Split spring back pressure type atomizing nozzle type temperature and pressure reducer

Abstract

The utility model provides a split spring back pressure atomizing nozzle type temperature and pressure reducer, which relates to the technical field of temperature and pressure reducers and comprises a nozzle, a pressure relief cavity is arranged on one side of the nozzle, a connecting column is arranged on one side, far away from the pressure relief cavity, of the nozzle, and a limiting sleeve is sleeved on the surface of the connecting column. A valve element is installed on the inner side of the pressure relief cavity, a valve rod is arranged on one side of the valve element, one end of the valve rod penetrates through the nozzle, and the penetrating end of the valve rod is connected with the limiting sleeve through a fixing pin; the rotary knob located in the groove in the valve element is rotated to drive the threaded rod to rotate, the threaded rod drives the movable ring to move so that the adjusting plate can move, the initial compression amount of the spring can be changed by changing the distance between the adjusting plate and the connecting column, and due to the fact that the pressure of the spring is in direct proportion to the compression amount of the spring, the compression amount can be adjusted. Therefore, the pressure value required by the high-pressure steam to jack the valve core open can be changed.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature and pressure reducing devices, in particular to a split spring back pressure atomizing nozzle type temperature and pressure reducing device. Background Art

[0002] The temperature and pressure reducer is an indispensable temperature and pressure regulating component in the boiler heating system, and it is also an important pressure-bearing component. Therefore, in the smelting, metallurgical and other industries, in order to ensure its safe and reliable operation, the temperature and pressure reducer is of great significance to the safe and economical operation of the entire boiler heating system.

[0003] The patent with publication number CN202121762095.2 discloses a split spring back pressure atomizing nozzle type temperature reducer and pressure reducer. Although this type of temperature reducer and pressure reducer can effectively reduce the temperature and pressure of the pipeline and prevent the backflow of high-temperature and high-pressure steam, it is difficult to set the opening pressure value of the valve core of this type of temperature reducer and pressure reducer, which makes this type of temperature reducer and pressure reducer relatively inconvenient to use.

[0004] In summary, the utility model provides a split spring back pressure atomizing nozzle type temperature and pressure reducer to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a split spring back pressure atomizing nozzle type temperature and pressure reducing device to solve the problems in the prior art.

[0006] A split spring back pressure atomizing nozzle type temperature and pressure reducing device comprises a nozzle, a pressure relief chamber is provided on one side of the nozzle, a connecting column is provided on the side of the nozzle away from the pressure relief chamber, a limit sleeve is sleeved on the surface of the connecting column, a valve core is installed on the inner side of the pressure relief chamber, a valve stem is provided on one side of the valve core, one end of the valve stem passes through the nozzle, and the penetrated end is connected to the limit sleeve by a fixing pin, an adjusting plate is sleeved on the surface of the valve stem located inside the limit sleeve, a mounting groove is also provided inside the valve stem, a plurality of penetrating movable grooves are arranged in an array on the inner wall of the mounting groove, a threaded rod is installed inside the mounting groove, a movable ring is sleeved on the surface of the threaded rod, a plurality of connecting blocks are arranged in an array on the outer surface of the movable ring, a plurality of the connecting blocks are respectively inserted into the limit sleeve from the plurality of the movable grooves, and the inserted ends are fixedly connected to the inner surface of the adjusting plate, and a spring is sleeved on the surface of the valve stem between the adjusting plate and the connecting column.

[0007] Furthermore, two ends of the spring abut against opposite sides of the adjustment plate and the connecting column respectively.

[0008] Furthermore, the adjustment plate is threadedly connected to the threaded rod.

[0009] Furthermore, a groove is provided on a side of the valve core away from the valve stem, an adjusting knob is installed on the inner side of the groove, and the adjusting knob is transmission-connected to the threaded rod.

[0010] Furthermore, a plurality of pressure relief holes are arranged in an array around the connecting column on a side of the nozzle away from the pressure relief chamber, and one end of each of the pressure relief holes is communicated with the pressure relief chamber.

