Anti-fouling and anti-blocking barrel type evaporator

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By incorporating a spiral-structured liquid path and refrigerant flow components within the barrel-type evaporator, the problems of dead zones in liquid flow and mechanical energy loss are solved, resulting in an evaporation system with high-efficiency heat exchange and low energy consumption.

CN223580286UActive Publication Date: 2025-11-21SANHE TONGFEI REFRIGERATION

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Patent Information

Application Number: CN202520002135.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-01-02
Publication Date: 2025-11-21
Estimated Expiration: 2035-01-02

AI Technical Summary

Technical Problem

Existing barrel-type evaporators suffer significant mechanical energy loss when the liquid flow direction changes, leading to increased energy consumption. Furthermore, dirt easily accumulates in the dead zones of liquid flow, reducing heat exchange efficiency.

Method used

A spiral liquid flow assembly and a refrigerant flow assembly are installed along the axial direction inside the evaporator shell to avoid dead zones in liquid flow, reduce dirt deposition, improve heat exchange efficiency, and reduce mechanical energy loss through counter-current heat exchange.

Benefits of technology

It reduces energy consumption, improves the efficiency of compressors and pumps, maintains effective heat exchange area, and reduces the operating cost of the evaporation system.

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Abstract

The utility model provides an anti-fouling and anti-blocking barrel type evaporator which comprises an evaporator shell, and a first cavity is formed in the evaporator shell; a liquid path inlet and a liquid path outlet are formed in the two ends, in the first axis direction, of the evaporator shell correspondingly. A refrigerant inlet and a refrigerant outlet are formed in the two ends, in the first axis direction, of the evaporator shell correspondingly. A liquid path circulation assembly and a refrigerant circulation assembly are arranged in the first cavity in the first axis direction in a spiral structure mode, the two ends of the liquid path circulation assembly communicate with the liquid path inlet and the liquid path outlet correspondingly, and the two ends of the refrigerant circulation assembly communicate with the refrigerant inlet and the refrigerant outlet correspondingly. The liquid path circulation assembly and the refrigerant circulation assembly are arranged in the first cavity in the first axis direction in a spiral structure mode, so that dead angles do not exist in the liquid flowing process, the flowing speed of liquid is prevented from being reduced, deposition of pollutants such as dirt and impurities is reduced, pollution is reduced, the heat exchange space is occupied, and the heat exchange efficiency is improved. And the effective heat exchange area is kept unchanged, and the heat exchange efficiency is prevented from being reduced.

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Description

TECHNICAL FIELD

[0001] The present application generally relates to the technical field of barrel evaporator, and particularly relates to an anti-fouling barrel evaporator. BACKGROUND

[0002] The barrel evaporator is generally composed of a barrel body and internal heating components or heat exchange components, and the unique structural design enables the material to form a specific flow pattern in the barrel, thereby improving the heat and mass transfer efficiency to a certain extent.

[0003] The existing barrel evaporator mostly adopts the baffle type for the refrigerant and the liquid path, and this baffle type design brings a series of technical problems. First, when the direction of the liquid movement in the evaporator changes, the mechanical energy loss is large, and in order to make up for this mechanical energy loss, the press and the pump need to provide additional mechanical energy for the liquid. This process not only increases the energy consumption, but also reduces the working efficiency of the press and the pump, thereby causing the operation cost of the entire evaporation system to rise. At the same time, the baffle type flow path has dead angles at the endpoints of each path, and in these dead angle areas, the liquid flow speed is significantly slowed down, which causes the dirt and impurities in the liquid to easily deposit. Moreover, these deposited pollutants are difficult to be removed by the conventional flushing method, and with the passage of time, the pollutants gradually invade the heat exchange space, reduce the effective heat exchange area, and further reduce the heat exchange efficiency. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide an anti-fouling barrel evaporator which can solve the above technical problems.

