CN213397790U

CN213397790U - Quantitative sampler for liquid pipeline

Info

Publication number: CN213397790U
Application number: CN202022437376.2U
Authority: CN
Inventors: 张敬丰
Original assignee: Luoyang Zetian Petrochemical Fittings Co ltd
Current assignee: Luoyang Zetian Petrochemical Fittings Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-08
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a check out test set technical field, concretely relates to liquid pipeline quantitative sampler, through set up sampler and feed liquor cover on liquid pipeline, liquid in the liquid pipeline gets into the feed liquor cover, then under the effect of baffle, reset spring, connecting rod and piston structure, pushes the sample connection repeatedly and carries out the ration sample in the feed liquor cover. The problem of current liquid pipeline set up the valve in specific area usually, open liquid with the valve and flow out and collect from the well when needs are adopted is solved, need consider the hydraulic pressure at sampling point both ends like this when taking a sample, often need cooperate the pressure valve to carry out pipeline pressure and adjust, lead to sample operation inconvenience.

Description

Quantitative sampler for liquid pipeline

Technical Field

The utility model relates to a check out test set technical field, concretely relates to liquid pipeline quantitative sampler.

Background

In some petrochemical fields, need often carry out the sample detection to its inside liquid on the transportation pipeline of liquid to in time master pipeline internal conditions and whether each item index of liquid goes wrong, thereby can carry out timely solution to the problem.

The existing liquid pipeline is usually provided with a valve in a specific area, when sampling is needed, the valve is opened to enable liquid to flow out of the pipeline and collect the liquid, so that the hydraulic pressure at two ends of a sampling point needs to be considered during sampling, pipeline pressure regulation is often needed to be carried out by matching with a pressure valve, and the sampling operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above problem provides a liquid pipeline quantitative sampler.

The technical scheme who adopts is, a liquid pipeline quantitative sampler includes the sampler body, the sampler body is connected with liquid pipeline one side, and the liquid pipeline junction is provided with sample connection and feed liquor cover, feed liquor cover periphery is provided with the perforation, wherein the sampler body is the tubular structure, be provided with the piston structure on the sampler body, the last thief hole that is provided with of piston structure, and the piston structure can be taken the thief hole and support into in the feed liquor cover, be provided with the baffle in the feed liquor cover, reset spring and connecting rod, the connecting rod passes for one side of sample connection from the feed liquor cover, and be connected with the baffle, reset spring overlaps on the connecting rod, and reset spring one end is connected with the baffle, the reset spring other end and feed liquor cover inner wall connection, the baffle can offset with the piston structure.

Optionally, the piston structure includes a piston rod, a first connection port, a second connection port, a third connection port, a first sealing sleeve, and a second sealing sleeve; the first sealing sleeve and the second sealing sleeve divide the inner cavity of the sampler body into a first cavity, a second cavity and a third cavity; the first connecting port is communicated with the first cavity, the second connecting port is communicated with the second cavity, and the third connecting port is communicated with the third cavity; the piston rod can be in the inside cavity reciprocating motion of sampler body, and the feed liquor cover is kept away from to piston rod one end and is located first cavity, and the piston rod other end can insert the feed liquor cover and offset with the baffle, and on the piston rod was located to the thief hole, the second cavity passed through connecting pipe and first cavity intercommunication.

Furthermore, a first connecting port is communicated with the first air inlet pipe, a pressure stabilizing port is arranged on the sampler body and communicated with the first cavity, a first pressure stabilizing tube is connected to the pressure stabilizing port, a first sealing ring is sleeved on part of the rod body of the piston rod, which is positioned in the first cavity, and the first sealing ring is in contact with the inner wall of the first cavity.

Optionally, a delivery pipe is connected to the second connection port, and the delivery pipe is communicated with the second air inlet pipe and the first exhaust pipe respectively.

Optionally, a fourth sealing ring is arranged in the middle of the piston rod, and the fourth sealing ring is located in the third cavity.

Optionally, one end of the piston rod close to the liquid inlet cover is provided with a second sealing ring and a third sealing ring respectively, and the second sealing ring and the third sealing ring are located on two sides of the sampling hole respectively.

Furthermore, a third air inlet pipe is connected to the third connecting port, and the sampler body is communicated with the sampling tank on one side opposite to the third connecting port.

