CN220688742U - Free floating ball type steam drain valve - Google Patents

Abstract

The utility model relates to the technical field of drain valves and discloses a free floating ball type steam drain valve which comprises a valve body and a water outlet channel, wherein a rotating shaft seat is fixedly arranged at the lower end of the inner wall of the valve body, a floating ball is arranged in an inner cavity of the valve body, a first connecting rod is fixedly connected to the outer surface of the floating ball, the right end of the first connecting rod is rotatably connected to the rotating shaft seat, a second connecting rod is fixedly connected to the bottom of the right end of the first connecting rod, a sealing plug is fixedly connected to the lower end of the second connecting rod, a valve seat is fixedly connected to the lower end of the valve body, a valve port is arranged at the left end of the valve seat, the valve port is positioned below the rotating shaft seat, and the sealing plug is matched with the valve port in size. The utility model can improve the tightness of the drain valve and avoid damage to the connecting end of the drain valve caused by expansion with heat and contraction with cold.

Description

Free floating ball type steam drain valve

Technical Field

The utility model relates to the technical field of drain valves, in particular to a free floating ball type steam drain valve.

Background

The free floating ball type drain valve has simple structure, the stainless steel hollow floating ball with a movable part finely ground inside is not only a float but also an opening and closing part, no vulnerable part exists, the service life is long, the Y-series automatic air discharging device is arranged inside the drain valve, and the free floating ball type drain valve is very sensitive and is used for the work of discharging condensed water in a steam heater.

The existing drain valve comprises a valve body, a valve cover, a filter screen, a floating ball and a valve seat, wherein the valve cover is arranged on the valve body, the floating ball is arranged in the valve body, and the valve seat is obliquely arranged on the valve body and is used for being matched with the floating ball to form sealing. Because the valve seat is obliquely installed, the sealing port of the valve seat is also in an oblique state, because each part has certain machining errors in the production and machining processes, and the assembly errors generated by the installation of the valve seat are extremely easy to cause certain deviation of the inclination angle of the sealing port of the valve seat, when the deviation value is large, the sealing port of the valve seat can not be tightly attached to the floating ball to realize sealing, and finally the sealing performance of the valve is influenced.

For this purpose we propose a free floating ball steam trap.

Disclosure of Invention

The utility model mainly solves the technical problems existing in the prior art and provides a free floating ball type steam trap.

In order to achieve the above purpose, the utility model adopts the following technical scheme that the free floating ball type steam trap comprises a valve body and a water outlet channel, wherein a rotating shaft seat is fixedly arranged at the lower end of the inner wall of the valve body, a floating ball is arranged in an inner cavity of the valve body, a first connecting rod is fixedly connected to the outer surface of the floating ball, the right end of the first connecting rod is rotationally connected to the rotating shaft seat, a second connecting rod is fixedly connected to the bottom of the right end of the first connecting rod, a sealing plug is fixedly connected to the lower end of the second connecting rod, a valve seat is fixedly connected to the lower end of the valve body, a valve port is arranged at the left end of the valve seat, the valve port is positioned below the rotating shaft seat, and the sealing plug is matched with the valve port in size.

Further, the upper end left side wall intercommunication of valve body is provided with the inlet tube, and the upper end right side wall intercommunication of valve body is provided with the drain pipe, and ring spring groove has been seted up respectively to the left surface of inlet tube and the right side of drain pipe, evenly distributed fixedly connected with buffer spring respectively in two spring grooves, and the lateral surface of inlet tube and drain pipe is fixed mounting respectively has sealed ring.

Further, the top of valve body fixed mounting has the valve gap, and the top fixedly connected with discharge valve of valve gap.

Further, the inner chamber upper end of valve body is provided with the filter screen, and the bottom of filter screen is provided with the ball cover, and ball cover fixed connection is on the inner wall of valve body.

Further, the upper end of the water outlet channel is communicated with the drain pipe, and the lower end of the water outlet channel is communicated with the valve seat.

Further, the inner walls of the water inlet pipe and the water outlet pipe are respectively provided with a thread groove, the water inlet pipe and the water outlet pipe are respectively in threaded connection with hollow threaded rods, and one side surfaces of the two hollow threaded rods are respectively fixedly connected with flanges.

Further, a drain hole is formed in the bottom of the valve body.

