Pressure regulating valve device

Abstract

The utility model is suitable for the technical field of household garbage incineration heating and ventilation, and provides a pressure regulating valve device which comprises a pressure regulating valve body, and an air inlet pipe and an air outlet pipe are arranged on the pressure regulating valve body and used for leading in and leading out steam discharged from a steam main pipe respectively. The two flange plates are used for being in butt joint with a pipeline and fixedly installed at the air inlet end of the air inlet pipe and the air outlet end of the air outlet pipe respectively; and the two sets of clamping plates are arranged on the flange plate and used for limiting the flange plate. According to the pressure regulating valve device provided by the scheme, the problem that the pressure fluctuation in the steam main pipe is large and is difficult to maintain in a stable range at present is solved.

Description

Technical Field

[0001] This utility model belongs to the field of heating, ventilation and air conditioning technology for municipal solid waste incineration, and particularly relates to a pressure regulating valve device. Background Technology

[0002] With the acceleration of urbanization and the improvement of residents' living standards, the improvement of the internal environmental conditions of municipal solid waste incineration power plants, as important environmental protection facilities, has received increasing attention. Lithium bromide central air conditioning units have been widely used in waste incineration power plants due to their advantages such as high efficiency, energy saving and environmental protection.

[0003] However, since the steam source used by lithium bromide units is mostly intermittent, the pressure of the steam header fluctuates greatly. Once the pressure exceeds the set value (such as 0.75 MPa), the safety valve will be triggered, which not only wastes steam energy but may also damage the lithium bromide unit and even cause a safety accident. Utility Model Content

[0004] This invention provides a pressure regulating valve device, which aims to solve the problem that the pressure fluctuation in the current steam header is large and it is difficult to maintain it within a stable range.

[0005] This utility model is implemented as follows: a pressure regulating valve device includes: a pressure regulating valve body, on which an inlet pipe and an outlet pipe are provided for introducing and discharging steam discharged from a steam header, respectively; two flanges for connecting pipes, the two flanges being fixedly installed at the inlet end of the inlet pipe and the outlet end of the outlet pipe, respectively; two sets of clamping plates, the two sets of clamping plates being disposed on the flanges for limiting the flanges; a fixing block, the fixing block being fixedly installed on the clamping plates, the fixing block having a separable positioning block disposed therein; and an adjusting mechanism for controlling the raising and lowering of the positioning block, the adjusting mechanism being disposed on the pressure regulating valve body.

[0006] Preferably, the adjusting mechanism includes: an assembly plate fixed to the body of the pressure regulating valve, on which a mounting bracket is fixedly mounted; a screw rotatably mounted on the assembly plate, on which a threaded sleeve is fitted, and the threaded sleeve is fixedly connected to the positioning block; a motor mounted on the mounting bracket, the output shaft of which is fixedly connected to the screw via a coupling; and a connecting plate fixed to the threaded sleeve, on which a guide rod for guiding is fixedly mounted, the guide rod passing through the mounting bracket.

[0007] Preferably, a limit block is fixedly installed at the top of the guide rod to prevent the guide rod from falling out, and an assembly frame for installing the motor is fixedly installed on the mounting frame, and the inner wall of the assembly frame is fixedly connected to the motor through a connecting block.

[0008] Preferably, the clamp is provided with an arc-shaped groove, which is adapted to the flange to be mated, and a rubber pad is provided on the inner wall of the arc-shaped groove.

[0009] Preferably, the mounting bracket has a sliding hole that is adapted to the guide rod, and a reinforcing rib is fixedly installed on the mounting bracket and fixedly connected to the assembly plate.

[0010] Preferably, a separable sealing ring is provided on the mating surface of the flange, and the sealing ring is made of rubber.

[0011] Preferably, the fixing block has a groove that is adapted to the positioning block.

