CN2105284U

CN2105284U - Full automatic epoxy ethane sterilizer

Info

Publication number: CN2105284U
Application number: CN 91225237
Authority: CN
Inventors: 冯立雄; 吴江山; 彭迪昆
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-13
Filing date: 1991-09-13
Publication date: 1992-05-27

Abstract

The utility model relates to a full automatic epoxy ethane sterilizing and disinfecting device. The utility model is characterized in that the full automatic epoxy ethane sterilizing and disinfecting device is provided with an automatic control mechanism treated by a microcomputer, a circuit actuating mechanism, a three stage sealed structure with a sealed door and a waste gas treatment combining device. The utility model has the advantages of high automation degree, arranged temperature, pressure, humidity, concentration, gas and time as required, wide application ranges, good sealing of the door, high safety factors, no pollution on the environment, convenient operation, etc., and is suitable for the sterilizing and disinfecting treatment with no injury to the contaminated objects with heat fear, humidity fear and complicated structure of precision instruments, medical apparatuses, important documents, customs quarantine control, valuable cultural relics, etc.

Description

Full automatic epoxy ethane sterilizer

This utility model belongs to the renewal of using the gaseous sterilization decontaminating apparatus under the air-tight state.

At present the oxirane disinfection equipment that uses only has the disinfecting power under the single rigid condition, and automaticity is low, subject range is little, enclosed construction imperfection, plenum system are single, no exhaust-gas treatment and fault alarm, fault treating apparatus.With Beijing HMQ-A type and Shanghai XD-2 type is example, comprehensive classification mainly has following defective: (1), automaticity is low, subject range is little, HMQ-A is a control system with the switching programme circuit, XD-2 then adopts electrical control, temperature, pressure, humidity all are set to fixed value, can not arbitrarily be provided with by the feature and the character of sterilizing objects, and the disinfecting time stepping is set, subject range is little, does not have functions such as fault detect warning, emergency processing.

(2), the enclosed construction imperfection, the sealed door of XD-2 and HMQ-A all adopts the opening ways of simple lay chain, easily causes the monolateral stressed and conquassation of sealing ring, what adopt when airtight is single stretching structure, safety coefficient is low, does not have the lock device under the duty simultaneously, leaves accident potential.

(3), the executive system function scope is little, the design imperfection, HMQ-A and XD-2 are single normal pressure air feed (disinfectant) mode, and sterilization is restricted, and do not have waste gas chemical combination device, easily cause environmental pollution.

The purpose of this utility model is to design the control of a kind of automatization, has the full-automatic ethylene oxide sterilizing decontaminating apparatus that withstand voltage sealed door and waste gas chemical combination are handled.

Of the present utility model being characterised in that: decontaminating apparatus has the automatic controls and the circuit actuator of MICROCOMPUTER PROCESSING, and the three grades of enclosed constructions and the waste gas chemical combination blood processor of sealed door are arranged.The automatic control circuit theory diagram that accompanying drawing 1 designs for this utility model, accompanying drawing 2 is the hermatic door structural representation of design, accompanying drawing 3 is a circuit actuator schematic diagram.1 is sealing ring among the figure, 2 bearing pin axle sleeves, 3 cross stretching bars, 4 inner panels, 5 have the stiffener of screw rod, 6 multiple twin chains, 7 bearing plates (outside plate), 8 handwheels and pedestal, 9 handles and pedestal, 10 draw-in grooves, 11 electric heaters, 12 electromagnetic valves of bleeding, 13 vacuum pumps, 14 waste gas combination apparatus, 15 combination apparatus electromagnetic valves, 16 Liquid spraying pumps, 17 humidification electromagnetic valves, 18 air inlet electromagnetic valves, 19 air filters, 20 dosing electromagnetic valves, 21 pressure transducers, 22 temperature sensors, 23 humidity sensors, 23 casings.

Concrete structure of the present utility model and instructions for use are described below:

Described automatic control system as shown in Figure 1.Adopting microcomputer (available CPU8031) is middle important department, and its 8 input/output lines link to each other with 8 output leads of keyboard (4 * 4), and the key of realization keyboard digital and specific function gives to be put; 8031 reseting pin links to each other with reset circuit, and realization manually, button resets and power on auto-reset function; 8031 by common expansion connection mode and address latch (available 74LS373), random data memory (available RAM6264), memory under program (available EPROM2732) links to each other, and has the minimum mechanism of computer of external program storage and data-storing with formation; 8031 interrupt pin adds the power down protection circuit; 8031 P ₀8 I/O data wires of mouth link to each other with 8 bit data output leads of analog to digital conversion circuit (available ADC0809), realize visiting mutually, receiving the function of sampled data; 8031 data wire is connected the APC0809 analog to digital conversion circuit with the chip select line of control line and decoder driver (available 74LS159), forms sampling mechanism; 8031 interrupt INT O feet and 0809 interrupt the application end and link to each other, and 8031 control lines are read (RQ), write (WR), address latch (ALE) links to each other with 0809 control line respectively, realize sampling and digital-to-analogue conversion is controlled; 0809 input receives pressure, temperature, humidity sensor respectively through the realization of the analog electrical signal behind discharge circuit sampling; 8031P ₂The high 4 bit address lines of mouth link to each other with 4 input lines of 74LS159 in the decoding circuit, 16 address wires of distributing output, wherein back 10 address wires are exported 10 address control lines with 8031 write signal (WR) through 74LS02 in the decoding circuit respectively, be input to the 11st pin of latch (some 74LS273) then respectively, so that its work of control gating; The 8 bit data input line of 74LS273 links to each other with the 8 bit data output leads of 74LS241 in the data bus driver, the 74LS07 of outfan and driver input line links to each other in the data latches, constitute the circuit of demonstration, controlling alarm actuator, control drives charactron demonstration, relay indicating light, alarm, electromagnetic lock, electromagnetic valve, vacuum pump, heater etc. respectively.The 3rd control line of P0 mouth data wire and P3 mouth links to each other with printer, the work of control printer.

