Horizontal heat exchanger and partitioned water chamber structure

Abstract

The utility model discloses a horizontal heat exchanger and a partitioned water chamber structure, which comprise a left water chamber (1) and a right water chamber (2) which are respectively arranged on two sides of a horizontal cylinder and are formed by sealing side tube plates (3, 4) by end sealing covers; the partition baffles (151 and 251) divide the left water chamber (1) and the right water chamber (2) into a heat recovery cavity and a cooling water cavity respectively; in each side water chamber, the heat recovery cavity and the cooling water cavity are completely separated and form independent spaces respectively. The water chamber is simple in structure, equipment manufacturing and mounting cost is reduced, and equipment operation reliability and stability are improved.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a novel heat exchanger with heat recovery function and a partitioned water chamber structure for the heat exchanger. Background Technology

[0002] With increasing energy-saving requirements, the application of heat recovery functions in air conditioning is becoming more and more widespread. Existing heat exchangers with heat recovery functions have complex heat recovery containers and water chamber structures, high material costs, and high manufacturing and installation costs.

[0003] Meanwhile, in existing heat exchangers, it is not easy to detect water leakage between the heat recovery side and the cooling water side in a timely manner. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a horizontal heat exchanger and a partitioned water chamber structure. The water chamber structure is simple, which reduces the equipment manufacturing and installation costs and increases the reliability and stability of equipment operation.

[0005] Furthermore, this application can monitor whether there is cross-contamination between the heat recovery side and the cooling water side, solving the problem that cross-contamination is not easy to detect in a timely manner.

[0006] To address the aforementioned technical problems, this application provides the following technical solutions:

[0007] A horizontal heat exchanger, characterized in that it comprises:

[0008] The left water chamber (1) and the right water chamber (2) are located on both sides of the horizontal cylinder and are formed by sealing the tube sheets (3, 4) on each side with water chamber heads;

[0009] The partition baffles (151, 251) are perpendicular to the tube sheets on both sides and divide each side water chamber into at least two independent chambers; in each side water chamber, the two independent chambers are respectively set as a heat recovery chamber and a cooling water chamber;

[0010] The partition baffles (151, 251) are respectively housed in the chambers of the water chambers on each side and fixed between the water chamber heads and the tube sheet on each side.

[0011] In the above technical solution, the partition baffles (151, 251) are fixedly connected to the corresponding side tube sheets and accommodated in the chambers of each side water chamber.

[0012] In the above technical solution, the partition baffle (151, 251) is provided with a baffle groove (155), which is arranged along the plane of the baffle to guide the water flow to the connection with the tube sheet.

[0013] In the above technical solution, the partition baffle structure in the left water chamber and the right water chamber is the same. The shape is a straight-edge arc-shaped combined plate that is consistent with the outline of the water chamber head. A baffle groove (155) is set on the straight-edge section, and several uniformly distributed stepped holes are set perpendicular to the baffle groove (155). Each stepped hole is set such that the diameter of the arc end facing the water chamber head is larger than the diameter of the straight-edge section end facing the tube sheet end of the cylinder.

[0014] In the above technical solution, the tube sheet and the partition baffle have connection holes for fixed connection by connectors, and the connection holes are set in the baffle groove of the partition baffle.

[0015] The connection holes can be bolt holes, which are used to fix the tube sheet to divert cross-flow water, thereby monitoring in real time whether there is cross-flow between the heat recovery side and the cooling water side.

[0016] In the above technical solution, the shell side of the heat exchanger is fixedly connected by the left tube sheet (3), the right tube sheet (4), and the shell (10) to form a closed chamber. This fixed connection is preferably welded.

[0017] In the above technical solution, the shell side adopts a single-pass design, and the compressor exhaust enters the gas distributor (7) inside the shell (10) through the air inlet pipe (5). The gas distributor (7) is set to distribute evenly along the axis of the shell (10). The gas distributor (7) is located above the heat exchange tube bundle (8).

[0018] In the above technical solution, the left water chamber (1) is a heat recovery measuring chamber. The left water chamber (1) is connected to the upstream heat recovery water inlet pipe (11). After the heat recovery water inlet pipe (11) is connected to the corresponding heat exchange tube in the heat exchange tube bundle (8) in the cylinder, it is connected to the downstream heat recovery water outlet pipe (12) arranged on the same side.

