Polarogram flow cell

Abstract

The utility model relates to the technical field of detection devices, in particular to a polarogram flow cell which comprises a shell, a hollow cavity is formed in the shell, a liquid inlet is formed in the front end of the shell and communicated with the hollow cavity, and first sanitary clamping sleeves are arranged on the front side of the liquid inlet at intervals; and concave annular grooves are formed in the rear end port surface of the first sanitary cutting sleeve and the front end port surface of the liquid inlet along the edges. When the nozzle is used, the connection between the nozzle and the nozzle end seat is limited through the fourth sanitary hoop, the nozzle is fixedly arranged on the nozzle end seat, the installation sealing performance between the nozzle and the nozzle end seat is improved by matching with the O-shaped ring, and the nozzle is used for controlling the spraying direction, the flow and the distribution of fluid in a flow cell. The sensitivity and the accuracy of the flow cell are improved, the stable performance of the flow cell in the long-term operation process is ensured, and the service life of the flow cell is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field especially relates to a polarographic flow cell. BACKGROUND

[0002] The polarographic flow cell is a kind of electrolytic cell for polarography (or voltammetry), can realize the continuous automatic monitoring in water phase and gas phase medium, and improve the sensitivity and selectivity of method.In addition, the polarographic flow cell has a wide range of applications in electrochemical analysis instrument, in recent years due to the need of industrial process control and automatic monitoring, there are various forms of electrochemical flow cell, polarographic flow cell as one of them, not only realizes the continuous automatic monitoring, also improves the sensitivity and selectivity of analytical method.In general, the polarographic flow cell is an important electrochemical analysis tool, with simple structure, easy operation, high sensitivity and good selectivity and other advantages, has a wide range of applications in various fields.

[0003] Due to the application field of flow cell is relatively wide, such as processing toxic, harmful or corrosive fluid fluid medium, or electrochemical analysis, drug dissolution test, etc., flow cell needs to enhance the sealing structure, and common sealing structure cannot satisfy actual demand, and cannot keep stable performance in long-term operation process, to affect the accuracy and safety in experiment or production process. UTILITY MODEL CONTENT

[0004] The skilled person provides a polarographic flow cell to solve the problems raised in the above background.

[0005] To solve the above technical problems, the utility model provides a polarographic flow cell, including the casing, the hollow cavity is opened in casing inside, the front end of casing is provided with liquid inlet, and the liquid inlet is connected with the hollow cavity, and the front side of liquid inlet is provided with the first sanitary level collet, and the rear end port surface of first sanitary level collet is provided with the concave annular groove along the edge, and the front end port surface of liquid inlet is provided with the concave annular groove along the edge, and the first sanitary level gasket is arranged between the liquid inlet and the first sanitary level collet, and the front and rear side end surfaces of first sanitary level gasket are provided with the convex annular strip corresponding with annular groove, and the ring side of first sanitary level gasket is fixedly connected with annular sheet, and the first sanitary level clamp is sleeved outside the connecting place of liquid inlet and first sanitary level collet, and the first sanitary level collet is limited to the connection of liquid inlet and first sanitary level collet, so that liquid inlet and first sanitary level collet are respectively high adhesion sealing to first sanitary level collet, and the lower end of casing is provided with liquid outlet, and the liquid outlet is connected with the hollow cavity, and the lower side of liquid outlet is provided with the second sanitary level collet, and the upper end port surface of second sanitary level collet is provided with the concave annular groove along the edge, and the lower end port surface of liquid outlet is provided with the concave annular groove along the edge, and the second sanitary level gasket is arranged between the liquid outlet and the second sanitary level collet, and the upper and lower side end surfaces of second sanitary level gasket are provided with the convex annular strip corresponding with annular groove, and the ring side of second sanitary level gasket is fixedly connected with annular sheet, and the second sanitary level clamp is sleeved outside the connecting place of liquid outlet and second sanitary level collet, and the second sanitary level collet and first sanitary level collet are all 1 inch collet, and the second sanitary level collet is limited to the connection of liquid outlet and second sanitary level collet, so that liquid outlet and second sanitary level collet are respectively high adhesion sealing to second sanitary level gasket.

[0006] In a preferred embodiment: the upper side of the rear end of the casing is provided with a sensor connected to the hollow cavity, and the sensor is used to measure specific components or parameters in the liquid.

