CN218673265U - Single-tube-pass floating head heat exchanger - Google Patents

Abstract

The utility model relates to a single tube journey floating head heat exchanger, including pipe case, tube bank, barrel, support, floating head lid, outer skull, takeover and expansion joint. The beneficial effects are as follows: the utility model discloses a device, the floating head lid of being connected with the tube bank, expansion joint and tube side medium export through flange joint between two liang and lie in outer skull, and the side of outer skull is equipped with the installing port, can solve the inconvenient problem of installation and maintenance, and the length of expansion joint calculates according to the inflation volume of tube bank, can satisfy the heat exchanger of different inflation volume demands, is applicable to multiple medium occasions such as volatile, easily fire, easily explode, poisonous and precious medium.

Description

Single-tube-pass floating head heat exchanger

Technical Field

The utility model relates to a heat transfer technical field especially relates to a single tube journey floats first heat exchanger.

Background

The single-pass floating head heat exchanger is one of conventional shell-and-tube heat exchangers, and the adopted stuffing box structure is a common structural form of the single-pass floating head heat exchanger. Because the stuffing box structure is not suitable for the occasions of volatile, inflammable, explosive, toxic and precious media, a single-tube-pass floating-head heat exchanger adopting an expansion joint structure is also available. At present, the expansion joint of the existing expansion joint structure single-tube-pass floating head heat exchanger is generally installed and fixed through a flange or a clamping plate, and the defects of inconvenient installation and maintenance, small expansion amount, few types of applicable media and the like exist.

SUMMERY OF THE UTILITY MODEL

For overcoming the prior art defect, the utility model provides a technical problem provides a single tube side floats first heat exchanger, the floating head lid of being connected with the tube bank, expansion joint and tube side medium export are two liang between through flange joint and lie in the skull outward, and the side of skull is equipped with the installing port, can solve the inconvenient problem of erection maintenance, the length of expansion joint calculates according to the expansion of tube bank, can satisfy the heat exchanger of different expansion demands, be applicable to easily volatilize, easily fire, it is explosive, multiple medium occasions such as poisonous and valuable medium.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a single-pass floating head heat exchanger comprises a tube box, a tube bundle, a barrel, a support, a floating head cover, an outer head cover, a connecting tube and an expansion joint, and is characterized in that the outer head cover consists of a shell pass medium inlet, a sealing head, a tube pass medium outlet, a diffusing port, a mounting port, an outer head cover barrel and an outer head cover flange, wherein the outer head cover flange and the sealing head are respectively arranged at two ends of the outer head cover barrel;

one end of the expansion joint is connected with a tube side medium outlet extending into the end enclosure through a flange, the other end of the expansion joint is connected with a connecting pipe through a flange, and the connecting pipe is welded in the center of the floating head cover;

the tube bundle is arranged in the tube body, the tube box is connected with the tube body through a flange, the tube body is connected with the outer head cover through a flange arranged on the tube body, the floating head cover is connected with the tube plate of the tube bundle through a bolt, and the support is arranged on the upper side of the outer portion of the tube body.

The floating head cover is of a one-way structure.

And a shell pass medium outlet is formed in the cylinder body.

The side of the tube box is provided with a tube pass medium inlet, and the bottom of the tube box is provided with a vent.

The length of the expansion joint is calculated according to the expansion amount of the tube bundle.

The expansion joint is preferably made of stainless steel.

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

1) The utility model adopts an expansion joint structure, the length of the expansion joint is calculated according to the expansion amount of the tube bundle, and the heat exchanger with different expansion amount requirements can be satisfied;

2) In the utility model, the expansion joint is preferably made of stainless steel, and can be suitable for various media such as volatile, inflammable, explosive, toxic and valuable media;

3) According to the device, the arrangement of the mounting port can ensure that the expansion joint is mounted through the mounting port, and the mounting and the overhaul are convenient;

4) According to the utility model, the shell side medium inlet is arranged on the side surface of the outer cover, so that the heat exchange area of the heat exchanger can be fully utilized, and the heat exchange efficiency is high;

5) The structure is simple and compact, and the realization is easy.

Drawings

Fig. 1 is a schematic view of the structural principle of the present invention.

