Controllably adjustable water-cooled evaporator

Abstract

The utility model relates to evaporator technical field especially for controllable regulation's water -cooled evaporator, including the seat body, the seat body's upside is provided with the main part, the main part includes the fixed cylinder shell on the seat body upside, the downside fixed coupling of cylinder shell is communicated and is provided with the inlet pipe, the upside fixed coupling of cylinder shell is communicated and is provided with the exhaust pipe, the left lower portion of cylinder shell both sides is all set up and has installed the mouth, the inside both sides of cylinder shell are all fixedly connected with the pipe plate, the transverse corresponding hole position of left and right pipe plate all are fixedly connected with the heat exchange pipe, the left side of cylinder shell is detachably connected with the water inlet head through the bolt, the right side of cylinder shell is detachably connected with the water outlet head through the bolt, the left part of cylinder shell is installed with the adjusting part, in the utility model, through setting adjusting part, baffle, heat exchange pipe and pipe plate etc. Structure makes controllable regulation's water -cooled evaporator can according to the liquid level of refrigerant real -time increase and decrease the quantity of effective heat exchange pipe.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to a controllable and adjustable water-cooled evaporator. Background Technology

[0002] A water-cooled evaporator is a heat exchange device that uses water or an aqueous solution as the cooling medium. Its working principle is as follows: the refrigerant flows in the shell side (shell) and absorbs heat from the chilled water in the tube side (heat exchange tubes) and then vaporizes. At the same time, the chilled water flows in the tube side and exchanges heat with the refrigerant in the shell side to be cooled down. Through this continuous heat exchange process, the heat exchange and cooling function of the chilled water circulation system is realized.

[0003] Since the cooling of chilled water depends on sufficient heat exchange with refrigerant between the shell side and the tube side, when the refrigerant level in the shell is too low and the liquid surface does not submerge the heat exchange tubes located above, the chilled water flowing through these tube sides cannot be cooled because it loses effective contact with the refrigerant, resulting in a decrease in overall cooling efficiency and an increase in outlet water temperature, which in turn affects the cooling performance of the system. Therefore, based on the above problems, a controllable and adjustable water-cooled evaporator is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a controllable and adjustable water-cooled evaporator to solve the problem that in traditional flooded evaporators, some heat exchange tubes are exposed above the liquid surface under low load, allowing chilled water to flow through, resulting in reduced heat exchange efficiency and unstable cooling performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A controllable and adjustable water-cooled evaporator includes a base, a main body mounted on the upper side of the base, and a cylindrical shell fixed to the upper side of the base. An inlet pipe is fixedly connected to the lower side of the cylindrical shell in a communicating manner, and an outlet pipe is fixedly connected to the upper side of the cylindrical shell in a communicating manner. Installation ports are provided on both the front and rear sides of the lower left portion of the cylindrical shell. Tube sheets are fixedly connected to the left and right sides of the interior of the cylindrical shell, and heat exchange tubes are fixedly connected to corresponding transverse holes in the left and right tube sheets. A water inlet seal is detachably connected to the left side of the cylindrical shell via bolts. A water outlet seal head is detachably connected to the right side of the cylindrical shell via bolts. An adjustment part is installed on the left side of the cylindrical shell. The adjustment part includes a pair of side shells fixed inside the installation port. Guide rods are slidably connected to the upper holes of the side shells. An arc plate located inside the side shell is fixedly connected to the lower end of the guide rod. A float is fixedly connected to the lower side of the arc plate. A linkage plate located on the upper side of the main body is fixedly connected to the upper end of the guide rod. A pair of linkage rods are fixedly connected to the lower left side of the linkage plate. A baffle is fixedly connected to the lower end of the linkage rods through the upper shell of the cylindrical shell.

[0006] Preferably, the left end face of the heat exchange tube is set on the same plane as the left end face of the left tube sheet, the baffle is set inside the shell, and the right end face of the baffle is in contact with the left end face of the left tube sheet.

[0007] Preferably, the inlet pipe and outlet pipe are located between the left and right tube sheets, the side shell is disposed between the left and right tube sheets, the side shell is connected to the cylindrical shell, and the upper inner wall of the side shell is higher than the heat exchange tube on the upper side.

[0008] Preferably, the baffle is located on the right side of the water inlet head and on the left side of each heat exchange tube. The distance between the upper end face of the baffle and the upper inner curved surface of the shell is the same as the height of the baffle.

