Quenching furnace for valve accessory machining

Abstract

The utility model is applicable to the technical field of valve accessory processing, and provides a quenching furnace for valve accessory processing, which comprises a furnace box, and a hearth and an electric heating element for quenching and heating are arranged in the furnace box; the temperature controller is used for regulating and controlling the temperature of the electric heating element and is fixedly mounted at the top of the furnace box; the plurality of placing plates are used for placing valve accessories to be quenched and are all arranged in the hearth; the sealing furnace door is used for sealing the hearth and is arranged at an inlet of the hearth, and one side of the sealing furnace door is fixedly connected with the placing plates. The quenching furnace for valve accessory machining has a conventional quenching function, and the risk that workers are injured due to contact with the high-temperature furnace door is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve fittings processing, in particular to a quenching furnace for valve fittings processing. Background Art

[0002] The quenching furnace for valve parts processing is a heating equipment specially used for quenching valve parts. Quenching is a heat treatment process that changes the internal structure and performance of metal materials through rapid heating and cooling. In the processing of valve parts, quenching can improve the hardness, strength and wear resistance of the material, thereby meeting the use requirements of the valve in various working environments.

[0003] However, traditional quenching furnace designs often rely on manual operation during operation, especially the opening and closing of the furnace door, which means that the operator needs to manually pull or turn the furnace door handle to open or close the furnace door, which not only increases the cumbersomeness of the operation, but also may pose a risk of scalding to the operator in a high temperature environment. Utility Model Content

[0004] The utility model provides a quenching furnace for processing valve accessories, aiming to solve the problem that manual opening and closing of a furnace door of an existing quenching furnace easily causes injuries to workers.

[0005] The utility model is implemented as follows: a quenching furnace for valve fittings processing comprises: a furnace box, wherein a furnace chamber and an electric heating element for quenching and heating are arranged in the furnace box; a temperature controller for adjusting the temperature of the electric heating element, wherein the temperature controller is fixedly mounted on the top of the furnace box; a plurality of placement plates for placing valve fittings to be quenched, wherein the plurality of placement plates are arranged in the furnace chamber; a sealed furnace door for sealing the furnace chamber, wherein the sealed furnace door is arranged at the entrance of the furnace chamber, and the inner side of the sealed furnace door is fixedly connected to the plurality of placement plates; an electric telescopic rod for adjusting the opening and closing of the sealed furnace door, wherein the electric telescopic rod is fixedly mounted on both sides of the furnace box, and a connecting plate is fixedly mounted on the output rod of the electric telescopic rod, wherein one side of the connecting plate is fixedly connected to the sealed furnace door; a ventilation and cooling mechanism for supplying air to the furnace chamber, wherein the ventilation and cooling mechanism is arranged on the furnace box.

[0006] Preferably, the ventilation and cooling mechanism includes: a fan fixedly installed at the bottom of the furnace box; an air supply pipe fixedly installed on the air outlet end of the fan, the air outlet end of the air supply pipe being fixedly connected to the furnace box; an exhaust pipe fixedly installed on the top of the furnace box; and solenoid valves respectively arranged on the exhaust pipe and the air supply pipe.

[0007] Preferably, the fan is provided with a filtering mechanism for filtering dust and impurities, and the filtering mechanism comprises: a filter box fixedly connected to the air inlet end of the fan; a detachable filter plate arranged in the filter box; and an air inlet pipe fixedly connected to the air inlet end of the filter box.

[0008] Preferably, a sealed inspection door is provided on one side of the filter box, a hinge and a screw handle lock are provided on the inspection door, and the hinge is fixedly connected to the filter box.

[0009] Preferably, a protective frame is fixedly installed on the top of the placement plate, and a plurality of air holes are symmetrically opened on the placement plate.

[0010] Preferably, the furnace box and the furnace are both provided with air inlet holes and exhaust holes for air intake and exhaust, the air inlet holes are matched with the air supply pipe, and the exhaust holes are matched with the exhaust pipe.

[0011] Preferably, the electric heating element is a spiral formed by winding iron-chromium-aluminum alloy wire, and the furnace is a rectangle made of high-aluminum, alumina polylight or silicon carbide refractory material.

