CN104083781B - A kind of sterilizing methods of steam autoclave and steam autoclave - Google Patents
A kind of sterilizing methods of steam autoclave and steam autoclave Download PDFInfo
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- CN104083781B CN104083781B CN201410346922.8A CN201410346922A CN104083781B CN 104083781 B CN104083781 B CN 104083781B CN 201410346922 A CN201410346922 A CN 201410346922A CN 104083781 B CN104083781 B CN 104083781B
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Abstract
A kind of sterilizing methods of steam autoclave and steam autoclave, comprise sterilization chamber (6), interlayer (7), and ejector is found time unit, it is characterized in that: be provided with sterilization chamber interlayer air admission unit, and make the return trip empty unit, sterilization chamber hydrophobic units, sterilization chamber of sterilization chamber is found time unit, interlayer admission unit and interlayer hydrophobic units, concrete sterilization steps comprises: step 1, warm-up phase; Step 2, is just pulsing the displacement stage; Step 3, the negative ripple displacement stage; Step 4, the pulsation stage; Step 5, the temperature rise period; Step 6, sterilization phase; Step 7, exhaust phase; Step 8, drying stage; Step 9, makes the return trip empty the stage; Step 10, terminates.By sterilizing methods of the present invention, but the steam autoclave realizing band water ejector carries out sterilizing fast and efficiently.
Description
Technical field
The sterilizing methods of steam autoclave and a steam autoclave, belong to steam sterilization techniques field.
Background technology
The steam autoclave adopting saturated vapor to carry out sterilizing is a kind of steriliser common on the market, needs to arrange unit of finding time and find time to the steam in sterilization chamber and the condensed water that generates in the process of sterilizing in steam autoclave.Steam autoclave common at present generally adopts water ring vacuum pump to find time to sterilization chamber, water-ring vacuum pump is adopted to find time, primarily of following defect: 1, operationally work noise is comparatively large for water-ring vacuum pump, and power is comparatively large, causes considerable influence to staff simultaneously.2, when finding time, draining and gas exhaust piping are the malleation condition of high temperature, therefore there is certain potential safety hazard, due to above defect, cause steriliser inapplicable in some cases, limit the use of steriliser.
In view of above defect, the substitute products of some low noises start to occur, the steam autoclave of water ejector is used to be wherein a kind of, but also there is not comparatively perfect a set of sterilizing methods for water ejector at present, therefore constrain the development of the steam autoclave with water ejector to a certain extent.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides a kind of sterilizing methods of steam autoclave being applicable to be with water ejector realizing sterilizing fast and efficiently, and a kind of steam autoclave of efficient, low noise.
The technical solution adopted for the present invention to solve the technical problems is: the sterilizing methods of this steam autoclave, is characterized in that: comprise the steps:
Step 1, warm-up phase;
Open interlayer admission unit, external steam enters interlayer, carries out preheating by the steam in interlayer to equipment, by the intermittent work of interlayer admission unit, make pressure stability in interlayer at scheduled pressure value, after warm is complete, sterilization loads is put into sterilization chamber;
Step 2, is just pulsing the displacement stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer enter sterilization chamber, after the pressure in sterilization chamber rises to 80 ~ 100kPa, opens sterilization chamber and to find time unit, until close during Pressure Drop to 10 ~ 20kPa in sterilization chamber, completes a replacement cycles of just pulsing;
Step 3, the negative ripple displacement stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer enter sterilization chamber, after the pressure in sterilization chamber rises to 40 ~ 60kPa, opens sterilization chamber unit and ejector unit of finding time of finding time and finds time to sterilization chamber; When the Pressure Drop in sterilization chamber is to-10 ~-20kPa, closes find time unit and ejector of sterilization chamber and to find time unit, complete a negative ripple replacement cycles;
Step 4, the pulsation stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer enter sterilization chamber, after by the pressure recover in sterilization chamber to 0kPa, opens sterilization chamber unit and ejector unit of finding time of finding time and finds time to sterilization chamber; Pressure in sterilization chamber is evacuated to-80 ~-85kPa, completes a pulsating cyclic;
Step 5, the temperature rise period;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer enter sterilization chamber, open sterilization chamber hydrophobic units hydrophobic to carrying out in sterilization chamber simultaneously, after the temperature in sterilization chamber rises to predetermined temperature, close sterilization chamber interlayer air admission unit and stop to sterilization chamber delivering vapor;
Step 6, sterilization phase;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer enter sterilization chamber, and make pressure stability in sterilization chamber at 206 ~ 210kPa, temperature, at 134 DEG C ~ 137 DEG C, maintains 6 ~ 8min;
Step 7, exhaust phase;
Opening sterilization chamber unit of finding time makes the steam in sterilization chamber discharge, when the Pressure Drop in sterilization chamber is to 10kPa, and end aerofluxus;
Step 8, drying stage;
Open find time unit and ejector of sterilization chamber to find time unit, abundant drying is carried out to sterilization chamber;
Step 9, makes the return trip empty the stage;
Close sterilization chamber to find time unit, open sterilization chamber and to make the return trip empty unit, make pressure recover in sterilization chamber to atmospheric pressure;
Step 10, terminates;
Close sterilization chamber to make the return trip empty unit, taken out by sterilization loads, sterilizing terminates.
