CN201748713U - High Efficiency Compact Heat Exchanger - Google Patents

Abstract

The utility model discloses a high-efficiency compact heat exchanger, which comprises an outer shell and two rows of inner coils connected in series or in parallel, the inner coils are located in the outer shell, and the inner coil and the outer shell are A refrigerant cavity is formed, openings are provided at both ends of the refrigerant cavity, and both ends of the inner coil protrude from the shell. The high-efficiency compact heat exchanger uses the refrigerant cavity between the inner coil and the shell as the channel for the refrigerant to flow, and uses the inner coil as the channel for the water to flow, so that the gap between the water and the refrigerant can be effectively increased. Excellent heat exchange efficiency, good heat exchange effect can be achieved with a small structure, and a large water flow rate can be guaranteed.

Description

High Efficiency Compact Heat Exchanger

technical field

The utility model relates to a heat exchanger, in particular to an efficient and compact heat exchanger.

Background technique

A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. Heat exchangers are common equipment in chemical, petroleum, power, food and many other industrial sectors, and play an important role in production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers Devices, etc., more widely used. There are many types of heat exchangers, but according to the principle and method of heat exchange between cold and hot fluids, they can basically be divided into three categories: partition type, hybrid type and heat storage type.

The current heat exchangers have a common shortcoming, that is, they are large in size and cannot be used in some places where the space is relatively narrow. For some heat exchangers with small volume, due to the limitation of their internal structure, the water flow rate is limited. Smaller, the heat transfer efficiency is not high.

Utility model content

Aiming at the deficiencies of the prior art above, the technical problem to be solved by the utility model is to provide a heat exchanger with simple structure, compact structure and high heat exchange efficiency.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A high-efficiency compact heat exchanger, which includes an outer shell and two rows of inner coils connected in series or in parallel, the inner coils are located in the outer shell, and a refrigerant cavity is formed between the inner coils and the outer shell , the two ends of the refrigerant cavity are provided with openings, and the two ends of the inner coil protrude from the shell.

Preferably, the outer casing includes an inner cylinder and an outer cylinder, the inner cylinder is located in the outer cylinder, the inner coil is coiled on the inner cylinder, and the upper and lower ends of the outer casing are respectively set There is an upper top cover and a lower bottom cover.

Preferably, the inner coil is a threaded pipe or a pipe with threads inside and ribs on the outside.

The above-mentioned technical solution has the following beneficial effects: the high-efficiency compact heat exchanger uses the refrigerant cavity between the inner coil and the outer casing as a channel for refrigerant flow, and uses the inner coil as a channel for water flow, so that it can effectively The efficiency of heat exchange between water and refrigerant can be greatly increased, and a small structure can achieve good heat exchange effect, and the use of two rows of inner coils can ensure a large water flow.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back. The specific embodiment of the utility model is given in detail by the following examples and accompanying drawings.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is a top view of the utility model embodiment.

Detailed ways

Preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the high-efficiency compact heat exchanger includes a shell 2 and two rows of inner coils 1. The two rows of inner coils can be connected in series or in parallel. The inner coils 1 can be threaded tubes or internally threaded. Pipes for fins. The inner coil 1 is located in the shell 2, and a refrigerant cavity is formed between the inner coil 1 and the shell 2. The upper end of the refrigerant cavity is provided with an opening 21, and the lower end is provided with an opening 22. The upper end 11 and the lower end of the inner coil 1 are 12 all stretch out shell 2. The shell 2 includes an inner cylinder 4 and an outer cylinder 3, the inner cylinder 4 is located in the outer cylinder 3, the inner coil 1 is coiled on the outer wall of the inner cylinder 4, the upper end of the shell 2 is provided with an upper top cover 5, and the lower end is provided with a lower Bottom cover6.

In the high-efficiency compact heat exchanger, the refrigerant cavity between the inner coil 1 and the shell 2 is used as a refrigerant flow channel, and the inner coil 1 is used as a water flow channel. When making a condenser, the refrigerant goes in and out, and the water goes in and out; when making an evaporator, the refrigerant goes in and out, and the water goes in and out. The two rows of inner coils can be connected in series or in parallel according to the size of the required water temperature change.

The heat pump water heater with this structure can effectively increase the heat exchange efficiency between water and refrigerant, and a small structure can achieve a good heat exchange effect, especially the use of two rows of inner coils can ensure a larger water flow rate. flow. The heat pump water heater also has the advantages of simple structure, compactness, less land occupation, large water flow channel, large water temperature change, and flexible assembly.

The high-efficiency compact heat exchanger provided by the embodiment of the utility model has been introduced in detail above. For those of ordinary skill in the art, according to the idea of the embodiment of the utility model, there will be specific implementation methods and application ranges. Changes, in summary, the content of this specification should not be construed as a limitation to the utility model, and any changes made according to the design concept of the utility model are within the protection scope of the utility model.

Claims (3)

1. high-efficiency compact type heat exchanger, it is characterized in that: it comprises the inner coil pipe of shell and two row's serial or parallel connections, described inner coil pipe is positioned at described shell, form the cold-producing medium cavity between described inner coil pipe and the described shell, described cold-producing medium cavity two ends are provided with opening, and described shell is stretched out at the two ends of described inner coil pipe.

2. high-efficiency compact type heat exchanger according to claim 1, it is characterized in that: described shell comprises an inner core and a urceolus, described inner core is positioned at described urceolus, and described inner coil pipe is coiled on the described inner core, and the upper/lower terminal of described shell is respectively equipped with upper top cover and lower bottom cover.

3. high-efficiency compact type heat exchanger according to claim 1 is characterized in that: described inner coil pipe is that screwed pipe or inside are the pipeline of fin for threaded exterior.

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