CN202766579U - Annular bell-type resistance furnace for heating cylindrical shell section of pressure container - Google Patents
Annular bell-type resistance furnace for heating cylindrical shell section of pressure container Download PDFInfo
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- CN202766579U CN202766579U CN 201220385868 CN201220385868U CN202766579U CN 202766579 U CN202766579 U CN 202766579U CN 201220385868 CN201220385868 CN 201220385868 CN 201220385868 U CN201220385868 U CN 201220385868U CN 202766579 U CN202766579 U CN 202766579U
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Abstract
The utility model relates to an annular bell-type resistance furnace for heating a cylindrical shell section of a pressure container and solves the problem that an existing bell-type resistance furnace is incapable of heating the inner wall and the outer wall of the cylindrical shell section at the same time. The annular bell-type resistance furnace is characterized by comprising a frame, guide rails, an outer casing, an enclosure heating element, enclosure rollers, an inner casing, an inner casing heating element, a vent cover, a furnace cover lifting device, a furnace platform, furnace platform rollers, an ejector rod, a rail, a furnace platform driving device, a contact power supply device and an anti-falling safety device. The inner casing heating element and the outer casing heating element are respectively mounted in the inner casing and the outer casing, the inner casing is mounted in the outer casing, the furnace cover lifting device and the contact power supply device are mounted on the frame and the outer casing, the inner casing heating element and the outer casing heating element are connected with the contact power supply device, a furnace platform ventilation channel is arranged in the furnace platform, the ejector rod is fixed on the top portion of the furnace platform ventilation channel, the furnace platform rollers are mounted at the bottom of the furnace platform, and the furnace platform driving device is mounted on the furnace platform. The annular bell-type resistance furnace for heating the cylindrical shell section of the pressure container is reasonable in structural design, capable of heating the inner wall and the outer wall of the cylindrical shell, and low in energy consumption.
Description
Technical field
The utility model relates to a kind of ring-like bell-type resistance furnace, especially relate to the ring-like bell-type resistance furnace of a kind of pressurized vessel shell ring thermal treatment, be exclusively used in the shell ring of large thick-wall is heat-treated, shell ring belongs to the parts in the pressurized vessel, pressurized vessel comprises upper cover, lower cover and some shell rings, pressurized vessel carries out work for adapting under the environment of high pressure, high-temperature and severe radiation, the shell ring of pressurized vessel all will carry out first several times thermal treatment.
Background technology
Large pressurized vessel is mainly used in the fields such as chemical industry, electric power, nuclear energy and gasification, liquefaction, pressurized vessel mainly is comprised of upper cover, lower cover and some shell rings, high pressure, high-temperature and severe radiation when working for adapting to pressurized vessel, the shell ring of pressurized vessel all will carry out first several times thermal treatment.
At present; shell ring thermal treatment adds heat plant and usually adopts Bogie hearth furnace or bell furnace that shell ring is heat-treated; because the shape of shell ring is very special; when shell ring heats in Bogie hearth furnace or in the bell furnace; the temperature difference of shell ring is very large; particularly the temperature difference between the outer wall of the inwall of shell ring and shell ring is very large; this is because shell ring when heating in Bogie hearth furnace or in the circular bell furnace; basically belong to unilateral heating; heat all concentrates on the outer wall of shell ring, and the heat of the inwall of shell ring mainly relies on the conduction of barrel, when the wall thickness of shell ring is very large; heat conducting process is just very slow, so that heat required chronic.Because the temperature difference between the inwall of shell ring and the outer wall of shell ring is very large, the tissue odds after Overheating Treatment in the shell ring is even, thereby affects the thermal treatment quality of shell ring; In addition, because the heat of the inwall of shell ring mainly relies on the thermal conduction of barrel, thereby reduce production efficiency, caused energy dissipation, be difficult to reach the purpose of energy-saving and emission-reduction.