Preferably, the just pulsation replacement cycles described in step 2 carries out 3 ~ 5 times in the displacement stage of just pulsing.
Preferably, negative ripple replacement cycles described in step 3 carries out 3 ~ 5 times in the negative ripple displacement stage, and certainly carry out the circulation of second time negative ripple and start, sterilization chamber is boosted and blood pressure lowering time the force value ratio that reaches on once successively negative ripple circulation to successively decrease 10 ~ 15kPa.
A kind of steam autoclave, comprise sterilization chamber, be arranged on the interlayer of sterilization chamber outside, and the ejector that sterilization chamber and interlayer are found time is found time unit, it is characterized in that: be provided with the sterilization chamber interlayer air admission unit by sterilization chamber and interlayer UNICOM, and make the return trip empty unit, sterilization chamber hydrophobic units and sterilization chamber of the sterilization chamber to be connected with sterilization chamber is found time unit, the interlayer admission unit be connected with interlayer and interlayer hydrophobic units, sterilization chamber hydrophobic units, sterilization chamber unit and interlayer hydrophobic units unit of simultaneously finding time with above-mentioned ejector of finding time is connected.
Preferably, described ejector unit of finding time comprises the first check-valves, water ejector, water tank temperature sensor, water tank, entering water electromagnetic valve, overflow pipe, water inflow filter and water pump, one end of first check-valves simultaneously with sterilization chamber hydrophobic units, find time unit and interlayer hydrophobic units of sterilization chamber is connected, the other end of the first check-valves is connected with the main-inlet of water ejector, the outlet of water ejector is connected with water tank, the entrance of water pump is connected with the bottom of water tank, water delivery side of pump is connected with the secondary entrance of water ejector, water tank temperature sensor is installed in water tank, the side of water tank is provided with water inlet, water inlet is connected with water source with water inflow filter by entering water electromagnetic valve, be provided with overflow pipe in the side of water tank simultaneously.
Preferably, described sterilization chamber interlayer air admission unit is the second pneumatic control valve by sterilization chamber and interlayer UNICOM.
Preferably, described interlayer admission unit comprises the first pneumatic control valve, steam reducing valve and vapor filter, and one end of vapor filter connects steam source, and the other end is sequentially connected in series steam reducing valve and is connected with interlayer with after the first pneumatic control valve.
Preferably, described interlayer hydrophobic units comprises mechanical drain valve and filter sandwich, filter sandwich one end connection interlayer, and connect unit of finding time with described ejector after mechanical drain valve of the other end is connected.
Preferably, the described sterilization chamber unit that makes the return trip empty comprises sterilization chamber relief valve, the 3rd pneumatic control valve and air filter, and one end of air filter connects air, the other end connect successively after the 3rd pneumatic control valve and sterilization chamber relief valve with sterilization chamber UNICOM.
Preferably, described sterilization chamber hydrophobic units comprises the second check-valves, the 5th pneumatic control valve and sterilization chamber filter, one end and the described ejector of the second check-valves unit of finding time is connected, the other end be sequentially connected in series the 5th pneumatic control valve and sterilization chamber filter after with sterilization chamber UNICOM;
Described sterilization chamber unit of finding time comprises the 4th pneumatic control valve, and one end of the 4th pneumatic control valve is connected by pipeline and described ejector unit of finding time, and the other end is connected with sterilization chamber.
