Static electricity eliminating device of liquid scintillation energy disperse spectroscopy

Abstract

The utility model relates to the technical field of static electricity removing equipment, in particular to a static electricity removing device of a liquid scintillation energy disperse spectroscopy, which comprises an instrument body, and a sample frame for loading sample bottles is arranged on the instrument body. The instrument body is also provided with an ion fan; the ion fan can generate air ions with positive charges and negative charges and blow the air ions to the sample bottle. In the process of detecting an object to be detected, the ion fan is started to generate air ions and blow out the air ions, so that the air ions exist around a sample bottle in the instrument, and when electrostatic charges are generated around a top rod or a guide sleeve or the sample bottle and the like due to friction, the air ions are blown out. The air ions can be neutralized with the electrostatic charges, so that overspread impurities and dust particles in the surrounding environment are prevented from being attached to the surface of the ejector rod or the guide sleeve or the sample bottle and other parts, and the safety and stability of detecting the to-be-detected object can be better improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to static removal equipment technical field, concretely relates to a liquid scintillation energy spectrum appearance's static electricity removing device. BACKGROUND

[0002] In the nuclear industry field, it is necessary to monitor the waste water and dust generated in the nuclear application process to prevent possible environmental pollution. Liquid scintillation energy spectrum analyzer is one of the important equipment for quantitative measurement of radioactivity.

[0003] During the radioactivity measurement process of the liquid scintillation energy spectrum analyzer, the sample holder loaded with the sample bottle moves through the synchronous belt module, friction occurs between the sample holder and the synchronous belt module and the installation platform, and static electricity is generated. The static charge will adsorb the impurity dust particles scattered in the surrounding environment, adsorb the impurity dust particles on the outer wall of the sample bottle, and cause the impurity dust particles to be stuck in the gap of the sample bottle along the guide sleeve movement path during the lifting of the sample bottle, so that the sample bottle is subjected to excessive stress, which may cause the sample bottle to break, and the broken sample bottle will cause the measured liquid sample to spill in the instrument, resulting in damage to the measuring instrument and safety accidents. During the descending process of the sample bottle, if the impurity dust particles adsorbed by the static charge are left on the sample bottle, the residual impurity dust particles adhered to the inner wall of the guide sleeve will form a squeezing force in the gap of the guide sleeve path during the movement of the sample bottle along the guide sleeve, which may cause the sample bottle to not fall smoothly, resulting in the risk of bottle sticking and causing program sensing error and equipment downtime.

[0004] The generation of static charge not only interferes with the background count of the instrument, but also adsorbs the impurity dust particles scattered in the surrounding environment, and carries the adsorbed impurity dust particles to the instrument internal precision transmission components such as the sample bottle lifting rod, the guide sleeve and the sample bottle itself, and then spreads the impurity dust particles in the lifting path, increases the risk of sample transmission bottle sticking, and affects the reliability and service life of the instrument. UTILITY MODEL CONTENTS

[0005] In view of the above problems existing in the prior art, the utility model provides a liquid scintillation energy spectrum analyzer static electricity removing device.

[0006] In order to solve the above technical problems, the utility model solves the problems through the following technical schemes:

[0007] A liquid scintillation energy spectrum analyzer static electricity removing device, comprising an instrument body, the instrument body is provided with a sample holder loaded with a sample bottle; the instrument body is also provided with an ion fan;

[0008] The ion fan can generate air ions with positive and negative charges and blow the air ions to the sample bottle;

[0009] The connecting plate is fixedly installed on the instrument body, and the ion fan is fixedly installed on the connecting plate.

[0010] Preferably, the connecting plate is fixedly connected with the instrument body and the ion fan by means of bolts or clamping or bonding or welding.

[0011] Preferably, a damping pad is arranged on the ion fan and / or the instrument body; when the ion fan is installed on the instrument body, the ion fan and the instrument body sandwich the damping pad.

[0012] Preferably, a ventilation cover is arranged on the ion fan; a first end of the ventilation cover is arranged on an air outlet of the ion fan, and a second end extends towards the sample bottle to guide the air ions to the sample bottle.

