Nuclear magnetic paramagnetic tube cleaning equipment and control method thereof

Abstract

The invention relates to the technical field of use and maintenance of nuclear magnetic paramagnetic tubes, in particular to nuclear magnetic paramagnetic tube cleaning equipment and a control method thereof, and the nuclear magnetic paramagnetic tube cleaning equipment comprises a cleaning box, a cleaning tube and a pump body; the cleaning box is provided with a cleaning cavity, and the cleaning cavity is used for containing cleaning liquid and a nuclear magnetic paramagnetic tube; at least part of the cleaning pipe is arranged in the cleaning cavity, and the cleaning pipe extends into the pipe bottom end of the nuclear magnetic paramagnetic pipe; the pump body is communicated with the cleaning pipe, the working state of the pump body comprises a first state and a second state, under the condition that the pump body is in the first state, the cleaning liquid at least immerses the open end of the nuclear magnetic paramagnetic pipe, the pump body is used for enabling the cleaning pipe to generate negative pressure so as to suck the cleaning liquid, and the cleaning liquid flows from the open end to the bottom end of the pipe and cleans the inner wall of the nuclear magnetic paramagnetic pipe; and under the condition that the pump body is in the second state, the pump body is used for enabling the cleaning pipe to generate positive pressure, the cleaned nuclear magnetic paramagnetic pipe is purged, and residues on the inner wall of the pipe are removed. According to the cleaning device, efficient and lossless cleaning of nuclear magnetic paramagnetic tubes of different specifications can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of use and maintenance of nuclear magnetic paramagnetic tubes, in particular to nuclear magnetic paramagnetic tube cleaning equipment and a control method thereof. Background Art

[0002] With the development of science and technology, nuclear magnetic resonance and paramagnetic resonance have been widely used. Nuclear magnetic sample tubes and paramagnetic sample tubes (hereinafter referred to as nuclear magnetic paramagnetic tubes) are containers required for the corresponding resonance instrument tests, which are usually made of high-purity quartz.

[0003] For repeated use, after completing the corresponding test, the nuclear magnetic paramagnetic tube needs to be cleaned to ensure its cleanliness. Conventional nuclear magnetic paramagnetic tube cleaning methods include acetone shaking method and ethanol ultrasonic vibration method, which have relatively low cleaning efficiency, and the high temperature baking in the shaking method and the ultrasonic vibration in the ultrasonic vibration method are easy to damage the tube body.

[0004] In addition, the specifications of nuclear magnetic paramagnetic tubes vary depending on the sample precision requirements. Taking the nuclear magnetic sample tube as an example, its diameter is about 5mm and its length is about 180 to 250mm. Paramagnetic resonance has high sensitivity and can reach a detection concentration of picomoles. A small amount of sample signal may affect the experimental results, so it has higher requirements for sample precision. Correspondingly, the diameter of paramagnetic sample tubes has specifications such as 2 to 6mm, and the length has specifications such as 110 to 250mm. Thin, long and multi-specification nuclear magnetic paramagnetic tubes further increase the difficulty of cleaning. Summary of the invention

[0005] The nuclear magnetic paramagnetic tube cleaning equipment and the control method thereof provided in the embodiments of the present invention at least solve the problem that the existing nuclear magnetic paramagnetic tube cleaning equipment is difficult to clean nuclear magnetic paramagnetic tubes of different specifications efficiently and non-destructively. By setting a cleaning box, a cleaning tube and a pump body, efficient and non-destructive cleaning of nuclear magnetic paramagnetic tubes of different specifications can be achieved.

[0006] In the first aspect, the present invention provides a nuclear magnetic paramagnetic tube cleaning device, comprising a cleaning box, the cleaning box is provided with a cleaning cavity, the cleaning cavity is used to set a cleaning liquid and a nuclear magnetic paramagnetic tube; a cleaning tube, at least part of the cleaning tube is arranged in the cleaning cavity, the cleaning tube extends to the bottom end of the nuclear magnetic paramagnetic tube; and a pump body, the pump body is connected to the cleaning tube, the working state of the pump body includes a first state and a second state, when the pump body is in the first state, the cleaning liquid at least immerses the open end of the nuclear magnetic paramagnetic tube, the pump body is used to generate a negative pressure in the cleaning tube to absorb the cleaning liquid, the cleaning liquid flows from the open end to the bottom end of the tube, and cleans the inner wall of the nuclear magnetic paramagnetic tube; when the pump body is in the second state, the pump body is used to generate a positive pressure in the cleaning tube to purge the cleaned nuclear magnetic paramagnetic tube and remove residues on the inner wall of the tube.

[0007] In one embodiment of the present invention, it also includes a first valve body, which is arranged on a first pipeline, the first pipeline is a pipeline connecting the cleaning pipe and the inlet of the pump body, the first valve body includes a first-first valve port, a first-second valve port and a first-third valve port, the first-first valve port is connected to the inlet of the pump body, the first-second valve port is connected to the cleaning pipe, and the first-third valve port is connected to the external air; and a second valve body, the second valve body is arranged on a second pipeline, the second pipeline is a pipeline connecting the cleaning pipe and the outlet of the pump body, the second valve body includes a second-first valve port, a second-second valve port and a second-third valve port, the second-first valve port is connected to the outlet of the pump body, the second-second valve port is connected to the cleaning pipe, and the second-third valve port is connected to the discharge port; wherein, when the pump body is in the first state, the first-first valve port is connected to the first-second valve port, and the second-first valve port is connected to the second-third valve port; when the pump body is in the second state, the first-first valve port is connected to the first-third valve port, and the second-first valve port is connected to the second-second valve port.

[0008] In one embodiment of the present invention, it also includes a third valve body, the third valve body is arranged on the second pipeline, the third valve body includes a third-first valve port, a third-second valve port and a third-third valve port, the third-first valve port is connected to the second-second valve port, and the third-second valve port is connected to the cleaning pipe; a waste liquid tank, the waste liquid tank is arranged on the first pipeline, the waste liquid tank is provided with a waste liquid chamber, a waste liquid inlet, a waste liquid outlet, a first air port and a second air port; the waste liquid chamber is used to store waste liquid, the waste liquid inlet is respectively connected to the cleaning pipe and the waste liquid chamber, the waste liquid outlet is respectively connected to the waste liquid chamber and the discharge port, the first air port is respectively connected to the first-second valve ports and the waste liquid chamber, the second air port is respectively connected to the waste liquid chamber and the third-third valve port; and a fourth valve body, the fourth valve body is arranged on the third pipeline, the third pipeline is a pipeline connecting the fourth pipeline and the waste liquid outlet, and the fourth pipeline is the The second third valve port and the pipeline connected to the discharge port, the fourth valve body includes a fourth first valve port and a fourth second valve port, the fourth first valve port is connected to the waste liquid outlet, and the fourth second valve port is connected to the fourth pipeline; the working state of the pump body also includes a third state, when the pump body is in the third state, the pump body is used to generate positive pressure in the waste liquid chamber so that the waste liquid is discharged from the waste liquid chamber from the waste liquid outlet; wherein, when the pump body is in the first state, the fourth second valve port and the fourth first valve port are isolated; when the pump body is in the second state, the third first valve port and the third second valve port are connected; when the pump body is in the third state, the first first valve port and the first third valve port are connected, the second first valve port and the second second valve port are connected, the third first valve port and the third third valve port are connected, and the fourth first valve port and the fourth second valve port are connected.

[0009] In one embodiment of the present invention, a first one-way valve is provided on the third pipeline, the inlet of the first one-way valve is connected to the waste liquid outlet, the outlet of the first one-way valve is connected to the fourth-first valve port, and the pipeline between the first one-way valve and the fourth valve body is the fifth pipeline; the cleaning box is provided with a cleaning outlet, and the cleaning outlet is connected to the cleaning chamber; the nuclear magnetic paramagnetic tube cleaning equipment also includes a fifth valve body, the fifth valve body includes a fifth-first valve port and a fifth-second valve port, the fifth-first valve port is connected to the cleaning outlet, and the fifth-second valve port is connected to the fifth pipeline; wherein, when the pump body is in the second state, the fourth-first valve port is connected to the fourth-second valve port, and the fifth-first valve port is connected to the fifth-second valve port; when the pump body is in the first state or the third state, the fifth-first valve port and the fifth-second valve port are isolated.

