CN210371394U - Hydraulic balance energy accumulator station group special for hydraulic transmission of produced stepping heating furnace - Google Patents

Abstract

The utility model provides a special hydraulic balance energy storage ware station group of step-by-step heating furnace hydraulic transmission has been produced, supplies the step-by-step heating furnace who has produced to store it with the energy storage ware for the high potential energy that its lift rack and steel billet promoted back with it truns into the power supply reuse in order to promote rack and steel billet, realizes the lift load full balance, energy-conservation increase. The method is characterized in that any equipment of an original transmission system is not changed, and the tipping is finished only by connecting three pipe orifices of a proposed accumulator station to the produced original hydraulic transmission system and then installing a control valve behind a proportional valve, so that the method can be put into use. The accessed hydraulic balance system and the original hydraulic system can be quickly switched, and an equipment energy accumulator (used for an external air source bag type energy accumulator) can also be quickly switched among the energy accumulators and quickly process faults, so that the production reliability is greatly improved. The advantages are that; the system has the advantages of simple structure, convenient manufacture and installation, simple and convenient design and debugging, less investment, recovery of about one year, obvious energy conservation, emission reduction and efficiency improvement, and capability of simplifying the original pump station system.

Description

Hydraulic balance energy accumulator station group special for hydraulic transmission of produced stepping heating furnace

Technical Field

The utility model relates to a hydraulic balance energy storage ware station group is special to the step-by-step heating furnace hydraulic transmission who has produced.

Background

Hydraulic balancing is well-known in textbooks and many papers, and embodiments are rarely seen. However, a large number of places with lifting loads are not developed and utilized, hydraulic balance energy storage is utilized in the places with lifting loads, the places with lifting loads occupy important positions for energy conservation and emission reduction, and the theoretical achievement is worth being rapidly converted into practical productivity. The hydraulic balance and accumulator station is an important auxiliary device in hydraulic transmission system, and its composition is simple, i.e. it is formed from a group of simple units of gas cylinder, accumulator, safety valve and several ordinary high-pressure valves. These devices are well established and are widely used in a variety of industries. With the development of industry, the increase of energy consumption also brings more environmental pollution and damages to the health of people. In some fields, hydraulic balance can be adopted to achieve the effects of energy conservation and emission reduction, and the aim of reducing environmental pollution can be partially achieved. The method has the advantages that the high potential energy of the occasions with lifting movement is utilized as much as possible, the advantages and disadvantages are balanced, the concept is changed, the restriction of the existing equipment and mechanical structures is reduced, and the method is innovated greatly. In a hydraulic transmission system with a lifting load occasion, hydraulic balance is preferred, especially for the occasion with large load and frequent lifting movement, such as: step-by-step heating furnace hydraulic transmission in steel plant, its load is relatively fixed, and the lift load is great, and the action is frequent, and the cycle is repeated unchangeably in succession, is the most suitable hydraulic pressure of adopting balanced, the utility model discloses a mainly to it and customization oneself. For another example: steel coil loading and unloading and stepping transportation in a steel mill, a certain steel rolling mill swings a lifting platform and the like forwards and backwards, and further, the steel coil loading and unloading and stepping transportation system has more excavators, elevators and the like in many engineering machines. In many fields such as forklift loading and unloading machines in the logistics field, hydraulic or pneumatic balance energy conservation can be adopted, and the pollution to the environment is reduced. The hydraulic transmission has many advantages, is widely used in many transmissions, but has great defects of low efficiency and high energy consumption, and provides various solutions for the hydraulic transmission with a plurality of lifting loads according to different characteristics and requirements, and a large or small hydraulic balance energy accumulator station is arranged to save energy and reduce consumption. One solution has been provided in connection with the use of hydraulic drives in already produced step-by-step furnaces.

Disclosure of Invention

The utility model aims at: the bag-type energy accumulator with simple structure and single jar of large-capacity air jar connected with external air supply source can be used for supplying pressure oil to the transmission hydraulic cylinder of the produced stepping heating furnace to balance all lifting loads and greatly save electric energy consumption.

In order to better understand the action mechanism of the energy accumulator, the action process of the stepping heating furnace is briefly described as follows; the step heating furnace is used to make billet heated by step machinery in the process of heating billet in a furnace, and then the billet is rolled into a material by a rolling mill. The billet steel is put on the fixed rack in the furnace, and the lifting rack is generally about 100mm lower than the fixed rack. During action, the lifting rack is lifted by the hydraulic cylinder to a steel billet on the light contact fixing rack, then the steel billet and the steel billet are lifted by the hydraulic cylinder continuously for about 100mm together, and then the steel billet and the lifting rack are translated together. When the steel billet is horizontally moved, the other horizontal moving hydraulic cylinder pushes the lifting rack to move a certain distance together with the steel billet, the lifting rack and the steel billet descend together again, the steel billet moves forward for a certain distance and then stops on the fixed rack after moving down to the steel billet light contact fixed rack, the lifting rack continues to descend, and returns to the original position after falling to the bottom position, so that a step cycle period of the steel billet is completed. The billet steel is heated while moving forward in the stepping heating furnace, and the process is repeated next time.

