High-temperature and high-pressure efficient energy-saving steam heat exchanger with double U-shaped pipes

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a high-temperature and high-pressure double-U-shaped-pipe efficient energy-saving steam heat exchanger which comprises a mounting frame, two frame plates are fixedly connected to the outer side of the mounting frame, a plurality of outer U-shaped pipes are fixedly connected to the inner side of the mounting frame, inner U-shaped pipes are arranged in the outer U-shaped pipes, and the inner U-shaped pipes are fixedly connected to the outer U-shaped pipes. The two ends of the multiple inner U-shaped pipes are fixedly connected with two combined pipes, the outer sides of the combined pipes are fixedly connected with flange plates, the inner side of the mounting frame is fixedly connected with a separation plate, and a water inlet is formed in the top of the separation plate. According to the utility model, the external condensed water pipe is connected with the water inlet, condensed water enters the S-shaped channel through the water inlet, is in contact with the outer side of the outer U-shaped pipe and cools the outer U-shaped pipe, then the condensed water absorbing heat is discharged through the water outlet, and at the moment, water vapor in the outer U-shaped pipe and the inner U-shaped pipe is rapidly cooled; in this way, the efficient heat exchange effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. It is widely used in industrial production. Its main function is to enable two fluids at different temperatures to exchange heat, thereby realizing processes such as heating, cooling, condensing, and evaporating the fluid. Steam is used as the heating source because its latent heat of condensation is large when it undergoes phase change. Compared with surface heat exchangers, the required heat exchange area is relatively small. In addition, its unit heat transport capacity is also small. It is currently receiving widespread attention in all walks of life.

[0003] When the heat exchanger in the prior art is working, the heat in the U-tube relies on its own heat dissipation, which is difficult to cool down quickly. The poor heat dissipation effect causes the heat exchanger to easily overheat. Therefore, the technology in this field proposes a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger, which aims to improve the problem that when the heat exchanger in the prior art is working, the heat in the U-tube relies on itself to dissipate heat, which is difficult to cool down quickly, and the heat dissipation effect is poor, which makes the heat exchanger prone to overheating.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature and high-pressure double U-tube high-efficiency energy-saving steam heat exchanger, comprising a mounting frame, two frame plates are fixedly connected to the outer side of the mounting frame, a plurality of outer U-tubes are fixedly connected to the inner side of the mounting frame, an inner U-tube is arranged inside the outer U-tube, two combined tubes are fixedly connected to both ends of the plurality of inner U-tubes, a flange is fixedly connected to the outer side of the combined tube, an isolation plate is fixedly connected to the inner side of the mounting frame, a water inlet is provided on the top of the isolation plate, a water outlet is provided on the bottom of the isolation plate, an S-shaped channel is provided inside the isolation plate, a positioning component is arranged on the outer side of the mounting frame, and the positioning component is used to assist in positioning the mounting frame.

[0006] Furthermore, the positioning assembly includes four positioning plates, and the four positioning plates are respectively fixedly connected to two sides of the outside of the installation frame.

[0007] Furthermore, a plurality of assembly holes are provided inside the frame plate, and the frame plate is made of steel.

[0008] Furthermore, one end of the S-shaped channel is connected to the water inlet, and the other end of the S-shaped channel is connected to the water outlet.

[0009] Furthermore, both ends of the outer U-shaped tube pass through the outer side of the isolation plate, and the outer side of the outer U-shaped tube is connected to the inside of the S-shaped channel.

[0010] Furthermore, the interior of the outer U-shaped tube is communicated with the interior of the combined tube, and the interior of the inner U-shaped tube is communicated with the interior of the combined tube.

[0011] Furthermore, the installation frame is made of steel.

[0012] Furthermore, the isolation plate is located in the middle of the inner side of the installation frame, and the isolation plate is made of aluminum alloy.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, an external condensation water pipe is connected to the water inlet, and the condensation water enters the interior of the S-shaped channel through the water inlet, contacts the outer side of the outer U-shaped tube, cools the outer U-shaped tube, and then the condensation water that has absorbed the heat is discharged through the water outlet. At this time, the water vapor in the outer U-shaped tube and the inner U-shaped tube will be quickly cooled, thus achieving the effect of efficient heat exchange.

[0015] 2. In the utility model, the positioning plate is initially positioned on the plate, and then bolts are passed through the assembly holes for fastening. The auxiliary effect of the initial positioning can save time and effort when assembling the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a high-temperature, high-pressure, double U-tube, high-efficiency, energy-saving steam heat exchanger proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the isolation plate structure of a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the S-shaped channel structure of a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the inner U-tube of a high-temperature, high-pressure, double U-tube, high-efficiency, energy-saving steam heat exchanger proposed by the utility model.

