CN112432361A

CN112432361A - Condensation heat exchanger of central heating system

Info

Publication number: CN112432361A
Application number: CN202011305927.8A
Authority: CN
Inventors: 包建忠; 闵华军; 王正阳
Original assignee: Wuxi Xizhou Machinery Co ltd
Current assignee: Wuxi Xizhou Machinery Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-03-02

Abstract

The invention relates to the technical field of heating system component design, in particular to a condensation heat exchanger of a central heating system, aiming at solving the problem that in the prior art, water flow passes through a heat exchange tube independently and the water temperature rises insufficiently, and the technical key points are as follows: the heat exchange tube comprises a housing, casing length direction both ends are provided with the end plate, the end plate is used for covering casing length direction both ends, be provided with a plurality of edges in the casing the heat exchange tube that casing length direction extended to set up, wherein two communicate respectively on the heat exchange tube has water inlet and delivery port, all the other the heat exchange tube communicates the setting each other, the heat exchange tube inner wall is fixed with the installation pole, the water conservancy diversion awl of equidistance distribution has been cup jointed to the outer wall of installation pole, the water conservancy diversion awl with the cooperation of heat exchange tube inner wall is used. When water flows in the heat exchange tube, the water in the heat exchange tube can be closer to the inner wall of the heat exchange tube through the flow guide cone, so that the heat transfer efficiency is improved.

Description

Condensation heat exchanger of central heating system

Technical Field

The invention relates to the technical field of heating system component design, in particular to a condensation heat exchanger of a central heating system.

Background

The heat exchange pipe is equipment for transferring partial heat of hot fluid to cold fluid, plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production and is widely applied. A heat exchanger for recovering and utilizing the latent heat of vaporization of water vapor in flue gas is generally defined as a condensing heat exchanger. The commonly used condensing heat exchanger generally comprises a combustion chamber and a heat exchange zone, and heat exchange tubes in the heat exchange zone are subjected to heat exchange through the combustion chamber.

The two ends of a heat exchange tube in the condensing heat exchanger in the prior art are respectively fixed on an end plate of the condensing heat exchanger, water enters from one end and exits from the other end, the water temperature heating path is short, so that the water temperature is easy to rise insufficiently, and the heating condition cannot be effectively realized.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect of insufficient water temperature rise in the prior art, and provide a condensing heat exchanger of a central heating system.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a central heating system condensation heat exchanger, includes the casing, the casing passes through the cold extrusion of cuboid panel, casing length direction both ends are provided with the end plate, the end plate is used for covering casing length direction both ends, be provided with a plurality of edges in the casing the heat exchange tube that casing length direction extended the setting, wherein two communicate respectively on the heat exchange tube has water inlet and delivery port, all the other the heat exchange tube communicates the setting each other, the heat exchange tube inner wall is fixed with the installation pole, the water conservancy diversion awl of equidistance distribution has been cup jointed to the outer wall of installation pole, the water conservancy diversion awl with the cooperation of heat exchange tube inner wall is used.

Preferably, a plurality of connecting pipelines are arranged on the end plate and are used for connecting adjacent heat exchange tubes.

Preferably, the water inlet is connected with a water inlet pipe, and the water inlet pipe is vertically arranged and extends upwards.

Preferably, the shell is divided into two parts, the two parts are a combustion chamber and a heat exchange region respectively, the heat exchange region is located below the combustion chamber, part of the heat exchange tubes are located on two sides of the combustion chamber in the width direction, and the rest of the heat exchange tubes are located below the combustion chamber.

Preferably, the heat exchange tubes are divided into two groups, namely a first group of heat exchange tubes and a second group of heat exchange tubes, wherein the first group of heat exchange tubes are positioned on the side wall of the combustion chamber in the width direction, and the second group of heat exchange tubes are arranged in an array in the width direction of the shell.

Preferably, the number of the first group of heat exchange tubes is two, and the two first group of heat exchange tubes are respectively communicated with the water inlet and the water outlet.

The condensing heat exchanger of the central heating system is adjacent to each other, the communicating arrangement is arranged between the heat exchange tubes, in the using process, the communicating arrangement is arranged between the heat exchange tubes, in the application process, water flow for heat exchange is guided in through a water inlet and is discharged through a water outlet, the heat exchange water can be kept circulating in the heat exchanger, the arrangement between the heat exchange tubes ensures that the heat exchange tubes can be fully contacted with gas in a combustion chamber, the heat exchange efficiency in the heat exchanger can be effectively improved, meanwhile, the arrangement of the flow guide cone is realized, the water in the heat exchange tubes can be more close to the inner wall of the heat exchange tubes through the flow guide cone in the internal flowing process of the heat exchange tubes, the heat transfer efficiency is improved, the structure is reasonable, and the practicability is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a condensing heat exchanger of a central heating system according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a heat exchange tube according to an embodiment of the present invention.

Description of reference numerals:

1. a housing; 11. an end plate; 111. connecting a pipeline; 12. a combustion chamber; 13. a heat exchange zone; 2. a heat exchange pipe; 20. mounting a rod; 21. a water inlet; 211. a water inlet pipe; 29. and (4) a flow guide cone.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a condensing heat exchanger of a central heating system comprises a shell 1, a water inlet 21 and a water outlet, wherein the shell 1 is subjected to cold extrusion through a rectangular plate, end plates 11 are arranged at two ends of the shell 1 in the length direction, the end plates 11 are used for covering two ends of the shell 1 in the length direction, a plurality of heat exchange tubes 2 extending along the length direction of the shell 1 are arranged in the shell 1, two of the heat exchange tubes 2 are communicated with the water inlet 21 and the water outlet, and the rest of the heat exchange tubes 2 are communicated with each other.

