Detection and collection integrated double-screw pump anti-leakage tool and monitoring method

Abstract

The invention provides a double-screw pump anti-leakage tool integrating detection and collection and a leakage rate monitoring method. The double-screw pump anti-leakage tool integrating detection and collection comprises a liquid collecting cylinder, a storage assembly and a detection assembly. The top of the liquid collecting cylinder is connected with a liquid inlet pipe, the bottom of the liquid collecting cylinder is connected with a liquid outlet pipe, the inlet end of the liquid inlet pipe is communicated with the double-screw pump, and a switch valve is arranged in the liquid outlet pipe; the outlet end of the liquid outlet pipe is communicated with the storage assembly; the detection assembly comprises a processor and a sensing part, and the processor is arranged on the outer wall of the liquid collecting cylinder and is in communication connection with the double-screw pump, the sensing part and the switching valve. According to the double-screw pump anti-leakage tool integrating detection and collection, leaked media are collected through the liquid collecting cylinder, the leaked media can be further stored in the storage assembly after the leaked media are collected to a certain volume, zero medium discharge is achieved, and the working environment is prevented from being polluted.

Description

Technical Field

[0001] The invention belongs to the technical field of screw pump seals, and in particular relates to a twin-screw pump anti-leakage tooling and a monitoring method integrating detection and collection. Background Art

[0002] Twin-screw pumps are a type of positive displacement pumps that are widely used in various industrial fields, including petroleum, chemical, shipbuilding, food and other industries, and play an important role in the industrial pump industry. When twin-screw pumps are used to handle toxic, harmful or precious liquids, their sealing performance directly affects production safety and environmental protection indicators. Twin-screw pumps generally have four sets of mechanical seals to isolate the pump chamber from the external environment and prevent the pumped medium from leaking out of the pump chamber; the mechanical seal is a dynamic seal, and its main seal is a stationary static ring installed on the pump bearing seat and a dynamic ring installed on the drive shaft and rotating with the drive shaft. They rely on spring force to fit tightly to prevent the medium in the pump chamber from leaking out; in order to ensure that the mechanical seal can operate reliably for a long time, a certain amount of pumped medium is required between the dynamic and static rings (sealing surfaces) to form a stable liquid film to prevent the leakage of the pump chamber medium, and at the same time, lubricate and cool the sealing surface; during normal operation, a small amount of pumped medium leaks into the dynamic and static rings of the mechanical seal, which is necessary to ensure the sealing performance of the mechanical seal and improve its service life. This leakage will evaporate into the surrounding atmosphere due to the high temperature of the sealing surface.

[0003] Although mechanical seals are carefully designed and precisely manufactured, they may leak from time to time during use. Once liquid leaks, it will pollute the surrounding area and affect the use of twin-screw pumps. In order to ensure production safety and environmental protection, twin-screw pumps require frequent manual inspections, which increases the labor intensity of employees. Summary of the invention

[0004] The embodiment of the present invention provides a twin-screw pump anti-leakage tooling and a leakage rate monitoring method integrating detection and collection, aiming to solve the technical problems in the prior art of twin-screw pumps leaking liquid and polluting the environment, and frequent maintenance increases the labor intensity of employees.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] In a first aspect, a twin-screw pump anti-leakage tooling integrating detection and collection is provided, comprising:

[0007] A liquid collecting cylinder, wherein the top of the liquid collecting cylinder is connected to a liquid inlet pipe, the bottom of the liquid collecting cylinder is connected to a liquid outlet pipe, the inlet end of the liquid inlet pipe is connected to a twin-screw pump, and a switch valve is provided on the liquid outlet pipe;

[0008] A storage component, used for storing the leaked medium, wherein the outlet end of the liquid outlet pipe is connected to the storage component; and

[0009] The detection component includes a processor and a sensor part. The sensor part is arranged on the side wall of the inner cavity of the liquid collecting cylinder and is used to detect the liquid level height of the inner cavity of the liquid collecting cylinder. The processor is arranged on the outer wall of the liquid collecting cylinder and is respectively communicated with the twin-screw pump, the sensor part and the switch valve.

