CN213067208U

CN213067208U - Tubular heat exchanger with filtering function

Info

Publication number: CN213067208U
Application number: CN202021961325.3U
Authority: CN
Inventors: 葛红星; 朱小艳
Original assignee: Nantong Zhaohe Machinery Co ltd
Current assignee: Nantong Zhaohe Machinery Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-27
Anticipated expiration: 2030-09-09

Abstract

The application relates to a tubular heat exchanger with a filtering function, which comprises a shell, wherein one end of the shell is connected with a tube box with a cold fluid inlet and a drain outlet, and a bearing ring is arranged on the inner side wall of the tube box and between the cold fluid inlet and the end wall of the opening of the tube box along the circumferential direction of the tube box; a filter screen for filtering sundries in cold fluid is arranged in the pipe box, a mounting ring is arranged on the periphery of the filter screen, and the end wall of the mounting ring is attached to the end wall of the bearing ring facing the opening direction of the pipe box; the collar slides and is connected with the slide bar that is used for fixed filter screen, the pipe case inside wall is seted up and is supplied slide bar one end male slot. Through the filtering action of the filter screen on the cold fluid, the impurities in the cold fluid entering the heat exchange tube are reduced, the risk of blockage of the heat exchange tube is reduced, and the heat exchange efficiency of the heat exchanger is improved. Demolish the filter screen, can realize the further clearance to the interior debris of pipe case and to the degree of depth cleanness of filter screen, avoid the filter screen to block.

Description

Tubular heat exchanger with filtering function

Technical Field

The application relates to the technical field of heat exchange equipment, in particular to a tubular heat exchanger with a filtering function.

Background

The tube type heat exchanger comprises a fixed tube plate heat exchanger, a floating type heat exchanger, a U-shaped tube type heat exchanger and the like, and is equipment for realizing heat exchange between fluid in a heat exchange tube and fluid positioned in a shell and outside the heat exchange tube through the heat exchange tube.

The prior Chinese patent with publication number CN201945229U discloses a fixed tube plate heat exchanger with a groove on the surface of a base tube, which comprises a shell, wherein tube boxes are respectively arranged at two ends of the shell, a cold fluid inlet is arranged at the upper part of one tube box, a drain outlet is arranged at the lower part of the other tube box, and a cold fluid outlet is arranged at the lower part of the other tube box; a hot fluid inlet is arranged at the upper part of the shell close to the cold fluid inlet, and a hot fluid outlet is arranged at the lower part of the shell close to the cold fluid outlet; tube plates are respectively fixedly connected to the positions of the two ends of the shell in the shell; the shell is internally provided with heat exchange tubes distributed along the length direction of the shell, and two ends of each heat exchange tube are respectively arranged in the shell through tube plates. When the heat exchanger works, cold fluid is input from the cold fluid inlet, enters a space formed by the tube box and the tube plate, flows into the heat exchange tube, flows to the other tube box, is discharged from the cold fluid outlet, and enters the heat exchanger from the cold fluid inlet after being cooled. The hot fluid enters the shell from the hot fluid, and exchanges heat with the cold fluid in the heat exchange tube through the heat exchange tube, and the hot fluid is discharged from the hot fluid outlet, so that the heat exchange of the two fluids is realized.

Cold fluids are typically cooled by dedicated equipment or naturally cooled. Impurities such as rust fragments and scale of the special equipment can fall off and are mixed into cold fluid due to vibration and the like in the running process of the equipment; in the natural cooling process, foreign matters such as foreign matters and water scale possibly fall into the container from the opening of the container from the outside or are possibly mixed into the cold fluid. The heat exchange tube has smaller aperture and longer length, so that sundries are difficult to discharge and easy to block, thereby influencing the heat exchange efficiency of the heat exchange tube and needing to be improved.

SUMMERY OF THE UTILITY MODEL

In order to reduce the debris that get into in the cold fluid of heat exchange tube, this application provides a take filtering capability's tubular heat exchanger.

The application provides a take filtering capability's tubular heat exchanger adopts following technical scheme:

a tube type heat exchanger with a filtering function comprises a shell, wherein one end of the shell is connected with a tube box with a cold fluid inlet and a drain outlet, and a bearing ring is fixedly arranged on the inner side wall of the tube box and between the cold fluid inlet and the end wall of the opening of the tube box along the circumferential direction of the tube box; a filter screen for filtering sundries in cold fluid is arranged in the pipe box, an installation ring is arranged on the periphery of the filter screen, and the end wall of the installation ring is attached to the end wall of the bearing ring facing the opening direction of the pipe box; the mounting ring is connected with a slide bar used for fixing the mounting ring in a sliding manner, and an inserting groove for inserting one end of the slide bar is formed in the inner side wall of the tube box.

