CN203244962U - Hydrate reactor suitable for direct measurement of terahertz spectrum - Google Patents

Hydrate reactor suitable for direct measurement of terahertz spectrum Download PDF

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Publication number
CN203244962U
CN203244962U CN 201320240350 CN201320240350U CN203244962U CN 203244962 U CN203244962 U CN 203244962U CN 201320240350 CN201320240350 CN 201320240350 CN 201320240350 U CN201320240350 U CN 201320240350U CN 203244962 U CN203244962 U CN 203244962U
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hydrate
quartz window
tera
pipeline
applicable
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CN 201320240350
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Chinese (zh)
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赵昆
施宏杰
赵嵩卿
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China University of Petroleum Beijing
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China University of Petroleum Beijing
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Abstract

The utility model provides a hydrate reactor suitable for direct measurement of terahertz spectrum. The hydrate reactor comprises a cooling housing which is composed of a housing and a through pipeline horizontally arranged in the housing, and a pressure sensing element and a temperature sensing element; a sealed cavity accommodating a cooling medium is formed between the outer wall and the housing of the pipeline; a first quartz window and a second quartz window are arranged in the pipeline axially at intervals; the quartz windows are fixedly connected with the inner wall of the pipeline in a sealed manner; a hydrate generating space is formed between the first quartz window and the second quartz window; the hydrate generating space is communicated with the air supplying pipe and the water supplying pipe in a sealed manner; the reactor further comprises the pressure sensing element and the temperature sensing element for the testing of pressure and temperature of the hydrate generating space. According to the reactor provided by the utility model, hydrate production and testing are integrated as whole, the hydrate generated in the reactor can be tested in the terahertz optical path directly, so that steps of taking out in low temperature and tabletting are eliminated, time and cost are reduced, and the possibility of hydrate sample interference is avoided as well.

