Water surface greenhouse gas collecting and measuring instrument

Abstract

The utility model belongs to the technical field of measurement and testing, and discloses a water surface greenhouse gas collecting and measuring instrument which comprises a collecting pipe device, a switching regulation and control mechanism, a fixed mounting mechanism and an extraction mechanism, the collecting pipe device is located at the head of the whole device, and the switching regulation and control mechanism is arranged in the collecting pipe device; the extraction mechanism is arranged at the tail part of the whole device and is communicated with the collecting pipe device; and the switching regulation and control mechanism is matched with the fixed mounting mechanism to realize the switching and adjustment of the state in the collecting pipe device. According to the collecting pipe device, the switching ball is rotatably arranged in the spherical cavity, and the switching ball is hemispherical, so that the through holes formed in the two sides in the spherical cavity are alternately plugged by rotating the switching ball and switching the position of the switching ball, and then after gas in the collecting pipe device is discharged, the gas in the collecting pipe device is conveniently discharged; and the exhausted gas cannot be sucked again after the gas is sucked again, so that the quality of the gas is guaranteed for detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to a collection device for natural water body or artificial water body greenhouse gas, belongs to measurement, testing technical field, concretely is a water surface greenhouse gas collection measuring instrument. BACKGROUND

[0002] The device for measuring land greenhouse gas emission is relatively heavy in design, needs three-way switch connection at the sealing position, and has high requirements. It is inconvenient to directly fix and apply to the water gas interface greenhouse gas of natural water body or artificial water body. The detection personnel need to collect the gas on the surface of the water body regularly, and the prior art has the following problems: a collection device for water gas interface greenhouse gas emission of water body, the bottom of the sampling barrel is provided with a floating device to form a self-floating sampling barrel, which can float in water and be used for in-situ collection of greenhouse gas samples of natural water body and artificial water body and the like, and is suitable for in-situ monitoring test. In the prior art, the gas sample is collected by using a ball bladder, the gas in the ball bladder is discharged by hand, the gas is sucked into the ball bladder when the ball bladder returns to the original shape, and then the collected gas in the ball bladder is discharged into a sample container. The gas collection method needs to collect gas by means of elastic deformation of the ball bladder, the gas collection time is long, the collection efficiency is low, and when the collected gas is discharged, the discharged gas is easily sucked into the ball bladder again, so that the amount of collected gas is unstable, and therefore a water surface greenhouse gas collection measuring instrument is proposed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a water surface greenhouse gas collection measuring instrument, which is installed in the collection pipe device through the switching control mechanism, so as to block the intake and discharge of gas through the switching control mechanism to ensure the quality of the intake gas, thereby solving the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A water surface greenhouse gas collection measuring instrument, comprising a collection pipe device, a switching control mechanism, a fixed mounting mechanism and an extraction mechanism, the collection pipe device is located at the head of the whole device, the switching control mechanism is arranged in the collection pipe device, the extraction mechanism is arranged at the tail of the whole device and communicates with the collection pipe device, and the switching control mechanism realizes the switching and adjustment of the state in the collection pipe device through cooperation with the fixed mounting mechanism.

[0006] The collection pipe device comprises a spherical cavity, and one gas collection inlet and outlet pipeline is arranged on each of the left and right sides of the spherical cavity.

[0007] The switching control mechanism is designed in T shape, including the connecting rod at the bottom, the switching ball, the convex column, and the indication fixed plate. The connecting rod, the switching ball, and the convex column are fixed and on a line, forming the lower part of the T-shaped structure. The connecting rod is arranged outside the spherical cavity, and the switching ball and the convex column are arranged inside the spherical cavity. The indication fixed plate is the upper part of the T-shaped structure and is fixed with the connecting rod. The indication fixed plate is provided with an indication block at the end side, which is used to prompt the position state of the switching ball in the spherical cavity.

[0008] The switching ball of the switching control mechanism is designed as a hemisphere and is located in the spherical cavity. In terms of size relationship, the surface of the switching ball is just inside the spherical cavity. By adjusting the direction of the indication fixed plate by the operator outside, the switching ball in the spherical cavity is selected to control the switching of the left or right gas collection pipeline to control the on-off thereof.