By adopting the technical scheme, the cold fluid is filtered through the filter screen, impurities entering the cold fluid in the heat exchange tube are reduced, the risk of blocking the heat exchange tube is reduced, and therefore the service efficiency of the heat exchange tube is improved. The bearing ring plays the axial positioning and butt effect to the collar, and the end wall of collar and the end wall laminating of bearing ring, the slide bar inserts and realizes the fixed of collar promptly in the slot, and then realizes the installation and the fixed of filter screen, convenient operation, swift. The filter screen can be dismantled, is convenient for clean filter screen and pipe case inside wall.

Optionally, the mounting ring deviates from the end wall fixedly connected with fixed block that holds the ring direction, the fixed block has run through along the pipe case is radial to be seted up the hole that slides, the slide bar is worn to locate the hole that slides and is connected with the fixed block that slides.

Through adopting above-mentioned technical scheme, the slide bar passes through the fixed block to realize being connected with sliding of collar, avoids slotting on the collar, has guaranteed the intensity of collar.

Optionally, a limit ring is fixedly arranged on the side wall of the slide rod in the sliding hole, a limit groove for sliding the limit ring is arranged on the side wall of the sliding hole, and the limit groove is communicated with the sliding hole.

Through adopting above-mentioned technical scheme, the spacing ring slides in the spacing inslot to restricted the distance that the slide bar slided, prevented that slide bar and slide hole break away from or lose, therefore influenced the installation and the use of filter screen.

Optionally, an elastic element for driving the sliding rod to slide towards the slot direction is arranged between the side wall of the limiting ring and the side wall of the limiting groove.

Through adopting above-mentioned technical scheme, the elastic component drive slide bar slides to the slot direction and makes the end wall of slide bar and the diapire of slot laminate mutually, has improved slide bar and slot complex stability.

Optionally, the fixed block is provided with a plurality of blocks along the circumferential direction of the mounting ring.

Through adopting above-mentioned technical scheme, a plurality of inserted bars insert the slot, realize the fixed of collar, have improved the end wall of collar and the compactness of accepting the laminating of ring end wall, guarantee the filtering action of filter screen.

Optionally, a plurality of end walls of the sliding rods, which deviate from the corresponding slot direction, are respectively connected with an operation rope, one end of each operation rope, which is far away from the corresponding sliding rod, is respectively connected with an operation ring for inserting a finger, and all the operation rings are jointly connected with a flexible ring for keeping all the operation ropes in a tensioned state.

Through adopting above-mentioned technical scheme, when needs dismantle the filter screen, the finger inserts respectively in the operation ring, through holding the finger tightly, makes operation ring installation ring circumferential direction remove, drives the slide bar through the operation rope and removes, and then makes slide bar and slot break away from. And then the operation ring is pulled outwards until the filter screen is completely positioned outside the pipe box, so that the filter screen is detached, and the operation is convenient.

Optionally, the sliding rod is inserted into the end wall of the insertion slot and is provided with a guide surface at one side facing the direction of the mounting ring in an inclined manner.

Through adopting above-mentioned technical scheme, during the filter screen installation, the spigot surface offsets with the end wall of pipe case at first, continues the inside filter screen that moves, and the end wall of pipe case has the effort that makes the slide bar move to pipe case axis direction to the slide bar through the spigot surface, and the slide bar withdrawal continues to move the filter screen, aligns until slide bar and jack, and the slide bar inserts in the slot under the elastic component effect, realizes the installation and the fixed of filter screen.

Optionally, the inside wall of the pipe box is provided with a positioning groove along the axial direction of the pipe box, and the outer peripheral wall of the mounting ring is provided with a positioning block which can be matched with the positioning groove in a sliding manner.

Through adopting above-mentioned technical scheme, the cooperation of sliding of locating piece and constant head tank realizes the axial positioning of collar, and the slide bar of being convenient for aligns with the slot, makes things convenient for the installation of filter screen.

Optionally, the receiving ring is located between the drain opening and the end wall at the opening of the pipe box.

