High efficiency air cooler

Abstract

The invention discloses a high-efficiency air cooler, comprising a heat exchange tube, a manifold, an end cover, an explosion-proof fan, a hood, a support and a tube sheet. There are two tube sheets, the tube sheets are arranged in parallel, two support posts are fixedly connected below the tube sheets, heat exchange tubes are arranged between adjacent surfaces of the tube sheets, the heat exchange tubes are arranged obliquely, a plurality of manifolds are arranged on opposite back surfaces, the manifolds are arranged in a staggered manner, the manifolds on both sides are connected in a "Z" shape through the heat exchange tubes, the end faces of the manifolds are provided with end covers, a liquid inlet is provided at one end of the top manifold, and a liquid outlet and an exhaust and sewage outlet are provided at one end of the bottom manifold; there are four support posts, connecting rods are provided at positions near the tops of adjacent support posts, there are four connecting rods, which are distributed in a rectangular shape, one end of the hood is connected to the connecting rod flange, and the other end is fixedly connected to the explosion-proof fan, two side surfaces in the length direction of the hood are provided with extended edges, the extended edges are fixed to the two side edges of the tube sheet, the explosion-proof fan forces cooling of the liquid in the heat exchange tube, and the sand in the liquid will gradually settle down during the flow and be concentrated in the manifold.

Description

Technical Field

[0001] The invention relates to the technical field of produced water desanding and cooling, and in particular to a high-efficiency air cooler. Background Art

[0002] The produced water from some oil and gas fields contains a lot of sand and other impurities, and the temperature is very high. During the treatment process, sand can easily clog equipment and valves, erode pipelines, and high temperatures also place high demands on subsequent equipment. This undoubtedly increases the procurement and maintenance costs of oil production sites. Therefore, it is necessary to carry out sand prevention and cooling treatment on the produced water at the wellhead.

[0003] At present, the sand removal of produced water mostly adopts the method of combining a sand removal tank and a heat exchanger, that is, the sand is removed by a sand removal tank before entering the heat exchanger for cooling. Due to the complex internal structure of the sand removal tank, it is easy to get clogged and inconvenient to clean. If the sand is not removed thoroughly, it is easy to get clogged after entering the heat exchanger, which is difficult to clean and reduces the heat exchange efficiency. This method has high procurement costs, large floor space, and high operation and maintenance costs.

[0004] Based on this, a new type of air cooler is designed to solve the above problems. Summary of the invention

[0005] The invention proposes a high-efficiency air cooler, which can achieve the purpose of removing sand and cooling at the same time, can reduce equipment procurement cost, reduce operation and maintenance cost, and reduce space occupation, and adopts forced air cooling, which is convenient and efficient.

[0006] In order to solve the above technical problems, the basic idea of ​​the technical solution adopted by the present invention is: a high-efficiency air cooler, including heat exchange tubes, manifolds, end covers, explosion-proof fans, wind hoods, pillars, and tube sheets. There are two tube sheets, and the two tube sheets are arranged parallel to each other. Two pillars are fixedly connected under each tube sheet. Heat exchange tubes are arranged between two adjacent side surfaces of the tube sheet. The heat exchange tubes are rolled with fins and arranged obliquely. A plurality of manifolds are respectively arranged in parallel along the surface of the tube sheet on the two opposite sides, and the manifolds on the two tube sheets are staggered. The manifolds on both sides are arranged in a "Z" shape through the heat exchange tubes. ", the end face of the manifold is provided with an end cover, one end of the top manifold is provided with a liquid inlet, and one end of the bottom manifold is provided with a liquid outlet and an exhaust and sewage outlet; there are 4 pillars, and connecting rods are provided near the top of adjacent pillars, and there are 4 connecting rods distributed in a rectangular shape; the wind hood is a square trumpet shape, the end with a larger opening is connected to the connecting rod flange, and the other end is fixedly connected to an explosion-proof fan, and the two side surfaces of the wind hood in the length direction are provided with extended edges, and the extended edges are respectively fixed to the two side edges of the tube sheet, and the height of the extended edges is the same as the height of the tube sheet.

[0007] Furthermore, a protective net is provided between the two tube sheets, and the protective net is located at the top of the tube sheet.

[0008] Furthermore, a maintenance and sand removal port is provided on the end face of the manifold located in the middle position.

[0009] Furthermore, a sealing strip is provided at the connection between the extended edge of the wind cover and the side surface of the tube plate.

[0010] Furthermore, the tube sheet and the support are connected by bolts.

[0011] The beneficial effects of the present invention are:

[0012] The heat exchange tubes of the air cooler are tilted, and headers are set at both ends of the heat exchange tubes. End caps are set at the ends of the headers. The liquid in the heat exchange tubes is forced to cool by explosion-proof fans. At the same time, the sand in the liquid will gradually settle down during the flow and concentrate in the headers. Combining the two equipments of sand removal and heat exchange into a high-efficiency air cooler greatly reduces the equipment procurement cost.

[0013] The high-efficiency air cooler of the present invention has low cost, high safety, compact structure, simple operation, low energy consumption, low operation and maintenance cost, convenient cold source, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention;

[0016] Figure 2 Schematic diagram of the top view of the structure of an embodiment of the present invention.

