Heat exchanger assembly for air conditioner

Abstract

The invention relates to the technical field of air conditioner heat exchangers, and discloses a heat exchanger assembly for an air conditioner, which realizes uniform distribution of steam at an inlet position, ensures uniform contact between the steam and a heat exchange tube subsequently, and realizes efficient heat exchange between a heat source and a cooling liquid. The baffle plates are arranged in an up-and-down staggered mode to achieve vertical S-shaped flow of steam and are arranged in a left-and-right staggered mode, the two side faces of each spoiler are inclined faces, transverse S-shaped flow of the steam is achieved, it is guaranteed that the contact area of the steam and the heat exchange pipes is larger, the heat exchange effect is good, the spoiler blocks can destroy the boundary layer of steam flow, disturbance on steam flow is increased, and the heat exchange efficiency is improved. The circulation speed during steam heat exchange is slowed down, the contact time of the steam and the heat exchange pipes is prolonged, and the heat exchange effect is further improved; and when condensate water generated after heat exchange is finished flows out, the condensate water is filtered firstly, the heat conduction pipe is prevented from being blocked, the condensate water exchanges heat with the introduced cooling liquid after entering the heat conduction pipe, preheating of the cooling liquid is achieved, and energy waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning heat exchangers, in particular to a heat exchanger assembly for an air-conditioning. Background Art

[0002] The air conditioning heat exchanger is a key device in the air conditioning system for achieving heat exchange between cold and hot fluids. Its performance directly affects the cooling and heating effects of the air conditioner. In the air conditioning system, the heat exchanger is mainly responsible for transferring the heat carried by the refrigerant to the environment (cooling process) or absorbing heat from the environment (heating process), thereby achieving indoor temperature regulation.

[0003] After searching, the patent with application number CN201810846682.6 discloses a heat exchanger and an air conditioner, which relates to the technical field of air conditioners. A heat exchanger includes a mounting body, a plurality of U-tubes and a plurality of elbows, and the plurality of U-tubes and the plurality of elbows are all mounted on the mounting body. The plurality of elbows are respectively connected to the plurality of U-tubes and form a first branch branch, a second branch branch, a third branch branch and a fourth branch branch. The first branch branch and the fourth branch branch both extend from the heat exchange inefficient area to the heat exchange sub-efficient area, and the second branch branch and the third branch branch both extend from the heat exchange efficient area to the heat exchange inefficient area. An air conditioner, which adopts the above-mentioned heat exchanger. The heat exchanger and air conditioner provided by the invention can improve the heat exchange efficiency of the heat exchanger and avoid condensation in the heat exchanger.

[0004] When the current air-conditioning heat exchanger introduces the heat source to exchange heat with the coolant, the heat source is unevenly distributed at the entrance, resulting in the heat source being unable to efficiently exchange heat with the coolant during the flow process inside the heat exchanger; by installing a baffle inside the heat exchanger, the heat source is guided to flow in an S shape, but the heat exchanger lacks a turbulent component and cannot destroy the boundary layer of the heat source flow. The heat source quickly escapes after contact with the heat exchange tube filled with coolant, that is, the contact time between the heat source and the heat exchange tube is short, the heat exchange effect is poor, and energy is easily wasted; the condensed water produced after steam heat exchange is generally discharged directly, and the condensed water after heat exchange still has mobile heat, which will also cause energy waste, so we need to propose a heat exchanger assembly for air conditioning. Summary of the invention

