Drain valve with throttling assembly

Abstract

The drain valve comprises a main body pipe, a valve seat is arranged at the top of the main body pipe, the bottom end of the main body pipe is connected with a water inlet pipe, the other end of the main body pipe is connected with a drain pipe, and the throttling assembly is arranged at the tail end of the drain pipe and comprises a first throttling block and a second throttling block which are connected with each other. Venturi-shaped throttling holes are formed in the first throttling block and the second throttling block, discharging holes communicated with the throttling holes are evenly formed in the tail end of the second throttling block in the circumferential direction, and adjusting blocks are movably inserted into the tail ends of the throttling holes. According to the device, the adjusting block, the sealing ring and the electric push rod are arranged, the adjusting block is moved back and forth by adjusting the length of the electric push rod, the area of the discharge hole covered by the adjusting block is adjusted, and the effect of remotely controlling the opening degree of the throttling hole is achieved; the displacement of the adjusting block is monitored in real time; and the electric push rod is fed back and controlled.

Description

Technical Field

[0001] This utility model relates to the field of steam trap technology, and in particular to a steam trap with a throttling component. Background Technology

[0002] Steam traps are indispensable key equipment in steam systems, their core function being the efficient discharge of condensate and prevention of steam leakage. This paper proposes an innovative design for a steam trap with a throttling component. By integrating an adjustable throttling device, the design significantly improves the adaptability and energy efficiency of the steam trap under different operating conditions, while also extending the equipment's lifespan. In existing technologies, the performance of steam traps directly affects energy utilization and system stability in steam systems. Traditional steam traps (such as mechanical and thermostatic traps) typically use throttling plates to achieve the throttling function. However, in practical applications, it is difficult to meet the condensate discharge requirements under different steam pressures by adjusting the opening of the throttling orifice, easily leading to excessive discharge, steam waste, and hindering practical application. Therefore, we propose a steam trap with a throttling component. Utility Model Content

[0003] To solve the above problems, this utility model provides a drain valve with a throttling component.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Design a drain valve with a throttling component, including a main tube with a valve seat at the top, an inlet pipe connected to the bottom end of the main tube, and a drain pipe connected to the other end. The drain pipe is provided with a throttling component, which includes a throttling block one and a throttling block two connected to each other. The throttling block one and the throttling block two have venturi-shaped throttling holes. The end of the throttling block two has a discharge hole that is uniformly opened around its circumference and communicates with the throttling hole. An adjusting block is movably inserted at the end of the throttling hole.

[0006] In the above scheme, a sedimentation chamber is connected to the bottom of the main tube, and a sealing cover is connected to the sedimentation chamber.

[0007] In the above scheme, the adjusting block is provided with a mounting groove, and a sealing ring that abuts against the inner wall of the throttling orifice is installed in the mounting groove.

[0008] In the above scheme, the second throttling block is provided with an electric push rod whose stroke end is connected to the adjusting block.

[0009] In the above scheme, the diameter of the first throttling block is larger than that of the second throttling block. A protective cover is threaded onto the first throttling block. A positioning plate that abuts against the protective cover is fixed to the head of the first throttling block. An opening that connects with the discharge hole is provided on the protective cover. A baffle is elastically connected to the inner wall of the opening. A flange is fixed on the drain pipe. A flange is fixed on the protective cover and connected to the flange.

[0010] In the above scheme, the protective cover is connected to a bracket for mounting an electric push rod, and the end of the adjusting block is equipped with a distance measuring sensor opposite to the bracket.

[0011] In the above scheme, the baffle is connected to the inner wall of the opening via a rotating shaft. A torsion spring is sleeved on the rotating shaft, with its two ends connected to the baffle and the inner wall of the opening respectively. A limit block is fixed near the flange two, and a limit block two is fixed to the inner wall of the opening, which abuts against the limit block one.

