Large flow channel shell and tube heat exchanger

Abstract

The present invention relates to the technical field of heat exchangers, and discloses a large-flow shell-and-tube heat exchanger, comprising a shell-and-tube cylinder, wherein the left and right sides of the shell-and-tube cylinder are respectively connected to a first side water chamber and a second side water chamber, and an outer surface of the shell-and-tube cylinder is fixedly connected to an oil return main pipe, one end of the oil return main pipe is connected to a Venturi device, and the bottom of the Venturi device is connected to a high-pressure gas or a high-pressure oil return main pipe, the top of the Venturi device is connected to an oil-gas mixture outlet pipe, the other end of the oil return main pipe is respectively connected to a first oil return pipe and a second oil return pipe through a tee, and the top of the shell-and-tube cylinder is connected to a monitoring point. Both ends of the device are in the form of quick-opening door structures, which are convenient for opening and maintenance. By using the arrangement of large-diameter heat exchange tubes, the equipment solves the problem that the existing heat exchanger is easy to clog, and clogging is not easy to occur when easily clogged fluids such as sewage enter the heat exchanger. Dirt and scale removal are simple, the efficiency is higher, the equipment life is long, and it is more energy-saving.

Description

Technical Field

[0001] The invention relates to the field of heat exchangers, and in particular to a large-channel shell-and-tube heat exchanger. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used.

[0003] The heat exchangers currently used in the market are ordinary heat exchangers, which are easy to clog during use, difficult to remove dirt and scale, low in efficiency, and short in equipment service life.

[0004] In order to solve the above problems, the present application proposes a large-flow-channel shell-and-tube heat exchanger. Summary of the invention

[0005] (I) Purpose of the invention

[0006] In order to solve the technical problems existing in the background technology, the present invention proposes a large-channel shell and tube heat exchanger, which solves the problems that the heat exchangers currently on the market are easy to be blocked during use, difficult to remove dirt and scale, low in efficiency, and short equipment service life.

[0007] (II) Technical solution

[0008] In order to solve the above problems, the present invention provides a large-flow shell and tube heat exchanger, including a shell and tube cylinder, the left and right sides of the shell and tube cylinder are respectively connected to a first side water chamber and a second side water chamber, and the outer surface of the shell and tube cylinder is fixedly connected to an oil return main pipe, one end of the oil return main pipe is connected to a Venturi device, and the bottom of the Venturi device is connected to a high-pressure gas or a high-pressure oil return main pipe, the top of the Venturi device is connected to an oil-gas mixture outlet pipe, the other end of the oil return main pipe is respectively connected to a first oil return pipe and a second oil return pipe through a tee, the top of the shell and tube cylinder is connected to a monitoring point, and the inner cavity of the shell and tube cylinder is fixedly connected to a large-diameter heat exchange tube through a support frame, the number of the large-diameter heat exchange tubes is set to be multiple, the inner cavity of the shell and tube cylinder is provided with two oil return grooves, which are respectively connected to the first oil return pipe and the second oil return pipe, the inner cavity of the shell and tube cylinder and located below the large-diameter heat exchange tube is fixedly connected to a liquid equalizing device through a support frame, and the inner cavity of the shell and tube cylinder is fixedly connected to a liquid blocking device.

[0009] Preferably, the top of the first side water chamber is connected to an exhaust pipe, and the bottom of the first side water chamber is connected to a first sewage pipe.

[0010] Preferably, the top of the shell-tube cylinder is connected to a safety valve pipe, the top of the shell-tube cylinder is connected to an air outlet pipe, and the bottom of the shell-tube cylinder is connected to a liquid inlet pipe.

[0011] Preferably, the front and rear sides of the top of the second side water chamber are respectively connected with a water inlet pipe and a water outlet pipe, and a sensor interface is provided on the other side of the water inlet pipe.

[0012] Preferably, a water flow control interface is provided on the front side of the water inlet pipe, and the bottom of the second side water chamber is connected to a second sewage pipe.

[0013] Preferably, the first side water chamber and the second side water chamber are both hinged with water chamber doors on the sides away from each other through quick-opening door hinges, and the first water chamber door handle and the second water chamber door handle are respectively fixedly connected on the sides away from each other of the two water chamber doors.

[0014] Preferably, the outer surface of the shell tube cylinder is connected to the second sight glass, the third sight glass and the first sight glass in sequence from left to right.

