Steam car washing machine and steam boiler thereof

Abstract

The present invention provides a steam car washer and a steam boiler thereof. The steam boiler comprises a pot body, a vibrator and a first pipe assembly. A boiler cavity is formed in the pot body. A scale discharge port and a water inlet both connected to the boiler cavity are provided on the pot body. The vibrator is mounted on the pot body, and the vibrator is controlled to provide a vibration force that causes the pot body to reciprocate in at least one direction. The first pipe assembly is connected to the water inlet and is fluidly connected to the water inlet to form a cleaning channel for water to flow to the boiler cavity. The cleaning efficiency of the steam car washer and the steam boiler thereof provided by the present invention can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of car washing equipment, and in particular to a steam car washing machine and a steam boiler thereof. Background Art

[0002] With the continuous development of science and technology, the use of steam car washing machines is becoming more and more common. Steam car washing machines include steam boilers. Water is heated in the steam boiler to form steam, which is ejected from the steam boiler to wash the car.

[0003] When a steam boiler is used for a long time, scale will form inside the steam boiler. The scale is easily carried by the steam and sprayed out from the steam boiler, and then adheres to the car. Then, the car needs to be repeatedly washed to remove the scale. However, repeated washing will result in a lower cleaning efficiency of the steam car washing machine and its steam boiler. Summary of the invention

[0004] Based on this, it is necessary to provide a steam car washing machine and a steam boiler with improved cleaning efficiency to address the problem of low cleaning efficiency of traditional steam car washing machines and their steam boilers.

[0005] A steam boiler comprising:

[0006] A pot body, wherein a boiler cavity is formed; the pot body is provided with a scale discharge port and a water inlet both connected to the boiler cavity;

[0007] a vibrator mounted on the pot body, the vibrator being controlled to provide a vibration force causing the pot body to vibrate back and forth in at least one direction; and

[0008] The first pipe assembly is matched with the water inlet and is in fluid communication with the water inlet to form a cleaning channel for supplying water to flow to the inner cavity of the boiler.

[0009] In one embodiment, the first pipe assembly includes a water inlet pipe, a steam outlet pipe and a connecting pipe, and the boiler body is provided with a steam outlet connected to the inner cavity of the boiler;

[0010] The water inlet pipe is connected to the water inlet, the steam outlet pipe is connected to the steam outlet, and the connecting pipe fluid is connected between the water inlet pipe and the steam outlet pipe.

[0011] In one embodiment, the first pipeline assembly includes a water inlet valve, which is connected to the connecting pipe and is used to control the opening and closing of the cleaning channel.

[0012] In one embodiment, the first pipe assembly includes a steam outlet valve, which is connected to the steam outlet pipe and is located outside the water flow path of the cleaning channel, and is used to open and close the communication between the outside and the inner cavity of the boiler.

[0013] In one embodiment, the steam boiler has a descaling state and a cleaning state that lags behind the descaling state or is synchronized with the descaling state. When in the descaling state, the water inlet valve and the steam outlet valve are closed. When in the cleaning state, the water inlet valve is opened and the steam outlet valve is closed.

[0014] In one embodiment, it also includes a flow sensor and a controller, the controller is electrically connected to the flow sensor, the water inlet valve and the steam outlet valve, the flow sensor is used to detect the flow value at the water inlet, and the controller is used to control the steam boiler to switch to the descaling state and the cleaning state sequentially or synchronously when the flow value is greater than a preset value.

[0015] In one embodiment, a second pipe assembly is further included, wherein the second pipe assembly is connected to the scale discharge port and is fluidically connected to the scale discharge port to form a scale discharge channel for the scale after vibration to be discharged from the inner cavity of the boiler.

[0016] In one embodiment, the second pipe assembly includes a drain pipe and a scale discharge valve. The drain pipe is connected to the scale discharge port, and the scale discharge valve is used to control the opening and closing of the scale discharge channel.

[0017] In one embodiment, the boiler further comprises a driving member installed on the boiler body, wherein the driving member is in driving connection with the vibrator and is used to drive the vibrator to slide along the circumference of the boiler.

