High-pressure-resistant flow cell

Abstract

The utility model relates to a high-pressure-resistant flow cell which comprises a flow cell body, pipe connectors are arranged on the left side and the right side of the flow cell body respectively, the left side of the flow cell body is communicated with a feeding pipe, the right side of the flow cell body is communicated with a discharging pipe, the flow cell body is a three-way connector, a sensor connector is arranged at the top of the flow cell body, and a flow sensor is fixedly installed in a sensor structure. A semicircular baffle is arranged in the middle of the inner bottom of the flow cell, the right side of the feeding pipe is communicated with a first powerful flange plate, the left side of the discharging pipe is communicated with a second powerful flange plate, the feeding pipe and the discharging pipe are welded and fixed to a pipe connector of the flow cell, and the first powerful flange plate is welded and fixed to the feeding pipe. The device body is arranged in a mode that the flow cell, the feeding pipe, the discharging pipe, the first powerful flange plate and the second powerful flange plate are welded and fixed, so that manufacturing and production of the device body are greatly facilitated, and the problem that in the prior art, an integrally-formed flow cell is not resistant to high pressure is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection instrument technical field, especially relate to a high pressure resistant flow cell. BACKGROUND

[0002] In marine resource and environment detection activity, flow injection analyzer is a kind of instrument for measuring the content of chemical element and ion concentration in ocean, its working principle is that sample inlet device inhales seawater to be measured, and simultaneously mixes with reagent carried by it to carry out reaction, produces chemical substance capable of absorbing specific wavelength, when reaction solution flows through flow cell, light emitted by light source is transmitted through observation window at one end of flow cell and reacts with reaction solution, part of light of specific spectrum is absorbed by reaction solution, at the other end of flow cell, optical detection device such as spectrophotometer or spectrometer is used to measure light signal attenuated by reaction solution, to obtain the concentration of detection material.The traditional flow cell pipe joint cannot adapt to the pressure of deep sea, and light source and optical signal detection device are generally not high pressure resistant, therefore, it is very necessary to develop a high pressure resistant flow cell. SUMMARY

[0003] The utility model discloses a kind of high pressure resistant flow cells, to solve the problems existing in the prior art described above.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A high-pressure resistant flow tank includes a flow tank with pipe interfaces on both its left and right sides. A feed pipe is connected to the left side of the flow tank, and a discharge pipe is connected to the right side. The flow tank is a tee connector. A sensor interface is set at the top of the flow tank, and a flow sensor is fixedly installed inside the sensor interface. A semi-circular baffle is set at the middle of the inner bottom of the flow tank, integrally formed with the flow tank. The thickness of the semi-circular baffle gradually increases from top to bottom, with a top thickness of 0 mm. A rounded transition angle is formed between the bottom periphery of the semi-circular baffle and the bottom inner wall of the flow tank. A first stiffened flange is connected to the right side of the feed pipe, and a second stiffened flange is connected to the left side of the discharge pipe. Both the feed pipe and the discharge pipe are welded and fixed to the pipe interfaces of the flow tank. The first stiffened flange is welded and fixed to the feed pipe, and the second stiffened flange is welded and fixed to the discharge pipe.

[0006] By adopting the above technical solution, the device body is designed to be welded and fixed by a flow cell, a feed pipe, a discharge pipe, a first stiffening flange, and a second stiffening flange, which greatly facilitates the manufacturing of the device body. Welding and fixing can meet the high pressure resistance requirements, and the split manufacturing can meet the processing precision requirements of the complex internal structure of the flow cell. It is possible to process structural parts that are more suitable for installing sensors and channels for liquid flow on the flow cell, thus solving the problem that the one-piece flow cell in the prior art is not resistant to high pressure.

[0007] In a further embodiment, a coaxial annular protrusion is provided on the right side of the feed pipe, and a groove corresponding to the annular protrusion is provided on the left inner wall of the first stiffened flange.

[0008] By adopting the above technical solution, the feed pipe can be better connected to the neck of the first stiffening flange, which facilitates welding operations.

[0009] In a further embodiment, the top sensor interface of the flow cell is a cylinder with multiple stepped surfaces on its outer wall, and the diameter of the multiple stepped surfaces of the sensor interface decreases sequentially from top to bottom.

[0010] By adopting the above technical solution, since the sensor is a precision instrument in actual use, it is inevitable that it will be damaged during long-term operation. The multi-layered stepped cylindrical surface can be used to clamp the sensor to the sensor interface with clamps and sealing gaskets. The clamp clamping method greatly facilitates the maintenance and replacement of the sensor.

[0011] In a further embodiment, the bottom of the semi-circular baffle is provided with a through hole extending vertically, the bottom end of the through hole penetrating the bottom wall of the flow pool, and the top end of the through hole penetrating the top of the semi-circular baffle and communicating with the interior of the flow pool.

[0012] In further embodiments, the inner wall diameter of the feed tube, the inner wall diameter of the discharge tube and the inner wall diameter of the tube interface of the flow cell are uniform.

[0013] In further embodiments, the first reinforced flange plate is provided with a plurality of threaded through holes uniformly arranged in the axial direction.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. By setting the device body to be welded and fixed by the flow cell, the feed tube, the discharge tube, the first reinforced flange plate and the second reinforced flange plate, the manufacturing of the device body is greatly facilitated, the welding and fixing can meet the use condition of high pressure resistance, the split type manufacturing can meet the machining precision of the complex structure inside the flow cell, the structure part more suitable for installing the sensor and the passage part for supplying liquid to flow through can be machined on the flow cell, and the problem of the flow cell of the prior art not being resistant to high pressure is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model.

