Shell and tube integrated oil cooling condenser

Abstract

The utility model provides a shell and tube integrated oil cooling condenser. Comprising a heat exchanger body, tube plate flanges fixedly arranged at the two ends of the heat exchanger body, a plurality of heat exchange tubes arranged in the heat exchanger body, a first sealing head and a second sealing head, wherein the two ends of each heat exchange tube are fixedly connected with the tube plate flanges respectively; inner partition plates are fixedly connected between the first end socket and the corresponding tube plate flanges and between the second end socket and the corresponding tube plate flanges, the first end socket and the second end socket are divided into water cavities and oil cavities by the inner partition plates, and the oil inlet and the oil outlet are communicated with the oil cavities respectively; the water inlet and the water outlet are respectively communicated with the water cavity; the refrigerant inlet and the refrigerant outlet are respectively communicated with an inner cavity of the heat exchanger body, a condenser and an oil cooler are designed in one heat exchanger, and water and oil are separated in the heat exchanger by a customized inner partition plate seal head.

Description

Technical Field

[0001] This application relates to the field of compressor manufacturing, and more specifically, to a shell-and-tube integrated oil-cooled condenser. Background Technology

[0002] In the prior art, due to the excessively high exhaust temperature of the equipment, a low-temperature unit needs to add an oil cooler to cool the compressor's refrigeration oil. The traditional design concept of low-temperature units is to configure an oil cooler in the system to cool the compressor's refrigeration oil when the exhaust temperature of the equipment's compressor is too high. However, since the oil cooler is large and requires a separate water pipe for heat exchange, it affects the equipment layout and manufacturing, and the equipment cost is also high. In view of this, those skilled in the art need to improve the existing condenser to overcome the above-mentioned defects. Utility Model Content

[0003] The main objective of this application is to provide a shell-and-tube integrated oil-cooled condenser, which integrates the condenser and oil cooler within a single heat exchanger and uses a custom-designed internal baffle head to separate water and oil within the heat exchanger.

[0004] To achieve the above objectives, in a first aspect, this application provides a shell-and-tube integrated oil-cooled condenser, comprising a heat exchanger body, tube sheet flanges fixedly disposed at both ends of the heat exchanger body, a plurality of heat exchange tubes disposed within the heat exchanger body and fixedly connected at both ends to the tube sheet flanges, a first end cap and a second end cap fixedly disposed outside the tube sheet flanges at both ends, wherein the first end cap and the second end cap are each fixedly connected to the corresponding tube sheet flange by an inner partition plate, the inner partition plate dividing the first end cap and the second end cap into a water chamber and an oil chamber, and further comprising an oil inlet and an oil outlet respectively connected to the oil chamber; a water inlet and a water outlet respectively connected to the water chamber; and a refrigerant inlet and a refrigerant outlet respectively connected to the inner cavity of the heat exchanger body.

[0005] Optionally, the inner partition is detachably connected to the first end cap, the second end cap, and the corresponding tube sheet flange.

[0006] Optionally, the inner partition is provided with a sealing structure between itself and the first end cap, the second end cap, and the corresponding tube sheet flange.

[0007] Optionally, the oil inlet is connected to the oil cavity of the first end cap, and the oil outlet is connected to the oil cavity of the second end cap.

[0008] Optionally, the inlet is connected to the water cavity of the first end cap, and the outlet is connected to the water cavity of the second end cap.

[0009] Optionally, a partition plate is also fixedly provided between the first end cap and its corresponding tube sheet flange. The partition plate divides the water cavity into an inlet cavity and an outlet cavity. The inlet is connected to the inlet cavity, and the outlet is connected to the outlet cavity.

[0010] Optionally, the number of pipe holes corresponding to the tube sheet flange in the water cavity is greater than the number of pipe holes corresponding to the tube sheet flange in the oil cavity.

[0011] The shell-and-tube integrated oil-cooled condenser provided by this utility model has the following advantages compared with the prior art: the high-temperature refrigerant gas exchanges heat with water in the upper part of the heat exchanger shell and condenses into a medium-temperature refrigerant liquid, which flows into the lower part of the shell and exchanges heat with the refrigeration oil in the heat exchange tube, thereby reducing the temperature of the refrigeration oil in the system. The vaporized refrigerant gas then returns to the upper part to exchange heat with water and condense again. The unvaporized refrigerant liquid at the bottom normally enters the system for circulation and refrigeration. Since the condenser and oil cooler are designed in one heat exchanger, the space occupied is small. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] Figure 2 It is a tube layout diagram for the first or second end cap.

[0015] The components are: 1. Heat exchanger body; 2. First end cap; 3. Second end cap; 4. Inner baffle; 5. Oil inlet; 6. Oil outlet; 7. Water inlet; 8. Water outlet; 9. Refrigerant inlet; 10. Refrigerant outlet. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0018] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0019] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] In addition, the term "multiple" should mean two or more.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1:

[0023] like Figures 1-2As shown, a shell-and-tube integrated oil-cooled condenser includes a heat exchanger body 1, tube sheet flanges fixedly disposed at both ends of the heat exchanger body 1, a plurality of heat exchange tubes disposed inside the heat exchanger body 1 and fixedly connected at both ends to the tube sheet flanges, a first end cap 2 and a second end cap 3 fixedly disposed outside the tube sheet flanges at both ends, and an inner partition 4 fixedly connected between the first end cap 2 and the second end cap 3 and the corresponding tube sheet flange. The inner partition 4 divides the first end cap 2 and the second end cap 3 into a water chamber and an oil chamber, respectively. It also includes an oil inlet 5 and an oil outlet 6 respectively connected to the oil chamber; a water inlet 7 and a water outlet 8 respectively connected to the water chamber; and a refrigerant inlet 9 and a refrigerant outlet 10 respectively connected to the inner cavity of the heat exchanger body 1.

