CN115165153A - Automatic device for freezing water three-phase point bottle ice sleeve by using liquid nitrogen and using method - Google Patents
Automatic device for freezing water three-phase point bottle ice sleeve by using liquid nitrogen and using method Download PDFInfo
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- CN115165153A CN115165153A CN202210519735.XA CN202210519735A CN115165153A CN 115165153 A CN115165153 A CN 115165153A CN 202210519735 A CN202210519735 A CN 202210519735A CN 115165153 A CN115165153 A CN 115165153A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 202
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 239000007788 liquid Substances 0.000 title claims abstract description 102
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 101
- 238000007710 freezing Methods 0.000 title claims abstract description 95
- 230000008014 freezing Effects 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 54
- 239000007924 injection Substances 0.000 claims abstract description 54
- 238000005485 electric heating Methods 0.000 claims description 22
- 239000005457 ice water Substances 0.000 claims description 17
- 239000004642 Polyimide Substances 0.000 claims description 13
- 229920001721 polyimide Polymers 0.000 claims description 13
- 229910052755 nonmetal Inorganic materials 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 8
- 239000000806 elastomer Substances 0.000 description 8
- 235000009161 Espostoa lanata Nutrition 0.000 description 3
- 240000001624 Espostoa lanata Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002151 riboflavin Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000002627 tracheal intubation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000155 isotopic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/002—Calibrated temperature sources, temperature standards therefor
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Abstract
The invention relates to an automatic device for freezing a three-phase bottle ice sleeve for producing water by using liquid nitrogen and a using method thereof, the automatic device comprises a display PLC (programmable logic controller) 99 and a freezing point constant temperature container, wherein a first rotating mechanism, a first lifting mechanism, a lower clamping mechanism, an upper clamping mechanism, a second lifting mechanism and a butt clamping mechanism are arranged in an inner cavity of the freezing point constant temperature container, the second rotating mechanism and a third lifting mechanism are arranged outside the freezing point constant temperature container, and the automatic device also comprises a water container 42, a water injection pipe, a flowmeter 41, an electromagnetic valve 40, a medical liquid nitrogen gun 49, a liquid nitrogen opening and closing mechanism and a liquid nitrogen injection pipe. The technical scheme can replace the whole process of manually freezing and making ice by using liquid nitrogen, so that the freezing quality and efficiency are obviously improved, and the danger of freezing injury of operators is effectively prevented; fills the blank of the automatic device and the method for freezing the water three-phase point bottle ice sleeve by using liquid nitrogen.
Description
Technical Field
The invention belongs to the technical field of freezing water making three-phase point bottle ice sleeves, and particularly relates to an automatic device for freezing a water making three-phase point bottle ice sleeve by using liquid nitrogen and a using method of the automatic device.
Background
The water triple point is the only reference point for defining thermodynamic temperature unit, the reproduction of the water triple point is realized by freezing the ice sleeve in the water triple point bottle, and the freezing method of the ice sleeve is as follows: a frozen salt mixing method, a dry ice freezing method, a liquid nitrogen refrigeration method, a liquid nitrogen cooling copper rod method and the like. Most of the above methods require careful operation by experienced operators to be safely and accurately accomplished, for example: when freezing with liquid nitrogen, an operator puts a precooled water three-phase point bottle into a Dewar bottle filled with crushed ice, slowly pours the liquid nitrogen into a thermometer intubation tube, and because the freezing speed is very low (reaching about-196 ℃) and the liquid nitrogen is very high, the problems of uneven thickness of an ice sleeve, ice bridge generation and the like often occur, the operator needs to carefully observe careful operation and control the injection amount of the liquid nitrogen, and simultaneously, a straight rod with a cotton ball is used for slowly and repeatedly pulling the cotton ball up and down from the bottom of the thermometer intubation tube from bottom to top so as to diffuse the liquid nitrogen to ensure that the outer surface of the ice sleeve is smooth and uniform in thickness, and finally, the inner wall of the ice sleeve and the outer wall of the thermometer intubation tube need to rotate.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides an automatic device for freezing a three-phase point bottle ice sleeve by using liquid nitrogen and a using method thereof.
To solve the technical problems, the technical scheme of the invention is as follows:
an automatic device for freezing a three-phase freezing point bottle ice sleeve for producing water by using liquid nitrogen comprises a display PLC controller, a base and a freezing point constant temperature container arranged on the base;
a first rotating mechanism, a horizontal connecting rod, a first lifting mechanism, a lower clamping mechanism, a vertical rod, an upper clamping mechanism, a second lifting mechanism and a butt-clamping mechanism are fixedly arranged in an inner cavity of the freezing point constant-temperature container;
the first rotating mechanism comprises a fixed part XZY and a rotating part XZY, the fixed part XZY is fixedly connected with the freezing point thermostatic container, the axis of a rotating central shaft of the rotating part XZY is a vertical line, the top of the rotating part XZY is fixedly provided with a non-metal horizontal plate, and the center of the non-metal horizontal plate is provided with a contact switch A;
the first lifting mechanism comprises a fixed part SJY and a lifting part SJY, the first end of the horizontal connecting rod is fixedly connected with the rotating part XZY of the first rotating mechanism, and the second end of the horizontal connecting rod is fixedly connected with the fixed part SJY of the first lifting mechanism; the lower clamping mechanism is fixedly arranged at the top of the lifting part SJY of the first lifting mechanism, and the clamping central line of the lower clamping mechanism is superposed with the rotating central shaft of the rotating part XZY of the first rotating mechanism; the lower end of the vertical rod is fixed at the top of the lower clamping mechanism, the upper clamping mechanism is fixedly arranged at the top of the vertical rod, and the clamping center line of the upper clamping mechanism is superposed with the clamping center line of the lower clamping mechanism; flexible contact pads are arranged on the clamping surfaces of the lower clamping mechanism and the upper clamping mechanism, and a micro pressure sensor is arranged in each flexible contact pad;
the second lifting mechanism comprises a fixing part SJR and a lifting part SJR, the fixing part SJR is fixedly connected with the freezing point constant temperature container, the opposite clamping mechanism is fixedly arranged at the top of the lifting part SJR, the clamping center line of the opposite clamping mechanism is superposed with the rotating center shaft of the rotating part XZY of the first rotating mechanism, a pair of clamping jaws of the opposite clamping mechanism are arc-shaped plates C (96), and an electric heating belt and a contact switch B are arranged on the clamping surface of each arc-shaped plate C (96);
the vertical rod is provided with a camera A and a camera B, the camera A is close to the lower clamping mechanism, and the camera B is close to the upper clamping mechanism; a pair of clamping arms of the opposite clamping mechanism are respectively provided with 1 camera C;
the freezing point constant temperature device also comprises a second rotating mechanism, a third lifting mechanism, a water injection pipe and a liquid nitrogen injection pipe which are arranged outside the freezing point constant temperature container;
the second rotating mechanism comprises a fixed part XZR and a rotating part XZR, the fixed part XZR is fixedly connected with the base, and a rotating central axis LX of the rotating part XZR is a vertical line;
the third lifting mechanism comprises a fixing part SJS and a lifting part SJS, the fixing part SJS is fixedly arranged at the top of a rotating part XZR of the second rotating mechanism, the water injection pipe and the liquid nitrogen injection tank are fixedly connected with the lifting part SJS of the third lifting mechanism, the water injection pipe is communicated with the water container through an electromagnetic valve and a flowmeter, the water injection pipe comprises a vertical part of the water injection pipe, the bottom end of the vertical part of the water injection pipe is a water outlet, and the lower part of the vertical part of the water injection pipe is provided with a camera D; the liquid nitrogen injection pipe is communicated with the medical liquid nitrogen gun and comprises a vertical pipe, a liquid nitrogen outlet is formed in the bottom end of the vertical pipe, a camera E is arranged at the upper part of the vertical pipe, and a liquid nitrogen opening and closing mechanism is used for pressing a switch button of the medical liquid nitrogen gun;
the central axis of the vertical part of the water injection pipe is LZ, the central axis of the vertical pipe is LD, LX, LZ and LD are parallel to each other, the plane formed by LX and LZ is set as MS plane, the plane formed by LX and LD is set as MD plane, and the MS plane are perpendicular to each other;
the actions of the first rotating mechanism, the first lifting mechanism, the lower clamping mechanism, the upper clamping mechanism, the second lifting mechanism, the butt-clamping mechanism, the second rotating mechanism, the third lifting mechanism, the electromagnetic valve, the flowmeter, the liquid nitrogen opening and closing mechanism and the electric heating belt are all controlled by the display PLC controller, and the camera A, the camera B, the camera C, the camera D, the camera E, the contact switch A, the contact switch B and the flowmeter are all connected with the display PLC controller.
