RU165764U1 - REINFORCED CONCRETE BASE FOR THE ROCKING MACHINE - Google Patents

Abstract

1. A reinforced concrete foundation for a rocking machine, consisting of a base made in the form of a horizontally mounted reinforced concrete slab and two reinforced concrete slabs installed perpendicularly along its longitudinal sides, the reinforced concrete base slab containing a steel frame on which a protective casing is mounted in the form of a steel profile by electric arc welding, characterized in that the steel profile has the form of a channel, consisting of three elements welded to each other over their entire height, and plates to the steel frame by tacks of at least three in the middle and to the ends of the lower and upper channel shelves, the vertically mounted plates containing a steel frame, and the base plate and plates installed on it containing embedded steel plates located in steel frames for welding said plates with each other. 2. Reinforced concrete foundation according to claim 1, in which the wall thickness of the channel is 6.5-7.5 mm. 3. Reinforced concrete foundation according to claim 1, in which the channel width is 2-3 mm greater than the thickness of the base plate frame. 4. Reinforced concrete foundation according to claim 1, in which the channel is installed on one or more sides of the base plate. 5. The reinforced concrete foundation according to claim 1, in which the dimensions of the base plate are 6 × 1.5 × 0.28 m or 6 × 1.5 × 0.3 m.

Description

The utility model relates to the foundations for a rocking machine and can be used to transfer the load from the soil pumping station installed on the foundation of the rocking machine to the ground.

Known metal pile foundation for a rocking machine of a downhole pumping unit (patent RU No. 150462, IPC E02D 27/44, publ. 02.20.2015), including piles made in the form of vertically arranged pipes, at least two of which are rigidly connected between a connecting beam, and the foundation consists of four pairs of pipes vertically spaced at a distance from each other, not connected to each other, but each pair is rigidly connected to each other by a connecting beam to install the base of the rocking machine, and each beam is made on in the form of a channel, for mounting it on top of piles, and plates welded to the channel from two ends in its upper part with holes for connecting them to piles using bolts.

Known rocking machines mounted on a foundation having a base, which is used as a reinforced concrete slab (patent RU No. 96917, publ. 08/20/2010 and patent No. CN 2869133, publ. 02/14/2007).

However, the well-known bases of rocking machines (SC) in the form of reinforced concrete (reinforced concrete) slabs do not contain additional reinforcing elements, and do not provide sufficient strength under the load arising during the operation of the SC, since excessive vibrations, misalignment, point load on the plates create a destructive effect on the reinforced concrete foundation, as a result of which it quickly fails.

Famous reinforced concrete slabs consist of a steel frame and concrete. The steel frame construction is made of periodic steel d from 8 mm to 20 mm, depending on the bearing capacity and operating conditions. The higher the load on the reinforced concrete plate, the greater d of the periodic steel (reinforcement). The disadvantage of all existing reinforced concrete slabs is the weak design of reinforced concrete slabs around the perimeter of the product, which leads to concrete coloring and exposure of the steel frame, inevitable corrosion and further destruction of the reinforced concrete slab. Considering the fact that the reinforced concrete plate is subjected to an uneven cyclic load and external mechanical pressure on individual sections with a bulldozer during centering of SKs, assemblies, dismantling, reassembling of the sucker rod pump (SHGN) and other equipment, it becomes necessary to reinforce the reinforced concrete plate capable of long-term carry all of the above loads.

A reinforced concrete slab is known (patent CN No. 102619152, IPC Е01С 9/08, published 01.08.2012), selected as the closest analogue, containing a steel frame, onto which a casing is mounted in the form of a metal corner, which surrounds the perimeter of the steel frame, and metal the corner is connected by welding to a steel frame.

In the claimed design, the concrete does not crumble, the integrity of the reinforced concrete slab is maintained, the durability increases to 40-50 years instead of the existing two years.

The task the utility model is aimed at is the creation of a high-strength reinforced concrete foundation construction for SC, providing damping of the impact pulse of dynamic masses, i.e. providing the ability to convert the energy it receives from shock (dynamic) loads on the ground.

The technical result, which the utility model aims to achieve, is to increase the strength of the foundation of the rocking machine, as a result, reliability and durability during its long-term operation.

The technical result is achieved by the fact that it contains a steel frame on which a protective casing is mounted in the form of a steel profile by means of electric arc welding, while the steel profile has the form of a channel consisting of three elements welded to each other over their entire height and welded to the steel frame slabs by tacking at least three in the middle and to the ends of the lower and upper channel shelves.

Also, the technical result is achieved by the fact that the vertically mounted plates contain a steel frame, and the base plate and the plates installed on it contain embedded steel plates located in the steel frames for welding said plates with each other.

The inventive device allows you to protect the foundation of the SK from external influences, thereby extending the service life, reducing installation and dismantling of equipment and replacing reinforced concrete structures with new ones, creating favorable operating conditions in the field of industrial safety.

