KM4, which is divided to,
Point, a part is KM4 control coil, is connected to phase sequence protective relay KA1 output end OUT1, another part by insuring FU2
For the contact KM4, the i.e. contact P1-P2, the contact P3-P4 and the contact P5-P6, it is serially connected in three-phase line respectively.
When the three-phase input phase sequence of power supply transfer case 2 is correct, the output end OUT1 of phase sequence protective relay KA1 exports electricity
The control coil both ends of pressure, contactor KM4 are powered, so that the contact P1-P2 of contactor KM4, the contact P3-P4 and the contact P5-P6
It is attracted, power supply transfer case 2 meets the three-phase electricity that phase sequence requires to the output of each three-phase electrical equipment；When the three-phase of power supply transfer case 2
When input phase sequence is incorrect, the output end OUT3 output voltage of phase sequence protective relay KA1, Phase-sequence Fault combined aural and visual alarm HL4
It is powered and issues sound-light alarm information, remind staff to adjust the phase sequence of three-phase input end, at this point, phase sequence protective relay KA1
Output end OUT1 not output voltage, the control coil no power of contactor KM4, then the P1-P6 of contactor KM4 is not attracted, electricity
Transfer box 2 route in source disconnects.
Referring to fig. 4 and Fig. 5, in the embodiment, power supply transfer case 2 is body structure to the specific structure of power supply transfer case 2,
The rotation of the display screen and power change-over switch 28 of the first indicator light 29, voltmeter 26 and ammeter 27 is disposed on front panel
Button, in the embodiment, the first indicator light 29 includes the indicator light and Phase-sequence Fault indicator light of A phase, B phase, C phase three phase mains；Electricity
The box house of source transfer box 2 is provided with bracket 217 and the rotatable cable reel 216 being installed on bracket 217, bracket
217 be detachable structure, can be fixed by a clamping mechanism, and fast erecting mains supply line is convenient for.Behind power supply transfer case 2
Three-phase input end (380V) 241, single phase input (220V) 242, ground stud 243, three-phase output end (380V) are arranged on plate
251, single-phase output end (220V) 252, three-phase output switching group 212, arrester 210, lightning switch 211 and second source are always opened
Close 213.Preferably, chamber door that can be hinged with cabinet is provided at the front panel and rear panel of power supply transfer case 2, chamber door fastens
Or front panel and rear panel can be sealed in cabinet after locking.
Fig. 7 and Fig. 8 is the structure chart of lighting distribution box 3.As shown in Figure 7 and Figure 8, lighting distribution box 3 includes box main body 35
With case lid 36, case lid 36 and box main body 35 are hinged, and case lid 36 can be overturn along hinged place, and box main body 35 is the cabinet of upper opening,
It is internally provided with buffering lining (vibration damping sponge is made of polyurethane or polyethylene padded coaming) made of vibration damping sponge, is delayed
It rushes lining and is provided with multiple grooves, be respectively used to accommodating emergency light 31, tent headlamp 32, cable 33, electric power plug socket 34, ground connection
Stake 243 and block terminal 4, case lid 36 are covered on the opening of box main body 35, easy to carry and protect each component during transportation
It is not damaged.
The three phase mains of power supply transfer case 2 is converted to single phase poaer supply and 24V power supply by block terminal 4, supplies power in tent
Lesser electrical equipment uses, and electrical equipment biggish for power directly can carry out electric power switching from power supply transfer case 2.Such as
(it is as shown in table 2 respectively to meet representative component and label in Figure 11) shown in Fig. 9 to Figure 11, block terminal 4 connects including three-phase input
Mouth 48, three-phase output interface 49, second source master switch (band earth leakage protective) 412, second breaker 413, illumination output interface
414, single-phase output interface 410, the second indicator light 46 and phase sequence change-over switch 45, in which:
Three-phase input interface 48 is electrically connected with the three-phase output end 251 of power supply transfer case 2, can pass through tent intraoral illumination distribution
The input terminal aviation plug of cable 33 in case 3 and the three-phase output end aviation socket of power supply transfer case 2 are connected by inserting mode fastly
It connects, the output end aviation socket of cable 33 and the input terminal aviation plug of the three-phase input interface 48 of block terminal 4 in tent pass through
Slotting mode connects fastly.Three-phase output interface 49 is directly drawn from three-phase input interface 48, for giving power biggish electrical equipment
Power supply.