Further, the first rotating mechanism comprises a vertical axis servo motor A, the vertical axis servo motor A comprises a motor body A and a vertical motor shaft A, the motor body A is fixedly connected with the freezing point constant temperature container, a flange plate F is fixedly arranged at the top of the vertical motor shaft A, and the flange plate F is fixedly connected with the nonmetal horizontal plate;
the second rotating mechanism comprises a vertical shaft servo motor B, the vertical shaft servo motor B comprises a motor body B and a vertical shaft B, the motor body A is fixedly connected with the base, a flange plate H is fixedly arranged at the top of the vertical shaft B, and the flange plate H is fixedly connected with a fixing part SJS of the third lifting mechanism.
Furthermore, the first lifting mechanism comprises a vertical electric telescopic rod A, the vertical electric telescopic rod A comprises a telescopic rod body A, a telescopic end A and an electric telescopic rod servo motor A, the telescopic end A is driven by the electric telescopic rod servo motor A, and the telescopic rod body A is fixedly connected with the second end of the horizontal connecting rod;
the second lifting mechanism comprises a vertical electric telescopic rod C, the vertical electric telescopic rod C comprises a telescopic rod body C, a telescopic end C and an electric telescopic rod servo motor C, the telescopic end C is driven by the electric telescopic rod servo motor C, and the telescopic rod body C is fixedly connected with the freezing point constant-temperature container;
the third lifting mechanism comprises a vertical electric telescopic rod D, the vertical electric telescopic rod D comprises a telescopic rod body D, a telescopic end D and an electric telescopic rod servo motor, the telescopic end D is driven by the electric telescopic rod servo motor, and the telescopic rod body D is fixedly connected with a rotating portion XZR of the second rotating mechanism.
Further, the lower clamping mechanism comprises a double-output-shaft screw rod shaft servo motor A, a fixed light bar sleeve A and a light bar A, and the light bar A is fixedly connected with the fixed light bar sleeve A; the double-output-shaft screw shaft servo motor A and the fixed polish rod sleeve A are fixedly connected with a lifting part SJY of the first lifting mechanism, the double-output-shaft screw shaft servo motor A coaxially drives a pair of screw shafts A, the thread turning directions of the screw shafts A are opposite, the screw shafts A are respectively screwed with a screw nut moving block A, the two screw nut moving blocks A are respectively and fixedly connected with a lower horizontal moving rod A, and the two lower horizontal moving rods A are respectively and fixedly connected with an arc-shaped plate A; the two nut moving blocks A and the light bar A form a moving pair respectively;
the upper clamping mechanism comprises a double-output-shaft screw rod shaft servo motor B, a fixed feed rod sleeve B and a feed rod B, and the feed rod B is fixedly connected with the fixed feed rod sleeve B; the double-output-shaft lead screw shaft servo motor B and the fixed feed lever sleeve B are both fixedly connected with the vertical rod, the double-output-shaft lead screw shaft servo motor B drives a pair of lead screw shafts B, the thread turning directions of the pair of lead screw shafts B are opposite, the pair of lead screw shafts B are respectively screwed with a lead screw moving block B, the two lead screw moving blocks B are respectively and fixedly connected with an upper horizontal moving rod B, and the two upper horizontal moving rods B are respectively and fixedly connected with an arc-shaped plate B; the two nut moving blocks B and the light bar B form a moving pair respectively;
the butt-clamping mechanism comprises a double-output-shaft screw shaft servo motor C, a fixed feed rod sleeve C and a feed rod C, and the feed rod C is fixedly connected with the fixed feed rod sleeve C; the double-output-shaft screw shaft servo motor C and the fixed polish rod sleeve C are fixedly connected with a lifting part SJR of the second lifting mechanism, the double-output-shaft screw shaft servo motor C drives a pair of screw shafts C, the thread turning directions of the pair of screw shafts C are opposite, the pair of screw shafts C are respectively screwed with a screw moving block C, the two screw moving blocks C are respectively and fixedly connected with a horizontal moving rod C, and the two horizontal moving rods C are respectively and correspondingly and fixedly connected with an arc-shaped plate C (96); the two nut moving blocks C respectively form a moving pair with the light bar C.
Further, still include fourth elevating system, fourth elevating system includes fixed part SJSI and lift SJSI, fixed part SJSI with freezing point constant temperature container fixed connection, lift SJSI with first rotary mechanism's fixed part XZY fixed connection.
Further, fourth elevating system includes perpendicular electric telescopic handle B, and perpendicular electric telescopic handle B includes telescopic link body B, flexible end B and electric telescopic handle servo motor B, and flexible end B's action is driven by electric telescopic handle servo motor B, telescopic link body B with freezing point constant temperature container fixed connection, the fixed ring flange G that is equipped with in top of flexible end B, ring flange G with first rotary mechanism's fixed part XZY fixed connection.
Furthermore, the freezing point constant temperature container comprises a freezing point water tank, the freezing point water tank comprises a lower equipment layer and an upper water tank, a micro refrigerator and a condenser are arranged in the lower equipment layer, the upper water tank is used for containing ice water, the upper water tank is composed of a water tank inner wall and an ice point water tank bottom, a refrigerating pipe is fixedly arranged at the ice point water tank bottom, and the refrigerating pipe is communicated with the micro refrigerator through a refrigerating fluid conveying pipe; the outside of upper portion basin is equipped with the heat preservation, is equipped with temperature sensor in the inner chamber of upper portion basin, and temperature sensor, micro-refrigerator and condenser all with show the PLC controller and link to each other.
Further, the liquid nitrogen starting and stopping mechanism is a miniature electric cylinder, a flange plate D is fixedly arranged at the top of a lifting part SJS of the third lifting mechanism, the medical liquid nitrogen gun is fixedly connected with the flange plate D, the miniature electric cylinder is fixed on a handle of the medical liquid nitrogen gun, and a telescopic part of the miniature electric cylinder is used for pressing a switch button of the medical liquid nitrogen gun.
Furthermore, a polyimide fiber elastic body is arranged at the bottom of the vertical pipe, an upper convex flow guide body is arranged at the bottom of the polyimide fiber elastic body, and the maximum outer diameter of the upper convex flow guide body is equivalent to the inner diameter of the outer wall of the thermometer trap of the water triple-point bottle.
