CN110631000A

CN110631000A - Steam car washer and steam boiler thereof

Info

Publication number: CN110631000A
Application number: CN201910993587.3A
Authority: CN
Inventors: 周永志; 张博; 杨建新; 刘星
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2019-12-31

Abstract

The invention provides a steam car washer and a steam boiler thereof. The steam boiler comprises a boiler body, a vibrator and a first pipeline assembly. The boiler body is internally provided with a boiler inner cavity. The pot body is provided with a dirt discharge port and a water inlet which are communicated with the inner cavity of the boiler. The vibrator is arranged on the pan body and is controlled to provide a vibration force which can promote the pan body to vibrate in at least one direction. The first pipe assembly is connected to the water inlet in a matching mode and is communicated with the water inlet in a fluid mode to form a cleaning channel for supplying water to the inner cavity of the boiler. The steam car washer and the steam boiler thereof provided by the invention have the advantage that the cleaning efficiency can be improved.

Description

Steam car washer and steam boiler thereof

Technical Field

The invention relates to the technical field of car washing equipment, in particular to a steam car washer and a steam boiler thereof.

Background

With the continuous development of science and technology, the use of steam car washing machine is more and more common. The steam car washer comprises a steam boiler. The water is heated in the steam boiler to form steam, and the steam is sprayed out of the steam boiler to clean the automobile.

When the steam boiler is used for a long time, scale is formed in the steam boiler. The scale is easily carried by the steam and ejected from the steam boiler and then adheres to the car. Furthermore, the scale can be removed by repeatedly washing the automobile. However, repeated flushes will result in a lower cleaning efficiency of the steam car washer and its steam boiler.

Disclosure of Invention

Accordingly, it is necessary to provide a steam car washer and a steam boiler thereof, which can improve the washing efficiency, in order to solve the problem of low washing efficiency of the conventional steam car washer and steam boiler thereof.

A steam boiler, comprising:

a pot body, in which a boiler inner cavity is formed; the boiler body is provided with a scale discharging port and a water inlet which are communicated with the inner cavity of the boiler;

the vibrator is arranged on the pot body and is controlled to provide a vibration force for driving the pot body to vibrate in at least one direction; and

and the first pipeline assembly is connected with the water inlet in a matching mode and is communicated with the water inlet in a fluid mode to form a cleaning channel for supplying water to the inner cavity of the boiler.

In one embodiment, the first pipeline assembly comprises a water inlet pipe, a steam outlet pipe and a communicating pipe, and the boiler body is provided with a steam outlet communicated with the inner cavity of the boiler;

wherein, the inlet tube join in marriage connect in the water inlet, go out the steam pipe join in marriage connect in go out the steam port, the intercommunication pipe fluid intercommunication in the inlet tube with go out between the steam pipe.

In one embodiment, the first pipe assembly includes a water inlet valve coupled to the communicating pipe for controlling the opening and closing of the cleaning channel.

In one embodiment, the first pipe assembly includes a steam outlet valve, and the steam outlet valve is coupled to the steam outlet pipe and located outside the water flow path of the cleaning channel, and is used for opening and closing communication between the outside and the boiler inner cavity.

In one embodiment, the steam boiler has a descaling state in which the inlet valve and the outlet valve are closed and a cleaning state lagging the descaling state or synchronized with the descaling state in which the inlet valve is open and the outlet valve is closed.

In one embodiment, the system further comprises a flow sensor and a controller, the controller is electrically connected with the flow sensor, the water inlet valve and the steam outlet valve, the flow sensor is used for detecting a flow value at the water inlet, and the controller is used for controlling the steam boiler to be sequentially or synchronously switched to the descaling state and the cleaning state when the flow value is greater than a preset value.

In one embodiment, the boiler further comprises a second pipeline assembly, wherein the second pipeline assembly is matched with the scale discharging port and is communicated with the scale discharging port in a fluid mode to form a scale discharging channel for discharging the scale from the inner cavity of the boiler to the outside after vibration.

In one embodiment, the second pipeline assembly comprises a drain pipe and a scale discharge valve, the drain pipe is connected to the scale discharge port in a matching mode, and the scale discharge valve is used for controlling opening and closing of the scale discharge channel.

