Electric heating type steam air conditioner using steam generator for heating

Abstract

The utility model relates to an electric heating type steam air conditioner using a steam generator for heating. The electric heating type steam air conditioner comprises a heat preservation water tank, a water pump, at least one electric heating type steam generator, a steam-water separator and at least one heat exchanger. A water inlet of the water pump is communicated with the heat preservation water tank through a pipeline, a water outlet of the water pump is communicated with a water inlet of the at least one electric heating type steam generator through a pipeline, a steam outlet of the at least one electric heating type steam generator is communicated with an inlet of the steam-water separator through a pipeline, and a water outlet of the steam-water separator is communicated with the heat preservation water tank through a pipeline. A steam outlet of the steam-water separator is communicated with an inlet of at least one heat exchanger through a pipeline, and an outlet of the at least one heat exchanger is communicated with the heat preservation water tank through a pipeline; compared with an existing central heating mode, the heating device is more economical and practical, and the purpose of heating a certain area in an instant heating mode independently in a high-temperature steam mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating ventilation and air conditioning, in particular to an electric steam air conditioner heated by a steam generator. Background Art

[0002] In the existing heating technology, floor heating and radiators are usually used in the north. When hot water heating is adopted, central heating is usually adopted, that is, hot water is centrally generated and transported to each user through pipelines. This way of central hot water heating not only has a large investment cost, but also provides 24-hour heating for all rooms of users. When separate time-sharing heating is carried out in a single area or room of a user according to the user's needs, it is difficult to achieve by using the central heating method. At the same time, the heat loss of the central heating pipeline reaches 30-40%, which will increase energy consumption itself. Moreover, heating is provided 24 hours a day in winter, and the heating mode of turning on and off as needed cannot be realized. There is also heating by the traditional air conditioner. The traditional air conditioner heats based on the principle of a compressor, is greatly affected by the ambient temperature, warms up slowly in extremely cold weather, is not warm, and the air is dry. Content of the Utility Model

[0003] In order to solve the technical problems in the prior art that regional central heating of users through long-distance transmission pipelines and circulation pumps will cause energy waste and non-stop heating for 24 hours in winter, etc., the utility model provides an electric steam air conditioner heated by a steam generator.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] An electric steam air conditioner heated by a steam generator includes a heat preservation water tank, a water pump, at least one electric steam generator, a steam-water separator and at least one heat exchanger; the water inlet of the water pump is communicated with the heat preservation water tank through a pipeline, the water outlet of the water pump is communicated with the water inlet of at least one electric steam generator through a pipeline, the steam outlet of at least one electric steam generator is communicated with the inlet of the steam-water separator through a pipeline, the water outlet of the steam-water separator is communicated with the heat preservation water tank through a pipeline, the steam outlet of the steam-water separator is communicated with the inlet of at least one heat exchanger through a pipeline, and the outlet of at least one heat exchanger is communicated with the heat preservation water tank through a pipeline; wherein, each heat exchanger is at least equipped with one cooling fan.

[0006] The beneficial effects of the present utility model are as follows: By using an electrothermal steam generator to generate steam, and using the steam to form convection with air through a heat exchanger and a fan to quickly heat a specified area. It can be used immediately when turned on and not used when turned off. There is no need for 24-hour heating like central heating. It can also heat the specified space separately by time and section as needed, and the heating mode can be adjusted arbitrarily for time and space. Compared with central heating, it can flexibly control the heating mode to achieve the purpose of energy conservation and consumption reduction; there is no need for outdoor and indoor pipelines and heating terminals such as radiators and floor heating. Compared with the existing central heating, the present utility model is more economical and practical.

[0007] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0008] Further, it further includes a plurality of first valves and a plurality of second valves. There are a plurality of the electrothermal steam generators and a plurality of the heat exchangers. The plurality of electrothermal steam generators correspond to the plurality of first valves one by one, and the plurality of heat exchangers correspond to the plurality of second valves one by one;

[0009] One end of all the first valves is connected to the water outlet of the water pump through a pipeline, and the other end of each first valve is connected to the water inlet of the corresponding electrothermal steam generator through a pipeline;

[0010] One end of all the second valves is connected to the steam outlet of the steam-water separator through a pipeline, the other end of each second valve is connected to the inlet of the corresponding heat exchanger through a pipeline, and the outlets of all the heat exchangers are connected to the heat preservation water tank through a pipeline.

