CN106683543A - Experimental device of manual pressure source for testing multiple fluid pressure volume temperature relationship - Google Patents
Experimental device of manual pressure source for testing multiple fluid pressure volume temperature relationship Download PDFInfo
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- CN106683543A CN106683543A CN201710182144.7A CN201710182144A CN106683543A CN 106683543 A CN106683543 A CN 106683543A CN 201710182144 A CN201710182144 A CN 201710182144A CN 106683543 A CN106683543 A CN 106683543A
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- G—PHYSICS
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
An experimental device of manual pressure source for testing multiple fluid pressure volume temperature relationship comprises a manual pressure generator and a measuring apparatus, the mercury working fluid and sealing liquid. The lower an upper ends of the measuring apparatus are conical, the middle part of the apparatus is cylindrical. The measuring apparatus comprises glass flange capillary, constant temperature circulating water jacket, a sealing liquid container lid, a seal liquid container, a seal, a constant temperature circulating water jacket fixed structure, a vacuum valve, a charging valve, a pressure gauge and a bolt and other accessories, the measuring apparatus is conveniently filling with high purity fluid which comprises carbon dioxide, hexafluoride, ethane, freon 13, freon 23, the manual pressure generator is connected with the measuring apparatus by pressure metal pipe and sleeve joint. The device has the advantages of completely solving the hidden troubles of air leakage, oil leakage and operation errors caused by hydraulic oil not using of a pressure gauge validator ,testing multiple fluid property and being convenient to use.
Description
Technical field
It is more particularly to a kind of to be used for various streams the present invention relates to a kind of experimental provision determined for fluid properties with observation
Body pressure, the experimental provision that nexus nature is determined and critical phenomena are observed between volume, temperature, belong to experiment teaching instrument.
Background technology
The pressure of fluid（P）, volume（V）, temperature（T）Between property relation be fluid fundamental property, be calculate stream
The basic data of body heat mechanical property, after having these property datas, other heat of fluid can be calculated according to thermodynamic relation
Mechanical property, these properties play a significant role at aspects such as chemistry, chemical industry, refrigeration, heat energy utilizations；The physical data of fluid,
Such as the critical-temperature of fluid, critical pressure, critical size property are to determine the property such as material liquefaction, vaporization, design of pressure vessels
The basic data of matter, needs to determine pressure, the relation between volume, temperature of fluid for this, and observation recognizes facing for Study of Fluid
Criticality matter, because these physical datas of fluid are the most basic property of fluid, thus fluid temperature, pressure, stereometry
And critical data is determined and is taken seriously.
The pressure of fluid, the measure of relation and critical phenomena observation are that many colleges and universities open up between volume, temperature one
Experimental project, Chinese patent CN202599882U discloses the composition of carbon dioxide critical point and p-v-T relation measurement experiment platforms,
The measurement experiment platform mainly has experimental bench body, constant temperature circulating bath, constant temperature circulating water leg, piston-type pressure source, carbon dioxide
Deng composition, but pressure gauge tester is used in equipment as pressure source, it is relatively low in temperature using castor oil as hydraulic fluid
When, because castor-oil plant oil viscosity is excessive, when being pumped using piston, often there is air that oil cylinder is leak into from piston seal,
It is exactly hydraulic fluid cylinder, causes castor oil to be pumped into oil cylinder, it is impossible to pressurize, experiment cannot be carried out, at the same temperature, by castor
Sesame oil is replaced by transformer oil, and transformer oil viscosity is smaller, is substantially not in the phenomenon for leaking into air, but applies elevated pressures
When, transformer oil is easily leaked from piston seal, therefore uses castor oil or transformer oil all existing defects；Except this it
Outward, the more serious problem for being existed as pressure source using pressure gauge tester is：Pressure gauge tester has multiple valves, in reality
Test when carrying out, the mistake that valve is opened or closed often occurs, the intrinsic carbon dioxide of experimental bench is high due to pressure, pressure
Lubricating cup pressure is normal pressure in table checker, and inside and outside differential pressure is big, causes the carbon dioxide in experiment body to be gone out from body, causes
Equipment scrapping, because needing skill to fluid is filled with experimental provision body, only asks equipment manufacturer to be filled with fluid again,
Travel charge and cost of labor are very high, and pretty troublesome, and manufacturer is often also unwilling to be filled with fluid, when inside and outside differential pressure is slightly smaller
When can damage pressure gauge, due to being that misoperation causes such issues that often occur, thus manufacturer is unwilling that production is this kind of
Equipment, because it is difficult to distinguishing responsibility, later maintenance cost is very high；Because pressure gauge tester oil cylinder volume is more than experimental bench body
, it is necessary to be extracted into oil in the oil cylinder of body from lubricating cup repeatedly using pressure gauge tester piston, experiment effect by inner cylinder small volume
Rate is low；Another drawback is more as the mercury usage amount of sealing liquid, and often an experimental provision needs a kg of water
Silver, the hidden danger brought is self-evident.
