CN212621963U

CN212621963U - Self-sealing type hydrostatic test device for heat exchange tube of heat exchanger

Info

Publication number: CN212621963U
Application number: CN202021619262.3U
Authority: CN
Inventors: 吴秋艳; 丁粉娥; 陈兴; 王光成
Original assignee: Yunnan Dawei Chemical Equipment Manufacturing Co ltd
Current assignee: Yunnan Dawei Chemical Equipment Manufacturing Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-02-26
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a self-sealing hydrostatic test device of a heat exchange tube of a heat exchanger, which comprises a bracket and the heat exchange tube, wherein the bracket is provided with a fixed component and a sliding component, the fixed component comprises a stop block and a blocking rod, one side surface of the stop block is provided with a circular groove, the bottom of the circular groove is provided with a through hole which runs through the stop block, one end of the blocking rod is provided with an end cap, the other end of the blocking rod is provided with a screw thread, the screw thread end of the blocking rod is connected with an elastic nut after passing through the circular groove and the through hole in sequence, the blocking rod between the end cap and the bottom of the circular groove is provided with a plurality of rubber sealing rings and a stop sleeve in sequence, and the sliding component and the fixing component are symmetrically arranged on the bracket, a water inlet hole penetrating through the blocking rod is concentrically processed in the blocking rod of the sliding component, and a screw rod is arranged on a connecting plate of the sliding component. The utility model discloses convenient operation is swift, and the pressure testing is efficient, and application scope is wide, has apparent economic value and social value.

Description

Self-sealing type hydrostatic test device for heat exchange tube of heat exchanger

Technical Field

The utility model relates to a chemical industry equipment technical field, concretely relates to formula hydrostatic test device proclaims oneself of heat exchanger heat exchange tube.

Background

The shell-and-tube reactor is one of heat exchangers, also called tube-type heat exchanger, and is a dividing wall type heat exchanger which uses the wall surface of a tube bundle sealed in a shell as a heat transfer surface, can be used under high temperature and high pressure, is heat exchange equipment with the widest application, and the heat exchange tube is one of important components in the heat exchanger. Because a heat exchange tube manufacturer only performs batch sampling inspection on heat exchange tubes according to the conventional standard requirements when products are subjected to factory inspection, some heat exchange tubes with defects of cracks, air holes and the like can be inevitably subjected to omission inspection, the heat exchange tubes with the defects are assembled into a heat exchanger by the heat exchanger manufacturer, the quality problems of liquid leakage and the like caused by the defects of the heat exchange tubes can occur, the heat exchange tubes are arranged in a closed shell, tube bundles are generally arranged densely, once the heat exchange tubes leak, the heat exchange tubes cannot be repaired and can only be plugged, and the plugging of the heat exchange tubes can cause the problems of heat exchange area reduction, heat exchange efficiency reduction and even scrapping of the heat exchanger.

When the hydraulic test is carried out to the heat exchange pipe to traditional mode, it is tight or weld with the dog with the pipe both ends top most, wherein the tight formula in top only is applicable to the lower condition of pressure, leak very easily when experimental pressure is higher, and the both ends welded formula is applicable to the condition of higher pressure, nevertheless must still cut the dog after experimental completion, and handle the pipe end of heat exchange pipe, the former has the problem that application scope is little, the latter has the pressure testing process loaded down with trivial details, the pressure testing is inefficient, the problem that takes a lot of work and time, especially when meetting large-scale heat exchanger's manufacturing, when needing to carry out the pressure testing to hundreds of thousands of heat exchange pipes, it is consuming time longer, can prolong the manufacturing period of equipment because of the pressure testing of heat exchange pipe even. Therefore, the development of the self-sealing type hydrostatic test device for the heat exchange tube of the heat exchanger, which is convenient and rapid to operate, high in pressure test efficiency and wide in application range, is objectively needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a convenient operation is swift, and the pressure testing is efficient, the formula hydrostatic test device of proclaiming oneself of the wide heat exchanger heat exchange tube of application scope.

