Improved washing device for Lurgi coal gasifier outlet sample gas pretreatment system

Abstract

The utility model provides an improved washing device for a Lurgi coal gasifier outlet sample gas pretreatment system. The washing device comprises a washing tank, a liquid inlet hole is formed in the center of the top of the washing tank, a liquid inlet assembly is arranged at the position of the liquid inlet hole in the washing tank, a gas inlet hole is formed in the left side of the liquid inlet assembly at the top of the washing tank, and a gas inlet assembly is arranged at the position of the gas inlet hole; according to the water washing device, the contact area of gas which enters the water washing tank and needs to be purified and water washing liquid is increased by arranging the gas distributing assembly, and the water washing filtering effect of the water washing device is enhanced; by arranging the liquid level early warning assembly, the liquid level height in the washing tank can be observed, and therefore the problem that the water content of outlet air is high due to the too high liquid level in the washing tank can be avoided; by arranging the air outlet assembly, the problem that the water content of discharged air is high is further avoided; by arranging the exhaust assembly, normal operation of the washing device can be ensured.

Description

Technical Field

[0001] The utility model relates to an improved water washing device for a sample gas pretreatment system at an outlet of a Lurgi coal gasifier, belonging to the technical field of water washing devices. Background Art

[0002] The composition of raw coal gas is relatively complex, containing a large amount of tar, dust, low-boiling organic matter, acidic substances such as H2S and water vapor. It has the characteristics of high viscosity, easy crystallization, and high corrosiveness, which can easily cause blockage and corrosion of the online monitoring system, and will gradually pollute the measuring room of the instrument, which will have a great impact on the measurement. The online continuous monitoring system has an efficient sample gas pretreatment device for oil removal and dust removal to ensure the cleanliness of the sample gas, and on this basis, the dilution method is effectively integrated to ensure the accuracy of the measurement and greatly extend the maintenance cycle and service life of the instrument.

[0003] The water washing device in the existing sample gas pretreatment device cannot observe the liquid level in the water washing tank during the process of filling water into the water washing tank, resulting in a high water content in the sample gas at the detection end, which will cause inaccurate measurement values ​​of subsequent detection meters; at the same time, in the existing water washing device, the air inlet end of the device is located in the internal part of the water washing tank, which is relatively short, and there is a problem of incomplete water washing. Utility Model Content

[0004] Based on the above background, the purpose of the utility model is to provide an improved water washing device for the sample gas pretreatment system at the outlet of the Lurgi gasifier, so as to solve the problem described in the background technology that the liquid level in the water washing tank cannot be observed, resulting in a high water content in the sample gas at the detection end and the air inlet end of the device is located in a short part inside the water washing tank, resulting in incomplete water washing.

[0005] In order to solve the above problems, the utility model provides the following technical solutions: an improved water washing device for a sample gas pretreatment system at an outlet of a Lurgi gasifier, the water washing device comprising a water washing tank, a liquid inlet hole is provided at the center of the top of the water washing tank, a liquid inlet assembly is provided at the position of the liquid inlet hole on the water washing tank, an air inlet hole is provided on the left side of the liquid inlet assembly at the top of the water washing tank, an air inlet assembly is provided at the position of the air inlet hole, a gas separation assembly is provided at the position of the air inlet hole inside the water washing tank, a liquid level warning assembly is provided on the rear side of the liquid inlet assembly, an air outlet assembly is provided on the right side of the liquid inlet assembly, an exhaust assembly is provided on the front side of the liquid inlet assembly, a liquid outlet is provided at the bottom of the water washing tank, and a liquid outlet assembly is provided at the position of the liquid outlet.

[0006] Preferably, the liquid inlet assembly includes a liquid inlet head and a liquid inlet connector, the liquid inlet head is located at the liquid inlet hole, the liquid inlet head is integrally formed with the water washing tank, and the liquid inlet head is connected to the liquid inlet hole, and the liquid inlet connector is threadedly connected to the top of the liquid inlet head.

[0007] Preferably, the air intake assembly includes an air intake head and an air intake connector, the air intake head is located at the air intake hole, the air intake head is integrally formed with the water washing tank, and the air intake head is connected to the air intake hole, and the air intake connector is threadedly connected to the top of the air intake head.

