Quenching device for oil machinery accessory production and quenching method thereof

Abstract

This invention relates to the field of quenching technology, specifically to a quenching device and method for producing petroleum machinery parts. The upper end of the protective cover is provided with multiple sets of vents arranged in a circumferential array. An exhaust pump is installed above each vent. The protective cover is installed at the upper end of the quenching cooling pool. A float ring driven by a telescopic rod is installed at the lower end of the protective cover. The float ring is flush with the upper liquid level of the quenching cooling pool. A water pump is installed in the float ring to draw water outwards. The beneficial effects are: by adding a device with both air and water extraction to the existing quenching device, the purpose of quickly discharging water vapor is achieved, preventing water vapor from accumulating and liquefying on the workpiece surface. Simultaneously, the water extraction device creates rapid convection, disrupting the thermal insulation environment and forming a rapid cooling and quenching process, thereby greatly improving the quenching quality.

Description

Technical Field

[0001] This invention relates to the field of quenching technology, specifically to a quenching device and quenching method for the production of petroleum machinery parts. Background Technology

[0002] During the production and casting process of petroleum machinery and equipment, the formed workpieces need to be quenched to improve their performance.

[0003] Quenching is the process of heating a workpiece to fully austenitize it, followed by rapid cooling to achieve the desired hardening effect.

[0004] However, in the actual quenching process, due to the extremely high temperature difference, the cooling water rapidly vaporizes and forms water vapor. This creates a high-temperature water flow around the cooling water surrounding the workpiece, forming a thermally insulated environment. This affects the further rapid cooling of the workpiece and consequently impacts the quenching effect. Summary of the Invention

[0005] The purpose of this invention is to provide a quenching device and quenching method for the production of petroleum machinery parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A quenching device for producing petroleum machinery parts, the quenching device comprising:

[0008] The protective cover has multiple sets of exhaust ports arranged in a circular array at its upper end, and an exhaust pump is installed at the upper end of the exhaust ports. The protective cover is installed at the upper end of the quenching cooling pool, and a float ring driven by a telescopic rod is installed at the lower end of the protective cover. The float ring is flush with the liquid surface at the upper end of the quenching cooling pool, and a water pump is installed in the float ring to draw water to the outside of the float ring.

[0009] The clamping assembly includes a connecting rod and a hook. The connecting rod is fixedly inserted into the middle of the protective cover. One end of the connecting rod is connected to a lifting device, and the other end of the connecting rod extends into the inner cavity of the protective cover. The end of the connecting rod is provided with a hook for hanging the quenched workpiece.

[0010] Preferably, a stepped groove is provided in the middle of the upper end of the protective cover, and the connecting rod is inserted into the stepped groove.

[0011] Preferably, the end of the connecting rod is rotatably connected to the hook, and the free end of the hook and the side wall of the connecting rod are respectively provided with a first hanging ring and a second hanging ring. The first hanging ring and the second hanging ring are connected by a turnbuckle, and the turnbuckle is closed at the upper end of the opening of the hook.

[0012] Preferably, the inner side of the float ring is provided with a water pumping pipe extending to the lower end of the liquid surface in the quenching cooling pool. The water pumping pipe is connected to the input end of the water pump, and the output end of the water pump is connected to a drain pipe. The drain pipe extends to the outside of the protective cover and is located at the upper end of the liquid surface in the quenching cooling pool.

[0013] Preferably, the lower end of the protective cover is provided with a lifting groove with an annular cross section, and the outer edge of the lifting groove is fixedly connected by four sets of mounting rods distributed in a circumferential array.

[0014] Preferably, the telescopic rod is fixed to the upper end of the lifting groove, and a folded mesh plate is provided at the lower end of the float ring.

[0015] Preferably, the upper end of the protective cover is provided with an annular heat dissipation ring, the lower end of the heat dissipation ring is provided with multiple sets of connecting air pipes that connect to the exhaust port, and the inner cavity of the heat dissipation ring is provided with an annular inner cavity.