In the figure: 1-channel box 2-tube bundle 3-cylinder 4-support 5-floating head cover 6-outer head cover 7-connecting tube 8-expansion joint 9-shell side medium outlet 10-tube side medium inlet 11-vent 21-shell side medium inlet 22-seal head 23-tube side medium outlet 24-vent 25-mounting opening 26-outer head cover cylinder 27-outer head cover flange

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

the utility model relates to a single-pass floating head heat exchanger, as shown in figure 1, the utility model relates to a single-pass floating head heat exchanger, including pipe case 1, tube bank 2, barrel 3, support 4, floating head cover 5, outer head cover 6, takeover 7 and expansion joint 8, outer head cover 6 comprises shell side medium inlet 21, head 22, tube side medium outlet 23, diffusing port 24, installing port 25, outer head cover barrel 26 and outer head cover flange 27, wherein outer head cover flange 27 and head 22 set up respectively at the both ends of outer head cover barrel 26, shell side medium inlet 21 sets up in the left side of outer head cover barrel 26, installing port 25 sets up in the right side of outer head cover barrel 26, tube side medium outlet 23 sets up in the central point of head 22 and stretches into inside head 22, diffusing port 24 sets up on the head;

one end of the expansion joint 8 is connected with a tube side medium outlet 23 extending into the end enclosure 22 through a flange, the other end of the expansion joint is connected with the connecting tube 7 through a flange, and the connecting tube 7 is welded at the center of the floating head cover 5;

the tube box 1, the tube bundle 2, the cylinder 3 and the support 4 are designed according to a conventional standard, wherein the tube bundle 2 is arranged inside the cylinder 3, the tube box 1 is connected with the cylinder 3 through a flange, the cylinder 3 is connected with an outer head cover flange 27 through a flange arranged on the cylinder 3, the floating head cover 5 is connected with a tube plate of the tube bundle 2 through a bolt, and the support 4 is arranged at an upper position outside the cylinder 3.

The floating head cover 5 is of a one-way structure.

And a shell pass medium outlet 9 is arranged on the cylinder 3.

The side surface of the tube box 1 is provided with a tube pass medium inlet 10, and the bottom of the tube box 1 is provided with a vent 11.

The length of the expansion joint 8 is calculated according to the expansion amount of the tube bundle 2, and the heat exchangers with different expansion amount requirements can be met.

When in work:

1) The trend and heat exchange principle of various media are the same as those of a common heat exchanger;

2) The floating head cover 5, the expansion joint 8 and the tube pass medium outlet 23 which are connected with the tube bundle 2 are connected with each other through flanges, and the expansion joint 8 can absorb or buffer the thermal expansion and cold contraction deformation of the tube bundle 2;

3) The length of the expansion joint 8 is calculated according to the expansion amount of the tube bundle 2, so that the heat exchangers with different expansion amount requirements can be met;

4) The expansion joint 8 is preferably made of stainless steel and is suitable for various media such as volatile, inflammable, explosive, toxic and precious media;

5) The installation, the overhaul and the maintenance of the expansion joint 8 are all finished through the installation port 25, and the installation, the overhaul and the maintenance are convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (3)

1. A single-pass floating head heat exchanger comprises a tube box, a tube bundle, a barrel, a support, a floating head cover, an outer head cover, a connecting tube and an expansion joint, and is characterized in that the outer head cover consists of a shell pass medium inlet, a sealing head, a tube pass medium outlet, a diffusing port, a mounting port, an outer head cover barrel and an outer head cover flange, wherein the outer head cover flange and the sealing head are respectively arranged at two ends of the outer head cover barrel;

one end of the expansion joint is connected with a tube side medium outlet extending into the end enclosure through a flange, the other end of the expansion joint is connected with a connecting pipe through a flange, and the connecting pipe is welded in the center of the floating head cover;

the tube bundle is arranged in the tube body, the tube box is connected with the tube body through a flange, the tube body is connected with the outer head cover through a flange arranged on the tube body, the floating head cover is connected with the tube plate of the tube bundle through a bolt, and the support is arranged on the upper side of the outer portion of the tube body.

2. The single-pass floating head heat exchanger of claim 1, wherein the floating head cover is a single-pass structure.

3. A single-pass floating-head heat exchanger according to claim 1, wherein the length of the expansion joint is calculated from the amount of expansion of the tube bundle.

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