The majority of the hundreds of the prior domestic stepping heating furnaces adopt hydraulic transmission, wherein the majority of the prior stepping heating furnaces adopt double-jar hydraulic cylinder transmission arranged at two sides and also adopt single hydraulic cylinder transmission arranged in the middle. The utility model discloses a be applicable to this all, also need not make any change.

The lifting rack of the stepping heating furnace has a section of idle stroke distance and then has a distance with the billet. The utility model discloses establish two sets of hydraulic pressure balance mechanism. The hydraulic balance mechanism is used for the idle stroke of the lifting rack, the dead weight of the hydraulic balance mechanism is about one hundred tons, the load of the hydraulic balance mechanism can be completely balanced by changing the inflation pressure of the air pot by one set of hydraulic balance unit, the hydraulic balance mechanism is lifted to the distance of operation before contacting with a steel billet, the hydraulic balance energy accumulator set is responsible for providing power lifting, and the pressure of a hydraulic balance system is smaller. When the lifting rack rises to contact with the steel billet, the lifting rack and the steel billet rise simultaneously, the load of three hundred tons is about, the other group of hydraulic balance accumulator group is responsible for providing power lifting, the load of the hydraulic balance accumulator group is completely balanced by changing the inflation pressure of the air tank, and the pressure of a hydraulic balance system is larger. When the lifting platform descends, the weight of the high potential energy of the lifting platform and the billet and a certain pressure of the piston rod cavity are utilized to press high-pressure oil with different pressures in respective positions from the hydraulic cylinder back to respective energy accumulators for power lifting in the next period, and a hydraulic balance process is completed. The components of the two hydraulic balance systems are the same, namely the pressures of the two hydraulic balance systems are different.

Only one hydraulic balance system will be described below, and the description of the other hydraulic balance system will be omitted.

The technical scheme of the utility model fall into two big independent parts and constitute, one is the hydraulic balance energy storage ware station of new development completely, and the other part is the step-by-step stove hydraulic transmission system who has produced. However, hundreds of sets of transmission devices of the stepping heating furnace are arranged in the country, the transmission devices are divided into middle single hydraulic cylinder transmission and two-side double hydraulic cylinder transmission, the steel billet load is different in weight and weight due to different production varieties, the transmission devices are all suitable for hydraulic balance energy accumulator stations, and if the load changes due to product changes, the problems can be solved by adjusting the pressure in the air fountains in the lifting rack and the steel billet balance system.

Specifically, the technical scheme of the utility model provides a special hydraulic balance energy accumulator station group of production step-by-step heating furnace hydraulic transmission, which is characterized in that the station group comprises a single high-pressure press processing or high-pressure welding gas jar, the lower part of the gas jar is connected with a normally closed high-pressure ball valve, the upper part of the gas jar is divided into two paths, one path is connected with a high-pressure pneumatic safety valve group, and the other path is connected with the upper part of a bag type energy accumulator externally connected with an air source through the high-pressure ball valve; the lower part of a bag type energy accumulator with an external air source is connected with a high-pressure oil safety valve, the high-pressure oil safety valve is provided with an overflow valve, a T port of the high-pressure oil safety valve is connected to an oil return main pipe of a hydraulic system of an original stepping heating furnace through a pipeline, and a connection point of the T port of the high-pressure oil safety valve and the oil return main pipe is one of three access points of the hydraulic balance energy accumulator station group and is defined as an access point I; a manual valve is arranged in the high-pressure oil safety valve and connected to a pressure port P, the pressure port P is divided into two paths, one path is connected to a control valve and then connected to an original stepping heating furnace hydraulic system through a pipeline, the connection point of the pressure port P and the original stepping heating furnace hydraulic system is two of three connection points of the hydraulic balance energy accumulator station group and is defined as a second connection point, the second connection point is connected to a piston cavity port of a single hydraulic cylinder or two hydraulic cylinders of the original stepping heating furnace hydraulic system through a pipeline, the other path of the pressure port P of the high-pressure oil safety valve is connected to a pressure oil main pipe of the original hydraulic system through a normally closed high-pressure ball valve through a pipeline, and the connection point of the pressure port P and the pressure oil main pipe is three of the three connection points of the hydraulic; a newly added control valve is connected on a pipeline behind a proportional valve of an original stepping heating furnace hydraulic system and is connected with piston cavity openings of a single hydraulic cylinder or two hydraulic cylinders.

Preferably, the high-pressure welded gas canister includes a first end cover with a sewage draining interface and a second end cover with an air inlet and outlet interface, and the first end cover and the second end cover are respectively welded at two ends of a canister cylinder made of a low-alloy seamless steel tube to form a single high-pressure welded gas canister meeting the requirements of required pressure, capacity and position.

Preferably, the air pot processed by the high-pressure machine comprises an end cover III provided with a sewage discharge outlet and an end cover IV provided with a high-pressure air inlet and outlet;

the third end cover and the fourth end cover are respectively screwed and fixed at two ends of an air pot body made of low-alloy seamless steel pipes through fine-tooth screws;

the third end cover, the fourth end cover and the inner side of the air container body are provided with a first sealing accessory which is stuck on the third end cover and the fourth end cover by a high-strength adhesive; and a sealing gasket I is arranged between the end cover III, the end cover IV and the air container body, and three small steel cylinders are uniformly distributed at the center of the sealing gasket I at 120 degrees, so that the sealing gasket I is compressed to a certain degree to improve the sealing performance.

