A preheater facilitating accurate quantitative feeding

Abstract

The utility model relates to preheater technical field provides a preheater convenient to accurate quantitative feeding, including the head, one side fixedly connected with first tube box cylinder section of the head, one side installation has left tube plate of first tube box cylinder section, the outer wall installation has inner lining of first tube box cylinder section, the inside movable mounting of first tube box cylinder section has the stud, the outer wall movable joint has the nut of stud, one side installation has the cylinder of left tube plate. The utility model discloses through the injection of ammonia water through ammonia water inlet pipe, the ammonia wastewater enters the cylinder through ammonia wastewater inlet pipe, and ammonia wastewater temperature is higher than ammonia water, and the heat is transferred from the shell pass to the tube pass through the wall of heat exchange pipe, makes ammonia water be preheated, forces the shell pass fluid to change the flow direction many times through multiple spoiler, increases the turbulence degree, strengthens the heat transfer efficiency, makes the ammonia water after preheating discharge through ammonia water outlet pipe, plays the effect that the stable continuous preheating treatment of ammonia water is convenient.

Description

Technical Field

[0001] This utility model relates to the field of preheater technology, and in particular to a preheater that facilitates precise quantitative feeding. Background Technology

[0002] A feed preheater is an industrial heat exchange device whose main function is to raise the temperature of the material to be processed (such as liquid, gas, or solid) to the range required by the process through heat transfer, thereby optimizing the efficiency and quality of subsequent production processes. Its core principle is to utilize heat sources such as steam, hot oil, and high-temperature flue gas to transfer heat to the feed material through conduction, convection, or radiation. It is widely used in petrochemical, steel smelting, power generation, and food processing industries.

[0003] Existing feed preheaters are inconvenient for providing stable and continuous preheating of the medium during use, which affects preheating efficiency and reduces the continuity of industrial heat exchange processes. Utility Model Content

[0004] The purpose of this invention is to provide a preheater that facilitates precise quantitative feeding, thereby addressing the shortcomings of existing preheaters in providing stable and continuous preheating of the medium.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a preheater that facilitates precise quantitative feeding, including a head;

[0006] A first tube box section is fixedly connected to one side of the end cap. A left tube plate is installed on one side of the first tube box section. An inner liner is installed on the outer wall of the first tube box section. A stud is movably installed inside the first tube box section. A nut is movably connected to the outer wall of the stud.

[0007] A cylinder is installed on one side of the left tube sheet. A heat exchange tube is installed inside the cylinder. A spacer tube is installed inside the cylinder. A nut is movably connected to the outer wall of the spacer tube. A tie rod is installed inside the spacer tube. A baffle is fixedly connected to the inner wall of the cylinder.

[0008] Preferably, an ammonia wastewater inlet pipe is installed on the outer wall of the cylinder, one end of the ammonia wastewater inlet pipe is fixedly connected to a first flange, and the other end of the ammonia wastewater inlet pipe is installed with an anti-impact plate.

[0009] Preferably, a right tube sheet is installed at one end of the cylinder, a second tube box section is installed on one side of the right tube sheet, an ammonia water outlet pipe is fixedly connected to the top of the second tube box section, a second flange is fixedly connected to one end of the ammonia water outlet pipe, a first drain pipe is fixedly connected to the bottom of the second tube box section, and a third flange is fixedly connected to one end of the first drain pipe.

[0010] Preferably, a second row of clean pipes is fixedly connected to the outer wall of the cylinder, a fourth flange is fixedly connected to one end of the second row of clean pipes, a first saddle is fixedly connected to the bottom of the cylinder, and a nameplate holder is fixedly connected to the outer wall of the cylinder.

[0011] Preferably, the stud is threaded to the nut, and the nut is threaded to the pull rod.

[0012] Preferably, the right tube sheet has a slotted design and is connected to the fixed-distance tube clamp.

[0013] Preferably, the spoilers are evenly distributed along the inner wall of the cylinder, and the spoilers are sleeved and installed on the outer wall of the fixed-distance tube.

[0014] Preferably, a second saddle is fixedly connected to the bottom of the cylinder, a grounding plate is fixedly connected to one side of the second saddle, an exhaust pipe is fixedly connected to the outer wall of the cylinder, and an ammonia wastewater outlet pipe is fixedly connected to the outer wall of the cylinder.

[0015] Preferably, an ammonia inlet pipe is fixedly connected to the outside of the first pipe box section, and a solenoid valve is installed on the outer wall of the ammonia inlet pipe, with a flow meter installed on one side of the solenoid valve.

[0016] Preferably, the ammonia inlet pipe and the second pipe box section are symmetrically arranged around the central axis of the cylinder, and the ammonia inlet pipe and the ammonia outlet pipe are symmetrically designed.

