Supercooling box suitable for condenser and horizontal condenser
By adopting a subcooled box structure and a dual-pass tube design in the horizontal condenser, the problem of refrigerant accumulation was solved, liquid level stability and heat exchange efficiency were improved, and refrigerant consumption and material costs were reduced.
Patent Information
- Application Number
- CN202520143325.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing horizontal condensers suffer from a problem where a large amount of refrigerant accumulates on the inlet side, leading to insufficient refrigerant on the outlet side, which increases the amount of refrigerant charged and material costs.
The subcooled box structure, including a cover plate, an arc plate, an end plate, and a baffle plate, forms a closed chamber and a serpentine flow channel. Combined with a dual-pass tube design, it ensures stable liquid seal in the subcooled zone without increasing the refrigerant charge.
This achieves stable liquid level in the subcooled zone, prevents refrigerant accumulation, ensures subcooling and heat exchange efficiency, and reduces refrigerant usage and material costs.
Smart Images
Figure CN223814819U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the chemical industry / refrigeration industry and heat transfer technology field, in particular to a green and environment-friendly supercooling box and horizontal condenser capable of saving refrigerant charging quantity. BACKGROUND
[0002] The existing horizontal condenser adopts an independent supercooling area, refrigerant flows along the supercooling partition plate below the heat exchange tube group to the tube plate at both ends of the cylinder body in the length direction of the cylinder body, enters the supercooling plate group from both ends of the supercooling area, and finally flows out from the liquid outlet. The supercooling area of the condenser has the following defects:
[0003] 1. When a single process is used, the heat exchange capacity of the water inlet side is large, and a large amount of refrigerant is gathered on the water inlet side, while the refrigerant on the water outlet side is insufficient; in order to ensure the supercooling degree, a large amount of gas-phase refrigerant enters the supercooling area, and the refrigerant charging quantity needs to be increased, which increases the material cost.
[0004] 2. In order to ensure the liquid seal and stable liquid level at both ends of the supercooling area of the conventional condenser, about 25mm of refrigerant needs to be accumulated on the supercooling partition plate, which increases the refrigerant charging quantity and increases the manufacturing cost. CONTENT OF THE INVENTION
[0005] The application aims to provide a supercooling box and horizontal condenser suitable for the condenser, so as to improve the defects that the existing condenser is easy to accumulate refrigerant and a large amount of refrigerant is gathered on the water inlet side.
[0006] The embodiment of the application is implemented in the following manner:
[0007] A supercooling box suitable for a condenser comprises the following features:
[0008] A cover plate is horizontally and transversely arranged on the top;
[0009] An arc-shaped plate is arranged parallel to the cover plate, the bottom of the arc-shaped plate is concave to form an arc surface, the front and rear sides of the arc surface extend upward to be buckled with the upper end cover plate, a liquid outlet is arranged in the middle of the bottom, and notches are arranged at both ends to form liquid inlets;
[0010] End plates are arranged at both ends transversely and between the cover plate and the arc-shaped plate to form a closed chamber together with the cover plate and the arc-shaped plate;
[0011] Baffle plates are arranged in the closed chamber in a staggered and spaced manner, and the horizontal front side or the horizontal rear side of each baffle plate is arranged at a set distance from the arc-shaped plate of the closed chamber, so that the liquid flow forms a serpentine or zigzag flow channel along each baffle plate in the closed chamber.
[0012] In the above technical solution, a plurality of through holes are arranged on the end plate, a plurality of supercooling heat exchange tubes are arranged in the closed chamber through the through holes, and the heat exchange tubes pass through the baffle plates.
[0013] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0014] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0015] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0016] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0017] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0018] In the technical scheme, the bottom of the arc-shaped plate is circularly concave to form a circular arc surface.
[0019] A horizontal condenser characterized in that the supercooling box suitable for the condenser is used, wherein:
[0020] The condensing heat exchange pipe group and the gas distributor are sequentially arranged above the supercooling box in the cylinder.
[0021] The transverse ends of the supercooling box are spaced apart from the tube plates at the axial ends of the cylinder.
[0022] The arc-shaped plate at the bottom of the supercooling box is consistent with the arc of the cylinder and is spaced apart.
[0023] The liquid outlet at the bottom of the supercooling box is arranged downward through the cylinder.
