Steam heating assembly

Abstract

The utility model relates to a steam heating assembly which comprises a steam generator and further comprises an external water supplementing container arranged on the outer side of the steam generator, one end of the water supplementing container is connected with the steam generator, the other end of the water supplementing container is connected with a water inlet device, and the steam generator, the water supplementing container and the water inlet device are sequentially connected with one another and provided with cold water channels therebetween. The water supplementing container is provided with the water level sensor used for opening and closing the cold water channel in a matched mode, the water level sensor is arranged on the water supplementing container separated from the steam generator, the structure that the water level sensor is arranged in the steam generator is omitted, and excessive water scale is effectively prevented from being attached to the water level sensor; and the detection precision of the water level sensor is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of steam heating, in particular to a steam heating assembly. Background Art

[0002] A steam generator is provided on one side of a soymilk machine. The high-temperature gas generated by the steam generator is transported to the soymilk machine through a pipeline. A water level sensor for detecting the liquid level height is provided in the steam generator. Since water is heated to generate steam, the steam flows in the inner cavity of the steam generator. With long-term use, scale adheres to the water level sensor (for example, when boiling water in a hot water kettle, scale will be generated on its inner wall and bottom wall). When the scale adheres to the water level sensor, the detection accuracy of the water level sensor is affected, resulting in abnormal operation of the steam generator, and further affecting the flow rate of the high-temperature gas transported to the soymilk machine. Content of the Utility Model

[0003] The purpose of the utility model is to provide a steam heating assembly. By arranging a water replenishing container outside the steam generator and providing a water level sensor on the water replenishing container, the water level sensor is effectively separated from the steam generator, avoiding excessive scale adhesion on the water level sensor, and further avoiding affecting the detection accuracy of the water level sensor.

[0004] The purpose of the utility model is achieved as follows:

[0005] A steam heating assembly includes a steam generator, and further includes a water replenishing container externally arranged outside the steam generator. One end of the water replenishing container is connected to the steam generator, and the other end of the water replenishing container is connected to a water inlet device. The steam generator, the water replenishing container, and the water inlet device are sequentially connected and there is a cold water channel between them. A water level sensor for cooperating to open and close the cold water channel is provided on the water replenishing container. By arranging the water level sensor on the water replenishing container separated from the steam generator and canceling the structure of having a water level sensor in the steam generator, it effectively avoids excessive scale adhesion on the water level sensor, and further avoids affecting the detection accuracy of the water level sensor.

[0006] A ventilation pipe for balancing the air pressures of each other is provided between the steam generator and the water replenishing container. One end of the ventilation pipe communicates with the inner cavity of the steam generator, and the other end of the ventilation pipe communicates with the inner cavity of the water replenishing container. If there is no ventilation pipe, the steam generated by the steam generator makes the air pressure in the inner cavity of the steam generator greater than the air pressure in the inner cavity of the water replenishing container. Due to the large air pressure in the inner cavity of the steam generator, the cold water in the water replenishing container cannot enter the steam generator, resulting in abnormal operation of the steam generator and the water replenishing container. If a ventilation pipe is provided, the excess gas in the steam generator will enter the water replenishing container along the ventilation pipe to balance the air pressures between the steam generator and the water replenishing container.

[0007] The water level sensor is provided with a movable detection end that has a first position state and a second position state according to the water level condition of the water replenishing container. The movable detection end is movably arranged on the water level sensor;

[0008] The height position of the floating detection position of the water level sensor on the water replenishing container is lower than the ventilation position of the ventilation pipe, ensuring that the ventilation pipe of the water replenishing container will not be blocked by water.

[0009] When the movable detection end is in the first position state, the cold water channels among the steam generator, the water replenishing container, and the water inlet device are in a connected state to open the water inlet waterway among the steam generator, the water replenishing container, and the water inlet device;

[0010] When the movable detection end is in the second position state, the cold water channels among the steam generator, the water replenishing container, and the water inlet device are in a closed state to cut off the water inlet waterway among the steam generator, the water replenishing container, and the water inlet device.

