阅读说明：本技术 可升降的施工系统及其操作方法 (Liftable construction system and operation method thereof ) 是由 朱明毅 冯德兴 李小华 王连培 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种可升降的施工系统及其操作方法,该施工系统包含笼箱体、用于调节一对象的水平度的测量单元及一支撑结构,该支撑结构支撑固定了该测量单元的空间至少容纳该测量单元,该支撑结构的底端贯穿所述笼箱体的底面与所述对象相接触。借助本发明提供的整个施工系统和方法,整个操作过程中,笼箱体不会悬挂在操作人员的头顶上方,大大降低了安全风险。操作人员无需特地离开笼箱体,就可以进行各类操作作业,大大提高了工作效率。(The invention discloses a liftable construction system and an operation method thereof, wherein the construction system comprises a cage body, a measuring unit for adjusting the levelness of an object and a supporting structure, the supporting structure supports and fixes the measuring unit, the space at least contains the measuring unit, and the bottom end of the supporting structure penetrates through the bottom surface of the cage body and is contacted with the object. By means of the whole construction system and method provided by the invention, the cage body cannot be suspended above the top of the head of an operator in the whole operation process, so that the safety risk is greatly reduced. The cage box body is not required to be specially left by an operator, various operation operations can be carried out, and the working efficiency is greatly improved.)

1. The utility model provides a liftable construction system, its characterized in that, this construction system disposes cage box, the measuring unit and a bearing structure that are used for adjusting the levelness of an object, and this measuring unit is fixed in this bearing structure support, and this measuring unit is held at least in the space of this cage box, and this bearing structure's bottom is run through the bottom surface of cage box with the object contacts.

2. The construction system according to claim 1, wherein the cage body is provided at a bottom end thereof with at least one through hole, and a bottom end of the support structure is brought into contact with the object through the through hole.

3. The construction system according to claim 1, wherein the measuring unit is provided with a laser measuring portion that emits a laser level or a laser beam.

4. The construction system according to claim 3, wherein the laser measuring part is a laser swinger.

5. The construction system of claim 1, wherein the cage body moves vertically and the cage body houses a measuring unit and/or a constructor.

6. The construction system of claim 1, further comprising a real-time transmission device that transmits the operation process to a recipient in real-time.

7. The construction system of claim 1, wherein the object is a distribution structure or a fill material.

8. The construction system of claim 1, wherein the cage body is raised or lowered along with the object.

9. A method of deploying a distribution structure into a tower for horizontal placement using the construction system of any of claims 1 to 8, comprising the steps of:

(1) lowering the dispensing structure and cage to a designated position;

(2) connecting a support structure to the bottom end of the cage body through the through hole, wherein the measuring unit is mounted on the support structure;

(3) and starting a laser measuring part, forming a laser horizontal plane in the tower wall, selecting a plurality of designated positions on the surface of the distribution structure or the laser horizontal plane, respectively reading each height difference value of each designated position, and judging whether the distribution structure is horizontal and the deflection of the distribution structure according to each height difference value.

10. The method of claim 9, wherein in step (3), the vertical height from a point on the laser horizontal plane is measured to the surface of the distribution structure, the vertical height from other designated positions to the surface of the distribution structure is measured, and the levelness of the distribution structure is adjusted according to the height difference.

Technical Field

The invention belongs to the field of air separation engineering, relates to a construction system capable of ascending and descending and an operation method thereof, and particularly relates to a construction system for configuring a distribution structure into a tower container and a corresponding operation method.

Background

The liquefied air can be separated into its various components using a mass transfer column such as a rectification column or an air decomposition column, which is commonly used in the art as a cylindrical vessel having a shell extending along a longitudinal axis and enclosing an interior space of the column, with packing and distribution structures (also referred to as "distributors") disposed in sections within the interior space, with a tray-like distribution structure disposed in the column above the packing. Typical distributors include a plurality of passage slots that allow ascending vapor from packing directly below the distributor to flow upwardly between adjacent slots and through a tray-like distributor attached by means of supports to one or more weld tabs extending from the inner surface of the column wall. Chinese patent publication No. CN105579126A discloses a column comprising a liquid distributor and mass transfer trays made of angular profiles, wherein the structure of a typical mass transfer column is disclosed.