[0011] The beneficial effect of adopting the above further solution is that by setting a plurality of electrothermal steam generators and a plurality of heat exchangers, it is possible to turn on a plurality or one electrothermal steam generator and heat exchanger as needed to effectively heat houses of different space sizes.

[0012] Further, the electrothermal steam generator includes a heat preservation pipe and a safety valve. A hot water pipe, an electric heating wire, a heat insulation layer, and a coil are arranged inside the heat preservation pipe; the heat preservation pipe is a steel pipe, the electric heating wire is wound outside the heat preservation pipe, the heat insulation layer wraps the heat preservation pipe and the electric heating wire, one end of the coil is connected to one end of the hot water pipe, the other end of the coil is connected to the other end of the first valve through a pipeline, the other end of the hot water pipe is connected to the inlet of the safety valve through a pipeline, and the outlet of the safety valve is connected to the inlet of the steam-water separator through a pipeline.

[0013] The beneficial effect of adopting the above further solution is that the hot water pipe heated by the heating wire heats the water to form saturated steam / superheated steam, and the saturated steam / superheated steam is discharged through the safety valve. The steam forms convective heating of the indoor air through the heat exchanger and the fan, so as to realize the regional heating of the heating output by the equipment within the action range.

[0014] Further, the electric heating steam generator further includes a second pressure relief valve. One end of the second pressure relief valve is communicated with one end of the hot water pipe through a pipeline, and the other end of the second pressure relief valve is communicated with the atmosphere.

[0015] The beneficial effect of adopting the above further solution is that by setting the second pressure relief valve, the water and steam in the hot water pipe can be discharged when needed, preventing potential safety hazards caused by excessive air pressure in the hot water pipe after the safety valve is blocked.

[0016] Further, it further includes a first pressure relief valve. The inlet of the first pressure relief valve is communicated with the inlet of the steam-water separator through a pipeline, and the outlet of the first pressure relief valve is communicated with the atmosphere.

[0017] The beneficial effect of adopting the above further solution is that by setting the first pressure relief valve, the steam pressure at the inlet of the steam-water separator can be adjusted through the first pressure relief valve.

[0018] Further, a ventilation pipe is vertically arranged on the heat preservation water tank. The lower end of the ventilation pipe is communicated with the heat preservation water tank, and the upper end of the ventilation pipe is communicated with the atmosphere.

[0019] The beneficial effect of adopting the above further solution is that by setting the ventilation pipe, the heat preservation water tank can be set as a sealed box body, and the heat preservation water tank is communicated with the atmosphere through the ventilation pipe, reducing the heat loss efficiency of the heat preservation water tank.

[0020] Further, a water replenishing pipe is also arranged on the heat preservation water tank. One end of the water replenishing pipe is communicated with the heat preservation water tank, and the other end of the water replenishing pipe is used for connecting to the tap water pipe.

[0021] The beneficial effect of adopting the above further solution is that by setting the water replenishing pipe, tap water can be replenished into the heat preservation water tank through the water replenishing pipe.

[0022] Further, one end of the water replenishing pipe is inserted into the heat preservation water tank. A water replenishing valve is arranged at one end of the water replenishing pipe. One end of the water replenishing valve is communicated with one end of the water replenishing pipe, and the other end of the water replenishing valve is communicated with the heat preservation water tank. The water replenishing valve is a float valve.

[0023] The beneficial effect of adopting the above further solution is that by setting the float valve, when the water level in the heat preservation water tank is lower than the preset water level, the float valve can be opened to automatically replenish water into the heat preservation water tank.

[0024] Further, in the vertical direction, the position of the steam-water separator is higher than the positions of the electrothermal steam generator and the heat preservation water tank.

