A compressed air condensate water recovery device for a condensing device

Abstract

The present application relates to a compressed air condensate recovery device for a condensing device, which comprises: a fixed pipe, which is used to be installed at one end of an air outlet of a shell and tube heat exchanger, and flanges are provided at both ends of the fixed pipe; a drain pipe, which is arranged in the fixed pipe, the drain pipe runs through the fixed pipe, and a water inlet and a drain outlet are respectively provided at both ends of the drain pipe, the water inlet is located in a head of the shell and tube heat exchanger close to one end of the air outlet, and the drain outlet is located outside the drain pipe; a first valve is arranged on the drain outlet; the present application can discharge the stored water in the head to the outside through the drain pipe, so as to avoid the accumulation of condensate in the head, which will reduce the flow rate of compressed air and affect the flow efficiency of compressed air, thereby ensuring the use effect of compressed air, and at the same time, the condensate can be collected for recycling during factory operation, and the device does not need to change the structure of the heat exchanger itself when in use, and has strong practicality.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a compressed air condensate water recovery device for a condensing device. Background Art

[0002] An air compressor is a machine that compresses air into high-pressure gas. Its working principle is to use a compressor to compress the air into a gas tank, and then transport it to the required equipment through a pipeline and release the gas. Since the air compressor will generate a certain amount of heat when compressing the gas, in order to avoid the air compressor from pumping out overheated gas and causing machine failure or manufacturing process problems, a shell and tube heat exchanger is generally connected at the outlet of the air compressor to cool the compressed gas to a suitable temperature through the shell and tube heat exchanger for use by the required equipment.

[0003] In the related art, the shell and tube heat exchanger is also called the tube-in-shell heat exchanger, which is mainly composed of a shell, a tube bundle, a tube sheet and a head. When in use, the compressed air is made to flow inside the tube bundle, and cold water is added to the shell at the same time, so that the compressed air in the tube bundle can be cooled by the cold water. However, in actual use, the hot air blown out by the air compressor is cooled in the heat exchanger tube bundle. The water vapor in the compressed air will be liquefied into water droplets when it is cooled and accumulate in the tube bundle. Then the liquefied water will enter the required equipment along with the compressed air. In this way, the condensed water entering the required equipment can easily affect the equipment and the manufacturing process. Therefore, general manufacturers will install a steam trap between the heat exchanger and the required equipment to remove the condensed water mixed in the compressed air through the steam trap.

[0004] However, in the actual operation process, although the steam trap can separate the condensed water in the compressed gas, some condensed water will accumulate in the head at the outlet end of the heat exchanger after flowing out of the heat exchanger tube bundle, which will cause water to accumulate in the head. Although the water in the head will flow outward with the compressed air, the amount of water in the head will increase with the continuous operation of the heat exchanger. In this way, when the condensed water flows with the compressed air, the condensed water will occupy the space inside the delivery pipe, thereby reducing the space inside the delivery pipe, which will affect the flow efficiency of the air, and then affect the flow rate of the compressed air, which will affect the use effect of the compressed air, which is very inconvenient.

[0005] In view of the above problems, a compressed air condensate water recovery device of a condensing device is now designed. Utility Model Content

[0006] The embodiment of the present application provides a compressed air condensate recovery device of a condensing device to solve the problem in the related art that when the compressed gas is cooled through a shell and tube heat exchanger, condensate will accumulate in the heat exchanger head, which will easily affect the flow rate of the compressed air and affect the use effect of the compressed air.

[0007] In a first aspect, a compressed air condensate water recovery device of a condensing device is provided, comprising:

[0008] A fixed pipe, which is used to be installed at one end of the air outlet of the shell and tube heat exchanger, and flanges are provided at both ends of the fixed pipe;

[0009] A drain pipe is arranged in the fixed pipe, the drain pipe runs through the fixed pipe, and two ends of the drain pipe are respectively provided with a water inlet and a drain outlet, the water inlet is located in the end cap of the shell and tube heat exchanger close to the air outlet, and the drain outlet is located outside the drain pipe;

[0010] The first valve is arranged on the drain outlet.

[0011] In some embodiments, the height of the plane where the water inlet is located is higher than the height of the plane where the water outlet is located.

[0012] In some embodiments, the drain pipe includes a straight section and an inclined section, the straight section is located in the fixed pipe, and the inclined section is located in the head of the shell and tube heat exchanger close to the air outlet. The height of the plane where the inclined section is located decreases as the distance between the straight section and the inclined section increases, and the connection between the straight section and the inclined section is treated with an arc transition.