In one embodiment, the boiler further comprises a driving member mounted on the boiler body, wherein the driving member is in transmission connection with the vibrator and is used for driving the vibrator to slide along the circumferential direction of the boiler.

In one embodiment, the outer wall of the boiler is provided with an annular groove and an annular rail, the annular groove extends along the circumferential direction of the boiler body, the vibrator is at least partially accommodated in the annular groove, and the driving piece can operatively slide along the annular rail to drive the vibrator to slide along the annular groove.

In one embodiment, the vibrator further comprises a pressing plate, the pressing plate is mounted at the edge of the notch of the annular groove, and the projection parts of the pressing plate and the vibrator at the bottom of the annular groove are overlapped.

A steam car washer comprises the steam boiler.

When the steam boiler needs to remove scale, the vibrator provides a vibration force to enable the boiler body to vibrate in at least one direction in a reciprocating mode, and the vibration frequency of the boiler body is equal to the natural frequency of the scale. Therefore, the scale and the pan body form resonance, and the scale and the pan body can be separated. Then, the separated scale is discharged from the scale discharge port. In addition, water can be input into the inner cavity of the boiler from the cleaning channel so as to further clean the inner cavity of the boiler. And then, water and water scale are discharged from the scale discharging port, so that the residue of the water scale is reduced. Therefore, the scale in the inner cavity of the boiler is greatly reduced by the steam boiler after vibration and cleaning, so that the content of the scale carried in the steam can be greatly reduced, the steam car washer and the steam boiler thereof do not need to repeatedly wash the car during working, and the cleaning efficiency is convenient to improve.

Drawings

FIG. 1 is a cross-sectional view of a steam boiler in accordance with an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a steam car washing machine (not shown). The steam car washer 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 and communicated with the exhaust port. During use, steam within the steam boiler 10 may flow out through the exhaust port and be sprayed from the spray gun for cleaning the vehicle.

The steam boiler 10 includes a boiler body 11, a burner 12, a vibrator 19, and a first pipe assembly 23. Boiler body 11 is used for holding the water to be heated, and combustion furnace 12 is accommodated in boiler body 11 and used for heating the water in boiler body 11. The vibrator 19 and the first pipeline assembly 23 are both connected to the pot body 11 and used for cleaning and descaling the pot body 11. Specifically, pan body 11 includes a bottom wall, a top wall opposite the bottom wall, and side walls connected between the bottom wall and the top wall. The bottom wall, top wall and side walls collectively define a boiler chamber 111 for holding water. Wherein, when the pot body 11 is normally placed, the bottom wall is the side (for example, the plane such as the ground, the table top, etc.) of the pot body 11 facing the supporting surface.

The pan body 11 is provided with a dirt discharge port 112 and a water inlet 113 which are communicated with the inner cavity 111 of the boiler. The discharge port is also opened on the boiler body 11 and communicated with the inner cavity 111 of the boiler. The water inlet 113 and the discharge port are opened in the bottom wall, and the scale discharge port 112 is opened in the side wall.

The combustion furnace 12 is housed and fixed in the boiler chamber 111, and is provided separately from the boiler chamber 111. The combustibles are combusted in the furnace 12, and the water flowing through the furnace 12 in the boiler chamber 111 is heated. Specifically, the steam boiler 10 further 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 cavity 111 and is inserted into the combustion furnace 12. The opposite ends of the heating pipe 13 are both communicated with 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 inlet tube 14 extends partially into the furnace 12 and is in communication with the furnace 12. The ignition portion of the ignition gun 15 extends to a port where the oil inlet pipe 14 communicates with the combustion furnace 12. Chimney 16 communicates with furnace 12 to exhaust fumes from the combustion of the oil.

Wherein the steam boiler 10 has an operating state, and when the steam boiler 10 is in the operating state, water is input from the water inlet 113 to the boiler cavity 111. Since the heating tube 13 communicates with the boiler interior 111, the heating tube 13 can be filled with water. Further, the oil supply pipe 14 is supplied with oil, and the ignition gun 15 is ignited to burn the oil in the combustion furnace 12. Then, the temperature in the combustion furnace 12 rises, and the water in the heating pipe 13 is heated by the heat transfer to form steam, and overflows from the heating pipe 13 into the boiler inner chamber 111. The steam then flows out of the exhaust for cleaning.