[0019] In the above technical solution, the left water chamber (1) is also provided with a cooling water side. The coolant input end is connected to the cooling water inlet pipe (13) of the left water chamber (1). After the cooling water inlet pipe (13) is connected to the corresponding high-efficiency heat exchange tube in the heat exchange tube bundle (8) in the cylinder, it is connected to the cooling water outlet pipe (14) arranged on the same side.

[0020] In the above technical solution, the tube heat recovery side adopts a dual-flow process. The refrigerant flows in from the heat recovery inlet pipe (11) of the left water chamber (1), passes through the corresponding high-efficiency heat exchange tube in the heat exchange tube bundle (8), and flows out from the heat recovery outlet pipe (12).

[0021] In the above technical solution, the tube cooling water side adopts a dual-flow process. The refrigerant flows in from the cooling water inlet pipe (13) of the left water chamber (1), passes through the corresponding high-efficiency heat exchange tube in the heat exchange tube bundle (8), and flows out from the cooling water outlet pipe (14).

[0022] In the above technical solution, the gas distributor (7) is a trapezoidal perforated plate with multiple through holes evenly arranged along the axis of the cylinder (10) on at least the bottom horizontal surface of the trapezoidal perforated plate. This ensures uniform distribution of the intake airflow, rapid contact with the heat exchange tube bundle, and uniform heat exchange.

[0023] In the above technical solution, the heat exchange tube bundle (8) is arranged in sections along the axial direction of the cylinder to guide the liquid film condensed on the heat exchange tubes to the support plates, thereby avoiding the accumulation of liquid film on the surface of the heat exchange tubes and improving the heat exchange efficiency. A gap is left between the support plates and the cylinder to allow for sufficient heat exchange.

[0024] In the above technical solution, partition plates are respectively installed in the heat recovery chamber and the cooling water chamber to separate the upstream and downstream pipes.

[0025] A heat recovery partition plate (153) is installed in the left water chamber heat recovery cavity to separate the heat recovery inlet pipe (11) and heat recovery outlet pipe (12) arranged in the heat recovery cavity.

[0026] For example, a cooling water side partition (154) is provided in the left water chamber cooling water cavity to separate the cooling water inlet pipe (13) and cooling water outlet pipe (14) arranged in the cooling water cavity.

[0027] Therefore, the cooling water side of the heat recovery chamber adopts a dual-flow process. The refrigerant flows in from the cooling water inlet pipe (13) of the left water chamber (1), passes through the corresponding high-efficiency heat exchange tube in the heat exchange tube bundle (8), and flows out from the cooling water outlet pipe (14).

[0028] In the above technical solution, a subcooling tube bundle (9) is set below the heat exchange tube bundle (8) to collect the liquefied refrigerant. The subcooling tube bundle (9) is finally connected to the liquid outlet pipe (6) at the bottom of the cylinder.

[0029] In the above technical solution, the water chamber end cap is an elliptical end cap. A standard elliptical end cap can reduce material costs and overall machine weight. The end cap cover can be any other shape of standard end cap with an internal cavity.

[0030] In the above technical solution, the arrangement angle of the water chamber partition baffle is not limited.

[0031] In the above technical solution, the heat recovery side and the cooling water side can be located on the same side or on opposite sides.

[0032] This application also provides a partitioned water chamber structure, characterized in that the two chambers are placed in pairs on both sides of the horizontal heat exchanger shell and formed by the tube sheets (3, 4) on each side of the shell sealed by the end caps; partitioned baffles (151, 251) divide the water chamber into a heat recovery chamber and a cooling water chamber, and the heat recovery chamber and the cooling water chamber are completely separated and form independent spaces respectively.

[0033] In the above technical solution, the angle of the baffle plate for dividing the water chamber is not limited. The goal is to achieve the desired division into independent spaces.

[0034] In the above technical solution, the partition baffles (151, 251) are fixedly connected to the corresponding side tube sheets and accommodated in the chambers of each side water chamber.

[0035] In the above technical solution, the partition baffle (151, 251) is provided with a baffle groove (155), which is arranged along the plane of the baffle to divert the water flow.

