Multi-heat-source liquid heating pipeline

Abstract

The utility model provides a multi-heat-source liquid heating pipeline which comprises a shell, the shell is formed by nesting a plurality of cylindrical parts and is sequentially divided into a preheating chamber, a flue, a heating chamber and a hollow cavity from outside to inside, and a communicating pipe is arranged between the upper portion of the preheating chamber and the upper portion of the heating chamber; a combustion chamber is arranged at the bottom of the shell, a ring piece is arranged in the combustion chamber, and a plurality of flame nozzles are fixedly connected to the upper end of the ring piece; a plurality of electric heating pipes are arranged in the heating chamber in a penetrating mode, and the electric heating pipes extend out of the upper end of the heating chamber. According to the invention, a gas heating mode and an electric heating mode are set, and a proper operation mode can be selected according to working conditions, so that the operation cost is reduced or the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid heating, and in particular to a multi-heat source liquid heating pipeline. Background Art

[0002] A pipe heater is an energy-saving device that preheats materials. Installed before the material equipment, it directly heats the material, circulating the heat at high temperatures and ultimately saving energy. It is widely used for preheating fuels such as heavy oil, asphalt, and light oil. The heated medium of a pipe heater is generally gas or liquid, but most existing pipe heaters use electrical heating.

[0003] First, the electric heating method is relatively simple. Second, the electricity price varies at different times, which makes it difficult to effectively control the operating cost of the pipeline heater. Therefore, the present invention provides a pipeline heater that is gas-fired and electric-heated. Summary of the Invention

[0004] To address the aforementioned issues, the present invention discloses a multi-heat-source liquid heating pipeline, comprising a housing composed of a plurality of nested cylindrical components. The housing is sequentially divided, from the outside inward, into a preheating chamber, a flue, a heating chamber, and a hollow chamber. A connecting pipe is provided between the upper portions of the preheating and heating chambers. The flue, located between the preheating and heating chambers, absorbs as much heat as possible.

[0005] The bottom of the shell is provided with a combustion chamber, the interior of the combustion chamber is provided with a ring, the upper end of the ring is fixedly connected to a plurality of burner nozzles. The gas sent by the burner nozzles is ignited to heat the bottom of the heating chamber.

[0006] Several electric heating tubes are interspersed within the heating chamber and extend from its upper end. When energized, these tubes generate heat, heating the water in the chamber. This solution utilizes both electric and gas heating, adapting the appropriate heating method to different time periods to reduce operating costs. If necessary, both electric and gas heating can operate simultaneously to improve heating efficiency.

[0007] Preferably, a plurality of heat conducting plates are fixedly connected vertically at equal angles inside the flue, the heat conducting plates are fixedly connected to the side walls of the heating chamber, and a spiral partition is provided inside the preheating chamber. The purpose of providing the heat conducting plates is to conduct heat into the heating chamber as much as possible.

[0008] Preferably, the upper end of the housing is a flange structure, and an outer smoke hood and an inner smoke hood are fixedly connected to the middle of the flange structure. The passage between the outer smoke hood and the inner smoke hood is connected to the flue to discharge the generated smoke. The upper end of the outer smoke hood is configured with a reduced diameter to facilitate connection to a pipeline or other channel for smoke treatment.

[0009] A junction box is provided inside the inner smoke hood, and the upper end of the electric heating tube extends to the junction box. A wire threading hole is provided between the outer smoke hood and the inner smoke hood. The inner smoke hood is used to protect the junction box and prevent heat in the flue gas from damaging the junction box.

[0010] Preferably, a feed pipe is fixedly connected to the lower sidewall of the housing and communicates with the preheating chamber. A discharge pipe is fixedly connected to the bottom of the heating chamber, passing through the hollow cavity and exiting through the upper sidewall of the housing. The bottom of the heating chamber and the burner are positioned close together, so that the water at the bottom of the heating chamber is heated first, i.e., the heated water can be immediately discharged through the discharge pipe.

[0011] Preferably, the side wall of the ring is fixedly connected with a connecting rod at an equal angle, the other end of the connecting rod is fixedly connected to the inner wall of the combustion chamber, and the side wall of the ring is fixedly connected with a gas pipe. The connecting rod is used to support the Gudang ring.

