CN212881784U

CN212881784U - Outward-rotating pressing sealed drying cylinder device and drying machine

Info

Publication number: CN212881784U
Application number: CN202021243548.6U
Authority: CN
Inventors: 李利; 张传生
Original assignee: Zhuhai Siger Medical Equipment Co ltd
Current assignee: Zhuhai Siger Medical Equipment Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-06
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to the technical field of air purifier, especially, relate to an external rotation compresses tightly sealed drying cylinder device and desiccator, including disk seat, two drying cylinders and two external rotation sleeves, be equipped with two annular bosses that the axle center is ascending on the disk seat, be equipped with the external screw thread on the outer wall of annular boss, the opening of drying cylinder is installed downwards in annular boss, it is equipped with first annular flange to lie in the top of annular boss on the outer wall of drying cylinder, the external rotation sleeve is equipped with the second annular flange that is used for compressing tightly downwards on first annular flange and is used for the internal thread on the outer wall of annular boss of spiro union; the external part of the external rotation sleeve is provided with a plurality of wrench bulges which are matched with the open-ended wrench to disassemble and assemble the drying cylinder. The technical problems that a belt wrench is needed and a professional of the belt wrench can operate the drying cylinder due to high sealing requirement of the drying cylinder are solved.

Description

Outward-rotating pressing sealed drying cylinder device and drying machine

All as the field of technology

The utility model relates to an air purifier's technical field especially relates to an outward revolve and compress tightly sealed drying cylinder device and desiccator.

All the above-mentioned background techniques

At present, the double-tower adsorption dryer realizes double-tower air inlet switching, two drying cylinders purify air in turn, remove moisture in the air and continuously output clean air outwards.

Because the double-tower adsorption dryer comprises a drying cylinder and a valve seat for fixing the drying cylinder, wherein the drying cylinder needs to be maintained and disassembled, for example, a drying agent in the drying cylinder is replaced, or the drying cylinder and accessories in the drying cylinder need to be replaced due to corrosion, and the like, the drying cylinder is generally in threaded connection with the valve seat, so that the problems exist: firstly, the sealing requirement is high, a belt wrench is needed, and a professional person capable of operating the belt wrench is needed, so that the popularization and the use of the dryer are hindered; secondly, because the drying cylinder belongs to a consumable product, if a new drying cylinder is replaced, the sealing performance of the old and new screw threads is affected by the old and new screw thread connection; maintenance problems such as these are urgently needed.

All kinds of practical novel contents

The utility model aims at providing an outward revolve and compress tightly sealed drying cylinder device and desiccator, convenient to use, reduce cost.

The utility model discloses a first aspect provides: an outward-rotation pressing sealed drying cylinder device comprises a valve seat, two drying cylinders and two outward-rotation sleeves, wherein two annular bosses with upward axes are arranged on the valve seat, external threads are arranged on the outer walls of the annular bosses, the opening parts of the drying cylinders are downwards installed in the annular bosses, first annular flanges are arranged on the outer walls of the drying cylinders and positioned above the annular bosses, and the outward-rotation sleeves are provided with second annular flanges used for downwards pressing the first annular flanges and internal threads used for being screwed on the outer walls of the annular bosses; the outside of the external rotation sleeve is provided with a plurality of wrench bulges which are matched with an open-end wrench to disassemble and assemble the drying cylinder.

Preferably, an annular sealing ring is arranged between the first annular flange and the annular boss.

It is also preferred that the wrench protrusion is cylindrical or prismatic.

In addition, the preferable technical scheme is that the inner cavity of the annular boss on the valve seat is provided with an air inlet and outlet hole of the drying cylinder.

The second aspect of the present invention provides: a double-tower adsorption dryer comprises the external rotation pressing sealing type drying cylinder device.

The utility model has the advantages that: firstly, the technical problems that a belt wrench is needed and a professional of the belt wrench can operate the drying cylinder due to high sealing requirement of the drying cylinder are solved, and the use of the drying machine is popularized; and secondly, a new drying cylinder is convenient to replace, and the problem of poor sealing performance of the screw connection between new and old threads is solved.