When vertically loading the distributor into the tower, the conventional practice generally comprises the following steps: in a first step, as shown in fig. 1a and 1b, the operator is seated in a common basket, which cannot accommodate both the operator and the operating tools. The elevator lifts the distributor and the basket, brings them into the given installation position in the tower, places the distributor on the corresponding support, the operator remains inside the tower and the basket rises. Secondly, the elevator transports operating tools (including a leveling tool, a welding tool, a scale and the like) to an operator in the tower by using the cable and the hanging basket, the elevator moves the hanging basket upwards by using the cable, and the hanging basket is positioned at the top of the head of the operator; as shown in fig. 1c, in the tower, the operator uses the leveling tool to detect the levelness of the dispenser, and after adjusting and confirming the required levelness, the operator performs welding and reinforcing of other parts of the dispenser, such as angle bars. And thirdly, as shown in figures 1d and 1e, a quality inspector takes the basket to arrive at a distributor in the tower, the levelness and the assembly condition of the distributor are checked, and the lifter moves the basket upwards, so that the basket is still positioned at the top of the operator. Fourthly, as shown in figure 1f, the quality inspector carries out inspection; as shown in fig. 1g, the elevator again lowers the basket; after the test is completed, the test basket is lifted out of the tower, as shown in figure 1 h. Fifthly, as shown in fig. 1i, the operator finally completes the welding and reinforcing of the angle section bar; as shown in fig. 1j and 1k, the elevator lowers the basket and the operator takes the operating tool with the basket out of the tower. The operation mode needs to lead the hanging basket to reciprocate up and down for many times, so that the time of one to two days is usually needed for completing the installation of one distributor, and the efficiency is lower; and the hanging flower basket needs often to be located operating personnel's overhead, has very big potential safety hazard.

In view of the above, it is an urgent task for those skilled in the art to devise an improved construction system and corresponding operation method for deploying a distribution structure and the like into a tower container to overcome the above-mentioned drawbacks and deficiencies of the prior art.

Disclosure of Invention

It is an object of the present invention to provide an improved construction system and method for deploying a distribution structure into a tower vessel and adjusting the levelness thereof.

A first aspect of the present invention provides a liftable construction system for fitting an object, including but not limited to a distribution structure or a filling material or the like, into a tower container so that it lies horizontally. The construction system is provided with a cage body, a measuring unit for adjusting the levelness of an object and a supporting structure, the measuring unit is supported and fixed by the supporting structure, the measuring unit is at least contained in the space of the cage body, and the bottom end of the supporting structure penetrates through the bottom surface of the cage body and is in contact with the object.

Further, the bottom end of the cage body is provided with at least one through hole, and the bottom end of the supporting structure passes through the through holes to be in contact with the object. These through holes may extend through the bottom end plane of the cage body. Specifically, the bottom end of the cage body can be provided with a plurality of through holes around the center thereof in the specification of the support structure, and the through holes form the installation positions of the corresponding support structures. For example, if the support structure is a tripod, the number of through holes may be three. The measuring unit is thus easy to erect and carry and easy to mount and dismount.

Further, the measuring unit is provided with a laser measuring portion that emits a laser level or laser beam. The measuring unit may comprise a device such as a plane scanner or a Total Station (Total Station) which can emit a laser level or a laser beam for alignment, the laser measuring part being fixed to the tripod and being positioned in a stable, near-horizontal plane, the receiving part receiving the laser position for leveling.

Further, the measuring unit is also provided with a measuring rod, and the receiving part is detachably arranged on the measuring rod. An exemplary metering rod may be a ruler or plumb line.

Further, the cage is moved vertically and houses a measuring unit and/or a constructor.

Further, the construction system also comprises a real-time transmission device which transmits the operation process to a receiving party in real time.

Further, the laser measuring part is a laser swinger.

Further, the construction system further includes a lifting unit including a cable and a lifting control module that causes the cage body to move vertically. The cable is suspended from the cage body, and the lowering depth of the cable is changed under the control of the lifting control module, so that the cage body moves along the extending direction of the wall of the tower container, and the cage body is far away from or towards the object (such as a distributor).

Further, the cage body is configured to transport the operating tool and the operator simultaneously.

Further, the object is a distribution structure or a filling.

Further, the cage body is lifted or lowered together with the object.

Further, the column vessel has a height of 30m to 70 m. The column vessel is typically of cylindrical geometry and has a circular or near-circular (e.g. oval) cross-section. The column vessel is preferably interconnected in sections of the column by a plurality of material connections.

A second aspect of the present invention provides a method of deploying a distribution structure into a tower container for horizontal placement using the construction system of the first aspect, comprising the steps of:

(1) lowering the dispensing structure and cage to a designated position;

(2) connecting a support structure to the bottom end of the cage body through a through hole, wherein the measuring unit is mounted on the support structure;

(3) and starting a laser measuring part, forming a laser horizontal plane in the tower wall, selecting a plurality of designated positions on the surface of the distribution structure or the laser horizontal plane, respectively reading each height difference value of each designated position, and judging whether the distribution structure is horizontal and the deflection of the distribution structure according to each height difference value.

