CN211716234U

CN211716234U - Quick seal pot and sample desorption pot based on seal pot

Info

Publication number: CN211716234U
Application number: CN202020231944.0U
Authority: CN
Inventors: 宜伟; 王涛
Original assignee: Wuhan Paleozoic Testing Technology Co ltd
Current assignee: Wuhan Paleozoic Testing Technology Co ltd
Priority date: 2020-02-29
Filing date: 2020-02-29
Publication date: 2020-10-20
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a quick seal pot and sample desorption jar based on seal pot, which comprises a tank body, lid, jar body top lateral wall has two at least recesses along circumference evenly distributed, and the lid lower extreme is equipped with the station hole that corresponds with the recess, installs one in every station hole and can eccentrically rotate the shifting block, makes the shifting block stop the relative jar body displacement of lid with the recess cooperation after to station downthehole rotation, and the inboard top of lid is equipped with the sealed pad of mutually supporting with jar body top, and the lid top is equipped with the blast pipe, installs discharge valve on the blast pipe. The sample desorption tank based on the sealing tank is characterized in that a sealing piston capable of moving up and down along an inner cavity of the tank body is arranged in the tank body, the lower end of an exhaust pipe penetrates through a cover body and the sealing piston to conduct air, the sealing piston is integrally connected with the exhaust pipe, threads matched with each other are arranged on the periphery of the exhaust pipe and the inner periphery of a through hole for penetrating through the exhaust pipe on the cover body, the length of the exhaust pipe penetrating into a cavity is fixed and adjustable, and a sealing ring matched with the inner periphery of the tank.

Description

Quick seal pot and sample desorption pot based on seal pot

Technical Field

Relate to coal bed gas development technical field, in particular to seal structure of special sample jar of coal bed gas, shale gas adsorption test still relates to the sample desorption jar based on seal jar.

Background

Coal bed gas and shale gas are natural gas which can cause coal bed or shale to be in an adsorption, free or dissolved state. In a conventional natural gas reservoir, free gas and dissolved gas are generally mainly used, and basically no adsorbed gas exists, while in an unconventional natural gas reservoir such as a coal bed, shale and the like, the content of the adsorbed gas and the content of the free gas in the coal bed and the shale are generally more than 90%, and the content of the adsorbed gas and the content of the free gas in the adsorbed gas are directly related to the enrichment degree of the natural gas and the development technology, particularly for unconventional natural gas such as coal bed gas, shale gas and the like, the content measurement of the adsorbed gas and the free gas is a key factor for reservoir evaluation, reserve estimation and development design. Therefore, the test experiment of the content of the natural gas adsorbed gas and the free gas in the gas-containing sample is an important work in unconventional natural gas exploration and development.

The number of relevant patents of the sample tank of the isothermal adsorption instrument is large, and Chinese patent CN208187895U 'a special sample tank for isothermal adsorption instrument' can be conveniently and quickly disassembled and hermetically installed, so that leakage is prevented, disassembly and cleaning can be carried out, and the next use is convenient. The Chinese patent CN 201874566U sample tank special for the isothermal adsorption instrument can prevent fine particle samples from being sprayed out of the sample tank under high pressure, prevent fine particle rock samples from migrating from a sample bin of the adsorption instrument to a pipeline under high pressure, prevent the pipeline and instruments from being blocked and polluted, and is suitable for being popularized and used in the isothermal adsorption instrument. However, the cover body and the tank body are combined by using a thread or a buckle, the cover body and the tank body are not easy to detach or fasten, the operation is time-consuming, the isothermal adsorption experiment of the rock sample needs to open the cover body, put the steel ball, the rock sample or the emptied tank body in times, repeat the operation for many times, tens of minutes of operation time is needed for each operation, and when experiments are needed to be carried out on a large number of samples, the problem of operation time consumption becomes more prominent.