[0010] In a possible implementation, the axis of the liquid collecting cylinder is parallel to the horizontal direction, and the twin-screw pump anti-leakage tooling integrating detection and collection also includes a base, which is arranged on the working platform, and the liquid collecting cylinder is installed on the top of the base.

[0011] In combination with the first aspect, in a possible implementation, the twin-screw pump anti-leakage tooling integrating detection and collection also includes a second tube and multiple first tubes, the inlet ends of the multiple first tubes are respectively connected to the twin-screw pumps, and the outlet ends of the first tubes are respectively connected to the liquid inlet pipe; the two ends of the second tube are respectively connected to the liquid outlet pipe and the storage assembly.

[0012] In combination with the first aspect, in a possible implementation manner, a discharge port is further provided at the bottom of the liquid collecting cylinder.

[0013] In combination with the first aspect, in a possible implementation, the storage assembly includes a storage tank with a top opening and a sealing cover, wherein the sealing cover seals the opening of the storage tank, and a liquid inlet hole is provided on the sealing cover, and the liquid inlet hole is lower than the outlet end of the liquid outlet pipe.

[0014] In combination with the first aspect, in a possible implementation manner, the sensing unit includes:

[0015] A touch sensor is arranged on the side wall of the inner cavity of the liquid collecting cylinder, and the touch sensor has a sensing surface;

[0016] a floating ball, floating on the liquid surface of the leaked medium in the liquid collecting cylinder; and

[0017] A swing rod, the middle part of which is hinged to the liquid collecting cylinder, and the hinge axis is perpendicular to the horizontal direction and the axis of the liquid collecting cylinder, one end of the swing rod is connected to the floating ball, and the other end of the swing rod is provided with a swing head, which can abut the sensing surface when the liquid level of the leaking medium is not lower than the maximum allowable height.

[0018] In combination with the first aspect, in a possible implementation manner, the detection component further includes an alarm, and the alarm is communicatively connected to the processor.

[0019] In combination with the first aspect, in a possible implementation manner, the warning device is a warning light.

[0020] Compared with the prior art, the twin-screw pump anti-leakage tooling provided by the present invention, which integrates detection and collection, collects the leaked medium through a liquid collecting cylinder. After a certain volume is collected, the leaked medium can be further stored in a storage component, thereby preventing the leaked medium of the twin-screw pump from directly leaking into the external environment, achieving zero medium discharge, and preventing the working environment from being polluted. The sensor unit monitors the liquid level changes in the liquid collecting cylinder. When the medium level is higher than the preset position, the sensor unit transmits a signal to the processor, and the processor controls the switch valve to open, so that the leaked medium in the liquid collecting cylinder can be discharged into the storage component, thereby avoiding excessive medium capacity in the liquid collecting cylinder; no manual intervention is required during the entire collection process, which greatly improves the safety and convenience of operation; the staff does not need to frequently check the sealing status of the twin-screw pump, reducing the workload.

[0021] In a second aspect, a leakage rate monitoring method is provided, which is implemented based on a twin-screw pump anti-leakage tooling that integrates detection and collection as any of the above possible implementations to monitor the medium leakage rate of the twin-screw pump, and is implemented based on the following steps:

[0022] S1: The sensor unit obtains the real-time liquid level in the liquid collecting cylinder, and when the real-time liquid level is higher than a preset height, the processor controls the switch valve to open;

[0023] S2: Calculate the time difference Δt between the opening and closing of the switch valve twice;

[0024] S3: Compare the time difference Δt with the shortest preset time length;

[0025] If the time difference Δt> the shortest preset time, the processor determines that the leakage rate of the twin-screw pump is within the allowable range, and the twin-screw pump continues to work;

[0026] If the time difference Δt≤the shortest preset time, the processor determines that the leakage rate of the twin-screw pump exceeds the allowable range, and the processor controls the twin-screw pump to stop working.

[0027] In combination with the second aspect, in a possible implementation, after step S3, the method further includes: acquiring a plurality of continuously distributed time differences Δt;

[0028] If the opening time difference value of the switch valve gradually decreases, it is judged that the leakage risk gradually decreases;

[0029] If the opening time difference value of the switch valve gradually increases, and the opening time difference is greater than the shortest preset time, it is judged that the leakage risk is gradually increasing, and the processor generates a first-level warning instruction;

[0030] If the opening time difference is ≤ the shortest preset time, it is determined that the leakage needs to be stopped, and the processor generates a secondary warning instruction.