Description

Be applicable to the hydrate reaction still that tera-hertz spectra is directly measured
Technical field
The utility model is about a kind of hydrate reaction still, relates in particular to a kind of hydrate reaction still that tera-hertz spectra is directly measured that is applicable to.
Background technology
Gas hydrates (being commonly called as combustible ice) are a kind of natural ice shape solids that is present in a large number, the fuel gas such as a large amount of methane, ethane are rich in inside, estimate that carbon content is 2 times that the carbon reserves are verified in the present whole world in the global gas hydrates, be called as " future source of energy ".Combustible ice has different extraction values according to the difference of constituent and the difference of Determination of Alkane Content, therefore, is necessary before exploitation combustible ice to be carried out component and the content analysis of alkane.Utilizing Terahertz (Tera hz) technology that gas hydrates are characterized is present emerging characterizing method.As be published in the document " terahertz time-domain spectroscopy be used for structure I I type gas hydrate " (Treahertz Time Domain Spectroscopy for Structure-IIGas Hydrates) of Appl Phys Express2 (2009) 122303, document author is: Kei Takeya, Caihong Zhang, Lwao Kawayama, Hironaru Murakami, Peter Uhd Jepsen, Jian Chen, Peiheng Wu, Kazunari Ohgaki, and Masayoshi Tonouchi etc.
But doing experiment up to now all is to generate in advance combustible ice in reactor, then takes out combustible ice from reactor, and compressing tablet in low temperature chamber is put into the measuring instrument of low temperature chamber and measured; Because combustible ice takes out and measuring process from reactor, need to carry out in the low temperature chamber of a low temperature or high pressure, building and moving of described low temperature chamber all needs very high expense, and measuring process is also inconvenient, therefore, the experiment of terahertz light spectrometry hydrate caused puzzlement.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of hydrate reaction still that tera-hertz spectra is directly measured that is applicable to, to overcome the defective of prior art.
The utility model content
The purpose of this utility model is to provide a kind of hydrate reaction still that tera-hertz spectra is directly measured that is applicable to, the catchment compound production and measuring in one of this reactor, hydrate is directly measured in the Terahertz light path after generating in reactor, saved the step of taking-up, compressing tablet in low temperature chamber, save time and cost, and avoided the disturbed possibility of hydrate sample.
Another purpose of the present utility model is to provide a kind of hydrate reaction still that tera-hertz spectra is directly measured that is applicable to, and the foundation of having omitted low temperature chamber has reduced experimental cost.
The purpose of this utility model is achieved in that a kind of hydrate reaction still that tera-hertz spectra is directly measured that is applicable to, and described reactor comprises a cooling housing, and described cooling housing is made of the pipeline of shell and a perforation of horizontally set in this shell; Form the seal chamber that holds cooling medium between the outer wall of described pipeline and the described shell; In described pipeline, axially be fixed with the first quartz window and the second quartz window that the interval arranges, the shape of cross section of the shape of cross section of described two quartz windows and size and described pipeline and measure-alike, and quartz window and inner-walls of duct are sealedly and fixedly connected; Form the hydrate span between described the first quartz window and the second quartz window; Described hydrate span sealing is communicated in air supply pipe and feed pipe; Described reactor also includes pressure responsive element and the temperature sensitive member of monitoring hydrate span internal pressure and temperature.
In a better embodiment of the present utility model, fix sheathed certain position spacer ring in the inner-walls of duct between described the first quartz window and the second quartz window; The inner face that described the first quartz window is relative with the second quartz window is resisted against respectively the both sides of location spacer ring; The thickness of described location spacer ring is 0.2~5mm.
In a better embodiment of the present utility model, the outer face of described the first quartz window and the second quartz window is respectively by the first fixed part and the second fixed part location and fixing that are connected on the inner-walls of duct.
In a better embodiment of the present utility model, the axially interior outer face of described the first quartz window and the second quartz window is parallel mutually.
In a better embodiment of the present utility model, described the first fixed part and the second fixed part are loop configuration.
In a better embodiment of the present utility model, the cross section of described pipeline is circle, rectangle or polygon.
In a better embodiment of the present utility model, described cooling housing is made by stainless steel material.
In a better embodiment of the present utility model, described cooling medium is circulating coolant, and described seal chamber top is provided with the circulating coolant inlet, and described seal chamber bottom is provided with the circulating coolant flow export.
In a better embodiment of the present utility model, described air supply pipe is connected with air-supplying valve, Pressure gauge, pressure-reducing valve, flowmeter and gas cylinder; Described feed pipe is connected with water supply valve; Described pressure responsive element and temperature sensitive member are connected with control and display unit.