First battery main switch 412 is serially connected in the power supply line of block terminal, controls the logical of the power supply line of block terminal 4
It is disconnected.Three-phase input interface 48 draws multiple single-phase output interfaces 410 through the first battery main switch 412, the second breaker 413, and three
Phase input interface 48 is drawn illumination output through the first battery main switch 412, the second breaker 413 and DC power converter G1 and is connect
Mouth 414, the second breaker 413 has the function of short-circuit protection, overload protection.
The table of comparisons of 2 circuit symbol of table and component names, label
Phase sequence change-over switch 45, phase sequence change-over switch 45 are concatenated between second breaker 413 and the first battery main switch 412
The electrical equipment that single-phase output interface 410 and illumination output interface 414 are connected can be converted to A phase, B phase or C phase, pass through tune
The load for saving three phase mains, facilitates three-phrase burden balance.The circuit diagram of phase sequence change-over switch 45 turns referring to Figure 13, phase sequence
The mode bit of 45 conversion process of switch is changed referring to table 3, specific as follows:
Dotted portion is the inner contact structure of phase sequence change-over switch (SA1) 45 in Figure 13, shares eight pairs of contacts, contact
The input terminal of Q1, Q3, Q5 and Q7 respectively in three-phase line A phase, B phase, C phase firewire and zero curve N be electrically connected, contact Q8's is defeated
Outlet draw single-phase output interface 410 zero curve N, the output end of contact Q2, Q4, Q6 link together and with the second breaker
413 input terminal electrical connection, between the output end of contact Q1, Q3, Q5 and the input terminal of contact Q2, Q4, Q6 and the Q7 of contact
Actuation or disconnection between output end and the input terminal of contact Q8 are controlled by the knob of phase sequence change-over switch 45.
Each mode bit of phase sequence change-over switch is referring to table 3.As shown in figure 12, when phase sequence change-over switch 45 is rotated to 0 ° of (knob
Top in vertical direction) when, power supply line is in an off state, at this point, Q1 is in off-state to the contact Q8；Work as phase
At extremely -90 ° of the rotation of sequence change-over switch 45, power supply line is that the power supply that electrical equipment provides is by A phase firewire, zero curve N and ground wire
The single-phase voltage (220V, 50Hz) of composition, at this point, the contact Q1-Q2 and the contact Q7-Q8 are in attracting state, the contact Q3-Q4 and
The contact Q5-Q6 is in off-state (referring to Figure 13 A)；When the rotation of phase sequence change-over switch 45 is to 90 °, power supply line is electrical
The power supply that equipment provides is the single-phase voltage (220V, 50Hz) being made of B phase firewire, zero curve N and ground wire, at this point, the contact Q3-Q4
It is in attracting state with the contact Q7-Q8, the contact Q1-Q2 and the contact Q5-Q6 are in off-state (referring to Figure 13 B)；Similarly,
When the rotation of phase sequence change-over switch 45 is to 180 °, power supply line be the power supply that electrical equipment provides be by C phase firewire, zero curve N and
The single-phase voltage (220V, 50Hz) that ground wire is constituted, at this point, the contact Q5-Q6 and the contact Q7-Q8 are in attracting state, Q1-Q2 touching
Point and the contact Q3-Q4 are in off-state.
3 each mode bit of phase sequence change-over switch of table
The second indicator light is additionally provided in power supply line between first battery main switch 412 and phase sequence change-over switch 45
46, it is used to refer to the power supply state of A phase in power supply line, B phase and C phase three-phase line.