[0017] The preheater provided by this utility model facilitates precise quantitative feeding, and its advantages are as follows:

[0018] By setting up an ammonia water inlet pipe, a shell, heat exchange tubes, ammonia wastewater inlet pipe, ammonia water outlet pipe, and baffles, ammonia water is injected through the ammonia water inlet pipe, and ammonia wastewater enters the shell through the ammonia wastewater inlet pipe. The temperature of the ammonia wastewater is higher than that of the ammonia water, and the heat is transferred from the shell side to the tube side through the tube wall of the heat exchange tube, thus preheating the ammonia water. Multiple baffles force the shell-side fluid to change its flow direction multiple times, increasing the degree of turbulence and enhancing the heat transfer efficiency. The preheated ammonia water is discharged through the ammonia water outlet pipe, which facilitates stable and continuous preheating of ammonia water.

[0019] By using the first pipe box section, the ammonia water inlet pipe, and the solenoid valve, ammonia water can be injected into the first pipe box section by injecting it through the ammonia water inlet pipe and opening the solenoid valve. As the ammonia water enters and flushes the flow meter, the combined action of the solenoid valve and the flow meter facilitates precise quantitative feeding of ammonia water. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is a side sectional view of the cylindrical body of this utility model;

[0022] Figure 3 This is a side view of the nut structure of this utility model;

[0023] Figure 4 This is a side view of the right tube sheet structure of this utility model;

[0024] Figure 5 This is a front view schematic diagram of the right tube sheet structure of this utility model;

[0025] Figure 6 This is a front view schematic diagram of the tie rod structure of this utility model;

[0026] Figure 7 This is a side view of the spoiler structure of this utility model.

[0027] The following are the annotations in the diagram: 1. End cap; 2. First tube box section; 3. Ammonia water inlet pipe; 4. Solenoid valve; 41. Flow meter; 5. Liner; 6. Stud; 7. Nut; 8. Shell; 9. Heat exchange tube; 10. Nut; 11. Spacing tube; 12. Anti-impact plate; 13. Ammonia wastewater inlet pipe; 14. First flange; 15. Ammonia water outlet pipe; 16. Second flange; 17. First drain pipe; 18. Third flange; 19. Right tube sheet; 20. Second drain pipe; 21. Fourth flange; 22. First saddle; 23. Baffle plate; 24. Nameplate holder; 25. Tie rod; 26. Second saddle; 27. Grounding plate; 28. Left tube sheet; 29. ​​Exhaust pipe; 30. Ammonia wastewater outlet pipe; 31. Second tube box section. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-7 The present invention provides a preheater that facilitates precise quantitative feeding, including a head 1.

[0030] Reference Figures 1-7As shown, a first tube box section 2 is fixedly connected to one side of the end cap 1. A left tube plate 28 is installed on one side of the first tube box section 2. An inner liner 5 is installed on the outer wall of the first tube box section 2. A stud 6 is movably installed inside the first tube box section 2. A nut 7 is movably connected to the outer wall of the stud 6. A cylinder 8 is installed on one side of the left tube plate 28. A heat exchange tube 9 is installed inside the cylinder 8. A spacer tube 11 is installed inside the cylinder 8. A nut 10 is movably connected to the outer wall of the spacer tube 11. A tie rod 25 is installed inside the pipe 11. A baffle 23 is fixedly connected to the inner wall of the cylinder 8. An ammonia wastewater inlet pipe 13 is installed on the outer wall of the cylinder 8. A first flange 14 is fixedly connected to one end of the ammonia wastewater inlet pipe 13, and an anti-surge plate 12 is installed at the other end of the ammonia wastewater inlet pipe 13. A right pipe plate 19 is installed at one end of the cylinder 8. A second pipe box section 31 is installed on one side of the right pipe plate 19. An ammonia water outlet pipe 15 is fixedly connected to the top of the second pipe box section 31. A second flange 16 is fixedly connected to one end of the water outlet pipe 15; a first row of clean pipes 17 is fixedly connected to the bottom of the second pipe box section 31; a third flange 18 is fixedly connected to one end of the first row of clean pipes 17; a second row of clean pipes 20 is fixedly connected to the outer wall of the cylinder 8; a fourth flange 21 is fixedly connected to one end of the second row of clean pipes 20; a first saddle 22 is fixedly connected to the bottom of the cylinder 8; a nameplate holder 24 is fixedly connected to the outer wall of the cylinder 8; and studs 6 and nuts 7 are threaded together. The cap 10 is threaded to the pull rod 25. The right tube plate 19 is a slotted design and is engaged with the spacer tube 11. The baffles 23 are evenly distributed on the inner wall of the cylinder 8 and are fitted onto the outer wall of the spacer tube 11. The bottom of the cylinder 8 is fixedly connected to the second saddle 26. The side of the second saddle 26 is fixedly connected to the grounding plate 27. The outer wall of the cylinder 8 is fixedly connected to the exhaust pipe 29 and the outer wall of the cylinder 8 is fixedly connected to the ammonia wastewater outlet pipe 30.