Advantageous effects

The utility model provides a free floating ball type steam trap. The beneficial effects are as follows:

1. this free floater formula steam trap, through the floater that sets up, the head rod, the pivot seat, the second connecting rod, mutually support between the sealing plug, when this free floater formula steam trap begins the work, along with the cavity internal condensate water of valve body increases gradually, the floater can upwards float along with the increase of condensate water, thereby along with the float of floater drive the head rod upwards rotate, thereby the sealing plug that the head rod was connected on the second connecting rod upwards moves and opens the valve port, thereby the condensate water discharges, in drainage process, the liquid level descends gradually, make the floater descend along with the decline of liquid level, make sealing plug and valve port close each other gradually along with the decline of floater, so can make the leakproofness better.

2. This free floater formula steam trap, through the cooperation between the spring groove that sets up, buffer spring etc. components, set up the spring groove between the inside and outside wall of inlet tube and drain pipe, evenly distributed fixed mounting has buffer spring in the spring groove, can make inlet tube and drain pipe produce the effect of expend with heat and contract with cold because the change of weather temperature, can prevent through the setting of spring groove and buffer spring that inlet tube, drain pipe from producing the damage because of expend with heat and contract with cold to increase the life of this free floater formula steam trap.

3. This free floater formula steam trap, through seting up the screw thread groove at the inner wall of inlet tube and drain pipe, the hollow threaded rod of link one side fixed connection and screw thread groove looks adaptation at the flange, with hollow threaded rod with screw thread groove alignment screw in when being connected, embolia sealing material in junction, for traditional trap, this trap link can be according to different service environment and the specification of user demand nimble adjustment flange to this trap's flexibility of use has been improved.

Drawings

The structures, proportions, sizes, etc. shown in this description are for illustration purposes only and are not intended to limit the scope of the utility model, which is otherwise, used by those skilled in the art to which this utility model pertains.

FIG. 1 is a schematic diagram of the overall structure;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

fig. 4 is a schematic cross-sectional structure of a flange and its connection assembly.

Legend description:

1. a valve body; 2. a valve cover; 3. a filter screen; 4. a ball cover; 5. a floating ball; 6. an exhaust valve; 7. a water inlet pipe; 8. a drain pipe; 9. a blow-down hole; 10. a valve seat; 11. a water outlet channel; 12. a first connecting rod; 13. a rotating shaft seat; 14. a second connecting rod; 15. a sealing plug; 16. a valve port; 17. a spring groove; 18. a buffer spring; 19. a flange; 20. a hollow threaded rod; 21. and sealing the circular ring.

Detailed Description

1-4, including valve body 1, water outlet channel 11, the inner wall lower extreme fixedly mounted of valve body 1 has pivot seat 13, the inner chamber of valve body 1 is provided with floater 5, the surface fixedly connected with head rod 12 of floater 5, the right-hand member of head rod 12 rotates to be connected on pivot seat 13, the right-hand member bottom fixedly connected with second connecting rod 14 of head rod 12, the lower extreme fixedly connected with sealing plug 15 of second connecting rod 14, the lower extreme fixedly connected with disk seat 10 of valve body 1, valve port 16 has been seted up to the left end of disk seat 10, valve port 16 is located the below of pivot seat 13, sealing plug 15 and the size looks adaptation of valve port 16, through the cooperation between floater 5 that sets up, head rod 12, pivot seat 13, second connecting rod 14, sealing plug 15, when this free floater 5 formula steam trap begins to work, as the condensed water in the cavity of the valve body 1 is gradually increased, the floating ball 5 floats upwards along with the increase of the condensed water to drive the first connecting rod 12 to rotate upwards, the first connecting rod 12 drives the sealing plug 15 connected with the second connecting rod 14 to move upwards to open the valve port 16, so that the condensed water is discharged, in the drainage process, the liquid level gradually descends, the floating ball 5 descends along with the descending of the liquid level, the sealing plug 15 and the valve port 16 gradually close each other along with the descending of the floating ball 5, so that the tightness is better, the left side wall at the upper end of the valve body 1 is communicated with the water inlet pipe 7, the right side wall at the upper end of the valve body 1 is communicated with the water outlet pipe 8, the left side surface of the water inlet pipe 7 and the right side surface of the water outlet pipe 8 are respectively provided with circular spring grooves 17, buffer springs 18 are respectively and evenly and fixedly connected with the two spring grooves 17, the lateral surface of inlet tube 7 and drain pipe 8 is fixed mounting respectively has sealed ring 21, the top fixed mounting of valve body 1 has valve gap 2, the top fixedly connected with discharge valve 6 of valve gap 2, the inner chamber upper end of valve body 1 is provided with filter screen 3, the bottom of filter screen 3 is provided with ball cover 4, ball cover 4 fixed connection is on the inner wall of valve body 1, the upper end and the drain pipe 8 intercommunication of water outlet channel 11, the lower extreme and the disk seat 10 intercommunication of water outlet channel 11, the screw thread groove has been seted up respectively to the inner wall of inlet tube 7 and drain pipe 8, inlet tube 7 and drain pipe 8 are threaded connection respectively hollow threaded rod 20, two hollow threaded rod 20 lateral surfaces are fixedly connected with flange 19 respectively, blowdown hole 9 has been seted up to the bottom of valve body 1.

