CN210321382U

CN210321382U - Leak detection tool for heat exchanger

Info

Publication number: CN210321382U
Application number: CN201920131592.9U
Authority: CN
Inventors: 杨炜熔
Original assignee: Jiangsu Tongsheng Heat Exchanger Co ltd
Current assignee: Jiangsu Tongsheng Heat Exchanger Co ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-04-14
Anticipated expiration: 2029-01-25

Abstract

The utility model discloses a leak hunting frock of heat exchanger, including leak hunting frock body, be equipped with the upper plate on the leak hunting frock body, one side welding of upper plate has the needle valve, and needle valve installation needle valve cap opposite side edge is equipped with the sealing washer, and the required sealed face of nest of tubes is hugged closely to the sealing washer, be equipped with the hex bolts on the hypoplastron, the screw hole that the hex bolts passed the hypoplastron is connected with the upper plate of band, hypoplastron and the laminating fastening of nest of tubes. The utility model has the advantages of novel structural design, good fixing effect, convenient operation, simple process, high product yield and good protection of the pipe orifice; the adopted sealing ring has good sealing effect, and the easy-bending groove is arranged, so that the sealing ring is stable in deformation, and the service life of the sealing ring is prolonged; the adopted hexagonal screw is convenient to mount and dismount, and has good wear resistance and impact resistance and long service life.

Description

Leak detection tool for heat exchanger

Technical Field

The utility model relates to a fixed positioning frock technical field specifically is a leak hunting frock of heat exchanger.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. The heat exchanger is an energy-saving device for transferring heat between materials between two or more fluids with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature to make the temperature of the fluid reach the index specified by the process so as to meet the requirements of process conditions, and is also one of main devices for improving the utilization rate of energy. The heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like, and an industrial chain is formed mutually. Data show that the market scale of the heat exchanger industry in China in 2010 is about 500 million yuan, and the heat exchanger industry is mainly focused on the fields of petroleum, chemical engineering, metallurgy, electric power, ships, central heating, refrigeration and air conditioning, machinery, food, pharmacy and the like. Wherein, the petrochemical industry field is still the largest market of the heat exchanger industry, and the market scale is 150 billion yuan; the market scale of the heat exchanger in the field of electric metallurgy is about 80 hundred million yuan; the market scale of the industrial heat exchanger of the ship is more than 40 million yuan; the market scale of the mechanical industrial heat exchanger is about 40 million yuan; the market scale of the heat exchanger in the central heating industry exceeds 30 million yuan, and the food industry also has a market of nearly 30 million yuan. In addition, a large number of professional heat exchangers are needed in the fields of aerospace crafts, semiconductor devices, nuclear power conventional island nuclear islands, wind generating sets, solar photovoltaic power generation, polycrystalline silicon production and the like, and the markets have the scale of about 130 million yuan. The domestic heat exchanger industry obtains remarkable results in the aspects of saving energy, improving the efficiency of heat transfer, reducing the heat transfer area, reducing the pressure drop, improving the heat intensity of the device and the like.

The pipe diameter of the copper pipe group interface on the heat exchanger is special, the exposed size is short, a common method is to weld plugging loops such as a sealing cover, then leak detection is carried out, the sealing cover which is additionally arranged is removed by welding after the leakage detection is completed, the pipe orifice is easily burnt, welding liquid is remained, the surface is difficult to clean, the operation difficulty is high, the time and the labor are consumed by batch products, and the secondary welding is easily scrapped.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leak hunting frock of heat exchanger to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a leak hunting frock of heat exchanger, includes leak hunting frock body, be equipped with the upper plate on the leak hunting frock body, the welding of one side of upper plate has the needle valve, needle valve installation needle valve cap opposite side edge is equipped with the sealing washer, the required sealed face of nest of tubes is hugged closely to the sealing washer, still includes the hypoplastron, be equipped with the hex bolts on the hypoplastron, the screw hole that the hex bolts passed the hypoplastron is connected with the upper plate, hypoplastron and the laminating fastening of nest of tubes.

Preferably, the sealing ring comprises a bottom plate and a hollow pipe, wherein one end of the hollow pipe, which is far away from the bottom plate, is integrally connected with a top plate, the outer ring of the top plate is integrally connected with an annular blocking piece, the annular blocking piece is obliquely arranged on the top plate, and one end of the annular blocking piece, which is far away from the top plate, faces one side of the hollow pipe; the annular separation blade is provided with an easy-bending groove along the circumferential direction.

Preferably, the upper plate is provided with a step surface in the sealing direction of the pipe group, and the step surface is provided with a sealing ring.

Preferably, the lower plate is provided with a threaded hole, and the threaded hole is arranged in the center of the lower plate.

Preferably, the hexagon screw is including screw head and screw body, screw head top is provided with the hexagon blind hole, screw head bottom surface is provided with the wearing layer, screw body surface is provided with the external screw thread, be provided with the recess on the screw body, the internal portion of screw is provided with the strengthening rib, the wearing layer sets up with screw head formula as an organic whole.

Preferably, the upper plate and the lower plate are both made of stainless steel plates, and the thickness of the upper plate and the thickness of the lower plate are both 4mm-6 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses structural design is new, and is fixed effectual, convenient operation, and the process is simple, and the yield of product is high, and the mouth of pipe protection is good.