[0015] The above-mentioned technical scheme of the present invention has the following beneficial technical effects: the two ends of the device are in the form of quick-opening door structures, which are convenient for opening and maintenance. By utilizing the setting of large-diameter heat exchange tubes, the equipment solves the problem that the existing heat exchanger is easy to be blocked. It is not easy for sewage and other easily blocked fluids to enter the heat exchanger when they enter the heat exchanger. It is simple to remove dirt and scale, with higher efficiency, longer equipment service life, and more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a large-channel shell and tube heat exchanger proposed by the present invention.

[0017] Figure 2 The figure is a right side view of the second side water chamber in a large flow channel shell and tube heat exchanger proposed by the present invention.

[0018] Reference numerals: 101, first water chamber door handle; 102, quick-open door hinge; 103, water chamber door; 104, first side water chamber; 105, exhaust pipe; 106, first sewage pipe; 107, safety valve pipe; 108, air outlet pipe; 109, liquid inlet pipe; 201, large-diameter heat exchange tube; 202, liquid blocking device; 203, oil return tank; 204, second sight glass; 205, liquid equalizing device; 206, shell and tube cylinder; 207, first oil return pipe; 208, The second oil return pipe; 301, the first sight glass; 302, the third sight glass; 303, the monitoring point; 304, the sensor interface; 305, the water flow control interface; 306, the water inlet pipe; 307, the water outlet pipe; 308, the support frame; 309, the second side water chamber; 401, the second sewage pipe; 402, the second water chamber door handle; 403, the high-pressure gas or high-pressure oil return main pipe; 404, the Venturi device; 405, the oil-gas mixture outlet pipe; 406, the oil return main pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0020] like Figure 1-2As shown, a large-flow shell-and-tube heat exchanger proposed in the present invention includes a shell-and-tube barrel 206, the left and right sides of the shell-and-tube barrel 206 are respectively connected to the first side water chamber 104 and the second side water chamber 309, and the outer surface of the shell-and-tube barrel 206 is fixedly connected to an oil return main pipe 406, one end of the oil return main pipe 406 is connected to a venturi device 404, and the bottom of the venturi device 404 is connected to a high-pressure gas or high-pressure oil return main pipe 403, the top of the venturi device 404 is connected to an oil-gas mixture outlet pipe 405, the other end of the oil return main pipe is respectively connected to a first oil return pipe 207 and a second oil return pipe 208 through a tee, the top of the shell-and-tube barrel 206 is connected to a monitoring point 303, and the inner cavity of the shell-and-tube barrel 206 is fixedly connected to Large diameter heat exchange tube 201, the number of large diameter heat exchange tube 201 is set to be multiple, the inside of the two ends of the large diameter heat exchange tube 201 is divided into multiple cavities according to the size of the heat exchange tube and the size of the barrel, and they are sealed and do not flow through each other. The large diameter heat exchange tube 201 adopts a large diameter tube embryo, and the material is one of copper tube, alloy copper tube, and stainless steel tube, which is processed into large diameter heat exchange tube 201. The large diameter heat exchange tube 201 is one of a smooth tube, an internal thread, an external thread tube, or an internal and external thread heat exchange tube. Clean fluid medium or easily blocked fluid medium flows inside the large diameter heat exchange tube 201, and clean refrigerant fluid medium flows outside the tube. In the actual use of the heat exchange equipment, different media and liquid levels are used, and the position of the oil-rich area is also different. According to the size of the cylinder, multiple oil return grooves 203 are set to ensure effective oil return and stable operation of the unit. The inner cavity of the shell and tube cylinder 206 is provided with two oil return grooves 203, which are respectively connected to the first oil return pipe 207 and the second oil return pipe 208. The inner cavity of the shell and tube cylinder 206 is located below the large-diameter heat exchange tube 201 and is fixedly connected to the liquid equalizing device 205 through the support frame 308, and the inner cavity of the shell and tube cylinder 206 is fixedly connected to the liquid blocking device 202. The top of the first side water chamber 104 is connected to the exhaust pipe 105, and the bottom of the first side water chamber 104 is connected to the first sewage pipe 106, the top of the shell and tube cylinder 206 is connected to the safety valve pipe 107, and the top of the shell and tube cylinder 206 is connected to the exhaust pipe 108, and the bottom of the shell and tube cylinder 206 is connected to the exhaust pipe 108. The second side water chamber 309 is connected with a liquid inlet pipe 109, and the front and rear sides of the top of the second side water chamber 309 are respectively connected with a water inlet pipe 306 and a water outlet pipe 307, and a sensor interface 304 is provided on the other side of the water inlet pipe 306, and a water flow control interface 305 is provided on the front side of the water inlet pipe 306, and the bottom of the second side water chamber 309 is connected with a second sewage pipe 401, and the sides of the first side water chamber 104 and the second side water chamber 309 that are away from each other are hinged with water chamber doors 103 through quick-opening door hinges 102, and the sides of the two water chamber doors 103 that are away from each other are respectively fixedly connected with the first water chamber door handle 101 and the second water chamber door handle 402, and the outer surface of the shell tube cylinder 206 is connected with the second sight glass 204, the third sight glass 302 and the first sight glass 301 from left to right in sequence,The two ends of the device are in the form of quick-opening doors, which are convenient for opening and maintenance. By utilizing the large-diameter heat exchange tube 201, the device solves the problem that the existing heat exchanger is easy to clog. It is not easy to cause clogging when sewage and other easily clogged fluids enter the heat exchanger. It is simple to remove dirt and scale, with higher efficiency, longer equipment life, and more energy-saving.