As shown in Figure 10, be disposed on the front panel of block terminal 4 second indicator light 46, phase sequence change-over switch 45 knob,
First battery main switch 412, single-phase output switching group 411, single-phase output interface 410, three-phase input interface 48, three-phase output connect
Mouth 49 and the second earthing rod 47, single-phase output switching group 411 are three single-phase outputs switches and a light switch, each switch
Independently it can close a floodgate and disconnect, 415 side of box body of block terminal 4 is also disposed with three-phase or single-phase output socket, extends as more as possible
Output interface.Block terminal 4 is box like structure, and 415 upper end of box body of block terminal 4 is provided with a handle 416, and one is easy for removing
Fortune, second is that can hang on the hook of tent by handle 416, is easily installed wiring.
First aid in field tent hospital, the emergency operation occasion in operating tent, need to guarantee continuous power supply, with
Guarantee going on smoothly (referring to Fig. 1) for the emergency medicals such as first aid, operation.The utility model is between block terminal 4 and electrical equipment
A UPS uninterruptible power supply 5 is concatenated, referring specifically to Figure 14.
There are two types of structure type, operating modes to be respectively as follows: for UPS uninterruptible power supply 5
The first operating mode: the electric power of the output end of block terminal 4 supplies after UPS internal battery inversion to electrical equipment
The output end of electricity, block terminal 4 charges as after power rectifier to battery；
Second of operating mode: being equipped with control circuit inside UPS, can monitor external power supply power supply, when monitoring external confession
When power supply normal power supply, UPS control circuit issues control command, directly from external power supply power supply to power electrical apparatus；When
When external power supply power supply powers off suddenly, UPS control circuit issues control command, is switched to after internal battery inversion immediately to electricity
The operating mode of gas equipment power supply, switching time is usually ms grades, does not influence the emergency medicals such as operation, first aid.
The utility model block terminal 4 can pass through the line of manual adjustment block terminal 4 by being used cooperatively with electronic box transfer box 2
The phase sequence on road realizes the three-phrase burden balance of the electric power safeguard system of field tent hospital, specifically includes the following steps:
Step 1, the display numerical value of the ammeter 27 by observing power supply transfer case 2, judges whether three-phase load balances,
I.e. whether the difference of the current values of A phase, B phase and C Xiang Zhongren two-phase is more than setting value, if it is determined that it is uneven, then go to step
Rapid two, otherwise repeatedly step 1, until the power supply of field tent hospital terminates.
Step 2 observes the position on the block terminal 4 that the power supply transfer case 2 is connected where the knob of phase sequence change-over switch 45
It sets, the phase sequence of power supply used in the electrical equipment of the tent where the block terminal 4 is judged, if the electricity that the block terminal 4 is connected
Power supply used in gas equipment is under the most heavy phase sequence state of load, then rotates the knob of phase sequence change-over switch 45, by the rotation
It goes under the most light phase sequence state of load, return step one；Otherwise, the phase sequence state of next block terminal 4 is observed, step is repeated
Two other operations.
Above-mentioned regulation scheme advantage is, under the conditions of field, manual mode realizes equipment simplification, lightweight, and can
To notify the tent where block terminal 4 adjusted by manual intervention, stop crucial surgical work, selection when adjusting
Suitable opportunity avoids influence of the conversion phase sequence bring electric source disturbance to electrical equipment；Its shortcoming is that the program is main
Artificial experience and judgement are relied on, large labor intensity is adjusted not in time.