[0031] Compared with the prior art, the leakage rate monitoring method provided by the present invention adopts a sensing part to monitor the liquid level changes in the liquid collecting cylinder. When the medium liquid level is higher than a preset position, the sensing part transmits a signal to the processor, and the processor controls the switch valve to open, so that the leaked medium in the liquid collecting cylinder can be discharged into the storage component, thereby avoiding excessive medium capacity in the liquid collecting cylinder; no manual intervention is required during the entire collection process, which greatly improves the operational safety and convenience; the staff does not need to frequently check the sealing status of the twin-screw pump, thereby reducing the workload; it is easy to obtain the time difference between the two openings of the switch valve, and after comparing multiple time differences, it can be clearly and intuitively judged whether the opening speed of the switch valve is accelerated or reduced, accurately reflecting the medium leakage rate of the twin-screw pump, and increasing the reliability of the monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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 embodiments or the description of the prior art 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.

[0033] Figure 1 A schematic diagram of the main structure of a twin-screw pump anti-leakage tooling integrating detection and collection provided in an embodiment of the present invention;

[0034] Figure 2 for Figure 1 Side view of

[0035] Figure 3 for Figure 1 Schematic diagram of the assembly of the detection component and the liquid collecting cylinder used in Figure 1 ;

[0036] Figure 4 for Figure 1 Schematic diagram of the assembly of the detection component and the liquid collecting cylinder used in Figure 2 .

[0037] Description of reference numerals:

[0038] 1. Liquid collecting cylinder; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Switch valve; 14. Discharge port;

[0039] 2. Storage component; 21. Storage tank; 22. Sealing cover;

[0040] 3. Detection component; 31. Processor; 32. Sensing unit; 321. Touch sensor; 322. Floating ball; 323. Swinging rod;

[0041] 4. Base;

[0042] 5. First tube;

[0043] 6. Second tube;

[0044] 7. Twin-screw pump. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the invention.

[0047] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0049] Please also read Figures 1 to 4, the anti-leakage tooling for the twin-screw pump 7 that integrates detection and collection provided by the present invention is now described. The anti-leakage tooling for the twin-screw pump 7 that integrates detection and collection includes a liquid collecting barrel 1, a storage component 2, and a detection component 3. The top of the liquid collecting barrel 1 is connected to a liquid inlet pipe 11, and the bottom of the liquid collecting barrel 1 is connected to a liquid outlet pipe 12. The inlet end of the liquid inlet pipe 11 is connected to the twin-screw pump 7, and the liquid outlet pipe 12 is provided with a switch valve 13; the storage component 2 is used to store the leaking medium, and the outlet end of the liquid outlet pipe 12 is connected to the storage component 2; the detection component 3 includes a processor 31 and a sensor part 32. The sensor part 32 is arranged on the side wall of the inner cavity of the liquid collecting barrel 1, and is used to detect the liquid level height of the inner cavity of the liquid collecting barrel 1. The processor 31 is arranged on the outer wall of the liquid collecting barrel 1, and is respectively connected to the twin-screw pump 7, the sensor part 32 and the switch valve 13 for communication.

[0050] It should be noted that the liquid collecting cylinder 1 is a metal cylinder with high strength and long service life.

[0051] It should be noted that the liquid inlet pipe 11 is higher than the liquid outlet pipe 12, and the two ends of the twin-screw pump 7 are mechanically sealed, and the bottom of the mechanical seal is connected to the liquid inlet pipe 11, so that the medium that would have leaked enters the liquid collecting cylinder 1 along the liquid inlet pipe 11, avoiding medium leakage. The medium can be recovered, reducing the loss cost, the medium will not pollute the environment, and the recovery rate and utilization rate of the medium are improved.

[0052] It should be noted that the processor 31 receives the transmission data from the sensor unit 32 to control the opening and closing of the switch valve 13 .