[0016] Preferably, a buffer tank is provided at the upper end of the protective cover, and the buffer tank is connected to the inner cavity of the annulus through a connecting pipe. An exhaust pump is provided at the upper end of the buffer tank.

[0017] Preferably, the folding mesh panel is configured as a multi-set mesh panel structure that folds together, with adjacent mesh panels being rotatably connected by pins.

[0018] A quenching method based on the above-mentioned quenching apparatus for producing petroleum machinery parts, the quenching method comprising the following steps:

[0019] Height adjustment: Adjust the height of the float ring according to the size of the quenched part so that the float ring is located at the upper end of the liquid surface after the quenched part is completely submerged.

[0020] The hoisting quenching process involves using hooks to attach and install the quenched parts, and then using a hoisting device to hoist the protective cover onto the quenching cooling pool, allowing the quenched parts to cool down rapidly.

[0021] During quenching, rapid cooling generates a large amount of water vapor and heat waves. These water vapor and heat waves can easily create a thermal insulation environment around the workpiece, thus affecting further rapid cooling. By quickly removing the water vapor using an air pump and using a water pump in the float ring to achieve rapid convection of water flow inside and outside the protective cover, the thermal insulation is broken, allowing for further rapid cooling of the quenched parts.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] This invention achieves rapid removal of water vapor by adding a device with air extraction and water extraction to the existing quenching equipment, thus preventing water vapor from accumulating and liquefying on the workpiece surface. At the same time, the water extraction device creates rapid convection, disrupting the thermal insulation environment and enabling rapid cooling and quenching, thereby greatly improving the quality of quenching. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 3 This is a three-dimensional structural side view of the present invention.

[0027] In the diagram: 1. Protective cover; 2. Connecting rod; 3. Hook; 4. Step groove; 5. Turnbuckle; 6. First hanging ring; 7. Second hanging ring; 8. Exhaust port; 9. Heat dissipation ring; 10. Connecting air pipe; 11. Inner cavity of the circular ring; 12. Connecting pipe; 13. Buffer tank; 14. Exhaust pump; 15. Lifting groove; 16. Float ring; 17. Telescopic rod; 18. Drain pipe; 19. Pumping pipe; 20. Folded mesh panel; 21. Mounting rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 3 The present invention provides a technical solution:

[0030] Example 1:

[0031] A quenching device for producing petroleum machinery parts, the quenching device includes a protective cover 1 and a clamping assembly.

[0032] The upper end of the protective cover 1 is provided with multiple sets of exhaust ports 8 arranged in a circular array. An exhaust pump 14 is provided at the upper end of the exhaust ports 8. The protective cover 1 is installed at the upper end of the quenching cooling pool. The lower end of the protective cover 1 is provided with a float ring 16 driven by a telescopic rod 17. The float ring 16 is flush with the upper liquid level of the quenching cooling pool. A water pump is provided in the float ring 16 to pump water to the outside of the float ring 16.

[0033] By setting up a float ring 16 with a water pump, the high-temperature water in contact with the quenched workpiece is quickly pumped away, forming rapid convection inside and outside the protective cover 1, thereby breaking the underwater thermal insulation environment and increasing the cooling speed. The exhaust pump 14 is used to quickly discharge the vaporized water vapor.

[0034] The clamping assembly includes a connecting rod 2 and a hook 3. The connecting rod 2 is fixedly inserted into the middle of the protective cover 1. One end of the connecting rod 2 is connected to the hoisting device, and the other end of the connecting rod 2 extends into the inner cavity of the protective cover 1. The end of the connecting rod 2 is provided with a hook 3 for hanging the quenched workpiece.

[0035] Hook 3 is used to hang and hoist the quenched workpiece.

[0036] Example 2:

[0037] Based on Embodiment 1, a stepped groove 4 is provided in the middle of the upper end of the protective cover 1, and the connecting rod 2 is inserted into the stepped groove 4.