The content of the invention
Regarding to the issue above, inventor is solve problem by following technical solution：
Manual pressure source can determine the experimental provision of multiple fluid pressure bulk temperature relation by Manual pressure generator and measurement
Device is constituted, and Manual pressure generator is by handwheel（1）, piston screw（2）, nut（3）, piston cylinder（4）, piston component（5）, work
Make liquid cylinder（6）, joint (7) composition, wherein nut（3）With piston screw（2）Coordinate, by handwheel（1）Rotate handwheel（1）
Rotary motion be changed into piston screw（2）Linear motion, promote piston component（5）In piston cylinder（4）Interior motion, so as to change
Become work liquid cylinder（6）Volume size and produce pressure change, piston screw（2）End is embedded in piston component（5）In, formed
Gap coordinates, joint（7）For connecting measurement apparatus, mercury is the hydraulic fluid of Manual pressure generator, and mercury is also simultaneously
Sealing liquid.
Piston component（5）Including spigot nut（8）, piston component main body（9）, piston element（10）、（11）、（14）, it is living
Plug seal（13）, clamp nut（12）.
Measurement apparatus are by constant temperature circulating water leg（20）, glass flange capillary（21）, constant temperature circulating water leg seal
（22）, glass flange capillary flange gland（23）, sealing liquid container lid（24）, sealing liquid container（25）, glass method
Blue compress gasket（26）, glass flange capillary flange gland fixing bolt（27）, seal（28）, seal（29）, joint
（30）, constant temperature circulating water leg fixed structure, vacuum valve, charge valve, pressure gauge and for connecting vacuum valve, charge valve, pressure
Table and sealing liquid container（24）Attachment structure and the annex such as bolt composition.
In sealing liquid container lid（24）There is horizontal through hole side（241）, by horizontal through hole（241）By vacuum valve,
Charge valve, pressure gauge are connected in measurement apparatus.
Measurement apparatus main body is by sealing liquid container lid（24）With sealing liquid container（25）Composition, measurement apparatus main body
Internal upper and lower ends are middle cylindrical respectively in cone, in sealing liquid container（25）Upper placement seal（29）, will be close
Sealing liquid body container lid（24）With sealing liquid container（25）Link together, sealing is placed on sealing liquid container lid (24)
Part（28）With glass flange capillary（21）, in glass flange capillary（21）Glass flange compress gasket is placed on flange
（26）, by glass flange capillary flange gland（23）With glass flange capillary（21）, seal（28）After cooperation, glass method
Blue capillary flange gland fixing bolt（27）With through hole（232）Coordinate, by glass flange capillary flange gland（23）It is fixed
To sealing liquid container lid（24）On, in glass flange capillary flange gland（23）Upper placement constant temperature circulating water leg sealing
Part（22）, by constant temperature circulating water leg（20）It is placed in constant temperature circulating water leg seal（22）Upper correspondence position, is followed using constant temperature
Ring water leg fixed structure is by constant temperature circulating water leg（20）Horizontal plane is axially perpendicular to fix.
