CN2158616Y

CN2158616Y - Automatic direct-blowing device for separater for animal raising

Info

Publication number: CN2158616Y
Application number: CN 92220872
Authority: CN
Inventors: 范书曦
Original assignee: Institute Of Animal Husbandry And Veterinary Medicine Beijing Academy Of Agricultural And Forestry Sciences
Current assignee: Institute Of Animal Husbandry And Veterinary Medicine Beijing Academy Of Agricultural And Forestry Sciences
Priority date: 1992-09-26
Filing date: 1992-09-26
Publication date: 1994-03-16
Anticipated expiration: 2002-09-26

Abstract

The utility model relates to an automatic direct-blowing device for a full-closed separator for animal raising, mainly being composed of a rectifying and wave filtering module, an electromagnetic switch device, a direct-blowing system, a power-off alarming device, an operating state indicating module and a direct monitor. The utility model is characterized in that a control circuit is composed of the rectifying and wave filtering module and the electromagnetic switch device, and the direct-blowing system is composed of a direct blower and a storage battery. The cost of the utility model only is 1/40-1/50 of the automatic direct-blowing device adopting a UPS or an electric generator.

Description

Automatic direct-blowing device for separater for animal raising

The automatic direct current air-supply arrangement of animal feeding isolator is to be used for when the mains-supplied grid power blackout being a kind of blowing device of air-supply in the isolator, and is unlikely because of anoxic death by suffocation with the animal that guarantee is raised in isolator.

In recent years, isolator is used in the medical science of China, biology R﹠D institution and biological pharmaceutical factory in a large number, so that set up and keep a kind of no-special pathogen environment effectively, be used to raise germfree animal, gnotobiote, perhaps be used to close the animal of supporting inoculation harmfulness, contagiosity or chemical sex factor.

Various types of isolators of present domestic application all must have stable continual electric power system that electric power is provided, and with positive and negative pressure ventilation, environmental temperature and the illumination that guarantees that it is inner, wherein the most key is to ventilate.According to result of the test, interior out-of-blast 3-5 minute of isolator is raised the various physiological statuss that promptly obviously show anoxic in interior animal, and is last so that death by suffocation.Happen occasionally because of a variety of causes causes the phenomenon of power failure at ordinary times, at present, general solution is that generator is installed, or adopts the UPS uninterrupted power source.Generator is installed, and cost height not only, but also the personnel that need establish are on duty round the clock constantly all must not away from posts, in case have a power failure, must power by starter-generator in 3 minutes, and it is bigger that this method is done difficulty.And adopt the UPS uninterrupted power source, not only cost an arm and a leg, and power-on time is limited.

The purpose of this utility model is to provide a kind of direct current air-supply arrangement, when stopping, mains supply can connect dc source immediately automatically, driving dc fan blows in isolator, when power system restoration is powered, can cut off the direct current electric current immediately, dc fan quits work, and former isolator fan starting is blown in isolator, reach to guarantee to raise and obtain sufficient air, normal existence in interior animal.

The utility model is by rectification filtering module 1, electromagentic switching apparatus 2, and direct current supply air system 3, power-off alarm 4, duty indicating module 5, six parts such as direct current monitor 6 grades are formed.Its course of work is that rectification filtering module 1 constitutes control section with electromagentic switching apparatus 2, the DC voltage that produces with rectification filtering module 1 is as the operating voltage of electromagentic switching apparatus 2, make electromagentic switching apparatus 2 select to close or start direct current supply air system 3 automatically according to the having or not of line voltage.Alarm 4 can in time sound the alarm when grid power blackout.Duty indicating module 5 shows this utility model power supply situation of living at any time.Direct current monitor 6 can provide dc source electric energy storage situation at any time.

The utility model is provided by following enforcement and accompanying drawing:

Fig. 1 is an overall diagram of the present utility model.

1, rectification filtering module; 2, electromagentic switching apparatus; 3, direct current supply air system; 4, power-off alarm; 5, duty indicating module; 6, direct current monitor.

Fig. 2 is a circuit diagram of the present utility model.

