Shell and tube evaporator
By incorporating a shell-type structure with a gap between the baffle and the back plate inside the evaporator and using stainless steel or aluminum alloy materials, the problems of high production cost and low cooling efficiency of existing evaporators are solved, achieving high-efficiency refrigeration and recirculation of coolant.
Patent Information
- Application Number
- CN202210650875.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-10
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2042-06-10
AI Technical Summary
Existing evaporators have high production costs and low cooling efficiency, mainly due to the limited contact area between pipes and heat exchange components.
It adopts a shell-and-shell evaporator structure, and by setting a gap between the baffle and the back plate in the evaporation chamber, the coolant flows along the gap, increasing the contact area with the heat exchange components, and stainless steel or aluminum alloy materials are used to improve thermal conductivity.
It improves refrigeration efficiency, reduces production costs, and enables efficient recycling of the coolant.
Smart Images
Figure CN115046331B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of evaporator, in particular to a shell type evaporator. BACKGROUND
[0002] Evaporation is a physical process of converting liquid into gas. Generally speaking, the evaporator is the object of converting liquid into gas. The evaporator is a very important component in the four major parts of refrigeration. The low-temperature condensed liquid passes through the evaporator and exchanges heat with the air outside, vaporizes and absorbs heat to achieve the effect of refrigeration.
[0003] The existing evaporator is generally a pipeline laid on the heat exchange component. The pipeline is generally fixed in a serpentine shape on the heat exchange component. The coolant is introduced into the pipeline to cool the heat exchange component. However, such structure has complex processing technology and high production cost. Moreover, due to the limited contact area between the pipeline and the heat exchange component, the contact area between the coolant and the heat exchange component is small, and the cooling efficiency is low. Therefore, the shell type evaporator is designed to reduce the production cost of the evaporator and greatly improve the cooling efficiency. SUMMARY
[0004] The purpose of the present application is to provide a shell type evaporator to improve the cooling efficiency of the evaporator and reduce the production cost of the evaporator.
[0005] The present application provides the following technical solution: a shell type evaporator, comprising a heat exchange component, a evaporation shell body is arranged on the back plate of the heat exchange component, a closed cavity is formed between the evaporation shell body and the back plate, a partition plate is arranged in the upper part of the cavity, the three end portions of the partition plate are fixedly connected with the inner wall of the evaporation shell body, a gap is formed between the partition plate and the back plate of the heat exchange component, the partition plate divides the cavity into a large cavity and a small cavity, an inlet pipe is fixed on the evaporation shell body, the inlet pipe is communicated with the small cavity, and the inlet pipe is used for introducing heat exchange medium into the small cavity. A return pipe is arranged in the large cavity below the partition plate and is fixedly connected with the evaporation shell body.
[0006] According to the above technical solution, the bottom of the cavity is provided with a deicing inlet pipe which is fixedly connected with the evaporation shell body.
[0007] According to the above technical solution, the deicing inlet pipe is uniformly provided with a plurality of inlet holes along the length direction.
[0008] According to the above technical solution, the return pipe is uniformly provided with a plurality of return holes along the length direction.
[0009] According to the above technical solution, the heat exchange component and the evaporation shell body are made of stainless steel or aluminum alloy.
[0010] According to the above technical solution, the heat exchange component is an ice grid plate of an ice maker.
[0011] Compared with the prior art, the present application has the beneficial effects that: by arranging the partition plate in the evaporation chamber, the gap between the partition plate and the back plate is formed, the cooling liquid flows into the evaporation chamber from the inlet pipe, flows along the back plate in the gap between the partition plate and the back plate, and cools the heat exchange component, thereby increasing the heat exchange area with the back plate and further improving the refrigeration efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:
[0013] Figure 1 is a schematic view of the internal structure of the present application;
[0014] Figure 2 is a schematic view of the internal structure of the present application;
[0015] In the drawings: 1, heat exchange component; 11, back plate; 2, evaporation shell; 3, partition plate; 4, inlet pipe; 5, return pipe; 51, return hole; 6, ice removal inlet pipe; 61, inlet hole. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0017] Please refer to Figure 2This invention provides a technical solution: a shell-and-shell evaporator, including a heat exchange component 1. An evaporation shell 2 is disposed on the back plate 11 of the heat exchange component 1, forming a sealed cavity between the evaporation shell 2 and the back plate 11. In this embodiment, the evaporation shell is a cuboid shell. A partition 3 is disposed at the upper part of the cavity. The three ends of the partition 3 are fixedly connected to the inner wall of the evaporation shell 2. Specifically, one end of the partition is fixedly connected to the corner between the rear end plate and the upper end plate of the evaporation shell, and the other two ends of the partition are connected to the side plates of the evaporation shell. A gap is formed between the partition 3 and the back plate 11 of the heat exchange component 1, and the partition 3 divides the cavity. The evaporator consists of a large cavity and a small cavity. An inlet pipe 4 is fixed on the evaporator shell 2 and communicates with the small cavity. The inlet pipe 4 is used to introduce heat exchange medium into the small cavity. A return pipe 5 is also provided in the large cavity near the bottom of the partition 3. The return pipe 5 is fixedly connected to the evaporator shell 2 and the outlet of the return pipe is located on the surface of the evaporator shell. The coolant enters from the inlet pipe 4 and fills the small cavity on the partition 3 under pressure. The coolant flows down the back plate 11 from the gap between the partition 3 and the back plate 11, forming a waterfall-like fluid, which increases the contact area between the coolant and the heat exchange component 1 and improves the refrigeration efficiency compared to the existing evaporator.