[0010] In one embodiment of the present invention, it also includes a junction box, which is connected to the cleaning box, and is provided with a junction chamber and a junction port, and the junction port is connected to the junction chamber; a second one-way valve, which is arranged on the first pipeline, the inlet of the second one-way valve is connected to the junction port, and the outlet of the second one-way valve is connected to the waste liquid inlet; and a third one-way valve, which is arranged on the second pipeline, the inlet of the third one-way valve is connected to the third valve port, and the outlet of the third one-way valve is connected to the junction port; wherein a plurality of cleaning pipes are provided, and the plurality of cleaning pipes are arranged in a row, and one end of each of the cleaning pipes extends into the junction chamber.

[0011] In a second aspect, the present invention further provides a control method for a nuclear magnetic paramagnetic tube cleaning device based on any one of the above-mentioned items, comprising the following steps: obtaining a tube body state of the cleaning tube, and matching the tube body state with a target tube body state; wherein the target tube body state is that a nuclear magnetic paramagnetic tube is arranged on the cleaning tube, and the cleaning tube extends to the bottom end of the nuclear magnetic paramagnetic tube; if the tube body state successfully matches the target tube body state, a cleaning liquid is injected into the cleaning chamber; the real-time liquid level of the cleaning liquid is obtained, and the real-time liquid level of the cleaning liquid is matched with a first target liquid level; if the real-time liquid level of the cleaning liquid matches the target liquid level, a cleaning liquid is injected into the cleaning chamber; If the first target liquid level is matched successfully, the injection is stopped, and the pump body is controlled to enter the first state to generate negative pressure in the cleaning tube to absorb the cleaning liquid, and the cleaning liquid flows from the open end to the bottom end of the tube, and cleans the inner wall of the nuclear magnetic paramagnetic tube to obtain residual liquid; the real-time liquid level of the residual liquid is obtained, and the real-time liquid level of the residual liquid is matched with the second target liquid level; if the real-time liquid level of the residual liquid is matched with the second target liquid level successfully, the pump body is controlled to enter the second state to generate positive pressure in the cleaning tube to purge the cleaned nuclear magnetic paramagnetic tube and remove residues on the inner wall of the tube.

[0012] In one embodiment of the present invention, the following steps are also included: when the pump body is in the first state: control the first valve body so that the first valve port and the first second valve port of the first valve body are connected; control the second valve body so that the second first valve port and the second third valve port of the second valve body are connected; when the pump body is in the second state: control the first valve body so that the first valve port and the first third valve port of the first valve body are connected; control the second valve body so that the second first valve port and the second second valve port of the second valve body are connected.

[0013] In one embodiment of the present invention, the following steps are also included: when the pump body is in the first state: control the fourth valve body to isolate the fourth-first valve port and the fourth-second valve port of the fourth valve body; control the fifth valve body to isolate the fifth-first valve port and the fifth-second valve port of the fifth valve body; when the pump body is in the second state: control the third valve body to connect the third-first valve port and the third-second valve port of the third valve body; control the fourth valve body to connect the fourth-first valve port and the fourth-second valve port of the fourth valve body; control the fifth valve body to connect the fifth-first valve port and the fifth-second valve port of the fifth valve body.

[0014] In one embodiment of the present invention, the following steps are also included: obtaining the real-time liquid level of the waste liquid in the waste liquid chamber, and matching the real-time liquid level of the waste liquid with the third target liquid level; if the real-time liquid level of the waste liquid successfully matches the third target liquid level, controlling the pump body to enter the third state to generate positive pressure in the waste liquid chamber, so that the waste liquid is discharged from the waste liquid chamber from the waste liquid outlet.

[0015] In one embodiment of the present invention, the following steps are also included: when the pump body is in the third state: control the first valve body so that the first valve port and the first third valve port of the first valve body are connected; control the second valve body so that the second first valve port and the second second valve port of the second valve body are connected; control the third valve body so that the third first valve port and the third third valve port of the third valve body are connected; control the fourth valve body so that the fourth first valve port and the fourth second valve port of the fourth valve body are connected; control the fifth valve body so that the fifth first valve port and the fifth second valve port of the fifth valve body are isolated.

[0016] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0017] The nuclear magnetic paramagnetic tube cleaning equipment of the present invention can realize efficient and high-quality cleaning of nuclear magnetic paramagnetic tubes by setting a cleaning box, a cleaning tube and a pump body. When in use, it is only necessary to set the nuclear magnetic paramagnetic tube to be cleaned on the cleaning tube so that the cleaning tube extends to the bottom end of the nuclear magnetic paramagnetic tube, inject cleaning liquid into the cleaning cavity, and start the pump body. Under the action of the pump body and air pressure, the cleaning tube will absorb the cleaning liquid. The cleaning liquid flows from the open end of the nuclear magnetic paramagnetic tube to the bottom end of the tube. During the flow process, the cleaning liquid will clean the inner wall of the nuclear magnetic paramagnetic tube, become waste liquid and enter the cleaning tube, and be discharged from the cleaning cavity. Subsequently, under the action of the pump body, the cleaning tube sprays air into the nuclear magnetic paramagnetic tube to purge the cleaned nuclear magnetic paramagnetic tube so that the residue on the inner wall of the nuclear magnetic paramagnetic tube is blown away from the nuclear magnetic paramagnetic tube.

[0018] The nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, firstly, can be compatible with and clean nuclear magnetic paramagnetic tubes of different specifications through the cooperation of the cleaning tube and the cleaning box, and has good compatibility; when cleaning multiple nuclear magnetic paramagnetic tubes at the same time, it can ensure the consistency of the background signals of each nuclear magnetic paramagnetic tube after cleaning, avoid interference with the test results, and ensure the stability of subsequent tests. Secondly, through the cleaning method of negative pressure liquid suction, the cleaning is not only efficient and effective, but also gentler and less likely to damage the nuclear magnetic paramagnetic tube, ensuring the safety of subsequent tests. Finally, after the cleaning is completed, the cleaning tube sprays air into the nuclear magnetic paramagnetic tube to remove residues, thereby improving the cleaning effect and cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is one of the structural schematic diagrams of the nuclear magnetic paramagnetic tube cleaning equipment in the preferred embodiment of the present invention.

[0021] Figure 2 It is a partial structural schematic diagram of a nuclear magnetic paramagnetic tube cleaning device in a preferred embodiment of the present invention.

[0022] Figure 3 This is the second structural schematic diagram of the nuclear magnetic paramagnetic tube cleaning equipment in the preferred embodiment of the present invention.

[0023] Figure 4 It is a schematic diagram of the partial structure of the cleaning box in the preferred embodiment of the present invention.

[0024] Figure 5 This is the third structural schematic diagram of the nuclear magnetic paramagnetic tube cleaning equipment in the preferred embodiment of the present invention.

[0025] Figure 6 This is the fourth structural schematic diagram of the nuclear magnetic paramagnetic tube cleaning equipment in the preferred embodiment of the present invention.

[0026] Figure 7 It is a flow chart of a control method of a nuclear magnetic paramagnetic tube cleaning device in a preferred embodiment of the present invention.

