Integrated electric heating vacuum boiler

Abstract

The utility model relates to the technical field of boilers, in particular to an integrated electric heating vacuum boiler which comprises a main machine, a heat exchange device is installed on the upper portion of the main machine, the top of one end of the heat exchange device is connected with a water return pipeline and a water outlet connecting pipe, and the outer end of the water return pipeline is externally connected with a heat supply system water return pipeline through a water return connecting pipe. The outer end of the water outlet connecting pipe is externally connected with a heat supply system water outlet pipeline, the outer end of the heat exchange device is further connected with a water supplementing pipeline, and the outer end of the water supplementing pipeline is connected with a water supplementing expansion tank. According to the integrated electric heating vacuum boiler, the water return pipeline, the water outlet connecting pipe and the water return connecting pipe can be conveniently in butt joint with a water return pipeline and a water outlet pipeline of an external heat supply system, and the smoothness of water circulation is improved; and the functions of maintaining the water pressure stable, absorbing water hammer impact, saving energy and prolonging the service life of the water pump are achieved in the integrated electric heating vacuum boiler through the water supplementing expansion tank, the water circulation effect is improved, the circulation speed of water flow is increased through the water supplementing pump and the circulating pump, and therefore the water circulation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to an integrated electric heating vacuum boiler. Background Art

[0002] As a zero-emission thermal energy equipment, electric boilers are gradually expanding the scope of electric energy substitution, forming a new type of electricity consumption market that is energy-saving, environmentally friendly, convenient, efficient, technically feasible, and widely used. On the other hand, with the development of science and technology and the improvement of people's living standards, customers have put forward higher and higher requirements for the convenience of boiler equipment, hoping to save various expenses through more convenient and efficient boiler equipment.

[0003] The integrated electric vacuum boiler is an efficient and environmentally friendly heating equipment, which is widely used in industrial, commercial and other fields. The boiler improves heating efficiency and reduces energy consumption and emissions by integrating electric heating technology and vacuum technology.

[0004] However, there are some problems with traditional integrated electric vacuum boilers. First, due to the unreasonable structural design of the water inlet and return pipes, the water circulation is not smooth enough, which affects the overall performance of the boiler. In addition, the installation and disassembly of the equipment is relatively cumbersome. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated electric vacuum boiler to solve some problems of the traditional integrated electric vacuum boiler mentioned in the above background technology. First, due to the unreasonable structural design of the water inlet and return pipes, the water circulation is not smooth enough, which affects the overall performance of the boiler. And the installation and disassembly of the equipment are relatively cumbersome.

[0006] To achieve the above-mentioned purpose, the utility model provides an integrated electric vacuum boiler, including a main unit, a heat exchange device is installed on the upper part of the main unit, a return water pipeline and a water outlet pipe are connected to the top of one end of the heat exchange device, the outer end of the return water pipeline is externally connected to the return water pipeline of the heating system through the return water pipe, the outer end of the water outlet pipe is externally connected to the water outlet pipe of the heating system, the outer end of the heat exchange device is also connected to a water supply pipeline, the outer end of the water supply pipeline is connected to a water supply expansion tank, and the outer side of the water supply expansion tank is connected to a soft water tank through a pipeline.

[0007] Preferably, a base is installed at the bottom of the main machine, and an electric control cabinet is also installed on the base.

[0008] Preferably, a sewage pipe is connected to the bottom of one end of the main engine.

[0009] Preferably, the heat exchange device comprises a plurality of horizontally arranged heat exchange tubes, and headers are installed at the ends of the heat exchange tubes.

[0010] Preferably, an exhaust valve is provided at the top of one end of the heat exchange device, and a sewage valve is provided at the bottom of one end of the heat exchange device.

[0011] Preferably, a water level electrode is installed on the middle outer wall of one side of the main machine.

[0012] Preferably, a circulation pump is installed on the return water pipeline, and a water replenishment pump is installed on the connecting pipeline between the soft water tank and the water replenishment expansion tank.

