SE1651741A1

SE1651741A1 - Method for cooling a water bath cover of the research or test device

Info

Publication number: SE1651741A1
Application number: SE1651741A
Authority: SE
Inventors: Evgen'evich Denisov Alexej; Nikulin Igor'Nikolaevich
Original assignee: Obschhestvo S Ogranichennoj Otvetstvennost'ju Biofizicheskaja Apparatura
Priority date: 2014-09-02
Filing date: 2015-04-02
Publication date: 2016-12-23
Also published as: RU2568941C1; SE541677C2; WO2016036272A1; CN106659946A

Abstract

The invention relates to the test and research field. The method for cooling a water bath cover of the research or test device comprising passing a pressurized flow of cold liquid agent through the cover of the water bath of the research or test device as well as discharging this agent. An autonomous liquid cooling unit having a circulating coolant in the closed loop is used to supply a pressurized flow of a cool liquid agent. The flow of a cool liquid agent then passes through a pipe or pipes disposed in a vapor-discharge cavity of the cover or under the cover in the boiling water vapor condensation area providing pressurized discharge of this agent through at least one radiator having a fan of the autonomous liquid cooling unit for subsequent pressurizing the agent cooled in the radiator into the pipe or pipes cavity.(Fig. 1)

Description

Method for cooling a Water bath cover of the research or test device The invention relates to the test and research field and discloses a method forCooling a water bath cover of the research or test device, based on applying materials,compositions or mixtures of the water heating bath for conducting tests or researches.

The present invention is described by a way of a certain example of the researchdevice for crops quality controlling by alpha-amylase activity, which can be used in cerealreceiving points, bake houses, agricultural enterprises, grain processing plants as well as inother processing industries. Such device for crops quality controlling by alpha-amylaseactivity is described in TU 4215-006-172147768-98, the apparatus for determining thenumber of falls, PCP-3. This solution was taken as a prior art to the claimed method.

This research device comprises a water bath disposed within a housing having acover. A level indicator for visual control of water in the bath is mounted on the water bathhousing. The water bath cover comprises the slots to install a cassette with the test tubesand a vapor-discharge cavity having an integrated water cooling loop. To carry out aresearch the water bath is filled with distilled water through a test tube hole and a level ofwater in the bath is checked using the level indicator, mounted on the bath housing andwhich should be disposed in the middle zone of the drain pipe. The test tubes are washed,rinsed by distilled water, dried and installed in the cassettes. The device is plugged in.There is an indicator above the water bath where a tag changes when a desirabletemperature is reached. A weigh of milled grain or ﬂour is added in each test tube which ispoured with distilled water at a room temperature. The test tubes are closed by the rubberstoppers and then they are shaken until a homogeneous suspension. The test tubes with thesuspension (without the rubber stoppers) are mounted on a stand with the cassette andinserted into the slots, configured in the water bath cover. The test tubes with thesuspension are heated in the water bath_that leads to transformation of the suspension into aﬂour paste. Then the rod mixers are immersed in freefall into the test tubes. The rod mixersstart falling down under own weight. The duration of the rod mixer falling down isdetermined by a ﬂour paste viscosity, dependent on alpha-amylase activity, which thins theﬂour paste. Falling down of each rod mixer continues till a response of a respective low-level indicator, which stops track of time on its channel. The time of the rod mixer fallingdown in the gelatinized water and ﬂour suspension is a definable falling down value.

To prevent water from steaming away from the water bath, the water bath cover should be cooled. It is used direct-ﬂow cooling for this purpose. The importance of cooling firstly consists in preventing formation of eXcessive vapor pressure and its vaporizing intoenvironment (a solution for conducting secure eXperiments or researches), secondly inpreserving the initial heating conditions to eliminate heterogeneity of the test tubes heatingalong their height (to provide the equal conditions for different series of eXperiments andresearches of the same material or different materials or suspensions).

