Air pre-drying device of air compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to an air pre-drying device of an air compressor. The air pre-drying device of the air compressor comprises drying cylinders, inner container pipes which are coaxially arranged are fixedly installed in the drying cylinders, spiral plates are fixedly installed in containing cavities between the drying cylinders and the inner container pipes, and the containing cavities between the drying cylinders and the inner container pipes are divided into spiral cavities through the spiral plates; a spiral activated aluminum oxide plate for drying air is inserted into the spiral cavity. According to the air pre-drying device of the air compressor, part of air enters the drying cylinder and flows along the spiral cavity, at the moment, the spiral activated aluminum oxide plate in the spiral cavity can dry the air, and the other part of the air enters the inner container pipe through the filtering holes and is dried through the heating pipe in the inner container pipe; and the dried air flows back into the spiral cavity and is dried again by the spiral activated aluminum oxide plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field especially relates to an air compressor air pre-drying device. BACKGROUND

[0002] Air compressor is a kind of equipment to compress air, improve air pressure or transport air, is widely used in industry, medical treatment, construction and many other fields, since the water content in the air compressed by air compressor, if not pre-drying, these liquid water can react chemically with oxygen and other components in compressed air, cause corrosion to the metal parts, pipeline, valve etc. in the compressor, thereby reduce the reliability and service life of equipment, increase maintenance cost and downtime. Usually, air drying is by installing dryer before air compressor, dryer is equipped with drying agent for absorbing moisture in air, however, ordinary dryer needs to stop for drying agent recovery after drying agent failure after a period of use, affect normal production, and when needing to replace drying agent, the dryer needs to be removed as a whole, then overhaul, it is time-consuming and laborious.

[0003] Therefore, it is necessary to provide a new air compressor air pre-drying device to solve the above technical problems. SUMMARY

[0004] To solve the above technical problems, the utility model provides an air compressor air pre-drying device.

[0005] The air compressor air pre-drying device provided by the utility model includes drying cylinders, the drying cylinders are provided with two groups, and the air entering the air compressor is dried alternately by the two groups of drying cylinders;

[0006] Each drying cylinder is fixedly installed with an inner container pipe arranged coaxially, and a plurality of filter holes are evenly distributed on the inner container pipe, a spiral plate is fixedly installed between the drying cylinder and the inner container pipe, and the space between the drying cylinder and the inner container pipe is divided into a spiral cavity by the spiral plate;

[0007] Spiral active alumina plates for drying air are inserted into the spiral cavities.

[0008] A threaded cylinder cover is installed at the bottom of the drying cylinder, a heating pipe is installed on the cylinder cover, and the heating pipe is inserted into the inner container pipe.

[0009] Preferably, a spiral column is fixedly installed on the inner cover surface of the cylinder cover, and the spiral column is inserted into an inner threaded opening arranged at the bottom of the inner container pipe and is fixedly connected with the inner threaded opening in a threaded manner.

[0010] Preferably, the heating pipe is fixedly installed at the end of the spiral column, and the spiral column is embedded with a storage battery electrically connected with the heating pipe and is provided with a USB interface for charging the storage battery.

[0011] Preferably, the top of the drying cylinder is fixedly provided with an air inlet interface communicated with the spiral cavity, and the air inlet interface is provided with an electromagnetic valve A.

[0012] Preferably, the bottom of the cylinder cover is fixedly provided with an air outlet corrugated interface communicated with the spiral cavity, and the air outlet corrugated interface is provided with an electromagnetic valve B.

[0013] Preferably, a three-way pipe is fixedly installed between the air inlet interfaces of the two groups of drying cylinders, and an air inlet pipe is installed on the three-way pipe of the air inlet interface; and a three-way pipe is fixedly installed between the air outlet corrugated interfaces of the two groups of drying cylinders, and an air outlet pipe is installed on the three-way pipe of the air inlet interface.

