Volumetric water heater

Abstract

The utility model discloses a volumetric water heater which comprises a barrel, an upper sealing head is connected to the top of the barrel in a welded mode, a furnace pipe is installed below the upper sealing head, the top of the furnace pipe is connected with a preformed hole, the preformed hole extends upwards to penetrate through the barrel, a gap for clear water to flow is formed between the furnace pipe and the barrel, and the upper sealing head is connected with the upper sealing head in a welded mode. A smoke pipe hole is formed in the bottom of the boiler furnace, a pipe bundle is welded to the smoke pipe hole, a turbolator capable of guiding high-temperature smoke into two symmetrical smoke streams is arranged in the pipe bundle, a smoke collecting chamber is connected to the bottom of the pipe bundle, a flue outlet is connected to the left side of the smoke collecting chamber, a water inlet is formed in the lower right portion of the barrel, and a water outlet is formed in the lower right portion of the barrel. A water outlet is formed in the top of the right side of the barrel. The device is simple in structure and convenient to operate, heat generated by high-temperature flue gas can be efficiently utilized, and good economic benefits are created.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchange devices, specifically relating to a storage-type water heater. Background Technology

[0002] Storage water heaters are equipped with heat exchange flues and combustion devices. The combustion device ignites the gas, and the high-temperature flue gas generated by the combustion of the gas heats the water in the tank through the heat exchange flue and is discharged from the outlet for people to use. However, the area of ​​the heat exchange flue used to heat the water in the tank is small, which cannot fully exchange the heat of the flue gas with the water in the tank, resulting in low heat exchange efficiency and energy waste. Utility Model Content

[0003] In response to the shortcomings of existing technologies, the inventors developed a storage-type water heater based on their extensive experience in the field of heat exchange device technology.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a volumetric water heater, comprising a cylinder, an upper end cap connected to the top of the cylinder by welding, a furnace liner installed below the upper end cap, the top of the furnace liner connected to a pre-drilled hole extending upward through the cylinder, a gap forming between the furnace liner and the cylinder for the flow of clean water, a flue hole opened at the bottom of the furnace liner, a tube bundle welded to the flue hole, a turbulence guideer in the tube bundle to guide high-temperature flue gas into two symmetrical flue gas streams, a smoke collection chamber connected to the bottom of the tube bundle, a flue outlet connected to the left side of the smoke collection chamber, a water inlet installed at the lower right of the cylinder, and a water outlet installed at the top right of the cylinder.

[0005] Furthermore, a burner is installed on the top of the water heater, with the lower part of the burner inserted into a pre-drilled hole. The burner is fixed to the top of the water heater by a mounting plate, and the gas from the burner is burned in the furnace.

[0006] Furthermore, a level gauge for monitoring the water level in the cylinder is installed on the inner wall of the reserved hole.

[0007] Furthermore, clean water enters the cylinder through the inlet, exchanges heat with the high-temperature flue gas in the tube bundle, and then flows out from the outlet.

[0008] Furthermore, a pressure relief valve is installed on the upper right side of the cylinder. When overpressure occurs in the cylinder, the pressure can be released in time to ensure the safety of the water heater.

[0009] Furthermore, a condensate pipe is installed at the bottom of the cylinder, a condensate valve is installed on the condensate pipe, and a drain valve is installed on the lower left side of the cylinder. The drain valve is installed at position H1, and the condensate pipe is installed at position H2, where H1 > H2.

[0010] Furthermore, both the upper end cap and the furnace liner are elliptical in shape.

[0011] Furthermore, the number of tubes is ≥15.

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

[0013] 1. By setting up turbulence in the tube bundle to guide the high-temperature flue gas into two symmetrical flue gas streams, the heat exchange area is effectively increased, which can make full use of the heat of the high-temperature flue gas and effectively improve the heat exchange efficiency.

[0014] 2. The inventor installed a pressure relief valve and a level gauge on the water heater, which can effectively ensure the safe operation of the hot water.

[0015] This invention has a simple structure and is easy to operate. It can efficiently utilize the heat generated by high-temperature flue gas and create good economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the disassembled components of the water heater body and the burner.

[0018] Figure 3 This is a side view of the present invention.

[0019] Figure 4 This is a top view of the present invention.

[0020] Attached reference numerals: 1. Mounting plate, 2. Upper head, 3. Furnace shell, 4. Pressure relief valve, 5. Shell, 6. Tube bundle, 601. Turbine, 7. Smoke chamber, 8. Water inlet, 9. Flue outlet, 10. Condensate pipe, 1001. Condensate valve, 11. Water outlet, 12. Level gauge, 13. Drain valve, 14. Burner, 15. Reserved hole. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1-4As shown, a storage-type water heater includes a cylinder 5. The top of the cylinder 5 is bolted to an upper end cap 2. A furnace 3 is installed below the upper end cap 2. The top of the furnace 3 is connected to a pre-drilled hole 15, which extends upward through the cylinder 5. A gap is formed between the furnace 3 and the cylinder 5 to allow water to flow. A flue hole is opened at the bottom of the furnace 3. A tube bundle 6 is welded to the flue hole. A turbulence deflector 601 is provided in the tube bundle 6 to guide high-temperature flue gas into two symmetrical flue gas streams. A smoke collection chamber 7 is connected to the bottom of the tube bundle 6. A flue outlet 9 is connected to the left side of the smoke collection chamber 7. A water inlet 8 is installed at the lower right part of the cylinder 5. A water outlet 11 is installed at the top right side of the cylinder 5.

