Galvanized steel pipe cooling water heat energy recycling device

Abstract

The utility model relates to the technical field of heat energy recovery, and discloses a galvanized steel pipe cooling water heat energy recycling device which comprises a cold water pool, one end of the cold water pool is fixedly connected with a booster pump, the input end of the booster pump extends into the cold water pool, the output end of the booster pump is fixedly connected with a first U-shaped pipe, and threaded pipes are arranged at the two ends of the first U-shaped pipe. A first threaded sleeve is connected to the threaded pipe in a threaded mode, a connecting pipe is movably connected to the first threaded sleeve in an inserted mode, a filter screen is movably connected to the interior of the connecting pipe in an inserted mode, fixing rods which are correspondingly arranged on the two sides are fixedly connected to the filter screen, and a cleaning mechanism is arranged between the fixing rods; compared with the prior art, the heat exchange device has the advantages that heat exchange can be carried out while the filter screen is replaced, meanwhile, the filter screen is convenient to disassemble, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery, in particular to a device for recovering heat from cooling water of a galvanized steel pipe. Background Art

[0002] Galvanized steel pipe is a welded steel pipe with hot-dip or electroplated zinc layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oil fields, oil heaters, condenser coolers, coal distillation and washing oil exchangers for chemical coking equipment, and pier piles and support frames for mine tunnels.

[0003] In the production of galvanized steel pipes, the steel pipes are first pickled to remove iron oxide on the surface, and then sent to the hot dip plating tank. After completion, the steel pipes need to be cooled due to their high temperature. They are usually placed in cold water for cooling. The cold water will become hot after use, and then the hot water will be converted into heat through the waste heat recovery heat exchanger, thereby realizing heat recovery and improving energy utilization.

[0004] The waste heat recovery heat exchanger is usually composed of a tube bundle, a shell, and a heat transfer medium flow channel. The heat energy is transferred from the high-temperature waste heat fluid to the low-temperature fluid through the tube bundle to achieve heat transfer. In order to improve the conversion efficiency, the tube bundle is usually arranged in a spiral or serpentine shape, so that in the same space, the tube bundle is longer and the heat dissipation efficiency is higher. Before the hot water is passed into the waste heat recovery heat exchanger, the impurities in the hot water need to be filtered to prevent clogging of the tube bundle. In the prior art, when replacing the filter, the heat exchange needs to be stopped, and then the pipeline needs to be disassembled for replacement, which is time-consuming and labor-intensive. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is that when replacing the filter screen, the heat exchange needs to be stopped, and then the pipeline needs to be disassembled for replacement, which is time-consuming and labor-intensive.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a galvanized steel pipe cooling water heat energy recovery and utilization device, comprising a cold water pool, one end of the cold water pool is fixedly connected to a booster pump, the input end of the booster pump extends into the cold water pool, the output end of the booster pump is fixedly connected to a first U-shaped tube, both ends of the first U-shaped tube are provided with threaded tubes, a first threaded sleeve is threadedly connected to the threaded tube, a connecting tube is movably inserted on the first threaded sleeve, a filter screen is movably inserted in the connecting tube, fixed rods arranged correspondingly on both sides are fixedly connected to the filter screen, a cleaning mechanism is provided between the fixed rods, a second threaded sleeve is movably inserted at one end of the connecting tube, a second U-shaped tube is threadedly connected at one end of the second threaded sleeve, the first U-shaped tube and the second U-shaped tube are provided with electromagnetic valves arranged correspondingly on both sides, a heat exchanger is provided on one side of the cold water pool, and one end of the second U-shaped tube is fixedly connected to the heat exchanger.

[0009] As an improvement, the cleaning mechanism includes a connecting rod between fixed rods, one side of the connecting rod is rotatably connected to a fan, one end of the fan is fixedly connected to a connecting column, one end of the connecting column is fixedly connected to a cleaning rod, and the cleaning rod is in contact with the filter.

[0010] As an improvement, sealing rings cooperating with the first U-shaped tube and the second U-shaped tube are respectively provided at both ends of the connecting tube.

[0011] As an improvement, a sliding groove is provided on the connecting tube, and one end of the first U-shaped tube and the second U-shaped tube is fixedly connected with a limiting ring that cooperates with the sliding groove.

[0012] As an improvement, the heat exchanger is provided with a first water outlet pipe and a second water outlet pipe respectively.

