Heat exchanger capable of automatically exhausting

Abstract

The utility model discloses a heat exchanger capable of exhausting air automatically, which comprises a shell component, a heat exchanger component, a heat exchanger component, a heat exchanger component and a heat exchanger component, the shell component is internally provided with a mounting cavity, and a spiral coil is arranged in the mounting cavity; the first container is connected with the spiral coil pipe and located in the mounting cavity, and at least part of the first container is located above the top of the spiral coil pipe; the exhaust valve is arranged on the shell assembly in a penetrating manner, communicates with the part, located above the top of the spiral coil pipe, of the first container and is used for exhausting gas in the first container outwards; and the sealing structure is arranged between the exhaust valve and the shell assembly. When water is input into the spiral coil pipe, gas in the spiral coil pipe can flow to the top end of the first container and then is exhausted outwards from the exhaust valve, so that the gas in the spiral coil pipe can be automatically exhausted when the heat exchanger is used for the first time, water flows smoothly and circularly, and noise and abnormal sound are avoided. In addition, the exhaust valve is installed on the shell assembly and is convenient to use and assemble, and due to the arrangement of the sealing structure, smoke leakage is avoided, and the heat exchange efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a heat exchanger capable of automatic exhaust. Background Art

[0002] Currently, heat exchangers for wall-mounted boilers include a shell assembly, a spiral heat exchange coil housed within the shell assembly, and a combustion assembly. The combustion assembly generates high-temperature flue gas that exchanges heat with the heat exchange coil, allowing the high-temperature flue gas to heat the water within the heat exchange coil. The heat exchange coil has a water inlet and outlet, which are connected to external pipes and drive a water pump to circulate the water. The inlet and outlet are connected to the external pipes to form a completely sealed closed-loop pipeline. During initial use, water needs to be added to the closed-loop pipeline. However, the presence of gas within the heat exchange coil affects the input and smooth flow of water, and can also easily cause noise or abnormal sounds.

[0003] In addition, the heat exchange coil in a general heat exchanger is composed of a pipe coiled in a spiral shape, with only one water inlet and one water outlet. The water flow is limited, resulting in a small heating power of the heat exchanger, which is not suitable for use scenarios with high system power requirements. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention aims to provide a heat exchanger with automatic exhaust, which can automatically exhaust the gas in the heat exchange coil during initial use, allowing the water to circulate smoothly and avoiding abnormal noise.

[0005] According to an embodiment of the present invention, the automatically exhaustable heat exchanger includes: a shell assembly, the interior of the shell assembly has an installation cavity, and a spiral coil is provided in the installation cavity; a first container, connected to the spiral coil, is located in the installation cavity, and the first container is at least partially located above the top of the spiral coil; an exhaust valve is provided in the shell assembly and is connected to the part of the first container located above the top of the spiral coil, and is used to discharge the gas in the first container to the outside; a sealing structure is provided between the exhaust valve and the shell assembly.

[0006] The heat exchanger capable of automatic exhaust according to the embodiment of the present utility model has at least the following beneficial effects:

[0007] When water is fed into the spiral coil, the gas within it flows to the top of the first container and is then discharged outward through the exhaust valve. This automatically vents the gas within the spiral coil during initial use of the heat exchanger, ensuring smooth water circulation and preventing unusual noise. Furthermore, the exhaust valve is mounted on the housing assembly for easy use and assembly, and the sealing structure prevents smoke leakage, ensuring heat exchange efficiency and protecting the environment.

[0008] In some embodiments of the present invention, a through hole is provided on the top of the shell assembly, and the first container is provided with an exhaust pipe passing through the through hole and out of the shell assembly. The sealing structure includes a first tightening member and a second tightening member spaced apart in upper and lower directions on the outer periphery of the exhaust pipe. The first tightening member and the second tightening member jointly clamp the wall panel of the shell assembly where the through hole is located. The first tightening member and / or the second tightening member can completely block the through hole and seal the gap between the exhaust pipe and the through hole.

[0009] In some embodiments of the present invention, the outer periphery of the exhaust pipe is provided with a connecting pipe sleeve extending from its upper end, the first tightening member is formed at the lower end of the connecting pipe sleeve, and the exhaust valve is installed on the inner periphery of the upper end of the connecting pipe sleeve.