The use method of the automatic device for freezing the ice sleeve of the water three-phase point bottle by using liquid nitrogen comprises the following steps:
s1: the starting device enables each electric control component to enter a work preparation state;
s2: adding ice water into the freezing point constant temperature container, starting the freezing point constant temperature container, and setting the temperature to be the freezing point temperature;
s3: when the temperature of ice water in the freezing point constant temperature container is in accordance with the set state, displaying that the PLC controller sends out prompt tones and subtitles for freezing the ice cover;
s4: the manual forceps vertically place the precooled water triple point bottle into ice water of the freezing point constant temperature container, after the bottom of the water triple point bottle touches a contact switch A at the center of the nonmetal horizontal plate, the lower clamping mechanism and the upper clamping mechanism are started to act so as to clamp the periphery of the water triple point bottle, when the pressure value of the miniature pressure sensor in the flexible contact pad reaches a programmed set value, the lower clamping mechanism and the upper clamping mechanism stop acting, and at the moment, the manual forceps are not required to continue to hold the water triple point bottle;
s5: controlling the third lifting mechanism to ascend to the upper position, and controlling the second rotating mechanism to act so that the vertical pipe rotates to a position right above a thermometer socket of the water three-phase point bottle; controlling the third lifting mechanism to descend, displaying images sent by the PLC according to the camera A, the camera B, the camera C and the camera E to timely control the descending speed and distance of the third lifting mechanism, and controlling the third lifting mechanism to stop acting when the lower end of the vertical pipe finally reaches the bottom of the thermometer well through the thermometer socket;
s6: controlling a liquid nitrogen starting and stopping mechanism to press a switch button of the medical liquid nitrogen gun to enable liquid nitrogen to enter a thermometer well of the water three-phase point bottle through a liquid nitrogen injection pipe;
s7: the display PLC controller monitors the growth image condition of the ice sleeve according to the camera A, the camera B and the camera C, and then timely controls the lifting of the liquid nitrogen opening and closing mechanism and the third lifting mechanism, so that the injection amount and the injection time of liquid nitrogen and the up-and-down movement of the lower end of the vertical pipe all accord with the programming setting, and the wall thickness, the appearance smoothness and the like generated by the ice sleeve are ensured to accord with the requirements;
s8: if the image transmitted by the camera shows signs or an 'ice bridge' appears, the display PLC controller controls the second lifting mechanism to drive the butt-clamping mechanism to ascend to a height position generated by the 'ice bridge', then controls the butt-clamping mechanism to drive the electric heating belt 97 to clamp the periphery of the water three-phase point bottle together, and controls the electric heating belt to heat after the water three-phase point bottle touches the contact switch B so as to heat the periphery of the water three-phase point bottle; after a period of time, controlling the butt-clamping mechanism to loosen the water triple-point bottle, simultaneously controlling the first rotating mechanism to rotate 90 degrees, and then controlling the butt-clamping mechanism to clamp the periphery of the water triple-point bottle so that the periphery at the height can contact with the heat of the electric heating belt; after the electric heating belt is rotated and heated repeatedly for several times, the ice bridge is eliminated, the second lifting mechanism is controlled to drive the opposite clamping mechanism to recover to the initial state, and the electric heating belt stops heating;
if the position generated by the ice bridge is positioned at the clamping position of the lower clamping mechanism or the upper clamping mechanism, the display PLC controller controls the corresponding clamping mechanism to release the clamping of the water three-phase point bottle;
s9: the display PLC controller judges that the frozen ice sleeve with the thickness and the uniformity and without cracks meeting the requirements enters an 'internal melting' program according to the camera image, controls and controls the third lifting mechanism to ascend to the upper position, and controls the second rotating mechanism to act so that the vertical part of the water injection pipe rotates to be right above the thermometer socket of the water three-phase point bottle; controlling the electromagnetic valve to act, so that the normal-temperature water in the water container (42) finally enters a thermometer well of the water three-phase point bottle through the flowmeter (41), and displaying that the PLC controls the electromagnetic valve to act and close the water flow when the numerical value of the flowmeter (41) reaches a programmed specified value;
s10: the display PLC controller controls the first rotating mechanism to drive the water triple point bottle to rotate repeatedly at an angle of plus or minus 45 degrees, when the display PLC controller finds that the rotation of the ice sleeve and the rotation of the water triple point bottle are asynchronous according to the image of the camera, it is judged that a layer of ice water interface is formed between the inner wall of the ice sleeve and the outer wall of the thermometer well, at the moment, the display PLC controller controls the first rotating mechanism to stop working, then the lower clamping mechanism and the upper clamping mechanism are controlled to act, the clamping of the water triple point bottle is released, and meanwhile prompt tones and captions are sent out to indicate that the ice sleeve is frozen and taken away.
The invention can achieve the following beneficial effects: the technical scheme can replace the whole process of manually freezing and making ice by using liquid nitrogen, so that the freezing quality and efficiency are obviously improved, and the danger of freezing injury of operators is effectively prevented; fills the blank of the automatic device and the method for freezing the water three-phase point bottle ice sleeve by using liquid nitrogen.
Drawings
FIG. 1 is a front cross-sectional view of an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a state diagram of the ice freezing sleeve and the ice bridge elimination in an embodiment of the present invention;
FIG. 5 is a diagram illustrating a water-filling internal-melting state according to an embodiment of the present invention;
FIG. 6 is a view of an embodiment of the present invention with the elastomer inserted into or removed from the thermometer well;
FIG. 7 is a state diagram of a three-phase point bottle to be taken away after freezing of the ice cover in the embodiment of the invention;
FIG. 8 is an enlarged view of section A-A of FIG. 2;
FIG. 9 is a control schematic in an embodiment of the present invention;
in the figure: 1-cushion block, 2-rigid base plate, 3-landing leg, 4-bottom plate, 5-freezing point water tank, 6-micro refrigerator, 7-refrigerant liquid conveying pipe, 8-water outlet, 9-water nut, 10-water conduit, 11-refrigerant pipe, 12-freezing point water tank bottom, 13-electric telescopic rod servo motor A, 14-horizontal connecting rod, 15-fixed sleeve A, 16-vertical electric telescopic rod A, 17-telescopic end A, 18-horizontal water translation rod A, 19-flange plate A, 20-support plate A, 21-fixed light lever sleeve A, 22-light lever A, 23-screw shaft A, 24-double-output-shaft screw shaft servo motor A, 25-flange plate B, 26-camera A, 27-vertical rod, 28-camera B, 29-supporting plate B, 30-flange plate C, 31-fixed light lever sleeve B, 32-light lever B, 33-screw shaft B, 34-double-output-shaft screw shaft servo motor B, 35-upper horizontal moving rod B, 36-water outlet, 37-camera D, 38-water injection pipe vertical part, 39-water injection pipe gradient part, 40-electromagnetic valve, 41-flowmeter, 42-water container, 43-fixing seat A, 44-liquid nitrogen delivery pipe, 45-liquid nitrogen nozzle, 46-liquid nitrogen injection port, 47-sleeve C, 48-vertical pipe, 49-medical liquid nitrogen gun, 50-fixing seat B, 51-supporting plate D, 52-flange plate D, 53-telescopic end D, 54-thermometer socket, 55-water triple point bottle, 56-ice block, 57-insulating layer, 58-water tank inner wall, 59-ice water, 60-horizontal moving rod C, 61-camera C, 62-double output shaft screw rod shaft servo motor C, 63-screw rod shaft C, 64-optical rod C, 65-fixed optical rod sleeve C, 66-supporting plate C, 67-flange E, 68-telescopic end C, 69-high purity water, 70-ice sleeve, 71-ice water interface, 72-thermometer trap outer wall, 73-polyimide fiber elastomer, 74-upper convex flow guide body, 75-buffer pad, 76-nonmetal horizontal plate, 77-contact switch A, 78-flange F, 79-fixed sleeve B, 80-key A, 81-vertical motor shaft A, 82-vertical shaft servo motor A, 83-electric telescopic rod servo motors C, 84-flange plates G, 85-telescopic ends B, 86-vertical electric telescopic rods B, 87-electric telescopic rod servo motors B, 88-condensers, 89-nut moving blocks B, 90-flexible contact pads, 91-arc plates B, 92-fixed seat supporting plates, 93-handles, 94-miniature electric cylinders, 95-temperature sensors, 96-arc plates C, 97-electric heating belts, 98-nut moving blocks C, 99-display PLC controllers, 100-shutters, 101-cameras E, 102-vertical axis servo motors B, 103-flange plates H, 104-electric telescopic rod servo motors D, 105-vertical electric telescopic rods D, 106-rigid connecting frames, 107-keys B, 108-nut moving blocks A, 109-vertical electric telescopic rods C, 110-vertical shafts B, 111-contact switches B.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
The water triple point bottle 55 is a sealed glass container filled with high purity water 69 (the isotopic composition of water is equivalent to that of sea water) and generally includes a thermometer well having a thermometer socket 54 at the top and a buffer pad 75 at the bottom.