Described circuit actuator as shown in Figure 3, in sterilization storehouse (casing), pressure is housed, temperature, humidity sensor, in disinfecting process with the pressure in the storehouse, temperature and humidity in time is delivered in the automatic control system, be connected to electric heater in the storehouse, be subjected to the temperature in the instruction control storehouse of robot control system(RCS), and also has chemical feed pipe, air inlet pipe, injection spray pipe and exhaustor pass in the sterilization storehouse, all there is electromagnetic valve to come gauge tap on each pipe, can be connected to air filter in air inlet pipe, on injection spray pipe, be connected to Liquid spraying pump, be connected to vacuum pump and waste gas combination apparatus on the exhaustor, combination apparatus is a water tank, is actually waste gas (disinfectant) and enters water tank through the vacuum pump extraction, soluble in water, avoid discharging contaminated environment, the circuit of each electromagnetic valve and pump is connected on respectively on the solid-state relay, controlled by robot control system(RCS).Work process is such, send instruction by control system, open air bleeding valve and vacuum pump earlier, evacuation in the storehouse of will sterilizing is opened into medicine valve, heater, humidifier valve and Liquid spraying pump more successively, is stressed, the monitoring of temperature, humidity sensor meets the requirements of pressure, temperature and humidity, begin sterilization, the intervalometer timing, sterilization finishes, and air bleeding valve and vacuum pump are opened evacuation, open intake valve again, clean air in the storehouse.

Three grades of enclosed constructions of described hermatic door adopt the multiple twin chain that door is connected with disinfection box as shown in Figure 2, and the degree of freedom of door unlatching more like this, closing behind the door, sealing ring is subjected to pressure at right angle, sealing effectiveness is better, and is difficult for by conquassation, and the structure of multiple twin chain is a prior art; After door is closed, move handwheel and drive its pedestal and coupled cross stretching bar, make in the draw-in groove that cross stretching bar falls into casing links to each other, turning handle drives its pedestal again, make the female thread of pedestal mesopore rotate (being equivalent to nut), promote the screw rod on the stiffener, make the door inner panel that links to each other with stiffener move inward, seal more tight; Several bearing pin axle sleeves are arranged between door inner panel and outside plate, and when the door inner panel moved inward, the axle sleeve internal pore increased, and makes inner panel and outside plate separate; By the position of door electromagnetic lock is housed at disinfection box, it is subjected to the control of automatic control system, to stop the behavior of opening the door under the duty.

Certainly, single ethylene oxide gas can not pressurize, heat, so when needs pressurization, heating disinfection, can select oxirane-carbon dioxide mix gas or oxirane-freon gaseous mixture for use.Work process of the present utility model is, close hermatic door, energized, electromagnetic lock locking, running parameter (temperature, humidity, pressure, concentration and time) be set, start, bleed, dosing, heating, humidification, sterilize, bring down stocks, print, shutdown, electromagnetic lock open, open the door.Whole process is automatization's control; its robot control system(RCS) has power down protection and electrification reset function; be in operation to revise parameter is set; break down at work or surpass safety coefficient when (comprise mistake is set); automatically report to the police and close all gauge taps; bring down stocks, make it recover normal.

By as can be seen above-mentioned, the utlity model has automaticity height, temperature, pressure, humidity, concentration, gas, time all can be provided with as required, that the good seal, safety coefficient height of wide accommodation, door, advantage such as free from environmental pollution, easy to operate, this utility model are applicable to is wet to fears such as precision instrument, medical equipment, important documents, customs quarantine control, rare cultural relics heat, fear, baroque microbiological contamination article carry out harmless property sterilization processing.

Claims

1, a kind of obturator of using gases sterilization, of the present utility model being characterised in that:

(1), automatic controls is arranged, mainly form by small-sized microcomputer, decoding circuit, address latch, data latches, memory under program, data/address bus drive circuit, change-over circuit, pick off discharge circuit, data memory, printer etc.;

(2), pressure, temperature, humidity sensor are arranged in the storehouse, its circuit is connected in the pick off discharge circuit in the controlling organization in sterilization;

(3), also have chemical feed pipe, air inlet pipe, injection spray pipe, exhaustor and electric heater in the sterilization storehouse, each pipeline is provided with electromagnetic valve, on air inlet pipe, be connected to air filter, connect Liquid spraying pump on the injection spray pipe, be connected to vacuum pump and waste gas combination apparatus on the exhaustor, the control line of heater and each electromagnetic valve and each pump is accepted its instruction mutually with controlling organization and is carried out work;

(4), the sealed door of device adopts the multiple twin chain to be connected with disinfection box, the inner face of door has rubber seal, door divides inner panel and outside plate, the plurality of load bearing pin sleeve is arranged between two plates, be connected to the stiffener of band screw rod on the inner panel, screw rod extends outside the outside plate, outside plate has handle and pedestal thereof outward, the mesopore of its pedestal has female thread to match with screw rod, outside plate also has handwheel and pedestal thereof outward, and its pedestal extends between outside plate and the inner panel, joins with cross stretching bar, in the draw-in groove that rotation can drop on casing is connected of cross stretching bar, lean on the position of door that electromagnetic lock is arranged at casing.

2, device according to claim 1 is characterized in that: be connected to reset circuit on microcomputer, electric heater, each electromagnetic valve and pump and electromagnetic lock all are connected on the data latches by solid-state relay, and the waste gas combination apparatus that is connected in exhaustor is a water tank.