CN205301119U - Survey device of liquid saturated vapor pressure and temperature relation - Google Patents
Survey device of liquid saturated vapor pressure and temperature relation Download PDFInfo
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- CN205301119U CN205301119U CN201521134101.4U CN201521134101U CN205301119U CN 205301119 U CN205301119 U CN 205301119U CN 201521134101 U CN201521134101 U CN 201521134101U CN 205301119 U CN205301119 U CN 205301119U
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- temperature relation
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Abstract
The utility model discloses a survey device of liquid saturated vapor pressure and temperature relation, including many mouthfuls of flasks, the upper end of many mouthfuls of flasks is equipped with the backward flow condenser pipe, the other end of backward flow condenser pipe is equipped with adjustable reflux ratio distilling head, still be equipped with fourth opening, the 5th opening and sixmo mouth on the adjustable reflux ratio distilling head, the sixmo mouth passes through the connecting pipe and first operating valve is connected, the other end of first operating valve is equipped with the pipe, the upper end of receiver is equipped with the minion mouth, the minion mouth passes through the connecting pipe and the condenser is connected, the condenser passes through the connecting pipe and the second operating valve is connected, the other end of second operating valve is connected on the pipe, be equipped with the third operating valve on the pipe, the other end and the vacuum pump connection of third operating valve. The utility model discloses with low costs, simple and efficient to handle, the test result is accurate, is applicable to the survey of liquid saturated steam pressure and temperature relation among the industrial production.
Description
Technical field
This utility model relates to hold-up vapour-pressure test device technique field, particularly relates to the determinator of a kind of hold-up steam pressure and temperature relation.
Background technology
The saturated vapor pressure of pure material refers at a certain temperature, and the pressure of steam during gas-liquid two-phase balance, this pressure is one of important thermodynamic parameter of material, is important petrochemical basic data. Proper use of, the Chemical Manufacture and the process such as technological design, new-product development of product it is frequently necessary to the saturated vapor pressure of hard objectives material, as: as the conduction oil of heat transport fluid, its performance in commercial Application process is had a significant impact by its saturated vapor pressure variation with temperature situation, if saturated vapor pressure is excessive under high temperature, its range of application will be made to be restricted; In para-aminophenol production process, the valve in claimed apparatus and pipeline pressure are not less than the saturated vapor pressure of material, and otherwise material can occur because of flash distillation at this place crystallization causing pipeline blockage; In rectification under vacuum separating technology, the saturated vapor pressure data of each component are the foundations of Rectification Tower Design and operation; In the R&D process of high efficiency mix refrigerant/liquefaction system, saturated vapor pressure also has important value. Thus, the saturated vapor pressure accurately obtaining liquid substance just seems particularly critical.
Experiment test is the most direct method obtaining liquid substance saturated vapor pressure, by measuring the boiling point of liquid under different pressures, it is possible to obtain the saturated vapour pressure of liquid and the relation curve of temperature. In current scientific research and producing, the device measuring hold-up vapour pressure includes temperature chamber, Pressure gauge, air pump, balance pipe it is provided with in temperature chamber, the upper end of balance pipe connects condensing tube, condensing tube is connected with Pressure gauge and air pump by conduit, but in experimental implementation process, balance pipe cleans difficulty; Testing liquid application of sample difficulty is big; System pressure regulates difficulty, wayward, it is easy to cause the failure of test. Therefore, the determinator of a kind of easy and simple to handle, saturated vapor pressure that result of use is good need to be designed.
Utility model content
The purpose of this utility model is to solve the shortcoming existed in prior art, and the determinator of a kind of hold-up steam pressure proposed and temperature relation.