[0013] In some embodiments, the drain pipe is formed by bending in one piece.

[0014] In some embodiments, a connecting pipe is provided at one end of the first valve away from the drain pipe, and a second valve is provided at one end of the connecting pipe away from the first valve.

[0015] The embodiment of the present application provides a compressed air condensate water recovery device for a condensing device. The present application installs a drain pipe into the head of the air outlet of the shell and tube heat exchanger, so that the stored water in the head can be discharged outwardly through the drain pipe, thereby preventing the condensed water from accumulating in the head and corroding the heat exchanger, thereby affecting the service life of the heat exchanger. At the same time, it can also prevent a large amount of stored water from reducing the flow rate of the compressed air and affecting the flow efficiency of the compressed air, thereby ensuring the use effect of the compressed air. The stored water can also be collected after being discharged for recycling during factory operations, thereby reducing production costs and being more environmentally friendly. The device has a simple structure and is easy to disassemble and assemble. There is no need to change the structure of the heat exchanger itself when using it. It has a low cost, is easy to maintain, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the installation structure provided in the embodiment of the present application;

[0019] Figure 3 Provided in the embodiments of this application Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1, fixed pipe; 11, flange; 2, drain pipe; 21, straight section; 22, inclined section; 201, water inlet; 202, drain outlet; 3, first valve; 4, connecting pipe; 5, second valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] An embodiment of the present application provides a compressed air condensate water recovery device for a condensing device, which can solve the problem in the related art that when the compressed gas is cooled through a shell and tube heat exchanger, condensate water will accumulate in the heat exchanger head, which will easily affect the flow rate of the compressed air and affect the use effect of the compressed air.

[0023] See also Figure 1-Figure 3 A compressed air condensate recovery device of a condensing device, comprising: a fixed pipe 1, a drain pipe 2 and a first valve 3, wherein the fixed pipe 1 is used to be installed at one end of an air outlet of a shell and tube heat exchanger, and flanges 11 are provided at both ends of the fixed pipe 1, and the drain pipe 2 is provided in the fixed pipe 1, and the drain pipe 2 passes through the fixed pipe 1, and the drain pipe 2 is welded and fixed to the fixed pipe 1, and a water inlet 201 and a drain outlet 202 are provided at both ends of the drain pipe 2, respectively, and the water inlet 201 is located in a head at one end of the shell and tube heat exchanger close to the air outlet, and the drain outlet 202 is located outside the drain pipe 2, and the first valve 3 is provided on the drain outlet 202;

[0024] In this way, when in use, the fixed pipe 1 can be installed on the end of the shell and tube heat exchanger close to the gas outlet through the flange 11, and the drain pipe 2 is inserted into the end of the end so that the water inlet 201 is located at the bottom of the end of the end. Then, the pipeline on the required compressed gas equipment can be connected to the end of the fixed pipe 1 away from the end of the end.

[0025] In this way, when the condensed water produced by the shell and tube heat exchanger in the process of cooling the compressed gas accumulates at the bottom of the head, the staff can open the first valve 3 to connect the drain pipe 2 to the outside. Due to the pressure of the compressed gas inside the heat exchanger, the water in the head will be pushed into the water inlet 201 by the compressed gas, so that the condensed water in the head can flow through the drain pipe 2 to the drain port 202, and finally be discharged to the outside through the first valve 3;

[0026] In this way, the condensed water accumulated in the head can be discharged outward in time through the drain pipe 2, so as to avoid the condensed water accumulating in the head to corrode the heat exchanger and affect the service life of the heat exchanger. At the same time, it can also avoid a large amount of condensed water remaining in the head, reducing the flow rate of the compressed air and affecting the flow efficiency of the compressed air, so as to ensure the use effect of the compressed air;

[0027] At the same time, the staff can also control the opening and closing of the drain pipe 2 through the first valve 3 to avoid the waste of resources caused by the compressed air flowing out through the drain pipe 2 when there is no water in the head. The staff can also adjust the flow of the drain pipe 2 according to the output efficiency of the condensed water, so that the output efficiency of the condensed water matches the flow of the drain pipe 2. In this way, the staff does not need to frequently open and close the first valve 3 to discharge the condensed water, which is convenient for use.

