CN106200718A - The temperature-controlled process of sterilizing cabinet - Google Patents

The temperature-controlled process of sterilizing cabinet Download PDF

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Publication number
CN106200718A
CN106200718A CN201610683551.1A CN201610683551A CN106200718A CN 106200718 A CN106200718 A CN 106200718A CN 201610683551 A CN201610683551 A CN 201610683551A CN 106200718 A CN106200718 A CN 106200718A
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China
Prior art keywords
temperature
time
valve
heating valve
controlled process
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CN201610683551.1A
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Chinese (zh)
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CN106200718B (en
Inventor
沈波
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Truking Technology Ltd
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Truking Technology Ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A61L2/06—Hot gas
    • A61L2/07—Steam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention discloses the temperature-controlled process of a kind of sterilizing cabinet, initial value including S01, the valve opening retention time presetting heating valve is t1, and preset the first preset temperature T0, the second preset temperature T1, target control temperature T2 and the 3rd preset temperature T3, wherein T0 ＜ T1 ＜ T2 ＜ T3；S02, using purified water outlet temperature T of heat exchanger as controlling temperature and detecting in real time, as T, < during T0, heating valve is persistently opened；As T0≤T ＜ T1, heating valve is closed after continuing opening time t1+ Δ t；As T1≤T ＜ T2, heating valve is closed after continuing opening time t1；As T > T2 time, close heating valve；As T > T3 time, the valve opening retention time initial value closed in heating valve and default step S01 is t1 Δ t, and wherein Δ t is time variation amount.The temperature-controlled process of the sterilizing cabinet of the present invention has control simplicity and precision advantages of higher.

