Two-channel cooler for oil-free compressor

Abstract

The utility model discloses a two-channel cooler for an oilless compressor, which relates to the technical field of oilless compressors and comprises a cooler shell, a straight pipe and a spiral pipe are mounted in the cooler shell, round holes for mounting the straight pipe are formed in two ends of the cooler shell, one end of the straight pipe is connected with a primary air inlet pipe, and the other end of the straight pipe is connected with a secondary air inlet pipe. The other end of the straight pipe is connected with a first-stage air outlet pipe, the spiral pipe is wound on the outer side of the straight pipe and located in the cooler shell, the outer side of the cooler shell is connected with a second-stage air inlet pipe, and the second-stage air outlet pipe and the second-stage air inlet pipe are connected with one end of the spiral pipe. And the second-stage gas outlet pipe is connected with the other end of the spiral pipe. The problem that in the prior art, cooling water cools high-temperature gas in a pipeline, and due to the fact that the contact area of the cooling water and the pipeline is limited, the cooling effect is not ideal enough is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-free compressors, and particularly relates to a dual-channel cooler for an oil-free compressor. Background Art

[0002] The dual-channel cooler for an oil-free compressor is a device used to cool an oil-free compressor, which can reduce the working temperature of the oil-free compressor, extend the service life of the device, and improve its performance and efficiency.

[0003] When the cooler for an oil-free compressor in the prior art is in use, the air outlet pipe of the oil-free compressor is connected to the air inlet pipe of the cooler, and the high-temperature gas inside the oil-free compressor is introduced into the pipeline inside the cooler, and the cooling water cools the high-temperature gas in the pipeline.

[0004] The prior art has the following defects: when the cooling water cools the high-temperature gas in the pipeline, due to the limited contact area between the cooling water and the pipeline, the cooling effect is not ideal enough. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a dual-channel cooler for an oil-free compressor, which solves the problem that in the prior art, when the cooling water cools the high-temperature gas in the pipeline, due to the limited contact area between the cooling water and the pipeline, the cooling effect is not ideal enough.

[0006] To achieve the above object, according to an embodiment of the first aspect of the utility model, a dual-channel cooler for an oil-free compressor is provided, including: a cooler housing, a straight pipe and a spiral pipe are installed inside the cooler housing, circular holes for installing the straight pipe are opened at both ends of the cooler housing, one end of the straight pipe is connected with a primary air inlet pipe, the other end of the straight pipe is connected with a primary air outlet pipe, the spiral pipe is wound around the outside of the straight pipe, the spiral pipe is inside the cooler housing, a secondary air inlet pipe and a secondary air outlet pipe are connected to the outside of the cooler housing, the secondary air inlet pipe is connected with one end of the spiral pipe, and the secondary air outlet pipe is connected with the other end of the spiral pipe.

[0007] As a further scheme of the utility model: the inside of the cooler housing is hollow, the straight pipe passes through the circular hole, and both ends of the straight pipe extend to the outside, and a sealing ring is arranged between the outside of the straight pipe and the circular hole.

[0008] As a further scheme of the utility model: the secondary air inlet pipe is connected to the outside of the cooler housing and close to one end, the secondary air inlet pipe extends into the inside of the cooler housing, the secondary air outlet pipe is connected to the outside of the cooler housing and close to the other end, and the secondary air outlet pipe extends into the inside of the cooler housing.

[0009] As a further solution of the present utility model: a water inlet pipe and a drain pipe are connected to the outer side of the cooler housing.

