Water heating equipment

Abstract

The utility model discloses water heating equipment. The hot water equipment comprises a sealing cavity; the heat exchange assembly is arranged in the sealing cavity; the water pipe structure is arranged in the sealing cavity, the heat exchange assembly is installed on the water pipe structure, one end of the water pipe structure is connected with a water supply pipeline outside the hot water equipment, and the other end of the water pipe structure is connected with a heat supply pipeline outside the hot water equipment; the temperature detection assembly is installed on the water pipe structure, and the temperature detection assembly is used for detecting the real-time temperature value T of the water pipe structure when the hot water equipment is in the standby state; and the hot air circulation assembly is installed in the sealing cavity, and when the real-time temperature value T is lower than the preset temperature, the hot air circulation assembly operates. According to the hot water equipment, the hot air circulation assembly is arranged in the sealing cavity, when the real-time temperature value T is lower than the preset temperature, the hot air circulation assembly operates so as to prevent a water pipe structure from being frozen and prevent the water pipe structure from being frozen, and the hot water equipment has the advantages of being simple in structure and good in reliability.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to a hot water device. Background Technology

[0002] Current gas-fired boilers typically use internal temperature probes to monitor the real-time water temperature in the pipes. When the temperature drops below the preset anti-freeze activation temperature, the water pump starts and the gas valve opens, heating the water in the pipes through gas combustion, thus preventing the boiler from freezing. This method relies on the boiler's own operation; if any parts of the boiler malfunction, the anti-freeze program can easily fail, leading to the water freezing in the pipes and potentially causing them to rupture.

[0003] Therefore, there is an urgent need for a hot water device to solve the above problems. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems existing in the prior art. To this end, this utility model proposes a hot water device that, by setting a hot air circulation component in a sealed cavity, operates when the real-time temperature value T is lower than the preset temperature, thereby preventing the water pipe structure from freezing and preventing the water pipe structure from being frozen. The antifreeze effect of the water pipe structure can be achieved without relying on the operation of the hot water device itself, avoiding the inability to achieve antifreeze protection when the hot water device itself malfunctions. It has the advantages of simple structure and good reliability.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A hot water device, comprising:

[0007] Sealed cavity;

[0008] The heat exchange assembly is disposed within the sealed cavity;

[0009] A water pipe structure is disposed within the sealed cavity, the heat exchange component is installed on the water pipe structure, one end of the water pipe structure is connected to the water supply pipe outside the hot water equipment, and the other end of the water pipe structure is connected to the heating pipe outside the hot water equipment.

[0010] A temperature detection component is installed on the water pipe structure. The temperature detection component is used to detect the real-time temperature value T of the water pipe structure when the hot water equipment is in standby mode.

[0011] A hot air circulation component is installed inside the sealed cavity. When the real-time temperature value T is lower than the preset temperature, the hot air circulation component operates.

[0012] Optionally, the hot air circulation assembly includes a heating element and a fan connected to each other.

[0013] Optionally, the heating assembly includes a housing and a heating element. The housing has an air duct, and the housing has a hot air outlet and an air inlet communicating with the air duct. The heating element is disposed in the air duct, and the air outlet of the fan is connected to the air inlet.

[0014] Optionally, the heating element is a PTC resistor or a resistance wire.

[0015] Optionally, the heat exchange assembly includes a main heat exchanger and a domestic water heat exchanger, and the water pipe structure includes a heating heat exchange pipe and a domestic water heat exchange pipe. The main heat exchanger is installed on the heating heat exchange pipe, and the domestic water heat exchanger is installed on the domestic water heat exchange pipe. One end of the heating heat exchange pipe is connected to the outlet of the heating return water circuit, and the other end of the heating heat exchange pipe is connected to the inlet of the heating outlet water circuit. One end of the domestic water heat exchange pipe is connected to the water supply pipe outside the hot water equipment, and the other end of the domestic water heat exchange pipe is connected to the point of use.