[0008] Preferably, the gas distribution assembly includes a gas distribution head, a two-way joint, a first connecting pipe and an annular gas distribution pipe. The gas distribution head is located at the air inlet position inside the water washing tank, and the gas distribution head and the water washing tank are integrally formed. The first connecting pipe is fixedly connected to the gas distribution head away from the air inlet position through the two-way joint, and the annular gas distribution pipe is fixedly connected to the end of the first connecting pipe away from the two-way joint. The end of the annular gas distribution pipe away from the first connecting pipe is sealed, and a plurality of gas distribution holes that penetrate the inner cavity of the annular gas distribution pipe are provided on the wall of the annular gas distribution pipe.

[0009] Preferably, the liquid level warning assembly includes a through port, a square through pipe, a cover plate, a controller, a touch switch, an alarm, a float, a slide plate and a contact plate. The through port is opened at the top of the washing tank. The square through pipe is arranged at the through port position at the top of the washing tank, and the inner diameter of the square through pipe is larger than the inner diameter of the through port. The slide plate is slidably connected inside the through port. The float is fixedly connected to the bottom of the slide plate and is located inside the washing tank. The contact plate is fixedly connected to the top of the slide plate. The contact plate is slidably connected in the inner cavity of the square through pipe, and its size matches the size of the inner cavity of the square through pipe. The cover plate is fixedly connected to the top of the square through pipe. The touch switch is arranged at the bottom of the cover plate and is located in the inner cavity of the square through pipe. The alarm is arranged at the top of the cover plate. The controller is arranged on the side of the square through pipe. The alarm is electrically connected to the touch switch, and the touch switch is electrically connected to the controller.

[0010] Preferably, the air outlet assembly includes an air outlet hole, an air outlet head, an air outlet box and an air outlet connecting head. The air outlet hole is opened at the top of the water washing tank, the air outlet head is located at the position of the air outlet hole, and the air outlet head is integrally formed with the water washing tank. The air outlet box is threadedly connected to the air outlet head, and the top and bottom of the air outlet box are symmetrically funnel-shaped. A group of downward-inclined baffles are provided in the air outlet box, and the air outlet connecting head is threadedly connected to the top of the air outlet box.

[0011] Preferably, the exhaust assembly includes an exhaust hole, an exhaust head and a safety valve, the exhaust hole is opened at the top of the water washing tank, the exhaust head is located at the exhaust hole position, and the exhaust head is integrally formed with the water washing tank, and the safety valve flange is connected to the exhaust head.

[0012] Preferably, the liquid outlet assembly includes a liquid outlet head, a right-angle joint, a valve, a second connecting pipe and a liquid outlet connecting head. The liquid outlet head is arranged at the liquid outlet hole position and is integrally formed with the washing tank. The right-angle joint is fixedly connected to the liquid outlet head, the valve is fixedly connected to one end of the right-angle joint away from the liquid outlet head, and the liquid outlet connecting head is fixedly connected to the valve through the second connecting pipe.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses an improved water washing device for the sample gas pretreatment system at the outlet of the Lurgi gasifier, wherein a gas separation component is arranged at the position of the air inlet hole inside the water washing tank, and a gas separation head is arranged so as to be connected to the first connecting pipe through a connecting joint, and the vertical line of the first connecting pipe extends downward to below the liquid level inside the water washing tank, so that the annular gas separation pipe connected to the bottom of the first connecting pipe can be below the liquid level inside the water washing tank. When the gas to be washed and purified flows into the annular gas separation pipe from the air inlet hole, it can flow into the water washing tank through the gas separation holes opened on the outside of the annular gas separation pipe, thereby increasing the contact area between the gas to be purified entering the water washing tank and the water washing liquid, and enhancing the water washing and filtering effect of the water washing device.

