A sampling device for boiler water treatment

Abstract

The utility model discloses a kind of sampling devices for boiler water treatment, it is related to sampling valve field, including the sampling valve body connected with boiler water pipeline, the top of the sampling valve body is equipped with the valve mechanism that is penetrated to the sampling valve body below, the bottom end of the sampling valve body integrally formed has the sampling pipe that projects downward, the inner wall of the sampling pipe is threadedly connected with the bottle mouth part of sampling bottle, the inside of the sampling pipe is equipped with the blocking mechanism extending to the outside of the sampling pipe, the blocking mechanism is used to avoid the leakage problem of boiler water caused by accidental touch valve mechanism.

Description

Technical Field

[0001] This utility model relates to the field of sampling valves, specifically a sampling device for boiler water treatment. Background Technology

[0002] Boiler water absorbs the heat generated by combustion inside the boiler and turns into high-temperature, high-pressure steam. The steam is discharged outward through pipelines, realizing the exchange of heat with other equipment. After the boiler water is cooled, water quality monitoring is required to understand the acidity, alkalinity, hardness and other indicators of the boiler water in a timely manner, and to determine whether the water quality meets the boiler operation requirements.

[0003] In the existing technology, sampling valves are generally installed on boiler pipes for sampling boiler water. However, when the sampling valve is not being used for sampling, it may be accidentally activated, causing boiler water to be discharged directly. This problem results in the loss of boiler water. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for boiler water treatment in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for boiler water treatment, comprising a sampling valve body connected to a boiler water pipeline, a valve mechanism extending through to the bottom of the sampling valve body installed on the top of the sampling valve body, a downwardly protruding sampling tube integrally formed at the bottom end of the sampling valve body, the inner wall of the sampling tube being threadedly connected to the mouth of a sampling bottle, and a blocking mechanism extending to the outside of the sampling tube being installed inside the sampling tube, the blocking mechanism being used to prevent boiler water leakage caused by accidental activation of the valve mechanism.

[0006] As a further embodiment of this utility model: the valve mechanism includes a valve seat installed on the top of the sampling valve body, a sliding plate slidably installed on the inner wall of the valve seat, a lifting shaft fixedly installed at the center of the inner side of the sliding plate, the bottom end of the lifting shaft penetrating into the inner cavity of the sampling valve body, the top end of the lifting shaft penetrating into the top of the valve seat, a valve plug fixedly installed at the bottom end of the lifting shaft, and an outwardly protruding shaft integrally formed on the outer wall of the top end of the lifting shaft.

[0007] As a further embodiment of this utility model: the valve mechanism further includes a rotating seat fixedly installed at an eccentric position on the top plate of the valve seat. A rotating handle is rotatably installed on the outer wall of the rotating seat. A sliding groove is provided on the rotating handle to slide and connect with the shaft. The top of the sliding plate and the bottom of the inner wall of the valve seat directly abut against a No. 1 spring that is sleeved with the lifting shaft.

[0008] As a further improvement of this utility model: a drain hole is added to the lower interior of the sampling valve body, which matches the outer wall of the valve plug, and the drain hole is aligned with the center of the sampling tube.

[0009] As a further embodiment of this utility model: the blocking mechanism includes a limiting plate integrally formed on the outside of the sampling tube, a valve plate for sealing the water hole is slidably installed inside the limiting plate, a connecting rod extending through the limiting plate is fixedly installed on the flat end of the valve plate, and a movable handle is fixedly installed on one end of the connecting rod located outside the limiting plate.

[0010] As a further embodiment of this utility model: a guide shaft is slidably installed inside the valve plate, one end of the guide shaft is fixedly connected to one end of the inner wall of the limiting plate, and a second spring that is sleeved with the guide shaft is directly abutted between the inner wall of the limiting plate and one end of the valve plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a blocking mechanism, the design of the blocking mechanism can prevent boiler water from being discharged directly through the drain hole due to accidental contact of the valve body mechanism, thereby avoiding the waste of boiler water caused by accidental contact. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle.