[0025] The beneficial effect of the present utility model is that by placing the heat exchanger at a position higher than the positions of the steam-water separator, the electrothermal steam generator and the heat preservation water tank, the pressure generated by the steam can flow into the radiator by itself, and the steam after heat dissipation condenses to generate condensed water. Under the action of the steam pressure and the gravity of the condensed water, the condensed water flows back to the heat preservation water tank when there is no power.

[0026] Further, it further includes a frame, and the electrothermal steam generator, the steam-water separator and the heat exchanger are all fixed on the frame.

[0027] The beneficial effect of the present utility model is that: by setting the frame, each device and component can be fixed into a whole through the frame, which is convenient for installation and placement. Description of the Drawings

[0028] Figure 1 is a structural schematic diagram of the present utility model Figure 1 ;

[0029] Figure 2 is a structural schematic diagram of the present utility model Figure 2 ;

[0030] Figure 3 is a structural schematic diagram of the electrothermal steam generator.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1 - Heat preservation water tank, 2 - Water pump, 3 - Electrothermal steam generator, 301 - Hot water pipe, 302 - Electric heating wire, 303 - Heat preservation pipe, 304 - Heat insulation layer, 305 - Coiled pipe, 306 - Safety valve, 307 - Second pressure relief valve, 4 - First valve, 5 - First pressure relief valve, 6 - Steam-water separator, 7 - Second valve, 8 - Heat exchanger, 9 - Make-up water pipe, 10 - Make-up water valve, 11 - Vent pipe, 12 - Frame, 13 - Machine foot, 14 - Exchanger support, 15 - Separator support, 16 - Generator support. Detailed Embodiments

[0033] The principles and features of the present utility model are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0034] As Figure 1As shown in the figure, this embodiment provides a steam air conditioner that uses an electric heating steam generator for heating, which includes a heat preservation water tank 1, a water pump 2, at least one electric heating steam generator 3, a steam-water separator 6, and at least one heat exchanger 8. The water inlet of the water pump 2 is connected to the heat preservation water tank 1 through a pipeline, the water outlet of the water pump 2 is connected to the water inlets of at least one electric heating steam generator 3 through a pipeline, the steam outlets of at least one electric heating steam generator 3 are connected to the inlet of the steam-water separator 6 through a pipeline, the water outlet of the steam-water separator 6 is connected to the heat preservation water tank 1 through a pipeline, the steam outlet of the steam-water separator 6 is connected to the inlet of at least one heat exchanger 8 through a pipeline, and the outlet of at least one heat exchanger 8 is connected to the heat preservation water tank 1 through a pipeline. Among them, each heat exchanger 8 is at least equipped with a cooling fan to accelerate the convection between the heat exchanger 8 and the surrounding air through the cooling fan, so as to realize the heat exchange between the high-temperature steam in the heat exchanger 8 and the surrounding air through air convection.

[0035] The steam air conditioner that uses an electric heating steam generator for heating further includes a plurality of first valves 4, a plurality of second valves 7, and a first pressure relief valve 5. There are multiple electric heating steam generators 3 and multiple heat exchangers 8. The multiple electric heating steam generators 3 correspond to the multiple first valves 4 one by one, and the multiple heat exchangers 8 correspond to the multiple second valves 7 one by one. One ends of all the first valves 4 are connected to the water outlet of the water pump 2 through a pipeline, and the other end of each first valve 4 is connected to the water inlet of the corresponding electric heating steam generator 3 through a pipeline. One ends of all the second valves 7 are connected to the steam outlet of the steam-water separator 6 through a pipeline, the other end of each second valve 7 is connected to the inlet of the corresponding heat exchanger 8 through a pipeline, and the outlets of all the heat exchangers 8 are connected to the heat preservation water tank 1 through a pipeline. Among them, both the first valve 4 and the second valve 7 can be set as electromagnetic reversing valves, and the opening and closing of the electromagnetic reversing valves are controlled by a PLC controller. The inlet of the first pressure relief valve 5 is connected to the inlet of the steam-water separator 6 through a pipeline, and the outlet of the first pressure relief valve 5 is connected to the atmosphere. By setting the first pressure relief valve 5, the steam pressure at the inlet of the steam-water separator 6 can be adjusted through the first pressure relief valve 5.

