CN203326946U

CN203326946U - Dual-operation system of fan power-saving cabinet

Info

Publication number: CN203326946U
Application number: CN2013202423463U
Authority: CN
Inventors: 马玉清
Original assignee: YANTAI SHUANGYI ENERGY-SAVING EQUIPMENT Co Ltd
Current assignee: YANTAI SHUANGYI ENERGY-SAVING EQUIPMENT Co Ltd
Priority date: 2013-05-07
Filing date: 2013-05-07
Publication date: 2013-12-04
Anticipated expiration: 2023-05-07

Abstract

The utility model relates to a dual-operation system of a fan power-saving cabinet, and the system comprises a main circuit system and a control circuit system. The input end of the control circuit system is connected with the main circuit system. The main circuit system comprises a main circuit breaker QF, a contactor switch KMA, a contactor switch KMB, a contactor switch KMC, an input filter LBI, an output filter LBO, and a frequency converter VF. The control circuit system comprises a 220V control circuit system, a 380V control circuit system, and a cooling fan control system. During initial design of the fan power-saving cabinet, margin is designed, and redundant electric quantity is saved after production decreases, so as to achieve an energy-saving purpose. The starting mode of a fan is changed into a mode of variable frequency starting, and the fan can operate under a condition of low frequency, and air quantity can be adjusted reasonably, so as to achieve the energy-saving purpose. Operation efficiency of equipment is improved, and a power factor is raised to a level higher than a national standard. The range of a power-saving rate of the fan power-saving cabinet is from 20% to 50% under the condition that production is completely met.

Description

The two operational systems of a kind of blower fan electricity-saving cabinet

Technical field

The utility model relates to the two operational systems of a kind of blower fan electricity-saving cabinet, belongs to the energy-conserving and environment-protective field.

Background technology

Fan Devices commonly used is when initial designs in the market, and the specification of selection model just is greater than the 10%-15% of required specification, has caused the waste of the energy; Equipment is in the situation that output descends, and Air Quantity Required also can reduce, and has caused so again larger waste; The fan starting mode is roughly two kinds, and one is that Y-△ starts, and two be soft start, and due to the cost of soft start, far away higher than the startup of Y-△, a lot of producers consider that cost-saving aspect, directly with original Y-△ startup, causes the waste in start-up and operation; Operational efficiency is low, and power factor is far below national standard.

The utility model content

The deficiency that the utility model exists for prior art, provide a kind of blower fan electricity-saving cabinet energy-conservation, economize on electricity two operational systems.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

The two operational systems of a kind of blower fan electricity-saving cabinet, comprise main circuit system and control circuit system, and the input of described control circuit system is connected with described main circuit system, it is characterized in that:

Described main circuit system comprises main circuit breaker QF, contactless contactor KMA, contactless contactor KMB, contactless contactor KMC, input filter LBI, output filter LBO and frequency converter VF, described main circuit breaker QF mono-end is connected with power end, the other end and contactless contactor KMA, contactless contactor KMB and control circuit system input connect, the other end of described contactless contactor KMA is connected with input filter LBI, described frequency converter VF input is connected with input filter LBI, frequency converter VF output is connected with output filter LBO, the output of described output filter LBO is connected with the blower fan electricity-saving cabinet by contactless contactor KMC, described contactless contactor KMB directly is connected with the blower fan electricity-saving cabinet,

Described control circuit system comprises 220V control circuit system, 380V control circuit system and radiator fan control system, the power supply of described control circuit system causes three-phase power line the miniature circuit breaker QF1 of control circuit system by the main circuit breaker QF output of main circuit system, draw two-way two-phase 380V circuit Xian He mono-road three-phase 380V circuit line by miniature circuit breaker QF1, one tunnel two-phase 380V circuit line is delivered to 380V control circuit system, another road two-phase 380V circuit line through transformer T transformation to 220V, be delivered to 220V control circuit system by a small circuit switch S1, described radiator fan control system is connected with described miniature circuit breaker QF1 by K switch 1.