[0005] The present application provides an anti-fouling barrel evaporator, comprising:

[0006] An evaporator shell, the inside of the evaporator shell has a first cavity; the evaporator shell has a first axis, and the two ends of the evaporator shell along the direction of the first axis are respectively provided with a liquid path inlet and a liquid path outlet; and the two ends of the evaporator shell along the direction of the first axis are also respectively provided with a refrigerant inlet and a refrigerant outlet;

[0007] A liquid path flow-through assembly, which is arranged in the inside of the first cavity, and the two ends of the liquid path flow-through assembly are respectively communicated with the liquid path inlet and the liquid path outlet; and the liquid path flow-through assembly is arranged in a spiral structure along the direction of the first axis;

[0008] A refrigerant flow-through assembly, which is arranged in the inside of the first cavity, and the two ends of the refrigerant flow-through assembly are respectively communicated with the refrigerant inlet and the refrigerant outlet; and the refrigerant flow-through assembly is arranged in a spiral structure along the direction of the first axis.

[0009] According to the technical scheme provided in the application, the liquid path flow-through assembly and the refrigerant flow-through assembly are alternately arranged in the first cavity.

[0010] According to the technical scheme provided in the application, the liquid path flow-through assembly comprises a flow guide plate, which is arranged in a spiral manner along the first axis direction in the first cavity, and two ends of the flow guide plate are respectively communicated with the liquid path inlet and the liquid path outlet.

[0011] According to the technical scheme provided in the application, the refrigerant flow-through assembly comprises a refrigerant core pipe, and at least one refrigerant core pipe is arranged; the refrigerant core pipe is arranged in a spiral manner along the first axis direction in the first cavity, and two ends of the refrigerant core pipe are respectively communicated with the refrigerant inlet and the refrigerant outlet.

[0012] According to the technical scheme provided in the application, a center fixing rod is arranged in the middle of the first cavity along the first axis direction, and two ends of the center fixing rod are respectively fixedly connected with the inner wall of the evaporator shell; the flow guide plate and the refrigerant core pipe are respectively arranged in a spiral manner around the center fixing rod, and the flow guide plate and the refrigerant core pipe are both fixedly connected with the center fixing rod.

[0013] According to the technical scheme provided in the application, the liquid path inlet and the refrigerant outlet are located at one end of the evaporator shell along the first axis direction, and the liquid path outlet and the refrigerant inlet are located at the other end of the evaporator shell along the first axis direction.

[0014] According to the technical scheme provided in the application, a plurality of refrigerant core pipes are arranged, and the plurality of refrigerant core pipes are fixedly connected through a connecting piece.

[0015] According to the technical scheme provided in the application, a plurality of turbulence points are arranged on the flow guide plate.

[0016] The application has the following beneficial effects:

[0017] The application provides an anti-fouling barrel type evaporator, which comprises an evaporator shell, the inside of the evaporator shell is provided with a first cavity, and the evaporator shell has a first axis; a liquid inlet and a liquid outlet are arranged on the evaporator shell at two ends along the first axis direction respectively; meanwhile, a refrigerant inlet and a refrigerant outlet are arranged on the evaporator shell at the two ends along the first axis direction respectively; the liquid flow passing assembly and the refrigerant flow passing assembly are arranged in a spiral structure along the first axis direction in the first cavity respectively, the two ends of the liquid flow passing assembly are communicated with the liquid inlet and the liquid outlet respectively, and the two ends of the refrigerant flow passing assembly are communicated with the refrigerant inlet and the refrigerant outlet respectively; the liquid flow passing assembly and the refrigerant flow passing assembly are arranged in a spiral structure along the first axis direction in the first cavity, so that there is no dead angle in the liquid flow process, the flow speed of the liquid is prevented from slowing down, the deposition of dirt and impurity pollutants is reduced, pollution and occupation of heat exchange space are reduced, effective heat exchange area is maintained, heat exchange efficiency is prevented from being reduced, meanwhile, the direction of the liquid is not changed when the liquid moves in the evaporator, mechanical energy loss is small, the liquid does not need a press and a pump to provide additional mechanical energy, energy loss is reduced, the working efficiency of the press and the pump is improved, and the operation cost of the whole evaporation system is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the attached drawings:

