A mud filtration loss automatic measuring device

Abstract

The invention relates to an automatic mud filtration loss measuring device. The automatic mud filtration loss measuring device adopts a mud injection system to inject a quantitative amount of mud into a tank body, adopts a mud test system to measure the amount of filtrate in the tank body, adopts a cleaning system to clean the tank body and the mud test system, adopts a quantitative system electrically connected to the mud injection system, the mud test system and the cleaning system to determine the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud test system and the amount of clean water injected into the cleaning system, and then automatically completes the measurement of the mud filtration loss, so as to solve the problems of cumbersome manual measurement procedures and low measurement accuracy in the prior art.

Description

Technical Field

[0001] The invention relates to the field of drilling (exploration) mud performance measuring instruments and equipment, in particular to an automatic mud filtration loss measuring device. Background Art

[0002] Mud is the "blood" of drilling and plays a very important role in the drilling process. In the current drilling (exploration) process, the traditional method of testing mud performance parameters is to use manual operation methods. In the process of measuring mud filtration loss, manual work is performed to install the tank, install filter paper, pump air into the tank mud and pressurize it, and visually read the filtration loss value. After the measurement is completed, manual work is required to disassemble and clean the measuring device. The entire filtration loss measurement process has the disadvantages of cumbersome measurement procedures, large errors in manual visual readings, low work efficiency, and easy corrosion of hands when manually touching the mud.

[0003] Therefore, providing an automatic mud filtration loss measuring device or system that can reduce cumbersome procedures and improve measurement accuracy is a technical problem that needs to be solved urgently in the field. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic measuring device for mud filtration loss, so as to solve the problems of complicated manual measurement process and low measurement accuracy in the prior art.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A mud filtration loss automatic measuring device, comprising:

[0007] A tank for storing slurry;

[0008] A mud injection system, used for injecting a certain amount of mud into the tank;

[0009] a slurry testing system for measuring the amount of filtrate in the tank;

[0010] A cleaning system, used for cleaning the tank and the mud testing system;

[0011] The quantitative system is electrically connected to the mud injection system, the mud testing system and the cleaning system respectively, and is used to determine the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud testing system, and the amount of clean water injected into the cleaning system.

[0012] Preferably, the slurry injection system comprises:

[0013] A mud injection port, connected to the first end pipeline of the tank body, for injecting mud;

[0014] A liquid level electric valve, which is arranged on the connecting pipeline between the first end and the mud injection port and is electrically connected to the quantitative system, and is used to open or close the connecting pipeline between the first end and the mud injection port according to the mud injection signal sent by the quantitative system;

[0015] A filter assembly is disposed inside the tank body and is at a specific distance from the second end of the tank body, and is used to filter the mud;

[0016] The moving component is mechanically connected to the filter component and electrically connected to the quantitative system, and is used to move the filter component according to the movement signal of the quantitative system.

[0017] Preferably, the filter assembly comprises: a filter screen and a filter screen support plate;

[0018] The filter screen supporting plate is used for supporting the filter screen.

[0019] Preferably, the filter screen is made of polyvinyl fluoride fiber; and the filter screen support plate is made of stainless steel.

[0020] Preferably, the moving assembly comprises: a linear motor and a moving rod;

[0021] One end of the moving rod is mechanically connected to the linear motor, and the other end of the moving rod is mechanically connected to the filter assembly.

[0022] Preferably, the mud testing system comprises:

[0023] a measuring cylinder connected to the second end of the tank body through a filtrate tube;

[0024] a photosensor, electrically connected to the quantitative system, for measuring the amount of filtrate in the measuring cylinder;

[0025] The measuring range of the photosensor covers the measuring range of the measuring cylinder.

[0026] Preferably, the mud testing system further comprises: a gas tank, a pressure reducing valve, an air inlet solenoid valve, an air outlet solenoid valve and an air outlet;

[0027] The gas tank is connected to the tank body pipeline; the pressure reducing valve and the air inlet solenoid valve are sequentially arranged on the connecting pipeline between the gas tank and the tank body; the gas outlet is connected to the connecting pipeline between the gas tank and the tank body through an exhaust pipe; the air outlet solenoid valve is arranged on the exhaust pipe;

[0028] The pressure reducing valve, the air inlet solenoid valve and the air outlet solenoid valve are all electrically connected to the quantitative system.