[0013] Preferably, a sealing ring is arranged on the first end of the ion fan and / or the ventilation cover; when the first end of the ventilation cover is installed on the ion fan, the sealing ring can seal a gap between the first end of the ventilation cover and the ion fan.

[0014] Preferably, the ion fan is arranged at a guide sleeve on the instrument body.

[0015] Preferably, the ventilation cover adopts a funnel-shaped taper.

[0016] The utility model at least has following beneficial effects:

[0017] When detecting the to-be-detected object, the ion fan is started, so that the ion fan can generate air ions and blow out the air ions, and thus air ions exist around the sample conveying part in the instrument, when static charges are generated around the top rod or the guide sleeve or the sample bottle due to friction, the air ions can neutralize the static charges, and thus the impurity dust particles scattered in the surrounding environment are prevented from adhering to the surface of the top rod or the guide sleeve or the sample bottle, so that the liquid scintillation spectrometer can preferably improve the safety and stability of detecting the to-be-detected object. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The drawings show the schematic diagram of the ion fan, the first connecting plate, the second connecting plate, the damping pad, the sealing ring and the ventilation cover in some embodiments of the application;

[0019] Figure 2A schematic diagram of a liquid scintillation spectrometer provided with an ion fan in some embodiments of the present application is shown.

[0020] The parts referred to by the reference numerals in the drawings are as follows:

[0021] 10, first position; 20, second position; 30, third position; 100, ejector rod mechanism; 110, motor-driven screw module; 120, ejector rod; 200, synchronous belt module; 300, horizontal platform; 310, first connecting plate; 320, second connecting plate; 400, sample holder; 410, sample bottle; 500, guide sleeve; 600, ion fan; 601, air outlet; 610, shock pad; 620, ventilation cover; 630, sealing ring. DETAILED DESCRIPTION

[0022] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings and embodiments. It should be understood that the embodiments are merely an explanation of the present application and not a limitation.

[0023] As shown in Figure 1 and Figure 2 The present embodiment provides a liquid scintillation spectrometer, which is referred to as an instrument body in the present embodiment. The instrument body includes an ejector rod mechanism 100, a synchronous belt module 200, a horizontal platform 300, a sample holder 400, and a guide sleeve 500. The horizontal platform 300 is used to carry the synchronous belt module 200, the ejector rod mechanism 100, and the sample holder 400, etc. The sample holder 400 is used to carry a sample bottle 410 containing a to-be-tested object. The synchronous belt module 200 is used to transfer the sample holder 400 carrying the sample bottle 410 from a first position 10 to a second position 20. The ejector rod mechanism 100 is driven by a motor-driven screw module 110 to move an ejector rod 120 vertically. When the ejector rod 120 is lifted upward, the sample bottle 410 at the second position 20 is lifted from the second position 20 to a third position 30. The guide sleeve 500 is a tubular flange sleeve. The sample bottle 410 moves along the inner wall of the guide sleeve 500 during the lifting process by the ejector rod 120.

[0024] Further, an ion fan 600 is also provided on the instrument body, which can be provided on the ejector rod mechanism 100, the synchronous belt module 200, the horizontal platform 300, the sample holder 400, or the guide sleeve 500. However, in order not to affect the normal use of the ejector rod mechanism 100, the synchronous belt module 200, the sample holder 400, and the guide sleeve 500, the ion fan 600 is provided on the horizontal platform 300.

[0025] It can be understood that the ion fan 600 can generate air ions with positive and negative charges through high-voltage tip discharge, and meanwhile, the ion fan 600 is internally provided with a fan, so that the generated air ions can be blown out from the inside of the ion fan 600.

[0026] In the embodiment, the ion fan 600 is installed on the horizontal platform 300, and during the detection of the to-be-detected object, the ion fan 600 is started to generate air ions and blow them out, so that air ions exist in the instrument, and when static charges are generated around the top rod 120, the guide sleeve 500 or the sample bottle 410 due to friction, the air ions can neutralize the static charges, so that the impurity dust particles in the surrounding environment are prevented from adhering to the surface of the top rod 120, the guide sleeve 500 or the sample bottle 410, so that the safety and stability of the detection of the to-be-detected object can be improved.

