Exhaust pipe structure

Abstract

The utility model discloses an exhaust pipe structure which comprises an exhaust pipe body, the exhaust pipe body comprises a flared straight pipe and a connecting straight pipe which are connected with each other, the connecting straight pipe passes through an exhaust hole of a compressor and is arranged in a shell of the compressor, the flared straight pipe is arranged on the outer side of the shell of the compressor, and the inner diameter of the flared straight pipe is larger than that of the connecting straight pipe. The exhaust pipe structures with the diameters from small to large are formed through two types, the gas displacement is improved, the pipe body connected with the compressor is kept to be a straight pipe, and stable connection of the exhaust pipe structures and the compressor is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust pipes, and in particular relates to an exhaust pipe structure. Background Art

[0002] The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. An exhaust pipe is set on the compressor. The main uses of the exhaust pipe are as follows: 1. Discharge heat: The compressor compresses the gas into a high-temperature and high-pressure state, which contains a lot of heat energy. If it is not discharged through the exhaust pipe, the compressor will overheat and be damaged. The exhaust pipe discharges the high-temperature and high-pressure gas into the condenser, and dissipates the heat through the radiator, so that the gas is cooled into a liquid state, releasing huge heat. 3. Cooling gas: Another function of the exhaust pipe is to cool the gas. The gas discharged from the compressor is very hot, and it is sent to the condenser through the exhaust pipe for cooling, so that the gas is gradually cooled into a liquid state. 3. Provide power: The liquid gas discharged from the exhaust pipe will be sent to the evaporator, where the gas temperature and pressure will be reduced to create a cooling effect.

[0003] In the prior art, the exhaust pipe usually adopts a straight pipe with the same upper and lower diameters. The shape of the straight pipe is more compatible with the exhaust hole, which is conducive to the fixation of the straight pipe and the compressor housing. However, the straight pipe has a regular shape and the discharged gas is limited. The working principle of the compressor requires that the exhaust pipe can quickly discharge heat, otherwise the internal parts are prone to overheating and damage. Therefore, the utility model proposes an exhaust pipe structure. Utility Model Content

[0004] The utility model aims to solve the above technical problems existing in the prior art and provides an exhaust pipe structure. The exhaust pipe structure with diameters from small to large is formed by two pipe bodies to increase the exhaust volume.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An exhaust pipe structure includes an exhaust pipe body, wherein the exhaust pipe body includes an expanded straight pipe and a connecting straight pipe connected to each other, the connecting straight pipe passes through the exhaust hole of the compressor and is arranged in the shell of the compressor, and the expanded straight pipe is arranged outside the shell of the compressor, and the inner diameter of the expanded straight pipe is larger than the inner diameter of the connecting straight pipe.

[0007] Furthermore, a transition pipe is arranged between the flared straight pipe and the connecting straight pipe, the inner diameter of one end of the transition pipe is equal to the inner diameter of the flared straight pipe, the inner diameter of the other end of the transition pipe is equal to the inner diameter of the connecting straight pipe, and the middle of the transition pipe is an arc-shaped transition, so that a smooth transition is achieved between the flared straight pipe and the connecting straight pipe.

[0008] Furthermore, the flared straight pipe, the connecting straight pipe and the transition pipe are an integrated structure.

[0009] Furthermore, a connecting piece is provided at the end of the connecting straight pipe, and the connecting piece is connected to the expanded straight pipe through threads.

[0010] Furthermore, the connecting piece adopts a nut, the nut is provided with a screw hole, an extension plate is provided at one end of the screw hole, and the extension plate is fixed on the connecting straight pipe.

[0011] Furthermore, an expansion groove is provided along the edge of the screw hole at the other end portion of the screw hole, and the expansion groove is used for placing a sealing ring.

[0012] Furthermore, a welding ring is provided on the outer side of the connecting straight pipe, the welding ring is embedded in the exhaust hole, and the welding ring is used to be welded to the plate body around the exhaust hole.

[0013] Furthermore, the welding ring has a "T"-shaped structure, so that the welding ring is embedded in the exhaust hole.

[0014] Furthermore, a chamfer is provided at the end of the welding ring, and a welding opening is formed between the chamfer and the connecting straight pipe.