Some are also arranged now to the heat treated additive method of pressurized vessel shell ring, as open day be on 03 31st, 2010, publication number is in the Chinese patent of CN101684515, disclose a kind of in-situ piecewise heat treatment method of large pressure container, this in-situ piecewise heat treatment method of large pressure container may further comprise the steps: the inner chamber of every section pressure container cylinder of the large pressurized vessel that construction is installed is set to respectively burner hearth; Since end section, one section pressure container cylinder is built in every installation, just this section pressure container cylinder is heat-treated; Then building the preceding paragraph pressure container cylinder through installing again on this section pressurized vessel of heat treated, this the preceding paragraph pressure container cylinder is heat-treated, until the highest section pressure container cylinder that construction is installed heat-treated, this heat treating method is that the inwall to cylindrical shell heats, the temperature difference of cylindrical shell is also very large, and particularly the temperature difference between the outer wall of the inwall of cylindrical shell and shell ring is also very large.
In sum, with Bogie hearth furnace or common bell furnace shell ring is heat-treated required heat-up time long, the temperature difference of shell ring inner and outer wall is large, and thermal treatment quality is not high, and energy expenditure is large, and production efficiency is low.Also there is not at present a kind of reasonable in design, can be simultaneously the inner and outer wall of shell ring be heated, the temperature difference of the inner and outer wall of shell ring is no more than 10 ℃ during heating, and is good to the thermal treatment quality of shell ring, production efficiency is high, the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment of less energy consumption.
The utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provide a kind of reasonable in design, can be simultaneously the inner and outer wall of shell ring be heated, the temperature difference of the inner and outer wall of shell ring is no more than 10 ℃ during heating, thermal treatment quality to shell ring is good, production efficiency is high, the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment of less energy consumption.
The technical scheme in the invention for solving the above technical problem is: the constructional feature of the ring-like bell-type resistance furnace of this pressurized vessel shell ring thermal treatment is: comprise frame, guide rail, outer cover, the outer cover heating unit, the outer cover roller, inner cover, the inner cover heating unit, ventilator hole cover, the bonnet lifting device, table, the table roller, push rod, track, the table drive unit, contact electric supply installation and falling-proof safety device, described outer cover heating unit is installed in the outer cover, described inner cover heating unit is installed in the inner cover, described inner cover is installed in the outer cover, be provided with the bonnet vent passages in this inner cover, one side of described ventilator hole cover is hinged on the lower end of bonnet vent passages, described guide rail vertically is fixed on the frame, described outer cover roller is installed in the outer wall of outer cover, this outer cover roller and guide rail match, described bonnet lifting device is installed on frame and the outer cover, described contact electric supply installation is installed on frame and the outer cover, and described outer cover heating unit and inner cover heating unit all are connected with the contact electric supply installation; Be provided with the table vent passages in the described table, described push rod is fixed on the top of table vent passages, described table roller is installed in the bottom of table, described table drive unit is installed on the table, this table drive unit is connected with the table roller, described table roller and track match, and described track and frame match; Described outer cover and inner cover all match with table, and the bonnet vent passages in the described inner cover and the table vent passages in the table match, and described push rod and ventilator hole cover match.
As preferably, falling-proof safety device described in the utility model comprises fall arrest electric pushrod and locking rod, be provided with the fall arrest hole on the described outer cover, described fall arrest electric pushrod and locking rod are installed on the frame, this fall arrest electric pushrod and locking rod match, and match in described locking rod and fall arrest hole.
As preferably, contact electric supply installation described in the utility model comprises receiving end, sending end, pressing plate, radiation-retarding door, power supply electric pushrod, radiation-retarding door counterweight, radiation-retarding door sprocket wheel and radiation-retarding door chain, described receiving end and pressing plate are installed in the outer wall of outer cover, described pressing plate be positioned at receiving end under, described sending end, radiation-retarding door, power supply electric pushrod and radiation-retarding door sprocket wheel are installed on the frame, and described power supply electric pushrod and sending end cooperate; Described radiation-retarding door chain is connected on the radiation-retarding door sprocket wheel, one end of described radiation-retarding door chain is fixed in the radiation-retarding door, the other end of this radiation-retarding door chain is fixed on the radiation-retarding door counterweight, and described pressing plate and radiation-retarding door cooperate, and described radiation-retarding door and sending end cooperate.
