阅读说明：本技术 一种储罐用防雷型机械内容量指示仪 (Lightning protection type mechanical internal capacity indicator for storage tank ) 是由 高海平 郭鹏志 戴连鹏 傅豪 钱邦飞 白兴辉 朱大顺 于 2021-06-28 设计创作，主要内容包括：本发明属于工业储罐监测与防雷安全技术领域,涉及一种储罐用防雷型机械内容量指示仪,包括转动轴、平衡装置、设于储罐内的浮动装置,所述浮动装置通过连接绳与转动轴连接,并对转动轴施加拉力,所述浮动装置的高度随储罐内容量变化而上下移动,并通过连接绳带动所述转动轴转动；所述平衡装置与转动轴连接,用于平衡所述转动轴受力；所述转动轴上设有机械表盘,所述转动轴的角度位移通过机械表盘转变为储罐内容量显示。本发明中的机械内容量指示仪无需外接电源,确保在停电情况下操作者能够了解储罐内介质容量以便应急操作,并通过防爆信号转换器将罐位信息远程传送出去,便于远程监视,防止活塞冲顶或撞底。(The invention belongs to the technical field of monitoring and lightning protection safety of industrial storage tanks, and relates to a lightning protection type mechanical internal volume indicator for a storage tank, which comprises a rotating shaft, a balancing device and a floating device arranged in the storage tank, wherein the floating device is connected with the rotating shaft through a connecting rope and applies tension to the rotating shaft; the balancing device is connected with the rotating shaft and used for balancing the stress of the rotating shaft; and a mechanical dial is arranged on the rotating shaft, and the angular displacement of the rotating shaft is converted into the content display of the storage tank through the mechanical dial. The mechanical internal capacity indicator does not need an external power supply, ensures that an operator can know the capacity of the medium in the storage tank under the condition of power failure so as to facilitate emergency operation, remotely transmits tank position information through the explosion-proof signal converter, facilitates remote monitoring, and prevents a piston from impacting the top or the bottom.)

1. The utility model provides a lightning protection type mechanical internal capacity indicates appearance for storage tank which characterized in that: the device comprises a rotating shaft, a balancing device and a floating device arranged in a storage tank, wherein the floating device is connected with the rotating shaft through a connecting rope and applies pulling force to the rotating shaft, the height of the floating device moves up and down along with the change of the internal volume of the storage tank, and the connecting rope drives the rotating shaft to rotate; the balancing device is connected with the rotating shaft and used for balancing the stress of the rotating shaft; and a mechanical dial is arranged on the rotating shaft, and the angular displacement of the rotating shaft is converted into the content display of the storage tank through the mechanical dial.

2. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the rotating shaft is fixedly connected with a winding drum, one end of the connecting rope is connected with the floating device, and the other end of the connecting rope is connected with the winding drum and wound on the winding drum.

3. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the balance device comprises a heavy hammer, a tension rope and a balance rotating shaft, the balance rotating shaft is connected with the rotating shaft through a gear, one end of the tension rope is fixedly wound on the balance rotating shaft, and the other end of the tension rope is connected with the heavy hammer.

4. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the anti-explosion signal converter is connected with the rotating shaft, acquires an angular displacement signal of the rotating shaft and sends the signal to the receiving end.

5. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 4, wherein: the device also comprises an insulation coupler; the explosion-proof signal converter is connected with the rotating shaft through an insulating coupler.

6. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 4, wherein: the lightning protection device also comprises a lightning protection cover and a lightning protection wire; the rotation shaft and the explosion-proof signal converter are arranged in the lightning protection cover, and the lightning protection cover is connected with the lightning protection wire and is grounded through the lightning protection wire.

7. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the storage tank is also provided with a guide wheel, and the connecting rope bypasses the guide wheel and is connected with the rotating shaft.

8. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the storage tank is a piston type storage tank, and the floating device is a piston in the piston type storage tank.

9. The lightning protection type mechanical internal capacity indicator for the storage tank according to claim 1, wherein: the storage tank is a floating roof tank, and the floating device is a floating roof of the floating roof tank.

Technical Field

The invention belongs to the technical field of industrial storage tank monitoring and lightning protection safety, and relates to a lightning protection type mechanical internal capacity indicator for a storage tank.