[0018] In one embodiment, the outer wall of the boiler is provided with an annular groove and an annular track extending along the circumference of the boiler body, the vibrator is at least partially accommodated in the annular groove, and the driving member can be operated to slide along the annular track to drive the vibrator to slide along the annular groove.

[0019] In one embodiment, a pressing plate is further included, and the pressing plate is installed on the edge of the groove of the annular groove, and the projections of the pressing plate and the vibrator on the bottom of the annular groove overlap.

[0020] A steam car washing machine comprises the steam boiler mentioned above.

[0021] In the above-mentioned steam car washing machine and steam boiler thereof, when the steam boiler needs to remove scale, the vibrator provides a vibration force so that the pot body vibrates back and forth in at least one direction, and the frequency of the pot body vibration is equal to the natural frequency of the scale. Therefore, the scale and the pot body resonate and can separate the scale from the pot body. Then, the separated scale is discharged from the scale discharge port. In addition, water can also be input into the boiler cavity from the cleaning channel to further clean the boiler cavity. Then, water and scale are discharged from the scale discharge port, which is convenient for reducing the residual scale. Therefore, after the steam boiler is vibrated and cleaned, the scale in the boiler cavity is greatly reduced, so the scale content carried in the steam can be greatly reduced, so that the steam car washing machine and its steam boiler do not need to repeatedly rinse the car when working, thereby facilitating improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of a steam boiler in one embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] See also Figure 1 The present invention provides a steam car washing machine (not shown). The steam car washing machine comprises a steam boiler 10 and a spray gun. The steam boiler 10 is provided with an exhaust port, and the spray gun is matched with and connected to the exhaust port. During use, the steam in the steam boiler 10 can flow out through the exhaust port and spray out from the spray gun to wash the car.

[0027] The steam boiler 10 includes a pot body 11, a combustion furnace 12, a vibrator 19, and a first pipe assembly 23. The pot body 11 is used to hold water to be heated, and the combustion furnace 12 is placed in the pot body 11 to heat the water in the pot body 11. The vibrator 19 and the first pipe assembly 23 are both connected to the pot body 11 to perform cleaning and descaling functions on the pot body 11. Specifically, the pot body 11 includes a bottom wall, a top wall opposite to the bottom wall, and a side wall connected between the bottom wall and the top wall. The bottom wall, the top wall and the side wall together define a boiler cavity 111 for holding water. Among them, when the pot body 11 is placed normally, the bottom wall is the side of the pot body 11 facing the support surface (for example, the ground, a table top, etc.).

[0028] The pot body 11 is provided with a descaling port 112 and a water inlet 113 which are connected to the boiler inner cavity 111. The discharge port is also provided on the pot body 11 and is connected to the boiler inner cavity 111. The water inlet 113 and the discharge port are provided on the bottom wall, and the descaling port 112 is provided on the side wall.

[0029] The combustion furnace 12 is accommodated and fixed in the boiler inner cavity 111, and is isolated from the boiler inner cavity 111 and independently arranged. The combustible material burns in the combustion furnace 12, and the water flowing through the combustion furnace 12 in the boiler inner cavity 111 can be heated. Specifically, the steam boiler 10 also includes a heating pipe 13, an oil inlet pipe 14, an ignition gun 15 and a chimney 16. The heating pipe 13 is accommodated in the boiler inner cavity 111 and is penetrated in the combustion furnace 12. The opposite ends of the heating pipe 13 are both connected to the boiler inner cavity 111. The oil inlet pipe 14, the ignition gun 15 and the chimney 16 are all arranged on the top wall of the pot body 11. The oil inlet pipe 14 partially extends into the combustion furnace 12 and is connected to the combustion furnace 12. The ignition part of the ignition gun 15 extends to the pipe mouth where the oil inlet pipe 14 is connected to the combustion furnace 12. The chimney 16 is connected to the combustion furnace 12 to discharge the smoke generated by the burning of oil.