[0024] In the technical scheme, the axial ends of the cylinder are respectively provided with left and right water chambers through the tube plates.
[0025] In the technical scheme, the right water chamber is divided into two chambers, i.e., a first chamber and a third chamber, and the left water chamber includes a second chamber; the tube pass is of a double-flow process, and the refrigerant passage is sequentially connected from the water inlet to the first chamber, the supercooling heat exchange pipe, the condensing heat exchange pipe, the second chamber, the upper condensing heat exchange pipe, the third chamber, and then to the water outlet pipe.
[0026] In the technical scheme, the gas distributor is arranged below the gas inlet pipe at the top of the cylinder and has a plurality of air holes for dispersing gas along the axial direction of the cylinder.
[0027] In the technical scheme, the condensing heat exchange pipe is supported by the condensing plate group and arranged along the axial direction of the cylinder.
[0028] In the technical scheme, the gas distributor is obliquely arranged to make the air flow center pass through the cylinder in an oblique direction along the diameter direction.
[0029] The beneficial effects of the present application are as follows:
[0030] The undercooling box structure with liquid inlet at both ends and bottom ensures liquid seal at both ends of the undercooling zone and stable liquid level, and does not need to accumulate refrigerant on the top plate of the undercooling box, thereby ensuring the undercooling degree without increasing the refrigerant charge.
[0031] The pipe passes through the undercooling zone with liquid inlet and outlet at both ends and bottom, avoids the phenomenon that a large amount of refrigerant is gathered at the water inlet side and the water outlet side is insufficient, avoids a large amount of gas-phase refrigerant from entering the undercooling zone, and ensures the heat exchange effect without increasing the refrigerant charge. BRIEF DESCRIPTION OF DRAWINGS
[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0033] Figure 1 It is a forward structure schematic diagram of the horizontal condenser of the embodiments of the present application.
[0034] Figure 2 It is a side structure schematic diagram of the horizontal condenser of the embodiments of the present application.
[0035] Figure 3 It is an explosion view of the undercooling box structure of the embodiments of the present application.
[0036] Figure 4 It is a cover plate structure schematic diagram of the undercooling box of the embodiments of the present application.
[0037] Figure 5 It is an end plate structure schematic diagram of the undercooling box of the embodiments of the present application.
[0038] Figure 6 It is an arc-shaped plate structure schematic diagram of the undercooling box of the embodiments of the present application.
[0039] Figure 7 It is a baffle plate structure schematic diagram of the undercooling box of the embodiments of the present application.
[0040] Figure 8 It is a single-flow structure schematic diagram of the embodiments of the present application. DETAILED DESCRIPTION
[0041] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0042] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.
[0043] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0045] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only 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 inclined.
[0046] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0047] In the present application, unless specifically defined and limited otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0048] The features and performances of the present application are further described in detail below in combination with embodiments.
[0049] Embodiment 1
[0050] The horizontal condenser implemented according to the present application is shown in Figure 1 , with the cylinder 3 horizontally placed, the left water chamber 1 is arranged on the left side through the left tube plate 6, and the right water chamber 7 is arranged on the right side through the right tube plate 6. The right water chamber 7 is divided into two chambers, of which the first chamber Q1 is connected to the water inlet pipe 13, and the third chamber Q3 is connected to the water outlet pipe 12. The left water chamber 1 contains one second chamber Q2.
[0051] The gas distributor 5 is arranged below the gas inlet pipe 4 at the top of the cylinder 3, and a plurality of air holes are arranged on the gas distributor 5, which can disperse the gas into the cylinder along the axial direction of the cylinder 3. Below the gas distributor 5 is a heat exchange tube group composed of high-efficiency condensing heat exchange tubes 11, as shown in Figure 2 The heat exchange tubes 11 are supported by a plurality of condensing plate groups 10 and arranged along the axial direction of the cylinder 3.
[0052] As shown in Figure 2 , the gas distributor 5 is arranged obliquely, so that the distributed gas flow can pass through the heat exchange tube group along the maximum length in the diameter direction of the cylinder, prolonging the heat exchange path and thus enhancing the heat exchange effect.