[0005] The object of the present invention is to provide a heat exchanger assembly for air conditioning. Through the design of the air intake mechanism, the steam is accelerated and directed into the box body through the spiral channel of the air intake pipe, and evenly enters the heat exchanger through the through holes arranged in a matrix at the bottom of the box body, so that the steam is evenly distributed at the inlet position, ensuring that the steam is subsequently in uniform contact with the heat exchange tube, and realizing efficient heat exchange between the heat source and the coolant; through the design of the baffle and the spoiler block, the baffle is not only staggered up and down to realize the vertical S-shaped flow of the steam, but also staggered left and right, and the two side surfaces of the spoiler are set as inclined surfaces to realize the horizontal S-shaped flow of the steam The turbulent block can destroy the boundary layer of the steam flow, increase the disturbance to the steam flow, slow down the circulation speed of the steam during heat exchange, increase the contact time between the steam and the heat exchange tube, and further improve the heat exchange effect; through the design of the filtering mechanism and the heat conducting tube, when the condensed water produced at the end of the heat exchange flows out, the condensed water is first filtered to prevent the heat conducting tube from being blocked. After the condensed water enters the heat conducting tube, it exchanges heat with the coolant introduced, so as to realize the preheating of the coolant and reduce the waste of energy, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a heat exchanger assembly for air conditioning, comprising a heat exchanger shell, a heat exchange tube for circulating coolant is installed inside the heat exchanger shell, a notch with an arc-shaped concave surface is opened on the outer wall of the heat exchanger tube, a steam inlet for introducing steam is installed on the top of the heat exchanger shell, an air intake mechanism for guiding steam into the heat exchanger and achieving uniform distribution of steam is installed inside the steam inlet, a steam outlet for discharging steam after heat exchange is also installed at the bottom of the heat exchanger shell, and a filtering mechanism for filtering impurities in condensed water is connected to the steam outlet; A second baffle located between the steam inlet and the steam outlet is installed inside the heat exchanger shell, and a group of baffles for changing the steam flow direction are installed between the inner top of the heat exchanger shell and the upper surface of the second baffle, and between the inner bottom of the heat exchanger shell and the lower surface of the second baffle. Each group of baffles is staggered, and the ends of the heat exchange tubes pass through the baffles. Both sides of the baffles are inclined. The heat exchanger shell is also provided with a flow-disturbing mechanism for destroying the steam flow boundary layer. The flow-disturbing mechanism includes a first flow-guiding groove, a second flow-guiding groove, a first flow-disturbing block, and a second flow-disturbing block.

[0007] Preferably, a front end cover is installed at one end of the heat exchanger shell, and a coolant outlet and a coolant inlet are respectively installed on the end surface of the front end cover, and the coolant outlet is located above the coolant inlet, and a first partition is installed in the middle position inside the front end cover, and the first partition is used to isolate the coolant just entering and the coolant after heat exchange.

[0008] Preferably, a tube sheet is installed inside the heat exchanger shell near one end of the front end cover, a second through hole is opened on the tube sheet, the outer wall of the end of the heat exchange tube is sealed and inserted into the inside of the second through hole, a first through hole is opened on the baffle, and the outer wall of the heat exchange tube is clamped into the inside of the first through hole.

[0009] Preferably, the air intake mechanism comprises an air intake pipe sealed and inserted in the steam inlet, the bottom end of the air intake pipe penetrates the heat exchanger shell and is located inside the heat exchanger shell, and the inner wall of the air intake pipe is provided with a spiral channel for preliminary disturbance and mixing of the steam.

[0010] Preferably, the air intake mechanism also includes a box body installed inside the heat exchanger shell, the bottom end of the air intake pipe passes through the top of the box body and is located inside the box body, and a plurality of through holes arranged in a matrix are opened at the bottom of the box body, and a fan blade is rotatably installed inside each through hole.

[0011] Preferably, the filtering mechanism includes an inlet channel, a discharge channel, a first shell and a second shell connected between the inlet channel and the discharge channel, the first shell and the second shell are aligned and arranged, the first shell and the second shell are both hollow semi-cylindrical shells, the first shell is fixed on one side of the outer wall of the inlet channel and the discharge channel, and the second shell is sealed and installed on the other side of the outer wall of the inlet channel and the discharge channel.

[0012] Preferably, two mounting grooves are provided on the first shell and the second shell, the inner diameter of the mounting groove is equal to the outer diameter of the liquid inlet channel and the liquid discharge channel, the mounting groove on the first shell is fixed to one side of the outer wall of the liquid inlet channel and the liquid discharge channel, the interior of the mounting groove on the second shell is connected to the second sealing strip, the liquid inlet channel and the liquid discharge channel are both provided with sealing grooves, and the second sealing strip is clamped in the interior of the sealing groove.