[0027] The horizontal platform 300 is fixedly provided with a connecting plate.

[0028] Further, the connecting plate includes a first connecting plate 310 and a second connecting plate 320, and the ion fan 600 is fixedly connected with the first connecting plate 310 and the second connecting plate 320, so as to realize the fixed installation of the ion fan 600 on the horizontal platform 300.

[0029] Further, the first connecting plate 310 and the second connecting plate 320 are both in L shape, and the first connecting plate 310 and the second connecting plate 320 are fixedly connected with the left and right sides of the ion fan 600, so as to improve the stability of the fixed installation of the ion fan 600 on the horizontal platform 300.

[0030] In some embodiments, the first connecting plate 310 is fixedly connected with the horizontal platform 300 by means of bolts, clamps, adhesives or welding, and the first connecting plate 310 is also fixedly connected with the ion fan 600 by means of bolts, clamps, adhesives or welding. Similarly, the second connecting plate 320 is fixedly connected with the horizontal platform 300 by means of bolts, clamps, adhesives or welding, and the second connecting plate 320 is also fixedly connected with the ion fan 600 by means of bolts, clamps, adhesives or welding.

[0031] In some embodiments, a shock-absorbing pad 610 is arranged between the ion fan 600 and the horizontal platform 300, and when the ion fan 600 is fixedly installed on the horizontal platform 300 by means of the first connecting plate 310 and the second connecting plate 320, the ion fan 600 and the horizontal platform 300 can clamp the shock-absorbing pad 610.

[0032] Further, the shock pad 610 can be fixedly arranged on the ion fan 600 or on the horizontal platform 300, as long as the shock pad 610 can be arranged between the ion fan 600 and the horizontal platform 300 when the ion fan 600 is mounted on the horizontal platform 300, and no special limitation is made. Further, the shock pad 610 can be fixedly mounted on the ion fan 600 and the horizontal platform 300 by means of bolts or clamping or adhesion, and no special limitation is made.

[0033] It should be noted that the shock pad 610 is a soft shock pad made of ethylene-propylene-diene rubber material, which can effectively reduce the vibration generated when the fan in the ion fan 600 rotates, thereby avoiding affecting the measurement results of the measured object.

[0034] In some embodiments, a ventilation cover 620 is arranged on the ion fan 600, a first end of the ventilation cover 620 is fixedly connected to the ion fan 600 by bolts, and the first end of the ventilation cover 620 is arranged as a protective cover for the air outlet 601 of the ion fan 600. The second end of the ventilation cover 620 extends towards the direction of the sample bottle 410, so that when the ion fan 600 blows out air ions, the air ions can enter the ventilation cover 620 and blow towards the sample bottle 410 through the ventilation cover 620, thereby preferably removing the static charge around the sample bottle 410.

[0035] It can be understood that the ventilation cover 620 can guide the flow of air ions blown out by the ion fan 600, so that the air ions flow purposefully towards the sample bottle 410, thereby improving the effect of removing the static charge around the sample bottle 410, and thereby preferably avoiding the attachment of impurity dust particles dispersed in the surrounding environment to the sample bottle 410. At the same time, the ventilation cover 620 can surround the air ions blown out by the ion fan 600, so that the air ions will not spread freely, thereby preferably ensuring the concentration of the air ions, so that the air ions blown towards the sample bottle 410 are sufficient to neutralize the static charge around the sample bottle 410, and preferably avoid the attachment of impurity dust particles.

[0036] Further, the second end of the ventilation cover 620 can be arranged in a movable form, so that the second end of the ventilation cover 620 can be detached.