The utility model aims at realizing the purpose, which comprises a bracket and a heat exchange tube, wherein the bracket is provided with a fixed component and a sliding component, the fixed component comprises a stop block and a blocking rod, one side surface of the stop block is provided with a circular groove, the diameter of the circular groove is matched with the outer diameter of the heat exchange tube, the bottom of the circular groove is provided with a through hole which runs through the stop block, one end of the blocking rod is provided with an end cap, the other end of the blocking rod is provided with a screw thread, the screw thread end of the blocking rod sequentially passes through the circular groove and the through hole and then is screwed with a loose nut, the blocking rod between the end cap and the bottom of the circular groove is sequentially provided with a plurality of rubber sealing rings and a blocking sleeve, the outer diameters of the end cap and the blocking sleeve are matched with the inner diameter of the heat exchange tube, the outer sides of the rubber sealing rings, the lower end of the baffle is fixedly connected with the end part of the bracket.

The structure size of slip subassembly is the same with the structure size of fixed subassembly, and slip subassembly and fixed subassembly mutual symmetrical arrangement on the support, concentric processing has the inlet opening that runs through stifled pole in the stifled pole of slip subassembly, be provided with the slide on the support, the dog lower extreme of slip subassembly is provided with the first slider with slide sliding connection, be provided with the connecting plate between two baffles of slip subassembly, be provided with the screw rod on the connecting plate, the length direction of screw rod is on a parallel with the length direction of heat exchange tube, the tip of support is provided with the supporting shoe, processing has the round hole on the supporting shoe, the dress is worn in the round hole to the screw rod, the spiro union has a fastening nut on the screw rod of.

Furthermore, the cross section of the slideway is in a dovetail shape.

Furthermore, the end part of the blocking rod of the sliding assembly is connected with a water inlet connector.

Furthermore, a plurality of supporting frames are arranged on the support between the sliding assembly and the fixing assembly at intervals, each supporting frame comprises a supporting block and a pressing plate located above the corresponding supporting block, the supporting blocks are movably connected with the pressing plates through bolts, U-shaped holes matched with the heat exchange tubes are formed in the upper end faces of the supporting blocks, and the lower ends of the supporting blocks are connected with the slide ways in a sliding mode through second sliding blocks.

Furthermore, a rubber pressing block is arranged on the lower surface of the pressing plate above the U-shaped hole.

When the utility model is used, firstly two fastening nuts on the screw rod are loosened and the screw rod is pulled, the screw rod drives the sliding component to slide, so that the distance between the sliding component and the fixed component is suitable for placing a heat exchange tube, after the distance adjustment is finished, one end of the heat exchange tube is inserted into the circular groove of the stop block of the fixed component, and the end cap, the rubber sealing ring and the baffle sleeve are inserted into the heat exchange tube, the elastic nut is adjusted, so that the end cap and the baffle sleeve compress the rubber sealing ring, the rubber sealing ring is compressed and deformed to tightly abut against the inner wall of the heat exchange tube, the sealing purpose is achieved, then the other end of the heat exchange tube is assembled on the sliding component according to the same steps, the position of the sliding component is fixed by rotating the fastening nut, then, a water pump is used for leading water pressure test of the heat exchange tube from the, the installation can be carried out according to the steps, the whole operation process is convenient and quick, and the pressure test efficiency is higher; secondly, when having water pressure in the heat exchange tube, water pressure can outwards promote the end cap for rubber seal is pressed tighter, thereby has better sealing performance, and water pressure is big more, and sealing performance is good better, has the effect of proclaiming oneself, applicable in the heat exchange tube hydrostatic test of various pressure, various length. The utility model discloses convenient operation is swift, and the pressure testing is efficient, and application scope is wide, has apparent economic value and social value.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of the support frame of the present invention;

in the figure: 1-support, 2-heat exchange tube, 3-fixing component, 4-sliding component, 5-stop block, 6-blocking rod, 7-blocking head, 8-loose nut, 9-rubber sealing ring, 10-blocking sleeve, 11-baffle, 12-water inlet hole, 13-slideway, 14-first slide block, 15-connecting plate, 16-screw rod, 17-supporting block, 18-fastening nut, 19-water inlet joint, 20-supporting block, 21-pressing plate, 22-U-shaped hole, 23-second slide block and 24-rubber pressing block.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.