Preferably, the sealing gasket is made of a sealing material with certain hardness and elasticity or a low-toughness nonferrous metal material.

Preferably, the bag-type energy accumulator with the external air source comprises an energy accumulator jar body, a bottom cover is screwed on one end of the energy accumulator jar body by a fine-thread screw, an oil inlet and outlet port is arranged on the bottom cover, and a tight and reliable seal is formed between the bottom cover and the energy accumulator jar body through a second sealing accessory and a second sealing gasket; the sealing accessory is stuck on the bottom cover by the high-viscosity adhesive;

the bag-type energy accumulator with the external air source also comprises a rubber inner container, the rubber inner container is connected on a guide shaft penetrating through the energy accumulator jar body through a screw and a gasket, the guide shaft slides in an upper cover arranged at the other end of the energy accumulator jar body, the upper cover is provided with an air inlet and an air outlet, and the upper cover presses the rubber inner container on the energy accumulator jar body through a guide block; an O-shaped sealing ring is arranged on the guide block to prevent leakage; a notch is arranged on the guide block, a round convex block matched with the notch is arranged on the rubber inner container, and the round convex block is embedded in the notch of the guide block to prevent the rubber inner container from falling off; an O-shaped sealing ring is arranged at the joint of the upper cover and the energy accumulator jar body, and the upper cover is screwed on the other end of the energy accumulator jar body through a high-strength bolt and a nut so as to be convenient for disassembling the upper cover and replacing a damaged rubber liner; the upper cover is provided with a guide sleeve and a sealing device, the upper cover is also screwed with a distance measuring cylinder, and the distance measuring cylinder is provided with a position sensor, so that the rubber liner moves in a certain range to prompt an alarm signal.

Preferably, the second sealing gasket is made of sealing rubber with moderate strength and hardness or a low-toughness nonferrous metal material; 3 steel small cylinder distance limiting bodies are arranged in the middle of the second sealing accessory 120-degree interval, a second sealing gasket is arranged in the bottom cover, the second sealing gasket is compressed by 1/3, the second sealing gasket is deformed, gaps around the second sealing gasket are filled, and a part of the second sealing gasket overflows to the second sealing accessory and the gap of the second low-alloy seamless steel tube, wherein the second sealing accessory and the gap of the second low-alloy seamless steel tube are manufactured by the low-alloy seamless steel tube.

The utility model provides a pair of hydraulic balance energy storage ware station includes a large capacity gas jar, and gas jar lower part is equipped with a normal close high-pressure ball valve, and the use of blowdown is used. The upper part of the canister body is connected with a gas safety valve set through a pipeline, and an air charging device, a pressure gauge, an exhaust valve and the like are arranged on the canister body. The other pipeline on the upper part of the jar body is connected with a high-pressure ball valve and then connected with an upper gas source access port of an energy accumulator to supply high-pressure gas source power to the energy accumulator. The lower part of the energy accumulator is connected with a high-pressure oil safety valve, a pressure gauge is arranged on the safety valve, one path of normally closed high-pressure ball valve below the safety valve is connected with an oil return main pipe of the original hydraulic transmission system, the other pressure pipeline is divided into two paths, and the other path of normally closed high-pressure ball valve is connected with a pressure main pipe of the original hydraulic transmission system. One path is connected with a control valve and then connected with a driving hydraulic cylinder of the stepping heating furnace to push the rack of the stepping heating furnace and the billet to act. The connection of one path of hydraulic balance system is completed, and the connection mechanism of the other path of energy accumulator station group is the same as that described above. The two accumulator station groups can be connected with one hydraulic cylinder or two hydraulic cylinders at the same time, so that the original stepping heating furnace can be driven by a single jar or double jars, and a control valve is added on a rear piston cavity pipeline of a proportional valve for an original hydraulic system no matter the single jar or the double jars are driven. The original hydraulic transmission system is not changed, so that the original hydraulic transmission balance system can be connected only by connecting three points to the original hydraulic transmission system, two systems coexist (namely the system provided with the hydraulic balance and the original hydraulic transmission system are on line), and the two systems can be quickly interchanged for production, and when the hydraulic transmission balance system operates normally, some redundant pump systems can be used as spare parts or can be detached for use.

The hydraulic balance is simple, namely two main devices of an air tank and an accumulator. Refer to a canister; in order to save energy, a large-capacity high-pressure air tank is used, so that the pressure difference is small and energy is saved. The air tanks are of various types, most of the air tanks are small-capacity air tanks with two closed ends formed by heating the end parts of seamless steel pipes and spinning by a special machine tool at present, and the small-capacity air tanks are large in using amount, low in batch production price, small in using amount, limited by additional equipment of the machine tool and high in price of the large-capacity spinning air tanks. At present, no proper high-capacity air pot matched with a high-capacity hydraulic balance accumulator exists, a plurality of small-capacity air pots are used in parallel, the pipeline connection is complex, air leakage is easy, and the price is not low. Therefore the utility model discloses hope to adopt single welding gas jar or the high-pressure jar of machine tooling, large capacity gas jar just does not receive the restriction of rotating the machine tool like this, and the design will be many large capacity gas jars, as long as choose for use appropriate steel pipe diameter and length, both sides add and weld high-pressure head or end cap just can. Although the specifications suggest that high pressure vessels cannot be welded, with advances in welding and inspection techniques, welding is possible over a range of pressures and in certain locations. And the other method is to seal and seal the two ends by threaded connection, the structure is simple and reliable, and the blank that some high-pressure containers cannot be welded is made up. This requires design and manufacturing tradeoffs.

