CN204902257U - A connection device for the inlet and outlet nozzles of a coil heat exchanger - Google Patents

Abstract

The utility model discloses a connection device for the inlet and outlet of a coil-type heat exchanger, comprising a mounting hole arranged on a barrel body, a water pipe guide sleeve passing through the mounting hole, a water pipe passing through the water pipe guide sleeve, two ends of the water pipe contacting the water pipe guide sleeve respectively provided with a first sealing device and a second sealing device, two ends of the water pipe guide sleeve contacting the barrel body respectively provided with a third sealing device and a fourth sealing device, and the water pipe guide sleeve is made of stainless steel. The utility model adopting the above structure realizes the sealing of the connection between the water pipe and the barrel body by setting a multi-layer sealing device, so as to reduce the probability of water leakage and corrosion at the connection, and the utility model has a simple structure and a significant effect.

Description

A connection device for the inlet and outlet nozzles of a coil heat exchanger

technical field

The utility model relates to a connection device for inlet and outlet nozzles of a coil heat exchanger.

Background technique

Due to the improvement of people's living standards, the water heater industry has entered a stage of rapid development. With the rapid development of the industry, many shortcomings and technical problems have also been exposed. is a very common problem. Through cause analysis and detection, it is found that the connection between the water tank and the water pipe is the high-frequency occurrence of water leakage, the existing connection structure is not perfect, and there is room for further improvement. Therefore, the utility model provides a coil heat exchanger inlet and outlet A connecting device aims to solve the above-mentioned problems.

Utility model content

In order to solve the above problems, the utility model provides a connection device for inlet and outlet nozzles of a coil heat exchanger.

The technical scheme that the utility model solves its technical problem adopts is:

A connection device for the inlet and outlet nozzles of a coil-type heat exchanger, including an installation hole arranged on the barrel body, a water pipe guide sleeve is pierced in the installation hole, a water pipe is pierced in the water pipe guide sleeve, and the water pipe and the water pipe The two ends in contact with the guide sleeve are respectively provided with a first sealing device and the second sealing device, and the two ends of the water pipe guide sleeve in contact with the bucket body are respectively provided with a third sealing device and a fourth sealing device.

The first sealing device is located inside the bucket body, which includes a gasket, a first sealing ring and a locking screw. The connection between the water pipe guide sleeve and the locking screw is provided with a thread, and the end is provided with an inner chamfer. One end of the locking screw is provided with a first sealing retaining ring, the inner diameter of the first sealing retaining ring matches the outer diameter of the water pipe, the first sealing ring is arranged in the inner chamfer, and the gasket is located in the first Between the sealing ring and the first sealing retaining ring.

The second sealing device is located outside the bucket body, which includes a copper gasket and a compression screw. The end of the water pipe on the outside of the bucket body is folded outward to form a ring-shaped hem. The guide sleeve of the water pipe is placed outside the bucket body An annular groove is provided on the inner side wall of the end, the annular groove is provided with an internal thread, the flange is located in the annular groove, the copper gasket is located between the flange and the end of the annular groove, the pressing Tightening screws are used to hold down the hem.

Both the third sealing device and the fourth sealing device include a sealing gland and a second sealing ring, the outer wall of the water pipe conduit is provided with a second retaining ring, and the sealing glands are in the shape of an annular angle steel and are respectively located on the body of the barrel. Inside and outside the bucket body, the second sealing ring is located in the sealing gland, the sealing gland inside the bucket body is pressed against the inner wall of the bucket body by locking screws, and the sealing gland outside the bucket body passes through the second The retaining ring is pressed against the outer wall of the barrel body.

The water pipe guide sleeve is made of stainless steel.

The beneficial effects of the utility model are: the utility model adopting the above-mentioned structure realizes the sealing of the joint between the water pipe and the bucket body by setting a multi-layer sealing device, so as to reduce the probability of water leakage at the joint. The utility model has a simple structure and remarkable effect .

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

Referring to Fig. 1, the utility model is a connection structure of inlet and outlet nozzles of a coil heat exchanger, which includes a mounting hole arranged on the barrel body 1, a water pipe guide sleeve 3 is pierced in the installation hole, and a water pipe guide sleeve 3 is pierced inside. There is a water pipe 2, and the two ends of the water pipe 2 in contact with the water pipe guide sleeve 3 are respectively provided with a first sealing device and a second sealing device, and the two ends of the water pipe guide sleeve 3 in contact with the barrel body 1 are respectively provided with a third sealing device. device and the fourth sealing device, the water pipe guide sleeve 3 is made of stainless steel. The utility model adopting the above-mentioned structure realizes the sealing of the joint between the water pipe 2 and the bucket body 1 by setting a multi-layer sealing device, so as to reduce the probability of water leakage at the joint. The utility model has a simple structure and remarkable effect.