[0013] Preferably, a first sealing strip is installed on the end face of the first shell, and an anti-leakage groove is opened on the end face of the second shell, the first sealing strip is clamped in the inside of the anti-leakage groove, and a filter element for filtering impurities in condensed water is installed in the closed chamber formed by the first shell and the second shell, and the inner walls of the first shell and the second shell are connected to a plurality of semicircular support members, the support members in the first shell and the second shell are aligned, and the filter element is clamped between the upper and lower support members.

[0014] Preferably, a liquid inlet pipe connected to the coolant inlet is also provided below the heat exchanger shell, and a spiral heat conduction pipe is also provided inside the liquid inlet pipe. Both ends of the heat conduction pipe pass through the liquid inlet pipe and are located outside the liquid inlet pipe, and the inlet end of the heat conduction pipe is connected to the drainage channel.

[0015] Preferably, a first arc-shaped guide groove is provided on the upper and lower surfaces of the second partition, a second arc-shaped guide groove is provided on the inner top of the heat exchanger shell, a plurality of groups of first spoiler blocks with spherical surfaces are installed inside the first guide groove, and a plurality of groups of second spoiler blocks with spherical surfaces are installed inside the second guide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the design of the air intake mechanism, so that the steam enters the box body in an accelerated and directional manner through the spiral channel of the air intake pipe, and enters the heat exchanger evenly through the through holes arranged in a matrix at the bottom of the box body, so that the steam is evenly distributed at the inlet position, ensuring that the steam is in uniform contact with the heat exchange tubes later, and realizing efficient heat exchange between the heat source and the coolant; 2. The present invention adopts the design of baffles and spoiler blocks. The baffles are not only staggered up and down to realize the vertical S-shaped flow of steam, but also staggered left and right. The two side surfaces of the spoiler are set as inclined surfaces to realize the horizontal S-shaped flow of steam, thereby ensuring a larger contact area between the steam and the heat exchange tube and a good heat exchange effect. The spoiler blocks can destroy the boundary layer of the steam flow, increase the disturbance to the steam flow, slow down the circulation speed of the steam during heat exchange, increase the contact time between the steam and the heat exchange tube, and further improve the heat exchange effect. 3. The present invention uses the design of the filtering mechanism and the heat pipe. When the condensed water generated at the end of heat exchange flows out, the condensed water is first filtered to prevent the heat pipe from being blocked. After the condensed water enters the heat pipe, it exchanges heat with the coolant introduced, thereby preheating the coolant and reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 An exploded view of the present invention; Figure 3 It is a structural schematic diagram of the baffle of the present invention; Figure 4 is a schematic structural diagram of the second baffle of the present invention; Figure 5 For the present invention Figure 2 Enlarged view of part A in the middle; Figure 6 An exploded view of the air intake mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the steam outlet, liquid inlet pipe, filtering mechanism and heat conduction pipe of the present invention; Figure 8 An exploded view of the filter mechanism of the present invention; Fig. 9 It is a schematic diagram of the bottom structure of the present invention; Fig.10 It is a schematic diagram of the inner top of the heat exchanger shell of the present invention; Fig.11 For the present invention Figure 2 Enlarged view of part B in the middle.

[0018] In the figure: 1, heat exchanger housing; 1001, second guide groove; 1002, second spoiler; 2, front end cover; 3, coolant outlet; 4, coolant inlet; 5, steam inlet; 6, steam outlet; 7, heat exchange tube; 71, missing groove; 8, liquid inlet; 9, first partition; 10, second partition; 101, first guide groove; 102, first spoiler; 11, baffle; 111, first through hole; 12, tube sheet; 121, second Through hole; 13, air intake mechanism; 131, air intake pipe; 132, spiral channel; 133, box body; 134, through hole; 135, fan blade; 14, filtering mechanism; 141, first shell; 142, second shell; 143, liquid inlet channel; 144, liquid discharge channel; 145, mounting groove; 146, first sealing strip; 147, support member; 148, filter element; 149, second sealing strip; 1410, sealing groove; 15, heat pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-11 The present invention provides a technical solution: a heat exchanger assembly for an air conditioner, comprising a heat exchanger housing 1, a front end housing 2 is installed at one end of the heat exchanger housing 1, the size design of the end face of the front end housing 2 matches the size design of the end face of the heat exchanger housing 1, a coolant outlet 3 and a coolant inlet 4 are respectively installed on the end face of the front end housing 2, and the coolant outlet 3 is located above the coolant inlet 4, and a first partition 9 is installed at the middle position inside the front end housing 2, and the first partition 9 is used to isolate the coolant that has just entered and the coolant that has been heat exchanged, so as to prevent the coolant that has just entered and the coolant that has been heat exchanged from mixing; After the coolant enters from the coolant inlet 4 , it flows through the heat exchange tube 7 in the heat exchanger shell 1 and exchanges heat with the steam. Then, the coolant is discharged from the coolant outlet 3 .