Further, the steam boiler 10 also comprises a housing 17. The shell 17 is coated on the surface of the pot body 11 and used for isolating the pot body 11 from the outside so as to protect the pot body 11 and prolong the service life of the boiler.

Still further, the steam boiler 10 also includes insulation blocks 18. Heat insulation brick 18 is clamped between the bottom wall of pot body 11 and the inner wall of shell 17, so that shell 17 and pot body 11 are arranged at intervals to realize heat insulation between pot body 11 and shell 17. When the oil in the combustion furnace 12 is combusted, the temperature of the pot 11 will rise accordingly by the heat transfer. Under the action of the heat insulation bricks 18, the heat on the pot body 11 can not be conducted to the shell 17, the service life of the shell 17 can be prolonged, and the situation that the temperature of the shell 17 is increased to scald operators can be prevented.

Vibrator 19 is mounted on pan body 11, and vibrator 19 is controlled to provide a vibratory force that causes pan body 11 to vibrate reciprocally in at least one direction. The vibration force drives the pot body 11 to vibrate, and the vibration frequency of the pot body 11 is 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 may be controlled by a human power or a controller. The scale separated from the pot body 11 is mixed with water in the inner chamber 111 of the boiler and discharged from the scale discharge port 112. The first conduit assembly 23 is coupled to the water inlet 113 and is in fluid communication with the water inlet 113 to form a cleaning path for the feed water to the boiler interior 111. Water is input into the boiler inner cavity 111 through the cleaning channel so as to further clean the boiler inner cavity 111 and avoid water scale from remaining in the boiler inner cavity 111. Then, the water and the scale are discharged from the scale discharge port 112. Through the boiler inner cavity 111 after vibration and cleaning, the scale is greatly reduced, so that the content of the scale carried in the steam can be greatly reduced, the steam car washer and the steam boiler 10 thereof do not need to repeatedly wash the car during working, and the cleaning efficiency is convenient to improve.

Specifically, the steam boiler 10 has a descaling state and a cleaning state. The cleaning state and the descaling state can be carried out synchronously or lags 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 supplied from the cleaning passage to the boiler chamber 111, and the boiler chamber 111 is cleaned.

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

Specifically, vibrator 19 is mounted to a side wall of pan body 11 and is positioned within housing 17. Thus, on the one hand, the vibrator 19 is prevented from malfunctioning due to long-term contact with steam, and on the other hand, the vibrator 19 is also protected by the housing 17, so that the service life of the vibrator 19 is extended. It is understood that in other embodiments, the mounting position of the vibrator 19 relative to the pot 11 may be determined according to the requirement, and only the vibrator 19 needs to provide a vibrating force to the pot 11 to achieve the descaling function, which is not limited herein.

Specifically, if the vibrator 19 has a large energy when vibrating and can drive the whole pot 11 to vibrate, the vibrator 19 can be directly fixed or detachably mounted at a specific position on the sidewall of the pot 11. If the vibrator 19 has 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 completely clean the scale.

In general, the amount of energy when the vibrator 19 vibrates is closely related to the volume thereof. The greater the energy, the greater the volume of the vibrator 19; the smaller the energy, the smaller the volume of the vibrator 19. In order to reduce the size of the vibrator 19 and to miniaturize the steam boiler 10, the vibrator 19 with smaller energy is generally provided, and the position of the vibrator 19 on the boiler body 11 can be changed.

In this particular embodiment, the steam boiler 10 further comprises a drive member 21. The driving piece 21 is arranged on the pot body 11 and is in transmission connection with the vibrator 19. The driving member 21 is used for driving the vibrator 19 to slide along the circumferential direction of the pot body 11.

The vibrator 19 slides to apply a vibrating force to the pot body 11 along the circumferential direction of the pot body 11 so as to remove scale from the circumferential direction of the pot body 11, thereby reducing the residue of the scale on the inner wall of the pot body 11.

Further, in the present embodiment, the outer wall of the pot body 11 is provided with an annular groove 115 and an annular rail 116 extending along the circumferential direction of the pot body 11. The vibrator 19 is at least partially received in the annular groove 115, and the driving member 21 is operable to slide along the annular track 116 to drive the vibrator 19 to slide along the annular groove 115.