[0053] It should be noted that the preset height refers to the maximum allowable capacity in the liquid collecting cylinder 1. When the preset height is exceeded, the switch valve 13 needs to be opened to discharge the medium. When the switch valve 13 is opened frequently, the twin-screw pump 7 needs to be controlled to stop for maintenance.

[0054] Compared with the prior art, the anti-leakage tooling for the twin-screw pump 7 provided in this embodiment integrates detection and collection. The leaked medium is collected through the liquid collecting cylinder 1. After a certain volume is collected, the leaked medium can be further stored in the storage assembly 2, so as to avoid the leaked medium of the twin-screw pump directly leaking into the external environment, achieve zero medium discharge, and prevent the working environment from being polluted. The sensor part 32 monitors the liquid level change in the liquid collecting cylinder 1. When the medium liquid level is higher than the preset position, the sensor part 32 transmits a signal to the processor 31, and the processor 31 controls the switch valve 13 to open, so that the leaked medium in the liquid collecting cylinder 1 can be discharged into the storage assembly 2, so as to avoid excessive medium capacity in the liquid collecting cylinder 1; no manual intervention is required during the entire collection process, which greatly improves the safety and convenience of operation; the staff does not need to frequently check the sealing state of the twin-screw pump, which reduces the workload.

[0055] In some embodiments, see Figure 1 and Figure 2 , the axis of the liquid collecting cylinder 1 is parallel to the horizontal direction, and the anti-leakage tooling of the twin-screw pump 7 integrating detection and collection also includes a base 4, which is arranged on the working platform, and the liquid collecting cylinder 1 is installed on the top of the base 4. The axis of the liquid collecting cylinder 1 is parallel to the horizontal direction, so that the two end faces of the liquid collecting cylinder 1 are respectively perpendicular to the horizontal plane, which is convenient for the processor 31 and the sensor part 32 to be installed on the end wall of the liquid collecting cylinder 1, reducing the difficulty of assembly, and the base 4 can hold up the liquid collecting cylinder 1. The contact area between the base 4 and the working platform is larger than the contact area between the liquid collecting cylinder 1 and the working platform, which is convenient for fixing the liquid collecting cylinder 1 at a specified position and improving the stability of the liquid collecting cylinder 1. Due to the setting of the base 4, there is a gap between the liquid collecting cylinder 1 and the working platform, and the liquid outlet pipe 12 can be opened at the bottom of the liquid collecting cylinder 1, which is convenient for the medium in the liquid collecting cylinder 1 to be discharged.

[0056] In specific implementation, the top of the base 4 has a fixing groove that conforms to the side wall of the liquid collecting cylinder 1, and the side wall of the liquid collecting cylinder 1 is plugged into the fixing groove and welded together, thereby improving the connection strength and the stability of use.

[0057] In some embodiments, see Figure 3 and Figure 4 The anti-leakage tooling for the twin-screw pump 7 integrating detection and collection also includes a second tube 6 and a plurality of first tubes 5. The inlet ends of the plurality of first tubes 5 are respectively connected to the twin-screw pump 7, and the outlet ends of the first tubes 5 are respectively connected to the liquid inlet pipe 11; the two ends of the second tube 6 are respectively connected to the liquid outlet pipe 12 and the storage assembly 2. A plurality of first tubes 5 are provided, and the plurality of first tubes 5 can be respectively connected to the liquid collecting cylinder 1 from the mechanical seal of the twin-screw pump 7 to increase the guiding effect on the medium and prevent the medium from leaking from the mechanical seal. The second tube 6 can connect the liquid outlet pipe 12 and the storage assembly 2 to realize the transportation of the medium.

[0058] It should be noted that mechanical seals are respectively provided at both ends of the twin-screw pump 7, and two anti-leakage tools for the twin-screw pump 7 that integrate detection and collection can be provided for this purpose. The mechanical seals can be connected to multiple first pipes 5 respectively to improve the guiding effect of the medium that is about to leak, so that all the medium enters the liquid collecting cylinder 1, with zero medium leakage, and improve environmental protection.

