Coil heat exchanger and air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, in particular to a coil heat exchanger and an air conditioning system.The coil heat exchanger comprises a coil assembly, a header assembly and an exhaust pipe; the collecting pipe assembly comprises a water inlet pipe and a water outlet pipe, and the water inlet pipe, the coil pipe assembly and the water outlet pipe are sequentially connected to form a flow path; the exhaust pipe is provided with a connector end and an exhaust end, the connector end is communicated with the upper portion of the flow path, the exhaust end extends downwards from the connector end to the preset operation height, and the exhaust end is provided with an exhaust valve. According to the technical scheme, the connector end of the exhaust pipe communicates with the upper portion of the flow path composed of the coil pipe assembly, the water inlet pipe and the water outlet pipe, the exhaust end of the exhaust pipe extends downwards to the low position height, and the technical problem that when the coil pipe heat exchanger is high or the installation position of an air conditioner system is high, exhaust operation is inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a coil heat exchanger and an air conditioning system. Background Art

[0002] Heat exchangers are a crucial component of air conditioning systems. During operation, the air within the heat exchanger coils must be regularly exhausted. Otherwise, this air accumulates inside the coils, clogging the pipes and reducing the flow rate of water in the pipes, thereby reducing the heat exchanger's efficiency and even causing corrosion in the coils, shortening the heat exchanger's service life.

[0003] In the process of implementing this application, the inventors discovered that the prior art has at least the following problems:

[0004] The exhaust device of the heat exchanger is usually installed on the upper part of the inlet and outlet water manifolds of the coil. When the height of the coil is high, it will make exhaust very inconvenient and require the use of ladders and other assistance, making operation difficult. Utility Model Content

[0005] The present application provides a coil heat exchanger and an air conditioning system, aiming to solve the above technical problems.

[0006] In a first aspect, an embodiment of the present application provides a coil heat exchanger, comprising:

[0007] Coil assembly;

[0008] A header assembly, comprising an inlet pipe and an outlet pipe, wherein the inlet pipe, the coil assembly and the outlet pipe are sequentially connected to form a flow path;

[0009] The exhaust pipe has an interface end and an exhaust end, wherein the interface end is communicated with the upper portion of the flow path, the exhaust end extends downward from the interface end to a preset working height, and the exhaust end is provided with an exhaust valve.

[0010] In some embodiments, the interface end is connected to the upper end of the water outlet pipe.

[0011] In some embodiments, the preset working height is consistent with the height of the position corresponding to the lower end of the coil assembly.

[0012] In some embodiments, the coil heat exchanger further includes a first water receiving pan, which is disposed below the exhaust pipe to receive water vapor exhausted from the exhaust pipe.

[0013] In some embodiments, the coil assembly, the water inlet pipe, and the water outlet pipe are arranged above the first water receiving tray, and the first water receiving tray is further used to receive condensed water on the coil assembly, the water inlet pipe, and the water outlet pipe.

[0014] In some embodiments, the coil heat exchanger further includes a second water receiving pan, the coil assembly includes a first coil and a second coil, the first water receiving pan is arranged below the second water receiving pan, the second water receiving pan is arranged below the second coil, and the second water receiving pan is used to receive condensed water on the second coil.

[0015] In some embodiments, the first coil and the second coil each include a plurality of branch pipes arranged in parallel, and both ends of each branch pipe are connected to the water inlet pipe and the water outlet pipe, respectively.

[0016] In some embodiments, the coil heat exchanger further includes two end plates respectively arranged at both ends of the coil assembly in the width direction, and two support plates respectively arranged at both ends of the coil assembly in the height direction. The two end plates and the two support plates together form a fixed frame, and the coil assembly is arranged in the fixed frame.

[0017] In a second aspect, the present application further proposes an air conditioning system, which includes the coil heat exchanger as described above.

[0018] In some embodiments, the exhaust valve is located at the lower end of the air conditioning system.

[0019] Compared with the existing technology, this technical solution has at least the following technical effects:

[0020] The technical solution of the present application solves the technical problem of inconvenient exhaust operation when the height of the coil heat exchanger is high or the installation position of the air-conditioning system is high by connecting the interface end of the exhaust pipe with the upper part of the flow path composed of the coil assembly, the water inlet pipe and the water outlet pipe, so that the exhaust end of the exhaust pipe extends downward to a lower position. The coil heat exchanger provided by the technical solution of the present application can be applied to different application scenarios, and the extension position height of the exhaust end of the exhaust pipe can be adjusted according to the actual application scenario. When the air-conditioning system where the coil heat exchanger is located is installed at a higher position, the exhaust pipe can be extended to the bottom of the entire air-conditioning system (excluding the exhaust pipe). When the air-conditioning system where the coil heat exchanger is located is installed at a lower position or a position of moderate height, but the coil heat exchanger itself is high, the exhaust pipe can be extended to the lower end of the entire coil heat exchanger (excluding the exhaust pipe). BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic structural diagram of a coil heat exchanger in one embodiment of the present application;

[0023] Figure 2 for Figure 1 A magnified view of part A;

[0024] Figure 3 for Figure 1 Enlarged view of part B.

