CN109652636B - Rod piece heat treatment equipment - Google Patents
Rod piece heat treatment equipment Download PDFInfo
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- CN109652636B CN109652636B CN201811461715.1A CN201811461715A CN109652636B CN 109652636 B CN109652636 B CN 109652636B CN 201811461715 A CN201811461715 A CN 201811461715A CN 109652636 B CN109652636 B CN 109652636B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0031—Rotary furnaces with horizontal or slightly inclined axis
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- Organic Chemistry (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a rod piece heat treatment device, which comprises a heating furnace for placing rod pieces, wherein the heating furnace is spherical, the heating furnace is hollow and has uniform wall thickness, heating oil is filled in the heating furnace, a plurality of layers of clamping rods for clamping the rod pieces are arranged in the heating furnace in parallel, the rod piece heat treatment device also comprises an outer stove for placing the heating furnace, a constant pressure control valve comprises a valve body, a control hole is arranged on the axis of the valve body, the control hole is formed by coaxially butting two conical through holes in a mirror symmetry manner, and small ports of the two through holes are integrally connected; and a sensing element for detecting the flow of fluid in the pipeline is also arranged on the pipeline between the liquid outlet pipe and the constant pressure control valve, and the sensing element is connected with the controller. The rod piece heat treatment equipment is simple and convenient to operate, can place a plurality of rod pieces and perform uniform heating at the same time, and is stable and reliable in a heat supply system and excellent in heat treatment effect.
Description
Technical Field
The invention belongs to the technical field of metal heat treatment, and particularly relates to a heat treatment tool for a rod piece.
Background
In actual production, a rod needs to be reinforced, and in the performance reinforcing process of the rods, the rods need to be heated, the conventional heating device is usually an electric heating furnace for direct heating, the rods are placed in a high-temperature furnace body and stacked in order, the rods are inconvenient to place and difficult to realize the uniform arrangement of the rods in the heating furnace, so that the rods are heated with large difference in heat treatment, the heat treatment effect is poor, the rods need to be heated for a long time in a heat preservation manner, the heating of the conventional charcoal furnace is difficult to meet the requirement, some heat treatment equipment on the market has high automation degree and good heating effect, although the temperature control is excellent, the clamping is inconvenient, the rods cannot be well adapted to the heating, one of the biggest problems is that the purchase cost is high, and the rod is neither economical nor suitable for the rods of non-precise parts, the present self-made special heat treatment equipment of each factory has the aforesaid heating inhomogeneous again, lays inconveniently, and adopts the electric heat or the interior air of charcoal burning heating furnace to heat this kind of mode of pole piece and is lower to pole piece heating efficiency, and the most crucial is that rate of heating is slower, realizes the heating of pole piece through the heating to the air and still can not satisfy the technology demand on rate of heating, and whole heating system is unstable.
Disclosure of Invention
The invention aims to solve the technical problems and provides rod piece heat treatment equipment which is simple and convenient to operate, can be used for placing a plurality of rod pieces and uniformly heating the rod pieces at the same time, and has a stable and reliable heat supply system and an excellent heat treatment effect.