As preferably, bonnet lifting device described in the utility model comprises electric block, the bonnet lifting wire rope, deflection sheave mechanism, collar tie beam, the bonnet elevating chain, bonnet lifting sprocket wheel and bonnet lifting balancing weight, described collar tie beam is fixed on the outer wall of outer cover, described electric block, deflection sheave mechanism and bonnet lifting sprocket wheel are installed on the frame, described bonnet lifting wire rope is connected in the deflection sheave mechanism, one end of described bonnet lifting wire rope is connected on the electric block, the other end of this bonnet lifting wire rope is fixed on the collar tie beam, described bonnet elevating chain is connected on the bonnet lifting sprocket wheel, one end of described bonnet elevating chain is fixed on the collar tie beam, and the other end of this bonnet elevating chain is fixed on the bonnet lifting balancing weight.
As preferably, the quantity of falling-proof safety device described in the utility model is two covers.
As preferably, receiving end described in the utility model is provided with spherical floating mechanism, and described sending end is provided with compression spring.
As preferably, the quantity of contact electric supply installation described in the utility model is two groups.
As preferably, the quantity of bonnet lifting wire rope described in the utility model and bonnet elevating chain is four, and an end of four bonnet lifting wire ropes all is connected with an electric block, and the quantity of described bonnet lifting balancing weight is four.
The utility model compared with prior art, have the following advantages and effect: to the shell ring of large thick-wall heat-treat effective, when shell ring is heated, can the inner and outer wall of shell ring be heated simultaneously, so that the inner and outer wall of shell ring heats up synchronously, during heating, the temperature difference of the inner and outer wall of shell ring is no more than 10 ℃, heat treated quality and production efficiency all increase substantially, and energy expenditure then significantly descends.
The tradition bell furnace only has single outer cover, and the utility model not only has outer cover, also has inner cover, and the outer cover heating unit is installed in the outer cover, and the inner cover heating unit is installed in the inner cover, the inwall of inner cover heating shell ring, the outer wall of outer cover heating shell ring.When reality is used, the inside and outside wall of shell ring is heated up synchronously, according to the on-the-spot actual actual measurement of using, when with the ring-like bell-type resistance furnace of pressurized vessel shell ring of the present utility model thermal treatment the shell ring of heavy wall Seamless Pressure Vessels being heat-treated, the temperature difference of the inner and outer wall of shell ring only has 6 ℃, far below 10 ℃ temperature difference requirement of process stipulation, the temperature difference during more far below heating in the common table car type furnace.
The utility model when the shell ring of heating heavy wall because shell ring is inner and outer wall to be heated simultaneously and heats up synchronously, thus rate of heating far faster than common bell furnace or car type furnace, in theory, rate of heating of the present utility model can be fast again about.The raising of rate of heating, mean the raising of production efficiency and the decline of energy consumption, survey factually, the Comparative unit consumption of the ring-like bell-type resistance furnace of pressurized vessel shell ring of the present utility model thermal treatment is 257kW h/t, lower by 34% than the unit consumption index 390kW h/t of the first-class stove of national regulation, the energy-saving effect highly significant.
The utility model adopts an electric block to concentrate the mode of lifting, is equipped with an amount of bonnet lifting balancing weight, the reliability of stationarity, synchronism and repeated multiple times use when having guaranteed the bonnet lifting.
Carrying platform when the table in the utility model is the shell ring heating, the table drive unit can comprise four electric motor, table is by four motor drive, can walk separately, this when the heat of particularly quenching is come out of the stove, can strive for the valuable time for the lifting of workpiece.Table in the utility model is circular, and the centre is empty, and this outer wall that can guarantee inner cover when heating has good ventilation, the cooling-down effect of cooling, otherwise the endocyclic outer wall of inner cover can be overheated when long-time heating.