Further, described 220V control circuit system is provided with ship type switch S, described ship type switch S input is connected with small circuit switch S1, described ship type switch S is totally two outputs, the first output is connected with city's electric control system, the second output is connected with electricity-saving control system, and described city electric control system is provided with relay K A1, contactor KM1, relay K A8, described contactor KM1, relay K A8 parallel connection; Described electricity-saving control system is provided with time relay KT, relay K A2, contactor KM2; the function contact TC output of described frequency converter VF is connected with relay K A7, and the function contact RC output of described frequency converter VF is connected with relay K A3 and contactor KM3; Described 380V control circuit system comprises contactor KM2.1, contactor KM2.2 and contactor KM2.3.

Further, be connected to a Y-△ starting switch S2 and the ship type switch S 3 that can reset on the function contact of described frequency converter VF, two end points of described Y-△ starting switch S2 are connected with FWD and the COM point of the function contact of described frequency converter VF respectively, described ship type switch S 3 one ends that reset are connected with the COM point of the function contact of described frequency converter VF, the other end is connected with DI2 point or the DI3 point of the function contact of described frequency converter VF, can common point be connected respectively with another two ends by push switch, regulate the frequency of frequency converter VF.

Further, described Y-△ starting switch S2 is provided with contactor KM11, relay K A9.

Further, described city electric control system is provided with indicator light H1, and described electricity-saving control system is provided with indicator light H2, and the function contact output of described frequency converter VF is provided with a running indicator H3.

Further, described control circuit system is provided with a rotation emergency stop switch HA and buzzer.

Further, on described 380V control circuit system, ammeter PA and the voltmeter PV for observing electric current, voltage is housed.

Further, be connected with one on the function contact of described frequency converter VF for measuring the anemobiagraph of wind speed.

The beneficial effects of the utility model are: blower fan electricity-saving cabinet described in the utility model design margin and under unnecessary electric weight is saved after output descends when initial designs, play energy-conservation purpose; The fan starting mode changes variable frequency starting into, can also under low frequency, move, and rationally regulates air quantity, plays energy-conservation purpose; Improve equipment operating efficiency low, more than power factor is brought up to national standard; The blower fan electricity-saving cabinet is meeting power saving rate under production status fully at 20%-50%.

The accompanying drawing explanation

The circuit diagram that Fig. 1 is main circuit system of the present utility model;

The circuit diagram that Fig. 2 is the utility model control circuit system;

The circuit diagram that Fig. 3 is the utility model 380V control circuit system;

The connection circuit figure of the function contact that Fig. 4 is the utility model frequency converter VF and frequency adjustment switch and Y-△ starting switch S2.

Embodiment

Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.

Described 220V control circuit system is provided with ship type switch S, described ship type switch S input is connected with small circuit switch S1, described ship type switch S is totally two outputs, the first output is connected with city's electric control system, the second output is connected with electricity-saving control system, described city electric control system is provided with relay K A1, contactor KM1, relay K A8, described contactor KM1, relay K A8 parallel connection; Described electricity-saving control system is provided with time relay KT, relay K A2, contactor KM2; the function contact TC output of described frequency converter VF is connected with relay K A7, and the function contact RC output of described frequency converter VF is connected with relay K A3 and contactor KM3; Described 380V control circuit system comprises contactor KM2.1, contactor KM2.2 and contactor KM2.3.

Be connected to a Y-△ starting switch S2 and the ship type switch S 3 that can reset on the function contact of described frequency converter VF, two end points of described Y-△ starting switch S2 are connected with FWD and the COM point of the function contact of described frequency converter VF respectively, described ship type switch S 3 one ends that reset are connected with the COM point of the function contact of described frequency converter VF, the other end is connected with DI2 point or the DI3 point of the function contact of described frequency converter VF, can common point be connected respectively with another two ends by push switch, regulate the frequency of frequency converter VF.

Described Y-△ starting switch S2 is provided with contactor KM11, relay K A9.

Described city electric control system is provided with indicator light H1, and described electricity-saving control system is provided with indicator light H2, and the function contact output of described frequency converter VF is provided with a running indicator H3.

Described control circuit system is provided with a rotation emergency stop switch HA and buzzer.

Ammeter PA and voltmeter PV for observing electric current, voltage is housed on described 380V control circuit system.