Description

The temperature-controlled process of sterilizing cabinet
Technical field
The invention mainly relates to medicine, Food Packaging technology field, refer in particular to the temperature-controlled process of a kind of sterilizing cabinet.
Background technology
The temperature control scheme of traditional sterilizing cabinet is: close steam valve higher than a certain control temperature, controls temperature less than a certain Degree drives steam valve.Owing to temperature has bigger inertia, use traditional method that persistent period of on or off valve can be caused long, Thus cause sterilization phase temperature overshot and larger fluctuation.
Summary of the invention
The technical problem to be solved in the present invention is that the technical problem existed for prior art, and the present invention provides one Plant the temperature-controlled process controlling simple and that precision is high sterilizing cabinet.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
The temperature-controlled process of a kind of sterilizing cabinet, comprises the following steps:
S01, the initial value of the valve opening retention time presetting heating valve are t1, and preset the first preset temperature T0, the second default temperature Degree T1, target control temperature T2 and the 3rd preset temperature T3, wherein T0 ＜ T1 ＜ T2 ＜ T3；
S02, using purified water outlet temperature T of heat exchanger as controlling temperature and detecting in real time, as T, < during T0, heating valve is persistently opened Open；As T0≤T ＜ T1, heating valve is closed after continuing opening time t1+ Δ t；As T1≤T ＜ T2, heating valve is persistently opened Close after time t1；As T > T2 time, close heating valve；As T > T3 time, close the valve opening in heating valve and default step S01 and keep Time initial value is t1-Δ t, and wherein Δ t is time variation amount.
Further improvement as technique scheme:
In step S02, when T >=T0, after heating valve is closed, after delay time t2, carry out the judgement of temperature next time again.
The span of described t2 is 1～5s.
Described heating valve is steam valve, and described heat exchanger is plate type heat exchanger.
Described heating valve is secondary inlet valve.
Described T3-T1 < 1.
The span of described Δ t is 0～1s.
Compared with prior art, it is an advantage of the current invention that:
The temperature-controlled process of the sterilizing cabinet of the present invention, when using multiple wise temperature to continue the switch of heating valve and valve opening Between be independently controlled, it is possible to keep the temperature inside the box stationarity, it is to avoid temperature overshot or larger fluctuation；And during heating valve valve opening Between have respective change by variations in temperature, it is possible to make the duration of valve opening of heating valve one reasonably in the range of, carry further The high precision controlled.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the present invention.
Fig. 2 is the sterilizing cabinet temperature control figure of the present invention.
In figure, label represents: 1, casing；2, temperature sensor；3, heat exchanger；4, main inlet valve；5, secondary inlet valve.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As depicted in figs. 1 and 2, the temperature-controlled process of the sterilizing cabinet of the present embodiment, comprise the following steps:
S01, the initial value of the valve opening retention time presetting heating valve are t1, and preset the first preset temperature T0, the second default temperature Degree T1, target control temperature T2 and the 3rd preset temperature T3, wherein T0 ＜ T1 ＜ T2 ＜ T3；
S02, using purified water outlet temperature T of heat exchanger 3 as controlling temperature and detecting in real time, as T, < during T0, heating valve is lasting Open；As T0≤T ＜ T1, heating valve is closed after continuing opening time t1+ Δ t；As T1≤T ＜ T2, heating valve is persistently opened Close after opening time t1；As T > T2 time, close heating valve；As T > T3 time, close the valve opening in heating valve and default step S01 and protect The time initial value of holding is t1-Δ t, and wherein Δ t is time variation amount.
The temperature-controlled process of the sterilizing cabinet of the present invention, uses multiple wise temperature to hold switch and the valve opening of heating valve The continuous time is independently controlled, it is possible to the stationarity of temperature in holding casing 1, it is to avoid temperature overshot or larger fluctuation；And heating Valve duration of valve opening has respective change by variations in temperature, it is possible to make the duration of valve opening of heating valve one reasonably in the range of, Improving the precision controlled further, wherein casing concretely baking oven etc. have the casing of sterilizing demand.
In the present embodiment, in step S02, when T >=T0, after heating valve is closed, under carrying out again after delay time t2 The judgement of temperature, the temperature controlled stationarity of collateral security.Wherein the span of t2 is 1～5s, and in the present embodiment, t2 takes Value 3s.
As in figure 2 it is shown, in the present embodiment, the inlet valve of heat exchanger 3 includes the KV101 in main inlet valve 4(Fig. 2) and pair enter KV102 in steam valve 5(Fig. 2), the present embodiment is then to secondary inlet valve 5(heating valve above) be controlled, due to Being provided with restricting orifice in secondary inlet valve 5 pipeline, flow more main inlet valve 4 is little, and the control to secondary inlet valve 5 is conducive to temperature Constant；Heat exchanger 3 is plate type heat exchanger, and with heat exchanger 3 outlet temperature for controlling target, is examined by temperature sensor 2 Survey, owing to heat exchanger 3 outlet temperature is the highest temperature, it is possible to ensure that temperature controls the constant temperature effect meeting steadily and in baking oven casing 1 More preferably.
In the present embodiment, T3-T1 < 1, additionally the span of Δ t is 0～1s.
Below as a example by 121 DEG C of sterilizings, illustrate temperature-controlled process:
Wherein, plate type heat exchanger 3 outlet temperature is T and as controlling temperature；Heating valve (KV102) ETAD expected time of arrival and departure is t1, be incremented by/passs The time of subtracting is Δ t, and closing the delay time after valve is t2；Sterilizing design temperature (the first preset temperature) is T0, controls low temperature (second Preset temperature) it is T1, target control temperature is T2, and controlling high temperature (the second preset temperature) is T3.It is important that: consider The inertia of temperature, it is proposed that pass valve delay time t2 is set as about 3S (suitably can adjust) according to practical situation.
Arranging t1 initial value is 1S, Δ t be 0.5S, T0 be 121.1 DEG C, T1 is 121.2 DEG C, and T2 is 121.6 DEG C, and T3 is 121.8℃
When plate type heat exchanger 3 outlet temperature T is less than 121.1 DEG C (T0), heating valve is normally opened.
As T >=121.1 DEG C (T0), it is judged that close whether valve time delay t2 terminates, if it has not ended, heating valve closes；If prolonged Time t2 terminate, judge whether T0≤T ＜ T2 meets.If T meets T0≤T ＜ T2, then judges whether T0≤T ＜ T1 meets, as Fruit is unsatisfactory for, and heating valve is closed after opening the t1 time；If meeting T0≤T ＜ T1, heating valve is closed after opening the t1+ Δ t time；Separately Outward, after time delay t2 terminates, it is judged that whether T >=T2 meets, if met, heating valve closes, and additionally closes at T >=T2 and heating valve When judge whether T ＞ T3 meets, if met; valve open period initial value would be set to t1-Δ t, as next time valve open time Between；If being unsatisfactory for T ＞ T3, then without processing, this section of EP (end of program).
Below being only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, should be regarded as the protection of the present invention Scope.