[0011] The water level position height in the water replenishing container is detected by the water level sensor. When the water level in the water replenishing container is too low, water enters. When the water level in the water replenishing container is too high, the water replenishing container does not take in water, so that the water replenishing container cannot supply water to the steam generator.

[0012] The water level sensor is electrically connected to the control module through a first wire. A switch valve is provided on the cold water channels among the steam generator, the water replenishing container, and the water inlet device. The switch valve is electrically connected to the control module through a second wire; the water level sensor detects the water level condition of the water replenishing container and feeds it back to the control module. The control module acts on the switch valve through the detection signal of the water level sensor to open and close the switch valve, thereby opening and closing the cold water channels among the steam generator, the water replenishing container, and the water inlet device;

[0013] The heating element is arranged at the bottom of the lower shell. An electronic NTC temperature sensor and a mechanical snap-action thermostat are provided corresponding to the heating element at the bottom of the lower shell to prevent the steam generator from dry burning;

[0014] The water source inlet end is arranged on the side or bottom of the water replenishing container. It is possible to arrange the water source inlet end on the bottom to replace the structure where the water source inlet end is arranged on the side of the water replenishing container, solve the problem that the liquid entering from the side of the water replenishing container easily impacts the floating ball of the water level sensor, and avoid the technical problem of the floating ball floating due to the impact of the water flow and losing its effectiveness.

[0015] A baffle plate is provided in the inner cavity of the steam generator. The baffle plate divides the inner cavity of the steam generator into a steam generation cavity and a cold water inlet cavity that are connected and communicate with each other. One end of the cold water inlet cavity communicates with a water replenishing container. A heating element is provided on the outer side of the steam generation cavity. When the heating element heats and acts on the steam generation cavity, steam is generated in the steam generation cavity. The baffle plate blocks the cold water in the cold water inlet cavity from flowing into the steam generation cavity, preventing the cold water in the cold water inlet cavity from quickly entering the steam generation cavity when the steam generation cavity is heated, effectively avoiding the mixing of the cold water and the water being heated in the steam generation cavity, effectively avoiding the reduction of the temperature of the steam generation cavity, and further avoiding the influence on the steam generation efficiency. The baffle plate effectively slows down the speed of the cold water in the cold water inlet cavity from entering the steam generation cavity.

[0016] There is a water inlet gap between one end of the baffle plate and the inner cavity of the steam generator. The steam generation cavity and the cold water inlet cavity are connected and communicate with each other through the water inlet gap. By setting the water inlet gap, the speed of the cold water in the cold water inlet cavity from entering the steam generation cavity is slowed down.

[0017] A pressure gauge for detecting the air pressure in its inner cavity is provided on the steam generator. The water-vapor separation device includes a cover body provided on the inner cavity of the steam generator. The cover body is provided with an air outlet communicating with the air outlet end of the steam generator. The inner diameter of the inner cavity of the cover body gradually decreases towards the air outlet end of the steam generator. The cover body plays a role in blocking the liquid. When the liquid (water vapor) reaches the cover body, due to the fact that the inner diameter of the inner cavity of the cover body gradually decreases towards the air outlet end of the steam generator, the liquid (water vapor) falls back to the bottom of the inner cavity of the steam generator under the blocking action of the cover body.

[0018] The steam generator includes an upper shell provided with a steam output port and a lower shell provided with a heating element. A cold water inlet is provided on the lower shell. A cold water outlet is provided on the water replenishing container. An inlet pipeline is provided between the cold water outlet and the cold water inlet. A water source inlet end for connecting a water inlet device is provided on the water replenishing container. The water source inlet end, the inlet pipeline, the cold water outlet, and the cold water inlet sequentially form a cold water channel among the steam generator, the water replenishing container, and the water inlet device.