[0016] Optionally, it also includes a three-way valve. The heating heat exchange pipe includes a first heating heat exchange pipe and a second heating heat exchange pipe. One end of the first heating heat exchange pipe is connected to the outlet of the heating return water circuit, and the other end of the first heating heat exchange pipe is connected to the inlet of the main heat exchanger. One end of the second heating heat exchange pipe is connected to the outlet of the main heat exchanger, and the other end of the second heating heat exchange pipe is connected to the inlet of the heating outlet water circuit. The domestic water heat exchange pipe includes a first domestic water heat exchange pipe and a second domestic water heat exchange pipe. The first domestic water heat exchange pipe... One end of the pipe is connected to the external water supply pipe of the hot water equipment, the other end of the first domestic water heat exchange pipe is connected to the inlet of the domestic water heat exchanger, one end of the second domestic water heat exchange pipe is connected to the outlet of the domestic water heat exchanger, the other end of the second domestic water heat exchange pipe is connected to the water point, the first domestic water heat exchange pipe is connected to the first heating heat exchange pipe, the second domestic water heat exchange pipe is connected to the second heating heat exchange pipe, and the three-way valve is installed between the second domestic water heat exchange pipe and the second heating heat exchange pipe.

[0017] Optionally, the temperature detection component includes a first temperature detector and a second temperature detector. The first temperature detector is installed on the heating heat exchange pipe and is used to detect the real-time temperature T1 of the heating heat exchange pipe. The second temperature detector is installed on the domestic water heat exchange pipe and is used to detect the real-time temperature T2 of the domestic water heat exchange pipe.

[0018] Optionally, it also includes a water pump, which is mounted on the water pipe structure.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] This utility model provides a hot water device comprising a sealed cavity, a heat exchange component, a water pipe structure, a temperature detection component, and a hot air circulation component. The heat exchange component is housed within the sealed cavity. The water pipe structure is also housed within the sealed cavity, with the heat exchange component mounted on it. One end of the water pipe structure is connected to a water supply pipe outside the hot water device, and the other end is connected to a heating pipe outside the hot water device. The temperature detection component, mounted on the water pipe structure, detects the real-time temperature T of the water pipe structure when the hot water device is in standby mode. The hot air circulation component, also installed within the sealed cavity, operates when the real-time temperature T is lower than a preset temperature to prevent the water pipe structure from freezing. This prevents the water pipe structure from freezing solid without requiring the hot water device itself to operate, thus avoiding the inability to provide antifreeze protection when the hot water device malfunctions. It features a simple structure and high reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the hot water equipment provided in a specific embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the hot air circulation component of the hot water equipment provided in a specific embodiment of this utility model;

[0023] Figure 3 This is a diagram showing the operation steps of a hot water device provided in a specific embodiment of this utility model.

[0024] In the picture:

[0025] 1. Sealed cavity;

[0026] 2. Hot air circulation assembly; 21. Fan; 22. Heating assembly; 221. Housing; 222. Heating element;

[0027] 31. Main heat exchanger; 32. Domestic water heat exchanger;

[0028] 41. Heating heat exchange pipe; 411. First heating heat exchange pipe; 412. Second heating heat exchange pipe; 42. Domestic water heat exchange pipe; 421. First domestic water heat exchange pipe; 422. Second domestic water heat exchange pipe;

[0029] 51. First temperature detector; 52. Second temperature detector;

[0030] 6. Water pump;

[0031] 7. Three-way valve. Detailed Implementation

[0032] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0033] Please refer to Figure 1 and Figure 2 This utility model provides a hot water device, including a sealed cavity 1, a heat exchange component, a water pipe structure, a temperature detection component, and a hot air circulation component 2. The heat exchange component is disposed within the sealed cavity 1. The water pipe structure is disposed within the sealed cavity 1, and the heat exchange component is mounted on the water pipe structure. One end of the water pipe structure is connected to a water supply pipe outside the hot water device, and the other end is connected to a heating pipe outside the hot water device. The temperature detection component is mounted on the water pipe structure and is used to detect the real-time temperature T of the water pipe structure when the hot water device is in standby mode. The hot air circulation component 2 is installed within the sealed cavity 1. When the real-time temperature T is lower than a preset temperature, the hot air circulation component 2 operates to prevent the water pipe structure from freezing. This prevents the water pipe structure from freezing solid without relying on the operation of the hot water device itself, thus avoiding the inability to achieve antifreeze protection when the hot water device malfunctions. It has the advantages of simple structure and good reliability.