About being used for the energy storage ware, there are two kinds of selections, one kind is the piston energy storage ware of chooseing for use the very ripe of present domestic and foreign structure great homology little difference, follows the utility model discloses use in production in advance, at first several sets of hydraulic pressure balance suggestions choose for use the higher piston energy selection ware of present domestic and foreign sexual valence ratio, another kind is chooseing for use the bag formula energy storage ware of taking external air supply, to this the utility model discloses have a plurality of schemes, will apply for patent separately again and explain in detail, the utility model discloses list one of them scheme earlier and explain, should compare and test this multiple scheme earlier before adopting, the utility model provides a multiple optional hydraulic pressure balance product, be used for production when the comparison is confirmed to have advantage and sexual valence relative altitude.

The utility model provides an use the bag formula energy storage ware of taking external air supply, it is got its long gram its short and development of its institute to the bag formula energy storage ware, will carry out the experiment to its multiple structural style before its uses and improve. The advantages of a bladder accumulator; 1) the leather bag separates oil gas, so that the oil gas is not mixed and leaked, and the production is reliable. 2) The leather bag has small action inertia and sensitive response. 3) Light weight and low price. The disadvantages are that; 1) the leather bag has short service life, low rubber strength, more factors influencing the service life and lower production reliability. 2) The rupture of the skin sac is sudden and large, and the treatment failure time is long. 3) The inner wall of the jar body is rough (the inner surface of the cylinder body cannot be finished due to the manufacturing structure), the deformation of the leather bag is irregular, and the inner container is easy to break. 4) The prior bag-type accumulator is closed by a single canister, the volume of gas in the canister is limited, the pressure difference is large, and the bag-type accumulator cannot be suitable for a large-capacity accumulator, for example, a plurality of canisters are connected in parallel to use, which brings many technical problems. One of the proposals of the bag type energy accumulator with external air source of the utility model is described in the following legend.

The large-capacity energy accumulator is balanced, and the existing piston type energy accumulator has more advantages and disadvantages; 1) simple structure, easy installation and convenient maintenance. 2) Safe and reliable, long service life. 3) The sealing element is replaced, and the maintenance cost is low. 4) The abrasion and damage of the sealing element are gradually formed, so that no accident is caused, and the production is influenced. The disadvantages are as follows: 1) the machining precision of the inner part of the shell is high, and the requirement on the performance of the sealing element is high. 2) Leakage and high frictional resistance. 3) The equipment is heavy and expensive. 4) The piston position is not visible, and a certain instrument is needed for detection. At present, the piston energy accumulator has the same and different structure, and the piston position detection mechanism is diversified. The method is characterized in that a plurality of products are produced at home and abroad, the quality of the products is different, and for the hydraulic balance of a stepping heating furnace in large scale and domestic, a reliable piston accumulator is recommended to be selected firstly, and a side wall fixed point inductive sensor or a fou-bottom ultrasonic wave continuous measurement sensor is also recommended to be adopted for piston position detection. And then comparing and selecting the bag type accumulator with the external air source after the shape selection test is carried out.

The utility model has the advantages of as follows:

(1) the equipment has simple and mature structure, and standard finished products can be selected and used, and more practical new products can be selected and used.

(2) The equipment investment is small, and the recycling can be realized within about one year.

(3) The installation is simple and easy, and the hydraulic system can be realized in large and medium maintenance of equipment generally only by placing a preassembled energy accumulator station at a proper position, connecting three pipelines to an original hydraulic system and adding another control valve.

(4) The design and debugging are convenient, the pressure of the air tank is only required to be changed, the load borne by the hydraulic cylinder of the original hydraulic system is completely balanced, and if the production product is changed, the load is changed only by adjusting the pressure of the air tank.

(5) The newly-arranged hydraulic balance system and the original production system can be quickly switched, and only a plurality of control valves are required to be opened and closed.

(6) The utility model discloses a bag formula energy storage ware of external air supply establishes a reserve bag formula energy storage ware of isostructure, but fast switch over between them, and the rapid processing trouble is produced more reliably.

(7) Energy conservation, emission reduction and efficiency improvement, and about 80 ten thousand degrees of electricity can be saved every year.

(8) The original hydraulic system is not changed, so much power is not needed, a plurality of hydraulic pumps can be stopped, and the hydraulic system is used as a spare part, and other original systems such as filtering, cooling and the like are small.