[0012] Compared with the related art, the quenching furnace for valve fittings processing provided by the utility model has the following beneficial effects:

[0013] By connecting the electric telescopic rod with the sealed furnace door, the furnace door can be opened and closed automatically, which not only greatly improves work efficiency, but also reduces the risk of workers being injured by contact with the high-temperature furnace door. The setting of the ventilation and cooling mechanism ensures that the temperature and pressure in the furnace are within a safe range, avoiding safety accidents caused by high temperature or high pressure. The filtering mechanism effectively filters dust and impurities in the air, protects the fan and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of a quenching furnace for valve fittings processing provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the sealing door and the placement plate in the utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the middle filter box of the utility model.

[0018] Figure numerals: 1. furnace box; 2. furnace chamber; 3. electric heating element; 4. thermostat; 5. placement plate; 6. sealed furnace door; 7. electric telescopic rod; 8. connecting plate; 9. fan; 10. air supply duct; 11. exhaust pipe; 12. solenoid valve; 13. filter box; 14. filter plate; 15. air inlet pipe; 16. inspection door; 17. hinge. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model embodiment provides a quenching furnace for valve parts processing, such as Figure 1-4 As shown, the quenching furnace for valve fittings processing comprises: a furnace box 1, wherein a furnace chamber 2 and an electric heating element 3 for quenching and heating are arranged in the furnace box 1; a thermostat 4 for adjusting the temperature of the electric heating element 3, wherein the thermostat 4 is fixedly mounted on the top of the furnace box 1; a plurality of placement plates 5 for placing valve fittings to be quenched, wherein the plurality of placement plates 5 are arranged in the furnace chamber 2; a sealed furnace door 6 for sealing the furnace chamber 2, wherein the sealed furnace door 6 is arranged at the entrance of the furnace chamber 2, and the inner side of the sealed furnace door 6 is fixedly connected to the plurality of placement plates 5; an electric telescopic rod 7 for adjusting the opening and closing of the sealed furnace door 6, wherein the electric telescopic rod 7 is fixedly mounted on both sides of the furnace box 1, and a connecting plate 8 is fixedly mounted on the output rod of the electric telescopic rod 7, wherein one side of the connecting plate 8 is fixedly connected to the sealed furnace door 6; a ventilation and cooling mechanism for supplying air into the furnace chamber 2, wherein the ventilation and cooling mechanism is arranged on the furnace box 1.

[0022] It should be noted that the traditional quenching furnace requires the operator to personally walk to the furnace door and manually pull or turn the furnace door handle to open or close the furnace door; this operation method is not only time-consuming, but also significantly increases the workload when handling multiple valve accessories; manual operation means that the progress and efficiency of the entire process largely depends on the operator's physical strength and proficiency; under long-term or high-intensity working conditions, this may cause operator fatigue, which in turn affects work efficiency and product quality; the quenching furnace will generate high temperatures during operation, and the temperature around the furnace door is often very high; in this environment, the operator needs to directly touch the furnace door handle to operate the furnace door, which greatly increases the risk of burns; at the moment of opening the furnace door, due to the extremely high temperature around the furnace door, the operator's hands can easily touch the high-temperature part, causing instantaneous burns; such burns are often more serious, requiring emergency medical treatment, and may have long-term effects on the operator's work and life;

[0023] In this embodiment, the valve fittings to be quenched are placed on the placement plate 5 to ensure that the valve fittings are placed in the appropriate position in the furnace 2; the electric heating element 3 is started, and the temperature is adjusted by the thermostat 4 to gradually increase the temperature in the furnace 2 to the required quenching temperature; during the heating process, the sealed furnace door 6 is kept closed, and the opening and closing of the sealed furnace door 6 can be conveniently controlled by the telescopic function of the electric telescopic rod 7; when the temperature in the furnace 2 reaches the set value, it is maintained for a certain period of time to allow the valve fittings to be fully heated; then, the sealed furnace door 6 is opened by controlling the electric telescopic rod 7 to quickly supply air to the furnace 2 to achieve the quenching treatment of the valve fittings; quenching After completion, continue ventilation and cooling to cool the valve accessories to a safe temperature; then, the operator can safely open the sealed furnace door 6 and take out the quenched valve accessories; the opening and closing of the sealed furnace door 6 is controlled by the electric telescopic rod 7, which realizes automatic operation, greatly reduces the tedious process of the operator manually opening and closing the furnace door, and improves work efficiency; since the opening and closing of the furnace door is electrically controlled, the operator does not need to directly contact the high-temperature furnace door, thereby greatly reducing the risk of scalding; the electric heating element 3 is precisely regulated by the thermostat 4, which can ensure that the temperature in the furnace 2 is stable within the required quenching temperature range, thereby improving the quality and stability of the quenching process.