By joint（7）, joint（30）Using pressure tight metal pipe, ferrule fitting by Manual pressure generator and measurement apparatus
Couple together.
To reduce mercury usage amount, at 1~5 millimeter, pressure tight metal thickness of pipe wall is at 1~3 millimeter for pressure tight metal bore.
Constant temperature circulating water leg fixed structure is by bolt（31）It is fixed on bolt hole（231）On, by thermostatical circulating water
Four semi-circular grooves on chuck hold assembly（40）Cooperation, use eight on bolt and constant temperature circulating water leg hold assembly
Individual horizontal through hole（41）Cooperation, by constant temperature circulating water leg（20）It is vertically fixed on glass flange capillary flange gland（23）
On.
Constant temperature circulating water leg hold assembly in itself height and constant temperature circulating water leg（20）The ratio between height is 1: 8~1:
20, constant temperature circulating water leg hold assembly is arranged on bolt（31）Bottom, bolt（31）Height is at 6~10 centimetres.
The sealing liquid of measurement apparatus is mercury, the fluid that measurement apparatus are filled with including but not limited to carbon dioxide, hexafluoro
Change sulphur, ethane, freon 13, freon 23, fluid purity requirement molar percentage reaches 99.99%.
Manual pressure generator is along hydraulic fluid cylinder（6）Axially, measurement apparatus are along glass flange capillary（21）Axially hang down
It is straight to be installed in horizontal plane, the joint of Manual pressure generator（7）, measurement apparatus joint（30）It is respectively positioned on bottom, hydraulic fluid
Cylinder（6）Hydraulic fluid is less than horizontal through hole when volume is maximum（241）.
Hydraulic fluid cylinder in Manual pressure generator（6）Working liquid volume can be discharged more than Manual pressure generator and survey
Amount device connecting line volume and at least 10 milliliters of confined space volume sum in measurement apparatus.
Horizontal through hole（241）, its position corresponds to sealing liquid container lid（24）Interior ramp area, holds from sealing liquid
Device lid（24）Bottom calculates, and its horizontal center position is in sealing liquid container lid（24）To five points at 2/3rds of height
Everywhere.
Charge valve, vacuum valve, manometric joint level are higher than horizontal through hole（241）Horizontal center line.
Glass flange capillary（21）The ratio between flange outer diameter and capillary glass tube external diameter are 5: 1~8: 1.
Sealing liquid container lid（24）Conical centre's line, sealing liquid container（25）Conical centre's line and glass flange hair
Tubule（21）Longitudinal center line is on same vertical line.
Joint（30）Upper end and sealing liquid container（25）Taper minimum point is connected.
Glass flange capillary flange gland fixing bolt（27）The preferably interior hexagonal cylindrical hook bolt of bolt.
Constant temperature circulating water leg（20）Delivery port is higher than at least 2 centimetres of glass flange capillary tip.
Hydraulic fluid cylinder（6）Surface roughness is not more than 0.10 μm.
The advantage of the present patent application is to replace pressure gauge tester using Manual pressure generator, using mercury as work
Liquid, gas leakage, the small easy oil leak experiment of transformer oil viscosity cannot be carried out caused by thoroughly castor-oil plant oil viscosity is big under solution low temperature
Problem, fundamentally solve due in experiment body and pressure gauge tester because pressure differential is excessive, operational error cause stream
Body is gone out from experiment body, causes the hidden danger that experimental facilities is scrapped, and without pumping repeatedly, conventional efficient is high, and reducing mercury makes
Consumption, it is easy to use.
Brief description of the drawings
A kind of section of structure of Fig. 1, Manual pressure generator, 1 handwheel, 2 piston screws, 3 nuts, 4 piston cylinders, 5 live
Plug assembly, 6 hydraulic fluid cylinders, 7 joints.
