Automatic drainer

Abstract

The utility model relates to an automatic drainer, which comprises a valve casing and a valve body, the valve body is arranged above the valve casing, one end of the valve body is provided with an inlet, and the top of the valve body is provided with a control mechanism. According to the automatic drainer, the floating ball is suspended in the valve shell and movably connected to the top of the valve body through the centering shaft, one end of the top of the centering shaft is rotationally connected with the mounting frame through the support, and the other end of the top of the centering shaft is rotationally connected with the bottom end of the valve element base through the connecting rod, so that water and gas are fed into the valve shell through the inlet; when the water level rises, the floating ball floats upwards and drives the centering shaft to deflect, and the centering shaft drives the valve element seat to do vertical motion, so that the valve is opened, and water is conveniently discharged from the drainage port; when the water level rises, the floating ball floats upwards, so that the water cannot submerge the centering shaft, the influence of water impurities on the movement flexibility of the floating ball is avoided, and the influence of the impurities in the water on the control mechanism is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drainers, in particular to an automatic drainer. Background Art

[0002] A drainer, also known as a steam trap, is a valve used in steam pipe networks and equipment to automatically discharge condensate, air, and other non-condensable gases and prevent steam leakage. The working principle of the steam trap is based on the physical property differences between steam and condensate, mainly including density difference, temperature difference, and phase change.

[0003] In the existing float-type drainer structure, the float control mechanism inside it is immersed in water. Affected by the buoyancy of water, the float floats up, the drain valve opening is opened, and water is discharged from the drain port. At the same time, the float drops, and the drain valve opening is closed. During this process, impurities in the water will adhere to the float control system, gradually filling the gap between the float and the bracket, making the movement of the float stuck and insensitive, thus causing abnormal drainage and affecting the service life of the drainer. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an automatic drainer, which has the advantages of reducing the influence of dirt in water on the movement of the control mechanism and increasing the service life, and solves the problems of abnormal drainage caused by dirt in water adhering to the control system in the existing device and affecting the service life.

[0005] To achieve the above object, the utility model provides the following technical solution: an automatic drainer, comprising a valve housing and a valve body, the valve body is installed above the valve housing, one end of the valve body is provided with an inlet, and a control mechanism is arranged at the top of the valve body;

[0006] The control mechanism includes a valve core seat, a valve rod, and a centering shaft. A groove is formed at the top of the valve body and the valve core seat is installed. The valve rod is arranged inside the valve core seat, and an installation bracket is installed on the inner wall of the top of the inlet. A bracket is arranged at the bottom end of the installation bracket, and the installation bracket is rotationally connected to one end of the top of the centering shaft through the bracket. A float is installed at one end of the bottom of the centering shaft.

[0007] Two drain ports are opened at the bottom end of one end face of the valve housing, a drain port is opened at the side of the valve housing and an installation seat a is arranged, an installation seat b is also arranged at the side of the valve housing, and air passage pipes a are opened at both the side of the valve housing and one end of the top of the valve body. The other end of the air passage pipe a penetrates through the installation seat b.

[0008] Further, a connecting rod is installed at the other end of the top of the centering shaft, and one end of the top of the centering shaft is rotationally connected to the bottom end of the valve core seat through the connecting rod.

[0009] Further, an air return port is provided in the middle of the valve body. One end of the air path pipe a penetrates through the air return port via the valve core seat, and the air return port is connected to the gas storage tank through an installed air return pipe.

[0010] Further, the bottom end of the centering shaft is designed in an arc shape and is adapted to the spherical surface of the floating ball.

[0011] Further, it further includes a valve seat and a valve cover. The valve seat is installed and connected to the valve housing through the mounting seat a, the valve cover is installed and connected to the valve housing through the mounting seat b. A drain pipe is provided in the valve seat, and the drain pipe communicates with the water drain port. An air path pipe b is provided in the valve cover. The valve cover and the valve seat are installed and arranged to form an air cavity inside.

[0012] Further, an air hole is provided on the other side of the valve cover, and the other end of the air path pipe a penetrates through the air cavity inside the valve cover through this air hole.

[0013] Further, a button is provided in the valve cover in an open manner, a diaphragm is provided in the valve seat, and the diaphragm is connected to the bottom end of the button.

[0014] Further, a liquid level pipe is installed in a groove on the other end face of the valve housing, and the bottom of the groove is provided with an opening so that the liquid level pipe communicates with the inside of the valve housing.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. For this automatic drainer, by setting the floating ball to float in the valve housing, and the floating ball is movably connected to the top of the valve body through the centering shaft. One end of the top of the centering shaft is rotationally connected to the mounting frame through a bracket, and the other end of the top of the centering shaft is rotationally connected to the bottom end of the valve core seat through a connecting rod. When water and gas enter the valve housing through the inlet, the water level rises, the floating ball floats upward and drives the centering shaft to deflect. The centering shaft drives the valve core seat to move vertically, so that the valve opens, facilitating the discharge of water from the water drain port; since the water level rises, the floating ball will float upward, preventing the water from submerging the centering shaft, avoiding the influence of water quality impurities on the flexibility of the floating ball movement, and reducing the influence of impurities in the water on the control mechanism.