The inventive device is illustrated in the figure and consists of the following elements:

1 - lower reinforced concrete slab of the foundation base;

2 - two side reinforced concrete slabs;

3 - a protective steel casing;

4 - crushed stone pillow.

The foundation of the SC consists of three reinforced concrete slabs: a horizontal horizontal reinforced concrete slab 1, and two vertical side reinforced concrete slabs 2 installed on it along its opposite longitudinal sides (edges) and perpendicular to it.

The lower reinforced concrete slab 1 serves as the foundation foundation, contains a steel frame.

What is new is that to strengthen the foundation, a protective casing 3 is installed on the plate 1, which is mounted to the steel frame using electric arc welding.

The protective casing 3 is a steel profile.

The steel profile has a U-shaped cross section and is a channel, or a steel profile, or profiled steel corners.

The wall thickness of the protective casing 3 depends on the thickness of the plate 1, and is installed in places most exposed to external influences.

The channel is installed on one or more sides of the plate 1.

Profiled steel corners are installed on one or more corners of the plate 1.

The use of a U-shaped steel profile or steel angle depends on the size of the plate 1, its operating conditions.

Thus, when installing the protective casing 3 provides a uniform load on the entire end of the plate 1 of the basement SK.

Installation of the device is as follows.

Install the steel frame for plate 1 in the ground.

Choose a protective casing 3: U-shaped (channel), angular, Taurus, I-beam.

Mount the protective cover 3 to the connecting elements of the steel frame using electric arc welding before pouring concrete.

Electric welding is carried out at points / places of the frame.

Pour steel frame for horizontal plate 1 with concrete.

The installation of a protective casing 3 on the plate 1 provides a uniform load on the entire end of the foundation plate 1 during centering installation and operation of the SC, in contrast to the point load in similar devices.

After installing the protective casing 3 on the plate 1 with a steel frame, two side plates 2 are installed vertically. Next, the SK is mounted, centered, commissioned and commissioned and the oil production equipment is put into operation.

Plate 1 serves as the foundation for the foundation of the SC, it is installed on a specially prepared site, which is a “trough” with a depth of 500 mm from the zero mark. Clay 15–20 mm thick is poured into it, compacted, which prevents the penetration of groundwater and wastewater. Then crushed stone of a fraction of 10–20 mm or 20–40 mm with a height of 100 mm is poured, after which a sand cushion with a height of 100 mm is poured, the bottom plate 1 is laid horizontally and a final leveling sand is made. Plate 1 carries the main load: the weight of two lateral reinforced concrete plates and SK, with a changing cyclic load from the side of the wellhead. In addition, the bottom plate 1 takes on an external local impact of the bulldozer technique during installation, dismantling, reassembly of the SK, especially in winter, when the plate 1 freezes to the ground or crushed stone cushion 4. This external effect causes the destruction of the plate 1 at the point of contact and transfer energy of the bending moment on the connecting elements of the steel frame of the plate 1, which causes the formation of cracks, chips of concrete and exit from the working state of the plate 1.

Two side plates 2 are installed on the lower horizontal plate 1 and are connected into a single structure by electric welding of embedded steel plates located in the steel frames of the plates 1, 2.

The purpose of the side plates 2: to ensure the installation of the maximum stroke length of the plunger of the sucker rod pump using the balancer SK, not less than 2.5-3 m.

The protective casing 3 is a channel, the width of which is greater than the thickness of the lower reinforced concrete plate by 2-3 mm, is welded to the steel frame by electric welding before pouring concrete in the factory.

Purpose of the protective cover 3:

- protection of the reinforced-concrete structure from external, including mechanical impact, both during installation, dismantling, remounting of the SK, and during operation in case of violations of the SK centerings;

- hardening the steel structure of the plate 1;

- preventing the destruction of concrete slab 1;

- maintaining the integrity of the design of the plate 1;

- increase the service life of reinforced concrete structures;

- increase the ability to perceive cyclic dynamic loads on the end face of a reinforced concrete plate;

- uniform distribution of dynamic loads across the entire width of the reinforced concrete slab.

The channel is gripped by electric welding to horizontal fittings at the ends and in the middle in three places with a weld length of 50 mm along both channels of the channel.

The production of reinforced concrete elements is carried out as follows: the steel frame of the reinforced concrete plate is assembled from class A-I, A-III fittings, the elements of which are welded together by electric welding with UONI 13/55 electrodes at direct current of reverse polarity. The width of the channel should be 2-3 mm greater than the thickness of the frame so that it can be freely inserted into the steel frame and secured to the tack by electric welding.

Mostly used channel (or steel profiles) with a wall thickness of 6 mm.

The dimensions of the bases of the lower horizontal foundation slabs 2: 6 × 1.5 × 0.28 m, or 6 × 1.5 × 0.3 m.