[0015] The utility model discloses an improved water washing device for a sample gas pretreatment system at an outlet of a Lurgi gasifier. A liquid level warning assembly is arranged on the top of the water washing tank. When the liquid level in the water washing tank rises, the float rises with the rise of the liquid level. The rise of the float can drive the slide plate to slide upward in the through opening, and further drive the resistance plate to slide upward in the square through pipe. After the resistance plate rises to the position of the touch switch, it can abut and connect the touch switch, and then the alarm starts to sound, and the liquid level in the water washing tank can be observed, thereby avoiding the problem of high water content in the outlet gas caused by the excessively high liquid level in the water washing tank.

[0016] The utility model discloses an improved water washing device for a sample gas pretreatment system at an outlet of a Lurgi coal gasifier. By arranging an outlet head at the outlet position, the utility model can be used for a threadedly connected outlet box. The outlet box has a symmetrical funnel shape at the top and the bottom, and a group of downwardly inclined baffles are arranged inside the outlet box. When the purified sample gas passes through the outlet box, it flows out in an S shape under the action of the baffles. A small amount of water vapor inside the sample gas can be blocked by the baffles, thereby further avoiding the problem of high water content in the outlet gas.

[0017] The utility model discloses an improved water washing device for a sample gas pretreatment system at an outlet of a Lurgi coal gasifier. An exhaust hole is opened at the top of a water washing tank, and an exhaust head which is integrally formed with the water washing tank is arranged at the position of the exhaust hole and can be flange-connected to a safety valve. When the air pressure inside the water washing tank is too high or the air outlet pipeline is blocked, and the air pressure inside the water washing tank is higher than the rated air pressure of the safety valve, the safety valve is turned on and automatically releases the pressure, thereby ensuring the normal operation of the water washing device.

[0018] In summary, the utility model increases the contact area between the gas to be purified entering the water washing tank and the washing liquid by setting a gas separation component, thereby enhancing the water washing and filtering effect of the water washing device; by setting a liquid level warning component, the liquid level in the water washing tank can be observed, thereby avoiding the problem of high water content in the outlet gas caused by the high liquid level in the water washing tank; by setting a gas outlet component, the problem of high water content in the outlet gas is further avoided; and by setting an exhaust component, the normal operation of the water washing device can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 It is a front view of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a front view of the three-dimensional structure of the utility model;

[0022] Figure 3 This utility model Figure 2 A half-section view of

[0023] Figure 4 This utility model Figure 3 Bottom view of

[0024] Figure 5 It is a schematic diagram of the structure of the liquid level warning component of the utility model;

[0025] Figure 6 It is a half-section view of the air outlet box of the utility model.

[0026] In the figure: 1, washing tank; 2, liquid inlet assembly; 201, liquid inlet hole; 202, liquid inlet head; 203, liquid inlet connector; 3, air inlet assembly; 301, air inlet hole; 302, air inlet head; 303, air inlet connector; 4, air distributor assembly; 401, air distributor head; 402, two-way joint; 403, first connecting pipe; 404, annular air distributor pipe; 405, air distributor hole; 5, liquid level warning assembly; 501, through port; 502, square through pipe; 503, cover plate; 504, controller; 505, light Touch switch; 506, alarm; 507, float; 508, skateboard; 509, contact plate; 6, air outlet assembly; 601, air outlet hole; 602, air outlet head; 603, air outlet box; 604, air outlet connector; 605, baffle; 7, exhaust assembly; 701, exhaust hole; 702, exhaust head; 703, safety valve; 8, liquid outlet assembly; 801, liquid outlet hole; 802, liquid outlet head; 803, right-angle joint; 804, valve; 805, second connecting pipe; 806, liquid outlet connector. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0028] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their components and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0029] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0030] like Figure 1-Figure 6As shown, an improved water washing device for the sample gas pretreatment system at the outlet of the Lurgi gasifier is provided, the water washing device comprises a water washing tank 1, a liquid inlet hole 201 is provided at the center of the top of the water washing tank 1, a liquid inlet assembly 2 is provided at the position of the liquid inlet hole 201 on the water washing tank 1, an air inlet hole 301 is provided on the left side of the liquid inlet assembly 2 at the top of the water washing tank 1, an air inlet assembly 3 is provided at the position of the air inlet hole 301, an air separation assembly 4 is provided at the position of the air inlet hole 301 inside the water washing tank 1, a liquid level warning assembly 5 is provided on the rear side of the liquid inlet assembly 2, an air outlet assembly 6 is provided on the right side of the liquid inlet assembly 2, an exhaust assembly 7 is provided on the front side of the liquid inlet assembly 2, a liquid outlet is provided at the bottom of the water washing tank 1, and a liquid outlet assembly 8 is provided at the position of the liquid outlet.