[0020] Legend:

[0021] 1. Installation frame; 2. Frame plate; 3. External U-shaped tube; 4. Internal U-shaped tube; 5. Combined tube; 6. Flange; 7. Isolation plate; 8. Water inlet; 9. Water outlet; 10. S-shaped channel; 11. Positioning plate; 12. Assembly hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 3 The utility model provides an embodiment: a high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger. The heat exchanger made of steel can withstand high temperature and high pressure and operate stably, including a mounting frame 1, two frame plates 2 are fixedly connected to the outside of the mounting frame 1, a plurality of outer U-tubes 3 are fixedly connected to the inside of the mounting frame 1, an inner U-tube 4 is arranged inside the outer U-tube 3, two combined tubes 5 are fixedly connected to both ends of the plurality of inner U-tubes 4, a flange 6 is fixedly connected to the outside of the combined tube 5, an isolation plate 7 is fixedly connected to the inside of the mounting frame 1, a water inlet 8 is provided on the top of the isolation plate 7, a water outlet 9 is provided on the bottom of the isolation plate 7, an S-shaped channel 10 is provided inside the isolation plate 7, a positioning component is provided on the outside of the mounting frame 1, and the positioning component is used to assist in positioning the mounting frame 1, the inside of the outer U-tube 3 is connected to the inside of the combined tube 5, The interior of the inner U-shaped tube 4 is connected with the interior of the combined tube 5. The material of the mounting frame 1 is steel material. The isolation plate 7 is located in the middle of the inner side of the mounting frame 1. The material of the isolation plate 7 is aluminum alloy. The aluminum alloy has good heat resistance and low temperature resistance, is not easy to deform, and can be used to stably fix the outer U-shaped tube 3. The water vapor with higher temperature will enter the interior of the combined tube 5 through the upper flange 6, and then slowly cool down by contacting the inner wall of multiple outer U-shaped tubes 3 and inner U-shaped tubes 4. At this time, an external condensation water pipe can be connected to the water inlet 8. The condensed water will enter the interior of the S-shaped channel 10 through the water inlet 8, contact the outer side of the outer U-shaped tube 3, cool down the outer U-shaped tube 3, and then the condensed water that has absorbed heat will be discharged through the water outlet 9. At this time, the water vapor in the outer U-shaped tube 3 and the inner U-shaped tube 4 will be quickly cooled, making the cooling effect more obvious and faster.

[0024] Reference Figure 2-Figure 4The positioning assembly includes four positioning plates 11, which are fixedly connected to the two sides of the outside of the installation frame 1 respectively. A plurality of assembly holes 12 are opened inside the frame plate 2. The frame plate 2 is made of steel material, which has high strength and is stable enough. One end of the S-shaped channel 10 is connected to the water inlet 8, and the other end of the S-shaped channel 10 is connected to the water outlet 9. The two ends of the outer U-shaped tube 3 pass through the outside of the isolation plate 7, and the outside of the outer U-shaped tube 3 is connected to the inside of the S-shaped channel 10. When the heat exchanger needs to be assembled, the positioning plate 11 can be placed on the plate for preliminary positioning, and then fastened with bolts through the assembly holes 12. The auxiliary effect of the preliminary positioning can make the assembly of the heat exchanger more time-saving and labor-saving.

[0025] Working principle: Water vapor with higher temperature will enter the interior of the combined tube 5 through the upper flange 6, and then slowly cool down by contacting the inner wall of multiple outer U-shaped tubes 3 and inner U-shaped tubes 4. At this time, an external condensation water pipe can be connected to the water inlet 8, and the condensed water will enter the interior of the S-shaped channel 10 through the water inlet 8, contact the outer side of the outer U-shaped tube 3, and cool the outer U-shaped tube 3. Then, the condensed water that has absorbed heat will be discharged through the water outlet 9. At this time, the water vapor in the outer U-shaped tube 3 and the inner U-shaped tube 4 will be quickly cooled, and then liquefied into water and enter the interior of the lower combined tube 5, and then discharged from the opening of the lower flange 6. When the heat exchanger needs to be assembled, the positioning plate 11 can be placed on the plate for preliminary positioning, and then fastened with bolts through the assembly hole 12.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger, comprising a mounting frame (1), characterized in that: The outside of the installation frame (1) is fixedly connected to two frame plates (2), the inside of the installation frame (1) is fixedly connected to a plurality of outer U-shaped tubes (3), the inside of the outer U-shaped tubes (3) is provided with inner U-shaped tubes (4), two combined tubes (5) are fixedly connected at both ends of the plurality of inner U-shaped tubes (4), the outside of the combined tubes (5) is fixedly connected to a flange (6), the inside of the installation frame (1) is fixedly connected to an isolation plate (7), the top of the isolation plate (7) is provided with a water inlet (8), the bottom of the isolation plate (7) is provided with a water outlet (9), the inside of the isolation plate (7) is provided with an S-shaped channel (10), and a positioning component is provided on the outside of the installation frame (1), the positioning component is used to assist in positioning the installation frame (1).

2. A high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1, characterized in that: The positioning assembly comprises four positioning plates (11), and the four positioning plates (11) are respectively fixedly connected to two sides of the outside of the installation frame (1).

3. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1 is characterized in that: A plurality of assembly holes (12) are provided inside the frame plate (2), and the frame plate (2) is made of steel.

4. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1 is characterized in that: One end of the S-shaped channel (10) is connected to the water inlet (8), and the other end of the S-shaped channel (10) is connected to the water outlet (9).

5. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1 is characterized in that: Both ends of the outer U-shaped tube (3) penetrate the outer side of the isolation plate (7), and the outer side of the outer U-shaped tube (3) is connected to the inside of the S-shaped channel (10).

6. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1, characterized in that: The interior of the outer U-shaped tube (3) is connected to the interior of the combined tube (5), and the interior of the inner U-shaped tube (4) is connected to the interior of the combined tube (5).

7. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1 is characterized in that: The material of the installation frame (1) is steel.

8. The high-temperature and high-pressure double U-tube high-efficiency and energy-saving steam heat exchanger according to claim 1, characterized in that: The isolation plate (7) is located in the middle of the inner side of the installation frame (1), and the isolation plate (7) is made of aluminum alloy.

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