[0030] The steam boiler 10 is in working state, and when the steam boiler 10 is in working state, water is inputted into the boiler inner cavity 111 from the water inlet 113. Since the heating tube 13 is connected with the boiler inner cavity 111, the heating tube 13 can be filled with water. Then, the oil inlet pipe 14 is fed with oil, and the ignition gun 15 is ignited to make the oil burn in the combustion furnace 12. Then, the temperature in the combustion furnace 12 rises, and the water in the heating tube 13 can be heated to form steam under the action of heat transfer, and overflow from the heating tube 13 into the boiler inner cavity 111. Then, the steam flows out from the discharge port for cleaning.

[0031] Furthermore, the steam boiler 10 further includes a shell 17. The shell 17 is coated on the surface of the boiler body 11 and is used to isolate the boiler body 11 from the outside, so as to protect the boiler body 11 and extend the service life of the boiler.

[0032] Furthermore, the steam boiler 10 further includes heat-insulating bricks 18. The heat-insulating bricks 18 are clamped between the bottom wall of the pot body 11 and the inner wall of the shell 17, so that the shell 17 and the pot body 11 are spaced apart to achieve heat insulation between the pot body 11 and the shell 17. When the oil in the combustion furnace 12 burns, the temperature of the pot body 11 will also rise due to heat transfer. Under the action of the heat-insulating bricks 18, the heat on the pot body 11 cannot be transferred to the shell 17, which can extend the service life of the shell 17 and prevent the shell 17 from rising in temperature and scalding the operator.

[0033] The vibrator 19 is mounted on the pot body 11, and the vibrator 19 is controlled to provide a vibration force that causes the pot body 11 to reciprocate in at least one direction. The vibration force drives the pot body 11 to vibrate, and makes the vibration frequency of the pot body 11 equal to the natural frequency of the scale. Therefore, resonance can be formed between the pot body 11 and the scale, so that the scale is separated from the pot body 11. It should be noted that the vibration of the vibrator 19 can be controlled by manpower or a controller. The scale separated from the pot body 11 is mixed with the water in the boiler cavity 111 and discharged from the scale discharge port 112. The first pipe assembly 23 is connected to the water inlet 113 and is fluidly connected to the water inlet 113 to form a cleaning channel for water to flow to the boiler cavity 111. Water is input into the boiler cavity 111 through the cleaning channel to further clean the boiler cavity 111 and prevent scale from remaining in the boiler cavity 111. Then, water and scale are discharged from the scale discharge port 112. The scale in the boiler cavity 111 is greatly reduced after vibration and cleaning, so the scale content carried in the steam can be greatly reduced, so that the steam car washing machine and its steam boiler 10 do not need to repeatedly rinse the car during operation, thereby facilitating improved cleaning efficiency.

[0034] Specifically, the steam boiler 10 has a descaling state and a cleaning state. The cleaning state and the descaling state can be performed simultaneously or lag behind the descaling state. In the descaling state, the vibration force provided by the vibrator 19 drives the pot body 11 to vibrate. In the cleaning state, water is input from the cleaning channel into the boiler cavity 111 to clean the boiler cavity 111.

[0035] If the cleaning state and the descaling state are performed simultaneously, the steam boiler 10 can remove the scale in time while descaling, so that the steam boiler 10 has a high descaling efficiency and cleaning effect. If the cleaning state lags behind the descaling state, after descaling, the cleaning water can further clean the inner wall of the pot body 11 to prevent scale from remaining in the boiler cavity 111.

[0036] Specifically, the vibrator 19 is installed on the side wall of the pot body 11 and is located in the shell 17. Therefore, on the one hand, the vibrator 19 can be prevented from malfunctioning due to long-term contact with steam, and on the other hand, the vibrator 19 is also protected by the shell 17 to extend the service life of the vibrator 19. It can be understood that in some other embodiments, the installation position of the vibrator 19 relative to the pot body 11 can be determined as needed, and it is only necessary to realize that the vibrator 19 provides vibration force to the pot body 11 to realize the descaling function, which is not limited here.

