A safety protection device for a waste heat boiler pcv valve pipeline

Abstract

This utility model discloses a safety protection device for a PVC valve pipeline in a waste heat boiler, comprising a boiler body and a PVC valve body disposed on the upper surface of the boiler body. Mounting plates are fixedly installed on both sides of the boiler body, and protective covers are provided on the mounting plates. Each protective cover includes a fixed protective seat fixed to the mounting plate and a movable protective seat that slides relative to the fixed protective seat. The mounting plate is equipped with a cylinder for driving the movable protective seat away from or towards the fixed protective seat. The fixed and movable protective seats, when combined, form a protective groove for accommodating the PVC valve body, with the top wall of the groove being arc-shaped. When the PVC valve body depresses, steam enters the protective groove, condenses into small water droplets upon contact with the arc surface, and then drips into a water-collecting ring. The water then flows out of the protective cover under the action of a water flow guide pipe. This reduces overall water accumulation inside the protective cover and improves the service life of the protection device.

Description

Technical Field

[0001] This application relates to the field of PCV valves, and in particular to a safety protection device for a PCV valve pipeline in a waste heat boiler. Background Technology

[0002] The PCV valve consists of an actuator, a pilot valve, and a main valve. When the boiler pressure reaches the set value, the actuator is powered on, and the pilot valve controls the opening and closing of the main valve, thereby releasing steam and reducing the pressure.

[0003] Patent application number "202221326681.7", entitled "A Boiler Safety Valve Protection Device", discloses a protective cover installed on the boiler body. The cover is moved by a lead screw, thus protecting the safety valve and preventing dust accumulation or insect entry, effectively ensuring the normal operation of the safety valve. However, during the venting process, a significant amount of steam is released. This steam condenses on the protective cover, and over time, water can easily accumulate on the cover, potentially damaging the lead screw that drives it. This reduces the lifespan of the protection device. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a safety protection device for the PCV valve pipeline of a waste heat boiler.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A safety protection device for a PVC valve pipeline in a waste heat boiler includes a boiler body and a PVC valve body disposed on the upper surface of the boiler body. Mounting plates are fixedly installed on both sides of the boiler body. A protective cover is provided on the mounting plate. The protective cover includes a fixed protective seat fixed to the mounting plate and a movable protective seat that slides relative to the fixed protective seat. The mounting plate is provided with a cylinder for driving the movable protective seat away from or towards the fixed protective seat. The fixed protective seat and the movable protective seat are combined to form a protective groove for accommodating the PVC valve body. The top wall of the protective groove is arc-shaped.

[0007] Preferably, the mounting plate is provided with a guide assembly, the guide assembly including a guide strip fixed to the mounting plate and a guide groove formed in the movable protective seat, the guide strip and the guide groove being slidably connected.

[0008] Preferably, the protective cover also has an air outlet, and the opening of the air outlet is inclined downward.

[0009] Preferably, a water-collecting ring is also provided in the protective groove, and the water-collecting ring is fixedly connected to the fixed protective seat, and the water-collecting ring is embedded in the movable protective seat.

[0010] Preferably, the movable protective seat has a receiving groove, the water-collecting ring is located in the receiving groove, and the lower edge of the top wall of the protective groove is located directly above the water-collecting ring.

[0011] Preferably, the bottom of the water-collecting ring is connected to a water flow guide pipe, and the other end of the water flow guide pipe extends to the outside of the fixed protective seat.

[0012] Preferably, a connecting component is further provided between the movable protective seat and the fixed protective seat. The connecting component includes a connecting protrusion fixed to the fixed protective seat and / or the movable protective seat, and a connecting groove formed in the fixed protective seat and / or the movable protective seat. One end of the connecting protrusion can enter the connecting groove.

[0013] Preferably, a sealing ring is provided between the fixed protective seat and the movable protective seat.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] 1. The cylinder pushes the movable protective seat to move outside the movable protective seat, so that there are no other mechanical structures inside the protective cover, reducing the impact of steam on the protective device.

[0016] 2. After the PVC valve body leaks air, the steam will enter the protective groove. Upon contact with the arc surface, the steam will condense into small water droplets, which will then drip into the water collection ring and flow out of the protective cover under the action of the water flow guide pipe. This reduces the overall water accumulation inside the protective cover and improves the service life of the protection device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 .

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Boiler body; 11. PVC valve body; 12. Mounting plate; 2. Protective cover; 21. Fixed protective seat; 22. Movable protective seat; 23. Protective groove; 24. Air outlet; 25. Water collection ring; 26. Receiving groove; 27. Water flow guide pipe; 28. Sealing ring; 3. Cylinder; 4. Guide assembly; 41. Guide strip; 42. Guide groove; 5. Connecting assembly; 51. Connecting protrusion; 52. Connecting groove. Detailed Implementation

[0021] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0022] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0023] This application discloses a safety protection device for a PCV valve pipeline in a waste heat boiler.

[0024] A safety protection device for a PVC valve pipeline in a waste heat boiler includes a boiler body 1 and a PVC valve body 11 disposed on the upper surface of the boiler body 1. Mounting plates 12 are fixedly installed on both sides of the boiler body 1. Protective covers 2 are provided on the mounting plates 12. The protective cover 2 includes a fixed protective seat 21 and a movable protective seat 22. The fixed protective seat 21 is fixed to the mounting plate 12, and the movable protective seat 22 slides relative to the fixed protective seat 21. A cylinder 3 is provided on the mounting plate 12. The cylinder 3 is used to push the movable protective seat 22 away from or towards the fixed protective seat 21, causing the movable protective seat 22 to separate or merge with the fixed protective seat 21. When the fixed protective seat 21 and the movable protective seat 22 are combined, a protective groove 23 is formed. The protective groove 23 can accommodate the PVC valve body 11 and is used to protect the PVC valve body 11.