[0025] Reference numerals:

[0026] Label name Label name 100 Coil heat exchanger 110 Coil assembly 111 First coil 112 Second coil 1121 branch pipe 121 End Plate 122 Support plate 131 First reinforcement bar 132 Second reinforcement bar 141 First water tray 142 Second water tray 150 water inlet pipe 150a water inlet 160 outlet pipe 160a water outlet 170 exhaust pipe 171 Interface 172 Exhaust end 173 exhaust valve DETAILED DESCRIPTION

[0027] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0029] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0030] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0031] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In the fan coil unit of an air conditioning system, the exhaust device is usually installed on the upper part of the inlet and outlet water manifolds of the coil heat exchanger. When the height of the coil heat exchanger is high or the installation position of the air conditioning system is high, it will make exhaust very inconvenient and require the use of ladders and other assistance, making operation difficult.

[0033] In order to solve the above technical problems, the present application proposes a coil heat exchanger 100 .

[0034] See also Figure 1 、 Figure 2 and Figure 3In an embodiment of the present application, the coil heat exchanger 100 includes a coil assembly 110, a header assembly and an exhaust pipe 170; the header assembly includes an inlet pipe 150 and an outlet pipe 160, and the inlet pipe 150, the coil assembly 110 and the outlet pipe 160 are connected in sequence to form a flow path; the exhaust pipe 170 has an interface end 171 and an exhaust end 172, the interface end 171 is connected to the upper part of the flow path, and the exhaust end 172 extends downward from the interface end 171 to a preset working height, and the exhaust end 172 is provided with an exhaust valve 173.

[0035] It is understandable that in the embodiments of the present application, the upper portion of the flow path refers to a higher section of the flow path, as long as it facilitates the discharge of gas in the flow path into the exhaust pipe 170. For example, when the coil assembly 110 is formed by winding a branch pipe 1121 from bottom to top, and the heights of the water inlet pipe 150 and the water outlet pipe 160 are consistent with the winding height of the coil assembly 110, the upper portion of the flow path includes the upper end of the coil assembly 110, the upper end of the water inlet pipe 150, and the upper end of the water outlet pipe 160. In other words, the interface end 171 can be connected to any one of the upper end of the coil assembly 110, the upper end of the water inlet pipe 150, or the upper end of the water outlet pipe 160.

[0036] In the embodiment of the present application, the preset working height refers to a height that can be reached by an operator without the aid of a ladder or other tool, so that the operator can reach the exhaust valve 173 and open or close the exhaust valve 173 without the aid of a ladder or other tool. The preset working height can be adjusted according to the actual application scenario. For example, the exhaust end 172 can extend downward from the interface end 171 to the lower end of the coil heat exchanger 100 (excluding the exhaust pipe 170), the lower end of the fan coil unit (excluding the exhaust pipe 170), or the lower end of the entire air conditioning system (excluding the exhaust pipe 170); when the air conditioning system is installed at a higher position, the exhaust end 172 can even extend downward to the bottom of the air conditioning system (excluding the exhaust pipe 170), until the operator can reach the exhaust valve 173 without the aid of a ladder or other tool, and quickly open or close the exhaust valve 173.

[0037] The technical solution of the present application solves the technical problem of inconvenient exhaust operation when the coil heat exchanger 100 is high or the air conditioning system is installed at a high position by connecting the interface end 171 of the exhaust pipe 170 to the upper part of the flow path formed by the coil assembly 110, the water inlet pipe 150, and the water outlet pipe 160, so that the exhaust end 172 of the exhaust pipe 170 extends downward to a lower position. The coil heat exchanger 100 provided by the technical solution of the present application can be applied to different application scenarios. The extension position height of the exhaust end 172 of the exhaust pipe 170 can be adjusted according to the actual application scenario. When the air conditioning system in which the coil heat exchanger 100 is installed is installed at a high position, the exhaust pipe 170 can be extended to the bottom of the entire air conditioning system (excluding the exhaust pipe 170). When the air conditioning system in which the coil heat exchanger 100 is installed is installed at a low position or a moderate height, but the coil heat exchanger 100 itself is high, the exhaust pipe 170 can be extended to the bottom end of the entire coil heat exchanger 100 (excluding the exhaust pipe 170).