[0037] Specifically, if the vibrator 19 has a large energy when vibrating and can drive the entire pot body 11 to vibrate, the vibrator 19 can be directly fixed or detachably installed at a specific position on the side wall of the pot body 11. If the vibrator 19 has a small energy when vibrating and can only drive a local area of ​​the pot body 11 to vibrate, the position of the vibrator 19 needs to be changed to comprehensively clean the scale.

[0038] Generally, the energy of the vibrator 19 during vibration is closely related to its volume. The greater the energy, the larger the volume of the vibrator 19; the smaller the energy, the smaller the volume of the vibrator 19. In order to reduce the volume of the vibrator 19 and realize the miniaturization of the steam boiler 10, a vibrator 19 with smaller energy is generally provided, and the position of the vibrator 19 on the pot body 11 can be changed.

[0039] In this specific embodiment, the steam boiler 10 further includes a driving member 21. The driving member 21 is mounted on the pot body 11 and is in transmission connection with the vibrator 19. The driving member 21 is used to drive the vibrator 19 to slide along the circumference of the pot body 11.

[0040] The vibrator 19 slides and applies a vibration force to the pot body 11 along the circumference of the pot body 11 to remove scale from the circumference of the pot body 11, thereby reducing the residual scale on the inner wall of the pot body 11.

[0041] Furthermore, in this embodiment, the outer wall of the pot body 11 is provided with an annular groove 115 and an annular track 116 extending circumferentially along the pot body 11. The vibrator 19 is at least partially received in the annular groove 115, and the driving member 21 can be operatively slid along the annular track 116 to drive the vibrator 19 to slide along the annular groove 115.

[0042] It should be noted that the vibrator 19 is at least partially accommodated in the annular groove 115 . The vibrator 19 may be partially accommodated in the annular groove 115 , or the vibrator 19 may be completely accommodated in the annular groove 115 .

[0043] Specifically, the annular groove 115 is formed by a depression of the side wall of the pot body 11. The annular track 116 is arranged along the periphery of the top wall of the pot body 11. The vibrator 19 is connected to the driving member 21 through a rigid member such as a transmission rod and a transmission shaft. The driving member 21 can slide on the annular track 116 by human drive or controller drive to drive the vibrator 19 to slide along the extension direction of the annular groove 115.

[0044] The annular groove 115 guides and limits the sliding of the vibrator 19, and the annular track 116 guides and limits the sliding of the driver 21, which can ensure that the driver 21 and the vibrator 19 can move cyclically along the preset track, so that the sliding of the vibrator 19 and the driver 21 is more stable. In addition, the annular groove 115 also has a bearing effect on the vibrator 19. The annular groove 115 applies a bearing force to the vibrator 19, and the bearing force is offset by the gravity of the vibrator 19 to prevent the vibrator 19 from pulling the driver 21 under its own gravity, causing the resistance to the sliding of the driver 21 to be too large, resulting in the driver 21 falling from the top wall.

[0045] Furthermore, the steam boiler 10 further comprises a pressing plate 22. The pressing plate 22 is mounted on the edge of the notch of the annular groove 115, and the projections of the pressing plate 22 and the vibrator 19 on the bottom of the annular groove 115 overlap.

[0046] The vibrator 19 applies a vibration force to the pot body 11 by its own vibration. However, when the vibrator 19 vibrates itself, it is possible for the vibrator 19 to escape from the annular groove 115 and fall. The pressing plate 22 is installed at the notch of the annular groove 115, and the vibrator 19 can be accommodated in the annular groove 115. The vibrator 19 is always supported in the annular groove 115, so as to prevent the vibrator 19 from jumping and escaping from the annular groove 115.

[0047] Specifically, the pressing plate 22 can be disposed on one side edge of the notch of the annular groove 115 , or on two side edges opposite to the notch of the annular groove 115 .

[0048] The first pipe assembly 23 includes a water inlet pipe 231, a steam outlet pipe 233 and a connecting pipe 232. The boiler body 11 is provided with a steam outlet 114 connected to the boiler inner cavity 111. The water inlet pipe 231 is connected to the water inlet 113, the steam outlet pipe 233 is connected to the steam outlet 114, and the connecting pipe 232 is connected to the water inlet pipe 231 and the steam outlet pipe 233.