[0010] In some embodiments of the present invention, a narrow-mouth channel is provided in the middle position of the interior of the connecting pipe sleeve, and the connecting pipe sleeve is provided with a first threaded pipe section and a second threaded pipe section at the upper and lower ends of the narrow-mouth channel respectively, the exhaust valve is threadedly connected to the first threaded pipe section, the outer periphery of the exhaust pipe has an external thread that matches the second threaded pipe section, the upper end of the exhaust pipe is inserted into the narrow-mouth channel, and a first sealing ring is provided between the upper end of the exhaust pipe and the narrow-mouth channel.

[0011] In some embodiments of the present invention, two opposite sides of the outer peripheral wall of the connecting sleeve are inwardly recessed to form planar recesses.

[0012] In some embodiments of the present invention, the first pressing member and / or the second pressing member are threadedly connected to the exhaust pipe so that the first pressing member and the second pressing member are close to each other to clamp the housing assembly.

[0013] In some embodiments of the present invention, the first tightening member and the second tightening member are both in the shape of an annular plate, the exhaust pipe has an external thread, the first tightening member and the second tightening member are both provided with an internal threaded hole matching the external thread, and the first tightening member and / or the second tightening member are provided with a second sealing ring arranged around the through hole on the surface facing the shell assembly.

[0014] In some embodiments of the present invention, the spiral coil includes a plurality of spiral pipe segments arranged sequentially along its length, one end of the spiral pipe segment is located at its top to connect to the first container, and the other end of the spiral pipe segment is located at its bottom to connect to the water inlet or water outlet, at least one end of the spiral pipe segment is connected to the water inlet, and at least one end of the spiral pipe segment is connected to the water outlet.

[0015] In some embodiments of the present invention, the number of the spiral pipe segments is 2N, N≥2, N is a positive integer, one end of the N sequentially arranged spiral pipe segments is connected to the water inlet pipe port, and one end of the remaining N sequentially arranged spiral pipe segments is connected to the water outlet pipe port.

[0016] In some embodiments of the present invention, one end of the bottom of all the spiral pipe segments is connected to a water storage box, and a partition is provided in the water storage box to divide its internal space into a water inlet area and a water outlet area, the water inlet pipe port and the water outlet pipe port are connected to the water inlet area and the water outlet area respectively, one end of N sequentially arranged spiral pipe segments is connected to the water inlet area, and one end of the remaining N sequentially arranged spiral pipe segments is connected to the water outlet area.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of an embodiment of a heat exchanger capable of automatic exhaust according to the present utility model;

[0020] Figure 2 for Figure 1 A schematic cross-sectional view of an embodiment;

[0021] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A;

[0022] Figure 4 for Figure 1 Schematic cross-sectional view of the bottom of the embodiment.

[0023] Reference numerals:

[0024] Shell assembly 100; spiral coil 200; spiral pipe section 210; first container 300; exhaust valve 400; sealing structure 500; first tightening member 510; second tightening member 520; exhaust pipe 600; connecting pipe sleeve 700; narrow-mouth channel 710; first threaded pipe section 720; second threaded pipe section 730; first sealing ring 740; planar recess 750; second sealing ring 800; water inlet pipe port 910; water outlet pipe port 920; water storage box 930; partition 940; water inlet area 950; water outlet area 960. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] See also Figures 1 to 4The heat exchanger with automatic exhaust of the present invention includes: a shell component 100, the interior of the shell component 100 has an installation cavity, and the installation cavity is provided with a spiral coil 200; a first container 300, which is connected to the spiral coil 200 and is located in the installation cavity, and the first container 300 is at least partially located above the top of the spiral coil 200; an exhaust valve 400, which passes through the shell component 100 and is connected to the part of the first container 300 located above the top of the spiral coil 200, and is used to discharge the gas in the first container 300 to the outside; a sealing structure 500, which is provided between the exhaust valve 400 and the shell component 100.

[0030] When water is introduced into the spiral coil 200, the gas within the spiral coil 200 flows to the top of the first container 300 and is then discharged outward through the exhaust valve 400. This automatically discharges the gas within the spiral coil 200 during initial use of the heat exchanger, ensuring smooth water circulation and preventing any noise. Furthermore, the exhaust valve 400 is mounted on the housing assembly 100 for ease of use, assembly, and maintenance. The sealing structure 500 prevents smoke leakage, ensuring heat exchange efficiency and protecting the environment.