[0012] The advantages and beneficial effects of this utility model are as follows: By setting a throttling orifice and an adjusting block, and by setting the throttling orifice in a Venturi shape, the Venturi effect is utilized to achieve efficient gas-liquid separation, reduce steam carry-over loss, and simultaneously reduce system back pressure, thereby improving thermal energy utilization and achieving the effect of regulating drainage flow and pressure, thus optimizing fluid kinetic energy distribution. By setting an adjusting block, a sealing ring, and an electric push rod, the adjusting block is moved back and forth by adjusting the length of the electric push rod, thereby adjusting the area of ​​the discharge hole covered by the adjusting block. Compared with the prior art, the throttling orifice can be dynamically sealed to prevent leakage, achieving remote control of the throttling orifice. The effect of orifice opening is achieved by setting up protective covers and baffles. The protective covers protect throttling blocks one and two, and the baffles prevent external dust from entering the discharge hole while allowing water to flow freely. Flanges one and two facilitate the disassembly of the throttling components for maintenance and cleaning. The bracket and distance sensor monitor the displacement of the regulating block in real time and provide feedback to control the electric push rod, achieving intelligent closed-loop regulation. The torsion spring, limit block one, and limit block two enable automatic reset of the baffle opening angle and limit excessive rotation to extend component life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a drain valve with a throttling component proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the throttling component of a steam trap with a throttling assembly proposed in this utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Main pipe; 2. Valve seat; 3. Inlet pipe; 4. Drain pipe; 5. Sedimentation tank; 6. Sealing cover; 7. Flange 1; 8. Throttling assembly; 801 Throttling block 1; 802 Throttling block 2; 803 Throttling orifice; 804 Discharge hole; 805 Adjusting block; 806 Electric push rod; 807 Bracket; 808 Protective cover; 809 Positioning plate; 810 Opening; 811 Baffle; 812 Rotating shaft; 813 Limiting block 1; 814 Limiting block 2; 815 Torsion spring; 816 Distance sensor; 817 Mounting groove; 818 Sealing ring; 819 Flange 2. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] Please see Figure 1-3 The present invention provides a technical solution: a drain valve with a throttling component, including a main tube 1 with a valve seat 2 at the top, a valve core, a valve stem and a valve head inside the valve seat 2, the valve head being sealed to the inner wall of the main tube 1, an inlet pipe 3 being connected to the bottom end of the main tube 1 and a drain pipe 4 being connected to the other end, the main tube 1, the valve seat 2, the inlet pipe 3 and the drain pipe 4 being connected by welding;

[0020] Furthermore, a sedimentation chamber 5 is connected to the bottom of the main tube 1, and a sealing cover 6 is connected to the sedimentation chamber 5. The sedimentation chamber 5 is used to collect debris, and the sealing cover 6 is opened to empty the debris, so as to clean the inside of the main tube 1.

[0021] The drain pipe 4 is provided with a throttling component 8 at its end. The throttling component 8 includes a throttling block 1 801 and a throttling block 2 802 that are connected to each other. The throttling block 1 801 and the throttling block 2 802 are integrally formed. The throttling block 1 801 and the throttling block 2 802 are provided with a venturi-shaped throttling hole 803. The end of the throttling block 2 802 is provided with a discharge hole 804 that communicates with the throttling hole 803. An adjusting block 805 is movably inserted into the end of the throttling hole 803.

[0022] Specifically, by setting up a Venturi-shaped throttling orifice 803 and a regulating block 805, the Venturi effect is utilized to achieve efficient gas-liquid separation, reduce steam carry-over losses, and lower system back pressure, thereby achieving the effects of regulating drainage flow and pressure and optimizing fluid kinetic energy distribution.

[0023] Furthermore, the adjusting block 805 is provided with a mounting groove 817, and a sealing ring 818 is installed in the mounting groove 817 to abut against the inner wall of the throttling orifice 803;

[0024] Furthermore, the throttle block 802 is provided with an electric push rod 806 whose stroke end is connected to the adjusting block 805;

[0025] Specifically, by setting up an adjusting block 805, a sealing ring 818, and an electric push rod 806, the displacement of the adjusting block 805 is adjusted by the electric push rod 806, and the opening of the discharge hole 804 is dynamically adjusted, thereby achieving the effect of remotely controlling the opening of the throttling hole 803 and dynamically sealing to prevent leakage.

[0026] Furthermore, the diameter of throttling block 1 801 is larger than that of throttling block 2 802. A protective cover 808 is threadedly connected to throttling block 1 801. A positioning plate 809 that abuts against the protective cover 808 is fixed to the head of throttling block 1 801. The positioning plate 809 is used to position the protective cover 808 for easy and quick installation. An opening 810 that mates with the discharge hole 804 is provided on the protective cover 808. A baffle 811 is elastically connected to the inner wall of the opening 810. A flange 1 7 is fixed on the drain pipe 4. A flange 2 819 that connects to flange 1 7 is fixed on the protective cover 808.