[0049] Specifically, one end of the water inlet pipe 231 is matched with the water inlet 113, and the other end extends out of the shell 17. The steam outlet pipe 233 is matched with the steam outlet 114, and part of it extends into the boiler cavity 111, and part of it is located outside the shell 17. The connecting pipe 232 is located outside the shell 17, and one end of the connecting pipe 232 is connected between the two ends of the water inlet pipe 231, and the other end is connected between the two ends of the steam outlet pipe 233.

[0050] Water can be input from the end of the water inlet pipe 231 away from the water inlet 113, and directly enter the boiler cavity 111 through the water inlet 113. In addition, at least part of the water can also flow through the water inlet pipe 231, the connecting pipe 232 and the steam outlet pipe 233 into the boiler cavity 111, and clean the boiler cavity 111.

[0051] Specifically, the steam outlet 114 can be arranged at one end of the top wall and the side wall close to the top wall, and the end of the steam outlet pipe 233 away from the connecting pipe 232 is matched with the steam outlet 114, or the steam outlet 114 can be arranged on the bottom wall, and the steam outlet pipe 233 is matched with the steam outlet 114, partially extending into the boiler cavity 111, and extending to the top wall of the pot body 11, so that the water sprayed from the steam outlet pipe 233 can clean the inner wall of the pot body 11 along the direction from the top wall to the bottom wall of the pot body 11 to remove the scale. By setting the water inlet pipe 231, the connecting pipe 232 and the steam outlet pipe 233, the cleaning channel can be adjusted according to the cleaning effect required by the steam boiler 10, so as to facilitate the improvement of the flexibility of the cleaning channel setting.

[0052] The steam boiler 10 further includes a water delivery valve 24. The water delivery valve 24 is connected to the water inlet pipe 231 and is located between the connection point between the water inlet pipe 231 and the connecting pipe 232 and the water inlet 113. The water delivery valve 24 is used to open and close the connection between the water inlet pipe 231 and the water inlet 113. Specifically, when water is input from the end of the water inlet pipe 231 away from the water inlet 113, if the water delivery valve 24 is opened, part of the water can flow through the water inlet pipe 231 and the water inlet 113 and enter the boiler cavity 111, and the remaining part of the water can be diverted in the process of flowing through the water inlet pipe 231 and enter the connecting pipe 232. If the water delivery valve 24 is closed, the water input from the end of the water inlet pipe 231 away from the water inlet 113 does not pass through the water inlet 113, and only flows directly from the water inlet pipe 231 to the connecting pipe 232. Therefore, by providing the water delivery valve 24 , the flow direction of water can be controlled to meet the working requirements of the steam boiler 10 in different states.

[0053] The first pipeline assembly 23 includes a water inlet valve 234 , which is connected to the connecting pipe 232 and is used to control the opening and closing of the cleaning channel.

[0054] Specifically, the water inlet valve 234 is opened, and the water input from the end of the water inlet pipe 231 away from the water inlet 113 can flow through the cleaning channel and enter the boiler cavity 111 to clean the boiler cavity 111, and the steam boiler 10 is switched to the cleaning state. The water inlet valve 234 is closed, and the cleaning channel is also closed, the cleaning state ends, and the steam boiler 10 can be switched to the working state or the descaling state. By setting the water inlet valve 234, the water inlet valve 234 controls the opening and closing of the cleaning channel, so that the steam boiler 10 can be switched between the cleaning state and other states.

[0055] There are multiple steam outlet pipes 233, and the multiple steam outlet pipes 233 are arranged along the circumference of the boiler body 11. Each steam outlet pipe 233 is connected to the connecting pipe 232. The cleaning water flowing through the connecting pipe 232 can flow out from the multiple steam outlet pipes 233 and fully clean the boiler body 11 along the circumference of the boiler body 11, so as to further reduce the residual scale in the boiler cavity 111.