[0031] See also Figures 1 to 3 In some embodiments of the present invention, a perforation is formed at the top of the housing assembly 100, and the first container 300 is provided with an exhaust pipe 600 extending from the housing assembly 100 through the perforation. The sealing structure 500 includes a first pressing member 510 and a second pressing member 520 spaced apart from each other and arranged on the periphery of the exhaust pipe 600. The first pressing member 510 and the second pressing member 520 jointly clamp the wall panel of the housing assembly 100 where the perforation is located. The first pressing member 510 and / or the second pressing member 520 can completely block the perforation and seal the gap between the exhaust pipe 600 and the perforation. It is understood that the first pressing member 510 and the second pressing member 520 approach each other to clamp the housing assembly 100 at the peripheral edge of the perforation, thereby achieving the installation and fixation of the exhaust valve 400. When the first tightening member 510 and the second tightening member 520 jointly clamp the shell assembly 100 located at the peripheral edge of the perforation, the first tightening member 510 completely blocks the perforation, or the second tightening member 520 completely blocks the perforation, or the first tightening member 510 and the second tightening member 520 completely block the perforation, which all help to seal the gap between the exhaust pipe 600 and the perforation.

[0032] See also Figure 3In some embodiments of the present invention, a connecting sleeve 700 is provided on the outer periphery of the exhaust pipe 600, extending from its upper end. The first pressing member 510 is formed at the lower end of the connecting sleeve 700, and the exhaust valve 400 is mounted on the inner periphery of the upper end of the connecting sleeve 700. That is, the upper and lower ends of the connecting sleeve 700 are connected to the exhaust pipe 600 and the exhaust valve 400, respectively. Compared to directly connecting the exhaust valve 400 to the exhaust pipe 600, there is no need to directly provide a connecting structure between the exhaust pipe 600 and the exhaust valve 400, thereby reducing manufacturing difficulty.

[0033] See also Figure 3 In some embodiments of the present invention, a narrow passage 710 is provided in the central portion of the connecting pipe sleeve 700. A first threaded pipe section 720 and a second threaded pipe section 730 are provided at the upper and lower ends of the narrow passage 710, respectively. The exhaust valve 400 is threadedly connected to the first threaded pipe section 720. The outer periphery of the exhaust pipe 600 has external threads that mate with the second threaded pipe section 730. The upper end of the exhaust pipe 600 is inserted into the narrow passage 710, and a first sealing ring 740 is provided between the upper end of the exhaust pipe 600 and the narrow passage 710. It should be noted that an existing exhaust valve 400 has a threaded structure that mates with the first threaded pipe section 720. Connecting the exhaust valve 400 to the first threaded pipe section 720 eliminates the need to modify the exhaust valve 400, facilitating assembly. The exhaust pipe 600 and the second threaded pipe section 730 are also easily assembled. The provision of the first sealing ring 740 can prevent gas from generating turbulent flow in the connecting pipe sleeve 700 , and is conducive to guiding the gas to be transported to the exhaust valve 400 in an orderly manner.

[0034] See also Figure 1 In some embodiments of the present invention, in order to facilitate users to use tools such as wrenches and pliers to drive the connecting sleeve 700 to rotate and avoid slipping, the outer peripheral walls of the connecting sleeve 700 are recessed inward on opposite sides to form planar recesses 750.

[0035] See also Figure 3In some embodiments of the present invention, the first pressing member 510 and / or the second pressing member 520 are threadedly connected to the exhaust pipe 600 so that the first pressing member 510 and the second pressing member 520 are brought into proximity with each other to clamp the housing assembly 100. It is understood that the threaded movement of at least one of the first pressing member 510 and the second pressing member 520 relative to the exhaust pipe 600 can achieve the purpose of clamping the housing assembly 100 located at the outer peripheral edge of the perforation, thereby achieving the installation and fixation of the exhaust valve 400 and maintaining the airtightness of the housing assembly 100. Of course, in other embodiments, the first pressing member 510 and the exhaust pipe 600, and the second pressing member 520 and the exhaust pipe 600, can also be assembled using a snap-fit ​​connection or interference fit.

