Waste heat utilization device of air compressor

Abstract

The utility model provides a waste heat utilization device of an air compressor, which belongs to the technical field of waste heat utilization equipment of the air compressor, and comprises a spiral heat exchange pipe arranged in a waste heat recovery tank along the left-right direction, a cold water pipeline communicated with one side of the waste heat recovery tank, and a dosing pipeline arranged on the adjacent side of the cold water pipeline, a first aeration pipe is arranged on the inner spiral face of the pipe wall of the spiral heat exchange pipe, a plurality of second aeration pipes are arranged on the outer spiral face of the pipe wall of the spiral heat exchange pipe, a plurality of first air outlets are formed in the peripheral face of each first aeration pipe, and a plurality of second air outlets are formed in the face, close to the spiral heat exchange pipe, of each second aeration pipe. Water is injected through the cold water pipeline, incrustation cleaning liquid is injected through the dosing pipeline, the first aeration pipe is started to clean incrustation on the inner spiral wall of the spiral heat exchange pipe, the second aeration pipe is started to clean incrustation on the outer spiral wall of the spiral heat exchange pipe, and then multi-angle cleaning of the spiral heat exchange pipe is achieved. Therefore, the heat exchange effect of the spiral heat exchange pipe on cold water is stabilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor waste heat utilization equipment technical field, concretely relates to a waste heat utilization device of air compressor. BACKGROUND

[0002] Air compressor generally refers to air compressor, and the air compressor is a kind of equipment to compress gas. Large air compressor used in some factories is prone to generate a large amount of waste heat in working process, and it influences environment, and also causes waste heat to be wasted, so waste heat recovery device is needed to complete waste heat recovery and utilization work.

[0003] The utility model discloses an air compressor waste heat utilization device, which belongs to the technical field of air compressors, and comprises an air compressor body, a waste heat recovery tank, a cold water tank for containing cooling water, and a hot water tank for containing hot water.

[0004] Although the above scheme has the advantages as above, the outer surface of the spiral heat exchange pipe installed in the waste heat recovery tank will be attached with a large amount of scale after long-term use, which will affect the heating effect of the spiral heat exchange pipe on the cold water, and further affect the heat exchange effect of the hot oil in the spiral heat exchange pipe, thereby reducing the waste heat recovery effect of the device. Utility model content

[0005] Therefore, the utility model provides a waste heat utilization device of air compressor to solve the above problems.

[0006] To solve the above technical problems, the utility model provides a kind of waste heat utilization device of air compressor, including the spiral heat exchange pipe being set in left and right direction in waste heat recovery tank, the support being set in the edge of waste heat recovery tank bottom, the cold water pipeline being set in the communication of one side of waste heat recovery tank, cold water pipeline side setting has dosing pipeline, waste heat recovery tank's bottom is connected and is provided with hot water pipeline, the inner spiral surface of the tube wall of spiral heat exchange pipe is provided with first aeration pipe, the outer spiral surface of the tube wall of spiral heat exchange pipe is provided with multiple second aeration pipes, the periphery of first aeration pipe is provided with multiple first gas outlets, the side of second aeration pipe close to spiral heat exchange pipe is provided with multiple second gas outlets.

[0007] The one end of first aeration pipe is provided with positioning block, and the positioning block is used for fixing the one end of first aeration pipe, and the positioning block is fixed with the inner wall of waste heat recovery tank, and the other end of first aeration pipe is provided with connecting bin, and the connecting bin is used for fixing the other end of first aeration pipe, and the connecting bin is designed as hollow, and the connecting bin is also used for connecting first aeration pipe and first gas supply pipe, and one first gas supply pipe is arranged through the inner wall of waste heat recovery tank on one side of connecting bin, and the first gas supply pipe is used for supplying compressed gas to first aeration pipe.

[0008] The one end of multiple second aeration pipes is provided with first communication bin, and the first communication bin is used for fixing the one end of second aeration pipe, and the first communication bin is fixed with the inner wall of waste heat recovery tank, and the one end of multiple second aeration pipes is communicated with first communication bin, and the first communication bin is also used for connecting multiple second aeration pipes in parallel, so that the compressed gas flowing through multiple second aeration pipes can be used together.

