Reducing flow cell

Abstract

The utility model relates to the technical field of measuring equipment, in particular to a variable-diameter flow cell which comprises a flow cell body, a V-shaped cavity is formed in the middle in the flow cell body, a measuring port communicated with the V-shaped cavity is fixedly installed at the lower end of the flow cell body, sensors are arranged at the lower end of the measuring port at intervals, and calipers are fixed to the annular side of the connecting position of the measuring port and the sensors. When the flow regulating device is used, the external connecting pipe sends a fluid sample into the flow cell through the conical reducer pipe, the reducer pipe reduces runoff of the fluid sample entering the flow cell and limits the throughput of the fluid, so that the purpose of regulating the flow is achieved, and when the runoff of the flow cell is reduced, the flow velocity of the fluid is increased; according to the fluid guiding device, the fluid in the non-ideal flowing state is guided, so that the fluid in the non-ideal flowing state flows more stably, unnecessary energy loss and fluid disturbance are reduced, and the circulation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring equipment technical field especially relates to a variable diameter flow cell. BACKGROUND

[0002] The flow cell is a closed container with water sample inlet and outlet for installing conductivity electrode and temperature measuring sensor. It has wide application in water quality monitoring, drug dissolution determination and soil water conductivity measurement. Due to the consideration of fluid mechanics performance, manufacturing and installation convenience and cost effectiveness, the pipe diameter of the flow cell is single. In the case of low flow or flow state not ideal, vortex and turbulent flow may occur, which leads to unstable fluid flow, increases unnecessary energy loss and fluid disturbance, and further reduces flow efficiency. SUMMARY

[0003] The skilled in the art provides a variable diameter flow cell to solve the problems in the background.

[0004] To solve the above technical problems, the utility model provides a variable diameter flow cell, including flow cell, the middle part of flow cell is equipped with V type cavity, the lower end of flow cell is fixedly installed with the measuring port communicated with V type cavity, the lower end of measuring port is equipped with sensor at intervals, the connecting place of measuring port and sensor is fixed with calliper ring side, the calliper is tightened through bolt, and the distance between measuring port and sensor is reduced, so that the sealing property of measuring port and sensor is guaranteed respectively with first gasket, and fluid leakage is reduced.

[0005] The left and right ends of the flow cell are provided with tapered variable diameter pipes connected with the V type cavity, and the variable diameter pipes are threadedly connected with the flow cell. The variable diameter pipes limit the flow amount of the fluid by reducing the radial flow of the fluid sample into the flow cell, so as to achieve the purpose of adjusting the flow. When the radial flow of the flow cell is reduced, the flow rate of the fluid is increased, which may generate higher pressure. The fluid in the non-ideal flow state is guided to flow more smoothly, reduce unnecessary energy loss and fluid disturbance, and improve the flow efficiency.

[0006] In a preferred embodiment, a first gasket is arranged between the sensor and the measuring port, and an annular protrusion is arranged on the upper end surface of the first gasket.

[0007] In a preferred embodiment, a groove corresponding to the annular protrusion of the first gasket is arranged on the lower end surface of the measuring port.

[0008] In a preferred embodiment: the upper end of the flow cell is provided with a mounting hole, the mounting hole is used to fix the laser emitter, the laser emitter emits a laser beam to the fluid sample in the flow cell, and the sensor is responsible for receiving the refracted laser beam and converting it into a measurable signal such as voltage, current, etc. for subsequent recording, processing and analysis.

[0009] In a preferred embodiment: the outer pipe of the two variable diameter pipes is provided with a flange, and the second gasket is arranged between the flange and the variable diameter pipe.

[0010] In a preferred embodiment: the flange and the variable diameter pipe are communicated and fixed by a plurality of annularly arranged bolt groups, so that the size of the variable diameter pipe can be selected according to the diameter of the external liquid inlet pipeline, thereby increasing the convenience of the flow cell in connection with different models of pipe diameters, thereby increasing the adaptability of the flow cell and increasing the practical ability.

[0011] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0012] 1. When the utility model is used, the variable diameter pipe corresponding to the size of the flange of the external pipe is selected in advance, the variable diameter pipe is screwed on the flow cell, the flange of the external pipe and the variable diameter pipe are connected by a plurality of bolt groups, and the second gasket is added between the flange and the variable diameter pipe to increase the sealing performance, thereby increasing the convenience of the flow cell in connection with different models of pipe diameters, thereby increasing the adaptability of the flow cell and increasing the practical ability.

[0013] 2. When the utility model is used, the external pipe sends the fluid sample into the flow cell through the tapered variable diameter pipe, the variable diameter pipe limits the flow amount of the fluid by reducing the radial flow of the fluid sample into the flow cell, so as to achieve the purpose of adjusting the flow, and when the radial flow of the flow cell is reduced, the flow rate of the fluid is increased, so that higher pressure can be generated, and the fluid in an undesirable flow state is guided to flow more smoothly, unnecessary energy loss and fluid disturbance are reduced, and the flow efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is the structural schematic diagram provided by the application;

[0015] Fig. 2 is the side view provided by the application;

[0016] Fig. 3 is the cross-sectional view provided by the application;

[0017] In the drawings: 1, flow cell; 2, measurement port; 3, first gasket; 4, caliper; 5, sensor; 6, flange; 7, second gasket; 8, bolt group; 9, mounting hole; 10, variable diameter pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the utility model.