[0012] Compared with related technologies, the pressure regulating valve device provided by this utility model has the following advantages:

[0013] The pressure regulating valve effectively stabilizes the pressure within the steam header, preventing safety valve activation due to excessive pressure fluctuations, reducing steam energy waste, and preventing potential damage to the lithium bromide unit. The design of components such as the inlet pipe, outlet pipe, flange, clamp, and fixing block enhances the system's mechanical strength and stability, ensuring the continuity and safety of steam transmission. The regulating mechanism design facilitates the lifting and lowering of the positioning block, while also enabling easy system disassembly and reassembly, reducing maintenance difficulty and labor costs. The arc-shaped groove on the clamp matches the flange and is equipped with a rubber gasket, further improving the sealing performance at system connections. Attached Figure Description

[0014] Figure 1 A front view schematic diagram of a pressure regulating valve device provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 This is an assembly drawing of the clamping plate and the fixing block in this utility model.

[0018] Reference numerals in the attached drawings: 1. Pressure regulating valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Flange; 5. Clamping plate; 6. Fixing block; 7. Positioning block; 8. Assembly plate; 9. Mounting bracket; 10. Screw; 11. Threaded sleeve; 12. Assembly bracket; 13. Motor; 14. Connecting plate; 15. Guide rod; 16. Limiting block. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a pressure regulating valve device, such as... Figure 1-4 As shown, the pressure regulating valve device includes: a pressure regulating valve body 1, on which an inlet pipe 2 and an outlet pipe 3 are provided, for introducing and discharging steam discharged from the steam header, respectively; two flanges 4 for connecting the pipes, the two flanges 4 being fixedly installed at the inlet end of the inlet pipe 2 and the outlet end of the outlet pipe 3, respectively; two sets of clamping plates 5, the two sets of clamping plates 5 being disposed on the flanges 4 for limiting the flanges 4; a fixing block 6, the fixing block 6 being fixedly installed on the clamping plates 5, the fixing block 6 having a separable positioning block 7 disposed inside; and an adjusting mechanism for regulating the raising and lowering of the positioning block 7, the adjusting mechanism being disposed on the pressure regulating valve body 1.

[0022] In this embodiment, the DN150 pressure regulating valve body 1 plays a crucial role. It automatically adjusts according to pressure changes in the steam header to ensure the pressure remains stable within the set range, preventing the safety valve from being triggered due to excessive pressure. By automatically regulating the steam header pressure, it ensures stable operation within the set range and avoids overpressure situations. Specifically, this is achieved by installing an automatic regulating valve at the steam inlet of the lithium bromide unit and constructing a DCS-based automated control system to monitor the steam header pressure in real time and automatically adjust the valve opening, thereby achieving precise control of the steam header pressure. The application of this device will significantly improve the safety and reliability of lithium bromide units, reduce steam energy waste and labor costs, and provide strong support for improving the internal environmental conditions of waste incineration power plants. The design of the inlet pipe 2 and outlet pipe 3 allows steam to smoothly enter and leave the pressure regulating valve body 1, ensuring the continuity and stability of steam flow. Two flanges 4 are fixedly installed at the inlet end of the inlet pipe 2 and the outlet end of the outlet pipe 3, respectively, to achieve a stable connection with the steam header, ensuring the sealing and safety during steam transmission. Two sets of clamping plates 5 are set on the flanges 4, which limit the pipe movement by clamping the flanges 4, enhancing the mechanical strength and stability of the entire system. The fixing block 6 is fixedly installed on the clamping plate 5, and the separable positioning block 7 inside it can be raised and lowered according to the instructions of the regulating mechanism, thereby adjusting the working state of the pressure regulating valve body 1.

[0023] In a further preferred embodiment of this utility model, the adjusting mechanism includes: an assembly plate 8 fixed on the pressure regulating valve body 1, and a mounting bracket 9 fixedly mounted on the assembly plate 8; a screw 10 rotatably mounted on the assembly plate 8, a threaded sleeve 11 sleeved on the screw 10, and the threaded sleeve 11 fixedly connected to the positioning block 7; a motor 13 mounted on the mounting bracket 9, the output shaft of the motor 13 being fixedly connected to the screw 10 via a coupling; and a connecting plate 14 fixed on the threaded sleeve 11, a guide rod 15 for guiding is fixedly mounted on the connecting plate 14, and the guide rod 15 passes through the mounting bracket 9.