[0013] Preferably, water treatment equipment is also installed on the base.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the integrated electric vacuum boiler, the return water pipeline, the outlet water pipe and the return water pipe arranged therein facilitate connection with the return water and outlet water pipelines of the external heating system, thereby improving the smoothness of water circulation. The water replenishment expansion tank in the integrated electric vacuum boiler plays a role in maintaining water pressure stability, absorbing water hammer impact, saving energy and extending the service life of the water pump, thereby improving the effect of water circulation. The water replenishment pump and the circulation pump increase the circulation speed of the water flow, thereby improving the effect of water circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a side structural schematic diagram of the utility model.

[0019] The meaning of each number in the figure is:

[0020] 1. Main unit; 11. Base; 12. Drain pipe; 13. Water level electrode; 14. Drain valve; 15. Exhaust valve; 16. Electric control cabinet; 2. Heat exchange device; 3. Return water pipeline; 4. Outlet pipe; 5. Return water pipe; 6. Circulation pump; 7. Soft water tank; 71. Make-up water pump; 8. Make-up water pipeline; 9. Make-up water expansion tank; 10. Water treatment equipment. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides an integrated electric heating vacuum boiler, such as Figure 1-Figure 3 As shown, it includes a main unit 1, and a heat exchange device 2 is installed on the upper part of the main unit 1 for performing heat exchange operations to heat water to meet the needs of the external heating system. The top of one end of the heat exchange device 2 is connected to a return water pipeline 3 and a water outlet pipe 4, which are used for water inlet and water outlet of the boiler respectively. The outer end of the return water pipeline 3 is connected to the return water pipeline of the heating system through the return water pipe 5, and the outer end of the water outlet pipe 4 is connected to the water outlet pipeline of the heating system. The outer end of the heat exchange device 2 is also connected to a water replenishment pipeline 8 for performing water replenishment operations. The outer end of the water replenishment pipeline 8 is connected to a water replenishment expansion tank 9. When the pressure of the water in the system increases, water will enter the water chamber in the water replenishment expansion tank 9, and at the same time, the air in the water replenishment expansion tank 9 will be compressed. When the compressed air is compressed to a certain extent, the elastic material in the water replenishment expansion tank 9 will deform and push the water in the water chamber back to the pipeline system, thereby maintaining the water pressure in the pipeline system stable. In water supply systems such as variable frequency water supply, air pressure water supply and fire protection, the main function of the water replenishment expansion tank 9 is to buffer the water hammer impact generated when the water pump starts and stops and the system valve is opened and closed, so as to prevent water hammer from damaging the pipeline and components on the system. During the low peak period of water use, the existence of the water replenishment expansion tank 9 can ensure sufficient dormancy time for the water pump, which not only saves energy but also prolongs the service life of the water pump. The outside of the water replenishment expansion tank 9 is connected to a soft water tank 7 through a pipeline. The boiler needs a large amount of water to operate normally, and the boiler soft water tank 7, as a water storage tank for the boiler water source, can store enough water. In this way, whenever the boiler needs water, it can find the required water in the boiler soft water tank 7. The normal operation of the boiler requires a certain pressure, and the boiler soft water tank 7 can balance the water pressure inside and outside the boiler to prevent the boiler from malfunctioning due to excessive or low water pressure. The water stored in the boiler soft water tank 7 will undergo corresponding temperature changes as the temperature in the boiler changes. Therefore, the boiler soft water tank 7 can adjust the water temperature inside the boiler to a certain extent, making the working state of the boiler more stable.

[0023] In this embodiment, a base 11 is installed at the bottom of the host 1 , and an electric control cabinet 16 is also installed on the base 11 for controlling the operation of the host 1 .

[0024] Specifically, a sewage pipe 12 is connected to the bottom of one end of the main machine 1 for sewage discharge operation.

[0025] Furthermore, the heat exchange device 2 includes a plurality of horizontally arranged heat exchange tubes, and headers are installed at the ends of the heat exchange tubes for water to flow through and perform heat exchange with the heat in the host 1, thereby increasing the water temperature.

[0026] Furthermore, an exhaust valve 15 is provided at the top of one end of the heat exchange device 2 for exhausting the heat exchange device 2 to ensure constant internal pressure, and a sewage valve 14 is provided at the bottom of one end of the heat exchange device 2 for regularly discharging internal sewage.

