JP2005189127A - Vessel for observation of circulation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vessel for observation of circulation capable of sufficiently withstanding uses under elevated temperature and high pressure, in which a solution of a sample for observation is filled and circulated while making light pass through the sample so as to observe the circulation state with eyes directly. <P>SOLUTION: The vessel for observation of circulation is characterized in that in the vessel main body 1 provided with a sample inlet tube part 2 and a sample outlet tube part 3 opposing to each other, the visible observation path cylinder 4, in the center of which the flow path 4a is formed by boring, is positioned between the sample inlet pipe part 2 and the outlet part 3, and is hermetically press connected to both the pipe parts 2, 3 while interleaving the seals 6 like TTS seals. Moreover, on the openings provided on both the sides of the vessel main body 1, the transparent window plates 7, 7 are provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a flow observation container for injecting a solution, which is an observation sample, into a container, and allowing light to pass through the flow sample while flowing the solution, and observing the flow state.

When mixing and reacting the sample fluid in the tube, it is necessary to confirm the mixing mechanism and the presence or absence of precipitation. In that case, it is indispensable to perform observation using visual light using a transparent tube. In other words, observing the flow of fluid and the mixing of two fluids is an extremely important factor when building a new process. And in order to observe this, it is indispensable to visualize the flow path. (For example, see the microscopic observation container described in Patent Document 1) However, in the case of high-temperature and high-pressure conditions, it was very difficult to produce a transparent flow tube due to strength problems.
In addition, as a means for sealing the window plate for the observation described above, a ring-shaped seal packing is formed of Inconel material, and a gold ring is formed on the ring structure to form a hollow structure ring having a space between the front and back surfaces. (See the sealing mechanism described in Patent Document 2). The packing was developed by the pressure-resistant glass industry, the applicant of the present invention, and handled under the name “TTS seal”.
Japanese Patent Application No. 2002-31580 Japanese Patent No. 3354886

  Such high-temperature and high-pressure fluid is usually distributed by metal piping. However, visual observation is impossible with such a thing. For this reason, it is conceivable to replace the material with a transparent material only where the observation is desired.

  As described above, even if only the portion to be observed is replaced with a transparent material, in this case, the hermetic connection of the replaced transparent material (for example, connection to a container body made of a metal material) is a problem. . That is, transparent materials such as quartz, sapphire, and diamond have no stickiness, and a so-called sealing method of pressing down must be used for connection.

  However, in this case, the occurrence of distortion due to pressing leads to cracking of the transparent material that is the window portion at high temperature and high pressure, and therefore, how to suppress such distortion is a problem.

In the present invention, a visible observation flow channel cylinder 4 formed by hollowing out a flow passage 4a at the center in a container body 1 having a sample introduction tube portion 2 and a sample discharge tube portion 3 corresponding to each other is provided. It is positioned between the part 2 and the sample discharge pipe part 3 and is hermetically crimped and connected to the pipe parts 2 and 3 with a seal 6 such as a TTS seal interposed therebetween. The flow observing vessel is characterized in that transparent window plates 7 and 7 are stretched on the opening formed in the above.

  In the present invention, the visible observation channel cylinder 4 is made of sapphire, the transparent window plates 7 and 7 are made of quartz, and the sample introduction tube portion M that receives two types of sample fluids as the sample introduction tube portion. This makes it possible to observe the mixed form of the two types of sample fluids by using the above, and these are the embodiments of the present invention.

In the flow observation container of the present invention, the visible observation flow path cylinder 4 formed by hollowing out the flow passage 4a at the center is positioned between the sample introduction tube portion 2 and the sample discharge tube portion 3, and is similar to a TTS seal. Since a simple seal 6 is interposed and the tube parts 2 and 3 are pressure-tightly connected to each other, the sample fluid can be observed directly and visually.
The visible observation flow path cylinder 4 is made of sapphire and the transparent window plates 7 and 7 are made of quartz, so that the observation under high temperature and high pressure can be tolerated. That is, the mixing part could be observed well under the conditions of 400 ° C. and 45 MPa, and the pressure resistance test with a hand pump was conducted, and it was confirmed that the test of 100 MPa was cleared at 500 ° C.

1 to 3 show an embodiment of the present invention, and FIG. 4 is an explanatory sectional view schematically showing the basic configuration of a flow observation container according to the present invention.
1 to 3, reference numeral 1 denotes a container main body, and the main body 1 is provided with a sample introduction tube portion 2 and a sample discharge tube portion 3 corresponding to each other. In the main body 1, a visible observation flow path cylinder 4 to be described later is configured to be hermetically communicated with and fixed to the both pipe portions 2 and 3.
Reference numeral 2 a denotes a joint fitting for fixing the sample introduction tube portion 2, and 3 a denotes a joint fitting for fixing the sample discharge tube portion 3.