The technical scheme of the invention is as follows:
a rod piece heat treatment device comprises a heating furnace for placing rod pieces, wherein the heating furnace is spherical, the heating furnace is hollow and has uniform wall thickness, heating oil is filled in the heating furnace, a plurality of layers of clamping rods for clamping the rod pieces are arranged in the heating furnace in parallel, the clamping rods are rod-shaped and are arranged at intervals to form a straight line, each clamping rod is fixed in the heating furnace through a connecting rod, a gap between two adjacent clamping rod frames is used for mounting the rod piece, the end surfaces, opposite to each other, of the two adjacent clamping rods are respectively provided with a blind hole, a pressure spring is axially arranged in each blind hole, and two ends of each rod piece are respectively correspondingly inserted into the blind holes of the two adjacent clamping rods and are in extrusion contact with the free end of the pressure spring, so that the rod pieces are clamped and fixed between the two adjacent clamping rods;
the heating furnace is positioned in a hearth of the closed outer furnace and can freely rotate in the hearth, the bottom of the hearth is connected with a high-temperature hot oil pool through a liquid outlet pipe, a ball valve, a constant-pressure control valve and an oil pump, and the hearth is also provided with a liquid return pipeline connected with the high-temperature hot oil pool; wherein the content of the first and second substances,
the constant pressure control valve comprises a valve body, a control hole is arranged on the axis of the valve body, the control hole is formed by coaxially butting two conical through holes in a mirror symmetry mode, and small ports of the two through holes are integrally connected; the valve core is arranged in the middle of the control hole and coaxial with the control hole, the valve core comprises a valve rod, an elastic reed and a pair of conical plugs, the two conical plugs are respectively arranged at two ends of the valve rod to form mirror symmetry arrangement, the middle of the valve rod is connected with the reed, the reed is connected to the joint of the two through holes, the two conical plugs are not in contact with the inner walls of the through holes where the two conical plugs are respectively arranged when the reed is in a natural state, and when the pressures at the two ends of the control hole are unequal, the reed bends towards one end with low pressure to enable the valve core to move along with the reed, the conical plug at the end with high pressure moves towards the end with low pressure to be tightly attached to the inner walls of the through holes at the side with.
And an induction element for detecting the flow of fluid in the pipeline is further arranged on the pipeline between the liquid outlet pipe and the constant pressure control valve, the induction element is connected with the controller, and when the induction element detects that the fluid in the pipeline does not flow or is within a preset flow range, the controller sends an instruction to start the alarm to give an alarm.
Furthermore, the heating oil is injected through an oil inlet pipe arranged on the heating furnace, the heating furnace is also provided with a pressure relief device, and the pressure relief device comprises a pressure relief pipe arranged on the heating furnace; the pressure relief pipe is in a round pipe shape, a tension spring is coaxially and fixedly arranged on the outer edge of a port at one end facing the outside of the heating furnace, a plug-in plug which is in a screw plug shape penetrates through the tension spring and is inserted into the pressure relief pipe to plug the pressure relief pipe, the bottom end face of a screw cap of the plug-in plug is connected with one end of the tension spring, which deviates from the furnace body, of the tension spring, and the heating furnace is under preset pressure intensity under the action of tension of the tension spring and cannot be completely ejected out of the plug-in plug.
Furthermore, a cantilever arm is further arranged on the outer wall of the free end of the pressure relief pipe along the radial direction of the pressure relief pipe, and a scale is vertically arranged on the cantilever arm; and an indicating arrow is further arranged at the outer edge of the top end of the nut along the radial direction of the nut towards the scale, and the indicating arrow can be aligned with the corresponding scale marks on the scale when the plugging head slides up and down.
Further, the part of the hearth wall on the side where the pressure relief pipe is located is made of high-temperature-resistant transparent material, and the pressure relief pipe can be directly observed through the transparent material part.
Furthermore, a thermometer, a liquid level meter and a digital display pressure sensor are arranged at the position, close to the corner, of the top end of the outer cooking range.
Further, the control hole is provided in an insert which is integrated with the valve body by screwing a seal pipe into the valve body.
Furthermore, the heating furnace rotates by the rotation of a rotating shaft fixed along the diameter outer side direction, a driven gear is arranged at one end of the rotating shaft extending out of the outer cooking range, and a mark bulge is arranged on the end face of one end of the driven gear facing the outer cooking range; the outer wall of the stove opposite to the driven gear is provided with an indicating protrusion, and when the driven gear rotates until the marking protrusion is opposite to the indicating protrusion, the pressure relief pipe is just positioned at a position which can be observed through the transparent material part.
Furthermore, two wrench jacks are respectively arranged at two ends of the driven gear along the straight radial direction, and the two wrench jacks are centrosymmetric about the circle center of the driven gear.
Furthermore, an electromagnet is arranged in the identification protrusion, and the indication protrusion is a magnet which can attract each other after the electromagnet is electrified so as to fix the heating furnace.
Further, the transparent material is 3 # material high temperature resistant glass, and the sensing element is a flow sensor.