Claims (7)

1. the temperature-controlled process of a sterilizing cabinet, it is characterised in that comprise the following steps:
S01, the initial value of the valve opening retention time presetting heating valve are t1, and preset the first preset temperature T0, the second default temperature Degree T1, target control temperature T2 and the 3rd preset temperature T3, wherein T0 ＜ T1 ＜ T2 ＜ T3；
S02, using purified water outlet temperature T of heat exchanger (3) as controlling temperature and detecting in real time, as T, < during T0, heating valve is held Continuous unlatching；As T0≤T ＜ T1, heating valve is closed after continuing opening time t1+ Δ t；As T1≤T ＜ T2, heating valve is lasting Close after opening time t1；As T > T2 time, close heating valve；As T > T3 time, close the valve opening in heating valve and default step S01 Retention time initial value is t1-Δ t, and wherein Δ t is time variation amount.
The temperature-controlled process of sterilizing cabinet the most according to claim 1, it is characterised in that in step S02, at T >=T0 Time, after heating valve is closed, after delay time t2, carry out the judgement of temperature next time again.
The temperature-controlled process of sterilizing cabinet the most according to claim 2, it is characterised in that the span of described t2 is 1 ～5s.
4. according to the temperature-controlled process of the sterilizing cabinet described in claim 1 or 2 or 3, it is characterised in that described heating valve is for steaming Steam valve, described heat exchanger (3) is plate type heat exchanger.
5. according to the temperature-controlled process of the sterilizing cabinet described in claim 1 or 2 or 3, it is characterised in that described heating valve is secondary Inlet valve (5).
6. according to the temperature-controlled process of the sterilizing cabinet described in claim 1 or 2 or 3, it is characterised in that described T3-T1 < 1.
7. according to the temperature-controlled process of the sterilizing cabinet described in claim 1 or 2 or 3, it is characterised in that the value of described Δ t Scope is 0～1s.
CN201610683551.1A 2016-08-18 2016-08-18 The temprature control method of sterilizing cabinet Active CN106200718B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107096695A (en) * 2017-06-16 2017-08-29 奉化市威优特电器有限公司 A kind of temperature control method of thermosol gelgun
CN109947149A (en) * 2019-03-28 2019-06-28 佛山市百斯特电器科技有限公司 A kind of control method and dish-washing machine of sterilizing lamp
CN113425167A (en) * 2021-08-18 2021-09-24 江苏星星冷链科技有限公司 Heating steady-state temperature control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306032A (en) * 2011-07-28 2012-01-04 宁波市鄞州协成医疗器械有限公司 Heating control method for pressure steam sterilizer
US20140105785A1 (en) * 2012-10-12 2014-04-17 American Sterilizer Company Biological safety cabinet with a falling-film evaporator
CN104107448A (en) * 2013-04-19 2014-10-22 美的集团股份有限公司 Method and device for controlling disinfector
CN105267995A (en) * 2014-07-14 2016-01-27 新骏实业股份有限公司 Stage type steam regulation method used for autoclave
CN105361696A (en) * 2014-09-01 2016-03-02 李高升 Heating control method for glass electric kettle
CN205145192U (en) * 2015-11-28 2016-04-13 江西荣通农业发展有限公司 Intelligent control sterilization system

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
CN102306032A (en) * 2011-07-28 2012-01-04 宁波市鄞州协成医疗器械有限公司 Heating control method for pressure steam sterilizer
US20140105785A1 (en) * 2012-10-12 2014-04-17 American Sterilizer Company Biological safety cabinet with a falling-film evaporator
CN104107448A (en) * 2013-04-19 2014-10-22 美的集团股份有限公司 Method and device for controlling disinfector
CN105267995A (en) * 2014-07-14 2016-01-27 新骏实业股份有限公司 Stage type steam regulation method used for autoclave
CN105361696A (en) * 2014-09-01 2016-03-02 李高升 Heating control method for glass electric kettle
CN205145192U (en) * 2015-11-28 2016-04-13 江西荣通农业发展有限公司 Intelligent control sterilization system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107096695A (en) * 2017-06-16 2017-08-29 奉化市威优特电器有限公司 A kind of temperature control method of thermosol gelgun
CN107096695B (en) * 2017-06-16 2019-03-19 宁波市威优特电器有限公司 A kind of temperature control method of thermosol gelgun
CN109947149A (en) * 2019-03-28 2019-06-28 佛山市百斯特电器科技有限公司 A kind of control method and dish-washing machine of sterilizing lamp
CN113425167A (en) * 2021-08-18 2021-09-24 江苏星星冷链科技有限公司 Heating steady-state temperature control method

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