[0018] like Figure 1 As shown, a de-icing inlet pipe 6 is provided at the bottom of the cavity. The de-icing inlet pipe 6 is fixedly connected to the evaporation shell 2. Before de-icing, high-temperature gas is introduced into the de-icing inlet pipe 6 and flows into the evaporation chamber 2 to raise the temperature in the evaporation chamber 2, so that the ice in the heat exchange component 1 melts and detaches from the surface of the heat exchange component, making it easy to remove the ice.
[0019] The de-icing inlet pipe 6 has several inlet holes 61 evenly distributed along its length. High-temperature gas enters from the de-icing inlet pipe 6 and is evenly introduced into the evaporator shell 2 along the inlet holes 61, so that the temperature inside the evaporator shell 2 rises evenly.
[0020] The return pipe 5 has several return holes 51 evenly distributed along its length. The vaporized coolant will flow upward from the bottom, flow into the return pipe 5 from the return holes 51, and finally flow into the condenser through the return pipe 5, thus realizing the recycling of the coolant.
[0021] The heat exchange component 1 and the evaporator shell 2 are made of stainless steel or aluminum alloy. Stainless steel or aluminum alloy improves the thermal conductivity of the heat exchange component 1 and the evaporator shell 2, thereby improving the cooling efficiency.
[0022] Heat exchange component 1 is the ice grid of the ice maker.
[0023] Cooling process: the coolant enters from the inlet pipe on the evaporation shell, fills the small cavity on the partition under the action of pressure, then flows out from the gap between the partition and the back plate, flows down along the back plate, exchanges heat with the back plate, at the same time, the coolant changes from liquid to gas during falling, the gaseous coolant backflows upward, thereby flows to the return pipe, flows into the return pipe from the return hole, the return pipe is connected with the condenser, and the circulation of the coolant is realized;
[0024] When ice needs to be removed, the valve of the ice-removing inlet pipe is opened, high-temperature gas is introduced, the temperature in the evaporation shell is increased, the temperature of the back plate of the heat exchange component is increased, the ice block is melted, and ice removal is realized.
[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A shell-and-shell evaporator, characterized in that: The device includes a heat exchange component, an evaporator shell disposed on the back plate of the heat exchange component, forming a sealed cavity between the evaporator shell and the back plate, a baffle plate disposed at the upper part of the cavity, the three ends of the baffle plate being fixedly connected to the inner wall of the evaporator shell, a gap being formed between the baffle plate and the back plate of the heat exchange component, the baffle plate dividing the cavity into a large cavity and a small cavity, an inlet pipe fixed on the evaporator shell, the inlet pipe communicating with the small cavity, the inlet pipe being used to introduce heat exchange medium into the small cavity, and a return pipe disposed in the large cavity near the bottom of the baffle plate, the return pipe being fixedly connected to the evaporator shell; The bottom of the cavity is provided with an ice removal inlet pipe, which is fixedly connected to the evaporation shell; The de-icing inlet pipe has several inlet holes evenly distributed along its length. The return pipe has several return holes evenly distributed along its length.
2. The shell-and-shell evaporator according to claim 1, characterized in that: The heat exchange components and evaporator shell are made of stainless steel or aluminum alloy.
3. The shell-and-shell evaporator according to claim 1, characterized in that: The heat exchange component is the ice tray of an ice maker.