A sampling valve

Abstract

The utility model discloses a sampling valve relates to valve field, including valve body, valve stem and the sampling drive part of driving valve stem linear reciprocating motion, the lower part of valve body is equipped with the oblique channel, still includes the flush assembly of installing in the upper position of valve body, the flush assembly includes the pipe joint of inserting valve body and the switch of being connected with pipe joint, the one end of pipe joint inserts the water outlet of being equipped with to the dead angle of valve body in valve body. The utility model has the advantages of good cleaning effect, and good working stability.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically to a sampling valve. Background Technology

[0002] In the papermaking industry, when pulp samples are taken by a sampling valve, a cylinder drives the valve core to move linearly via the valve rod. After the feed port opens, the pulp enters the valve body and is then discharged through an inclined channel. Over time, a large amount of residue accumulates in the dead corners of the valve body, affecting the sampling quality. There is an urgent need for a sampling valve capable of cleaning the residue from the valve body. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a sampling valve with good cleaning effect.

[0004] The technical solution adopted by this utility model is as follows: a sampling valve, including a valve body, a valve stem, and a sampling drive component for driving the valve stem to reciprocate linearly. The lower part of the valve body is provided with an oblique channel, and it also includes a flushing assembly installed at the upper part of the valve body. The flushing assembly includes a pipe interface inserted into the valve body and a switch connected to the pipe interface. One end of the pipe interface inserted into the valve body is provided with a water outlet facing the dead corner of the valve body. The valve body has a feed inlet at the front end, and the valve stem has a conical valve core that extends out of the feed inlet at the front end.

[0005] The feed inlet of the valve body is a sleeve, and a flange is provided between the sleeve and the valve body to fix the two together.

[0006] A bracket is provided to fix the valve body and the sampling drive component, and a solenoid valve connected to the sampling drive component is installed on the bracket.

[0007] The sampling drive is a cylinder, and a throttle valve is provided between the cylinder and the solenoid valve.

[0008] The valve stem is provided with a fixed connecting sleeve, and an elastic element is provided between the connecting sleeve and the valve body to abut against each other.

[0009] The valve body is cylindrical, and a sealing packing assembly is provided between the valve body and the valve stem, with the outlet facing the packing assembly.

[0010] The valve body is provided with a guide seat at the front end for the valve stem to slide and engage. The beneficial effects of this utility model are: by setting a flushing component in the valve body, after the switch is turned on, the external high-pressure water flow enters the valve body through the pipe interface, and the water outlet faces the dead corner of the valve body, flushing the accumulated residue and discharging it from the inclined channel, which has the advantage of good cleaning effect. Attached Figure Description Figure 1 This is a schematic diagram of the sampling valve in an embodiment of the present invention.

[0011] Figure 2 This is a cross-sectional view of the sampling valve. Detailed Implementation

[0012] The embodiments of this utility model will be further described below with reference to the accompanying drawings: As shown in the figure, a sampling valve includes a valve body 1, a valve stem 2, and a sampling drive 3 that drives the valve stem 2 to reciprocate linearly. The lower part of the valve body 1 is provided with an inclined channel 4, and a flushing assembly is also provided at the upper part of the valve body 1. The flushing assembly includes a pipe interface 5 inserted into the valve body 1 and a switch 6 connected to the pipe interface 5. One end of the pipe interface 5 inserted into the valve body 1 is provided with a water outlet 7 facing the dead corner of the valve body 1. This technical solution, by setting a flushing assembly in the valve body, allows external high-pressure water to enter the valve body through the pipe interface after the switch is turned on, with the water outlet facing the dead corner of the valve body, flushing away the accumulated residue and discharging it from the inclined channel, thus having the advantage of good cleaning effect. The valve body 1 has a feed inlet at its front end, and the valve stem 2 has a valve core 8 that extends out of the feed inlet and is conical in shape. The conical surface of the valve core matches the edge of the feed inlet, which can improve the sealing effect when the valve is closed.

[0013] The feed inlet of the valve body 1 is provided with a sleeve 9, and a flange 10 is provided between the sleeve 9 and the valve body 1 to fix the two. It can withstand greater pipeline pressure and impact when the valve is closed. Moreover, the flange is easy to disassemble and facilitates the replacement of sampling valve parts.

[0014] A bracket 11 is provided to fix the valve body 1 and the sampling drive 3. A solenoid valve 12 connected to the sampling drive 3 is installed on the bracket 11. The sampling drive 3 is a cylinder. A throttle valve 13 is provided between the cylinder and the solenoid valve 12. A connecting sleeve 14 is fixedly installed on the valve stem 2. An elastic element 15 is provided between the connecting sleeve 14 and the valve body 1 to abut against the cylinder. The solenoid valve controls the cylinder, which can realize remote control. In addition, the throttle valve and the elastic element can cooperate to control the action of the valve opening and closing. The opening action speed can be adjusted according to the actual situation.

[0015] The valve body 1 is cylindrical, and a sealing packing assembly 17 is provided between the valve body 1 and the valve stem 2. The outlet 7 faces the packing assembly 17. As shown in the figure, the dead corner is located at the packing assembly. By opening the outlet towards this position, the accumulated residue can be flushed away.

[0016] The valve body 1 is provided with a guide seat 16 at the front end for the valve stem 2 to slide and cooperate, so as to ensure the stability of the valve stem sliding. In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A sampling valve, comprising a valve body (1), a valve stem (2), and a sampling drive (3) for driving the valve stem (2) to reciprocate linearly, wherein the lower part of the valve body (1) is provided with an oblique channel (4), characterized in that: It also includes a flushing assembly installed on the upper part of the valve body (1). The flushing assembly includes a pipe interface (5) inserted into the valve body (1) and a switch (6) connected to the pipe interface (5). One end of the pipe interface (5) inserted into the valve body (1) is provided with an outlet (7) facing the dead corner of the valve body (1).

2. The sampling valve according to claim 1, characterized in that: The valve body (1) has a feed inlet at the front end, and the valve stem (2) has a valve core (8) that extends out of the feed inlet and is conical in shape at the front end.

3. The sampling valve according to claim 2, characterized in that: The feed inlet of the valve body (1) is provided with a sleeve (9), and a flange (10) is provided between the sleeve (9) and the valve body (1) to fix the connection between the two.

4. The sampling valve according to claim 1, characterized in that: A bracket (11) is provided between the valve body (1) and the sampling drive (3) to fix the two together, and a solenoid valve (12) connected to the sampling drive (3) is installed on the bracket (11).

5. The sampling valve according to claim 1, characterized in that: The sampling drive (3) is a cylinder, and a throttle valve (13) is provided between the cylinder and the solenoid valve (12).

6. The sampling valve according to claim 1, characterized in that: The valve stem (2) is provided with a fixedly installed connecting sleeve (14), and an elastic element (15) is provided between the connecting sleeve (14) and the valve body (1) to abut against each other.

7. The sampling valve according to claim 1, characterized in that: The valve body (1) is cylindrical, and a sealing packing assembly (17) is provided between the valve body (1) and the valve stem (2), with the outlet (7) facing the packing assembly (17).

8. The sampling valve according to claim 1, characterized in that: The valve body (1) has a guide seat (16) at the front end for the valve stem (2) to slide and engage.

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