CN209783134U

CN209783134U - Ball valve

Info

Publication number: CN209783134U
Application number: CN201920579626.0U
Authority: CN
Inventors: 郑钦元; 邓军兵; 陈俊嘉
Original assignee: Zhejiang Chengxin Pharm & Chem Equipment Co Ltd
Current assignee: Zhejiang Chengxin Pharm & Chem Equipment Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2019-12-13
Anticipated expiration: 2029-04-25

Abstract

The utility model provides a ball valve belongs to valve technical field. It has solved the problem that current ball valve drying efficiency is low. This ball valve includes the spherical crown and has the spheroid of feed inlet, is equipped with the pivot that links to each other with the spherical crown on the spheroid, and the spherical crown rotates through the relative spheroid of pivot, is equipped with the sealing washer on the spheroid, and the spherical crown can paste and lean on sealing washer and sealed feed inlet, and the spherical crown has the heat transfer chamber, and the pivot has heat transfer channel, and the ball valve still includes the open structure, and heat transfer channel passes through open structure and heat transfer chamber intercommunication, and heat transfer channel's passageway entry is located outside the spheroid. This ball valve has the advantage that drying efficiency is high.

Description

Ball valve

Technical Field

The utility model belongs to the technical field of the valve, a ball valve is related to.

Background

The semi-ball valve is a new type quick open-close valve, especially a non-block flow valve, the valve of the feed inlet, discharge outlet, exhaust outlet in the conveying system has switch control, in the pharmaceutical industry, the semi-ball valve is installed at the discharge outlet of the vacuum drier bottom, as the discharge valve of the vacuum drier.

The hemisphere valve among the prior art, hemisphere valve mainly include the spherical crown and have the spheroid of feed inlet, and the spherical crown is the case of hemisphere valve, and the case of hemisphere valve is the spherical crown shape, is equipped with the sealing washer on the spheroid, and the sealing washer sets up along the oral wall of feed inlet, installs the spheroid pivoted pivot relatively on the spheroid, and the pivot links to each other with the spherical crown and drives the spherical crown and rotate, and the spherical crown pastes and leans on the sealing washer and makes the feed inlet sealed.

The semi-ball valve can be installed at the bottom of the vacuum dryer and used as a discharge valve. The rotation that vacuum drying machine passes through the spherical crown realizes ejection of compact and sealed, carry out the equipment of drying of heating under the vacuum condition because of vacuum drying machine will be placed in by the dry material, that is to say vacuum drying machine has the requirement to its inside temperature, however, it is big that the spheroid exposed to the external world receives the ambient temperature influence, lead to spherical crown temperature unstable, and the spherical crown can with the material direct contact in the vacuum drying machine, lead to the position of spherical crown to become whole vacuum drying machine's cold district, and then be difficult for the drying of wet goods material, cause the drying rate decline of vacuum drying machine to the material, the effect reduces. The mode that can easily think about for improving the heat insulating ability conventionality of hemisphere valve among the prior art is to establish a insulation cover at the valve body outside cover, but, its heat preservation position is spheroid outer wall, and the contact of spheroid outer wall can not reach the material in the vacuum drying machine, and the heat preservation effect does not hardly to hemisphere valve still can not play the effect that improves drying efficiency.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a ball valve, the technical problem of solution is how to improve drying efficiency.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a ball valve, includes the spherical crown and has the spheroid of feed inlet, be equipped with the pivot that links to each other with the spherical crown on the spheroid, the spherical crown rotates through the relative spheroid of pivot, be equipped with the sealing washer on the spheroid, the spherical crown can paste and lean on sealing washer and sealed feed inlet, a serial communication port, the spherical crown has the heat transfer chamber, the pivot has heat transfer channel, and the ball valve still includes the connectivity structure, heat transfer channel passes through connectivity structure and heat transfer chamber intercommunication, heat transfer channel's passageway entry is located outside the spheroid.

The ball valve of this application can regard as ribbon vacuum drying machine's bleeder valve. The principle of the ball valve is as follows: lie in the pipeline among the direct intercommunication prior art of passageway entry outside the spheroid, when spiral shell area vacuum drying machine during operation, continuously carry medium or interval transport medium in toward heat transfer passage through the pipeline, the medium temperature of carrying can be set for according to the inside temperature of spiral shell area vacuum drying machine during operation, the medium that gets into heat transfer passage passes through the communicating structure and gets into the heat transfer chamber, then carry out the heat transfer, make the crown face heatable of spherical crown and the inside material contact of spiral shell area vacuum drying machine, in order to solve the cold district phenomenon among the spiral shell area vacuum drying machine, the drying of the wet goods material easily, thereby improve the drying efficiency of desiccator.