Compared with prior art, the beneficial effect that the present invention has is:
1, this sterilizing methods is for the steam autoclave of band water ejector, can realize such steam autoclave efficient, carry out sterilizing fast, has filled up the blank of the steam autoclave sterilizing methods of band water ejector.
2, by arranging sterilization chamber hydrophobic units, effectively the condensed water that sterilization process is formed can be discharged, ensure that the quality of sterilization chamber steam and the uniformity of temperature.
3, effectively the condensed water in interlayer can be discharged by mechanical drain valve, ensure that interlayer saturated vapor quality.
4, discharge cold air by water ejector vacuum unit completely through the displacement of program and pulsation stage, ensure the penetrance of steam, realize the good sterilizing of load.
5, when carrying out evacuation to steriliser, at water pump, between ejector and water tank, forming water cycle, improve the efficiency of finding time.
6, water tank place is provided with water inlet, by continuous water inlet, the water temperature in continuing and in water tank, when the water level in water tank is higher than overfall, is flowed out by drain line, makes drain line be in low temperature duty with no pressure, ensure that the safety of work.
7, water pump does not adopt common water pump to instead of the water-ring vacuum pump generally adopted in prior art simultaneously, reduces noise during steriliser work.
Accompanying drawing explanation
Fig. 1 is steam autoclave pipeline connection diagram.
Fig. 2 is steam autoclave complete machine figure.
Fig. 3 is steam autoclave vaporization method flow chart.
Fig. 4 is steam autoclave Leak Detection program flow diagram.
Wherein: 1, interlayer thermometer 2, interlayer piezometer 3, sterilization chamber thermometer 4, sterilization chamber piezometer 5, interlayer relief valve 6, sterilization chamber 7, interlayer 8, first pneumatic control valve 9, steam reducing valve 10, sterilization chamber relief valve 11, second pneumatic control valve 12, vapor filter 13, 3rd pneumatic control valve 14, air filter 15, first check-valves 16, water ejector 17, water tank temperature sensor 18, water tank 19, entering water electromagnetic valve 20, overflow pipe 21, water inflow filter 22, water pump 23, 4th pneumatic control valve 24, second check-valves 25, machinery drain valve 26, 5th pneumatic control valve 27, sterilization chamber filter 28, sterilization chamber temperature sensor 29, filter sandwich 30, Qianmen 31, shell 32, back door.
Detailed description of the invention
Fig. 1 ~ 4 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 4, the present invention will be further described.
As shown in Figure 1 and 2, a kind of steam autoclave with water ejector, comprises shell 31, is fixed on Qianmen 30 and the back door 32 at shell 31 two ends.Be provided with in the inside of shell 31 and surround by Qianmen 30, back door 32 and sterilization chamber wall the sterilization chamber 6 formed, have interlayer 7 in sterilization chamber 6 outer setting, be connected by means of only sterilization chamber interlayer air admission unit between sterilization chamber 6 and interlayer 7.Interlayer thermometer 1, interlayer piezometer 2 and the interlayer relief valve 5 respectively the temperature and pressure in interlayer 7 being monitored and show is provided with at interlayer 7 place; The sterilization chamber thermometer 3 and sterilization chamber piezometer 4 respectively the temperature and pressure in sterilization chamber 6 being monitored and show is provided with at sterilization chamber 6 place.Be provided with the interlayer admission unit and interlayer hydrophobic units that are connected with interlayer 7, and make the return trip empty unit, sterilization chamber hydrophobic units and sterilization chamber of the sterilization chamber be connected with sterilization chamber 6 is found time unit simultaneously.Sterilization chamber hydrophobic units, sterilization chamber unit and interlayer hydrophobic units unit of simultaneously finding time with ejector of finding time is connected.
One end that above-mentioned sterilization chamber interlayer air admission unit comprises the second pneumatic control valve 11, second pneumatic control valve 11 connects sterilization chamber 6 by pipeline, and the other end is by pipeline connection interlayer 7.
Above-mentioned interlayer admission unit comprises the first pneumatic control valve 8, steam reducing valve 9 and vapor filter 12.One end of vapor filter 12 connects steam source, and the other end is sequentially connected in series steam reducing valve 9 by pipeline and is connected with interlayer 7 afterwards with the first pneumatic control valve 8.