A kind of piston component profile of Fig. 2, Manual pressure generator, 8 spigot nuts, 9 piston component main bodys, 10,11,14
Piston, 13 piston seals, 12 clamp nuts.
A kind of profile of Fig. 3, measurement apparatus, 20 constant temperature circulating water legs, 21 glass flange capillaries, 22 constant temperature circulatings
Water leg seal, 23 glass flange capillary flange glands, 24 sealing liquid container lids, 25 sealing liquid containers, 26 glass
Glass flange screw pad, 27 glass flange capillary flange gland fixing bolts, 28 seals, 29 seals, 30 joints, 201
Thermowell, 202 constant temperature circulating water outs, 203 constant temperature circulating water inlets.
Fig. 4, constant temperature circulating water leg fixed structure, upper left side figure are the vertical views of glass flange capillary flange gland 23
Figure, 231 bolts hole, 232 through holes, lower left figure is the profile that glass flange capillary flange gland 23 and bolt 31 coordinate,
Upper right side figure is the top view of constant temperature circulating water leg hold assembly, and 40 semi-circular grooves, lower right is constant temperature circulating water leg folder
Hold the front view of part, 41 horizontal through hole.
Fig. 5, the profile of sealing liquid container lid 24,241 horizontal through hole.
Specific embodiment
It is related in measurement apparatus to Manual pressure generator in the present patent application to further understand explanation patent application
Content is further explained, and illustrates implementation of the invention.
Due to the fixation of the support, Manual pressure generator and measurement apparatus of fixed manual pressure generator and measurement apparatus
Structure belongs to known, and such as Manual pressure generator and measurement apparatus use hexagonal steel making, or use round steel bar or steel pipe by hand
Dynamic pressure forcer and measurement apparatus external process into hexagon, or on Manual pressure generator and measurement apparatus surface soldered
It is not drawn on the diagram for part fixed and for installing, thus fixture structure and part.
Vacuum valve, charge valve, pressure gauge and connection vacuum valve, charge valve, pressure gauge and sealing liquid container lid（24）
The attachment structure for coupling together can have diversified forms, such as pass through pipe fitting and pipeline by vacuum valve, charge valve, pressure gauge and sealing
Liquid container lid（24）Couple together, it is also possible to use metal bar or sheet material, and processed on metal bar or sheet material
Corresponding connecting hole is coupled together.
Assembled according to order from top to bottom according to Fig. 3, first with stainless steel tube and ferrule fitting, by joint（7）With connect
Head（30）Manual pressure generator and measurement apparatus are coupled together, the stainless steel tube internal diameter for using is 2 millimeters, 2 millimeters of wall thickness,
Rotation hand wheel（1）Make hydraulic fluid cylinder（6）Volume is maximum, by sealing liquid container（25）It is fixed on support, from sealing liquid
Container（25）Top adds about 480 grams of liquid mercury of sealing, adjusts Manual pressure generator level, excludes hydraulic fluid cylinder（6）
Interior air, mercury is full of hydraulic fluid cylinder（6）, by seal（29）It is put into sealing liquid container（25）On, seal（29）Choosing
With polytetrafluoroethylene gasket, by sealing liquid container lid（24）It is connected to sealing liquid container（25）On, hold in sealing liquid
Place seal in device lid (24) top（28）, seal（28）Selection uses gasket seal, by glass flange capillary（21）
It is placed in glass flange capillary flange groove, in glass flange capillary（21）With glass flange compress gasket（26）Coordinate,
Use glass flange capillary flange gland fixing bolt（27）With through hole（232）Coordinate, by glass flange capillary flange pressure
Lid（23）It is fixed on sealing liquid container lid（24）On, by constant temperature circulating water leg（20）It is placed on constant temperature circulating water leg close
Sealing（22）On, constant temperature circulating water leg seal（22）Material is rubber, can with constant temperature circulating water leg lower end structure and
Glass flange capillary（21）Close fit.