Drawings

FIG. 1 is a schematic diagram of a hydraulic balance accumulator station set for a produced walking beam furnace;

FIG. 2 is a schematic view of a welding gas canister;

FIG. 3 is a schematic view of a screw connection can being machined;

FIG. 4 is a schematic view of a bladder accumulator with an external gas source;

fig. 5 and 6 are schematic views illustrating installation of the hydraulic balance accumulator station group.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Example 1

As shown in fig. 1, it is a schematic diagram of a station group of hydraulic balance energy accumulators for a produced stepping heating furnace, which is an energy accumulator station composed of a single large-capacity machining or welding air jar, a bag type energy accumulator with an external air source, a high-pressure safety valve and other high-pressure ball valves, and a power unit of a produced hydraulic transmission lifting system. The hydraulic balance energy storage station comprises a newly designed and manufactured hydraulic balance energy storage station, as shown in a block A in the figure, and an original produced hydraulic transmission lifting system power unit, as shown in a block B in the figure. The power unit of the original produced hydraulic transmission lifting system has hundreds of sets of hydraulic transmission systems of the stepping heating furnaces in China, some hydraulic transmission systems are in single-cylinder middle transmission, and some hydraulic transmission systems are in double-cylinder transmission at two sides, so that the B area can be formed with the C area or the D area, and the access points are the same. A hydraulic balance energy accumulator station group of the stepping heating furnace is composed of a hydraulic balance energy accumulator station in the area A and a power unit of a hydraulic transmission lifting system originally produced in the area B.

The area A is a newly-built bag type energy accumulator station with an external air source, and consists of two groups of hydraulic balance systems, and the configuration of the hydraulic balance systems is the same. The left (or right) side is designed for balancing the lifting of the lifting rack, and the pressure of the energy accumulator is lower because the load of the lifting rack is lighter, and is determined by the pressure of the air tank. The right (or left) side is specially used for balancing the lifting rack and the lifting of the steel billet, so the pressure of the energy accumulator is higher and is also determined by the pressure of the air tank. Because the utility model discloses final recommendation adopts the bag formula energy storage ware of taking external air supply, because of receiving that rubber strength is lower, damage unpredictable, consequently equipment one is with the homostructure of taking external air supply and the bag formula energy storage ware of capacity, both sides all accessible normal close high-pressure ball valve open and close quick interoperable. If the piston accumulator is adopted by a designer or a user, the accumulator is not necessary for the equipment.

The hydraulic balance is an independent closed-loop system, the lifting balance system has no direct relation with original hydraulic transmission, and only the control system adopts the original system. If the inner container of the bag type energy accumulator with the external air source is broken, no major accident can be caused, and the production can be continuously maintained. If the inner container is broken, the original gas-oil separated energy storage production is changed into the gas-oil contact energy storage device to operate, and the production can be continuously maintained. Because of closed-loop transmission, the original transmission system is not influenced, and the system can be continuously used for the time of shifting or product changing and stopping. At the moment, only a high-pressure ball valve of the gas-can-through accumulator is closed, a small amount of gas and oil in the bag-type accumulator with the external gas source and oil in the hydraulic cylinder are emptied, and then the bag-type accumulator is connected to a standby bag-type accumulator with the external gas source, so that the production can be continued, and then the inner container of the bag-type accumulator with the external gas source is replaced. Therefore, it has the advantages that the production is not affected by the damage of the leather bag, the service life of the original can be used, the service life is prolonged, and the cost is saved.

Specifically, as shown in fig. 1, the hydraulic balance accumulator station group comprises a single large-capacity machining or welding air tank 1, and the lower part of the air tank 1 is connected with a normally closed high-pressure ball valve for sewage discharge. The upper part of the jar body 1 is divided into two paths, one path is connected with a high-pressure pneumatic safety valve group 2, and the high-pressure pneumatic safety valve group 2 is provided with a pressure gauge, an air inlet valve group and an exhaust valve besides a pneumatic safety valve. The other path is connected with the upper part of a bag type energy accumulator 5 with an external air source through a high-pressure ball valve (in the scheme, 3 bag type energy accumulators 5 with external air sources, 3 high-pressure oil safety valves 3 and 3 control valves 4 are arranged, the structure and the capacity of the bag type energy accumulator 5 with the external air sources are the same, namely the bag type energy accumulators are used in different places, the pressure values are different, the 3 high-pressure oil safety valves 3 and the 3 control valves 4 are the same in structure size, one group of the high-pressure oil safety valves is used for lifting a lifting platform, the other group of the high-pressure oil safety valves is used for lifting the lifting platform and a steel billet, the middle group of the high-pressure oil safety valves is used for reserving energy accumulators on two sides), the lower part of the bag type energy accumulator 5 with the external air sources is connected with the high-pressure oil safety valve 3, and a pressure gauge is arranged on the. The high-pressure oil safety valve 3 is provided with an overflow valve, and a T port on the high-pressure oil safety valve 3 is connected to an oil return main pipe T of an original hydraulic system through a pipeline and is also one f point of three access points of a hydraulic balance energy accumulator station group. The high-pressure oil safety valve 3 is internally provided with a manual valve connected with a pressure port P and divided into two paths, wherein one path is connected with a control valve 4 and then is connected with a g point line of a C area or a D area (the C area is a single-cylinder transmission system or the D area is a double-cylinder transmission system) on a B area of the original hydraulic system through a pipeline, and the g point is also one of three access points of a hydraulic balance energy accumulator station group. The point g is connected with the piston cavity openings of the single hydraulic cylinder 9 in the area C or the two hydraulic cylinders 7 in the area D through pipelines. The other path of the P port on the high-pressure oil safety valve 3 is connected to the original hydraulic system pressure oil main pipe P through a pipeline via a normally closed high-pressure ball valve and is also the e point of one of the three access points of the hydraulic balance accumulator station group. In the area B, a proportional valve 10 of a hydraulic system of the original stepping heating furnace is connected with a pipeline of a rear opening A, and a newly added control valve is connected with a control piston cavity opening of a single hydraulic cylinder or two hydraulic potteries.