HoWever, direct-ﬂoW cooling requires high Water consumption and lacks a coolingdegree control. The eXcessive cooling leads to increasing the time of Water boiling in theWater bath as Well as the Water temperature, and When cooling is not enough, vaporizationis increased that leads to decreasing of the Water volume and requires Water adding.

To ensure maintaining of the Water heating conditions in the Water bath and itsquantity, it is necessary to use a such cooling system Which can be controlled by atemperature in synchronization With the Water volume in the Water bath, Which allows tomaintain a boiling process With a sharp decrease of its consumption (except naturalvaporizing/drying, independent from vaporization process).

The present invention relates to a technical effect achievement Which involvesimproving of Water independence and efficient resource using by eliminating the need foradding Water into the Water bath and increasing a cooling degree control Withsynchronization of the Water boiling process in this bath.

The specified technical result is achieved by a method for cooling a Water bathcover of the research or test device comprising passing a pressurized vapor of cold liquidagent through the cover of the Water bath of the research or test device as Well asdischarging this agent. This method provides an autonomous liquid cooling unit having arecirculating coolant to supply a pressurized flow of a cool liquid agent, and the ﬂoW of acool liquid agent then passes through a pipe or pipes disposed in a vapor-discharge cavityof the cover or under the cover in the boiling Water vapor condensation area providingpressurized discharge of this agent through at least one radiator having a fan of theautonomous liquid cooling unit for subsequent pressurizing the agent cooled in the radiatorinto the pipe or pipes cavity.

The specified features are significant and relate to formation of a stablecombination of essential features, sufficient to achieve the required technical effect.

The present invention is illustrated by the certain embodiments Which however arenot limited but demonstrate a possibility to achieve the required technical effect.

Fig.l is a block diagram of the cooling system of the Water bath cover of the research or test device.

This invention describes an energy and Water saving method for cooling the Waterbath cover of the research or_test device. This method allows to control the maintainingprocess of Water boiling in the Water bath of the device by synchronizing a cooling degreeand Water boiling process in the enclosed volume.

The method for cooling a Water bath cover of the research or test device comprisespassing a pressurized ﬂoW of cold liquid agent through the cover of the Water bath of theresearch or test device as Well as discharging this agent. An autonomous liquid cooling unithaving a recirculating coolant is used to supply a pressurized ﬂoW of a cool liquid agent.

The ﬂoW of cool liquid agent passes through the pipe or pipes disposed in a vapor-cavity of the cover or under the cover in the boiling Water vapor condensation areaproviding pressurized discharge of this agent through at least one radiator having a fan ofthe autonomous liquid cooling unit to use the cooled agent, Which has passed through theradiator, for subsequent pressurizing of the pipe or pipes cavity of the cover.

The method is illustrated by an example of a certain device for crops qualitycontrolling by alpha-amylase activity.

The device for crops quality controlling by alpha-amylase activity comprises a casehaving a Water bath l in a housing With a cover 2, the Water bath is disposed in the frontportion of the housing. The Water bath is a reservoir With the cover Which hermeticallycloses its top, in the bottom of Which are mounted the rod heating elements 3 associatedWith the system of their heating. A level indicator (not shown) of Water in the bathmounted on the Water bath housing for visual controlling. The Water bath cover 2comprises the slots to install the cassettes 4 With the test tubes 5 and the rod-miXers 6therein. A vapor-discharge cavity 7 is formed in the cover With an integrated Water coolingloop 8 in the form of a coil. Such coil can be mounted under the cover in the phasetransformation area of Water vapor into the droplets. An indicator for visual Watertemperature control in the Water bath is disposed above the Water bath and comprises a tag,Which changes When a desirable temperature is reached.

To carry out a research or experiment the Water bath is filled With distilled Waterthrough a test tube hole. A Water level in the bath is checked by the level indicator,mounted on the bath housing, Which is disposed in the middle zone of the drain pipe.