[0029] Preferably, it also includes:

[0030] A slurry discharge port, connected to the measuring cylinder pipeline, for discharging slurry, filtrate and clean water;

[0031] The electric ball valve is arranged on the connecting pipeline between the slurry discharge port and the measuring cylinder and is electrically connected to the quantitative system, and is used for opening or closing the connecting pipeline between the slurry discharge port and the measuring cylinder according to the discharge signal of the quantitative system.

[0032] Preferably, the cleaning system comprises:

[0033] A high-pressure clean water inlet, used to inject clean water into the tank;

[0034] A nozzle is arranged inside the tank body and connected to the high-pressure clean water inlet pipeline;

[0035] A water inlet solenoid valve is provided on the connecting pipeline between the nozzle and the high-pressure clean water inlet and is electrically connected to the quantitative system, and is used to open or close the connecting pipeline between the tank body and the high-pressure clean water inlet according to the clean water injection signal in the quantitative system;

[0036] The ultrasonic sensor is arranged on the tank body and is used to generate micro-vibration to make the mud skin in the tank body assembly fall off.

[0037] Preferably, the quantitative system comprises: a host computer and a display screen;

[0038] The host computer is electrically connected to the display screen, the mud injection system, the mud testing system and the cleaning system respectively; the host computer is used to generate a mud signal injected into the mud injection system, a filtrate signal injected into the mud testing system, a clean water signal injected into the cleaning system and a discharge signal respectively;

[0039] The display screen is used to display the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud testing system, the amount of clean water injected into the cleaning system, and the discharge amount of mud, the discharge amount of filtrate or the discharge amount of clean water.

[0040] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0041] The automatic measuring device for mud filtration loss provided by the present invention adopts a mud injection system to inject a quantitative amount of mud into a tank body, adopts a mud testing system to measure the amount of filtrate in the tank body, adopts a cleaning system to clean the tank body and the mud testing system, and adopts a quantitative system electrically connected to the mud injection system, the mud testing system and the cleaning system to determine the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud testing system and the amount of clean water injected into the cleaning system, thereby automatically completing the measurement of the mud filtration loss, so as to solve the problems of complicated manual measurement procedures and low measurement accuracy existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the present embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 A schematic diagram of the structure of the automatic measuring device for mud filtration loss provided by the present invention;

[0044] Figure 2 A schematic structural diagram of a filter support plate provided in an embodiment of the present invention.

[0045] Explanation of symbols:

[0046] Figure 1 In: 1-liquid level electric valve, 2-linear motor, 3-moving rod, 4-upper tank body, 5-lower tank body, 6-filter, 7-filter support plate, 8-gas tank, 9-pressure reducing valve, 10-inlet solenoid valve, 11-exhaust solenoid valve, 12-filtrate tube, 13-dirt baffle, 14-measuring cylinder, 15-photosensor, 16-electric ball valve, 17-ultrasonic sensor, 18-water inlet solenoid valve, 19-nozzle, 20-host computer, 21-display screen.

[0047] Figure 2 Middle: A1-steel support plate, A2-steel filter screen, A3-pressing ring, A4-elastic retaining ring, 6-filter screen. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in this embodiment of the present invention to clearly and completely describe the technical solution in this embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] The purpose of the present invention is to provide an automatic measuring device for mud filtration loss, so as to solve the problems of complicated manual measurement process and low measurement accuracy in the prior art.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] A mud filtration loss automatic measuring device comprises: a tank body, a mud injection system, a mud testing system, a cleaning system and a quantitative system.

[0052] The tank is used to store mud. The mud injection system is used to inject a certain amount of mud into the tank. The mud test system is used to measure the amount of filtrate in the tank. The cleaning system is used to clean the tank and the mud test system. The quantitative system is electrically connected to the mud injection system, the mud test system and the cleaning system, respectively, and is used to determine the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud test system, and the amount of clean water injected into the cleaning system.