[0014] Compared with the related art, the air compressor air pre-drying device has the following beneficial effects:

[0015] 1. Part of the air enters the drying cylinder and flows along the spiral cavity, at this time, the spiral active alumina plates in the spiral cavity can dry the air, and the other part of the air enters the inner container pipe through the filter hole and is dried by the heating pipe in the inner container pipe, and the dried air flows back to the spiral cavity through the filter hole at the lowest point and is dried again by the spiral active alumina plates;

[0016] 2. When the spiral active alumina plates in one group of drying cylinders need to be replaced, the valve on the connecting pipeline of the group of drying cylinders is closed, and the valve on the connecting pipeline of the other group of drying cylinders is opened, so that when the spiral active alumina plates are used for a period of time and the drying agent fails, the spiral active alumina plates do not need to be recovered or replaced, and normal production is not affected.

[0017] 3. The heating pipe provided in the utility model can also desorb the water and other adsorbed substances adsorbed on the surface and pores of the active alumina through the filter hole when the air compressor is stopped, so that the adsorption sites of the active alumina are exposed again, thereby recovering the adsorption performance, and the secondary use of the spiral active alumina plates is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of a preferred embodiment of the air compressor air pre-drying device provided in the utility model is shown.

[0019] Figure 2 The structure diagram of a preferred embodiment of the air compressor air pre-drying device provided in the utility model is shown. Figure 1The structure schematic diagram of the spiral active alumina plate is shown in the figure.

[0020] Figure 3 For Figure 2 The structure schematic diagram of the drying cylinder section is shown in the figure.

[0021] Figure 4 For Figure 2 The structure schematic diagram of the spiral active alumina plate is shown in the figure.

[0022] Figure 5 For Figure 2 The structure schematic diagram of the cylinder cover and the heating pipe is shown in the figure.

[0023] In the figure, 1 is a drying cylinder, 1a is a spiral cavity, 11 is an inner container pipe, 11a is a filter hole, 111 is an inner thread opening, 12 is a spiral plate, 13 is an air inlet interface, 131 is an electromagnetic valve A, 2 is a spiral active alumina plate, 3 is a cylinder cover, 31 is a spiral column, 32 is an air outlet corrugated interface, 321 is an electromagnetic valve B, 4 is a heating pipe, 5 is a tee pipe, 6 is an air inlet pipe, and 7 is an air outlet pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0026] Please refer to Figures 1 to 5 The air compressor air pre-drying device provided by the utility model embodiment comprises a drying cylinder 1, a spiral active alumina plate 2 and a heating pipe 4.

[0027] In the embodiment of the utility model, please refer to Figures 1 to 5 The drying cylinder 1 is provided with two groups, and the air entering the air compressor is dried alternately by the two groups of drying cylinders 1. Specifically, the coaxially arranged inner container pipe 11 is fixedly installed in each drying cylinder 1, and a plurality of uniformly distributed filter holes 11a are formed in the inner container pipe 11. The spiral plate 12 is fixedly installed in the cavity between the drying cylinder 1 and the inner container pipe 11, and the cavity between the drying cylinder 1 and the inner container pipe 11 is divided into the spiral cavity 1a by the spiral plate 12. The spiral active alumina plate 2 for drying air is inserted into the spiral cavity 1a. The threaded cylinder cover 3 is installed at the bottom of the drying cylinder 1, the heating pipe 4 is installed on the cylinder cover 3, and the heating pipe 4 is inserted into the inner container pipe 11.

[0028] The top of the drying cylinder 1 is fixedly provided with an air inlet interface 13 communicated with the spiral cavity 1a, and the air inlet interface 13 is provided with an electromagnetic valve A131; the bottom of the cylinder cover 3 is fixedly provided with an exhaust corrugated interface 32 communicated with the spiral cavity 1a, and the exhaust corrugated interface 32 is provided with an electromagnetic valve B321; the air inlet interfaces 13 of the two sets of drying cylinders 1 are fixedly provided with a three-way pipe 5, and the three-way pipe 5 of the air inlet interface 13 is provided with an air inlet pipe 6; the exhaust corrugated interfaces 32 of the two sets of drying cylinders 1 are fixedly provided with a three-way pipe 5, and the three-way pipe 5 of the air inlet interface 13 is provided with an exhaust pipe 7.

