A wall-mounted boiler

Abstract

A wall-mounted boiler, comprising a bottom shell, a fan assembly, a gas valve, a combustion chamber, a burner, a heat exchanger, a water inlet valve, a water pump, a heating hot water pipe, a heating water joint, a domestic water inlet pipe and a domestic water hot water outlet pipe. The heating part of the water inlet valve, the water pump, the heating heat exchange pipeline, the heating hot water pipe and the heating water joint are sequentially connected to form a heating pipeline. The domestic water part of the water inlet valve, the domestic water inlet pipe, the domestic water heat exchange pipeline and the domestic water hot water outlet pipe are sequentially connected to form a domestic water pipeline. The fan assembly is arranged at the top of the combustion chamber. A pressure relief valve is connected to the domestic water hot water outlet pipe and the heating hot water pipe and relieves the pressure of the domestic water hot water outlet pipe. Compared with the prior art, one heat exchanger is reduced, the cost is reduced, the structure is simplified, and the assembly is convenient. The water in the domestic water pipeline is in a preheated state, preventing dry burning and realizing cold-free domestic water. The pressure relief valve prevents the water pressure in the domestic water pipeline from being too high, causing water leakage, and plays a role in supplementing water for the heating pipeline.

Description

Technical Field

[0001] The present invention relates to a gas wall-mounted boiler. Background Art

[0002] In the current prior art, Chinese Patent No. 202021048632.2, a wall-mounted boiler, includes a domestic water circuit, a heating water circuit, a main heat exchanger and an auxiliary heat exchanger. The main heat exchanger is connected to the heating water circuit to heat the water flowing through the heating water circuit. The auxiliary heat exchanger is provided with a first heat exchange channel and a second heat exchange channel for heat exchange with each other. The first heat exchange channel is connected in series in the heating water circuit, and the second heat exchange channel is connected in series in the domestic water circuit. The hot water outlet end of the second heat exchange channel is communicated with a mixing tank. The cold water inlet end of the mixing tank is communicated with the domestic water inlet pipe of the domestic water circuit, and the outlet end of the mixing tank is communicated with a domestic water outlet pipe. The problems are: complex structure and high cost; when the water pressure in the water circuit exceeds the design pressure, water leakage occurs at the connection part. Summary of the Invention

[0003] The object of the present invention is to provide a wall-mounted boiler, which not only has a simple structure and low cost, but also can prevent the water pressure in the domestic water pipeline from being too high, causing water leakage; and the pressure relief replenishes water for the heating pipeline.

[0004] The present invention is realized as follows: A wall-mounted boiler, characterized in that: it includes a bottom case, a fan assembly, a gas valve, a combustion chamber, a burner, a heat exchanger, a water inlet valve, a water pump, a heating hot water pipe, a heating water joint, a domestic water inlet pipe and a domestic water hot water outlet pipe.

[0005] The heat exchanger includes a heating heat exchange pipeline, a domestic water heat exchange pipeline and heat exchange fins.

[0006] The heat exchanger is arranged inside the upper part of the combustion chamber, and the burner is arranged below the combustion chamber; the gas valve is communicated with the burner; the heating part of the water inlet valve, the water pump, the heating heat exchange pipeline, the heating hot water pipe and the heating water joint are sequentially communicated to form a heating pipeline, and the domestic water part of the water inlet valve, the domestic water inlet pipe, the domestic water heat exchange pipeline and the domestic water hot water outlet pipe are sequentially communicated to form a domestic water pipeline; the fan assembly is arranged on the top of the combustion chamber.

[0007] A pressure relief valve is communicated with the domestic water hot water outlet pipe and the heating hot water pipe and relieves the pressure of the domestic water hot water outlet pipe.

[0008] The wall-mounted boiler is characterized in that: the pressure relief valve includes a valve body, a valve cover, a pressure spring and a valve core.

[0009] The valve body has a lower opening, a body guide hole is provided at the top and a plurality of water inlet holes are arranged in the body guide hole; the valve core is provided with an upper guide rod and a lower guide rod; the valve cover is provided with a cover guide hole and a water outlet hole.