It should be noted that the vibrator 19 is at least partially received in the annular groove 115, and the vibrator 19 may be partially received in the annular groove 115, or the vibrator 19 may be completely received in the annular groove 115.

Specifically, annular groove 115 is formed by the sidewall depression of pan body 11. An annular track 116 is provided along the periphery of the top wall of pan body 11. The vibrator 19 is in transmission connection with the driving member 21 through a rigid member such as a transmission rod, a transmission shaft and the like. The driving member 21 can slide on the annular rail 116 by means of manual driving or controller driving, etc., to drive the vibrator 19 to slide along the extending direction of the annular groove 115.

The annular groove 115 has guiding and limiting functions on the sliding of the vibrator 19 and the sliding of the annular rail 116 on the driving member 21, so that the driving member 21 and the vibrator 19 can circularly move along a preset rail, and the vibrator 19 and the driving member 21 can slide more stably. In addition, the annular groove 115 has a bearing effect on the vibrator 19, and the annular groove 115 exerts a bearing force on the vibrator 19, which counteracts the gravity of the vibrator 19, so as to prevent the vibrator 19 from pulling the driving member 21 under its own gravity, and the driving member 21 from falling off the ceiling due to excessive resistance to sliding of the driving member 21.

Further, the steam boiler 10 also comprises a pressure plate 22. The pressing plate 22 is installed at the notch edge of the annular groove 115, and the projection parts of the pressing plate 22 and the vibrator 19 at the groove bottom of the annular groove 115 are overlapped.

Vibrator 19 applies a vibrating force to pot body 11 by vibrating itself. However, the vibrator 19 may come out of the annular groove 115 and fall when vibrating itself. The pressing plate 22 is mounted on the notch of the annular groove 115, so that the portion of the vibrator 19 received in the annular groove 115 or the entire vibrator 19 can be always abutted against the annular groove 115, thereby preventing the vibrator 19 from jumping and falling out of the annular groove 115.

Specifically, the pressure plate 22 may be disposed on one side edge of the notch of the annular groove 115, or may be disposed on two opposite side edges of the notch of the annular groove 115.

The first pipe assembly 23 includes a water inlet pipe 231, a steam outlet pipe 233, and a communication pipe 232. The boiler body 11 is provided with a steam outlet 114 communicated with the inner cavity 111 of the boiler. Wherein, the inlet pipe 231 is connected to the inlet 113, the outlet pipe 233 is connected to the outlet 114, and the connection pipe 232 is in fluid connection between the inlet pipe 231 and the outlet pipe 233.

Specifically, one end of the water inlet pipe 231 is coupled to the water inlet 113, and the other end thereof extends out of the housing 17. The steam outlet pipe 233 is coupled to the steam outlet 114, and partially extends into the boiler inner cavity 111 and partially is located outside the casing 17. The communicating pipe 232 is located outside the housing 17, and one end of the communicating pipe 232 is connected between two ends of the water inlet pipe 231, and the other end is connected between two ends of the steam outlet pipe 233.

Water may be introduced from the end of the inlet pipe 231 remote from the inlet port 113 and directly into the boiler chamber 111 through the inlet port 113. In addition, at least part of the water may flow through the water inlet pipe 231, the communicating pipe 232 and the steam outlet pipe 233 into the boiler chamber 111, and clean the boiler chamber 111.

Specifically, steam outlet 114 can be arranged at one end of the top wall and the side wall close to the top wall, one end of steam outlet pipe 233 far away from communicating pipe 232 is connected to steam outlet 114, or steam outlet 114 can be arranged at the bottom wall, steam outlet pipe 233 is connected to steam outlet 114, part of steam outlet pipe extends into boiler inner cavity 111, and extends to the top wall of pot body 11, so that water sprayed out of steam outlet pipe 233 can clean the inner wall of pot body 11 along the direction from the top wall to the bottom wall of pot body 11, and scale can be removed completely. Through the arrangement of the water inlet pipe 231, the communicating pipe 232 and the steam outlet pipe 233, the cleaning channel can be adjusted in arrangement space according to the cleaning effect required by the steam boiler 10, so that the flexibility of the arrangement of the cleaning channel is improved.