Above-mentioned interlayer hydrophobic units comprises mechanical drain valve 25 and filter sandwich 29, filter sandwich 29 one end is by pipeline connection interlayer 7, and the other end is connected after mechanical drain valve 25 by pipeline and is connected with the first check-valves 15 that above-mentioned ejector is found time in unit.Effectively the condensed water in interlayer 7 can be discharged by mechanical drain valve 25, ensure that interlayer 7 saturated vapor quality.
The above-mentioned sterilization chamber unit that makes the return trip empty comprises sterilization chamber relief valve 10, the 3rd pneumatic control valve 13 and air filter 14, one end of air filter 14 connects air, the other end by pipeline connect successively after the 3rd pneumatic control valve 13 and sterilization chamber relief valve 10 with sterilization chamber 6 UNICOM.
Above-mentioned sterilization chamber hydrophobic units comprises the second check-valves 24, the 5th pneumatic control valve 26 and sterilization chamber filter 27.The first check-valves 15 found time in unit by pipeline and above-mentioned ejector in one end of second check-valves 24 is connected, the other end of the second check-valves 24 be sequentially connected in series the 5th pneumatic control valve 26 and sterilization chamber filter 27 by pipeline after with sterilization chamber 6 UNICOM.By arranging sterilization chamber hydrophobic units, effectively the condensed water that sterilization process is formed can be discharged, ensure that the quality of sterilization chamber 6 steam and the uniformity of temperature.
Above-mentioned sterilization chamber unit of finding time comprises the 4th pneumatic control valve 23, the first check-valves 15 found time in unit by pipeline and above-mentioned ejector in one end of 4th pneumatic control valve 23 is connected, and the other end and sterilization chamber filter 27 are compiled in a road and are connected with sterilization chamber 6 simultaneously.Jointly and on the pipeline of sterilization chamber 6 UNICOM be connected with sterilization chamber temperature sensor 28 at sterilization chamber filter 27 and the 4th pneumatic control valve 23 simultaneously.
Above-mentioned ejector unit of finding time comprises the first check-valves 15, water ejector 16, water tank temperature sensor 17, water tank 18, entering water electromagnetic valve 19, overflow pipe 20, water inflow filter 21 and water pump 22.One end of first check-valves 15 is connected with the 4th above-mentioned pneumatic control valve 23, second check-valves 24 and mechanical drain valve 25 by pipeline simultaneously, the other end of the first check-valves 15 is connected by the main-inlet of pipeline with water ejector 16, the outlet of water ejector 16 is connected with water tank 18, the entrance of water pump 22 is connected with the bottom of water tank 18, and the outlet of water pump 22 is connected with the secondary entrance of water ejector 16.Water tank temperature sensor 17 is installed in water tank 18.The side of water tank 18 is provided with water inlet, and water inlet is connected with water source with water inflow filter 21 afterwards by pipeline series connection entering water electromagnetic valve 19.Be provided with overfall in the side of water tank 18, overfall place is connected with overflow pipe 20 simultaneously.
Ejector find time unit find time time, along with steam or condensed water are constantly extracted out, water temperature in water tank 18 raises gradually, when the temperature of water in water tank 18 is higher than design temperature, entering water electromagnetic valve 19 opens water filling in water tank 18, reduce the water temperature in water tank 18, after water level exceedes overfall, unnecessary water is discharged by overflow pipe 20 through overfall.Along with constantly entering of water source, the temperature in water tank 18 reduces gradually, and when the temperature in water tank 18 is reduced to below setting value, entering water electromagnetic valve 19 is closed, and stops water filling in water tank 18.Controlled by water tank temperature sensor 17 pairs of entering water electromagnetic valves 19, to avoid in water tank 18 excessively water inlet and the waste that causes.
To enter through entering water electromagnetic valve 19 owing to constantly there being water in water tank 18 and carry out heat exchange, so the water temperature of the water of being discharged by overflow pipe 20 is lower and do not have unnecessary pressure, achieves low temperature excretion with no pressure, ensure that the safety of work.
Find time in unit in the circulation that should be used for steriliser, water pump 22, for adopting water-ring vacuum pump of the prior art, have employed common water pump, avoids the shortcoming that when water-ring vacuum pump works, noise is larger.