[0027] The above drawings include the following reference numerals: 10, chassis; 101, handle; 102, discharge port; 103, control machine; 104, protective cover; 1041, cover alarm switch; 105, power switch socket; 106, first liquid level gauge; 11, cleaning box; 111, cleaning chamber; 112, cleaning liquid; 113, cleaning hole; 1131, guide part; 114, liquid injection hole; 115, cleaning outlet; 12, cleaning pipe; 121, junction box; 1211, junction chamber; 1212, junction port; 13, pump body; 14, first pipeline; 141, first valve body; 1411, first valve port; 1412, first second valve port; 1413, first third valve port; 142, waste liquid box; 1421, waste liquid chamber; 1422, waste liquid inlet; 1423, waste liquid outlet; 142 4, first gas port; 1425, second gas port; 1426, second liquid level gauge; 143, second check valve; 15, second pipeline; 151, second valve body; 1511, second first valve port; 1512, second second valve port; 1513, second third valve port; 152, third valve body; 1521, third first valve port; 1522, third second valve port; 1523, third third valve port; 153, third One-way valve; 154, heater; 16, third pipeline; 161, fourth valve body; 1611, fourth first valve port; 1612, fourth second valve port; 162, first one-way valve; 163, fifth pipeline; 17, fourth pipeline; 18, fifth valve body; 181, fifth first valve port; 182, fifth second valve port; 20, nuclear magnetic paramagnetic tube; 21, bottom end of tube; 22, open end; 23, inner wall of tube. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0031] Reference Figure 1 and Figure 2 As shown, the present invention provides a nuclear magnetic paramagnetic tube cleaning device, including a cleaning box 11, a cleaning tube 12 and a pump body 13.

[0032] The cleaning box 11 is provided with a cleaning chamber 111, which is used to set a cleaning liquid 112 and a nuclear magnetic paramagnetic tube 20, and provide a cleaning environment for cleaning the nuclear magnetic paramagnetic tube 20. Preferably, the cleaning chamber 111 is provided with an anti-corrosion coating to extend its service life and prevent the box body from being corroded.

[0033] The nuclear magnetic paramagnetic tube 20 is a nuclear magnetic resonance test nuclear magnetic sample tube or a paramagnetic resonance test paramagnetic sample tube to be cleaned. The cleaning liquid 112 belongs to the prior art and is used to clean the nuclear magnetic paramagnetic tube 20. Those skilled in the art can set a specific cleaning liquid 112 according to the actual situation of the nuclear magnetic paramagnetic tube 20. After completing the corresponding test, samples such as powder, organic solution and corrosive liquid often remain on the inner wall 23 of the nuclear magnetic paramagnetic tube 20. According to the type of sample, a cleaning liquid 112 such as water, ethanol, acetone, etc. is configured to clean the nuclear magnetic paramagnetic tube 20.

[0034] The cleaning pipe 12 is a tubular structure, which is hollow in the axial direction to facilitate fluid flow. At least part of the cleaning pipe 12 is disposed in the cleaning chamber 111; preferably, both axial ends of the cleaning pipe 12 extend out of the cleaning chamber 111. Those skilled in the art can set the material of the cleaning pipe 12 according to actual needs; illustratively, the material of the cleaning pipe 12 is set to stainless steel to extend its service life and avoid corrosion.

[0035] On the one hand, the cleaning tube 12 plays a role in supporting nuclear magnetic paramagnetic tubes 20 of different specifications. Those skilled in the art can set the size of the cleaning tube 12 according to actual needs. Exemplarily, the diameter of the cleaning tube 12 is smaller than the diameter of the thinnest nuclear magnetic paramagnetic tube 20, and the length of the cleaning tube 12 is greater than the length of the longest nuclear magnetic paramagnetic tube 20, so that the cleaning tube 12 can be inserted into the nuclear magnetic paramagnetic tube 20 and provide certain support for it, so as to play the effect of being compatible with nuclear magnetic paramagnetic tubes 20 of different specifications. Alternatively, the cleaning tube 12 can be set as a detachable structure, so as to select and replace the cleaning tube 12 adapted to the nuclear magnetic paramagnetic tube 20 according to the specifications of the current batch of nuclear magnetic paramagnetic tubes 20.

[0036] Those skilled in the art can set the number of cleaning tubes 12 according to actual needs, for example, only one cleaning tube 12 or multiple cleaning tubes 12 are set to meet the cleaning needs of different numbers of nuclear magnetic paramagnetic tubes 20. When in use, each nuclear magnetic paramagnetic tube 20 is sleeved on the corresponding cleaning tube 12, so that the cleaning tube 12 extends into the tube bottom end 21 of the nuclear magnetic paramagnetic tube 20.

[0037] On the other hand, the cleaning tube 12 plays the role of cleaning the nuclear magnetic paramagnetic tube 20. The cleaning tube 12 is connected to the pump body 13 so as to cooperate with the pump body 13 to clean the nuclear magnetic paramagnetic tube 20 and avoid uncontrollable risks such as unsafe operation of manual shaking or inability to clean residues by baking in the oven. Those skilled in the art can set the mode and position of the connection between the cleaning tube 12 and the pump body 13 according to actual needs. Exemplarily, one axial end of the cleaning tube 12 is connected to the pump body 13, and the end of the cleaning tube 12 connected to the pump body 13 is arranged in the cleaning chamber 111. How to ensure the sealing of the box and the pipeline belongs to the prior art and will not be repeated.

[0038] The working state of the pump body 13 includes a first state and a second state. When the pump body 13 is in the first state, the pump body 13 is used to generate negative pressure in the cleaning pipe 12. When the pump body 13 is in the second state, the pump body 13 is used to generate positive pressure in the cleaning pipe 12. Those skilled in the art can set the pump body 13 according to actual needs. For example, a negative pressure pump is independently set to generate negative pressure in the cleaning pipe 12, and a positive pressure pump is independently set to generate positive pressure in the cleaning pipe 12.

[0039] It should be noted that before starting the pump body 13 and switching it to the first state, it is necessary to add the corresponding cleaning liquid 112 to the cleaning chamber 111, and ensure that the cleaning liquid 112 at least immerses the open end 22 of the nuclear magnetic paramagnetic tube 20. Preferably, a liquid injection hole 114 is provided on the cleaning box 11, and the liquid injection hole 114 is connected to the cleaning chamber 111 so that the cleaning liquid 112 can be injected into the cleaning chamber 111 manually or by other devices. Those skilled in the art can set the amount of cleaning liquid 112 according to actual needs to meet the cleaning needs. Exemplarily, when the other conditions are the same, the amount of cleaning liquid 112 is positively correlated with the amount of nuclear magnetic paramagnetic tube 20 to be cleaned. Preferably, during cleaning, the open end 22 of the nuclear magnetic paramagnetic tube 20 faces the ground to facilitate access and save cleaning liquid 112.

[0040] Since the volume of the cleaning chamber 111 is constant, the amount of the cleaning liquid 112 can be calculated according to the real-time liquid level of the cleaning liquid 112. Exemplarily, a first liquid level gauge 106 is provided on the cleaning box 11 to obtain the liquid level of the cleaning liquid 112 in real time and calculate the amount of the cleaning liquid 112. Preferably, the first liquid level gauge 106 is configured as a U-shaped liquid level gauge. The U-shaped liquid level gauge belongs to the prior art, and its working principle will not be described in detail.

[0041] After the injection of the cleaning liquid 112 is completed, the pump body 13 generates a negative pressure in the cleaning tube 12. Under the action of the pump body 13 and the air pressure, the cleaning tube 12 absorbs the cleaning liquid 112. The cleaning liquid 112 flows from the open end 22 of the nuclear magnetic paramagnetic tube 20 to the bottom end 21 of the tube. During the flow, the cleaning liquid 112 cleans the inner wall 23 of the nuclear magnetic paramagnetic tube 20 and becomes waste liquid. Subsequently, the waste liquid enters the cleaning tube 12 and is discharged from the cleaning cavity 111. This cleaning method can clean the inner wall 23 of the slender nuclear magnetic paramagnetic tube 20. It not only has high cleaning efficiency and good cleaning effect, but also is more gentle and less likely to damage the nuclear magnetic paramagnetic tube 20 compared to other cleaning methods, such as the method of cleaning by injecting liquid into the tube, so as to ensure the safety of subsequent experiments. In the case of cleaning multiple nuclear magnetic paramagnetic tubes 20 at the same time, the consistency of the background signals of each nuclear magnetic paramagnetic tube 20 after cleaning can be ensured, so as to avoid interference with the test results and ensure the stability of subsequent experiments.