As shown in figures 1-3, the utility model comprises a support 1 and a heat exchange tube 2, a fixed component 3 and a sliding component 4 are arranged on the support 1, the fixed component 3 comprises a stop block 5 and a blocking rod 6, a circular groove is processed on one side surface of the stop block 5, the diameter of the circular groove is matched with the outer diameter of the heat exchange tube 2, a through hole penetrating through the stop block 5 is processed at the bottom of the circular groove, a plug 7 is arranged at one end of the blocking rod 6, a thread is processed at the other end, the thread end of the blocking rod 6 is in turn threaded with a turnbuckle 8 after passing through the circular groove and the through hole, a plurality of rubber sealing rings 9 and a blocking sleeve 10 are sequentially arranged on the blocking rod 6 between the plug 7 and the bottom of the circular groove, the outer diameters of the plug 7 and the blocking sleeve 10 are matched with the inner diameter of the heat exchange tube 2, the outer sides of the rubber sealing rings 9 are abutted against, two baffles 11 are symmetrically arranged at two sides of the blocking rod 6, and the lower ends of the baffles 11 are fixedly connected with the end part of the bracket 1.

The structure size of the sliding component 4 is the same as that of the fixed component 3, the sliding component 4 and the fixed component 3 are symmetrically arranged on the support 1, a water inlet hole 12 penetrating through the blocking rod 6 is concentrically processed in the blocking rod 6 of the sliding component 4, a slide 13 is arranged on the support 1, a first slide block 14 connected with the slide 13 in a sliding mode is arranged at the lower end of a stop block 5 of the sliding component 4, a connecting plate 15 is arranged between two baffle plates 11 of the sliding component 4, a screw rod 16 is arranged on the connecting plate 15, the length direction of the screw rod 16 is parallel to the length direction of the heat exchange tube 2, a supporting block 17 is arranged at the end of the support 1, a round hole is processed in the supporting block 17, the screw rod 16 penetrates through the round hole, and fastening nuts 18 are respectively screwed on the screw rods.

When the utility model is used, firstly two fastening nuts 18 on the screw rod 16 are loosened and the screw rod 16 is pulled, the screw rod 16 drives the sliding component 4 to slide, so that the distance between the sliding component 4 and the fixed component 3 is suitable for placing the heat exchange tube 2, after the distance adjustment is finished, one end of the heat exchange tube 2 is inserted into the circular groove of the stop 5 of the fixed component 3, and the plug 7, the rubber sealing ring 9 and the retaining sleeve 10 are inserted into the heat exchange tube 2, the elastic nut 8 is adjusted, so that the plug 7 and the retaining sleeve 10 compress the rubber sealing ring 9, the rubber sealing ring 9 is compressed, deformed and pressed and tightly pressed on the inner wall of the heat exchange tube 2, the sealing purpose is achieved, then the other end of the heat exchange tube 2 is assembled on the sliding component 4 according to the same steps, the fastening nuts 18 are rotated to fix the position of the sliding component 4, at this time, a water pump is used for, after the hydrostatic test is finished, loosening the fastening nut 18, pulling the sliding assembly 4, replacing the next heat exchange tube 2, and installing according to the steps, wherein the whole operation process is convenient and quick, and the pressure test efficiency is high; secondly, when having water pressure in heat exchange tube 2, water pressure can outwards promote end cap 7 for rubber seal 9 is pressed tighter, thereby has better sealing performance, and water pressure is big more, and sealing performance is better, has the effect of proclaiming oneself, applicable in the heat exchange tube 2 hydrostatic test of various pressure, various length.

Preferably, the cross-sectional shape of the slideway 13 is dovetail, which both allows the sliding assembly 4 to slide on the slideway 13 and prevents the sliding assembly 4 from falling off the slideway 13.

The end part of the blocking rod 6 of the sliding component 4 is connected with a water inlet joint 19, the size of the water inlet joint 19 can be determined according to a water inlet pipe on a test site, and the water inlet joint 19 with various specifications can be manufactured during actual use, so that the installation and the use are convenient.

A plurality of supporting frames are arranged on the support 1 between the sliding component 4 and the fixing component 3 at intervals, each supporting frame comprises a supporting block 20 and a pressing plate 21 located above the supporting block 20, the supporting blocks 20 are movably connected with the pressing plates 21 through bolts, U-shaped holes 22 matched with the heat exchange tubes 2 are formed in the upper end faces of the supporting blocks 20, and the lower ends of the supporting blocks 20 are connected with the slideways 13 in a sliding mode through second sliding blocks 23. During pressure testing, the heat exchange tube 2 is arranged in the U-shaped hole 22 in a penetrating mode, on one hand, the middle of the heat exchange tube 2 can be prevented from being bent downwards, and therefore sealing failure of two ends of the heat exchange tube 2 is caused, on the other hand, when the testing pressure is large, the heat exchange tube 2 can fly away from the device accidentally under the water pressure, certain potential safety hazards are caused, and the situation can be prevented through the support frame.