[0007] In a preferred embodiment: the connecting end surface of the sensor and the casing is provided with a concave annular groove along the edge, and a third sanitary level gasket is arranged between the sensor and the casing, and the two side end surfaces of the third sanitary level gasket are provided with convex annular strips corresponding to the annular grooves, and the ring side of the third sanitary level gasket is fixedly connected with an annular sheet, and a third sanitary level clamp is sleeved outside the connecting place of the sensor and the casing, and the third sanitary level clamp is a 1.5 inch clamp, and the third sanitary level clamp is limited to the connection of the sensor and the casing, so that the sensor and the casing are respectively high adhesion sealing to the third sanitary level gasket.

[0008] In a preferred embodiment: the left end of the casing is provided with a nozzle port, and a nozzle end seat is fixedly connected to the nozzle port, and a slidable nozzle is arranged in the nozzle end seat, and the nozzle is used to control the injection direction, flow rate and distribution of the fluid in the flow cell.

[0009] In a preferred embodiment: the nozzle can be selected according to the use of blind nozzle, steam nozzle, pressurized nozzle and water nozzle, the nozzle jet port is arranged correspondingly with the sensor.

[0010] In a preferred embodiment: the side end of the nozzle is provided with an annular groove, and an O-ring is arranged in the annular groove, the O-ring is used as a sealing element of the nozzle and the nozzle end seat, a fourth sanitary clamp is sleeved outside the side end connecting port of the nozzle and the nozzle end seat, the fourth sanitary clamp is a 0.5 inch clamp, the connection of the nozzle and the nozzle end seat is limited by the fourth sanitary clamp, the nozzle is fixedly installed on the nozzle end seat, and the installation sealing property between the nozzle and the nozzle end seat is increased in cooperation with the O-ring.

[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 connection of the liquid inlet and the first sanitary clamp is limited by the first sanitary clamp, the convex ring strip of the first sanitary gasket is correspondingly arranged in the annular groove of the connecting end surface of the liquid inlet and the first sanitary clamp, the liquid inlet and the first sanitary clamp are highly sealed to the first sanitary clamp respectively, the connection of the liquid outlet and the second sanitary clamp is limited by the second sanitary clamp, the convex ring strip of the second sanitary gasket is correspondingly arranged in the annular groove of the connecting end surface of the liquid outlet and the second sanitary clamp, the liquid outlet and the second sanitary clamp are highly sealed to the second sanitary gasket respectively, the sealing property between the fluid in the pipeline and the flow tank is increased, external impurities such as dust and water vapor are prevented from entering the flow tank, the fluid in the flow tank is prevented from being polluted, internal fluid leakage is reduced, and the accuracy and safety of the experiment or production process are ensured.

[0013] 2. When the utility model is used, the connection of the nozzle and the nozzle end seat is limited by the fourth sanitary clamp, the nozzle is fixedly installed on the nozzle end seat, the installation sealing property between the nozzle and the nozzle end seat is increased in cooperation with the O-ring, the nozzle is used for controlling the jet direction, flow and distribution of the fluid in the flow tank, the sensitivity and accuracy of the flow tank are improved, the performance of the flow tank is ensured to be stable in a long-term operation process, and the service life is prolonged. ACCURACY

[0014] Fig. 1 It is a structural schematic view provided by the application;

[0015] Fig. 2 It is a front view provided by the application;

[0016] Fig. 3 It is a sectional view of the shell provided by the application;

[0017] Fig. 4is a cross-sectional view of a nozzle provided by the present application;