[0009] The other end of multiple second aeration pipes is provided with second communication bin, and the second communication bin is used for fixing the other end of second aeration pipe, and the second communication bin is fixed with the inner wall of waste heat recovery tank, and one second gas supply pipe is arranged through the inner wall of waste heat recovery tank on one side of second communication bin, and the size of second communication bin is the same as that of first communication bin, and the second communication bin is used for connecting second aeration pipe and second gas supply pipe, and the second gas supply pipe is used for supplying compressed gas to multiple second aeration pipes.

[0010] The air inlet end of first gas supply pipe is provided with first compressor, and the first compressor is used for supplying compressed gas to first gas supply pipe, and the air inlet end of second gas supply pipe is provided with second compressor, and the second compressor is used for supplying compressed gas to second gas supply pipe.

[0011] The side of each first aeration pipe away from first gas outlet is provided with multiple positioning rods, and the positioning rods are used for strengthening the fixation of second aeration pipe, and the positioning rods are fixed with the inner wall of waste heat recovery tank.

[0012] The outer wall top of the waste heat recovery tank is provided with a pair of lifting lugs for facilitating the transfer of the waste heat recovery tank, one side of the waste heat recovery tank is provided with a liquid level meter for observing the liquid level height in the waste heat recovery tank, and the side of the lifting lug is provided with a thermometer for detecting the temperature of the cold water after heat exchange in the waste heat recovery tank.

[0013] Compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0014] 1. The first compressor is used for supplying compressed gas to the first gas supply pipe, so that the first aeration pipe can flush the scale on the inner spiral wall of the spiral heat exchange pipe; the second compressor is used for supplying compressed gas to the second gas supply pipe, so that the second aeration pipe can flush the scale on the outer spiral wall of the spiral heat exchange pipe, thereby realizing multi-angle cleaning of the spiral heat exchange pipe, and stabilizing the heat exchange effect of the spiral heat exchange pipe on cold water.

[0015] 2. Cold water is supplied to the waste heat recovery tank through the cold water pipeline, and hot oil passes through the waste heat recovery tank through the spiral heat exchange pipe, and the energy released by the spiral heat exchange pipe is absorbed by the cold water, so that the cold water becomes hot water, thereby achieving the heat exchange effect, and finally the heated hot water is discharged through the hot water pipeline for use.

[0016] 3. Cold water is supplied to the waste heat recovery tank through the cold water pipeline, and scale cleaning liquid is supplied to the waste heat recovery tank through the dosing pipeline, and when mixed, the scale on the spiral heat exchange pipe is cleaned, thereby improving the scale cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the main structure of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is a schematic view of the assembly structure of the utility model;

[0020] Figure 4 It is a top view of the utility model.

[0021] Explanation of reference signs: 100, waste heat recovery tank; 101, spiral heat exchange pipe; 102, support; 103, cold water pipeline; 104, dosing pipeline; 105, hot water pipeline; 200, first aeration pipe; 201, second aeration pipe; 202, first air outlet; 203, second air outlet; 204, positioning block; 205, connecting bin; 206, first gas supply pipe; 207, first communication bin; 208, second communication bin; 209, second gas supply pipe; 210, positioning rod; 300, first compressor; 301, second compressor; 400, lifting lug; 401, liquid level meter; 402, temperature meter. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the following will combine the drawings of the embodiments of the present application to make a detailed description. Figures 1-4 The technical scheme of the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0023] As Figures 1-4The embodiment provides a waste heat utilization device of an air compressor, which comprises a spiral heat exchange pipe 101 arranged in a left-right direction in a waste heat recovery tank 100, the spiral heat exchange pipe 101 is used for flowing hot oil and hot gas, the spiral heat exchange pipe 101 comprises an inlet end and an outlet end, a support 102 is arranged at the bottom edge of the waste heat recovery tank 100, a drain pipe is arranged in communication with the inner side of the bottom of the waste heat recovery tank 100 close to the support 102, the support 102 is made of stainless steel, a U-shaped groove is arranged at the top of the support 102 and used for supporting the waste heat recovery tank 100, a cold water pipeline 103 is arranged in communication with one side of the waste heat recovery tank 100, the cold water pipeline 103 is welded in communication with the waste heat recovery tank 100, a water supply pump and a cold water storage tank are arranged at the rear end of the cold water pipeline 103 and used for supplying cold water into the waste heat recovery tank 100, a dosing pipeline 104 is arranged at the side of the cold water pipeline 103, the dosing pipeline 104 is welded in communication with the waste heat recovery tank 100, a metering pump and a water scale cleaning agent tank are arranged at the rear end of the dosing pipeline 104 and used for supplying a water scale cleaning agent into the waste heat recovery tank 100, the water scale cleaning agent can be edible, for example, -water citric acid, a hot water pipeline 105 is arranged in communication with the bottom of the waste heat recovery tank 100, the hot water pipeline 105 is used for flowing cold water after heat exchange of the spiral heat exchange pipe 101, a first aeration pipe 200 is arranged on the inner spiral surface of the pipe wall of the spiral heat exchange pipe 101, the pipe diameter of the first aeration pipe 200 is greater than that of a second aeration pipe 201, a plurality of second aeration pipes 201 are arranged on the outer spiral surface of the pipe wall of the spiral heat exchange pipe 101, a plurality of first gas outlets 202 are arranged on the periphery of the first aeration pipe 200, a plurality of second gas outlets 203 are arranged on the side of the second aeration pipe 201 close to the spiral heat exchange pipe 101, the first gas outlet 202 and the second gas outlet 203 are consistent in size, an inner thread and a check valve are arranged in the gas guide hole at the front end of the pipe body of the first aeration pipe 200 and the second aeration pipe 201, so as to control the flow direction of the gas and prevent the water in the waste heat recovery tank 100 from flowing back.

