Zero cold water fuel gas hot water direct supply furnace

Abstract

The utility model provides a zero cold water fuel gas hot water direct supply furnace, which belongs to the technical field of direct supply furnaces, and comprises a main body box and a burner, a main body cover plate is arranged on one side of the main body box, the main body cover plate and the burner are detachably connected to form a main body cavity, a plurality of groups of water tanks are arranged in the main body cavity, and one group of water tanks is connected with one ends of the water tanks on two sides through connecting pipes to form a series connection structure; the combustor is installed in the main body cavity and makes contact with the multiple sets of water tanks, a water inlet pipe and a water outlet pipe are arranged on the two sides of the combustor, and a water inlet and a water outlet are formed in the main body box. The water inlet is connected with the water inlet pipe, one group of outermost water tanks are connected with the water inlet pipe and the water outlet pipe through first connecting pipes, and the other group of outermost water tanks are connected with the water outlet and the water inlet pipe through second connecting pipes. According to the device, the multiple sets of water tanks are arranged in the main body cavity and connected in series through the connecting pipes, the hot water storage amount is increased, and water temperature fluctuation caused by insufficient water tank capacity when multiple persons use the device can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct-supply furnaces, and more specifically, relates to a zero-cold-water, gas-fired, and hot-water direct-supply furnace. Background Art

[0002] A gas-fired hot water direct supply boiler is a device that uses the heat generated by gas combustion to directly heat water and supply hot water. It mainly burns gas through an internal burner, and the heat generated by the combustion is used for heat exchange, thereby heating the cold water. The heated water is directly transported to the point of use through a hot water pipe. However, traditional gas-fired hot water direct supply boilers are usually tankless structures or single integral water tank structures. During use, when multiple people use hot water at the same time, due to the limited water tank capacity or the lack of an effective water storage structure, hot water cannot be fully and stably stored and allocated, which easily leads to large fluctuations in water temperature during the hot water supply process, resulting in insufficient water temperature and mixing of cold water, reducing the applicability of the device and user comfort. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a zero-cold-water gas-fired hot water direct supply boiler to solve the technical problems in the existing technology, where traditional gas-fired hot water direct supply boilers are usually tankless or have a single water tank structure, and when used by multiple people at the same time, it is easy to cause large fluctuations in water temperature during the hot water supply process, resulting in insufficient water temperature and mixing of cold water.

[0004] The purpose and effect of the zero cold water gas hot water direct supply boiler of this utility model are achieved by the following specific technical means:

[0005] A zero-cold-water gas-fired hot water direct supply furnace comprises a main body box and a burner. A main body cover is provided on one side of the main body box, and the two are detachably connected to form a main body cavity. Multiple groups of water tanks are provided in the main body cavity, wherein one group of water tanks is connected to one end of the water tanks on both sides through a connecting pipe to form a series structure; the burner is installed in the main body cavity and contacts with multiple groups of water tanks, and water inlet pipes and water outlet pipes are provided on both sides of the burner, and a water inlet and a water outlet are provided on the main body box; the water inlet is connected to the water inlet pipe, and one group of the outermost water tanks is connected to the water inlet pipe and the water outlet pipe through a first connecting pipe, and the other group of the outermost water tanks is connected to the water outlet and the water inlet pipe through a second connecting pipe.

[0006] According to a preferred embodiment, the first connecting pipe includes a first through pipe, a second through pipe and a third through pipe, and one end of the first through pipe, the second through pipe and the third through pipe are interconnected to form a three-way pipe structure, the first through pipe is connected to the water outlet pipe, and the second through pipe is connected to one of the outermost water tanks; two groups of connecting ports are provided on both sides of the water inlet pipe, and the third through pipe is connected to one of the groups of connecting ports, a temperature sensor is provided on the first through pipe, and solenoid valves are provided on the second through pipe and the third through pipe.