Further, in the step (3), a certain point on the laser horizontal plane is taken as a starting point, the vertical height from the starting point to the surface of the distribution structure is measured, then the vertical heights from the plurality of designated positions to the surface of the distribution structure are respectively measured, and the levelness of the distribution structure is adjusted according to each height difference. For example, welding of angle profiles can be carried out until the surface of the distribution structure is substantially flat.

Further, throughout the method, the operator performs the demonstration of the operation process by a real-time transmission device (including but not limited to a mobile phone, a cellular phone, a smart phone, a tablet computer, a wearable device, a wireless transmission device such as a Personal Digital Assistant (PDA)), and transmits the demonstration to a receiving party (e.g., a quality inspection department or a person). Therefore, the quality inspection department can remotely check the whole process of leveling and fixing the distributor by operators without entering the tower, and the method is safe and efficient. When the operation personnel carry out leveling and the welding of angle section bar, can shoot real-time image, return the surveillance center, the completion of operation is confirmed in the surveillance center remote, and operation personnel can leave in the tower.

Compared with the prior art, the technical scheme provided by the invention has the following advantages:

1. by means of the whole construction system and method provided by the invention, in the whole operation process, the cage body only needs to be lifted once and cannot be suspended above the top of the head of an operator all the time, so that the safety risk is greatly reduced.

2. The position relation among the cage body, the distribution structure and the operator can ensure that the operator can carry out various operation operations without specially leaving the cage body.

3. The special design of the cage body does not hinder the lifting of the lifting unit, enough space is reserved for necessary operation, and the efficiency of leveling and spot welding of the distributor by an operator can be improved.

4. By using the construction system and the method of the invention, the up-and-down moving times of the elevator are greatly reduced, and the required working hours are shortened.

Drawings

The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.

FIGS. 1a to 1k are schematic diagrams illustrating the operation of a distributor installed vertically in a tower according to the prior art.

Fig. 2a to 2e are schematic views illustrating the operation of assembling the distributor into the tower according to the embodiment of the present invention.

Fig. 3 is a schematic diagram of a cage body according to an embodiment of the present invention.

In the figure: 301 is a cage body.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.

In the following description of the embodiments, for purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "axial", "radial", and the like are to be construed as words of convenience and are not to be construed as limiting terms.

In the following description of the specific embodiments, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not intended to limit the temporal order, quantity, or importance, but are not intended to indicate or imply relative importance or implicitly indicate the number of technical features indicated, but merely to distinguish one technical feature from another technical feature in the present disclosure. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise. Similarly, the appearances of the phrases "a" or "an" in various places herein are not necessarily all referring to the same quantity, but rather to the same quantity, and are intended to cover all technical features not previously described. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and embodiments may include a single feature or a plurality of features. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as being preferred or advantageous may be combined with any other feature indicated as being preferred or advantageous.

Description of the terms

As used herein, "bin", "cage bin" is used herein for descriptive purposes and may be any kind of bin or container for directly holding one or more units during transport, may be open, and may include by way of example cargo bins and others that may generally have an approximately hexahedral shape.

As used herein, "distributor" and "distribution structure" have the same meaning and may be used interchangeably, such as a packed column, to distribute liquid or gas uniformly over the top of the packing layer, effectively reducing the amplification effect caused by poor distribution of liquid, and thus better performing the packing efficiency.

As used herein, the inner contour of a "tower", "tower vessel" may be of a shape well known in the art, preferably having a circular geometry, alternatively the inner contour can also have a different contour than a circular geometry, for example an elliptical contour or a square contour.

As used herein, "horizontal", "horizontally arranged" may be understood as the central axis of an object having an inclination of no more than 10 °, preferably no more than 5 °, more preferably no more than 3 °, most preferably no more than 2 ° with respect to the horizontal.

The term "removably" means that one component can be received by and removed from another component without any of the components being deformed or damaged, and is to be understood as one component that is designed to be relatively easily removed and to prevent damage or possible disruption of the connection of the connected portions during the removal process.

The term "support structure" is intended to include any and all mounts, housings, holders or bases. As used herein, the term "support structure" may include any portion of an object used to support a portion of a supported member, and thus the support structure itself may be another component. A tripod may be used as an exemplary support structure of the present invention.

In the embodiment of the invention, a laser swinger with the model number of Leica Rugby 620 is adopted, and the parameters are as follows:

the application range is as follows: 800m/2600 ft.

Automatic leveling precision (at 25 ℃): 2.2 mm at about 30 meters (+ -3/32 "at 100 feet).

Automatic leveling range: 5 ℃ C.

Rotation rate: 10 rps.