[0029] It should be noted that: the exhaust pipe 7 is connected with the air inlet pipe of the air compressor, the air inlet pipe 6 is connected with the exhaust port of the filter, when using a set of drying cylinder 1, the valves of the connecting pipes on the other set of drying cylinder 1 are closed, at this time part of the air enters the drying cylinder 1 and flows along the spiral cavity 1a, at this time the spiral active alumina plate 2 in the spiral cavity 1a can dry the air, and the other part of the air enters the inner container pipe 11 through the filter hole 11a and is dried by the heating pipe 4 in the inner container pipe 11, and the dried air flows back to the spiral cavity 1a through the filter hole 11a at the lowest point and is dried again by the spiral active alumina plate 2;

[0030] When the spiral active alumina plate 2 in a set of drying cylinder 1 needs to be replaced, the valves of the connecting pipes on the set of drying cylinder 1 are closed, and the valves of the connecting pipes on the other set of drying cylinder 1 are opened, so that when the spiral active alumina plate 2 is used for a period of time and the desiccant is ineffective, the spiral active alumina plate 2 does not need to be replaced or restored, and the normal production is not affected;

[0031] When installing the spiral active alumina plate 2, after unscrewing the cylinder cover 3, the top of the spiral active alumina plate 2 is sleeved on the bottom of the inner container pipe 11, and the head of the top of the spiral active alumina plate 2 corresponds to the lowermost cavity opening of the spiral cavity 1a, at this time rotating the spiral active alumina plate 2 can make the spiral active alumina plate 2 slide into the spiral cavity 1a (reserving the tail head of the spiral active alumina plate 2 outside the spiral cavity 1a, so as to facilitate subsequent replacement of the spiral active alumina plate 2), when replacing the spiral active alumina plate 2, reversing the spiral active alumina plate 2 can make the spiral active alumina plate 2 slide out of the spiral cavity 1a, which is simple and convenient to operate.

[0032] Further, the heating pipe 4 can also desorb the water and other adsorbed substances adsorbed on the surface and pores of the spiral active alumina plate 2 through the filter hole 11a when the air compressor is stopped, so that the adsorption sites of the active alumina are exposed again, thereby restoring the adsorption performance of the active alumina, and realizing the secondary utilization of the spiral active alumina plate 2.

[0033] In the embodiment, the filter holes 11a provided on the inner container pipe 11 are all distributed on the upper half pipe section of the inner container pipe 11, so that the air in the inner container pipe 11 flows back to the spiral cavity 1a through the filter holes 11a at the lowest point, and is dried again by the spiral active alumina plate 2 in the spiral cavity 1a.

[0034] The valve is installed on the branch pipe connected with the two drying cylinders 1, and the exhaust corrugated interface 32 provided on the cylinder cover 3 is prepared by using a corrugated pipe, so that the cylinder cover 3 at the bottom of the drying cylinder 1 can be installed or dismounted flexibly.

[0035] Further, the spiral column 31 is fixedly installed on the inner cover surface of the cylinder cover 3, and the spiral column 31 is inserted into and threadedly fixedly connected with the inner threaded opening 111 provided at the bottom of the inner container pipe 11, so that the cylinder cover 3 is fixed at the bottom of the drying cylinder 1 and seals the bottom of the drying cylinder 1.

[0036] Further, the heating pipe 4 is fixedly installed at the end of the spiral column 31, the spiral column 31 is embedded with a storage battery electrically connected with the heating pipe 4 and is provided with a USB interface for charging the storage battery, the bottom of the cylinder cover 3 is fixedly installed with a switch for starting and stopping the heating pipe 4, so that the endurance of the heating pipe 4 is convenient, and the heating pipe 4 can be selected as a heating pipe with adjustable temperature.

[0037] The working principle of the air compressor air pre-drying device is as follows:

[0038] The exhaust pipe 7 is connected with the air inlet pipe of the air compressor, the air inlet pipe 6 is connected with the exhaust port of the filter, when one set of drying cylinder 1 is used, the valves of the connecting pipes of the other set of drying cylinder 1 are all closed, at this time, part of the air enters the drying cylinder 1 and flows along the spiral cavity 1a, at this time, the spiral active alumina plate 2 in the spiral cavity 1a can dry the air, and the other part of the air enters the inner container pipe 11 through the filter holes 11a and is dried by the heating pipe 4 in the inner container pipe 11, and the dried air flows back to the spiral cavity 1a through the filter holes 11a at the lowest point and is dried again by the spiral active alumina plate 2; when the spiral active alumina plate 2 in one set of drying cylinder 1 needs to be replaced, the valves of the connecting pipes of the set of drying cylinder 1 are closed, and the valves of the connecting pipes of the other set of drying cylinder 1 are opened, so that when the spiral active alumina plate 2 is invalid after being used for a period of time, the spiral active alumina plate 2 does not need to be replaced, and the normal production is not affected.