Be provided with rubber briquetting 24 on the clamp plate 21 lower surface in U-shaped hole 22 top, when screwing up clamp plate 21, rubber briquetting 24 pushes down simultaneously, and rubber briquetting 24's lower extreme supports on heat exchange tube 2, can fix heat exchange tube 2, prevents that heat exchange tube 2 from producing the drunkenness at the pressure testing in-process.

Claims

1. The utility model provides a proclaim oneself formula hydrostatic test device of heat exchanger heat exchange tube, includes support (1) and heat exchange tube (2), its characterized in that: the heat exchange tube is characterized in that a fixed component (3) and a sliding component (4) are arranged on the support (1), the fixed component (3) comprises a stop block (5) and a blocking rod (6), a circular groove is processed on one side surface of the stop block (5), the diameter of the circular groove is matched with the outer diameter of the heat exchange tube (2), a through hole penetrating through the stop block (5) is processed at the bottom of the circular groove, a plug (7) is arranged at one end of the blocking rod (6), a thread is processed at the other end of the blocking rod, the threaded end of the blocking rod (6) sequentially penetrates through the circular groove and the through hole and then is screwed with an elastic nut (8), a plurality of rubber sealing rings (9) and a blocking sleeve (10) are sequentially arranged on the blocking rod (6) between the plug (7) and the bottom of the circular groove, the outer diameters of the plug (7) and the blocking sleeve (10) are matched with the inner diameter of the heat exchange tube (2), and the outer, two baffle plates (11) are arranged on the side face of the stop block (5) opposite to the circular groove, the two baffle plates (11) are symmetrically arranged on two sides of the blocking rod (6), and the lower ends of the baffle plates (11) are fixedly connected with the end part of the support (1);

the structure size of the sliding component (4) is the same as that of the fixed component (3), the sliding component (4) and the fixed component (3) are symmetrically arranged on the support (1), a water inlet hole (12) penetrating through the blocking rod (6) is concentrically processed in the blocking rod (6) of the sliding component (4), a slide way (13) is arranged on the support (1), a first slide block (14) in sliding connection with the slide way (13) is arranged at the lower end of a stop block (5) of the sliding component (4), a connecting plate (15) is arranged between two baffle plates (11) of the sliding component (4), a screw rod (16) is arranged on the connecting plate (15), the length direction of the screw rod (16) is parallel to the length direction of the heat exchange tube (2), a supporting block (17) is arranged at the end part of the support (1), a round hole is processed on the supporting block (17), and the screw rod (16) is arranged in the round hole in a penetrating, the screw rods (16) at the two sides of the supporting block (17) are respectively screwed with a fastening nut (18).

2. The self-sealing hydrostatic test device for the heat exchange tube of the heat exchanger as recited in claim 1, wherein the cross-sectional shape of the slideway (13) is dovetail-shaped.

3. The self-sealing hydrostatic test device for the heat exchange tube of the heat exchanger as recited in claim 1, characterized in that the end of the blocking rod (6) of the sliding assembly (4) is connected with a water inlet joint (19).

4. The self-sealing hydrostatic test device of the heat exchange tube of the heat exchanger according to claim 1, characterized in that a plurality of support frames are arranged on the support (1) between the sliding assembly (4) and the fixing assembly (3) at intervals, the support frames comprise support blocks (20) and pressing plates (21) positioned above the support blocks (20), the support blocks (20) are movably connected with the pressing plates (21) through bolts, U-shaped holes (22) matched with the heat exchange tube (2) are processed on the upper end face of the support blocks (20), and the lower ends of the support blocks (20) are slidably connected with the slide ways (13) through second sliding blocks (23).

5. The self-sealing hydrostatic test device of the heat exchange tube of the heat exchanger as recited in claim 4, wherein a rubber pressing block (24) is arranged on the lower surface of the pressing plate (21) above the U-shaped hole (22).