The utility model has the advantages that at least one of the following advantages is included;

1. through set up sampler and feed liquor cover on liquid pipeline, liquid entering feed liquor cover in the liquid pipeline, then under the effect of baffle, reset spring, connecting rod and piston structure, push the inlet liquor cover repeatedly with the thief hole and carry out the ration sample.

2. The problem of current liquid pipeline set up the valve in specific area usually, open liquid with the valve and flow out and collect from the well when needs are adopted is solved, need consider the hydraulic pressure at sampling point both ends like this when taking a sample, often need cooperate the pressure valve to carry out pipeline pressure and adjust, lead to sample operation inconvenience.

Drawings

FIG. 1 is a schematic view of a liquid pipeline quantitative sampler return spring when it is reset;

FIG. 2 is a schematic view of a liquid pipeline quantitative sampler with a return spring contracted;

FIG. 3 is a schematic diagram of a control structure of a liquid pipeline quantitative sampler;

labeled as: 1 is a liquid pipeline, 2 is a sampler body, 3 is a liquid inlet cover, 4 is a piston rod, 5 is a sampling tank, 6 is an adsorption tank, 7 is a first cavity, 8 is a connecting pipe, 9 is a second cavity, 10 is a third cavity, 11 is a sampling hole, 12 is a connecting rod, 13 is a baffle, 14 is a reset spring, 15 is a gasket, 16 is a first connecting port, 17 is a second connecting port, 18 is a third connecting port, 19 is a first control valve, 20 is a second control valve, 21 is a third control valve, 22 is a fourth control valve, 23 is a fifth control valve, 24 is a pressure stabilizing port, 25 is a first sealing ring, 26 is a first sealing sleeve, 27 is a second sealing sleeve, 28 is a second sealing ring, 29 is a third sealing ring, 30 is a first air inlet pipe, 31 is a first pressure stabilizing pipe, 32 is a conveying pipe, 33 is a second air inlet pipe, 34 is a first air outlet pipe, 35 is a third air inlet pipe, and 36 is a second pressure stabilizing pipe, And 37 is a fourth sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.

As shown in fig. 1 and fig. 2, a liquid pipeline quantitative sampler includes sampler body 2, sampler body 2 is connected with 1 one side of liquid pipeline, and the 1 junction of liquid pipeline is provided with sample connection and feed liquor cover 3, feed liquor cover 3 periphery is provided with the perforation, wherein sampler body 2 is the tubular structure, be provided with the piston structure on sampler body 2, the structural thief hole 11 that is provided with of piston, and the piston structure can be taken sampling hole 11 and support into feed liquor cover 3 in, be provided with baffle 13 in the feed liquor cover 3, reset spring 14 and connecting rod 12, connecting rod 12 passes for one side of sample connection from feed liquor cover 3, and be connected with baffle 13, reset spring 14 overlaps on connecting rod 12, and reset spring 14 one end is connected with baffle 13, the reset spring 14 other end and the 3 inner wall connections of feed liquor cover, baffle 13 can offset with the piston structure.

The aim at of design like this, through set up sampler and feed liquor cover on liquid pipeline, liquid entering feed liquor cover in the liquid pipeline, then under the effect of baffle, reset spring, connecting rod and piston structure, push the inlet liquor cover repeatedly with the thief hole and carry out the ration sample. The problem of current liquid pipeline set up the valve in specific area usually, open liquid with the valve and flow out and collect from the well when needs are adopted is solved, need consider the hydraulic pressure at sampling point both ends like this when taking a sample, often need cooperate the pressure valve to carry out pipeline pressure and adjust, lead to sample operation inconvenience.

The embodiment also discloses a concrete structure of the piston structure, wherein the piston structure comprises a piston rod 4, a first connecting port 16, a second connecting port 17, a third connecting port 18, a first sealing sleeve 26 and a second sealing sleeve 27; the first sealing sleeve 26 and the second sealing sleeve 27 divide the inner cavity of the sampler body 2 into a first cavity 7, a second cavity 9 and a third cavity 10; the first connection port 16 is communicated with the first cavity 7, the second connection port 17 is communicated with the second cavity 9, and the third connection port 18 is communicated with the third cavity 10; piston rod 4 can be in sampler body 2's inside cavity reciprocating motion, and the feed liquor cover 3 is kept away from to 4 one ends of piston rod and is located first cavity 7, and 4 other ends of piston rod can insert feed liquor cover 3 and offset with baffle 13, and on piston rod 4 was located to thief hole 11, second cavity 9 passed through connecting pipe 8 and first cavity 7 intercommunication.