[0018] In the figure: 1, housing; 2, first sanitary ferrule; 3, second sanitary ferrule; 4, first sanitary gasket; 5, second sanitary gasket; 6, first sanitary clamp; 7, second sanitary clamp; 8, sensor; 9, third sanitary gasket; 10, third sanitary clamp; 11, nozzle; 12, fourth sanitary clamp; 13, O-ring; 14, nozzle end seat. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be interpreted broadly, for example, "connected" can be wall-mounted connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0022] Please refer to Figs. 1-4In the embodiment, a polarographic flow cell is provided, comprising a shell 1, a hollow cavity is formed in the inside of the shell 1, a liquid inlet is arranged at the front end of the shell 1, the liquid inlet is communicated with the hollow cavity, a first sanitary level sleeve 2 is arranged at the front side of the liquid inlet in a spaced manner, the rear end port surface of the first sanitary level sleeve 2 and the front end port surface of the liquid inlet are both formed with a concave annular groove along the edge, a first sanitary level gasket 4 is arranged between the liquid inlet and the first sanitary level sleeve 2, the front and rear side end surfaces of the first sanitary level gasket 4 are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the first sanitary level gasket 4 is fixedly connected with an annular plate, a first sanitary level clamp 6 is sleeved and limited outside the connection between the liquid inlet and the first sanitary level sleeve 2, the connection between the liquid inlet and the first sanitary level sleeve 2 is limited by the first sanitary level clamp 6, so that the liquid inlet and the first sanitary level sleeve 2 respectively tightly seal the first sanitary level clamp 6, a liquid outlet is arranged at the lower end of the shell 1, the liquid outlet is communicated with the hollow cavity, a second sanitary level sleeve 3 is arranged below the liquid outlet in a spaced manner, the upper end port surface of the second sanitary level sleeve 3 and the lower end port surface of the liquid outlet are both formed with a concave annular groove along the edge, a second sanitary level gasket 5 is arranged between the liquid outlet and the second sanitary level sleeve 3, the upper and lower side end surfaces of the second sanitary level gasket 5 are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the second sanitary level gasket 5 is fixedly connected with an annular plate, a second sanitary level clamp 7 is sleeved and limited outside the connection between the liquid outlet and the second sanitary level sleeve 3, the second sanitary level clamp 7 and the first sanitary level clamp 6 are both 1-inch clamps, the connection between the liquid outlet and the second sanitary level sleeve 3 is limited by the second sanitary level clamp 7, so that the liquid outlet and the second sanitary level sleeve 3 respectively tightly seal the second sanitary level gasket 5;

[0023] The upper side of the rear end of the shell 1 is provided with a sensor 8 connected with the hollow cavity, the sensor 8 is used for measuring specific components or parameters in the liquid, the sensor 8 and the connecting end surface of the shell 1 are both formed with a concave annular groove along the edge, a third sanitary level gasket 9 is arranged between the sensor 8 and the shell 1 in a spaced manner, the two side end surfaces of the third sanitary level gasket 9 are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the third sanitary level gasket 9 is fixedly connected with an annular plate, a third sanitary level clamp 10 is sleeved and limited outside the connection between the sensor 8 and the shell 1, the third sanitary level clamp 10 is a 1.5-inch clamp, the connection between the sensor 8 and the shell 1 is limited by the third sanitary level clamp 10, so that the sensor 8 and the shell 1 respectively tightly seal the third sanitary level gasket 9;

[0024] The left end of the shell 1 is provided with a nozzle opening, and the nozzle opening is fixedly connected with a nozzle end seat 14, and a slidable nozzle 11 is arranged in the nozzle end seat 14, the nozzle 11 is used for controlling the injection direction, flow and distribution of fluid in the flow cell, the nozzle 11 can be selected according to the use condition, and the nozzle 11 can be a blind nozzle, a steam nozzle, a pressurized nozzle and a water nozzle, the injection opening of the nozzle 11 is correspondingly arranged with the sensor 8, a ring-shaped groove is arranged at the side end of the nozzle 11, and an O-shaped ring 13 is arranged in the ring-shaped groove, the O-shaped ring 13 is used as a sealing element of the nozzle 11 and the nozzle end seat 14, a fourth sanitary level clamp 12 is sleeved outside the side end connecting port of the nozzle 11 and the nozzle end seat 14, the fourth sanitary level clamp 12 is a 0.5 inch clamp, the connection between the nozzle 11 and the nozzle end seat 14 is limited by the fourth sanitary level clamp 12, the nozzle 11 is fixedly installed on the nozzle end seat 14, and the installation sealing property between the nozzle 11 and the nozzle end seat 14 is increased in cooperation with the O-shaped ring 13.

[0025] The working principle of the utility model is: when the utility model is used, the connection between the liquid inlet and the first sanitary level clamp sleeve 2 is limited by the first sanitary level clamp 6, the convex ring strip of the first sanitary level gasket 4 corresponds to the ring groove of the connecting end face of the liquid inlet and the first sanitary level clamp sleeve 2, the liquid inlet and the first sanitary level clamp sleeve 2 are respectively highly attached to the first sanitary level clamp 6 and are sealed, the connection between the liquid outlet and the second sanitary level clamp sleeve 3 is limited by the second sanitary level clamp 7, the convex ring strip of the second sanitary level gasket 5 corresponds to the ring groove of the connecting end face of the liquid outlet and the second sanitary level clamp sleeve 3, the liquid outlet and the second sanitary level clamp sleeve 3 are respectively highly attached to the second sanitary level gasket 5 and are sealed, the sealing property between the fluid in the pipeline and the flow cell is increased, external impurities such as dust and water vapor are prevented from entering the flow cell, the fluid in the flow cell is prevented from being polluted, internal fluid leakage is reduced, the accuracy and safety of the experiment or production process are ensured, the connection between the nozzle 11 and the nozzle end seat 14 is limited by the fourth sanitary level clamp 12, the nozzle 11 is fixedly installed on the nozzle end seat 14, the installation sealing property between the nozzle 11 and the nozzle end seat 14 is increased in cooperation with the O-shaped ring 13, and the nozzle 11 is used for controlling the injection direction, flow and distribution of fluid in the flow cell, the sensitivity and accuracy of the flow cell are improved, the performance of the flow cell is ensured to be stable in the long-term operation process, and the service life is prolonged.

