Self-heating steam generating device

Abstract

The application discloses a self-heating steam generating device, which is characterized by comprising a self-heating container and a steam pipeline, wherein the self-heating container is provided with a fluid injection port and a closable heating bag injection port for injecting a heating bag; one end of the steam pipeline is connected with a steam area at the upper portion of the self-heating container; and the other end of the steam pipeline is provided with a steam regulating device for spraying regulated steam to a cleaning part and / or a cleaned surface. The self-heating steam generating device can not continuously wet the cleaning part and / or the cleaned surface, and the output of the steam can be controlled.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and specifically to a self-heating steam generating device. Background Technology

[0002] Room temperature cleaning fluids do not provide optimal cleaning results, therefore cleaning devices that use hot water and / or steam as cleaning fluids have emerged. Self-heating methods that generate hot water and / or steam through chemical reactions offer greater convenience and flexibility because they require no electricity and thus no external power source.

[0003] For example, Chinese invention patent application CN103327871A discloses a self-heating steam generating device, which includes a heating unit 1A, an outer casing 2A, and an adsorption layer 3A. The heating unit 1A and the adsorption layer 3A are located within a cavity formed by the outer casing 2A. The adsorption layer 3A is located outside the heating unit 1A and in contact with it. The heating unit 1A has a fluid-permeable wall 4A serving as the internal space of the heating unit 1A and a fluid-active material 5A located within the internal space of the heating unit 1A. When fluid is captured, the fluid enters the cavity formed by the outer casing 2A and further passes through the fluid-permeable wall 4A of the heating unit 1A, contacting the fluid-active material 5A located within the internal space of the heating unit 1A. When the fluid-active material 5A contacts the fluid, an exothermic reaction occurs, thereby generating steam. The generated steam passes through the fluid-permeable wall 4A of the heating unit 1A and the fluid-permeable wall 4A of the outer casing 2A and is then used for surface cleaning. Furthermore, in surface cleaning applications, the heating unit 1A, outer cover 2A, and adsorption layer 3A are typically prepared in the form of a pad. This pad is actually used directly as a cleaning cloth and is attached to the end of the handle. The fluid from the fluid source is moved to the pad using a fluid delivery system provided inside the handle, or the pad is directly wetted with water. Then, the fluid enters the interior of the heating unit 1A and reacts exothermically with the fluid active material 5A, thereby generating steam on the pad. The wetted pad with hot steam is then used to clean the surface to be cleaned.

[0004] However, existing self-heating steam generating devices still have the following technical problems: the self-heating pad made of heating unit 1A, outer cover 2A and adsorption layer 3A is directly used as the cleaning part. The reaction fluid is also transported to the pad through the internal fluid delivery system or the pad is wetted by direct wetting. That is, the reaction fluid active material 5A and the fluid react on the pad. The pad as a whole does not have an isolated chamber. After the fluid wets the pad, the steam generated by the exothermic reaction between the fluid and the fluid active material 5A is directly used for cleaning. The output of steam is uncontrollable. In addition, the pad must be wetted to generate steam. In some cases where steam is used as a cleaning method, it is beneficial to wet the cleaning part and / or the surface to be cleaned in the initial stage. However, in the subsequent stage, it is not actually desirable to wet the cleaning part and / or the surface to be cleaned. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a self-heating steam generating device that does not continuously wet the cleaning part and / or the surface being cleaned, and whose steam output is controllable.

[0006] The technical solution of the present invention is: a self-heating steam generating device, characterized in that: it includes a self-heating container and a steam pipe, the self-heating container is provided with a fluid injection port and an openable heating pack injection port for injecting heating packs, one end of the steam pipe is connected to the steam zone at the top of the self-heating container, and the other end is provided with a steam regulating device for spraying regulated steam onto the cleaning section and / or the surface being cleaned.

[0007] With the above structure, the present invention has the following advantages:

[0008] In this invention, the fluid active material and fluid of the self-heating steam generating device are not directly delivered to the cleaning section, but rather undergo an exothermic reaction within the self-heating container. The hot water generated by the exothermic reaction remains within the self-heating container, and only the hot steam is drawn out through the steam pipe as the cleaning fluid. Therefore, the cleaning section and / or the surface being cleaned will not be continuously wetted. Furthermore, the self-heating container is an isolated chamber, and a steam pipe connected to the self-heating container is provided, with a steam control device installed on the steam pipe, so that the steam output from the self-heating container can be controlled.