[0009] Further, the mounting cover is arranged at the front end of the spherical cavity.

[0010] Further, the spherical cavity is provided with a rotating hole at the top end, a rotating groove at the bottom end, and through holes at the left and right ends. The connecting rod passes through the rotating hole and is rotationally and sealingly connected. The convex column is limited in the rotating groove and is movably connected. The spherical cavity is communicated with the gas collection pipeline through the through holes. The two sides of the rotating hole are respectively provided with insertion grooves.

[0011] Further, the fixed mounting mechanism includes a handle, a stop block, a positioning point, a tension spring, and a cross plate.

[0012] The handle is in the shape of a door. The handle penetrates through the two through holes of the indication fixed plate. Two stop blocks are arranged at the two sides of the handle. The bottom is provided with a positioning point. Two tension springs are arranged. The top of the tension springs is fixed to the handle of the door through the cross plate. The bottom of the tension springs is fixed to the indication fixed plate. The two positioning points are respectively arranged in the insertion grooves at the two sides of the rotating hole.

[0013] Further, the extraction mechanism is connected with the collection pipe device and is communicated with the spherical cavity. The extraction mechanism is pulled or pushed to cooperate with the collection pipe device to suck or push the collected gas.

[0014] Further, the extraction mechanism includes a piston cavity, a sealing cover, an extraction rod, a handle, and a piston. The piston is movable in the piston cavity but has a sealing effect at the position where the piston radially contacts the inner wall of the piston cavity. The piston, the extraction rod, and the handle are connected in sequence. The sealing cover is threadedly and sealingly connected to the tail of the piston cavity. The extraction rod penetrates through the sealing cover and is connected with the piston inside the piston cavity. The outer part of the extraction rod is connected with the handle.

[0015] Further, the length of the piston cavity is equivalent to the length of the extraction rod. The piston is located at the front end of the extraction rod. When the pushing stroke is completed, the piston just seals and abuts against the interface between the spherical cavity and the piston cavity.

[0016] The collection personnel collects gas at the water surface by pulling the handle to perform the pumping operation, or pushes the handle to perform the pushing operation and provides the collected gas to the monitoring instrument through the gas inlet and outlet pipeline on one side for detection, or extends the section to collect the gas.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a switching and control mechanism is arranged in the ball cavity, and the switching ball is rotatable, and the switching ball is half -spherical type, to through the rotation switching ball, switching the position of switching ball is with the two sides of the through -hole of the ball cavity that is opened is alternately blocked, and then the gas in the collection pipe device is discharged, and the secondary resorption gas does not suck the discharged gas again, and the quality of the gas is guaranteed, and is used for detection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is whole split structure schematic drawing of the utility model;

[0020] Figure 2 It is whole structure schematic drawing of the utility model;

[0021] Figure 3 It is split structure schematic drawing of switching control mechanism of the utility model;

[0022] Figure 4 It is fixed assembly structure schematic drawing of the utility model.

[0023] In the drawing:

[0024] Collection pipe device 1: ball cavity 1-1, collection gas inlet and outlet pipeline 1-2, installation cover 1-3;

[0025] Switching control mechanism 2: connecting rod 2-1, switching ball 2-2, convex column 2-3, indication fixed plate 2-4, indication block 2-4-1, rotation hole 2-5, rotation slot 2-6, through -hole 2-7, slot 2-8;

[0026] Fixed installation mechanism 3: handle 3-1, resistance block 3-1-1, positioning point 3-1-2, tensile spring 3-2, horizontal plate 3-2-1;

[0027] Extraction mechanism 4: piston cavity 4-1, sealing cover 4-2, extraction rod 4-3, handle 4-4. DETAILED DESCRIPTION

[0028] The technical scheme of the present application is further described in detail below by combining with the drawings.

[0029] The function and structure design of the whole product are one of the key innovations of the present application, as shown in Figure 1 、 Figure 2 The exploded view and the assembly view are shown respectively.