[0031] Specifically, the liquid inlet component 2 includes a liquid inlet head 202 and a liquid inlet connector 203. The liquid inlet head 202 is located at the position of the liquid inlet hole 201. The liquid inlet head 202 is integrally formed with the water washing tank 1, and the liquid inlet head 202 is connected to the liquid inlet hole 201. The liquid inlet connector 203 is threadedly connected to the top of the liquid inlet head 202.

[0032] Through the above technical scheme, a liquid inlet head 202 integrally formed with the water washing tank 1 is arranged at the position of the liquid inlet hole 201 at the top of the water washing tank 1, which can be used for threaded connection of the liquid inlet connector 203, and the external liquid inlet pipe can be threadedly connected through the liquid inlet connector 203, wherein a control valve can be added between the liquid inlet pipe and the liquid inlet connector 203 to control the liquid inlet amount (not shown in the present utility model).

[0033] Specifically, the air intake assembly 3 includes an air intake head 302 and an air intake connector 303. The air intake head 302 is located at the air intake hole 301. The air intake head 302 is integrally formed with the water washing tank 1, and the air intake head 302 is connected to the air intake hole 301. The air intake connector 303 is threadedly connected to the top of the air intake head 302.

[0034] Through the above technical solution, the air inlet head 302 integrally formed with the washing tank 1 and arranged at the position of the air inlet hole 301 can be used to threadably connect the air inlet connector 303, and the external air inlet pipe can be threadably connected through the air inlet connector 303.

[0035] Specifically, the gas distribution component 4 includes a gas distribution head 401, a two-way joint 402, a first connecting pipe 403 and an annular gas distribution pipe 404. The gas distribution head 401 is located at the position of the air inlet hole 301 inside the water washing tank 1, and the gas distribution head 401 is integrally formed with the water washing tank 1. The first connecting pipe 403 is fixedly connected to the gas distribution head 401 away from the air inlet hole 301 through the two-way joint 402. The annular gas distribution pipe 404 is fixedly connected to the end of the first connecting pipe 403 away from the two-way joint 402. The end of the annular gas distribution pipe 404 away from the first connecting pipe 403 is sealed, and a plurality of gas distribution holes 405 that penetrate the inner cavity of the annular gas distribution pipe 404 are provided on the wall of the annular gas distribution pipe 404.

[0036] Through the above technical scheme, an air separation component 4 is set at the position of the air inlet hole 301 inside the water washing tank 1. By setting the air separation head 401, the first connecting pipe 403 can be connected through the connecting joint. The vertical line of the first connecting pipe 403 goes down below the liquid level inside the water washing tank 1, so that the annular air separation pipe 404 connected to the bottom of the first connecting pipe 403 can be below the liquid level inside the water washing tank 1. When the gas that needs to be washed and purified flows from the air inlet hole 301 into the annular air separation pipe 404, it can flow into the water washing tank 1 through the air separation hole 405 opened on the outside of the annular air separation pipe 404, thereby increasing the contact area between the gas that needs to be purified entering the water washing tank 1 and the washing liquid, thereby enhancing the water washing and filtering effect of the water washing device.