[0026] The above merely describes a preferred specific implementation manner of the utility model, but the design concept of the utility model is not limited to this, any skilled person in the technical field makes non-essential changes to the utility model by using the concept within the technical range disclosed by the utility model, and this belongs to the act of infringing the protection range of the utility model.

Claims

1. A polarographic flow cell comprising a housing (1), characterized in that The shell (1) is internally provided with a hollow cavity, the front end of the shell (1) is provided with a liquid inlet, the liquid inlet is communicated with the hollow cavity, the front side of the liquid inlet is provided with a first sanitary level sleeve (2) at intervals, the rear end port surface of the first sanitary level sleeve (2) and the front end port surface of the liquid inlet are both provided with a concave annular groove along the edge, a first sanitary level gasket (4) is arranged between the liquid inlet and the first sanitary level sleeve (2), the front and rear side end surfaces of the first sanitary level gasket (4) are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the first sanitary level gasket (4) is fixedly connected with an annular piece, a first sanitary level clamp (6) is sleeved outside the connection between the liquid inlet and the first sanitary level gasket (4), the lower end of the shell (1) is provided with a liquid outlet, the liquid outlet is communicated with the hollow cavity, the lower side of the liquid outlet is provided with a second sanitary level sleeve (3) at intervals, the upper end port surface of the second sanitary level sleeve (3) and the lower end port surface of the liquid outlet are both provided with a concave annular groove along the edge, a second sanitary level gasket (5) is arranged between the liquid outlet and the second sanitary level sleeve (3), the upper and lower side end surfaces of the second sanitary level gasket (5) are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the second sanitary level gasket (5) is fixedly connected with an annular piece, a second sanitary level clamp (7) is sleeved outside the connection between the liquid outlet and the second sanitary level sleeve (3), the second sanitary level clamp (7) and the first sanitary level clamp (6) are both 1 inch clamps.

2. A polarographic flow cell according to claim 1, characterised in that The rear upper side of the shell (1) is provided with a sensor (8) connected with the hollow cavity.

3. A polarographic flow cell according to claim 2, characterised in that The sensor (8) and the connecting end surface of the shell (1) are both provided with a concave annular groove along the edge, a third sanitary level gasket (9) is arranged between the sensor (8) and the shell (1) at intervals, the two side end surfaces of the third sanitary level gasket (9) are both provided with a protruding annular strip corresponding to the annular groove, the annular side of the third sanitary level gasket (9) is fixedly connected with an annular piece, a third sanitary level clamp (10) is sleeved outside the connection between the sensor (8) and the shell (1), the third sanitary level clamp (10) is a 1.5 inch clamp.

4. A polarographic flow cell according to claim 1, wherein The left end of the shell (1) is provided with a nozzle port, the nozzle port is fixedly connected with a nozzle end seat (14), the nozzle end seat (14) is provided with a slidable nozzle (11) inside, the nozzle (11) is used for controlling the jetting direction, flow and distribution of fluid in the flow cell.

5. A polarographic flow cell according to claim 4, characterised in that The nozzle (11) can select a blind nozzle, a steam nozzle, a pressurized nozzle and a water nozzle according to the use condition, the jetting port of the nozzle (11) is correspondingly arranged with the sensor (8).

6. A polarographic flow cell according to claim 5, characterised in that The side end of the nozzle (11) is provided with an annular groove, an O-shaped ring (13) is arranged in the annular groove, the O-shaped ring (13) is used as a sealing piece of the nozzle (11) and the nozzle end seat (14), a fourth sanitary level clamp (12) is sleeved outside the side end connecting port of the nozzle (11) and the nozzle end seat (14), the fourth sanitary level clamp (12) is a 0.5 inch clamp.

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