[0007] According to a preferred embodiment, the second connecting pipe includes a first conduit, a second conduit, and a third conduit. One end of the first conduit, the second conduit, and the third conduit are interconnected to form a three-way pipe structure. The first conduit is connected to another group of the connecting ports, the second conduit is connected to the outermost water tank of another group, and the third conduit is connected to the water outlet. The second conduit is provided with the temperature sensor, and the first conduit and the third conduit are both provided with the solenoid valve.

[0008] According to a preferred embodiment, a mounting frame is provided in the main body cavity, and multiple groups of water tanks are installed on the mounting frame and arranged side by side in sequence. Multiple groups of mounting legs are provided on both sides of the mounting frame, and a mounting plate is provided at one end of the mounting leg. Mounting holes are provided on the mounting plate and the main body box.

[0009] According to a preferred embodiment, a plurality of groups of partitions are provided on the mounting frame, and the plurality of groups of partitions are symmetrically distributed. The partitions are clamped between two groups of water tanks, and a gap is formed between the two groups of water tanks; a support plate is provided at the bottom of the mounting frame, and the support plate is located below the water tank. An arc surface is provided between the support plate and the mounting frame, and the curvature of the arc surface is consistent with the curvature of the water tank, and the support plate is in contact with the water tank.

[0010] According to a preferred embodiment, connecting blocks are provided on both sides of the burner and the mounting bracket, connecting grooves are provided on the connecting blocks, and connecting plates are provided on both sides of the mounting bracket, the connecting plates are L-shaped, and the two ends of the connecting plates are respectively clamped in the two groups of connecting grooves; connecting holes are provided on the connecting blocks and the connecting plates, and connecting screws are passed through the connecting holes.

[0011] According to a preferred embodiment, a support plate is provided on one side of one group of the water tanks, and the support plate is in contact with the bottom of the burner.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The device's main body is connected to a main cover plate to form a main chamber. Within this chamber are multiple water tanks, connected in series to increase hot water storage capacity. This effectively prevents water temperature fluctuations caused by insufficient tank capacity when multiple people are using hot water simultaneously. One of the outermost water tanks is connected to the burner's water inlet and outlet pipes via a first connecting pipe, while the other outermost water tank is connected to the water outlet and inlet pipe via a second connecting pipe. Both the first and second connecting pipes are equipped with temperature sensors and multiple solenoid valves. The temperature sensors monitor water temperature in real time and check it before it enters the tanks. If the water temperature does not meet the set standard, the control system immediately instructs the burner to reheat it, ensuring that the water entering the tanks remains within the appropriate temperature range. This temperature check before it exits the tank further ensures that the hot water reaches the user's desired temperature. If the water temperature meets the required standard, hot water is directly discharged. If not, the water is redirected back to the pipes for reheating. By combining this temperature control mechanism with sufficient water storage capacity, the water temperature fluctuation during the hot water supply process is relatively small, effectively solving the problems of insufficient water temperature and cold water mixing in traditional gas-fired hot water direct supply boilers, and improving the applicability of the device.

[0014] 2. The mounting bracket installed in the main body cavity is used to install multiple water tanks. The mounting legs on both sides of the mounting bracket cooperate with the mounting holes of the mounting plate to firmly fix the water tanks in the main body cavity, ensuring the stability of the equipment during operation and reducing damage to the equipment caused by factors such as vibration. The partitions on the mounting bracket are symmetrically distributed and fixed between the two groups of water tanks. This not only effectively prevents the water tanks from colliding with each other, but also creates a reasonable gap between the two groups of water tanks, which is conducive to the uniform distribution of heat and the circulation of air, further improving the heat exchange efficiency of the equipment. The support plate is located below the water tank and its curvature is consistent with the curvature of the water tank. It can fit the bottom of the water tank, providing good support for the water tank, and also facilitates the conduction and utilization of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model after assembly;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model after being disassembled;

[0017] Figure 3 It is a schematic diagram of the structure after the first connecting pipe and the burner are separated;

[0018] Figure 4 It is a schematic diagram of the structure after the second connecting pipe and the burner are separated;

[0019] Figure 5 It is a structural diagram of the mounting frame.