The invention has the beneficial effects that: the invention adopts a double-layer heating furnace body structure to heat the rod pieces, the heating furnace as the second layer is spherical and can freely rotate in the hearth, when the rod pieces are installed, only one end of the rod piece is firstly inserted into one blind hole and compresses the compression spring in the blind hole, the other end of the rod piece is inserted into the other corresponding blind hole along the same trend, after the hands are loosened, the rod piece is installed on the clamping rod under the pushing action of the two compression springs, because the clamping rod is linearly arranged in the heating furnace at intervals, a plurality of rod pieces are also linearly arranged, and because the straight lines (virtual lines) for dust exhaust of the clamping rod are symmetrically, uniformly arranged at intervals in the heating furnace, all the rod pieces are uniformly arranged in the spherical heating furnace, because the heating furnace is spherical, the heating furnace always keeps moving contact with the heating oil in the hearth when the outer furnace is rotated, the heating furnace is uniformly heated, thereby making the bar heated uniformly. On the other hand, in order to ensure that the oil pressure in the furnace changes along with the temperature, a specially designed constant pressure control valve is specially arranged, when the pressure changes due to accidental faults of a hearth section on a hot oil supply pipeline or the pressure difference between two ends of the constant pressure control valve changes due to faults of a hot oil source head end (high-temperature hot oil pool), a valve core moves, a control hole is closed, the whole hot oil pipeline system is cut off, a controller gives an alarm to remind a worker of checking the faults, and when the faults are eliminated, the pressure difference between two ends of the constant pressure control valve is not generated or is kept within a certain small range, a reed is reset, the valve core is reset, the whole hot oil pipeline system is automatically communicated, and normal circulating hot oil supply is realized. The differential pressure type automatic adjusting mechanism is very simple in structure and easy to manufacture, the differential pressure value is directly related to the dynamic pipeline fluid flowing speed, the response is sensitive, the stability of the whole hot oil pipeline system can be effectively guaranteed, the oil pressure change in the hearth of the outer stove can be reflected to a certain degree, and therefore a certain reference can be provided for indirectly obtaining the temperature condition of the hot oil in the hearth (the temperature is related to the pressure intensity).
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the clamping of the rod;
FIG. 3 is a schematic diagram of a constant pressure control valve;
FIG. 4 is a schematic diagram of a configuration of the constant pressure control valve when closed;
fig. 5 is a schematic structural view of a pressure relief device.
Element number description: the device comprises a heating furnace 1, a clamping rod 2, a rod piece 3, a pressure spring 4, a connecting rod 5, an outer stove 6, a pressure relief device 7, a pressure relief pipe 701, a blocking head 702, a tension spring 703, a cantilever 704, an indication arrow 705, a scale 706, an oil outlet pipe 8, an induction element 9, a ball valve 10, a constant pressure control valve 11, an oil pump 12, a high-temperature hot oil pool 13, a driven gear 14, a wrench 15, an indication bulge 16, an identification bulge 17, a transparent material part 18, a thermometer 19, a liquid level meter 20, a digital display pressure sensor 21, a valve body 1101, a valve rod 1102, a conical plug 1103, a reed 1104 and a wrench jack 1401.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 4, a bar heat treatment apparatus comprises a heating furnace 1 for housing bars 3, the heating furnace 1 is spherical, the heating furnace 1 is hollow and has uniform wall thickness, the heating furnace 1 is filled with heating oil, a plurality of layers of clamping rods 2 for clamping rods 2 are arranged in parallel in a heating furnace 1, the clamping rods 2 are rod-shaped and are arranged at intervals to form a straight line, each clamping rod 2 is fixed in the heating furnace 1 through a connecting rod 5, a gap between two adjacent clamping rods 2 is used for mounting a rod member 3, the mutually opposite end surfaces of the two adjacent clamping rods 2 are respectively provided with a blind hole, a pressure spring 4 is axially arranged in the blind hole, and two ends of the rod piece 3 are correspondingly inserted into the blind holes of the two adjacent clamping rods 2 respectively and are in extrusion contact with the free ends of the pressure spring 4, so that the rod piece 3 is clamped and fixed between the two adjacent clamping rods 2.