Through adopting above-mentioned technical scheme, debris in the cold fluid, through the separation of filter screen, pile up between filter screen and pipe case diapire. The pipe box is convenient to operate, timely and quick cleaning of the sundries in the pipe box is facilitated, and the sundries are prevented from being accumulated and blocking the filter screen.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the filter screen which is detachably arranged plays a role in filtering sundries in cold fluid, reduces sundries entering fluid in the heat exchange tube, reduces the risk of blocking the heat exchange tube, improves the use stability of the heat exchanger and ensures the heat exchange efficiency of the heat exchanger; on the other hand, filtered sundries are convenient to clean from the pipe box, and the filter screen is prevented from being blocked by the sundries to influence the use of the filter screen;

2. the operating ring is inserted by fingers, and the fingers are held tightly to separate the sliding rod from the slot, so that the filter screen and the pipe box are quickly disassembled, and the operation is convenient;

3. sundries can be discharged through the clean discharge port without disassembling and assembling the pipe box, and the sundries are easy and convenient to clean.

Drawings

Fig. 1 is a schematic view of the overall structure of the tube heat exchanger with a filtering function according to the present embodiment.

Fig. 2 is a sectional view for showing the internal structure of the tube heat exchanger with the filtering function according to the embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view for illustrating a manner of mounting the filter screen and the tube box.

Fig. 5 is a sectional view for showing the sliding engagement of the slide bar with the fixed block.

Description of reference numerals: 1. a housing; 11. a hot fluid inlet; 12. a hot fluid outlet; 13. a tube sheet; 131. a heat exchange pipe; 14. a baffle plate; 2. a pipe box; 21. a cold fluid inlet; 22. a discharge port; 221. an end cap; 23. a cold fluid outlet; 24. a bearing ring; 25. positioning a groove; 26. a slot; 3. a mounting ring; 31. positioning blocks; 32. a fixed block; 321. a sliding hole; 322. a limiting groove; 4. a slide bar; 41. a limiting ring; 42. an elastic member; 43. a guide surface; 44. a connecting ring; 441. operating a rope; 5. an operating ring; 51. a flexible ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a tubular heat exchanger with a filtering function. Referring to fig. 1, the tubular heat exchanger with a filtering function includes a casing 1, the casing 1 is tubular with two open ends, and two ends of the casing 1 are respectively and fixedly connected with a tube box 2 through flanges. The upper part of the pipe box 2 at one end of the shell 1 is provided with a cold fluid inlet 21, the lower part is provided with a drain port 22, and the drain port 22 is fixedly connected with an end cover 221 through a flange. A cold fluid outlet 23 is provided at the lower part of the header 2 at the other end of the housing 1. The upper part of the shell 1 is provided with a hot fluid inlet 11 near the cold fluid inlet 21, and the lower part of the shell 1 is provided with a hot fluid outlet 12 near the cold fluid outlet 23.

Referring to fig. 2, the shell 1 is located at two ends of the shell 1, and the tube plates 13 are respectively welded and fixed to the two ends of the shell 1, and the tube plates 13 penetrate through the shell along the thickness direction of the tube plates 13 to form a plurality of through holes. The inner side wall of the shell 1 is positioned between the two tube plates 13, a plurality of baffle plates 14 are welded and fixed at intervals, the two adjacent baffle plates 14 are arranged in a staggered mode in the vertical direction, and the baffle plates 14 penetrate through the tube plates 13 in the thickness direction and are provided with a plurality of through holes corresponding to the through holes in the tube plates 13. The heat exchange tube 131 is inserted from the through hole of the tube plate 13 from one end of the shell 1, sequentially passes through the through holes on the baffle plates 14 along the horizontal direction, and is finally inserted into the through hole of the tube plate 13 at the other end of the shell 1, two ends of the heat exchange tube 131 are respectively positioned in the through holes of the tube plate 13, and the heat exchange tube 131 and the tube plate 13 are fixed through welding or expansion joint, so that the fixed installation of the heat exchange tube 131 is realized.

Referring to fig. 2 and 3, a receiving ring 24 is welded and fixed to the inner side wall of the header 2 where the cold fluid inlet 21 is provided along the circumferential direction of the header 2, the receiving ring 24 is located between the cold fluid inlet 21 and the end wall of the header 2 at the opening, and the receiving ring 24 is located between the drain port 22 and the end wall of the header 2 at the opening. A filter screen (not shown in the figure) for filtering sundries in the cold fluid is arranged in the pipe box 2, the filter screen is a metal filter screen, and the sundries filtered by the filter screen can be discharged from the drain port 22.