[0010] The upper guide rod is in sliding fit with the body guide hole, and the valve core is in fit with the top plate of the valve body and covers the water inlet hole; the lower guide rod passes through the pressure spring and the cover guide hole, and the valve cover is buckled with the lower opening end of the valve body.

[0011] It includes a joint.

[0012] The pressure relief valve is arranged in the joint, and the joint is communicated with the domestic hot water outlet pipe and the heating hot water pipe.

[0013] The special feature of the described wall-mounted boiler is that: the pressure relief valve is an electromagnetic valve, and a pressure sensor is arranged on the domestic water pipeline.

[0014] The special feature of the described wall-mounted boiler is that: the heating heat exchange pipeline is arranged above the domestic water heat exchange pipeline.

[0015] The special feature of the described wall-mounted boiler is that: the heating heat exchange pipeline and the domestic water heat exchange pipeline are respectively made of copper materials.

[0016] Compared with the prior art, the wall-mounted boiler of the present invention reduces one heat exchanger, reduces the cost, simplifies the structure, and is convenient for assembly; the water in the domestic water pipeline is in a preheated state, preventing dry burning and realizing no cold water for domestic water; the pressure relief valve prevents the water pressure in the domestic water pipeline from being too high, causing water leakage, and plays a role in supplementing water for the heating pipeline. Description of the Drawings

[0017] Figure 1 is the front view of the present invention.

[0018] Figure 2 is Figure 1 the partial enlarged view of.

[0019] Figure 3 is the front view of the heat exchanger of the present invention.

[0020] Figure 4 is the left view of the heat exchanger of the present invention. Detailed Embodiments

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 construed as a limitation to the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] As Figure 1 shown, a wall-mounted boiler includes a bottom shell 1, a fan assembly 2, a gas valve 3, a combustion chamber 4, a burner 5, a heat exchanger 6, a water inlet valve 7, a water pump 8, a heating hot water pipe 91, a heating water connection 92, a heating return pipe 93, a domestic water inlet pipe 101, a domestic hot water outlet pipe 102, and a pressure relief valve 11.

[0025] As Figure 3 、 Figure 4 shown, the heat exchanger 6 includes a heating heat exchange pipeline 61, a domestic water heat exchange pipeline 62, and heat exchange fins 63. The heating heat exchange pipeline 61 includes a return water end 611 and an outlet water end 612. The domestic water heat exchange pipeline 62 includes an inlet water end 621 and an outlet water end 622.

[0026] The heat exchanger 6 is arranged inside the upper part of the combustion chamber 4, and the burner 5 is arranged below the combustion chamber 4; the gas valve 3 is communicated with the burner 4; the heating part of the water inlet valve 7, the water pump 8, the heating return pipe 93, the heating heat exchange pipeline, the heating hot water pipe 91, and the heating water connection 92 are sequentially communicated to form a heating pipeline. The domestic water part of the water inlet valve 7, the domestic water inlet pipe 101, the domestic water heat exchange pipeline, and the domestic hot water outlet pipe 102 are sequentially communicated to form a domestic water pipeline; the fan assembly 2 is arranged at the top of the combustion chamber 4.

[0027] The pressure relief valve 11 is communicated with the domestic hot water outlet pipe 102 and the heating hot water pipe 91 and relieves the pressure of the domestic hot water outlet pipe 102. With the setting of the pressure relief valve, when the water pressure in the water source pipeline suddenly rises, resulting in the increase of the water pressure in the domestic water pipeline, and when the water pressure exceeds the set pressure, the water in the domestic water pipeline is discharged into the heating pipeline to relieve the pressure and supplement water to the heating pipeline.

[0028] As Figure 2As shown, the pressure relief valve 11 includes a valve body 12, a valve cover 13, a pressure spring 14, and a valve core 15.

[0029] The valve body 12 has a lower opening, a body guide hole 121 is provided at the top, and a plurality of water inlet holes 122 are provided in the body guide hole 121.

[0030] The valve core 15 is provided with an upper guide rod 151 and a lower guide rod 152; a cover guide hole 131 and a water outlet hole 132 are provided on the valve cover 13.