[0024] In use, water is injected through the cold water pipeline 103, the water scale cleaning agent is injected through the dosing pipeline 104, the first aeration pipe 200 is started, the water scale on the inner spiral wall of the spiral heat exchange pipe 101 is cleaned through the first gas outlet 202, the second aeration pipe 201 is started, the water scale on the outer spiral wall of the spiral heat exchange pipe 101 is cleaned through the second gas outlet 203, and then the spiral heat exchange pipe 101 is cleaned at multiple angles, so that the heating effect of the spiral heat exchange pipe 101 on the cold water is stabilized, the heat exchange effect of the hot oil in the spiral heat exchange pipe 101 is stabilized, and the waste heat recovery effect of the device is stabilized.

[0025] The embodiment provides a waste heat utilization device of an air compressor,

[0026] As Figure 1 , 2As shown in Figure 3: A positioning block 204 is provided at one end of the first aeration pipe 200. The positioning block 204 can be welded to the first aeration pipe 200. The positioning block 204 is used to fix one end of the first aeration pipe 200. The positioning block 204 is fixed to the inner wall of the waste heat recovery tank 100. A connecting chamber 205 is provided at the other end of the first aeration pipe 200. The connecting chamber 205 is welded to the first aeration pipe 200. The connecting chamber 205 is used to fix the other end of the first aeration pipe 200. The connecting chamber 205 is hollow. The connecting chamber 205 is also used to connect the first aeration pipe 200 and the first air supply pipe 206. A first air supply pipe 206 is provided through the inner wall of the waste heat recovery tank 100 on one side of the connecting chamber 205. The connecting chamber 205 and the first air supply pipe 206 can be connected by a flange seal or by a thread seal.

[0027] Its effect is as follows: the positioning block 204 and the connecting chamber 205 are used to fix the front and rear ends of the first aeration pipe 200, the connecting chamber 205 is used to connect the first aeration pipe 200 and the first air supply pipe 206, and the first air supply pipe 206 is used to supply compressed gas to the first aeration pipe 200.

[0028] like Figure 1 , 2 As shown in Figure 3: One end of each of the multiple second aeration pipes 201 is provided with a first connecting chamber 207. The first connecting chamber 207 is welded to the second aeration pipe 201 and is used to fix one end of the second aeration pipe 201. The first connecting chamber 207 is welded to the inner wall of the waste heat recovery tank 100 and is connected to one end of the multiple second aeration pipes 201.

[0029] Its effect is that the first connecting chamber 207 is also used to connect multiple second aeration pipes 201 in parallel, so that the compressed gas flowing through them can be used together.