In one embodiment of the invention, in the process of installing the distributor, the distributor and an operator are firstly sent into a vertically placed tower container body through a lifter, the operator checks the levelness of the distributor in the tower by using a measuring unit, the required error is less than or equal to 2mm, and the distributor is fixed through angle section bar spot welding after the distributor is confirmed to be qualified. In the whole process, an operator utilizes the wireless transmission equipment to demonstrate the operation process, and after the quality inspection personnel confirm that the levelness adjustment is qualified, the operator leaves the tower.

Illustratively, the step of the operator adjusting the levelness with the measuring unit may include:

the novel sweeping machine is characterized in that a tripod is installed at first, the bottom end of the tripod is placed stably, and the sweeping machine is arranged on the tripod and is positioned on a stable horizontal plane. The receiver of the swinger is placed on a scale, and the laser measuring part and the receiver thereof are opened. If the planar height of the object has a reference target, the base of the scale can be fixed to the known reference target as the determined planar height, and the height of the receiver on the scale is adjusted until the planar position or the position of the center line of the receiver is indicated.

The scale with the receiver mounted thereon is then placed at a plurality of designated positions for testing. Taking the distributor as an example, generally, 8 to 12 points on the plane of the distributor can be selected as the designated positions, and the corresponding height difference can be obtained through the reading of each point (i.e. the value of the laser coil/line scanned to the receiver), so as to judge the levelness of the distributor. If the difference between each point is 0mm, the absolute horizontal state is obtained. The operator can make flatness adjustments accordingly.

In the embodiment, the cage body is designed to accommodate the required number of operators and operating tools, as shown in fig. 3. The cage 301 is open around enough to allow an operator to pass through. Cage box still designs has fixed subregion, when holding operating means, strengthens the security that operating personnel stood. As shown in fig. 2a and 2b, the elevator drives the cables to move the distributor and cage together down to the desired mounting position, with the cage no longer moving. As shown in fig. 2c and 2d, the tripod of the swinger is erected on the plane of the distributor through the through hole, and according to the steps, an operator uses the swinger and the ruler to level, so that the welding of the angle section is completed, and the position of the distributor is ensured to be horizontal. During the period, the operator holds the real-time transmission equipment by hand to send the reading and welding condition of the sweep level to the quality controller on the ground, and after the quality controller confirms that the installation is in place, the operator carries the tool back into the cage box as shown in figure 2e, and the elevator drives the cable to move up to the ground to complete the installation of the distributor. The real-time transmission device can be any mobile device, tablet and the like with a real-time communication function. The whole process only needs about half a day, the working hours are greatly shortened, and the cage box can not be suspended at the top of the head of an operator and accords with the regulations of safety standards.

Taking an air separation tower with a diameter of 6 meters as an example, the measurement distance of the Leica laser swinger adopted in the embodiment is 3 meters. The automatic leveling range of the setting swinger is +/-5 degrees, if the initial levelness of the distributor is more than 5 degrees, the swinger cannot automatically level, namely, a laser line cannot be emitted, and the swinger can give out an alarm sound to prompt that the initial levelness is unqualified. As long as the levelness of the distributor is less than or equal to 5 degrees, the requirements of the swinger are met. The circle of laser lines emitted by the swinger is necessarily horizontal, and within the range of the air separation tower, the precision can be as high as +/-0.2 mm. After the initial levelness of the distributor is qualified, the swinger is placed at the central position of the tower container, the distance of a circle of infrared laser rays emitted by the swinger is 3 meters, the swinger can automatically enable the laser to be swiped on an accurate horizontal plane, and the circle of laser ring/line with high horizontal accuracy is a reference horizontal plane.

The ruler with the receiver is continuously placed at 8-12 points selected on the plane of the distributor, corresponding height difference values can be obtained through reading of the points (namely the numerical values of the laser coils/lines scanned to the receiver), and accordingly the levelness of the distributor is judged, namely if the differences of the points are all 0mm, the absolute level state is obtained. The levelness of the distributor is required to be less than or equal to 2mm in the installation of the distributor, so that the levelness of the distributor can be considered to be qualified when the reading difference values of all points are less than or equal to 2 mm.

Illustratively, a real-time transmission device can be used to transmit the dynamic video to a quality control department, and a quality control worker can review the operation of testing the levelness of the distributor in the steps without personally descending to the distributor mounting surface in the tower container. Not only can improve efficiency, need not to rise the cage case to the top of tower container again with quality testing person transport the bottom of the tower moreover, can only go on once and go up and down and just accomplish all work steps.

The embodiments described in the specification are only preferred embodiments of the present invention, and the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the present invention. Those skilled in the art can obtain technical solutions through logical analysis, reasoning or limited experiments according to the concepts of the present invention, and all such technical solutions are within the scope of the present invention.