[0021] A steam inlet 5 for introducing steam is installed on the top of the heat exchanger housing 1, and an air intake mechanism 13 for guiding steam into the heat exchanger and achieving uniform distribution of steam is installed inside the steam inlet 5; The air intake mechanism 13 includes an air intake pipe 131 sealed and plugged into the steam inlet 5. The bottom end of the air intake pipe 131 penetrates the heat exchanger housing 1 and is located inside the heat exchanger housing 1. The inner wall of the air intake pipe 131 is provided with a spiral channel 132 for preliminary disturbance and mixing of the steam. The air intake mechanism 13 further includes a box body 133 installed inside the heat exchanger housing 1, the bottom end of the air intake pipe 131 passes through the top of the box body 133 and is located inside the box body 133, and a plurality of through holes 134 arranged in a matrix are opened at the bottom of the box body 133, and a fan blade 135 is rotatably installed inside each through hole 134; Through the evenly distributed through holes 134, the steam can flow evenly from the through holes 134 to the inside of the heat exchanger shell 1. When the steam flows through the through holes 134, the fan blades 135 will be driven to rotate. At the same time, the rotating fan blades 135 will also guide the steam to form an airflow, which accelerates the steam to flow out from the inside of the through holes 134, so that the steam is evenly distributed at the position of the steam inlet 5, so that the steam can be evenly contacted with the heat exchange tubes 7 during the subsequent circulation process, which can effectively prevent the accumulation of steam during the circulation process, that is, prevent the steam from contacting only part of the heat exchange tubes 7 and not contacting the heat exchange tubes 7 located at the inner edge of the heat exchanger shell 1, so as to achieve a uniform heat exchange effect, thereby improving the heat exchange effect.

[0022] The bottom of the heat exchanger housing 1 is also provided with a steam outlet 6 for discharging the steam after heat exchange. After heat exchange, the steam condenses into condensate / drainage, and the internal environment of the heat exchanger housing 1 is not clean and dust-free, and more or less contains some impurities, floating dust, etc. The impurities and floating dust in the heat exchanger housing 1 merge with the steam, that is, are taken away by the steam, resulting in the condensed condensate / drainage containing impurities. In order to prevent the impurities therein from clogging the pipeline, the steam outlet 6 is connected with a filtering mechanism 14 for filtering out impurities in the condensate; The filtering mechanism 14 includes a liquid inlet channel 143, a liquid discharge channel 144, a first shell 141 and a second shell 142 connected between the liquid inlet channel 143 and the liquid discharge channel 144, the first shell 141 and the second shell 142 are aligned and arranged, and the first shell 141 and the second shell 142 are both hollow semi-cylindrical shells. Specifically, the first shell 141 is fixed on one side of the outer wall of the liquid inlet channel 143 and the liquid discharge channel 144, and the second shell 142 is sealed and installed on the other side of the outer wall of the liquid inlet channel 143 and the liquid discharge channel 144, so as to form a sealed cavity between the liquid inlet channel 143, the liquid discharge channel 144, the first shell 141 and the second shell 142 to prevent the leakage of condensed water.