[0024] To adjust the heat exchange area of ​​water and oil, the inner partition 4 is detachably connected to the first end cap 2, the second end cap 3, and the corresponding tube sheet flange. By adjusting the position of the inner partition 4, the ratio of the water chamber to the oil chamber is adjusted, thereby adjusting the number of heat exchange tubes that allow oil and water to flow through. This makes it flexible and convenient to use. To improve sealing, a sealing structure is provided between the inner partition 4 and the first end cap 2, the second end cap 3, and the corresponding tube sheet flange. The specific structure of the sealing structure is not the design focus of this utility model. Any structure that can seal the gap between the two detached parts can be used, such as adding a sealing gasket.

[0025] In this embodiment, the oil inlet 5 is connected to the oil cavity of the first end cap 2, and the oil outlet 6 is connected to the oil cavity of the second end cap 3.

[0026] A partition plate is also fixedly provided between the first end cap 2 and its corresponding tube sheet flange. The partition plate divides the water cavity into an inlet cavity and an outlet cavity. The inlet 7 is connected to the inlet cavity, and the outlet 8 is connected to the outlet cavity.

[0027] Therefore, when exchanging heat with cooling oil, the oil enters from one end cap, passes through the heat exchange tube, and exits from the other end cap. Meanwhile, water enters from one inlet chamber, passes through the heat exchange tube, enters the water chamber of the second end cap 3, passes through the upper heat exchange tube, enters the outlet chamber, and exits from the first end cap 2. This method increases the circulation of cooling water in the heat exchange tube, resulting in higher heat exchange efficiency.

[0028] Preferably, the number of pipe holes corresponding to the tube sheet flange in the water chamber is greater than the number of pipe holes corresponding to the tube sheet flange in the oil chamber. This is because the high-temperature refrigerant gas condenses into a medium-temperature refrigerant liquid in the upper part of the heat exchanger cylinder after heat exchange with water, and flows into the lower part of the cylinder to exchange heat with the refrigeration oil in the heat exchange tubes, thereby reducing the temperature of the refrigeration oil in the system. The vaporized refrigerant gas then returns to the upper part to exchange heat with water and condense again. The unvaporized refrigerant liquid at the bottom normally enters the system for circulation and refrigeration. Therefore, the number of heat exchange tubes that pass through water is greater than the number that pass through refrigeration oil, thereby achieving cooling of both the refrigerant and the refrigeration oil, thus preventing the refrigeration oil temperature from becoming too high.

[0029] Example 2:

[0030] No illustration is provided. The difference from Embodiment 1 is that the water inlet 7 is connected to the water cavity of the first end cap 2, and the water outlet 8 is connected to the water cavity of the second end cap 3. Thus, the water circulation method is similar to that of refrigeration oil. After entering from the first end cap 2 on one side, it passes through the heat exchange tube and is discharged from the second end cap 3 on the other side. Compared with Embodiment 1, the structure is simpler, but the heat exchange efficiency is lower than that of Embodiment 1.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A shell-and-tube integrated oil cooling condenser, characterized by, The heat exchanger comprises a heat exchanger body, tube plate flanges fixedly arranged at both ends of the heat exchanger body, a plurality of heat exchange tubes arranged in the heat exchanger body and fixedly connected with the tube plate flanges at both ends respectively, a first head and a second head fixedly arranged outside the tube plate flanges at both ends, and an inner baffle fixedly connected between the first head and the corresponding tube plate flange and between the second head and the corresponding tube plate flange, the inner baffle separates the first head and the second head into a water cavity and an oil cavity, the heat exchanger further comprises an oil inlet and an oil outlet respectively connected with the oil cavity, a water inlet and a water outlet respectively connected with the water cavity, and a refrigerant inlet and a refrigerant outlet respectively connected with the inner cavity of the heat exchanger body.

2. A shell and tube integrated oil cooling condenser as claimed in claim 1 wherein: The inner baffle is detachably connected with the first head, the second head and the corresponding tube plate flange respectively.

3. A shell and tube integrated oil cooling condenser as claimed in claim 2 wherein: A sealing structure is arranged between the inner baffle and the first head, the second head and the corresponding tube plate flange respectively.

4. A shell and tube integrated oil cooling condenser as claimed in claim 1 wherein: The oil inlet is connected with the oil cavity of the first head, and the oil outlet is connected with the oil cavity of the second head.

5. A shell and tube integrated oil cooling condenser as claimed in claim 1 wherein: The water inlet is connected with the water cavity of the first head, and the water outlet is connected with the water cavity of the second head.

6. A shell and tube integrated oil cooling condenser as claimed in claim 1 wherein: A partition plate is further fixedly arranged between the first head and the corresponding tube plate flange, and the partition plate separates the water cavity into a water inlet cavity and a water outlet cavity, the water inlet is connected with the water inlet cavity, and the water outlet is connected with the water outlet cavity.

7. A shell and tube integrated oil cooling condenser as claimed in claim 1 wherein: The number of tube holes corresponding to the tube plate flange in the water cavity is greater than the number of tube holes corresponding to the tube plate flange in the oil cavity.

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