CN102200401B - Heat exchanger - Google Patents

Abstract

The invention relates to a water heating device, in particular to a heat exchanger in a heat pump device or a boiler device for supplying hot water to places needing a large amount of hot water, such as a swimming pool. The refrigerant coil pipe comprises a plastic shell and a refrigerant coil pipe, wherein the shell is divided into two sections, the two sections of shells have the same shape and structure, and each section of shell is cylindrical and comprises an annular side wall, an end face and a port; the ports of the two sections of shells are connected through a flange to form a shell; the end face is provided with a cross-shaped reinforcing rib, two circles of concentric annular reinforcing ribs and three cylindrical pipe body mounting positions. The invention has reasonable structural design, the two sections have the same structure, thereby reducing the number of moulds and the production cost of the shell, the two sections of shells are connected by the flange to improve the compressive resistance at the joint, the various reinforcing ribs are reasonably distributed, the heat exchange efficiency is improved by the turbulence of the vortex plate, and the sealing performance of the joints between various pipe bodies and the pipe body installation positions is good.

Description

Heat Exchanger

technical field

The invention relates to a water heating device, in particular to a heat pump device or a heat exchanger in a boiler device for providing hot water to a place requiring a large amount of hot water, such as a swimming pool.

Background technique

Due to the high acidity of the water in the swimming pool, the heat exchanger shell can only be made of plastic. Now there is a heat exchanger specially used for making hot water in the swimming pool. The heat exchanger shell includes a cylindrical barrel and a cylindrical barrel. The two ports are sealed with a sealing plate, and the sealing plate and the barrel are welded and connected. After practical testing, this kind of shell can only bear a small water pressure, generally not exceeding 0.4MPa water pressure, otherwise the shell will explode violently.

Contents of the invention

Therefore, the purpose of the present invention is to provide a heat exchanger with a novel shell structure, high shell strength and a water pressure of 2.3 MPa.

The above purpose is achieved in this way:

A heat exchanger, including a plastic shell and a refrigerant coil, the refrigerant coil is arranged in the inner cavity of the shell, and the inlet and outlet ports of the refrigerant coil extend out of the shell;

The shell is divided into two sections, the shape and structure of the two sections of the shell are the same, and the shape of each section of the shell is cylindrical, including an annular side wall, an end surface and a port;

The ports of the two shells are connected by flanges to form a shell;

The end face is provided with a cross-shaped reinforcing rib, wherein a section of the cross-shaped reinforcing rib is a hollow body to form a water channel, and the water channel extends from the inner cavity of the housing to the outer body of the housing. There is a vortex plate, and the end face is also provided with at least two concentric annular reinforcing ribs, and the end face is also provided with at least three cylindrical pipe body installation positions, the pipe body installation positions axially penetrate the end face, and the pipe body installation positions The inner and outer ports are provided with sealing covers;

The annular side wall is provided with a plurality of radial annular reinforcing ribs and a plurality of axial linear reinforcing ribs, and the linear reinforcing ribs and the annular reinforcing ribs intersect perpendicularly;

The end face and the chamfer of the annular side wall are provided with arc-shaped reinforcing ribs connecting the two;

The refrigerant coil is erected between the two vortex plates of the two-section housing, the inlet and outlet ports of the refrigerant coil pass through the installation positions of the pipe body respectively, and the inlet and outlet ports of the refrigerant coil are installed with the pipe body. There is a sealing device between the positions;

The sealing device includes a sealant, an outer joint, a sealing ring and an inner joint. The sealant, the outer joint, the sealing ring and the inner joint are all sequentially worn on the pipe body, and the sealant is located on the innermost side and installed with the pipe body. The inner port of the pipe body is sealed and fit, and the outer tooth joint includes two sections of outer thread and a circle of minions, one of which is threaded with the inner ring side wall of the pipe body installation position so that the sealant is tightly connected to the inner port of the pipe body installation position Cooperate, the minion is connected with another section of external thread, the sealing ring is located inside the minion and surrounded by it, and the internal thread joint is provided with an internal thread, which is threadedly connected with the section of external thread, so that the sealing ring and the surface of the pipe body form a seal.

