Suction drying device and air compressor provided with same

Abstract

The utility model relates to the technical field of air compression, in particular to a drying device for drying compressed air in an air compressor. In order to solve the problems of large occupied space, high energy consumption, low efficiency and high use cost of the existing air compression equipment due to the adoption of a double-tower type drying and sucking machine, the utility model provides a sucking and drying device which comprises a drying module, an air inlet filter, an air outlet filter and a skid-mounted base, the drying module, the air inlet filter and the air outlet filter are installed on the skid-mounted base, the air inlet filter is communicated with an air inlet buffer cavity in the drying module, and the air outlet filter is communicated with an air outlet buffer cavity in the drying module. The suction drying device is small in occupied space, low in energy consumption, high in efficiency and low in use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of air compression, in particular to a drying device for drying compressed air in an air compressor. Background Art

[0002] At present, most common air compression equipment on the market uses a double-tower dry absorption machine to dry the compressed air compressed by a compression main engine. Such air compression equipment has the following problems:

[0003] 1. There are two adsorption tower cylinders in the double-tower dry absorption machine. The adsorption tower cylinders are large in volume, resulting in a large space occupied by the air compression equipment; since both adsorption tower cylinders are pressure vessels, they need to be inspected every year, resulting in an increase in the user's usage cost;

[0004] 2. The double-tower dry absorption machine has high energy consumption, low efficiency, and a high amount of regeneration gas, which further increases the user's usage cost;

[0005] 3. In the double-tower dry absorption machine, the internal filling is loose, easy to form a tunneling effect, and the surface cannot be fully utilized, and the pressure dew point is unstable, so that the dried compressed air cannot meet the usage requirements. Summary of the Utility Model

[0006] To solve the problems of large space occupation, high energy consumption, low efficiency and high usage cost of existing air compression equipment caused by using a double-tower dry absorption machine, the utility model provides a drying device, which includes a drying module, an air inlet filter, an air outlet filter and a skid-mounted base. The drying module, the air inlet filter and the air outlet filter are installed on the skid-mounted base, and the air inlet filter is communicated with an air inlet buffer chamber in the drying module, and the air outlet filter is communicated with an air outlet buffer chamber in the drying module. The drying device of the utility model uses the drying module to dry the compressed air compressed by the compression main engine in the air compression equipment, effectively reducing the volume of the drying device, thereby reducing the space occupied by the air compression equipment; the drying module has low energy consumption, high efficiency, and does not need to be reinspected every year, and the usage cost is low; in the drying device of the utility model, the air inlet filter, the air outlet filter and the drying module are installed and fixed on the skid-mounted base, with high integration, small space occupation, and convenient replacement of the air inlet filter and the air outlet filter, which can reduce the maintenance cost of the drying device of the utility model, and further reduce the user's usage cost. In addition, an air inlet buffer chamber and an air outlet buffer chamber are arranged in the drying module of the drying device of the utility model, so that the compressed air can be buffered when entering and leaving the drying module, avoiding too much or too little moisture adsorption during the process of drying the compressed air by individual adsorption cylinders in the drying module.