[0013] (III) Beneficial effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] By setting the first U-shaped tube, the second U-shaped tube and the electromagnetic valve, when the filter needs to be replaced, the water replacement pipeline is controlled by the electromagnetic valve, thereby not affecting the heat exchange of the water. Through the functions of the first threaded sleeve, the connecting pipe, the second threaded sleeve, the slide groove and the limit ring, the filter in the connecting pipe can be easily disassembled and replaced, and the surface of the filter can be easily cleaned through the cleaning mechanism to prevent impurities from clogging the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the utility model of a galvanized steel pipe cooling water heat energy recovery and utilization device.

[0017] Figure 2 It is an exploded view of the utility model of a galvanized steel pipe cooling water heat energy recovery and utilization device.

[0018] Figure 3 It is a cross-sectional view of the utility model of a galvanized steel pipe cooling water heat energy recovery and utilization device.

[0019] Figure 4 It is an enlarged view of position A of the galvanized steel pipe cooling water heat energy recovery and utilization device of the present invention.

[0020] As shown in the figure: 1. Cold water tank; 2. Booster pump; 3. First U-shaped tube; 4. Solenoid valve; 5. Threaded tube; 6. First threaded sleeve; 7. Connecting tube; 8. Filter; 9. Fixing rod; 10. Second threaded sleeve; 11. Second U-shaped tube; 12. Heat exchanger; 13. Connecting rod; 14. Fan; 15. Connecting column; 16. Cleaning rod; 17. Sealing ring; 18. Slide; 19. Limiting ring; 20. First water outlet pipe; 21. Second water outlet pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] like Figure 1 to Figure 2 As shown, a galvanized steel pipe cooling water heat energy recovery and utilization device comprises a cold water pool 1, one end of the cold water pool 1 is fixedly connected to a booster pump 2, the input end of the booster pump 2 extends into the cold water pool 1, the output end of the booster pump 2 is fixedly connected to a first U-shaped tube 3, both ends of the first U-shaped tube 3 are provided with a threaded tube 5, the threaded tube 5 is threadedly connected to a first threaded sleeve 6, a connecting tube 7 is movably inserted on the first threaded sleeve 6, a filter screen 8 is movably inserted in the connecting tube 7, the filter screen 8 is fixedly connected to fixed rods 9 arranged on both sides accordingly, the hot water in the cold water pool is input into the first U-shaped tube 3 through the booster pump 2, one end of the connecting tube 7 is connected to the first U-shaped tube 3 through the first threaded sleeve 6, and impurities in the hot water are filtered through the filter screen 8 in the connecting tube 7.

[0023] like Figures 2 to 4As shown, a connecting rod 13 is fixedly connected between the fixing rods 9, and a fan 14 is rotatably connected to one side of the connecting rod 13. A connecting column 15 is fixedly connected to one end of the fan, and one end of the connecting column 15 is fixedly connected to a cleaning rod 16, and the cleaning rod 16 is fitted with the filter screen 8. A second threaded sleeve 10 is movably inserted at one end of the connecting pipe 7, and a second U-shaped tube 11 is threadedly connected to one end of the second threaded sleeve 10. The first U-shaped tube 3 and the second U-shaped tube 11 are both provided with electromagnetic valves 4 arranged correspondingly on both sides. A heat exchanger 12 is provided on one side of the cold water pool 1, and one end of the second U-shaped tube 11 is fixedly connected to the heat exchanger 12. The heat exchanger 12 is respectively provided with a first water outlet pipe 20 and a second water outlet pipe 21, and the two ends of the connecting pipe 7 are respectively A sealing ring 17 is provided which cooperates with the first U-shaped tube 3 and the second U-shaped tube 11, a slide groove 18 is provided on the connecting tube 7, one end of the first U-shaped tube 3 and the second U-shaped tube 11 is fixedly connected with a limit ring 19 which cooperates with the slide groove 18, the connecting tube 7 is connected with the second U-shaped tube 11 through the second threaded sleeve 10, the connecting tube 7 is sealed with the first U-shaped tube 3 and the second U-shaped tube 11 through the sealing ring 17, the hot water is controlled to flow into one end of the first U-shaped tube 3 through the electromagnetic valve 4, the fan 14 is driven to rotate by the flow of hot water, the fan 14 drives the cleaning rod 16 to clean the surface of the filter 8, the heat of the hot water is transferred through the heat exchanger 12, the first water outlet pipe 20 is connected to an external drying equipment, etc., the heat is reused, and the cold water after heat exchange is discharged through the second water outlet pipe 21.