As shown in Figure 3, with the sterilizing flow process of the steam autoclave of water ejector, comprise the steps:
Step 1, warm-up phase;
Open the first pneumatic control valve 8, steam-out (SO) enters interlayer 7 through vapor filter 12, steam reducing valve 9 and the first pneumatic control valve 8, carry out preheating by the steam in interlayer 7 to equipment, the temperature and pressure now in interlayer thermometer 1 and interlayer piezometer 2 pairs of interlayers 7 is monitored.By the intermittent work of the first pneumatic control valve 8, make the scheduled pressure value of the pressure stability in interlayer 7.In warm, water ejector 16 and mechanical drain valve 25 are opened, and the condensed water formed are drained in water tank 18 in interlayer 7.After warm is complete, Qianmen 30 is opened, puts into sterilization loads, then Qianmen 30 is closed.
Step 2, is just pulsing the displacement stage;
Open the second pneumatic control valve 11, steam in interlayer 7 enters in sterilization chamber 6, and the pressure in sterilization chamber 6 is risen to 80 ~ 100kPa, then open the 4th pneumatic control valve 23 pairs of sterilization chamber 6 to be exhausted, close the 4th pneumatic control valve 23 as the Pressure Drop to 10 in sterilization chamber 6 ~ 20kPa, complete a replacement cycles of just pulsing.Just pulsing the displacement stage whole, replacement cycles of just pulsing for 3 ~ 5 times need carried out.
Step 3, the negative ripple displacement stage;
Opening the second drive control valve 11 makes the steam in interlayer 7 enter sterilization chamber 6, and the pressure in sterilization chamber 6 is risen to 40 ~ 60kPa.Then open the 4th pneumatic control valve 23, water ejector 16 and water pump 22, by the combined effect of water ejector 16 and water pump 22, sterilization chamber 6 is found time.When the Pressure Drop in sterilization chamber 6 is to-10 ~-20kPa, closes the 4th pneumatic control valve 23, stop finding time to sterilization chamber 6, so far complete a negative ripple replacement cycles.
In the whole negative ripple displacement stage, 3 ~ 5 above-mentioned negative ripple replacement cycles are needed.Start from the circulation of execution the 2nd negative ripple, sterilization chamber 6 is boosted and blood pressure lowering time the pressure of pressure ratio when to carry out pair pulsating cyclic last time to successively decrease successively 10 ~ 15kPa.
Step 4, the pulsation stage;
Opening the second pneumatic control valve 11 makes the steam in interlayer 7 enter sterilization chamber 6, by the pressure recover in sterilization chamber 6 to 0kPa, then the 4th pneumatic control valve 23, water ejector 16 and water pump 22 is opened, by the combined effect of water ejector 16 and water pump 22, sterilization chamber 6 is found time, by the Pressure Drop in sterilization chamber 6 to-80kPa, complete a pulsating cyclic.In the whole pulsation stage, need to carry out three pulsating cyclic.
After the pulsation stage completes, open the 5th pneumatic control valve 26, the condensed water in sterilization chamber 6 is discharged.
Step 5, the temperature rise period;
Opening the second drive control valve 11 makes the steam in interlayer 7 enter sterilization chamber 6, opens the 5th pneumatic control valve 26 and water ejector 16 simultaneously, hydrophobic to carrying out in sterilization chamber 6.Pressure in sterilization chamber 6 and constant temperature rise, and after the temperature in sterilization chamber 6 rises to predetermined temperature, close the second pneumatic control valve 11, stop delivering vapor in sterilization chamber 6.
Step 6, sterilization phase;
Opening the second pneumatic control valve 11 makes the steam in interlayer 7 enter sterilization chamber 6, makes pressure stability in sterilization chamber 6 at 206 ~ 210kPa, and temperature, at 134 DEG C ~ 137 DEG C, maintains 6 ~ 8min.
Step 7, exhaust phase;
After sterilization phase terminates, open the 4th pneumatic control valve 23, the steam in sterilization chamber 6 is discharged fast, and along with the continuous discharge of steam in sterilization chamber 6, the pressure in sterilization chamber 6 constantly declines, and when the Pressure Drop in sterilization chamber 6 is to 10kPa, terminates aerofluxus.