[0059] In some embodiments, see Figure 3 The bottom of the liquid collecting cylinder 1 is also provided with a drain port 14. The drain port 14 is provided at the bottom of the liquid collecting cylinder 1. When the liquid collecting cylinder 1 stops being used, the medium remaining in the liquid collecting cylinder 1 can be discharged through the drain port 14, and the water used to flush the liquid collecting cylinder 1 can also be discharged from the drain port 14, so that the liquid collecting cylinder 1 can be cleaned conveniently.

[0060] In specific implementation, during the entire working process, the discharge port 14 is in a blocked state.

[0061] In some embodiments, see Figure 4 The storage assembly 2 includes a storage tank 21 with an opening at the top and a blocking cover 22. The blocking cover 22 blocks the opening of the storage tank 21. A liquid inlet hole is provided on the blocking cover 22, and the liquid inlet hole is lower than the outlet end of the liquid outlet pipe 12. The storage tank 21 has a receiving cavity, which can store all the media leaked from the twin-screw pump 7, thereby improving the recovery rate of the media and saving the use cost. The blocking cover 22 can block the storage tank 21, so that the receiving cavity becomes a sealed state, which is convenient for storing the media. When recovering the media, the blocking cover 22 is opened to take out the media.

[0062] In specific implementation, the storage tank 21 can also be connected to the recovery pipeline, and the medium entering the storage tank 21 can enter the processing equipment through the recovery pipeline to participate in the mechanical seal again after processing.

[0063] In some embodiments, see Figure 3 The sensing part 32 includes a touch sensor 321, a floating ball 322 and a swing rod 323. The touch sensor 321 is arranged on the side wall of the inner cavity of the liquid collecting barrel 1, and the touch sensor 321 has a sensing surface; the floating ball 322 floats on the liquid surface of the leaking medium in the liquid collecting barrel 1; the middle part of the swing rod 323 is hinged to the liquid collecting barrel 1, and the hinge axis is perpendicular to the horizontal direction and the axis of the liquid collecting barrel 1, one end of the swing rod 323 is connected to the floating ball 322, and the other end of the swing rod 323 is provided with a swing head, which can abut the sensing surface when the liquid surface of the leaking medium is not lower than the maximum allowable height. The floating ball 322 rises as the medium increases. When the floating ball 322 rotates, it drives the swing rod 323 to swing. When the medium in the liquid collecting cylinder 1 reaches a certain capacity, the other end of the swing rod 323 touches the sensing surface of the touch sensor 321. The touch sensor 321 feeds back a signal to the processor 31. The processor 31 controls the switch valve 13 to open, so that the medium in the liquid collecting cylinder 1 flows into the storage tank 21.

[0064] Specifically, the touch sensor 321 may be a float type liquid level sensor.

[0065] It should be noted that two sensing surfaces can be provided, and the two sensing surfaces are provided up and down. When the floating ball 322 touches the bottom of the liquid collecting cylinder 1, the other end of the swing rod 323 is lifted up and contacts the sensing surface at the top, and the sensor part 32 transmits a signal to the processor 31, and the processor 31 controls the switch valve 13 to close; when the floating ball 322 rises to a certain height with the increase of the medium, the other end of the swing rod 323 contacts the sensing surface located below, and the sensor part 32 transmits a signal to the processor 31, and the processor 31 controls the switch valve 13 to open.

[0066] In some embodiments, the detection component 3 further includes an alarm, which is in communication with the processor 31. The alarm is in communication with the processor 31, and when the processor 31 determines that the leakage rate of the twin-screw pump 7 increases, the alarm is controlled to alarm, reminding the staff that the twin-screw pump 7 is abnormal, so that the staff can perform maintenance in time, thereby improving the timeliness of information feedback.

[0067] Optionally, the alarm may be an audible alarm or a light alarm, as long as it can alert employees.

[0068] In some embodiments, the warning device is a warning light. The warning light can change the light, and the light propagation area is large, which can intuitively display whether the twin-screw pump 7 is faulty, which is conducive to employees to find and deal with faults in time.