[0007] Preferably, the intake buffer chamber is communicated with the adsorption cylinder in the drying module through an intake air cylinder. In this way, during the operation of the drying device of the present invention, the compressed gas in the intake buffer chamber can be transported to the adsorption cylinder in the drying module through the intake air cylinder for drying treatment, which is convenient for controlling the flow rate of the compressed gas transported to the drying module and convenient for maintenance and replacement in case of failure of the drying device of the present invention, reducing the maintenance cost of the drying device of the present invention. Further, the adsorption cylinder includes an A-chamber adsorption cylinder and a B-chamber adsorption cylinder, and the A-chamber adsorption cylinder and the B-chamber adsorption cylinder are arranged in an alternating manner. In this way, when using the drying device of the present invention to dry compressed air, the A-chamber adsorption cylinder and the B-chamber adsorption cylinder can be used alternately for adsorption treatment and regeneration treatment, avoiding the reduction of the drying treatment efficiency caused by all the adsorption cylinders undergoing regeneration treatment simultaneously in the drying device of the present invention. Further preferably, the drying module includes an A-chamber communication channel and a B-chamber communication channel. The A-chamber communication channel is located at the top of the A-chamber adsorption cylinder, and an A-chamber heating sheet is arranged in the A-chamber communication channel, and the A-chamber heating sheet is located at the A-chamber communication hole of the A-chamber communication channel and the A-chamber adsorption cylinder; the B-chamber communication channel is located at the top of the B-chamber adsorption cylinder, and a B-chamber heating sheet is arranged in the B-chamber communication channel, and the B-chamber heating sheet is located at the B-chamber communication hole of the B-chamber communication channel and the B-chamber adsorption cylinder. In this way, an A-chamber heating sheet is arranged in the A-chamber communication channel and a B-chamber heating sheet is arranged in the B-chamber communication channel. When the drying device of the present invention uses the A-chamber adsorption cylinder and the B-chamber adsorption cylinder for regeneration treatment, the A-chamber heating sheet is used to heat the dry gas entering the A-chamber adsorption cylinder, and the dry high-temperature gas is used as the regeneration gas to desorb the molecular sieve in the A-chamber adsorption cylinder, which can reduce the consumption of the regeneration gas required for the regeneration treatment of the A-chamber adsorption cylinder and save electricity; the B-chamber heating sheet is used to heat the dry gas entering the B-chamber adsorption cylinder, and the dry high-temperature gas is used as the regeneration gas to desorb the molecular sieve in the B-chamber adsorption cylinder, which can reduce the consumption of the regeneration gas required for the regeneration treatment of the B-chamber adsorption cylinder and save electricity. Thus, it can be seen that by respectively arranging the A-chamber heating sheet and the B-chamber heating sheet in the A-chamber communication channel and the B-chamber communication channel, the consumption of the regeneration gas of the drying device of the present invention can be effectively reduced, and the use cost of the drying device of the present invention can be reduced.

[0008] Preferably, the intake buffer chamber and the outlet buffer chamber are oppositely arranged, and the intake buffer chamber is located at the bottom of the drying module close to the skid-mounted base, and the outlet buffer chamber is located at the top of the drying module away from the skid-mounted base. In this way, when using the drying device of the present invention to dry compressed air, the compressed air to be dried enters the adsorption cylinder from the bottom end of the drying module, and the dried compressed air leaves from the top of the adsorption cylinder, which can make the compressed air to be dried fully contact with the molecular sieve in the adsorption cylinder, improving the drying effect and processing efficiency of the drying device of the present invention.

[0009] Preferably, the intake air filter includes a first intake air filter and a second intake air filter, and the second intake air filter is located between the first intake air filter and the intake buffer chamber. In this way, before the compressed air enters the intake buffer chamber, the first intake air filter and the second intake air filter are used to perform two-stage filtration on the compressed air, which can reduce the impurity and moisture content in the compressed air entering the intake buffer chamber, improving the drying effect and processing efficiency of the drying device of the present invention. Further, the first intake air filter and the outlet air filter are located at both ends of the drying module and close to the same side of the drying module, and the outlet air filter is close to the outlet buffer chamber; the second intake air filter is located on the other side of the drying module and close to the middle of the drying module. In this way, the intake air filter and the outlet air filter are distributed around the drying module, which can reduce the area of the skid-mounted base, thereby reducing the space required for installing the drying device of the present invention, and further reducing the occupied space of the air compressor equipment.

[0010] Preferably, a regeneration air release cylinder is provided at the regeneration air release end of the drying module, and the regeneration air release cylinder and the intake buffer chamber are located at both ends of the adsorption cylinder and are oppositely arranged. In this way, during the operation of the drying device of the present invention, the regeneration release cylinder can be used to control the speed of releasing the wet air generated by the regeneration treatment of the adsorption cylinder, and the control is simple and convenient. Further, a silencer is provided at the air outlet of the regeneration air release cylinder, and the silencer is located at the bottom of the adsorption cylinder. In this way, when releasing the wet air generated by the regeneration treatment, the silencer can be used for sound absorption, thereby reducing the working noise of the drying device of the present invention.