[0056] The first pipe assembly 23 further includes a steam outlet valve 235 , which is connected to the steam outlet pipe 233 and is located outside the water flow path of the cleaning channel and is used to open and close the communication between the outside and the boiler inner cavity 111 .

[0057] In this specific embodiment, the steam outlet 114 is the exhaust port. The steam outlet valve 235 is arranged at one end of the steam outlet pipe 233 away from the top wall. When the steam boiler 10 is in the working state, the steam outlet valve 235 is opened, and the steam in the boiler cavity 111 can be discharged from the steam outlet pipe 233 to the outside for cleaning. When the steam boiler 10 is in the cleaning state, the steam outlet valve 235 is closed, and water flows into the boiler cavity 111 through the water inlet pipe 231, the connecting pipe 232 and the steam outlet pipe 233 and is used for cleaning. By setting the steam outlet valve 235, the steam outlet pipe 233 has the functions of cleaning and steam outlet to meet the needs of different working states of the steam boiler 10. Moreover, only by setting the steam outlet valve 235, the steam outlet pipe 233 can integrate multiple functions, so as to reduce the setting of the pipeline in the steam boiler 10 and reduce the cost.

[0058] The following describes in detail the opening and closing conditions of the water delivery valve 24, the water inlet valve 234 and the steam outlet valve 235 when the steam boiler 10 is in the working state, the descaling state and the cleaning state respectively.

[0059] When in working state, the water delivery valve 24 and the steam outlet valve 235 are both opened, and water flows into the boiler cavity 111 through the water inlet pipe 231 and the water inlet 113, and is heated in the boiler cavity 111 to form steam. Then, the steam is discharged from the steam outlet pipe 233. The water inlet valve 234 is closed, and the cleaning channel can be closed to prevent water from flowing into the steam outlet pipe 233 and hindering the discharge of steam.

[0060] When in the descaling state, the water inlet valve 234 is closed, so that the cleaning channel is closed. The scale after vibration can be discharged from the scale discharge port 112. At this time, the water delivery valve 24 can be opened or closed. If the water delivery valve 24 is opened, water can be input into the boiler cavity 111 from the water inlet 113 to ensure that there is enough water in the boiler cavity 111 to bring the scale out from the scale discharge port 112. If the water delivery valve 24 is closed, the scale can also be discharged smoothly due to the water stored in the boiler cavity 111. The steam outlet valve 235 is closed to prevent water from flowing out from the end of the steam outlet pipe 233 away from the top wall and causing waste.

[0061] When in the cleaning state, the water inlet valve 234 is opened. Water can be input into the boiler cavity 111 from the cleaning channel to clean the boiler cavity 111 to prevent scale from remaining on the inner wall of the pot body 11. Furthermore, the scale can be discharged from the scale discharge port 112 to improve the cleanliness of the boiler cavity 111. The steam outlet valve 235 is closed to prevent water from flowing out from the end of the steam outlet pipe 233 away from the top wall and causing waste. At the same time, the water delivery valve 24 can be opened or closed, and it is preferred that the water delivery valve 24 is closed. Therefore, water does not need to be diverted through the water inlet 113, and can be directly sprayed out from the steam outlet pipe 233. The concentrated sprayed water has a greater impact force, which can have a better flushing effect on the inner wall of the pot body 11 to reduce the residual scale on the inner wall of the pot body 11.

[0062] In this specific embodiment, the descaling state and the cleaning state are performed synchronously. At this time, the water delivery valve 24 and the steam outlet valve 235 are closed, and the water inlet valve 234 is opened. The descaling and cleaning functions of the steam boiler 10 can be performed simultaneously, which is convenient for improving the cleaning and descaling efficiency of the steam boiler 10.

[0063] The steam boiler 10 also includes a flow sensor (not shown) and a controller. The controller is electrically connected to the flow sensor, the water inlet valve 234 and the steam outlet valve 235. The flow sensor is used to detect the flow value at the water inlet 113, and the controller is used to control the steam boiler 10 to switch to the descaling state and the cleaning state in sequence or synchronously when the flow value is greater than a preset value.