[0024] In a further preferred embodiment of the utility model, the ventilation and cooling mechanism includes: a fan 9 fixedly installed at the bottom of the furnace box 1; an air supply pipe 10 fixedly installed on the air outlet end of the fan 9, and the air outlet end of the air supply pipe 10 is fixedly connected to the furnace box 1; an exhaust pipe 11 fixedly installed on the top of the furnace box 1; and solenoid valves 12 respectively arranged on the exhaust pipe 11 and the air supply pipe 10.

[0025] In this embodiment, when the temperature in the furnace 2 reaches the temperature required for quenching and the valve accessories have been maintained for a period of time, the fan 9 is started, and the cold air generated by the fan 9 is sent into the furnace 2 through the air supply pipe 10 for ventilation and cooling; since the cold air quickly contacts the high-temperature valve accessories, a rapid and uniform cooling effect is achieved; through the design of the ventilation and cooling mechanism, it can be ensured that the temperature and pressure in the furnace 2 are within a safe range, avoiding safety accidents caused by high temperature or high pressure.

[0026] In a further preferred embodiment of the utility model, the fan 9 is provided with a filtering mechanism for filtering dust and impurities, and the filtering mechanism includes: a filter box 13 fixedly connected to the air inlet end of the fan 9; a detachable filter plate 14 arranged in the filter box 13; and an air inlet pipe 15 fixedly connected to the air inlet end of the filter box 13.

[0027] In this embodiment, before the fan 9 starts working, the external air first enters the filter box 13 through the air inlet pipe 15; dust and impurity filtration: when the air flows through the filter box 13, the detachable filter plate 14 traps the dust and impurities in the air on its surface, and only allows clean air to pass; the clean air filtered by the filter plate 14 is sucked into the fan 9 and sent into the furnace 2 through the air supply pipe 10 for quenching treatment; as time goes by, the dust and impurities on the filter plate 14 will gradually accumulate, affecting its filtering effect. At this time, the filter plate 14 can be easily removed and replaced to maintain its good filtering performance; by setting a filtering mechanism, the dust and impurities in the air entering the fan 9 can be effectively filtered out, preventing these impurities from entering the inside of the fan 9, thereby extending the service life of the fan 9.

[0028] In a further preferred embodiment of the utility model, a sealed inspection door 16 is provided on one side of the filter box 13 , and a hinge 17 and a screw handle lock are provided on the inspection door 16 , and the hinge 17 is fixedly connected to the filter box 13 .

[0029] In this embodiment, when the filtering mechanism is working normally, the sealed inspection door 16 remains closed, and the sealing of the inspection door 16 is ensured by turning the handle lock to prevent dust and impurities from entering the filter box 13; when the detachable filter plate 14 inside the filter box 13 needs to be replaced or cleaned, the operator can open the handle lock, and then open the inspection door 16 through the rotation function of the hinge 17 to perform necessary maintenance operations on the filter plate 14; after completing the replacement or cleaning of the filter plate 14, the operator closes the inspection door 16 and re-locks it with the handle lock to ensure the sealing of the inspection door 16 to prevent external dust and impurities from entering the filter box 13 again.

[0030] In a further preferred embodiment of the present invention, a protective frame is fixedly installed on the top of the placement plate 5, and a plurality of ventilation holes are symmetrically opened on the placement plate 5.

[0031] In this embodiment, the valve accessories to be quenched are placed on the placement plate 5 to ensure that the valve accessories are located in the protective frame to prevent displacement due to thermal stress or airflow during the quenching process. The setting of the air holes allows air to flow freely to ensure that the valve accessories are evenly heated and cooled during the quenching process, preventing uneven quenching quality due to local excessively high or low temperatures.

[0032] In a further preferred embodiment of the utility model, the furnace box 1 and the furnace chamber 2 are both provided with air inlet holes and exhaust holes for air intake and exhaust, the air inlet holes are adapted to the air supply pipe 10, and the exhaust holes are adapted to the exhaust pipe 11.

[0033] In this embodiment, the adaptive design of the air inlet and the air supply pipe 10 allows cold air to flow evenly into the furnace 2 for subsequent ventilation and cooling; the adaptive design of the exhaust hole and the exhaust pipe 11 allows the hot air and steam in the furnace 2 to be discharged smoothly, maintaining the temperature and pressure in the furnace 2 stable, and improving the stability and quality of the quenching process.

[0034] In a further preferred embodiment of the utility model, the electric heating element 3 is a spiral formed by winding iron-chromium-aluminum alloy wire, and the furnace 2 is a rectangle made of high-aluminum, alumina polylight or silicon carbide refractory material.

