A kind of automatic tank premixed abrasive water jet equipment based on submerged body under wet abrasive screening
Patent Information
- Application Number
- CN201810028617.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-01-12
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2038-01-12
AI Technical Summary
[0003]然而，然而，现有的湿式磨料筛选自动罐装前混合磨料水射流设备不能使磨料在水淹没状态下实现筛选和自动灌装功能，还既不能避免潮湿的磨料难以灌装的情况发生又不能避免停泵装砂，无法实现前混合磨料射流设备连续射流功能，有些湿式磨料筛选自动罐装前混合磨料水射流设备不能确保磨料混合液和低压水分别输送功能，降低了筛砂和罐砂效率，延长了前混合磨料射流设备工作时间，有些湿式磨料筛选自动罐装前混合磨料水射流设备无法对处于淹没状态下的磨料进行筛选并未被筛选的废杂进行排出，还不能实现对磨料罐内进行磨料与水混合液进行自动灌装功能；有些湿式磨料筛选自动罐装前混合磨料水射流设备既不能确保磨料始终处于淹没状态下又不能将筛砂框内的未被筛选的磨料经冲洗管内的低压水从倾斜排道中冲出，有些湿式磨料筛选自动罐装前混合磨料水射流设备既不能采用步进电机电控来控制筛选后的磨料电动上位砂控阀启闭又不能保证低压水始终能经低压直通水道输入到磨料罐中，还有的湿式磨料筛选自动罐装前混合磨料水射流设备既无法将磨料罐内高压状态卸载到低压状态并防止将高压状态下的水进入到湿式自动罐砂装置内，又不能将磨料与水的混合液输入到磨料罐中并防止高压状态下的水进入到罐砂管内，还无法避免损坏砂浆泵或磨料与水的混合液回流情况发生，不能满足实际情况的需求
[0012]与现有的技术相比，本发明的有益效果是：本发明能使磨料在水淹没状态下实现筛选和自动灌装功能，既能避免潮湿的磨料难以灌装的情况发生又能避免停泵装砂及无法实现前混合磨料射流设备连续射流功能，还能确保磨料混合液和低压水分别输送功能，提高筛砂和罐砂效率，极大地延长前混合磨料射流设备工作时间和工作效率。通过设置筛砂室、溢流保湿室、排渣室和电动罐砂器能对处于淹没状态下的磨料进行筛选并未被筛选的废杂进行排出，还能实现对磨料罐内进行磨料与水混合液进行自动灌装功能；通过在筛砂框的上侧面的下侧设置溢流管能确保磨料始终处于淹没状态下；通过设置砂浆管、倾斜排道、冲洗管和低压水管能将筛砂框内的未被筛选的磨料经冲洗管内的低压水从倾斜排道中冲出，通过设置电动上位砂控阀、低压直通水道、溢流分路通道和冲洗分路通道既能采用步进电机电控来控制筛选后的磨料电动上位砂控阀启闭又能保证低压水始终能经低压直通水道输入到磨料罐中，通过设置高压端座、侧位通道、泄压阀和高压截止阀甲有助于将磨料罐内高压状态卸载到低压状态并防止将高压状态下的水进入到湿式自动罐砂装置内，通过设置上通道、高压截止阀乙、罐砂管和砂浆泵有助于将磨料与水的混合液输入到磨料罐中并防止高压状态下的水进入到罐砂管内，防止损坏砂浆泵或磨料与水的混合液回流情况发生，且结构简单，操作方便，经济实用。
Smart Images
Figure CN108044519B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of waterjet machinery and equipment design technology, and in particular to a waterjet equipment for automatic pre-filling mixing of abrasives based on wet abrasive screening under submerged conditions. Background Technology
[0002] A water jet is a high-speed stream of water of various shapes formed by flowing out of a nozzle. The velocity of the jet depends on the pressure drop across the nozzle exit section. Water jetting is one of the simplest forms of energy conversion and application. Typically, a power-driven pump completes a suction and discharge process, pumping a certain amount of water into a high-pressure pipeline, allowing it to reach the nozzle with a certain amount of energy. Since the nozzle orifice diameter is required to be much smaller than the high-pressure pipeline diameter, the water reaching the nozzle must be accelerated to flow out of the nozzle orifice. Thus, the water accelerated and condensed through the nozzle orifice forms a jet.