[0023] In this embodiment, a burner 14 is installed on the top of the water heater. The lower part of the burner 14 is inserted into the reserved hole 15. The burner 14 is fixed to the top of the water heater 14 by the mounting plate 1. The gas of the burner 14 is burned in the furnace 3.

[0024] In this embodiment, a level gauge 12 for monitoring the water level in the cylinder is provided on the inner wall of the reserved hole 15.

[0025] In this embodiment, clean water enters the cylinder 5 through the inlet 8, exchanges heat with the high-temperature flue gas in the tube bundle 6, and then flows out through the outlet 11. The clean water flows into the water heater from a lower position and out from a higher position, effectively avoiding the problem of a "dry zone" in the water heater and ensuring its efficient operation.

[0026] In this embodiment, a pressure relief valve 4 is installed on the upper right side of the cylinder 5. When the cylinder 5 experiences overpressure, the pressure can be released in time to ensure the safety of the water heater.

[0027] In this embodiment, a condensate pipe 10 is installed at the bottom of the cylinder 5, a condensate valve 1001 is installed on the condensate pipe 10, and a drain valve 1001 is installed on the lower left side of the cylinder 5. The drain valve 1001 is installed at position H1, and the condensate pipe 10 is installed at position H2, where H1 > H2.

[0028] In this embodiment, both the upper end cap 2 and the furnace liner 3 are elliptical in shape.

[0029] In this embodiment, the number of tube bundles 6 is ≥15.

[0030] In practical use, clean water first enters the water heater from the inlet 8. When the clean water flows out from the outlet 11, the burner 14 is ignited. The gas in the burner 14 is burned in the furnace 3. The high-temperature flue gas generated moves downward along the tube bundle 6 and finally reaches the smoke collection chamber 7. Then it enters the next process through the flue outlet 9.

[0031] When the high-temperature flue gas enters the tube bundle 6, it is guided by the turbulent flow element 601 and splits into two symmetrical streams. The high-temperature flue gas undergoes intense spiral motion within the tube bundle, creating a turbulent flow that not only allows heat energy near the tube core to diffuse fully to the tube wall but also increases the contact length between the high-temperature flue gas and the tube wall, facilitating heat exchange and thus improving the heat exchange efficiency of the water heater. The turbulent flow element is manufactured by twisting a thin metal strip. In this embodiment, the turbulent flow element is purchased commercially. The specific structure of the turbulent flow element can be found in patent document CN2089155U. The clean water, after heat exchange, continuously flows out from the outlet 11 into the next process.

[0032] When the water heater is running, the reading on the level gauge 12 should be observed at all times to prevent the water heater from drying out.

[0033] When the water heater needs maintenance, open the drain valve 13 and the condensate valve 1001, and make sure that the hot water in the tank 5 has been drained before carrying out maintenance work.

[0034] It should be noted that in this document, terms such as "left" and "right" only indicate different relative positions, and are not necessarily "left" or "right" on the actual device. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and combinations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A storage-type water heater, characterized in that: The device includes a cylindrical body, with an upper end cap welded to the top of the cylindrical body. A furnace liner is installed below the upper end cap, and the top of the furnace liner is connected to a pre-drilled hole that extends upward through the cylindrical body. A gap is formed between the furnace liner and the cylindrical body for the flow of clean water. A flue pipe hole is provided at the bottom of the furnace liner, and a tube bundle is welded to the flue pipe hole. A turbulence breaker is installed in the tube bundle to guide the high-temperature flue gas into two symmetrical flue gas streams. A smoke collection chamber is connected to the bottom of the tube bundle, and a flue outlet is connected to the left side of the smoke collection chamber. A water inlet is installed at the lower right part of the cylindrical body, and a water outlet is installed at the top right side of the cylindrical body.

2. A storage-type water heater according to claim 1, characterized in that: A burner is installed on the top of the water heater. The lower part of the burner is inserted into a pre-drilled hole. The burner is fixed to the top of the water heater by a mounting plate. The gas from the burner is burned in the furnace.

3. A storage-type water heater according to claim 1, characterized in that: A level gauge for monitoring the water level in the cylinder is installed on the inner wall of the reserved hole.

4. A storage-type water heater according to claim 1, characterized in that: Clean water enters the cylinder through the inlet, exchanges heat with the high-temperature flue gas in the tube bundle, and then flows out through the outlet.

5. A storage-type water heater according to claim 1, characterized in that: A pressure relief valve is installed on the upper right side of the cylinder.

6. A storage-type water heater according to claim 1, characterized in that: A condensate pipe is installed at the bottom of the cylinder, and a condensate valve is installed on the condensate pipe. A drain valve is installed on the lower left side of the cylinder, with the drain valve installed at position H1 and the condensate pipe installed at position H2, where H1 > H2.

7. A storage-type water heater according to claim 1, characterized in that: Both the upper end cap and the furnace liner are elliptical in shape.

8. A storage-type water heater according to claim 1, characterized in that: The number of tubes is ≥15.

Images