[0019] Figure 1 is a front view of the inside of the evaporator shell of the anti-fouling barrel type evaporator provided by the application;

[0020] Figure 2 is a schematic view of the inside of the evaporator shell of the anti-fouling barrel type evaporator provided by the application;

[0021] Figure 3 is a schematic view of the anti-fouling barrel type evaporator provided by the application;

[0022] Figure 4 is a sectional view of the anti-fouling barrel type evaporator provided by the application;

[0023] In the drawings: 1, evaporator shell; 2, liquid inlet; 3, liquid outlet; 4, refrigerant inlet; 5, refrigerant outlet; 6, flow guide plate; 7, refrigerant core pipe; 8, center fixed rod; 9, connecting piece; 10, turbulence point. DETAILED DESCRIPTION

[0024] The application will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are intended to be illustrative only and not limiting of the application. In addition, it is to be understood that the drawings are diagrammatic and schematic and that therefore their details are intended to aid in the description and not to define the application.

[0025] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0026] Embodiment 1

[0027] Reference should be made to Figures 1-4 The application provides an anti-fouling barrel evaporator, comprising:

[0028] An evaporator shell 1, the inside of the evaporator shell 1 has a first cavity; the evaporator shell 1 has a first axis, and the evaporator shell 1 is provided with a liquid inlet 2 and a liquid outlet 3 at the two ends in the direction of the first axis, respectively; and the evaporator shell 1 is also provided with a refrigerant inlet 4 and a refrigerant outlet 5 at the two ends in the direction of the first axis, respectively;

[0029] A liquid flow assembly, the liquid flow assembly is arranged in the inside of the first cavity, and the two ends of the liquid flow assembly are in communication with the liquid inlet 2 and the liquid outlet 3, respectively; and the liquid flow assembly is arranged in a spiral structure in the direction of the first axis;

[0030] A refrigerant flow assembly, the refrigerant flow assembly is arranged in the inside of the first cavity, and the two ends of the refrigerant flow assembly are in communication with the refrigerant inlet 4 and the refrigerant outlet 5, respectively; and the refrigerant flow assembly is arranged in a spiral structure in the direction of the first axis.

[0031] Specifically, in the present embodiment, the direction of the first axis is a vertical direction;

[0032] Specifically, the cooled liquid enters the liquid flow assembly from the liquid inlet 2 and flows out from the liquid outlet 3, and the refrigerant enters the refrigerant flow assembly from the refrigerant inlet 4 and flows out from the refrigerant outlet 5; in the first cavity, the refrigerant flowing in the refrigerant flow assembly exchanges heat with the cooled liquid flowing in the liquid flow assembly.

[0033] Working principle: the application is provided with a liquid flow component and a refrigerant flow component arranged in a spiral structure along the first axis direction inside the first cavity, so that there is no dead angle in the flow of the liquid, the flow speed of the liquid is prevented from slowing down, the deposition of dirt and impurity pollutants is reduced, the pollution and occupation of the heat exchange space are reduced, the effective heat exchange area is maintained, and the heat exchange efficiency is prevented from being reduced; meanwhile, the direction of the liquid does not change when the liquid moves in the evaporator, the mechanical energy loss is small, the liquid does not need to be provided with additional mechanical energy by the compressor and the pump, the energy loss is reduced, the working efficiency of the compressor and the pump is improved, and the operation cost of the entire evaporation system is reduced.

[0034] In some embodiments, the liquid flow component and the refrigerant flow component are alternately arranged in the first cavity.

[0035] Specifically, as shown in Figure 1 and Figure 2 , the liquid flow component and the refrigerant flow component are alternately arranged in the first cavity, so that the cooled liquid and the refrigerant fully exchange heat, the refrigeration effect of the cooled liquid is improved, and the heat exchange efficiency is improved.

[0036] In some embodiments, the liquid flow component comprises a flow guide plate 6 arranged in a spiral structure along the first axis direction inside the first cavity, and the two ends of the flow guide plate 6 are respectively communicated with the liquid inlet 2 and the liquid outlet 3.