[0038] The connecting rod 2 is installed through the stepped groove 4.

[0039] The end of the connecting rod 2 is rotatably connected to the hook 3. The free end of the hook 3 and the side wall of the connecting rod 2 are respectively provided with a first hanging ring 6 and a second hanging ring 7. The first hanging ring 6 and the second hanging ring 7 are connected by a turnbuckle 5. The turnbuckle 5 is closed at the upper end of the opening of the hook 3.

[0040] By setting up turnbuckles 5 and rotating hooks 3, the opening angle of hooks 3 can be adjusted to form a closed hanging assembly, preventing the workpiece from falling off and improving the safety of hanging and hoisting.

[0041] Example 3:

[0042] Based on Example 2, a water pumping pipe 19 extending to the lower end of the liquid surface in the quenching cooling pool is provided on the inner side of the float ring 16. The water pumping pipe 19 is connected to the input end of the water pump, and the output end of the water pump is connected to the drain pipe 18. The drain pipe 18 extends to the outer side of the protective cover 1 and is located at the upper end of the liquid surface in the quenching cooling pool.

[0043] By coordinating the drain pipe 19 and the pumping pipe 19, a circulating pumping convection is formed.

[0044] Example 4:

[0045] Based on embodiment 3, the lower end of the protective cover 1 is provided with a lifting groove 15 with a circular cross section. The outer edge of the lifting groove 15 is fixedly connected by four sets of mounting rods 21 distributed in a circular array. The telescopic rod 17 is fixed to the upper end of the lifting groove 15. The lower end of the float ring 16 is provided with a folded net plate 20. The folded net plate 20 is configured as a multi-set net plate structure that folds with each other. Adjacent net plates are rotatably connected by pins.

[0046] The height of the float ring 16 can be adjusted by setting the telescopic rod 17, and the high-temperature quenched workpiece can be protected by setting the folded mesh plate 20 to avoid high-temperature burns.

[0047] Example 5:

[0048] Based on embodiment 4, the upper end of the protective cover 1 is provided with an annular heat dissipation ring 9, the lower end of the heat dissipation ring 9 is provided with multiple sets of connecting air pipes 10 that connect to the exhaust port 8, the inner cavity of the heat dissipation ring 9 is provided with an annular inner cavity 11, the upper end of the protective cover 1 is provided with a buffer tank 13, the buffer tank 13 and the annular inner cavity 11 are connected by a connecting pipe 12, and the upper end of the buffer tank 13 is provided with an exhaust pump 14.

[0049] By setting up a heat-dissipating ring 9 to reduce the temperature of water vapor and by setting up a buffer tank 13 to reduce the flow rate of water vapor, the impact of water vapor on the construction environment is reduced, and the protection of construction personnel is improved.

[0050] A quenching method based on the aforementioned quenching apparatus for producing petroleum machinery parts, the quenching method comprising the following steps:

[0051] Height adjustment: Adjust the height of the float ring 16 according to the size of the quenched part so that the float ring 16 is located at the upper end of the liquid surface after the quenched part is completely submerged.

[0052] The quenching process involves using hooks to attach and install the quenched parts, and then using a hoisting device to hoist the protective cover 1 onto the quenching cooling pool, allowing the quenched parts to cool down quickly.