Description of the drawings

FIG. 1 is a functional diagram of an embodiment of the present invention;

FIG. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a partial enlarged view of portion C of FIG. 3;

FIG. 5 is a cross-sectional view B-B of FIG. 2;

FIG. 6 is a front sectional view of an embodiment of the present invention;

FIG. 7 is a top view of an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion D of FIG. 6;

FIG. 9 is a schematic view of an embodiment of the open end wrench for assembling and disassembling the exterior sleeve and the drying cylinder according to the present invention;

wherein the reference numerals are:

1. a valve seat; 10. a primary air intake conduit; 20. an intake ball valve; 30. a first drying cylinder; 40. a second drying cylinder; 50. a first gas outlet valve; 60. a second gas outlet valve; 70. a main gas outlet pipeline; 80. a regeneration line; 90. a regeneration valve; 110. a first discharge branch pipe; 120. a second discharge branch pipe; 130. a discharge header pipe; 140. a differential pressure one-way check valve; 201. a first intake valve position; 202. a second intake valve position; 203. a first polytetrafluoroethylene sealing ball; 204. a first polyurethane seal ring;

1401. a sleeve; 1401a, a second polytetrafluoroethylene sealing ball sliding section; 1401b, a through hole; 1401c, a spring cartridge; 1402. a second polytetrafluoroethylene sealed sphere; 1403. a spring; 1404. a second polyurethane sealing ring;

1501. an outward rotating sleeve; 1502. an annular boss; 1503. a first annular flange; 1504. a second annular flange; 1506. the spanner is raised; 1507. an annular seal ring;

1600. an open end wrench.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

(specific embodiments) in all cases

As shown in fig. 1 to 9, a dryer including a novel air inlet ball valve includes a main air inlet pipeline 10, an air inlet ball valve 20, a first drying cylinder 30, a second drying cylinder 40, a first air outlet valve 50, a second air outlet valve 60, and a main air outlet pipeline 70.

The main gas outlet pipeline 70 is provided with a regeneration pipeline 80 communicated with the first drying cylinder 30 and the second drying cylinder 40, and the regeneration pipeline 80 is provided with a regeneration valve 90.

The first drying cylinder 30 and the second drying cylinder 40 are respectively communicated with the main air outlet pipeline 70 through the switching of the first air outlet valve 50 and the second air outlet valve 60.

The main air inlet pipeline 10 is respectively communicated with the first drying cylinder 30 and the second drying cylinder 40 through the switching of the air inlet ball valve 20; the air inlet ball valve 20 comprises a first air inlet valve position 201 communicated with the first drying cylinder 30, a second air inlet valve position 202 communicated with the second drying cylinder 40, and a first polytetrafluoroethylene sealing ball 203 between the first air inlet valve position 201 and the second air inlet valve position 202, wherein both the first air inlet valve position 201 and the second air inlet valve position 202 are provided with a first polyurethane sealing ring 204, and the first polytetrafluoroethylene sealing ball 203 presses the first polyurethane sealing ring 204 on one valve position to form a surface seal in the process of switching valve positions, so that the situations of high manufacturing precision and difficult practical application required by the existing line seal between a hard sealing ball and a hard sealing ring are eliminated, and the phenomenon of gas normal discharge caused by low precision of the line seal is also eliminated; in addition, still solved present soft sealing ball and easily adsorbed and block in the trachea and lose the problem of the switching function of valve.