[0053] Figure 1 The schematic diagram of the structure of the automatic measuring device for mud filtration loss provided by the present invention is as follows: Figure 1 As shown, the above-mentioned mud injection system includes: a mud injection port, a liquid level electric valve 1, a filtering component and a moving component.

[0054] The mud injection port is connected to the first end pipeline of the tank body and is used for injecting mud.

[0055] The liquid level electric valve 1 is arranged on the connecting pipeline between the first end and the mud injection port and is electrically connected to the quantitative system for opening or closing the connecting pipeline between the first end and the mud injection port according to the mud injection signal sent by the quantitative system.

[0056] The filter assembly is arranged inside the tank body and is at a specific distance from the second end of the tank body for filtering mud, wherein the specific distance is determined according to the actual amount of mud in the tank body.

[0057] The moving component is mechanically connected to the filtering component and electrically connected to the quantitative system, and is used for moving the filtering component according to a moving signal of the quantitative system.

[0058] Among them, Figure 1 As shown, the filter assembly comprises: a filter screen 6 and a filter screen support plate 7. The filter screen support plate 7 is used to support the filter screen 6.

[0059] The moving assembly includes: a linear motor 2 and a moving rod 3.

[0060] One end of the moving rod 3 is mechanically connected to the linear motor 2 , and the other end of the moving rod 3 is mechanically connected to the filter assembly.

[0061] Furthermore, in order to further improve the technical solution provided by the present invention, the specific structure of the filter support plate 7 in the above-mentioned filter assembly is as follows: Figure 1 Middle A area and Figure 2 As shown, it mainly includes: a steel support plate A1, a steel filter screen A2, a pressure ring A3 and an elastic retaining ring A4. The outer edge of the support plate A1 is a 45° inclined surface, which matches the cone of the lower tank body 5. The upper surface of the support plate A1 is a 176° concave surface. A 40-mesh filter screen, a filter screen 6, a pressure ring A3 and an elastic retaining ring A4 are placed on the concave surface of the support plate A1 in sequence. The center of the concave surface of the support plate is connected to the moving rod 33. The pressure ring A3 and the elastic retaining ring A4 are used to fix the steel filter screen A2 and the filter screen 6.

[0062] like Figure 1 As shown, the mud testing system comprises: a measuring cylinder 14, a light sensor 15, a gas tank 8, a pressure reducing valve 9, an air inlet solenoid valve 10, an air outlet solenoid valve 11 and an air outlet.

[0063] The measuring cylinder 14 is connected to the second end of the tank body through a filtrate tube. The photosensitive device 15 is electrically connected to the quantitative system and is used to measure the amount of filtrate in the measuring cylinder 14. The measuring range of the photosensitive device 15 covers the measuring range of the measuring cylinder 14.

[0064] The gas tank 8 is connected to the tank body pipeline. The pressure reducing valve 9 and the air inlet solenoid valve 10 are sequentially arranged on the connecting pipeline between the gas tank 8 and the tank body. The gas outlet is connected to the connecting pipeline between the gas tank 8 and the tank body through an exhaust pipe. The air outlet solenoid valve 11 is arranged on the exhaust pipe.

[0065] The pressure reducing valve 9, the air inlet solenoid valve 10 and the air outlet solenoid valve 11 are all electrically connected to the quantitative system.

[0066] In addition, if Figure 1 As shown, the automatic measuring device for mud filtration loss provided by the present invention also includes: a slurry discharge port for discharging mud, filtrate and clean water, and an electric ball valve 16 for opening or closing the connecting pipeline between the slurry discharge port and the measuring cylinder 14 according to the discharge signal of the quantitative system.

[0067] The slurry discharge port is connected to the pipeline of the measuring cylinder 14. The electric ball valve 16 is arranged on the connecting pipeline between the slurry discharge port and the measuring cylinder 14, and is electrically connected to the quantitative system.

[0068] Furthermore, the cleaning system includes: a high-pressure clean water inlet, a nozzle 19 , a water inlet solenoid valve 18 and an ultrasonic sensor 17 .