Meanwhile, the channel inlet is positioned outside the sphere, so that an external pipeline can be directly communicated with the heat exchange channel, and an adapter is prevented from being additionally arranged, so that the conveying stability of the medium is ensured; because the ball body is one of the core components of the ball valve, the heat transfer channel is arranged on the rotating shaft, the self structure of the ball body is prevented from being damaged due to the fact that the heat transfer channel is arranged on the ball body, and the processing difficulty of the ball valve is reduced; the independently arranged communication structure ensures the stability of the transmission of the medium from the heat transfer channel to the heat exchange cavity.

In the above ball valve, the communicating structure includes a connecting rod, the spherical crown and the rotating shaft are respectively connected to two ends of the connecting rod, the connecting rod is provided with a transition passage penetrating through two ends of the connecting rod, and the heat transfer passage is communicated with the heat exchange cavity through the transition passage. The spherical crown passes through the connecting rod and links to each other with the pivot, and the connecting rod plays the effect of support to the spherical crown, when the ball valve was opened or was closed, drives the connecting rod by the pivot and rotates, and the connecting rod drives the spherical crown and rotates, and connecting rod and spherical crown link to each other all the time promptly to guarantee the promptness of spherical crown temperature heating, thereby improve the drying efficiency of desiccator.

In the above ball valve, the heat transfer passage includes two branches, both of which are communicated with the transition passage, and a cross-sectional area of each of the branches is smaller than a cross-sectional area of the transition passage. Set up two subchannels, a subchannel can be as the entry of medium, and another subchannel can be as the export of medium for the medium flows in and flows stably, and then makes the temperature of spherical cap can be stabilized in an within range, and simultaneously, the change through the passageway cross-sectional area makes the circulation speed of medium accelerate, and the at utmost reduces the spherical cap temperature and receives external disturbance's possibility, thereby improves the drying efficiency of desiccator.

In the above ball valve, the heat transfer channel further comprises a main channel, the channel inlet of the heat transfer channel is the inlet of the main channel, the main channel is communicated with the two branch channels, the main channel is provided with a mounting plate, the mounting plate blocks the channel inlet, and the mounting plate is provided with two mounting holes penetrating through the mounting plate. The structure limits the circulation path of the medium, so that the circulation speed of the medium is improved, and the drying efficiency of the dryer is improved.

in foretell ball valve, the pivot includes the supporting part and is located the connecting portion of spheroid, the spheroid is stretched out to the one end of supporting part, and the other end links to each other with connecting portion, the one end of connecting rod links to each other with the outer wall of connecting portion, the main road runs through the supporting part, and two subchannels are all seted up on connecting portion and run through the outer wall of connecting portion. This structure will transfer heat the passageway and set up the structure combination with the pivot, stretch out the spheroid because of the one end of supporting part, so run through the one end terminal surface setting of supporting part with the main road for external trachea can be directly with the main road intercommunication, avoid additionally seting up the hole of establishing that supplies external trachea to get into on the spheroid, simultaneously, the position of seting up of two subchannels makes the flow path of medium shorten, improves the circulation speed of medium from this, thereby improves the drying efficiency of desiccator.

In the above ball valve, the ball body is further provided with a bearing, the bearing is sleeved on the supporting portion, a step surface is formed between the supporting portion and the connecting portion, and an adjusting pad made of a rubber material is arranged between the bearing and the step surface. Reduce the coefficient of friction of pivot through setting up the bearing to guarantee that the pivot drives spherical crown pivoted rotation precision, and then guarantee spherical crown and sealing washer laminating compactness, simultaneously, the adjustment is filled up the side and is rotated rocking that the in-process takes place to above-mentioned pivot and compensate, and on the other hand reduces the possibility that the spherical crown produced the inertial force at the rotation in-process, and then guarantees the relative position between spherical crown and the sealing washer, guarantees the leakproofness of ball valve, thereby guarantees the job stabilization nature of desiccator.

In the above ball valve, the spherical crown is provided with an engagement hole, the heat exchange cavity is communicated with the transition channel through the engagement hole, the communication structure further comprises an inflow pipe, the inflow pipe is provided with an inner end and an outer end, the outer end of the inflow pipe penetrates through one of the mounting holes and extends out of the main channel, and the inner end of the inflow pipe penetrates through the engagement hole and extends into the heat exchange cavity. The medium is conveyed through the inflow pipe, so that the speed of the medium entering the spherical crown is increased on one hand, and the time length of heat exchange between the medium which just enters the channel and the medium after heat exchange at the position except the spherical crown is reduced as much as possible on the other hand, and the drying efficiency of the dryer is improved.