[0019] A connecting flange for fixing a water level sensor is provided on the water replenishing container. A first fastener is provided on the water level sensor. A second fastener sleeved on the water level sensor is provided on the outer side of the connecting flange. The first fastener and the second fastener fix the water level sensor on the connecting flange. The water level sensor is detachably installed on the connecting flange through the second fastener, which is beneficial for replacing the water level sensor on the water replenishing container in the later stage.

[0020] The water inlet device includes a water pump connected to the cold water channel and used for increasing the water inlet pressure, and a carrier for storing the water source;

[0021] A hot air delivery pipe is provided on the steam generator and extends into the inner cavity of the soybean milk machine from the side or bottom of the soybean milk machine. A silencer is provided at the output end of the hot air delivery pipe, and the output end of the hot air delivery pipe is inserted into the silencer. The silencer is provided with a plurality of hot air output holes arranged at intervals, avoiding the technical problem of loud noise caused by hot air being concentrated and delivered from the output end of the hot air delivery pipe into the soybean milk machine. The hot air is output from each hot air output hole of the silencer, improving the fluidity and diffusibility of the hot air.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The water level sensor is arranged on the water replenishing container separated from the steam generator, canceling the structure of having a water level sensor inside the steam generator. Since only cold water enters the water replenishing container, it effectively avoids excessive scale adhesion on the water level sensor, thereby avoiding affecting the detection accuracy of the water level sensor. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the connection between the steam generator and the water replenishing container according to an embodiment of the present utility model.

[0025] Figure 2 It is a schematic exploded structural diagram of the steam generator according to an embodiment of the present utility model.

[0026] Figure 3 It is a schematic structural diagram of the inner cavity of the steam generator according to an embodiment of the present utility model.

[0027] Figure 4 It is a schematic exploded structural diagram of the water replenishing container according to an embodiment of the present utility model.

[0028] Figure 5 It is a schematic structural diagram of the pipeline connection between the steam heating assembly and the soybean milk machine according to an embodiment of the present utility model.

[0029] Figure 6 It is a schematic structural diagram of the pipeline connection between the steam heating assembly and the soybean milk machine according to another embodiment of the present utility model.

[0030] Figure 7 It is a schematic three-dimensional structural diagram of the pipeline connection between the steam heating assembly and the soybean milk machine according to another embodiment of the present utility model.

[0031] Figure 8 It is a schematic structural diagram of the water source inlet end arranged at the bottom of the water replenishing container according to another embodiment of the present utility model. Detailed Embodiments

[0032] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0033] See Figures 1 - 8, A steam heating assembly, including a steam generator 1, further includes a water replenishing container 2 externally disposed outside the steam generator 1. One end of the water replenishing container 2 is connected to the steam generator 1, and the other end of the water replenishing container 2 is connected to a water inlet device 3. The steam generator 1, the water replenishing container 2, and the water inlet device 3 are connected in sequence and there is a cold water channel between them. A water level sensor 4 for cooperating to open and close the cold water channel is provided on the water replenishing container 2.

[0034] A ventilation pipe 5 for balancing the air pressures of each other is provided between the steam generator 1 and the water replenishing container 2. One end of the ventilation pipe 5 communicates with the inner cavity of the steam generator 1, and the other end of the ventilation pipe 5 communicates with the inner cavity of the water replenishing container 2.

[0035] The water level sensor 4 is provided with a movable detection end 6 having a first position state and a second position state according to the water level condition of the water replenishing container 2. The movable detection end 6 is movably arranged on the water level sensor 4;

[0036] The height position of the floating detection position of the water level sensor 4 on the water replenishing container 2 is lower than the ventilation position of the ventilation pipe 5.

[0037] When the movable detection end 6 is in the first position state, the cold water channels between the steam generator 1, the water replenishing container 2, and the water inlet device 3 are in a communicating state to open the water inlet waterways between the steam generator 1, the water replenishing container 2, and the water inlet device 3;

[0038] When the movable detection end 6 is in the second position state, the cold water channels between the steam generator 1, the water replenishing container 2, and the water inlet device 3 are in a closed state to cut off the water inlet waterways between the steam generator 1, the water replenishing container 2, and the water inlet device 3.