Above-mentioned technical scheme can also be further improved as follows:

A ring of inner grooves is provided on the surface of the port, the outer ring of the gasket used for flange connection is pressed between the inner grooves of the two ports, and the inner ring of the gasket is pressed between the two ports.

The structure design of the invention is reasonable. By dividing the shell into two sections from the middle, the two sections have the same structure, so the number of molds is reduced, and the production cost of the shell is reduced. The reasonable distribution of various reinforcing ribs greatly improves the explosion-proof level of the shell, and the heat exchange efficiency is improved through the turbulence of the vortex plate, and the joint sealing performance between various pipe bodies and pipe body installation positions is good.

Description of drawings

Fig. 1 is the top perspective view of embodiment;

Fig. 2 is an exploded sectional view of the axial direction of the housing;

Fig. 3 is a schematic diagram of the internal structure of the half-section housing;

Figure 4 is a bottom plan view of the housing;

Fig. 5 is an axial exploded view of the sealing device at the inlet end of the refrigerant coil;

Fig. 6 is a sectional view of the sealing device of Fig. 5;

Fig. 7 is a cross-sectional view of the sealing device showing the inlet and outlet ports after assembly in Fig. 5;

Figure 8 is an axial exploded view of the temperature measuring device;

Fig. 9 is an exploded view of the temperature measuring device in Fig. 8;

FIG. 10 is a cross-sectional view of FIG. 8 after assembly.

Detailed ways

The present invention will be described in further detail below in conjunction with accompanying drawings and embodiments.

Embodiments, with reference to FIGS. 1 to 10 , a heat exchanger includes a plastic shell 1 and a refrigerant coil (the refrigerant coil in the inner cavity of the shell is not shown), and the refrigerant coil is arranged in the inner cavity of the shell. The inlet and outlet ports 2 and 3 of the refrigerant coil extend out of the casing. The housing 1 is divided into two sections 4 and 5 in the middle of the axial direction. The two sections of the housing have the same shape and structure, and each section of the housing is cylindrical in shape and includes an annular side wall 6, an end surface 7 and One port 8.

The ports of the two sections of the housing are connected by flanges to form a completely sealed housing, and the surface of the ports is provided with a circle of inner grooves 9, and the outer ring of the gasket 10 used for the flange connection is pressed between the two sections. Between the inner grooves of the ports, the inner ring of the gasket 10 is compressed between the two ports.

The end face 7 is provided with a cross-shaped reinforcing rib 11, wherein a section of the cross-shaped reinforcing rib 11 is a hollow body to form a water channel 12, one port of the water channel 12 is located in the inner cavity of the housing, and the other port extends out of the housing. A vortex plate 13 is provided at the water channel port of the inner cavity of the housing, and the end face 7 is also provided with at least two concentric ring-shaped reinforcing ribs 14, and the end face is also provided with four cylindrical tube mounting positions 15, The installation position of the pipe body axially penetrates the end face, and the inner and outer ports of the installation position of the pipe body are provided with sealing covers.

The annular side wall 6 is provided with a plurality of radial annular reinforcing ribs 16 and a plurality of linear reinforcing ribs 17, which are evenly arranged, and the linear reinforcing ribs and the annular reinforcing ribs intersect perpendicularly.

The end face and the chamfer of the annular side wall are provided with an arc-shaped reinforcing rib 18 connecting the two.

The refrigerant coil is erected between the two vortex plates 13, and the two inlet and outlet ports 2 and 3 of the refrigerant coil pass through the installation positions of the pipe body respectively, and the inlet and outlet ports of the refrigerant coil are installed with the pipe body. There are sealing devices between the positions. The sealing device includes a sealant 19, an outer tooth joint 20, a sealing ring 21 and an inner tooth joint 22, and the sealant, the outer tooth joint, the sealing ring and the inner tooth joint all pass through the tubes of the inlet and outlet ports 2 and 3 in sequence. On the body, the sealant 19 is located on the innermost side and is tightly matched with the inner port 23 of the pipe body installation position 15. The external tooth joint 20 includes two sections of external threads 24, 25 and a circle of minions 26, and one section of the external thread 24 is connected to the pipe body. The side wall 27 of the inner ring of the installation position is threaded so that the sealant 19 is closely matched with the inner port 23 of the installation position of the pipe body. The minion 26 is connected with another section of the outer thread 25. The sealing ring 21 is located on the inner side of the minion and is surrounded by it. The inner tooth joint 22 is provided with internal thread, and it is threadedly connected with this section external thread 25, so that sealing ring 21 and pipe body surface form sealing.