[0010] As a further solution of the present utility model: the cooler housing includes an upper housing and a lower housing. At the bottom end of the upper housing, clamping blocks are symmetrically and fixedly connected. At the top end of the lower housing, clamping grooves are symmetrically opened. The clamping blocks are adapted to the clamping grooves. At the upper end of the upper housing, handles are symmetrically and fixedly connected. The handles are in an "L" shape. At the bottom end of the lower housing, a handle groove is opened.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Cooling water is introduced into the inside of the cooler housing in advance. Connect the air outlet pipe of the oil-free compressor to the first-stage air inlet pipe, and connect the air inlet pipe of the oil-free compressor to the first-stage air outlet pipe. Connect the other air outlet pipe of the oil-free compressor to the second-stage air inlet pipe, and connect the other air inlet pipe of the oil-free compressor to the second-stage air outlet pipe. During the operation of the oil-free compressor, a part of the high-temperature gas generated enters the spiral pipe through the second-stage air inlet pipe, is cooled by the cooling water inside the cooler housing, and is sent back to the oil-free compressor through the second-stage air outlet pipe. Another part of the high-temperature gas enters the straight pipe through the first-stage air inlet pipe, is cooled by the cooling water inside the cooler housing, and is sent back to the oil-free compressor through the first-stage air outlet pipe. By setting two heat exchange paths for cooling, one path is a straight straight pipe, and the other path is a spiral pipe wound around the straight pipe. The spiral winding design of the spiral pipe can make the high-temperature gas form a spiral flow inside the solenoid pipe, improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic internal structure diagram of the present utility model;

[0014] Figure 2 is a schematic structure diagram of the present utility model;

[0015] Figure 3 is a side cross-sectional view of the present utility model.

[0016] In the figure: 1. cooler housing; 101. upper housing; 102. lower housing; 103. handle; 104. handle groove; 2. spiral pipe; 3. second-stage air inlet pipe; 4. second-stage air outlet pipe; 5. straight pipe; 6. first-stage air inlet pipe; 7. first-stage air outlet pipe; 8. water inlet pipe; 9. drain pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0018] As Figures 1-3 shown, a double-channel cooler for an oil-free compressor includes: a cooler housing 1, and a straight pipe 5 and a spiral pipe 2 are installed inside the cooler housing 1.

[0019] The inside of the cooler housing 1 is hollowly arranged. Circular holes for installing the straight pipe 5 are opened at both ends of the cooler housing 1. The straight pipe 5 passes through the circular holes, and both ends of the straight pipe 5 extend to the outside. A sealing ring is arranged between the outer side of the straight pipe 5 and the circular hole, and the sealing ring is used to prevent water leakage.

[0020] One end of the straight pipe 5 is connected to a primary intake pipe 6, and the other end of the straight pipe 5 is connected to a primary outlet pipe 7.

[0021] The spiral pipe 2 is wound around the outer side of the straight pipe 5. The spiral pipe 2 is inside the cooler housing 1. A secondary intake pipe 3 is connected to the outside of the cooler housing 1 and near one end. The secondary intake pipe 3 extends into the inside of the cooler housing 1 and is connected to one end of the spiral pipe 2. A secondary outlet pipe 4 is connected to the outside of the cooler housing 1 and near the other end. The secondary outlet pipe 4 extends into the inside of the cooler housing 1 and is connected to the other end of the spiral pipe 2.

[0022] Cooling water is introduced into the inside of the cooler housing 1 in advance. The outlet pipe of the oil-free compressor is connected to the primary intake pipe 6, and the intake pipe of the oil-free compressor is connected to the primary outlet pipe 7. Another outlet pipe of the oil-free compressor is connected to the secondary intake pipe 3, and another intake pipe of the oil-free compressor is connected to the secondary outlet pipe 4; during the operation of the oil-free compressor, a part of the high-temperature gas generated enters the spiral pipe 2 through the secondary intake pipe 3, is cooled by the cooling water inside the cooler housing 1 and is sent back to the oil-free compressor through the secondary outlet pipe 4, and another part of the high-temperature gas enters the straight pipe 5 through the primary intake pipe 6, is cooled by the cooling water inside the cooler housing 1 and is sent back to the oil-free compressor through the primary outlet pipe 7.

[0023] A water inlet pipe 8 and a drain pipe 9 are connected to the outside of the cooler housing 1. Cooling water is introduced into the inside of the cooler housing 1 through the water inlet pipe 8, and the used cooling water is discharged through the drain pipe 9.