Contact electric supply installation in the utility model is installed on frame and the outer cover, does not arrange heating unit on the table.Inner cover and outer cover move up and down, the utility model can adopt two windings to touch electric supply installation and power, the left and right sides that electric supply installation can be distributed in body of heater is touched in this two winding, the tactile electric supply installation of every winding comprises 36 pairs and electrically contacts head, every pair of receiving end that electrically contacts head is installed on the outer cover, and sending end is installed on the frame.Contact electric supply installation in the utility model is when power supply, and the power supply electric pushrod promotes sending end, makes sending end and receiving end tight butt, finishes energising preparation work; Heat when complete, move behind the power supply electric pushrod, will move behind the sending end, sending end separates with receiving end, finishes outage, and inner cover and outer cover promote, and workpiece is come out of the stove.
Description of drawings
Fig. 1 is the structural representation of the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment among the utility model embodiment.
Fig. 2 is installed in structural representation in the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment of Fig. 1 with the shell ring workpiece.
Fig. 3 is the structural representation between table among the utility model embodiment, table roller, push rod, track and the table drive unit.
Fig. 4 is installed in structural representation among Fig. 3 with the shell ring workpiece.
Fig. 5 is the structural representation of outer cover, receiving end and pressing plate among the utility model embodiment.
Fig. 6 is the structural representation of the utility model embodiment mid frame, sending end, radiation-retarding door, power supply electric pushrod, radiation-retarding door counterweight, radiation-retarding door sprocket wheel and radiation-retarding door chain.
Fig. 7 is the structural representation of contact electric supply installation among the utility model embodiment, and at this moment, sending end and receiving end are in off-state.
Fig. 8 is the structural representation of contact electric supply installation among the utility model embodiment, and at this moment, sending end and receiving end are in connection state.
Fig. 9 is the structural representation between bonnet lifting device, outer cover and the inner cover among the utility model embodiment.
Figure 10 is the structural representation after amplify at the A place among Fig. 9.
Figure 11 is the structural representation after amplify at the B place among Figure 10.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Figure 11, the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment in the present embodiment comprises frame 1, guide rail, outer cover 2, outer cover heating unit, outer cover roller, inner cover 3, inner cover heating unit, ventilator hole cover 5, bonnet lifting device, table 6, table roller, push rod 8, track 9, table drive unit, contact electric supply installation and falling-proof safety device, and outer cover 2 and inner cover 3 are referred to as bonnet.
Outer cover heating unit in the present embodiment is installed in the outer cover 2, and the inner cover heating unit is installed in the inner cover 3.Inner cover 3 in the present embodiment is installed in the outer cover 2, be provided with bonnet vent passages 4 in this inner cover 3, one side of ventilator hole cover 5 is hinged on the lower end of bonnet vent passages 4, so that ventilator hole cover 5 can upwards rotate around pin joint, thereby reach the purpose of opening ventilator hole cover 5, under state of nature, ventilator hole cover 5 is autoshutdown under the self gravitation effect.
Guide rail in the present embodiment vertically is fixed on the frame 1, and the quantity of this guide rail is four, and four guide rails are all perpendicular to ground.Outer cover roller in the present embodiment is installed in the outer wall of outer cover 2, and the quantity of this outer cover roller is eight, and wherein, per two outer cover rollers and a guide rail match, and wherein, two outer cover rollers can slide at a guide rail.Outer cover roller on the bonnet moves along guide rail, guarantees that the lifting of bonnet is steadily reliable.