Constant temperature circulating water leg（20）It is to be fixed using constant temperature circulating water leg clamping device, two bolts（31）With glass
Glass flange capillary flange gland（23）On bolt hole（231）Coordinate, by half on constant temperature circulating water leg hold assembly
Circular trough（40）, bolt（31）, horizontal through hole（41）By constant temperature circulating water leg（20）It is vertically fixed on glass flange capillary
Flange gland（23）On, constant temperature circulating water leg hold assembly installation site is in constant temperature circulating water leg（20）Bottom, higher than perseverance
Warm circulating water intake（203）10 millimeters.
By horizontal through hole（241）, attachment structure vacuum valve, charge valve, pressure gauge are connected to sealing liquid container lid
Son（24）On.
In constant temperature circulating water leg（20）Thermowell（201）Middle insertion thermometer, thermostatical circulating water is connected respectively
It is connected to constant temperature circulating water out（202）With constant temperature circulating water inlet（203）On, the temperature of regulating thermostatic circulator bath to setting
Value.
Vacuum valve and charge valve are closed, first with the sealing of the air analysis measurement apparatus of confined space in measurement apparatus
Property, rotary manual pressure generator handwheel（1）, mercury is transported in sealing liquid container, slow compressed air reaches pressure
To 6MPa, kept for 1 to 2 minutes, pressure should remain unchanged, after pressure testing is qualified, rotary manual pressure generator handwheel（1）Make work
Liquid cylinder（6）Volume is maximum, and vavuum pump is connected with surge flask, then surge flask is connected on the vacuum valve of measurement apparatus, beats
Vacuum valve is driven, vavuum pump is started, vacuumized at least 30 minutes, close vacuum valve, sulfur hexafluoride steel cylinder is connected to measurement apparatus
Charge valve on, open charge valve, be filled with sulfur hexafluoride fluid to 0.1 MPa, close charge valve, be again turned on vacuum valve, then
Vacuumize 10 minutes, close vacuum valve, then rotation hand wheel（1）Mercury is pressed into liquid sealing container, height reaches glass
Minimum point in flange capillary, is defined so that naked eyes are visible, starts to be filled with sulfur hexafluoride steam to pressure gauge reading and reaches 0.4MPa,
Charge valve is closed, Manual pressure generator is vertically fixed on support, it is desirable to hydraulic fluid cylinder（6）Working solution when volume is maximum
Body is less than horizontal through hole（241）, constant temperature circulating switch pump is opened, first measure at room temperature, rotation hand wheel（1）Gradually plus
Pressure, sulfur hexafluoride is presented the states such as superheated steam, saturated vapor, VLE, saturated liquid, compressed liquid successively, and records
Temperature of the measurement, pressure, the data of fluid level.
Fluid volume is equal to glass flange capillary by fluid level and capillary inner diameter numerical value according to fluid volume（21）
Sectional area calculates fluid volume, glass flange capillary with fluid level product（21）Internal diameter is obtained using gravimetric method,
By glass flange capillary under constant temperature（21）Highly, glass flange capillary（21）Mercury density under interior mercury weight, constant temperature
Calculate, glass flange capillary（21）Internal diameter is 0.312 centimetre, can calculate glass flange capillary（21）Hair
Tubule cross-sectional area is 0.0764 square centimeter, the constant temperature circulating water leg according to experimental record（20）Vertical direction on side
Scale value calculates fluid level, by fluid level and capillary inner diameter numerical value, according to fluid volume be equal to capillary sectional area with
Fluid level product calculates fluid volume, from constant temperature circulating water leg（20）The thermometer record experimental temperature of insertion, from pressure
Power meter reading records experimental pressure, can draw out the pv diagram under isothermal.
45.5 DEG C are increased the temperature to, the fuzzy critical phenomena in vapour-liquid line of demarcation can be observed.