[0030] like Figure 1 , 2 As shown in Figure 3: The other end of the multiple second aeration pipes 201 is provided with a second connecting chamber 208. The second connecting chamber 208 is welded and fixed to the inner wall of the waste heat recovery tank 100. The second connecting chamber 208 is used to fix the other end of the second aeration pipe 201. The second connecting chamber 208 is welded and connected to the second aeration pipe 201. The second connecting chamber 208 is fixed to the inner wall of the waste heat recovery tank 100. One side of the second connecting chamber 208 penetrates the inner wall of the waste heat recovery tank 100 and is provided with a second air supply pipe 209. The second air supply pipe 209 and the second connecting chamber 208 can be fixed by flange sealing or by threaded connection. The second connecting chamber 208 has the same size as the first connecting chamber 207.

[0031] The effect is that the second communication bin 208 is used for communication between the second aeration pipe 201 and the second gas supply pipe 209, the second gas supply pipe 209 is used for supplying compressed gas to the plurality of second aeration pipes 201, and the second gas supply pipe 209 is used for supplying compressed air to the second communication bin 208.

[0032] As shown in Figure 1 、 2 , 3: the first gas supply pipe 206 is provided with a first compressor 300 for supplying compressed gas to the first gas supply pipe 206, the second gas supply pipe 209 is provided with a second compressor 301 for supplying compressed gas to the second gas supply pipe 209, the first gas supply pipe 206 is provided with a first compressor 300 for supplying compressed gas to the first gas supply pipe 206, the gas outlet end of the first compressor 300 is connected with the gas inlet end of the first gas supply pipe 206 through flange or thread, the second gas supply pipe 209 is provided with a second compressor 301 for supplying compressed gas to the second gas supply pipe 209, the gas outlet end of the second compressor 301 is connected with the gas inlet end of the second gas supply pipe 209 through flange or thread, the first compressor 300 and the second compressor 301 are small air compressors, such as: MZb Cheetah oil-free light air compressor, wind leopard low pitch oil-free air compressor, each first aeration pipe 200 is provided with a plurality of positioning rods 210 on the side away from the first gas outlet 202, the positioning rods 210 are used for reinforcing the fixation of the second aeration pipe 201, the positioning rods 210 are welded and fixed with the inner wall of the waste heat recovery tank 100, and the positioning rods 210 and the second aeration pipe 201 can be welded and fixed.

[0033] The effect is that the first compressor 300 is used for supplying compressed gas to the first gas supply pipe 206, so that the first aeration pipe 200 can flush the scale on the inner spiral wall of the spiral heat exchange pipe 101, the second compressor 301 is used for supplying compressed gas to the second gas supply pipe 209, so that the second aeration pipe 201 can flush the scale on the outer spiral wall of the spiral heat exchange pipe 101, and the positioning rod 210 is used for reinforcing the fixation of the second aeration pipe 201.

[0034] As shown in Figure 1 、 4As shown: a pair of lug 400 is arranged on the top of the outer wall of the waste heat recovery tank 100, the lug 400 is welded and fixed with the top wall of the waste heat recovery tank 100, the lug 400 is used for conveniently transporting the waste heat recovery tank 100, one side of the waste heat recovery tank 100 is provided with a liquid level meter 401, the liquid level meter 401 can adopt a glass liquid level meter 401 and is connected with the waste heat recovery tank 100 through a thread, the liquid level meter 401 can also adopt a magnetic liquid level meter 401, the liquid level meter 401 is used for observing the liquid level height in the waste heat recovery tank 100, the temperature table 402 is arranged on the side of the lug 400, the temperature table 402 is communicated with the top wall of the waste heat recovery tank 100 through a threaded pipe, and the temperature table 402 is used for detecting the temperature of the cold water in the waste heat recovery tank 100 after heat exchange.

[0035] The effect is that the lug 400 is used for conveniently transporting the waste heat recovery tank 100, the liquid level meter 401 is used for observing the liquid level height in the waste heat recovery tank 100, and the liquid level height of hot water can be observed in combination with the thermometer to calculate the volume of heat exchange hot water.