[0030] A water surface greenhouse gas collection measuring instrument, comprising a collection pipe device 1, a switching control mechanism 2, a fixed mounting mechanism 3 and an extraction mechanism 4, the collection pipe device 1 is located at the head of the whole device, the switching control mechanism 2 is arranged in the collection pipe device 1, the extraction mechanism 4 is arranged at the tail of the whole device and communicates with the collection pipe device 1, the switching control mechanism 2 realizes the switching and adjustment of the state in the collection pipe device 1 through cooperation with the fixed mounting mechanism 3, wherein:

[0031] As shown in Figure 3 : the collection pipe device 1 comprises a spherical cavity 1-1, and a left and right gas collection inlet and outlet pipe 1-2 is arranged on each side of the spherical cavity 1-1.

[0032] In order to facilitate installation, a mounting cover 1-3 can be arranged at the front end of the spherical cavity 1-1.

[0033] As shown in Figure 3 , Figure 4 : the structure design of the switching control mechanism 2 and the fixed mounting mechanism 3 and their cooperation are the second key innovation of the application.

[0034] The switching control mechanism 2 is used to control the on-off of the left and right gas collection inlet and outlet pipes 1-2.

[0035] Further, the switching control mechanism 2 is designed in T shape, comprising a connecting rod 2-1 at the bottom, a switching ball 2-2, a convex column 2-3 and an indicating fixed plate 2-4, wherein:

[0036] The connecting rod 2-1, the switching ball 2-2 and the convex column 2-3 are fixed and on a line, forming the lower part of the T shape, the connecting rod 2-1 is arranged outside the spherical cavity 1-1, and the switching ball 2-2 and the convex column 2-3 are arranged inside the spherical cavity 1-1.

[0037] The indicating fixed plate 2-4 is the upper part of the T shape, is fixed with the connecting rod 2-1, and is provided with an indicating block 2-4-1 at the end side, used to prompt the position state of the switching ball 2-2 in the spherical cavity 1-1.

[0038] Further, a rotating hole 2-5 is arranged at the top end of the spherical cavity 1-1, a rotating groove 2-6 is arranged at the bottom end, and a through hole 2-7 is arranged at each of the left and right ends, the connecting rod 2-1 passes through the rotating hole 2-5 and is rotationally and sealingly connected, and the convex column 2-3 is limitingly connected in the rotating groove 2-6; the spherical cavity 1-1 communicates with the gas collection inlet and outlet pipe 1-2 through the through hole 2-7; and an insertion slot 2-8 is arranged at each side of the rotating hole 2-5.

[0039] The switching ball 2-2 is designed as a semi-sphere, which is tangent to the spherical cavity 1-1 in size, and the direction of the indication fixing plate 2-4 is adjusted by the operator to control the switching ball 2-2 to turn on or off the two gas collection pipeline 1-2 in the spherical cavity 1-1. The switching ball 2-2 is made of inert material with good rigidity and hardness, such as borosilicate glass sphere (Borosilicate Glass Spheres).

[0040] The fixed mounting mechanism 3 includes a handle 3-1, a stop block 3-1-1, a positioning point 3-1-2, a tension spring 3-2, and a cross plate 3-2-1.

[0041] The handle 3-1 is in the shape of a door, which penetrates through the two through holes of the indication fixing plate 2-4, and two stop blocks 3-1-1 are arranged on both sides of the handle 3-1, and a positioning point 3-1-2 is arranged at the bottom, and two tension springs 3-2 are arranged, and the top of the tension spring 3-2 is fixed to the door-shaped handle 3-1 through the cross plate 3-2-1, and the bottom is fixed to the indication fixing plate 2-4, and the two positioning points 3-1-2 are respectively arranged in the insertion slot 2-8 on both sides of the rotating hole 2-5.

[0042] In use, the switching control mechanism 2 and the fixed mounting mechanism 3 need to be matched: the collector pulls up the handle 3-1, so that the handle 3-1 exits from the inside of the insertion slot 2-8, at this time the indication fixing plate 2-4 can be rotated, and the handle 3-1 is rotated to follow, and the posture (position state) of the switching ball 2-2 in the spherical cavity 1-1 is determined, and after determination or adjustment (switching), the handle 3-1 is inserted into the inside of the insertion slot 2-8 to fix the indication fixing plate 2-4, and the whole switching control mechanism 2 is fixed.