  4 is a visible observation flow path cylinder formed by hollowing out the flow passage 4a at the center, which is formed of a transparent material such as sapphire. Then, the visible observation flow channel cylinder 4 is positioned between the sample introduction tube portion 2 and the sample discharge tube portion 3 as shown in FIG. 4, and based on the screwing propulsion force of the joint fitting 2 a to the main body 1. 1 is configured to be fixed in the interior. Thus, a series of flow paths for the sample fluid, that is, the sample introduction tube portion 2, the visible observation channel cylinder 4, and the sample discharge tube portion 3 are formed.

  Reference numeral 6 denotes a seal for maintaining airtightness with respect to both end portions of the above-described visible observation flow path cylinder 4, and it is preferable to use “TTS seal” manufactured by Pressure Glass Industrial Co., Ltd. as the applicant of the present invention. The "TTS seal" is a seal using a hollow ring made of Inconel material, gold-plated, and provided with a space between the front and back surfaces. It is durable even in high temperature and high pressure environments where corrosion is likely to occur. In this way, stable airtightness can be maintained without sacrificing damage. Further, since the tightening torque is relatively small, the visible observation flow path cylinder 4 is less likely to be distorted. In the present invention, this “TTS seal” is adopted by paying attention to such characteristics.

  Reference numerals 7 and 7 denote transparent window plates, which are stretched on opening surfaces formed on both sides of the container body 1. The transparent window plates 7 are preferably formed of a quartz plate in order to minimize heat distortion. One of the window plates 7, 7 functions as a viewing window for observing the flow of the sample fluid flowing in the visible observation flow channel cylinder 4, and the window on the opposite side thereof. The plate is configured to function as a daylighting window.

  Reference numeral 8 denotes a cartridge heater loading portion provided in the container main body 1, and is configured to set the cartridge heater 8a and keep the container main body 1 at a high temperature as shown in FIG. That is, it is configured to function as a heat source for maintaining the high-temperature and high-pressure state of the sample fluid. Reference numeral 9 denotes a boss joint provided at a required position of the container body 1 for measuring the heater temperature.

  By the way, the embodiment shown in FIG. 4 is for observing the flow of one sample fluid by constituting a series of flow paths. In the embodiment shown in FIG. 5, the sample introduction tube portion M that accepts two types of sample fluids is used, and according to this, the mixed form of both sample fluids can be observed. The present invention thus enables the use of two embodiments.

  The visible observation channel cylinder 4 used in the present invention has a length of 20 mm, an outer diameter of 14 mm, and a flow passage 4 a formed by hollowing out in the center of about 2 mm in diameter. And general observation conditions are 400 degreeC and 45 Mpa, The mixing part was able to be observed favorably on these conditions. Moreover, when the pressure resistance test by the hand pump was conducted, the test of 100 MPa was cleared at 500 ° C.

It is a front view showing one Example of this invention. It is a top view same as the above. It is a bottom view same as the above. It is sectional drawing for description showing the basic composition of the distribution observation container concerning the present invention roughly. It is sectional drawing for description which represented schematically the other Example of the container for circulation observation which concerns on this invention.

Explanation of symbols

1 Container body 2 Sample introduction tube
2a Joint bracket 3 Sample discharge pipe
3a Joint fitting 4 Cylinder for visible observation flow path
4a Flow path 6 Seal 7 Transparent window plate 8 In the cartridge heater loading section
8a Cartridge heater 9 Boss joint M Sample introduction tube

Claims (5)

A visible observation flow channel cylinder (4) formed by hollowing out a flow passage (4a) at the center in a container body (1) having a sample introduction tube portion (2) and a sample discharge tube portion (3) corresponding to each other. ) Is positioned between the sample introduction tube portion (2) and the sample discharge tube portion (3) and is hermetically crimped and connected to both the tube portions (2, 3) with a seal (6) interposed therebetween. In addition, the distribution observation container characterized in that transparent window plates (7, 7) are stretched on the opening surfaces formed on both sides of the container body (1). The flow observation container according to claim 1, wherein a TTS seal is used as the seal (6). The flow observation container according to claim 1 or 2, wherein the visible observation flow path cylinder (4) is made of sapphire. The flow observation container according to any one of claims 1 to 3, wherein the transparent window plate (7, 7) is made of quartz. The sample introduction tube portion (M) that accepts two types of sample fluids as the sample introduction tube portion enables observation of the mixed form of the two types of sample fluids. The distribution observation container according to any one of the above.

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