Still including being used for laying the outer kitchen 6 of heating furnace 1, heating furnace 1 is located within the kitchen range of inclosed outer kitchen 6 and can freely rotate in the kitchen range, the kitchen range bottom is passed through drain pipe, ball valve 10, constant pressure control valve 11 and oil pump 12 and is linked to each other with hot oil bath 13 of high temperature, and the kitchen range still is equipped with the liquid return pipeline who links to each other with hot oil bath 13 of high temperature.
The constant pressure control valve 11 comprises a valve body 1101, a control hole is arranged on the axis of the valve body 1101, the control hole is formed by coaxially butting two conical through holes in a mirror symmetry manner, and small ports of the two through holes are integrally connected; the middle part in the control hole is also provided with a valve core coaxial with the control hole, the valve core comprises a valve rod 1102, a spring plate 1104 with elasticity and a pair of conical plugs 1103, the two conical plugs 1103 are respectively positioned at the two ends of the valve rod 1102 to form mirror symmetry arrangement, the middle part of the valve rod 1102 is connected with the spring plate 1104, the spring plate 1104 is connected at the joint of the two through holes, the two conical plugs 1103 are not contacted with the inner walls of the through holes respectively when the spring plate 1104 is in a natural state, when the pressures at the two ends of the control hole are unequal, the spring plate 1104 bends towards the end with low pressure to enable the valve core to move along with the spring plate, and the conical plug 1103 at the end with high pressure moves towards the end with low pressure to be attached to the inner walls of the through holes.
And an induction element 9 for detecting the flow of fluid in the pipeline is further arranged on the pipeline between the liquid outlet pipe and the constant pressure control valve 11, the induction element 9 is connected with the controller, and when the induction element 9 detects that the fluid in the pipeline does not flow or is within a preset flow range, the controller sends an instruction to start the alarm to give an alarm. In order to make the degree of automation higher, some automatic heating devices can be arranged according to the cost budget to continuously heat the hot oil in the outer cooking range 6, or a cooling device is arranged to cool the hot oil in the outer cooking range 6, the heating devices can be auxiliary heating such as electric heating, namely an electric heating pipe is arranged in the hot oil; for the cooling of hot oil, a cold oil injection pipeline can be additionally arranged, and a control valve on the cold oil injection pipeline is connected with the controller, so that cold oil is added to the hot oil in the outer stove 6 for cooling when the temperature change is known.
When the rod heat treatment equipment is used, because the rod 3 is heated by adopting the structure of a double-layer heating furnace 1, and the heating furnace 1 as a second layer is spherical and can freely rotate in a hearth, when the rod 3 is installed, only one end of the rod 3 is firstly inserted into one blind hole and compresses a pressure spring 4 in the blind hole, and the other end is inserted into the other corresponding blind hole, after the handle is loosened, the rod 3 is installed on a clamping rod 2 under the pushing action of two pressure springs 4, because the clamping rods 2 are linearly arranged at intervals in the heating furnace 1, a plurality of rods 3 are also linearly arranged, and because the straight lines (virtual lines) for dust discharge of the clamping rods 2 are symmetrically and uniformly arranged at intervals in the heating furnace 1 in parallel, all the rods 3 are uniformly arranged at intervals in the spherical heating furnace 1, because the heating furnace 1 is spherical, when the outer stove 6 rotates, the heating oil in the hearth keeps moving contact all the time, so that the heating furnace 1 is heated uniformly, and the rod pieces 3 are heated uniformly. On the other hand, in order to ensure that the oil pressure in the furnace changes along with the temperature, the specially designed constant pressure control valve 11 is specially arranged, when the pressure changes due to accidental faults of a hearth section on a hot oil supply pipeline or the pressure difference between two ends of the constant pressure control valve 11 changes due to faults of a hot oil source head end (a high-temperature hot oil pool 13), the valve core moves, the control hole is closed, the whole hot oil pipeline system is cut off, the controller gives an alarm to remind a worker of checking the faults, and when the faults are eliminated, no pressure difference or the pressure difference between two ends of the constant pressure control valve 11 is kept within a certain small range, the reed 1104 resets, the valve core resets, the whole hot oil pipeline system is automatically communicated, and normal circulating hot oil supply is realized. The differential pressure type automatic adjusting mechanism is very simple in structure and easy to manufacture, the differential pressure value is directly related to the dynamic pipeline fluid flowing speed, the response is sensitive, the stability of the whole hot oil pipeline system can be effectively guaranteed, the oil pressure change in the hearth of the outer stove 6 can be reflected to a certain degree, and therefore a certain reference can be provided for indirectly obtaining the temperature condition of hot oil in the hearth, and the temperature is related to the pressure. Therefore, the rod piece 3 heat treatment equipment is simple and convenient to operate, can be used for placing a plurality of rod pieces 3 and simultaneously carrying out uniform heating, and is stable and reliable in a heat supply system and excellent in heat treatment effect.