To achieve these goals, this utility model adopts the technical scheme that
A kind of determinator of hold-up steam pressure and temperature relation, including many mouthfuls of flasks, the lower end of described many mouthfuls of flasks is provided with magnetic force heating stirrer, the upper end of described many mouthfuls of flasks is provided with reflux condensing tube, the side of described reflux condensing tube is provided with the first opening and the second opening, the other end of described reflux condensing tube is provided with adjustable reflux ratio still head, the junction of described adjustable reflux ratio still head and reflux condensing tube is inserted with thermometer, the bottom of described adjustable reflux ratio still head is provided with the 3rd opening, described 3rd opening and receptor connect, described adjustable reflux ratio still head is additionally provided with the 4th opening, 5th opening and the 6th opening, described 6th opening is connected by connecting tube and the first operation valve, the other end of described first operation valve is provided with conduit, the upper end of described receptor is provided with the 7th opening, described 7th opening is connected by connecting tube and condenser, described condenser is connected by connecting tube and the second operation valve, the other end of described second operation valve is connected on conduit, described conduit is provided with the 3rd operation valve, the other end and the vacuum pump of described 3rd operation valve connect, the import department of described conduit is provided with nitrogen gas conveying device, described conduit is provided with Pressure gauge.
Preferably, described first opening and the second opening and running water pipe connect.
Preferably, described condenser is built with ethanol and dry ice.
Preferably, described vacuum pump is water circulating pump.
In this utility model, the many mouthfuls of convenient additions of round-bottomed flask and taking-up testing liquid, easy to clean; Be continually fed into nitrogen in system under vacuum pump duty, to obtain pressure in different systems, the flow being both easy to regulate nitrogen ensures that testing liquid is in inert atmosphere; Can be observed the condensing reflux situation of steam clearly by reflux condensing tube and adjustable reflux ratio still head, test result is accurate; It is low that device builds cost, simple and efficient to handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the determinator of a kind of hold-up steam pressure and the temperature relation that the utility model proposes.
In figure: 1 thermometer, 2 adjustable reflux ratio still heads, 21 the 4th openings, 22 the 5th openings, 23 the 6th openings, 24 the 7th openings, 3 reflux condensing tubes, 31 first openings, 32 second openings, 4 receptors, more than 5 mouthful of flask, 6 magnetic force heating stirrers, 7 conduits, 71 Pressure gauges, 72 first operation valves, 73 second operation valves, 74 the 3rd operation valve, 8 condensers, 9 vacuum pumps, 10 nitrogen gas conveying devices.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.
With reference to Fig. 1, a kind of determinator of hold-up steam pressure and temperature relation, including many mouthfuls of flasks 5, the lower end of many mouthfuls of flasks 5 is provided with magnetic force heating stirrer 6, the upper end of many mouthfuls of flasks 5 is provided with reflux condensing tube 3, the side of reflux condensing tube 3 is provided with the first opening 31 and the second opening 32, the other end of reflux condensing tube 3 is provided with adjustable reflux ratio still head 2, the junction of adjustable reflux ratio still head 2 and reflux condensing tube 3 is inserted with thermometer 1, thermometer 1 is for measuring the temperature of steam during liquid boiling, the bottom of adjustable reflux ratio still head 2 is provided with the 3rd opening, 3rd opening and receptor 4 connect, adjustable reflux ratio still head 2 is additionally provided with the 4th opening 21, 5th opening 22 and the 6th opening 23, 6th opening 23 is connected by connecting tube and the first operation valve 72, the other end of the first operation valve 72 is provided with conduit 7, the upper end of receptor 4 is provided with the 7th opening 24, 7th opening 24 is connected by connecting tube and condenser 8, condenser 8 is connected by connecting tube and the second operation valve 73, the other end of the second operation valve 73 is connected on conduit 7, conduit 7 is provided with the 3rd operation valve 74, the other end and the vacuum pump 9 of the 3rd operation valve 74 connect, the import department of conduit 7 is provided with nitrogen gas conveying device 10, conduit 7 is provided with Pressure gauge 71, conduit 7 is connected with the adjustable nitrogen of flow, for changing the pressure in device system, prevent outside air from entering enclosed system simultaneously, ensure that testing liquid is in inert environments,Pressure gauge 71, for the size of pressure in directive system, obtains pressure value accurately with this.