In a better embodiment of the present utility model, be positioned at and be respectively equipped with an insulation thin slice on the cooling housing sidewall of pipe ends; Described insulation thin slice is made by polyethylene or quartz material; Described insulation thin slice both sides smooth smooth and with cooling housing sidewall close contact; Form respectively a sealed thermal insulating chamber in the pipeline of each insulation thin slice inboard, described sealed thermal insulating is filled with nitrogen or inert gas in the chamber.
From the above mentioned, the utility model is applicable to the hydrate reaction still that tera-hertz spectra is directly measured, its compound production and measuring in one of catchmenting, after generating in reactor, can directly in the Terahertz light path, measure in hydrate, saved the step of taking-up, compressing tablet in low temperature chamber, save time and cost, and avoided the disturbed possibility of hydrate sample.The hydrate sample that generates in reactor is the smooth parallel laminar solid in two sides, is fit to utilize the Terahertz instrument to measure.The quartz window of both sides absorbs tera-hertz spectra is low, can directly measure in the Terahertz light path.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: for the utility model is applicable to the directly structural representation of the hydrate reaction still of measurement of tera-hertz spectra.
Fig. 2: be the side-looking structural representation of Fig. 1.
Fig. 3: be the structural representation of a kind of fixed form of quartz window in the utility model.
Fig. 4: be the structural representation of the another kind of fixed form of quartz window in the utility model.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As shown in Figure 1 and Figure 2, the utility model proposes a kind of hydrate reaction still 100 that tera-hertz spectra is directly measured that is applicable to, described reactor 100 comprises a cooling housing 1, and described cooling housing 1 is made of the pipeline 12 of shell 11 and a perforation of horizontally set in this shell 11; Form the seal chamber 8 that holds cooling medium between the outer wall of described pipeline 12 and the described shell 11; In the present embodiment, described cooling medium is circulating coolant, and described seal chamber 8 tops are provided with circulating coolant inlet 81, and described seal chamber 8 bottoms are provided with circulating coolant flow export 82; In described pipeline 12, axially be fixed with the first quartz window 21 and the second quartz window 22 that the interval arranges, the shape of cross section of described two quartz windows 21,22 shape of cross section and size and described pipeline 12 and measure-alike, and quartz window and inner-walls of duct are sealedly and fixedly connected, in order to improve sealing effectiveness, between described quartz window sidewall and pipeline 12 inwalls sealing ring (not shown) can be set; Form the hydrate span 3 between described the first quartz window 21 and the second quartz window 22; In the present embodiment, the hydrate span 3 pressure that can bear is not less than 5MPa; In order to improve its bearing strength, described the first quartz window 21 and the second quartz window 22 should be made thicklyer, and the wall thickness of described pipeline 12 also should be enough thick; The described hydrate span 3 sealings are communicated in air supply pipe 4 and feed pipe 5, and described air supply pipe 4 is connected with air-supplying valve, Pressure gauge, pressure-reducing valve, flowmeter and gas cylinder (being existing structure, not shown); Described feed pipe 5 is connected with the water supply valve (not shown); Described reactor 100 also includes pressure responsive element and the temperature sensitive member of monitoring hydrate span internal pressure and temperature; Described cooling housing 1 bottom is provided with support 9.
Above-mentionedly be applicable to the hydrate reaction still 100 that tera-hertz spectra directly measures multiple using method is arranged in use, now describe its use procedure with a kind of method wherein.
During on-test, first pass into water by feed pipe 5 to the hydrate span inside of reactor 100, add water and should not fill up whole hydrate reaction space, but should not be very little, amount of water should be greater than 3/4 of hydrate reaction space; After water flowing is complete, close the water supply valve of feed pipe 5; Passed into to hydrate reaction space 3 with pressure 3MPa by air supply pipe 4 and to want to produce the hydrate desired gas (for example: methane gas), in order to keep the constant voltage of 3MPa, venting process is not interrupted before reaction finishes; In the present embodiment, described pressure responsive element and temperature sensitive member are connected with control and display unit; Observe force value by the display unit that pressure responsive element connects, after pressure stability, circulating coolant begins circulation and is the reaction compartment refrigeration; The a little higher than zero degrees celsius of circulating coolant temperature, but the highlyest be no more than 2 degrees centigrade above freezing; Along with circulating coolant is lowered the temperature to the hydrate reaction space, hydrate begins to generate; Be separated by the set time by suprasil window observation hydrate generation situation; Observe the internal-response thing and no longer change when seeing through quartz window, and air supply pipe 4 flowmeter that connects can think that hydrate generates complete when also no longer changing.Close the air-supplying valve of air supply pipe 4 this moment, and disconnect air supply pipe 4 and the feed pipe 5 that reactor connects, cut off to be connected with temperature sensitive member with circulating coolant pipeline, pressure responsive element and be connected, place refrigerator to preserve (also can not put in the present embodiment, the refrigerator preservation and directly measure) reactor 100.