A desorption tank is also used when the gas content of a rock mass is measured, the Chinese patent CN203241314U 'a desorption tank', the volume in the desorption tank is fixed, in order to consider a sample with larger length, the desorption tank is usually larger, so that when the sample is shorter, a large amount of fillers (quartz sand, small steel balls, glass balls and the like) need to be filled in the tank, and the fillers meeting the requirements cannot be obtained at a test site and need to be sent to the site together with equipment. The traditional desorption tank not only influences the testing precision, but also increases the cost and burden for the logistics work. The Chinese patent CN206161466U Desorption tank for measuring gas content adjusts the volume of the desorption tank through the low-resistance piston, but the liquid discharge valve and the low-resistance piston have poor sealing performance, water is easy to generate steam to lift the low-resistance piston to influence the measurement precision, and the operation is complex.

SUMMERY OF THE UTILITY MODEL

Open and close desorption jar operating procedure many among the prior art for solving, problem long consuming time, the utility model provides a technical scheme as follows:

the utility model provides a quick seal pot, includes a jar body, lid, jar body top lateral wall has two at least recesses along circumference evenly distributed, the lid lower extreme be equipped with the station hole that the recess corresponds, but install one in every station hole and eccentrically rotate the shifting block, make the shifting block to the station downthehole back of rotating with the relative jar of body displacement of lid is prevented in the recess cooperation, the inboard top of lid is equipped with the sealed pad of mutually supporting with jar body top, the lid top is equipped with the blast pipe, installs discharge valve on the blast pipe.

Preferably, the shifting direction of the shifting block is arranged along the axial direction of the cover body, one end of the shifting block is hinged with the bottom end or two sides of the top end of the working hole, and the other end of the shifting block is connected with the shifting rod.

Further, based on the sample desorption jar of seal pot, including sealed piston, sealed piston and jar internal chamber cooperation and can follow jar internal chamber and move from top to bottom, this sealed piston separates into upper portion cavity and lower part sample chamber with jar internal chamber and is connected with the blast pipe, the blast pipe lower extreme passes lid, sealed piston intercommunication sample chamber, and the blast pipe periphery is equipped with the screw thread of mutually supporting with the through-hole inner periphery that supplies to pass the blast pipe on the lid, makes the blast pipe go deep into the length of cavity fixed and adjustable, and sealed piston periphery is equipped with the sealing washer with jar internal periphery complex.

Preferably, a handle is arranged at the top of the cover body.

Compared with the prior art, the utility model discloses an operating procedure:

stir the driving lever and make the shifting block keep away from the working hole, alright open the lid and take out blast pipe and sealing piston, arrange the sample in the sample chamber, then wipe clean jar inner wall of first half cavity, the suitable low point back of sample upper end is pressed to the sealing piston to the rethread blast pipe, then cover the lid, stir the driving lever and make the shifting block slide in the working hole with the recess cooperation, make the lid sealed again, place the desorption jar in the thermostatic waterbath, discharge valve opens and is connected to gaseous collection instrument reading gas volume, the record data.

Drawings

Fig. 1 is a schematic structural view of the sealing can of the present invention;

fig. 2 is a schematic structural diagram of the desorption tank of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1, a quick seal jar, including a jar body 1, lid 5, jar body 1 top lateral wall has two at least recesses 2 along circumference evenly distributed, lid 5 lower extreme be equipped with the station hole 6 that recess 2 corresponds, but install an eccentric rotation shifting block 7 in every station hole 6, make shifting block 7 to 6 internal rotations back of station hole with recess 2 cooperation stop lid 5 relative jar body 1 displacement, lid 5 inboard top and jar body 1 top are equipped with the sealed 4 that mutually supports, lid 5 top is equipped with blast pipe 10, installs discharge valve 9 on the blast pipe 10, and blast pipe 10 is used for deriving the desorption gas of jar body 1, or to leading-in gas in the jar body 1.