As shown in the figure, the first sealing device is located inside the bucket body 1, which includes a gasket 41, a first sealing ring 42, and a locking screw 43. The connection between the water pipe guide sleeve 3 and the locking screw 43 is provided with threads, and the end An inner chamfer 44 is provided on the upper part, and a first sealing retaining ring 45 is provided at one end of the locking screw 43. The inner diameter of the first sealing retaining ring 45 matches the outer diameter of the water pipe 2, and the first sealing ring 42 is provided with an inner chamfer. 44 , the gasket 41 is located between the first sealing ring 42 and the first sealing stop ring 45 . The gasket 41 is squeezed through the first sealing stop ring 45 , and then the first sealing ring 42 is squeezed into the inner chamfer 44 through the gasket 41 to complete the sealing. The structure has an excellent sealing effect.

As shown in the figure, the second sealing device is located outside the bucket body 1, which includes a copper gasket 61 and a compression screw 62. The end of the water pipe 2 outside the bucket body is folded outward to form an annular flange 63, so that The water pipe guide sleeve 3 is provided with an annular groove on the inner side wall of the outer end of the bucket body 1, and the annular groove is provided with an internal thread, and the flange is located in the annular groove, and the copper gasket 61 is located between the flange 63 and Between the ends of the annular groove, the pressing screw 62 is used for pressing the flange 63 . The structure has an excellent sealing effect.

As shown in the figure, both the third sealing device and the fourth sealing device include a sealing gland 52 and a second sealing ring 53, a second retaining ring 54 is arranged on the outer wall of the conduit of the water pipe 2, and the sealing gland 52 is in the shape of an annular angle steel. The second sealing ring 53 is located in the sealing gland 52, and the sealing gland 52 inside the barrel 1 is pressed against the inner wall of the barrel 1 by the locking screw 43. The sealing gland 52 outside the barrel body 1 is pressed against the outer side wall of the barrel body 1 through the second stop ring 54 . It can be seen from the above that the first sealing device, the second sealing device, the third sealing device and the fourth sealing device are closely connected, forming a solid seal at the joint as a whole, and the sealing effect is good.

The above-mentioned embodiments are only preferred solutions of the utility model, and the utility model also has other implementation solutions. Those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present utility model, and these equivalent modifications or replacements are all included in the scope set by the claims of the present application.

Claims (5)

1. a coil exchanger turnover mouth jockey, it is characterized in that comprising the installing hole be arranged on ladle body, water pipe guide pin bushing is equipped with in described installing hole, water pipe is equipped with in described water pipe guide pin bushing, two ends that described water pipe contacts with water pipe guide pin bushing are respectively arranged with the first sealing device and the second sealing device, and two ends that described water pipe guide pin bushing contacts with ladle body are respectively arranged with the 3rd sealing device and the 4th sealing device.

2. a kind of coil exchanger turnover mouth jockey as claimed in claim 1, it is characterized in that described first sealing device is positioned at ladle body inside, it comprises pad, the first sealing ring and lock screw, described water pipe guide pin bushing and lock screw junction are provided with screw thread, and this end is provided with interior chamfering, one end of described lock screw is provided with the first seal stopper ring, internal diameter and the water pipe external diameter of this first seal stopper ring match, described first sealing ring is arranged in interior chamfering, and described pad is between the first sealing ring and the first seal stopper ring.

3. a kind of coil exchanger turnover mouth jockey as claimed in claim 1, it is characterized in that described second sealing device is positioned at ladle body outside, it comprises red copper pad and housing pin, described water pipe outwards turns down formation one circular fold in the end of ladle body outside, described water pipe guide pin bushing is provided with an annular groove on the tip inside wall of ladle body outside, this annular groove is provided with internal thread, flanging is positioned at annular groove, described red copper pad is between flanging and the end of annular groove, and described housing pin is used for compacting and folding.

4. a kind of coil exchanger turnover mouth jockey as claimed in claim 2, it is characterized in that described 3rd sealing device and the 4th sealing device all comprise sealing gland and the second sealing ring, described water pipe conduit lateral wall is provided with the second baffle ring, described sealing gland is angle steel shape ringwise, lay respectively at ladle body inside and ladle body outside, described second sealing ring is positioned at sealing gland, the sealing gland being positioned at ladle body inside is compressed by lock screw and ladle body madial wall, and the sealing gland being positioned at ladle body outside is compressed by the second baffle ring and ladle body lateral wall.

5. a kind of coil exchanger turnover mouth jockey as claimed in claim 1, is characterized in that described water pipe guide pin bushing adopts stainless steel.