Automatic pressure reducing device for ammonia gas
The design of the two-piece valve seat structure and pressure monitoring mechanism solves the clogging problem of the automatic ammonia depressurization device, enabling convenient disassembly and pressure monitoring, and ensuring stable operation of the device.
Patent Information
- Application Number
- CN202520724759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing automatic ammonia depressurization devices are easily clogged by impurities, oil, or condensates, leading to reduced or stopped gas flow, and the valve core assembly is inconvenient to disassemble and clean.
It adopts a two-piece valve seat structure design with upper and lower assembly. The valve core assembly is assembled by thread and combined with a pressure monitoring mechanism for easy disassembly and assembly. It is also equipped with a pressure monitoring instrument to monitor the ammonia pressure.
It enables convenient disassembly and cleaning of the valve core assembly, ensuring normal operation of the device, and allows for real-time monitoring of ammonia pressure to prevent blockage.
Smart Images
Figure CN223806664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ammonia depressurization components, specifically an automatic ammonia depressurization device. Background Technology
[0002] Automatic ammonia pressure reducing device usually refers to ammonia pressure reducing valve. Its working principle is to use components such as diaphragms and springs to balance the inlet and outlet pressures. By changing the throttling area, the flow velocity and kinetic energy of the fluid are changed, resulting in different pressure losses, thereby reducing the inlet pressure to the required outlet pressure and keeping the outlet pressure stable.
[0003] The existing automatic ammonia pressure reducing devices still have the following problems when in use: In actual use, the pressure reducing device may be blocked by impurities, oil stains or condensates in the ammonia, resulting in a reduction or even stop of gas flow, affecting the normal supply of ammonia. At present, the pressure reducing valve body of the automatic ammonia pressure reducing device usually adopts an integrated valve seat structure design, which is inconvenient when disassembling, cleaning and replacing the internal valve core components. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an automatic ammonia depressurization device, which solves the problems mentioned in the background technology.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic ammonia depressurization device, comprising a depressurization mechanism, pressure monitoring mechanisms at both ends of the depressurization mechanism, the depressurization mechanism including a first valve seat, a second valve seat threadedly mounted on the top of the first valve seat, an inlet groove at one end of the first valve seat, an outlet groove at the other end of the first valve seat, an assembly groove at the top of the first valve seat, a valve core cavity at the center of the bottom wall of the assembly groove, and a threaded groove at the center of the top wall of the inner cavity of the second valve seat, wherein a valve core assembly is assembled in the assembly groove, the valve core cavity, the inner cavity of the second valve seat, and the threaded groove.
[0008] As a further embodiment of this utility model: the pressure monitoring mechanism includes an air guide pipe fixedly connected to the opening of the air inlet slot and the air outlet slot, an assembly hole is opened at the top of the air guide pipe, and an assembly is fixedly connected at the top of the air guide pipe and at the opening of the assembly hole, and a pressure monitoring instrument is installed on the internal thread of the assembly.
[0009] As a further scheme of the utility model: the first pressure reduction cavity is arranged between the upper portion of one end of the valve core cavity and the air inlet groove, the second pressure reduction cavity is arranged between the lower portion of the other end of the valve core cavity and the air outlet groove, and one connecting flange is fixedly connected to the interface of the apart end of each of the two air guide pipes.
[0010] As a further scheme of the utility model: the valve core assembly comprises a diaphragm slidingly connected in the assembly groove, a core body is fixedly connected to the central position of the bottom end of the diaphragm, the core body is slidingly connected in the valve core cavity, the valve core assembly further comprises an assembly seat slidingly connected in the inner cavity of the second valve seat, a spring is fixedly connected between the bottom end of the assembly seat and the diaphragm, an adjusting screw is fixedly connected to the central position of the top end of the assembly seat, the adjusting screw is threadedly connected in the threaded groove, a locking nut is threadedly connected above the adjusting screw, and the locking nut is located on the upper end of the second valve seat.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1、in the utility model, through adopting two-piece valve seat structure design of upper and lower assembly, the valve core assembly is assembled between the two valve seats, the two valve seats adopt threaded assembly structure design, convenient disassembly and assembly can be realized, and then convenient disassembly, cleaning and replacement of the valve core assembly in it can be realized.