[0009] Preferably, the steam control device includes a one-way control spray switch. This steam control device is simple and reliable, and prevents the output hot steam from flowing back.

[0010] Preferably, the self-heating container is a sealed chamber, and an overpressure protection device is provided on the self-heating container or steam pipeline. The sealed chamber design allows for higher steam heat utilization, while the overpressure protection device balances both heat utilization and operational safety.

[0011] Preferably, a fluid container is also included, the fluid outlet of which is connected to the fluid inlet of the self-heating container. This arrangement facilitates the supply of fluid to the self-heating container.

[0012] Preferably, one end of the steam pipe equipped with a steam control device passes through a fluid container before being used to spray steam onto the cleaning section and / or the surface to be cleaned. This arrangement allows for initial condensation of some of the steam in the steam pipe due to the lower temperature of the fluid in the container, resulting in abundant condensate that quickly wets the cleaning section and / or the surface to be cleaned – a beneficial initial step. In subsequent stages, as heat is continuously transferred from the steam pipe to the fluid container, the temperature of the container rises, and the steam in the steam pipe no longer condenses, thus only steam is output.

[0013] Preferably, the self-heating container is a sealed chamber, and the steam control device includes a three-way valve and a vent pipe. The inlet of the three-way valve is connected to the end of the steam pipe furthest from the self-heating container, one outlet is connected to one end of the vent pipe, and the other outlet is used to spray controlled steam onto the cleaning section and / or the surface being cleaned. The other end of the vent pipe is connected to the atmosphere. This steam control device can control whether steam is output to the cleaning section and / or the surface being cleaned, or whether overpressure steam is released through the vent pipe, depending on the steam pressure. It is essentially equivalent to installing an overpressure protection device on the steam pipeline.

[0014] Preferably, an inlet pump is provided between the fluid output of the fluid container and the fluid inlet on the self-heating container. The inlet pump allows for precise control of the fluid input to the self-heating container, thereby enabling better control of the reaction rate and reaction time of the heating pack, thus achieving controllability of the exothermic reaction.

[0015] Preferably, the inlet pump is a variable displacement pump. This configuration allows for adjustment of the inlet pump's flow rate, which in turn facilitates control of the steam output.

[0016] Preferably, a one-way valve is provided between the fluid output of the fluid container and the input of the inlet pump, or between the output of the inlet pump and the fluid inlet of the self-heating container. This arrangement prevents the fluid flowing into the self-heating container from flowing back.

[0017] Preferably, the fluid container has a filling port at the top. This arrangement facilitates the replenishment of liquid in the fluid container. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an existing self-heating steam generator.

[0019] Figure 2This is a schematic diagram of the structure of the self-heating steam generator installed in the rotary floor scrubber of the steam cleaning method in Example 1;

[0020] Figure 3 This is a front view of the self-heating steam generating device in Example 1;

[0021] Figure 4 This is a bottom schematic diagram of the self-heating steam generating device in Example 1;

[0022] Figure 5 This is an explosion diagram of the self-heating steam generating device in Example 1;

[0023] Figure 6 This is a schematic diagram of the structure of the self-heating steam generator installed in the steam cleaning robot in Example 2;

[0024] Figure 7 This is a schematic diagram of the self-heating steam generating device in Example 2;

[0025] Figure 8 This is an explosion diagram of the self-heating steam generating device in Example 2;

[0026] Figure 9 This is another exploded schematic diagram of the self-heating steam generating device in Example 2;

[0027] In the prior art diagram: 1A - heating unit, 2A - outer cover, 3A - adsorption layer, 4A - fluid permeation wall, 5A - fluid active material;

