CN203811317U - Device for measuring saturated vapor pressure of liquid in static equilibrium method - Google Patents
Device for measuring saturated vapor pressure of liquid in static equilibrium method Download PDFInfo
- Publication number
- CN203811317U CN203811317U CN201420152459.9U CN201420152459U CN203811317U CN 203811317 U CN203811317 U CN 203811317U CN 201420152459 U CN201420152459 U CN 201420152459U CN 203811317 U CN203811317 U CN 203811317U
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- vertical tube
- liquid
- thermometer
- water bath
- surge flask
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Abstract
The utility model relates to a device for measuring the saturated vapor pressure of a liquid in a static equilibrium method. the device comprises a water bath tank, a constant temperature water inlet is arranged in the lower part of one side of the water bath tank, a water outlet is arranged in the upper part of one side being opposite to the water inlet, a balance pipe is arranged in the water bath tank, the balance pipe comprises a first vertical tube and a second vertical tube, the first vertical tube is arranged in the second vertical tube, the bottom of the first vertical tube is provided with gas vents, a thermometer is arranged in the first vertical tube, the other end of the thermometer penetrates the top of the second vertical tube, the first vertical tube is fixed in the cavity of the second vertical tube through the thermometer, a condenser tube is connected with the upper portion of the second vertical tube, the condenser tube is connected with a numerical pressure gauge and a surge flask through conduits, the surge flask is connected with a vacuum pump, and the upper portion of the surge flask is provided with an exhaust valve. According to the utility model, a liquid to be measured can be added into the device conveniently, the phenomenon that air flows backward can be reduced when the saturated vapor pressure of the liquid is measured.
Description
Technical field
The utility model relates to a kind of static balancing method and measures hold-up vapour pressure device, belongs to experimental instrument and equipment technical field.
Background technology
At a certain temperature, the vapor pressure with neat liquid when the equilibrium state, is called the saturated vapor pressure of liquid at this temperature, and the vapour pressure of pure material is one of important thermodynamic parameter of material, is important petrochemical basic data.In Basic physics experimental education and scientific research, the device of measuring hold-up vapour pressure comprises calibration cell, tensimeter, air pump, in calibration cell, be provided with balance pipe, the upper end of balance pipe connects condenser pipe, condenser pipe is communicated with tensimeter and air pump by conduit, and wherein balance pipe is the core component of saturated vapor pressure determinator, and existing balance pipe is made difficulty, while finding time, easily cause that air pours in down a chimney, and causes the failure of an experiment; In addition, the reinforced difficulty of testing liquid is large, is difficult for balance pipe to clean.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of static balancing method to measure hold-up vapour pressure device, and this device conveniently adds and takes out testing liquid, and can reduce air and pour in down a chimney phenomenon occurrence probability.
For achieving the above object, the utility model adopts following scheme:
A kind of static balancing method is measured hold-up vapour pressure device, comprise water bath, the bottom of water bath one side is provided with constant temperature water inlet, and the top of a relative side is provided with water delivering orifice, and balance pipe is positioned at water bath, described balance pipe comprises the first vertical tube and the second vertical tube, the first vertical tube is positioned at the second vertical tube, and the first vertical tube bottom is provided with vent port, and inside is provided with thermometer, the other end of thermometer passes from the top of the second vertical tube, and the first vertical tube is fixed in the chamber of the second vertical tube by thermometer; The top of described the second vertical tube is connected with condenser pipe, and described condenser pipe is connected with surge flask with numerical pressure table by conduit, and described surge flask is connected with vacuum pump, and surge flask top is provided with vent valve.
Described vacuum pump is water circulating pump.
The beneficial effects of the utility model are:
(1) balance pipe can be by improving on the basis of existing test tube, and preparation is than being easier to, and without crooked pipeline, conveniently adds and take out testing liquid, easy to clean;
(2) there will not be air to pour in down a chimney phenomenon, when the pressure in the second vertical tube is greater than the pressure in the first vertical tube, testing liquid is full of the first chamber at the most, and liquid level in the second vertical tube is still on the first vertical tube tapping, air cannot enter the first vertical tube, therefore can not cause suck-back.
(3) vacuum pump adopts water circulating pump, without using machine oil as operation material, has reduced the pollution to experimental subjects.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals:
1-water bath; 2-the first vertical tube; 3-the second vertical tube; 4-thermometer; 5-constant temperature water inlet; 6-water delivering orifice; 7-condenser pipe; 8-numerical pressure table; 9-surge flask; 10-vacuum pump; 11-vent valve.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described, the utility model discloses a kind of static balancing method and measure hold-up vapour pressure device, comprise water bath 1, the bottom of water bath 1 one sides is provided with constant temperature water inlet 5, the top of a relative side is provided with water delivering orifice 6, balance pipe is positioned at water bath 1, described balance pipe comprises the first vertical tube 2 and the second vertical tube 3, the first vertical tube 2 is positioned at the second vertical tube 3, the first vertical tube 1 bottom is provided with vent port, inside is provided with thermometer 4, the other end of thermometer 4 passes from the top of the second vertical tube 3, the first vertical tube 2 is fixed in the chamber of the second vertical tube 3 by thermometer 4, the top of described the second vertical tube 3 is connected with condenser pipe 7, and described condenser pipe 7 is connected with surge flask 9 with numerical pressure table 8 by conduit, and described surge flask 9 is connected with vacuum pump 10, and surge flask 9 tops are provided with vent valve 11, and described vacuum pump 11 adopts water circulating pump.