[0017] In the figure, 1 is a flow cell, 2 is a feed tube, 3 is a discharge tube, 4 is a sensor interface, 5 is a semicircular baffle, 6 is a first reinforced flange plate, and 7 is a second reinforced flange plate. DETAILED DESCRIPTION

[0018] The utility model will be further described in detail below in combination with the drawings.

[0019] Wherein, the same parts are indicated by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the direction towards or away from the specific part geometry. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present specification, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified. Figure 1 Embodiment 1:

[0020] As

[0021] Figure 1 ​As shown, a kind of high-pressure resistant flow cell, including flow cell 1, both sides of flow cell 1 are provided with pipe interface, the left side of flow cell 1 is communicated with feed pipe 2, the right side of flow cell 1 is communicated with discharge pipe 3, flow cell 1 is tee joint, the top of flow cell 1 is provided as sensor interface 4, flow sensor is fixedly installed in sensor interface, the inner bottom of flow cell 1 is provided with semicircular baffle 5 in middle position, semicircular baffle 5 is integrally formed with flow cell 1, the thickness of semicircular baffle 5 gradually increases from top to bottom, the top thickness of semicircular baffle 5 is 0mm, semicircular baffle 5 is provided with circular arc transition angle between bottom periphery and the bottom inner wall of flow cell 1, the right side of feed pipe 2 is communicated with first stiff flange 6, the left side of discharge pipe 3 is communicated with second stiff flange 7, feed pipe 2 and discharge pipe 3 are all welded with the pipe interface of flow cell 1, first stiff flange 6 is welded with feed pipe 2, second stiff flange 7 is welded with discharge pipe 3, the right side of feed pipe 2 is provided with coaxial annular protrusion, the left side inner wall of first stiff flange 6 is provided with the corresponding groove of annular protrusion, the top sensor interface 4 of flow cell 1 is cylindrical body with multilayer stepped surface on outer wall, the diameter of multilayer stepped surface of sensor interface 4 decreases in turn from top to bottom, the bottom of semicircular baffle 5 is provided with through hole penetrating up and down, the bottom end of through hole penetrates the bottom wall of flow cell 1, the top end of through hole penetrates the top of semicircular baffle 5 and communicates with the inside of flow cell 1, the inner wall diameter of feed pipe 2, the inner wall diameter of discharge pipe 3 and the inner wall diameter of the pipe interface of flow cell 1 are consistent, a plurality of threaded via holes are uniformly provided on first stiff flange 6 in axial direction.

[0022] In the implementation process, the device body is welded with flow cell, feed pipe, discharge pipe, first stiff flange and second stiff flange, which greatly facilitates the manufacture of device body, and welding can meet the use condition of high-pressure resistance, and the split type manufacturing can meet the machining precision of the complex structure inside flow cell, and the structure part suitable for installing sensor and the passage part for liquid flow can be machined on flow cell, so that the problem of high-pressure resistance of the integrally formed flow cell in the prior art is solved.

[0023] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments disclosed in the present application can be understood according to specific circumstances.

[0024] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a modification without creative contribution can be made to the embodiment according to needs by a person skilled in the art after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

Claims

1. A high pressure resistant flow cell, characterized by: The utility model provides a flow cell, which comprises a flow cell (1) provided with pipe interfaces on the left and right sides, a feed pipe (2) communicated with the left side of the flow cell (1), a discharge pipe (3) communicated with the right side of the flow cell (1), the flow cell (1) being a tee joint, a sensor interface (4) provided at the top of the flow cell (1), a flow sensor fixedly installed in the sensor interface (4), a semicircular baffle (5) provided at the inner bottom of the flow cell (1), the semicircular baffle (5) being integrally formed with the flow cell (1), the thickness of the semicircular baffle (5) gradually increasing from top to bottom, the top of the semicircular baffle (5) being 0mm in thickness, a circular arc transition corner being provided between the bottom periphery of the semicircular baffle (5) and the inner bottom wall of the flow cell (1), a first stiff flange (6) communicated with the right side of the feed pipe (2), a second stiff flange (7) communicated with the left side of the discharge pipe (3), the feed pipe (2) and the discharge pipe (3) being welded and fixed with the pipe interfaces of the flow cell (1), the first stiff flange (6) being welded and fixed with the feed pipe (2), and the second stiff flange (7) being welded and fixed with the discharge pipe (3).

2. A high pressure resistant flow cell according to claim 1, characterized in that: The right side of the feed pipe (2) is provided with a coaxial annular protrusion, and the left inner wall of the first stiff flange (6) is provided with a groove corresponding to the annular protrusion.

3. A high pressure flow cell as claimed in claim 1, wherein: The top sensor interface (4) of the flow cell (1) is a cylinder with a plurality of stepped surfaces on the outer wall, and the plurality of stepped surfaces of the sensor interface (4) gradually decrease in diameter from top to bottom.

4. A high pressure flow cell as claimed in claim 1, wherein: The bottom of the semicircular baffle (5) is provided with a through hole penetrating from top to bottom, the bottom end of the through hole penetrating through the bottom wall of the flow cell (1), and the top end of the through hole penetrating through the top of the semicircular baffle (5) and being communicated with the inside of the flow cell (1).

5. A high pressure flow cell as claimed in claim 1, wherein: The inner wall diameter of the feed pipe (2), the inner wall diameter of the discharge pipe (3) and the inner wall diameter of the pipe interface of the flow cell (1) are consistent.

6. A high pressure flow cell as claimed in claim 1, wherein: A plurality of threaded holes are uniformly formed on the first stiff flange (6) in the axial direction.

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