[0043] As shown in Figure 1 , Figure 2 The extraction mechanism 4 is connected to the collection pipe device 1 and communicates with the spherical cavity 1-1, and the pulling or pushing operation of the extraction mechanism 4 is matched with the collection pipe device 1 to suck or push out the collected gas.

[0044] The extraction mechanism 4 is commonly structured and designed by conventional technology, including a piston cavity 4-1, a sealing cover 4-2, an extraction rod 4-3, a handle 4-4, and a piston (not shown in the figure). The piston is movable in the piston cavity 4-1 but has a sealing effect at the contact position between the piston and the inner wall of the piston cavity, the piston, the extraction rod 4-3, and the handle 4-4 are connected in sequence, the sealing cover 4-2 is threadedly connected to the tail of the piston cavity 4-1, the extraction rod 4-3 penetrates through the sealing cover 4-2 and is connected to the piston inside the piston cavity 4-1, and the outer part of the extraction rod 4-3 is connected to the handle 4-4. The length of the piston cavity 4-1 is equivalent to the length of the extraction rod 4-3, the piston is located at the front end of the extraction rod 4-3, and the piston is just sealed and abuts against the interface between the spherical cavity 1-1 and the piston cavity 4-1 after the push stroke is completed. The collector pulls the handle 4-4 to perform the extraction operation and collect the gas at the water surface, or performs the push operation and provides the collected gas to the monitoring instrument through the gas inlet and outlet pipeline 1-2 on one side for detection, or collects the gas in the extension section.

[0045] After the extraction mechanism 4 discharges the gas in the spherical cavity 1-1, the indicating fixed plate 2-4 is turned to make the switching ball 2-2 rotate inside the spherical cavity 1-1, the switching ball 2-2 blocks one of the through holes on the inner walls of the spherical cavity 1-1, and the gas is extracted through the extraction mechanism 4 to enter the spherical cavity 1-1 from the other through hole, so as to detect the second gas.

[0046] The device of the utility model, through rotating the switching ball 2-2, alternately switching the left and right two gas collection inlet and outlet pipelines 1-2 to inhale and exhaust, avoids that the gas discharged from one side of the spherical cavity 1-1 is inhaled by the second inhaling operation on the other side of the spherical cavity 1-1.

[0047] The materials of the multiple sealing positions in the device of the utility model can all adopt polytetrafluoroethylene (PTFE). The collection pipe device 1 is usually made of polypropylene (PP). The extension section (not shown in the figure) of the gas collection inlet and outlet pipeline 1-2 can adopt an inert material hose, and polytetrafluoroethylene (PTFE) can be selected, which is the most chemically inert hose material and is also called "Teflon" hose. The mounting cover 1-3 is usually made of polypropylene (PP). The connecting rod 2-1, the indicating fixed plate 2-4, and the handle 3-1 can all be made of wood or metal, and the selected material is solid. The extraction mechanism 4 is usually made of polypropylene (PP).

Claims

1. A water surface greenhouse gas collection measuring instrument, characterized by, The device comprises a collecting pipe device (1), a switching control mechanism (2), a fixed mounting mechanism (3) and an extraction mechanism (4). The collecting pipe device (1) is located at the head of the device, the switching control mechanism (2) is arranged in the collecting pipe device (1), the extraction mechanism (4) is arranged at the tail of the device and communicates with the collecting pipe device (1), and the switching control mechanism (2) realizes the switching and adjustment of the state in the collecting pipe device (1) through cooperation with the fixed mounting mechanism (3). The collecting pipe device (1) comprises a spherical cavity (1-1) and a gas collection inlet and outlet pipeline (1-2) arranged on the left and right sides of the spherical cavity (1-1). The switching control mechanism (2) is designed in a T shape and comprises a connecting rod (2-1), a switching ball (2-2), a convex column (2-3) and an indicating fixed plate (2-4). The connecting rod (2-1), the switching ball (2-2) and the convex column (2-3) are fixed and arranged on a line and form the lower part of the T shape. The connecting rod (2-1) is arranged outside the spherical cavity (1-1), and the switching ball (2-2) and the convex column (2-3) are arranged in the spherical cavity (1-1). The indicating fixed plate (2-4) is the upper part of the T shape and is fixed with the connecting rod (2-1). The indicating fixed plate (2-4) is provided with an indicating block (2-4-1) at the end side and is used for prompting the position state of the switching ball (2-2) in the spherical cavity (1-1). The switching ball (2-2) of the switching control mechanism (2) is designed as a hemispherical body and is located in the spherical cavity (1-1). The spherical surface of the switching ball (2-2) is just tangent to the spherical cavity (1-1). The direction of the indicating fixed plate (2-4) is adjusted by an operator to select and control the switching ball (2-2) to block the left or right gas collection inlet and outlet pipeline (1-2) in the spherical cavity (1-1) to control the on-off state of the pipelines.