[0015] Furthermore, the connecting straight pipe includes a limiting tube, which is in the shape of a cone. The outer diameter of one end A of the limiting tube is larger than the outer diameter of the other end B. The outer diameter of end A exceeds the inner diameter of the welding ring by 0.2-0.5mm. When the welding ring moves from end B to end A, the welding ring cannot continue to move, so that the welding ring is limited at end A.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model includes an exhaust pipe body, which includes an expanded straight pipe and a connecting straight pipe connected to each other. The connecting straight pipe passes through the exhaust hole of the compressor and is arranged in the shell of the compressor. The expanded straight pipe is arranged outside the shell of the compressor, and the inner diameter of the expanded straight pipe is larger than the inner diameter of the connecting straight pipe. By forming an exhaust pipe structure with a diameter from small to large, the exhaust volume is increased. The utility model also retains the pipe body connected to the compressor as a straight pipe, ensuring that the exhaust pipe structure and the compressor are firmly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 This is the first embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0021] Figure 3 This is the second embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Sectional view at the middle BB;

[0023] Figure 5 This is a separation diagram of the flared straight pipe and the connected straight pipe in Example 2;

[0024] Figure 6 for Figure 4 The enlarged view of point a in the middle;

[0025] Figure 7 It is a schematic diagram of the structure of the connecting pipe in the second embodiment.

[0026] In the figure, 1- flared straight pipe; 2- transition pipe; 3- connecting straight pipe; 4- welding ring; 5- chamfer; 6- welding port; 7- limiting pipe; 8- extension plate; 9- extension slot; 10- screw hole; 11- threaded section; 12- connecting piece. DETAILED DESCRIPTION

[0027] like Figure 1 and Figure 2 As shown, it is the first embodiment of the utility model, an exhaust pipe structure, including an exhaust pipe body, the exhaust pipe body including an expanded straight pipe 1 and a connecting straight pipe 3 connected to each other, the connecting straight pipe 3 passes through the exhaust hole of the compressor and is arranged in the shell of the compressor, the expanded straight pipe 1 is arranged outside the shell of the compressor, and the inner diameter of the expanded straight pipe 1 is larger than the inner diameter of the connecting straight pipe 3. An exhaust pipe structure with a diameter from small to large is formed by two pipe bodies, and the exhaust volume is increased. The utility model also retains the pipe body connected to the compressor as a straight pipe, ensuring that the connection between the exhaust pipe structure and the compressor is stable.

[0028] A transition pipe 2 is arranged between the flared straight pipe 1 and the connecting straight pipe 3, the inner diameter of one end of the transition pipe 2 is equal to the inner diameter of the flared straight pipe 1, the inner diameter of the other end of the transition pipe 2 is equal to the inner diameter of the connecting straight pipe 3, and the middle of the transition pipe 2 is in an arc transition, so that the flared straight pipe 1 and the connecting straight pipe 3 have a smooth transition. The flared straight pipe 1, the connecting straight pipe 3 and the transition pipe 2 are in an integrated structure, and the transition pipe 2 can better receive pipes of two diameters. The integrated arrangement can not only strengthen the connection between the flared straight pipe 1, the transition pipe 2 and the connecting straight pipe 3, but also facilitate the manufacturer's manufacturing and production.

[0029] A welding ring 4 is provided on the outside of the connecting straight pipe 3. The welding ring 4 is in a "T"-shaped structure and is used to weld with the plate body around the exhaust hole. A chamfer 5 is provided at the end of the welding ring 4. A welding port 6 is formed between the chamfer 5 and the connecting straight pipe 3. Solder is filled into the welding port 6 to fix the connecting straight pipe 3 and the welding ring 4.

[0030] like Figures 3 to 7The second embodiment of the utility model is shown, an exhaust pipe structure, including an exhaust pipe body, the exhaust pipe body including an expanded straight pipe 1 and a connecting straight pipe 3 connected to each other, the connecting straight pipe 3 passes through the exhaust hole of the compressor and is arranged in the shell of the compressor, the expanded straight pipe 1 is arranged outside the shell of the compressor, and the inner diameter of the expanded straight pipe 1 is larger than the inner diameter of the connecting straight pipe 3. An exhaust pipe structure with a diameter from small to large is formed by two pipe bodies, and the exhaust volume is increased. The utility model also retains the pipe body connected to the compressor as a straight pipe, ensuring that the connection between the exhaust pipe structure and the compressor is stable.