[0034] Optionally, the hot air circulation assembly 2 includes a heating assembly 22 and a fan 21 connected to each other. The heating assembly 22 heats the airflow flowing out of the fan 21 to heat the air in the sealed cavity 1, thereby preventing the water pipe structure located in the sealed cavity 1 from freezing.

[0035] Optionally, the heating assembly 22 includes a housing 221 and a heating element 222. The housing 221 has an air duct and a hot air outlet and an air inlet that communicate with the air duct. The heating element 222 is disposed in the air duct. The air outlet of the fan 21 is connected to the air inlet so that the hot air just heated by the heating element 222 will not be blown directly into the fan 21, which is beneficial to the protection of the components of the fan 21.

[0036] Optionally, the heating element 222 is a PTC resistor or a resistance wire.

[0037] Optionally, the heat exchange components include a main heat exchanger 31 and a domestic water heat exchanger 32, and the water pipe structure includes a heating heat exchange pipe 41 and a domestic water heat exchange pipe 42. The main heat exchanger 31 is installed on the heating heat exchange pipe 41, and the domestic water heat exchanger 32 is installed on the domestic water heat exchange pipe 42. One end of the heating heat exchange pipe 41 is connected to the outlet of the heating return water circuit, and the other end of the heating heat exchange pipe 41 is connected to the inlet of the heating outlet water circuit. One end of the domestic water heat exchange pipe 42 is connected to the external water supply pipe of the hot water equipment, and the other end of the domestic water heat exchange pipe 42 is connected to the point of use, thereby simultaneously realizing the supply of heating water and domestic water.

[0038] Optionally, it also includes a three-way valve 7. The heating heat exchange pipe 41 includes a first heating heat exchange pipe 411 and a second heating heat exchange pipe 412. One end of the first heating heat exchange pipe 411 is connected to the outlet of the heating return water circuit, and the other end of the first heating heat exchange pipe 411 is connected to the inlet of the main heat exchanger 31. One end of the second heating heat exchange pipe 412 is connected to the outlet of the main heat exchanger 31, and the other end of the second heating heat exchange pipe 412 is connected to the inlet of the heating outlet water circuit. The domestic water heat exchange pipe 42 includes a first domestic water heat exchange pipe 421 and a second domestic water heat exchange pipe 422. One end of the first domestic water heat exchange pipe 421 is connected to the external water supply pipe of the hot water equipment, and the other end of the first domestic water heat exchange pipe 421 is connected to the inlet of the domestic water heat exchanger 32. One end of the second domestic water heat exchange pipe 422 is connected to the domestic water supply pipe 422. The outlet of heat exchanger 32 is connected to the other end of the second domestic water heat exchange pipe 422, which is connected to the water point. The first domestic water heat exchange pipe 421 is connected to the first heating heat exchange pipe 411, and the second domestic water heat exchange pipe 422 is connected to the second heating heat exchange pipe 412. A three-way valve 7 is installed between the second domestic water heat exchange pipe 422 and the second heating heat exchange pipe 412. When domestic hot water is needed, the three-way valve 7 closes the connection between the second heating heat exchange pipe 412 and the heating outlet, and the hot water in the second heating heat exchange pipe 412 can only flow through the domestic water heat exchanger 32, thereby heating the cold water in the domestic water heat exchange pipe 42. When domestic hot water is not needed, the three-way valve 7 closes the connection between the second domestic water heat exchange pipe and the second heating heat exchange pipe 412, and the hot water in the second heating heat exchange pipe 412 can only flow out to the heating outlet.

[0039] Optionally, the temperature detection assembly includes a first temperature detector 51 and a second temperature detector 52. The first temperature detector 51 is installed on the heating heat exchange pipe 41 and is used to detect the real-time temperature T1 of the heating heat exchange pipe 41. The second temperature detector 52 is installed on the domestic water heat exchange pipe 42 and is used to detect the real-time temperature T2 of the domestic water heat exchange pipe 42. By simultaneously detecting the real-time temperature T1 of the heating heat exchange pipe 41 and the real-time temperature T2 of the domestic water heat exchange pipe 42, icing of either the heating heat exchange pipe 41 or the domestic water heat exchange pipe 42 can be avoided.

[0040] Optionally, it also includes a water pump 6, which is installed on the water pipe structure. When the heating equipment is operating normally, the water pump 6 can be started to work in conjunction with the heat exchange components, thereby achieving the antifreeze of the water pipe structure.

