CN220689857U - Double-pipe heat exchanger - Google Patents

Abstract

The utility model discloses a double-pipe heat exchanger, which comprises a heat exchange coil group, wherein a connecting pipe for connecting a water pipe is arranged on the outer side of the heat exchange coil group, a clamping assembly for fixing an external water pipe is arranged on the connecting pipe, and a sealing ring gasket is arranged in an inner cavity of the connecting pipe; the clamping assembly comprises two clamping plate pieces symmetrically arranged on the connecting pipe, and is also provided with an adjusting piece for driving the two clamping plate pieces to synchronously move in opposite directions or in opposite directions and a guide piece for limiting the clamping plate pieces; through twisting the knob, under the screw thread effect, can drive two splint spare on the corresponding two-way double-screw bolt and move in opposite directions or in opposite directions along the axial direction of two-way double-screw bolt, the rethread guide piece is spacing for two splint spare move steadily, use through the cooperation of regulating part and guide piece, realize two splint spare on the connecting pipe and move in opposite directions or in opposite directions in step, have the advantage that the water pipe butt joint operation is simple convenient, effectively saved the manpower and the time of water pipe butt joint, further improved work efficiency.

Description

Double-pipe heat exchanger

Technical Field

The utility model relates to the technical field of double pipe heat exchangers, in particular to a double pipe heat exchanger.

Background

The double-pipe heat exchanger is widely used as heat transfer equipment, particularly in industry, and with the development of technology, the double-pipe heat exchanger has more and more functions, and the double-pipe heat exchanger achieves the heat exchange effect by reversely flowing two different mediums in a pipe.

The patent document with the prior publication number of CN218821794U discloses a high-temperature and high-pressure double-pipe heat exchanger, which is further convenient for bearing high temperature and high pressure and is convenient for fixing and conveying heat exchange media by arranging an outer pipe and an inner pipe, rotating an adjusting nut, transversely moving the adjusting nut on an adjusting rod through threads arranged on the inner side, enabling one end of the adjusting nut to leave the outer side of a clamping plate, conveniently enabling the clamping plate to transversely slide on a fixed joint, enabling the distance between the two clamping plates to be larger than the width of a hot water pipe, conveniently connecting one end of the hot water pipe with the fixed joint, reversely rotating the adjusting nut, enabling one end of the adjusting nut to prop against the clamping plate, enabling the two clamping plates to clamp the hot water pipe, fixing the positions of the two clamping plates, sealing gaps between the hot water pipe and the fixed joint, avoiding hot water flowing out of the gaps, enabling the fixed joint above to be connected with the hot water pipe to be conveyed into the inner pipe, and the fixed joint below to be connected with a cold water pipe to be conveyed into the outer pipe, and enabling two media with different temperatures to reversely flow in the pipe, and therefore the purpose of heat exchange is achieved.

Although the high-temperature high-pressure double pipe heat exchanger can solve the corresponding technical problems, when two clamping plates on the fixed joint are spaced, the corresponding adjusting nuts on the two adjusting rods are needed to be unscrewed in sequence, so that the clamping plates are moved after the adjusting nuts leave the outer sides of the clamping plates, when a water pipe is clamped, a plurality of adjusting nuts are needed to be screwed in sequence, the operation steps are complicated, and the butt joint efficiency of the water pipe is reduced.

Disclosure of Invention

The present utility model is directed to a double pipe heat exchanger for solving the above-mentioned problems of the prior art.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a double pipe heat exchanger comprising:

the heat exchange coil group is provided with a connecting pipe for connecting a water pipe on the outer side, a clamping assembly for fixing an external water pipe is arranged on the connecting pipe, and a sealing ring gasket is arranged in an inner cavity of the connecting pipe;

the clamping assembly comprises two clamping plate pieces symmetrically arranged on the connecting pipe, and an adjusting piece for driving the two clamping plate pieces to synchronously move in opposite directions or move in opposite directions and a guide piece for limiting the clamping plate pieces are further arranged on the connecting pipe.

As the preferable technical scheme, the heat exchange coil group comprises an outer tube, an inner tube is embedded in the inner cavity of the outer tube, a water gap is formed between the outer tube and the inner tube, and the connecting tube is arranged on the outer side of the outer tube.

As the preferable technical scheme, a plurality of brackets which are distributed at equal intervals are glued between the outer tube and the inner tube, and a plurality of brackets are arranged in a staggered way.

As the preferable technical scheme, the clamping plate comprises an arc-shaped plate movably connected to the connecting pipe, and a rubber strip is glued on the inner wall surface of the arc-shaped plate.