[0037] Specifically, as shown in Figure 1 and Figure 2 , the liquid flow component comprises a flow guide plate 6 arranged in a spiral structure along the first axis direction inside the first cavity, and the two ends of the flow guide plate 6 are respectively communicated with the liquid inlet 2 and the liquid outlet 3; the cooled liquid enters the flow guide plate 6 from the liquid inlet 2, the flow guide plate 6 guides the cooled liquid to the liquid outlet 3, and the cooled liquid flows out of the evaporator shell 1; in this embodiment, the flow guide plate 6 is designed in a spiral structure, so that there is no dead angle in the flow of the cooled liquid, and the deposition of dirt and impurity pollutants is reduced.

[0038] In some embodiments, as shown in Figure 4 , a plurality of turbulence points 10 are arranged on the flow guide plate 6; when the cooled liquid flows on the flow guide plate 6, the turbulence points 10 are constantly scoured, so that the turbulence points 10 break the laminar flow state of the liquid, increase the turbulent flow speed of the cooled liquid, and the water flow constantly scours the surface of the flow guide plate 6, so that the pollutants are difficult to deposit, and the pollutants are taken out of the evaporator shell 1 along with the cooled liquid through the liquid outlet 3.

[0039] In some embodiments, the refrigerant flow component comprises at least one refrigerant core pipe 7 arranged in a spiral structure along the first axis direction inside the first cavity, and the two ends of the refrigerant core pipe 7 are respectively communicated with the refrigerant inlet 4 and the refrigerant outlet 5.

[0040] Specifically, the refrigerant circulation assembly comprises the refrigerant core pipe 7, the refrigerant enters the refrigerant core pipe 7 from the refrigerant inlet 4, and the refrigerant core pipe 7 carries the refrigerant to the refrigerant outlet 5 and flows out of the evaporator shell 1.

[0041] In some embodiments, the refrigerant core pipe 7 is provided in plurality to enhance the heat exchange effect; in the present embodiment, the refrigerant core pipe 7 is provided in three, the three refrigerant core pipes 7 are provided in spiral manner, and the three refrigerant core pipes 7 are arranged in array; the three refrigerant core pipes 7 are fixedly connected through the connecting piece 9 to prevent the refrigerant core pipe 7 from being deviated and to enhance the connection between the refrigerant core pipes 7.

[0042] In some embodiments, the central fixed rod 8 is arranged in the middle of the first cavity along the first axis direction, and the two ends of the central fixed rod 8 are fixedly connected with the inner wall of the evaporator shell 1; the flow guide plate 6 and the refrigerant core pipe 7 are arranged in spiral manner around the central fixed rod 8, and the flow guide plate 6 and the refrigerant core pipe 7 are fixedly connected with the central fixed rod 8.

[0043] Specifically, the central fixed rod 8 can provide a stable support and fixing point for the flow guide plate 6 and the refrigerant core pipe 7, effectively limit the deformation and displacement of the flow guide plate 6 and the refrigerant core pipe 7, and ensure that the flow guide plate 6 and the refrigerant core pipe 7 maintain stable shape and position in the complex fluid environment, thereby guaranteeing the normal work and service life of the flow guide plate 6 and the refrigerant core pipe 7.

[0044] In some embodiments, the liquid inlet 2 and the refrigerant outlet 5 are located at one end of the evaporator shell 1 along the first axis direction, and the liquid outlet 3 and the refrigerant inlet 4 are located at the other end of the evaporator shell 1 along the first axis direction.

[0045] Specifically, as shown in Figure 1 and Figure 3 , the liquid inlet 2 and the refrigerant outlet 5 are located at one end of the evaporator shell 1 along the first axis direction, and the liquid outlet 3 and the refrigerant inlet 4 are located at the other end of the evaporator shell 1 along the first axis direction; that is, in the present embodiment, the liquid inlet 2 and the refrigerant outlet 5 are located at the top end of the evaporator shell 1, and the liquid outlet 3 and the refrigerant inlet 4 are located at the bottom end of the evaporator shell 1; at this time, in the first cavity, the cooled liquid flows along the flow guide plate 6 in spiral manner from top to bottom, and the refrigerant flows in the refrigerant core pipe 7 in spiral manner from bottom to top, so that the countercurrent heat exchange between the cooled liquid and the refrigerant is realized;