The regeneration pipeline 80 is respectively communicated with the first drying cylinder 30 and the second drying cylinder 40, a first discharge branch pipe 110 for discharging the regeneration gas is arranged at the bottom of the first drying cylinder 30, a second discharge branch pipe 120 for discharging the regeneration gas is arranged at the bottom of the second drying cylinder 40, a differential pressure type one-way check valve 140 is respectively arranged on the first discharge branch pipe 110 and the second discharge branch pipe 120, and the two discharge branch pipes are communicated with a discharge header pipe 130 through the differential pressure type one-way check valve 140; the differential pressure one-way check valve 140 includes a sleeve 1401, a second ptfe ball 1402 and a spring 1403, the bushing 1401 is disposed between the discharge branch pipes and the discharge header pipe 130, the bushing 1401 is a hollow structure provided with a front end opening, the front end opening of the sleeve 1401 is provided with a second polyurethane sealing ring 1404, the sleeve 1401 comprises a second polytetrafluoroethylene sealing ball sliding section 1401a at the front end thereof and a spring clamping seat 1401c at the rear end thereof, the sleeve 1401 is provided with a through hole 1401b communicating with the discharge manifold 130, the spring 1403 is installed in the sleeve 1401, one end of the spring 1403 is abutted against the spring clamp 1401c, the other end of the spring pushes a second polytetrafluoroethylene sealing ball 1402 for sealing the discharge branch to the second polyurethane sealing ring 1404, and the second polyurethane sealing ring 1404 is pressed to form a surface seal. The first drying cylinder 30 and the second drying cylinder 40 are provided with adsorbents, one of the drying cylinders works, the adsorbents adsorb moisture in the compressed air, then clean compressed gas is output to the gas outlet valve, and a part of gas is led out from the clean air of the working drying cylinder through the regeneration pipeline 80 and is used for regeneration of the adsorbents in the other drying cylinder, so that the adsorbents are revived and can be reused. During regeneration, the dry gas sucks water from the adsorbent, passes through the differential pressure one-way check valve 140 through the discharge branch pipe, overcomes the elastic force of the spring 1403, pushes the second ptfe ball 1402 open, the second ptfe ball 1402 retreats along the second ptfe ball sliding section 1401a, and the exhaust gas passes through the discharge branch pipe, the front end opening of the sleeve 1401, the second urethane sealing ring 1404 and the through hole 1401b, and is discharged from the discharge manifold 130. The spring 1403 is provided with an initial elastic force, which plays a pressure maintaining role in the discharge branch pipe and the inside of the drying cylinder, facilitating establishment of the internal and external pressure difference.

The invention realizes that: 1. the gas is prevented from being exhausted frequently due to the failure of the valve, and the working stability of the dryer is greatly improved; 2. the polytetrafluoroethylene sealing ball with hard texture and the polyurethane sealing ring with soft texture are matched to form surface sealing, so that the situations of high manufacturing precision and difficult practical application required by the line sealing between the existing hard sealing ball and the hard sealing ring are eliminated, and the phenomenon of frequent gas discharge caused by low precision of the line sealing is also eliminated; in addition, the problem that the switching function of the valve is lost due to the fact that the existing soft sealing ball is easily adsorbed and clamped in an air pipe is solved; 3. because the pressure difference can be established, the problems of frequent discharge and dryer failure are solved, the application range of the dryer can be expanded to other important fields, for example, the dryer breaks through the limit of safety bottleneck in the dental medical industry with higher safety requirement, and the like, and the use of the dryer makes a major breakthrough; 4. the technical problem that the guide pillar is easy to clamp in the sliding process due to production tolerance between the guide pillar and the guide sleeve or fit tolerance between the guide pillar and the guide sleeve after a long time in the front-back sliding process of the guide pillar in the cantilever beam structure in the check valve is solved; the air guide holes are omitted from the guide pillars, so that the processing difficulty and the cost are reduced; the configuration number of the sealing rings is reduced, and the production cost is reduced; in addition, the simplified structure reduces maintenance cost; 5. the technical problems that a belt wrench is needed and a professional person of the belt wrench can operate the drying cylinder due to high sealing requirement of the drying cylinder are solved, and the use of the drying machine is popularized; the drying cylinder with a new screw thread is convenient to replace, and the problem of poor sealing performance of the screw connection between the new screw thread and the old screw thread is solved.

As shown in fig. 4, a first gap is provided between the outer diameter D1 of the second ptfe ball seal 1402 and the inner diameter D1 of the second ptfe ball sliding section 1401a, so that the second ptfe ball seal 1402 can slide smoothly in the second ptfe ball sliding section 1401a, and the second ptfe ball seal 1402 must be aligned with the second polyurethane sealing ring 1404 to function as a face seal. An example of the outer diameter D1 of the second ptfe ball 1402 is 13 mm in D1, an example of the inner diameter D1 of the second ptfe ball skid section 1401a is 14 mm in D1, and a first gap (D1-D1)/2 is 0.5 mm in this example.

As shown in fig. 4, a second gap is provided between the outer diameter D2 of the spring 1403 and the inner diameter D2 of the spring socket 1401c, so that the spring 1403 can be strengthened to perform positioning and guiding functions.