Bonnet lifting device in the present embodiment is installed on frame 1 and the outer cover 2, this bonnet lifting device comprises electric block 31, bonnet lifting wire rope 32, deflection sheave mechanism 33, collar tie beam 34, bonnet elevating chain 35, bonnet lifting sprocket wheel 36 and bonnet lifting balancing weight 37, wherein, collar tie beam 34 is fixed on the outer wall of outer cover 2, is provided with uniformly four and carries a little on collar tie beam 34.Electric block 31 in the present embodiment, deflection sheave mechanism 33 and bonnet lifting sprocket wheel 36 are installed on the frame 1, bonnet lifting wire rope 32 is connected in the deflection sheave mechanism 33, one end of bonnet lifting wire rope 32 is connected on the electric block 31, and the other end of this bonnet lifting wire rope 32 is fixed on the collar tie beam 34.Bonnet elevating chain 35 in the present embodiment is connected on the bonnet lifting sprocket wheel 36, and an end of bonnet elevating chain 35 is fixed on the collar tie beam 34, and the other end of this bonnet elevating chain 35 is fixed on the bonnet lifting balancing weight 37.Bonnet lifting wire rope 32 in the present embodiment and the quantity of bonnet elevating chain 35 all are preferably four, one end of these four bonnet lifting wire ropes 32 all is connected with same electric block 31, the quantity of bonnet lifting balancing weight 37 is preferably four, and a bonnet elevating chain 35 is corresponding with a bonnet lifting balancing weight 37.
Contact electric supply installation in the present embodiment is installed on frame 1 and the outer cover 2, and outer cover heating unit and inner cover heating unit all are connected with the contact electric supply installation.Contact electric supply installation in the present embodiment comprises receiving end 21, sending end 22, pressing plate 23, radiation-retarding door 24, power supply electric pushrod 25, radiation-retarding door counterweight 26, radiation-retarding door sprocket wheel 27 and radiation-retarding door chain 28, wherein, receiving end 21 and pressing plate 23 are installed in the outer wall of outer cover 2, and pressing plate 23 be positioned at receiving end 21 under.Sending end 22 in the present embodiment, radiation-retarding door 24, power supply electric pushrod 25 and radiation-retarding door sprocket wheel 27 are installed on the frame 1, power supply electric pushrod 25 and sending end 22 cooperate, sending end 22 can be released by power supply electric pushrod 25, so that sending end 22 is connected with receiving end 21.Radiation-retarding door chain 28 in the present embodiment is connected on the radiation-retarding door sprocket wheel 27, and an end of radiation-retarding door chain 28 is fixed in the radiation-retarding door 24, and the other end of this radiation-retarding door chain 28 is fixed on the radiation-retarding door counterweight 26.Pressing plate 23 in the present embodiment and radiation-retarding door 24 cooperate, and when pressing plate 23 moved down with outer cover 2, pressing plate 23 can withstand in the radiation-retarding door 24, so that radiation-retarding door 24 moves down.Radiation-retarding door 24 in the present embodiment and sending end 22 cooperate, and after radiation-retarding door 24 moved down, sending end 22 just can be powered electric pushrod 25 and release.Receiving end in the present embodiment can be provided with spherical floating mechanism, and sending end can be provided with compression spring, can both seamless tight butt when having guaranteed the contact of every butt contact, so that receiving end is connected connection with sending end convenient, reliable.The quantity of contact electric supply installation is preferably two groups in the utility model.
Be provided with table vent passages 7 in the table 6 in the present embodiment, push rod 8 is fixed on the top of table vent passages 7, and the table roller is installed in the bottom of table 6, and the table drive unit is installed on the table 6, this table drive unit is connected with the table roller, so that table 6 can move freely.Table roller and track 9 in the present embodiment match, and the table roller can roll at track 9, and track 9 and frame 1 in the present embodiment match so that table can run to along track 9 outer cover 2 and inner cover 3 under.Outer cover 2 in the present embodiment and inner cover 3 all match with table 6, bonnet vent passages 4 in the inner cover 3 and the table vent passages 7 in the table 6 match, when the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment in the present embodiment in when operation, bonnet vent passages 4 be positioned at table vent passages 7 directly over, and push rod 8 and ventilator hole cover 5 match, push rod 8 backs down the ventilator hole cover 5 in the bonnet vent passages 4, when inner cover and outer cover heat, freezing air upwards pulls out by the table vent passages 7 in the table and the bonnet vent passages 4 in the inner cover 3, so that the inwall of inner cover can be not overheated; When inner cover and outer cover were mentioned, the autoshutdown under Gravitative Loads of the ventilator hole cover 5 in the bonnet vent passages 4 had effectively stoped the furnace gas of high temperature to enter in the inner cover, thereby has protected the parts such as the thermopair in the inner cover, cable.