[0042] After the cleaning is completed, the pump body 13 is switched to the second state to work. Those skilled in the art can set the timing of the switch according to actual needs. For example, a cleaning time is set, and after the cleaning time is met, the state of the pump body 13 is switched; or, according to the liquid level of the cleaning liquid 112, after the cleaning liquid 112 is separated from the open end 22 of the nuclear magnetic paramagnetic tube 20, the state of the pump body 13 is switched.

[0043] At this time, the cleaning tube 12 sprays air into the nuclear magnetic paramagnetic tube 20 to purge the cleaned nuclear magnetic paramagnetic tube 20. Under the action of the airflow, the residue on the inner wall 23 of the nuclear magnetic paramagnetic tube 20 is removed. For example, the residual waste liquid will be blown away from the nuclear magnetic paramagnetic tube 20 and fall into the residual liquid in the cleaning chamber. On the one hand, a good cleaning effect is guaranteed; on the other hand, the inner wall 23 of the nuclear magnetic paramagnetic tube 20 can be quickly dried to improve the cleaning efficiency.

[0044] Those skilled in the art can set the pump body 13 according to actual needs; for example, the pump body 13 is set as a vacuum pump. Those skilled in the art can set the connecting pipeline between the pump body 13 and the cleaning pipe 12 according to actual needs; for example, a one-way valve is set on the pipeline to prevent problems such as backflow.

[0045] The nuclear magnetic paramagnetic tube cleaning equipment of the present invention can achieve efficient and high-quality cleaning of the nuclear magnetic paramagnetic tube 20 by setting a cleaning box 11, a cleaning tube 12 and a pump body 13. When in use, it is only necessary to set the nuclear magnetic paramagnetic tube 20 to be cleaned on the cleaning tube 12, so that the cleaning tube 12 extends to the tube bottom 21 of the nuclear magnetic paramagnetic tube 20, inject the cleaning liquid 112 into the cleaning chamber 111, and start the pump body 13. Under the action of the pump body 13 and the air pressure, the cleaning tube 12 will absorb the cleaning liquid 112. The cleaning liquid 112 flows from the open end 22 of the nuclear magnetic paramagnetic tube 20 to its tube bottom 21. During the flow process, the cleaning liquid 112 will clean the tube inner wall 23 of the nuclear magnetic paramagnetic tube 20, become waste liquid and enter the cleaning tube 12, and be discharged from the cleaning chamber 111. Subsequently, under the action of the pump body 13 , the cleaning tube 12 sprays air into the nuclear magnetic paramagnetic tube 20 to purge the cleaned nuclear magnetic paramagnetic tube 20 , so that the residues on the inner wall 23 of the nuclear magnetic paramagnetic tube 20 are blown away from the nuclear magnetic paramagnetic tube 20 .

[0046] The nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, firstly, can be compatible with and clean nuclear magnetic paramagnetic tubes 20 of different specifications through the cooperation of the cleaning tube 12 and the cleaning box 11, and has good compatibility; when cleaning multiple nuclear magnetic paramagnetic tubes 20 at the same time, it can ensure the consistency of the background signals of each nuclear magnetic paramagnetic tube 20 after cleaning, avoid interference with the test results, and ensure the stability of subsequent tests. Secondly, through the cleaning method of negative pressure liquid suction, the cleaning is not only efficient and effective, but also gentle and not easy to damage the nuclear magnetic paramagnetic tube 20, ensuring the safety of subsequent tests. Finally, after the cleaning is completed, the cleaning tube 12 sprays air into the nuclear magnetic paramagnetic tube 20 to remove residues, thereby improving the cleaning effect and cleaning efficiency.

[0047] Preferably, refer to Figure 3 and Figure 5As shown, the nuclear magnetic paramagnetic tube cleaning equipment of the present invention also includes a chassis 10. Each component is integrated in the chassis 10. Preferably, a handle 101 is provided on the chassis 10 for easy carrying. Preferably, the nuclear magnetic paramagnetic tube cleaning equipment of the present invention also includes a control machine 103, which is arranged on the chassis 10 and electrically connected to other components to control them. Preferably, the control machine 103 is configured as an industrial microcomputer, which is provided with a touch screen control system, and an editable logic controller or PLC program is used to realize intelligent control. Preferably, a digital communication interface is integrated on the control machine 103 to reserve an expandable interface, so that the equipment can be used in conjunction with other instruments, and modular products are provided for the construction of intelligent laboratories.

[0048] Preferably, refer to Figure 3 and Figure 4 As shown, in the nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, a cleaning hole 113 is provided on the cleaning box 11, and the cleaning hole 113 is connected to the cleaning chamber 111, and one end of the cleaning tube 12, which is not connected to the pump body 13, extends out of the cleaning chamber 111 from the cleaning hole 113 at both axial ends. By setting this structure, on the one hand, it is convenient to realize the loading and unloading of the nuclear magnetic paramagnetic tube 20; on the other hand, it is convenient for the cleaning hole 113 and the cleaning tube 12 to cooperate in limiting the nuclear magnetic paramagnetic tube 20. Preferably, a guide part 1131 is provided on the cleaning hole 113, so that the nuclear magnetic paramagnetic tube 20 can be conveniently and quickly inserted into the cleaning hole 113 and installed on the cleaning tube 12, thereby improving the overall cleaning efficiency.

[0049] Preferably, refer to Figure 1 and Figure 3 As shown, a protective cover 104 is provided on the cleaning hole 113 and the injection hole 114. By providing the protective cover 104, the cleaning chamber 111 can be closed to prevent liquid splashing and damage to staff or instruments, and can also play a certain limiting role on the nuclear magnetic paramagnetic tube 20. Preferably, a cover alarm switch 1041 is provided on the chassis 10 to detect whether the protective cover 104 is in place and issue an alarm prompt when it is not in place. Preferably, a power switch socket 105 is provided on the chassis 10 to connect the power supply and realize power supply.

[0050] Reference Figure 1 and Figure 2 As shown, the nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, in some embodiments, further includes a first valve body 141 and a second valve body 151.

[0051] The first valve body 141 and the second valve body 151 are both three-way valves, and two of the three valve ports of the three-way valve can be connected to each other through control. By providing the first valve body 141 and the second valve body 151, positive pressure and negative pressure can be generated in the cleaning pipe 12 by only one pump body 13, which reduces the size of the equipment, improves space utilization, and saves energy consumed by multiple pump bodies 13.

[0052] Specifically, the pipeline connecting the inlet of the cleaning pipe 12 and the pump body 13 is the first pipeline 14, and the pipeline connecting the outlet of the cleaning pipe 12 and the pump body 13 is the second pipeline 15. Among them, the first valve body 141 is arranged on the first pipeline 14. The first valve body 141 includes a first first valve port 1411, a first second valve port 1412 and a first third valve port 1413. The first first valve port 1411 is connected to the inlet of the pump body 13, the first second valve port 1412 is connected to the cleaning pipe 12, and the first third valve port 1413 is connected to the external air. The second valve body 151 is arranged on the second pipeline 15, and the second valve body 151 includes a second first valve port 1511, a second second valve port 1512 and a second third valve port 1513. The second first valve port 1511 is connected to the outlet of the pump body 13, the second second valve port 1512 is connected to the cleaning pipe 12, and the second third valve port 1513 is connected to the discharge port 102.

[0053] When the pump body 13 is in the first state, the first valve port 1411 is connected to the first second valve port 1412, and the second first valve port 1511 is connected to the second third valve port 1513. At this time, under the action of the pump body 13, the corresponding fluid moves from the inlet of the pump body 13 to the outlet of the pump body 13, forming a negative pressure. Therefore, a pressure difference is formed inside and outside the nuclear magnetic paramagnetic tube 20, so that the cleaning liquid 112 of the open end 22 of the nuclear magnetic paramagnetic tube 20 is sucked into the tube and flows from the open end 22 of the nuclear magnetic paramagnetic tube 20 to the bottom end 21 of the tube. In the process of flowing, the cleaning liquid 112 completes the cleaning of the inner wall 23 of the nuclear magnetic paramagnetic tube 20, becomes waste liquid and enters the cleaning tube 12 and is discharged from the cleaning chamber 111.

