CN214699203U

CN214699203U - Adjustable mechanical sealing device

Info

Publication number: CN214699203U
Application number: CN202121056047.1U
Authority: CN
Inventors: 李志�
Original assignee: Zhiji Technology Tianjin Co ltd
Current assignee: Zhiji Technology Tianjin Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-12
Anticipated expiration: 2031-05-18

Abstract

The utility model provides a can regulate and control formula mechanical seal device relates to the mechanical seal field, including having the non-rotary quiet ring that can be connected along with the synchronous pivoted rotating ring of rotation axis and with quiet ring seat, the terminal surface that the axial is relative between rotating ring and quiet ring is self-contained sealed face, still includes adjustment mechanism, and adjustment mechanism includes trachea and the governing valve of adjusting air supply pressure, the utility model discloses in the dorsal part card of well quiet ring goes into in the ring groove, the angle such as in the ring groove is equipped with the multiunit and supports the spring of quiet ring, the spring plays the effect of preliminary promotion quiet ring, and the gaseous dorsal part that further promotes quiet ring that lets in the gas chamber way effectively adjusts the pressure of quiet ring and the sealed face of rotating ring through the governing valve to the sealed face pressure of adjusting rotating ring and quiet ring according to the behavior has been realized.

Description

Adjustable mechanical sealing device

Technical Field

The utility model relates to a mechanical seal field especially relates to a formula mechanical seal device can be regulated and control.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.

The existing mechanical seals are provided with a movable ring capable of synchronously rotating along with a rotating shaft and a non-rotating static ring connected with a static ring seat, the axially opposite end surfaces between the movable ring and the static ring are respective sealing surfaces, and after the mechanical seals are assembled, the working states of the movable ring and the static ring cannot be detected, so that the situations that the pressures of the sealing surfaces of the static ring and the movable ring are too large or too small often exist, when the pressures are too large, the mechanical seals are seriously abraded, and the later maintenance cost is higher; when the pressure is too small, the mechanical sealing effect is poor, and equipment is easily damaged, so how to adjust the sealing surface pressure of the movable ring and the static ring according to the operation condition becomes a problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a can regulate and control formula mechanical seal device, it has realized adjusting the seal face pressure of rotating ring and quiet ring according to the operational aspect.

The utility model discloses a realize through following technical scheme: the utility model provides an adjustable and controllable formula mechanical seal device, but have the rotating ring that can follow the synchronous pivoted of rotation axis and the non-rotation quiet ring of being connected with quiet ring holder, the axially relative terminal surface between rotating ring and quiet ring is sealed face separately, still include adjustment mechanism, adjustment mechanism includes trachea and the governing valve of adjusting air supply pressure, tracheal one end is connected with the air supply, set up the ring groove with quiet ring looks adaptation on the quiet ring holder, the dorsal part card of quiet ring is gone into in the ring groove, the central axis of ring groove coincides with the central axis of quiet ring, the central axis of ring groove is the centre of a circle, the ring groove is interior to be equipped with the multiunit spring that supports quiet ring at the same angle, set up the gas chamber way that links up with tracheal other end on the quiet ring holder, the gaseous dorsal part that promotes quiet ring in the gas chamber way, and the pressure of the sealed face of regulation quiet ring and rotating ring.

According to the above technical scheme, preferably, adjustment mechanism still includes sensor and detection controller, offers the mounting groove that is used for installing the sensor on the quiet ring, is equipped with between the bottom of mounting groove and the sealed face of quiet ring with quiet ring integrated into one piece's protective wall, the sensor passes through the cable and is connected with the detection controller electricity, the detection controller is connected with the governing valve electricity.

According to the technical scheme, preferably, a plurality of groups of guide posts are arranged on the stationary ring seat, and a plurality of groups of sliding grooves matched with the guide posts are formed in the back side of the stationary ring.

According to the above technical solution, preferably, the thickness of the protection wall is 0.5-1 mm.

According to the technical scheme, the sensor is preferably packaged by a stainless steel shell.

The utility model has the advantages that: the utility model discloses in the dorsal part card of well quiet ring goes into ring groove, the interior angle such as ring groove is equipped with the multiunit and supports the spring of quiet ring, the spring plays the effect of preliminary promotion quiet ring, and the gaseous dorsal part that further promotes quiet ring that lets in the gas chamber says, effectively adjusts the pressure of quiet ring and rotating ring seal face through the governing valve to realized adjusting the seal face pressure of rotating ring and quiet ring according to the operational aspect.

Drawings

Fig. 1 shows a schematic structural diagram according to an embodiment of the present invention.