Further, the heating oil is injected through an oil inlet pipe installed on the heating furnace 1, the heating furnace 1 is further provided with a pressure relief device 7, as shown in fig. 5, the pressure relief device 7 comprises a pressure relief pipe 701 installed on the heating furnace 1; the pressure relief pipe 701 is in a circular pipe shape, a tension spring 703 is coaxially and fixedly arranged on the outer edge of a port at one end facing the outside of the heating furnace 1, a plug-screw-shaped plugging head 702 penetrates through the tension spring 703 and is inserted into the pressure relief pipe 701 to plug the pressure relief pipe 701, the bottom end face of a screw cap of the plugging head 702 is connected with one end, deviating from a furnace body, of the tension spring 703, and the plugging head 702 cannot be completely ejected out of the pressure relief pipe 701 under preset pressure intensity in the heating furnace 1 under the action of tension of the tension spring 703. The pressure relief pipe 701 protects the oil temperature in the heating furnace 1 when the pressure suddenly increases due to the over-fast increase of the oil temperature, and the pressure increase range can be preset according to the length of the plugging head 702; so as to obtain a more reasonable pressure variation range and adapt to the heat treatment requirement to the maximum extent.
Further, an arm picking 704 is further arranged on the outer wall of the free end of the pressure relief pipe 701 along the radial direction of the pressure relief pipe, and a scale 706 is vertically arranged on the arm picking 704; an indication arrow 705 is also arranged at the outer edge of the top end of the screw cap along the radial direction of the screw cap towards the scale 706, and the indication arrow 705 can be aligned with the corresponding scale marks on the scale 706 when the plugging head 702 slides up and down. The design enriches the indicating function of the pressure relief device 7, so that the situation that the pressure in the heating furnace 1 is increased or reduced can be known through the indicating arrow 705, and compared with a common sensing element and the like, the pressure indicating protection mechanism has the advantages that the heating furnace 1 is safer due to no power supply, the possible explosion caused by the contact of electric sparks and hot oil is avoided, and the double-layer structure that the heating furnace 1 is installed in the outer cooking range 6 is excellently suitable.
Further, the part of the hearth wall on the side where the pressure relief pipe 701 is located is made of a high-temperature-resistant transparent material, and the pressure relief pipe 701 can be directly observed through the transparent material part 18 so as to observe the pressure relief condition of the pressure relief device 7 and the pressure change condition in the heating furnace 1, so that the temperature change trend in the heating furnace 1 can be indirectly known, the structure is simple, and the effect is very obvious.
Further, a thermometer 19, a liquid level meter 20 and a digital display pressure sensor 21 are further provided at the top end of the outer cooking range 6 near the corners thereof, and these components are mounted on the outer cooking range 6 to assist in observing the physicochemical state of the hot oil.
Further, the control hole is arranged in an insert, and the insert is screwed into the valve body 1101 through a sealing pipe to be integrated with the valve body 1101, so that the control hole part serving as a wearing part can be replaced and maintained, the cost is reduced, and the management is facilitated.