[0003] However, existing wet abrasive screening automatic pre-filling abrasive water jet equipment cannot achieve screening and automatic filling functions for abrasives under water-submerged conditions. It also cannot prevent situations where wet abrasives are difficult to fill, nor can it avoid pump stoppages during sand filling. It cannot achieve continuous jetting functionality for the pre-mixing abrasive water jet equipment. Some wet abrasive screening automatic pre-filling abrasive water jet equipment cannot ensure the separate delivery of the abrasive mixture and low-pressure water, reducing screening and filling efficiency and prolonging the operating time. Some wet abrasive screening automatic pre-filling abrasive water jet equipment cannot screen submerged abrasives and discharge unscreened waste, nor can it achieve automatic filling of the abrasive-water mixture in the abrasive tank. Some wet abrasive screening automatic pre-filling abrasive water jet equipment... The jetting equipment cannot ensure that the abrasive is always submerged, nor can it flush out the unscreened abrasive from the screening frame through the low-pressure water in the flushing pipe via the inclined drain. Some wet abrasive screening automatic pre-filling mixing abrasive water jetting equipment cannot use stepper motor electrical control to control the opening and closing of the electric upper sand control valve of the screened abrasive, nor can it guarantee that low-pressure water can always be input into the abrasive tank through the low-pressure direct water channel. Other wet abrasive screening automatic pre-filling mixing abrasive water jetting equipment cannot unload the high-pressure state in the abrasive tank to a low-pressure state and prevent high-pressure water from entering the wet automatic sand filling device, nor can it input the abrasive-water mixture into the abrasive tank and prevent high-pressure water from entering the sand filling pipe. Furthermore, it cannot prevent damage to the slurry pump or backflow of the abrasive-water mixture, failing to meet the actual needs. Therefore, it is necessary to provide a simple, quick, convenient, safe, and efficient wet abrasive screening automatic pre-filling mixing abrasive water jetting equipment based on a submerged state. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a simple, quick and convenient, safe and efficient automatic pre-filling mixing abrasive water jet device based on wet abrasive screening in a submerged state.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A wet abrasive screening automatic mixing abrasive water jet device based on submerged body wet abrasive screening, comprising a high-pressure pump station, and further comprising a wet automatic sand-filling device and a high-pressure abrasive tank. The wet automatic sand-filling device includes a sand screening chamber, an overflow humidity chamber, a slag discharge chamber, and an electric sand-filling device. The sand screening chamber, overflow humidity chamber, and slag discharge chamber are arranged sequentially from left to right. An overflow pipe is installed between the sand screening chamber and the overflow humidity chamber. The overflow pipe is horizontally positioned. A sand screening frame is installed at the upper end of the sand screening chamber, and a slurry pipe is installed at the bottom of the sand screening chamber. The upper side of the sand screening frame is located below the horizontal axis of the overflow pipe. An inclined discharge channel is provided between the sand screening chamber and the slag discharge chamber. The left end of the inclined discharge channel is positioned above the right end of the inclined discharge channel. A flushing pipe is installed at the upper end of the slag discharge chamber, and the flushing pipe is also located above the inclined discharge channel. A low-pressure water jet is installed at the bottom of the overflow humidity chamber. The electric sand tank includes an electric upper sand control valve, a low-pressure direct water channel, an overflow branch channel, and a flushing branch channel. The axes of the electric upper sand control valve, the overflow branch channel, and the flushing branch channel are all perpendicular to the axis of the low-pressure direct water channel. The electric upper sand control valve is connected to the bottom of the sand screening chamber through a slurry pipe. The overflow branch channel is connected to the overflow pipe through a pipe and a check valve. The flushing branch channel is connected to the flushing pipe through a pipe and a check valve. A high-pressure end seat is installed at the upper end of the high-pressure abrasive tank. The high-pressure end seat has a side channel and an upper channel. The side channel is connected to a pressure relief valve and a high-pressure shut-off valve A through a three-way valve. The right end of the high-pressure shut-off valve A is connected to the flushing pipe through a pipe and a check valve. A high-pressure shut-off valve B is installed on the upper channel. The right end of the high-pressure shut-off valve B is connected to the sand tank pipe. The sand tank pipe is connected to the low-pressure direct water channel. A slurry pump is installed in the middle of the sand tank pipe.