[0031] The upper guide rod 151 is slidably matched with the body guide hole 121, the valve core 15 is matched with the top plate of the valve body 12 and covers the water inlet holes 122; the lower guide rod 152 passes through the pressure spring 14 and the cover guide hole 131, and the valve cover 15 is buckled with the lower opening end of the valve body 12.

[0032] It includes a joint 16.

[0033] The pressure relief valve 11 is arranged in the joint 16, and the joint 16 is communicated with the domestic hot water outlet pipe 102 and the heating hot water pipe 91; when the water pressure in the domestic water pipeline exceeds the set pressure, the valve core 15 leaves the top plate of the valve body 12, and the water in the domestic hot water outlet pipe 102 enters the outlet end of the joint 16 through the water inlet holes 122, the inner cavity of the valve body 12, and the water outlet hole 132 of the valve cover 13, and finally enters the heating hot water pipe 91 to complete pressure relief and realize water replenishment for the heating pipeline; when the water of the water source resumes the normal pressure and the water pressure is less than the elastic force of the pressure spring 14, the valve core 15 resets. Whether the domestic water pipeline is in a static state or in a use state, pressure relief can be realized evenly.

[0034] The present invention can also be implemented in this way: the pressure relief valve 11 is an electromagnetic valve, and a pressure sensor is provided on the domestic water pipeline.

[0035] The pressure sensor transmits the water pressure data of the domestic water pipeline to the control device. When the water pressure exceeds the designed pressure, the electromagnetic valve is turned on to relieve pressure for the domestic water pipeline.

[0036] The heating heat exchange pipeline 61 is arranged above the domestic water heat exchange pipeline 62.

[0037] The heating heat exchange pipeline 61 and the domestic water heat exchange pipeline 62 are respectively made of copper materials.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wall-mounted boiler, characterized in that: It includes a bottom shell, a fan assembly, a gas valve, a combustion chamber, a burner, a heat exchanger, a water inlet valve, a water pump, a heating hot water pipe, a heating water joint, a domestic water inlet pipe, and a domestic hot water outlet pipe. The heat exchanger includes a heating heat exchange pipeline, a domestic water heat exchange pipeline, and heat exchange fins. The heat exchanger is arranged inside the upper part of the combustion chamber, and the burner is arranged below the combustion chamber; the gas valve is communicated with the burner; the heating part of the water inlet valve, the water pump, the heating heat exchange pipeline, the heating hot water pipe, and the heating water joint are sequentially communicated to form a heating pipeline, and the domestic water part of the water inlet valve, the domestic water inlet pipe, the domestic water heat exchange pipeline, and the domestic hot water outlet pipe are sequentially communicated to form a domestic water pipeline; the fan assembly is arranged on the top of the combustion chamber. The pressure relief valve is communicated with the domestic hot water outlet pipe and the heating hot water pipe and relieves the pressure of the domestic hot water outlet pipe. The pressure relief valve includes a valve body, a valve cover, a pressure spring, and a valve core. The valve body has a lower opening, a body guide hole is provided at the top, and a plurality of water inlet holes are provided in the body guide hole. The valve core is provided with an upper guide rod and a lower guide rod; the valve cover is provided with a cover guide hole and a water outlet hole. The upper guide rod is slidably matched with the body guide hole, the valve core is matched with the top plate of the valve body and covers the water inlet hole; the lower guide rod passes through the pressure spring and the cover guide hole, and the valve cover is buckled with the lower opening end of the valve body. It includes a joint. The pressure relief valve is arranged inside the joint, and the joint is communicated with the domestic hot water outlet pipe and the heating hot water pipe. The pressure relief valve is an electromagnetic valve, and a pressure sensor is arranged on the domestic water pipeline.

2. The wall-hung boiler according to claim 1, wherein: The heating heat exchange pipeline is arranged above the domestic water heat exchange pipeline.

3. The wall-mounted boiler according to claim 2, characterized in that: The heating heat exchange pipeline and the domestic water heat exchange pipeline are respectively made of copper materials.

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