The steam boiler 10 further comprises a water transfer valve 24. Water delivery valve 24 is coupled to water inlet pipe 231 and is located between the connection between water inlet pipe 231 and connection pipe 232 and water inlet 113. The water delivery valve 24 is used to open and close the communication 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 may flow through the water inlet pipe 231 and the water inlet 113 and enter the boiler cavity 111, and the rest of the water may be diverted in the process of flowing through the water inlet pipe 231 and enter the communicating pipe 232. If the water delivery valve 24 is closed, the water inputted from the end of the water inlet pipe 231 far 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 connection pipe 232. Therefore, by providing the water transfer valve 24, the flow direction of the water can be controlled to meet the operation requirements of the steam boiler 10 under different conditions.

The first pipe assembly 23 includes a water inlet valve 234, and the water inlet valve 234 is coupled to the communicating pipe 232 for controlling the opening and closing of the cleaning path.

Specifically, the water inlet valve 234 is opened, water inputted from an end of the water inlet pipe 231 far from the water inlet 113 can flow through the cleaning passage and enter the boiler chamber 111 to clean the boiler chamber 111, and the steam boiler 10 is switched to the cleaning state. The water inlet valve 234 is closed and the purge path is closed, the purge state is completed, and the steam boiler 10 can be switched to the operation state or the descaling state. By arranging 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 a cleaning state and other states.

The steam outlet pipe 233 is provided in plurality, and the plurality of steam outlet pipes 233 are arranged along the circumferential direction of the pot body 11. Each steam outlet pipe 233 is communicated with the communicating pipe 232. The washing water flowing through the communicating pipe 232 can flow out from the plurality of steam outlet pipes 233, and the pot body 11 is completely washed along the circumferential direction of the pot body 11, so that the residue of the scale in the inner cavity 111 of the boiler is further reduced.

The first pipe assembly 23 further includes a steam outlet valve 235, and the steam outlet valve 235 is coupled to the steam outlet pipe 233, is located outside the water flow path of the cleaning passage, and is used for opening and closing the communication between the outside and the boiler inner chamber 111.

In this embodiment, the steam outlet 114 is a discharge outlet. The steam outlet valve 235 is disposed at an end of the steam outlet pipe 233 far from the top wall. When the steam boiler 10 is in operation, 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 a cleaning state, the steam outlet valve 235 is closed, and water flows into the boiler chamber 111 through the water inlet pipe 231, the communicating pipe 232, and the steam outlet pipe 233 and is used for cleaning. By providing the steam outlet valve 235, the steam outlet pipe 233 has the functions of cleaning and steam outlet, so as to meet the requirements of the steam boiler 10 in different working states. Moreover, the outlet pipe 233 can be integrated by only providing the outlet valve 235, so as to reduce the number of the pipes in the steam boiler 10 and the cost.

The opening and closing of the water transfer valve 24, the water inlet valve 234 and the steam outlet valve 235 of the steam boiler 10 in the working state, the descaling state and the cleaning state will be described in detail.

In operation, water delivery valve 24 and steam outlet valve 235 are both open, and water flows into boiler cavity 111 through water inlet pipe 231 and water inlet 113, and is heated in boiler cavity 111 to form steam. Then, the steam is discharged from the steam outlet pipe 233. The water inlet valve 234 is closed to close the purge path to prevent water from flowing into the steam outlet pipe 233 to hinder the discharge of steam.

In the descale state, the water inlet valve 234 is closed, so that the purge passage is closed. The vibrated scale may be discharged from the scale discharge port 112. At this time, the water delivery valve 24 may be opened or closed. If the water delivery valve 24 is open, water can be delivered into the boiler chamber 111 from the water inlet 113 to ensure that there is sufficient water in the boiler chamber 111 to carry scale away from the scale outlet 112. If the water delivery valve 24 is closed, the water stored in the boiler chamber 111 can also discharge scale smoothly. The steam outlet valve 235 is closed, so that water can be prevented from flowing out of the end of the steam outlet pipe 233 far away from the top wall, and waste can be avoided.