[0006] As a preferred embodiment of the present invention, a mixing chamber is installed at the lower end of the high-pressure abrasive tank, a high-pressure pump station is connected to the left end of the mixing chamber via a high-pressure hose, a spray gun is connected to the right end of the mixing chamber via a high-pressure hose, and a stepper motor is installed on the electric upper sand control valve.
[0007] As a preferred embodiment of the present invention, a reflux connector is installed on the left side of the wet automatic sand hopper, and a lower sand hopper is installed at the upper end of the wet automatic sand hopper.
[0008] When using it on site, the operator first pours the abrasive into the lower sand hopper and introduces low-pressure water into the electric sand maker. The low-pressure water is output in three ways: one low-pressure water enters the flushing pipe through the flushing branch channel, another low-pressure water enters the overflow humidification chamber through the overflow branch channel, and the third low-pressure water enters the sand maker pipe directly through the low-pressure straight channel, and then enters the high-pressure abrasive tank through the upper channel via the sand pump on the sand maker pipe.
[0009] Secondly, low-pressure water enters the overflow humidification chamber and fills the overflow humidification chamber with low-pressure water. The low-pressure water then enters the sand screening chamber through the overflow pipe, filling the sand screening chamber with water. At this time, the sand screening frame and the abrasive entering the sand screening frame are completely submerged in water. The sand screening device on the side of the sand screening frame is activated to screen the abrasive in the sand screening frame. The screened abrasive falls into the sand screening chamber, while the unscreened abrasive enters the slag discharge chamber through the inclined discharge channel and is flushed into the slag discharge chamber by the low-pressure water in the flushing pipe, and is discharged from the outlet at the bottom of the slag discharge chamber.
[0010] Next, start the stepper motor and mortar pump in sequence, so that the stepper motor rotates forward and the electric upper sand control valve is in the open state. The abrasive in the sand screening chamber enters the low-pressure direct water channel through the mortar pipe. The abrasive mixes with the low-pressure water in the low-pressure direct water channel and is then pumped into the upper channel by the mortar pump on the sand tank pipe. It then enters the mixing chamber through the high-pressure end seat and the abrasive tank in sequence and is sprayed out by the spray gun. Then, the stepper motor reverses and the electric upper sand control valve is in the closed state. At this time, the abrasive in the sand screening chamber cannot enter the low-pressure direct water channel. The low-pressure water in the low-pressure direct water channel enters the abrasive tank from the upper channel through the mortar pump.
[0011] Finally, the operator sequentially closes the abrasive valve at the bottom of the abrasive tank and the controls in the equipment. After all the water output from the spray gun is clean, the operator reduces the output flow of the high-pressure pump station until the high-pressure pump station is turned off. Based on the next work time, the abrasive in the abrasive tank is cleaned properly, and regular equipment maintenance is performed before the next work is scheduled.
