Hot water equipment with water pump connecting pipeline vibration isolation structure

Abstract

The utility model relates to the technical field of hot water equipment, and discloses hot water equipment with a water pump connecting pipeline vibration isolation structure, which comprises a water inlet pipe joint, a water pump water inlet pipe, an equipment shell and a driving side anti-vibration pad, the driving side anti-vibration pad is clamped between the water inlet end of the water pump water inlet pipe and the equipment shell; the water inlet pipe connector is located on the outer side of the equipment shell and is in sealed connection with the water inlet end of the water pump water inlet pipe. The active side anti-vibration pad is arranged between the water pump water inlet pipe and the inner side wall of the equipment shell and used for dissipating the vibration quantity on the reverse flow path of the water pump water inlet pipe and the equipment shell and weakening the single-frequency noise peak value of water; and meanwhile, the resonance problem caused by the fact that vibration of the water pump in circulation operation is transferred to the equipment shell through the water pump water inlet pipe is effectively eliminated, compound noise generated by harmonic vibration is avoided, and the smoothness of the gas water heater during working and the comfort of a user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water equipment, in particular to a hot water equipment with a water pump connecting pipeline vibration isolation structure. Background Art

[0002] With the trend toward smaller housing structures and the widespread adoption of silent operation, the smoothness of gas water heater sound has become a key indicator for comprehensively evaluating the user comfort of a gas water heater. The water pump, a key component of a gas water heater, exhibits a single-frequency peak structure-borne noise source within the 400Hz-2000Hz acoustic spectrum. This noise is primarily transmitted through the pump's front and rear inlet and outlet pipes and the pump's mounting limits, making it easily detectable by users. Currently, the primary approach to addressing water pump noise in the gas water heater industry involves installing a resistive muffler and a vibration-damping rubber mount at the pump's outlet.

[0003] In the prior art, Figure 1 As shown, the impedance muffler 2 is installed at the rear end of the water outlet of the water inlet pump 1. The impedance muffler 2 attenuates the vibration transmitted from the water inlet pump 1 to the water tank to a certain extent. The water pump vibration-damping rubber base 3 is arranged between the water inlet pump 1 and the casing of the whole machine to attenuate the vibration of the water inlet pump 1 to the casing of the whole machine. However, the vibration of the water inlet pump 1 can still be transmitted to the bottom shell 4 through the front end of the water pump water inlet and transferred to other structures, causing harmonic vibration of other structures to produce composite noise. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a hot water device with a water pump connecting pipe vibration isolation structure, wherein the water pump connecting pipe vibration isolation structure can effectively solve the vibration transmitted from the water pump to the device casing through the water inlet end, and has a better vibration reduction effect.

[0005] The above technical problems are solved by the following technical solutions:

[0006] A hot water device with a water pump connecting pipe vibration isolation structure, comprising:

[0007] A water inlet pipe joint, a water pump water inlet pipe, an equipment housing and an active side vibration damping pad, wherein the water inlet end of the water pump water inlet pipe is fixedly mounted on the inner side wall of the equipment housing, and the active side vibration damping pad is clamped between the water inlet end of the water pump water inlet pipe and the equipment housing; the water inlet pipe joint is located on the outside of the equipment housing and is sealed with the water inlet end of the water pump water inlet pipe.

[0008] Compared with the background technology, the hot water device with a water pump connecting pipe vibration isolation structure of the present invention has the following beneficial effects:

[0009] The utility model provides an active side vibration damping pad between the water pump inlet pipe and the inner side wall of the equipment housing to dissipate the vibration in the reverse flow path of the water pump inlet pipe and the equipment housing, weakening the peak of the single-frequency water noise. At the same time, it effectively eliminates the resonance problem caused by the vibration of the water pump during circulation operation being transferred to the equipment housing through the water pump inlet pipe, avoiding the composite noise generated by harmonic vibration, thereby reducing the sound pressure level of the entire water heating equipment during operation, improving the smoothness of the water heating equipment during operation and user comfort. In addition, the water inlet pipe joint is sealed with the water inlet end of the water pump inlet pipe, so that the incoming water can enter the water pump through the water inlet pipe joint and the water pump inlet pipe, and then enter the heat exchanger.