The test tubes are Washed, rinsed by distilled Water, dried and installed in thecassettes. A Weigh of milled grain or ﬂour is added in each test tube and it is poured bydistilled Water at a room temperature. The test tubes are closed by the rubber stoppers and they are shaken until a homogeneous suspension. The test tubes With the suspension (Without the rubber stoppers) are mounted on a stand with the cassette and inserted into theslots, configured in the water bath cover. The test tubes with the suspension are heated inthe water bath that leads to transformation of the suspension into a ﬂour paste. Then therod-n1ixers are captured. The device structure provides an automatic capture of the rodmixers and their release by a control unit command. The grips release the rod mixers bythe command of a high-level indicator. Then the rod mixers start falling down under theirown Weight. The duration of the rod mixer falling down is determined by a ﬂour pasteviscosity, dependent on alpha-amylase activity, which thins the ﬂour paste. Falling downof each rod mixer continues till a response of a respective low-level indicator, which stopstrack of time on its channel. The time of falling down of the rod mixer in the gelatinizedwater and ﬂour suspension is a definable falling down value.

To prevent water from steaming away from the water bath, the water bath cover iscooled. The vapor-discharge cavity 7 and the integrated therein water cooling loop 8 aremounted on the water bath cover.

The device further comprises an autonomous cooling unit 9 mounted in the backportion of the housing and comprising at least one radiator 10 with at least one fan 11 and apump 12 of the non-submersible type communicating with the water bath cover throughthe water cooling loop 8 integrated into the vapor-discharge cavity 7 and providing cooledwater recirculation. The integrated autonomous cooling unit comprises the radiator withthe fans, for example, three in number, and the pump of the non-submersible type mountedin the housing 1. Water passes through the radiator cooled by the high speed fans. Theautonomous cooling unit is connected to the water bath cover via the water cooling loop 8integrated into the vapor-discharge cavity providing cooled water recirculation.

Using the autonomous cooling unit which supplies pressurized cooling liquid intothe vapor-discharge cavity (formed as a separate chamber in the cover or directly under thecover) ensures water vapor cooling above a boiling water level (under the cover, in thenatural transition zone of water vapor into the water droplets) and dropping these dropletsinto the boiling water layer in the reservoir. A proper regulation of the cooling degree withrespect to a vapor volume provides continuous circulation of water in the reservoir withoutreleasing vapor through the vapor-discharge system or pressure relief dump valve. Thus, aconstant volume of water at a detern1ined level will be maintained in the water bath, whichensures ﬂowing water over the test tubes along entire height of the suspension. Using theautonomous liquid cooling unit with a coolant recirculation allows eliminating a need for external supply of the coolant. Since the research or test devices operate in the stationary 4 conditions and generally in the closed rooms, one or more fans and radiators in the unitprovide cooling of a Working agent_in the closed loop even under adverse operationalconditions. A closed loop system allows regulating a cooling level of the Working agent ofthe device to synchronize a Water vapor cooling process and bring it to vapor condensationdirectly under the cover.

Using the suggested method allows to improve a technical problem solution bymanufacturing a Water independent and resource saving device that ensures saving Water inamounts up to 1000 liters/day per a device. It autonomously operates in agriculturallaboratory conditions. Moreover, this method can be implemented by a device comprisingthe structural elements manufacturing of Which is not difficult for a person skilled in the art.

Claims

1. The method for Cooling a Water bath cover of the research or test device comprisingpassing a pressurized ﬂoW of cold liquid agent through the cover of the Water bath of theresearch or test device and discharge of this agent, characterized in that an autonomousliquid cooling unit having a recirculating coolant is used to supply a pressurized ﬂoW of acool liquid agent, and the ﬂoW of cold liquid agent is passed through the pipe or pipesdisposed in a vapor-discharge cavity of the cover or under the cover in the boiling Watervapor condensation area providing pressurized discharge of this agent through at least oneradiator having a fan of the autonomous liquid cooling unit for subsequent pressurizing the agent cooled in the radiator into the pipe or pipes cavity.