[0036] See also Figure 1 and Figure 3 In some embodiments of the present invention, the first pressing member 510 and the second pressing member 520 are both in the shape of an annular plate, the exhaust pipe 600 has an external thread, and the first pressing member 510 and the second pressing member 520 are both provided with an internal threaded hole that matches the external thread. A second sealing ring 800 is provided on the surface of the first pressing member 510 and / or the second pressing member 520 facing the housing assembly 100, surrounding the perforation. It can be understood that the first pressing member 510 and the second pressing member 520 are both in the shape of an annular plate and can both completely block the perforation, reducing the possibility of smoke escaping from the housing assembly 100. The provision of the second sealing ring 800 between at least one of the first pressing member 510 and the second pressing member 520 and the surface of the housing assembly 100 can ensure the airtightness of the exhaust pipe 600 passing through the perforation. Specifically, during assembly, the second tightening member 520 is first screwed to abut against the inner wall of the shell assembly 100, and then the first tightening member 510 is screwed to abut against the outer wall of the shell assembly 100 to prevent the exhaust pipe 600 from moving relative to the through hole.

[0037] See also Figure 2 and Figure 4In some embodiments of the present invention, the spiral coil 200 includes a plurality of spiral pipe segments 210 sequentially arranged along its length. One end of each spiral pipe segment 210 is located at the top of the spiral pipe segment 210 to communicate with the first container 300, and the other end of each spiral pipe segment 210 is located at the bottom of the spiral pipe segment 210 to communicate with the water inlet 910 or the water outlet 920. At least one end of the spiral pipe segment 210 is connected to the water inlet 910, and at least one end of the spiral pipe segment 210 is connected to the water outlet 920. It is understood that after external water enters the corresponding spiral pipe segment 210 from the water inlet 910, it drives the gas and water inside the spiral pipe segment 210 to flow into the first container 300. The various spiral pipe segments 210 are interconnected through the first container 300, which can shorten the time it takes for the gas to be discharged to the exhaust valve 400, facilitating rapid and clean gas discharge.

[0038] See also Figure 4 In some embodiments of the present invention, the number of the spiral pipe segments 210 is 2N, where N ≥ 2 and N is a positive integer. One end of the N sequentially arranged spiral pipe segments 210 is connected to the water inlet pipe 910, and one end of the remaining N sequentially arranged spiral pipe segments 210 is connected to the water outlet pipe 920. It can be understood that the external water source synchronously enters the N sequentially arranged spiral pipe segments 210 from the water inlet pipe 910, and the N spiral pipe segments 210 simultaneously input water into the first container 300. Then, the water in the first container 300 simultaneously enters the remaining N sequentially arranged spiral pipe segments 210, and finally is synchronously discharged from the water outlet pipe 920, thereby realizing the parallel connection of multiple spiral pipe segments 210 to form a spiral coil 200, which is conducive to increasing the flow rate and is suitable for heat exchangers with large heating power.

[0039] See also Figure 4 In some embodiments of the present invention, in order to make the water inlet and outlet more orderly and stable, one end of the bottom of all the spiral pipe segments 210 is connected to the water storage box 930, and the water storage box 930 is provided with a partition 940 that divides its internal space into a water inlet area 950 and a water outlet area 960. The water inlet pipe port 910 and the water outlet pipe port 920 are respectively connected to the water inlet area 950 and the water outlet area 960, one end of the N spiral pipe segments 210 arranged in sequence is connected to the water inlet area 950, and one end of the remaining N spiral pipe segments 210 arranged in sequence is connected to the water outlet area 960.

[0040] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchanger with automatic exhaust, characterized in that: include: A housing assembly (100), wherein the housing assembly (100) has an installation cavity inside, and a spiral coil (200) is arranged in the installation cavity; a first container (300) connected to the spiral coil (200) and located within the installation cavity, wherein the first container (300) is at least partially located above the top of the spiral coil (200); an exhaust valve (400), which is provided through the housing assembly (100) and is in communication with a portion of the first container (300) located above the top of the spiral coil (200), and is used to discharge the gas in the first container (300) to the outside; A sealing structure (500) is provided between the exhaust valve (400) and the housing assembly (100).