Be connected with one on the function contact of described frequency converter VF for measuring the anemobiagraph of wind speed.

Implementation process of the present utility model is as follows:

When ship type switch is selected civil power, the adhesive of miniature relay KA1 coil, H1 is bright for the civil power indicator light, contactor KM1 coil and the adhesive of relay K A8 coil, the adhesive of contactor KM2.1 coil, now equipment civil power operation, the same with original equipment control, electricity-saving cabinet is equivalent to wire.

When ship type switch S is selected economize on electricity, time relay KT switches on after the time delay of setting, miniature relay KA2 coil and the adhesive of contactor KM2 coil, the indicator light H2 that simultaneously economizes on electricity is lit, the adhesive of contactor KM2.2 coil, the adhesive of contactor KM2.3 coil, now equipment moves with battery saving mode, by ship type switch S, the running frequency of blower fan is regulated, until the desirable running status of equipment, at electricity-saving state, pass through the function contact RA/RC conducting of frequency converter VF after the equipment operation, running indicator H3 is lighted, relay K A3 coil and the adhesive of contactor KM3 coil, the operation of cabinet radiator fan, after equipment fault or pressing rotation emergency stop switch HA, the adhesive of relay K A7 coil, make run end-point FWD and COM path disconnect, play protection equipment, FWD and the contactor normally opened contact that is connected in series former △ starting switch S2 in COM, to guarantee frequency conversion just operation after Y-△ starting switch S2 has started, make equipment safety and stability more.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. the two operational systems of blower fan electricity-saving cabinet, comprise main circuit system and control circuit system, and the input of described control circuit system is connected with described main circuit system, it is characterized in that:

2. two operational systems of a kind of blower fan electricity-saving cabinet according to claim 1, it is characterized in that, described 220V control circuit system is provided with ship type switch S, described ship type switch S input is connected with small circuit switch S1, described ship type switch S is totally two outputs, the first output is connected with city's electric control system, the second output is connected with electricity-saving control system, described city electric control system is provided with relay K A1, contactor KM1, relay K A8, described contactor KM1, relay K A8 parallel connection; Described electricity-saving control system is provided with time relay KT, relay K A2, contactor KM2; the function contact TC output of described frequency converter VF is connected with relay K A7, and the function contact RC output of described frequency converter VF is connected with relay K A3 and contactor KM3; Described 380V control circuit system comprises contactor KM2.1, contactor KM2.2 and contactor KM2.3.

3. two operational systems of a kind of blower fan electricity-saving cabinet according to claim 2, it is characterized in that, be connected to a Y-Δ starting switch S2 and the ship type switch S 3 that can reset on described frequency converter VF, two end points of described Y-Δ starting switch S2 are connected with FWD and the COM point of the function contact of described frequency converter VF respectively, described ship type switch S 3 one ends that reset are connected with the COM point of the function contact of described frequency converter VF, the other end is connected with DI2 point or the DI3 point of the function contact of described frequency converter VF, can common point be connected respectively with another two ends by push switch, regulate the frequency of frequency converter VF.

4. the two operational systems of a kind of blower fan electricity-saving cabinet according to claim 3, is characterized in that, described Y-Δ starting switch S2 is provided with contactor KM11, relay K A9.

5. two operational systems of a kind of blower fan electricity-saving cabinet according to claim 4, it is characterized in that, described city electric control system is provided with indicator light H1, and described electricity-saving control system is provided with indicator light H2, and the function contact output of described frequency converter VF is provided with a running indicator H3.

6. the two operational systems of a kind of blower fan electricity-saving cabinet according to claim 1, is characterized in that, described control circuit system is provided with a rotation emergency stop switch HA and buzzer.

7. the two operational systems of a kind of blower fan electricity-saving cabinet according to claim 1, is characterized in that, ammeter PA and the voltmeter PV for observing electric current, voltage is housed on described 380V control circuit system.

8. the two operational systems of a kind of blower fan electricity-saving cabinet according to claim 1, is characterized in that, is connected with one on the function contact of described frequency converter VF for measuring the anemobiagraph of wind speed.