[0028] When discharging condensed water, the first valve 3 can also be connected to the water tank through a pipeline, so that the condensed water produced during the cooling process of the compressed air can be collected through the pipeline and the water tank for recycling during factory operations, which can reduce production costs and be more environmentally friendly;

[0029] When there is no need to discharge condensed water from the heat exchanger, the staff can remove the fixed pipe 1 from the heat exchanger, so that the device can be disassembled and assembled according to the need to discharge condensed water. The device is not only simple in structure, but also does not need to change the structure of the heat exchanger itself when used. It has low cost, is easy to maintain, and has strong practicality.

[0030] The height of the plane where the water inlet 201 is located is higher than the height of the plane where the water outlet 202 is located;

[0031] In this way, when the air compressor is shut down and there is no compressed air pressure in the heat exchanger, the condensed water in the head will automatically enter the water inlet 201 through the siphon principle and be discharged from the drain outlet 202 through the drain pipe 2, thereby avoiding the accumulation of condensed water in the head. In this way, the water in the head can be automatically discharged without using other driving sources such as water pumps, which is very practical.

[0032] Specifically, in this embodiment, the drain pipe 2 includes a straight section 21 and an inclined section 22, the straight section 21 is located in the fixed pipe 1, and the inclined section 22 is located in the head of the shell and tube heat exchanger near the air outlet. The height of the plane where the inclined section 22 is located decreases as the distance from the straight section 21 increases, and the connection between the straight section 21 and the inclined section 22 is processed with an arc transition.

[0033] The bent arrangement of the drain pipe 2 can not only reduce the flow resistance of the condensed water in the drain pipe 2, but also facilitate the smooth flow of the water stored in the head;

[0034] When installing the curved drain pipe 2, the staff can first extend the inclined section 22 into the head, and then rotate the fixed pipe 1 so that the drain pipe 2 can smoothly enter the bottom end of the head, which facilitates the installation and use of the drain pipe 2 and is highly practical.

[0035] More specifically, the drainage pipe 2 is formed by bending in one piece;

[0036] This can ensure the structural strength of the drain pipe 2, thereby ensuring the service life of the device.

[0037] Preferably, a connecting pipe 4 is provided at one end of the first valve 3 away from the drain pipe 2, and a second valve 5 is provided at one end of the connecting pipe 4 away from the first valve 3;

[0038] When it is necessary to drain the water in the head, the staff can open the first valve 3 and the second valve 5. When it is necessary to close the drain pipe 2, the staff can only close the first valve 3 or the second valve 5. In this way, when one of the valves is damaged, the other valve can also control the switch and drainage flow of the drain pipe 2, thereby playing a safety role and extending the service life of the device. In this way, there is no need to shut down the entire equipment for maintenance in time, and the valve can be replaced later, thereby ensuring the production efficiency of the factory, and it is highly practical.

[0039] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0040] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0041] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A compressed air condensate water recovery device for a condensing device, characterized in that: It includes: A fixed pipe (1) is used for being installed at one end of an air outlet of a shell and tube heat exchanger, and flanges (11) are provided at both ends of the fixed pipe (1); A drainage pipe (2) is arranged in the fixed pipe (1), the drainage pipe (2) passes through the fixed pipe (1), and two ends of the drainage pipe (2) are respectively provided with a water inlet (201) and a drainage outlet (202), the water inlet (201) is located in a head at one end of the shell and tube heat exchanger close to the air outlet, and the drainage outlet (202) is located outside the drainage pipe (2); The first valve (3) is arranged on the drain outlet (202).

2. A compressed air condensate recovery device for a condensing device according to claim 1, characterized in that: The height of the plane where the water inlet (201) is located is higher than the height of the plane where the water outlet (202) is located.

3. A compressed air condensate recovery device for a condensing device as claimed in claim 2, characterized in that: The drain pipe (2) comprises a straight section (21) and an inclined section (22); the straight section (21) is located in the fixed pipe (1); the inclined section (22) is located in the end cap of the shell and tube heat exchanger close to the air outlet; the height of the plane where the inclined section (22) is located decreases as the distance from the straight section (21) increases; and the connection between the straight section (21) and the inclined section (22) is processed with an arc transition.

4. A compressed air condensate recovery device for a condensing device as claimed in claim 3, characterized in that: The drainage pipe (2) is formed by bending in one piece.

5. The compressed air condensate water recovery device of the condensing device according to claim 1, characterized in that: A connecting pipe (4) is provided at one end of the first valve (3) away from the drain pipe (2), and a second valve (5) is provided at one end of the connecting pipe (4) away from the first valve (3).

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