Referring to fig. 2 and 4, a mounting ring 3 is welded and fixed to the periphery of the filter screen, a positioning block 31 is welded and fixed to the outer peripheral wall of the mounting ring 3, a positioning groove 25 is formed in the inner side wall of the pipe box 2 in the axial direction of the pipe box, and the positioning block 31 can be in sliding fit with the positioning groove 25. The end wall welded fastening that the collar 3 deviates from the 24 directions of bearing ring has a plurality of fixed blocks 32, and in this embodiment, fixed block 32 quantity is 5, and along 3 circumference evenly distributed of collar, and all fixed blocks 32 are equallyd divide and are slided respectively and be connected with the slide bar 4 that is used for fixed mounting ring 3, and slide bar 4 is the rectangular pole.

Referring to fig. 4 and 5, a sliding hole 321 is formed in the fixed block 32 along the radial direction of the tube box 2, and the sliding hole 321 is a rectangular hole adapted to the sliding rod 4. The sliding rod 4 penetrates through the sliding hole 321 to be connected with the fixing block 32 in a sliding mode, and therefore the sliding rod 4 is connected with the mounting ring 3 in a sliding mode. The inner side wall of the tube box 2 is provided with a slot 26 for inserting one end of the slide bar 4.

Referring to fig. 4 and 5, when the filter screen is installed, the positioning block 31 is aligned with the positioning groove 25, the filter screen is moved into the tube box 2 by the sliding fit of the positioning block 31 and the positioning groove 25, and when the end wall of the installation ring 3 is attached to the end wall of the receiving ring 24 facing the opening direction of the tube box 2, the sliding rod 4 is inserted into the slot 26, so that the installation and fixation of the filter screen are realized.

Referring to fig. 5, a limiting ring 41 is welded and fixed on the side wall of the sliding rod 4 located in the sliding hole 321, and the limiting ring 41 is a circular ring plate. The inside wall of the fixing block 32 is provided with a limiting groove 322 for the limiting ring 41 to slide, and the limiting groove 322 and the sliding groove are in a barrel shape. An elastic piece 42 is arranged between the side wall of the limiting ring 41 far away from the direction of the slot 26 and the side wall of the limiting groove 322 facing the direction of the slot 26, the elastic piece 42 is a spring, the sliding rod 4 is sleeved with the spring, two ends of the spring respectively abut against the side wall of the limiting ring 41 and the side wall of the limiting groove 322 so as to drive the sliding rod 4 to move towards the direction of the slot 26 to enable the end wall of the sliding rod 4 to abut against the bottom wall of the slot 26, the sliding rod 4 is prevented from being separated from the slot 26, and the stability of the insertion fit of.

Referring to fig. 4 and 5, the slide rod 4 is inserted into the end wall of the insertion slot 26 and is provided with a guide surface 43 at an inclination toward the mounting ring 3. When the filter screen is installed in the pipe box 2, the guide surface 43 first abuts against the end wall of the pipe box 2, the filter screen is continuously moved inwards, the slide rod 4 is retracted into the sliding hole 321 by the end wall of the pipe box 2 through the guide surface 43 until the end wall of the mounting ring 3 is attached to the end wall of the bearing ring 24, the slide rod 4 is aligned with the slot 26, and the slide rod 4 is inserted into the slot 26 under the action of the elastic piece 42.

Referring to fig. 4, the connecting rings 44 are welded and fixed to end walls of all the sliding rods 4 facing away from the corresponding slots 26, the operating ropes 441 are tied on the connecting rings 44, and the operating rings 5 are tied to the other ends of the operating ropes 441 facing away from the corresponding sliding rods 4. A connecting rope is commonly arranged in all the operation rings 5 in a penetrating mode, the connecting ropes are connected end to form a flexible ring 51, and all the operation ropes 441 are kept in a tensioning state through the flexible ring 51.

Referring to fig. 4 and 5, when the filter screen needs to be disassembled, the fingers of the operator are inserted into the operating ring 5, and the sliding rod 4 is separated from the slot 26 by holding the fingers tightly, so that the operation is convenient.

The implementation principle of the tubular heat exchanger with the filtering function in the embodiment of the application is as follows:

when the tubular heat exchanger works, cold fluid is introduced from the cold fluid inlet 21, enters the tube box 2, is filtered by the filter screen, flows into the heat exchange tube 131, flows to the tube box 2 at the other end of the shell 1 through the heat exchange tube 131, and is discharged from the cold fluid outlet 23. The cold fluid is cooled by a special cooling device or naturally cooled and then enters the header 2 again through the cold fluid inlet 21 to form a circulating flow of the cold fluid.