When critical-temperature 45.5 DEG C of the temperature higher than sulfur hexafluoride, sulfur hexafluoride is in gas or Supercritical Conditions,
Recordable temperature, pressure, fluid level data, and fluid volume is calculated, the pv diagram under isothermal can be drawn out.
When need to use specific volume or molal volume data draw pv diagram when, can by the pressure of measuring, temperature,
The volume data of fluid, the amount of the material of fluid is calculated according to data in literature, and then obtains specific volume or molal volume.
After experiment is finished, pressure in measurement apparatus can be reduced to pressure gauge gauge pressure slightly above atmospheric pressure, waited for down
Secondary experiment.
To save the classroom experiment time, the process that measurement apparatus vacuumized, filled sulfur hexafluoride steam can be by experimental technique people
Member or teacher complete in advance.
By taking carbon dioxide pressure bulk temperature determination experiment as an example, implementation of the invention is further illustrated.First with
The sealing of air analysis device in measurement apparatus confined space, it is ensured that vacuum valve and charge valve are to close, and slowly rotate hand
Wheel（1）, compressed air makes pressure reach 10MPa, kept for 1 to 2 minutes, and pressure should remain unchanged, after device inspection of hermetic seal is qualified,
Rotation hand wheel（1）, make hydraulic fluid cylinder（6）Volume is maximum, vavuum pump is connected on surge flask, then surge flask is connected into survey
Measure on the vacuum valve of device, open vacuum valve, start vavuum pump, vacuumize at least 20 minutes, close vacuum valve；By carbon dioxide
Steel cylinder is connected on the charge valve of measurement apparatus, opens charge valve, is filled with carbon dioxide-vapor to slightly above atmospheric pressure, and closing is filled
Air valve, opens vacuum valve, then vacuumizes 10 minutes, closes vacuum valve, then rotation hand wheel（1）, mercury is increased to glass method
Blue capillary（21）Capillary lower end, by naked eyes it is visible be defined, then open charge valve, be filled with carbon dioxide-vapor and arrive
0.4MPa, closes charge valve, opens constant temperature circulating taps, first measures at room temperature, rotation hand wheel（1）Gradually pressurize,
Carbon dioxide is presented the states such as superheated steam, saturated vapor, VLE, saturated liquid, compressed liquid successively, and record determines temperature
Degree, pressure, the data of fluid level, fluid level are by constant temperature circulating water leg（20）Scale in the vertical direction of side shows
, draw out the pv diagram under isothermal.
The method more than one of critical phenomena is observed, such as at room temperature, allows carbon dioxide to be in VLE state or full
And liquid condition, thermostatical circulating water bath temperature is set as 35 DEG C, it is observed that carbon dioxide vapour-liquid point in temperature-rise period
The phenomenon that interface disappears.
To 40 DEG C, carbon dioxide is presented gas or Supercritical Conditions to warming temperature, and record pressure, temperature, fluid are high
The data such as degree, calculate fluid volume, draw out the pv diagram under isothermal.
The vacuum pump flow rate used in experiment is 1 Liter Per Minute, and absolute pressure reaches -0.09MPa.