[0053] The subcooling box 8 is arranged below the heat exchange tube group, and the liquid outlet pipe 9 is arranged to pass through the cylinder 3 at the bottom of the subcooling box 8. Preferably, the upper surface of the subcooling box is arranged horizontally, and the lower surface is arc-shaped in accordance with the shape of the cylinder 3. As shown in Figure 2 , the liquid outlet pipe 9 is arranged as much as possible in accordance with or parallel to the gas flow distribution path of the gas distributor 5, that is, offset at a certain angle relative to the vertical line of the cylinder 3.
[0054] As shown in Figures 3-7As shown, the supercooling box 8 is closed by the top horizontal cover plate 81, the bottom arc-shaped plate 82 consistent with the arc of the cylinder 3, and the supercooling box end plate 84 at both ends along the axial direction of the cylinder. In the closed chamber, a plurality of baffles 83 are arranged in a spaced manner, which are consistent in shape with the arc-shaped plate 82 but only retain about half of the plate surface in the horizontal direction (may be between two-thirds and one-half of the plate surface), and a large number of small holes are arranged on the baffles 83; as shown in Figure 7 , the adjacent baffles 83 are arranged in a staggered manner to form a supercooling plate group, so that one end of each baffle 83 is fixed between the horizontal cover plate 81 and the arc-shaped plate 82, and the other end is left a distance from the arc-shaped plate 82, thereby forming a refrigerant baffling channel that flows in a serpentine or zigzag shape along the axial direction of the cylinder (as shown by the green lines in Figure 3 ).
[0055] The axial ends of the supercooling box 8 are kept a certain distance from the tube plate. The arc-shaped plate 82 of the supercooling box 8 is provided with a notch at each of the axial ends to form a liquid inlet 821, and the bottom of the arc-shaped plate 82 is kept a certain distance from the cylinder 3 to form a refrigerant flow channel (as shown in Figure 1 and 2 ), so that the liquid flow after heat exchange is collected in the refrigerant flow channel and then reaches the supercooling box 8 through the liquid inlets 821 at both ends, reaches the middle of the supercooling box 8 along the refrigerant baffling channel, and is discharged from the middle section of the cylinder through the liquid outlet pipe 9.
[0056] As shown in Figure 3 and 5 , the supercooling box end plate 84 is provided with through holes in the plate body for arranging the supercooling heat exchange pipes 85 along the axial direction of the cylinder 3. The supercooling box end plate 84 is provided with notches or feet for welding with the cylinder 3. The through holes of the supercooling box end plate 84 are expanded to connect with the supercooling heat exchange pipes 85.
[0057] The side edges of the supercooling box cover plate 81 are provided with downwardly bent edges and partially outwardly extending feet for connecting with the bottom arc-shaped plate 82.
[0058] The container refrigerant side (shell side, see Figure 1 ) forms a shell side closed chamber by welding the left tube plate 2, the right tube plate 6, and the cylinder 3. The shell side adopts a single flow process. The compressor exhaust gas enters the gas distributor 5 through the inlet pipe 4, uniformly enters along the axial direction of the cylinder through the gas distributor 5, and the refrigerant gas exchanges heat with the pipe-in load coolant through the high-efficiency heat exchange pipe 11 in the condensing plate 10 to be condensed into liquid refrigerant. The liquid refrigerant passes through the gap between the arc-shaped plate 82 of the supercooling box and the cylinder 3, collects at the bottom of the supercooling box 8, and flows transversely along the length direction of the cylinder to the two ends, enters the supercooling box 8 upward through the notch-shaped liquid inlets 821 at both ends of the arc-shaped plate 82 (as shown in Figure 6 ), exchanges heat with the load coolant in the supercooling heat exchange pipe 85 through the baffling of the baffle 83, reaches a certain supercooling degree, and flows out from the middle section of the cylinder through the liquid outlet pipe 9 at the bottom of the supercooling box.
[0059] The pipe passage adopts double flow process, and the cooling medium (see Figure 1 ) flows from the lower inlet pipe 13 of the right water chamber 7, sequentially passes through the first chamber Q1, the high-efficiency supercooling heat exchange pipe 85 installed in the supercooling box 8, the high-efficiency condensing heat exchange pipe 11 installed in the condensing plate 10, the second chamber Q2 of the left water chamber 1, the upper high-efficiency condensing heat exchange pipe 11 installed in the condensing plate group, the third chamber Q3, and then flows out from the upper outlet pipe of the left water chamber 1; the cooling medium exchanges heat with the refrigerant through the supercooling heat exchange pipe 85 and the condensing heat exchange pipe 11, so as to realize the condensation of the refrigerant.