Meanwhile, in order to match with the gas input and output of each cavity, the first connecting port 16 is communicated with the first gas inlet pipe 30, the sampler body 2 is provided with a pressure stabilizing port 24, the pressure stabilizing port 24 is communicated with the first cavity 7, the pressure stabilizing port 24 is connected with a first pressure stabilizing pipe 31, a part of the rod body of the piston rod 4 positioned in the first cavity 7 is sleeved with a first sealing ring 25, and the first sealing ring 25 is contacted with the inner wall of the first cavity 7. A delivery pipe 32 is connected to the second connection port 17, and the delivery pipe 32 communicates with a second intake pipe 33 and a first exhaust pipe 34, respectively. The middle part of the piston rod 4 is provided with a fourth sealing ring 37, and the fourth sealing ring 37 is located in the third cavity 10. And one end of the piston rod 4 close to the liquid inlet cover 3 is respectively provided with a second sealing ring 28 and a third sealing ring 29, and the second sealing ring 28 and the third sealing ring 29 are respectively positioned at two sides of the sampling hole 11. The third connecting port 18 is connected with a third air inlet pipe 35, and the sampler body 2 is communicated with the sampling tank 5 at the side opposite to the third connecting port 18.

Referring to the attached figure 3 of the specification, the whole liquid pipeline quantitative sampler completes dynamic control under a PLC controller, and is convenient for workers to remotely regulate and control, wherein a first control valve 19 positioned on a first air inlet pipe and a second control valve 20 positioned on a first pressure stabilizing pipe form a control structure at an input end, a third control valve 21 positioned on a second air inlet pipe and a fourth control valve 22 positioned on a first exhaust pipe form a control structure at an adjusting end, a fifth control valve 23 positioned on a third air inlet pipe form a control structure at a material taking end, and a discharge end control structure which is communicated with a vent hole on a sampling tank and formed by the second pressure stabilizing pipe and an adsorption tank is used for realizing the control of the whole sampling structure.

As shown in fig. 1, the whole liquid pipeline quantitative sampler is in a reset state under an initial state, at this time, the second control valve, the third control valve and the fifth control valve are closed through the PLC controller, the first control valve and the fourth control valve are opened, the high-pressure gas input from the first air inlet pipe pushes the first sealing ring to push the whole piston rod towards the sampling port, meanwhile, the gas in the first cavity enters the second cavity through the connecting pipe and is discharged from the first exhaust pipe, finally, the piston rod pushes the sampling hole into the liquid inlet cover by pushing the baffle plate, as the liquid inlet cover is provided with the through hole, the liquid in the liquid pipeline can enter the liquid inlet cover, after the sampling is finished, as shown in fig. 2, the whole liquid pipeline quantitative sampler is in a contracted state after the sampling, at this time, the first control valve and the fourth control valve are closed through the PLC controller, the second control valve and the third control valve are opened, high-pressure gas input from a second air inlet pipe enters a second cavity through a conveying pipe, then enters a first cavity through a connecting pipe to apply a pushing force to a first sealing ring, meanwhile, a contracted reset spring also pushes a baffle plate towards a position far away from a sampling port, residual gas in the first cavity enters a first pressure stabilizing pipe from a pressure stabilizing port to be discharged, after the sampling port returns to the initial position, a second control valve and a third control valve are closed, a fifth control valve is opened, high-pressure gas input from a third air inlet pipe blows liquid patterns in the sampling port into a sampling tank to finish sampling, and redundant gas enters an adsorption tank from a second pressure stabilizing pipe communicated with the sampling tank.

Meanwhile, it needs to be pointed out that, in order to better blow the liquid sample in the sampling hole to the sampling tank, as preferred can set up the sampling hole as the round hole, or be spherical hole, its initial position is located the third connection port below, simultaneously the sampling tank also is located the third connection port below with sampler body junction, in this application because the volume of sampling hole is fixed, consequently the liquid sample of taking out from the liquid pipeline is fixed at every turn theoretically to quantitative sampling has been realized in the within range that the error allows.