[0064] Specifically, the controller is also electrically connected to the water delivery valve 24. The flow sensor can detect the flow value at the water inlet 113 and send a signal to the controller. The controller receives the signal received by the flow sensor and compares the flow value. Specifically, the preset value can be 1T, 2T, etc. When the flow value is less than or equal to the preset value, the controller controls the water delivery valve 24 and the steam outlet valve 235 to open, the water inlet valve 234 to close, and the steam boiler 10 is in a working state. When the flow value is greater than the preset value, the controller controls the steam outlet valve 235 to close, and the steam boiler 10 switches from the working state to the descaling state. Then, the water inlet valve 234 is controlled to open, and the steam boiler 10 switches from the descaling state to the cleaning state. If the descaling state and the cleaning state are performed simultaneously, when the flow value is greater than the preset value, the controller can control the water delivery valve 24 and the steam outlet valve 235 to close, and the water inlet valve 234 to open, so that the steam boiler 10 can be synchronously switched from the working state to the descaling state and the cleaning state.

[0065] When the steam outlet valve 235 is closed for more than a preset period of time, the controller controls the flow sensor to return to zero and controls the water inlet valve 234 to close, and the steam boiler 10 switches from the cleaning state to the working state. The steam boiler 10 restarts the state cycle.

[0066] By providing a flow sensor and a controller, the steam boiler 10 can be automatically switched between a working state, a cleaning state and a descaling state, so as to realize the automation of the steam boiler 10 .

[0067] The steam boiler 10 further includes a second pipe assembly 25. The second pipe assembly 25 is coupled to the scale discharge port 112 and is in fluid communication with the scale discharge port 112 to form a scale discharge passage for the scale discharged from the boiler inner cavity 111 after vibration.

[0068] Therefore, the scale in the boiler inner cavity 111 can be discharged outward through the scale discharge port 112 and the scale discharge channel, and discharged to a designated location under the guidance of the scale discharge channel for easy collection.

[0069] Specifically, the second pipe assembly 25 includes a drain pipe 251 and a scale discharge valve 252. The drain pipe 251 is connected to the scale discharge port 112, and the scale discharge valve 252 is used to control the opening and closing of the scale discharge channel.

[0070] The descaling valve 252 is arranged in the drain pipe 251. When the descaling valve 252 is opened, the descaling channel is opened, and the scale is mixed with the water in the boiler cavity 111 and discharged from the descaling channel. When the descaling valve 252 is closed, the descaling channel is closed to prevent the water in the boiler cavity 111 from overflowing from the descaling channel. Specifically, the opening or closing of the descaling valve 252 can be set according to the different states of the steam boiler 10. When the steam boiler 10 is in the working state, the descaling valve 252 is closed to prevent the water in the boiler cavity 111 from overflowing from the descaling port 112 and the descaling channel, so that there is sufficient water in the boiler cavity 111 for heating and evaporation. In the descaling state and the cleaning state, the descaling valve 252 is opened so that the scale can be discharged from the descaling channel in time. Therefore, by setting the descaling valve 252 and the drain pipe 251, the descaling channel can be opened and closed in different states of the steam boiler 10 to meet the needs of different states of the steam boiler 10.

[0071] Specifically, the descaling valve 252 is also electrically connected to the controller. When the flow value is greater than the preset value, the controller controls the descaling valve 252 to open. When the flow value is less than or equal to the preset value, the controller controls the descaling valve to close, so as to realize the automatic opening and closing of the descaling valve 252.

[0072] In addition, it should be noted that in some other embodiments, when the steam boiler 10 does not have a drain pipe 251 and a drain valve 252, in order to prevent water from overflowing from the boiler cavity 111 when the steam boiler 10 is in operation, the drain port 112 may be blocked by an end cover, a sealing material, etc., or the drain port 112 may be disposed at a position of the side wall farther from the bottom wall to ensure that there is sufficient water in the boiler cavity 111 for heating and evaporation.