[0039] When the spiral active alumina plate 2 is installed, after the cylinder cover 3 is unscrewed, the spiral active alumina plate 2 is sleeved on the top of the inner container pipe 11, the plate head of the top of the spiral active alumina plate 2 corresponds to the lowermost cavity opening of the spiral cavity 1a, at this time, rotating the spiral active alumina plate 2 can make the spiral active alumina plate 2 slide into the spiral cavity 1a (the tail plate head of the spiral active alumina plate 2 is located outside the spiral cavity 1a, so that the spiral active alumina plate 2 can be replaced later), when the spiral active alumina plate 2 is replaced, reversely rotating the spiral active alumina plate 2 can make the spiral active alumina plate 2 slide out of the spiral cavity 1a, and the operation is simple and convenient.

[0040] The heating pipe 4 arranged at the air compressor stop working position can heat the spiral active alumina plate 2 through the filter hole 11a, water and other adsorbed substances in the surface and pores of the active alumina are desorbed, the adsorption sites of the active alumina are exposed again, and thus the adsorption performance of the active alumina is recovered, so that the secondary use of the spiral active alumina plate 2 is realized.

[0041] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed here.

[0042] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation by using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. An air compressor air pre-drying device, characterized by, Including dry cylinder (1), the dry cylinder (1) is provided with two groups, and the air entering the air compressor is dried alternately by two groups dry cylinder (1); Each dry cylinder (1) is fixedly installed with coaxially arranged inner tube (11), and a plurality of evenly distributed filter holes (11a) are formed in the inner tube (11), and a spiral plate (12) is fixedly installed in the cavity between the dry cylinder (1) and the inner tube (11), and the cavity between the dry cylinder (1) and the inner tube (11) is divided into a spiral cavity (1a) by the spiral plate (12); Spiral active alumina plate (2) for drying air is inserted into the spiral cavity (1a). The bottom of the dry cylinder (1) is provided with a threaded cylinder cover (3), and the cylinder cover (3) is provided with a heating pipe (4), and the heating pipe (4) is inserted into the inner tube (11).

2. The air compressor air pre-dryer device of claim 1, wherein, The inner cover surface of the cylinder cover (3) is fixedly installed with a spiral column (31), and the spiral column (31) is inserted into the inner threaded opening (111) provided at the bottom of the inner tube (11) and is fixedly connected with the inner threaded opening (111) in a threaded manner.

3. The air compressor air pre-dryer device of claim 2, wherein, The heating pipe (4) is fixedly installed at the end of the spiral column (31), and the spiral column (31) is embedded with a storage battery electrically connected with the heating pipe (4) and is provided with a USB interface for charging the storage battery.

4. The air compressor air pre-dryer device of claim 1, wherein, The top of the dry cylinder (1) is fixedly installed with an air inlet interface (13) communicated with the spiral cavity (1a), and the air inlet interface (13) is provided with an electromagnetic valve A (131).

5. The air compressor air pre-dryer device of claim 4, wherein, The bottom of the cylinder cover (3) is fixedly installed with an exhaust corrugated interface (32) communicated with the spiral cavity (1a), and the exhaust corrugated interface (32) is provided with an electromagnetic valve B (321).

6. The air compressor air pre-dryer device of claim 5, wherein, Three-way pipes (5) are fixedly installed between the air inlet interfaces (13) of the two groups of dry cylinders (1), and the air inlet pipes (6) are installed on the three-way pipes (5) of the air inlet interfaces (13), and the three-way pipes (5) are fixedly installed between the exhaust corrugated interfaces (32) of the two groups of dry cylinders (1), and the exhaust pipes (7) are installed on the three-way pipes (5) of the air inlet interfaces (13).

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