During measurement, from refrigerator, take out reactor 100, Bonding pressure sensing element, temperature sensitive member and circulating coolant pipeline, after circulating coolant is started working, reactor 100 is put into the Terahertz light path, thz beam needs axially to pass through suprasil window (that is: thz beam is axially by a side quartz window, the hydrate sample of generation, opposite side quartz window), arrives at last detector.Whole process need be observed temperature and pressure, and temperature must not be higher than 2 degrees centigrade, and pressure must not be higher than mixer design pressure.
From the above mentioned, the utility model is applicable to the hydrate reaction still that tera-hertz spectra is directly measured, its compound production and measuring in one of catchmenting, after generating in reactor, can directly in the Terahertz light path, measure in hydrate, saved the step of taking-up, compressing tablet in low temperature chamber, save time and cost, and avoided the disturbed possibility of hydrate sample.The hydrate sample that generates in reactor is the smooth parallel laminar solid in two sides, is fit to utilize the Terahertz instrument to measure.The quartz window of both sides absorbs tera-hertz spectra is low, can directly measure in the Terahertz light path.
Further, in the present embodiment, described cooling housing 1 is made by stainless steel material; The axially interior outer face of described the first quartz window 21 and the second quartz window 22 is parallel mutually; Fix sheathed certain position spacer ring 31 in the inner-walls of duct between described the first quartz window and the second quartz window, this location spacer ring 31 can adopt the prior art such as screw to be fixed on the inwall of pipeline 12; Described the first quartz window 21 is resisted against respectively the both sides of locating spacer ring 31 with the second quartz window 22 relative inner faces; The thickness of described location spacer ring 31 is 0.2~5mm; The outer face of described the first quartz window 21 and the second quartz window 22 is respectively by the first fixed part 71 and the second fixed part 72 location and fixing that are connected on the inner-walls of duct.
Such as Fig. 1, shown in Figure 3, in the present embodiment, described the first fixed part 71 and the second fixed part 72 are loop configuration, are fixed on pipeline 12 inwalls by screw respectively.Can certainly adopt other existing fixed form that two fixed parts are fixed on the pipeline.
As shown in Figure 4, in the present embodiment, inwall that can also pipeline 12 is set to step structure; The inwall of described location spacer ring and pipeline 12 is structure as a whole, internal diameter is set greater than the end difference 121 of location spacer ring internal diameter on the inner-walls of duct of spacer ring both sides, described location, described two quartz windows 21,22 are fixedly connected with end difference 121 inner wall sealings, and two relative inner faces of quartz window are resisted against respectively the both sides of location spacer ring; Described two fixed parts 71,72 are fixedly connected on respectively on end difference 121 outer faces, and with two quartz window location and fixing.
Further, in the present embodiment, the cross section of described pipeline 12 can be circle, also can be rectangle or polygon.
In the present embodiment, such as Fig. 1, Fig. 3, shown in Figure 4, be positioned at and be respectively equipped with an insulation thin slice 131,132 on the cooling housing sidewall of pipe ends; Described insulation thin slice is made by polyethylene or quartz material; Described insulation thin slice both sides smooth smooth and with cooling housing sidewall close contact; Form respectively a sealed thermal insulating chamber 141,142 in the pipeline of each insulation thin slice inboard, described sealed thermal insulating is filled with nitrogen or inert gas in the chamber.
In the present embodiment, described pressure responsive element is pressure sensor, and described temperature sensitive member is temperature sensor; As shown in Figure 1 and Figure 2, described temperature sensor is connected in control and display unit (not shown) outside the cooling housing 1 by a wire 61; Described pressure sensor is connected in control and display unit (not shown) outside the cooling housing 1 by a pressure monitoring pipe 62.
The utility model is applicable to the catchment compound production and measuring in one of hydrate reaction still that tera-hertz spectra directly measures, and reaction compartment is designed to the thin rounded flakes shape, makes the hydrate form of generation be particularly suitable for the detection of Terahertz system; Reactor provides firm transparent quartz window, and the convenient hydrate that detects generates state, also is fit to thz beam and passes through; This reactor can the conserve water compound detection time, omit the foundation of large-scale low-temperature chamber, save fund of scientific research; This reactor is reduced the temperature in hydrate reaction space by circulating coolant, help to reduce the pressure conditions that hydrate generates, and has reduced the reactor cost of manufacture; This reactor overall volume is little, is easy to carry and shifts, and also can put into easily refrigerator and preserve.
The above only is the schematic specific embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.