[0016] In the diagram: 1. Sampling valve body; 2. Valve seat; 3. Rotating seat; 4. Lifting shaft; 5. Rotating handle; 6. Slide groove; 7. Sampling tube; 8. Limiting plate; 9. Sliding plate; 10. Spring No. 1; 11. Valve plug; 12. Valve plate; 13. Connecting rod; 14. Moving handle; 15. Guide shaft; 16. Spring No. 2. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-3 In this embodiment of the present invention, a sampling device for boiler water treatment includes a sampling valve body 1 connected to a boiler water pipeline. A valve mechanism extending through to the bottom of the sampling valve body 1 is installed on the top of the sampling valve body 1. A sampling tube 7 protruding downward is integrally formed at the bottom end of the sampling valve body 1. The inner wall of the sampling tube 7 is threadedly connected to the mouth of a sampling bottle. A blocking mechanism extending to the outside of the sampling tube 7 is installed inside the sampling tube 7. The blocking mechanism is used to prevent boiler water leakage caused by accidental activation of the valve mechanism.

[0019] In this embodiment: First, when sampling boiler water, the sampling bottle is threaded to the inner wall of the sampling tube 7. After the connection is completed, the valve mechanism is opened by pulling. At this time, the valve mechanism moves upward and removes the obstruction to the drain hole. Then, the blocking mechanism is pulled and opens under tension, removing the obstruction to the drain hole. At this time, the boiler water flows downward through the drain hole and enters the sampling bottle. After the sampling is completed, the valve mechanism and the blocking mechanism are closed.

[0020] Please refer to this carefully. Figure 1 and Figure 2 The valve mechanism includes a valve seat 2 installed at the top of the sampling valve body 1. A sliding plate 9 is slidably installed on the inner wall of the valve seat 2. A lifting shaft 4 is fixedly installed at the center of the inner wall of the sliding plate 9. The bottom end of the lifting shaft 4 passes through the inner cavity of the sampling valve body 1, and the top end of the lifting shaft 4 passes through the top of the valve seat 2. A valve plug 11 is fixedly installed at the bottom end of the lifting shaft 4. The outer wall of the top end of the lifting shaft 4 has an outwardly protruding shaft integrally formed. The valve mechanism also includes a rotating seat 3 fixedly installed at an eccentric position on the top plate of the valve seat 2. A rotating handle 5 is rotatably installed on the outer wall of the rotating seat 3. A groove 6 is opened on the rotating handle 5 to slide and connect with the shaft. The top of the sliding plate 9 and the bottom end of the inner wall of the valve seat 2 directly abut against a No. 1 spring 10 that is sleeved with the lifting shaft 4. A drain hole that matches the outer wall of the valve plug 11 is added to the lower part of the inner wall of the sampling valve body 1. The drain hole is aligned with the center of the sampling tube 7.

[0021] In this embodiment: after the sampling bottle and sampling tube 7 are connected, the rotating handle 5 is pulled down and rotated. During the rotation of the rotating handle 5, the slide 6 rotates up and pushes the shaft to move up. The shaft drives the lifting shaft 4 to move up. The lifting shaft 4 simultaneously drives the sliding plate 9 and the valve plug 11 to move up. At this time, the first spring 10 is compressed and the valve plug 11 opens up, removing the obstruction to the drain hole.

[0022] Then pull the blocking mechanism to remove the blockage of the drain hole. At this time, the boiler water enters the sampling bottle and the sampling is completed. After the sampling is completed, remove the force applied to the rotating handle 5. At this time, the first spring 10 is reset. The reset first spring 10 pushes the sliding plate 9 to reset the valve plug 11.

[0023] It should be noted that the outer wall of the valve plug 11 is a conical surface that is wider at the top and narrower at the bottom, and the inner wall of the drain hole matches the outer wall of the valve plug 11. A sealing ring is installed on the mating surface of the two, so the reset valve plug 11 can effectively block the drain hole.