[0069] The high-pressure clean water inlet is used to inject clean water into the tank. The nozzle 19 is arranged inside the tank and connected to the high-pressure clean water inlet pipeline. The water inlet solenoid valve 18 is arranged on the connecting pipeline between the nozzle 19 and the high-pressure clean water inlet and is electrically connected to the quantitative system, and is used to open or close the connecting pipeline between the tank and the high-pressure clean water inlet according to the clean water injection signal in the quantitative system.

[0070] The ultrasonic sensor 17 is arranged on the tank body to generate micro vibrations to make the mud skin in the tank body fall off for easy flushing.

[0071] In order to facilitate control and display, the quantitative system preferably includes: a host computer 20 and a display screen 21.

[0072] The host computer 20 is electrically connected to the display screen 21, the mud injection system, the mud test system and the cleaning system. The host computer 20 is used to generate mud signals injected into the mud injection system, filtrate signals injected into the mud test system, clean water signals injected into the cleaning system and discharge signals.

[0073] The display screen 21 is used to display the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud testing system, the amount of clean water injected into the cleaning system, and the discharge amount of mud, the discharge amount of filtrate or the discharge amount of clean water.

[0074] A specific implementation example is provided below to further illustrate the solution of the present invention. The specific installation positions of the components are given in the specific implementation example of the present invention. However, in actual application, the solution of the present invention is also applicable to other installation forms of the components. Moreover, in this embodiment, the tank body mentioned in the above solution of the present invention can be divided into an upper tank body and a lower tank body for the convenience of description.

[0075] The mud injection system includes a liquid level electric valve 1, a linear motor 2, a moving rod 3, an upper tank body 4, a lower tank body 5, a filter screen 6, and a filter screen support plate 7. The liquid level electric valve 1 is connected to the upper tank body 4, the linear motor 2 is installed on the upper end of the upper tank body 4, and is connected to the moving rod 3 at the bottom, the moving rod 3 is connected to the filter screen 6 and the filter screen support plate 7, and the upper tank body 4 and the lower tank body 5 are connected by threads.

[0076] The mud test system includes a gas tank 8, a pressure reducing valve 9, a solenoid valve 10, a solenoid valve 11, a filtrate tube 12, a dirt baffle 13, a measuring cylinder 14 and a light sensor 15. The gas tank 8 is hung outside the measuring box, and the gas tank 8 is connected to the pressure reducing valve 9, the air inlet solenoid valve 10, the air outlet solenoid valve 11 and the air pipeline, the air supply pipeline is connected to the upper end of the upper tank body 4, the upper part of the filtrate tube 12 is connected to the bottom of the filter support plate 7, and the lower part is connected to the measuring cylinder 14, the dirt baffle 13 is installed in the middle of the filtrate tube, and the light sensor is installed on one side of the scale of the measuring cylinder 14.

[0077] The cleaning system includes a water inlet solenoid valve 18, a nozzle 19, a slurry discharge electric ball valve 16, and an ultrasonic sensor 17. One end of the water inlet solenoid valve 18 is connected to the high-pressure clean water inlet, and the other end is connected to the nozzle 19. The nozzle 19 is installed in the middle position inside the upper tank body 4. The upper end of the electric ball valve 16 is connected to the measuring cylinder 14, and the lower end is connected to the slurry discharge outlet pipeline. The ultrasonic sensor 17 is installed on the outer side of the upper part of the upper tank body 4.

[0078] The quantitative system includes a host computer 20 and a display screen 21. The host computer 20 is connected to the linear motor 2, the photosensitive element 15, the ultrasonic sensor 17, and each control valve (the liquid level electric valve 1, the pressure reducing valve 9, the air inlet solenoid valve 10, the air outlet solenoid valve 11, the electric ball valve 16, and the water inlet solenoid valve 18), and the display screen 21 is electrically connected to the host computer 20.

[0079] A funnel-shaped hole is drilled at a position offset 15 mm from the center of the concave surface of the steel support plate A1, and the upper diameter of the funnel is 8 mm. The lower part of the funnel-shaped hole is connected to a filtrate pipe 12, and the inner diameter of the filtrate pipe opening is 4 mm.

[0080] In this embodiment, the filter screen 6 is made of polyvinyl fluoride fiber, and its performance parameters are consistent with those of conventional filter paper for measurement, and it can be used multiple times without replacement.