[0010] In one embodiment, the water inlet end of the water pump inlet pipe is provided with a connecting seat, and the water inlet end of the water pump inlet pipe is fixedly installed on the inner wall of the equipment housing through the connecting seat; the active side vibration damping pad is arranged between the connecting seat and the equipment housing.

[0011] In one embodiment, the water heating device further includes a passive side vibration damping pad; the water inlet pipe joint is fixedly mounted on the outer side wall of the device housing; the passive side vibration damping pad is clamped between the water inlet pipe joint and the device housing.

[0012] In one embodiment, the water inlet pipe joint is provided with a connecting flange, and the water inlet pipe joint is fixedly mounted on the outer wall of the equipment housing through the connecting flange; the passive side vibration damping pad is provided between the connecting flange and the equipment housing.

[0013] In one embodiment, the water heating device further includes a first connecting assembly, and the connecting flange is fixedly mounted on the outer wall of the device housing through the first connecting assembly so that the passive side vibration damping pad is clamped between the water inlet pipe joint and the device housing.

[0014] In one embodiment, the first connecting assembly includes at least two connecting bolts; the connecting flange is provided with a first connecting through hole, the passive side vibration damping pad is provided with a second connecting through hole, the equipment housing is provided with a third connecting through hole, and the active side vibration damping pad is provided with a connecting threaded hole, and the connecting bolts can be sequentially passed through the first connecting through hole, the second connecting through hole and the third connecting through hole and screwed with the connecting threaded holes.

[0015] In one embodiment, a connecting groove is provided at one end of the passive side vibration damping pad close to the connecting flange, the connecting groove is adapted to the shape of the connecting flange, and the connecting flange is at least partially located in the connecting groove.

[0016] In one embodiment, the water heating device further includes a second connecting assembly, and the connecting seat is fixedly mounted on the inner wall of the device housing through the second connecting assembly to clamp the active side vibration damping pad between the connecting seat and the device housing.

[0017] In one embodiment, the active side vibration damping pad and the passive side vibration damping pad are respectively made of natural rubber, nitrile rubber, silicone rubber or neoprene rubber.

[0018] In one embodiment, the hot water equipment is a gas water heater or a wall-mounted heating boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of a hot water device provided by the prior art;

[0021] Figure 2 This is an exploded schematic diagram of the water pump connecting pipe vibration isolation structure and its matching equipment housing provided by a specific embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the matching structure of the active side vibration damping pad, the passive side vibration damping pad and the equipment shell of the water heating equipment provided by the specific embodiment of the present utility model.

[0023] Description of labels:

[0024] 1. Water inlet pump; 2. Impedance muffler; 3. Vibration-damping rubber base; 4. Bottom shell;

[0025] 110, equipment housing; 111, second avoidance hole; 112, third connecting hole; 120, water inlet pipe joint; 121, connecting flange; 122, first connecting hole; 130, water pump; 131, water pump inlet pipe; 132, connecting seat;

[0026] 210, active side vibration damping pad; 211, third avoidance hole; 212, connecting threaded hole; 220, passive side vibration damping pad; 221, first avoidance hole; 222, connecting groove;

[0027] 300, connecting bolts;

[0028] 410. Heat exchanger; 420. Pipe silencer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the description of this application, it should be understood that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] like Figure 2 and Figure 3 As shown, this embodiment provides a hot water equipment with a water pump connecting pipe vibration isolation structure, which includes a water inlet pipe joint 120, a water pump water inlet pipe 131, an equipment housing 110 and an active side vibration damping pad 210. The water inlet end of the water pump water inlet pipe 131 is fixedly installed on the inner wall of the equipment housing 110, and the active side vibration damping pad 210 is clamped between the water inlet end of the water pump water inlet pipe 131 and the equipment housing 110; the water inlet pipe joint 120 is located on the outside of the equipment housing 110 and is sealed with the water inlet end of the water pump water inlet pipe 131.

