Detachable heat exchange coil connecting device

Abstract

The utility model relates to the field of evaporative condensers, in particular to a detachable heat exchange coil pipe connecting device which comprises a heat exchange pipe, a connecting pipe and a connecting part. The connecting part comprises a sleeve, a fixing block and a spring; one side of the sleeve is rotationally connected with the connecting pipe, a telescopic groove is formed in the other side of the sleeve, the fixing block is slidably arranged in the telescopic groove, one end of the fixing block is connected with the groove bottom of the telescopic groove through a spring, and the outer side of the other end of the fixing block is arranged obliquely inwards; fixing grooves are formed in the outer sides of the connecting ends of the heat exchange pipes and matched with the fixing blocks. The problem that the heat exchange coil is troublesome to disassemble and assemble is effectively solved. And the dismounting operation is simple, convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the field of evaporative condensers, in particular to a detachable heat exchange coil connecting device. Background Art

[0002] At present, evaporative condensers are widely used in many industries such as chemical, pharmaceutical, and food, and their role is irreplaceable in modern industry.

[0003] Since the evaporative condenser operates non-stop throughout the year, the operating environment of the equipment may be corrosive fluids, gas friction or slight vibration friction, which may cause leakage in the heat exchange coil. Once the heat exchange coil leaks, it must be shut down and replaced, which is troublesome and time-consuming.

[0004] A condenser heat exchange coil fixing device proposed in Chinese patent application number CN 202322553126.9 solves the above problems, but the limit rod needs to be inserted into the limit through hole. Since the limit rod is located inside the threaded sleeve, it is not easy to see during installation, requiring multiple attempts, and the operation is relatively inefficient.

[0005] At present, no technical solution that can solve the above technical problems has been found in the existing public technologies. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a detachable heat exchange coil connection device in view of the above shortcomings. Compared with the prior art, the detachable setting of the heat exchange coil is realized, and the operation is simple and efficient.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A detachable heat exchange coil connection device comprises a heat exchange tube, a connecting tube and a connecting part; the connecting part comprises a sleeve, a fixing block and a spring; one side of the sleeve is rotatably connected to the connecting tube, a telescopic groove is provided inside the other side of the sleeve, the fixing block is slidably provided in the telescopic groove, one end of the fixing block is connected to the bottom of the telescopic groove through the spring, and the outer side of the other end of the fixing block is obliquely provided inwardly; a fixing groove is provided on the outer side of the connecting end of the heat exchange tube, and the fixing groove cooperates with the fixing block.

[0009] Furthermore, the fixing groove is arranged in an arc shape along the outer circumference of the heat exchange tube, and the heat exchange tube is provided with a through groove matching the fixing block, one end of the through groove is connected to the fixing groove, and the other end of the through groove is connected to the end face of the connecting end of the heat exchange tube.

[0010] Furthermore, a first indicator line is provided on a side of the through groove away from the connecting end of the heat exchange tube, and a second indicator line is provided on the outer side of the sleeve at a position corresponding to the fixing block.

[0011] Furthermore, an electromagnet is provided at the bottom of the telescopic slot, and the fixing block is made of an armature.

[0012] Furthermore, a limiting ring is fixedly provided on the inner side of the sleeve, and the limiting ring matches with the end face of the connecting end of the heat exchange tube.

[0013] Furthermore, the sleeve is provided with a plurality of expansion slots symmetrically in the circumferential direction.

[0014] Furthermore, a first sealing ring is provided between the heat exchange tube and the sleeve, and a second sealing ring is provided between the connecting tube and the sleeve.

[0015] The utility model adopts the above technical solution, and has the following advantages compared with the prior art:

[0016] The setting of the connecting part realizes the detachable setting between the heat exchange tube and the connecting tube; the fixing block is driven to rotate by rotating the sleeve, so that the fixing block can more easily enter the fixing groove set on the heat exchange tube, thereby realizing the connection between the heat exchange tube and the connecting tube, which is easy and efficient to operate.

[0017] The provision of the through groove and the arc-shaped fixing groove makes the disassembly of the heat exchange tube more convenient.