Inner cover in the present embodiment and the weight of outer cover are about 50 tons, in order to prevent that bonnet accidental falling when the high position from causing the accident, be provided with falling-proof safety device, this falling-proof safety device is arranged on the both sides on frame 1 top, falling-proof safety device in the present embodiment comprises fall arrest electric pushrod and locking rod, be provided with the fall arrest hole at outer cover 2, fall arrest electric pushrod and locking rod are installed on the frame 1, this fall arrest electric pushrod and locking rod match, match in locking rod and fall arrest hole, when bonnet is promoted to vertex, fall arrest electric pushrod in the falling-proof safety device is released locking rod, so that locking rod enters in the bonnet fall arrest hole, play the fall arrest effect.The quantity of the falling-proof safety device in the present embodiment is preferably two covers.
Bonnet in the present embodiment moves up and down the employing electric up-down, and from walking, the square section of bonnet is ring type structure to table along track 9, be divided into interior ring and outer shroud, interior ring and outer shroud have all been arranged heating unit, when heating large heavy wall shell ring, the shell ring inside and outside wall heats simultaneously, heats up synchronously.Table in the present embodiment configuration power, autonomous, table are ring structure, the centre is empty, bonnet descend with table 6 in conjunction with the time, the push rod 8 of table 6 central authorities backs down the ventilator hole cover 5 in the bonnet vent passages 4 of inner cover 3.Bonnet in the present embodiment is when heating, and freezing air upwards pulls out along the bonnet vent passages 4 in the inner cover by table 6 hollow spaces, so that the inwall of inner cover can be not overheated.When the bonnet in the present embodiment was mentioned, ventilator hole cover 5 is autoshutdown under Gravitative Loads, had stoped high-temperature furnace gas to enter the inwall of inner cover, thereby had protected the parts such as the thermopair in the inner cover, cable.
Contact electric supply installation in the present embodiment has well solved the problem of high-power, large electric current, the power supply of multi-region electrical heating element, the contact electric supply installation is comprised of some butt contacts, wherein, the receiving end 21 of contact head is installed on the bonnet, and the sending end 22 of contact head is installed on the frame 1.Contact (power supply state) between receiving end 21 and the sending end 22 and separation (off-position) realize by power supply electric pushrod 25.Every butt contact in the present embodiment adopts the form of plane contact, and the receiving end 21 of contact head is provided with spherical floating mechanism, and sending end 22 is provided with compression spring, can both seamless tight butt when having guaranteed every butt contact contact.
Bonnet lifting device in the present embodiment rises and adopts an electric block 31 to connect 4 constructions of wire rope, 4 wireline are proposed a connection by deflection sheave mechanism 33 with during collar tie beam is connected 4, and each is carried a little simultaneously by bonnet elevating chain 35 and is connected connection with bonnet lifting balancing weight.
The ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment in the present embodiment is exclusively used in heat-treats the shell ring workpiece 41 of large-scale wall thickness, during use, the shell ring workpiece 41 that needs are heat-treated places on the table 6, by the table drive unit so that table 6 move in the frame 1 along track 9, and table 6 be positioned at outer cover 2 and inner cover 3 under; By the bonnet lifting device outer cover 2 and inner cover 3 are descended, form the chamber of an annular between outer cover 2 and the inner cover 3, so that in the chamber that shell ring workpiece 41 forms between outer cover 2 and inner cover 3, outer cover 2 can heat the outer wall of shell ring workpiece 41, and inner cover 3 can heat the inwall of shell ring workpiece 41; After outer cover 2 and inner cover 3 drop to the target location, the contact electric supply installation connects, by the contact electric supply installation outer cover heating unit and inner cover heating unit are powered, so that outer cover heating unit and inner cover heating unit heat outer wall and the inwall of shell ring workpiece 41 respectively; After the thermal treatment to shell ring workpiece 41 finished, the contact electric supply installation disconnected, under the effect of bonnet lifting device, outer cover 2 and inner cover 3 rise, after outer cover 2 and inner cover 3 rise to the target location, with outer cover 2 location, improve safety performance by falling-proof safety device; Under the effect of table drive unit, so that table 6 shifts out frame 1 along track 9, then will place the target location through heat treated shell ring workpiece 41.The present embodiment is when heating shell ring workpiece 41, can the inner and outer wall of shell ring workpiece 41 be heated simultaneously, so that the inner and outer wall of shell ring workpiece 41 heats up synchronously, during heating, the temperature difference of the inner and outer wall of shell ring workpiece 41 is no more than 10 ℃, heat treated quality and production efficiency all increase substantially, and energy expenditure then significantly descends.