[0081] In this embodiment, the linear motor 2 is connected to the moving rod 3 and can adjust the up and down strokes as needed. Before the slurry is poured into the tank for measurement, the moving rod 3 drives the filter support plate 7 to move downward to the bottom dead point position to play a sealing role. When the upper and lower tank bodies (4, 5) and the filter support plate 7 and the filter 6 are flushed, the moving rod moves upward to the upper limit position, at which time a gap is generated on the conical surface, the slurry in the tank is discharged, and the flushing procedure begins.

[0082] In this embodiment, the liquid level electric valve 1 is automatically controlled to allow a certain amount of mud (240 mL as specified in the specification) to enter the tank body.

[0083] In this embodiment, the measuring cylinder 14 is made of tempered glass, has a height of 180 mm, an inner diameter of 16.6 mm, and a scale division of 0.5 mL.

[0084] In this embodiment, the photosensitive device 15 is a micro camera, and after capturing the image, the host computer performs signal processing to distinguish the filtrate level scale value. Since the image processing technology adopts the existing conventional technical means, it will not be described again.

[0085] In this embodiment, when the ultrasonic sensor 17 flushes the measuring device with clean water, it causes the tank body to generate high-frequency microwave vibrations, which is beneficial to the removal of mud skin in the cleaning area of ​​the tank.

[0086] In this embodiment, when the steel filter A2 and the filter 6 need to be replaced, the filter support plate 7 is placed in the upper limit position (determined according to actual needs), the lower tank body 5 is removed, and then the connection between the movable rod 3 and the filter support plate 7 is removed, and the elastic gasket A4 and the pressure ring A3 are removed to replace the filter 6, and then the filter is assembled and restored in sequence.

[0087] In this embodiment, the working process of the automatic measuring device for mud filtration loss is as follows:

[0088] Turn on the power of the host computer → turn on the display screen → press the automatic measurement command → enter the measurement state → open the liquid level electric valve 1 → pour 240mL of mud into the tank body → close the liquid level electric valve 1 → open the pressure reducing valve 9 and the air inlet solenoid valve 10 → supply air into the tank → maintain the air pressure at 0.69MPa → start timing for 30 minutes → the filtrate flows (drops) into the measuring cylinder 14 → turn on the photo sensor 15 to measure the filtrate volume → the host computer 20 calculates the filtration loss value (delay 30s) → close the pressure reducing valve 9 and the air inlet solenoid valve 10, and the photo sensor 15 → open the air outlet solenoid valve 11 → open the electric ball valve 16 → start the linear motor 2 → move the moving rod 3 to move the filter assembly to the upper limit position → open the water inlet solenoid valve 18 → supply high-pressure water to the nozzle 19 → turn on the ultrasonic sensor 17 → delay for 5 minutes → close the water inlet solenoid valve 18, the electric ball valve 16, and close the ultrasonic sensor 17 → start the linear motor 2 → move the moving rod 3 to move the filter assembly to the lower limit position → the display screen 21 shows that the measurement is over.

[0089] In this embodiment, the automatic measuring device for mud filtration loss can be powered by 220V, and after voltage transformation, the device uses a safe voltage of 24V.

