Fully-sealed quantitative dripping device

Abstract

The utility model discloses a full-sealed quantitative dripping device which comprises a quantitative pipettor which is hermetically mounted at the top of a box body of a box-type fluorescence detector in an inserting manner, and a sealed liquid storage device is arranged below the quantitative pipettor; the quantitative dripping device further comprises a titration mechanical arm assembly, a titration needle head is installed at the front end of the titration mechanical arm assembly, and the titration needle head, the quantitative pipettor and the closed liquid storage device are communicated through a burette line. According to the utility model, full-sealed and quantitative fluorescent drop illumination can be carried out in a box-type fluorescence detector, so that oil-gas possibility evaluation based on sample fluorescence is realized, and safe and rapid evaluation and auxiliary rapid decision-making of a well site are completed. The device is simple in overall design, compact in structure, convenient to mount and dismount, good in practicability and suitable for drop illumination of well site rock debris, wall core and rock core samples.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas exploration, in particular to a fully sealed hydraulic quantitative micro-droplet irradiation device. Background Art

[0002] During offshore oil exploration operations, oil and gas discovery is the primary geological task, and identification based on oil fluorescence is the primary and simplest method for this discovery. Fluorescence droplet illumination is an effective method for determining the oil and gas content of rock samples by extracting hydrocarbon compounds from rock samples using organic solvents (acetone or chloroform) and observing the fluorescence under a fluorescent lamp. For a long time, wellsite fluorescence droplet illumination has been performed in an open space using a non-scaled glass rubber-tipped burette. The titration reagent dosage was determined entirely by the operator's feel. This non-quantitative operation resulted in non-comparable droplet illumination results, and the open space caused significant volatilization of toxic reagents, which did not meet the health, safety, and environmental protection requirements of wellsite operations. Utility Model Content

[0003] In order to solve the problems of non-quantitative and toxic reagent volatilization causing harm to operators in the current well site fluorescent drip illumination process, the utility model provides a fully sealed quantitative drip illumination device, which realizes the sealing and quantification of the entire fluorescent drip illumination process.

[0004] This application is achieved by adopting the following technical solutions.

[0005] A fully sealed quantitative drop irradiation device includes a quantitative pipette installed on the top of a box-type fluorescence detector through insertion and sealing, and a sealed liquid storage device is provided below the quantitative pipette; the quantitative drop irradiation device also includes a titration mechanical arm assembly, and a titration needle is installed at the front end of the titration mechanical arm assembly. The titration needle, quantitative pipette and sealed liquid storage device are connected through a titration pipeline.

[0006] Furthermore, the sealed liquid storage device includes a liquid storage bottle, and a sealing component is provided at the upper end of the liquid storage bottle.

[0007] Furthermore, the liquid storage bottle is installed on a liquid storage bottle supporting and clamping device, and the liquid storage bottle supporting and clamping device includes a vertically arranged Picatinny rail, the Picatinny rail is provided with a slide rail sliding along the Picatinny rail, and the slide rail is provided with an elastic arm.

[0008] Furthermore, the elastic arm is an open ring.

[0009] Furthermore, the titration pipeline includes a tee, the upper port of the tee is connected to the quantitative pipette, the lower port of the tee is connected to the closed liquid storage device, and the branch port of the tee is connected to the titration needle through the titration catheter.

[0010] Furthermore, the titration line further includes a plurality of one-way valves, which are arranged at the three ports of the three-way connection.

[0011] Furthermore, the titration robot arm assembly includes a three-joint titration robot arm, which includes a rotating bracket arranged at the bottom of the box-type fluorescence detector box. The three robots are connected to the rotating bracket in sequence through three guide joints, and a needle locking device for fixing the titration needle is provided at the front end of the third robot arm.

[0012] This application has the following beneficial effects.

[0013] (1) The utility model adopts a volume-adjustable quantitative pipette to make the volume of the titration reagent controllable;

[0014] (2) The quantitative pipette, liquid storage bottle, titration catheter and titration needle of the utility model are all sealed and leak-proof to prevent the leakage of acetone or chloroform, which is a toxic reagent, and ensure the safety and environmental protection of the titration process;

[0015] (3) The quantitative pipette, liquid storage bottle, and titration catheter of the utility model are all equipped with a liquid phase check valve to prevent the reagent from flowing back and improve the flow efficiency of the reagent in the catheter;

[0016] (4) The utility model adopts a titration robot to control the titration position and angle, and controls the opening and closing of the robot and the angle adjustment through an external telex switch, eliminating the need for the operator to hold the sample and the burette for titration, thus avoiding direct contact between the operator and the toxic reagent;

[0017] (5) Each module of the utility model is connected to the box body of the box-type fluorescence detector by sealed insertion, sliding rails and magnetic attraction, which is convenient for disassembly and assembly and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a usage state diagram of the utility model.