In the cleaning state, the inlet valve 234 is opened. Water can be fed into the boiler cavity 111 from the cleaning channel to clean the boiler cavity 111, so as to prevent scale from remaining on the inner wall of the pot body 11. Further, the scale can be discharged from the scale discharge port 112 to improve the cleanliness of the boiler inner chamber 111. The steam outlet valve 235 is closed, so that water can be prevented from flowing out of the end of the steam outlet pipe 233 far away from the top wall, and waste can be avoided. At the same time, water delivery valve 24 may be opened or closed, preferably with water delivery valve 24 closed. Therefore, water can be directly sprayed out from the steam outlet pipe 233 in a concentrated manner without being branched through the water inlet 113. The intensively sprayed water has larger impact force and can have better scouring effect on the inner wall of the pot body 11 so as to reduce the residue of water scale on the inner wall of the pot body 11.

In this embodiment, the descaling state and the cleaning state are performed simultaneously. At this point, water transfer valve 24 and vapor outlet valve 235 are both closed and water inlet valve 234 is opened. So that the descaling and cleaning functions of the steam boiler 10 can be performed simultaneously, and the cleaning and descaling efficiency of the steam boiler 10 can be improved conveniently.

The steam boiler 10 further comprises a flow sensor (not shown) and a controller. The controller is electrically connected to the flow sensor, inlet valve 234 and outlet valve 235. The flow sensor is used for detecting the flow value at the water inlet 113, and the controller is used for controlling the steam boiler 10 to be sequentially or synchronously switched to a descaling state and a cleaning state when the flow value is larger than a preset value.

Specifically, the controller is also electrically connected to the water delivery valve 24. The flow sensor may detect the flow value at the water inlet 113 and send a signal to the controller. The controller receives the signals received by the flow sensor and compares the flow values. Specifically, the preset value may be 1T, 2T, or the like. 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 be opened, the water inlet valve 234 to be closed, and the steam boiler 10 is in the working state. When the flow value is larger than the preset value, the controller controls the steam outlet valve 235 to be closed, and the steam boiler 10 is switched to the descaling state from the working state. And further controls the water inlet valve 234 to be opened, the steam boiler 10 is switched from the descaling state to the cleaning state. If the descaling state and the cleaning state are synchronous, when the flow value is greater than the preset value, the controller may control the water delivery valve 24 and the steam outlet valve 235 to be closed, and the water inlet valve 234 to be opened, so that the steam boiler 10 may be synchronously switched from the operating state to the descaling state and the cleaning state.

When the closing time of the steam outlet valve 235 exceeds the preset time period, the controller controls the flow sensor to return to zero and controls the water inlet valve 234 to close, and the steam boiler 10 is switched from the cleaning state to the working state. The steam boiler 10 resumes the state cycle.

By arranging the flow sensor and the controller, the steam boiler 10 can be automatically switched among the working state, the cleaning state and the descaling state, so that the automation of the steam boiler 10 is realized.

The steam boiler 10 further comprises a second tube 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 discharging the vibrated scale from the boiler inner chamber 111.

Therefore, the scale in the boiler inner chamber 111 can be discharged outwards through the scale discharge port 112 and the scale discharge passage, and is discharged to a designated position under the guidance of the scale discharge passage, so as to be collected.

Specifically, the second pipe assembly 25 includes a drain pipe 251 and a drain valve 252. The drain pipe 251 is coupled to the dirt discharge port 112, and the dirt discharge valve 252 is used for controlling the opening and closing of the dirt discharge passage.

The drain valve 252 is disposed in the drain pipe 251. The scale discharge valve 252 is opened and the scale discharge passage is opened, and the scale is mixed with the water in the inner chamber 111 of the boiler and discharged from the scale discharge passage. The scale discharge valve 252 is closed and the scale discharge passage is closed to prevent water in the boiler inner chamber 111 from overflowing from the scale discharge passage. Specifically, the opening or closing of the blowdown valve 252 may be set according to different states of the steam boiler 10. When the steam boiler 10 is in operation, the scale discharging valve 252 is closed to prevent the water in the boiler cavity 111 from overflowing the scale discharging port 112 and the scale discharging passage, so that the boiler cavity 111 has a sufficient amount of water to be heated and evaporated. 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 providing the drain valve 252 and the drain pipe 251, the drain passage can be opened and closed in different states of the steam boiler 10 to meet different state requirements of the steam boiler 10.