[0041] Please refer to Figures 1-3 The operation method of hot water equipment includes the following steps:

[0042] S1: The hot water equipment is in standby mode;

[0043] S2: Real-time temperature value T of the water pipe structure;

[0044] S3: Determine if T≤T03. If yes, proceed to S4; otherwise, return to S2.

[0045] S4: Enters Level 3 antifreeze protection program;

[0046] S5: Both water pump 6 and hot air circulation component 2 are started;

[0047] S6: Determine if T≥T07. If yes, proceed to S7; otherwise, repeat S6.

[0048] S7: Water pump 6 and hot air circulation component 2 both stop running, exit the three-level antifreeze protection program and return to S3;

[0049] Wherein, T03 is the first preset temperature, T07 is the second preset temperature, and T07 > T03.

[0050] Optionally, S3 further includes the following steps:

[0051] S30: Determine if T≤T04. If yes, proceed to S31; otherwise, return to S2.

[0052] S31: Enter Level 4 Antifreeze Protection Program;

[0053] S32: Hot air circulation component 2 starts and issues an icing fault alarm;

[0054] S33: Determine if T≤T08. If yes, proceed to S34; otherwise, return to S32.

[0055] S34: Water pump 6 starts;

[0056] S35: Determine if T≥T09. If yes, clear the icing fault alarm, exit the level 4 antifreeze protection program and enter S2. If no, return to S34.

[0057] Among them, T04 is the third preset temperature, T08 is the fourth preset temperature, T09 is the fifth preset temperature, T03 > T09 > T08 > T04, and T04 < 1℃.

[0058] Optionally, S3 further includes the following steps:

[0059] S310: Determine if T≤T02. If yes, proceed to S320; otherwise, return to S2.

[0060] S320: Enters Level 2 antifreeze protection program;

[0061] S330: The heat exchange components will start after the first preset time t1 when the water pump 6 starts;

[0062] S340: Determine if T≥T06. If yes, proceed to S350; otherwise, return to S320.

[0063] S350: Water pump 6 stops running after a second preset time t2, exits the secondary antifreeze protection program and returns to S2;

[0064] Among them, T02 is the sixth preset temperature, T06 is the seventh preset temperature, and T06 > T02 > T03.

[0065] Optionally, 100s≤t1≤150s, 20min≤t2≤40min.

[0066] Optionally, in this embodiment, t1 is 120s and t2 is 30min.

[0067] Optionally, S3 further includes the following steps:

[0068] S300: Determine if T≤T01. If yes, proceed to S301; otherwise, return to S2.

[0069] S301: Entering Level 1 antifreeze protection procedure;

[0070] S302: Water pump 6 starts;

[0071] S303: Determine if T≥T05. If yes, proceed to S304; otherwise, return to S302.

[0072] S304: Water pump 6 stops running, exits the first-level antifreeze protection program and returns to S2;

[0073] Among them, T01 is the eighth preset temperature, T05 is the ninth preset temperature, and T05 > T01 > T02.

[0074] Optionally, the real-time temperature value T includes the real-time temperature T1 of the heating heat exchange pipe 41 and / or the real-time temperature T2 of the domestic water heat exchange pipe 42.

[0075] Specifically, when the hot water equipment is in standby mode, if both T1 and T2 are lower than T01, it first enters the first-level antifreeze protection program. If T1 and T2 continue to decrease to below T02, the first-level antifreeze protection program fails, and it enters the second-level antifreeze protection program. If T1 and T2 continue to decrease to below T03, it indicates that the water pump 6 and / or heat exchange components have malfunctioned, and the second-level antifreeze protection program fails, and it enters the third-level antifreeze protection program. If T1 and T2 continue to decrease to below T04, it indicates that the hot air circulation component 2 has malfunctioned (completely stopped operating or experienced attenuation, resulting in reduced power), and it enters the fourth-level antifreeze protection program, still instructing the hot air circulation component 2 to operate, so that even when the hot air circulation component 2 is in a attenuated state, it can still maintain a certain operating power, thereby avoiding or reducing the possibility of ice formation in the water pipe structure and achieving a better antifreeze effect.