[0036] Working principle: cold water is supplemented into the waste heat recovery tank 100 through the cold water pipeline 103, hot oil passes through the waste heat recovery tank 100 through the spiral heat exchange pipe 101, the energy released by the spiral heat exchange pipe 101 is absorbed by the cold water, so that the cold water becomes hot water, so that the heat exchange effect is achieved, finally the heated hot water is discharged through the hot water pipeline 105 for utilization, when it is necessary to clean the scale on the spiral heat exchange pipe 101, water is injected through the cold water pipeline 103, the scale cleaning liquid is injected through the dosing pipeline 104, the first compressor 300 is started again to make the first gas supply pipe 206 supply gas to the first aeration pipe 200, and then the first gas outlet 202 is used for cleaning the scale on the spiral wall in the spiral heat exchange pipe 101, the second compressor 301 is started to make the second gas supply pipe 209 supply gas to the second communication bin 208, and then flow into the plurality of second aeration pipes 201, and the second gas outlet 203 is used for cleaning the scale on the outer spiral wall of the spiral heat exchange pipe 101, and then the multi-angle cleaning of the spiral heat exchange pipe 101 is realized, so that the heating effect of the spiral heat exchange pipe 101 on the cold water is stabilized, the heat exchange effect of the hot oil in the spiral heat exchange pipe 101 is stabilized, and the waste heat recovery effect of the device is stabilized.

[0037] In addition, it also needs to be explained that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the ordinary in the art, without departing from the principles described in the present application, can be made several improvements and refinements, these improvements and refinements should also be considered as the scope of protection of the present application.

Claims

1. A waste heat utilization device of an air compressor, comprising a spiral heat exchange pipe (101) arranged in a left-right direction in a waste heat recovery tank (100), a support (102) arranged at a bottom edge of the waste heat recovery tank (100), and a cold water pipeline (103) arranged in communication with one side of the waste heat recovery tank (100), characterized in that: The cold water pipeline (103) is provided with a dosing pipeline (104) on the side, the bottom of the waste heat recovery tank (100) is provided with a hot water pipeline (105), the inner spiral surface of the wall of the spiral heat exchange pipe (101) is provided with a first aeration pipe (200), the outer spiral surface of the wall of the spiral heat exchange pipe (101) is provided with a plurality of second aeration pipes (201), the peripheral surface of the first aeration pipe (200) is provided with a plurality of first air outlets (202), and the side of the second aeration pipe (201) close to the spiral heat exchange pipe (101) is provided with a plurality of second air outlets (203).

2. The waste heat utilization device of an air compressor according to claim 1, characterized in that: One end of the first aeration pipe (200) is provided with a positioning block (204), the positioning block (204) is fixed to the inner wall of the waste heat recovery tank (100), the other end of the first aeration pipe (200) is provided with a connecting bin (205), the connecting bin (205) is designed to be hollow, and one side of the connecting bin (205) penetrates the inner wall of the waste heat recovery tank (100) and is provided with a first gas supply pipe (206).

3. The waste heat utilization device of claim 2, wherein: One end of the plurality of second aeration pipes (201) is provided with a first communication bin (207), the first communication bin (207) is fixed to the inner wall of the waste heat recovery tank (100), and the first communication bin (207) is in communication with one end of the plurality of second aeration pipes (201).

4. The waste heat utilization device of claim 3, wherein: The other end of the plurality of second aeration pipes (201) is provided with a second communication bin (208), the second communication bin (208) is fixed to the inner wall of the waste heat recovery tank (100), and one side of the second communication bin (208) penetrates the inner wall of the waste heat recovery tank (100) and is provided with a second gas supply pipe (209).

5. The waste heat utilization device of claim 4, wherein: the air compressor is a screw type air compressor. The first gas supply pipe (206) is provided with a first compressor (300) at the gas inlet end, and the second gas supply pipe (209) is provided with a second compressor (301) at the gas inlet end.

6. The waste heat utilization device of claim 5, wherein: One side of each first aeration pipe (200) away from the first air outlet (202) is provided with a plurality of positioning rods (210), and the positioning rods (210) are fixed to the inner wall of the waste heat recovery tank (100).

7. The waste heat utilization device of claim 6, wherein: A pair of lifting lugs (400) are arranged on the top of the outer wall of the waste heat recovery tank (100), a liquid level meter (401) is arranged on one side of the waste heat recovery tank (100), and a temperature table (402) is arranged on the side of the lifting lug (400).

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