The experimental provision body announced using CN202599882U, still uses pressure gauge tester to occur as pressure
Device, in addition to it need not vacuumize, fill fluid, remaining operating procedure experimental provision essentially identical but original altogether is because pressure gauge
The oil pressure chamber vol of the oil cylinder Capacity Ratio experimental bench body of checker is much smaller, it is necessary to repeatedly pumped from lubricating cup, then to experiment
It is oil-filled in playscript with stage directions body, pressure reading could be shown on pressure gauge.Pressure gauge tester oil pumping, oil-filled operating process are weighed very much
Will because operation go wrong do not add not only pressure can also destructive test equipment, its step is as follows：1. closing presure table and enter
Enter two valves of body oil circuit, the inlet valve of the lubricating cup on Opening pressure table checker.2. shake and move back on pressure gauge tester
Piston screw, until screw rod is all exited, has at this moment filled oil in pressure platform oil cylinder.3. lubricating cup valve is first closed, is then turned on
Pressure gauge and two valves into body oil circuit.4. shake into piston screw, it is oil-filled to device body, so repeatedly, until pressure
Untill having pressure reading on power table, when secondary oil-filled, it is necessary to the pressure reached when remembeing oil-filled for the first time first, wait secondary oil-filled
When pressure reaches pressure oil-filled for the first time, the valve of body oil circuit could be opened, in order to avoid damage equipment.In whole experiment process
Pressure is no more than 6.0MPa.5. check again for whether lubricating cup valve shuts, whether pressure gauge and body oil circuit valve are opened, if
Stablize, you can experiment.Remaining step is same as Example 1, but operating procedure is more, the chance for valve opening and closing occur
It is many, it is easily caused carbon dioxide and goes out experimental bench body, experimental facilities is easily damaged, when another problem is low temperature, even if
Temperature also often occurs because castor-oil plant oil viscosity is big at 15 DEG C, and air inlet in pressure gauge tester piston is taken out and do not oiled,
Often having causes the situation of the failure of an experiment to occur.
Once open or close the valve operation error on pressure gauge tester, experimental provision body and pressure gauge tester
Pressure differential is larger, can go out fluid in measurement body, causes equipment scrapping.
Sealing liquid container lid（24）With sealing liquid container（25）Between connected mode have various, such as threaded connection, weldering
Connect, threaded connection also there are diversified forms, such as directly in sealing liquid container lid（24）Lower inner surface processes internal thread,
In sealing liquid container（25）Top processes external threads, it is also possible in sealing liquid container lid（24）Lower external face with it is close
Envelope liquid container（25）Outer surface of upper processes screw thread, by a double internal thread straight couplings by sealing liquid container lid（24）
With sealing liquid container（25）Couple together.
According to sealing liquid container lid（24）With sealing liquid container（25）Between type of attachment it is different, seal form has many
Kind, such as packing seal, seal sealing.
Seal species is a lot, and such as cross sectional shape is the O-ring seals of O shapes, and section is the profiled seals such as trapezoidal, rectangle
Part, also gasket seal etc., its material preferably ageing-resistant, high temperature resistant, the material of chemical-resistant reagent, such as nitrile rubber, butyl
Rubber, neoprene, butadiene-styrene rubber, fluorubber, silicon rubber, polyurethane rubber, chlorosulfonated polyethylene, polysulfide rubber, modified rubber
Glue, compounded rubber Polymer material.
Seal can also be formed by different materials cladding, and seal includes that two or more material coats to be formed close
Sealing.
Rubber hardness is not less than 75 degree of shore hardness when using rubber seal, and hardness is too small, does not have sealing function,
When hardness is excessive, glass flange capillary may be damaged.
O shape rubber seal is conventional seal, and shape differs, and when reasonable in design, can realize seal request, when
During using odd-shaped cross section rubber seal, seal channel section shape and odd-shaped cross section rubber for placing special-shaped rubber seal
Glue seal cross sectional shape is identical.
Sealing member material can also be from materials such as polytetrafluoroethylene (PTFE), graphite.
It is enhancing sealing effectiveness, the quantity of sealing ring can be increased, is formed multi-sealed.
The type of attachment of vacuum valve, charge valve, pressure gauge on sealing liquid container has various, can be connected to liquid close
Envelope container lid（24）, such as in horizontal through hole（241）It is upper to pass through joint, pressure tight metal pipe, by vacuum valve, charge valve, pressure gauge
It is connected in measurement apparatus, it is also possible to connected vacuum valve, charge valve, pressure gauge by the metal derby of a processing connecting hole
Come.