[0034] An active side vibration damping pad 210 is provided between the water pump inlet pipe 131 and the inner side of the equipment housing 110 to dissipate the vibration on the countercurrent path of the water pump inlet pipe 131 and the equipment housing 110, thereby weakening the peak of the single-frequency water noise. At the same time, the resonance problem caused by the vibration of the water pump 130 during circulation operation being transferred to the equipment housing 110 through the water pump inlet pipe 131 is effectively eliminated, and the composite noise generated by harmonic vibration is avoided, thereby reducing the sound pressure level of the entire water heating equipment during operation, and improving the smoothness of the water heating equipment during operation and the comfort of users.

[0035] In this embodiment, the water pump inlet pipe 131 is provided with a connecting seat 132, and the active-side vibration damping pad 210 is disposed between the connecting seat 132 and the inner side of the device housing 110. The water inlet end of the water pump inlet pipe 131 is fixedly mounted to the inner sidewall of the device housing 110 via the connecting seat 132. The active-side vibration damping pad 210 is disposed between the connecting seat 132 and the device housing 110. The provision of the connecting seat 132 facilitates the connection between the water pump inlet pipe 131 and the device housing 110.

[0036] Furthermore, the hot water device also includes a passive side vibration damping pad 220; the water inlet pipe joint 120 is fixedly installed on the outer wall of the device housing 110; and the passive side vibration damping pad 220 is clamped between the water inlet pipe joint 120 and the device housing 110.

[0037] By installing the passive vibration damping pad 220 between the outside of the equipment housing 110 and the water inlet pipe joint 120, together with the active vibration damping pad 210 and the equipment housing 110, a soft-hard-soft structure is formed. This helps dissipate the vibration of the water pump 130 along the reverse flow path between its water inlet end, the water inlet pipe joint 120, and the equipment housing 110, weakening the peak of the single-frequency water noise. At the same time, it effectively eliminates the resonance caused by the vibration of the water pump 130 during circulation operation being transferred to the equipment housing 110 through the water inlet pipe joint 120, avoiding the composite noise generated by harmonic vibration, thereby reducing the sound pressure level of the gas water heater during operation, improving the smoothness of the gas water heater during operation and user comfort.

[0038] Optionally, the passive-side vibration damping pad 220 is provided with a first avoidance hole 221, the device housing 110 is provided with a second avoidance hole 111, and the active-side vibration damping pad 210 is provided with a third avoidance hole 211. The first avoidance hole 221, the second avoidance hole 111, and the third avoidance hole 211 are all connected to allow the water inlet pipe joint 120 to communicate with the water pump inlet pipe 131. By providing avoidance holes in the active-side vibration damping pad 210, the device housing 110, and the passive-side vibration damping pad 220, the incoming water can enter the water pump 130 through the water inlet pipe joint 120 and the water pump inlet pipe 131, and then enter the heat exchanger 410.

[0039] Furthermore, the active side vibration damping pad 210 has a first preset compression amount when installed, and the passive side vibration damping pad 220 has a second preset compression amount when installed. The setting of the preset compression amount is conducive to ensuring the stiffness of the vibration damping pad, thereby ensuring that both the active side vibration damping pad 210 and the passive side vibration damping pad 220 have good vibration damping properties.

[0040] Exemplarily, the first preset compression amount and the second preset compression amount are both set to 10%-15%. It is understandable that the system stiffness of the vibration reduction system is related to the stiffness of the active side vibration reduction pad 210 and the passive side vibration reduction pad 220, and the stiffness of the active side vibration reduction pad 210 and the passive side vibration reduction pad 220 is related to their initial compression amount. Therefore, a suitable initial compression amount can effectively ensure the stiffness of the vibration reduction system. At the same time, in order to improve the stiffness of the vibration reduction system, the first preset compression amount and the second preset compression amount can be adaptively increased. It is worth noting that the stiffness of the active side vibration reduction pad 210 and the passive side vibration reduction pad 220 is also related to their material, elasticity, structural form, etc. Those skilled in the art can set it according to actual needs, and no specific limitation is made here.

[0041] In this embodiment, the active side vibration damping pad 210 and the passive side vibration damping pad 220 are made of rubber material, which has the advantages of compact structure, good flexibility, and adjustable three-dimensional stiffness. Specifically, they can be made of natural rubber, nitrile rubber, silicone or chloroprene rubber.