[0046] In the counterflow heat exchange, the refrigerant and the cooled liquid always keep a large temperature difference during the whole heat exchange process, and the cooled liquid continuously transfers heat to the refrigerant during the flow process, so that the refrigerant can more fully absorb heat, thereby improving the heat transfer efficiency; and due to the high heat transfer efficiency of the counterflow heat exchange, in the case of transferring the same heat, compared with other heat exchange modes, the required heat exchange area is relatively small; at the same time, the counterflow heat exchange can more effectively utilize the temperature difference, and in the case of achieving the same heat exchange effect, the required liquid flow is relatively small, thereby reducing the power consumption in the liquid conveying process.

[0047] The above description is merely the preferred embodiments of the present application and the explanation of the technical principles applied. It should be understood by those skilled in the art that the inventive scope involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combinations of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. A fouling-resistant barrel evaporator characterized by, The application relates to an evaporator shell (1) with a first cavity in the interior of the evaporator shell (1); the evaporator shell (1) has a first axis, and a liquid inlet (2) and a liquid outlet (3) are arranged at the two ends of the evaporator shell (1) along the first axis direction respectively; and a refrigerant inlet (4) and a refrigerant outlet (5) are also arranged at the two ends of the evaporator shell (1) along the first axis direction respectively. A liquid flow assembly is arranged in the interior of the first cavity, and the two ends of the liquid flow assembly are communicated with the liquid inlet (2) and the liquid outlet (3) respectively; and the liquid flow assembly is arranged in a spiral structure along the first axis direction. A refrigerant flow assembly is arranged in the interior of the first cavity, and the two ends of the refrigerant flow assembly are communicated with the refrigerant inlet (4) and the refrigerant outlet (5) respectively; and the refrigerant flow assembly is arranged in a spiral structure along the first axis direction. The liquid flow assembly and the refrigerant flow assembly are arranged alternately in the first cavity.

2. A fouling-resistant barrel evaporator according to claim 1, wherein The liquid flow assembly comprises a flow guide plate (6) arranged in a spiral structure in the first cavity along the first axis direction, and the two ends of the flow guide plate (6) are communicated with the liquid inlet (2) and the liquid outlet (3) respectively.

3. A fouling resistant barrel evaporator as claimed in claim 1, wherein, The refrigerant flow assembly comprises at least one refrigerant core pipe (7), and the refrigerant core pipe (7) is arranged in a spiral structure in the first cavity along the first axis direction, and the two ends of the refrigerant core pipe (7) are communicated with the refrigerant inlet (4) and the refrigerant outlet (5) respectively.

4. A fouling-resistant barrel evaporator according to claim 3, wherein A central fixing rod (8) is arranged in the middle of the first cavity along the first axis direction, and the two ends of the central fixing rod (8) are fixedly connected with the inner wall of the evaporator shell (1); the flow guide plate (6) and the refrigerant core pipe (7) are arranged in a spiral structure around the central fixing rod (8) respectively, and the flow guide plate (6) and the refrigerant core pipe (7) are fixedly connected with the central fixing rod (8).

5. A fouling-resistant barrel evaporator according to claim 4, wherein The liquid inlet (2) and the refrigerant outlet (5) are located at one end of the evaporator shell (1) along the first axis direction, and the liquid outlet (3) and the refrigerant inlet (4) are located at the other end of the evaporator shell (1) along the first axis direction.

6. A fouling-resistant barrel evaporator as claimed in claim 1, wherein, The refrigerant core pipe (7) is provided with a plurality of refrigerant core pipes (7), and the refrigerant core pipes (7) are fixedly connected through connecting pieces (9).

7. A fouling resistant barrel evaporator as claimed in claim 4, wherein, A plurality of turbulence points (10) are arranged on the flow guide plate (6).

8. A fouling resistant barrel evaporator as claimed in claim 3, wherein,