The utility model provides an automatic device with liquid nitrogen freezing system water three-phase point bottle ice cover, includes demonstration PLC controller 99, base and the freezing point constant temperature container of setting on the base, shows that PLC controller 99 sets up on the side of freezing point constant temperature container, contains control program and image analysis software in the demonstration PLC controller 99.
The base comprises a rigid substrate 2, and a plurality of cushion blocks 1 are arranged at the bottom of the rigid substrate 2.
The freezing point constant temperature container comprises a freezing point water tank 5, a bottom plate 4 of the freezing point water tank 5 is provided with a plurality of supporting legs 3, and the supporting legs 3 are fixed on a rigid base plate 2 of the base; the freezing point water tank 5 comprises a lower equipment layer and an upper water tank, wherein a micro refrigerator 6 and a condenser 88 are arranged in the lower equipment layer, a shutter 100 is arranged on the side surface of the outer wall of the lower equipment layer, and the shutter 100 is close to the condenser 88 and the micro refrigerator 6; the upper water tank is used for containing ice water 59 and consists of a water tank inner wall 58 and an ice point water tank bottom 12, the refrigerating pipe 11 is welded at the ice point water tank bottom 12, and the refrigerating pipe 11 is communicated with the micro refrigerator 6 through a refrigerating fluid conveying pipe 7; the outer part of the upper water tank is provided with a heat preservation layer 57, the inner cavity of the upper water tank is provided with a temperature sensor 95, and the temperature sensor 95 is fixed on the vertical rod 27; the bottom of the upper water tank is provided with a water conduit 10, a water outlet 8 of the water conduit 10 penetrates through the heat insulation layer 57 and is exposed outside the freezing point water tank 5, a water discharging nut 9 is arranged at the water outlet 8, and water is discharged from the upper water tank by screwing the water discharging nut 9.
A first rotating mechanism, a horizontal connecting rod 14, a first lifting mechanism, a lower clamping mechanism, a vertical rod 27, an upper clamping mechanism, a second lifting mechanism, a butt-clamping mechanism and a fourth lifting mechanism are fixedly arranged in an inner cavity of an upper water tank of the freezing point constant temperature container.
The fourth lifting mechanism comprises a vertical electric telescopic rod B86, the vertical electric telescopic rod B86 comprises a telescopic rod body B, a telescopic end B85 and an electric telescopic rod servo motor B87, the telescopic end B85 is driven by the electric telescopic rod servo motor B87, the telescopic rod body B is fixedly installed at the center of the upper surface of the bottom 12 of the ice-point water tank, and a flange plate G84 is fixedly arranged at the top of the telescopic end B85.
The first rotating mechanism comprises a vertical axis servo motor A82, the vertical axis servo motor A82 comprises a motor body A and a vertical motor shaft A81, the axis of the rotation center shaft of the vertical motor shaft A81 is a vertical line, the motor body A is fixedly connected with a flange G84 of the fourth lifting mechanism, a flange F78 is fixedly arranged at the top of the vertical motor shaft A81, the flange F78 is fixedly connected with the nonmetal horizontal plate 76, and a contact switch A77 is arranged at the center of the nonmetal horizontal plate 76.
The first lifting mechanism comprises a vertical electric telescopic rod A16, the vertical electric telescopic rod A16 comprises a telescopic rod body A, a telescopic end A17 and an electric telescopic rod servo motor A13, and the action of the telescopic end A17 is driven by the electric telescopic rod servo motor A13; the top of the telescopic end A17 is fixedly provided with a flange A19, and the flange A19 is fixedly provided with a supporting plate A20.
The first end of the horizontal connecting rod 14 is welded with a fixed sleeve B79, and the fixed sleeve B79 is fixedly connected with a vertical motor shaft A81 of the first rotating mechanism through a key A80; the second end of the horizontal connecting rod 14 is welded with a fixed sleeve A15, and the fixed sleeve A15 is fixedly connected with the telescopic rod body A of the first lifting mechanism.
The lower clamping mechanism comprises a double-output-shaft screw shaft servo motor A24, a fixed polish rod sleeve A21 and a polish rod A22, the polish rod A22 is fixedly connected with the fixed polish rod sleeve A21, and the double-output-shaft screw shaft servo motor A24 and the fixed polish rod sleeve A21 are both fixedly connected with a supporting plate A20 of the first lifting mechanism; the double-output-shaft lead screw shaft servo motor A24 coaxially drives a pair of lead screw shafts A23, the thread turning directions of the pair of lead screw shafts A23 are opposite, the pair of lead screw shafts A23 are respectively screwed with a nut moving block A108, the two nut moving blocks A108 are respectively and fixedly connected with a lower horizontal moving rod A18, and the two lower horizontal moving rods A18 are respectively and fixedly connected with an arc-shaped plate A; the two nut moving blocks A108 and the light bar A22 form a moving pair respectively; the two arc plates A form a clamping part of the lower clamping mechanism, and the clamping center lines of the two arc plates A are superposed with the central axis of a vertical motor shaft A81 of the first rotating mechanism; under the drive of the double-output-shaft lead screw shaft servo motor A24, the two nut moving blocks A108 move in opposite directions or in a back-to-back direction, so that the two arc-shaped plates A are driven to clamp or release the water triple-point bottle 55; and a flange B25 is fixedly arranged at the top of the double-output-shaft screw rod shaft servo motor A24.
The lower end of the vertical rod 27 is fixedly connected with the flange B25, the upper end of the vertical rod 27 is fixedly provided with a flange C30, and the flange C30 is fixedly provided with a supporting plate B29.
The upper clamping mechanism comprises a double-output-shaft screw shaft servo motor B34, a fixed light lever sleeve B31 and a light lever B32, and the light lever B32 is fixedly connected with the fixed light lever sleeve B31; a double-output-shaft screw rod shaft servo motor B34 and a fixed smooth lever sleeve B31 are both fixedly connected with a supporting plate B29; the double-output-shaft lead screw shaft servo motor B34 drives a pair of lead screw shafts B33, the thread turning directions of the pair of lead screw shafts B33 are opposite, the pair of lead screw shafts B33 are respectively screwed with a nut moving block B89, the two nut moving blocks B89 are respectively and fixedly connected with an upper horizontal moving rod B35, and the two upper horizontal moving rods B35 are respectively and fixedly connected with an arc-shaped plate B91; the two nut moving blocks B89 and the light bar B32 form a moving pair respectively; the two arc plates B91 form a clamping part of the upper clamping mechanism, the clamping center lines of the two arc plates B91 are superposed with the central axis of the vertical motor shaft A81 of the first rotating mechanism, and the clamping principle is the same as that of the upper clamping mechanism.