2. The water surface greenhouse gas collection and measuring instrument according to claim 1, characterized in that, A mounting cover (1-3) is arranged at the front end of the spherical cavity (1-1).

3. The water surface greenhouse gas collection and measuring instrument according to claim 1 or 2, characterized in that, The spherical cavity (1-1) is provided with a rotating hole (2-5) at the top end, a rotating groove (2-6) at the bottom end and a through hole (2-7) at each of the left and right ends. The connecting rod (2-1) passes through the rotating hole (2-5) and is rotationally and sealingly connected. The convex column (2-3) is limitingly connected in the rotating groove (2-6). The spherical cavity (1-1) communicates with the gas collection inlet and outlet pipeline (1-2) through the through hole (2-7). The rotating hole (2-5) is provided with an insertion slot (2-8) at each of the two sides.

4. The water surface greenhouse gas collection and measuring instrument according to claim 1, characterized in that, The fixed mounting mechanism (3) comprises a handle (3-1), a resisting block (3-1-1), a positioning point (3-1-2), a stretching spring (3-2) and a horizontal plate (3-2-1). The handle (3-1) is in the shape of a door, the handle (3-1) penetrates through two through holes on the indication fixing plate (2-4), two abutting blocks (3-1-1) are arranged on two sides of the handle (3-1), a positioning point (3-1-2) is arranged at the bottom, two extension springs (3-2) are arranged, the top of the extension spring (3-2) is fixed on the door-shaped handle (3-1) through a cross plate (3-2-1), the bottom of the extension spring (3-2) is fixed on the indication fixing plate (2-4), and the two positioning points (3-1-2) are respectively arranged in the insertion slots (2-8) on the two sides of the rotating hole (2-5).

5. The water surface greenhouse gas collection and measuring instrument according to claim 1, characterized in that, The extraction mechanism (4) is connected with the collecting pipe device (1) and communicates with the spherical cavity (1-1), and the pulling or pushing operation of the extraction mechanism (4) is used to cooperate with the collecting pipe device (1) to suck or push the collected gas.

6. The water surface greenhouse gas collection and measuring instrument according to claim 5, characterized in that, The extraction mechanism (4) comprises a piston cavity (4-1), a sealing cover (4-2), an extraction rod (4-3), a handle (4-4) and a piston; the piston is movable in the piston cavity (4-1) and has a sealing effect at a position where the piston cavity (4-1) and the inner wall of the piston cavity are in contact in the radial direction, the piston, the extraction rod (4-3) and the handle (4-4) are connected in sequence, the sealing cover (4-2) is threadedly connected to the tail of the piston cavity (4-1), the extraction rod (4-3) penetrates through the sealing cover (4-2) and is connected with the piston in the piston cavity (4-1), and the outer portion of the extraction rod (4-3) is connected with the handle (4-4).

7. The water surface greenhouse gas collection and measuring instrument according to claim 6, characterized in that, The length of the piston cavity (4-1) is equivalent to the length of the extraction rod (4-3), the piston is located at the front end of the extraction rod (4-3), and when the pushing stroke is completed, the piston is just sealed and abuts against the interface between the spherical cavity (1-1) and the piston cavity (4-1).

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