In order to reduce labor intensity, saves labour turnover, Automatic adjustment method can be used, the realization of this method needs to increase
Add matched hardware, i.e., as shown in Figure 15 and Figure 16, master controller 21, current transducer 22 and are added in power supply transfer case 2
Two communication modules 23 add pilot controller 41, Switching Power Supply 42, contactor 43 and first communication module 44 in block terminal 4, electricity
Flow transmitter 22 is used to detect each phase current of the three-phase out-put supply 11 of generating set 1, and its current parameters is converted to
4mA-20mA signal is exported to master controller 21, and Switching Power Supply 42 exchanges phase any in the three-phase input interface 48 of block terminal 4
220V voltage is converted into 24V or 12V DC voltage and provides power supply, the output end point of pilot controller 41 for pilot controller 41
It is not connected to the control coil of contactor 43, respectively to control the contact KM1 in three-phase power line, the contact KM2 and KM3 touching
Point, pilot controller 41 are communicated by first communication module 44, second communication module 23 with master controller 21.
Pilot controller 41 detects power phase used in all electrical equipments of its connection, and by each 4 institute of block terminal
The phase sequence information at place feeds back to master controller 21, and master controller 21 judges to need to switch to supply by comparing the size of three-phase current
The block terminal 4 of electric line phase sequence, and control instruction is issued to pilot controller 41, by 41 control contactor 43 of pilot controller,
Block terminal in the most heavy power supply line of load is switched into the most light power supply line of load；Second communication module 23 and first
Communication mode between communication module 44 can be wired communication mode, wireless short range communication mode or power carrier mode, nothing
WLAN WLAN technology, bluetooth (Bluetooth) technology, ZigBee technology, short distance can be used in line short range communication mode
NFC, Wifi technology of wireless transmission etc..
By taking wire communication as an example, the cable modem of the pilot controller 41 of the master controller 21 and block terminal 4 of power supply transfer case 2
Circuit diagram is believed referring to Figure 17, and in the embodiment, using two power supply transfer casees 2, each power supply transfer case 2 provides eight tunnels three
The output of phase power supply, can connect with the block terminal 4 in eight tents；Master controller 21 passes through four block terminal channel selecting codes
(binary code) selects any block terminal in 16 block terminals 4, and pilot controller 41 passes through two block terminals selections
Code (binary code) selects " not powering ", A phase, B phase or C phase power supply line.As shown in Figure 16 and Figure 17, work as master controller
21 delivery outlet code is " 0010 ", when the delivery outlet code of pilot controller 41 is " 11 ", the pilot controller of 3# block terminal
41 response main controllers 21 instruct, and issue control command to C phase contact KM3, are attracted its contact, and A phase contact KM1 and B
Phase contact KM2 is not received by control command, is not attracted, and is in an off state, at this point, 3# block terminal is powered by C phase.
It is configured using hardware above, on-line automatic adjusting three-phase load may be implemented, as shown in figure 18, including following step
It is rapid:
Step 1, master controller 21 receive the three-phase current information that current transducer 22 is fed back, and compare and appoint between two-phase
Current differential, when A phase, B phase and C Xiang Zhongren two-phase current differential be more than setting value, judge imbalance, go to step 2, it is no
Step 1 is then repeated, until the power supply of field tent hospital terminates.
Step 2, the power supply line's phase sequence according to locating for block terminal 4 in each tent of master controller 21 judge automatically required tune
Whole block terminal, it is then auxiliary into the required block terminal 4 for adjusting phase sequence by second communication module 23, first communication module 44
Controller 41 is helped to issue the instruction (powering for example, being powered to convert to B phase by A phase) of adjustment power supply line, by pilot controller 41
The contact of control contactor 43 acts, and the power supply line of the block terminal 4 in the most heavy phase sequence state of load is adjusted to load
Most light phase sequence state, return step one.
Although the method for above-mentioned on-line automatic adjustment three-phase load can reduce labor intensity, save labour turnover, adjust
In time, for the occasion that cannot have a power failure during the emergency medicals such as first aid, operation treatment, though it is equipped with ups power, for prevention
Situations such as ups power battery malfunction, is set yet by the program of master controller 21, will be in the tents such as first aid, operation
The electrical equipment that block terminal 4 is powered excludes except adjust automatically range.