All be equipped with flexible touch pad 90 on the clamping face of fixture's the arc down and last fixture's arc, flexible touch pad 90 is inside to be equipped with miniature pressure sensor.
The vertical rod 27 is provided with a camera A26 and a camera B28, the camera A26 is close to the lower clamping mechanism, and the camera B28 is close to the upper clamping mechanism.
The second lifting mechanism comprises a vertical electric telescopic rod C109, the vertical electric telescopic rod C109 comprises a telescopic rod body C, a telescopic end C68 and an electric telescopic rod servo motor C83, the action of the telescopic end C68 is driven by the electric telescopic rod servo motor C83, and the telescopic rod body C is fixedly connected with the freezing point constant temperature container; the top of the telescopic end C68 is fixedly provided with a flange E67, and the flange E67 is fixedly provided with a supporting plate C66.
The butt-clamping mechanism comprises a double-output-shaft screw shaft servo motor C62, a fixed light lever sleeve C65 and a light lever C64, and the light lever C64 is fixedly connected with the fixed light lever sleeve C65; the double-output-shaft lead screw shaft servo motor C62 and the fixed feed rod sleeve C65 are fixedly connected with a supporting plate C66 of the second lifting mechanism, the double-output-shaft lead screw shaft servo motor C62 drives a pair of lead screw shafts C63, the thread turning directions of the pair of lead screw shafts C63 are opposite, a nut moving block C98 is respectively screwed on the pair of lead screw shafts C63, two nut moving blocks C98 are respectively and fixedly connected with a horizontal moving rod C60, and the two horizontal moving rods C60 are respectively and correspondingly and fixedly connected with an arc-shaped plate C96; the two nut moving blocks C98 and the light bar C64 form a moving pair respectively; the two arc plates C96 form a pair of clamping jaws of the opposite clamping mechanism, and an electric heating belt 97 and a contact switch B111 are arranged on the clamping surfaces of the two arc plates C96; the clamping center lines of the two arc-shaped plates C96 are superposed with the central axis of a vertical motor shaft A81 of the first rotating mechanism, and the clamping principle is the same as that of the upper clamping structure and the lower clamping structure; two horizontal moving rods C60 are respectively provided with 1 camera C61.
Still including setting up second rotary mechanism, third elevating system, water injection pipe and the notes liquid nitrogen pipe outside freezing point constant temperature vessel.
The second rotating mechanism comprises a vertical axis servo motor B102, the vertical axis servo motor B102 comprises a motor body B and a vertical axis B110, and a rotating central axis LX of the vertical axis B110 is a vertical line; the motor body A is fixedly connected with the rigid substrate 2 of the base, and the top of the vertical shaft B110 is fixedly provided with a flange H103.
The third lifting mechanism comprises a vertical electric telescopic rod D105, the vertical electric telescopic rod D105 comprises a telescopic rod body D, a telescopic end D53 and an electric telescopic rod servo motor D104, the telescopic end D53 is driven by the electric telescopic rod servo motor D104, and the telescopic rod body D is fixedly connected with a flange plate H103 of the second rotating mechanism.
A flange D52 is fixedly arranged at the top of the telescopic end D53, a supporting plate D51 is fixedly arranged on the flange D52, a fixed seat supporting plate 92 is fixedly arranged on the supporting plate D51, and a fixed seat A43 and a fixed seat B50 are fixedly arranged on the fixed seat supporting plate 92; the fixing seat A43 is used for fixing the water container 42, and the fixing seat B50 is used for fixing the medical liquid nitrogen gun 49; the water injection pipe is communicated with a water container 42 through an electromagnetic valve 40 and a flowmeter 41, the water injection pipe comprises a water injection pipe slope part 39 and a water injection pipe vertical part 38, the bottom end of the water injection pipe vertical part 38 is a water outlet 36, the water outlet 36 is funnel-shaped, so that the flow cross section is reduced, the water injection pipe is favorable for being injected into a thermometer trap, and the lower part of the water injection pipe vertical part 38 is provided with a camera D37; the liquid nitrogen injection pipe is communicated with the medical liquid nitrogen gun 49, the medical liquid nitrogen gun 49 comprises a handle 93 and a liquid nitrogen delivery pipe 44, a switch button is arranged on the handle 93, and a liquid nitrogen nozzle 45 is arranged at the end part of the liquid nitrogen delivery pipe 44; the liquid nitrogen injection pipe comprises a vertical pipe 48, the vertical pipe 48 is made of polyimide, and the polyimide has the characteristics of low temperature resistance and stable size; the bottom end of the vertical pipe 48 is provided with a liquid nitrogen outlet, the bottom of the vertical pipe 48 is provided with a polyimide fiber elastomer 73, the bottom of the polyimide fiber elastomer 73 is provided with an upper convex-shaped flow guide body 74, and the maximum outer diameter of the upper convex-shaped flow guide body 74 is equivalent to the inner diameter of the outer wall 72 of the thermometer trap of the water triple-point bottle 55; the top of the vertical pipe 48 is a liquid nitrogen injection port 46, the vertical pipe 48 is fixed on a rigid connecting frame 106 through a sleeve C47, the rigid connecting frame 106 is fixedly connected with a fixed seat supporting plate 92, and the upper part of the vertical pipe 48 is provided with a camera E101; the liquid nitrogen starting and stopping mechanism is used for pressing a switch button of the medical liquid nitrogen gun 49, the liquid nitrogen starting and stopping mechanism is a miniature electric cylinder 94, the miniature electric cylinder 94 is fixed on a handle 93 of the medical liquid nitrogen gun 49, and a telescopic part of the miniature electric cylinder 94 is used for pressing the switch button of the medical liquid nitrogen gun 49; the central axis of the vertical part 38 of the water injection pipe is LZ, the central axis of the vertical pipe 48 is LD, LX, LZ and LD are parallel to each other, the plane formed by LX and LZ is set as MS plane, the plane formed by LX and LD is set as MD plane, and MS plane are perpendicular to each other.
The micro refrigerator 6, the condenser 88, the electric telescopic rod servo motor B87, the vertical axis servo motor A82, the electric telescopic rod servo motor A13, the double output shaft screw rod shaft servo motor A24, the double output shaft screw rod shaft servo motor B34, the electric telescopic rod servo motor, the C83, the double output shaft screw rod shaft servo motor C62, the electric heating belt 97, the vertical axis servo motor B102, the electric telescopic rod servo motor D104, the electromagnetic valve 40, the micro electric cylinder 94, the temperature sensor 95, the micro pressure sensor, the camera A26, the camera B28, the contact switch B111, the contact switch A77, the camera C61, the camera D37, the camera E101 and the flow meter 41 are all connected with the display PLC 99 in a wired or wireless mode.