[0037] Specifically, the liquid level warning component 5 includes a through port 501, a square through pipe 502, a cover plate 503, a controller 504, a touch switch 505, an alarm 506, a float 507, a slide plate 508 and a contact plate 509. The through port 501 is opened at the top of the washing tank 1, the square through pipe 502 is arranged at the position of the through port 501 at the top of the washing tank 1, and the inner diameter of the square through pipe 502 is larger than the inner diameter of the through port 501, the slide plate 508 is slidably connected to the inside of the through port 501, the float 507 is fixedly connected to the bottom of the slide plate 508, and it is located inside the washing tank 1, and the contact plate 509 is fixedly connected to the bottom of the slide plate 508. 09 is fixedly connected to the top of the slide plate 508, the contact plate 509 is slidably connected in the inner cavity of the square tube 502, and its size matches the size of the inner cavity of the square tube 502, the cover plate 503 is fixedly connected to the top of the square tube 502, the touch switch 505 is arranged at the bottom of the cover plate 503, and it is located in the inner cavity of the square tube 502, the alarm 506 is arranged on the top of the cover plate 503, and the controller 504 is arranged on the side of the square tube 502, the alarm 506 is electrically connected to the touch switch 505, and the touch switch 505 is electrically connected to the controller 504.

[0038] Through the above technical scheme, a liquid level warning component 5 is set on the top of the water washing tank 1. When the liquid level in the water washing tank 1 rises, the float 507 rises with the rise of the liquid level. The rise of the float 507 can drive the slide plate 508 to slide upward in the opening 501, and further drive the resistance plate 509 to slide upward in the square through pipe 502. After the resistance plate 509 rises to the position of the touch switch 505, it will abut and connect the touch switch 505, and then the alarm starts to alarm, and then the liquid level in the water washing tank 1 can be observed, thereby avoiding the problem of high water content in the outlet gas caused by the excessively high liquid level in the water washing tank 1.

[0039] Specifically, the air outlet component 6 includes an air outlet hole 601, an air outlet head 602, an air outlet box 603 and an air outlet connecting head 604. The air outlet hole 601 is opened at the top of the water washing tank 1, and the air outlet head 602 is located at the position of the air outlet hole 601, and the air outlet head 602 is integrally formed with the water washing tank 1. The air outlet box 603 is threadedly connected to the air outlet head 602, and the top and bottom of the air outlet box 603 are symmetrically funnel-shaped. A group of downward-inclined baffles 605 are provided in the air outlet box 603, and the air outlet connecting head 604 is threadedly connected to the top of the air outlet box 603.

[0040] Through the above technical scheme, an air outlet head 602 is set at the position of the air outlet hole 601, which can be used to threadedly connect the air outlet box 603. The top and bottom of the air outlet box 603 are symmetrical funnel-shaped, and a group of downward-inclined baffles 605 are provided inside. When the purified sample gas passes through the air outlet box 603, it flows out in an S shape under the action of the baffles 605. A small amount of water vapor inside can be blocked by the baffles 605, which further avoids the problem of high water content in the outlet gas.

[0041] Specifically, the exhaust component 7 includes an exhaust hole 701, an exhaust head 702 and a safety valve 703. The exhaust hole 701 is opened at the top of the water washing tank 1, the exhaust head 702 is located at the exhaust hole 701, and the exhaust head 702 is integrally formed with the water washing tank 1. The safety valve 703 is flange-connected to the exhaust head 702.

[0042] Through the above technical scheme, an exhaust hole 701 is opened on the top of the water washing tank 1, and an exhaust head 702 which is integrally formed with the water washing tank 1 is arranged at the position of the exhaust hole 701 and can be flange-connected to a safety valve 703. Through the flange-connected safety valve 703, when the air pressure inside the water washing tank 1 is too high or the air outlet pipeline is blocked, and the air pressure inside the water washing tank 1 is higher than the rated air pressure of the safety valve 703, the safety valve 703 is turned on to automatically release the pressure, thereby ensuring the normal operation of the water washing device.

[0043] Specifically, the liquid outlet component 8 includes a liquid outlet head 802, a right-angle joint 803, a valve 804, a second connecting pipe 805 and a liquid outlet connector 806. The liquid outlet head 802 is arranged at the position of the liquid outlet hole 801, and it is integrally formed with the washing tank 1. The right-angle joint 803 is fixedly connected to the liquid outlet head 802, the valve 804 is fixedly connected to the end of the right-angle joint 803 away from the liquid outlet head 802, and the liquid outlet connector 806 is fixedly connected to the valve 804 through the second connecting pipe 805.

