Drain valve

Abstract

The utility model relates to the technical field related to valves, in particular to a drain valve which comprises a valve body, and a floating ball is arranged at the top in the valve body. A first opening and closing assembly is arranged below the floating ball, is in a normally-closed state and is opened during drainage; a second opening and closing assembly is arranged on one side of the first opening and closing assembly, is in a normally-open state and is closed during drainage. Two circulation paths of the first valve and the second valve are arranged, so that steam and water circulate separately, opening and closing are ingeniously achieved through the structures such as the floating ball support, the reed and the steel ball valve deck and do not affect each other, the sealing effect is improved, and compared with a traditional steam trap which only depends on a floating ball as a switch, the sealing effect is improved. And the sealing performance and the safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to steam valves, in particular to a steam trap. Background Art

[0002] A steam trap is an automatic valve primarily used in steam systems. Its primary function is to prevent steam from passing through while simultaneously draining condensate from the system. During steam transportation and use, condensate forms due to a drop in temperature. If this condensate is not promptly drained, it will accumulate in pipes or equipment, impacting steam transmission efficiency and the proper functioning of the equipment. A steam trap automatically identifies and drains condensate, ensuring efficient steam system operation. Existing steam traps commonly use a float as the control switch. While this design is simple and easy to manufacture, it suffers from limitations in sealing performance and safety, requiring further technical improvement and optimization. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a steam trap, comprising a valve body, wherein a float is provided at the top of the valve body;

[0004] An opening and closing component 1 is set below the float, which is in a normally closed state and opens when draining;

[0005] An opening and closing component 2 is provided on one side of the opening and closing component 1, which is in a normally open state and is closed when draining.

[0006] Preferably, the valve body is composed of a shell, a cover and a plurality of hexagonal bolts. The top of the shell is spherical, and an inlet and an outlet are respectively provided on the left and right sides thereof.

[0007] Preferably, a cover is installed at the bottom of the housing, and the cover is fixed to the housing by a plurality of hexagonal bolts.

[0008] Preferably: the opening and closing component 1 includes a steel ball valve cover, a reed, a reed bracket and a valve 1, a steel ball valve cover is provided on the top of the valve 1, and a sealing steel ball 1 is provided in the steel ball valve cover at the inlet of the valve 1.

[0009] Preferably: a reed is provided on the upper end of the steel ball valve cover, the reed is mounted on a reed bracket, the bottom of the reed bracket is fixed on the first valve, and the top of the reed is connected to the second opening and closing component.

[0010] Preferably: the second opening and closing component includes a float bracket, a hexagon socket head screw, a second valve and an axle pin, the bottom of the float bracket is installed on the second valve, and the float bracket consists of a base and an upper bracket.

[0011] Preferably: the base is fixed to the valve 2 by a hexagon socket head screw, the base is rotatably connected to the upper bracket by an axle pin, and a steel ball 2 is provided at the bottom of the upper bracket corresponding to the inlet of the valve 2. The top of the upper bracket is arc-shaped, which contacts the bottom of the float and is connected to the spring.

[0012] The technical effects and advantages of this utility model are:

[0013] The utility model provides two flow paths, valve 1 and valve 2, so that steam and water can circulate separately, and utilizes structures such as a float bracket, a reed, and a steel ball valve cover to cleverly achieve opening and closing without affecting each other, thereby improving the sealing effect. Compared with the traditional steam trap that only relies on a float as a switch, the sealing and safety are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a steam trap provided in an embodiment of the present application;

[0015] Figure 2 This is a front view of a steam trap provided by an embodiment of the present application;

[0016] Figure 3 is a side view of a steam trap provided in an embodiment of the present application;

[0017] Figure 4 This is a steam trap provided by the embodiment of the present application. Figure 2 Schematic diagram of the structure of the middle BB;

[0018] Figure 5 This is a steam trap provided by the embodiment of the present application. Figure 2 Schematic diagram of the structure of DD;

[0019] Figure 6 This is a steam trap provided by the embodiment of the present application. Figure 3 Schematic diagram of the structure of FF.

[0020] In the picture:

[0021] 1. Housing; 2. Cover; 3. Float bracket; 4. Float; 5. Hexagonal head bolt; 6. Ball valve cover; 7. Hexagon socket head screw; 8. Reed; 9. Reed bracket; 10. Valve 1; 11. Valve 2; 12. Axis pin. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications. Example

[0023] See also Figures 1 to 6 In this embodiment, a steam trap is provided, including a valve body, which is composed of a shell 1, a cover 2 and a plurality of hexagonal bolts 5. The top of the shell 1 is spherical, and an inlet and an outlet are provided on its left and right sides respectively to realize the circulation of water. The cover 2 is installed at the bottom of the shell 1, and the cover 2 is fixed to the shell 1 by a plurality of hexagonal bolts 5. In this article, four hexagonal bolts 5 are provided. After the two are fixed by the hexagonal bolts 5, they can be disassembled to realize the replacement and maintenance of the internal structure of the valve body, etc., which is easy to operate.