[0024] Please refer to this carefully. Figure 2 and Figure 3 The blocking mechanism includes a limiting plate 8 integrally formed on the outside of the sampling tube 7. A valve plate 12 for sealing the water hole is slidably installed inside the limiting plate 8. A connecting rod 13 extending through the outside of the limiting plate 8 is fixedly installed on the flat end of the valve plate 12. A movable handle 14 is fixedly installed on one end of the connecting rod 13 located outside the limiting plate 8. A guide shaft 15 is slidably installed inside the valve plate 12. One end of the guide shaft 15 is fixedly connected to one end of the inner wall of the limiting plate 8. A second spring 16, which is sleeved with the guide shaft 15, directly abuts against the inner wall of the limiting plate 8 and one end of the valve plate 12.

[0025] In this embodiment: During sampling, after the valve mechanism is opened, the moving handle 14 is pulled, and the moving handle 14 drives the valve plate 12 to slide in the inner cavity of the limiting plate 8 through the connecting rod 13 until the valve plate 12 is separated from the drain hole. At this time, the boiler water flows into the sampling bottle through the drain hole. When the valve plate 12 moves, the valve plate 12 slides along the outer wall of the guide shaft 15, and the second spring 16 is compressed. After sampling is completed, the force applied to the moving handle 14 is removed, and the second spring 16 is reset, realizing the reset of the valve plate 12 and sealing the drain hole.

[0026] The design of the blocking mechanism can prevent boiler water from being discharged when the sampling bottle is not connected due to accidental activation of the valve mechanism.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sampling device for boiler water treatment, comprising a sampling valve body (1) connected to a boiler water pipeline, characterized in that, The top of the sampling valve body (1) is equipped with a valve mechanism that extends through to the bottom of the sampling valve body (1). The bottom end of the sampling valve body (1) is integrally formed with a downward protruding sampling tube (7). The inner wall of the sampling tube (7) is threadedly connected to the bottle mouth of the sampling bottle. The inside of the sampling tube (7) is equipped with a blocking mechanism that extends to the outside of the sampling tube (7). The blocking mechanism is used to prevent boiler water leakage caused by accidental contact with the valve mechanism.

2. The sampling device for boiler water treatment according to claim 1, characterized in that, The valve mechanism includes a valve seat (2) installed at the top of the sampling valve body (1). A sliding plate (9) is slidably installed on the inner wall of the valve seat (2). A lifting shaft (4) is fixedly installed at the center of the inner wall of the sliding plate (9). The bottom end of the lifting shaft (4) extends into the inner cavity of the sampling valve body (1), and the top end of the lifting shaft (4) extends into the top of the valve seat (2). A valve plug (11) is fixedly installed at the bottom end of the lifting shaft (4). The outer wall of the top end of the lifting shaft (4) has an outwardly protruding shaft integrally formed.

3. A sampling device for boiler water treatment according to claim 2, characterized in that, The valve mechanism also includes a rotating seat (3) fixedly installed at the eccentric position of the top plate of the valve seat (2). A rotating handle (5) is rotatably installed on the outer wall of the rotating seat (3). A sliding groove (6) is provided on the rotating handle (5) and is slidably connected to the shaft. The top of the sliding plate (9) and the bottom of the inner wall of the valve seat (2) are directly abutted by a No. 1 spring (10) which is sleeved with the lifting shaft (4).

4. A sampling device for boiler water treatment according to claim 3, characterized in that, The sampling valve body (1) has a drain hole that matches the outer wall of the valve plug (11) at the bottom inside, and the drain hole is aligned with the center of the sampling tube (7).

5. A sampling device for boiler water treatment according to claim 4, characterized in that, The blocking mechanism includes a limiting plate (8) integrally formed on the outside of the sampling tube (7). A valve plate (12) for sealing the water hole is slidably installed inside the limiting plate (8). A connecting rod (13) that extends through the limiting plate (8) is fixedly installed on the flat end of the valve plate (12). A movable handle (14) is fixedly installed on one end of the connecting rod (13) located outside the limiting plate (8).

6. A sampling device for boiler water treatment according to claim 5, characterized in that, A guide shaft (15) is slidably installed inside the valve plate (12). One end of the guide shaft (15) is fixedly connected to one end of the inner wall of the limiting plate (8). A second spring (16) that is sleeved with the guide shaft (15) directly abuts against one end of the valve plate (12) on the inner wall of the limiting plate (8).

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