[0011] Furthermore, an external thread is provided on the outer wall of the nozzle.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model drives the threaded rod to rotate by rotating a knob located in a groove on the valve core, and the threaded rod drives the movable ring to move, thereby moving the adjusting plate. By changing the distance between the adjusting plate and the connecting column, the initial compression amount of the spring is changed. Since the spring pressure is proportional to the compression amount, the pressure value required for the high-pressure steam to push open the valve core can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the utility model from another angle;

[0016] Figure 3 It is a planar sectional schematic diagram of the utility model.

[0017] In the figure:

[0018] 1. Nozzle; 2. Pressure relief chamber; 3. Connecting column; 4. Limit sleeve; 5. Valve core; 6. Valve stem; 7. Adjusting plate; 8. Mounting groove; 9. Movable groove; 10. Threaded rod; 11. Movable ring; 12. Connecting block; 13. Spring; 14. Groove; 15. Adjusting knob; 16. Pressure relief hole; 17. External thread. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] like Figure 1-3As shown, the utility model provides a split spring 13 back pressure atomizing nozzle 1 type temperature and pressure reducing device, comprising a nozzle 1, a pressure relief chamber 2 is opened on one side of the nozzle 1, a connecting column 3 is arranged on the side of the nozzle 1 away from the pressure relief chamber 2, a limiting sleeve 4 is sleeved on the surface of the connecting column 3, a valve core 5 is installed on the inner side of the pressure relief chamber 2, a valve stem 6 is arranged on one side of the valve core 5, one end of the valve stem 6 passes through the nozzle 1, and the penetrated end is connected to the limiting sleeve 4 by a fixing pin, an adjusting plate 7 is sleeved on the surface of the valve stem 6 located in the limiting sleeve 4, and the position of the adjusting plate 7 on the surface of the valve stem 6 is variable, and the distance between the adjusting plate 7 and the nozzle 1 is changed, thereby changing the distance between the adjusting plate 7 and the connecting column 3. The initial compression degree of the spring 13 between the columns 3 is achieved, thereby achieving the effect of changing the opening pressure value of the valve core 5. A mounting groove 8 is also provided inside the valve stem 6, and a plurality of penetrating movable grooves 9 are arranged in an array on the inner wall of the mounting groove 8. A threaded rod 10 is installed inside the mounting groove 8, and a movable ring 11 is mounted on the surface of the threaded rod 10. A plurality of connecting blocks 12 are arranged in an array on the outer surface of the movable ring 11. The plurality of connecting blocks 12 are respectively inserted into the limit sleeve 4 from the plurality of movable grooves 9, and the inserted ends are fixedly connected to the inner surface of the adjusting plate 7. The adjusting plate 7 will move with the movement of the movable ring 11, and a spring 13 is mounted on the surface of the valve stem 6 between the adjusting plate 7 and the connecting column 3.

[0021] The two ends of the spring 13 are respectively against the opposite sides of the regulating plate 7 and the connecting column 3 , and the opening pressure of the valve core 5 is set by the spring 13 . When the pressure does not reach the set value, the valve core 5 is kept closed.

[0022] The adjusting plate 7 and the threaded rod 10 are threadedly connected, and the rotation of the threaded rod 10 drives the movable ring 11 to move, thereby changing the distance between the adjusting plate 7 and the nozzle 1 .

[0023] A groove 14 is formed on a side of the valve core 5 away from the valve stem 6 , an adjusting knob 15 is installed inside the groove 14 , and the adjusting knob 15 is transmission-connected to the threaded rod 10 , so that the threaded rod 10 can be rotated by the adjusting knob 15 .

[0024] Among them, a plurality of pressure relief holes 16 are arranged in an array around the connecting column 3 on the side of the nozzle 1 away from the pressure relief chamber 2, and one end of the pressure relief holes 16 is connected to the pressure relief chamber 2. The high-temperature steam inside the pipeline enters the pressure relief chamber 2 from each pressure relief hole 16, thereby pushing the valve core 5 open. After the valve core 5 is pushed open, a gap is generated between the valve core 5 and the inner wall of the pressure relief chamber 2, and high-pressure steam can be ejected from the inside of the gap between the valve core 5 and the pressure relief valve, thereby achieving the effect of cooling and reducing pressure.