[0031] The end of the connecting straight pipe 3 is provided with a connecting piece 12, the connecting piece 12 is a nut, the nut is provided with a screw hole 10, the flared straight pipe 1 is provided with a threaded section 11, the threaded section 11 is threadedly connected in the screw hole 10, and an expansion plate 8 is provided at one end of the screw hole 10, and the expansion plate 8 is fixed on the connecting straight pipe 3. The other end of the screw hole 10 is provided with an expansion groove 9 along the hole edge, and the expansion groove 9 is used to place a sealing ring to improve the sealing of the connection between the nut and the flared straight pipe 1.

[0032] A welding ring 4 is provided on the outside of the connecting straight pipe 3. The welding ring 4 is in a "T"-shaped structure and is used to weld with the plate body around the exhaust hole. A chamfer 5 is provided at the end of the welding ring 4. A welding port 6 is formed between the chamfer 5 and the connecting straight pipe 3. Solder is filled into the welding port 6 to fix the connecting straight pipe 3 and the welding ring 4.

[0033] The connecting straight pipe 3 includes a limiting tube 7, which is in a truncated cone shape. The outer diameter of one end A of the limiting tube 7 is larger than the outer diameter of the other end B. The outer diameter of the end A exceeds the inner diameter of the welding ring 4 by 0.2-0.5mm. When the welding ring 4 moves from the end B to the end A, the welding ring 4 cannot continue to move, so that the welding ring 4 is limited at the end A. There are certain requirements for the ratio of the length of the connecting pipe in the compressor housing and the length of the expanded straight pipe 1 outside the compressor housing, and the length from the welding ring 4 to the end of the connecting pipe is also the length of the connecting pipe in the compressor housing. In the prior art, since the welding ring 4 can move freely along the connecting pipe, the length is prone to errors and is difficult to control. Through the setting of the limiting tube 7, when the welding ring 4 moves to the end A where it cannot move, it is interference connected with the limiting tube 7, which can temporarily fix the welding ring 4 and ensure that the length from the welding ring to the end of the connecting pipe is basically the same. The limiting tube 7 is in a truncated cone shape and the tube wall is also inclined, which can expand the welding port 6 between the chamfer 5 and the limiting tube 7 to facilitate the injection of solder.

[0034] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. An exhaust pipe structure, comprising an exhaust pipe body, characterized in that: The exhaust pipe body includes an expanded straight pipe and a connecting straight pipe that are connected to each other. The connecting straight pipe passes through the exhaust hole of the compressor and is arranged in the shell of the compressor. The expanded straight pipe is arranged on the outside of the shell of the compressor. The inner diameter of the expanded straight pipe is larger than the inner diameter of the connecting straight pipe. A connecting piece is provided at the end of the connecting straight pipe. The connecting piece is connected to the expanded straight pipe by threads. The connecting piece adopts a nut. The nut is provided with a screw hole. An expansion plate is provided at one end of the screw hole. The expansion plate is fixed to the connecting straight pipe. An expansion groove is provided along the edge of the hole at the other end of the screw hole. The expansion groove is used to place a sealing ring.

2. An exhaust pipe structure according to claim 1, characterized in that: A transition pipe is arranged between the flared straight pipe and the connecting straight pipe, the inner diameter of one end of the transition pipe is equal to the inner diameter of the flared straight pipe, the inner diameter of the other end of the transition pipe is equal to the inner diameter of the connecting straight pipe, and the middle of the transition pipe is in an arc-shaped transition, so that there is a smooth transition between the flared straight pipe and the connecting straight pipe.

3. An exhaust pipe structure according to claim 2, characterized in that: The flared straight pipe, the connecting straight pipe and the transition pipe are in an integrated structure.

4. An exhaust pipe structure according to claim 1, characterized in that: A welding ring is provided on the outer side of the connecting straight pipe, and the welding ring is embedded in the exhaust hole. The welding ring is used for welding with the plate body around the exhaust hole.

5. An exhaust pipe structure according to claim 4, characterized in that: The welding ring is in a "T"-shaped structure, so that the welding ring is embedded in the exhaust hole.

6. An exhaust pipe structure according to claim 5, characterized in that: The end of the welding ring is provided with a chamfer, and a welding opening is formed between the chamfer and the connecting straight pipe.

7. An exhaust pipe structure according to claim 6, characterized in that: The connecting straight pipe includes a limiting tube, which is in a truncated cone shape. The outer diameter of one end A of the limiting tube is larger than the outer diameter of the other end B. The outer diameter of the end A exceeds the inner diameter of the welding ring by 0.2-0.5mm. When the welding ring moves from the end B to the end A, the welding ring cannot continue to move, so that the welding ring is limited at the end A.

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