[0039] In this embodiment, the water level sensor 4 is a prior art, and other detailed structures will not be elaborated.

[0040] The water level sensor 4 is electrically connected to a control module 8 through a first wire 7. A switching valve 9 is provided on the cold water channels between the steam generator 1, the water replenishing container 2, and the water inlet device 3. The switching valve 9 is electrically connected to the control module 8 through a second wire 10; the water level sensor 4 detects the water level condition of the water replenishing container 2 and feeds it back to the control module 8. The control module 8 acts on the switching valve 9 through the detection signal of the water level sensor 4 to open and close the switching valve 9 and thus open and close the cold water channels between the steam generator 1, the water replenishing container 2, and the water inlet device 3.

[0041] In this embodiment, the switching valve 9 can be an electromagnetic valve.

[0042] A baffle plate 11 is provided in the inner cavity of the steam generator 1. The baffle plate 11 divides the inner cavity of the steam generator 1 into a steam generation chamber 12 and a cold water inlet chamber 13 that are connected and communicate with each other. One end of the cold water inlet chamber 13 is connected to the water replenishing container 2. A heating element 14 is provided on the outer side of the steam generation chamber 12. When the heating element 14 heats and acts on the steam generation chamber 12, steam is generated in the steam generation chamber 12, and the baffle plate 11 blocks the cold water in the cold water inlet chamber 13 from flowing into the steam generation chamber 12.

[0043] An inlet gap 15 is provided between one end of the baffle plate 11 and the inner cavity of the steam generator 1. The steam generation chamber 12 and the cold water inlet chamber 13 communicate with each other through the inlet gap 15.

[0044] A pressure gauge 16 for detecting the air pressure in its inner cavity is provided on the steam generator 1; a water-vapor separation device 34 is provided in the inner cavity of the steam generator 1. The water-vapor separation device 34 includes a cover body 35 provided in the inner cavity of the steam generator 1. The cover body 35 is provided with an air outlet communicating with the air outlet end of the steam generator 1, and the inner diameter of the inner cavity of the cover body 35 gradually decreases towards the air outlet end of the steam generator 1.

[0045] In this embodiment, the air outlet of the cover body 35 can be inserted into the air outlet end of the steam generator 1, and the cover body 35 can be fixed on the top of the inner cavity of the steam generator 1 by screws or buckles, etc.

[0046] The steam generator 1 includes an upper shell 18 provided with a steam output port 17 and a lower shell 19 provided with a heating element 14. A cold water inlet 20 is provided on the lower shell 19. A cold water outlet 21 is provided on the water replenishing container 2. An inlet pipe 22 is provided between the cold water outlet 21 and the cold water inlet 20. A water source inlet end 23 for connecting the water inlet device 3 is provided on the water replenishing container 2. The water source inlet end 23, the inlet pipe 22, the cold water outlet 21, and the cold water inlet 20 sequentially form a cold water channel among the steam generator 1, the water replenishing container 2, and the water inlet device 3.

[0047] The heating element 14 is arranged at the bottom of the lower shell 19. An electronic NTC temperature sensor 38 and a mechanical snap-action thermostat 39 are provided corresponding to the heating element 14 at the bottom of the lower shell 19;

[0048] The water source inlet end 23 is arranged on the side or bottom of the water replenishing container 2.

[0049] In this embodiment, the steam output port 17 of the steam generator 1 is connected to the steam input port of the soybean milk machine 29 through a steam pipe. The steam input port is arranged at the top, side, or a position near the bottom of the soybean milk machine 29.

[0050] In this embodiment, a filter net 30 and a check one-way valve 31 for preventing the liquid in the soybean milk machine 29 from flowing towards the steam generator 1 along the steam input port can be provided corresponding to the steam input port in the soybean milk machine 29.