[0028] In the figures of this invention: 1-cleaning section, 2-steam control device, 3-self-heating container, 4-fluid inlet, 5-heating pack outlet, 6-fluid container, 7-fluid output, 8-start button, 9-steam pipe, 10-overpressure protection device, 11-one-way control spray switch, 12-three-way valve, 13-vent pipe, 14-liquid inlet, 15-heating pack, 16-liquid inlet pump, 17-air jet nozzle, 18-liquid inlet one-way valve. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Example 1:

[0031] A self-heating steam generating device is provided, which is applied to a rotary floor scrubber using steam cleaning in this embodiment. The self-heating steam generating device includes a self-heating container 3 and a steam pipe 9. The self-heating container 3 is provided with a fluid inlet 4 and an openable heating pack inlet 5 for dispensing heating packs 15. One end of the steam pipe 9 is connected to the steam zone above the self-heating container 3, and the other end is provided with a steam regulating device 2 for spraying regulated steam onto the cleaning section 1 and / or the surface being cleaned. The jet nozzle 17 is located at the center of the two rotary discs.

[0032] It also includes a fluid container 6, the fluid output 7 of which is connected to the fluid inlet 4 of the self-heating container 3; an inlet pump 16 is provided between the fluid output 7 of the fluid container 6 and the fluid inlet 4 of the self-heating container 3; the inlet pump 16 is a variable pump; an inlet check valve 18 is also provided between the fluid output 7 of the fluid container 6 and the input of the inlet pump 16 or between the output of the inlet pump 16 and the fluid inlet 4 of the self-heating container 3. The inlet check valve 18 can be set using existing technology, and is not shown in the figure of this embodiment.

[0033] The steam control device 2 includes a one-way control spray switch 11; the self-heating container 3 is a sealed chamber, and the self-heating container 3 or the steam pipeline is provided with an overpressure protection device 10, such as a pressure safety valve. In this embodiment, a pressure safety valve is installed inside the self-heating container 3.

[0034] The working principle of the self-heating steam generator in this embodiment is as follows: The inlet pump 16 is started to draw a certain amount of fluid from the fluid container 6 into the self-heating container 3. The fluid covers the heating pack 15, and then the inlet pump 16 stops working. The heating pack 15 reacts with the fluid to produce heat, and the fluid in the self-heating container 3 boils to produce hot water and steam. The steam in the self-heating container 3 is output through the steam pipe 9 and sprayed into the cleaning section 1 and / or the surface being cleaned through the one-way control spray switch 11 on the steam pipe 9. In addition, the pressure safety valve on the self-heating container 3 can release the pressure in the self-heating container 3 when the air pressure is too high.

[0035] Example 2:

[0036] A self-heating steam generating device is provided, which is applied to a vacuum cleaner using a steam cleaning method in this embodiment. The self-heating steam generating device includes a self-heating container 3 and a steam pipe 9. The self-heating container 3 is provided with a fluid inlet 4 and an openable heating pack inlet 5 for dispensing a heating pack 15. One end of the steam pipe 9 is connected to the steam zone at the top of the self-heating container 3, and the other end is provided with a steam regulating device 2 for spraying regulated steam onto the cleaning section 1 and / or the surface being cleaned.

[0037] It also includes a fluid container 6, the fluid output 7 of which is connected to the fluid inlet 4 of the self-heating container 3; an inlet pump 16 is provided between the fluid output 7 of the fluid container 6 and the fluid inlet 4 of the self-heating container 3; the inlet pump 16 is a variable pump; and an inlet check valve 18 is also provided between the fluid output 7 of the fluid container 6 and the input of the inlet pump 16 or between the output of the inlet pump 16 and the fluid inlet 4 of the self-heating container 3.

[0038] The self-heating container 3 is a sealed chamber. The steam control device 2 includes a three-way valve 12 and a vent pipe 13. The inlet of the three-way valve 12 is connected to the end of the steam pipe 9 away from the self-heating container 3. One outlet is connected to one end of the vent pipe 13, and the other outlet is used to spray controlled steam onto the cleaning section 1 and / or the surface being cleaned. The other end of the vent pipe 13 is connected to the atmosphere. This steam control device 2 can control whether the steam is output to the cleaning section 1 and / or the surface being cleaned, or whether overpressure steam is released through the vent pipe 13, depending on the steam pressure. It is essentially equivalent to installing an overpressure protection device 10 on the steam pipeline.