[0017] 2. For this automatic drainer, the device automatically controls the opening and closing of the valve and the drainage through the floating of the floating ball, achieving the energy-saving effect of the device. At the same time, the vertical movement of the valve core seat will reduce the wear of the movement of the valve core inside the valve core seat, improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the valve body assembly of the present utility model;

[0020] Figure 3 Schematic diagram of the valve housing assembly of the structure of the present utility model;

[0021] Figure 4 Overall sectional view schematic diagram of the structure of the present utility model;

[0022] In the figure: 1. Valve housing; 11. Drain port; 12. Liquid level pipe; 13. Drainage port; 14. Mounting seat a; 15. Mounting seat b; 16. Gas pipeline a;

[0023] 2. Valve body; 21. Inlet; 22. Spool seat; 23. Valve rod; 24. Mounting frame; 25. Bracket; 26. Centering shaft; 27. Float; 28. Connecting rod; 29. Return air port;

[0024] 3. Valve seat; 31. Drainage pipeline; 32. Diaphragm;

[0025] 4. Valve cover; 41. Gas pipeline b; 42. Button. Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment

[0028] Provided by Figures 1-4 An automatic drainer includes a valve housing 1 and a valve body 2. The valve body 2 is installed above the valve housing 1. One end of the valve body 2 is provided with an inlet 21, and a control mechanism is provided at the top of the valve body 2;

[0029] The control mechanism includes a spool seat 22, a valve rod 23 and a centering shaft 26. A groove is opened at the top of the valve body 2 and the spool seat 22 is installed. The valve rod 23 is arranged inside the spool seat 22. And an installation frame 24 is installed on the inner wall of the top of the inlet 21. The bottom end of the installation frame 24 is provided with a bracket 25. The installation frame 24 is rotatably connected to one end of the top of the centering shaft 26 through the bracket 25. A float 27 is installed at one end of the bottom of the centering shaft 26;

[0030] Two drain ports 11 are opened at the bottom end of one end face of the valve housing 1. A drainage port 13 is opened on the side of the valve housing 1 and a mounting seat a 14 is provided. A mounting seat b 15 is also provided on the side of the valve housing 1. Gas pipelines a 16 are opened on both the side of the valve housing 1 and one end of the top of the valve body 2. The other end of the gas pipeline a 16 penetrates through the mounting seat b 15.

[0031] In this embodiment, by setting the floating ball 27 to float in the valve housing 1, and the floating ball 27 is movably connected to the top of the valve body 2 through the centering shaft 26. One end of the top of the centering shaft 26 is rotatably connected to the mounting bracket 24 through the bracket 25, and the other end of the top of the centering shaft 26 is rotatably connected to the bottom end of the valve element seat 22 through the connecting rod 28. When water and gas enter the valve housing 1 through the inlet 21, the water level rises, the floating ball 27 floats upward and drives the centering shaft 26 to deflect. The centering shaft 26 drives the valve element seat 22 to move vertically, so that the valve opens, facilitating the water to be discharged from the drain port 13. Since the water level rises, the floating ball 27 will float upward, preventing the water from submerging the centering shaft 26, avoiding the influence of water quality impurities on the flexibility of the movement of the floating ball 27, and reducing the influence of impurities in the water on the control mechanism.

[0032] It can be understood that it further includes a valve seat 3 and a valve cover 4. The valve seat 3 is installed and connected to the valve housing 1 through the mounting seat a14, and the valve cover 4 is installed and connected to the valve housing 1 through the mounting seat b15. A drain pipeline 31 is provided in the valve seat 3, and the drain pipeline 31 communicates with the drain port 13. An air pipeline b41 is provided in the valve cover 4. The valve cover 4 and the valve seat 3 are installed and a gas chamber is formed inside. There is an air hole on the other side of the valve cover 4. The other end of the air pipeline a16 penetrates through the air hole into the gas chamber in the valve cover 4. There is a button 42 provided in the valve cover 4 in an open manner, and a diaphragm 32 is provided in the valve seat 3. The diaphragm 32 is connected to the bottom end of the button 42.

[0033] It should be noted that by providing a return air port 29 in the middle of the valve body 2, one end of the air pipeline a16 penetrates through the valve element seat 22 and the return air port 29. The return air port 29 is connected to the gas storage tank through the installation of a return air pipeline, so that the gas in the valve housing 1 is connected to the gas storage tank, avoiding the phenomenon of air sealing, because air sealing will prevent water from entering the valve seat 3. At the same time, the two drain ports 11 can be used for sewage discharge, or one for sewage discharge and the other for installing a temperature control plug.

[0034] Specifically, please refer to Figure 2 , in order to reduce the influence of impurities in the water on the control mechanism, at the other end of the top of the centering shaft 26 in this embodiment, a connecting rod 28 is installed. One end of the top of the centering shaft 26 is rotatably connected to the bottom end of the valve element seat 22 through the connecting rod 28. The bottom end of the centering shaft 26 is designed to be arc-shaped and is adapted to the spherical surface of the floating ball 27.