In the figure: 1. a moving ring; 2. a stationary ring seat; 3. a stationary ring; 4. a sealing surface; 5. an adjustment mechanism; 6. an air tube; 7. adjusting a valve; 8. an annular neck; 9. a spring; 10. a gas lumen; 11. a sensor; 12. a detection controller; 13. a protective wall; 14. a guide post; 15. a chute.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

As shown in the figure, the utility model provides an adjustable mechanical sealing device, which comprises a movable ring 1 which can synchronously rotate along with a rotating shaft and a non-rotating static ring 3 connected with a static ring seat 2, wherein the axially opposite end surfaces of the movable ring 1 and the static ring 3 are respective sealing surfaces 4, the adjustable mechanical sealing device also comprises an adjusting mechanism 5, the adjusting mechanism 5 comprises an air pipe 6 and an adjusting valve 7 for adjusting the pressure of an air source, one end of the air pipe 6 is connected with the air source, an annular clamping groove 8 matched with the static ring 3 is arranged on the static ring seat 2, the back side of the static ring 3 is clamped into the annular clamping groove 8, the central axis of the annular clamping groove 8 is coincided with the central axis of the static ring 3, a plurality of groups of springs 9 for supporting the static ring 3 are arranged at equal angles in the annular clamping groove 8, a gas cavity channel 10 connected with the other end of the air pipe 6 is arranged on the static ring seat 2, the back side of the gas introduced into the gas cavity channel 10 pushes the back side of the static ring 3, and the pressure of the sealing surface 4 of the static ring 3 and the dynamic ring 1 is adjusted.

According to the above embodiment, preferably, the adjusting mechanism 5 further includes a sensor 11 and a detection controller 12, a mounting groove for mounting the sensor 11 is provided on the stationary ring 3, a protection wall 13 integrally formed with the stationary ring 3 is provided between the bottom of the mounting groove and the sealing surface 4 of the stationary ring 3, the sensor 11 is electrically connected to the detection controller 12 through a cable, the detection controller 12 is electrically connected to the adjusting valve 7, the sensor 11 preferably employs a film sensor 11 integrating temperature, pressure, vibration and rotation speed, and transmits the acquired information to the detection controller 12 in real time, and the detection controller 12 controls the air pressure of the air pipe 6 through the adjusting valve 7.

Further, be equipped with multiunit guide post 14 on quiet ring holder 2, the dorsal part of quiet ring 3 is seted up multiunit and the spout 15 of 14 looks adaptations of guide post, and guide post 14 cooperatees with spout 15 and can effectively improve the stability of quiet ring 3.

Further, the thickness of the protective wall 13 is 0.5-1mm, and the protective wall 13 can protect the sensor 11 without affecting the acquisition of the sensor 11.

Further, the sensor 11 is encapsulated by a stainless steel casing for further protecting the sensor 11.

The utility model has the advantages that: the utility model discloses in the dorsal part card of well quiet ring 3 goes into ring groove 8, the interior angle such as ring groove 8 is equipped with the spring 9 that the multiunit supported quiet ring 3, and spring 9 plays the effect of preliminary promotion quiet ring 3, and the gaseous dorsal part that further promotes quiet ring 3 that lets in the gas chamber way 10, through the pressure of the sealed face 4 of governing valve 7 effective regulation quiet ring 3 and rotating ring 1 to realized adjusting the sealed face 4 pressure of rotating ring 1 and quiet ring 3 according to the operational aspect.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The adjustable mechanical sealing device is characterized by further comprising an adjusting mechanism, wherein the adjusting mechanism comprises an air pipe and an adjusting valve for adjusting air source pressure, one end of the air pipe is connected with an air source, an annular clamping groove matched with the static ring is formed in the static ring seat, the back side of the static ring is clamped into the annular clamping groove, the central axis of the annular clamping groove is superposed with the central axis of the static ring, the central axis of the annular clamping groove is used as the center of a circle, a plurality of groups of springs for supporting the static ring are arranged in the annular clamping groove at equal angles, a gas cavity channel linked with the other end of the air pipe is formed in the static ring seat, and the back side of the static ring is pushed by gas introduced into the gas cavity channel, and the pressure of the sealing surface of the static ring and the dynamic ring is adjusted.

2. The adjustable mechanical sealing device according to claim 1, wherein the adjusting mechanism further comprises a sensor and a detection controller, the stationary ring is provided with a mounting groove for mounting the sensor, a protection wall integrally formed with the stationary ring is provided between a bottom of the mounting groove and a sealing surface of the stationary ring, the sensor is electrically connected to the detection controller through a cable, and the detection controller is electrically connected to the adjusting valve.

3. The adjustable mechanical seal device according to claim 2, wherein the stationary ring seat has a plurality of sets of guide posts, and a plurality of sets of sliding grooves are formed on a backside of the stationary ring to match with the guide posts.

4. A controllable mechanical seal according to claim 3, characterised in that the thickness of said protective wall is 0.5-1 mm.

5. The adjustable mechanical seal of claim 4, wherein said sensor is encapsulated in a stainless steel housing.