[0018] The setting of the electromagnet makes the disassembly of the heat exchange tube more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the detachable heat exchange coil connection device of the utility model. Figure 1 ;

[0020] Figure 2 It is a schematic diagram of the heat exchange tube in the detachable heat exchange coil connection device of the utility model. Figure 1 ;

[0021] Figure 3 This is a cross-sectional view of the detachable heat exchange coil connection device of the utility model. Figure 2 ;

[0022] Figure 4 It is a three-dimensional diagram of the heat exchange tube in the detachable heat exchange coil connection device of the utility model;

[0023] Figure 5 It is a schematic diagram of the heat exchange tube in the detachable heat exchange coil connection device of the utility model. Figure 2 .

[0024] In the figure:

[0025] 1-heat exchange tube, 2-connecting tube, 3-sleeve, 4-fixing block, 5-spring, 6-telescopic slot, 7-fixing slot, 8-through slot, 10-first indicator line, 11-electromagnet, 12-limiting ring, 13-first sealing ring, 14-second sealing ring. DETAILED DESCRIPTION

[0026] like Figure 1-5 A detachable heat exchange coil connection device shown includes a heat exchange tube 1, a connecting tube 2 and a connecting part; the connecting part includes a sleeve 3, a fixed block 4 and a spring 5. One side of the sleeve 3 is rotatably connected to the connecting tube 2 through a bearing, and a telescopic groove 6 is provided inside the other side of the sleeve 3. The telescopic groove 6 is arranged along the radial direction of the sleeve 3. In order to make the telescopic groove 6 and the subsequent connection with the spring 5 easier to process, the telescopic groove 6 can be arranged as a through hole, and the outside of the through hole is blocked with a plug. The fixed block 4 is slidably arranged in the telescopic groove 6, and one end of the fixed block 4 is connected to the bottom of the telescopic groove 6 through the spring 5. The outer side of the other end of the fixed block 4 is arranged obliquely inward. In a normal state, the inclined end of the fixed block 4 extends out of the telescopic groove 6. A fixed groove 7 is provided on the outer side of the connecting end of the heat exchange tube 1, and the fixed groove 7 cooperates with the fixed block 4, such as Figure 2 As shown, the fixing groove 7 is a square groove.

[0027] In order to make the connection between the heat exchange tube 1 and the connecting tube 2 more firmly, a plurality of expansion slots 6 are symmetrically arranged in the circumferential direction on the sleeve 3, and four expansion slots 6 can be arranged, which are evenly arranged along the circumferential direction of the sleeve 3. Thus, four groups of fixing blocks 4 and springs 5 ​​fix the heat exchange tube 1 and the connecting tube 2; of course, the expansion slots 6, fixing blocks 4 and springs 5 ​​can also be arranged in 2 groups, 3 groups, or more than 5 groups.

[0028] Insert the heat exchange tube 1 into the sleeve 3, the connecting end of the heat exchange tube 1 contacts the inclined surface of the fixing block 4, continue to insert the heat exchange tube 1, and the fixing block 4 slides along the telescopic groove 6 under the push of the heat exchange tube 1 until the fixing block 4 is pushed into the telescopic groove 6; rotate the sleeve 3 and slowly push the heat exchange tube 1 in, when the telescopic groove 6 is opposite to the fixing groove 7, the fixing block 4 extends into the fixing groove 7 under the action of the spring 5, and connects the heat exchange tube 1 with the connecting tube 2; when the heat exchange tube 1 needs to be removed, continue to push the heat exchange tube 1, so as to push the fixing block 4 out of the fixing groove 7, rotate the sleeve 3 to make the fixing block 4 staggered with the fixing groove 7, and then pull out the heat exchange tube 1, thereby realizing the detachable setting between the heat exchange tube 1 and the connecting tube 2, and the operation is simple and efficient.