[0013] 2、in the utility model, the pressure monitoring mechanism is arranged at the two ends of the pressure reduction mechanism, that is, the air inlet groove and the air outlet groove are arranged at the two ends of the first valve seat, one air guide pipe is fixedly connected to the opening of the air inlet groove and the air outlet groove, an assembly hole is formed in the top end of the air guide pipe, an assembly sleeve is fixedly connected to the opening of the assembly hole, and a pressure monitoring instrument is screw-mounted in the assembly sleeve, the ammonia gas pressure of the air inlet end and the air outlet end of the pressure reduction mechanism can be monitored, and whether the pressure reduction mechanism works normally can be judged. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;
[0015] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;
[0016] Figure 3 It is the sectional view of the pressure reduction mechanism of the utility model;
[0017] Figure 4 It is the three-dimensional view of the pressure monitoring mechanism of the utility model.
[0018] In the figure: 1, pressure reducing mechanism; 2, pressure monitoring mechanism; 11, first valve seat; 12, air inlet groove; 13, first pressure reducing cavity; 14, valve core cavity; 15, second pressure reducing cavity; 16, air outlet groove; 17, assembly groove; 18, second valve seat; 19, core body; 110, diaphragm; 111, adjusting screw; 112, locking nut; 113, assembly seat; 114, spring; 21, air guide pipe; 22, assembly hole; 23, connecting flange; 24, assembly sleeve; 25, pressure monitoring instrument. DETAILED DESCRIPTION
[0019] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0020] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0022] Please refer to Figures 1-4The utility model discloses an automatic ammonia pressure reducing device, including pressure reducing mechanism 1, the both ends of pressure reducing mechanism 1 are provided with pressure monitoring mechanism 2, pressure reducing mechanism 1 includes a first valve seat 11, the top of first valve seat 11 is equipped with the second valve seat 18 of screw thread, and the one end of first valve seat 11 is equipped with the air inlet groove 12, and the other end of first valve seat 11 is equipped with the air outlet groove 16, and the top of first valve seat 11 is equipped with the assembly groove 17, and the bottom wall center position of assembly groove 17 is equipped with valve core cavity 14, and the inner top wall center position of the inner chamber of second valve seat 18 is equipped with the thread groove, and the valve core assembly is assembled in assembly groove 17, valve core cavity 14, the inner chamber of second valve seat 18 and the thread groove, and the whole adopts the two-piece valve seat structure design of upper and lower assembly, and its valve core assembly is assembled between two valve seats, and the two valve seats adopt the screw thread type assembly structure design, can be conveniently disassembled, and then the convenient disassembly cleaning replacement of its inner valve core assembly can be realized.
[0023] Pressure monitoring mechanism 2 includes the air guide pipe 21 fixedly connected at the opening of air inlet groove 12 and air outlet groove 16, and the top of air guide pipe 21 is equipped with assembly hole 22, and the top of air guide pipe 21 and located at the opening of assembly hole 22 are fixedly connected with assembly sleeve 24, and pressure monitoring instrument 25 is screwed in assembly sleeve 24, and the both ends of pressure reducing mechanism 1 are provided with pressure monitoring mechanism 2, that is, the both ends of its first valve seat 11 are provided with air inlet groove 12 and air outlet groove 16 respectively, one air guide pipe 21 is fixedly connected at the opening of air inlet groove 12 and air outlet groove 16 respectively, the top of air guide pipe 21 is equipped with assembly hole 22, and assembly sleeve 24 is fixedly connected at the opening of assembly hole 22, and pressure monitoring instrument 25 is screwed in assembly sleeve 24, and the ammonia pressure of the air inlet end and the air outlet end of pressure reducing mechanism 1 can be monitored to determine whether the pressure reducing mechanism 1 works normally.
[0024] The first pressure reducing chamber 13 is arranged between the upper side of one end of valve core cavity 14 and air inlet groove 12, the second pressure reducing chamber 15 is arranged between the lower side of the other end of valve core cavity 14 and air outlet groove 16, one connecting flange 23 is fixedly connected at the interface of the apart end of two air guide pipes 21, and the whole automatic ammonia pressure reducing device can be connected with ammonia transmission pipeline through two connecting flanges 23.
[0025] The valve core assembly comprises a diaphragm 110 slidably connected in the assembly groove 17, the diaphragm 110 is fixedly connected with a core body 19 at the bottom center position, the core body 19 is slidably connected in the valve core cavity 14, the valve core assembly further comprises an assembly seat 113 slidably connected in the inner cavity of the second valve seat 18, the assembly seat 113 is fixedly connected with a spring 114 between the bottom end and the diaphragm 110, the assembly seat 113 is fixedly connected with an adjusting screw 111 at the top center position, the adjusting screw 111 is threadedly connected in the threaded groove, the adjusting screw 111 is threadedly connected with a locking nut 112 above, the locking nut 112 is located at the upper end of the second valve seat 18, the adjusting screw 111 in the threaded groove can be screwed to control the extension amount of the adjusting screw 111 into the inner cavity of the second valve seat 18, and then the spring 114 is pressed to increase the pressing force on the diaphragm 110.