First opening 31 and the second opening 32 and running water pipe connect, the saturated vapor produced during for cooling down liquid to be measured boiling, condenser 8 is built with ethanol and dry ice, the test solution in connecting tube is entered with nitrogen for cooling down, to avoid test solution to pollute vacuum pump 9, vacuum pump 9 is water circulating pump, it is not necessary to uses machine oil as operation material, decreases the pollution to experimental subject;
When verifying attachment air-tightness is good, in many mouthfuls of flasks 5, load testing liquid, in system, pass into nitrogen afterwards, drain air therein; Open vacuum pump 9, regulate nitrogen flow and pressure in system is fixed on a certain particular value, testing liquid is heated to seething with excitement by magnetic force heating stirrer 6, make its steam in reflux condensing tube 3 internal reflux, keep this state 1520 minutes, recording reading when thermometer instruction is stablized, this temperature is the boiling point of this liquid under pressure. Pressure in change system, determine the boiling point of liquid under different pressures, choose numerical value five groups different, with the natural logrithm (LnP) of pressure, temperature (T) is mapped, the saturated vapour pressure of liquid and the relation curve of temperature can be obtained, such that it is able to calculate the saturated vapor pressure of liquid under arbitrary temp.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive according to the technical solution of the utility model and utility model thereof and be equal to replacement or change, all should be encompassed within protection domain of the present utility model.
Claims (4)
1. the determinator of a hold-up steam pressure and temperature relation, including many mouthfuls of flasks (5), it is characterized in that: the lower end of described many mouthfuls of flasks (5) is provided with magnetic force heating stirrer (6), the upper end of described many mouthfuls of flasks (5) is provided with reflux condensing tube (3), the side of described reflux condensing tube (3) is provided with the first opening (31) and the second opening (32), the other end of described reflux condensing tube (3) is provided with adjustable reflux ratio still head (2), the junction of described adjustable reflux ratio still head (2) and reflux condensing tube (3) is inserted with thermometer (1), the bottom of described adjustable reflux ratio still head (2) is provided with the 3rd opening, described 3rd opening and receptor (4) connect, described adjustable reflux ratio still head (2) is additionally provided with the 4th opening (21), 5th opening (22) and the 6th opening (23), described 6th opening (23) is connected by connecting tube and the first operation valve (72), the other end of described first operation valve (72) is provided with conduit (7), the upper end of described receptor (4) is provided with the 7th opening (24), described 7th opening (24) is connected by connecting tube and condenser (8), described condenser (8) is connected by connecting tube and the second operation valve (73), the other end of described second operation valve (73) is connected on conduit (7), described conduit (7) is provided with the 3rd operation valve (74), the other end and the vacuum pump (9) of described 3rd operation valve (74) connect, the import department of described conduit (7) is provided with nitrogen gas conveying device (10), described conduit (7) is provided with Pressure gauge (71).
2. the determinator of a kind of hold-up steam pressure according to claim 1 and temperature relation, it is characterised in that: described first opening (31) and the second opening (32) and running water pipe connect.
3. the determinator of a kind of hold-up steam pressure according to claim 1 and temperature relation, it is characterised in that: described condenser (8) is built with ethanol and dry ice.
4. the determinator of a kind of hold-up steam pressure according to claim 1 and temperature relation, it is characterised in that: described vacuum pump (9) is water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134101.4U CN205301119U (en) | 2015-12-29 | 2015-12-29 | Survey device of liquid saturated vapor pressure and temperature relation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134101.4U CN205301119U (en) | 2015-12-29 | 2015-12-29 | Survey device of liquid saturated vapor pressure and temperature relation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301119U true CN205301119U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134101.4U Expired - Fee Related CN205301119U (en) | 2015-12-29 | 2015-12-29 | Survey device of liquid saturated vapor pressure and temperature relation |
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| CN (1) | CN205301119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644817A (en) * | 2016-12-21 | 2017-05-10 | 华北电力大学 | Nitrogen saturated steam pressure measuring device based on engineering thermodynamics |
| CN109584688A (en) * | 2018-12-28 | 2019-04-05 | 陕西师范大学 | The Visualization Demo device of saturated vapor pressure and temperature relation |
-
2015
- 2015-12-29 CN CN201521134101.4U patent/CN205301119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644817A (en) * | 2016-12-21 | 2017-05-10 | 华北电力大学 | Nitrogen saturated steam pressure measuring device based on engineering thermodynamics |
| CN109584688A (en) * | 2018-12-28 | 2019-04-05 | 陕西师范大学 | The Visualization Demo device of saturated vapor pressure and temperature relation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20181229 |