[0025] Mounting plate 12 is provided with a guide assembly 4, which includes a guide strip 41 and a guide groove 42. The guide strip 41 is fixedly mounted on mounting plate 12, and the guide groove 42 is formed in movable protective seat 22. The guide strip 41 and the guide groove 42 are slidably connected. The presence of the guide groove 42 and the guide strip 41 can guide the movable protective seat 22, and the cylinder 3 and the guide assembly 4 can provide a stable direction of movement for the movable protective seat 22. A connecting assembly 5 is also provided between the movable protective seat 22 and the fixed protective seat 21. The connecting assembly 5 includes a connecting protrusion 51 fixed to the fixed protective seat 21 and / or the movable protective seat 22, and a connecting groove 52 formed in the fixed protective seat 21 and / or the movable protective seat 22. One end of the connecting protrusion 51 can enter the connecting groove 52. In this application, the fixed protective seat 21 and the movable protective seat 22...

[0026] A sealing ring 28 is provided between the fixed protective seat 21 and the movable protective seat 22. When the fixed protective seat 21 and the movable protective seat 22 are combined, the sealing seat can prevent steam from flowing out from the gap between the two.

[0027] The protective cover 2 also has an air outlet 24, which is angled downwards. Steam can escape through the air outlet 24 without allowing dust or other contaminants to enter.

[0028] The top wall of the protective groove 23 is curved. A water-collecting ring 25 is also installed inside the protective groove 23. Part of the water-collecting ring 25 is fixedly connected to the fixed protective base 21, and part of the water-collecting ring 25 is embedded in the movable protective base 22. The movable protective base 22 has a receiving groove 26, and the water-collecting ring 25 is located within the receiving groove 26. The lower edge of the top wall of the protective groove 23 is located directly above the water-collecting ring 25. A water flow guide pipe 27 is connected to the bottom of the water-collecting ring 25, and the other end of the water flow guide pipe 27 extends to the outside of the fixed protective base 21.

[0029] The implementation principle of this embodiment is as follows: After the PVC valve body 11 is depressurized, the steam will enter the protective groove 23. After the steam comes into contact with the arc surface, it will condense into small water droplets, which will then drip onto the water collection ring 25 and flow out of the protective cover 2 under the action of the water flow guide pipe 27. This reduces the overall water accumulation inside the protective cover 2.

[0030] Cylinder 3 pushes the movable protective seat 22 to move, so that there are no other mechanical structures inside the protective cover 2, reducing the impact of steam on the protective device.

[0031] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the above specific embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safety protection device for a PVC valve pipeline in a waste heat boiler, comprising a boiler body (1) and a PVC valve body (11) disposed on the upper surface of the boiler body (1), wherein mounting plates (12) are fixedly installed on both sides of the boiler body (1), characterized in that: The mounting plate (12) is provided with a protective cover (2). The protective cover (2) includes a fixed protective seat (21) fixed to the mounting plate (12) and a movable protective seat (22) that slides relative to the fixed protective seat (21). The mounting plate (12) is provided with a cylinder (3) for driving the movable protective seat (22) away from or closer to the fixed protective seat (21). The fixed protective seat (21) and the movable protective seat (22) are combined to form a protective groove (23) for accommodating the PVC valve body (11). The top wall of the protective groove (23) is an arc surface.

2. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 1, characterized in that: The mounting plate (12) is provided with a guide component (4), which includes a guide strip (41) fixed to the mounting plate (12) and a guide groove (42) opened in the movable protective seat (22). The guide strip (41) and the guide groove (42) are slidably connected.

3. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 1, characterized in that: The protective cover (2) is also provided with an air outlet (24), and the opening of the air outlet (24) is inclined downward.

4. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 1, characterized in that: A water-gathering ring (25) is also provided in the protective groove (23). The water-gathering ring (25) is partially fixedly connected to the fixed protective seat (21), and the water-gathering ring (25) is partially embedded in the movable protective seat (22).

5. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 4, characterized in that: The movable protective seat (22) has a receiving groove (26), the water-gathering ring (25) is located in the receiving groove (26), and the lower edge of the top wall of the protective groove (23) is located directly above the water-gathering ring (25).

6. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 5, characterized in that: The bottom of the water-collecting ring (25) is connected to a water flow guide pipe (27), and the other end of the water flow guide pipe (27) extends to the outside of the fixed protective seat (21).

7. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 1, characterized in that: A connecting component (5) is also provided between the movable protective seat (22) and the fixed protective seat (21). The connecting component (5) includes a connecting protrusion (51) fixed to the fixed protective seat (21) and / or the movable protective seat (22) and a connecting groove (52) opened in the fixed protective seat (21) and / or the movable protective seat (22). One end of the connecting protrusion (51) can enter the connecting groove (52).

8. The safety protection device for a waste heat boiler PCV valve pipeline as described in claim 1, characterized in that: A sealing ring (28) is provided between the fixed protective seat (21) and the movable protective seat (22).

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