[0011] In addition, the present invention also proposes an air compressor, which is equipped with any one of the above drying devices. Such an air compressor has a drying device with a small volume, small occupied space, good drying effect, high processing efficiency, and less consumption of regeneration air volume, reducing the user's usage cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the drying device of the present invention;

[0013] Figure 2 is Figure 1 a top view structural schematic diagram of the drying device shown;

[0014] Figure 3 is Figure 2 the A-A cross-sectional structural schematic diagram in Specific embodiments

[0015] Next, in combination with Figures 1 to 3 this, the drying device of the present utility model and the air compressor equipped with this drying device will be described in detail.

[0016] As Figures 1 to 3 shown, the drying device of the present utility model includes a drying module 1, an air inlet filter, an air outlet filter 3 and a skid-mounted base 4. The drying module 1, the air inlet filter and the air outlet filter 3 are installed on the skid-mounted base 4, and the air inlet filter is communicated with the air inlet buffer chamber 11 in the drying module 1, and the air outlet filter 3 is communicated with the air outlet buffer chamber 12 in the drying module 1. The drying device of the present utility model uses the drying module 1 to dry the compressed air formed by the compression of the compression main engine in the air compression equipment, effectively reducing the volume of the drying device of the present utility model, thereby reducing the space occupied by the air compression equipment; the drying module 1 has low energy consumption, high efficiency, and does not require annual re-inspection, and the use cost is low; in the drying device of the present utility model, the air inlet filter, the air outlet filter 3 and the drying module 1 are installed and fixed on the skid-mounted base 4, with high integration and small occupied space, and the air inlet filter and the air outlet filter 3 are convenient to replace, which can reduce the maintenance cost of the drying device of the present utility model, and further reduce the use cost of users. In addition, an air inlet buffer chamber 11 and an air outlet buffer chamber 12 are provided in the drying module 1 of the drying device of the present utility model, so that the compressed air can be buffered when entering and leaving the drying module 1, avoiding excessive or insufficient moisture adsorption by individual adsorption cylinders in the drying module 1 during the process of drying the compressed air. Preferably, the air inlet buffer chamber 11 and the air outlet buffer chamber 12 are arranged oppositely, and the air inlet buffer chamber 11 is located at the bottom of the drying module 1 close to the skid-mounted base 4, and the air outlet buffer chamber 12 is located at the top of the drying module 1 far from the skid-mounted base 4. In this way, when using the drying device of the present utility model to dry the compressed air, the compressed air to be dried enters the adsorption cylinder from the bottom end of the drying module 1, and the dried compressed air leaves from the top of the adsorption cylinder, which can make the compressed air to be dried fully contact with the molecular sieve in the adsorption cylinder, improving the drying effect and processing efficiency of the drying device of the present utility model.