[0076] Optionally, in this embodiment, T01 is 8°C, T02 is 5°C, T03 is 3°C, T04 is 1°C, T05 is 10°C, T06 is 25°C, T07 is 20°C, T08 is 1.1°C, and T09 is 3°C.

[0077] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A hot water device, characterized in that, include: Sealed cavity (1); A heat exchange assembly is disposed within the sealed cavity (1); A water pipe structure is set inside the sealed cavity (1), the heat exchange component is installed on the water pipe structure, one end of the water pipe structure is connected to the water supply pipe outside the hot water equipment, and the other end of the water pipe structure is connected to the heating pipe outside the hot water equipment. A temperature detection component is installed on the water pipe structure. The temperature detection component is used to detect the real-time temperature value T of the water pipe structure when the hot water equipment is in standby mode. The hot air circulation component (2) is installed in the sealed cavity (1). When the real-time temperature value T is lower than the preset temperature, the hot air circulation component (2) operates.

2. The hot water equipment according to claim 1, characterized in that, The hot air circulation assembly (2) includes a heating assembly (22) and a fan (21) connected to each other.

3. The hot water equipment according to claim 2, characterized in that, The heating assembly (22) includes a housing (221) and a heating element (222). The housing (221) has an air duct, and the housing (221) has a hot air outlet and an air inlet that communicate with the air duct. The heating element (222) is disposed in the air duct, and the air outlet of the fan (21) is connected to the air inlet.

4. The hot water equipment according to claim 3, characterized in that, The heating element (222) is a PTC resistor or a resistance wire.

5. The hot water equipment according to claim 1, characterized in that, The heat exchange assembly includes a main heat exchanger (31) and a domestic water heat exchanger (32). The water pipe structure includes a heating heat exchange pipe (41) and a domestic water heat exchange pipe (42). The main heat exchanger (31) is installed on the heating heat exchange pipe (41), and the domestic water heat exchanger (32) is installed on the domestic water heat exchange pipe (42). One end of the heating heat exchange pipe (41) is connected to the outlet of the heating return water circuit, and the other end of the heating heat exchange pipe (41) is connected to the inlet of the heating outlet water circuit. One end of the domestic water heat exchange pipe (42) is connected to the water supply pipe outside the hot water equipment, and the other end of the domestic water heat exchange pipe (42) is connected to the water point.

6. The hot water equipment according to claim 5, characterized in that, It also includes a three-way valve (7). The heating heat exchange pipe (41) includes a first heating heat exchange pipe (411) and a second heating heat exchange pipe (412). One end of the first heating heat exchange pipe (411) is connected to the outlet of the heating return water circuit, and the other end of the first heating heat exchange pipe (411) is connected to the inlet of the main heat exchanger (31). One end of the second heating heat exchange pipe (412) is connected to the outlet of the main heat exchanger (31), and the other end of the second heating heat exchange pipe (412) is connected to the inlet of the heating outlet water circuit. The domestic water heat exchange pipe (42) includes a first domestic water heat exchange pipe (421) and a second domestic water heat exchange pipe (422). The first domestic water heat exchange pipe (411)... One end of the first domestic water heat exchange pipe (421) is connected to the water supply pipe outside the hot water equipment, the other end of the first domestic water heat exchange pipe (421) is connected to the inlet of the domestic water heat exchanger (32), one end of the second domestic water heat exchange pipe (422) is connected to the outlet of the domestic water heat exchanger (32), the other end of the second domestic water heat exchange pipe (422) is connected to the water point, the first domestic water heat exchange pipe (421) is connected to the first heating heat exchange pipe (411), the second domestic water heat exchange pipe (422) is connected to the second heating heat exchange pipe (412), and the three-way valve (7) is installed between the second domestic water heat exchange pipe (422) and the second heating heat exchange pipe (412).

7. The hot water equipment according to claim 5, characterized in that, The temperature detection component includes a first temperature detector (51) and a second temperature detector (52). The first temperature detector (51) is installed on the heating heat exchange pipe (41) and is used to detect the real-time temperature T1 of the heating heat exchange pipe (41). The second temperature detector (52) is installed on the domestic water heat exchange pipe (42) and is used to detect the real-time temperature T2 of the domestic water heat exchange pipe (42).

8. The hot water equipment according to any one of claims 1-7, characterized in that, It also includes a water pump (6), which is mounted on the water pipe structure.

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