[0020] Among them, 1. quantitative pipette; 2. closed liquid storage device; 2-1. liquid storage bottle; 2-2. sealing assembly; 3. liquid storage bottle support and clamping device; 3-1. Picatinny rail; 3-2. slide rail; 3-3. elastic arm; 4. titration line; 4-1. titration catheter; 4-2. tee; 4-3. check valve; 4-4. liquid storage bottle outlet catheter; 5. titration robot arm assembly; 5-1. three-joint titration robot arm; 5-2. rotating bracket; 5-3. titration needle; 5-4. needle locking device; 6. box-type fluorescence detector box. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1-2 As shown, a fully sealed quantitative dripping device includes a quantitative pipette 1, a sealed liquid storage device 2, a liquid storage bottle supporting and clamping device 3, a titration pipeline 4 and a titration mechanical arm assembly 5.

[0023] The quantitative pipette 1 of the present application is used to draw a certain volume of reagent from the sealed liquid storage device 2 and drive it along the titration line 4 to the titration needle 5-3; the sealed liquid storage device 2 is used to store the reagent and prevent the reagent from volatilizing; the liquid storage bottle support and clamping device 3 is used to support and clamp the liquid storage bottle 2-1 to ensure that the liquid storage bottle 2-1 is vertical; the titration line 4 is used to connect the quantitative pipette 1 and the liquid storage bottle 2-1 to transport a certain volume of reagent to the titration needle 5-3; the titration mechanical arm assembly 5 is used to control the titration angle and also to fix the titration line 4. The entire fully sealed quantitative dripping device is installed on one side of the interior of the box-type fluorescence detector box 6 ( Figure 2 The fully sealed quantitative dripping device is installed on the left side of the box-type fluorescence detector box 6. The "left side" and "right side" mentioned below only represent Figure 2 direction in the middle).

[0024] Specifically, the quantitative pipette 1 is a manual pipette with adjustable volume, which is installed on the top of the box-type fluorescence detector box 6 using an insert seal. The quantitative pipette tip is connected to the closed liquid storage device 2 and the titration needle 5-3 through the burette line 4.

[0025] The closed liquid storage device 2 includes a medium-boron glass liquid storage bottle 2-1 with a volume of 20 ml. The bottle mouth is provided with a sealing component 2-2. The sealing component 2-2 is a butyl rubber stopper and is sealed with aluminum foil. The liquid storage bottle 2-1 is upright fixed on the base of the box-type fluorescence detector box 6 through the liquid storage bottle support and clamping device 3, and is located directly below the quantitative pipette 1.

[0026] The liquid storage bottle supporting and clamping device 3 includes a Picatinny rail 3-1 and a clamping assembly. The Picatinny rail 3-1 is 50mm long and 20mm wide, and is vertically fixed to the left inner wall of the box-type fluorescence detector box 6. The center line of the Picatinny rail 3-1 coincides with the projection of the center line of the quantitative pipette 1 on the left inner wall of the box-type fluorescence detector box 6; the Picatinny rail 3-1 is used to support and guide the clamping assembly to move up and down; the clamping assembly includes a slide rail 3-2 and two elastic arms 3-3; the slide rail 3-2 is 45mm long and 25mm wide. The slide rail 3-2 can slide up and down along the Picatinny guide rail 3-1 to adjust the position of the closed liquid storage device 2 and the liquid suction port of the quantitative pipette 1; the elastic arm 3-3 is an open ring in the shape of "Ω" with a diameter of 18mm in the normal state. The two elastic arms 3-3 are respectively located at both ends of the slide rail 3-2, 20mm away from the midpoint of the slide rail 3-2, and are used to hold the closed liquid storage device 2. When in use, the liquid storage bottle 2-1 can be pressed into the opening of the elastic arm 3-3.

[0027] The burette line 4 includes a burette tube 4-1, a tee 4-2, and a check valve 4-3, all made of polypropylene. The burette tube 4-1 is used to connect the quantitative pipette 1, the sealed liquid storage device 2, and the burette needle 5-3, and is also used to channel reagents. The tee 4-2 is a polypropylene "T"-shaped tee located between the quantitative pipette 1 and the sealed liquid storage device 2. Its upper straight-through port connects to the quantitative pipette 1, its lower straight-through port connects to the sealed liquid storage device 2 via the liquid storage bottle outlet tube 4-4, and its inflection port connects to the burette tube 4-1. There are three check valves 4-3, located at the liquid aspiration port of the quantitative pipette 1, the liquid storage bottle outlet tube 4-4, and the junction of the tee and the burette tube 4-1, to control the unidirectional flow of reagents within the process.