[0039] The steam pipe 9, equipped with a steam control device 2, passes through the fluid container 6 at one end before being used to spray steam onto the cleaning section 1 and / or the surface being cleaned. In this embodiment, the steam pipe 9 passes through the fluid container 6 first and then connects to the three-way valve 12. Alternatively, it can connect to the three-way valve 12 first and then pass through the fluid container 6.

[0040] In this embodiment, the fluid container 6 is disposed on top of the self-heating container 3, the heating pack dispensing port 5 is disposed on the top of the self-heating container 3, one side of the fluid container 6 is hinged to the self-heating container 3, which is used to expose the heating pack dispensing port 5 when flipped upward and close the heating pack dispensing port 5 when flipped downward; the other side of the fluid container 6 is connected to or separated from the self-heating container 3 through an opening button 8.

[0041] The working principle of the self-heating steam generator in this embodiment is as follows: Flip the fluid container 6 upwards, open the heating pack inlet 5 of the self-heating container 3, and place the heating pack 15 into the heating pack inlet 5. Then flip the fluid container 6 downwards and close the heating pack inlet 5. A certain amount of fluid is drawn from the fluid container 6 into the self-heating container 3 by the liquid pump 16, and the fluid covers the heating pack 15. The heating pack 15 reacts with the fluid and generates hot water and steam. The generated steam is output through the steam pipe 9, first passing through the fluid container 6 and then through the three-way valve 12. Under normal circumstances, the three-way valve 12 is connected to the pipe spraying towards the cleaning part 1 and / or the surface being cleaned, for spraying the regulated steam. Under abnormal circumstances, the vent pipe 13 is connected to release the steam pressure. Abnormal circumstances include the robot vacuum cleaner getting its wheels stuck or getting stuck in a certain position.

Claims

1. A self-heating steam generating device, characterized in that: The device includes a self-heating container (3) and a steam pipe (9). The self-heating container (3) is provided with a fluid inlet (4) and an openable heating pack outlet (5) for dispensing a heating pack (15). One end of the steam pipe (9) is connected to the steam zone at the top of the self-heating container (3), and the other end is provided with a steam control device (2) for spraying controlled steam onto the cleaning section (1) and / or the surface being cleaned. The device also includes a fluid container (6), the fluid outlet (7) of which is connected to the fluid inlet (4) of the self-heating container (3). One end of the steam pipe (9) provided with the steam control device (2) passes through the fluid container (6) before being used to spray steam onto the cleaning section (1) and / or the surface being cleaned.

2. The self-heating steam generating device according to claim 1, characterized in that: The steam control device (2) includes a one-way control spray switch (11).

3. The self-heating steam generating device according to claim 1, characterized in that: The self-heating container (3) is a sealed chamber, and an overpressure protection device (10) is provided on the self-heating container (3) or the steam pipeline.

4. The self-heating steam generating device according to claim 1, characterized in that: The self-heating container (3) is a sealed chamber. The steam control device (2) includes a three-way valve (12) and a vent pipe (13). The air inlet of the three-way valve (12) is connected to the end of the steam pipe (9) away from the self-heating container (3). One air outlet is connected to one end of the vent pipe (13). The other air outlet is used to spray the controlled steam to the cleaning part (1) and / or the surface being cleaned. The other end of the vent pipe (13) is connected to the atmosphere.

5. The self-heating steam generating device according to claim 1, characterized in that: A liquid inlet pump (16) is provided between the fluid output (7) of the fluid container (6) and the fluid inlet (4) on the self-heating container (3).

6. The self-heating steam generating device according to claim 5, characterized in that: The inlet pump (16) is a variable pump.

7. The self-heating steam generating device according to claim 5, characterized in that: A one-way valve (18) is provided between the fluid output (7) of the fluid container (6) and the input of the inlet pump (16) or between the output of the inlet pump (16) and the fluid inlet (4) of the self-heating container (3).

8. The self-heating steam generating device according to claim 1, characterized in that: The fluid container (6) is provided with a liquid inlet (14) at the top.

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