[0060] Embodiment 2
[0061] On the basis of Embodiment 1, the condensing plate 10 forms a condensing plate group, and a partition baffle is arranged in the condensing plate group to form a partition condensing structure, so as to increase the path of heat exchange condensation.
[0062] Embodiment 3
[0063] On the basis of Embodiment 1, the left and right water chamber heads do not use partition heads, but use other shape standard heads, so as to realize the double flow process in the pipe passage.
[0064] Embodiment 4
[0065] On the basis of Embodiment 1, the flow process number can be single flow process. When the flow process is single flow process, the heads of the left water chamber 1 and the right water chamber 7 at both ends of the shell 3 do not use partition heads, and the inlet and outlet directions of the cooling medium are not distinguished. The structure is shown in Figure 8 .
[0066] The above-described embodiments are part of the embodiments of the present application, rather than all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
Claims
1. A subcooling box suitable for a condenser, characterized in that, include: Cover plate, horizontally positioned at the top; The arc-shaped plate is set parallel to the cover plate. The bottom is arc-shaped and convex to form an arc surface. The front and back sides of the arc extend upward to fit with the upper cover plate. The liquid outlet is set in the middle of the bottom, and the notches at both ends form liquid inlets. The end plates are symmetrically placed at both ends of the transverse direction, forming a closed chamber together with the cover plate and the arc plate; Baffles are staggered and spaced out in the closed chamber, and the front or rear side of each baffle is at a set distance from the arc plate of the closed chamber, so that the liquid flow forms a serpentine or zigzag flow channel along each baffle in the closed chamber.
2. The subcooling box suitable for a condenser according to claim 1, characterized in that, Several through holes are provided on the end plate, and several subcooled heat exchange tubes are installed in the closed chamber through the through holes. The heat exchange tubes pass through the baffles they pass through.
3. The subcooling box suitable for a condenser according to claim 1, characterized in that, The bottom of the curved plate has a circular convex shape that forms a fan-shaped arc surface with an angle of 30 to 50 degrees.
4. The subcooling box suitable for a condenser according to claim 1, characterized in that, The liquid outlet at the bottom of the arc-shaped plate is offset at an angle of 10-30 degrees in the vertical direction of the end plate.
5. The subcooling box suitable for a condenser according to claim 1, characterized in that, The liquid outlet at the bottom of the arc-shaped plate is located in the middle of the arc-shaped plate in the horizontal direction.
6. The subcooling box suitable for a condenser according to claim 1, characterized in that, Rectangular notches are provided at both ends of the bottom of the arc-shaped plate along the horizontal axis, and the notches are symmetrical about the horizontal center line.
7. The subcooling box suitable for a condenser according to claim 1, characterized in that, The baffle plate is covered with numerous small holes.
8. A horizontal condenser, characterized in that, The subcooling box suitable for a condenser as described in any one of claims 1-7 is used; wherein: Inside the cylinder, a group of condenser heat exchange tubes and a gas distributor are arranged in sequence above the subcooled box; The distance between the transverse ends of the subcooling box and the axial ends of the tube sheet of the cylinder is set; The arc-shaped plate at the bottom of the subcooling box has the same curvature as the cylinder and the spacing is set accordingly. The liquid outlet at the bottom of the subcooling box is positioned downwards through the cylinder.
9. The horizontal condenser according to claim 8, characterized in that, The cylinder has a left water chamber and a right water chamber respectively installed at both ends of the axial direction through the tube sheet.
10. The horizontal condenser according to claim 8, characterized in that, The right water chamber is divided into two chambers: the first chamber and the third chamber. The left water chamber contains the second chamber. The tube side adopts a dual-flow design. The refrigerant channel is set to connect sequentially from the inlet to the first chamber, the subcooling heat exchange tube, the condensing heat exchange tube, the second chamber, the upper condensing heat exchange tube, the third chamber, and then to the outlet pipe.
11. The horizontal condenser according to claim 8, characterized in that, The gas distributor is located below the air inlet pipe at the top of the cylinder and has several vent holes to disperse the gas along the axial direction of the cylinder.
12. The horizontal condenser according to claim 8, characterized in that, The gas distributor is laid out at an angle, so that the airflow center intake path passes at an angle through the diameter of the cylinder.