[0027] Specifically, by setting up a protective cover 808 and a baffle 811, the protective cover 808 protects the first throttling block 801 and the second throttling block 802. With the opening and closing of the baffle 811, the effect of preventing external dust from entering the discharge hole 804 and allowing water to flow freely is achieved. By setting up a flange 7 and a flange 2 819, the effect of quick disassembly and assembly of the throttling assembly 8 and the protective cover 808 is achieved, which simplifies the maintenance process.

[0028] Furthermore, a bracket 807 for mounting an electric push rod 806 is connected to the protective cover 808, and a distance sensor 816 opposite to the bracket 807 is mounted on the end of the adjusting block 805.

[0029] Specifically, by setting up a bracket 807 and a distance sensor 816, the displacement of the adjusting block 805 is monitored in real time and the electric push rod 806 is controlled to achieve the effect of intelligent closed-loop adjustment of the opening of the throttle orifice 803.

[0030] Furthermore, the baffle 811 is connected to the inner wall of the opening 810 via a rotating shaft 812. A torsion spring 815 is fitted on the rotating shaft 812, with its two ends connected to the baffle 811 and the inner wall of the opening 810 respectively. A limit block 813 is fixed near the flange 819, and a limit block 814 is fixed to the inner wall of the opening 810, which abuts against the limit block 813. This allows the rotating shaft 812 to rotate only clockwise, causing the discharged condensate to flow away from the flange 819, thus preventing the flange 819 from being soaked in water for a long time and extending its service life.

[0031] Specifically, by setting torsion spring 815, limit block one 813 and limit block two 814, the rotation angle of baffle 811 is limited and automatically reset, thereby extending the service life of baffle 811 and avoiding damage from excessive rotation.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steam trap with a throttling component, comprising a main body pipe (1) with a valve seat (2) at the top, characterized in that, The main pipe (1) is connected to an inlet pipe (3) at the bottom and to a drain pipe (4) at the other end. The drain pipe (4) is provided with a throttling component (8) at the end. The throttling component (8) includes a throttling block one (801) and a throttling block two (802) connected to each other. The throttling block one (801) and the throttling block two (802) are provided with venturi-shaped throttling holes (803). The end of the throttling block two (802) is provided with a discharge hole (804) that communicates with the throttling hole (803) in a uniform circumferential direction. An adjusting block (805) is movably inserted at the end of the throttling hole (803).

2. A steam trap with a throttling component according to claim 1, characterized in that, The bottom of the main tube (1) is connected to a sedimentation chamber (5), and a sealing cap (6) is connected to the sedimentation chamber (5).

3. A steam trap with a throttling component according to claim 1, characterized in that, The adjusting block (805) is provided with a mounting groove (817), and a sealing ring (818) that abuts against the inner wall of the throttling hole (803) is installed in the mounting groove (817).

4. A steam trap with a throttling component according to claim 1, characterized in that, The throttling block 2 (802) is provided with an electric push rod (806) whose stroke end is connected to the adjusting block (805).

5. A steam trap with a throttling component according to claim 4, characterized in that, The diameter of the first throttling block (801) is larger than that of the second throttling block (802). A protective cover (808) is threaded onto the first throttling block (801). A positioning plate (809) that abuts against the protective cover (808) is fixed to the head of the first throttling block (801). An opening (810) that connects with the discharge hole (804) is provided on the protective cover (808). A baffle (811) is elastically connected to the inner wall of the opening (810). A flange (7) is fixed on the drain pipe (4). A flange (819) that connects to the flange (7) is fixed on the protective cover (808).

6. A steam trap with a throttling component according to claim 5, characterized in that, The protective cover (808) is connected to a bracket (807) for mounting an electric push rod (806), and a distance sensor (816) opposite to the bracket (807) is mounted at the end of the adjusting block (805).

7. A steam trap with a throttling component according to claim 5, characterized in that, The baffle (811) is connected to the inner wall of the opening (810) via a rotating shaft (812). A torsion spring (815) is sleeved on the rotating shaft (812) and its two ends are respectively connected to the baffle (811) and the inner wall of the opening (810). A limiting block (813) is fixed near the flange (819) of the rotating shaft (812). A limiting block (814) is fixed on the inner wall of the opening (810) and abuts against the limiting block (813).

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