[0042] Specifically, the water inlet pipe joint 120 is provided with a connecting flange 121, and the water inlet pipe joint 120 is fixedly mounted to the outer wall of the device housing 110 via the connecting flange 121; the passive side vibration damping pad 220 is provided between the connecting flange 121 and the outer side of the device housing 110. The provision of the connecting flange 121 facilitates the connection between the water inlet pipe joint 120 and the device housing 110.

[0043] Furthermore, the water pump connecting pipe vibration isolation structure also includes a first connecting component, and the connecting flange 121 is fixedly installed on the outer wall of the equipment housing 110 through the first connecting component, which is used to clamp the passive side vibration damping pad 220 between the water inlet pipe joint 120 and the equipment housing 110.

[0044] Specifically, the first connecting assembly includes a connecting bolt 300, the connecting flange 121 is provided with a first connecting through-hole 122, the passive-side vibration damping pad 220 is provided with a second connecting through-hole, the device housing 110 is provided with a third connecting through-hole 112, and the active-side vibration damping pad 210 is provided with a connecting threaded hole 212. The connecting bolt 300 can be sequentially inserted into the first connecting through-hole 122, the second connecting through-hole, and the third connecting through-hole 112 and threadedly engaged with the connecting threaded hole 212. By configuring the first connecting assembly as the connecting bolt 300, connection is more convenient; at the same time, connecting from the outside of the device housing 110 provides greater operating space. It is understood that providing two or more connecting bolts 300 improves connection reliability while limiting circumferential rotation of the vibration damping system. By cooperating with the first connecting assembly through the connecting bolt 300, the active side vibration damping pad 210, the equipment housing 110, the passive side vibration damping pad 220 and the connecting flange 121 can be connected together, effectively limiting the radial movement and circumferential rotation of the above structure, so that the active side vibration damping pad 210, the equipment housing 110, the passive side vibration damping pad 220 and the connecting flange 121 can only be compressed along their axial direction, that is, a single degree of freedom vibration damping system is formed, and the vibration damping effect is better.

[0045] Furthermore, the water pump connecting pipeline vibration isolation structure also includes a second connecting component, and the connecting seat 132 is fixedly installed on the inner wall of the equipment housing 110 through the second connecting component to clamp the active side vibration damping pad 210 between the connecting seat 132 and the equipment housing 110. The second connecting component and the connecting seat 132 are used to connect the water pump inlet pipe 131 and the active side vibration damping pad 210, thereby realizing the installation of the water pump inlet pipe 131 on the inside of the equipment housing 110. Optionally, the second connecting component is configured as a mounting bolt, the connecting seat 132 is provided with a mounting through hole, the active side vibration damping pad 210 is provided with a mounting threaded hole, and the mounting bolt is passed through the mounting through hole and threadedly connected to the mounting threaded hole. Four mounting bolts are provided along the circumference of the connecting seat 132 to improve the reliability of the installation of the water pump inlet pipe 131.

[0046] Preferably, a connecting groove 222 is provided at one end of the passive-side vibration damping pad 220 near the connecting flange 121. The connecting groove 222 matches the shape of the connecting flange 121, and the connecting flange 121 is at least partially located in the connecting groove 222. The provision of the connecting groove 222 can provide positioning for the installation of the connecting flange 121 and enhance the seal between the passive-side vibration damping pad 220 and the connecting flange 121. The first avoidance hole 221 and the second connecting through-hole are provided at the bottom of the connecting groove 222. Optionally, a groove that matches the shape of the connecting seat 132 is also provided on the active-side vibration damping pad 210, and the connecting seat 132 can be at least partially located in the groove.

[0047] In other embodiments, the active side vibration damping pad 210 is integrated with the water pump inlet pipe 131; the passive side vibration damping pad 220 is integrated with the water inlet pipe connector 120. By integrating them, the reliability of the connection between the two and the sealing performance between the two can be improved.