In the above ball valve, the outer wall of the inflow pipe abuts against the wall of one of the branch passages, and gaps are formed between the inflow pipe and the wall of the main passage, between the inflow pipe and the wall of the transition passage, between the inflow pipe and the wall of the connection hole, and between the inflow pipe and the wall of the heat exchange chamber. The outer pipe wall of inflow pipe pastes with the pore wall of one of them lane for the position of inflow pipe is confirmed, can drive the spherical crown and rotate because of the pivot, and the clearance sets up and reduces the possibility that the outer pipe wall of inflow takes place the friction on the one hand, because of the connecting rod be located the spheroid and with the interior material direct contact of spheroid, on the other hand reduces the interference of spheroid inside temperature to the inflow pipe temperature, thereby improves the drying efficiency of desiccator.

In the above ball valve, the outer end of the inflow pipe is provided with a threaded joint, the inflow pipe is tightly matched with one of the mounting holes, and the wall of the other mounting hole is provided with threads. The inflow pipe is in tight fit with one of them mounting hole to reduce the possibility that the medium takes place to reveal from between inflow pipe and the mounting hole as far as possible, simultaneously, the screw thread on another mounting hole pore wall makes external trachea and mounting panel be connected conveniently on the one hand, and on the other hand adopts threaded connection to improve connection stability, reduces the possibility that the medium takes place to reveal from another mounting hole, thereby improves the drying efficiency of desiccator.

In one of the ball valves described above, the inner end of the inflow pipe extends towards the center of the spherical cap. This structure on the one hand prolongs the heat transfer of medium in the heat transfer intracavity for it is long, and on the other hand makes the medium by the center towards trading and spread all around for the spherical cap heat transfer is abundant, thereby improves the drying efficiency of desiccator.

Compared with the prior art, the utility model provides a pair of ball valve has following advantage:

1. When spiral shell area vacuum drying machine during operation, continuously carry the medium or the interval transport medium in toward heat transfer passage through the pipeline, the medium lets in the heat transfer chamber for spiral shell area vacuum drying machine bottom has the heating capacity, solves the cold district phenomenon among the spiral shell area vacuum drying machine, makes the material in the spiral shell area vacuum drying machine be heated evenly, and the drying of wet article material is easily from this, thereby improves spiral shell area vacuum drying machine's drying efficiency.

2. A transition channel is arranged on the connecting rod, so that the timeliness of temperature adjustment of the spherical crown is guaranteed, and the drying efficiency of the spiral ribbon vacuum dryer is improved.

3. The medium is conveyed by the inflow pipe, so that the speed of the medium entering the spherical crown is increased on one hand, and the heat exchange time of the medium in the conveying process is reduced as much as possible on the other hand, and the drying efficiency of the spiral belt vacuum dryer is improved.

Drawings

Fig. 1 is a sectional view showing the overall structure of the ball valve.

Fig. 2 is an enlarged view of a portion of the structure of fig. 1.

Fig. 3 is a sectional view of the entire structure of the sphere.

In the figure, 1, a sphere; 11. a working chamber; 111. a feed inlet; 112. a discharge port; 2. a spherical cap; 21. a heat exchange cavity; 22. an engagement hole; 3. a rotating shaft; 31. a heat transfer channel; 311. dividing the channel; 312. a main road; 313. a channel inlet; 32. a support portion; 33. a connecting portion; 34. a step surface; 4. a seal ring; 5. a connecting rod; 51. a transition passage; 52. an inflow pipe; 521. an inner end; 522. an outer end; 53. a threaded joint; 6. mounting a plate; 61. mounting holes; 7. a bearing; 8. and adjusting the cushion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the ball valve includes a ball body 1 and a spherical cap 2.