[0054] After the cleaning is completed, the pump body 13 is switched to the second state for operation. When the pump body 13 is in the second state, the first valve port 1411 is connected to the first third valve port 1413, and the second first valve port 1511 is connected to the second second valve port 1512. At this time, under the action of the pump body 13, external air enters the pipeline from the first third valve port 1413, and moves from the inlet of the pump body 13 to the outlet of the pump body 13. Finally, the gas is ejected from the cleaning pipe 12 to form a positive pressure, which purges the cleaned nuclear magnetic paramagnetic tube 20, so that the residue on the inner wall 23 of the nuclear magnetic paramagnetic tube 20 is blown away from the nuclear magnetic paramagnetic tube 20.

[0055] Further, see Figure 6As shown, the nuclear magnetic paramagnetic tube cleaning device of the present invention, in some embodiments, further includes a waste liquid tank 142. The waste liquid tank 142 is arranged on the first pipeline 14, and is used to buffer and collect waste liquid. By collecting waste liquid, on the one hand, some high-value waste liquid can be recycled to avoid waste of resources; on the other hand, it can also prevent the waste liquid from being directly discharged and polluting the environment, thereby achieving the purpose of environmental protection.

[0056] The waste liquid tank 142 is provided with a waste liquid chamber 1421, a waste liquid inlet 1422 and a first air port 1424. Among them, the waste liquid chamber 1421 is used to store waste liquid. Preferably, the waste liquid chamber 1421 is provided with an anti-corrosion coating to extend its service life and prevent the box from being corroded. Those skilled in the art can set the volume of the waste liquid chamber 1421 according to actual needs; illustratively, the volume of the waste liquid chamber 1421 is set to be not less than the volume of the cleaning chamber 111 to prevent the problem of waste liquid overflow during the cleaning process. The waste liquid inlet 1422 is the orifice through which the waste liquid enters the waste liquid chamber 1421, and the waste liquid inlet 1422 is connected to the cleaning pipe 12 and the waste liquid chamber 1421 respectively. The first air port 1424 is connected to the first and second valve ports 1412 and the waste liquid chamber 1421 respectively. When the pump body 13 is in the first state, the sealed waste liquid chamber 1421 is equivalent to a pipeline. At this time, the gas flows through the waste liquid chamber 1421 and enters the first valve body 141 and the pump body 13, and is finally discharged from the discharge port 102. The waste liquid is buffered in the waste liquid chamber 1421, waiting for subsequent processing. By setting up the waste liquid tank 142, the safety and reliability of the equipment can be effectively improved, and the cleaning cost can be reduced.

[0057] Those skilled in the art can set the waste liquid tank 142 according to actual needs, so as to empty the waste liquid chamber 1421 after the waste liquid tank 142 is full of waste liquid. Exemplarily, the waste liquid tank 142 is set as a detachable structure so that the waste liquid tank 142 can be directly replaced.

[0058] Considering that the waste liquid tank 142 of the detachable structure is easy to affect the sealing performance, and during the operation, the staff is easy to come into contact with chemical substances, there are certain safety hazards. Figure 6 As shown, the nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, in some embodiments, also includes a third valve body 152 and a fourth valve body 161.

[0059] The third valve body 152 is a three-way valve, and two of the three valve ports of the three-way valve can be connected to each other after control. By setting the three-way valve, multiple functions can be realized by only one pump body 13, including negative pressure liquid suction cleaning, positive pressure air blowing drying and waste liquid discharge, thereby effectively reducing the size of the equipment, improving space utilization, and saving energy consumed by multiple pump bodies 13.

[0060] Specifically, the third valve body 152 is arranged on the second pipeline 15, and the second pipeline 15 is a pipeline connecting the outlets of the cleaning pipe 12 and the pump body 13. The third valve body 152 includes a third first valve port 1521, a third second valve port 1522 and a third third valve port 1523. The third first valve port 1521 is connected to the second second valve port 1512, and the third second valve port 1522 is connected to the cleaning pipe 12. The waste liquid tank 142 is also provided with a waste liquid outlet 1423 and a second gas port 1425. The waste liquid outlet 1423 is respectively connected to the waste liquid chamber 1421 and the discharge port 102, and the second gas port 1425 is respectively connected to the waste liquid chamber 1421 and the third third valve port 1523.

[0061] When the pump body 13 is in the second state, the third first valve port 1521 and the third second valve port 1522 are connected, so that the gas flows through the third valve body 152 into the cleaning pipe 12 for purging.

[0062] The working state of the pump body 13 also includes a third state. When the pump body 13 is in the third state, the pump body 13 is used to generate positive pressure in the waste liquid chamber 1421. When the pump body 13 is in the third state, the first valve port 1411 is connected to the first third valve port 1413, the second first valve port 1511 is connected to the second second valve port 1512, and the third first valve port 1521 is connected to the third third valve port 1523. Under the action of the pump body 13, external air enters the pipeline from the first third valve port 1413, and moves from the inlet of the pump body 13 to the outlet of the pump body 13. Finally, the gas flows through the second valve body 151 and the third valve body 152 and enters the waste liquid chamber 1421, so that the waste liquid in the waste liquid chamber 1421 is discharged from the waste liquid outlet 1423.

[0063] Preferably, corresponding protective valve bodies are provided on the first pipeline 14 and the second pipeline 15, and the protective valve bodies can realize the on-off of the pipeline. The protective valve body on the first pipeline 14 is respectively connected to the cleaning pipe 12 and the waste liquid inlet 1422, and the protective valve body on the second pipeline 15 is respectively connected to the cleaning pipe 12 and the third valve port 1522. Exemplarily, the protective valve body is set as a two-way valve or a one-way valve to achieve the functions of preventing backflow and maintaining pressure.

[0064] The fourth valve body 161 is a two-way valve, and the two valve ports of the two-way valve can be switched on and off after being controlled. The pipeline connected between the second third valve port 1513 and the discharge port 102 is the fourth pipeline 17, and the pipeline connected between the fourth pipeline 17 and the waste liquid outlet 1423 is the third pipeline 16. The fourth valve body 161 is arranged on the third pipeline 16, and the fourth valve body 161 includes a fourth first valve port 1611 and a fourth second valve port 1612. Among them, the fourth first valve port 1611 is connected to the waste liquid outlet 1423, and the fourth second valve port 1612 is connected to the fourth pipeline 17. When the pump body 13 is in the first state, the fourth second valve port 1612 is isolated from the fourth first valve port 1611 to maintain pressure and prevent backflow. When the pump body 13 is in the third state, the fourth first valve port 1611 is connected to the fourth second valve port 1612 to discharge waste liquid. By setting up this structure, on the one hand, the waste liquid tank 142 can automatically drain the waste liquid, avoiding disassembly, ensuring good sealing, and reducing the contact of workers with waste liquid; on the other hand, the pipeline structure is optimized and the space utilization rate is improved.

[0065] Further, see Figure 6 As shown, the nuclear magnetic paramagnetic tube cleaning device of the present invention, in some embodiments, further includes a second liquid level gauge 1426. The second liquid level gauge 1426 is disposed in the waste liquid chamber 1421, and is used to detect the liquid level of the waste liquid in the waste liquid chamber 1421, and transmit a discharge signal when the liquid level of the waste liquid reaches a preset liquid level value. The pump body 13 is configured to generate a positive pressure in the waste liquid chamber 1421 when receiving the discharge signal, and discharge the liquid to prevent the occurrence of problems such as waste liquid overflow.

[0066] Further, see Figure 6 As shown, in the nuclear magnetic paramagnetic tube cleaning equipment of the present invention, in some embodiments, a first one-way valve 162 is provided on the third pipeline 16. The inlet of the first one-way valve 162 is connected to the waste liquid outlet 1423, and the outlet of the first one-way valve 162 is connected to the fourth valve port 1611. By providing a one-way valve, the occurrence of problems such as backflow can be effectively prevented. The pipeline between the first one-way valve 162 and the fourth valve body 161 is the fifth pipeline 163. The cleaning box 11 is provided with a cleaning outlet 115, and the cleaning outlet 115 is connected to the cleaning chamber 111.