[0027] Furthermore, a water level electrode 13 is installed on the middle outer wall of one side of the host 1 for monitoring the water level.

[0028] Furthermore, a circulation pump 6 is installed on the return water pipeline 3 to increase the flow rate of water in and out of the main unit 1. A water replenishment pump 71 is installed on the connecting pipeline between the soft water tank 7 and the water replenishment expansion tank 9 to increase the water replenishment speed through the water replenishment pump 71.

[0029] Furthermore, a water treatment device 10 is installed on the base 11, and the water treatment device 10 is connected to the soft water tank 7 through a pipeline, which is used to remove calcium and magnesium ions in the raw water, prevent scaling inside the boiler, improve the utilization rate of the boiler heat exchange, ensure the safe and stable operation of the boiler, ensure the safe and economical operation of the boiler, improve the boiler efficiency, extend the service life of the boiler, and save energy.

[0030] When the integrated electric vacuum boiler of the utility model is used, the integrated electric vacuum boiler is started: first, the electric control cabinet 16 is started, and the start of the main engine 1 is controlled by the electric control cabinet 16. When the boiler needs to be replenished with water, the valve of the water replenishment expansion tank 9 is opened, and the water in the soft water tank 7 is injected into the boiler through the water replenishment pump 71. When the water in the boiler passes through the heat exchange device 2, the water flow in the header is heat-exchanged with the heat in the main engine 1, thereby heating the water. After the water in the boiler is heated, it returns to the boiler through the return water pipeline 3, and the flow rate of water in and out of the main engine 1 is increased by the circulation pump 6, thereby accelerating the heat exchange process. During the heat exchange process, gas and sewage may be generated. At this time, the gas is discharged through the exhaust valve 15, and the sewage is regularly discharged through the sewage valve 14. The water level in the boiler is monitored in real time by the water level electrode 13 to ensure that the water level is within the normal range. The water treatment equipment 10 on the base 11 will pre-treat the water in the soft water tank 7, remove the calcium and magnesium ions in the raw water, and prevent scale from forming inside the boiler.

[0031] Finally, it should be noted that the electronic components in the host 1 in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An integrated electric vacuum boiler, comprising a main unit (1), characterized in that: A heat exchange device (2) is installed on the upper part of the main unit (1); a return water pipeline (3) and a water outlet pipe (4) are connected to the top of one end of the heat exchange device (2); the outer end of the return water pipeline (3) is externally connected to the return water pipeline of the heating system through the return water pipe (5); the outer end of the water outlet pipe (4) is externally connected to the water outlet pipe of the heating system; the outer end of the heat exchange device (2) is also connected to a water supply pipeline (8); the outer end of the water supply pipeline (8) is connected to a water supply expansion tank (9); the outer side of the water supply expansion tank (9) is connected to a soft water tank (7) through a pipeline.

2. The integrated electric vacuum boiler according to claim 1, characterized in that: A base (11) is installed at the bottom of the main machine (1), and an electric control cabinet (16) is also installed on the base (11).

3. The integrated electric vacuum boiler according to claim 1, characterized in that: A sewage pipe (12) is connected to the bottom of one end of the main machine (1).

4. The integrated electric vacuum boiler according to claim 1, characterized in that: The heat exchange device (2) comprises a plurality of horizontally arranged heat exchange tubes, and headers are installed at the ends of the heat exchange tubes.

5. The integrated electric vacuum boiler according to claim 4, characterized in that: An exhaust valve (15) is provided at the top of one end of the heat exchange device (2), and a sewage valve (14) is provided at the bottom of one end of the heat exchange device (2).

6. The integrated electric vacuum boiler according to claim 1, characterized in that: A water level electrode (13) is installed on the middle outer wall of one side of the main machine (1).

7. The integrated electric vacuum boiler according to claim 1, characterized in that: A circulation pump (6) is installed on the return water pipeline (3), and a water replenishment pump (71) is installed on the connecting pipeline between the soft water tank (7) and the water replenishment expansion tank (9).

8. The integrated electric vacuum boiler according to claim 2, characterized in that: A water treatment device (10) is also installed on the base (11).

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