[0035] In this embodiment, the spiral electric heating element 3 made of iron-chromium-aluminum alloy wire has excellent heating performance and stability, can heat quickly and evenly, and improves quenching efficiency; the furnace chamber 2 made of high-aluminum, alumina polylight or silicon carbide refractory materials can withstand high temperature environment, ensure the stability and durability of the furnace chamber 2 during the quenching process, and extend the service life of the equipment; the design of the rectangular furnace chamber 2 can provide a larger heating space, ensure that the valve accessories are evenly heated during the quenching process, and avoid uneven quality caused by local excessively high or low temperatures.

[0036] In summary, the quenching furnace for valve fittings processing provided by the present technical solution realizes automatic opening and closing of the furnace door by connecting the electric telescopic rod 7 with the sealed furnace door 6; in this way, the operator does not need to manually operate the furnace door, thereby avoiding the risk of scalding caused by contact with the high-temperature furnace door. In addition, the electric control also greatly improves work efficiency, reduces the cumbersome manual operation process, and solves the problem that the manual opening and closing of the furnace door of the existing quenching furnace is prone to cause injuries to the staff.

[0037] Compared with the relevant technology, the automatic opening and closing of the furnace door is realized by connecting the electric telescopic rod 7 with the sealed furnace door 6, which not only greatly improves the work efficiency, but also reduces the risk of workers being injured by contact with the high-temperature furnace door; the setting of the ventilation and cooling mechanism ensures that the temperature and pressure in the furnace 2 are within a safe range, avoiding safety accidents caused by high temperature or high pressure; the filtering mechanism effectively filters dust and impurities in the air, protects the fan 9 and extends its service life.

[0038] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0039] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A quenching furnace for valve parts processing, characterized in that: include: A furnace box, wherein a furnace chamber and an electric heating element for quenching and heating are arranged in the furnace box; a thermostat for adjusting the temperature of the electric heating element, wherein the thermostat is fixedly mounted on the top of the furnace box; a plurality of placement plates for placing valve accessories to be quenched, wherein the plurality of placement plates are arranged in the furnace chamber; a sealed furnace door for sealing the furnace chamber, wherein the sealed furnace door is arranged at the entrance of the furnace chamber, and the inner side of the sealed furnace door is fixedly connected to the plurality of placement plates; an electric telescopic rod for adjusting the opening and closing of the sealed furnace door, wherein the electric telescopic rod is fixedly mounted on both sides of the furnace box, and a connecting plate is fixedly mounted on the output rod of the electric telescopic rod, and one side of the connecting plate is fixedly connected to the sealed furnace door; a ventilation and cooling mechanism for supplying air to the furnace chamber, wherein the ventilation and cooling mechanism is arranged on the furnace box.

2. The quenching furnace for valve parts processing according to claim 1, characterized in that: The ventilation and cooling mechanism includes: a fan fixedly installed at the bottom of the furnace box; an air supply pipe fixedly installed on the air outlet end of the fan, the air outlet end of the air supply pipe is fixedly connected to the furnace box; an exhaust pipe fixedly installed on the top of the furnace box; and solenoid valves respectively arranged on the exhaust pipe and the air supply pipe.

3. The quenching furnace for valve parts processing according to claim 2, characterized in that: The fan is provided with a filtering mechanism for filtering dust and impurities, and the filtering mechanism comprises: a filter box fixedly connected to the air inlet end of the fan; a detachable filter plate arranged in the filter box; and an air inlet pipe fixedly connected to the air inlet end of the filter box.

4. The quenching furnace for valve parts processing according to claim 3, characterized in that: A sealed inspection door is provided on one side of the filter box. A hinge and a screw handle lock are provided on the inspection door. The hinge is fixedly connected to the filter box.

5. The quenching furnace for valve parts processing according to claim 1, characterized in that: A protective frame is fixedly installed on the top of the placement plate, and a plurality of air holes are symmetrically opened on the placement plate.

6. The quenching furnace for valve parts processing according to claim 2, characterized in that: The furnace box and the furnace are both provided with air inlet holes and exhaust holes for air intake and exhaust. The air inlet holes are matched with the air supply pipe, and the exhaust holes are matched with the exhaust pipe.

7. The quenching furnace for valve parts processing according to claim 1, characterized in that: The electric heating element is a spiral formed by winding iron-chromium-aluminum alloy wire, and the furnace is a rectangle made of silicon carbide refractory material.

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