A temperature measuring device is provided in the installation position of the pipe body, which includes a sealant 29, a sealing ring 30, a temperature measuring pipe body 31 and an outer tooth joint 32, and a temperature measuring electronic component is arranged in the temperature measuring pipe body, and the temperature measuring pipe body There is an outwardly expanded horn-shaped port 33, the sealant 29 and the sealing ring 30 are all worn on the temperature measuring tube body 31, the outer tooth joint 32 includes an end cap 34 and a hollow cylinder 35, and the outer surface of the hollow cylinder 35 is set External thread, the center of the end cover 34 is provided with a through hole 36, and a ring of protrusions 37 is provided on the inner surface of the end cover 34 around the through hole 36. The temperature measuring tube passes through the inner port 23 of the tube body installation position and extends into the inner cavity of the shell. The hollow column The body 35 is threadedly connected with the side wall 27 of the inner ring of the pipe body installation position, so that the protrusion 37 on the inner surface of the end cover is inserted into the trumpet-shaped port 33 of the temperature measuring pipe body to form a seal, and at the same time, the sealant 29 is formed with the inner port 23 of the pipe body installation position. seal.

Claims (2)

1. a heat exchanger comprises plastic casing and cold-producing medium coil pipe, and the cold-producing medium coil pipe is arranged at the housing inner chamber, the cold-producing medium coil pipe stretch out housing into and out of port;

Said housing is divided into two sections, and the shape of two-piece housing is identical with structure, and every piece housing profile is cylindric, comprises an annular sidewall, an end face and a port;

Be connected to form housing through flange between the port of said two-piece housing;

Said end face is provided with the cross ribs; It is ducted body to form aquaporin that one section ribs is wherein arranged in the cross ribs, and it is external that aquaporin extends to housing from the housing inner chamber, is provided with vortex board in the aquaporin port of housing inner chamber; Said end face also is provided with the concentric ring-type ribs of two circles at least; Said end face also is provided with three columned body installation positions at least, and end face is axially run through in the body installation position, and the inside and outside two-port of body installation position is provided with seal cover;

Said annular sidewall is provided with many annular ribs and many axial linearity ribs radially, and linearity ribs and annular ribs intersect vertically;

The chamfering place of said end face and annular sidewall is provided with the arc ribs that is connected both;

Said cold-producing medium coil pipe is erected between two vortex boards of two-piece housing, the passing from the body installation position respectively of cold-producing medium coil pipe into and out of port, the cold-producing medium coil pipe between port and body installation position, establish sealing device;

It is characterized in that: said sealing device comprises fluid sealant, outer tooth joint, sealing ring and Nei Ya joint; Fluid sealant, outer tooth joint, sealing ring and Nei Ya joint all are set on the body successively, and fluid sealant is positioned at the most inboard inner port with the body installation position and is sealed and matched, and outer tooth joint comprises two sections external screw teeths and a circle cat's paw; Wherein one section external screw teeth is connected with the inner ring sidewall thread of body installation position so that fluid sealant and body installation position inner port closely cooperate; The cat's paw is connected with another section external screw teeth, and sealing ring is positioned at the cat's paw inboard to be encircled by it, and interior tooth joint is provided with internal thread; It is threaded with this section external screw teeth, so that sealing ring and body surface form sealing.

2. according to the said heat exchanger of claim 1, it is characterized in that: said port surface is provided with a circle inner groovy, and the outer ring that said flange connects the sealing gasket of usefulness is pressed between the inner groovy of two-port, and the inner ring of sealing gasket is pressed between the two-port.

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