[0020] In the figure, the corresponding relationship between component names and reference numerals is as follows:

[0021] 11. Main body box; 12. Main body cover; 13. Water inlet; 14. Water outlet; 21. Burner; 22. Water tank; 23. Water inlet pipe; 24. Water outlet pipe; 25. Connecting port; 26. Support plate; 31. First through-pipe; 32. Second through-pipe; 33. Third through-pipe; 34. Temperature sensor; 35. Solenoid valve; 36. First conduit; 37. Second conduit; 38. Third conduit; 41. Mounting bracket; 42. Mounting leg; 43. Mounting plate; 44. Partition; 45. Support plate; 46. Connecting block; 47. Connecting groove; 48. Connecting plate. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the technical solution of the present invention, but are not intended to limit the scope of protection of the present invention.

[0023] Example:

[0024] like Figures 1 to 4 As shown, the present invention provides a main body box 11 and a burner 21. A main body cover 12 is provided on one side of the main body box 11. The two are combined together by a detachable connection method, thereby forming a relatively closed main body cavity. Multiple groups of water tanks 22 are installed inside the main body cavity. One group of water tanks 22 is connected to one end of the water tanks 22 on both sides by connecting pipes, thereby forming a series structure. The burner 21 is installed in the main body cavity and contacts the multiple groups of water tanks 22. A water inlet pipe 23 and a water outlet pipe 24 are respectively provided on both sides of the burner 21. The main body box 11 is provided with a water inlet 13 and a water outlet 14. The water inlet 13 and the water inlet pipe 23 are interconnected. One group of water tanks 22 on the outermost side is connected to the water inlet pipe 23 and the water outlet pipe 24 via a first connecting pipe, and the other group of water tanks 22 on the outermost side is connected to the water outlet 14 and the water inlet pipe 23 via a second connecting pipe.

[0025] like Figure 2 、 Figure 3As shown, the first connecting pipe includes a first through-tube 31, a second through-tube 32, and a third through-tube 33. The first through-tube 31, the second through-tube 32, and the third through-tube 33 are interconnected and interlinked at one end, forming a three-way pipe structure. The first through-tube 31 is connected to the water outlet pipe 24, while the second through-tube 32 is connected to one of the outermost water tanks 22. The water inlet pipe 23 is provided with two sets of connection ports 25 on either side, and the third through-tube 33 is connected to one of these two sets of connection ports 25. A temperature sensor 34 is provided on the first through-tube 31, while solenoid valves 35 are provided on both the second through-tube 32 and the third through-tube 33. The temperature sensor 34 monitors the water temperature before it enters the water tank 22. If the water temperature does not meet the set standard, the control system instructs the burner 21 to reheat the water to ensure that the water entering the water tank 22 is within the appropriate temperature range. The temperature sensor 34 can be an EPCOS B57560G103F temperature sensor.

[0026] like Figure 2 、 Figure 4 As shown, the second connecting pipe includes a first conduit 36, a second conduit 37, and a third conduit 38. The first conduit 36, the second conduit 37, and the third conduit 38 are interconnected at one end, forming a three-way pipe structure. The first conduit 36 ​​is connected to another set of connecting ports 25, the second conduit 37 is connected to another set of outermost water tanks 22, and the third conduit 38 is connected to the water outlet 14. The second conduit 37 is also provided with a temperature sensor 34, and both the first conduit 36 ​​and the third conduit 38 are provided with a solenoid valve 35. Water temperature monitoring before the water outlet tank 22 ensures that users receive hot water at the required temperature. If the water temperature meets the requirements, hot water is directly discharged from the water outlet 14; if the water temperature does not meet the requirements, the water flow is directed back to the water pipe for reheating. By combining this temperature control mechanism with the water storage capacity of the water tank 22, water temperature fluctuations during the hot water supply process can be effectively reduced, solving the problems of insufficient water temperature and cold water contamination in traditional gas-fired direct hot water boilers, and improving the applicability of the device.