[0073] In the above-mentioned steam car washing machine and its steam boiler 10, when the steam boiler 10 needs to remove scale, the vibrator 19 provides a vibration force, so that the pot body 11 reciprocates in at least one direction, and the frequency of the vibration of the pot body 11 is equal to the natural frequency of the scale. Therefore, the scale and the pot body 11 form a resonance, and the scale and the pot body 11 can be separated. Then, the separated scale is discharged from the scale discharge port 112. In addition, water can also be input into the boiler cavity 111 from the cleaning channel to further clean the boiler cavity 111. Then, water and scale are discharged from the scale discharge port 112, which is convenient for reducing the residual scale. Therefore, after the steam boiler 10 is vibrated and cleaned, the scale in the boiler cavity 111 is greatly reduced, so the scale content carried in the steam can be greatly reduced, so that the steam car washing machine and its steam boiler 10 do not need to repeatedly rinse the car when working, thereby facilitating improving the cleaning efficiency.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A steam boiler, characterized in that: include: A pot body, in which a boiler cavity is formed; the pot body is provided with a scale discharge port and a water inlet both connected to the boiler cavity; a vibrator mounted on the pot body, the vibrator being controlled to provide a vibration force causing the pot body to vibrate back and forth in at least one direction; and a first pipe assembly, connected to the water inlet and in fluid communication with the water inlet to form a cleaning passage for supplying water to flow to the inner cavity of the boiler; The first pipeline assembly includes a water inlet pipe, a steam outlet pipe, a connecting pipe and a water inlet valve, and the boiler body is provided with a steam outlet connected to the inner cavity of the boiler; Among them, the water inlet pipe is connected to the water inlet, the steam outlet pipe is connected to the steam outlet, the connecting pipe fluid is connected between the water inlet pipe and the steam outlet pipe, and the water inlet valve is connected to the connecting pipe to control the opening and closing of the cleaning channel.

2. The steam boiler according to claim 1, characterized in that: The first pipeline assembly includes a steam outlet valve, which is connected to the steam outlet pipe and is located outside the water flow path of the cleaning channel, and is used to open and close the communication between the outside and the inner cavity of the boiler.

3. The steam boiler according to claim 2, characterized in that: The steam boiler has a descaling state and a cleaning state which lags behind the descaling state or is synchronized with the descaling state. When in the descaling state, the water inlet valve and the steam outlet valve are closed. When in the cleaning state, the water inlet valve is opened and the steam outlet valve is closed.

4. The steam boiler according to claim 3, characterized in that: It also includes a flow sensor and a controller, wherein the controller is electrically connected to the flow sensor, the water inlet valve and the steam outlet valve, the flow sensor is used to detect the flow value at the water inlet, and the controller is used to control the steam boiler to switch to the descaling state and the cleaning state sequentially or synchronously when the flow value is greater than a preset value.

5. The steam boiler according to claim 1, characterized in that: It also includes a second pipe component, which is connected to the scale discharge port and is fluidly connected to the scale discharge port to form a scale discharge channel for the scale after vibration to be discharged from the inner cavity of the boiler.

6. The steam boiler according to claim 5, characterized in that: The second pipeline component includes a drain pipe and a scale discharge valve. The drain pipe is connected to the scale discharge port, and the scale discharge valve is used to control the opening and closing of the scale discharge channel.

7. The steam boiler according to claim 1, characterized in that: It also includes a driving member installed on the pot body, the driving member is drivingly connected to the vibrator and is used to drive the vibrator to slide along the circumference of the boiler.

8. The steam boiler according to claim 7, characterized in that: The outer wall of the boiler is provided with an annular groove and an annular track extending along the circumference of the boiler body, the vibrator is at least partially accommodated in the annular groove, and the driving member can be operated to slide along the annular track to drive the vibrator to slide along the annular groove.

9. The steam boiler according to claim 8, characterized in that: It also includes a pressing plate, which is installed on the edge of the groove of the annular groove, and the projections of the pressing plate and the vibrator on the bottom of the annular groove overlap.

10. A steam car washing machine, characterized in that: It comprises a steam boiler as described in any one of claims 1 to 9 above.

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