[0044] Through the above technical scheme, a liquid outlet hole 801 is opened at the bottom of the washing tank 1, and a liquid outlet head 802 integrally formed with the washing tank 1 is arranged at the position of the liquid outlet hole 801, which can be used to connect the right-angle joint 803, and the valve 804 connected between the right-angle joint 803 and the second connecting pipe 805 can be used to control the conduction and closing of the liquid outlet component 8, and the liquid outlet connector 806 connected to the second connecting pipe 805 can be used to connect an external liquid outlet pipe; when the liquid level in the washing tank 1 is too high, the valve 804 is opened, the liquid outlet component 8 is turned on, and the liquid in the washing tank 1 can flow out of the washing tank 1, and the alarm of the liquid level warning component can be lifted at this time; when the liquid inside the washing tank 1 contains more impurities and cannot be used for washing and filtering, the valve 804 can also be opened to make the liquid outlet component 8 turned on to discharge the liquid in the washing tank 1, so as to facilitate the replacement of new washing liquid.

[0045] The working principle of the improved water washing device used in the Lurgi coal gasifier outlet sample gas pretreatment system is as follows:

[0046] The gas containing impurities enters from the air inlet connector 303, flows through the air inlet head 302 and the air inlet hole 301 in turn, enters the air distributor 401, then flows through the two-way connector 402, the first connecting pipe 403 and the annular air distributor 404, and finally flows into the washing liquid in the washing tank 1 through the multiple air distributor holes 405 distributed on the outer wall of the annular air distributor 404 for water washing; the gas after water washing flows from the air outlet hole 601 through the air outlet head 602, and then flows into the air outlet box 603, and under the action of the baffle 605 in the air outlet box 603, it flows out of the air outlet box 603 in an S shape, completing the entire water washing process.

[0047] Furthermore, when the air pressure inside the water washing tank 1 is too high or the air outlet pipe is blocked, and the air pressure inside the water washing tank 1 is higher than the rated air pressure of the safety valve 703, the safety valve 703 is turned on to automatically release the pressure, thereby ensuring the normal operation of the water washing device;

[0048] Furthermore, when the washing liquid is injected into the washing tank 1, when the washing liquid rises to a certain height, the top liquid surface contacts the float 507, and the float 507 rises with the rise of the liquid surface. The rise of the float 507 can drive the slide plate 508 to slide upward in the opening 501, and further drive the resistance plate 509 to slide upward in the square through tube 502. After the resistance plate 509 rises to the position of the touch switch 505, it will contact and connect the touch switch 505, and then the alarm starts to alarm, and then the liquid level in the washing tank 1 can be observed, thereby avoiding the problem of high water content in the outlet gas caused by the excessively high liquid level in the washing tank 1.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An improved water washing device for the sample gas pretreatment system at the outlet of Lurgi gasifier, characterized in that: The water washing device comprises a water washing tank (1), wherein a liquid inlet hole (201) is provided at the center of the top of the water washing tank (1), a liquid inlet assembly (2) is provided at the position of the liquid inlet hole (201) on the water washing tank (1), an air inlet hole (301) is provided at the left side of the liquid inlet assembly (2) at the top of the water washing tank (1), an air inlet assembly (3) is provided at the position of the air inlet hole (301), an air separation assembly (4) is provided at the position of the air inlet hole (301) inside the water washing tank (1), a liquid level warning assembly (5) is provided at the rear side of the liquid inlet assembly (2), an air outlet assembly (6) is provided at the right side of the liquid inlet assembly (2), an air exhaust assembly (7) is provided at the front side of the liquid inlet assembly (2), a liquid outlet hole (801) is provided at the bottom of the water washing tank (1), and a liquid outlet assembly (8) is provided at the position of the liquid outlet hole (801).

2. The water washing device according to claim 1, characterized in that: The liquid inlet assembly (2) comprises a liquid inlet head (202) and a liquid inlet connector (203); the liquid inlet head (202) is located at the position of the liquid inlet hole (201); the liquid inlet head (202) and the water washing tank (1) are integrally formed, and the liquid inlet head (202) is connected to the liquid inlet hole (201); the liquid inlet connector (203) is threadedly connected to the top of the liquid inlet head (202).