[0036] By setting a plurality of electric heating steam generators 3 and a plurality of heat exchangers 8, it is possible to turn on multiple or one electric heating steam generator 3 and heat exchanger 8 as needed to effectively heat houses of different space sizes. A dry-burning temperature limiter is provided on each electric heating steam generator 3. By setting the dry-burning temperature limiter, it is possible to prevent the electric heating steam generator 3 from being burned out due to excessive heating temperature.

[0037] The electrothermal steam generator 3 can be a pressureless dry steam generator, a pressurized wet steam generator, or a pressurized dry steam generator. Compared with wet steam, dry steam carries more energy and has better heat transfer effect. In a heating system, dry steam can transfer heat to the radiator more effectively, thus increasing the indoor temperature and making the heating effect better. In addition, the flow rate of dry steam in the pipeline is greater than that of water, generally 25 - 40 m / s, which makes the heating system easy to start quickly and has a high heat transfer efficiency in the heat exchange equipment. These characteristics give dry steam obvious advantages in the heating system. Wet steam is a kind of steam with both temperature and humidity, and its physical properties are different from those of dry steam, so special attention needs to be paid in actual use. The application of wet steam in the heating system may not be as direct and efficient as that of dry steam. Although pressurized dry steam has a higher pressure and can provide more heat, in actual applications, its efficiency and applicability may be limited to a certain extent, and it is not as direct and obvious as the performance of dry steam in the heating system. Therefore, the electrothermal steam generator 3 preferably uses a dry steam generator. That is, the electrothermal steam generator 3 produces dry steam.

[0038] In summary, considering the high heat transfer efficiency and good heating effect of dry steam, it is an ideal choice to select dry steam as the heating medium.

[0039] Specifically, a vent pipe 11 is vertically arranged on the heat preservation water tank 1. The lower end of the vent pipe 11 is communicated with the heat preservation water tank 1, and the upper end of the vent pipe 11 is communicated with the atmosphere. By setting the vent pipe 11, the heat preservation water tank 1 can be set as a sealed box body, and the heat preservation water tank 1 is communicated with the atmosphere through the vent pipe 11 to reduce the heat loss efficiency of the heat preservation water tank 1.

[0040] Specifically, a water replenishing pipe 9 is also arranged on the heat preservation water tank 1. One end of the water replenishing pipe 9 is communicated with the heat preservation water tank 1, and the other end of the water replenishing pipe 9 is used to connect to the tap water pipe. One end of the water replenishing pipe 9 is inserted into the heat preservation water tank 1. A water replenishing valve 10 is arranged at one end of the water replenishing pipe 9. One end of the water replenishing valve 10 is communicated with one end of the water replenishing pipe 9, and the other end of the water replenishing valve 10 is communicated with the heat preservation water tank 1. The water replenishing valve 10 is a float valve. By setting the water replenishing pipe 9, tap water can be replenished into the heat preservation water tank 1 through the water replenishing pipe 9. By setting the float valve, when the water level in the heat preservation water tank 1 is lower than the preset water level, the float valve can be opened to automatically replenish water to the heat preservation water tank 1.

[0041] As Figure 2As shown in the figure, a frame 12 is further provided, and the electric heating steam generator 3, the steam-water separator 6, and the heat exchanger 8 are all fixed on the frame 12. In the vertical direction, the position of the heat exchanger 8 is higher than the positions of the steam-water separator 6, the electric heating steam generator 3, and the heat preservation water tank 1. By placing the heat exchanger at a position higher than the positions of the steam-water separator 6, the electric heating steam generator 3, and the heat preservation water tank 1, the pressure generated by the steam and the gravity of the condensed water can make the condensed water flow back to the heat preservation water tank when there is no power. The heat preservation water tank 1 is fixed on the frame 12 by screws, and the steam generator 3 is fixed to the heat preservation water tank 1 through a generator support 16. The generator support 16 can be welded to the frame 12, and the steam generator 3 is fixed to the generator support 16 by screws. The exchanger support 14 and the separator support 15 are both welded to the frame 12. Finally, the steam-water separator 6 is fixed to the separator support 15 by screws, and the heat exchanger 8 is fixed to the exchanger support 14 by screws. The lower end of the frame 12 is also welded with feet 13, which is convenient for using the feet 13 to support the entire frame 12. By placing the heat exchanger 8 at a high position, it is convenient for the condensed water after heat exchange to flow back to the heat preservation water tank 1. By providing the frame 12, various devices and components can be fixed into a whole through the frame, which is convenient for installation and placement.