As shown in fig. 3, the sphere 1 has a working chamber 11 for flowing material, one end of the working chamber 11 is a feeding hole 111, the other end is a discharging hole 112, the sphere 1 is provided with a sealing ring 4 and a rotating shaft 3 connected with the spherical crown 2, the spherical crown 2 is a bowl-shaped entity, the spherical crown 2 has a heat exchanging cavity 21, the spherical crown 2 can rotate relative to the sphere 1 through the rotating shaft 3, the spherical crown 2 is attached to the sealing ring 4 and seals the feeding hole 111, the rotating shaft 3 has a heat transferring channel 31, a communicating structure for flowing the medium into the heat exchanging cavity 21 and flowing out of the heat exchanging cavity 21 is provided between the heat transferring channel 31 and the heat exchanging cavity 21, in this embodiment, the medium is gas, the medium in actual production can be liquid, the communicating structure includes a connecting rod 5, in this embodiment, the spherical crown 2, the connecting rod 5 and the rotating shaft 3 are an integral structure, in actual production, the spherical crown, the spherical cap 2 and the rotating shaft 3 are respectively connected with two ends of the connecting rod 5, the rotating shaft 3 comprises a supporting part 32 and a connecting part 33 positioned in the spherical body 1, one end of the supporting part 32 extends out of the spherical body 1, the other end is connected with the connecting part 33, one end of the connecting rod 5 is connected with the outer wall of the connecting part 33, as shown in fig. 2, the heat transfer channel 31 comprises a main channel 312 and two branch channels 311, the main channel 312 penetrates through one end face of the supporting part 32, the two branch channels 311 both penetrate through the outer wall of the connecting part 33, the connecting rod 5 is provided with transition channels 51 penetrating through two ends of the connecting rod 5, the two branch channels 311 are both communicated with the transition channels 51, the cross-sectional area of each branch channel 311 is smaller than that of the transition channels 51, a channel inlet 313 of the heat transfer channel 31 is an inlet of the main channel 312, the main channel 312 is communicated with the two branch channels 311, the main channel 312 is provided with, the ball body 1 is further provided with a bearing 7, the bearing 7 is sleeved on the supporting portion 32, a step surface 34 is formed between the supporting portion 32 and the connecting portion 33, and an adjusting pad 8 is arranged between the bearing 7 and the step surface 34.

The spherical crown 2 is provided with an engagement hole 22, the heat exchange cavity 21 is communicated with the transition channel 51 through the engagement hole 22, the communication structure further comprises an inflow pipe 52, the inflow pipe 52 is provided with an inner end 521 and an outer end 522, the outer end 522 of the inflow pipe 52 penetrates through the mounting hole 61 and extends out of the main channel 312, the inner end 521 of the inflow pipe 52 penetrates through the engagement hole 22 and extends into the heat exchange cavity 21, the outer wall of the inflow pipe 52 is abutted against the wall of one of the branch channels 311, gaps are formed among the wall surfaces of the inflow pipe 52, the main channel 312, the transition channel 51, the engagement hole 22 and the wall of the heat exchange cavity 21, the outer end 522 of the inflow pipe 52 is provided with a threaded joint 53, the threaded joint 53 is provided with a threaded hole, the inner end 521 of the inflow pipe 52 extends towards the center of the spherical crown 2, the inflow pipe 52 is tightly matched with one of the mounting.

The ball valve of this application can install in spiral shell area vacuum drying machine's bottom, as the bleeder valve. In this embodiment, the medium is gas, in actual production, the medium can be liquid, the pipeline is intake pipe and blast pipe, when the ball valve is installed earlier, the air pump passes through intake pipe and screwed joint 53 threaded connection, blast pipe and another mounting hole 61 threaded connection wherein, air pump, intake pipe and blast pipe are existing product among the prior art. When the ball valve works, the rotating shaft 3 drives the connecting rod 5 to rotate, the connecting rod 5 drives the spherical crown 2 to be attached to the sealing ring 4 to seal the feed port 111 or drives the spherical crown 2 to be separated from the sealing ring 4 to open the feed port 111, if the temperature of the ball valve is high in the rotating process or when the spherical crown 2 is attached to the sealing ring 4, a refrigerant enters from the outer end 522 of the inflow pipe 52, then the refrigerant flows out from the inner end 521 of the inflow pipe 52, the flowing refrigerant is located in the heat exchange cavity 21 and carries out heat exchange, after the heat exchange, the temperature of the spherical crown 2 is within a proper temperature range, and at the moment, the refrigerant in the heat exchange cavity 21 is discharged out of the ball body 1 through the attachment hole 22, the transition channel 51; if the ball valve is low in temperature, the heat medium enters from the outer end 522 of the inflow pipe 52, then the heat medium flows out from the inner end 521 of the inflow pipe 52, the flowing refrigerant is located in the heat exchange cavity 21 and performs heat exchange, after the heat exchange, the temperature of the spherical crown 2 is within a proper temperature range, and at the moment, the refrigerant in the heat exchange cavity 21 is discharged out of the sphere 1 through the connecting hole 22, the transition passage 51 and the heat transfer passage 31, so that the temperature rise cycle is performed, and the drying of wet products in the vacuum dryer is facilitated. Therefore, the structure enables the temperature of the spherical crown 2 to be adaptive to the internal temperature of the ribbon vacuum dryer during working, solves the cold zone phenomenon in the ribbon vacuum dryer, and improves the drying efficiency of the dryer.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, but the difference is that in this embodiment, the ball valve is further provided with a communicating pipe, one end of the communicating pipe is embedded into the engaging hole 22, and the other end of the communicating pipe is embedded into the branch 311.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the sphere 1, the working chamber 11, the feed port 111, the discharge port 112, the feed port 111, the spherical cap 2, the heat exchange chamber 21, the engagement hole 22, the rotary shaft 3, the heat transfer passage 31, the branch passage 311, the main passage 312, the passage inlet 313, the support portion 32, the connection portion 33, the step surface 34, the seal ring 4, the connecting rod 5, the transition passage 51, the inflow pipe 52, the inner end 521, the outer end 522, the threaded joint 53, the mounting plate 6, the mounting hole 61, the bearing 7, the adjustment pad 8, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a ball valve, includes spherical crown (2) and spheroid (1) that has feed inlet (111), be equipped with pivot (3) that link to each other with spherical crown (2) on spheroid (1), spherical crown (2) can be relative spheroid (1) through pivot (3) and rotate, be equipped with sealing washer (4) on spheroid (1), spherical crown (2) can paste and lean on sealing washer (4) and sealed feed inlet (111), a serial communication port, spherical crown (2) have heat transfer chamber (21), pivot (3) have heat transfer passageway (31), ball valve still includes the open structure, heat transfer passageway (31) communicate with heat transfer chamber (21) through the open structure, the passageway entry (313) of heat transfer passageway (31) are located outside spheroid (1).