[0026] The working principle of the utility model is: the integral ammonia automatic pressure reducing device can be connected with the ammonia transmission pipeline through the flanges 23 on both sides, the pressure monitoring mechanism 2 is arranged at both ends of the pressure reducing mechanism 1, that is, the first valve seat 11 is respectively provided with the gas inlet groove 12 and the gas outlet groove 16 at both ends, one gas guide pipe 21 is fixedly connected at the opening of the gas inlet groove 12 and the gas outlet groove 16, the assembly hole 22 is formed at the top end of the gas guide pipe 21, the assembly sleeve 24 is fixedly connected at the opening of the assembly hole 22, the pressure monitoring instrument 25 is screw-mounted in the assembly sleeve 24, the ammonia pressure at the gas inlet end and the gas outlet end of the pressure reducing mechanism 1 can be monitored to determine whether the pressure reducing mechanism 1 works normally, the ammonia passes through the valve core cavity 14, the pressure acts on the lower cavity of the diaphragm 110, when the outlet pressure exceeds the set value, the diaphragm 110 moves upwards under the action of the pressure, the spring 114 is compressed, the valve core body 19 moves upwards, the opening degree of the valve port is reduced, the throttling effect is enhanced, the outlet pressure is reduced, and the pressure reducing and stabilizing function is realized until the set value is reached.
[0027] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. An ammonia pressure automatic reducing device, comprising a pressure reducing mechanism (1); characterized in that The pressure reducing mechanism (1) is provided with a pressure monitoring mechanism (2) at both ends, the pressure reducing mechanism (1) comprises a first valve seat (11), a second valve seat (18) is threadedly mounted at the top end of the first valve seat (11), an air inlet groove (12) is formed at one end of the first valve seat (11), and an air outlet groove (16) is formed at the other end of the first valve seat (11); A mounting groove (17) is formed at the top end of the first valve seat (11), a valve core cavity (14) is formed at the center position of the inner bottom wall of the mounting groove (17), a threaded groove is formed at the center position of the inner top wall of the inner cavity of the second valve seat (18), and a valve core assembly is mounted in the mounting groove (17), the valve core cavity (14), the inner cavity of the second valve seat (18) and the threaded groove; The pressure monitoring mechanism (2) comprises a gas guide pipe (21) fixedly connected to the openings of the air inlet groove (12) and the air outlet groove (16), the gas guide pipe (21) is provided with a mounting hole (22) at the top end, and a mounting sleeve (24) is fixedly connected to the top end of the gas guide pipe (21) and located at the opening of the mounting hole (22); the mounting sleeve (24) is provided with a pressure monitoring instrument (25) screwed therein.
2. The automatic ammonia pressure reducing device according to claim 1, characterized in that: Two connection flanges (23) are fixedly connected to the interfaces of the two gas guide pipes (21) away from each other.
3. The automatic ammonia pressure reducing device according to claim 1, characterized in that: A first pressure reducing cavity (13) is formed between the upper end of the valve core cavity (14) and the air inlet groove (12).
4. The automatic ammonia pressure reducing device according to claim 1, characterized in that: A second pressure reducing cavity (15) is formed between the lower end of the valve core cavity (14) and the air outlet groove (16).
5. The automatic ammonia pressure reducing device according to claim 1, characterized in that: The valve core assembly comprises a diaphragm (110) slidably connected to the mounting groove (17), a core body (19) fixedly connected to the center position of the bottom end of the diaphragm (110), and the core body (19) is slidably connected to the valve core cavity (14).
6. The automatic ammonia pressure reducing device according to claim 1, characterized in that: The valve core assembly further comprises a mounting seat (113) slidably connected to the inner cavity of the second valve seat (18), and a spring (114) fixedly connected between the bottom end of the mounting seat (113) and the diaphragm (110).
7. The automatic ammonia pressure reducing device according to claim 6, characterized in that: An adjusting screw (111) is fixedly connected to the center position of the top end of the mounting seat (113), the adjusting screw (111) is threadedly connected to the threaded groove, a locking nut (112) is threadedly connected to the upper side of the adjusting screw (111), and the locking nut (112) is located at the upper end of the second valve seat (18).