Referring to fig. 1, the heat exchange tubes 2 are divided into two groups, namely a first group of heat exchange tubes 2 and a second group of heat exchange tubes 2, the first group of heat exchange tubes 2 are located on the side walls of the bottom of the shell 1 in the width direction, and the second group of heat exchange tubes 2 are arranged in an array along the width direction of the shell 1. In one embodiment, two first groups of heat exchange tubes 2 are provided, the water inlet 21 is connected to one first group of heat exchange tubes 2, the water outlet is connected to the other first group of heat exchange tubes 2, and the water inlet 21 and the water outlet are respectively located at two ends of the housing 1 in the length direction. In an embodiment, the inner wall of the heat exchange tube 2 is fixed with the installation rod 20, the outer wall of the installation rod 20 is sleeved with the diversion cones 29 which are distributed equidistantly, the outer wall of the diversion cone 29 is matched with the inner wall of the heat exchange tube 2 for use, and when water flows in the heat exchange tube 2, the water in the heat exchange tube 2 can be closer to the inner wall of the heat exchange tube 2 through the diversion cone 29, so that the heat transfer efficiency is improved.

Referring to fig. 1, in one embodiment, a plurality of connecting pipes 111 are disposed on the end plate 11, and the connecting pipes 111 are used for connecting adjacent heat exchange pipes 2.

Referring to fig. 1, a water inlet pipe 211 is connected to the water inlet 21, and the water inlet pipe 211 is vertically arranged and extends upward.

Referring to fig. 1, the interior of the housing 1 is divided into two parts, namely a combustion chamber 12 and a heat exchange region 13, wherein the heat exchange region 13 is located above the combustion chamber 12, and in one embodiment, the two first groups of heat exchange tubes 2 are located on two sides of the combustion chamber 12 in the width direction. The second group of heat exchange tubes 2 is positioned above the combustion chamber 12. In one embodiment, the housing 1 is open at the top for facilitating the discharge of exhaust gas.

The utility model provides a central heating system condensation heat exchanger, it is through with adjacent intercommunication sets up between the heat exchange tube 2, and in the application, the rivers for the heat transfer are led in through water inlet 21 to discharge through the delivery port, heat transfer hydroenergy can keep circulating in the heat exchanger, and through the range between heat exchange tube 2, guaranteed that heat exchange tube 2 can fully contact with the gas in the combustion chamber 12, thereby make the inside heat exchange efficiency of heat exchanger can obtain promoting effectively. The setting of water conservancy diversion awl simultaneously for water in the heat exchange tube can let the inner wall of heat exchange tube more press close to through the water conservancy diversion awl at the inside flow in-process of heat exchange tube when water, thereby has improved the efficiency of heat transfer, and is rational in infrastructure, and the practicality is stronger.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A central heating system condensation heat exchanger which characterized in that: including casing (1), casing (1) is through cuboid panel cold extrusion, casing (1) length direction both ends are provided with end plate (11), end plate (11) are used for covering casing (1) length direction both ends, be provided with a plurality of edges in casing (1) length direction extends heat exchange tube (2) that set up, wherein two communicate respectively on heat exchange tube (2) have water inlet (21) and delivery port, all the other heat exchange tube (2) communicate the setting each other, heat exchange tube (2) inner wall is fixed with installation pole (20), the water conservancy diversion awl (29) that the equidistance distributes have been cup jointed to the outer wall of installation pole (20), water conservancy diversion awl (29) with heat exchange tube (2) inner wall cooperation is used.

2. A central heating system condensing heat exchanger according to claim 1, characterized in that: the end plate (11) is provided with a plurality of connecting pipelines (111), and the connecting pipelines (111) are used for connecting adjacent heat exchange pipes (2).

3. A central heating system condensing heat exchanger according to claim 2, characterized in that: the water inlet (21) is connected with a water inlet pipe (211), and the water inlet pipe (211) is vertically arranged and extends upwards.

4. A central heating system condensing heat exchanger according to claim 3, wherein: the shell (1) is internally divided into two parts, the two parts are a combustion chamber (12) and a heat exchange region (13), the heat exchange region (13) is positioned below the combustion chamber (12), part of the heat exchange tubes (2) are positioned on two sides of the combustion chamber (12) in the width direction, and the rest of the heat exchange tubes (2) are positioned below the combustion chamber (12).

5. A central heating system condensing heat exchanger according to claim 4, wherein: the heat exchange tubes (2) are divided into two groups, namely a first group of heat exchange tubes (2) and a second group of heat exchange tubes (2), wherein the first group of heat exchange tubes (2) are located on the side wall of the width direction of the combustion chamber (12), and the second group of heat exchange tubes (2) are arranged in an array mode in the width direction of the shell (1).

6. A central heating system condensing heat exchanger according to claim 5, wherein: the first group of heat exchange tubes (2) are provided with two, and the two first group of heat exchange tubes (2) are respectively communicated with the water inlet (21) and the water outlet.