[0027] like Figure 2 、 Figure 5 As shown, a mounting bracket 41 is installed within the main body cavity, and multiple water tanks 22 are mounted on the bracket 41 and arranged side by side. Multiple sets of mounting legs 42 are provided on either side of the bracket 41, each end of which is provided with a mounting plate 43. Both the mounting plate 43 and the main body 11 have mounting holes. The coordination of the mounting legs 42, mounting plate 43, and mounting holes ensures that the water tanks 22 are securely fixed within the main body cavity, ensuring stability during operation and reducing damage to the equipment due to factors such as vibration.

[0028] The mounting frame 41 is provided with a plurality of sets of partitions 44, which are symmetrically distributed, and the partitions 44 are clamped between the two sets of water tanks 22, so that a certain gap is formed between the two sets of water tanks 22. The existence of this gap not only effectively prevents the water tanks 22 from colliding with each other, but also facilitates the uniform distribution of heat between the water tanks 22, and also facilitates the circulation of air, thereby improving the heat exchange efficiency of the equipment. The bottom of the mounting frame 41 is provided with a supporting plate 45, which is located below the water tank 22. An arc surface is arranged between the supporting plate 45 and the mounting frame 41, and the radius of the arc surface is consistent with the radius of the water tank 22. The supporting plate 45 is in contact with the water tank 22, which can provide good support for the water tank 22, and to a certain extent, it is helpful for heat conduction and utilization.

[0029] The burner 21 and the mounting frame 41 are provided with connecting blocks 46 on both sides, and the connecting blocks 46 are provided with connecting grooves 47. The mounting frame 41 is provided with connecting plates 48 on both sides, and the connecting plates 48 are L-shaped. The connecting plates 48 are clamped in the two sets of connecting grooves 47. Connecting holes are arranged on the connecting blocks 46 and the connecting plates 48, and connecting screws are arranged in the connecting holes. This connection mode makes the connection between the burner 21 and the mounting frame 41 more stable, which is conducive to the stable operation of the whole equipment.

[0030] One side of one of the water tanks 22 is provided with a supporting plate 26, which is in contact with the bottom of the burner 21. The supporting plate 26 can provide certain auxiliary support for the water tank 22, and enhance the stability of the water tank 22 during the operation of the equipment.

[0031] The specific use and effect of the embodiment are as follows:

[0032] Firstly, ensure that the gas supply is normally connected to the burner 21, and the water inlet 13 is connected to the cold water source. When the hot water use demand is turned on, the cold water flows into the water inlet pipe 23 from the water inlet 13. At this time, the temperature sensor 34 located on the first through pipe 31 detects the temperature of the incoming cold water. If the water temperature does not reach the preset suitable temperature standard, the control system will automatically start the burner 21 for heating operation, so that the cold water is heated to the appropriate range before entering the water tank 22.

[0033] Then, the water that has been preliminarily heated or is originally at a suitable temperature enters the water tank 22 in series through the connecting pipe for storage and further heat equalization. In the water tank 22, the water exchanges heat with the heat conducted from the burner 21, so that the water temperature remains stable.

[0034] When hot water needs to be output from the water outlet 14, the temperature sensor 34 located on the second conduit 37 again detects the temperature of the water about to flow out. If the water temperature meets the requirements, the water flow will flow out from the water outlet 14 through the third conduit 38, and is supplied to the terminal end such as a faucet, a shower nozzle and the like, to meet the hot water use requirements of the user. If it is detected that the water temperature does not meet the requirements, the electromagnetic valves 35 on the first conduit 36 and the third conduit 38 will work cooperatively to guide the water flow back to the water inlet pipe 23, so that the water flow reenters the heating cycle until the water temperature meets the requirements and is then output from the water outlet 14.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments.