As the preferable technical scheme, the regulating piece comprises two first protruding blocks which are fixedly connected to the connecting pipe and symmetrically arranged, one side of one first protruding block is rotationally connected with a bidirectional stud, one end of the bidirectional stud movably penetrates through one side of the other first protruding block, two sides of the surface of the bidirectional stud are connected with threaded sleeves in a threaded manner, and one side of each threaded sleeve is integrally formed with a corresponding arc-shaped plate.

As the preferable technical scheme, one end of the bidirectional stud is fixedly connected with a knob.

As the preferable technical scheme, the guide piece includes two second lugs that fixed connection just is the symmetry setting on the connecting pipe, two fixedly connected with guide pillar between the second lug, the both sides on guide pillar surface all sliding connection has the sliding sleeve, one side and the arc integrated into one piece that corresponds of sliding sleeve.

The utility model has at least the following beneficial effects:

the two clamping plate parts on the corresponding bidirectional stud can be driven to synchronously move along the axial direction of the bidirectional stud or move back to back under the action of threads by screwing the knob, and then the two clamping plate parts are limited by the guide part, so that the two clamping plate parts stably move, and the two clamping plate parts on the connecting pipe can synchronously move towards each other or move back to back through the matched use of the adjusting part and the guide part.

Drawings

FIG. 1 is a schematic view of a double pipe heat exchanger according to the present utility model;

FIG. 2 is a schematic view of a heat exchange coil assembly of a double pipe heat exchanger of the present utility model in a cut-away view;

fig. 3 is a perspective view showing a connection structure of a connection tube and a clamping assembly of a double pipe heat exchanger according to the present utility model.

In the figure: 1. a heat exchange coil group; 11. an outer tube; 12. an inner tube; 13. a bracket; 2. a connecting pipe; 3. a clamping assembly; 31. a clip member; 311. an arc-shaped plate; 312. a rubber strip; 32. an adjusting member; 321. a first bump; 322. a two-way stud; 323. a screw sleeve; 324. a knob; 33. a guide member; 331. a second bump; 332. a guide post; 333. a sliding sleeve; 4. and a sealing ring gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an embodiment of the present utility model provides a double pipe heat exchanger, comprising: the heat exchange coil assembly 1, a connecting pipe 2 for connecting water pipes, a clamping assembly 3 for fixing an external water pipe and a sealing gasket 4, wherein the connecting pipe 2 is arranged at the outer side of the heat exchange coil assembly 1, the clamping assembly 3 is arranged on the connecting pipe 2, and the sealing gasket 4 is arranged in the inner cavity of the connecting pipe 2; the clamping assembly 3 comprises two clamping plate pieces 31 symmetrically arranged on the connecting pipe 2, and the connecting pipe 2 is also provided with an adjusting piece 32 for driving the two clamping plate pieces 31 to synchronously move in opposite directions or move in opposite directions and a guide piece 33 for limiting the clamping plate pieces 31.

The heat exchange coil group 1 comprises an outer tube 11, an inner tube 12 is embedded in the inner cavity of the outer tube 11, a water gap is formed between the outer tube 11 and the inner tube 12, and the connecting tube 2 is arranged on the outer side of the outer tube 11.

Wherein, a plurality of brackets 13 which are distributed equidistantly are glued between the outer tube 11 and the inner tube 12, and a plurality of brackets 13 are arranged in a staggered way. The bracket 13 is used for avoiding the outer wall of the inner pipe 12 from being attached to the inner wall of the outer pipe 11, so that the flux of the water passing gap is further ensured.

The clamping plate 31 comprises an arc plate 311 movably connected to the connecting pipe 2, and a rubber strip 312 is glued on the inner wall surface of the arc plate 311. The rubber strips 312 can not only increase the friction force between the arc plate 311 and the external water pipe and improve the fixing effect of the arc plate 311, but also avoid the abrasion phenomenon caused by the direct contact of the arc plate 311 and the external water pipe, thereby playing a role in protection.

Wherein, the adjusting member 32 includes two first protruding blocks 321 fixedly connected to the connecting pipe 2 and symmetrically arranged, one side of one first protruding block 321 is rotatably connected with a bidirectional stud 322 through a bearing, one end of the bidirectional stud 322 movably penetrates through one side of the other first protruding block 321, two sides of the surface of the bidirectional stud 322 are both in threaded connection with a threaded sleeve 323, and one side of the threaded sleeve 323 and the corresponding arc plate 311 are integrally formed. By rotating the bidirectional stud 322, the bidirectional stud 322 drives the corresponding two clamping plate members 31 to move in opposite directions or move in opposite directions under the action of opposite threads, so that the effect of convenient adjustment is achieved.