[0042] As Figure 1 and Figure 3 As shown in the figure, the electric heating steam generator 3 includes a heat preservation pipe 303, a second pressure relief valve 307, and a safety valve 306. A hot water pipe 301, an electric heating wire 302, a heat insulation layer 304, and a coil pipe 305 are arranged inside the heat preservation pipe 303; the heat preservation pipe 303 is a steel pipe, the electric heating wire 302 is wound outside the heat preservation pipe 303, the heat insulation layer 304 wraps the heat preservation pipe 303 and the electric heating wire 302, one end of the coil pipe 305 is communicated with one end of the hot water pipe 301, the other end of the coil pipe 305 is communicated with the other end of the first valve 4 through a pipeline, the other end of the hot water pipe 301 is communicated with the inlet of the safety valve 306 through a pipeline, and the outlet of the safety valve 306 is communicated with the inlet of the steam-water separator 6 through a pipeline. One end of the second pressure relief valve 307 is communicated with one end of the hot water pipe 301 through a pipeline, and the other end of the second pressure relief valve 307 is communicated with the atmosphere. The hot water pipe after being heated by the electric heating wire heats the water to form saturated steam / superheated steam, and the saturated steam / superheated steam is discharged through the safety valve. The high-temperature steam is used to form convective heating of the indoor air through the heat exchanger and the fan, so as to realize the heating of the area within the heating radiation range of the equipment. By setting the second pressure relief valve 307, the water and steam in the hot water pipe 301 can be discharged when needed, preventing potential safety hazards caused by excessive air pressure in the hot water pipe 301 after the safety valve 306 is blocked.

[0043] It should be noted that the pipes in the present utility model are all steel pipes or high-temperature resistant water pipes, and at the same time, all pipes are insulated pipes. The specific setting method of the insulated pipes can be achieved by wrapping asbestos or heat-insulating cotton outside the ordinary steel pipes for heat insulation.

[0044] The present utility model generates steam by using an electrothermal steam generator, and uses the steam to form a convection with air through a heat exchanger and a fan to quickly heat a designated area. It can be used immediately when turned on and not used when turned off. There is no need for 24-hour heating like central heating. It can also heat the designated space separately by time and in sections as needed, and the time and space can be adjusted arbitrarily. Compared with central heating, the heating mode can be flexibly controlled to achieve the purpose of energy conservation and consumption reduction; there is no need for outdoor and indoor pipes and heating terminals such as radiators and floor heating. Compared with the existing central heating, the present utility model is more economical and practical.

[0045] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the concept and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric steam air conditioner using a steam generator for heating, characterized in that: The invention comprises an insulated water tank (1), a water pump (2), at least one electric steam generator (3), a steam-water separator (6) and at least one heat exchanger (8); the water inlet of the water pump (2) is connected to the insulated water tank (1) through a pipeline, the water outlet of the water pump (2) is connected to the water inlet of at least one electric steam generator (3) through a pipeline, the steam outlet of at least one electric steam generator (3) is connected to the inlet of the steam-water separator (6) through a pipeline, the water outlet of the steam-water separator (6) is connected to the insulated water tank (1) through a pipeline, the steam outlet of the steam-water separator (6) is connected to the inlet of at least one heat exchanger (8) through a pipeline, and the outlet of at least one heat exchanger (8) is connected to the insulated water tank (1) through a pipeline; the position of the heat exchanger (8) is higher than the position of the steam-water separator (6); wherein each heat exchanger (8) is equipped with at least one cooling fan.