7,8 line voltage outputs; 9, AC transformer; 10, full-bridge; 11, electric capacity; 12, light emitting diode; 13, resistance; 14, DC relay; 15, buzzer; 16, light emitting diode; 17, resistance; 18, dc fan; 19, the contact of 21 DC relays 14; 20, the armature contact of DC relay 14; 22, D.C. voltmeter; 23, dc source.

Be elaborated below in conjunction with accompanying drawing:

With reference to Fig. 2, the utility model rectification filtering module 1 is made up of transformer 9, rectification full-bridge 10, filter capacitor 11; Electromagentic switching apparatus 2 is made up of relay 14, and wherein 19 is that normally-closed contact, 21 is that normally opened contact, 20 is armature contact; Direct current supply air system 3 is made up of dc fan 18, dc source 23; Power-off alarm is made of buzzer 15; The duty indicating module is made up of Light-Emitting Diode 12, resistance 13, Light-Emitting Diode 16, resistance 17; Direct current monitor 6 is made of D.C. voltmeter 22.

With reference to Fig. 2,7,8 of the primary coil of the utility model electromagnetic switch module transformer 9 connects mains supply, and secondary coil connects the input of rectification full-bridge 10.10 output connects with filter capacitor 11 and relay 14.After connecting with resistance 13, also ties light emitting diode 12 two ends at relay 14.

The buzzer 15 of direct current supply air system, Light-Emitting Diode 16 and all be connected to two ends of dc fan 18 after resistance 17 is connected in series, wherein an end is through the normally opened contact 19 of relay 14, swing arm 20 and 23 anodal connections of electric screen, the other end connects with electric screen 23 negative poles, and D.C. voltmeter 22 is connected to electric screen 23 two ends.Dc fan 18 is installed in the air inlet (positive draft) or the air outlet (exhaust ventilation) of isolator

Operation principle of the present utility model is to produce the operating voltage of a DC voltage as control section by transformer 9, full-bridge 10, electric capacity 11.After inserting line voltage at 7,8 two ends, relay 14 adhesives, DC circuit is cut off in 19 adhesives to 21 from the contact of its lever arm 20, and dc fan 18 quits work.Air-supply in the isolator is given in the former blower fan work of isolator.When grid power blackout, when the input of 7,8 two ends no-voltages, the lever arm 20 of relay 14 21 returns to 19 from the contact, and DC circuit is connected, and air-supply in the isolator is given in dc fan 18 work.No matter have or not commercial power supply thereby reach, all can ensure to the purpose of air-supply in the isolator automatically.

The utility model adopts electromagnetic switch to cooperate a cover direct-blowing device to form according to the physiological requirements of animal to oxygen, is characterized in that compared with the prior art the automatic control reliability is strong, and AC-DC conversion speed is fast, and it is on duty to need not the special messenger; With low cost, for adopting the 1/40-1/50 of UPS or generator cost; Power-on time is long, and the DC electric energy was kept 8-10 hour, and rate of ventilation is per hour more than 15 times, the needs that ventilation volume can the full feeding animal. Using the result proves: reliable to raising in interior animal safety.

Claims

1, a kind of automatic direct current air-supply arrangement that is used for totally-enclosed isolator is made up of rectification filtering module, electromagentic switching apparatus, direct current supply air system, power-off alarm, duty indicating module, dc state monitor, and its characteristics are:

The control circuit that rectification filtering module and electromagentic switching apparatus are formed is made up of transformer 9, rectification full-bridge 10, filter capacitor 11 and relay 14,7,8 of transformer connects mains supply, secondary coil connects the input of rectification full-bridge 10, and 10 output connects with filter capacitor 11 and relay 14;

The direct current supply air system is made up of dc fan 18, accumulator 23, the duty indicating module is made up of light emitting diode 16, resistance 17, light emitting diode 12, resistance 13, light emitting diode 12 and two ends that are attempted by relay 16 after resistance 13 connects, buzzer 15, Light-Emitting Diode 16 and all connect two ends with dc fan 18 after resistance 17 connects, wherein an end is through normally opened contact 19, the swing arm 20 and 23 anodal connections of accumulator of relay 14, and D.C. voltmeter 22 is connected to two ends of accumulator 23.