[0023] It is worth noting that two mounting grooves 145 are provided on each of the first shell 141 and the second shell 142. The inner diameter of the mounting groove 145 is equal to the outer diameter of the liquid inlet channel 143 and the liquid discharge channel 144. The mounting groove 145 on the first shell 141 is fixed to one side of the outer wall of the liquid inlet channel 143 and the liquid discharge channel 144. The interior of the mounting groove 145 on the second shell 142 is connected to a second sealing strip 149. The liquid inlet channel 143 and the liquid discharge channel 144 are both provided with sealing grooves 1410. The second sealing strip 149 is clamped inside the sealing groove 1410. In addition, a first sealing strip 146 is installed on the end surface of the first shell 141, and an anti-leakage groove is opened on the end surface of the second shell 142. Figure 8 Because of the middle viewing angle, it is not shown that the first sealing strip 146 is clamped inside the anti-leakage groove; Importantly, a filter element 148 for filtering out impurities in condensed water is installed in the closed chamber formed by the first shell 141 and the second shell 142. In addition, the inner walls of the first shell 141 and the second shell 142 are connected to a plurality of semicircular support members 147. The support members 147 in the first shell 141 and the second shell 142 are aligned, and the filter element 148 is clamped between the upper and lower support members 147.

[0024] Through the design of the above filtering mechanism 14, the condensed water generated after the steam heat exchange is completed is discharged to the liquid inlet channel 143 through the steam outlet 6, and then flows into the closed chamber formed by the first shell 141 and the second shell 142. The filter element 148 inside the condensed water filters out impurities in the condensed water, and then the condensed water after the impurities are filtered out is discharged from the drain channel 144; After long-term use, since the filter element 148 absorbs a large amount of impurities, the filtering effect of the impurities is reduced, and the filter element 148 needs to be replaced. The specific operation is: cancel the fixed connection between the first shell 141 and the second shell 142 (the locking mechanism between the first shell 141 and the second shell 142 is a common means in the prior art, which is not shown in the figure), and optionally, the locking mechanism includes a connecting plate connected to the first shell 141 and the second shell 142, and the two sides of the first shell 141 and the second shell 142 are installed with connecting plates, and the connecting plates on the first shell 141 and the second shell 142 are locked by bolts and nuts; Then remove the second shell 142, disengage the second sealing strip 149 in the mounting groove 145 on the second shell 142 from the sealing groove 1410 on the liquid inlet channel 143 and the liquid discharge channel 144, and disengage the first sealing strip 146 on the first shell 141 from the anti-leakage groove on the second shell 142, and complete the disassembly of the second shell 142. Then remove the filter element 148 located between the multiple support members 147, install the unused filter element 148, and finally reinstall the second shell 142. The filtering mechanism 14 not only realizes the filtration of the generated condensed water, ensures the cleanliness of the condensed water, and prevents clogging of the pipeline, but also facilitates the replacement of the filter element 148 installed therein separately, and the replacement method is simple and easy to operate, thereby ensuring the filtering effect of the condensed water.

[0025] Furthermore, a liquid inlet pipe 8 connected to the coolant inlet 4 is further provided below the heat exchanger housing 1. The liquid inlet pipe 8 is L-shaped, and a spiral heat conducting pipe 15 is further provided inside the liquid inlet pipe 8. Both ends of the heat conducting pipe 15 penetrate the liquid inlet pipe 8 and are located outside the liquid inlet pipe 8. In addition, the inlet end of the heat conducting pipe 15 is connected to the drain channel 144. Specifically, after the condensed water treated by the filtering mechanism 14 is discharged from the drainage channel 144, it enters the interior of the heat conducting pipe 15. Since the steam after heat exchange with the heat exchange tube 7 becomes condensed water, the condensed water still has a certain amount of heat. In order to avoid heat waste, in the process of introducing coolant into the liquid inlet pipe 8, the condensed water with heat flows in the heat conducting pipe 15, realizing heat exchange between the condensed water and the coolant, making full use of the heat in the condensed water, and the condensed water after heat exchange treatment flows out from the other end of the heat conducting pipe 15.

[0026] It should be emphasized that a second partition 10 located between the steam inlet 5 and the steam outlet 6 is installed inside the heat exchanger shell 1, and a group of baffles 11 for changing the flow direction of steam are installed between the inner top of the heat exchanger shell 1 and the upper surface of the second partition 10, and between the inner bottom of the heat exchanger shell 1 and the lower surface of the second partition 10. Each group of baffles 11 is staggered, and a heat exchange tube 7 for circulating coolant is installed inside the heat exchanger shell 1, and the end of the heat exchange tube 7 passes through the baffle 11, that is, the baffle 11 also supports the installation of the heat exchange tube 7; like Fig.11 As shown, through the setting of the baffle 11, after the steam enters from the steam inlet 5, under the guidance of the baffle 11, the steam makes a continuous S-shaped flow inside the heat exchanger shell 1, that is, the steam first passes from the bottom of the first baffle 11, and then passes from the top of the second baffle 11, passes from the bottom of the third baffle 11, passes from the top of the fourth baffle 11... and so on, to achieve the S-shaped flow of steam.