[0031] By connecting the first tube box section 2 to one side of the left tube sheet 28, placing the liner 5 between the first tube box section 2 and the left tube sheet 28, and then moving the stud 6 so that it passes through the first tube box section 2 and the left tube sheet 28, connecting the nut 7 to one end of the stud 6 and rotating it, since the stud 6 and the nut 7 are threadedly connected, the first tube box section 2 can be installed on one side of the left tube sheet 28. Similarly, the second tube box section 31 is installed on one side of the right tube sheet 19. Ammonia water is injected through the ammonia water inlet pipe 3, and ammonia wastewater enters the cylinder 8 through the ammonia wastewater inlet pipe 13. The temperature of the ammonia wastewater shell-side fluid is higher than that of the ammonia water tube-side fluid. The heat is transferred from the shell side to the tube side through the tube wall of the heat exchange tube 9, so that the ammonia water is preheated. Multiple baffles 23 force the shell-side fluid to change its flow direction multiple times, increasing the degree of turbulence and enhancing the heat transfer efficiency, so that the preheated ammonia water is discharged through the ammonia water outlet pipe 15.

[0032] Reference Figure 1As shown, an ammonia water inlet pipe 3 is fixedly connected to the outside of the first pipe box section 2. A solenoid valve 4 is installed on the outer wall of the ammonia water inlet pipe 3. A flow meter 41 is installed on one side of the solenoid valve 4. The ammonia water inlet pipe 3 and the second pipe box section 31 are symmetrically arranged about the central axis of the cylinder 8. The ammonia water inlet pipe 3 and the ammonia water outlet pipe 15 are symmetrically designed.

[0033] By injecting ammonia water through the ammonia water inlet pipe 3 and opening the solenoid valve 4, ammonia water can be injected into the first pipe box section 2. As the ammonia water enters and flushes the flow meter 41, the precise quantitative feeding of ammonia water can be achieved through the combined action of the solenoid valve 4 and the flow meter 41.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A preheater for easy and precise quantitative feeding, comprising a head (1); Its features are: The end cap (1) is fixedly connected to one side of a first tube box section (2), a left tube plate (28) is installed on one side of the first tube box section (2), an inner liner (5) is installed on the outer wall of the first tube box section (2), a stud (6) is movably installed inside the first tube box section (2), and a nut (7) is movably connected to the outer wall of the stud (6). A cylinder (8) is installed on one side of the left tube sheet (28). A heat exchange tube (9) is installed inside the cylinder (8). A spacer tube (11) is installed inside the cylinder (8). A nut (10) is movably connected to the outer wall of the spacer tube (11). A tie rod (25) is installed inside the spacer tube (11). A baffle plate (23) is fixedly connected to the inner wall of the cylinder (8).

2. The preheater for precise quantitative feeding according to claim 1, characterized in that: The outer wall of the cylinder (8) is equipped with an ammonia wastewater inlet pipe (13), one end of which is fixedly connected to a first flange (14), and the other end of which is equipped with an anti-impact plate (12).

3. A preheater for precise quantitative feeding according to claim 1, characterized in that: A right tube sheet (19) is installed at one end of the cylinder (8), and a second tube box section (31) is installed on one side of the right tube sheet (19). An ammonia water outlet pipe (15) is fixedly connected to the top of the second tube box section (31), and a second flange (16) is fixedly connected to one end of the ammonia water outlet pipe (15). A first row of clean pipes (17) is fixedly connected to the bottom of the second tube box section (31), and a third flange (18) is fixedly connected to one end of the first row of clean pipes (17).

4. A preheater for precise quantitative feeding according to claim 1, characterized in that: The outer wall of the cylinder (8) is fixedly connected to a second row of clean pipes (20), one end of the second row of clean pipes (20) is fixedly connected to a fourth flange (21), the bottom of the cylinder (8) is fixedly connected to a first saddle (22), and the outer wall of the cylinder (8) is fixedly connected to a nameplate holder (24).

5. A preheater for precise quantitative feeding according to claim 1, characterized in that: The stud (6) is threaded to the nut (7), and the nut (10) is threaded to the pull rod (25).

6. A preheater for precise quantitative feeding according to claim 3, characterized in that: The right tube sheet (19) is a slotted design and is engaged with the spacer tube (11).

7. A preheater for precise quantitative feeding according to claim 1, characterized in that: The spoilers (23) are evenly distributed on the inner wall of the cylinder (8) and are sleeved on the outer wall of the spacer tube (11).

8. A preheater for precise quantitative feeding according to claim 1, characterized in that: The bottom of the cylinder (8) is fixedly connected to a second saddle (26), and a grounding plate (27) is fixedly connected to one side of the second saddle (26). An exhaust pipe (29) is fixedly connected to the outer wall of the cylinder (8), and an ammonia wastewater outlet pipe (30) is fixedly connected to the outer wall of the cylinder (8).

9. A preheater for precise quantitative feeding according to claim 3, characterized in that: The first pipe box section (2) is fixedly connected to an ammonia water inlet pipe (3), and an electromagnetic valve (4) is installed on the outer wall of the ammonia water inlet pipe (3). A flow meter (41) is installed on one side of the electromagnetic valve (4).

10. A preheater for precise quantitative feeding according to claim 9, characterized in that: The ammonia water inlet pipe (3) and the second pipe box section (31) are symmetrically arranged around the central axis of the cylinder (8), and the ammonia water inlet pipe (3) and the ammonia water outlet pipe (15) are symmetrically designed.

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