[0036] In the above technical solution, the tube sheet and the partition baffle have connection holes for fixed connection by connectors, and the connection holes are set in the baffle groove of the partition baffle.

[0037] The connection holes can be bolt holes, which are used to fix the tube sheet to divert cross-flow water, thereby monitoring in real time whether there is cross-flow between the heat recovery side and the cooling water side.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The left and right water chambers are separated into a heat recovery chamber and a cooling water chamber by partition baffles. The two chambers are completely independent, realizing the complete separation of the refrigerant on the heat recovery side and the cooling water side, avoiding cross-contamination, and improving the reliability and stability of the equipment.

[0040] By connecting the partitioned baffles to the corresponding side tube plates and tightening them with bolts or similar connectors, the number of gaskets and bolts can be reduced, resulting in a simple structure and lower material and manufacturing costs.

[0041] The partition baffle is equipped with a baffle groove. When water flows between the heat recovery chamber and the cooling water chamber, the refrigerant can flow out through the baffle groove and the bolt holes on the partition baffle to monitor in real time whether water flows between the heat recovery side and the cooling water side.

[0042] It can be widely used in the chemical / refrigeration industry and heat transfer field. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a front view of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0045] Figure 2 This is a perspective view of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0046] Figure 3 This is a front perspective view of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0047] Figure 4 This is a side perspective view of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0048] Figure 5 This is a side view of the internal structure of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0049] Figure 6 This is a side-view perspective view of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0050] Figure 7 This is a front structural view of the partition baffle of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0051] Figure 8 This is a three-dimensional structural diagram of the partitioned baffle of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0052] Figure 9 This is a structural development diagram of the partitioned baffles along the AB direction of the horizontal heat exchanger and water chamber structure according to an embodiment of this application.

[0053] Figure 10 This is a perspective view of the combination of the partition baffle and the water chamber in the horizontal heat exchanger and water chamber structure of the embodiment of this application.

[0054] Figure 11 This is a perspective view of the combination of the partition baffle and the water chamber in the horizontal heat exchanger and water chamber structure of the embodiment of this application. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0057] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0058] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and 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 this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0059] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0060] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0063] Example 1

[0064] In Example 1, as Figure 1-11 As shown, a left water chamber 1 and a right water chamber 2 are provided on both sides of the horizontal heat exchanger shell 10. Both the left water chamber 1 and the right water chamber 2 are formed by sealing the tube sheets (3, 4) on each side with end caps. The partition baffles (151, 251) divide the left water chamber (1) and the right water chamber (2) into a heat recovery chamber and a cooling water chamber, respectively. In each side water chamber, the heat recovery chamber and the cooling water chamber are completely separated and form independent spaces. A guide plate 101 is provided along the axial direction of the shell. From the cross-sectional direction of the shell, the guide plates 101 are spaced and distributed in the heat exchange tube bundle 8.

[0065] The refrigerant side of the container (shell side, such as...) Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 10 , Figure 11 The shell-side closed chamber is formed by welding the left tube sheet 3, right tube sheet 4, and shell 10. The shell side adopts a single-pass design; compressor exhaust enters the gas distributor 7 through the inlet pipe 5, and is then evenly distributed into the shell along the shell's axial direction. Figure 5 The refrigerant gas in the cylinder exchanges heat with the condenser in the high-efficiency heat exchange tube bundle 8 and condenses into liquid. The liquid refrigerant passes through the subcooling tube bundle 9 in the subcooling zone and exchanges heat with the heat exchange tube to achieve a certain degree of subcooling, and then flows out from the bottom liquid outlet pipe 6.

[0066] like Figure 1 and Figure 2 , Figure 4 and Figure 6 The heat recovery side of the tube side adopts a dual-flow design, with a heat recovery inlet pipe 11 and a heat recovery outlet pipe 12 arranged in the left water chamber heat recovery cavity. A cooling water inlet pipe 13 and a cooling water outlet pipe 14 are arranged in the cooling water cavity.