[0038] In an embodiment of the present application, the water inlet pipe 150 and the water outlet pipe 160 are arranged on one side of the coil assembly 110, and a water inlet 150a is provided on the water inlet pipe 150, and a water outlet 160a is provided on the water outlet pipe 160. The water inlet pipe 150 and the water outlet pipe 160 extend upward from the height of the lower end of the coil assembly 110. The height of the water inlet pipe 150 and the water outlet pipe 160 can be greater than, equal to or slightly less than the height of the coil assembly 110. Preferably, the water inlet pipe 150 and the water outlet pipe 160 are consistent with the height of the coil assembly 110, and the height difference between the water inlet pipe 150 and the water outlet pipe 160 and the height of the coil assembly 110 is not more than 2 cm.

[0039] Based on comprehensive considerations of exhaust efficiency and processing difficulty, please refer to Figure 2 In one embodiment, the interface end 171 of the exhaust pipe 170 is in communication with the upper end of the water outlet pipe 160. Compared to communication with the coil assembly 110 or the water inlet pipe 150, the interface end 171 of the exhaust pipe 170 being in communication with the water outlet pipe 160 is more conducive to exhausting gas in the flow path.

[0040] Please continue reading Figure 2 In the above embodiment, specifically, the interface end 171 of the exhaust pipe 170 can be in an inverted "U" shape, an inverted "V" shape, or the like, and can be in communication with the side wall of the upper end of the water outlet pipe 160 or with the top of the water outlet pipe 160. Preferably, the interface end 171 of the exhaust pipe 170 is in communication with the top of the water outlet pipe 160. By making the interface end 171 of the exhaust pipe 170 in communication with the top of the water outlet pipe 160, it is more convenient to discharge the gas in the pipe of the coil assembly 110 into the exhaust pipe 170.

[0041] See also Figure 3 In one embodiment, based on the above embodiment, the preset operating height is aligned with the height corresponding to the lower end of the coil assembly 110. Specifically, the exhaust end 172 extends downward from the interface end 171 of the exhaust pipe 170 to the height corresponding to the lower end of the coil assembly 110. Extending the exhaust end 172 of the exhaust pipe 170 to the lowest point of the coil heat exchanger 100 solves the problem of the operator being unable to directly reach and open the exhaust valve 173 due to the high height of the coil assembly 110.

[0042] See also Figure 1 In this embodiment, the coil assembly 110 includes a first coil 111 and a second coil 112. The second coil 112 is disposed above the first coil 111. Both the first coil 111 and the second coil 112 include multiple branch pipes 1121 arranged vertically and in parallel. Both ends of the multiple branch pipes 1121 are connected to the water inlet pipe 150 and the water outlet pipe 160, respectively. Multiple fins are evenly spaced along the axial direction of the multiple branch pipes 1121. The fins are fixed to the branch pipes 1121 using a tube expansion method.

[0043] The coil heat exchanger 100 further includes two end plates 121, one on the left and one on the right, respectively, of the coil assembly 110. The two end plates 121 are a left end plate 121 and a right end plate 121, respectively. The left and right ends of the branch pipes 1121 of the first coil 111 and the second coil 112 are respectively passed through the left and right end plates 121. The branch pipes 1121 of the first coil 111 and the second coil 112 are fixed to the left and right end plates 121 via a tube expansion method. The installation of the left and right end plates 121 secures the positions of the branch pipes 1121 of the first coil 111 and the second coil 112.

[0044] When the coil assembly 110 is large, the left and right end plates 121 and 121 are at risk of failure due to excessive force. To address this technical issue, the coil heat exchanger 100 further includes two support plates 122, designated as a top support plate 122 and a bottom support plate 122, disposed at the upper and lower ends of the coil assembly 110, respectively. Specifically, the top support plate 122 is disposed above the second coil 112, and the bottom support plate 122 is disposed below the first coil 111. The left and right ends of the top and bottom support plates 122 are fixedly connected to the left and right end plates 121, respectively. The left end plate 121, the top support plate 122, the right end plate 121, and the support plates 122 are sequentially connected to form a fixed frame. Providing support plates 122 at the upper and lower ends of the coil assembly 110 improves the fixing strength of the left and right end plates 121 and 121.

[0045] See also Figure 1 and Figure 3 In one embodiment, the coil heat exchanger 100 further includes a first water receiving tray 141 , which is disposed below the exhaust pipe 170 to receive water vapor brought out by the exhaust pipe 170 during exhaust.