Specifically, the drain valve 252 is also electrically connected to the controller, and the controller controls the drain valve 252 to open when the flow value is greater than a preset value. When the flow value is smaller than or equal to the preset value, the controller controls the scale discharging valve to be closed so as to realize the automatic opening and closing of the scale discharging valve 252.

In addition, in some other embodiments, when the steam boiler 10 does not have the drain pipe 251 and the drain valve 252, in order to prevent the water from overflowing from the boiler cavity 111 when the steam boiler 10 is in operation, the scale removing opening 112 may be blocked by an end cover, a plug, or the like, or the scale removing opening 112 may be disposed at a position far away from the bottom wall of the side wall, so as to ensure that the boiler cavity 111 has a sufficient amount of water for heating and evaporation.

In the steam car washing machine and the steam boiler 10 thereof, when the steam boiler 10 needs to remove scale, the vibrator 19 provides a vibration force, so that the pot body 11 vibrates in at least one direction in a reciprocating manner, and the frequency of the vibration of the pot body 11 is equal to the natural frequency of the scale. Therefore, the scale resonates with the pot body 11, and the scale can be separated from the pot body 11. Then, the separated scale is discharged from the scale discharge port 112. Furthermore, water can also be fed from the cleaning channel to the boiler chamber 111 to further clean the boiler chamber 111. Then, the water and the scale are discharged from the scale discharge port 112, so that the residue of the scale is reduced. Therefore, the steam boiler 10 after being vibrated and cleaned has the advantages that the scale in the boiler cavity 111 is greatly reduced, so that the content of the scale carried in the steam can be greatly reduced, the steam car washer and the steam boiler 10 thereof do not need to repeatedly wash the car during working, and the cleaning efficiency is convenient to improve.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A steam boiler, comprising:

2. A steam boiler according to claim 1, wherein the first pipe assembly comprises a water inlet pipe, a steam outlet pipe and a communicating pipe, and the boiler body is provided with a steam outlet communicated with the inner cavity of the boiler;

3. A steam boiler according to claim 2, characterized in that the first conduit assembly comprises a water inlet valve coupled to the communicating tube for controlling the opening and closing of the purge passage.

4. A steam boiler according to claim 3, wherein the first tube assembly comprises a steam outlet valve coupled to the steam outlet tube and located outside the water flow path of the cleaning channel for opening and closing communication between the outside and the boiler chamber.

5. A steam boiler according to claim 4, characterized in that the steam boiler has a descaling state, in which the inlet valve and the outlet valve are closed, and a cleaning state, in which the inlet valve is open and the outlet valve is closed, lagging behind or synchronized with the descaling state.

6. The steam boiler according to claim 5, further comprising a flow sensor electrically connected to the flow sensor, the inlet valve and the outlet valve, the flow sensor being configured to detect a flow value at the inlet valve, and a controller configured to control the steam boiler to switch to the descaling state and the cleaning state sequentially or simultaneously when the flow value is greater than a preset value.

7. A steam boiler according to claim 1, further comprising a second pipe assembly coupled to the scale removal port and in fluid communication with the scale removal port to form a scale removal channel for removal of vibrated scale outwardly from the boiler chamber.

8. A steam boiler according to claim 7, characterized in that the second pipe assembly comprises a drain pipe coupled to the scale discharge opening and a scale discharge valve for controlling the opening and closing of the scale discharge channel.

9. A steam boiler according to claim 1, further comprising a driving member mounted to the boiler body, the driving member being in driving connection with the vibrator and adapted to drive the vibrator to slide along the circumference of the boiler.

10. A steam boiler according to claim 9, wherein the outer wall of the boiler is provided with an annular groove extending circumferentially around the boiler body and an annular rail, the vibrator being at least partially received in the annular groove, the driving member being operable to slide along the annular rail to drive the vibrator to slide along the annular groove.

11. A steam boiler according to claim 10, further comprising a pressure plate, wherein the pressure plate is mounted on the edge of the groove opening of the annular groove, and the projection parts of the pressure plate and the vibrator on the bottom of the annular groove are coincided.

12. A steam car washer, characterized in that it comprises a steam boiler according to any one of the claims 1 to 11.