[0053] During the quenching process, a large amount of water vapor and heat waves are generated during rapid cooling. These water vapor and heat waves can easily form a thermal insulation environment around the workpiece, thus affecting the further rapid cooling of the workpiece. The water vapor is quickly removed by the air pump, and the water pump in the float ring 16 realizes the rapid convection of water flow inside and outside the protective cover 1, thereby breaking the thermal insulation and achieving further rapid cooling of the quenched part.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quenching device for producing petroleum machinery parts, characterized in that: The quenching device includes: The protective cover (1) has multiple sets of exhaust ports (8) arranged in a circular array at its upper end. An exhaust pump (14) is provided at the upper end of the exhaust port (8). The protective cover (1) is installed at the upper end of the quenching cooling pool. A float ring (16) driven by a telescopic rod (17) is provided at the lower end of the protective cover (1). The float ring (16) is flush with the liquid surface at the upper end of the quenching cooling pool. A water pump is provided in the float ring (16) to pump water to the outside of the float ring (16). The clamping assembly includes a connecting rod (2) and a hook (3). The connecting rod (2) is fixedly inserted into the middle of the protective cover (1). One end of the connecting rod (2) is connected to the hoisting device, and the other end of the connecting rod (2) extends into the inner cavity of the protective cover (1). The end of the connecting rod (2) is provided with a hook (3) for hanging the quenched workpiece. The lower end of the protective cover (1) is provided with a lifting groove (15) with a circular cross section. The outer edge of the lifting groove (15) is fixedly connected by four sets of mounting rods (21) distributed in a circular array. The telescopic rod (17) is fixed at the upper end of the lifting groove (15), and the lower end of the float ring (16) is provided with a folded mesh plate (20). The inner side of the float ring (16) is provided with a water pumping pipe (19) extending to the lower end of the liquid surface of the quenching cooling pool. The water pumping pipe (19) is connected to the input end of the water pump, and the output end of the water pump is connected to the drain pipe (18). The drain pipe (18) extends to the outside of the protective cover (1) and is located at the upper end of the liquid surface of the quenching cooling pool.

2. The quenching device for producing petroleum machinery parts according to claim 1, characterized in that: The upper middle of the protective cover (1) is provided with a stepped groove (4), and the connecting rod (2) is inserted into the stepped groove (4).

3. The quenching device for producing petroleum machinery parts according to claim 2, characterized in that: The end of the connecting rod (2) is rotatably connected to the hook (3). The free end of the hook (3) and the side wall of the connecting rod (2) are respectively provided with a first hanging ring (6) and a second hanging ring (7). The first hanging ring (6) and the second hanging ring (7) are connected by a turnbuckle (5). The turnbuckle (5) is closed at the upper end of the opening of the hook (3).

4. The quenching device for producing petroleum machinery parts according to claim 1, characterized in that: The upper end of the protective cover (1) is provided with a circular heat dissipation ring (9), the lower end of the heat dissipation ring (9) is provided with multiple sets of connecting air pipes (10) that connect to the exhaust port (8), and the inner cavity of the heat dissipation ring (9) is provided with a circular inner cavity (11).

5. A quenching device for producing petroleum machinery parts according to claim 4, characterized in that: The upper end of the protective cover (1) is provided with a buffer tank (13), and the buffer tank (13) is connected to the inner cavity of the annulus (11) through a connecting pipe (12). The upper end of the buffer tank (13) is provided with an exhaust pump (14).

6. The quenching device for producing petroleum machinery parts according to claim 1, characterized in that: The folded mesh plate (20) is configured as a multi-set mesh plate structure that folds together, and adjacent mesh plates are connected by a pin.

7. A quenching method implemented by a quenching device for producing petroleum machinery parts according to any one of claims 1-6, characterized in that: The quenching method includes the following steps: Height adjustment: Adjust the height of the float ring (16) according to the size of the quenched part so that the float ring (16) is located at the upper end of the liquid surface after the quenched part is completely submerged. The quenching process involves hanging and installing the quenched parts using hooks, and then using a hoisting device to hoist the protective cover (1) onto the quenching cooling pool to allow the quenched parts to cool down quickly. Quenching adjustment: During the rapid cooling of quenching, a large amount of water vapor and heat waves are generated. The generated water vapor and heat waves can easily form a thermal insulation environment around the workpiece, thereby affecting the further rapid cooling of the workpiece. Water vapor is quickly removed by the air pump (14), and the water pump in the float ring (16) realizes the rapid convection of water flow inside and outside the protective cover (1), thereby achieving the purpose of breaking the thermal insulation and realizing the further rapid cooling of the quenched part.

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