[0017] As Figures 1 to 3As shown, the intake buffer chamber 11 is connected to the adsorption cylinder in the drying module 1 through an intake cylinder. In this way, during the operation of the drying device of the present utility model, the compressed gas in the intake buffer chamber 11 can be transported to the adsorption cylinder in the drying module 1 through the intake cylinder for drying treatment, which is convenient for controlling the flow rate of the compressed gas transported to the drying module 1 and is also convenient for maintenance and replacement when the drying device of the present utility model fails, reducing the maintenance cost of the drying device of the present utility model. Preferably, the adsorption cylinder includes an A-chamber adsorption cylinder 131 and a B-chamber adsorption cylinder 132, and the A-chamber adsorption cylinder 131 and the B-chamber adsorption cylinder 132 are arranged in an alternating manner. In this way, when using the drying device of the present utility model to dry compressed air, the A-chamber adsorption cylinder 131 and the B-chamber adsorption cylinder 132 can be used alternately for adsorption treatment and regeneration treatment, avoiding the reduction of the drying treatment efficiency due to all the adsorption cylinders performing regeneration treatment simultaneously. Preferably, the A-chamber adsorption cylinder 131 and the B-chamber adsorption cylinder 132 are respectively composed of at least two magnesium alloy cylinders, and the magnesium alloy cylinders are filled with an adsorbent. In this way, the volume of a single adsorption cylinder can be reduced. For example, the volume of a single adsorption cylinder can be set to be less than 25L, so that a single adsorption cylinder does not fall within the category of pressure vessels, avoiding the annual re-inspection of the drying device of the present utility model, reducing the maintenance time and cost of the drying device of the present utility model, and thus reducing the use cost of the drying device of the present utility model. Preferably, molecular sieve is used as the adsorbent and filled in the magnesium alloy cylinder, which is convenient to select. Preferably, the drying module 11 includes an A-chamber communication channel 141 and a B-chamber communication channel 142. The A-chamber communication channel 141 is located at the top of the A-chamber adsorption cylinder 131. An A-chamber heating sheet 143 is arranged in the A-chamber communication channel 141, and the A-chamber heating sheet 143 is located at the A-chamber communication hole 1311 of the A-chamber communication channel 141 and the A-chamber adsorption cylinder 131; the B-chamber communication channel 142 is located at the top of the B-chamber adsorption cylinder 132. A B-chamber heating sheet 144 is arranged in the B-chamber communication channel 142, and the B-chamber heating sheet 144 is located at the B-chamber communication hole 1321 of the B-chamber communication channel 142 and the B-chamber adsorption cylinder 132.Thus, an A-chamber heating sheet 143 is disposed in the A-chamber communication channel 141, and a B-chamber heating sheet 144 is disposed in the B-chamber communication channel 142. When the drying device of the present invention uses the A-chamber adsorption cylinder 131 and the B-chamber adsorption cylinder 132 for regeneration treatment, the A-chamber heating sheet 143 is used to heat the dry gas entering the A-chamber adsorption cylinder 131, and the dry high-temperature gas is used as the regeneration gas to desorb the molecular sieve in the A-chamber adsorption cylinder 131, which can reduce the consumption of the regeneration gas required for the regeneration treatment of the A-chamber adsorption cylinder 131 and save power consumption; the B-chamber heating sheet 144 is used to heat the dry gas entering the B-chamber adsorption cylinder 132, and the dry high-temperature gas is used as the regeneration gas to desorb the molecular sieve in the B-chamber adsorption cylinder 132, which can reduce the consumption of the regeneration gas required for the regeneration treatment of the B-chamber adsorption cylinder 132 and save power consumption. It can be seen that by respectively disposing the A-chamber heating sheet 143 and the B-chamber heating sheet 144 in the A-chamber communication channel 141 and the B-chamber communication channel 142, the consumption of the regeneration gas of the drying device of the present invention can be effectively reduced, and the use cost of the drying device of the present invention can be reduced. Preferably, the A-chamber communication channel 141 is communicated with the outlet buffer chamber 12 through the A-chamber communication pipe 145, and the B-chamber communication channel 142 is communicated with the outlet buffer chamber 12 through the B-chamber communication pipe 146. In this way, when the A-chamber adsorption cylinder 131 or the B-chamber adsorption cylinder 132 is regenerated, the dry compressed air in the outlet buffer chamber 12 can be diverted into the A-chamber adsorption cylinder 131 or the B-chamber adsorption cylinder 132, that is, the dry compressed air obtained by the drying treatment of the drying module 11 is directly used as the regeneration gas to regenerate the A-chamber adsorption cylinder 131 or the B-chamber adsorption cylinder 132, without introducing dry compressed air from the outside. The introduction is simple and convenient, and the use cost of the drying device of the present invention can be reduced.

[0018] Such as Figures 1 to 3As shown, the air intake filter includes a first air intake filter 21 and a second air intake filter 22, and the second air intake filter 22 is located between the first air intake filter 21 and the air intake buffer chamber 11. In this way, before the compressed air enters the air intake buffer chamber 11, the first air intake filter 21 and the second air intake filter 22 are used to perform two-stage filtering treatment on the compressed air, which can reduce the impurities and moisture content in the compressed air entering the air intake buffer chamber 11, and improve the drying treatment effect and treatment efficiency of the drying device of the utility model. Preferably, the first air intake filter 21 and the air outlet filter 3 are located at both ends of the drying module 1 and close to the same side of the drying module 1, and the air outlet filter 3 is close to the air outlet buffer chamber 12; the second air intake filter 22 is located on the other side of the drying module 1 and close to the middle of the drying module 1. In this way, the first air intake filter 21, the second air intake filter 22 and the air outlet filter 3 are distributed around the drying module 1, which can reduce the area of ​​the skid-mounted base 3, thereby reducing the space required for the installation of the drying device of the utility model, and further reducing the occupied space of the air compressor equipment.