The hot fluid enters the shell 1 through the hot fluid inlet 11, flows in the shell 1 through the baffle plate 14, and simultaneously, the hot fluid and the cold fluid perform heat exchange through the heat exchange tube 131, so that the temperature of the hot fluid is reduced. The hot fluid is discharged from the hot fluid outlet 12 to complete the primary heat exchange. In actual use, the hot fluid can enter the shell 1 through the hot fluid inlet 11 after being discharged from the hot fluid outlet 12, so that the circulating heat exchange between the hot fluid and the cold fluid is realized.

After the tubular heat exchanger is used for a period of time, the cold fluid inlet 21 can be closed, the end cover 221 is opened, cold fluid in the heat exchanger is discharged, meanwhile, sundries filtered by the filter screen can be discharged, and then the end cover 221 is covered for normal use. If the filter screen needs to be deeply cleaned, the pipe box 2 is firstly detached from the shell 1, fingers are inserted into the operating ring 5, and the filter screen can be rapidly detached by holding the fingers tightly.

Through the filtering action of the arranged filter screen on the cold fluid entering the heat exchange tube 131, impurities in the cold fluid entering the heat exchange tube 131 are reduced, the risk of blockage of the heat exchange tube 131 is reduced, the service efficiency of the heat exchange tube 131 is improved, and further the heat exchange efficiency of the tubular heat exchanger is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a take filtering capability's tubular heat exchanger, includes casing (1), casing (1) wherein one end is connected with tub case (2) of taking cold fluid import (21) and drain (22), its characterized in that: a bearing ring (24) is fixedly arranged on the inner side wall of the pipe box (2) and between the cold fluid inlet (21) and the end wall of the opening of the pipe box (2) along the circumferential direction of the pipe box (2); a filter screen for filtering sundries in cold fluid is arranged in the pipe box (2), an installation ring (3) is arranged on the periphery of the filter screen, and the end wall of the installation ring (3) is attached to the end wall of the bearing ring (24) facing the opening direction of the pipe box (2); the mounting ring (3) is connected with a sliding rod (4) used for fixing the mounting ring (3) in a sliding mode, and a slot (26) for inserting one end of the sliding rod (4) is formed in the inner side wall of the tube box (2).

2. The tube heat exchanger with filtering function according to claim 1, wherein: the end wall that mounting ring (3) deviates from and holds and connect ring (24) direction is fixed with fixed block (32), fixed block (32) radially run through along pipe case (2) and have seted up hole of sliding (321), slide bar (4) are worn to locate hole of sliding (321) and fixed block (32) and are slided and be connected.

3. The tube heat exchanger with filtering function according to claim 2, wherein: the sliding rod (4) is located the fixed spacing ring (41) that is provided with of lateral wall in the hole (321) that slides, the hole (321) inside wall that slides is provided with and supplies spacing groove (322) that spacing ring (41) slided, spacing groove (322) communicate with each other with the hole (321) that slides.

4. The tube heat exchanger with filtering function according to claim 3, wherein: an elastic piece (42) for driving the sliding rod (4) to slide towards the direction of the slot (26) is arranged between the side wall of the limiting ring (41) and the side wall of the limiting groove (322).

5. The tube heat exchanger with filtering function according to claim 4, wherein: the fixed blocks (32) are provided with a plurality of groups along the circumferential direction of the mounting ring (3).

6. The tube heat exchanger with filtering function according to claim 5, wherein: the end walls of the plurality of the sliding rods (4) departing from the direction of the corresponding slots (26) are respectively connected with operation ropes (441), one ends of all the operation ropes (441) far away from the corresponding sliding rods (4) are respectively connected with operation rings (5), and all the operation rings (5) are jointly connected with flexible rings (51) which enable all the operation ropes (441) to keep a tensioning state.

7. The tube heat exchanger with filtering function according to claim 4, wherein: the sliding rod (4) is inserted into the end wall of the insertion groove (26) and is obliquely provided with a guide surface (43) at one side facing the direction of the mounting ring (3).

8. The tube heat exchanger with filtering function according to claim 1, wherein: locating slot (25) have been seted up along the pipe case axial to pipe case (2) inside wall, the periphery wall of collar (3) is provided with can slide complex locating piece (31) with locating slot (25).

9. The tube heat exchanger with filtering function according to claim 1, wherein: the bearing ring (24) is positioned between the cleaning opening (22) and the end wall at the opening of the pipe box (2).