Further, the heating furnace 1 is rotated by rotating a rotating shaft fixed along the diameter outer side direction, a driven gear 14 is arranged at one end of the rotating shaft extending out of the outer cooking range 6, and a mark bulge 17 is arranged on the end surface of one end of the driven gear 14 facing the outer cooking range 6; an indication bulge 16 is arranged on the outer wall of the stove opposite to the driven gear 14, when the driven gear 14 rotates until the identification bulge 17 is opposite to the indication bulge 16, the pressure relief pipe 701 is just positioned at a position which can be observed through the transparent material part 18, so that the heating furnace 1 is rotated to the position where the pressure relief device 7 can be observed.
Further, the driven gear 14 is provided with one wrench insertion hole 1401 at each of both ends in a straight radial direction thereof, the two wrench insertion holes 1401 are formed to be symmetrical with respect to the center of the driven gear 14, and the wrench insertion holes 1401 are provided to be manually rotated using a plate such as a zigzag so that the pressure release pipe 701 is located at a position just visible through the transparent material portion 18, so that the heating furnace 1 is rotated to a position where the pressure release device 7 can be observed.
Further, be equipped with the electro-magnet in the sign arch 17, indicate that arch 16 can attract each other and make heating furnace 1 immovable magnet for the electro-magnet behind the circular telegram, when needing to observe pressure relief device 7, directly start the electro-magnet and can let heating furnace 1 rotate to pressure relief pipe 701 and just be located the position that can observe through transparent material part 18 to rotate heating furnace 1 to the position that can observe pressure relief device 7.
Further, the transparent material is a material 3 high temperature resistant glass, the heat resistant temperature of which is as high as 1000 degrees centigrade, which is very suitable for the heat treatment temperature range of the rod 3, the sensing element 9 is a flow sensor, so as to accurately detect the fluid flowing state in the pipeline system, and the flow rate range of the detected fluid can be set according to the specific situation, such as the stiffness coefficient of the reed 1104 of the constant pressure control valve 11, the actual differential pressure operation allowable value, and the like.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A rod heat treatment apparatus comprising a heating furnace for placing rods, characterized in that: the heating furnace is spherical, the heating furnace is hollow and has uniform wall thickness, heating oil is filled in the heating furnace, a plurality of clamping rods for clamping the rod piece are arranged in the heating furnace in parallel, the clamping rods are rod-shaped and are arranged at intervals and are in a dotted line shape, each clamping rod is fixed in the heating furnace through a connecting rod, a gap between every two adjacent clamping rods is used for mounting the rod piece, the mutually opposite end surfaces of every two adjacent clamping rods are respectively and coaxially provided with a blind hole, a pressure spring is axially mounted in each blind hole along the axial direction of the blind hole, and two ends of each rod piece are respectively and correspondingly inserted into the blind holes of every two adjacent clamping rods and are in extrusion contact with the free end of the pressure spring, so that the rod piece is clamped and fixed between every two adjacent clamping rods;
the heating furnace is positioned in a hearth of the closed outer furnace and can freely rotate in the hearth, the bottom of the hearth is connected with a high-temperature hot oil pool through a liquid outlet pipe, a ball valve, a constant-pressure control valve and an oil pump, and the hearth is also provided with a liquid return pipeline connected with the high-temperature hot oil pool; wherein the content of the first and second substances,
the constant pressure control valve comprises a valve body, a through control hole is arranged on the axis of the valve body, the control hole is formed by butt-jointing two conical through holes in a mirror symmetry manner, and small ports of the two through holes are integrally connected; the middle part in the control hole is also provided with a valve core coaxial with the control hole, the valve core comprises a valve rod, an elastic reed and a pair of conical plugs, the two conical plugs are respectively positioned at two ends of the valve rod to form mirror symmetry arrangement, the middle part of the valve rod is connected with the reed, the reed is connected at the joint of the two through holes, the two conical plugs are not contacted with the inner walls of the through holes respectively when the reed is in a natural state, and when the pressures at the two ends of the control hole are unequal, the reed bends towards one end with low pressure to enable the valve core to move along with the reed, the conical plug at one end with high pressure moves towards one end with low pressure to be tightly attached to the inner walls of the through holes at one side with high pressure;
and an induction element for detecting the flow of fluid in the pipeline is further arranged on the pipeline between the liquid outlet pipe and the constant pressure control valve, the induction element is connected with the controller, and when the induction element detects that the fluid in the pipeline does not flow or is within a preset flow range, the controller sends an instruction to start the alarm to give an alarm.