2. The electric heating steam air conditioner using a steam generator for heating according to claim 1 is characterized in that: It also includes a plurality of first valves (4) and a plurality of second valves (7), the electric steam generator (3) and the heat exchanger (8) are each provided with a plurality, the plurality of electric steam generators (3) correspond one-to-one to the plurality of first valves (4), and the plurality of heat exchangers (8) correspond one-to-one to the plurality of second valves (7); One end of all the first valves (4) is connected to the water outlet of the water pump (2) through a pipeline, and the other end of each of the first valves (4) is connected to the water inlet of the corresponding electric steam generator (3) through a pipeline; One end of all the second valves (7) is connected to the steam outlet of the steam-water separator (6) through a pipeline, the other end of each second valve (7) is connected to the corresponding inlet of the heat exchanger (8) through a pipeline, and the outlets of all the heat exchangers (8) are connected to the insulated water tank (1) through a pipeline.

3. The electric heating steam air conditioner using a steam generator for heating according to claim 2 is characterized in that: The electric steam generator (3) comprises an insulation pipe (303) and a safety valve (306), wherein a hot water pipe (301), an electric heating wire (302), an insulation layer (304), and a coil (305) are arranged inside the insulation pipe (303); the insulation pipe (303) is a steel pipe, the electric heating wire (302) is wound around the outside of the insulation pipe (303), the insulation layer (304) wraps the insulation pipe (303) and the electric heating wire (302), one end of the coil (305) is connected to one end of the hot water pipe (301), the other end of the coil (305) is connected to the other end of the first valve (4) through a pipeline, the other end of the hot water pipe (301) is connected to the inlet of the safety valve (306) through a pipeline, and the outlet of the safety valve (306) is connected to the inlet of the steam-water separator (6) through a pipeline.

4. The electric heating steam air conditioner using a steam generator for heating according to claim 3 is characterized in that: The electric steam generator (3) further comprises a second pressure relief valve (307), one end of the second pressure relief valve (307) being connected to one end of the hot water pipe (301) via a pipeline, and the other end of the second pressure relief valve (307) being connected to the atmosphere.

5. The electric heating steam air conditioner using a steam generator for heating according to claim 1, characterized in that: It also comprises a first pressure relief valve (5), the inlet of the first pressure relief valve (5) is connected to the inlet of the steam-water separator (6) through a pipeline, and the outlet of the first pressure relief valve (5) is connected to the atmosphere.

6. The electric heating steam air conditioner using a steam generator for heating according to claim 1, characterized in that: A vent pipe (11) is vertically arranged on the thermal insulation water tank (1), the lower end of the vent pipe (11) is connected to the thermal insulation water tank (1), and the upper end of the vent pipe (11) is connected to the atmosphere.

7. The electric heating steam air conditioner using a steam generator for heating according to claim 1 is characterized in that: The thermal insulation water tank (1) is also provided with a water supply pipe (9), one end of which is in communication with the thermal insulation water tank (1), and the other end of which is used to be connected to a tap water pipe.

8. The electric heating steam air conditioner using a steam generator for heating according to claim 7 is characterized in that: One end of the water supply pipe (9) is inserted into the thermal insulation water tank (1), and one end of the water supply pipe (9) is provided with a water supply valve (10). One end of the water supply valve (10) is connected to one end of the water supply pipe (9), and the other end of the water supply valve (10) is connected to the thermal insulation water tank (1). The water supply valve (10) is a float valve.

9. The electric heating steam air conditioner using a steam generator for heating according to claim 1, characterized in that: In the vertical direction, the position of the steam-water separator (6) is higher than the position of the electric steam generator (3) and the position of the thermal insulation water tank (1).

10. The electric heating steam air conditioner using a steam generator for heating according to claim 1, characterized in that: It also comprises a frame (12), on which the electric steam generator (3), the steam-water separator (6) and the heat exchanger (8) are all fixed.

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