[0009] Preferably, the float is a cylindrical bag filled with gas, the lower end face of the baffle is on the same plane as the lowest point of the float, and the inner side of the baffle has a plurality of equally spaced through holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the structure including an adjustment unit, baffles, heat exchange tubes, and tube sheets allows a pair of tube sheets to support the heat exchange tubes and also to separate the interior of the shell, ensuring that the refrigerant can only reside between the two tube sheets. The adjustment unit can detect the refrigerant level in real time and control the position of the baffles, so that the baffle height automatically adjusts with changes in the liquid level. This ensures that all unsealed heat exchange tubes are completely submerged in the refrigerant, guaranteeing that the chilled water can fully contact the refrigerant and complete heat exchange as it flows through these heat exchange tubes. This achieves a controllable and adjustable water-cooled evaporator that can increase or decrease the number of effective heat exchange tubes in real time according to the refrigerant level. This solves the problem of traditional flooded evaporators where some heat exchange tubes are exposed above the liquid surface under low load, allowing chilled water to flow through, resulting in reduced heat exchange efficiency and unstable cooling performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Another perspective structural diagram; Figure 3 This utility model Figure 2 A cross-sectional view of the disassembled structure; Figure 4 This utility model Figure 3 Another perspective structural diagram; Figure 5 This is a cross-sectional structural diagram of the main body of this utility model; Figure 6This is a partial cross-sectional view of the adjustment section of this utility model.

[0012] In the diagram: 1. Base; 2. Main body; 21. Shell; 22. Inlet pipe; 23. Pipeline; 24. Mounting port; 3. Tube sheet; 4. Heat exchange tube; 5. Adjustment section; 51. Side shell; 52. Guide rod; 53. Arc plate; 54. Float; 55. Linkage plate; 56. Linkage rod; 6. Baffle; 7. Inlet seal; 8. Outlet seal. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0016] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0017] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0018] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0019] Please see Figure 1-6 This utility model provides a technical solution: A controllable and adjustable water-cooled evaporator includes a base 1, a main body 2 mounted on the upper side of the base 1, and a cylindrical shell 21 fixed to the upper side of the base 1. An inlet pipe 22 is fixedly connected to the lower side of the cylindrical shell 21 in a communicating manner, and an outlet pipe 23 is fixedly connected to the upper side of the cylindrical shell 21 in a communicating manner. Installation ports 24 are provided on both the front and rear sides of the lower left portion of the cylindrical shell 21. Tube sheets 3 are fixedly connected to the left and right sides of the interior of the cylindrical shell 21. Heat exchange tubes 4 are fixedly connected to the corresponding transverse holes of the left and right tube sheets 3. A water inlet seal 7 is detachably connected to the left side of the cylindrical shell 21 via bolts. The right side of the cylindrical shell 21... A water outlet seal head 8 is detachably connected by bolts. An adjustment part 5 is installed on the left side of the cylinder shell 21. The adjustment part 5 includes a pair of side shells 51 fixed inside the mounting port 24. Guide rods 52 are slidably connected in the upper holes of the side shells 51. An arc plate 53 located inside the side shell 51 is fixedly connected to the lower end of the guide rods 52. A float 54 is fixedly connected to the lower side of the arc plate 53. A linkage plate 55 located on the upper side of the main body 2 is fixedly connected to the upper end of the guide rods 52. A pair of linkage rods 56 are fixedly connected to the lower left side of the linkage plate 55. A baffle 6 is fixedly connected to the lower end of the linkage rods 56 through the upper shell of the cylinder shell 21.

[0020] The left end face of heat exchange tube 4 is flush with the left end face of left tube sheet 3. Baffle 6 is located inside shell 21, and the right end face of baffle 6 is in contact with the left end face of left tube sheet 3. This arrangement allows baffle 6 to block the left end of heat exchange tube 4 when it is on the left side. Inlet pipe 22 and outlet pipe 23 are located between left and right tube sheets 3. This arrangement ensures that the refrigerant is only inside shell 21 and between left and right tube sheets 3. Side shell 51 is located between left and right tube sheets 3 and is connected to shell 21. This arrangement allows refrigerant to enter side shell 51. The upper inner wall of side shell 51 is higher than the upper heat exchange tube 4. This arrangement ensures that the highest refrigerant level that side shell 51 can hold is higher than that of heat exchange tube 4. Baffle 6 is located on the right side of inlet head 7 and on the left side of each heat exchange tube 4. The distance between the upper end face and the upper inner curved surface of the shell 21 is the same as the height of the baffle 6. This setting allows the baffle 6 to move upward. After the baffle 6 moves upward to its maximum extent, it will no longer block any heat exchange tubes 4. The float 54 is a cylindrical bag filled with gas. The lower end face of the baffle 6 and the lowest point of the float 54 are set on the same plane. According to common sense, if the refrigerant level is to float the float 54, the level will be slightly higher than the lowest point of the float 54. Then the refrigerant level will also be slightly higher than the lower end face of the baffle 6, which moves with the level. Therefore, the heat exchange tubes 4 that are unblocked by the baffle 6 will be completely submerged in the refrigerant. The inner side of the baffle 6 has several equally spaced through holes. This setting reduces the weight of the baffle 6 and makes it easier for the adjustment unit 5 to adjust its position in real time.