[0012] Preferably, a drain pipe is fixedly connected to the bottom of the heating chamber and extends downward through the housing. The bottom of the housing is provided with a plurality of air inlet holes. During long-term use, the heating chamber generates dirt, so a drain pipe is provided that can be opened regularly for draining.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. Electric heating and gas heating are provided. When the price of gas is higher than the price of electricity, electric heating is enabled, otherwise gas heating is used. The two are taken into consideration comprehensively to reduce the operating cost of the device.

[0015] 2. A preheating chamber and a heating chamber are provided, and a flue is provided between the preheating chamber and the heating chamber to absorb the heat generated by combustion as much as possible. In addition, when necessary, electric heating and gas heating are used simultaneously to improve the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 It is an explosion diagram of the present invention;

[0018] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0019] Figure 4 It is a schematic diagram of the lower end of the present invention.

[0020] List of reference numerals:

[0021] 1. Shell; 2. Discharge pipe; 3. Outer smoke hood; 4. Threading hole; 5. Connecting rod; 6. Ring; 7. Burner nozzle; 8. Gas pipe; 9. Electric heating pipe; 10. Junction box; 11. Drain pipe; 12. Combustion chamber; 13. Heating chamber; 14. Preheating chamber; 15. Spiral partition; 16. Heat conduction plate; 17. Flue; 18. Connecting pipe; 19. Inner smoke hood; 20. Feed pipe; 21. Air inlet. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0023] like Figures 1 to 4 As shown, a multi-heat source liquid heating pipeline includes a shell 1. The shell 1 is a cylindrical structure. The shell 1 is composed of a plurality of nested cylindrical parts and is divided into a preheating chamber 14, a flue 17, a heating chamber 13 and a hollow chamber from the outside to the inside. The combustion flue gas passes between the preheating chamber 14 and the heating chamber 13, thereby heating the water in the preheating chamber 14 and the heating chamber 13. A connecting pipe 18 is provided between the upper parts of the preheating chamber 14 and the heating chamber 13. After the connecting pipe 18 is provided, the water in the preheating chamber 14 can flow into the heating chamber 13. A flue is provided between the preheating chamber 14 and the heating chamber 13, which increases the heat exchange area and improves the heat exchange effect.

[0024] A combustion chamber 12 is provided at the bottom of the shell 1, and a ring 6 is provided inside the combustion chamber 12. The ring 6 is hollow and has air inlet holes on the ring 6 to provide an oxidant for combustion. A plurality of flame nozzles 7 are fixedly connected to the upper end of the ring 6. The flame nozzles 7 spray out gas for combustion to heat the bottom of the heating chamber 13.

[0025] Several electric heating tubes 9 are interspersed inside the heating chamber 13, and the electric heating tubes 9 extend from the upper end of the heating chamber 13. That is, the electric heating tubes 9 generate heat when energized to heat the water in the heating chamber 13. The gas heating and electric heating methods can be selected according to the actual working conditions.

[0026] A number of heat conducting plates 16 are fixedly connected vertically at equal angles inside the flue 17. The heat conducting plates 16 are fixedly connected to the side walls of the heating chamber 13. The arrangement of the heat conducting plates 16 increases the heating area, thereby introducing more heat into the heating chamber 13 and giving priority to heating the heating chamber 13. Relatively speaking, the greater the temperature difference between objects, the faster the heat dissipation. The heating chamber 13 is arranged inside and heated first to reduce heat loss. A spiral partition 15 is provided inside the preheating chamber 14, so that the water in the preheating chamber 14 spirally rises to ensure that there is no dead zone in the preheating chamber 14 where water does not flow.

[0027] The upper end of the shell 1 is a flange structure, which is convenient for supporting the fixing device, and the middle part of the flange structure is fixedly connected to the outer smoke hood 3 and the inner smoke hood 19. The outer smoke hood 3 and the inner smoke hood 19 are an integrated structure and are fixedly connected to the upper end of the shell 1 by means of flanges. The channel between the outer smoke hood 3 and the inner smoke hood 19 is connected to the flue 17 to discharge the smoke passing through the flue 17.

[0028] A junction box 10 is provided inside the inner smoke hood 19, and the upper end of the electric heating tube 9 extends to the junction box 10. The cable of the junction box 10 and the electric heating tube 9 are electrically connected for heat supply. A wire hole 4 is provided between the outer smoke hood 3 and the inner smoke hood 19. Insulation materials are provided on the inner smoke hood 19, the outer smoke hood 3 and the wire hole 4, and the wire hole 4 is a wire entry hole for external cables.