[0067] coolant (see) Figure 6 The heat recovery water flows in from the heat recovery inlet pipe 11 of the left water chamber 1, sequentially through chamber R1, the lower left high-efficiency heat exchange tube in the heat exchange tube bundle 8, chamber A2 of the right water chamber 2, the upper left high-efficiency heat exchange tube in the heat exchange tube bundle 8, and chamber R2, and flows out from the heat recovery outlet pipe 12 of the left water chamber 1; the refrigerant (heat recovery water) exchanges heat with the refrigerant through the heat exchange tubes in the heat exchange tube bundle 8 to achieve refrigerant condensation and heat recovery effect of the refrigerant on the heat recovery side. The tube-side cooling water adopts a dual-flow design, with the refrigerant (see...) Figure 6 The cooling water flows in from the cooling water inlet pipe 13 of the left water chamber 1, and flows sequentially through chamber C1, the lower right high-efficiency heat exchange tube in the heat exchange tube bundle 8, chamber A1 of the right water chamber 2, the upper right high-efficiency heat exchange tube in the heat exchange tube bundle 8, and chamber C2, and flows out from the cooling water outlet pipe 14 of the left water chamber 1; the refrigerant (cooling water) exchanges heat with the refrigerant through the heat exchange tubes in the heat exchange tube bundle 8 to achieve the condensation of the refrigerant and the heating effect of the refrigerant.

[0068] like Figure 7-11 The baffle structures in the left and right water chambers are identical, consisting of a straight-edged arc-shaped composite plate that matches the contour of the water chamber head. A baffle groove 155 is provided on the straight-edged section. Figure 9 As shown, several evenly distributed stepped holes are arranged perpendicularly to the baffle groove 155. The diameter of each stepped hole is set such that the arc end (direction B) facing the water chamber head has a larger diameter than the straight edge section end (direction A) facing the tube sheet end. The stepped holes can be used for bolt fixing.

[0069] In the left water chamber, the left water chamber partition baffle 151 divides the left water chamber 1 into a heat recovery chamber R and a cooling water chamber C, with the two chambers being completely independent; in the right water chamber, the right water chamber partition baffle 251 divides the right water chamber 2 into a heat recovery chamber A2 and a cooling water chamber A2, with the two chambers being completely independent, so as to completely separate the refrigerant on the heat recovery side and the cooling water side, and realize refrigeration and heat recovery in the same container.

[0070] Bolt holes are made in the partition baffle 151, the left water chamber end cap 152 and the left tube plate 3, and the right water chamber partition baffle 251, the right water chamber end cap 252 and the right tube plate 4. The partition baffle is connected to the tube plate by bolts and is tightened by bolts. While ensuring the sealing effect, the number of gaskets and bolts in the original structure can be reduced, thereby reducing material and manufacturing costs.

[0071] The baffle grooves 155 provided on the left water chamber partition baffle 151 and the right water chamber partition baffle 251 allow the refrigerant to flow out through the baffle grooves 155 and the stepped holes or bolt holes on the partition baffles when water is mixed between the heat recovery chamber R and the cooling water chamber C or between chamber A1 and chamber A2 (with refrigerant). This allows for real-time monitoring of whether water is mixed between the heat recovery side and the cooling water side, ensuring reliable operation.

[0072] The gas distributor 7 is a trapezoidal perforated plate, which ensures uniform distribution of the incoming airflow, rapid contact with the tube bundle, and uniform heat exchange. At the same time, it can prevent high-speed airflow from impacting the heat exchange tubes, and the airflow pushes the condensate on the partition baffles in the heat exchange tube bundle 8 to flow down in time, thereby improving heat exchange efficiency.

[0073] The heat exchange tube bundle 8 is equipped with partition baffles to prevent liquid film accumulation on the surface of the heat exchange tubes and improve heat exchange efficiency.

[0074] Subcooled tube bundle 9 employs an independent subcooling zone to ensure subcooling and improve performance.

[0075] Example 2

[0076] Based on Example 1, the arrangement angle of the water chamber partition baffles is not limited. The goal is simply to achieve partitioning and create independent spaces. Each space can serve as a cooling water side or a heat recovery area.

[0077] Of course, other standard head shapes can be used for the preferred head shape, as long as they contain separable cavities. This improves compatibility with various standard heads.

[0078] Example 3

[0079] Based on Example 1, the heat recovery side and the cooling water side can be located on the same side or opposite sides. As long as there is a cavity that can be used to separate the heat recovery chamber, it is acceptable. For example, the directions of the heat recovery inlet pipe 11 and heat recovery outlet pipe 12 arranged in the heat recovery chamber of the left water chamber can be adjusted to be set on the left and right sides of the cylinder respectively, or the directions of the cooling water inlet pipe 13 and cooling water outlet pipe 14 can be changed to be set on the two sides respectively.