[0067] The nuclear magnetic paramagnetic tube cleaning device also includes a fifth valve body 18, which is a two-way valve. After control, the two valve ports of the two-way valve can be switched on and off. The fifth valve body 18 includes a fifth first valve port 181 and a fifth second valve port 182. The fifth first valve port 181 is connected to the cleaning outlet 115, and the fifth second valve port 182 is connected to the fifth pipeline 163.

[0068] Among them, when the pump body 13 is in the second state, the fourth first valve port 1611 and the fourth second valve port 1612 are connected, and the fifth first valve port 181 and the fifth second valve port 182 are connected; the first one-way valve 162 is blocked. At this time, in addition to blowing dry the nuclear magnetic paramagnetic tube 20, the gas can also discharge the residual liquid in the cleaning chamber 111 out of the cleaning chamber 111. When the pump body 13 is in the first state, the fifth first valve port 181 and the fifth second valve port 182 are blocked to achieve pressure maintenance. When the pump body 13 is in the third state, the fifth first valve port 181 and the fifth second valve port 182 are blocked to prevent backflow; the first one-way valve 162 is connected. By setting this structure, the automatic discharge of the residual liquid in the cleaning chamber 111 can be achieved, and the pressure balance of the cleaning chamber 111 can be ensured. In addition, the pipeline structure is also optimized and the space utilization rate is improved.

[0069] It should be noted that when the cleaning outlet 115 and the fifth valve body 18 are not set, or the fifth second valve port 182 is not connected to the fifth pipeline 163 but directly connected to the discharge port 102, when the pump body 13 is switched to the second state, the fourth second valve port 1612 and the fourth first valve port 1611 are controlled to be isolated.

[0070] Further, see Figure 6 As shown, the nuclear magnetic paramagnetic tube cleaning equipment described in the present invention, in some embodiments, also includes a manifold box 121, a second one-way valve 143 and a third one-way valve 153.

[0071] Taking into account the cleaning efficiency and cleaning consistency, a plurality of cleaning tubes 12 are usually provided, and the plurality of cleaning tubes 12 are arranged in a straight line so as to clean a plurality of nuclear magnetic paramagnetic tubes 20 at the same time. To this end, a manifold box 121 is provided to achieve convergence and diversion. Specifically, the manifold box 121 is connected to the cleaning box 11; preferably, the manifold box 121 is provided outside the cleaning box 11 to prevent affecting the volume of the cleaning chamber 111. The manifold box 121 is provided with a manifold chamber 1211 and a manifold port 1212, and the manifold port 1212 is connected to the manifold chamber 1211. Among the plurality of cleaning tubes 12, one axial end of each cleaning tube 12 extends into the manifold chamber 1211.

[0072] The second one-way valve 143 is disposed on the first pipeline 14, the inlet of the second one-way valve 143 is connected to the junction port 1212, and the outlet of the second one-way valve 143 is connected to the waste liquid inlet 1422. When the pump body 13 is switched to the first state for negative pressure liquid suction cleaning, the second one-way valve 143 is connected. When the pump body 13 is switched to the other two states, the second one-way valve 143 is blocked.

[0073] The third one-way valve 153 is arranged on the second pipeline 15, the inlet of the third one-way valve 153 is connected to the third second valve port 1522, and the outlet of the third one-way valve 153 is connected to the junction port 1212. When the pump body 13 is switched to the second state and positive pressure air blowing and drying are performed, the third one-way valve 153 is connected. When the pump body 13 is switched to the other two states, the third one-way valve 153 is blocked. By setting this structure, the collection of waste liquid and the diversion of gas can be conveniently realized, thereby ensuring high cleaning efficiency and cleaning consistency, and high reliability.

[0074] Reference Figure 2 and Figure 6 As shown, the nuclear magnetic paramagnetic tube cleaning equipment of the present invention, in some embodiments, further includes a temperature sensor and a heater 154. The temperature sensor is used to detect the gas temperature in the second pipeline 15, and transmit a temperature control signal according to the gas temperature in the second pipeline 15. Exemplarily, the temperature sensor is configured as a thermocouple; it is not shown in the figure. The heater 154 is disposed on the second pipeline 15, and the heater 154 is configured to receive the temperature control signal and adjust the gas temperature in the second pipeline 15. By setting this structure, the gas blown into the nuclear magnetic paramagnetic tube 20 can be heated to further improve the drying efficiency.

[0075] On the other hand, refer to Figure 7 As shown, the present invention also provides a control method for the nuclear magnetic paramagnetic tube cleaning device based on any one of the above embodiments. The control method comprises the following steps:

[0076] The tube state of the cleaning tube 12 is obtained, and the tube state is matched with the target tube state. The target tube state is that the nuclear magnetic paramagnetic tube 20 is arranged on the cleaning tube 12, and the cleaning tube 12 extends into the tube bottom end 21 of the nuclear magnetic paramagnetic tube 20.

[0077] If the tube state matches the target tube state successfully, a cleaning liquid 112 is injected into the cleaning chamber 111 .

[0078] The real-time liquid level of the cleaning liquid 112 is obtained, and the real-time liquid level of the cleaning liquid 112 is matched with the first target liquid level. Those skilled in the art can set the first target liquid level according to actual needs to meet the cleaning needs.

[0079] If the real-time liquid level of the cleaning liquid 112 successfully matches the first target liquid level, the injection is stopped, and the pump body 13 is controlled to enter the first state to generate negative pressure in the cleaning tube 12 to absorb the cleaning liquid 112. At this time, the cleaning liquid 112 flows from the open end 22 to the bottom end 21 of the tube, and cleans the inner wall 23 of the nuclear magnetic paramagnetic tube 20 to become waste liquid. The waste liquid enters the cleaning tube 12 and is discharged from the cleaning chamber 111. The remaining liquid in the cleaning chamber 111 is the residual liquid.

[0080] The real-time liquid level of the residual liquid is obtained, and the real-time liquid level of the residual liquid is matched with the second target liquid level. Those skilled in the art can set the second target liquid level according to actual needs; illustratively, the second target liquid level is set to be separated from the open end 22 of the nuclear magnetic paramagnetic tube 20 and meet a certain distance.

[0081] If the real-time liquid level of the residual liquid successfully matches the second target liquid level, the pump body 13 is controlled to enter the second state to generate positive pressure in the cleaning tube 12 to purge the cleaned nuclear magnetic paramagnetic tube 20 and remove the residue on the inner wall 23 of the tube.

[0082] It should be noted that it is not limited to cleaning until the residual liquid and the nuclear magnetic paramagnetic tube 20 are separated. It is also possible to set the residual liquid to be drained after a certain cleaning time so that the real-time liquid level of the remaining liquid matches the second target liquid level. Preferably, the corresponding liquid level is obtained by the first liquid level meter 106.

[0083] Furthermore, the control method of the present invention, in some embodiments, further comprises the following steps:

[0084] When the pump body 13 is in the first state: the first valve body 141 is controlled to communicate with the first first valve port 1411 and the first second valve port 1412 of the first valve body 141 ; the second valve body 151 is controlled to communicate with the second first valve port 1511 and the second third valve port 1513 of the second valve body 151 .

[0085] When the pump body 13 is in the second state: the first valve body 141 is controlled to communicate with the first first valve port 1411 and the first third valve port 1413 of the first valve body 141; the second valve body 151 is controlled to communicate with the second first valve port 1511 and the second second valve port 1512 of the second valve body 151.

[0086] Furthermore, the control method of the present invention, in some embodiments, further comprises the following steps:

[0087] When the pump body 13 is in the first state: the fourth valve body 161 is controlled to isolate the fourth first valve port 1611 and the fourth second valve port 1612 of the fourth valve body 161 ; the fifth valve body 18 is controlled to isolate the fifth first valve port 181 and the fifth second valve port 182 of the fifth valve body 18 .