Step 8, drying stage;
Open the 4th pneumatic control valve 23 and water pump 22, accelerate the volatilization of the steam in sterilization chamber 6, carry out abundant drying to sterilization chamber 6, the drying stage time is 15min.
Step 9, makes the return trip empty the stage;
Close the 4th pneumatic control valve 23, open the 3rd pneumatic control valve 13, make pressure recover in sterilization chamber 6 to atmospheric pressure.
Step 10, terminates;
Close the 3rd pneumatic control valve 13, open back door 32 and taken out by sterilization loads, sterilizing terminates.
As shown in Figure 4, the leak-testing flow process of this steam autoclave, comprises the steps:
Step 1, warm-up phase;
Open the first pneumatic control valve 8, steam-out (SO) enters interlayer 7 through vapor filter 12, steam reducing valve 9 and the first pneumatic control valve 8, carry out preheating by the steam in interlayer 7 to equipment, the temperature and pressure now in interlayer thermometer 1 and interlayer piezometer 2 pairs of interlayers 7 is monitored.By the intermittent work of the first pneumatic control valve 8, make the scheduled pressure value of the pressure stability in interlayer 7.In warm, water ejector 16 and mechanical drain valve 25 are opened, and the condensed water formed are drained in water tank 18 in interlayer 7.After warm is complete, Qianmen 30 is opened, puts into sterilization loads, then Qianmen 30 is closed.
Step 2, is just pulsing the displacement stage;
Open the second pneumatic control valve 11, steam in interlayer 7 enters in sterilization chamber 6, and the pressure in sterilization chamber 6 is risen to 80 ~ 100kPa, then open the 4th pneumatic control valve 23 pairs of sterilization chamber 6 to be exhausted, close the 4th pneumatic control valve 23 as the Pressure Drop to 10 in sterilization chamber 6 ~ 20kPa, complete a replacement cycles of just pulsing.Just pulsing the displacement stage whole, replacement cycles of just pulsing for 3 ~ 5 times need carried out.
Step 3, the negative ripple displacement stage;
Opening the second drive control valve 11 makes the steam in interlayer 7 enter sterilization chamber 6, and the pressure in sterilization chamber 6 is risen to 40 ~ 60kPa.Then open the 4th pneumatic control valve 23, water ejector 16 and water pump 22, by the combined effect of water ejector 16 and water pump 22, sterilization chamber 6 is found time.When the Pressure Drop in sterilization chamber 6 is to-10 ~-20kPa, closes the 4th pneumatic control valve 23, stop finding time to sterilization chamber 6, so far complete a negative ripple replacement cycles.
In the whole negative ripple displacement stage, 3 ~ 5 above-mentioned negative ripple replacement cycles are needed.Start from the circulation of execution the 2nd negative ripple, sterilization chamber 6 is boosted and blood pressure lowering time the pressure of pressure ratio when to carry out pair pulsating cyclic last time to successively decrease successively 10 ~ 15kPa.
Step 4, pump-down;
Open the 4th pneumatic control valve 23, water ejector 16 and water pump 22, sterilization chamber 6 is found time, the pressure in sterilization chamber 6 is evacuated to the pressure minimum that can be extracted into.
Step 5, the maintenance stage;
Close and above-mentionedly all comprise electromagnetic valve, all valves of pneumatic control valve and water pump 22, maintain 5 ~ 10min, guarantee water evaporation residual in pipeline and cabinet.
Step 6, test phase;
After maintenance stage completes, continue maintenance 8 ~ 12min in this condition, and the force value in sterilization chamber 6 is monitored.
If the pressure drop in test phase sterilization chamber 6 is to being less than 1.3kPa, then represent that the leakage situation of steam autoclave meets the requirements.
Step 7, makes the return trip empty the stage;
Open the 3rd pneumatic control valve 13, make the force value in sterilization chamber 6 return to current atmospheric pressure.