[0080] This allows for adaptation to different installation needs and increases the flexibility of the equipment in terms of available space.

[0081] Example 4

[0082] The number of processes can be single-process or multiple-process. A dual-process approach is preferred. Figure 4 and Figure 6 An example is also given where the heat recovery measurement and cooling water measurement are each equipped with a partition. For example, a heat recovery partition 153 is set in the heat recovery chamber of the left water chamber to separate the heat recovery inlet pipe 11 and the heat recovery outlet pipe 12 arranged in the heat recovery chamber of the water chamber.

[0083] For example, a cooling water side partition 154 is provided in the left water chamber cooling water cavity to separate the cooling water inlet pipe 13 and cooling water outlet pipe 14 arranged in the cooling water cavity.

[0084] This can further prevent water from mixing.

[0085] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A horizontal heat exchanger, characterized in that, include: The left water chamber (1) and the right water chamber (2) are located on both sides of the horizontal cylinder and are formed by sealing the tube sheets (3, 4) on each side with water chamber heads; The partition baffles (151, 251) are perpendicular to the tube sheets on both sides and divide each side water chamber into at least two independent chambers; in each side water chamber, the two independent chambers are respectively set as a heat recovery chamber and a cooling water chamber; The partition baffles (151, 251) are respectively housed in the chambers of the water chambers on each side and fixed between the water chamber heads and the tube sheet on each side.

2. The horizontal heat exchanger according to claim 1, characterized in that, The partition baffles (151, 251) are provided with baffle grooves (155), which are arranged along the plane of the baffle to guide the water flow to the connection with the tube sheet of the cylinder.

3. The horizontal heat exchanger according to claim 1, characterized in that, The baffle structures in the left and right water chambers are the same, and the shape is a straight-edge arc-shaped combined plate that is consistent with the outline of the water chamber head. A baffle groove (155) is set on the straight-edge section, and several uniformly distributed stepped holes are set perpendicular to the baffle groove (155). The stepped holes are set such that the diameter of the arc end facing the water chamber head is larger than the diameter of the straight-edge section end facing the tube sheet end of the cylinder.

4. The horizontal heat exchanger according to claim 1, characterized in that, A gas distributor (7) is installed inside the cylinder (10). The compressor exhaust end is connected to the gas distributor (7) through the air inlet pipe (5). The gas distributor (7) is set to distribute evenly along the axis of the cylinder (10).

5. The horizontal heat exchanger according to claim 1, characterized in that, The left water chamber (1) is a heat recovery measuring chamber. The left water chamber (1) is connected to the upstream heat recovery inlet pipe (11). After the heat recovery inlet pipe (11) is connected to the corresponding heat exchange tube in the heat exchange tube bundle (8) in the cylinder, it is connected to the downstream heat recovery outlet pipe (12) arranged on the same side.

6. The horizontal heat exchanger according to claim 1, characterized in that, The left water chamber (1) is also provided with a cooling water side. The refrigerant input end is connected to the cooling water inlet pipe (13) of the left water chamber (1). After the cooling water inlet pipe (13) is connected to the corresponding high-efficiency heat exchange tube in the heat exchange tube bundle (8) in the cylinder, it is connected to the cooling water outlet pipe (14) arranged on the same side.

7. The horizontal heat exchanger according to claim 1, characterized in that, Divider plates are installed in the heat recovery chamber and cooling water chamber to separate the upstream and downstream pipes.

8. The horizontal heat exchanger according to claim 1, characterized in that, In the water chamber, the angle of the partition baffles is not limited.

9. The horizontal heat exchanger according to claim 1, characterized in that, The heat recovery side and the cooling water side are located on the same side or opposite sides of the cylinder.

10. A partitioned water chamber structure, characterized in that... The tube sheets (3, 4) on each side of the horizontal heat exchanger shell are placed in pairs and formed by the water chamber head sealing each side of the shell. The partition baffles (151, 251) divide the water chamber into a heat recovery chamber and a cooling water chamber, which are completely separated and form independent spaces.

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