[0051] In this embodiment, the upper shell 18 is provided with a first ventilation connection end for connecting the ventilation pipe 5, and the water replenishing container 2 is provided with a second ventilation connection end for connecting the ventilation pipe 5; one end of the ventilation pipe 5 is connected to the first ventilation connection end, and the other end of the ventilation pipe 5 is connected to the second ventilation connection end.

[0052] In this embodiment, a sealing ring for preventing steam leakage is provided between the upper shell 18 and the lower shell 19, and the upper shell 18 and the lower shell 19 are hermetically fitted through the sealing ring.

[0053] The connection flange 24 for fixing the water level sensor 4 is provided on the water replenishing container 2. A first fastener 25 is provided on the water level sensor 4, and a second fastener 26 sleeved on the water level sensor 4 is provided on the outer side of the connection flange 24. The first fastener 25 and the second fastener 26 fix the water level sensor 4 on the connection flange 24.

[0054] In this embodiment, both the first fastener 25 and the second fastener 26 are fastening nuts.

[0055] The water inlet device 3 includes a water pump 27 connected to the cold water channel and used for increasing the water inlet pressure, and a carrier 28 for storing the water source.

[0056] In this embodiment, the carrier 28 is a faucet or a water storage tank for storing cold water.

[0057] In this embodiment, the control module 8 includes a control circuit board and an MCU arranged on the control circuit board. The water pump 27 is electrically connected to the control module 8.

[0058] A sewage outlet 32 is provided on the lower shell 19.

[0059] In this embodiment, a safety exhaust valve 33 may be provided on the steam pipeline between the upper shell 18 and the soybean milk machine 29. The steam output port of the upper shell 18 is connected to the first end of a three-way valve, the steam pipeline of the soybean milk machine 29 is connected to the second end of the three-way valve, and the exhaust valve 33 is connected to the third end of the three-way valve.

[0060] The steam generator 1 is provided with a hot air delivery pipe 37 extending into the inner cavity of the soybean milk machine 29 from the side or bottom of the soybean milk machine 29. A silencer 36 is provided at the output end of the hot air delivery pipe 37. The output end of the hot air delivery pipe 37 is inserted into the silencer 36, and a plurality of hot air output holes arranged at intervals are provided on the silencer 36.

[0061] The above is the preferred solution of the present utility model, which shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, there will be various changes and improvements to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A steam heating assembly, comprising a steam generator (1), characterized in that: It further includes a water replenishing container (2) externally disposed outside the steam generator (1). One end of the water replenishing container (2) is connected to the steam generator (1), and the other end of the water replenishing container (2) is connected to the water inlet device (3). The steam generator (1), the water replenishing container (2), and the water inlet device (3) are connected in sequence and there is a cold water channel between them. A water level sensor (4) for cooperating to open and close the cold water channel is provided on the water replenishing container (2).

2. The steam heating assembly according to claim 1, wherein: A ventilation pipe (5) for balancing the air pressures of each other is provided between the steam generator (1) and the water replenishing container (2). One end of the ventilation pipe (5) communicates with the inner cavity of the steam generator (1), and the other end of the ventilation pipe (5) communicates with the inner cavity of the water replenishing container (2); The height position of the floating detection position of the water level sensor (4) on the water replenishing container (2) is lower than the ventilation position of the ventilation pipe (5).

3. The steam heating assembly according to claim 1, wherein: The water level sensor (4) is provided with a movable detection end (6) having a first position state and a second position state according to the water level condition of the water replenishing container (2). The movable detection end (6) is movably arranged on the water level sensor (4); When the movable detection end (6) is in the first position state, the cold water channels among the steam generator (1), the water replenishing container (2), and the water inlet device (3) are in a communicating state to open the water inlet waterways among the steam generator (1), the water replenishing container (2), and the water inlet device (3); When the movable detection end (6) is in the second position state, the cold water channels among the steam generator (1), the water replenishing container (2), and the water inlet device (3) are in a closed state to cut off the water inlet waterways among the steam generator (1), the water replenishing container (2), and the water inlet device (3).