Example 2

As shown in fig. 2, which is a schematic structural diagram of a high pressure welding air vessel, the high pressure welding air vessel with the stamped seal heads at two ends has been patented and can be selected according to the requirement. The utility model provides another kind of high pressure welding gas jar welds a steel sheet with low alloy seamless steel pipe at both ends, and it can be flat with the steel pipe, also can stretch out a bit, also can indent and remove a bit and weld. The length of the straight channel of the steel pipe is simple, the capacity is convenient to select, and the processing and manufacturing are simple. The high-pressure welding air jar of the utility model comprises an end cover 1-2 which is positioned at one end of the air jar 1, a sewage draining interface 1-1 is arranged on the end cover 1-2, and the high-pressure welding air jar is welded on a jar barrel 1-3 which is made of a low-alloy seamless steel pipe. The other end of the air canister 1 is provided with an end cover 1-4, an air inlet and outlet interface 1-5 is arranged on the end cover 1-4, and the air inlet and outlet interface is also welded on a canister cylinder 1-3 made of low-alloy seamless steel tubes to form a single high-pressure air canister meeting the requirements of required pressure, capacity and position.

Example 3

As shown in FIG. 3, the machining screws are connected to the high pressure gas canister, which is limited by a certain pressure, and the machining screws are connected to the high pressure gas canister for use in a pressure balance system. The machining screw is connected with the high-pressure air pot, namely, one side of the air pot 1 is provided with an end cover 1-9, the end cover 1-9 is provided with a sewage discharge outlet 1-6, and the end cover 1-9 is screwed and fixed on the air pot body 1-10 made of the low-alloy seamless steel pipe through a fine-tooth screw. Sealing accessories 1-7 are arranged between the end covers 1-9 and the air tank bodies 1-10. The sealing accessories 1-7 are stuck on the end covers 1-9 by high-strength glue, and can not fall off from the air container bodies 1-10 because the sealing accessories are pressed by high-pressure gas. A sealing gasket 1-8 is arranged between the end cover 1-9 and the air container body 1-10, and the sealing gasket can be made of rubber and other sealing materials with certain hardness and elasticity or low-toughness nonferrous metal materials such as red copper, lead and the like. Three small steel cylinders (assuming that the sealing gasket 1-8 is about 10mm thick, the small steel cylinders are about 6mm in diameter and about 7mm in height, and can find similar elements from the roller bearing, so that when the sealing gasket 1-8 is screwed on the end cover 1-9, the sealing gasket 1-8 has a compression amount of about 1/3, so that the sealing gasket 1-8 is deformed, and apart from filling the surrounding gap, a part of the sealing gasket should overflow to the sealing accessory 1-7 and the air pot body 1-10 made of low-alloy seamless steel tube, after the air pot body 1-10 is filled with high-pressure gas, the sealing accessory 1-7 is pressed to generate elastic deformation to press the sealing element 1-8, and simultaneously the high-pressure gas directly compresses the sealing gasket 1-8, so that the sealing performance is improved, the end cover 1-11 is also arranged on the right side of the air pot body 1-10, a high-pressure air inlet and outlet 1-12 is arranged on the sealing device, a sealing accessory 1-7 and a sealing gasket 1-8 with the same structure and function are arranged between an end cover 1-11 and an air tank body 1-10, and the tank body at the position is sealed under the action of high-pressure gas.

Example 4

As shown in fig. 4, the general bag accumulator with external air source has been used for many years and is mature and widely used in hydraulic systems, but its structure is largely the same at home and abroad, and because it is a closed structure, its air space occupation ratio is large, so that it has small energy storage amount, large pressure difference, and its oil and gas amount are not controlled, its production is freely deformed, and its weak position is easy to damage, so that it can not meet the requirements for large-capacity energy storage. There are many types of bag-type accumulators with external gas supply, and the detailed description in the patent is that the external gas supply and the oil and gas accumulation in the pot can be adjusted, and the description is briefly introduced in this patent.