[0019] like Figures 1 to 3 As shown, the regeneration gas discharge end of the drying module 1 is provided with a regeneration gas discharge cylinder 15, and the regeneration gas discharge cylinder 15 and the air intake buffer chamber 11 are located at the two ends of the adsorption cylinder, namely, the A chamber adsorption cylinder 131 and the B chamber adsorption cylinder 132, and are arranged opposite to each other. In this way, during the operation of the drying device of the utility model, the regeneration discharge cylinder 15 can be used to control the speed of the wet air generated by the regeneration treatment of the adsorption cylinder, and the control is simple and convenient. Preferably, a muffler 16 is provided at the air outlet of the regeneration gas discharge cylinder 15, and the muffler 16 is located at the bottom of the adsorption cylinder. In this way, when the wet air generated by the regeneration treatment is discharged, the muffler 16 can be used for silencing, thereby reducing the working noise of the drying device of the utility model.

[0020] like Figure 1 and 2 As shown, the drying device of the utility model further includes a drain valve 5 and a control box 6. The drain valve 5 is fixedly mounted on the skid-mounted base 4 and is connected to the air intake filter, the air outlet filter 3 and the drying module 1 through pipelines (not shown in the figure). In this way, the wastewater generated by the drying device of the utility model during operation can be collected through the pipeline to the drain valve 5 for discharge, which effectively reduces the number of drain outlets and facilitates wastewater treatment. The control box 6 is fixedly mounted on the skid-mounted base 4 and is used to control the operation of the air intake cylinder, the regeneration gas discharge cylinder 15 and the heating plate, and the control is simple and convenient.

[0021] After the suction drying device of the utility model is assembled into the air compressor, the working principle of the suction drying device of the utility model is as follows:

[0022] The compressed air generated by compression of the compression main unit in the air compressor sequentially passes through the first intake filter 21 and the second intake filter 22 and then enters the intake buffer chamber 11.

[0023] When using the A-chamber adsorption cylinder body 131 to dry the compressed air and regenerate the B-chamber adsorption cylinder body 132:

[0024] The first intake air cylinder 111 connected to the A-chamber adsorption cylinder body 131 is opened, so that the compressed air in the intake buffer chamber 11 enters the A-chamber adsorption cylinder body 131. The molecular sieve in the A-chamber adsorption cylinder body 131 is used to dry the compressed air, that is, the moisture in the compressed air is adsorbed onto the molecular sieve, thereby obtaining dry compressed air. And this dry compressed air enters the outlet buffer chamber 12 and is output through the outlet filter 3 for use by the user end. The dry compressed air in the outlet buffer chamber 3 is drained into the B-chamber communication channel 142 through the B-chamber connecting pipe 146. The dry compressed air enters the B-chamber adsorption cylinder body 132 after being heated by the B-chamber heating sheet 144. After the high-temperature dry compressed air obtained by heating the B-chamber heating sheet 144 enters the B-chamber adsorption cylinder body 132, the high-temperature dry compressed water air desorbs the molecular sieve in the B-chamber adsorption cylinder body 132, so that the moisture adsorbed on the molecular sieve is removed from the molecular sieve and wet air with a higher moisture content is obtained. And this wet air is discharged through the regeneration air release cylinder 15 and is subjected to silencing treatment through the silencer 16 and then discharged into the atmosphere.

[0025] When using the B-chamber adsorption cylinder body 132 to dry the compressed air and regenerate the A-chamber adsorption cylinder body 131:

[0026] The second intake air cylinder 112 connected to the B-chamber adsorption cylinder body 132 is opened, so that the compressed air in the intake buffer chamber 11 enters the B-chamber adsorption cylinder body 132. The molecular sieve in the B-chamber adsorption cylinder body 132 is used to dry the compressed air, that is, the moisture in the compressed air is adsorbed onto the molecular sieve, thereby obtaining dry compressed air. And this dry compressed air enters the outlet buffer chamber and is output through the outlet filter 3 for use by the user end. The dry compressed air in the outlet buffer chamber 12 is drained into the A-chamber communication channel 141 through the A-chamber connecting pipe 145. The dry compressed air enters the A-chamber adsorption cylinder body 131 after being heated by the A-chamber heating sheet 143. After the high-temperature dry compressed air obtained by heating the A-chamber heating sheet 143 enters the A-chamber adsorption cylinder body 131, the high-temperature dry compressed water air desorbs the molecular sieve in the A-chamber adsorption cylinder body 131, so that the moisture adsorbed on the molecular sieve is removed from the molecular sieve and wet air with a higher moisture content is obtained. And this wet air is discharged through the regeneration air release cylinder 15 and is subjected to silencing treatment through the silencer 16 and then discharged into the atmosphere.

[0027] During the operation of the drying device of the present utility model, the control box can cyclically switch the working modes of the A-chamber adsorption cylinder 131 and the B-chamber adsorption cylinder 132 in the drying module according to the set time. That is, when the A-chamber adsorption cylinder 131 is in the adsorption mode (drying treatment), the B-chamber adsorption cylinder 132 is regenerated by the regeneration method; when the B-chamber adsorption cylinder 132 is in the adsorption mode, the A-chamber adsorption cylinder 131 is regenerated by the regeneration method.

Claims

1. A drying device, characterized in that: The drying device includes a drying module, an air inlet filter, an air outlet filter and a skid-mounted base, wherein the drying module, the air inlet filter and the air outlet filter are installed on the skid-mounted base, and the air inlet filter is connected to the air inlet buffer cavity in the drying module, and the air outlet filter is connected to the air outlet buffer cavity in the drying module.

2. The drying device according to claim 1, characterized in that: The air intake buffer chamber is communicated with the adsorption cylinder in the drying module through the air intake cylinder.

3. The drying device according to claim 2, characterized in that: The adsorption cylinder body comprises an A-cavity adsorption cylinder body and a B-cavity adsorption cylinder body, and the A-cavity adsorption cylinder body and the B-cavity adsorption cylinder body are arranged in a staggered manner.

4. The drying device according to claim 3, characterized in that: The drying module includes an A-cavity communicating channel and a B-cavity communicating channel. The A-cavity communicating channel is located at the top of the A-cavity adsorption cylinder, and an A-cavity heating plate is provided in the A-cavity communicating channel, and the A-cavity heating plate is located at the A-cavity communicating channel and the A-cavity communicating hole of the A-cavity adsorption cylinder; the B-cavity communicating channel is located at the top of the B-cavity adsorption cylinder, and a B-cavity heating plate is provided in the B-cavity communicating channel, and the B-cavity heating plate is located at the B-cavity communicating channel and the B-cavity communicating hole of the B-cavity adsorption cylinder.

5. The drying device according to any one of claims 1 to 4, characterized in that: The air inlet buffer chamber and the air outlet buffer chamber are arranged opposite to each other, and the air inlet buffer chamber is located at the bottom of the drying module close to the skid-mounted base, and the air outlet buffer chamber is located at the top of the drying module away from the skid-mounted base.

6. The drying device according to any one of claims 1 to 4, characterized in that: The air intake filter includes a first air intake filter and a second air intake filter, and the second air intake filter is located between the first air intake filter and the air intake buffer chamber.

7. The drying device according to claim 6, characterized in that: The first air inlet filter and the air outlet filter are located at both ends of the drying module and close to the same side of the drying module, and the air outlet filter is close to the air outlet buffer cavity; the second air inlet filter is located on the other side of the drying module and close to the middle of the drying module.

8. The drying device according to any one of claims 2 to 4, characterized in that: A regeneration gas discharge cylinder is provided at the regeneration gas discharge end of the drying module, and the regeneration gas discharge cylinder and the air intake buffer chamber are located at two ends of the adsorption cylinder and are arranged opposite to each other.

9. The drying device according to claim 8, characterized in that: A muffler is provided at the gas outlet of the regeneration gas discharge cylinder, and the muffler is located at the bottom of the adsorption cylinder.

10. An air compressor, characterized in that: The air compressor is equipped with the drying device described in any one of claims 1-9.

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