[0037] In some embodiments, a sealing ring 630 is arranged between the ion fan 600 and the ventilation cover 620, and can seal the gap between the first end of the ventilation cover 620 and the ion fan 600 after the first end of the ventilation cover 620 is fixedly installed on the ion fan 600. Thus, when the ion fan 600 blows air ions, the air ions will not overflow from the gap between the first end of the ventilation cover 620 and the ion fan 600, and the concentration of air ions in the ventilation cover 620 can be better guaranteed. Thus, the ventilation cover 620 can guide all the air ions to the surroundings of the sample bottle 410, and the removal effect of electrostatic charges around the sample bottle 410 can be better.

[0038] Further, in the embodiment, the sealing ring 630 is made of EPDM material.

[0039] It should be noted that the sealing ring 630 can be fixedly arranged on the ion fan 600 or the first end of the ventilation cover 620, as long as the sealing ring 630 can seal the gap between the first end of the ventilation cover 620 and the ion fan 600 after the first end of the ventilation cover 620 is connected to the ion fan 600, and no special limitation is made.

[0040] In some embodiments, when the first end of the ventilation cover 620 is fixedly installed on the ion fan 600, the first end of the ventilation cover 620 can be clamped with the sealing ring 630 in cooperation with the ion fan 600. Thus, on one hand, the sealing ring 630 can seal the gap between the first end of the ventilation cover 620 and the ion fan 600, and on the other hand, the sealing ring 630 can buffer and eliminate the vibration of the ion fan 600 to some extent. Thus, the vibration of the ion fan 600 can be effectively reduced, the state of the ventilation cover 620 can be more stable, and the use can be safer.

[0041] In some embodiments, in order to better eliminate electrostatic charges at the guide sleeve 500 and avoid impurity dust particles in the gap along the movement path of the sample bottle 410, the ion fan 600 is arranged at a position close to the guide sleeve 500 on the horizontal platform 300, so that the distance between the ion fan 600 and the guide sleeve 500 is closer. When the sample bottle 410 moves between the second position 20 and the third position 30, the ion fan 600 can guide air ions to the surroundings of the sample bottle 410 through the ventilation cover 620, so that the air ions are also around the guide sleeve 500. Thus, the electrostatic charges around the sample bottle 410 and the guide sleeve 500 can be better removed, and the safety and reliability of conveying the sample bottle 410 can be improved.

[0042] In summary, the above only for the preferred embodiments of the present application, any changes and modifications made in accordance with the present application patent scope, should be the scope of the present application patent cover.

Claims

1. A liquid scintillation energy spectrometer destaticizer, characterized by: The instrument comprises an instrument body, a sample rack for loading sample bottles is arranged on the instrument body, and an ion fan is further arranged on the instrument body. The ion fan can generate air ions with positive and negative charges and blow the air ions to the sample bottles. A connecting plate is fixedly installed on the instrument body, and the ion fan is fixedly installed on the connecting plate.

2. The liquid scintillation spectrometer destaticizer of claim 1 wherein: The connecting plate is fixedly connected with the instrument body and the ion fan by means of bolts or clamping or bonding or welding.

3. The liquid scintillation spectrometer destaticizer of claim 1 wherein: A shock-absorbing pad is arranged on the ion fan and / or the instrument body, and the ion fan and the instrument body sandwich the shock-absorbing pad when the ion fan is installed on the instrument body.

4. The liquid scintillation spectrometer destaticizer of claim 1 wherein: A ventilation cover is arranged on the ion fan, a first end cover of the ventilation cover is arranged on an air outlet of the ion fan, and a second end of the ventilation cover extends towards the sample bottles to guide the air ions to the sample bottles.

5. The liquid scintillation spectrometer destaticizer of claim 4 wherein: A sealing ring is arranged on the ion fan and / or the first end of the ventilation cover, and the sealing ring can seal a gap between the first end of the ventilation cover and the ion fan when the first end of the ventilation cover is installed on the ion fan.

6. The liquid scintillation spectrometer destaticizer of claim 4 wherein: The ion fan is arranged at a guide sleeve on the instrument body.

7. The liquid scintillation spectrometer destaticizer of claim 4 wherein: The ventilation cover adopts a funnel-shaped taper.

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