[0028] The titration robot assembly 5 includes a three-joint titration robot 5-1 and a titration needle 5-3; the three-joint titration robot 5-1 controls the opening and closing of the titration robot and the adjustment of the titration angle through an external telex switch; the three-joint titration robot 5-1 includes a rotating bracket 5-2, three robot arms, three guide joints and a needle locking device 5-4; the rotating bracket 5-2 is fixed to the base inside the box-type fluorescence detector box 6 through a base magnet, adjacent to the sealed liquid storage device 2, for supporting the robot arm and controlling the steering of the robot arm through horizontal rotation; the three robot arms are connected to the rotating bracket 5-2 in sequence through three guide joints, for controlling the opening and closing of the titration robot arm to select the titration position, and a needle locking device 5-4 is provided at the front end of the third robot arm for fixing the titration needle 5-3. The needle locking device 5-4 is a circular ring located at the front end of the robot arm, through which the titration needle 5-3 passes, for fixing the titration needle 5-3.

[0029] The titration needle 5-3 is used to align the titration sample and drop the reagent on the sample; the titration needle 5-3 includes a needle body and a needle rubber sheath. The needle body is fixed on the needle locking device 5-4 at the front end of the third robotic arm, and is used to align the sample and guide the reagent; the needle rubber sheath is wrapped around the outside of the needle body to seal the needle hole to prevent the reagent from evaporating due to gravity and natural volatilization.

[0030] The method of using the utility model is as follows:

[0031] The quantitative pipette 1 of this device is fixed to the top left side of the box-type fluorescence detector housing 6 by inserting a seal, and the titration arm assembly 5 is fixed to the left side inside the box-type fluorescence detector housing 6 by a base magnet. When in use, first fill 20ml of acetone or chloroform reagent into the liquid storage bottle 2-1, which is sealed with a butyl rubber stopper and aluminum foil to ensure leakage; install the closed liquid storage device 2 in the elastic arm 3-3 of the liquid storage bottle support and clamping device 3, and adjust the height of the closed liquid storage device 2 by sliding up and down the Picatinny guide 3-1 and the slide rail 3-2; connect the quantitative pipette 1 and the titration needle 5-3 through the titration line 4; control the titration arm assembly 5 to open and align with the titration sample through the external power switch, press the quantitative pipette 1 to aspirate the liquid from the closed liquid storage device 2 into the titration line 4 and reach the titration needle 5-3, and titrate 0.5ml of the reagent to the sample surface. When used for the first time, it is necessary to use the quantitative pipette 1 to take liquid twice to fill the titration pipeline. For each subsequent titration, it is only necessary to press the titration button once normally until the reagent in the closed liquid storage device 2 is used up, refill the liquid storage bottle 2-1, and take liquid twice to fill the titration pipeline. After each titration is completed, the titration robot arm assembly 5 is controlled to retract by the external power switch.

[0032] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A fully sealed quantitative drip irradiation device, characterized by: The invention comprises a quantitative pipette (1) which is installed on the top of a box-type fluorescence detector box (6) by inserting and sealing, and a sealed liquid storage device (2) is provided below the quantitative pipette (1); the quantitative dripping device also comprises a titration mechanical arm assembly (5), a titration needle (5-3) is installed at the front end of the titration mechanical arm assembly (5), and the titration needle (5-3), the quantitative pipette (1) and the sealed liquid storage device (2) are connected through a titration pipeline (4).

2. A fully sealed quantitative dripping device according to claim 1, characterized in that: The sealed liquid storage device (2) comprises a liquid storage bottle (2-1), and a sealing component (2-2) is provided at the upper end of the liquid storage bottle (2-1).

3. A fully sealed quantitative dripping device according to claim 2, characterized in that: The liquid storage bottle (2-1) is installed on a liquid storage bottle supporting and clamping device (3), and the liquid storage bottle supporting and clamping device (3) includes a vertically arranged Picatinny rail (3-1), a slide rail (3-2) sliding along the Picatinny rail (3-1), and an elastic clamping arm (3-3) is provided on the slide rail (3-2).

4. A fully sealed quantitative dripping device according to claim 3, characterized in that: The elastic holding arm (3-3) is an open ring.

5. The fully sealed quantitative dripping device according to claim 1, characterized in that: The burette line (4) comprises a tee (4-2), the upper end of the tee (4-2) is connected to a quantitative pipette (1), the lower end of the tee (4-2) is connected to a sealed liquid storage device (2), and the branch end of the tee (4-2) is connected to a burette needle (5-3) via a burette catheter (4-1).

6. A fully sealed quantitative dripping device according to claim 4, characterized in that: The burette line (4) further comprises a plurality of one-way valves (4-3), and the one-way valves (4-3) are arranged at the three ports of the three-way valve (4-2).

7. The fully sealed quantitative dripping device according to claim 1, characterized in that: The titration mechanical arm assembly (5) comprises a three-joint titration mechanical arm (5-1), the three-joint titration mechanical arm (5-1) comprising a rotating bracket (5-2) arranged at the bottom of a box-type fluorescence detector box (6), three mechanical arms being sequentially connected to the rotating bracket (5-2) via three guide joints, and a needle locking device (5-4) for fixing a titration needle (5-3) being provided at the front end of the third mechanical arm.

Images