[0048] The hot water device is a gas water heater or a wall-mounted heating boiler. By providing the aforementioned water pump connection pipe vibration isolation structure, the gas water heater or wall-mounted heating boiler effectively attenuates the vibration transmitted from the water pump inlet pipe 131 to the device housing 110, optimizes the single-frequency peak noise of the water pump 130, and reduces resonance caused by the device housing 110. This makes the gas water heater or wall-mounted heating boiler quieter and smoother during operation, thereby making the user experience more comfortable. Furthermore, the gas water heater or wall-mounted heating boiler also provides a pipe silencer 420 between the water outlet of the water pump 130 and the heat exchanger 410 to attenuate the vibration of the water outlet of the water pump 130 during operation, making the gas water heater quieter during operation. Specifically, the pipe silencer 420 is provided on the pipe, and its flow cross-sectional area is larger than the flow cross-sectional area of ​​the pipe connected to the water outlet of the water pump 130. In this way, the water flow noise generated by the vibration of the pipe caused by the water shock wave when the water outlet pressure of the water pump 130 is high can be reduced.

[0049] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features 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.

[0050] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A water heating device with a water pump connecting pipe vibration isolation structure, characterized in that: include: A water inlet pipe joint (120), a water pump water inlet pipe (131), an equipment housing (110), and an active side vibration damping pad (210); the water inlet end of the water pump water inlet pipe (131) is fixedly mounted on the inner side wall of the equipment housing (110); the active side vibration damping pad (210) is sandwiched between the water inlet end of the water pump water inlet pipe (131) and the equipment housing (110); the water inlet pipe joint (120) is located outside the equipment housing (110) and is sealed and connected to the water inlet end of the water pump water inlet pipe (131).

2. The water heating device according to claim 1, characterized in that: The water inlet end of the water pump inlet pipe (131) is provided with a connecting seat (132), and the water inlet end of the water pump inlet pipe (131) is fixedly mounted on the inner side wall of the equipment housing (110) through the connecting seat (132); the active side vibration damping pad (210) is provided between the connecting seat (132) and the equipment housing (110).

3. The water heating device according to claim 2, characterized in that: The water heater further comprises a passive side vibration damping pad (220); the water inlet pipe joint (120) is fixedly mounted on the outer side wall of the device housing (110); and the passive side vibration damping pad (220) is sandwiched between the water inlet pipe joint (120) and the device housing (110).

4. The water heating device according to claim 3, characterized in that: The water inlet pipe joint (120) is provided with a connecting flange (121), and the water inlet pipe joint (120) is fixedly mounted on the outer side wall of the equipment housing (110) via the connecting flange (121); the passive side vibration damping pad (220) is provided between the connecting flange (121) and the equipment housing (110).

5. The water heating device according to claim 4, characterized in that: The water heater further comprises a first connecting assembly, through which the connecting flange (121) is fixedly mounted on the outer side wall of the equipment housing (110), so that the passive side vibration damping pad (220) is clamped between the water inlet pipe joint (120) and the equipment housing (110).

6. The water heating device according to claim 5, characterized in that: The first connecting assembly includes at least two connecting bolts (300); the connecting flange (121) is provided with a first connecting through hole (122), the passive side vibration damping pad (220) is provided with a second connecting through hole, the device housing (110) is provided with a third connecting through hole (112), and the active side vibration damping pad (210) is provided with a connecting threaded hole (212); the connecting bolts (300) can be sequentially passed through the first connecting through hole (122), the second connecting through hole and the third connecting through hole (112) and be screwed to the connecting threaded holes (212).

7. The water heating device according to claim 4, characterized in that: A connecting groove (222) is provided at one end of the passive side vibration damping pad (220) close to the connecting flange (121); the connecting groove (222) is adapted in shape to the connecting flange (121); and the connecting flange (121) is at least partially located in the connecting groove (222).

8. The water heating device according to claim 3, characterized in that: The active side vibration damping pad (210) and the passive side vibration damping pad (220) are respectively made of natural rubber, nitrile rubber, silica gel or chloroprene rubber.

9. The water heating device according to any one of claims 2 to 8, characterized in that: The water heater further comprises a second connecting assembly, wherein the connecting seat (132) is fixedly mounted on the inner side wall of the device housing (110) via the second connecting assembly, so as to sandwich the active side vibration damping pad (210) between the connecting seat (132) and the device housing (110).

10. The water heating device according to any one of claims 1 to 8, characterized in that: The hot water equipment is a gas water heater or a heating wall-mounted boiler.

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