[0069] Based on the same inventive concept, the present application also provides a leakage rate monitoring method, which is implemented based on a twin-screw pump anti-leakage tooling that integrates detection and collection as any one of the above embodiments, to monitor the medium leakage rate of the twin-screw pump 7, and is implemented based on the following steps: S1: The sensor unit 32 obtains the real-time liquid level height in the liquid collecting cylinder 1, and when the real-time liquid level height is higher than the preset height, the processor 31 controls the switch valve 13 to open; S2: Calculate the time difference Δt between the opening and closing of the switch valve 13 twice; S3: Compare the time difference Δt with the shortest preset time length; if the time difference Δt>the shortest preset time length, the processor 31 determines that the leakage rate of the twin-screw pump is within the allowable range, and the twin-screw pump continues to work; if the time difference Δt≤the shortest preset time length, the processor 31 determines that the leakage rate of the twin-screw pump exceeds the allowable range, and the processor 31 controls the twin-screw pump to stop working.

[0070] It should be noted that the shortest preset time refers to the shortest time for the leaked medium of the twin-screw pump 7 to fill the liquid collecting cylinder 1 under a controllable state. When the shortest preset time is exceeded, the medium leakage rate of the twin-screw pump 7 is greater than the discharge rate after the switch valve 13 is opened, affecting the normal operation of the detection component 3.

[0071] During specific implementation, the processor 31 can be connected to the employee's terminal or control platform for communication, and display the opening time of the switch valve 13 and the time difference between two adjacent openings of the switch valve 13 to the terminal or the control platform.

[0072] Compared with the prior art, the leakage rate monitoring method provided in this embodiment uses the sensing part 32 to monitor the liquid level changes in the liquid collecting barrel 1. When the medium liquid level is higher than the preset position, the sensing part 32 transmits a signal to the processor 31, and the processor 31 controls the switch valve 13 to open, so that the leaked medium in the liquid collecting barrel 1 can be discharged into the storage component 2, thereby avoiding excessive medium capacity in the liquid collecting barrel 1; no manual intervention is required during the entire collection process, which greatly improves the operational safety and convenience; the staff does not need to frequently check the sealing status of the twin-screw pump, thereby reducing the workload; it is easy to obtain the time difference between the two openings of the switch valve 13, and after comparing multiple time differences, it can be clearly and intuitively judged whether the opening speed of the switch valve 13 is accelerated or reduced, accurately reflecting the medium leakage rate of the twin-screw pump, and increasing the reliability of the monitoring data.

[0073] In some embodiments, after step S3, it further includes: obtaining a plurality of time differences Δt that are continuously distributed; if the opening time difference value of the switch valve 13 gradually decreases, it is judged that the leakage risk is gradually decreasing; if the opening time difference value of the switch valve 13 gradually increases, and the opening time difference> the shortest preset time, it is judged that the leakage risk is gradually increasing, and the processor 31 generates a first-level warning instruction; if the opening time difference is ≤ the shortest preset time, it is judged that the leakage needs to be stopped, and the processor 31 generates a second-level warning instruction. The processing pump 31 issues different warnings according to the changes in the opening time difference of the switch valve 13 to remind employees, speed up the maintenance progress, and minimize losses.

[0074] In some embodiments, the alarm is a warning light, which has a working color, a first warning color, and a second warning color. One of the working color, the first warning color, and the second warning color is selected to light up; when the alarm is in working state, the working color is lit, when the processor 31 determines that the leakage rate of the twin-screw pump 7 increases, the first warning color is lit, and when the processor 31 determines that the leakage rate of the twin-screw pump 7 is too fast, the second warning color is lit. The warning light of this embodiment has three display colors, which display different colors in different situations to remind the staff to make corresponding preparations.