The utility model manually or automatically adjusts the phase sequence of the power supply line of the block terminal 4 in each tent, realizes three
The balance of phase load is designed by reasonable box structure, facilitates carrying, carrying, transport and wiring；Block terminal 4 uses a variety of skills
Art means ensure that the reliability and stability of power supply line, it can be achieved that fast erecting power supply line, are convenient for fault location and maintenance,
Suitable for centralization or distributing field tent hospital.
It will be appreciated by those skilled in the art that these embodiments or embodiment are merely to illustrate the utility model and unlimited
The scope of the utility model processed, the various equivalent variations and modification made to the utility model belong in the utility model discloses
Hold.
Claims (6)
1. a kind of block terminal for field tent hospital, for the three phase mains of power supply transfer case (2) to be converted to single-phase electricity
Source and direct current 24V power supply characterized by comprising
Three-phase input interface (48) is electrically connected with the three-phase output end (251) of power supply transfer case (2)；
Three-phase output interface (49) is directly led out from three-phase input interface (48)；
First battery main switch (412), is serially connected in the power supply line of block terminal；
Single-phase output interface (410), by three-phase input interface (48) through the first battery main switch (412), the second breaker (413)
It draws；
It illuminates output interface (414), by three-phase input interface (48) through the first battery main switch (412), the second breaker
(413), DC power converter is drawn.
2. the block terminal according to claim 1 for field tent hospital, which is characterized in that further include phase sequence conversion
It switchs (45), phase sequence change-over switch (45) is serially connected with the power supply between the first battery main switch (412) and the second breaker (413)
In route.
3. the block terminal according to claim 2 for field tent hospital, which is characterized in that the phase sequence change-over switch
(45) have eight pairs of contacts, the input terminal of contact Q1, Q3, Q5 and Q7 respectively with the A phase, B phase, C phase firewire and zero in three-phase line
Line N electrical connection, the output end of contact Q8 draw the zero curve N of single-phase output interface (410), the output end connection of contact Q2, Q4, Q6
It is electrically connected together and with the input terminal of the second breaker (413), output end and contact Q2, Q4, Q6 of contact Q1, Q3, Q5
Actuation or disconnection between the input terminal of the output end and contact Q8 of input terminal and contact Q7 pass through phase sequence change-over switch (45)
Knob control.
4. the block terminal according to claim 1 for field tent hospital, which is characterized in that further include:
First communication module (44), for being communicated with the second communication module (23) being placed in power supply transfer case (2)；
Pilot controller (41) for obtaining the power phase for each electrical equipment that block terminal is connected, and passes through the first communication
Module (44), the second communication module (23) of power supply transfer case (2) and the master controller (21) that is placed in power supply transfer case (2) are logical
Letter；
Any one of the three-phase power line of block terminal (4) alternating voltage is converted into DC voltage simultaneously by Switching Power Supply (42)
Power supply is provided for pilot controller (41)；
Contactor (43), control coil are respectively connected to the output end of pilot controller (41), the contact of KM1, KM2, KM3
It is serially connected in three-phase power line respectively.
5. the block terminal according to any one of claims 1 to 4 for field tent hospital, which is characterized in that described to match
Electric box (4) is box structure, and box body (415) upper end is provided with a handle (416).
6. the block terminal according to any one of claims 1 to 4 for field tent hospital, which is characterized in that described to match
UPS uninterruptible power supply (5) are serially connected between electric box (4) and each electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135285.6U CN209233248U (en) | 2018-12-19 | 2018-12-19 | A kind of block terminal for field tent hospital |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135285.6U CN209233248U (en) | 2018-12-19 | 2018-12-19 | A kind of block terminal for field tent hospital |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209233248U true CN209233248U (en) | 2019-08-09 |
Family
ID=67508286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822135285.6U Expired - Fee Related CN209233248U (en) | 2018-12-19 | 2018-12-19 | A kind of block terminal for field tent hospital |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209233248U (en) |
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2018
- 2018-12-19 CN CN201822135285.6U patent/CN209233248U/en not_active Expired - Fee Related
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