[0027] As an improved design, the multiple baffles 11 of the same group are not only staggered in the longitudinal direction, but also staggered in the transverse direction, and both side surfaces of the baffles 11 are set as inclined surfaces, so that the steam can flow in an S-shaped manner in the longitudinal direction under the guidance of the baffles 11, and can also flow in the transverse direction along the inclined surfaces on the baffles 11, that is, the steam can also flow in an S-shaped manner in the transverse direction, which can ensure that the steam contacts the heat exchange tubes 7 inside the heat exchanger shell 1 over a large area, thereby improving the heat exchange effect; As a further improved design, the interior of the heat exchanger shell 1 is also provided with a spoiler mechanism for destroying the steam flow boundary layer, and the spoiler mechanism includes a first guide groove 101, a second guide groove 1001, a first spoiler block 102, and a second spoiler block 1002. The upper surface and the lower surface of the second baffle 10 are both provided with a first guide groove 101 with an arc surface, and the inner top of the heat exchanger shell 1 is provided with a second guide groove 1001 with an arc surface. When the steam hits the arc surface of the first guide groove 101 and the second guide groove 1001, the steam can be smoothly turned to prevent the steam from directly hitting the surface of the second baffle 10 and the inner top of the heat exchanger shell 1. The arc surface design of the first guide groove 101 and the second guide groove 1001 allows the steam to turn more smoothly when it contacts the surface of the second baffle 10 and the inner top of the heat exchanger shell 1. The first guide groove 101 is internally installed with a plurality of first spoiler blocks 102 with spherical surfaces, and the second guide groove 1001 is internally installed with a plurality of second spoiler blocks 1002 with spherical surfaces. The first spoiler blocks 102 and the second spoiler blocks 1002 can destroy the boundary layer of the steam flow, increase the disturbance and mixing of the steam, and slow down the flow speed of the steam between the baffles 11, thereby increasing the contact time between the steam and the heat exchange tube 7, and thus improving the heat exchange efficiency between the steam and the coolant.

[0028] As a further improved design, a notch 71 with an arc-shaped concave surface is provided on the outer wall of the heat exchange tube 7. Specifically, the notch 71 is provided on the outer wall of the straight tube portion of the heat exchange tube 7. Through the design of the notch 71, the surface area of ​​the heat exchange tube 7 is increased, and the contact area between the steam and the heat exchange tube 7 can be increased, thereby further improving the heat exchange effect.

[0029] The heat exchange tube 7 is configured as a U-shaped heat exchange tube 7, the end of the heat exchange tube 7 is connected to the interior of the front end cover 2, and a plurality of heat exchange tubes 7 are provided. The upper half of the heat exchange tube 7 is located between the second partition 10 and the inner top of the heat exchanger shell 1, and the lower half of the heat exchange tube 7 is located between the second partition 10 and the inner bottom of the heat exchanger shell 1, that is, the coolant enters from the lower half of the heat exchange tube 7, and after heat exchange with the entire steam, the coolant flows out from the upper half of the heat exchange tube 7.

[0030] In addition, a tube sheet 12 is installed at one end of the interior of the heat exchanger shell 1 close to the front end cover 2, and a second through hole 121 is opened on the tube sheet 12. The outer wall of the end of the heat exchange tube 7 is sealed and inserted into the interior of the second through hole 121. A first through hole 111 is opened on the baffle 11, and the outer wall of the heat exchange tube 7 is clamped into the interior of the first through hole 111.