2. The heat exchanger capable of automatic exhaust according to claim 1, characterized in that: The shell assembly (100) is provided with a through-hole at the top, the first container (300) is provided with an exhaust pipe (600) passing through the through-hole and out of the shell assembly (100), the sealing structure (500) comprises a first pressing member (510) and a second pressing member (520) which are arranged at an upper and lower interval on the outer periphery of the exhaust pipe (600), the first pressing member (510) and the second pressing member (520) jointly clamping the wall panel of the shell assembly (100) where the through-hole is located, and the first pressing member (510) and / or the second pressing member (520) can completely block the through-hole and seal the gap between the exhaust pipe (600) and the through-hole.

3. The heat exchanger capable of automatic exhaust according to claim 2, characterized in that: The outer periphery of the exhaust pipe (600) is provided with a connecting pipe sleeve (700) extending from its upper end, the first pressing member (510) is formed at the lower end of the connecting pipe sleeve (700), and the exhaust valve (400) is installed on the inner periphery of the upper end of the connecting pipe sleeve (700).

4. The heat exchanger capable of automatic exhaust according to claim 3, characterized in that: A narrow passage (710) is provided at the middle position of the interior of the connecting pipe sleeve (700), and a first threaded pipe section (720) and a second threaded pipe section (730) are provided at the upper and lower ends of the narrow passage (710) of the connecting pipe sleeve (700), respectively. The exhaust valve (400) is threadedly connected to the first threaded pipe section (720), and the outer periphery of the exhaust pipe (600) has an external thread that matches the second threaded pipe section (730). The upper end of the exhaust pipe (600) is inserted into the narrow passage (710), and a first sealing ring (740) is provided between the upper end of the exhaust pipe (600) and the narrow passage (710).

5. The heat exchanger capable of automatic exhaust according to claim 4, characterized in that: Two opposite sides of the outer peripheral wall of the connecting pipe sleeve (700) are inwardly recessed to form planar recesses (750).

6. The automatically vented heat exchanger according to claim 2, characterized in that: The first pressing member (510) and / or the second pressing member (520) are threadedly connected to the exhaust pipe (600) so that the first pressing member (510) and the second pressing member (520) are brought close to each other to clamp the housing assembly (100).

7. The automatically vented heat exchanger according to claim 6, characterized in that: The first pressing member (510) and the second pressing member (520) are both in the shape of circular ring plates, the exhaust pipe (600) has an external thread, the first pressing member (510) and the second pressing member (520) are both provided with internal thread holes matching the external thread, and a second sealing ring (800) arranged around the perforation is provided on the surface of the first pressing member (510) and / or the second pressing member (520) facing the shell assembly (100).

8. The automatically vented heat exchanger according to claim 1, characterized in that: The spiral coil (200) comprises a plurality of spiral pipe segments (210) sequentially arranged along its length direction; one end of the spiral pipe segment (210) is located at its top to connect with the first container (300); the other end of the spiral pipe segment (210) is located at its bottom to connect with the water inlet (910) or the water outlet (920); at least one end of the spiral pipe segment (210) is connected with the water inlet (910), and at least one end of the spiral pipe segment (210) is connected with the water outlet (920).

9. The automatically vented heat exchanger according to claim 8, characterized in that: The number of the spiral pipe segments (210) is 2N, N≥2, and N is a positive integer. One end of the N sequentially arranged spiral pipe segments (210) is connected to the water inlet pipe port (910), and one end of the remaining N sequentially arranged spiral pipe segments (210) is connected to the water outlet pipe port (920).

10. The automatically vented heat exchanger according to claim 9, characterized in that: One end of the bottom of all the spiral pipe segments (210) is connected to the water storage box (930). A partition (940) is provided in the water storage box (930) to divide its internal space into a water inlet area (950) and a water outlet area (960). The water inlet pipe port (910) and the water outlet pipe port (920) are connected to the water inlet area (950) and the water outlet area (960) respectively. One end of N sequentially arranged spiral pipe segments (210) is connected to the water inlet area (950), and one end of the remaining N sequentially arranged spiral pipe segments (210) is connected to the water outlet area (960).

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