Claims (10)

1. one kind is applicable to the hydrate reaction still that tera-hertz spectra is directly measured, and it is characterized in that: described reactor comprises a cooling housing, and described cooling housing is made of the pipeline of shell and a perforation of horizontally set in this shell; Form the seal chamber that holds cooling medium between the outer wall of described pipeline and the described shell; In described pipeline, axially be fixed with the first quartz window and the second quartz window that the interval arranges, the shape of cross section of the shape of cross section of described two quartz windows and size and described pipeline and measure-alike, and quartz window and inner-walls of duct are sealedly and fixedly connected; Form the hydrate span between described the first quartz window and the second quartz window; Described hydrate span sealing is communicated in air supply pipe and feed pipe; Described reactor also includes pressure responsive element and the temperature sensitive member of monitoring hydrate span internal pressure and temperature.
2. the directly hydrate reaction still of measurement of tera-hertz spectra that is applicable to as claimed in claim 1 is characterized in that: fix sheathed certain position spacer ring in the inner-walls of duct between described the first quartz window and the second quartz window; The inner face that described the first quartz window is relative with the second quartz window is resisted against respectively the both sides of location spacer ring; The thickness of described location spacer ring is 0.2~5mm.
3. as claimed in claim 2ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: the outer face of described the first quartz window and the second quartz window is respectively by the first fixed part and the second fixed part location and fixing that are connected on the inner-walls of duct.
4. as claimed in claim 3ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: described the first quartz window and the second quartz window axially in the outer face parallel mutually.
5. as claimed in claim 3ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: described the first fixed part and the second fixed part are loop configuration.
6. as claimed in claim 1ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: the cross section of described pipeline is circular, rectangle or polygon.
7. as claimed in claim 1ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: described cooling housing is made by stainless steel material.
8. as claimed in claim 1ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: described cooling medium is circulating coolant, described seal chamber top is provided with the circulating coolant inlet, and described seal chamber bottom is provided with the circulating coolant flow export.
9. as claimed in claim 1ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: described air supply pipe is connected with air-supplying valve, Pressure gauge, pressure-reducing valve, flowmeter and gas cylinder; Described feed pipe is connected with water supply valve; Described pressure responsive element and temperature sensitive member are connected with control and display unit.
10. as claimed in claim 1ly be applicable to the hydrate reaction still that tera-hertz spectra is directly measured, it is characterized in that: be positioned on the cooling housing sidewall of pipe ends and be respectively equipped with an insulation thin slice; Described insulation thin slice is made by polyethylene or quartz material; Described insulation thin slice both sides smooth smooth and with cooling housing sidewall close contact; Form respectively a sealed thermal insulating chamber in the pipeline of each insulation thin slice inboard, described sealed thermal insulating is filled with nitrogen or inert gas in the chamber.
CN 201320240350 2013-05-07 2013-05-07 Hydrate reactor suitable for direct measurement of terahertz spectrum Expired - Lifetime CN203244962U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245540A (en) * 2013-05-07 2013-08-14 中国石油大学(北京) Hydrate reaction kettle suitable for direct measurement in terahertz spectrum
CN108760674A (en) * 2018-06-04 2018-11-06 大连理工大学 A kind of terahertz time-domain spectroscopy detection device for detecting biological neural sample

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245540A (en) * 2013-05-07 2013-08-14 中国石油大学(北京) Hydrate reaction kettle suitable for direct measurement in terahertz spectrum
CN108760674A (en) * 2018-06-04 2018-11-06 大连理工大学 A kind of terahertz time-domain spectroscopy detection device for detecting biological neural sample
CN108760674B (en) * 2018-06-04 2020-10-13 大连理工大学 Terahertz time-domain spectrum detection device for detecting biological nerve sample

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Granted publication date: 20131023

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