[0088] When the pump body 13 is in the second state: control the third valve body 152 so that the third-first valve port 1521 and the third-second valve port 1522 of the third valve body 152 are connected; control the fourth valve body 161 so that the fourth-first valve port 1611 and the fourth-second valve port 1612 of the fourth valve body 161 are connected; control the fifth valve body 18 so that the fifth-first valve port 181 and the fifth-second valve port 182 of the fifth valve body 18 are connected.

[0089] The control method of the present invention, in some embodiments, further comprises the following steps:

[0090] The real-time liquid level of the waste liquid in the waste liquid chamber 1421 is obtained, and the real-time liquid level of the waste liquid is matched with the third target liquid level. Those skilled in the art can set the third target liquid level according to actual needs so as to discharge the waste liquid in time. Preferably, the corresponding liquid level is obtained by the second liquid level meter 1426.

[0091] If the real-time liquid level of the waste liquid successfully matches the third target liquid level, the pump body 13 is controlled to enter the third state to generate positive pressure in the waste liquid chamber 1421 so that the waste liquid is discharged from the waste liquid chamber 1421 through the waste liquid outlet 1423 .

[0092] Furthermore, the control method of the present invention, in some embodiments, further comprises the following steps:

[0093] When the pump body 13 is in the third state: control the first valve body 141 so that the first valve port 1411 and the first third valve port 1413 of the first valve body 141 are connected; control the second valve body 151 so that the second first valve port 1511 and the second second valve port 1512 of the second valve body 151 are connected; control the third valve body 152 so that the third first valve port 1521 and the third third valve port 1523 of the third valve body 152 are connected; control the fourth valve body 161 so that the fourth first valve port 1611 and the fourth second valve port 1612 of the fourth valve body 161 are connected; control the fifth valve body 18 so that the fifth first valve port 181 and the fifth second valve port 182 of the fifth valve body 18 are isolated.

[0094] Working principle:

[0095] After the power switch socket 105 is powered on, ensure that the fourth first valve port 1611 and the fourth second valve port 1612 of the fourth valve body 161 are blocked, and the fifth first valve port 181 and the fifth second valve port 182 of the fifth valve body 18 are blocked. Next, the nuclear magnetic paramagnetic tube 20 with cleaning is inserted into the cleaning chamber 111 from the cleaning hole 113, and the nuclear magnetic paramagnetic tube 20 is sleeved on the cleaning tube 12 one by one, and the cleaning tube 12 is extended to the tube bottom 21 of the nuclear magnetic paramagnetic tube 20.

[0096] After the placement of the nuclear magnetic paramagnetic tube 20 is completed, the cleaning liquid 112 is injected into the cleaning chamber 111 from the injection hole 114, and the cleaning liquid is observed by the first liquid level meter 106. After the real-time liquid level of the cleaning liquid 112 successfully matches the first target liquid level, the injection is stopped, and the corresponding injection hole 114 and the cleaning hole 113 are sealed by the protective cover 104. The pump body 13 is controlled by the control machine 103 to enter the first state to work. At the same time, the first valve body 141 and the second valve body 151 are controlled to make the first valve port 1411 of the first valve body 141 communicate with the first second valve port 1412, and the second first valve port 1511 of the second valve body 151 is communicated with the second third valve port 1513.

[0097] At this time, under the action of the pump body 13, the corresponding fluid moves from the inlet of the pump body 13 to the outlet of the pump body 13, forming a negative pressure. Therefore, a pressure difference is formed inside and outside the nuclear magnetic paramagnetic tube 20, so that the cleaning liquid 112 at the open end 22 of the nuclear magnetic paramagnetic tube 20 is sucked into the tube and flows from the open end 22 of the nuclear magnetic paramagnetic tube 20 to the bottom end 21 of the tube. During the flow process, the cleaning liquid 112 completes the cleaning of the inner wall 23 of the nuclear magnetic paramagnetic tube 20, becomes waste liquid, enters the cleaning tube 12, and is discharged from the cleaning chamber 111. Subsequently, the waste liquid enters the cleaning tube 12, flows through the confluence chamber 1211 and the second one-way valve 143, and enters the waste liquid chamber 1421.

[0098] During the cleaning process, the residual liquid in the cleaning chamber 111 is continuously reduced. When the real-time liquid level of the residual liquid successfully matches the second target liquid level, the control machine 103 controls the pump body 13 to enter the second state. At the same time, the first valve body 141, the second valve body 151, the third valve body 152, the fourth valve body 161 and the fifth valve body 18 are controlled to make the first first valve port 1411 and the first third valve port 1413 of the first valve body 141 communicate, the second first valve port 1511 and the second second valve port 1512 of the second valve body 151 communicate, the third first valve port 1521 and the third second valve port 1522 of the third valve body 152 communicate, the fourth first valve port 1611 and the fourth second valve port 1612 of the fourth valve body 161 communicate, and the fifth first valve port 181 and the fifth second valve port 182 of the fifth valve body 18 communicate.

[0099] At this time, under the action of the pump body 13, the external air enters the pipeline from the first three-valve port 1413, and moves from the inlet of the pump body 13 to the outlet of the pump body 13. During the movement, the heater 154 heats the gas. Finally, the heated gas is ejected from the cleaning pipe 12 to form a positive pressure, and the cleaned nuclear magnetic paramagnetic tube 20 is purged, so that the residue on the inner wall 23 of the nuclear magnetic paramagnetic tube 20 is blown away from the nuclear magnetic paramagnetic tube 20 and discharged from the cleaning outlet 115. After a certain period of time, the air blowing and drying stops, and the cleaning of the nuclear magnetic paramagnetic tube 20 is completed.

[0100] When the second liquid level meter 1426 detects that the real-time liquid level of the waste liquid in the waste liquid chamber 1421 matches the third target liquid level, the control machine 103 controls the pump body 13 to enter the third state. At the same time, the first valve body 141, the second valve body 151, the third valve body 152, the fourth valve body 161 and the fifth valve body 18 are controlled to connect the first valve port 1411 and the first third valve port 1413 of the first valve body 141, connect the second valve port 1511 and the second second valve port 1512 of the second valve body 151, connect the third valve port 1521 and the third third valve port 1523 of the third valve body 152, connect the fourth valve port 1611 and the fourth second valve port 1612 of the fourth valve body 161, and isolate the fifth valve port 181 and the fifth second valve port 182 of the fifth valve body 18.

[0101] At this time, under the action of the pump body 13, external air enters the pipeline from the first three-valve port 1413, and moves from the inlet of the pump body 13 to the outlet of the pump body 13. Finally, the gas flows through the second valve body 151 and the third valve body 152 and enters the waste liquid chamber 1421, so that the waste liquid in the waste liquid chamber 1421 is discharged from the waste liquid outlet 1423.

[0102] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0103] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0104] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nuclear magnetic paramagnetic tube cleaning device, characterized in that: include: A cleaning box, wherein the cleaning box is provided with a cleaning cavity, wherein the cleaning cavity is used to arrange a cleaning liquid and a nuclear magnetic paramagnetic tube; a cleaning tube, at least a portion of which is disposed in the cleaning chamber, and the cleaning tube extends into the bottom end of the nuclear magnetic paramagnetic tube; and A pump body, wherein the pump body is connected to the cleaning tube, and the working state of the pump body includes a first state and a second state. When the pump body is in the first state, the cleaning liquid at least immerses the open end of the nuclear magnetic paramagnetic tube, and the pump body is used to generate negative pressure in the cleaning tube to absorb the cleaning liquid. The cleaning liquid flows from the open end to the bottom end of the tube and cleans the inner wall of the nuclear magnetic paramagnetic tube; when the pump body is in the second state, the pump body is used to generate positive pressure in the cleaning tube to purge the cleaned nuclear magnetic paramagnetic tube and remove residues on the inner wall of the tube.