[0029] A feed pipe 20 is fixedly connected to the lower side wall of the shell 1, and the feed pipe 20 is connected to the preheating chamber 14, that is, water enters the bottom of the preheating chamber 14 through the feed pipe 20, and enters the heating chamber 13 along the spiral channel and the connecting pipe 18. A discharge pipe 2 is fixedly connected to the bottom of the heating chamber 13. Water is heated to a specified temperature in the process of falling from the top of the heating chamber 13 to the bottom, and is finally discharged from the discharge pipe 2. The discharge pipe 2 passes through the hollow cavity and out from the upper side wall of the shell 1. The entire device realizes a bottom-in and top-out design.

[0030] The side wall of the ring 6 is fixedly connected with a connecting rod 5 at an equal angle, and the other end of the connecting rod 5 is fixedly connected to the inner wall of the combustion chamber 12. The connecting pipe 5 is used to support and fix the ring 6. The side wall of the ring 6 is fixedly connected with a gas pipe 8, and the gas pipe 8 is used to provide gas. An opening is provided at the connection between the gas pipe 8 and the ring 6, which inhales sufficient air through the principle of siphoning, thereby facilitating combustion.

[0031] A drain pipe 11 is fixedly connected to the bottom of the heating chamber 13, and the drain pipe 11 is set downward through the shell 1. The drain pipe 11 is set to facilitate regular cleaning of dirt generated in the heating chamber 13. Several air inlet holes 21 are set at the bottom of the shell 1, and air enters the interior of the combustion chamber 12.

[0032] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A multi-heat source liquid heating pipeline, characterized in that: The housing (1) comprises a plurality of nested cylindrical parts, and is divided into a preheating chamber (14), a flue (17), a heating chamber (13) and a hollow chamber from the outside to the inside, wherein a connecting pipe (18) is provided between the upper parts of the preheating chamber (14) and the heating chamber (13); A combustion chamber (12) is provided at the bottom of the housing (1), a ring member (6) is provided inside the combustion chamber (12), and a plurality of flame nozzles (7) are fixedly connected to the upper end of the ring member (6); A plurality of electric heating tubes (9) are interspersed in the interior of the heating chamber (13), and the electric heating tubes (9) extend from the upper end of the heating chamber (13).

2. The multi-heat source liquid heating pipeline according to claim 1, characterized in that: A plurality of heat conducting plates (16) are fixedly connected vertically and at equal angles inside the flue (17), and the heat conducting plates (16) are fixedly connected to the side walls of the heating chamber (13). A spiral partition (15) is provided inside the preheating chamber (14).

3. The multi-heat source liquid heating pipeline according to claim 1, characterized in that: The upper end of the shell (1) is a flange structure, and the middle part of the flange structure is fixedly connected to an outer smoke hood (3) and an inner smoke hood (19), and a passage between the outer smoke hood (3) and the inner smoke hood (19) is connected to a flue (17).

4. The multi-heat source liquid heating pipeline according to claim 3, characterized in that: A junction box (10) is provided inside the inner smoke hood (19), and the upper end of the electric heating tube (9) extends to the junction box (10). A wire threading hole (4) is provided between the outer smoke hood (3) and the inner smoke hood (19).

5. The multi-heat source liquid heating pipeline according to claim 1, characterized in that: A feed pipe (20) is fixedly connected to the lower side wall of the shell (1), and the feed pipe (20) is communicated with the preheating chamber (14). A discharge pipe (2) is fixedly connected to the bottom of the heating chamber (13), and the discharge pipe (2) passes through the hollow chamber and exits from the upper side wall of the shell (1).

6. The multi-heat source liquid heating pipeline according to claim 1, characterized in that: The side wall of the ring member (6) is fixedly connected to a connecting rod (5) at an equal angle, the other end of the connecting rod (5) is fixedly connected to the inner wall of the combustion chamber (12), and the side wall of the ring member (6) is fixedly connected to a gas pipe (8).

7. The multi-heat source liquid heating pipeline according to claim 1, characterized in that: A sewage pipe (11) is fixedly connected to the bottom of the heating chamber (13), and the sewage pipe (11) is arranged to pass through the shell (1) downward. A plurality of air inlet holes (21) are arranged at the bottom of the shell (1).

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