Step 8, terminates;
Close the 3rd pneumatic control valve 13, testing process terminates.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (8)
1. a sterilizing methods for steam autoclave, is characterized in that: comprise the steps:
Step 1, warm-up phase;
Open interlayer admission unit, external steam enters interlayer (7), by the steam in interlayer (7), preheating is carried out to equipment, by the intermittent work of interlayer admission unit, make pressure stability in interlayer (7) at scheduled pressure value, after warm is complete, sterilization loads is put into sterilization chamber (6);
Step 2, is just pulsing the displacement stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer (7) enter sterilization chamber (6), after the pressure in sterilization chamber (6) rises to 80 ~ 100kPa, open sterilization chamber to find time unit, until close during Pressure Drop to 10 ~ 20kPa in sterilization chamber (6), complete a replacement cycles of just pulsing;
Step 3, the negative ripple displacement stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer (7) enter sterilization chamber (6), after the pressure in sterilization chamber (6) rises to 40 ~ 60kPa, opens sterilization chamber unit and ejector unit of finding time of finding time and finds time to sterilization chamber (6); When the Pressure Drop in sterilization chamber (6) is to-10 ~-20kPa, closes find time unit and ejector of sterilization chamber and to find time unit, complete a negative ripple replacement cycles;
Step 4, the pulsation stage;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer (7) enter sterilization chamber (6), when by the pressure recover in sterilization chamber (6) to 0kPa, open sterilization chamber unit and ejector unit of finding time of finding time and sterilization chamber (6) found time; Pressure in sterilization chamber (6) is evacuated to-80 ~-85kPa, completes a pulsating cyclic;
Step 5, the temperature rise period;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer (7) enter sterilization chamber (6), open sterilization chamber hydrophobic units hydrophobic to carrying out in sterilization chamber (6) simultaneously, after the temperature in sterilization chamber (6) rises to predetermined temperature, close sterilization chamber interlayer air admission unit and stop to sterilization chamber (6) delivering vapor;
Step 6, sterilization phase;
Opening sterilization chamber interlayer air admission unit makes the steam in interlayer (7) enter sterilization chamber (6), and make pressure stability in sterilization chamber (6) at 206 ~ 210kPa, temperature, at 134 DEG C ~ 137 DEG C, maintains 6 ~ 8min;
Step 7, exhaust phase;
Opening sterilization chamber unit of finding time makes the steam in sterilization chamber (6) discharge, when the Pressure Drop in sterilization chamber (6) is to 10kPa, and end aerofluxus;
Step 8, drying stage;
Open find time unit and ejector of sterilization chamber to find time unit, abundant drying is carried out to sterilization chamber (6);
Step 9, makes the return trip empty the stage;
Close sterilization chamber to find time unit, open sterilization chamber and to make the return trip empty unit, make pressure recover in sterilization chamber (6) to atmospheric pressure;
Step 10, terminates;
Close sterilization chamber to make the return trip empty unit, taken out by sterilization loads, sterilizing terminates.
2. the sterilizing methods of steam autoclave according to claim 1, is characterized in that: the just pulsation replacement cycles described in step 2 carries out 3 ~ 5 times in the displacement stage of just pulsing.
3. one kind for realizing the steam autoclave of the described sterilizing methods of one of claim 1 ~ 2, comprise sterilization chamber (6), be arranged on the interlayer (7) that sterilization chamber (6) is outside, and the ejector that sterilization chamber (6) and interlayer (7) are found time is found time unit, it is characterized in that: be provided with the sterilization chamber interlayer air admission unit by sterilization chamber (6) and interlayer (7) UNICOM, and the sterilization chamber to be connected with sterilization chamber (6) is made the return trip empty unit, sterilization chamber hydrophobic units and sterilization chamber are found time unit, the interlayer admission unit be connected with interlayer (7) and interlayer hydrophobic units, sterilization chamber hydrophobic units, sterilization chamber unit and interlayer hydrophobic units unit of simultaneously finding time with above-mentioned ejector of finding time is connected,
Described ejector unit of finding time comprises the first check-valves (15), water ejector (16), water tank temperature sensor (17), water tank (18), entering water electromagnetic valve (19), overflow pipe (20), water inflow filter (21) and water pump (22), one end of first check-valves (15) simultaneously with sterilization chamber hydrophobic units, find time unit and interlayer hydrophobic units of sterilization chamber is connected, the other end of the first check-valves (15) is connected with the main-inlet of water ejector (16), the outlet of water ejector (16) is connected with water tank (18), the entrance of water pump (22) is connected with the bottom of water tank (18), the outlet of water pump (22) is connected with the secondary entrance of water ejector (16), water tank temperature sensor (17) is installed in water tank (18), the side of water tank (18) is provided with water inlet, water inlet is connected with water source with water inflow filter (21) by entering water electromagnetic valve (19), be provided with overflow pipe (20) in the side of water tank (18) simultaneously.