[0031] When in use, the coolant is introduced from one end of the liquid inlet pipe 8, enters the lower part of the first partition plate 9 in the front section housing through the coolant inlet 4, and then enters the interior of the heat exchange tube 7, that is, the coolant flows inside the heat exchange tube 7, and at the same time, the steam is introduced from the air inlet pipe 131 in the steam inlet 5, and then the steam enters the interior of the box body 133, and through the evenly distributed through holes 134, the steam can flow evenly from the through holes 134 to the interior of the heat exchanger housing 1. When the steam flows through the through holes 134, it will drive the fan blades 135 to rotate. At the same time, the rotating fan blades 135 will also guide the steam to form an airflow, so that it is accelerated to flow out from the inside of the through holes 134, so that the steam is evenly distributed at the position of the steam inlet 5; Subsequently, under the guidance of the baffle 11, the steam makes a continuous S-shaped flow inside the heat exchanger shell 1, and while the steam makes an S-shaped flow in the longitudinal direction, the steam can also realize a lateral flow along the inclined surface of the baffle 11, that is, the steam can also make an S-shaped flow in the lateral direction, which can ensure that the steam contacts a large area of ​​the heat exchange tube 7 inside the heat exchanger shell 1, thereby improving the heat exchange effect; The first spoiler 102 and the second spoiler 1002 can destroy the boundary layer of the steam flow, increase the disturbance and mixing of the steam, and slow down the flow speed of the steam between the baffles 11, increase the contact time between the steam and the heat exchange tube 7, and thus improve the heat exchange efficiency between the steam and the coolant; After the steam heat exchange is completed, the condensed water generated is discharged to the liquid inlet channel 143 through the steam outlet 6, and then flows into the closed chamber formed by the first shell 141 and the second shell 142. The filter element 148 inside the chamber removes impurities in the condensed water, and then the condensed water after the impurities are removed is discharged from the liquid drain channel 144. After the condensed water treated by the filter mechanism 14 is discharged from the drainage channel 144, it enters the interior of the heat conduction pipe 15. Since the steam after heat exchange with the heat exchange pipe 7 becomes condensed water, the condensed water still has a certain amount of heat. In order to avoid heat waste, in the process of introducing coolant into the liquid inlet pipe 8, the condensed water with heat flows in the heat conduction pipe 15, realizing heat exchange between the condensed water and the coolant, making full use of the heat in the condensed water, and the condensed water after heat exchange treatment flows out from the other end of the heat conduction pipe 15.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger assembly for an air conditioner, comprising a heat exchanger housing (1), characterized in that: A heat exchange tube (7) for circulating coolant is installed inside the heat exchanger shell (1), a notch (71) having an arc-shaped concave surface is provided on the outer wall of the heat exchanger tube (7), a steam inlet (5) for introducing steam is installed on the top of the heat exchanger shell (1), an air intake mechanism (13) for guiding steam into the heat exchanger and achieving uniform distribution of steam is installed inside the steam inlet (5), a steam outlet (6) for discharging steam after heat exchange is also installed at the bottom of the heat exchanger shell (1), and a filtering mechanism (14) for filtering impurities in condensed water is connected to the steam outlet (6); A second baffle (10) located between the steam inlet (5) and the steam outlet (6) is installed inside the heat exchanger shell (1), and a group of baffles (11) for changing the flow direction of steam are installed between the inner top of the heat exchanger shell (1) and the upper surface of the second baffle (10), and between the inner bottom of the heat exchanger shell (1) and the lower surface of the second baffle (10). Each group of baffles (11) is arranged in a staggered manner. The end of the heat exchange tube (7) passes through the baffle (11), and both side surfaces of the baffle (11) are arranged as inclined surfaces. A flow-disturbing mechanism for destroying the steam flow boundary layer is also provided inside the heat exchanger shell (1), and the flow-disturbing mechanism comprises a first flow guide groove (101), a second flow guide groove (1001), a first flow-disturbing block (102), and a second flow-disturbing block (1002).

2. The heat exchanger assembly for air conditioning according to claim 1, characterized in that: A front end cover (2) is installed at one end of the heat exchanger housing (1), and a coolant outlet (3) and a coolant inlet (4) are respectively installed on the end surface of the front end cover (2), and the coolant outlet (3) is located above the coolant inlet (4). A first partition (9) is installed in the middle position inside the front end cover (2), and the first partition (9) is used to isolate the coolant that has just entered and the coolant that has been heat exchanged.