2. The rod heat treatment apparatus according to claim 1, wherein: the heating oil is injected through an oil inlet pipe arranged on the heating furnace; still be equipped with pressure relief device on the heating furnace, pressure relief device is the pipe form including installing the pressure relief pipe on the heating furnace, and the pressure relief pipe is the pipe form, and is fixed being equipped with an extension spring coaxially on its one end port outer fringe towards the heating furnace outside, and the shutoff head that is the plug screw form passes the extension spring and inserts plug up the pressure relief pipe in, and the nut bottom face of shutoff head with the extension spring deviates from the one end of furnace body and links to each other be in under the tensile force effect of extension spring in the heating furnace under predetermined pressure can not with the complete ejecting pressure relief pipe of shutoff head.
3. The rod heat treatment apparatus according to claim 2, wherein: the outer wall of the free end of the pressure relief pipe is also provided with a cantilever arm along the radial direction of the pressure relief pipe, and the cantilever arm is vertically provided with a scale; and an indicating arrow is arranged at the outer edge of the top end of the nut along the radial direction of the nut towards the scale and can be aligned with the corresponding scale mark on the scale when the plugging head slides up and down.
4. The rod heat treatment apparatus according to claim 2 or 3, wherein: the part of the hearth wall on the side where the pressure relief pipe is located is made of high-temperature-resistant transparent material, and the pressure relief pipe can be directly observed through the transparent material part.
5. The rod heat treatment apparatus according to claim 1, wherein: the top end of the outer cooking range is provided with a thermometer, a liquid level meter and a digital display pressure sensor at the position close to the corner.
6. The rod heat treatment apparatus according to claim 1, wherein: the control hole is arranged in an insert which is screwed into the valve body through a sealing pipe to form a whole with the valve body.
7. The rod heat treatment apparatus according to claim 4, wherein: the heating furnace rotates by the rotation of a rotating shaft fixed along the direction of the outer side of the diameter, a driven gear is arranged at one end of the rotating shaft extending out of the outer cooking range, and a mark bulge is arranged on the end face of one end, facing the outer cooking range, of the driven gear; the outer wall of the stove opposite to the driven gear is provided with an indicating protrusion, and when the driven gear rotates until the marking protrusion is opposite to the indicating protrusion, the pressure relief pipe is just positioned at a position which can be observed through the transparent material part.
8. The rod heat treatment apparatus according to claim 7, wherein: the driven gear is provided with a wrench jack along the two ends in the straight radial direction, and the two wrench jacks are centrosymmetric about the circle center of the driven gear.
9. The rod heat treatment apparatus according to claim 7, wherein: the mark protrusion is internally provided with an electromagnet, and the indication protrusion is a magnet which can attract each other after the electromagnet is electrified so as to fix the heating furnace.
10. The rod heat treatment apparatus according to claim 4, wherein: the transparent material is 3 # material high temperature resistant glass, and the sensing element is a flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811461715.1A CN109652636B (en) | 2018-12-02 | 2018-12-02 | Rod piece heat treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811461715.1A CN109652636B (en) | 2018-12-02 | 2018-12-02 | Rod piece heat treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109652636A CN109652636A (en) | 2019-04-19 |
| CN109652636B true CN109652636B (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811461715.1A Active CN109652636B (en) | 2018-12-02 | 2018-12-02 | Rod piece heat treatment equipment |
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Effective date of registration: 20230727 Address after: 237000 Plant 5, Lu'an Zhiyuan Machinery Manufacturing Co., Ltd., Xu Jishen Road, Lu'an Economic and Technological Development Zone, Anhui Province Patentee after: Lu'an Zhipeng Metal Processing Co.,Ltd. Address before: 237000 Xu Jishen Road, Economic Development Zone, Lu'an City, Anhui Province Patentee before: LIUAN ZHIYUAN MACHINERY MFG Co.,Ltd. |
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