Background

Piston tanks typically have a piston below which the required medium is stored and a roof between which air is normally present, the piston moves up and down and the volume of the stored medium changes accordingly, and the operator must constantly be concerned with the piston height (i.e. the internal volume or level) of such variable volume tanks to prevent the piston from crashing or bottoming.

At present, the storage tank content is mostly monitored by adopting an electronic content indicator, and although the electronic content indicator has high detection precision and multiple functions, the electronic content indicator still has the following defects: the electronic internal volume indicator is limited by the service life of electronic elements, is easy to damage and has high maintenance frequency. The electronic content indicator needs a built-in power supply or an external power supply, and under the condition of no power, the storage tank is monitored to be invalid, so that the potential safety hazard is large.

Meanwhile, many large storage tanks are used to store hazardous chemicals, which become a significant source of danger. In thunder and lightning areas, the electronic content indicator is greatly influenced by lightning strikes and is easy to fail, so that the safe operation of the storage tank is difficult to guarantee, and major accidents are easy to cause.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a lightning protection type mechanical internal volume indicator for a storage tank, which solves the problem of detecting the internal volume of the storage tank without a power supply.

In order to achieve the purpose, the invention provides the following technical scheme:

a lightning protection type mechanical internal volume indicator for a storage tank comprises a rotating shaft, a balancing device and a floating device arranged in the storage tank, wherein the floating device is connected with the rotating shaft through a connecting rope and applies pulling force to the rotating shaft, the height of the floating device moves up and down along with the change of the internal volume of the storage tank, and the rotating shaft is driven to rotate through the connecting rope; the balancing device is connected with the rotating shaft and used for balancing the stress of the rotating shaft; and a mechanical dial is arranged on the rotating shaft, and the angular displacement of the rotating shaft is converted into the content display of the storage tank through the mechanical dial.

This basic scheme is through setting up floating installation in the storage tank, changes the rotation angle of axis of rotation into through floating installation with storage tank content volume change, again with the rotation angle of axis of rotation and storage tank content volume through mechanical dial plate conversion and show, this process need not power and electronic component, has realized the storage tank content volume under the electroless condition and has detected.

Further, fixedly connected with reel in the axis of rotation, it is connected with floating installation to connect rope one end, and the other end is connected with the reel to the winding is on the reel.

Further, the balance device comprises a heavy hammer, a tension rope and a balance rotating shaft, the balance rotating shaft is connected with the rotating shaft through a gear, one end of the tension rope is fixedly wound on the balance rotating shaft, and the other end of the tension rope is connected with the heavy hammer; has the advantages that: the gravity of the heavy hammer is transmitted to the rotating shaft through the balance rotating shaft, and the tension of the connecting rope on the rotating shaft is balanced, so that the stress of the rotating shaft is balanced.

And the anti-explosion signal converter is connected with the rotating shaft, acquires an angular displacement signal of the rotating shaft and sends the signal to a receiving end.

Further, the device also comprises an insulation coupling; the explosion-proof signal converter is connected with the rotating shaft through an insulating coupler; has the advantages that: the rotating shaft is connected with the explosion-proof signal converter through the insulating coupler, so that the rotating shaft and the explosion-proof signal converter are insulated, and lightning or induced electricity is prevented from being transmitted to the explosion-proof signal converter through the rotating shaft to damage electronic elements.

Further, the lightning protection device also comprises a lightning protection cover and a lightning protection wire; the rotation shaft and the explosion-proof signal converter are arranged in the lightning protection cover, and the lightning protection cover is connected with the lightning protection wire and is grounded through the lightning protection wire.

Further, the storage tank is also provided with a guide wheel, and the connecting rope bypasses the guide wheel and is connected with the rotating shaft.

Further, the storage tank is a piston type storage tank, and the floating device is a piston in the piston type storage tank.

Further, the storage tank is a floating roof tank, and the floating device is a floating roof of the floating roof tank.

The invention has the beneficial effects that:

1) the mechanical internal capacity indicator does not need an external power supply, ensures that an operator can know the capacity of the medium in the storage tank under the condition of power failure so as to facilitate emergency operation, remotely transmits tank position information through the explosion-proof signal converter, facilitates remote monitoring, and prevents a piston from impacting the top or the bottom.