[0012] Compared with existing technologies, the beneficial effects of the present invention are: the present invention enables abrasives to achieve screening and automatic filling functions in a water-submerged state, which can avoid the situation where wet abrasives are difficult to fill, avoid pump stoppage for sand filling and the inability to realize the continuous jet function of the pre-mixed abrasive jet equipment, and also ensure the separate delivery of abrasive mixture and low-pressure water, improve the efficiency of sand screening and sand filling, and greatly extend the working time and efficiency of the pre-mixed abrasive jet equipment. By incorporating a sand screening chamber, an overflow and humidification chamber, a slag discharge chamber, and an electric sand hopper, the submerged abrasive can be screened, and unscreened waste can be discharged. It also features automatic filling of the abrasive-water mixture into the abrasive hopper. An overflow pipe on the lower side of the upper side of the sand screening frame ensures the abrasive remains submerged. A mortar pipe, inclined drainage channel, flushing pipe, and low-pressure water pipe allow unscreened abrasive from the sand screening frame to be flushed out through the inclined drainage channel by low-pressure water in the flushing pipe. The system also incorporates an electric upper-level sand control valve, a low-pressure direct-flow water channel, an overflow branch channel, and a flushing branch channel, enabling stepper motor-controlled operation. The electric upper-level sand control valve controls the opening and closing of the screened abrasive, ensuring that low-pressure water is always input into the abrasive tank through the low-pressure direct water channel. By setting a high-pressure end seat, side channel, pressure relief valve, and high-pressure shut-off valve A, it helps to unload the high-pressure state in the abrasive tank to a low-pressure state and prevents water under high pressure from entering the wet automatic sand tank device. By setting an upper channel, high-pressure shut-off valve B, sand tank pipe, and sand pump, it helps to input the abrasive and water mixture into the abrasive tank and prevents water under high pressure from entering the sand tank pipe, preventing damage to the sand pump or backflow of the abrasive and water mixture. It has a simple structure, is easy to operate, and is economical and practical. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention;
[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the medium-wet automatic sand-making device and the high-pressure abrasive tank in the connected state.
[0015] In the diagram: 1. High-pressure pump station; 2. Wet automatic sand-collecting device; 21. Sand screening chamber; 211. Sand screening frame; 212. Mortar pipe; 22. Overflow and moisture-retaining chamber; 221. Low-pressure flushing water pipe; 23. Slag discharge chamber; 231. Flushing pipe; 24. Electric sand collector; 241. Electric upper sand control valve; 2411. Stepper motor; 242. Low-pressure direct water channel; 243. Overflow branch channel; 244. Flushing branch channel; 25. Return connector; 26. Lower sand hopper; 3. High-pressure abrasive tank; 31. High-pressure end seat; 311. Side channel; 3111. Pressure relief valve; 3112. High-pressure shut-off valve A; 312. Upper channel; 3121. High-pressure shut-off valve B; 32. Mixing chamber; 321. Spray gun; 4. Overflow pipe; 5. Inclined discharge channel; 6. Sand-collecting pipe; 61. Mortar pump. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific embodiments and illustrations.
[0017] like Figure 1 and Figure 2 As shown, the automatic pre-filling mixing abrasive water jet device for wet abrasive screening under submerged conditions includes a high-pressure pump station 1, and further includes a wet automatic sand-filling device 2 and a high-pressure abrasive tank 3. The wet automatic sand-filling device 2 includes a sand-screening chamber 21, an overflow humidity chamber 22, a slag discharge chamber 23, and an electric sand-filling device 24. The sand-screening chamber 21, the overflow humidity chamber 22, and the slag discharge chamber 23 are arranged sequentially from left to right. An overflow pipe 4 is installed between the sand-screening chamber 21 and the overflow humidity chamber 22. The overflow pipe 4 is horizontally arranged. A sand-screening frame 2 is installed at the upper end of the sand-screening chamber 21. 