[0035] In this embodiment, by setting the other end of the top of the centering shaft 26 to be rotatably connected to the valve element seat 22 through the connecting rod 28, when the water level rises, the floating ball 27 floats upward, the centering shaft 26 deflects, the valve element seat 22 moves vertically, and the valve opens, thus realizing drainage. The floating of the floating ball 27 makes the water level unable to submerge the centering shaft 26, thus avoiding the influence of impurities in the water on the flexibility of the control mechanism, and reducing the influence of impurities on the control mechanism.

[0036] Specifically, please refer toFigure 3 To facilitate observing the water level inside the steam trap, a liquid level tube 12 is installed in a groove on the other end face of the valve housing 1 in this embodiment. An opening is made at the bottom of the groove so that the liquid level tube 12 communicates with the inside of the valve housing 1.

[0037] In this embodiment, by arranging the liquid level tube 12 to be installed in a groove on the other end face of the valve housing 1 and the opening in the groove being in communication with the liquid level tube 12, the water level situation inside the valve housing 1 can be observed through the liquid level tube 12.

[0038] The working principle of the above embodiment is as follows:

[0039] Step 1: Water and gas enter from the inlet 21. When the water level does not touch the float 27, the valve is not opened, and the diaphragm 32 is pressed by the gas in the air chamber formed between the valve seat 3 and the valve cover 4 (the gas above the diaphragm 32), so that water cannot be discharged from the drain pipe 31.

[0040] Step 2: When the water level touches the float 27, as the water level rises, the float 27 gradually floats upward, the centering shaft 26 deflects, the valve core seat 22 moves vertically, the valve opens, the gas above the diaphragm 32 is transmitted to the air return port 29 through the air path pipe a16, the gas in the air chamber cannot hold back the water pressure, so that the water pushes the diaphragm 32 up and is discharged from the drain pipe 31.

[0041] Special case: When the water level rises but the valve is not opened, manually press the button 42, so that the low-pressure gas above the diaphragm 32 is discharged from the air path pipe b41, enabling the water to push open the diaphragm 32 to achieve the purpose of draining water.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic drain, characterized in that: It comprises a valve housing (1) and a valve body (2), wherein the valve body (2) is installed above the valve housing (1), an inlet (21) is provided at one end of the valve body (2), and a control mechanism is provided at the top of the valve body (2); The control mechanism comprises a valve core seat (22), a valve stem (23) and a centering shaft (26); the top of the valve body (2) is grooved and the valve core seat (22) is installed; the valve stem (23) is arranged inside the valve core seat (22); a mounting frame (24) is installed on the inner wall of the top of the inlet (21); a bracket (25) is arranged at the bottom end of the mounting frame (24); the mounting frame (24) is rotatably connected to the top end of the centering shaft (26) through the bracket (25); and a floating ball (27) is installed at the bottom end of the centering shaft (26); The bottom end of one end surface of the valve housing (1) is provided with two discharge ports (11); the side of the valve housing (1) is provided with a drain port (13) and a mounting seat a (14); the side of the valve housing (1) is also provided with a mounting seat b (15); the side of the valve housing (1) and one end of the top of the valve body (2) are both provided with an air path pipe a (16); the other end of the air path pipe a (16) passes through the mounting seat b (15).

2. The automatic drain according to claim 1, characterized in that: A connecting rod (28) is installed at the other end of the top of the centering shaft (26), and one end of the top of the centering shaft (26) is rotatably connected to the bottom end of the valve core seat (22) through the connecting rod (28).

3. The automatic drain according to claim 1, characterized in that: A gas return port (29) is provided in the middle of the valve body (2), one end of the gas path pipe a (16) passes through the gas return port (29) through the valve core seat (22), and the gas return port (29) is connected to the gas storage tank by installing a gas return pipe.

4. The automatic drain according to claim 1, characterized in that: One end of the bottom of the centering shaft (26) is designed to be arc-shaped and is matched with the spherical surface of the floating ball (27).

5. The automatic drain according to claim 1, characterized in that: The valve seat (3) and the valve cover (4) are also included. The valve seat (3) is mounted and connected to the valve housing (1) via the mounting seat a (14). The valve cover (4) is mounted and connected to the valve housing (1) via the mounting seat b (15). A drainage pipeline (31) is provided in the valve seat (3), and the drainage pipeline (31) is connected to the drain port (13). An air path pipe b (41) is provided in the valve cover (4). The valve cover (4) and the valve seat (3) are mounted and arranged to form an air cavity therein.

6. The automatic drain according to claim 5, characterized in that: The other side of the valve cover (4) is provided with an air hole, and the other end of the air path pipe a (16) passes through the air hole to penetrate the air cavity in the valve cover (4).

7. The automatic drain according to claim 6, characterized in that: The valve cover (4) is provided with an opening having a button (42), the valve seat (3) is provided with a diaphragm (32), and the diaphragm (32) is connected to the bottom end of the button (42).

8. The automatic drain according to claim 1, characterized in that: The other end surface of the valve housing (1) is grooved to mount a liquid level tube (12), and a hole is opened at the bottom of the groove to allow the liquid level tube (12) to communicate with the interior of the valve housing (1).

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