2) The invention adopts the lightning protection cover and the insulation coupler, thereby effectively preventing lightning stroke or induced electricity from damaging the explosion-proof signal converter.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of an overall lightning protection type mechanical internal capacity indicator according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals: 1. a tank barrel; 2. a corridor; 3. a piston; 4. the tank top; 5. a mechanical internal volume indicator; 5-1, steel wire ropes; 5-2, a guide wheel; 5-3, a transmission shaft lightning protection cover; 5-4, winding drum; 5-5, a rotating shaft; 5-6, insulating the coupling; 5-7, an explosion-proof signal converter; 5-8, balancing the rotating shaft; 5-9, lightning protection lines; 5-10 parts of a tension rope; 5-11, weight dropper; 5-12, a signal converter lightning protection cover.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Example 1

In the embodiment, the storage tank is a piston type storage tank, the floating device is a piston 3 in a storage tank barrel body 1 of the piston type storage tank, and the connecting rope is a steel wire rope 5-1.

Referring to fig. 1 to 2, a lightning protection type mechanical internal volume indicator 5 includes a rotating shaft 5-5, a balancing device, and a piston 3 installed in a piston 3 type storage tank, wherein the piston 3 is connected to the rotating shaft 5-5 through a steel wire rope 5-1 and applies a pulling force to the rotating shaft 5-5; the balancing device is connected with the rotating shaft 5-5 and applies acting force to the rotating shaft 5-5 to enable the rotating shaft 5-5 to be in a stress balance state; the height of the piston 3 moves up and down along with the change of the internal volume of the storage tank and drives the rotating shaft 5-5 to rotate; the rotating shaft 5-5 is provided with a mechanical dial, and the angular displacement of the rotating shaft 5-5 is converted into the storage tank content through the mechanical dial for indication.

In the embodiment, a winding drum 5-4 is arranged on a rotating shaft 5-5, one end of a steel wire rope 5-1 is connected with a piston 3, and the other end of the steel wire rope is connected with the winding drum 5-4 and wound on the winding drum 5-4; the winding drum 5-4 is fixedly connected with the rotating shaft 5-5.

In this embodiment, the balancing device comprises a heavy hammer 5-11, a tension rope 5-10 and a balancing rotating shaft 5-8, wherein one end of the tension rope 5-10 is fixedly wound on the balancing rotating shaft 5-8, and the other end is connected with the heavy hammer 5-11; the balance rotating shaft 5-8 is connected with the rotating shaft 5-5 through a gear, the gravity of the heavy hammer 5-11 is transmitted to the rotating shaft 5-5 through the balance rotating shaft 5-8, and the tension of the steel wire rope 5-1 on the rotating shaft 5-5 is balanced, so that the stress of the rotating shaft 5-5 is balanced.

In the embodiment, the explosion-proof signal converter further comprises an insulation coupler 5-6 and an explosion-proof signal converter 5-7 with a remote transmission function, wherein the explosion-proof signal converter 5-7 is connected with the rotating shaft 5-5 through the insulation coupler 5-6, obtains an angular displacement signal of the rotating shaft 5-5 and sends the signal to a receiving end; the rotating shaft 5-5 and the explosion-proof signal converter 5-7 are connected by an insulating coupling 5-6, so that the rotating shaft 5-5 and the explosion-proof signal converter are insulated, and the rotating shaft 5-5 is prevented from transmitting thunder or induction electricity to the explosion-proof signal converter 5-7 to damage electronic elements.

In the embodiment, the lightning protection device also comprises a lightning protection cover and 5-9 lightning protection wires; the lightning protection cover comprises a transmission shaft lightning protection cover 5-3 and a signal converter lightning protection cover 5-12, wherein the rotating shaft 5-5 and the explosion-proof signal converter 5-7 are installed in the lightning protection cover, and the lightning protection cover is installed on the corridor 2 of the storage tank and is grounded through a lightning protection line 5-9.

In the embodiment, the tank top 4 of the storage tank is also provided with a guide wheel 5-2, and the steel wire rope 5-1 bypasses the guide wheel 5-2 and is fixedly connected with the winding drum 5-4.

Example 2

This example differs from example 1 in that: in the embodiment, the storage tank is a floating roof tank; the floating device is a floating roof in the floating roof tank and floats on the upper surface of the storage medium in the storage tank; one end of a steel wire rope 5-1 is connected to the floating roof, and the other end of the steel wire rope rounds a guide wheel 5-2 arranged at the top of the storage tank and is connected to a winding drum 5-4. Other structures and connection relations are the same as those of embodiment 1.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.