In addition, need to prove, the specific embodiment described in this specification sheets, the shape of its parts and components, institute's title of being named etc. can be different, and the above content described in this specification sheets only is to the explanation of the utility model structure example.Allly conceive equivalence variation or the simple change that described structure, feature and principle are done according to the utility model patent, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (8)
1. the ring-like bell-type resistance furnace of pressurized vessel shell ring thermal treatment, it is characterized in that: comprise frame, guide rail, outer cover, the outer cover heating unit, the outer cover roller, inner cover, the inner cover heating unit, ventilator hole cover, the bonnet lifting device, table, the table roller, push rod, track, the table drive unit, contact electric supply installation and falling-proof safety device, described outer cover heating unit is installed in the outer cover, described inner cover heating unit is installed in the inner cover, described inner cover is installed in the outer cover, be provided with the bonnet vent passages in this inner cover, one side of described ventilator hole cover is hinged on the lower end of bonnet vent passages, described guide rail vertically is fixed on the frame, described outer cover roller is installed in the outer wall of outer cover, this outer cover roller and guide rail match, described bonnet lifting device is installed on frame and the outer cover, described contact electric supply installation is installed on frame and the outer cover, and described outer cover heating unit and inner cover heating unit all are connected with the contact electric supply installation; Be provided with the table vent passages in the described table, described push rod is fixed on the top of table vent passages, described table roller is installed in the bottom of table, described table drive unit is installed on the table, this table drive unit is connected with the table roller, described table roller and track match, and described track and frame match; Described outer cover and inner cover all match with table, and the bonnet vent passages in the described inner cover and the table vent passages in the table match, and described push rod and ventilator hole cover match.
2. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 1 thermal treatment, it is characterized in that: described falling-proof safety device comprises fall arrest electric pushrod and locking rod, be provided with the fall arrest hole on the described outer cover, described fall arrest electric pushrod and locking rod are installed on the frame, this fall arrest electric pushrod and locking rod match, and match in described locking rod and fall arrest hole.
3. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 1 thermal treatment, it is characterized in that: described contact electric supply installation comprises receiving end, sending end, pressing plate, radiation-retarding door, power supply electric pushrod, radiation-retarding door counterweight, radiation-retarding door sprocket wheel and radiation-retarding door chain, described receiving end and pressing plate are installed in the outer wall of outer cover, described pressing plate be positioned at receiving end under, described sending end, radiation-retarding door, power supply electric pushrod and radiation-retarding door sprocket wheel are installed on the frame, and described power supply electric pushrod and sending end cooperate; Described radiation-retarding door chain is connected on the radiation-retarding door sprocket wheel, one end of described radiation-retarding door chain is fixed in the radiation-retarding door, the other end of this radiation-retarding door chain is fixed on the radiation-retarding door counterweight, and described pressing plate and radiation-retarding door cooperate, and described radiation-retarding door and sending end cooperate.
4. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 1 thermal treatment, it is characterized in that: described bonnet lifting device comprises electric block, the bonnet lifting wire rope, deflection sheave mechanism, collar tie beam, the bonnet elevating chain, bonnet lifting sprocket wheel and bonnet lifting balancing weight, described collar tie beam is fixed on the outer wall of outer cover, described electric block, deflection sheave mechanism and bonnet lifting sprocket wheel are installed on the frame, described bonnet lifting wire rope is connected in the deflection sheave mechanism, one end of described bonnet lifting wire rope is connected on the electric block, the other end of this bonnet lifting wire rope is fixed on the collar tie beam, described bonnet elevating chain is connected on the bonnet lifting sprocket wheel, one end of described bonnet elevating chain is fixed on the collar tie beam, and the other end of this bonnet elevating chain is fixed on the bonnet lifting balancing weight.
5. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 2 thermal treatment, it is characterized in that: the quantity of described falling-proof safety device is two covers.
6. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 3 thermal treatment, it is characterized in that: described receiving end is provided with spherical floating mechanism, and described sending end is provided with compression spring.
7. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 3 thermal treatment, it is characterized in that: the quantity of described contact electric supply installation is two groups.
8. the ring-like bell-type resistance furnace of pressurized vessel shell ring according to claim 4 thermal treatment, it is characterized in that: the quantity of described bonnet lifting wire rope and bonnet elevating chain is four, one end of four bonnet lifting wire ropes all is connected with an electric block, and the quantity of described bonnet lifting balancing weight is four.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220385868 CN202766579U (en) | 2012-08-06 | 2012-08-06 | Annular bell-type resistance furnace for heating cylindrical shell section of pressure container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220385868 CN202766579U (en) | 2012-08-06 | 2012-08-06 | Annular bell-type resistance furnace for heating cylindrical shell section of pressure container |
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| CN 201220385868 Withdrawn - After Issue CN202766579U (en) | 2012-08-06 | 2012-08-06 | Annular bell-type resistance furnace for heating cylindrical shell section of pressure container |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776355A (en) * | 2012-08-06 | 2012-11-14 | 中国联合工程公司 | Annular cover-type resistor furnace for pressure container tube section heat treatment |
| CN106048182A (en) * | 2016-05-27 | 2016-10-26 | 燕山大学 | All-surrounding type large-scale cylinder section induction heating furnace |
| CN109055677A (en) * | 2018-06-01 | 2018-12-21 | 燕山大学 | A kind of large-scale shell ring heating and thermal insulation furnace based on resistance heat preservation and induction heating |
| CN110114480A (en) * | 2016-12-26 | 2019-08-09 | Posco公司 | The power supply system of annealing furnace, annealing furnace steel coil heating device and the heating device |
| CN111889955A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Novel preheating device for surfacing of end face of cylinder and using method |
| CN112626445A (en) * | 2020-12-04 | 2021-04-09 | 马鞍山市恒精金属材料科技有限公司 | Novel brake disc FNC automatic muffle tank-free square bell-type furnace |
-
2012
- 2012-08-06 CN CN 201220385868 patent/CN202766579U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776355A (en) * | 2012-08-06 | 2012-11-14 | 中国联合工程公司 | Annular cover-type resistor furnace for pressure container tube section heat treatment |
| CN102776355B (en) * | 2012-08-06 | 2013-11-27 | 中国联合工程公司 | Annular cover-type resistor furnace for pressure container tube section heat treatment |
| CN106048182A (en) * | 2016-05-27 | 2016-10-26 | 燕山大学 | All-surrounding type large-scale cylinder section induction heating furnace |
| CN110114480A (en) * | 2016-12-26 | 2019-08-09 | Posco公司 | The power supply system of annealing furnace, annealing furnace steel coil heating device and the heating device |
| CN109055677A (en) * | 2018-06-01 | 2018-12-21 | 燕山大学 | A kind of large-scale shell ring heating and thermal insulation furnace based on resistance heat preservation and induction heating |
| CN111889955A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Novel preheating device for surfacing of end face of cylinder and using method |
| CN112626445A (en) * | 2020-12-04 | 2021-04-09 | 马鞍山市恒精金属材料科技有限公司 | Novel brake disc FNC automatic muffle tank-free square bell-type furnace |
| CN112626445B (en) * | 2020-12-04 | 2023-08-08 | 马鞍山市恒精金属材料科技有限公司 | Application of muffle-tank-free square bell-type furnace in brake disc FNC |
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