Wherein, one end of the bi-directional stud 322 is fixedly connected with a knob 324. The bi-directional stud 322 is conveniently rotated using the knob 324.

The guiding member 33 includes two second protruding blocks 331 fixedly connected to the connecting pipe 2 and symmetrically arranged, a guide post 332 is fixedly connected between the two second protruding blocks 331, sliding sleeves 333 are slidably connected to two sides of the surface of the guide post 332, and one side of each sliding sleeve 333 is integrally formed with a corresponding arc plate 311. When the clamping plate 31 moves, the clamping plate 31 can drive the sliding sleeve 333 to slide on the surface of the guide post 332, so as to guide the clamping plate 31, and effectively avoid the synchronous rotation of the clamping plate 31 along with the bidirectional stud 322.

The working principle of the utility model is as follows: by screwing the knob 324, the knob 324 drives the bidirectional stud 322 to rotate, under the action of opposite threads, the bidirectional stud 322 drives the two threaded sleeves 323 on the surface of the bidirectional stud 322 to move oppositely, the threaded sleeves 323 drive the arc plates 311 and the sliding sleeve 333 to move synchronously, the sliding sleeve 333 slides on the surface of the guide post 332, the distance between the two clamping plate pieces 31 on the connecting pipe 2 is adjusted to be larger than the diameter of an external water pipe, one end of the external water pipe is communicated with the connecting pipe 2, and then the knob 324 is screwed reversely, so that the two arc plates 311 on the connecting pipe 2 clamp the external water pipe to fix the position of the external water pipe, the connecting pipe 2 positioned above is connected into the inner pipe 12, the connecting pipe 2 positioned below is connected into a water through gap, and two mediums with different temperatures reversely flow in the heat exchange coil pipe group 1, thereby achieving the purpose of heat exchange.

None of the utility models are related to the same or are capable of being practiced in the prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A double pipe heat exchanger comprising:

the heat exchange coil group (1) is provided with a connecting pipe (2) for connecting a water pipe on the outer side, the connecting pipe (2) is provided with a clamping assembly (3) for fixing an external water pipe, and the inner cavity of the connecting pipe (2) is provided with a sealing gasket (4);

the clamping assembly (3) comprises two clamping plate pieces (31) symmetrically arranged on the connecting pipe (2), and an adjusting piece (32) for driving the two clamping plate pieces (31) to synchronously move in opposite directions or move in opposite directions and a guide piece (33) for limiting the clamping plate pieces (31) are further arranged on the connecting pipe (2).

2. A double pipe heat exchanger according to claim 1, wherein: the heat exchange coil group (1) comprises an outer tube (11), an inner tube (12) is embedded in the inner cavity of the outer tube (11), a water passing gap is formed between the outer tube (11) and the inner tube (12), and the connecting tube (2) is arranged on the outer side of the outer tube (11).

3. A double pipe heat exchanger according to claim 2, wherein: a plurality of brackets (13) which are distributed at equal intervals are glued between the outer tube (11) and the inner tube (12), and a plurality of brackets (13) are arranged in a staggered manner.

4. A double pipe heat exchanger according to claim 1, wherein: the clamping plate (31) comprises an arc-shaped plate (311) movably connected to the connecting pipe (2), and a rubber strip (312) is glued on the inner wall surface of the arc-shaped plate (311).

5. A double pipe heat exchanger as defined in claim 4, wherein: the adjusting piece (32) comprises two first protruding blocks (321) which are fixedly connected to the connecting pipe (2) and symmetrically arranged, one side of each first protruding block (321) is rotationally connected with a two-way stud (322), one end of each two-way stud (322) movably penetrates through one side of the corresponding first protruding block (321), two sides of the surface of each two-way stud (322) are connected with threaded sleeves (323) in a threaded mode, and one side of each threaded sleeve (323) and the corresponding arc plate (311) are integrally formed.

6. A double pipe heat exchanger as defined in claim 5, wherein: one end of the bidirectional stud (322) is fixedly connected with a knob (324).

7. A double pipe heat exchanger according to claim 1, wherein: the guide piece (33) comprises two second convex blocks (331) which are fixedly connected to the connecting pipe (2) and symmetrically arranged, a guide pillar (332) is fixedly connected between the second convex blocks (331), sliding sleeves (333) are slidably connected to two sides of the surface of the guide pillar (332), and one side of each sliding sleeve (333) is integrally formed with a corresponding arc-shaped plate (311).