2. The ball valve according to claim 1, wherein the communicating structure comprises a connecting rod (5), the spherical crown (2) and the rotating shaft (3) are respectively connected with two ends of the connecting rod (5), a transition passage (51) penetrating through two ends of the connecting rod (5) is formed in the connecting rod (5), and the heat transfer passage (31) is communicated with the heat exchange cavity (21) through the transition passage (51).

3. A ball valve according to claim 2, wherein the heat transfer channel (31) comprises two branches (311), both branches (311) communicating with the transition channel (51), the cross-sectional area of each branch (311) being smaller than the cross-sectional area of the transition channel (51).

4. A ball valve according to claim 3, wherein the heat transfer passage (31) further comprises a main passage (312), the passage inlet (313) of the heat transfer passage (31) is the inlet of the main passage (312), the main passage (312) is communicated with both branch passages (311), a mounting plate (6) is arranged on the main passage (312), the mounting plate (6) blocks the passage inlet (313), and two mounting holes (61) penetrating through the mounting plate (6) are arranged on the mounting plate (6).

5. A ball valve according to claim 4, wherein the rotary shaft (3) comprises a support part (32) and a connecting part (33) located in the ball body (1), one end of the support part (32) extends out of the ball body (1), the other end is connected with the connecting part (33), one end of the connecting rod (5) is connected with the outer wall of the connecting part (33), the main channel (312) penetrates through the support part (32), and the two branch channels (311) are both arranged on the connecting part (33) and penetrate through the outer wall of the connecting part (33).

6. A ball valve according to claim 5, characterized in that the ball body (1) is further provided with a bearing (7), the bearing (7) is sleeved on the supporting portion (32), a step surface (34) is formed between the supporting portion (32) and the connecting portion (33), and an adjusting pad (8) made of rubber material is arranged between the bearing (7) and the step surface (34).

7. A ball valve according to any one of claims 4 to 6, characterized in that the spherical cap (2) is provided with an engagement hole (22), the heat exchange chamber (21) is communicated with the transition passage (51) through the engagement hole (22), the communication structure further comprises an inflow pipe (52), the inflow pipe (52) is provided with an inner end (521) and an outer end (522), the outer end (522) of the inflow pipe (52) passes through one of the mounting holes (61) and extends out of the main passage (312), and the inner end (521) of the inflow pipe (52) passes through the engagement hole (22) and extends into the heat exchange chamber (21).

8. A ball valve according to claim 7, characterized in that the outer wall of the inflow duct (52) abuts against the wall of one of the branch ducts (311), and that the inflow duct (52) has a gap with the wall of the main duct (312), the wall of the transition channel (51), the wall of the engagement hole (22) and the wall of the heat exchange chamber (21).

9. A ball valve according to claim 8, characterized in that the outer end (522) of the inflow pipe (52) is provided with a screw joint (53), the inflow pipe (52) being a tight fit with one of the mounting holes (61), and the wall of the other mounting hole (61) being provided with a screw thread.

10. A ball valve according to claim 9, characterized in that the inner end (521) of the inflow pipe (52) extends towards the centre of the spherical cap (2).