The working principle of the utility model is as follows: this free floater formula steam trap, through the cooperation between floater 5 that sets up, head rod 12, pivot seat 13, second connecting rod 14, sealing plug 15, when this free floater 5 formula steam trap begins to work, along with the condensate water increases gradually in the cavity of valve body 1, floater 5 can upwards float along with the increase of condensate water, thereby drive head rod 12 and upwards rotate along with the float of floater 5, thereby head rod 12 drives the sealing plug 15 that connects on the second connecting rod 14 and upwards moves and open valve port 16, thereby the condensate water discharges, in the drainage process, the liquid level descends gradually, make floater 5 descend along with the decline of liquid level, along with the decline of floater 5 make sealing plug 15 and valve port 16 gradually close each other, so can make the leakproofness better.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (7)

1. The utility model provides a free floater formula steam trap, includes valve body (1), play water channel (11), its characterized in that: the inner wall lower extreme fixed mounting of valve body (1) has pivot seat (13), the inner chamber of valve body (1) is provided with floater (5), the surface fixedly connected with head rod (12) of floater (5), the right-hand member rotation of head rod (12) is connected on pivot seat (13), the right-hand member bottom fixedly connected with second connecting rod (14) of head rod (12), the lower extreme fixedly connected with sealing plug (15) of second connecting rod (14), the lower extreme fixedly connected with disk seat (10) of valve body (1), valve port (16) have been seted up to the left end of disk seat (10), valve port (16) are located the below of pivot seat (13), the size looks adaptation of sealing plug (15) and valve port (16).

2. A free-floating steam trap as defined in claim 1, wherein: the novel water-saving valve is characterized in that a water inlet pipe (7) is arranged on the left side wall of the upper end of the valve body (1) in a communicating manner, a water outlet pipe (8) is arranged on the right side wall of the upper end of the valve body (1) in a communicating manner, annular spring grooves (17) are respectively formed in the left side face of the water inlet pipe (7) and the right side face of the water outlet pipe (8), buffer springs (18) are respectively and evenly distributed and fixedly connected in the two spring grooves (17), and sealing rings (21) are respectively and fixedly arranged on the outer side faces of the water inlet pipe (7) and the water outlet pipe (8).

3. A free-floating steam trap as defined in claim 1, wherein: the top of valve body (1) fixed mounting has valve gap (2), and the top of valve gap (2) fixedly connected with discharge valve (6).

4. A free-floating steam trap as defined in claim 1, wherein: the inner cavity upper end of valve body (1) is provided with filter screen (3), and the bottom of filter screen (3) is provided with spherical cap (4), spherical cap (4) fixed connection on the inner wall of valve body (1).

5. A free-floating steam trap as defined in claim 1, wherein: the upper end of the water outlet channel (11) is communicated with the water outlet pipe (8), and the lower end of the water outlet channel (11) is communicated with the valve seat (10).

6. A free-floating steam trap as defined in claim 2, wherein: the inner walls of the water inlet pipe (7) and the water outlet pipe (8) are respectively provided with a thread groove, the water inlet pipe (7) and the water outlet pipe (8) are respectively in threaded connection with hollow threaded rods (20), and one side surfaces of the two hollow threaded rods (20) are respectively fixedly connected with flanges (19).

7. A free-floating steam trap as defined in claim 1, wherein: a drain hole (9) is formed in the bottom of the valve body (1).