In this embodiment, its main effect of the sealing washer structures such as the first sealing washer of setting, second sealing washer lies in sealing up corresponding cavity, prevents or reduces liquid and gets into the cavity, is being close to the sample connection play simultaneously and is being provided with the gasket, and when reset spring reset, the gasket can contact with the baffle, reduces the impact of baffle to the sample connection.

Meanwhile, it needs to be pointed out that this application mainly improves to the structure of sampler, but in practical use, in order to realize its necessary function, the skilled person must use a part of prior art, for example, the control of PLC controller to the control valve, the PLC controller chooses conventional singlechip to be can, for example MSP430, the control valve can choose conventional solenoid valve.

Claims

1. The utility model provides a liquid pipeline quantitative sampler, includes sampler body (2), sampler body (2) are connected with liquid pipeline (1) one side, and liquid pipeline (1) junction is provided with sample connection and feed liquor cover (3), feed liquor cover (3) periphery is provided with perforation, its characterized in that: sampler body (2) are the tubular structure, are provided with the piston structure on sampler body (2), the structural sampling hole (11) that is provided with of piston, and the piston structure can take sampling hole (11) to support into feed liquor cover (3), be provided with baffle (13), reset spring (14) and connecting rod (12) in feed liquor cover (3), connecting rod (12) are passed for one side of sample connection from feed liquor cover (3) to be connected with baffle (13), reset spring (14) cover is on connecting rod (12), and reset spring (14) one end is connected with baffle (13), and reset spring (14) other end and feed liquor cover (3) inner wall connection, baffle (13) can offset with the piston structure.

2. A liquid pipeline quantitative sampler as claimed in claim 1, wherein: the piston structure comprises a piston rod (4), a first connecting port (16), a second connecting port (17), a third connecting port (18), a first sealing sleeve (26) and a second sealing sleeve (27); the inner cavity of the sampler body (2) is divided into a first cavity (7), a second cavity (9) and a third cavity (10) by the first sealing sleeve (26) and the second sealing sleeve (27); the first connection port (16) is communicated with the first cavity (7), the second connection port (17) is communicated with the second cavity (9), and the third connection port (18) is communicated with the third cavity (10); piston rod (4) can be in the inside cavity reciprocating motion of sampler body (2), and feed liquor cover (3) is kept away from and is located first cavity (7) to piston rod (4) one end, and piston rod (4) other end can insert feed liquor cover (3) and offset with baffle (13), on piston rod (4) was located in thief hole (11), second cavity (9) are through connecting pipe (8) and first cavity (7) intercommunication.

3. A liquid pipeline quantitative sampler as claimed in claim 2, wherein: the sampler is characterized in that the first connecting port (16) is communicated with the first air inlet pipe (30), a pressure stabilizing port (24) is arranged on the sampler body (2), the pressure stabilizing port (24) is communicated with the first cavity (7), a first pressure stabilizing tube (31) is connected to the pressure stabilizing port (24), a first sealing ring (25) is sleeved on a part of the rod body of the piston rod (4) located in the first cavity (7), and the first sealing ring (25) is in contact with the inner wall of the first cavity (7).

4. A liquid pipeline quantitative sampler as claimed in claim 3, wherein: the second connecting port (17) is connected with a conveying pipe (32), and the conveying pipe (32) is communicated with a second air inlet pipe (33) and a first exhaust pipe (34) respectively.

5. A liquid pipeline quantitative sampler as claimed in claim 4, wherein: and a fourth sealing ring (37) is arranged in the middle of the piston rod (4), and the fourth sealing ring (37) is positioned in the third cavity (10).

6. A liquid pipeline quantitative sampler as claimed in claim 5, wherein: and one end of the piston rod (4) close to the liquid inlet cover (3) is respectively provided with a second sealing ring (28) and a third sealing ring (29), and the second sealing ring (28) and the third sealing ring (29) are respectively positioned at two sides of the sampling hole (11).

7. A liquid pipeline quantitative sampler as claimed in claim 6, wherein: the third connecting port (18) is connected with a third air inlet pipe (35), and the sampler body (2) is communicated with the sampling tank (5) on the side opposite to the third connecting port (18).