[0029] like Figure 4 and 5As shown, the fixed groove 7 is arranged in an arc shape along the outer circumference of the heat exchange tube 1, and the heat exchange tube 1 is provided with a through groove 8 matched with the fixed block 4, one end of the through groove 8 is connected with the fixed groove 7, and the other end of the through groove 8 is connected with the end face of the connection end of the heat exchange tube 1. In order to make the operation easier, a limiting ring 12 is fixedly arranged on the inner side of the sleeve 3, and the limiting ring 12 is matched with the end face of the connection end of the heat exchange tube 1. When the end face of the connection end of the heat exchange tube 1 contacts the limiting ring 12, the fixed groove 7 and the telescopic groove 6 are just opposite, that is, the fixed groove 7 and the telescopic groove 6 can be opposite by simply rotating the sleeve 3; and because the fixed groove 7 is an arc, generally when the end face of the connection end of the heat exchange tube 1 contacts the limiting ring 12, the fixed groove 7 and the telescopic groove 6 are in a relative state, and the fixed block 4 connects the heat exchange tube 1 with the connecting tube 2 under the action of the spring 5. When the heat exchange tube 1 needs to be removed, it is only necessary to rotate the limiting ring 12 and pull the heat exchange tube 1 . When the fixing block 4 moves to the position of the through groove 8 , the fixing block 4 withdraws from the through groove 8 .

[0030] In order to avoid the need to connect the heat exchange tube 1 with the connecting tube 2, the fixing block 4 is located in the through groove 8, a first indicator line 10 is provided on the side of the through groove 8 away from the connecting end of the heat exchange tube 1, and a second indicator line is provided on the outer side of the sleeve 3 at the corresponding position of the fixing block 4. When the first indicator line 10 is opposite to the second indicator line, the fixing block 4 is opposite to the through groove 8.

[0031] Of course, the bottom of the telescopic slot 6 can also be provided with an electromagnet 11, and the fixing block 4 is made of an armature. When the heat exchange tube 1 needs to be connected to the connecting tube 2, the electromagnet 11 is controlled to be not energized, and the fixing block 4 extends into the fixing slot 7; when the heat exchange tube 1 needs to be removed, the electromagnet 11 is controlled to be energized to generate magnetism, and the fixing block 4 enters the telescopic slot 6 to extract the heat exchange tube 1. The electromagnet 11 can have a built-in battery, and the electromagnet 11 can be energized or not by manually operating the controller.

[0032] A first sealing ring 13 is provided between the heat exchange tube 1 and the sleeve 3 , and a second sealing ring 14 is provided between the connecting tube 2 and the sleeve 3 .

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable heat exchange coil connection device, characterized in that , comprising a heat exchange tube (1), a connecting tube (2) and a connecting portion; The connecting portion comprises a sleeve (3), a fixing block (4) and a spring (5); one side of the sleeve (3) is rotatably connected to the connecting pipe (2); a telescopic groove (6) is provided inside the other side of the sleeve (3); the fixing block (4) is slidably arranged in the telescopic groove (6); one end of the fixing block (4) is connected to the bottom of the telescopic groove (6) via the spring (5); and the outer side of the other end of the fixing block (4) is arranged obliquely inwards; A fixing groove (7) is provided on the outer side of the connection end of the heat exchange tube (1), and the fixing groove (7) cooperates with the fixing block (4).

2. A detachable heat exchange coil connection device according to claim 1, characterized in that: The fixing groove (7) is arranged in an arc shape along the outer circumference of the heat exchange tube (1); the heat exchange tube (1) is provided with a through groove (8) that matches the fixing block (4); one end of the through groove (8) is communicated with the fixing groove (7), and the other end of the through groove (8) is communicated with the end surface of the connecting end of the heat exchange tube (1).

3. A detachable heat exchange coil connection device according to claim 2, characterized in that: A first indicator line (10) is provided on a side of the through groove (8) away from the connection end of the heat exchange tube (1), and a second indicator line is provided on the outer side of the sleeve (3) at a position corresponding to the fixing block (4).

4. A detachable heat exchange coil connection device according to claim 1, characterized in that: An electromagnet (11) is provided at the bottom of the telescopic slot (6), and the fixed block (4) is made of an armature.

5. A detachable heat exchange coil connection device according to any one of claims 2 to 4, characterized in that: A limiting ring (12) is fixedly arranged on the inner side of the sleeve (3), and the limiting ring (12) cooperates with the end surface of the connecting end of the heat exchange tube (1).

6. A detachable heat exchange coil connection device according to any one of claims 1 to 4, characterized in that: The sleeve (3) is provided with a plurality of expansion and contraction grooves (6) symmetrically arranged in the circumferential direction.

7. A detachable heat exchange coil connection device according to any one of claims 1 to 4, characterized in that: A first sealing ring (13) is provided between the heat exchange tube (1) and the sleeve (3), and a second sealing ring (14) is provided between the connecting tube (2) and the sleeve (3).

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