The dimensions of the channel, where h is the width, in is the height, s is the wall thickness, N is the profile number.

Dimensions of isosceles steel corners, where c is the width, s is the thickness, N is the profile number:

The installation of the protective cover 3 on the plate 1 is possible both in the factory and in the field.

In the factory, the steel frame of the plate 1 made of reinforcement A-I, A-III is installed on a flat horizontal surface.

The choice of material of the protective casing 3 depends, first of all, on the wall thickness of the channel, which is 6.5-7.5 mm or the wall thickness of the corners, which is 4-6 mm.

The assembly of the protective casing 3 consists in connecting, by electric welding, the end face of the frame of the plate 1 with a length of 1.5 m with two side elements of 0.5 m each. The assembly of the three elements of the protective casing 3 is made along the entire length of the connection. Welding of the protective casing 3 itself to the steel frame of the plate 1 is carried out with tacks of 50 mm length at the ends and in the middle of the lower and upper channel shelves. After performing the indicated works, concrete is poured.

In the field, at the production base, three pieces of the channel are prepared: one - 1.5 m long and two - 0.5 m long and transported to the installation site. Assembly is carried out by electric welding along the entire height of the two sides of the channel. Welding of the finished protective casing 3 is performed with tacks of 50 mm to the elements of the steel frame of the plate 1, at least three in the middle and to the ends of the channel.

The implementation of these works will prevent the destruction of plate 1 and, as a result, the dismantling of equipment, replacement of plate 1, installation of equipment, commissioning, reduce transport costs and the cost of disposal of rejected plates.

The claimed device is applicable both to protect new foundations, and to repair already worn foundations.

During the operation of oil wells in a mechanized way using SC using reinforced concrete structures as a foundation, concrete crumbles constantly, chips are formed, open fragments of the steel frame appear, inevitable corrosion and further destruction of the foundation. All this leads to increased vibration of the SC, misalignment, a number of applications for troubleshooting to stop the SC. These include: rope suspension wear, cracks in the head of the balancer, the body of the balancer, the traverse of the balancer, the strut of the SK, the failure of the support bearing of the balancer, breakage of the rods, the weakening of the attachment of individual components of the SK, etc.

The reasons for the partial destruction of reinforced concrete structures are climatic operating conditions and uneven cyclic loads on the reinforced concrete structures. A sharp decrease and increase in ambient temperature leads to a sharp linear expansion and contraction of the reinforced concrete frame, which leads to the formation of cracks in concrete, chips, and, as a result, the destruction of the reinforced concrete structure. Uneven cyclic load on the reinforced-concrete structure only exacerbates severe operating conditions. The main reason for the destruction of reinforced concrete structures is a defect in the reinforced concrete product itself, because the conditions of repeated installation, dismantling, re-installation, alignment with bulldozer equipment, mechanical impact on the ends of the reinforced concrete products are not taken into account. With respect to SC, 95% of the destruction of reinforced concrete structures occurs from the wellhead, since on the opposite side there is a service platform and an SC ladder, which does not allow the bulldozer to exert efforts to move the reinforced-concrete structure. Winter dismantling, remounting is especially fatal for reinforced concrete structures, as concrete is highly brittle and sensitive to any external influences.

The installation of a protective casing 3 allows you to create a single monolithic reinforced concrete structure that can bear uneven cyclic loads, changes in climatic temperatures, increase durability and repeated dismantling, remounting of SK with foundations at any time of the year.

The claimed device can also be used in various industries.

Steel reinforcement of reinforced concrete structures to protect against external influences is relevant not only in the oil production system in the UK, but can also be practiced on the foundations of capacitive equipment, oil and gas refineries, chemical plants, foundations of technological equipment and pipelines, agriculture, road construction, etc. P.

Claims (5)

1. A reinforced concrete foundation for a rocking machine, consisting of a base made in the form of a horizontally mounted reinforced concrete slab and two reinforced concrete slabs installed perpendicularly along its longitudinal sides, the reinforced concrete base slab containing a steel frame on which a protective casing is mounted in the form of a steel profile by electric arc welding, characterized in that the steel profile has the form of a channel, consisting of three elements welded to each other over their entire height, and plates to the steel frame by tacks of at least three in the middle and to the ends of the lower and upper channel shelves, the vertically mounted plates containing a steel frame, and the base plate and plates installed on it containing embedded steel plates located in steel frames for welding said plates together. 2. The reinforced concrete foundation according to claim 1, wherein the channel wall thickness is 6.5-7.5 mm. 3. The reinforced concrete foundation according to claim 1, in which the channel width is 2-3 mm greater than the thickness of the base plate frame. 4. The reinforced concrete foundation according to claim 1, in which the channel is installed on one or more sides of the base plate. 5. The reinforced concrete foundation according to claim 1, in which the dimensions of the base plate are 6 × 1.5 × 0.28 m or 6 × 1.5 × 0.3 m.

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