The bottom cover 5-4 of the bag type accumulator 5 with external air source is screwed on the pot body 5-6 by using fine screw, the bottom cover 5-4 is equipped with oil inlet and outlet 5-1, and between the bottom cover 5-4 and the pot body 5-6 a sealing pad 5-2 and a sealing attachment 5-3 are set, and it can be stuck on the bottom cover 5-4 by using high-strength adhesive, and can not be fallen off because it is extruded by high-pressure oil. The sealing gasket 5-2 can be made of sealing rubber with moderate strength and hardness or low-toughness nonferrous metal materials, such as red copper, lead and the like. Three small steel cylinders (assuming that the sealing gasket 5-2 is about 10mm thick, the diameter of the small cylinder is about 6mm, the height of the small cylinder is about 7mm, and similar elements can be found from the roller bearing, so that when the sealing gasket 5-2 is screwed down on the bottom cover 5-4, the sealing gasket 5-2 has about 1/3 compression amount, the sealing gasket 5-2 deforms, except for filling the surrounding gap, a part of the sealing gasket overflows to the gap between the sealing accessory 5-3 and the potteries body 5-6 made of low-alloy seamless steel tube, after the potteries body 5-6 is filled with high-pressure oil, the sealing accessory 5-3 is pressed to generate elastic deformation to press the sealing gasket 5-2, and simultaneously, the high-pressure oil directly compresses the sealing gasket 5-2 to improve the sealing performance) are uniformly distributed at 120 degrees in the center of the sealing gasket 5-2, and the rubber inner container 5-7 of the capsule type energy accumulator is provided with screws, The packing is connected to the guide shaft 5-12, and the guide shaft 5-12 slides in the upper cover 5-10. The upper cover 5-10 is provided with an air inlet and an air outlet 5-8, the upper cover 5-10 presses the rubber liner 5-7 on the guide block 5-9 and the pot body 5-6 through the guide block 5-9, the guide block 5-9 is provided with an O-shaped sealing ring, the anti-leakage (shown in the figure but not marked) guide block 5-9 is also provided with a notch, and the rubber liner 5-7 is provided with a round convex block which is embedded in the notch of the guide block 5-9 to prevent the rubber liner from falling off. An O-shaped sealing ring is also arranged between the upper cover 5-10 and the vessel body 5-6, and the upper cover 5-10 is connected with a nut screwed on the vessel body 5-6 through a high-strength bolt, which is beneficial to disassembling the upper cover 5-10 and replacing the damaged rubber liner 5-7. The upper cover 5-10 is provided with a guide sleeve and a sealing device 5-11, the upper cover 5-10 is also screwed with a distance measuring cylinder 5-13, and the distance measuring cylinder 5-13 is provided with a position sensor 5-14, so that the rubber liner 5-7 moves in a certain range to prompt an alarm signal.

Example 5

As shown in fig. 5 and 6, the installation pattern of the hydraulically balanced accumulator station set, the existing system schematic, is designed or desired by the user, and there are many installation patterns that should not be discussed in the patent. Along with the development trend of the current hydraulic technology, the hydraulic control system develops towards high efficiency, low energy consumption, element standardization and integration, control intellectualization and automation. The utility model discloses still put forward the suggestion, stand group as a whole with hydraulic balance energy storage ware, integrate components and parts as far as possible, arrange the place of the operation monitoring control of being convenient for in, put hydraulic balance energy storage ware group in former hydraulic pressure station, components and parts have long service life under the clean condition of environment, someone supervision again, only need insert on the corresponding hydraulic pressure pipeline of scene with a house steward after the debugging and become. The utility model discloses propose adorn high pressure jar and energy storage ware soon on a thick steel plate, see figure 5 and figure 6, wherein listed the installation schematic diagram of the front view and the top view that this patent suggests, each number is unanimous with hydraulic balance energy storage ware station group system schematic diagram, has just listed suggestion with each device, the integrated package 11 of valve. Of course, the high pressure gas canister and the accumulator can be separately mounted on various types of supports, and the components can be connected through pipelines and various connectors, so that the designer and the user can decide whether to integrate the components or not, and detailed description is omitted.

Claims (6)

1. A hydraulic balance accumulator station set special for hydraulic transmission of a produced stepping heating furnace is characterized by comprising a single high-pressure press processing or high-pressure welding air pot (1), wherein the lower part of the air pot (1) is connected with a normally closed high-pressure ball valve, the upper part of the air pot (1) is divided into two paths, one path is connected with a high-pressure pneumatic safety valve group (2), and the other path is connected with the upper part of a bag type accumulator (5) externally connected with an air source through the high-pressure ball valve; the lower part of a bag type energy accumulator (5) with an external air source is connected with a high-pressure oil safety valve (3), the high-pressure oil safety valve (3) is provided with an overflow valve, a T port of the high-pressure oil safety valve (3) is connected to an oil return main pipe (T) of an original stepping heating furnace hydraulic system through a pipeline, and a connection point of the T port of the high-pressure oil safety valve (3) and the oil return main pipe (T) is one of three access points of the hydraulic balance energy accumulator station group and is defined as an access point I (f); a manual valve is arranged in the high-pressure oil safety valve (3) and connected with a pressure port P, the pressure port P is divided into two paths, one path is connected to a control valve (4) and then connected to an original stepping heating furnace hydraulic system through a pipeline, the connection point of the pressure port P and the original stepping heating furnace hydraulic system is two of three connection points of the hydraulic balance energy accumulator station group and is defined as a second connection point (g), the second connection point (g) is connected to a piston cavity port of a single hydraulic cylinder (9) or two hydraulic cylinders (7) of the original stepping heating furnace hydraulic system through a pipeline, the other path of the pressure port P of the high-pressure oil safety valve (3) is connected to a pressure oil main pipe of the original hydraulic system through a normally closed high-pressure ball valve through a pipeline, and the connection point of the pressure port P and the pressure oil main pipe is three connection points of the hydraulic balance energy accumulator station group; a pipeline behind a proportional valve (10) of an original stepping heating furnace hydraulic system is connected with a newly added control valve to be connected with piston cavity openings of a single hydraulic cylinder (9) or two hydraulic cylinders (7).