[0090] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0091] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An automatic measuring device for mud filtration loss, characterized in that: include: A tank body, used for storing mud; the tank body is divided into an upper tank body and a lower tank body; A mud injection system, used for injecting a certain amount of mud into the tank; a slurry testing system for measuring the amount of filtrate in the tank; A cleaning system, used for cleaning the tank and the mud testing system; a quantitative system, electrically connected to the mud injection system, the mud testing system and the cleaning system, respectively, for determining the amount of mud injected into the mud injection system, for determining the amount of filtrate injected into the mud testing system, and for determining the amount of clean water injected into the cleaning system; The mud injection system comprises: A mud injection port, connected to the first end pipeline of the tank body, for injecting mud; A liquid level electric valve, which is arranged on the connecting pipeline between the first end and the mud injection port and is electrically connected to the quantitative system, and is used to open or close the connecting pipeline between the first end and the mud injection port according to the mud injection signal sent by the quantitative system; A filter assembly is disposed inside the tank body and is at a specific distance from the second end of the tank body, and is used to filter the mud; A moving component, mechanically connected to the filter component and electrically connected to the quantitative system, for moving the filter component according to a moving signal of the quantitative system; The filter assembly comprises: a filter screen and a filter screen support plate; The filter screen support plate is used to support the filter screen; The filter support plate comprises: a steel support plate, a steel filter, a pressure ring and an elastic retaining ring; the outer edge of the steel support plate is a 45° inclined surface, which matches the cone of the lower tank body, the upper surface of the steel support plate is a 176° concave surface, and a 40-mesh filter, a filter, a pressure ring and an elastic retaining ring are placed on the concave surface of the steel support plate in sequence, and the pressure ring and the elastic retaining ring are used to fix the steel filter and the filter; a funnel-shaped hole is drilled at a position offset by 15 mm from the center of the concave surface of the steel support plate, and the lower part of the funnel-shaped hole is connected to the filtrate pipe; The mud testing system comprises: a measuring cylinder connected to the second end of the tank body through a filtrate tube; A photo sensor is electrically connected to the quantitative system and is used to measure the amount of filtrate in the measuring cylinder. The photo sensor is a miniature camera, and after the image is captured, the host computer performs signal processing to distinguish the scale value of the filtrate surface. The measuring range of the photosensor covers the measuring range of the measuring cylinder.

2. The automatic measuring device for mud loss according to claim 1 is characterized in that: The material of the filter screen is polyvinyl fluoride fiber; the material of the filter screen support plate is stainless steel.

3. The automatic measuring device for mud filtration loss according to claim 1 is characterized in that: The moving assembly comprises: a linear motor and a moving rod; One end of the moving rod is mechanically connected to the linear motor, and the other end of the moving rod is mechanically connected to the filter assembly.

4. The automatic measuring device for mud loss according to claim 1 is characterized in that: The mud testing system also includes: a gas tank, a pressure reducing valve, an air inlet solenoid valve, an air outlet solenoid valve and an air outlet; The gas tank is connected to the tank body pipeline; the pressure reducing valve and the air inlet solenoid valve are sequentially arranged on the connecting pipeline between the gas tank and the tank body; the gas outlet is connected to the connecting pipeline between the gas tank and the tank body through an exhaust pipe; the air outlet solenoid valve is arranged on the exhaust pipe; The pressure reducing valve, the air inlet solenoid valve and the air outlet solenoid valve are all electrically connected to the quantitative system.

5. The automatic measuring device for mud filtration loss according to claim 1 is characterized in that: Also includes: A slurry discharge port, connected to the measuring cylinder pipeline, for discharging slurry, filtrate and clean water; The electric ball valve is arranged on the connecting pipeline between the slurry discharge port and the measuring cylinder and is electrically connected to the quantitative system, and is used for opening or closing the connecting pipeline between the slurry discharge port and the measuring cylinder according to the discharge signal of the quantitative system.

6. The automatic measuring device for mud filtration loss according to claim 1 is characterized in that: The cleaning system comprises: A high-pressure clean water inlet, used to inject clean water into the tank; A nozzle is arranged inside the tank body and connected to the high-pressure clean water inlet pipeline; A water inlet solenoid valve is provided on the connecting pipeline between the nozzle and the high-pressure clean water inlet and is electrically connected to the quantitative system, and is used to open or close the connecting pipeline between the tank body and the high-pressure clean water inlet according to the clean water injection signal in the quantitative system; The ultrasonic sensor is arranged on the tank body and is used to generate micro-vibration to make the mud skin in the tank body assembly fall off.

7. The automatic measuring device for mud filtration loss according to claim 1 is characterized in that: The quantitative system comprises: a host computer and a display screen; The host computer is electrically connected to the display screen, the mud injection system, the mud testing system and the cleaning system respectively; the host computer is used to generate a mud signal injected into the mud injection system, a filtrate signal injected into the mud testing system, a clean water signal injected into the cleaning system and a discharge signal respectively; The display screen is used to display the amount of mud injected into the mud injection system, the amount of filtrate injected into the mud testing system, the amount of clean water injected into the cleaning system, and the discharge amount of mud, the discharge amount of filtrate or the discharge amount of clean water.

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