4. The steam heating assembly according to claim 1, wherein: The water level sensor (4) is electrically connected to the control module (8) through a first wire (7). A switching valve (9) is provided on the cold water channel among the steam generator (1), the water replenishing container (2), and the water inlet device (3). The switching valve (9) is electrically connected to the control module (8) through a second wire (10); the water level sensor (4) detects the water level condition of the water replenishing container (2) and feeds it back to the control module (8). The control module (8) acts on the switching valve (9) through the detection signal of the water level sensor (4) to open and close the switching valve (9), thereby opening and closing the cold water channels among the steam generator (1), the water replenishing container (2), and the water inlet device (3).

5. The steam heating assembly according to claim 1, wherein: A partition plate (11) is provided on the inner cavity of the steam generator (1). The partition plate (11) divides the inner cavity of the steam generator (1) into a connected steam generation cavity (12) and a cold water inlet cavity (13). One end of the cold water inlet cavity (13) communicates with the water replenishing container (2). A heating element (14) is provided on the outside of the steam generation cavity (12). When the heating element (14) heats and acts on the steam generation cavity (12), steam is generated in the steam generation cavity (12), and the partition plate (11) blocks the cold water in the cold water inlet cavity (13) from flowing into the steam generation cavity (12).

6. The steam heating assembly according to claim 5, wherein: There is a water inlet gap (15) between one end of the partition plate (11) and the inner cavity of the steam generator (1), and the steam generation cavity (12) and the cold water inlet cavity (13) are connected through the water inlet gap (15).

7. The steam heating assembly according to claim 1, characterized in that: A pressure gauge (16) for detecting the air pressure in its inner cavity is provided on the steam generator (1); a water-gas separation device (34) is provided in the inner cavity of the steam generator (1). The water-gas separation device (34) includes a cover body (35) provided in the inner cavity of the steam generator (1). The cover body (35) is provided with an air outlet communicating with the air outlet end of the steam generator (1), and the inner diameter of the inner cavity of the cover body (35) gradually decreases towards the air outlet end of the steam generator (1).

8. The steam heating assembly according to claim 1, characterized in that: The steam generator (1) includes an upper shell (18) provided with a steam outlet (17) and a lower shell (19) provided with a heating element (14). A cold water inlet (20) is provided on the lower shell (19). A cold water outlet (21) is provided on the water replenishing container (2). An inlet pipe (22) is provided between the cold water outlet (21) and the cold water inlet (20). A water source inlet end (23) for connecting the water inlet device (3) is provided on the water replenishing container (2). The water source inlet end (23), the inlet pipe (22), the cold water outlet (21), and the cold water inlet (20) sequentially form a cold water channel among the steam generator (1), the water replenishing container (2), and the water inlet device (3); a sewage outlet (32) is provided on the lower shell (19); The heating element (14) is arranged at the bottom of the lower shell (19), and an electronic NTC temperature sensor (38) and a mechanical snap-action thermostat (39) are provided at the bottom of the lower shell (19) corresponding to the heating element (14). The water source inlet end (23) is arranged on the side or bottom of the water replenishing container (2).

9. The steam heating assembly according to claim 1, wherein: A connecting flange (24) for fixing the water level sensor (4) is provided on the water replenishing container (2). A first fastener (25) is provided on the water level sensor (4). A second fastener (26) sleeved on the water level sensor (4) is provided on the outer side of the connecting flange (24). The first fastener (25) and the second fastener (26) fix the water level sensor (4) on the connecting flange (24).

10. The steam heating assembly according to claim 1, characterized in that: The water inlet device (3) includes a water pump (27) connected to the cold water channel and used for increasing the water inlet pressure and a carrier (28) for storing the water source; A hot air delivery pipe (37) extending from the side or bottom of the soybean milk machine (29) into the inner cavity of the soybean milk machine (29) is provided on the steam generator (1). A silencer (36) is provided at the output end of the hot air delivery pipe (37). The output end of the hot air delivery pipe (37) is inserted into the silencer (36), and a plurality of hot air output holes arranged at intervals are provided on the silencer (36).

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