2. The hydraulic balance accumulator station set special for hydraulic transmission of a produced stepping heating furnace according to claim 1, wherein the high-pressure welded gas canister (1) comprises a first end cover (1-2) provided with a sewage discharge interface (1-1) and a second end cover (1-4) provided with an air inlet and outlet interface (1-5), and the first end cover (1-2) and the second end cover (1-4) are respectively welded at two ends of a canister cylinder (1-3) made of low-alloy seamless steel tube to form a single high-pressure welded gas canister (1) meeting the required pressure, capacity and position requirements.

3. The hydraulic balance energy accumulator station group special for the hydraulic transmission of the produced stepping heating furnace, according to claim 1, is characterized in that the air pot (1) processed by the high-pressure machine comprises an end cover three (1-9) provided with a sewage discharge port (1-6) and an end cover four (1-11) provided with a high-pressure air inlet and outlet (1-12);

the third end cover (1-9) and the fourth end cover (1-11) are respectively screwed and fixed at two ends of an air pot body (1-10) made of a low-alloy seamless steel pipe through fine-tooth screws;

the inner sides of the three (1-9) and four (1-11) end covers and the air tank bodies (1-10) are provided with a first sealing accessory (1-7), and the first sealing accessory (1-7) is stuck on the three (1-9) and four (1-11) end covers by using a high-strength adhesive; sealing gaskets (1-8) are arranged between the end cover three (1-9) and the end cover four (1-11) and the air tank body (1-10), and three small steel cylinders are uniformly distributed at 120 degrees in the center of the sealing gasket (1-8), so that the sealing gasket (1-8) is compressed to a certain degree to improve the sealing performance.

4. The set of hydraulic balance accumulator stations for hydraulic transmission of produced walking beam furnaces as claimed in claim 3, wherein the first sealing gaskets (1-8) are made of a sealing material with certain hardness and elasticity or a non-ferrous material with low toughness.

5. The hydraulic balance energy accumulator station group special for hydraulic transmission of the produced stepping heating furnace, as claimed in claim 1, wherein the bag type energy accumulator (5) with the external air source comprises an energy accumulator jar body (5-6), a bottom cover (5-4) is screwed on one end of the energy accumulator jar body (5-6) by a fine thread screw, an oil inlet and outlet port (5-1) is arranged on the bottom cover (5-4), and a tight and reliable seal is formed between the bottom cover (5-4) and the energy accumulator jar body (5-6) through a second sealing accessory (5-3) and a second sealing gasket (5-2); the second sealing accessory (5-3) is stuck on the bottom cover (5-4) by a high adhesive;

the bag-type energy accumulator (5) with the external air source also comprises a rubber inner container (5-7), the rubber inner container (5-7) is connected to a guide shaft (5-12) penetrating through the energy accumulator jar body (5-6) through a screw and a gasket, the guide shaft (5-12) slides in an upper cover (5-10) arranged at the other end of the energy accumulator jar body (5-6), an air inlet and outlet (5-8) is arranged on the upper cover (5-10), and the rubber inner container (5-7) is pressed on the energy accumulator jar body (5-6) by the upper cover (5-10) through a guide block (5-9); an O-shaped sealing ring is arranged on the guide blocks (5-9) to prevent leakage; a notch is arranged on the guide block (5-9), a round convex block matched with the notch is arranged on the rubber inner container (5-7), and the round convex block is embedded in the notch of the guide block (5-9) to prevent the rubber inner container (5-7) from falling off; an O-shaped sealing ring is arranged at the joint of the upper cover (5-10) and the energy accumulator tank body (5-6), and the upper cover (5-10) is screwed on the other end of the energy accumulator tank body (5-6) through a high-strength bolt and a nut, so that the upper cover (5-10) can be conveniently disassembled to replace the damaged rubber inner container (5-7); the upper cover (5-10) is provided with a guide sleeve and a sealing device (5-11), the upper cover (5-10) is also screwed with a distance measuring cylinder (5-13), and the distance measuring cylinder (5-13) is provided with a position sensor (5-14) to ensure that the rubber inner container (5-7) moves in a certain range to prompt an alarm signal.

6. The hydraulic balance energy accumulator station group special for hydraulic transmission of the produced walking beam furnace as claimed in claim 5, wherein the second sealing gasket (5-2) is made of sealing rubber with moderate strength and hardness or low-toughness nonferrous metal material; 3 steel small cylindrical distance limiting bodies are arranged in the middle of the sealing accessory II (5-3) at a distance of 120 degrees, when the sealing gasket II (5-2) is screwed down on the bottom cover (5-4), the sealing gasket II (5-2) has 1/3 compression amount, the sealing gasket II (5-2) is deformed, except for filling the gap around the sealing gasket II (5-2), a part of the sealing gasket II (5-3) overflows to the gap between the sealing accessory II (5-3) and the energy accumulator jar body (5-6) made of low-alloy seamless steel tube, when the energy accumulator jar body (5-6) is filled with high-pressure oil, the sealing accessory II (5-3) is compressed by the high-pressure oil to generate elastic deformation to extrude the sealing gasket II (5-2), and the high-pressure oil directly compresses the sealing gasket II (5-2), so that it is compressed to improve the sealing performance.

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