[0025] Among them, an external thread 17 is arranged on the outer wall of the nozzle 1, and the external thread 17 on the outer wall of the nozzle 1 is used for installation and fixation of the utility model.

[0026] Specific working principle:

[0027] During the use of the utility model, the utility model is installed through the external thread 17 set on the outer side of the nozzle 1. When the utility model is cooling and reducing the pressure of the pipeline, when the pressure in the pipeline is greater than the force required for the spring 13 to deform, the high-pressure water vapor in the pipeline will enter the pressure relief chamber 2 through the various pressure relief holes 16 to push the valve core 5 open, and then the pressure can be discharged through the gap between the valve core 5 and the pressure relief chamber 2 to achieve the effect of cooling and reducing pressure. According to the needs of use, after the installation of the utility model is completed, the threaded rod 10 can be driven to rotate by turning the knob in the groove 14 on the valve core 5, and the threaded rod 10 drives the movable ring 11 to move, so that the adjusting plate 7 is moved, and the distance between the adjusting plate 7 and the connecting column 3 is changed, so that the initial compression amount of the spring 13 is changed. Since the pressure of the spring 13 is proportional to its compression amount, the pressure value required for the high-pressure steam to push the valve core 5 can be changed.

[0028] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A split spring back pressure atomizing nozzle type temperature and pressure reducer, characterized in that: The invention comprises a nozzle (1), a pressure relief chamber (2) is provided on one side of the nozzle (1), a connecting column (3) is provided on the side of the nozzle (1) away from the pressure relief chamber (2), a limiting sleeve (4) is sleeved on the surface of the connecting column (3), a valve core (5) is installed on the inner side of the pressure relief chamber (2), a valve stem (6) is provided on one side of the valve core (5), one end of the valve stem (6) passes through the nozzle (1), and the penetrated end is connected to the limiting sleeve (4) by a fixing pin, an adjusting plate (7) is sleeved on the surface of the valve stem (6) located inside the limiting sleeve (4), and a fixing plate (7) is also provided inside the valve stem (6). A mounting groove (8), wherein a plurality of movable grooves (9) are arranged in an array on the inner wall of the mounting groove (8), a threaded rod (10) is installed inside the mounting groove (8), a movable ring (11) is sleeved on the surface of the threaded rod (10), and a plurality of connecting blocks (12) are arranged in an array on the outer surface of the movable ring (11), and the plurality of connecting blocks (12) are respectively inserted into the limit sleeve (4) from the plurality of movable grooves (9), and the inserted ends are fixedly connected to the inner surface of the adjusting plate (7), and a spring (13) is sleeved on the surface of the valve stem (6) between the adjusting plate (7) and the connecting column (3).

2. The split spring back pressure atomizing nozzle type temperature and pressure reducing device as claimed in claim 1, characterized in that: The two ends of the spring (13) respectively abut against the opposite sides of the adjustment plate (7) and the connecting column (3).

3. The split spring (13) back pressure atomizing nozzle (1) type temperature and pressure reducer as claimed in claim 1, characterized in that: The adjustment plate (7) is threadedly connected to the threaded rod (10).

4. The split spring back pressure atomizing nozzle type temperature and pressure reducing device as claimed in claim 1, characterized in that: A groove (14) is provided on a side of the valve core (5) away from the valve stem (6), an adjusting knob (15) is installed inside the groove (14), and the adjusting knob (15) is transmission-connected to the threaded rod (10).

5. The split spring back pressure atomizing nozzle type temperature and pressure reducing device as claimed in claim 1, characterized in that: A plurality of pressure relief holes (16) are arranged in an array around the connecting column (3) on the side of the nozzle (1) away from the pressure relief chamber (2), and one end of each of the pressure relief holes (16) is in communication with the pressure relief chamber (2).

6. The split spring back pressure atomizing nozzle type temperature and pressure reducing device as claimed in claim 1, characterized in that: An external thread (17) is provided on the outer wall of the nozzle (1).

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