[0019] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be wall-mounted connection, can be detachable connection, or can be integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through an intermediate medium, or can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Please refer to Figs. 1-3 In the embodiment, a variable diameter flow cell is provided, which comprises a flow cell 1, a V-shaped cavity is formed in the middle of the flow cell 1, a measuring port 2 in communication with the V-shaped cavity is fixedly installed at the lower end of the flow cell 1, a sensor 5 is arranged at the lower end of the measuring port 2 in a spaced manner, a first gasket 3 is arranged between the sensor 5 and the measuring port 2, an annular protrusion is arranged on the upper end face of the first gasket 3, a groove corresponding to the annular protrusion on the first gasket 3 is formed on the lower end face of the measuring port 2, and a caliper 4 is fixedly arranged on the ring side of the connection between the measuring port 2 and the sensor 5. The tightening work of the caliper 4 is carried out through bolts, so as to reduce the distance between the measuring port 2 and the sensor 5, thereby ensuring the sealing property of the measuring port 2 and the sensor 5 with the first gasket 3 respectively, reducing fluid leakage, and an installation hole 9 is formed in the middle of the upper end of the flow cell 1. The installation hole 9 is used for fixedly installing a laser emitter. The laser emitter emits a laser beam to the fluid sample in the flow cell 1, and the sensor 5 is responsible for receiving the refracted laser beam and converting it into a measurable signal such as voltage, current, etc. for subsequent recording, processing and analysis.

[0022] The left and right ends of the flow cell 1 are provided with tapered reducing pipes 10 connected with the V-shaped cavity, and the reducing pipe 10 is threadedly connected with the flow cell 1, the reducing pipe 10 limits the flow amount of the fluid by reducing the radial flow of the fluid sample into the flow cell 1, so as to achieve the purpose of adjusting the flow, when the radial flow of the flow cell is reduced, the flow rate of the fluid is increased, so that higher pressure can be generated, and the fluid in the non-ideal flow state is guided to flow more smoothly, unnecessary energy loss and fluid disturbance are reduced, so as to improve the flow efficiency, the outer pipe openings of the two reducing pipes 10 are provided with flanges 6, the second gaskets 7 are arranged between the flanges 6 and the reducing pipes 10, and the flanges 6 and the reducing pipes 10 are communicated and fixed by a plurality of annularly arranged bolt groups 8, so that the size of the reducing pipe 10 can be selected according to the diameter of the external liquid inlet pipeline, so that the flow cell 1 is convenient to connect and use for different pipe diameters, and the adaptability and practicality of the flow cell 1 are improved.

[0023] The working principle of the utility model is:

[0024] In use, the reducing pipe 10 corresponding in size to the flange 6 of the external pipe is selected in advance, the reducing pipe 10 is screwed on the flow cell 1, the flange 6 of the external pipe and the reducing pipe 10 are connected by the bolt groups 8, and the second gaskets 7 are added between the flange 6 and the reducing pipe 10 to increase the sealing property, so that the flow cell 1 is convenient to connect and use for different pipe diameters, and the adaptability and practicality of the flow cell 1 are improved, then the external pipe sends the fluid sample into the flow cell 1 through the tapered reducing pipe 10, the reducing pipe 10 limits the flow amount of the fluid by reducing the radial flow of the fluid sample into the flow cell 1, so as to achieve the purpose of adjusting the flow, when the radial flow of the flow cell is reduced, the flow rate of the fluid is increased, so that higher pressure can be generated, and the fluid in the non-ideal flow state is guided to flow more smoothly, unnecessary energy loss and fluid disturbance are reduced, so as to improve the flow efficiency.

[0025] The above is only a preferred specific embodiment of the utility model, but the design concept of the utility model is not limited to this, any skilled person in the art can make non-essential changes to the utility model within the technical range disclosed by the utility model, and the changes belong to the act of infringing the protection range of the utility model.

Claims

1. A variable diameter flow cell comprising a flow cell (1), characterized in that, The V-shaped cavity is arranged in the middle of the flow cell (1), the measuring port (2) communicated with the V-shaped cavity is fixedly installed at the lower end of the flow cell (1), the sensor (5) is arranged at the lower end of the measuring port (2) in a spaced mode, and the calipers (4) are fixedly arranged at the connecting position of the measuring port (2) and the sensor (5). The taper variable-diameter pipes (10) connected with the V-shaped cavity are arranged at the left and right ends of the flow cell (1), and the variable-diameter pipes (10) are threadedly connected with the flow cell (1).

2. A variable flow cell according to claim 1, wherein, The first gasket (3) is arranged between the sensor (5) and the measuring port (2), and the annular protrusion is arranged on the upper end surface of the first gasket (3).

3. A variable flow cell according to claim 2, wherein, The recess corresponding to the annular protrusion on the first gasket (3) is arranged on the lower end surface of the measuring port (2).

4. The variable flow channel of claim 1, wherein, The mounting hole (9) is arranged in the middle of the upper end of the flow cell (1), and the mounting hole (9) is used for fixedly installing the laser emitter.

5. The variable flow channel of claim 1, wherein, The flanges (6) are arranged at the outer pipe openings of the two variable-diameter pipes (10), and the second gasket (7) is arranged between the flange (6) and the variable-diameter pipe (10).

6. A variable flow cell according to claim 5, wherein, The flange (6) and the variable-diameter pipe (10) are communicated and fixed by the annular arranged bolt groups (8).

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