CN219082349U - Detachable cold box safety valve - Google Patents

Abstract

The utility model provides a detachable cold box relief valve, it includes the cold box body, is provided with the relief valve in one of them one side of cold box body, the relief valve is installed in the one end of barrel, and the other end passes through the flange to be fixed on the cold box body, and this relief valve comprises apron and support, and the one end of support is fixed on the barrel, and the other end passes through the one end of fixed bolt and channel-section steel to be connected, and the channel-section steel other end passes through the fixed bolt and is fixed with the apron, can turn over through the fixed bolt and turn over the apron and carry out cold box superpressure and release, the flange is fixed with the cold box body through many fixed bolt assemblies to place the rubber pad between flange and the cold box body. The utility model not only can ensure the normal opening and closing of the safety valve of the cold box, but also is convenient for disassembly, assembly and maintenance. In some special transportation size requirements, the detachable components are transported to the site for installation, and the transportation size is reduced significantly.

Description

Detachable cold box safety valve

Technical Field

The utility model belongs to the technical field of air separation equipment, and relates to a detachable cold box safety valve.

Background

The cold box safety valve is an indispensable panel component of air separation cold box equipment and mainly plays a role in cold box overpressure protection. With the development of the fine design of the space division, higher requirements are put on some special use occasions.

In specific use occasions, the transportation size requirement is strict, and the whole skid-mounted cold box does not allow accessories which protrude out of the cold box panel beyond the specific size to appear. At this time, the large-sized component cold box safety valve conventionally welded directly to the air separation panel becomes a bottleneck of the entire transport size. The detachable cold box safety valve is used, and the detachable design of the detachable cold box safety valve is convenient and concise to install, so that a very suitable solution can be provided. The utility model provides a detachable cold box relief valve can also satisfy part and need temporary dismouting or examine maintenance demand, conveniently changes under the circumstances that need not welding and cutting.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a solution for reducing the transportation size of a skid-mounted cold box. The detachable structure does not need to be welded, cut and other destructive work greatly, and is also a more convenient and safer maintenance and inspection mode.

The utility model aims at the technical problems and is mainly solved by the following technical scheme: the utility model provides a detachable cold box relief valve, it includes the cold box body, is provided with the relief valve in one of them one side of cold box body, the relief valve is installed in the one end of barrel, and the other end passes through the flange to be fixed on the cold box body, and this relief valve comprises apron and support, and the one end of support is fixed on the barrel, and the other end passes through the one end of fixed bolt and channel-section steel to be connected, and the channel-section steel other end passes through the fixed bolt and is fixed with the apron, can turn over through the fixed bolt and turn over the apron and carry out cold box superpressure and release, the flange is fixed with the cold box body through many fixed bolt assemblies to place the rubber pad between flange and the cold box body.

As preferable: the cylinder comprises annular plate and the stack shell at top, still overlaps outside the stack shell and is equipped with the right angle return bend, is applicable to the pressure release hole of seting up any position on the cold box body, can be with whole relief valve opening up all the time, the annular plate top is covered with the apron, is provided with the round rubber pad between apron and annular plate, and this rubber pad is placed in the annular groove of seting up at annular plate top to the high protrusion of its rubber pad is higher than annular plate and apron surface contact seal.

As preferable: the channel-section steel is the channel-section steel that two kinds of width are different, and wherein the channel-section steel welded fastening of short distance is on the apron, and the one end of long distance channel-section steel is connected with the channel-section steel of short distance through first fixed bolt, and the other end rotates with the support through the fixed bolt of second to be connected, two bolt holes have all been seted up to the top and the below of the fixed bolt of second, and wherein the position of top bolt hole is higher than the height when long distance channel-section steel is parallel, makes to insert to the bolt after keeping fixing on the barrel with long distance channel-section steel in the transportation, and the position of the bolt hole of below is close to the fixed bolt department of second, makes to play limiting effect when the relief valve is bounced up in the use to because of the angle is less than 90 degrees, can fall down by oneself because of gravity reason after then bounced up.

As preferable: and a plurality of reinforcing ribs which are vertically distributed are further arranged on two sides of the support.

As preferable: the rubber pad is made of asbestos-free fiber rubber or neoprene rubber.

The beneficial effects of the utility model are as follows: the skid-mounted air separator is beneficial to supplement, reduces the transportation size of the skid-mounted cold box, and avoids the problem of greatly improving the transportation cost due to the problem of local size. The detachable cold box safety valve on-site inspection and maintenance scheme is provided, welding and cutting operations are avoided, and the cold box safety valve is simpler and more efficient to replace.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of another embodiment of the present utility model.

Detailed Description

The technical features and functional objects achieved by the present utility model are readily apparent from the following detailed description taken in conjunction with the accompanying drawings. As shown in fig. 1, a detachable cold box safety valve comprises a cold box body 1, wherein one side of the cold box body 1 is provided with a safety valve 2, the safety valve 2 is installed at one end of a cylinder body 3, the other end of the safety valve is fixed on the cold box body 1 through a flange 4, the safety valve 2 consists of a cover plate 5 and a bracket 6, one end of the bracket 6 is fixed on the cylinder body 3, the other end of the bracket is connected with one end of a channel steel 8 through a fixing bolt 7, the other end of the channel steel 8 is fixed with the cover plate 5 through the fixing bolt 7, the cover plate 5 can be folded and unfolded for cold box overpressure relief through the fixing bolt 7, the flange 4 is fixed with the cold box body 1 through a plurality of fixing bolt assemblies 9, and a rubber pad 10 is placed between the flange 4 and the cold box body 1.