[0021] Workflow: The adjustment operation for whether the heat exchange tubes 4 of the water-cooled evaporator are open or closed is as follows: Note 1: The water-cooled evaporator is part of the chiller unit. The drain pipe 23 needs to be connected to the compressor, and the inlet pipe 22 needs to be connected to the electronic expansion valve. Liquid refrigerant is supplied to the shell 21 through the electronic expansion valve and the inlet pipe 22. Note 2: The inlet end cap 7 and the outlet end cap 8 are connected to the external chilled water circulation system. Chilled water enters the left side of the shell 21 from the inlet end cap 7, passes through each heat exchange tube 4 to reach the right side of the shell 21, and flows out from the outlet end cap 8. As the refrigerant level gradually rises inside the shell 21 and between the left and right tube sheets 3, the liquid level first submerges the lowest heat exchange tube 4. Simultaneously, the floats 54 located on both sides of the adjustment section 5 rise synchronously with the liquid level. When the floats 54 rise, they push multiple guide rods 52 vertically upward through the arc plate 53 connected to them. The guide rods 52 then drive the connecting plate 55 upward as a whole. As the connecting plate 55 rises, it simultaneously pulls the connecting rod 56 and the baffle 6 upwards, causing the baffle 6 to gradually release the seal on the left end of each heat exchange tube 4 from bottom to top. Since the rise of the baffle 6 is directly determined by the position of the float 54, and the position of the float 54 reflects the refrigerant level in real time, the height of the baffle 6 always adjusts automatically with the change of the liquid level. All the heat exchange tubes 4 that have been unsealed are completely immersed in the refrigerant, ensuring that the chilled water can fully contact the refrigerant and complete heat exchange when flowing through these heat exchange tubes 4, achieving stable and efficient cooling. Through this controllable self-adjusting mechanism, the water-cooled evaporator can increase or decrease the number of effective heat exchange tubes 4 in real time according to the refrigerant level, solving the problem that in traditional flooded evaporators, some heat exchange tubes 4 are exposed above the liquid surface at low loads, resulting in reduced heat exchange efficiency and unstable cooling performance.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A controllable and adjustable water-cooled evaporator, comprising a base (1), characterized in that: The upper side of the base (1) is equipped with a main body (2), which includes a cylindrical shell (21) fixed to the upper side of the base (1). The lower side of the cylindrical shell (21) is fixedly connected to an inlet pipe (22) that is in communication with the upper side of the cylindrical shell (21), and the upper side of the cylindrical shell (21) is fixedly connected to a drain pipe (23) that is in communication with the upper side of the cylindrical shell (21). The lower left and front and rear sides of the cylindrical shell (21) are provided with installation ports (24). The left and right sides of the interior of the cylindrical shell (21) are fixedly connected to tube sheets (3). The left and right tube sheets (3) are fixedly connected to heat exchange tubes (4) in the corresponding transverse holes. The left side of the cylindrical shell (21) is detachably connected to a water inlet seal (7) by bolts, and the right side of the cylindrical shell (21) is detachably connected to an outlet seal (7) by bolts. The water seal head (8) has an adjustment part (5) installed on the left side of the cylindrical shell (21). The adjustment part (5) includes a pair of side shells (51) fixed inside the mounting port (24). A guide rod (52) is slidably connected in the upper hole of the side shell (51). An arc plate (53) located inside the side shell (51) is fixedly connected to the lower end of the guide rod (52). A float (54) is fixedly connected to the lower side of the arc plate (53). A connecting plate (55) located on the upper side of the main body (2) is fixedly connected to the upper end of the guide rod (52). A pair of connecting rods (56) are fixedly connected to the lower left side of the connecting plate (55). A baffle (6) is fixedly connected to the lower end of the connecting rod (56) through the upper shell of the cylindrical shell (21).

2. The controllable and adjustable water-cooled evaporator according to claim 1, characterized in that: The left end face of the heat exchange tube (4) is set on the same plane as the left end face of the left tube plate (3). The baffle (6) is set on the inner side of the shell (21). The right end face of the baffle (6) is in contact with the left end face of the left tube plate (3).

3. The controllable and adjustable water-cooled evaporator according to claim 1, characterized in that: The inlet pipe (22) and outlet pipe (23) are located between the left and right tube sheets (3), the side shell (51) is located between the left and right tube sheets (3), the side shell (51) is connected to the shell (21), and the upper inner wall of the side shell (51) is higher than the heat exchange tube (4) on the upper side.

4. The controllable and adjustable water-cooled evaporator according to claim 1, characterized in that: The baffle (6) is located on the right side of the water inlet head (7) and on the left side of each heat exchange tube (4). The distance between the upper end face of the baffle (6) and the upper inner curved surface of the shell (21) is the same as the height of the baffle (6).

5. The controllable and adjustable water-cooled evaporator according to claim 1, characterized in that: The float (54) is a cylindrical bag filled with gas. The lower end face of the baffle (6) is on the same plane as the lowest point of the float (54). The inner side of the baffle (6) has several channels that are equidistantly arranged.

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