[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A large-channel shell-and-tube heat exchanger, comprising a shell-and-tube cylinder (206), characterized in that: The left and right sides of the shell-tube cylinder (206) are respectively connected to the first side water chamber (104) and the second side water chamber (309), and the outer surface of the shell-tube cylinder (206) is fixedly connected to an oil return main pipe (406), one end of the oil return main pipe (406) is connected to a venturi device (404), and the bottom of the venturi device (404) is connected to a high-pressure gas or high-pressure oil return main pipe (403), the top of the venturi device (404) is connected to an oil-gas mixture outlet pipe (405), the other end of the oil return main pipe (406) is respectively connected to a first oil return pipe (207) and a second oil return pipe (208) through a tee, and the shell-tube cylinder (20 6) is connected to the top of the shell and tube cylinder (206) with a monitoring point (303), and the inner cavity of the shell and tube cylinder (206) is fixedly connected to the large-diameter heat exchange tube (201) through a support frame (308), the number of the large-diameter heat exchange tube (201) is set to be multiple, the inner cavity of the shell and tube cylinder (206) is provided with two return oil grooves (203), which are respectively connected to the first return oil pipe (207) and the second return oil pipe (208), the inner cavity of the shell and tube cylinder (206) and located below the large-diameter heat exchange tube (201) is fixedly connected to a liquid equalizing device (205) through a support frame (308), and the inner cavity of the shell and tube cylinder (206) is fixedly connected to a liquid blocking device (202).

2. A large-channel shell and tube heat exchanger according to claim 1, characterized in that: The top of the first side water chamber (104) is connected to an exhaust pipe (105), and the bottom of the first side water chamber (104) is connected to a first sewage pipe (106).

3. A large-channel shell and tube heat exchanger according to claim 1, characterized in that: The top of the shell-tube cylinder (206) is connected to a safety valve pipe (107), the top of the shell-tube cylinder (206) is connected to an air outlet pipe (108), and the bottom of the shell-tube cylinder (206) is connected to a liquid inlet pipe (109).

4. A large flow channel shell and tube heat exchanger according to claim 1, characterized in that: The front and rear sides of the top of the second side water chamber (309) are respectively connected to a water inlet pipe (306) and a water outlet pipe (307), and a sensor interface (304) is provided on the other side of the water inlet pipe (306).

5. A large flow channel shell and tube heat exchanger according to claim 4, characterized in that: A water flow control interface (305) is provided on the front side of the water inlet pipe (306), and the bottom of the second side water chamber (309) is connected to a second sewage pipe (401).

6. A large-channel shell-and-tube heat exchanger according to claim 1, characterized in that: The first side water chamber (104) and the second side water chamber (309) are both hingedly connected to a water chamber door (103) via a quick-opening door hinge (102) on the sides away from each other, and the two water chamber doors (103) are respectively fixedly connected to a first water chamber door handle (101) and a second water chamber door handle (402) on the sides away from each other.

7. The large-channel shell and tube heat exchanger according to claim 1, characterized in that: The outer surface of the shell-tube cylinder (206) is connected to the second sight glass (204), the third sight glass (302) and the first sight glass (301) in sequence from left to right.

Images