[0075] In specific implementation, the warning light has three lights, red, green and blue. When the warning light is powered on, it displays a green light. When the opening interval of the switch valve 13 gradually becomes smaller, the warning light turns blue, reminding employees that the twin-screw pump 7 is leaking, and employees can prepare maintenance tools in advance; when the processor 31 determines that the opening interval of the twin-screw pump 7 is lower than the shortest preset time, the warning light is displayed in red, indicating that the leakage speed of the twin-screw pump 7 is uncontrollable, and the processor 31 simultaneously shuts down the twin-screw pump 7, and employees can repair the twin-screw pump 7 in time to reduce losses.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A twin-screw pump anti-leakage tooling integrating detection and collection, characterized in that: include: A liquid collecting cylinder, wherein the top of the liquid collecting cylinder is connected to a liquid inlet pipe, the bottom of the liquid collecting cylinder is connected to a liquid outlet pipe, the inlet end of the liquid inlet pipe is connected to a twin-screw pump, and a switch valve is provided on the liquid outlet pipe; A storage component, used for storing the leaked medium, wherein the outlet end of the liquid outlet pipe is connected to the storage component; as well as The detection component includes a processor and a sensor part. The sensor part is arranged on the side wall of the inner cavity of the liquid collecting cylinder and is used to detect the liquid level height of the inner cavity of the liquid collecting cylinder. The processor is arranged on the outer wall of the liquid collecting cylinder and is respectively communicated with the twin-screw pump, the sensor part and the switch valve.

2. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The axis of the liquid collecting cylinder is parallel to the horizontal direction. The twin-screw pump anti-leakage tooling integrating detection and collection also includes a base, which is arranged on the working platform, and the liquid collecting cylinder is installed on the top of the base.

3. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The twin-screw pump anti-leakage tooling integrating detection and collection also includes a second tube and multiple first tubes, the inlet ends of the multiple first tubes are respectively connected to the twin-screw pumps, and the outlet ends of the first tubes are respectively connected to the liquid inlet pipes; the two ends of the second tube are respectively connected to the liquid outlet pipe and the storage assembly.

4. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The bottom of the liquid collecting cylinder is also provided with a discharge port.

5. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The storage assembly comprises a storage tank with an opening at the top and a blocking cover, wherein the blocking cover blocks the opening of the storage tank, and a liquid inlet hole is provided on the blocking cover, and the liquid inlet hole is lower than the outlet end of the liquid outlet pipe.

6. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The sensing unit comprises: A touch sensor is arranged on the side wall of the inner cavity of the liquid collecting cylinder, and the touch sensor has a sensing surface; a floating ball, floating on the liquid surface of the leaked medium in the liquid collecting cylinder; and A swing rod, the middle part of which is hinged to the liquid collecting cylinder, and the hinge axis is perpendicular to the horizontal direction and the axis of the liquid collecting cylinder, one end of the swing rod is connected to the floating ball, and the other end of the swing rod is provided with a swing head, which can abut the sensing surface when the liquid level of the leaking medium is not lower than the maximum allowable height.

7. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 1, characterized in that: The detection component also includes an alarm, and the alarm is communicatively connected with the processor.

8. The twin-screw pump anti-leakage tool integrating detection and collection as claimed in claim 7, characterized in that: The warning device is a warning light.

9. A leakage rate monitoring method, based on the twin-screw pump anti-leakage tooling integrating detection and collection as described in any one of claims 1 to 8, to monitor the medium leakage rate of the twin-screw pump, characterized in that: This is achieved based on the following steps: S1: The sensor unit obtains the real-time liquid level in the liquid collecting cylinder, and when the real-time liquid level is higher than a preset height, the processor controls the switch valve to open; S2: Calculate the time difference Δt between the opening and closing of the switch valve twice; S3: Compare the time difference Δt with the shortest preset time length; If the time difference Δt> the shortest preset time, the processor determines that the leakage rate of the twin-screw pump is within the allowable range, and the twin-screw pump continues to work; If the time difference Δt≤the shortest preset time, the processor determines that the leakage rate of the twin-screw pump exceeds the allowable range, and the processor controls the twin-screw pump to stop working.

10. The leakage rate monitoring method according to claim 9, characterized in that: After step S3, the method further includes: obtaining a plurality of continuously distributed time differences Δt; If the opening time difference value of the switch valve gradually decreases, it is judged that the leakage risk gradually decreases; If the opening time difference value of the switch valve gradually increases, and the opening time difference is greater than the shortest preset time, it is judged that the leakage risk is gradually increasing, and the processor generates a first-level warning instruction; If the opening time difference is ≤ the shortest preset time, it is determined that the leakage needs to be stopped, and the processor generates a secondary warning instruction.

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