3. The heat exchanger assembly for air conditioning according to claim 1, characterized in that: A tube sheet (12) is installed at one end of the heat exchanger housing (1) near the front end cover (2), the tube sheet (12) is provided with a second through hole (121), the outer wall of the end of the heat exchange tube (7) is sealed and inserted into the inside of the second through hole (121), the baffle (11) is provided with a first through hole (111), and the outer wall of the heat exchange tube (7) is clamped into the inside of the first through hole (111).

4. The heat exchanger assembly for air conditioning according to claim 1, characterized in that: The air intake mechanism (13) comprises an air intake pipe (131) which is sealed and plugged into the steam inlet (5); the bottom end of the air intake pipe (131) passes through the heat exchanger housing (1) and is located inside the heat exchanger housing (1); and the inner wall of the air intake pipe (131) is provided with a spiral channel (132) for preliminary disturbance and mixing of the steam.

5. The heat exchanger assembly for air conditioning according to claim 4, characterized in that: The air intake mechanism (13) further comprises a box body (133) mounted inside the heat exchanger housing (1); the bottom end of the air intake pipe (131) passes through the top of the box body (133) and is located inside the box body (133); and a plurality of through holes (134) arranged in a matrix are provided at the bottom of the box body (133); a fan blade (135) is rotatably mounted inside each through hole (134).

6. The heat exchanger assembly for air conditioning according to claim 1, characterized in that: The filtering mechanism (14) comprises a liquid inlet channel (143), a liquid discharge channel (144), a first shell (141) and a second shell (142) connected between the liquid inlet channel (143) and the liquid discharge channel (144); the first shell (141) and the second shell (142) are arranged in alignment; the first shell (141) and the second shell (142) are both hollow semi-cylindrical shells; the first shell (141) is fixed to one side of the outer wall of the liquid inlet channel (143) and the liquid discharge channel (144); and the second shell (142) is sealed and mounted to the other side of the outer wall of the liquid inlet channel (143) and the liquid discharge channel (144).

7. The heat exchanger assembly for air conditioning according to claim 6, characterized in that: The first shell (141) and the second shell (142) are each provided with two mounting grooves (145); the inner diameter of the mounting groove (145) is equal to the outer diameter of the liquid inlet channel (143) and the liquid discharge channel (144); the mounting groove (145) on the first shell (141) is fixed to one side of the outer wall of the liquid inlet channel (143) and the liquid discharge channel (144); the interior of the mounting groove (145) on the second shell (142) is connected to a second sealing strip (149); the liquid inlet channel (143) and the liquid discharge channel (144) are each provided with a sealing groove (1410); the second sealing strip (149) is clamped inside the sealing groove (1410).

8. The heat exchanger assembly for air conditioning according to claim 7, characterized in that: A first sealing strip (146) is installed on the end surface of the first shell (141), an anti-leakage groove is opened on the end surface of the second shell (142), the first sealing strip (146) is clamped inside the anti-leakage groove, a filter element (148) for filtering impurities in condensed water is installed in the closed chamber formed by the first shell (141) and the second shell (142), the inner walls of the first shell (141) and the second shell (142) are connected to a plurality of semicircular support members (147), the support members (147) in the first shell (141) and the second shell (142) are aligned, and the filter element (148) is clamped between the upper and lower support members (147).

9. The heat exchanger assembly for air conditioning according to claim 8, characterized in that: A liquid inlet pipe (8) connected to the coolant inlet (4) is also provided below the heat exchanger housing (1), and a spiral heat conducting pipe (15) is also provided inside the liquid inlet pipe (8). Both ends of the heat conducting pipe (15) pass through the liquid inlet pipe (8) and are located outside the liquid inlet pipe (8), and the inlet end of the heat conducting pipe (15) is connected to the liquid discharge channel (144).

10. The heat exchanger assembly for air conditioning according to claim 1, characterized in that: The upper and lower surfaces of the second partition plate (10) are both provided with a first guide groove (101) with an arc surface, the inner top of the heat exchanger housing (1) is provided with a second guide groove (1001) with an arc surface, a plurality of groups of first spoiler blocks (102) with spherical surfaces are installed inside the first guide groove (101), and a plurality of groups of second spoiler blocks (1002) with spherical surfaces are installed inside the second guide groove (1001).

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