[0024] After the cooler is used for a long time, there will be scale inside the cooler housing 1. In order to facilitate the cleaning of the inside of the cooler housing 1: the cooler housing 1 includes an upper housing 101 and a lower housing 102. Blocks are symmetrically and fixedly connected to the bottom end of the upper housing 101. Slots are symmetrically opened at the top end of the lower housing 102. The blocks are adapted to the slots, and the blocks can be clamped with the slots to fix the upper housing 101 and the lower housing 102.

[0025] For the convenience of disassembling the upper housing 101 and the lower housing 102: symmetrically fixed to the upper end of the upper housing 101 is a handle 103, the handle 103 is in an "L" shape, and a finger groove 104 is provided at the bottom end of the lower housing 102.

[0026] When it is necessary to disassemble the upper housing 101 and the lower housing 102, hold the handle 103 with one hand, insert the fingers of the other hand into the finger groove 104, and pull the handle 103 upward with force. The latch of the upper housing 101 will disengage from the card slot of the lower housing 102, and then the cleaning work can be carried out.

[0027] Working principle:

[0028] Cooling water is introduced into the interior of the cooler housing 1 in advance. Connect the outlet pipe of the oil-free compressor to the first-stage inlet pipe 6, and connect the inlet pipe of the oil-free compressor to the first-stage outlet pipe 7. Connect another outlet pipe of the oil-free compressor to the second-stage inlet pipe 3, and connect another inlet pipe of the oil-free compressor to the second-stage outlet pipe 4. During the operation of the oil-free compressor, a part of the high-temperature gas generated enters the spiral pipe 2 through the second-stage inlet pipe 3, is cooled by the cooling water inside the cooler housing 1, and is sent back to the oil-free compressor through the second-stage outlet pipe 4. Another part of the high-temperature gas enters the straight pipe 5 through the first-stage inlet pipe 6, is cooled by the cooling water inside the cooler housing 1, and is sent back to the oil-free compressor through the first-stage outlet pipe 7.

[0029] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A dual-pass cooler for an oil-free compressor, characterized in that: include: A cooler shell (1), wherein a straight tube (5) and a spiral tube (2) are installed inside the cooler shell (1), and circular holes for installing the straight tube (5) are provided at both ends of the cooler shell (1), one end of the straight tube (5) is connected to a primary air inlet pipe (6), and the other end of the straight tube (5) is connected to a primary air outlet pipe (7), the spiral tube (2) is wound around the outside of the straight tube (5), the spiral tube (2) is inside the cooler shell (1), and the outside of the cooler shell (1) is connected to a secondary air inlet pipe (3) and a secondary air outlet pipe (4), the secondary air inlet pipe (3) is connected to one end of the spiral tube (2), and the secondary air outlet pipe (4) is connected to the other end of the spiral tube (2); The interior of the cooler shell (1) is hollow, the straight tube (5) passes through the circular hole, and both ends of the straight tube (5) extend to the outside, and a sealing ring is provided between the outer side of the straight tube (5) and the circular hole; The outer side of the cooler housing (1) is connected to a water inlet pipe (8) and a drain pipe (9).

2. A dual-pass cooler for an oil-free compressor according to claim 1, characterized in that: A secondary air inlet pipe (3) is connected to the outside of the cooler shell (1) and close to one end thereof, and the secondary air inlet pipe (3) extends into the interior of the cooler shell (1). A secondary air outlet pipe (4) is connected to the outside of the cooler shell (1) and close to the other end thereof, and the secondary air outlet pipe (4) extends into the interior of the cooler shell (1).

3. The dual-pass cooler for an oil-free compressor according to claim 1, characterized in that: The cooler shell (1) comprises an upper shell (101) and a lower shell (102); a clamping block is symmetrically fixedly connected to the bottom end of the upper shell (101); a clamping slot is symmetrically provided at the top end of the lower shell (102); the clamping block is adapted to fit the clamping slot; a handle (103) is symmetrically fixedly connected to the top end of the upper shell (101); the handle (103) is in an "L" shape; and a hand buckle slot (104) is provided at the bottom end of the lower shell (102).

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