Assay method is: in the first vertical tube, pack testing liquid into, the second vertical tube is usingd testing liquid as confining liquid, before mensuration, need be by balance pipe and be dissolved in air emptying in liquid to be measured, ON cycle pump passes into thermostatted water in water bath, heating water bath testing liquid, control temperature higher than testing liquid boiling point 3-5 ℃, keep time temperature 5min, remove in balance pipe and be dissolved in the air in testing liquid, then regulate the liquid level in the first vertical tube and the second vertical tube, when the liquid level of the first vertical tube and the second vertical tube is during in same level, pressure on the second vertical tube liquid level is the saturated vapor pressure of testing liquid, pressure on the second vertical tube liquid level is measured by numerical pressure table.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (2)
1. a static balancing method is measured hold-up vapour pressure device, it is characterized in that, comprise water bath, the bottom of water bath one side is provided with constant temperature water inlet, the top of a relative side is provided with water delivering orifice, balance pipe is positioned at water bath, described balance pipe comprises the first vertical tube and the second vertical tube, the first vertical tube is positioned at the second vertical tube, the first vertical tube bottom is provided with vent port, inside is provided with thermometer, and the other end of thermometer passes from the top of the second vertical tube, and the first vertical tube is fixed in the chamber of the second vertical tube by thermometer; The top of described the second vertical tube is connected with condenser pipe, and described condenser pipe is connected with surge flask with numerical pressure table by conduit, and described surge flask is connected with vacuum pump, and surge flask top is provided with vent valve.
2. a kind of hold-up vapour-pressure test device as claimed in claim 1, is characterized in that, described vacuum pump is water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152459.9U CN203811317U (en) | 2014-04-01 | 2014-04-01 | Device for measuring saturated vapor pressure of liquid in static equilibrium method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152459.9U CN203811317U (en) | 2014-04-01 | 2014-04-01 | Device for measuring saturated vapor pressure of liquid in static equilibrium method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811317U true CN203811317U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152459.9U Expired - Fee Related CN203811317U (en) | 2014-04-01 | 2014-04-01 | Device for measuring saturated vapor pressure of liquid in static equilibrium method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811317U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330331A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Device for testing saturated vapor pressure of liquid substance under high-temperature condition |
| CN104330328A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Using method of device for testing saturated vapor pressure of liquid substance under high-temperature condition |
| CN104932591A (en) * | 2015-05-28 | 2015-09-23 | 大连海事大学 | Automatic saturated vapor pressure measurer and measuring method thereof |
| CN104949791A (en) * | 2015-06-23 | 2015-09-30 | 江苏大学 | Balanced type pressure detection method and balanced type pressure detection device for gas pressure |
| CN106052945A (en) * | 2016-05-11 | 2016-10-26 | 浙江大学 | Solution configuration method used for vapor pressure measurement and vapor pressure measurement method |
| CN109541102A (en) * | 2018-11-20 | 2019-03-29 | 中广核研究院有限公司 | A kind of device and method of volatile organic matter vapour pressure measurement |
-
2014
- 2014-04-01 CN CN201420152459.9U patent/CN203811317U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330331A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Device for testing saturated vapor pressure of liquid substance under high-temperature condition |
| CN104330328A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Using method of device for testing saturated vapor pressure of liquid substance under high-temperature condition |
| CN104330328B (en) * | 2014-10-22 | 2016-09-21 | 中国石油化工股份有限公司青岛安全工程研究院 | A kind of using method of test liquid material saturated vapor pressure device under the high temperature conditions |
| CN104932591A (en) * | 2015-05-28 | 2015-09-23 | 大连海事大学 | Automatic saturated vapor pressure measurer and measuring method thereof |
| CN104949791A (en) * | 2015-06-23 | 2015-09-30 | 江苏大学 | Balanced type pressure detection method and balanced type pressure detection device for gas pressure |
| CN104949791B (en) * | 2015-06-23 | 2017-06-27 | 江苏大学 | A kind of balanced type gas pressure pressure testing method and device |
| CN106052945A (en) * | 2016-05-11 | 2016-10-26 | 浙江大学 | Solution configuration method used for vapor pressure measurement and vapor pressure measurement method |
| CN109541102A (en) * | 2018-11-20 | 2019-03-29 | 中广核研究院有限公司 | A kind of device and method of volatile organic matter vapour pressure measurement |
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Legal Events
| 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 |
Granted publication date: 20140903 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |