CN218935435U

CN218935435U - Annealing furnace valve cover with explosion-proof function

Info

Publication number: CN218935435U
Application number: CN202223226057.2U
Authority: CN
Inventors: 张龙方; 张龙惠; 邬礼斌
Original assignee: Ningbo Bright Heat Treatment Electric Furnace Co ltd
Current assignee: Ningbo Bright Heat Treatment Electric Furnace Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-28
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to an annealing furnace valve cover with an explosion-proof function, which comprises a flange ring, a cover body arranged above the flange ring, a sealing ring arranged between the cover body and the flange ring, a cabin body fixed at the top of the cover body, a pressing ring arranged above the cabin body, and a plurality of screw rods vertically inserted between the cover body and the pressing ring and uniformly arranged at the periphery of the cabin body along the circumferential direction at equal angles respectively; according to the utility model, when the pressure in the annealing furnace is overlarge, the cover body can be automatically jacked up to release the pressure, and the cover body is automatically reset after the pressure is released, so that an operator does not need to pay attention to the pressure value at any time and is on duty beside the annealing furnace, thereby being greatly convenient to use, playing a role in saving time and effort and eliminating the potential safety hazard of the operator; in addition, can also carry out continuous circulation cooling in order to guarantee that it is in effectual operating condition all the time to the sealing washer, and then prolonged the life of sealing washer.

Description

Annealing furnace valve cover with explosion-proof function

Technical Field

The utility model relates to an annealing furnace valve cover with an explosion-proof function.

Background

An annealing furnace is a treatment device that anneals a metallic material to reduce or eliminate cold work hardening; as the working environment in the annealing furnace is high pressure and high temperature, the furnace body bursts because the furnace body cannot bear the excessive pressure once the pressure is excessive; the existing annealing furnace is provided with the pressure relief holes, and the valve covers are arranged at the pressure relief holes, but the valve covers can be opened and closed only by manual operation, namely when an operator finds that the internal pressure of the annealing furnace is overlarge, the operator can immediately and slowly open the valve covers to release the pressure, and after the pressure is relieved, the valve covers are manually closed, so that the operator must pay attention to the internal pressure value of the annealing furnace at all times and keep beside the annealing furnace, the operation is inconvenient, time and labor are wasted, and the operator can get close to the annealing furnace in a short distance to have potential safety hazards; in addition, the sealing ring at the valve cover is easy to lose efficacy due to long-term high-temperature and high-pressure environment, so that the service life is short, and the sealing ring needs to be further improved.

Disclosure of Invention

Aiming at the current state of the prior art, the technical problem to be solved by the utility model is to provide the annealing furnace valve cover with the explosion-proof function, which can automatically release pressure and automatically reset after the pressure release, so that the annealing furnace valve cover is greatly convenient to use, further plays roles in saving time and labor, eliminating potential safety hazards and prolonging the service life of a sealing ring.

The technical scheme adopted for solving the technical problems is as follows: the annealing furnace valve cover with the explosion-proof function is characterized by comprising a flange ring, a cover body arranged above the flange ring, a sealing ring arranged between the cover body and the flange ring, a cabin body fixed at the top of the cover body, a pressing ring arranged above the cabin body, and a plurality of screw rods vertically penetrating between the cover body and the pressing ring and uniformly and respectively arranged on the periphery of the cabin body along the circumferential direction at equal angles, wherein the lower end of each screw rod is inserted into the flange ring in a threaded manner, the upper end of each screw rod is sleeved with a nut in a threaded manner, and each nut is tightly pressed at the top of the pressing ring; each screw is also sleeved with a spring, and each spring is arranged between the pressing ring and the cover body and is always in a compressed state; the inner side of the pressing ring is also provided with two liquid inlet and outlet pipes, and one end of each liquid inlet and outlet pipe is inserted and fixed at the top of the cabin body and communicated with the inside of the cabin body.

Preferably, a plurality of partition plates which are sequentially arranged are further fixed between the top inner wall of the cabin body and the top outer wall of the cover body 1, a notch which is staggered with each other is formed between any two adjacent partition plates and the inner wall of the cabin body, and each notch forms a snake-shaped channel in the cabin body.

Preferably, the two liquid inlet and outlet pipes are respectively arranged on the outer sides of the two partition plates at the extreme edges.

Preferably, the top of the flange ring is provided with annular grooves which are concentrically distributed, the lower part of the sealing ring is embedded in the annular grooves, and the bottom of the cover body is tightly pressed on the upper part of the sealing ring.

Preferably, the flange ring, the cover body, the cabin body and the outside of the pressing ring are also sleeved with a cylinder.

Compared with the prior art, the utility model has the advantages that: according to the utility model, when the pressure in the annealing furnace is overlarge, the cover body can be automatically jacked up to release the pressure, and the cover body is automatically reset after the pressure is released, so that an operator does not need to pay attention to the pressure value at any time and is on duty beside the annealing furnace, thereby being greatly convenient to use, playing a role in saving time and effort and eliminating the potential safety hazard of the operator; in addition, can also carry out continuous circulation cooling in order to guarantee that it is in effectual operating condition all the time to the sealing washer, and then prolonged the life of sealing washer.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

fig. 2 is a view showing a bottom view of the interior of the cabin according to the present utility model.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.

As shown in fig. 1-2, an annealing furnace valve cover with an explosion-proof function comprises a flange ring 10, a cover body 1 arranged above the flange ring 10, a sealing ring 9 arranged between the cover body 1 and the flange ring 10, a cabin 6 fixed at the top of the cover body 1, a pressing ring 2 arranged above the cabin 6, and a plurality of screw rods 3 vertically penetrating between the cover body 1 and the pressing ring 2 and uniformly and respectively arranged at the periphery of the cabin 6 along the circumferential direction at equal angles, wherein the lower end of each screw rod 3 is inserted into the flange ring 10 in a threaded manner, the upper end of each screw rod 3 is sleeved with a nut 4 in a threaded manner, and each nut 4 is tightly pressed at the top of the pressing ring 2; each screw rod 3 is also sleeved with a spring 5, and each spring 5 is arranged between the pressing ring 2 and the cover body 1 and is always in a compressed state; the inner side of the pressing ring 2 is also provided with two liquid inlet and outlet pipes 7, and one end of each liquid inlet and outlet pipe 7 is inserted and fixed at the top of the cabin body 6 and communicated with the inside of the cabin body 6.

A plurality of partition plates 8 which are sequentially arranged are also fixed between the top inner wall of the cabin 6 and the top outer wall of the cover body 1, a notch 61 which is staggered with each other is formed between any two adjacent partition plates 8 and the inner wall of the cabin 6, and each notch 61 forms a snake-shaped channel 62 in the cabin 6.

The two liquid inlet and outlet pipes 7 are respectively arranged on the outer sides of the two partition plates 8 at the extreme edges.

The top of the flange ring 10 is provided with annular grooves 101 which are concentrically distributed, the lower part of the sealing ring 9 is embedded in the annular grooves 101, and the bottom of the cover body 1 is tightly pressed on the upper part of the sealing ring 9.

The flange ring 10, the cover body 1, the cabin 6 and the outside of the pressing ring 2 are also sleeved with a cylinder 11.

Working principle: the bottom of the flange ring 10 and the opening of the lower end of the cylinder 11 are fixed on the outer wall of the annealing furnace 12 and are positioned outside the pressure relief hole 121; when the annealing furnace 12 works, a high-pressure and high-temperature environment is formed in the annealing furnace, so that the cover body 1 is subjected to outward pressure, the temperature of the cover body 1 is increased sharply, the temperature of the sealing ring 9 between the cover body 1 and the flange ring 10 is also increased greatly, and the sealing ring 9 fails once exceeding the limit temperature; at this time, the cooling liquid is introduced into the cabin 6 through one of the liquid inlet and outlet pipes 7, flows to the lower part of the other liquid inlet and outlet pipe 7 along the serpentine channel 62 and flows outwards through the liquid inlet and outlet pipe 7, so that the circulating flow is realized, the cooling liquid takes away the heat on the cover body 1 in the flowing process, and the sealing ring 9 is prevented from losing efficacy due to over-high temperature rise, so that the tightness of the pressure relief hole 121 is effectively ensured.

If the pressure in the annealing furnace 12 is abnormal, the cover body 1 is jacked up under the action of the pressure so as to generate a gap between the cover body 1 and the sealing ring 9, and the excessive pressure is released outwards through the gap; in the process of jacking up the cover body 1, the distance between the cover body 1 and the pressing ring 2 is reduced, and each spring 5 is further compressed; when the pressure in the annealing furnace 12 is reduced, the cover body 1 moves downwards to reset under the action of the rebound force of each spring 5 and compresses the sealing ring 9 again, so that the sealing state is restored, and the explosion of the annealing furnace 12 caused by the overlarge pressure is effectively prevented.

The distance between the pressing ring 2 and the cover 1 can be adjusted by adjusting the height of each nut 4, so that the initial resilience force of each spring 5 is adjusted, and the critical pressure value when the cover 1 is jacked up is adjusted.

According to the utility model, when the pressure in the annealing furnace is overlarge, the cover body 1 can be automatically jacked up to release the pressure, and the cover body 1 is automatically reset after the pressure is released, so that an operator does not need to pay attention to the pressure value at any time and is on duty beside the annealing furnace, thereby greatly facilitating the use, saving time and effort and eliminating the potential safety hazard of the operator; in addition, can also carry out continuous circulation cooling to sealing washer 9 in order to guarantee that it is in effectual operating condition all the time, and then prolonged sealing washer 9's life.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; while the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications may be made to the techniques described in the foregoing embodiments, or that certain features may be substituted for those illustrated therein; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The annealing furnace valve cover with the explosion-proof function is characterized by comprising a flange ring, a cover body arranged above the flange ring, a sealing ring arranged between the cover body and the flange ring, a cabin body fixed at the top of the cover body, a pressing ring arranged above the cabin body, and a plurality of screw rods vertically penetrating between the cover body and the pressing ring and uniformly and respectively arranged on the periphery of the cabin body along the circumferential direction at equal angles, wherein the lower end of each screw rod is inserted into the flange ring in a threaded manner, the upper end of each screw rod is sleeved with a nut in a threaded manner, and each nut is tightly pressed at the top of the pressing ring; each screw is also sleeved with a spring, and each spring is arranged between the pressing ring and the cover body and is always in a compressed state; the inner side of the pressing ring is also provided with two liquid inlet and outlet pipes, and one end of each liquid inlet and outlet pipe is inserted and fixed at the top of the cabin body and communicated with the inside of the cabin body.

2. The annealing furnace valve cover with the explosion-proof function according to claim 1, wherein a plurality of sequentially arranged partition plates are further fixed between the top inner wall of the cabin body and the top outer wall of the cover body, a notch which is staggered with each other is formed between any two adjacent partition plates and the inner wall of the cabin body, and each notch forms a serpentine channel in the cabin body.

3. The annealing furnace valve cover with the explosion-proof function according to claim 2, wherein the two liquid inlet and outlet pipes are respectively arranged on the outer sides of the two partition plates at the extreme edges.

4. The annealing furnace valve cover with the explosion-proof function according to claim 1, wherein the top of the flange ring is provided with annular grooves which are concentrically distributed, the lower part of the sealing ring is embedded in the annular grooves, and the bottom of the cover body is tightly pressed on the upper part of the sealing ring.

5. The annealing furnace valve cover with the explosion-proof function according to claim 1, wherein a cylinder is sleeved outside the flange ring, the cover body, the cabin body and the pressing ring.