As shown in fig. 2, the cylinder 3 is composed of a ring plate 11 and a cylinder body 12 at the top, a right-angle elbow 13 is sleeved outside the cylinder body 12, the cylinder is suitable for being opened in a pressure relief hole at any position on the cold box body 1, the whole safety valve 2 can be always opened upwards, a cover plate 5 is covered above the ring plate 11, a circle of rubber pad 10 is arranged between the cover plate 5 and the ring plate 11, the rubber pad 10 is placed in a ring groove 12 opened at the top of the ring plate 11, and the height of the rubber pad 10 is higher than that of the ring plate 11 and is in contact sealing with the surface of the cover plate 5.

The channel-section steel 8 is the channel-section steel of two kinds of width differences, and wherein the welding of short distance channel-section steel 13 is fixed on the apron, and the one end of long distance channel-section steel 14 is connected with short distance channel-section steel 13 through first fixed bolt 15, and the other end is connected with support 6 rotation through second fixed bolt 16, two bolt holes 17 have all been seted up to the top and the below of second fixed bolt 16, and the height when the position of upper bolt hole is higher than long distance channel-section steel 14 parallel, makes and inserts to the bolt after keeping fixing long distance channel-section steel on barrel 3 in the transportation, and the position of the bolt hole of below is close to second fixed bolt 16 (movable bolt) department, makes to play the limiting effect when jumping up because of relief valve 2 in the use to because of the angle is less than 90 degrees, can fall down by oneself because of gravity reason after the spring up.

A plurality of reinforcing ribs 18 are arranged on two sides of the support in a vertical mode. The rubber pad 10 is made of asbestos-free fiber rubber or chloroprene rubber, and the support can greatly improve the overall strength through the arranged reinforcing ribs, so that the overall service life is prolonged.

In order to ensure the normal opening and closing of the cold box safety valve, the part of the rotating structure formed by the components can be rotated by taking the fixed bolt as an axis. The two rubber pads are used for preventing the cold box from running cold when the air separator is in normal operation. The flange, the fixed bolt component and the rubber pad form a detachable part of the detachable cold box safety valve. The detachable part and the main body part of the cold box safety valve are connected through a cylinder or a right-angle elbow pipe to form the utility model. If the cold box safety valve needs to be dismantled, the whole cold box safety valve can be separated from the cold box from the flange by unscrewing the nut of the fixing bolt assembly, the cold box safety valve is fastened by the fastening piece by the same installation method, the operation is simple and convenient, and the cutting and welding are not needed. The movable bolt is in a transportation state when being inserted into a hole above the rotating shaft hole of the fixed bolt of the bracket, so that the cover plate is prevented from being turned upwards during transportation. The movable bolt is in a normal running state when being inserted into a hole below the rotating shaft hole of the fixed bolt of the bracket, and the cover plate is turned upwards under overpressure, so that the channel steel can automatically return to the original position after touching the movable bolt.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a detachable cold box relief valve, it includes the cold box body, is provided with the relief valve in one of them side of cold box body, its characterized in that: the safety valve is installed in one end of the barrel, the other end is fixed on the cold box body through the flange, the safety valve comprises a cover plate and a support, one end of the support is fixed on the barrel, the other end is connected with one end of the channel steel through a fixing bolt, the other end of the channel steel is fixed with the cover plate through the fixing bolt, the cover plate can be folded and unfolded through the fixing bolt to carry out cold box overpressure relief, the flange is fixed with the cold box body through a plurality of fixing bolt assemblies, and a rubber pad is placed between the flange and the cold box body.

2. The removable cold box safety valve of claim 1, wherein: the cylinder comprises annular plate and the stack shell at top, still overlaps outside the stack shell and is equipped with the right angle return bend, is applicable to the pressure release hole of seting up any position on the cold box body, can be with whole relief valve opening up all the time, the annular plate top is covered with the apron, is provided with the round rubber pad between apron and annular plate, and this rubber pad is placed in the annular groove of seting up at annular plate top to the high protrusion of its rubber pad is higher than annular plate and apron surface contact seal.

3. The removable cold box safety valve of claim 1, wherein: the channel-section steel is the channel-section steel that two kinds of width are different, and wherein the channel-section steel welded fastening of short distance is on the apron, and the one end of long distance channel-section steel is connected with the channel-section steel of short distance through first fixed bolt, and the other end rotates with the support through the fixed bolt of second to be connected, two bolt holes have all been seted up to the top and the below of the fixed bolt of second, and wherein the position of top bolt hole is higher than the height when long distance channel-section steel is parallel, makes to insert to the bolt after keeping fixing on the barrel with long distance channel-section steel in the transportation, and the position of the bolt hole of below is close to the fixed bolt department of second, makes to play limiting effect when the relief valve is bounced up in the use to because of the angle is less than 90 degrees, can fall down by oneself because of gravity reason after then bounced up.

4. A removable cold box safety valve according to claim 1 or 3, wherein: and a plurality of reinforcing ribs which are vertically distributed are further arranged on two sides of the support.

5. The removable cold box safety valve of claim 2, wherein: the rubber pad is made of asbestos-free fiber rubber or neoprene rubber.

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