11. A mortar pipe 212 is installed at the bottom of the sand screening chamber 21. The upper side of the sand screening frame 211 is located below the horizontal axis of the overflow pipe 4. An inclined discharge channel 5 is provided between the sand screening chamber 22 and the slag discharge chamber 23. The left end of the inclined discharge channel 5 is located above the right end of the inclined discharge channel 5. A flushing pipe 231 is installed at the upper end of the slag discharge chamber 23. The flushing pipe 231 is also located above the inclined discharge channel 5. A low-pressure water pipe 221 is installed at the bottom of the overflow moisture chamber 22. The electric sand maker 24 includes an electric upper sand control valve 241 and a low-pressure... The system includes a direct waterway 242, an overflow branch channel 243, and a flushing branch channel 244. The axes of the electric upper-level sand control valve 241, the overflow branch channel 243, and the flushing branch channel 244 are all perpendicular to the axis of the low-pressure direct waterway 242. The electric upper-level sand control valve 241 is connected to the bottom of the sand screening chamber 21 via a mortar pipe 212. The overflow branch channel 243 is connected to the overflow pipe 221 via a pipe and a check valve. The flushing branch channel 244 is connected to the flushing pipe 231 via a pipe and a check valve. The high-pressure abrasive tank 3 is equipped with a... The device is equipped with a high-pressure end seat 31, which has a side channel 311 and an upper channel 312. The side channel 311 is connected to a pressure relief valve 3111 and a high-pressure shut-off valve A 3112 via a three-way valve. The right end of the high-pressure shut-off valve A 3112 is connected to a flushing pipe 231 via a pipe and a one-way valve. The upper channel 312 is equipped with a high-pressure shut-off valve B 3121, the right end of which is connected to a sand tank pipe 6. The sand tank pipe 6 is connected to a low-pressure direct water channel 242. A mortar pump 61 is installed in the middle of the sand tank pipe 6.
[0018] like Figure 1 and Figure 2As shown, a mixing chamber 32 is installed at the lower end of the high-pressure abrasive tank 3. The left end of the mixing chamber 32 is connected to a high-pressure pump station 1 through a high-pressure hose. The right end of the mixing chamber 32 is connected to a spray gun 321 through a high-pressure hose. A stepper motor 2411 is installed on the electric upper sand control valve 241.
[0019] like Figure 1 and Figure 2 As shown, a return connector 25 is installed on the left side of the wet automatic sand-collecting device 2, and a lower sand hopper 26 is installed at the upper end of the wet automatic sand-collecting device 2.
[0020] When used on site, the operator first pours the abrasive into the lower sand hopper 26 and introduces low-pressure water into the electric sand maker 24. The low-pressure water is output in three ways: one low-pressure water enters the flushing pipe 231 through the flushing branch channel 244, another low-pressure water enters the overflow humidification chamber 22 through the overflow branch channel 243, and the third low-pressure water directly enters the sand maker pipe 6 through the low-pressure direct water channel 242, and then enters the high-pressure abrasive tank 3 through the upper channel 312 via the sand pump 61 on the sand maker pipe 6.
[0021] Secondly, low-pressure water enters the overflow humidification chamber 22 and fills the overflow humidification chamber 22 with low-pressure water. The low-pressure water enters the sand screening chamber 21 through the overflow pipe 4, filling the sand screening chamber 21 with water. At this time, the sand screening frame 211 and the abrasive entering the sand screening frame 211 are completely submerged in water. The sand screening device on the side of the sand screening frame 211 is started to screen the abrasive in the sand screening frame 211. The screened abrasive falls into the sand screening chamber 21. The abrasive that is not screened enters the slag discharge chamber 23 through the inclined discharge channel 5 and is flushed into the slag discharge chamber 23 by the low-pressure water in the flushing pipe 231, and is discharged from the outlet at the bottom of the slag discharge chamber 23.
[0022] Next, the stepper motor 2411 and the mortar pump 61 are started in sequence, so that the stepper motor 2411 rotates forward and the electric upper sand control valve 241 is in the open state. The abrasive in the sand screening chamber 21 enters the low-pressure direct water channel 242 through the mortar pipe 212. The abrasive mixes with the low-pressure water in the low-pressure direct water channel 242 and is input into the upper channel 312 by the mortar pump 61 on the sand tank pipe 6. Then, it enters the mixing chamber 32 through the high-pressure end seat 31 and the abrasive tank 3 in sequence, and is sprayed out through the spray gun 321. Then, the stepper motor 2411 reverses and the electric upper sand control valve 241 is in the closed state. At this time, the abrasive in the sand screening chamber 21 cannot enter the low-pressure direct water channel 242. The low-pressure water in the low-pressure direct water channel 242 enters the abrasive tank 3 through the upper channel 312 via the mortar pump 61.