As shown in fig. 6-9, the drying machine further includes a valve seat 1 and two external-rotation sleeves 1501, two annular bosses 1502 are arranged on the valve seat 1, the two annular bosses 1502 are arranged axially upward, external threads are arranged on the outer walls of the annular bosses 1502, the opening parts of the two drying cylinders are downwards installed in the annular bosses 1502, a first annular flange 1503 is arranged on the outer wall of the drying cylinder above the annular bosses 1502, and the external-rotation sleeves 1501 are provided with a second annular flange 1504 used for pressing the first annular flange 1503 downwards and internal threads used for screwing on the outer walls of the annular bosses 1502; a plurality of wrench protrusions 1506 matched with the open end wrench 1600 for disassembling and assembling the drying cylinder are arranged outside the external rotation sleeve 1501. The function is as follows: firstly, the problem that the popularization and the use of the dryer are hindered due to the fact that a belt wrench is needed and a professional capable of operating the belt wrench is needed because the sealing requirement is high is solved; secondly, the technical problem that if a new drying cylinder is replaced and the old thread connection between new and old threads is carried out on the basis that the drying cylinder belongs to a consumable product, the sealing performance of the drying cylinder is affected is solved.

As shown in fig. 6-8, an annular sealing ring 1507 is disposed between the first annular flange 1503 and the annular boss 1502 to enhance the sealing between the drying cylinder and the annular boss 1502.

As shown in fig. 7 and 9, the wrench protrusion 1506 is cylindrical, and correspondingly, the recessed portion of the open-end wrench 1600 for tightening the external rotation sleeve 1501 is cylindrical; the wrench protrusion 1506 is prismatic, and correspondingly, the concave part of the open wrench 1600 for tightening the external rotation sleeve 1501 is prismatic.

The inner cavity of the annular boss 1502 on the valve seat 1 is provided with an air inlet and an air outlet (not shown) of the drying cylinder, namely an air inlet for air inlet drying and an exhaust branch pipe for exhaust gas during adsorbent regeneration.

A pressure difference establishing method of a dryer comprising a novel air inlet ball valve is characterized in that the air inlet ball valve 20 forms a surface seal by pressing the first polytetrafluoroethylene sealing ball 203 on the first polyurethane sealing ring 204 on one valve position in the process of switching the valve positions; the two discharge branch pipes pass through the differential pressure type one-way check valve 140, and the second polyurethane sealing ring 1404 is extruded by the second polytetrafluoroethylene sealing ball 1402 to form a surface seal, so that the situations of high manufacturing precision and difficult practical application required by the existing line seal between the hard sealing ball and the hard sealing ring are eliminated, and the phenomenon of frequent gas discharge caused by low precision of the line seal is also eliminated; in addition, still solved present soft sealing ball and easily adsorbed and block in the trachea and lose the problem of the switching function of valve.

The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and all equivalent changes made by the shape, structure and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. An outward-rotation pressing sealed drying cylinder device is characterized by comprising a valve seat, two drying cylinders and two outward-rotation sleeves, wherein two annular bosses with upward axes are arranged on the valve seat, external threads are arranged on the outer walls of the annular bosses, the opening parts of the drying cylinders are downwards installed in the annular bosses, a first annular flange is arranged on the outer wall of each drying cylinder and positioned above the annular bosses, and each outward-rotation sleeve is provided with a second annular flange used for downwards pressing the first annular flange and an internal thread used for being screwed on the outer wall of the annular boss; the outside of the external rotation sleeve is provided with a plurality of wrench bulges which are matched with an open-end wrench to disassemble and assemble the drying cylinder.

2. The epitrochoidal compression sealed dryer apparatus of claim 1, wherein an annular gasket is disposed between the first annular flange and the annular boss.

3. The externally threaded pressure sealed drying cylinder apparatus of claim 1, wherein the wrench protrusion is cylindrical or prismatic.

4. The externally-rotating, pressure-sealing dryer cartridge of claim 1 wherein the interior cavity of said valve seat in said annular boss is provided with air inlet and outlet ports for said dryer cartridge.

5. A double-tower adsorption dryer comprising the externally-rotating pressure-tight sealed dryer apparatus of any one of claims 1 to 4.