[0046] In more detail, the coil assembly 110 , the water inlet pipe 150 and the water outlet pipe 160 are all arranged above the first water receiving tray 141 , and the first water receiving tray 141 is also used to receive condensed water on the coil assembly 110 , the water inlet pipe 150 and the water outlet pipe 160 .

[0047] See also Figure 1 Based on the above embodiment, in one embodiment, the coil heat exchanger 100 further includes a second water receiving pan 142, which is arranged between the first coil 111 and the second coil 112. The left and right ends of the second water receiving pan 142 are fixedly connected to the left end plate 121 and the right end plate 121 respectively. The second water receiving pan 142 is used to receive condensed water on the second coil 112, and the condensed water on the first coil 111 is received by the first water receiving pan 141.

[0048] In a specific embodiment, the width of the first water receiving tray 141 is greater than the width of the second water receiving tray 142 . When the second water receiving tray 142 fails to receive all the condensed water on the second coil 112 , the first water receiving tray 141 is also used to receive the condensed water on the second coil 112 .

[0049] On the basis of the above embodiment, in one embodiment, the coil heat exchanger 100 further includes a reinforcing component, and the reinforcing component is disposed on the fixing frame to increase the strength of the fixing frame.

[0050] See also Figure 1 Specifically, the reinforcement assembly includes a first reinforcement rod 131 and a second reinforcement rod 132. The upper and lower ends of the first reinforcement rod 131 are respectively connected to the middle of the top support plate 122 and the middle of the second water receiving tray 142, and the upper and lower ends of the second reinforcement rod 132 are respectively connected to the middle of the second water receiving tray 142 and the middle of the bottom support plate 122.

[0051] The present application also proposes an air-conditioning system, which includes a coil heat exchanger 100. The specific structure of the coil heat exchanger 100 refers to the above embodiment. Since the present air-conditioning system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0052] In one embodiment, the exhaust end 172 of the exhaust pipe 170 extends downward to the lowest height of the air-conditioning system (excluding the exhaust pipe 170), that is, the exhaust valve 173 is located at the lowest height of the air-conditioning system (excluding the exhaust pipe 170).

[0053] It can be understood that the exhaust end 172 of the exhaust pipe 170 can also extend downward to the bottom of the air-conditioning system (excluding the exhaust pipe 170), so that the operator can reach the exhaust valve 173 without the assistance of tools such as ladders, thereby quickly opening or closing the exhaust valve 173.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coil heat exchanger, characterized in that: include: Coil assembly; A header assembly, comprising an inlet pipe and an outlet pipe, wherein the inlet pipe, the coil assembly and the outlet pipe are sequentially connected to form a flow path; The exhaust pipe has an interface end and an exhaust end, wherein the interface end is communicated with the upper portion of the flow path, the exhaust end extends downward from the interface end to a preset working height, and the exhaust end is provided with an exhaust valve.

2. The coil heat exchanger according to claim 1, characterized in that The interface end is communicated with the upper end of the water outlet pipe.

3. The coil heat exchanger according to claim 2, characterized in that The preset operating height is consistent with the position height corresponding to the lower end of the coil assembly.

4. The coil heat exchanger according to claim 1, wherein The coil heat exchanger further includes a first water receiving pan, which is arranged below the exhaust pipe and is used to receive water vapor discharged from the exhaust pipe.

5. The coil heat exchanger according to claim 4, characterized in that The coil assembly, the water inlet pipe and the water outlet pipe are arranged above the first water receiving tray, and the first water receiving tray is also used to receive condensed water on the coil assembly, the water inlet pipe and the water outlet pipe.

6. The coil heat exchanger according to claim 4, characterized in that The coil heat exchanger also includes a second water receiving pan, the coil assembly includes a first coil and a second coil, the first water receiving pan is arranged below the second water receiving pan, the second water receiving pan is arranged below the second coil, and the second water receiving pan is used to receive condensed water on the second coil.

7. The coil heat exchanger according to claim 6, characterized in that The first coil and the second coil each include a plurality of branch pipes arranged in parallel, and both ends of each branch pipe are respectively connected to the water inlet pipe and the water outlet pipe.

8. The coil heat exchanger according to claim 1, wherein: The coil heat exchanger also includes two end plates respectively arranged at both ends of the coil assembly in the width direction, and two support plates respectively arranged at both ends of the coil assembly in the height direction. The two end plates and the two support plates together form a fixed frame, and the coil assembly is arranged in the fixed frame.

9. An air conditioning system, characterized in that: The invention comprises the coil heat exchanger according to any one of claims 1 to 8.

10. The air conditioning system according to claim 9, wherein: The exhaust valve is located at the lower end of the air conditioning system.

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