[0023] Finally, the operator sequentially closes the abrasive valve at the bottom of the abrasive tank 3 and the controls in the equipment. After all the water output from the spray gun 321 is clean, the output flow of the high-pressure pump station is reduced until the high-pressure pump station 1 is shut down. According to the next work time, the abrasive in the abrasive tank 3 is cleaned properly, and the equipment is regularly maintained before the next work is carried out.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pre-filling mixing abrasive water jet device for wet abrasive screening under submerged conditions, comprising a high-pressure pump station, characterized in that: It also includes a wet automatic sand-making device and a high-pressure abrasive tank. The wet automatic sand-making device includes a sand-screening chamber, an overflow humidity chamber, a slag discharge chamber, and an electric sand-making device. The sand-screening chamber, overflow humidity chamber, and slag discharge chamber are arranged sequentially from left to right. An overflow pipe is installed between the sand-screening chamber and the overflow humidity chamber. The overflow pipe is horizontally positioned. A sand-screening frame is installed at the upper end of the sand-screening chamber, and a mortar pipe is installed at the bottom of the sand-screening chamber. The upper side of the sand-screening frame is located below the horizontal axis of the overflow pipe. A [further details about the device and the slag discharge chamber are missing from the original text.] The system includes an inclined discharge channel, with its left end positioned above its right end. A flushing pipe is installed at the upper end of the slag discharge chamber, also located above the inclined discharge channel. A low-pressure water pipe is installed at the bottom of the overflow humidification chamber. The electric sand maker comprises an electric upper-level sand control valve, a low-pressure direct-flow water channel, an overflow branch channel, and a flushing branch channel. The axes of the electric upper-level sand control valve, the overflow branch channel, and the flushing branch channel are all perpendicular to the axis of the low-pressure direct-flow water channel. The electric upper-level sand control valve is connected to the bottom of the sand screening chamber via a slurry pipe. The overflow branch channel is connected to the overflow pipe via a pipe and a check valve. The flushing branch channel is connected to the flushing pipe via a pipe and a check valve. A high-pressure end seat is installed at the upper end of the high-pressure abrasive tank. The high-pressure end seat has a side channel and an upper channel. The side channel is connected to a pressure relief valve and a high-pressure shut-off valve A via a three-way valve. The right end of the high-pressure shut-off valve A is connected to the flushing pipe via a pipe and a check valve. The upper channel... A high-pressure shut-off valve B is installed on the channel. The right end of the high-pressure shut-off valve B is connected to a sand tank pipe. The sand tank pipe is connected to a low-pressure direct water channel. A slurry pump is installed in the middle of the sand tank pipe. Low-pressure water is introduced into the electric sand tanker and output in three directions. One low-pressure water enters the flushing pipe through the flushing branch channel. Another low-pressure water enters the overflow humidification chamber through the overflow branch channel. The third low-pressure water directly enters the sand tank pipe through the low-pressure direct water channel and enters the high-pressure abrasive tank through the upper channel via the slurry pump on the sand tank pipe. A mixing chamber is installed at the lower end of the high-pressure abrasive tank. A high-pressure pump station is connected to the left end of the mixing chamber via a high-pressure hose. A spray gun is connected to the right end of the mixing chamber via a high-pressure hose. A stepper motor is installed on the electric upper sand control valve.
2. The automatic pre-filling mixing abrasive water jet device based on submerged wet abrasive screening as described in claim 1, characterized in that: A reflux connector is installed on the left side of the wet automatic sand hopper, and a lower sand hopper is installed at the upper end of the wet automatic sand hopper.