[0017] In the figure: 1. heat exchange tube; 2. manifold; 3. end cover; 4. explosion-proof fan; 5. wind hood; 501. extension edge; 6. support; 7. tube sheet; 8. protective net; 9. seal; 10. liquid inlet; 11. maintenance and sand removal port; 12. liquid outlet; 13. exhaust and sewage outlet; 14. connecting rod. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] Example: Figure 1 , Figure 2 As shown, a high-efficiency air cooler includes a heat exchange tube, a manifold, an end cover, an explosion-proof fan, a hood, a support, and a tube sheet. There are two tube sheets, and the two tube sheets are arranged parallel to each other. Two supports are fixedly connected under each tube sheet. A heat exchange tube is arranged between two adjacent side surfaces of the tube sheet. The heat exchange tube has rolled fins and is arranged obliquely. A plurality of manifolds are arranged in parallel along the surface of the tube sheet on the two opposite sides, and the manifolds on the two tube sheets are arranged in a staggered manner. The manifolds on both sides are connected in a "Z" shape through the heat exchange tubes. The manifolds The end face is provided with an end cover, the top end of the manifold is provided with a liquid inlet, and the bottom end of the manifold is provided with a liquid outlet and an exhaust and sewage outlet; there are 4 pillars, and connecting rods are provided near the top of adjacent pillars. There are 4 connecting rods, which are distributed in a rectangular shape; the wind hood is a square trumpet shape, and the end with a larger opening is connected to the connecting rod flange, and the other end is fixedly connected to an explosion-proof fan. Extended edges are provided on both sides of the wind hood in the length direction, and the extended edges are fixed on the two side edges of the tube sheet respectively, and the height of the extended edges is the same as the height of the tube sheet.

[0022] A protective net is also arranged between the two tube sheets, and the protective net is located at the top of the tube sheet.

[0023] The end face of the manifold located in the middle is provided with an inspection and sand removal port.

[0024] A sealing strip is provided at the connection between the extended edge of the wind cover and the side surface of the tube plate.

[0025] The tube sheet and the support are connected by bolts, which is convenient for installation and disassembly.

[0026] The heat exchange tubes are rolled with fins and are set at an angle. After the produced water enters through the liquid inlet of the top manifold, it flows in the heat exchange tubes. The produced water in the heat exchange tubes is quickly cooled down by the explosion-proof fan below. In addition, during the flow of produced water in the heat exchange tubes, the sand contained in the produced water will settle and gather in the manifold. The accumulated sand is regularly cleaned through the sand removal port for maintenance; the produced water after cooling and sand removal is discharged through the liquid outlet of the bottom manifold, and the gas and dirt impurities are discharged in time through the exhaust and sewage outlets.

[0027] In actual use, the number of fans can be adjusted according to actual needs; and the manifold uses the largest possible diameter to increase the fluid rotation radius and uses thicker wall thickness to reduce erosion and wear.

[0028] Working principle: After the explosion-proof fan is started, strong cold air enters the heat exchange tube area through the wind hood. After the produced water from the oil well to be desanded and cooled enters from the liquid inlet of the top manifold, it will undergo a sedimentation process each time it passes through the manifold, and each time it passes through the heat exchange tube, it will undergo a heat exchange and cooling process. By analogy, the produced water will undergo multiple cooling and sedimentation processes until the water coming out of the liquid outlet meets the process requirements.

[0029] The maintenance sand removal port is closed by the end cover during the operation of the air cooler. After running for a period of time, the end cover is opened and the sand deposited in the manifold can be cleaned through the maintenance sand removal port.

[0030] A protective net is set above the tube sheet to protect the heat exchange tubes and prevent objects from falling from above and causing damage to the heat exchange tubes.

[0031] The sealing strip provided at the connection between the extended edge of the wind hood and the side of the tube plate prevents the strong cold air generated by the explosion-proof fan from escaping from the gap and causing energy loss.

[0032] Combining the sand removal and heat exchange equipment into a high-efficiency air cooler greatly reduces the equipment procurement cost.

[0033] The high-efficiency air cooler of the present invention has low cost, high safety, compact structure, simple operation, convenient cold source, low energy consumption, low operation and maintenance cost, and is suitable for promotion.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A high efficiency air cooler, characterized in that: It includes heat exchange tubes, manifolds, end covers, explosion-proof fans, wind hoods, pillars, and tube sheets. There are two tube sheets, and the two tube sheets are arranged parallel to each other. Two pillars are fixedly connected under each tube sheet. Heat exchange tubes are arranged between two adjacent side surfaces of the tube sheet. The heat exchange tubes are rolled with fins. The heat exchange tubes are arranged obliquely. A plurality of manifolds are arranged in parallel along the surface of the tube sheet on the two opposite sides. The manifolds on the two tube sheets are staggered. The manifolds on both sides are connected in a "Z" shape through the heat exchange tubes. The end faces of the manifolds are provided with end The cover has a liquid inlet at one end of the top manifold and a liquid outlet and an exhaust and sewage outlet at one end of the bottom manifold; there are 4 pillars, and connecting rods are arranged near the tops of adjacent pillars, and there are 4 connecting rods distributed in a rectangular shape; the wind hood is a square trumpet shape, and the end with a larger opening is connected to the connecting rod flange, and the other end is fixedly connected to an explosion-proof fan, and extended edges are arranged on both sides of the wind hood in the length direction, and the extended edges are respectively fixed on the two side edges of the tube plate, and the height of the extended edges is the same as the height of the tube plate.

2. The high-efficiency air cooler according to claim 1, characterized in that: A protective net is also arranged between the two tube sheets, and the protective net is located at the top of the tube sheet.

3. The high-efficiency air cooler according to claim 2, characterized in that: The end surface of the manifold located in the middle position of the manifold is provided with a maintenance and sand removal port.

4. The high-efficiency air cooler according to claim 3, characterized in that: A sealing strip is provided at the connection between the extended edge of the wind cover and the side surface of the tube plate.

5. The high-efficiency air cooler according to claim 4, characterized in that: The tube sheet is connected to the support by bolts.

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