As the optimization of the technical scheme of the embodiment, the shifting direction of the shifting block 7 is arranged along the axial direction of the cover body 5, one end of the shifting block 7 is hinged with the bottom end or two sides of the top end of the working hole 6, and the other end of the shifting block 7 is connected with the shifting rod 3.

When the stirring direction of the stirring block 7 and the opening direction of the working hole 6 are horizontal directions, the stirring block 7 is matched with the groove 2 in the same way when stirred into the working hole 6, and the cover body 5 is locked.

Compared with the prior art, the method comprises the following operation steps:

when the cover body is covered, the shifting rod is shifted to enable the shifting block to slide into the working hole to be matched with the groove, and the cover body can be sealed.

Example 2

As shown in fig. 2, a sample desorption tank based on the sealed tank of embodiment 1 comprises a sealing piston 12, the sealing piston 12 is engaged with the inner cavity of the tank body 1 and can move up and down along the inner cavity of the tank body 1, the sealing piston 12 divides the inner cavity of the tank body 1 into an upper cavity 13 and a lower sample cavity 14 and is connected with an exhaust pipe 10, the lower end of the exhaust pipe 10 penetrates through the cover body 5 and the sealing piston 12 to be communicated with the sample cavity 14, the outer periphery of the exhaust pipe 10 and the inner periphery of a through hole of the cover body 5 for penetrating through the exhaust pipe 10 are provided with mutually engaged threads, so that the length of the exhaust pipe 10 penetrating into the cavity 13 is fixed and adjustable, and the top. The outer periphery of the sealing piston 12 is provided with a sealing ring 15 which is matched with the inner periphery of the tank body 1.

The utility model discloses a jar body, including the lid, the lid is equipped with lid 5, the lid is equipped with the lid, the lateral wall of jar body 1 top has two at least recesses 2 along circumference evenly distributed, 5 lower extremes of lid be equipped with the station hole 6 that recess 2 corresponds, but install one eccentric rotation shifting block 7 in every station hole 6, make shifting block 7 to 6 internal rotations of station hole back with recess 2 cooperation stop the lid 5 relative jar of body 1 displacement, 5 inboard top of lid and jar body 1 top are equipped with the sealed pad 4 of mutually supporting, and discharge valve 9 is installed to the part of blast pipe 10 outside the lid 5, and blast pipe 10 is used for deriving the desorption gas of jar body 1, or to leading.

Claims

1. The utility model provides a quick seal pot, includes a jar body, lid, its characterized in that, jar body top lateral wall has two at least recesses along circumference evenly distributed, the lid lower extreme be equipped with the station hole that the recess corresponds, but install one in every station hole and eccentrically rotate the shifting block, make the shifting block to the station downthehole back of rotating with the relative jar body displacement of lid is prevented in the recess cooperation, the inboard top of lid is equipped with the sealed pad of mutually supporting with jar body top, the lid top is equipped with the blast pipe, installs discharge valve on the blast pipe.

2. The rapid sealing tank of claim 1, wherein the shifting direction of the shifting block is arranged along the axial direction of the cover body, one end of the shifting block is hinged with the bottom end or two sides of the top end of the working hole, and the other end of the shifting block is connected with the shifting rod.

3. The sample desorption tank of the quick seal tank as claimed in claim 1, which comprises a sealing piston, wherein the sealing piston is matched with the inner cavity of the tank body and can move up and down along the inner cavity of the tank body, the sealing piston divides the inner cavity of the tank body into an upper cavity and a lower sample cavity and is connected with an exhaust pipe, the lower end of the exhaust pipe penetrates through the cover body and the sealing piston to communicate with the sample cavity, the outer periphery of the exhaust pipe and the inner periphery of a through hole for the exhaust pipe to penetrate through on the cover body are provided with mutually matched threads, the length of the exhaust pipe penetrating into the cavity is fixed and adjustable, and the outer periphery of the sealing piston.

4. The sample desorption pot of claim 3 wherein the top of the cover is provided with a handle.