The above, is only presently preferred embodiments of the present invention, is not the limitation for making other forms to the present invention, is appointed
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But it is every without departing from technical solution of the present invention content, according to technical spirit of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (8)
1. Manual pressure source can determine the experimental provision of multiple fluid pressure bulk temperature relation by Manual pressure generator and survey
Amount device composition, it is characterised in that：Manual pressure generator is by handwheel（1）, piston screw（2）, nut（3）, piston cylinder（4）、
Piston component（5）, hydraulic fluid cylinder（6）, joint (7) composition, piston component（5）Including spigot nut（8）, piston component main body
（9）, piston element（10）、（11）、（14）, piston seal（13）, clamp nut（12）, mercury is Manual pressure generator
Hydraulic fluid, measurement apparatus are by constant temperature circulating water leg（20）, glass flange capillary（21）, constant temperature circulating water leg seal
（22）, glass flange capillary flange gland（23）, sealing liquid container lid（24）, sealing liquid container（25）, glass method
Blue compress gasket（26）, glass flange capillary flange gland fixing bolt（27）, seal（28）, seal（29）, joint
（30）, constant temperature circulating water leg fixed structure, vacuum valve, charge valve, pressure gauge and for connecting vacuum valve, charge valve, pressure
Table and sealing liquid container（24）Attachment structure and the annex such as bolt composition, in sealing liquid container lid（24）There is water side
Flat through hole（241）, by horizontal through hole（241）Vacuum valve, charge valve, pressure gauge are connected in measurement apparatus, measurement apparatus
Respectively in cone, middle cylindrical, the sealing liquid of measurement apparatus is mercury to body interior upper and lower ends, and measurement apparatus are filled
The fluid for entering including but not limited to carbon dioxide, sulfur hexafluoride, ethane, freon 13, freon 23, fluid purity requirement mole
Percentage reaches 99.99%；Constant temperature circulating water leg fixed structure is by bolt（31）It is fixed on bolt hole（231）On, by perseverance
Four semi-circular grooves on temperature circulation water leg hold assembly（40）Cooperation, use bolt and constant temperature circulating water leg clamping part
Eight horizontal through hole on part（41）Cooperation, by constant temperature circulating water leg（20）It is vertically fixed on glass flange capillary flange
Gland（23）On, by joint（7）, joint（30）Using pressure tight metal pipe, ferrule fitting by Manual pressure generator and measurement
Device is coupled together.
2. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Constant temperature circulating water leg hold assembly in itself height and constant temperature circulating water leg（20）The ratio between height is 1: 8~1
: 20, constant temperature circulating water leg hold assembly is arranged on bolt（31）Bottom, bolt（31）Height is at 6~10 centimetres.
3. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Measurement apparatus are along glass flange capillary（21）Horizontal plane installation is axially perpendicular to, Manual pressure generator
Joint（7）, measurement apparatus joint（30）It is respectively positioned on bottom, hydraulic fluid cylinder（6）Hydraulic fluid is less than level when volume is maximum
Through hole（241）.
4. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Hydraulic fluid cylinder（6）Working liquid volume can be discharged more than Manual pressure generator and measurement apparatus connecting tube
Road volume and at least 10 milliliters of confined space volume sum in measurement apparatus.
5. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Horizontal through hole（241）, its position corresponds to sealing liquid container lid（24）Interior ramp area, from sealing fluid
Body container lid（24）Bottom calculates, and its horizontal center position is in sealing liquid container lid（24）Arrived at 2/3rds of height
Five/everywhere, charge valve, vacuum valve, manometric joint level are higher than horizontal through hole（241）Horizontal center line.
6. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Glass flange capillary（21）The ratio between flange outer diameter and capillary glass tube external diameter are 5: 1~8: 1.
7. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Sealing liquid container lid（24）Conical centre's line, sealing liquid container（25）Conical centre's line and glass method
Blue capillary（21）Longitudinal center line is on same vertical line.
8. Manual pressure source according to claim 1 can determine the experimental provision of multiple fluid pressure bulk temperature relation,
It is characterized in that：Glass flange capillary flange gland fixing bolt（27）The preferably interior hexagonal cylindrical hook bolt of bolt.
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