[0024] In this embodiment, the detailed design of the adjustment mechanism allows for convenient control of the lifting and lowering of the positioning block 7, enabling the clamping of the fixing block 6 and the clamping plate 5, while also facilitating separation and disassembly, making it relatively labor-saving and convenient. Assembly plate 8: Serving as the supporting foundation of the entire adjustment mechanism, it is firmly fixed to the pressure regulating valve body 1, providing a solid platform for subsequent component installation; Mounting bracket 9: Installed on the assembly plate 8 by bolts or other fastening methods, providing a stable mounting position for the motor 13 and other auxiliary components, ensuring the compactness and stability of the entire adjustment mechanism; Screw 10: Installed on the assembly plate 8 via bearings or other rotating devices, enabling smooth rotation. Its rotational movement is key to driving the lifting and lowering of the threaded sleeve 11; the threaded sleeve 11 and the screw 10 are tightly fitted, achieving lifting and lowering movement through a threaded connection. Since it is fixedly connected to the positioning block 7, the lifting and lowering of the threaded sleeve directly drives the positioning block 7 to adjust its height; Motor 13: Serving as a power source, it achieves forward and reverse rotation through electrical control, thereby driving the screw 10 to rotate. The use of a motor makes the adjustment process more automated and convenient. Guide rod 15: penetrating the mounting bracket 9, guides and limits the lifting and lowering movement of the connecting plate 14 and the threaded sleeve 11. The guide rod design not only improves the accuracy of the adjustment but also prevents the threaded sleeve from deflecting and swaying during lifting, enhancing the stability of the adjustment mechanism. Through the automated control of motor 13, precise adjustment of the lifting and lowering of the positioning block 7 can be easily achieved. This design greatly simplifies the operation process and improves work efficiency. When it is necessary to press the fixing block 6 and the clamping plate 5, simply control motor 13 to rotate forward; when separation and disassembly are required, simply control motor 13 to rotate in reverse. The entire process is labor-saving and convenient.

[0025] In a further preferred embodiment of the present invention, a limiting block 16 is fixedly installed at the top end of the guide rod 15 to prevent the guide rod 15 from falling out. An assembly frame 12 for mounting the motor 13 is fixedly installed on the mounting frame 9. The inner wall of the assembly frame 12 is fixedly connected to the motor 13 through a connecting block.

[0026] In this embodiment, the addition of the limiting block 16 and the assembly frame 12 effectively controls the movement range of the guide rod 15, makes the installation of the motor 13 more stable, and makes the operation of the entire adjustment mechanism more stable and reliable.

[0027] In a further preferred embodiment of the present invention, an arc-shaped groove is provided on the clamping plate 5, the arc-shaped groove is adapted to the flange 4 to be connected, and a rubber pad is provided on the inner wall of the arc-shaped groove.

[0028] In this embodiment, the clamping plate 5 is provided with an arc-shaped groove. This design is compatible with the mating flange 4, ensuring that the flange can be evenly stressed when it is clamped, avoiding damage caused by stress concentration. The rubber gasket provided on the inner wall of the arc-shaped groove plays a key role in buffering and sealing.

[0029] In a further preferred embodiment of the present invention, the mounting bracket 9 is provided with a sliding hole, the sliding hole is adapted to the guide rod 15, and a reinforcing rib is fixedly installed on the mounting bracket 9, the reinforcing rib being fixedly connected to the assembly plate 8.

[0030] In this embodiment, the sliding hole on the mounting frame 9 is adapted to the guide rod 15, ensuring that the guide rod slides smoothly in the sliding hole, reducing friction and shaking during the movement, and ensuring the stability and accuracy of the adjustment mechanism. The reinforcing rib is fixedly installed on the mounting frame 9 and fixedly connected to the assembly plate 8. This design increases the overall strength and rigidity of the mounting frame 9.