The use method of the automatic device for freezing the ice sleeve of the water making three-phase point bottle by using liquid nitrogen in the embodiment comprises the following steps of:
s1: the starting device enables each electric control component to enter a work preparation state;
s2: adding ice water into the freezing point constant temperature container, starting the freezing point constant temperature container, and setting the temperature to be the freezing point temperature;
s3: when the temperature of the ice water in the freezing point constant temperature container is in accordance with the set state, displaying that the PLC 99 sends out prompt tones and subtitles for freezing the ice cover;
s4: the manually-operated tweezers hold the precooled water triple-point bottle 55 vertically into ice water in the freezing-point constant-temperature container, when the bottom of the water triple-point bottle 55 touches a contact switch A77 at the center of the nonmetal horizontal plate 76, the lower clamping mechanism and the upper clamping mechanism are started to act so as to clamp the periphery of the water triple-point bottle 55, when the pressure value of the miniature pressure sensor in the flexible contact pad 90 reaches a programmed set value, the lower clamping mechanism and the upper clamping mechanism stop acting, and at the moment, the manually-operated tweezers are not required to continue to hold the water triple-point bottle 55;
s5: controlling the third lifting mechanism to ascend to the upper position, and controlling the second rotating mechanism to act to enable the vertical pipe 48 to rotate to be right above the thermometer socket 54 of the water three-phase point bottle 55; controlling the third lifting mechanism to descend, displaying that the PLC 99 timely controls the descending speed and distance of the third lifting mechanism according to images sent by the camera A26, the camera B28, the camera C61 and the camera E101, and controlling the third lifting mechanism to stop when the lower end of the vertical pipe 48 finally reaches the bottom of the thermometer well through the thermometer socket 54;
s6: controlling a liquid nitrogen opening and closing mechanism to press a switch button of the medical liquid nitrogen gun 49 to enable liquid nitrogen to enter a thermometer well of the water triple point bottle 55 through a liquid nitrogen injection pipe;
s7: the display PLC 99 monitors the growth image condition of the ice cover according to the camera A26, the camera B28 and the camera C61, and the display PLC 99 controls the lifting of the liquid nitrogen opening and closing mechanism and the third lifting mechanism in time so that the injection amount and the injection time of the liquid nitrogen, the upper and lower movement of the lower end of the vertical pipe 48 and the polyimide fiber elastomer 73 all meet the programming setting, and the wall thickness, the appearance smoothness and the like of the ice cover are ensured to meet the requirements; when the liquid nitrogen falls to the center of the polyimide fiber elastomer 73 through the liquid nitrogen injection port 46, the liquid nitrogen is dipped on the convex-shaped deflector 74 and then seeps to the circumference of the lower end of the polyimide fiber elastomer 73; the polyimide fiber elastomer 73 has the function of a cotton ball used in the manual operation of freezing and making the ice sleeve by using liquid nitrogen, and is more favorable for forming the ice sleeve.
S8: if the image transmitted by the camera shows signs or an 'ice bridge' appears, the display PLC 99 controls the second lifting mechanism to drive the opposite clamping mechanism to ascend to a height position generated by the 'ice bridge', then controls the opposite clamping mechanism to drive the electric heating belt 97 to clamp the periphery of the water triple-point bottle 55 together, and controls the electric heating belt 97 to heat after the water triple-point bottle 55 touches the contact switch B111 and heat the periphery of the water triple-point bottle 55; after a period of time, controlling the butt-clamping mechanism to loosen the water triple-point bottle 55, simultaneously controlling the first rotating mechanism to rotate 90 degrees, and then controlling the butt-clamping mechanism to clamp the periphery of the water triple-point bottle 55 so that the periphery at the height can contact the heat of the electric heating belt 97; after the heating is repeatedly performed for several times, the ice bridge is eliminated, the second lifting mechanism is controlled to drive the opposite clamping mechanism to recover to the initial state, and the electric heating belt 97 stops heating;
if the position generated by the ice bridge is positioned at the clamping position of the lower clamping mechanism or the upper clamping mechanism, the PLC 99 is displayed to control the corresponding clamping mechanism to release the clamping of the water three-phase point bottle 55;
s9: the display PLC 99 judges that the ice sleeve 70 with the thickness and the uniformity and without cracks meeting the requirements is frozen according to the camera image, then enters an 'inner melting' program, controls the third lifting mechanism to ascend to the upper position, and controls the second rotating mechanism to act so that the vertical part 38 of the water injection pipe rotates to be right above the thermometer socket 54 of the water triple point bottle 55; controlling the electromagnetic valve 40 to act, so that the normal-temperature water in the water container (42) finally enters the thermometer trap of the water three-phase point bottle 55 through the flow meter (41), and displaying that the PLC 99 controls the electromagnetic valve 40 to act and close the water flow when the numerical value of the flow meter (41) reaches a programmed specified value;
s10: the display PLC controller 99 controls the first rotating mechanism to drive the water triple point bottle 55 to rotate repeatedly at an angle of plus or minus 45 degrees, when the display PLC controller 99 finds that the rotation of the ice sleeve 70 and the water triple point bottle 55 is asynchronous according to the camera image, it is judged that a layer of ice water interface 71 is formed between the inner wall of the ice sleeve 70 and the outer wall 72 of the thermometer trap, at the moment, the display PLC controller 99 controls the first rotating mechanism to stop working, then the lower clamping mechanism and the upper clamping mechanism are controlled to act, the clamping of the water triple point bottle 55 is released, and meanwhile, a prompt sound and a caption "the ice sleeve is frozen and the ice sleeve is taken out.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", etc., indicating orientations or positional relationships, are used for convenience in describing the present invention, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides an automatic device with liquid nitrogen freezes system water triple point bottle ice cover which characterized by: comprises a display PLC controller (99), a base and a freezing point constant temperature container arranged on the base;
a first rotating mechanism, a horizontal connecting rod (14), a first lifting mechanism, a lower clamping mechanism, a vertical rod (27), an upper clamping mechanism, a second lifting mechanism and a butt-clamping mechanism are fixedly arranged in an inner cavity of the freezing point constant temperature container;
the first rotating mechanism comprises a fixed part XZY and a rotating part XZY, the fixed part XZY is fixedly connected with the freezing point thermostatic vessel, the axis of a rotating central shaft of the rotating part XZY is a vertical line, the top of the rotating part XZY is fixedly provided with a non-metal horizontal plate (76), and the center of the non-metal horizontal plate (76) is provided with a contact switch A (77);
the first lifting mechanism comprises a fixed part SJY and a lifting part SJY, the first end of the horizontal connecting rod (14) is fixedly connected with the rotating part XZY of the first rotating mechanism, and the second end of the horizontal connecting rod (14) is fixedly connected with the fixed part SJY of the first lifting mechanism; the lower clamping mechanism is fixedly arranged at the top of the lifting part SJY of the first lifting mechanism, and the clamping central line of the lower clamping mechanism is superposed with the rotating central shaft of the rotating part XZY of the first rotating mechanism; the lower end of the vertical rod (27) is fixed at the top of the lower clamping mechanism, the upper clamping mechanism is fixedly arranged at the top of the vertical rod (27), and the clamping center line of the upper clamping mechanism is superposed with the clamping center line of the lower clamping mechanism; flexible contact pads (90) are arranged on the clamping surfaces of the lower clamping mechanism and the upper clamping mechanism, and miniature pressure sensors are arranged inside the flexible contact pads (90);