2. The nuclear magnetic paramagnetic tube cleaning equipment according to claim 1, characterized in that: Also includes: a first valve body, the first valve body being arranged on a first pipeline, the first pipeline being a pipeline connecting the cleaning pipe and the inlet of the pump body, the first valve body comprising a first valve port, a first second valve port and a first third valve port, the first valve port being connected to the inlet of the pump body, the first second valve port being connected to the cleaning pipe, and the first third valve port being connected to external air; as well as a second valve body, the second valve body being arranged on a second pipeline, the second pipeline being a pipeline connecting the cleaning pipe and the outlet of the pump body, the second valve body comprising a second first valve port, a second second valve port and a second third valve port, the second first valve port being connected to the outlet of the pump body, the second second valve port being connected to the cleaning pipe, and the second third valve port being connected to the discharge port; Among them, when the pump body is in the first state, the first valve port is connected to the first second valve port, and the second first valve port is connected to the second third valve port; when the pump body is in the second state, the first valve port is connected to the first third valve port, and the second first valve port is connected to the second second valve port.

3. The nuclear magnetic paramagnetic tube cleaning equipment according to claim 2, characterized in that: Also includes: a third valve body, the third valve body being arranged on the second pipeline, the third valve body comprising a third-first valve port, a third-second valve port and a third-third valve port, the third-first valve port being connected to the second-second valve port, and the third-second valve port being connected to the cleaning pipe; A waste liquid tank, the waste liquid tank is arranged on the first pipeline, the waste liquid tank is provided with a waste liquid chamber, a waste liquid inlet, a waste liquid outlet, a first gas port and a second gas port; the waste liquid chamber is used to store waste liquid, the waste liquid inlet is respectively connected to the cleaning pipe and the waste liquid chamber, the waste liquid outlet is respectively connected to the waste liquid chamber and the discharge port, the first gas port is respectively connected to the first and second valve ports and the waste liquid chamber, and the second gas port is respectively connected to the waste liquid chamber and the third and third valve ports; and a fourth valve body, the fourth valve body being arranged on the third pipeline, the third pipeline being a pipeline connecting the fourth pipeline and the waste liquid outlet, the fourth pipeline being a pipeline connecting the second third valve port and the discharge outlet, the fourth valve body comprising a fourth first valve port and a fourth second valve port, the fourth first valve port being connected to the waste liquid outlet, and the fourth second valve port being connected to the fourth pipeline; The working state of the pump body also includes a third state. When the pump body is in the third state, the pump body is used to generate positive pressure in the waste liquid chamber so that the waste liquid is discharged from the waste liquid chamber through the waste liquid outlet; Among them, when the pump body is in the first state, the fourth-second valve port and the fourth-first valve port are isolated; when the pump body is in the second state, the third-first valve port and the third-second valve port are connected; when the pump body is in the third state, the first-first valve port and the first-third valve port are connected, the second-first valve port and the second-second valve port are connected, the third-first valve port and the third-third valve port are connected, and the fourth-first valve port and the fourth-second valve port are connected.

4. The nuclear magnetic paramagnetic tube cleaning equipment according to claim 3, characterized in that: The third pipeline is provided with a first one-way valve, the inlet of the first one-way valve is connected to the waste liquid outlet, the outlet of the first one-way valve is connected to the fourth valve port, and the pipeline between the first one-way valve and the fourth valve body is the fifth pipeline; The cleaning box is provided with a cleaning outlet, and the cleaning outlet is connected to the cleaning cavity; The nuclear magnetic paramagnetic tube cleaning device further comprises a fifth valve body, the fifth valve body comprises a fifth first valve port and a fifth second valve port, the fifth first valve port is connected to the cleaning outlet, and the fifth second valve port is connected to the fifth pipeline; Among them, when the pump body is in the second state, the fourth-first valve port is connected to the fourth-second valve port, and the fifth-first valve port is connected to the fifth-second valve port; when the pump body is in the first state or the third state, the fifth-first valve port is isolated from the fifth-second valve port.

5. The nuclear magnetic paramagnetic tube cleaning equipment according to claim 3, characterized in that: Also includes: A confluence box, the confluence box is connected to the cleaning box, the confluence box is provided with a confluence cavity and a confluence port, the confluence port is connected to the confluence cavity; a second one-way valve, the second one-way valve being disposed on the first pipeline, the inlet of the second one-way valve being connected to the junction port, and the outlet of the second one-way valve being connected to the waste liquid inlet; and a third one-way valve, the third one-way valve being arranged on the second pipeline, the inlet of the third one-way valve being connected to the third second valve port, and the outlet of the third one-way valve being connected to the junction port; There are multiple cleaning pipes, which are arranged in a row, and one end of each cleaning pipe extends into the confluence cavity.

6. A control method for a nuclear magnetic paramagnetic tube cleaning device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Acquire the tube body state of the cleaning tube, and match the tube body state with the target tube body state; wherein the target tube body state is that the nuclear magnetic paramagnetic tube is arranged on the cleaning tube, and the cleaning tube extends to the tube bottom end of the nuclear magnetic paramagnetic tube; If the tube body state successfully matches the target tube body state, injecting cleaning liquid into the cleaning cavity; Acquiring the real-time liquid level of the cleaning fluid, and matching the real-time liquid level of the cleaning fluid with a first target liquid level; If the real-time liquid level of the cleaning liquid successfully matches the first target liquid level, the injection is stopped, and the pump body is controlled to enter the first state to operate, so that the cleaning tube generates negative pressure to absorb the cleaning liquid, and the cleaning liquid flows from the open end to the bottom end of the tube, and cleans the inner wall of the nuclear magnetic paramagnetic tube to obtain residual liquid; Acquiring the real-time liquid level of the residual liquid, and matching the real-time liquid level of the residual liquid with a second target liquid level; If the real-time liquid level of the residual liquid successfully matches the second target liquid level, the pump body is controlled to enter the second state to generate positive pressure in the cleaning tube to purge the cleaned nuclear magnetic paramagnetic tube and remove residues on the inner wall of the tube.

7. The control method according to claim 6, characterized in that: The following steps are also included: When the pump body is in the first state: Controlling the first valve body so that the first valve port and the first valve port of the first valve body are in communication; Controlling the second valve body so that the second first valve port and the second third valve port of the second valve body are connected; When the pump body is in the second state: Controlling the first valve body so that the first valve port and the first valve port of the first valve body are in communication; The second valve body is controlled to make the second first valve port and the second second valve port of the second valve body communicate with each other.

8. The control method according to claim 7, characterized in that: The following steps are also included: When the pump body is in the first state: controlling the fourth valve body so that the fourth first valve port and the fourth second valve port of the fourth valve body are isolated; controlling the fifth valve body so that the fifth first valve port and the fifth second valve port of the fifth valve body are isolated; When the pump body is in the second state: Controlling the third valve body so that the third first valve port and the third second valve port of the third valve body are in communication; controlling the fourth valve body so that the fourth first valve port and the fourth second valve port of the fourth valve body are in communication; The fifth valve body is controlled so that the fifth first valve port and the fifth second valve port of the fifth valve body are communicated.

9. The control method according to any one of claims 6 to 8, characterized in that: The following steps are also included: Acquiring the real-time liquid level of the waste liquid in the waste liquid chamber, and matching the real-time liquid level of the waste liquid with a third target liquid level; If the real-time liquid level of the waste liquid successfully matches the third target liquid level, the pump body is controlled to enter the third state to operate, so that the waste liquid chamber generates positive pressure, so that the waste liquid is discharged from the waste liquid chamber through the waste liquid outlet.

10. The control method according to claim 9, characterized in that: The following steps are also included: When the pump body is in the third state: Controlling the first valve body so that the first valve port and the first valve port of the first valve body are in communication; Controlling the second valve body so that the second first valve port and the second second valve port of the second valve body are connected; Controlling the third valve body so that the third first valve port and the third third valve port of the third valve body are in communication; controlling the fourth valve body so that the fourth first valve port and the fourth second valve port of the fourth valve body are in communication; The fifth valve body is controlled so that the fifth first valve port and the fifth second valve port of the fifth valve body are isolated.

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