4. steam autoclave according to claim 3, is characterized in that: described sterilization chamber interlayer air admission unit is the second pneumatic control valve (11) by sterilization chamber (6) and interlayer (7) UNICOM.
5. steam autoclave according to claim 3, it is characterized in that: described interlayer admission unit comprises the first pneumatic control valve (8), steam reducing valve (9) and vapor filter (12), one end of vapor filter (12) connects steam source, and the other end is sequentially connected in series steam reducing valve (9) and is connected with interlayer (7) with after the first pneumatic control valve (8).
6. steam autoclave according to claim 3, it is characterized in that: described interlayer hydrophobic units comprises mechanical drain valve (25) and filter sandwich (29), filter sandwich (29) one end connection interlayer (7), connect unit of finding time with described ejector after mechanical drain valve (25) of the other end is connected.
7. steam autoclave according to claim 3, it is characterized in that: the described sterilization chamber unit that makes the return trip empty comprises sterilization chamber relief valve (10), the 3rd pneumatic control valve (13) and air filter (14), one end of air filter (14) connects air, the other end connect successively the 3rd pneumatic control valve (13) and sterilization chamber relief valve (10) afterwards with sterilization chamber (6) UNICOM.
8. steam autoclave according to claim 3, it is characterized in that: described sterilization chamber hydrophobic units comprises the second check-valves (24), the 5th pneumatic control valve (26) and sterilization chamber filter (27), one end and the described ejector of the second check-valves (24) unit of finding time is connected, the other end be sequentially connected in series the 5th pneumatic control valve (26) and sterilization chamber filter (27) after with sterilization chamber (6) UNICOM;
Described sterilization chamber unit of finding time comprises the 4th pneumatic control valve (23), and one end of the 4th pneumatic control valve (23) is connected by pipeline and described ejector unit of finding time, and the other end is connected with sterilization chamber (6).
Priority Applications (1)
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| NL2013735B1 (en) * | 2014-11-04 | 2016-10-04 | Jbt B&Bs B V | Device for the filling and/or closing of containers having a drive shaft decontamination box. |
| CN104474564B (en) * | 2014-12-08 | 2017-08-25 | 老肯医疗科技股份有限公司 | A kind of energy-saving high vacuum autoclave with pulsing system |
| CN106729793A (en) * | 2017-01-19 | 2017-05-31 | 张家港欧思瑞医疗科技有限公司 | A kind of prefilled syringe sterilizing cabinet |
| CN107648625B (en) * | 2017-09-13 | 2020-01-07 | 浙江大学 | High efficiency, high availability pulse vacuum sterilizer and method |
| CN109901648B (en) * | 2017-12-11 | 2021-02-09 | 杭州科腾生物制品有限公司 | Control method of final sterilization system of gel pre-filled and sealed syringe |
| CN109590271B (en) * | 2019-02-14 | 2021-08-06 | 河南中医药大学 | Quick belt cleaning device of medical instrument |
| CN112316162A (en) * | 2020-11-26 | 2021-02-05 | 山东新华医疗器械股份有限公司 | Pulsation vacuum sterilizer and vacuum circulation system thereof |
| CN113750263B (en) * | 2021-09-08 | 2023-04-21 | 迈柯唯医疗设备(苏州)有限公司 | Simple and reliable high-temperature steam sterilizer |
| CN113975419B (en) * | 2021-11-02 | 2023-09-19 | 连武林 | Oral cavity inspection instrument degassing unit for department of stomatology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103394106A (en) * | 2013-07-30 | 2013-11-20 | 山东新华医疗器械股份有限公司 | Steam sterilizer and sterilization process |
| CN203417350U (en) * | 2013-07-30 | 2014-02-05 | 山东新华医疗器械股份有限公司 | Steam disinfector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103394106A (en) * | 2013-07-30 | 2013-11-20 | 山东新华医疗器械股份有限公司 | Steam sterilizer and sterilization process |
| CN203417350U (en) * | 2013-07-30 | 2014-02-05 | 山东新华医疗器械股份有限公司 | Steam disinfector |
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