[0024] In specific use, the cold water pool 1 cools the galvanized steel pipe, and the steel pipe makes the temperature of the cold water rise, and the booster pump 2 is started. The booster pump 2 inputs hot water into the first U-shaped tube 3, and then opens the two electromagnetic valves 4 on one side. The hot water passes through the filter screen 8 in the connecting pipe 7, and the impurities are filtered. The flow of hot water drives the fan 14 to rotate, and the fan 14 drives the cleaning rod 16 at one end of the connecting column 15 to rotate, thereby cleaning the surface of the filter screen 8 to prevent the filter screen from being blocked. The filtered hot water enters the second U-shaped tube 11, and then enters the heat exchanger 12. After heat exchange, the heat exchanged water flows out from the first outlet pipe 20 and is connected to an external device that requires heat, thereby realizing the reuse of heat. The cooled water flows out from the second outlet pipe 21, and the water temperature is reduced through the cooling tower, and the galvanized steel pipe is cooled again. When the filter screen 8 needs to be replaced , close the two solenoid valves 4 on one side, and then open the two solenoid valves 4 on the other side, so that the operation of the heat exchanger 12 and other equipment will not be affected during the cooling time of the pipeline. When the pipeline on one side is cooled, rotate the first threaded sleeve 6 and the second threaded sleeve 10 at both ends of the connecting pipe 7, and then remove the connecting pipe 7, take out the sealing ring 17 at one end of the connecting pipe 7, and then take out the filter screen 8 by pulling the connecting rod 13, replace the filter screen 8, and then put it back, and then put the sealing ring 17 in, and then place the connecting pipe 7 between the first U-shaped tube 3 and the second U-shaped tube 11, move the first threaded sleeve 6 on one side to make it contact with the threaded tube 5, and then rotate the first threaded sleeve 6 to complete the fixation of one end of the connecting pipe 7, and complete the fixation of the other end of the connecting pipe 7 according to the above operation. At this time, the replacement of the filter screen 8 is completed.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A galvanized steel pipe cooling water heat energy recovery and utilization device, comprising a cold water tank (1), characterized in that: One end of the cold water pool (1) is fixedly connected to a booster pump (2), the input end of the booster pump (2) extends into the cold water pool (1), the output end of the booster pump (2) is fixedly connected to a first U-shaped tube (3), both ends of the first U-shaped tube (3) are provided with threaded tubes (5), and a first threaded sleeve (6) is threadedly connected to the threaded tube (5); A connecting pipe (7) is movably inserted into the first threaded sleeve (6), a filter screen (8) is movably inserted into the connecting pipe (7), and the filter screen (8) is fixedly connected to fixing rods (9) correspondingly arranged on both sides, and a cleaning mechanism is provided between the fixing rods (9); A second threaded sleeve (10) is movably inserted at one end of the connecting pipe (7), and a second U-shaped tube (11) is threadedly connected at one end of the second threaded sleeve (10). Solenoid valves (4) are arranged correspondingly on both sides of the first U-shaped tube (3) and the second U-shaped tube (11). A heat exchanger (12) is provided at one side of the cold water pool (1), and one end of the second U-shaped tube (11) is fixedly connected to the heat exchanger (12).

2. The galvanized steel pipe cooling water heat energy recovery and utilization device according to claim 1 is characterized in that: The cleaning mechanism comprises a connecting rod (13) between fixed rods (9); one side of the connecting rod (13) is rotatably connected to a fan (14); one end of the fan is fixedly connected to a connecting column (15); one end of the connecting column (15) is fixedly connected to a cleaning rod (16); and the cleaning rod (16) is in contact with the filter screen (8).

3. The galvanized steel pipe cooling water heat energy recovery and utilization device according to claim 1 is characterized in that: Both ends of the connecting tube (7) are respectively provided with sealing rings (17) which cooperate with the first U-shaped tube (3) and the second U-shaped tube (11).

4. The galvanized steel pipe cooling water heat energy recovery and utilization device according to claim 1 is characterized in that: The connecting pipe (7) is provided with a sliding groove (18), and one end of the first U-shaped pipe (3) and the second U-shaped pipe (11) is fixedly connected with a limiting ring (19) matched with the sliding groove (18).

5. The galvanized steel pipe cooling water heat energy recovery and utilization device according to claim 1 is characterized in that: The heat exchanger (12) is provided with a first water outlet pipe (20) and a second water outlet pipe (21), respectively.

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