the second lifting mechanism comprises a fixing part SJR and a lifting part SJR, the fixing part SJR is fixedly connected with the freezing point constant temperature container, the opposite clamping mechanism is fixedly arranged at the top of the lifting part SJR, the clamping center line of the opposite clamping mechanism is superposed with the rotating center shaft of the rotating part XZY of the first rotating mechanism, a pair of clamping jaws of the opposite clamping mechanism are arc-shaped plates C (96), and an electric heating belt (97) and a contact switch B (111) are arranged on the clamping surface of each arc-shaped plate C (96);
a camera A (26) and a camera B (28) are arranged on the vertical rod (27), the camera A (26) is close to the lower clamping mechanism, and the camera B (28) is close to the upper clamping mechanism; a pair of clamping arms of the opposite clamping mechanism are respectively provided with 1 camera C (61);
the freezing point constant temperature device also comprises a second rotating mechanism, a third lifting mechanism, a water injection pipe and a liquid nitrogen injection pipe which are arranged outside the freezing point constant temperature container;
the second rotating mechanism comprises a fixed part XZR and a rotating part XZR, the fixed part XZR is fixedly connected with the base, and a rotating central axis LX of the rotating part XZR is a vertical line;
the third lifting mechanism comprises a fixed part SJS and a lifting part SJS, the fixed part SJS is fixedly arranged at the top of a rotating part XZR of the second rotating mechanism, the water injection pipe and the liquid nitrogen injection tank are fixedly connected with the lifting part SJS of the third lifting mechanism, the water injection pipe is communicated with the water container (42) through an electromagnetic valve (40) and a flowmeter (41), the water injection pipe comprises a water injection pipe vertical part (38), the bottom end of the water injection pipe vertical part (38) is a water outlet (36), and the lower part of the water injection pipe vertical part (38) is provided with a camera D (37); the liquid nitrogen injection pipe is communicated with the medical liquid nitrogen gun (49), the liquid nitrogen injection pipe comprises a vertical pipe (48), a liquid nitrogen outlet is formed in the bottom end of the vertical pipe (48), a camera E (101) is arranged on the upper portion of the vertical pipe (48), and the liquid nitrogen opening and closing mechanism is used for pressing a switch button of the medical liquid nitrogen gun (49);
the central axis of the vertical part (38) of the water injection pipe is LZ, the central axis of the vertical pipe (48) is LD, LX, LZ and LD are parallel to each other, the plane formed by LX and LZ is set as MS plane, the plane formed by LX and LD is set as MD plane, and the MS plane are perpendicular to each other;
the device comprises a first rotating mechanism, a first lifting mechanism, a lower clamping mechanism, an upper clamping mechanism, a second lifting mechanism, a butt-clamping mechanism, a second rotating mechanism, a third lifting mechanism, an electromagnetic valve (40), a flowmeter (41), a liquid nitrogen opening and closing mechanism and an electric heating belt (97), wherein actions of the first rotating mechanism, the first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the electromagnetic valve (40), the flowmeter (41), the liquid nitrogen opening and closing mechanism and the electric heating belt (97) are controlled through a display PLC (99), and a camera A (26), a camera B (28), a camera C (61), a camera D (37), a camera E (101), a contact switch A (77), a contact switch B (111) and the flowmeter (41) are connected with the display PLC (99).
2. The automatic device for freezing a three-phase bottle ice cover with liquid nitrogen according to claim 1, wherein: the first rotating mechanism comprises a vertical axis servo motor A (82), the vertical axis servo motor A (82) comprises a motor body A and a vertical motor shaft A (81), the motor body A is fixedly connected with the freezing point constant temperature container, a flange plate F (78) is fixedly arranged at the top of the vertical motor shaft A (81), and the flange plate F (78) is fixedly connected with the nonmetal horizontal plate (76);
the second rotating mechanism comprises a vertical shaft servo motor B (102), the vertical shaft servo motor B (102) comprises a motor body B and a vertical shaft B (110), the motor body A is fixedly connected with the base, a flange plate H (103) is fixedly arranged at the top of the vertical shaft B (110), and the flange plate H (103) is fixedly connected with a fixing part SJS of the third lifting mechanism.
3. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 1, wherein: the first lifting mechanism comprises a vertical electric telescopic rod A (16), the vertical electric telescopic rod A (16) comprises a telescopic rod body A, a telescopic end A (17) and an electric telescopic rod servo motor A (13), the telescopic end A (17) is driven by the electric telescopic rod servo motor A (13) to move, and the telescopic rod body A is fixedly connected with the second end of the horizontal connecting rod (14);
the second lifting mechanism comprises a vertical electric telescopic rod C (109), the vertical electric telescopic rod C (109) comprises a telescopic rod body C, a telescopic end C (68) and an electric telescopic rod servo motor C (83), the telescopic end C (68) is driven by the electric telescopic rod servo motor C (83) to move, and the telescopic rod body C is fixedly connected with the freezing point constant temperature container;
the third lifting mechanism comprises a vertical electric telescopic rod D (105), the vertical electric telescopic rod D (105) comprises a telescopic rod body D, a telescopic end D (53) and an electric telescopic rod servo motor (D104), the telescopic end D (53) is driven by the electric telescopic rod servo motor (D104), and the telescopic rod body D is fixedly connected with a rotating part XZR of the second rotating mechanism.
4. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 1, wherein: the lower clamping mechanism comprises a double-output-shaft screw rod shaft servo motor A (24), a fixed polish rod sleeve A (21) and a polish rod A (22), and the polish rod A (22) is fixedly connected with the fixed polish rod sleeve A (21); the double-output-shaft screw shaft servo motor A (24) and the fixed lever sleeve A (21) are fixedly connected with a lifting part SJY of the first lifting mechanism, the double-output-shaft screw shaft servo motor A (24) coaxially drives a pair of screw shafts A (23), the thread turning directions of the pair of screw shafts A (23) are opposite, the pair of screw shafts A (23) are respectively in threaded connection with a screw nut moving block A (108), the two screw nut moving blocks A (108) are respectively and fixedly connected with a lower horizontal moving rod A (18), and the two lower horizontal moving rods A (18) are respectively and fixedly connected with an arc-shaped plate A; two nut moving blocks A (108) and the light bar A (22) form a moving pair respectively;
the upper clamping mechanism comprises a double-output-shaft screw shaft servo motor B (34), a fixed light bar sleeve B (31) and a light bar B (32), and the light bar B (32) is fixedly connected with the fixed light bar sleeve B (31); a double-output-shaft lead screw shaft servo motor B (34) and a fixed feed lever sleeve B (31) are fixedly connected with a vertical rod (27), the double-output-shaft lead screw shaft servo motor B (34) drives a pair of lead screw shafts B (33), the thread turning directions of the pair of lead screw shafts B (33) are opposite, the pair of lead screw shafts B (33) are respectively screwed with a nut moving block B (89), the two nut moving blocks B (89) are respectively and fixedly connected with an upper horizontal moving rod B (35), and the two upper horizontal moving rods B (35) are respectively and fixedly connected with an arc-shaped plate B (91); two nut moving blocks B (89) and the light bar B (32) form a moving pair respectively;
the butt-clamping mechanism comprises a double-output-shaft screw shaft servo motor C (62), a fixed light bar sleeve C (65) and a light bar C (64), and the light bar C (64) is fixedly connected with the fixed light bar sleeve C (65); the double-output-shaft screw shaft servo motor C (62) and the fixed polish rod sleeve C (65) are fixedly connected with a lifting part SJR of the second lifting mechanism, the double-output-shaft screw shaft servo motor C (62) drives a pair of screw shafts C (63), the thread turning directions of the pair of screw shafts C (63) are opposite, the pair of screw shafts C (63) are respectively screwed with a screw nut moving block C (98), the two screw nut moving blocks C (98) are respectively and fixedly connected with a horizontal moving rod C (60), and the two horizontal moving rods C (60) are respectively and correspondingly and fixedly connected with an arc-shaped plate C (96); the two nut moving blocks C (98) respectively form a moving pair with the light bar C (64).
5. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 1, wherein: still include fourth elevating system, fourth elevating system includes fixed part SJSI and lift portion SJSI, fixed part SJSI with freezing point constant temperature container fixed connection, lift portion SJSI with first rotary mechanism's fixed part XZY fixed connection.
6. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 5, wherein: fourth elevating system includes perpendicular electric telescopic handle B (86), and perpendicular electric telescopic handle B (86) include telescopic link body B, flexible end B (85) and electric telescopic handle servo motor B (87), and the action of flexible end B (85) is driven by electric telescopic handle servo motor B (87), telescopic link body B with freezing point constant temperature container fixed connection, the top of flexible end B (85) is fixed and is equipped with ring flange G (84), ring flange G (84) with the fixed part XZY fixed connection of first rotary mechanism.
7. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 1, wherein: the freezing point constant-temperature container comprises a freezing point water tank (5), the freezing point water tank (5) comprises a lower equipment layer and an upper water tank, a micro refrigerator (6) and a condenser (88) are arranged in the lower equipment layer, the upper water tank is used for containing ice water (59), the upper water tank consists of a water tank inner wall (58) and an ice point water tank bottom (12), a refrigerating pipe (11) is fixedly arranged at the ice point water tank bottom (12), and the refrigerating pipe (11) is communicated with the micro refrigerator (6) through a refrigerating fluid conveying pipe (7); the outside of upper portion basin is equipped with heat preservation (57), is equipped with temperature sensor (95) in the inner chamber of upper portion basin, temperature sensor (95), micro-refrigerator (6) and condenser (88) all with show PLC controller (99) and link to each other.
8. The automatic device for freezing a three-phase bottle ice cover with liquid nitrogen according to claim 1, wherein: the liquid nitrogen starting and stopping mechanism is miniature electronic jar (94), third elevating system's lifting unit SJS's top is fixed and is equipped with ring flange D (52), medical liquid nitrogen gun (49) and ring flange D (52) fixed connection, miniature electronic jar (94) are fixed on handle (93) of medical liquid nitrogen gun (49), and the telescopic part of miniature electronic jar (94) is used for pressing the shift knob of medical liquid nitrogen gun (49).
9. The automatic device for freezing a three-phase bottle sleeve of water with liquid nitrogen as claimed in claim 1, wherein: the bottom of the vertical pipe (48) is provided with a polyimide fiber elastic body (73), the bottom of the polyimide fiber elastic body (73) is provided with an upper convex flow guide body (74), and the maximum outer diameter of the upper convex flow guide body (74) is equivalent to the inner diameter of the outer wall (72) of the thermometer trap of the water triple point bottle (55).
10. Use of the device according to any of claims 1 to 9 for freezing a three-phase bottle sleeve with liquid nitrogen, characterized in that it comprises: the method comprises the following steps:
s1: the starting device enables each electric control component to enter a work preparation state;
s2: adding ice water into the freezing point constant temperature container, starting the freezing point constant temperature container, and setting the temperature to be the freezing point temperature;
s3: when the temperature of ice water in the freezing point constant temperature container is in accordance with the set state, displaying a PLC (99) to send out prompt tones and subtitles for freezing the ice sleeve;
s4: the method comprises the following steps that a manual forceps holds a precooled water triple-point bottle (55) to be vertically placed into ice water of a freezing point constant temperature container, when the bottom of the water triple-point bottle (55) touches a contact switch A (77) at the center of a nonmetal horizontal plate (76), a lower clamping mechanism and an upper clamping mechanism are started to act so as to clamp the periphery of the water triple-point bottle (55), when the pressure value of a micro pressure sensor in a flexible contact pad (90) reaches a programmed set value, the lower clamping mechanism and the upper clamping mechanism stop acting, and at the moment, the water triple-point bottle (55) does not need to be held by the forceps manually;
s5: controlling the third lifting mechanism to ascend to the upper position, and controlling the second rotating mechanism to act to enable the vertical pipe (48) to rotate to be right above a thermometer socket (54) of a water three-phase point bottle (55); controlling the third lifting mechanism to descend, displaying images sent by a PLC (99) according to a camera A (26), a camera B (28), a camera C (61) and a camera E (101) to timely control the descending speed and distance of the third lifting mechanism, and controlling the third lifting mechanism to stop when the lower end of the vertical pipe (48) finally reaches the bottom of the thermometer well through the thermometer socket (54);
s6: controlling a liquid nitrogen opening and closing mechanism to press a switch button of a medical liquid nitrogen gun (49) to enable liquid nitrogen to enter a thermometer well of a water triple point bottle (55) through a liquid nitrogen injection pipe;
s7: the display PLC (99) monitors the growth image condition of the ice sleeve according to the camera A (26), the camera B (28) and the camera C (61), and the display PLC (99) then timely controls the lifting of the liquid nitrogen opening and closing mechanism and the third lifting mechanism, so that the injection amount and the injection time of liquid nitrogen and the up-and-down movement of the lower end of the vertical pipe (48) all accord with the programming setting, and the wall thickness, the appearance smoothness and the like generated by the ice sleeve are ensured to accord with the requirements;
s8: if the image transmitted by the camera shows signs or an 'ice bridge' appears, the display PLC (99) controls the second lifting mechanism to drive the butt-clamping mechanism to ascend to a height position generated by the 'ice bridge', then controls the butt-clamping mechanism to drive the electric heating belt 97 to clamp the periphery of the water triple-point bottle (55) together, and controls the electric heating belt (97) to generate heat to heat the periphery of the water triple-point bottle (55) after the water triple-point bottle (55) touches the contact switch B (111); after a period of time, controlling the butt-clamping mechanism to loosen the water triple point bottle (55), simultaneously controlling the first rotating mechanism to rotate 90 degrees, and then controlling the butt-clamping mechanism to clamp the periphery of the water triple point bottle (55) so that the periphery at the height can contact the heat of the electric heating belt (97); after the ice bridge is eliminated after the electric heating belt is rotated and heated for a plurality of times repeatedly, the second lifting mechanism is controlled to drive the opposite clamping mechanism to recover to the initial state, and the electric heating belt (97) stops heating;
if the position generated by the ice bridge is positioned at the clamping position of the lower clamping mechanism or the upper clamping mechanism, the display PLC (99) controls the corresponding clamping mechanism to release the clamping of the water three-phase point bottle (55);
s9: the display PLC (99) judges that the frozen ice sleeve (70) with the thickness and the uniformity and without cracks meeting the requirements enters an 'inner melting' program according to the camera image, controls the third lifting mechanism to ascend to the upper position, and controls the second rotating mechanism to act so that the vertical part (38) of the water injection pipe rotates to be right above the thermometer socket (54) of the water triple-point bottle (55); controlling the electromagnetic valve (40) to act, so that the normal-temperature water in the water container (42) finally enters a thermometer well of the water three-phase point bottle (55) through the flowmeter (41), and displaying that the PLC (99) controls the electromagnetic valve (40) to act and close the water flow when the numerical value of the flowmeter (41) reaches a programmed specified value;
s10: the display PLC controller (99) controls the first rotating mechanism to drive the water triple point bottle (55) to rotate repeatedly at the positive and negative angles of 45 degrees, when the display PLC controller (99) finds that the rotation of the ice sleeve (70) and the water triple point bottle (55) is asynchronous according to the camera image, a layer of ice water interface (71) is formed between the inner wall of the ice sleeve (70) and the outer wall (72) of the thermometer trap, at the moment, the display PLC controller (99) controls the first rotating mechanism to stop working, then the lower clamping mechanism and the upper clamping mechanism are controlled to act, the clamping of the water triple point bottle (55) is released, and meanwhile, prompt sound and caption 'ice sleeve freezing completion request for taking away' are sent.
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