Claims

1. A zero-cold-water gas-fired hot-water direct-supply boiler, comprising a main body box (11) and a burner (21), characterized in that: A main body cover (12) is provided on one side of the main body box (11), and the two are detachably connected to form a main body cavity. Multiple groups of water tanks (22) are provided in the main body cavity, wherein one group of water tanks (22) is connected to one end of the water tanks (22) on both sides through a connecting pipe to form a series structure; the burner (21) is installed in the main body cavity and contacts the multiple groups of water tanks (22), and water inlet pipes (23) and water outlet pipes (24) are provided on both sides of the burner (21). A water inlet (13) and a water outlet (14) are provided on the main body box (11); the water inlet (13) is connected to the water inlet pipe (23), wherein one group of outermost water tanks (22) is connected to the water inlet pipe (23) and the water outlet pipe (24) through a first connecting pipe, and another group of outermost water tanks (22) is connected to the water outlet (14) and the water inlet pipe (23) through a second connecting pipe.

2. The zero cold water gas hot water direct supply boiler according to claim 1, characterized in that: The first connecting pipe comprises a first through pipe (31), a second through pipe (32) and a third through pipe (33); one end of the first through pipe (31), the second through pipe (32) and the third through pipe (33) are connected to each other to form a three-way pipe structure; the first through pipe (31) is connected to the water outlet pipe (24), and the second through pipe (32) is connected to one of the outermost water tanks (22); two groups of connecting ports (25) are provided on both sides of the water inlet pipe (23), and the third through pipe (33) is connected to one of the groups of connecting ports (25); a temperature sensor (34) is provided on the first through pipe (31), and a solenoid valve (35) is provided on both the second through pipe (32) and the third through pipe (33).

3. The zero cold water gas hot water direct supply boiler according to claim 2, characterized in that: The second connecting pipe comprises a first conduit (36), a second conduit (37) and a third conduit (38); one end of the first conduit (36), the second conduit (37) and the third conduit (38) are connected to each other to form a three-way pipe structure; the first conduit (36) is connected to another group of the connecting ports (25); the second conduit (37) is connected to another group of the outermost water tanks (22); and the third conduit (38) is connected to the water outlet (14); the second conduit (37) is provided with the temperature sensor (34); and the first conduit (36) and the third conduit (38) are both provided with the solenoid valve (35).

4. The zero cold water gas hot water direct supply boiler according to claim 1, characterized in that: A mounting frame (41) is provided in the main body cavity, and multiple groups of water tanks (22) are mounted on the mounting frame (41) and arranged side by side in sequence. Multiple groups of mounting legs (42) are provided on both sides of the mounting frame (41), and a mounting plate (43) is provided at one end of the mounting leg (42). Mounting holes are provided on the mounting plate (43) and the main body box (11).

5. The zero cold water gas hot water direct supply boiler according to claim 4, characterized in that: The mounting frame (41) is provided with multiple groups of partitions (44), which are symmetrically distributed. The partitions (44) are clamped between two groups of water tanks (22), and a gap is formed between the two groups of water tanks (22); a supporting plate (45) is provided at the bottom of the mounting frame (41), and the supporting plate (45) is located below the water tank (22). An arc surface is provided between the supporting plate (45) and the mounting frame (41), and the arc of the arc surface is consistent with the arc of the water tank (22). The supporting plate (45) is in contact with the water tank (22).

6. The zero cold water gas hot water direct supply boiler according to claim 5, characterized in that: Connecting blocks (46) are provided on both sides of the burner (21) and the mounting frame (41), and connecting grooves (47) are provided on the connecting blocks (46). Connecting plates (48) are provided on both sides of the mounting frame (41), and the connecting plates (48) are L-shaped, with both ends of the connecting plates (48) respectively clamped in two groups of the connecting grooves (47); connecting holes are provided on the connecting blocks (46) and the connecting plates (48), and connecting screws are inserted into the connecting holes.

7. The zero cold water gas hot water direct supply boiler according to claim 6, characterized in that: One side of one group of the water tanks (22) is provided with a support plate (26), and the support plate (26) is in contact with the bottom of the burner (21).

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