3. The water washing device according to claim 1, characterized in that: The air intake assembly (3) comprises an air intake head (302) and an air intake connector (303); the air intake head (302) is located at the position of the air intake hole (301); the air intake head (302) and the water washing tank (1) are integrally formed, and the air intake head (302) is connected to the air intake hole (301); the air intake connector (303) is threadedly connected to the top of the air intake head (302).

4. The water washing device according to claim 1, characterized in that: The gas separation component (4) comprises a gas separation head (401), a two-way joint (402), a first connecting pipe (403) and an annular gas separation pipe (404); the gas separation head (401) is located at the position of the air inlet (301) inside the water washing tank (1), and the gas separation head (401) and the water washing tank (1) are integrally formed; the first connecting pipe (403) is fixedly connected to the gas separation head (401) away from the air inlet (301) through the two-way joint (402); the annular gas separation pipe (404) is fixedly connected to one end of the first connecting pipe (403) away from the two-way joint (402); one end of the annular gas separation pipe (404) away from the first connecting pipe (403) is sealed; and a plurality of gas separation holes (405) penetrating the inner cavity of the annular gas separation pipe (404) are provided on the wall of the annular gas separation pipe (404).

5. The water washing device according to claim 1, characterized in that: The liquid level warning component (5) comprises a through-port (501), a square through-port (502), a cover plate (503), a controller (504), a touch switch (505), an alarm (506), a float (507), a slide plate (508) and a contact plate (509). The through-port (501) is opened at the top of the washing tank (1). The square through-port (502) is arranged at the position of the through-port (501) at the top of the washing tank (1). The inner diameter of the square through-port (502) is larger than the inner diameter of the through-port (501). The slide plate (508) is slidably connected to the inside of the through-port (501). The float (507) is fixedly connected to the bottom of the slide plate (508) and is located inside the washing tank (1). The contact plate (509) is fixedly connected to the top of the slide plate (508), the contact plate (509) is slidably connected in the inner cavity of the square tube (502), and its size is consistent with the size of the inner cavity of the square tube (502), the cover plate (503) is fixedly connected to the top of the square tube (502), the touch switch (505) is arranged at the bottom of the cover plate (503), and it is located in the inner cavity of the square tube (502), the alarm (506) is arranged on the top of the cover plate (503), the controller (504) is arranged on the side of the square tube (502), the alarm (506) is electrically connected to the touch switch (505), and the touch switch (505) is electrically connected to the controller (504).

6. The water washing device according to claim 1, characterized in that: The air outlet component (6) comprises an air outlet hole (601), an air outlet head (602), an air outlet box (603) and an air outlet connector (604); the air outlet hole (601) is opened at the top of the water washing tank (1); the air outlet head (602) is located at the position of the air outlet hole (601), and the air outlet head (602) and the water washing tank (1) are integrally formed; the air outlet box (603) is threadedly connected to the air outlet head (602); the top and bottom of the air outlet box (603) are symmetrically funnel-shaped; a group of downwardly inclined baffles (605) are provided in the air outlet box (603); and the air outlet connector (604) is threadedly connected to the top of the air outlet box (603).

7. The water washing device according to claim 1, characterized in that: The exhaust assembly (7) comprises an exhaust hole (701), an exhaust head (702) and a safety valve (703); the exhaust hole (701) is provided at the top of the water washing tank (1); the exhaust head (702) is located at the position of the exhaust hole (701); the exhaust head (702) and the water washing tank (1) are integrally formed; and the safety valve (703) is flange-connected to the exhaust head (702).

8. The water washing device according to claim 1, characterized in that: The liquid outlet assembly (8) comprises a liquid outlet head (802), a right-angle joint (803), a valve (804), a second connecting pipe (805) and a liquid outlet connecting head (806); the liquid outlet head (802) is arranged at the position of the liquid outlet hole (801) and is integrally formed with the washing tank (1); the right-angle joint (803) is fixedly connected to the liquid outlet head (802); the valve (804) is fixedly connected to one end of the right-angle joint (803) away from the liquid outlet head (802); and the liquid outlet connecting head (806) is fixedly connected to the valve (804) via the second connecting pipe (805).

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