[0031] In a further preferred embodiment of this utility model, a separable sealing ring is provided on the mating surface of the flange 4, and the sealing ring is made of rubber.

[0032] In this embodiment, a separable sealing ring, typically made of rubber, is provided on the mating surface of flange 4. Rubber sealing rings offer excellent elasticity and sealing performance, providing a reliable seal when flanges are mated, effectively preventing media leakage and ensuring airtightness at the connection. The separable design means the sealing ring can be replaced or maintained without damaging the flange, improving system maintainability and the durability of the sealing performance.

[0033] In a further preferred embodiment of the present invention, the fixing block 6 is provided with a groove, which is adapted to the positioning block 7.

[0034] In this embodiment, the groove on the fixing block 6 is adapted to the positioning block 7. This design can ensure the precise installation and positioning of the positioning block on the fixing block.

[0035] In summary, the pressure regulating valve body 1 effectively stabilizes the pressure within the steam header, preventing the safety valve from being triggered by excessive pressure fluctuations, reducing steam energy waste, and preventing potential damage to the lithium bromide unit. The design of components such as the inlet pipe 2, outlet pipe 3, flange 4, clamping plate 5, and fixing block 6 enhances the mechanical strength and stability of the system, ensuring the continuity and safety of steam transmission. The design of the regulating mechanism makes the lifting and lowering adjustment of the positioning block convenient, while also facilitating the separation and disassembly of the system, reducing maintenance difficulty and labor costs. The arc groove on the clamping plate 5 is compatible with the flange 4 and is equipped with a rubber gasket, further improving the sealing performance at the system connection.

[0036] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0037] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A pressure regulating valve device, characterized in that, include: The pressure regulating valve body is provided with an inlet pipe and an outlet pipe, which are used to introduce and export steam discharged from the steam header, respectively. Two flanges are used to connect the pipes, and the two flanges are respectively fixedly installed at the inlet end of the inlet pipe and the outlet end of the outlet pipe; Two sets of clamping plates are disposed on the flange for limiting the position of the flange. A fixing block is fixedly installed on the clamping plate, and a separable positioning block is provided inside the fixing block; An adjustment mechanism for controlling the raising and lowering of the positioning block is provided on the body of the pressure regulating valve.

2. The pressure regulating valve device as described in claim 1, characterized in that, The adjustment mechanism includes: An assembly plate is fixed to the body of the pressure regulating valve, and a mounting bracket is fixedly installed on the assembly plate; Rotate the screw mounted on the assembly plate. A threaded sleeve is fitted on the screw and is fixedly connected to the positioning block. The motor is mounted on the mounting bracket, and the output shaft of the motor is fixedly connected to the screw via a coupling. A connecting plate is fixed to the threaded sleeve, and a guide rod for guiding is fixedly installed on the connecting plate, the guide rod passing through the mounting bracket.

3. The pressure regulating valve device as described in claim 2, characterized in that, A limit block is fixedly installed at the top of the guide rod, and an assembly frame for installing the motor is fixedly installed on the mounting frame. The inner wall of the assembly frame is fixedly connected to the motor through a connecting block.

4. The pressure regulating valve device as described in claim 1, characterized in that, The clamp plate has an arc-shaped groove that is adapted to the flange to be connected, and a rubber pad is provided on the inner wall of the arc-shaped groove.

5. The pressure regulating valve device as described in claim 2, characterized in that, The mounting bracket has a sliding hole that is adapted to the guide rod. A reinforcing rib is fixedly installed on the mounting bracket and is fixedly connected to the assembly plate.

6. The pressure regulating valve device as described in claim 1, characterized in that, The flange has a separable sealing ring on its mating surface, and the sealing ring is made of rubber.

7. The pressure regulating valve device as described in claim 1, characterized in that, The fixing block has a groove that is adapted to the positioning block.

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