(2) The utility model discloses a sealing washer sealed effectual, set up easy curved groove for the sealing washer warp stably, has prolonged its life.

(3) The utility model discloses in, be equipped with the screw hole on the hypoplastron, and the setting of screw hole puts at hypoplastron central point, does not interfere heat exchanger copper pipe nest of tubes, has improved the operation convenience.

(4) The utility model discloses a hexagon screw easy to assemble and dismantlement, still have good wear-resisting and shock resistance, long service life.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a schematic structural view of the sealing ring of the present invention;

fig. 4 is a schematic structural view of the hex screw of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a leak detection tool of a heat exchanger comprises a leak detection tool body 1, wherein an upper plate 2 is arranged on the leak detection tool body 1, a needle valve 3 is welded on one side of the upper plate 2, a sealing ring 5 is arranged at the edge of the other side, where a needle valve cap 4 is installed, of the needle valve 3, the sealing ring 5 is tightly attached to a required sealing surface of a pipe group 6, a step surface is arranged on the upper plate 2 in the sealing direction of the pipe group 6, the sealing ring is installed on the step surface, and the position of the step surface is designed according; the heat exchanger copper pipe group is characterized by further comprising a lower plate 7, wherein a hexagon screw 8 is arranged on the lower plate 7, the hexagon screw 8 penetrates through a threaded hole of the lower plate 7 to be connected with the upper plate 2, the lower plate 7 is tightly attached to the pipe group 6, a threaded hole is formed in the lower plate 7, the threaded hole is formed in the center of the lower plate 7, the heat exchanger copper pipe group is not interfered, and operation convenience is improved; the upper plate 2 and the lower plate 7 are both made of stainless steel plates, and the thicknesses of the upper plate 2 and the lower plate 7 are both 4-6 mm.

In the utility model, the sealing ring 5 comprises a bottom sheet 19 and a hollow tube 9, one end of the hollow tube 9 far away from the bottom sheet 19 is integrally connected with a top sheet 10, the outer ring of the top sheet 10 is integrally connected with an annular blocking sheet 11, the annular blocking sheet 11 is obliquely arranged on the top sheet 10, and one end of the annular blocking sheet 11 far away from the top sheet faces one side of the hollow tube 9; the annular baffle plate 11 is provided with an easily-bent groove 12 along the circumferential direction. The utility model discloses a sealing washer sealed effectual, set up easy curved groove for the sealing washer warp stably, has prolonged its life.

The utility model discloses in, hex screws 8 are including screw head 20 and screw body 13, screw head 20 top is provided with hexagon blind hole 14, screw head 20 bottom surface is provided with wearing layer 15, screw body 13 surface is provided with external screw thread 16, be provided with recess 17 on the screw body 13, the inside strengthening rib 18 that is provided with of screw body 13, wearing layer 15 sets up with screw head 20 formula as an organic whole. The utility model discloses a hexagon screw easy to assemble and dismantlement, still have good wear-resisting and shock resistance, long service life.

To sum up, the utility model discloses structural design is new, and is fixed effectual, convenient operation, and the process is simple, and the yield of product is high, and the mouth of pipe protection is good.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a leak hunting frock of heat exchanger, includes leak hunting frock body (1), its characterized in that: be equipped with upper plate (2) on leak hunting frock body (1), one side welding of upper plate (2) has needle valve (3), needle valve (3) installation needle valve cap (4) opposite side reason is equipped with sealing washer (5), the required sealed face of nest of tubes (6) is hugged closely in sealing washer (5), still includes hypoplastron (7), be equipped with hex bolts (8) on hypoplastron (7), the screw hole that hypoplastron (7) were passed in hex bolts (8) is connected with upper plate (2), hypoplastron (7) and nest of tubes (6) laminating fastening.

2. The leak detection tool for the heat exchanger according to claim 1, characterized in that: the sealing ring (5) comprises a bottom plate (19) and a hollow pipe (9), one end, far away from the bottom plate (19), of the hollow pipe (9) is integrally connected with a top plate (10), the outer ring of the top plate (10) is integrally connected with an annular blocking piece (11), the annular blocking piece (11) is obliquely arranged on the top plate (10), and one end, far away from the top plate, of the annular blocking piece (11) faces one side of the hollow pipe (9); an easily-bent groove (12) is formed in the circumferential direction of the annular blocking piece (11).

3. The leak detection tool for the heat exchanger according to claim 1, characterized in that: the upper plate (2) is provided with a step surface in the sealing direction of the pipe group (6), and the step surface is provided with a sealing ring.

4. The leak detection tool for the heat exchanger according to claim 1, characterized in that: the lower plate (7) is provided with a threaded hole, and the threaded hole is arranged in the center of the lower plate (7).

5. The leak detection tool for the heat exchanger according to claim 1, characterized in that: hexagonal screw (8) are including screw head (20) and screw body (13), screw head (20) top is provided with hexagon blind hole (14), screw head (20) bottom surface is provided with wearing layer (15), screw body (13) surface is provided with external screw thread (16), be provided with recess (17) on screw body (13), screw body (13) inside is provided with strengthening rib (18), wearing layer (15) and screw head (20) formula setting as an organic whole.

6. The leak detection tool for the heat exchanger according to claim 1, characterized in that: the upper plate (2) and the lower plate (7) are both made of stainless steel plates, and the thicknesses of the upper plate (2) and the lower plate (7) are both 4-6 mm.