[0024] A float 4 is provided at the top of the valve body, and an opening and closing component 1 is provided below the float 4. The opening and closing component 1 is in a normally closed state and opens when draining water. An opening and closing component 2 is provided on one side of the opening and closing component 1, which is in a normally open state and is used to circulate steam. The two interact with each other to realize steam blocking and drainage of the steam trap.

[0025] Specifically, the opening and closing component 1 includes a steel ball valve cover 6, a reed 8, a reed bracket 9 and a valve 10. The top of the valve 10 is provided with a steel ball valve cover 6. A sealing steel ball 1 is provided in the steel ball valve cover 6 at the inlet of the valve 10. The upper end of the steel ball valve cover 6 is provided with a reed 8, which is mounted on the reed bracket 9. The bottom of the reed bracket 9 is fixed on the valve 10. The top of the reed 8 is connected to the opening and closing component 2.

[0026] In the opening and closing component 2, it includes a float bracket 3, a hexagon socket cylindrical head screw 7, a valve 2 11 and a shaft pin 12. The bottom of the float bracket 3 is installed at the valve 2 11. The float bracket 3 consists of a base and an upper bracket. The base is fixed to the valve 2 11 by the hexagon socket cylindrical head screw 7. Moreover, the base is rotatably connected to the upper bracket through the shaft pin 12. The bottom of the upper bracket corresponds to the inlet of the valve 2 11. A steel ball 2 is provided, which has the same function as the steel ball 1, and both have a sealing effect. The top of the upper bracket is arc-shaped, which contacts the bottom of the float 4 and is connected to the reed 8.

[0027] During operation, when there is less condensed water and its buoyancy is smaller, the gravity of the float 4 presses down, causing the upper bracket to tilt around the shaft pin 12, thereby separating the steel ball 2 from the valve 2 11, and it is in the open state. At this time, the reed 8 is pressed down, which exerts pressure on the steel ball valve cover 6, and then the steel ball 1 is sealed with the valve 1 10; on the contrary, when the buoyancy is larger, the float 4 rises, the reed 8 deforms and expands, and drives the steel ball valve cover 6 to move upward. At the same time, the upper bracket rotates, and its steel ball 2 seals the valve 2 11, the steel ball 1 is separated from the valve 1 10, and the valve 10 opens.

[0028] In the present invention, two flow paths, valve 10 and valve 2 11, are provided, so that steam and water can flow separately. Moreover, the structures such as the float bracket 3, the reed 8 and the ball valve cover 6 are cleverly used to realize opening and closing without affecting each other, thereby improving the sealing effect. Compared with the traditional steam trap that only relies on the float 4 as a switch, the sealing and safety are greatly improved.

[0029] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A steam trap, characterized in that: It includes a valve body, wherein a float (4) is provided at the top of the valve body; An opening and closing component 1 is provided below the float (4), and the opening and closing component 1 is in a normally closed state and is opened when draining water; An opening and closing component 2 is provided on one side of the opening and closing component 1, which is in a normally open state and is closed when draining water.

2. A steam trap according to claim 1, characterized in that: The valve body is composed of a shell (1), a cover (2) and a plurality of hexagonal bolts (5). The top of the shell (1) is spherical, and an inlet and an outlet are provided on its left and right sides respectively.

3. A steam trap according to claim 2, characterized in that: A cover (2) is installed at the bottom of the housing (1), and the cover (2) is fixedly mounted to the housing (1) via a plurality of hexagonal bolts (5).

4. The steam trap according to claim 1, characterized in that: The opening and closing component 1 comprises a steel ball valve cover (6), a reed (8), a reed bracket (9) and a valve 1 (10). The top of the valve 1 (10) is provided with a steel ball valve cover (6), and a sealing steel ball 1 is provided in the steel ball valve cover (6) at the inlet of the valve 1 (10).

5. The steam trap according to claim 4, characterized in that: A reed (8) is provided at the upper end of the ball valve cover (6), and the reed (8) is mounted on a reed bracket (9). The bottom of the reed bracket (9) is fixed on the valve 1 (10), and the top of the reed (8) is connected to the opening and closing component 2.

6. The steam trap according to claim 5, characterized in that: The second opening and closing component comprises a float bracket (3), a hexagon socket head screw (7), a second valve (11) and an axle pin (12). The bottom of the float bracket (3) is installed at the second valve (11). The float bracket (3) consists of a base and an upper bracket.

7. The steam trap according to claim 6, characterized in that: The base is fixed to the second valve (11) by a hexagon socket head screw (7), and the base is rotatably connected to the upper bracket by a shaft pin (12). The bottom of the upper bracket is provided with a second steel ball corresponding to the inlet of the second valve (11). The top of the upper bracket is arc-shaped, which contacts the bottom of the float (4) and is connected to the spring (8).

Images