Boiler steam pressure relief device

Abstract

The utility model relates to a boiler steam pressure relief device. Comprising a pressure relief assembly which is detachably connected to a valve seat, a fastening seat of the pressure relief assembly is provided with a stud cylinder communicated with the valve seat, a pressurizing component comprises an adjusting seat, a spring and an abutting seat, the adjusting seat is meshed with the outer side wall of the stud cylinder, and the upper end face of an attaching plate on the outer side wall of a pressure relief column of the pressure relief component abuts against the fastening seat. The lower end face of the attaching plate abuts against the upper end face of the abutting base, the lower end face of the abutting base abuts against the upper end face of the adjusting base through the spring, the lower end of the pressure relief column is arranged in the stud cylinder in a matched mode, and the cover head is detachably connected to the fastening base and wraps the pressure relief column. Gas pressure in the valve seat enters the pressure relief column through the stud cylinder communicated with the valve seat, the upper end of the pressure relief column enters the cavity of the cover head and acts on the attaching plate of the pressure relief column through the through hole, the pressure of the spring on the attaching plate is adjusted by the adjusting seat, the attaching plate can be ejected open when the gas pressure exceeds the elastic force of the spring, and the pressure relief column can be used for relieving pressure. And the gas is subjected to pressure relief.

Description

Technical Field

[0001] The utility model belongs to the field of boiler production equipment, and in particular relates to a boiler steam pressure relief device. Background Art

[0002] In the process of food production, boilers are often required for high-pressure production so that the food inside can be cooked during the high-pressure process. However, there is also a problem with high-pressure production, which is to ensure that the pressure inside the boiler is continuous and constant. However, it is difficult to control the pressure during the heating process. Insufficient pressure will cause the food to be undercooked within a specific time, while overpressure will cause certain dangers due to excessive pressure. Therefore, how to control the pressure inside the boiler during the boiler production process needs to be focused on, but currently there are not enough suitable instruments to achieve pressure relief in the boiler. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a boiler steam pressure relief device, which arranges the pressure relief component on the valve seat, and the gas pressure in the valve seat enters the pressure relief column through the stud cylinder connected to the valve seat, and the upper end of the pressure relief column enters the cavity of the cover head and acts on the fitting plate of the pressure relief column through the through hole, and the pressure of the spring on the fitting plate is adjusted by the adjustment seat. When the gas pressure exceeds the elastic force of the spring, the fitting plate will be pushed open to relieve the gas pressure, thereby achieving steam pressure relief and adjusting the pressure in the boiler.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A boiler steam pressure relief device comprises a valve seat and a pressure relief component, wherein the pressure relief component is detachably connected to the valve seat, and the pressure relief component comprises a fastening seat, a pressurizing component and a pressure relief component;

[0006] The fastening seat is provided with a stud cylinder connected to the valve seat, the fastening seat is surrounded by an upper fixing plate, a lower fixing plate and two groups of connecting columns, the stud cylinder is arranged on the lower fixing plate and sequentially connects the lower fixing plate and the valve seat, and the inner cavity of the stud cylinder is provided with an internal thread;

[0007] The pressurizing member comprises an adjusting seat, a spring and an abutting seat, wherein the adjusting seat is engaged with the outer side wall of the stud cylinder, and the spring comprises an inner spring and an outer spring, wherein the inner spring and the outer spring are sequentially sleeved on the outer side wall of the stud cylinder from the inside to the outside, and the upper and lower ends of the inner spring and the outer spring are respectively abutted with the abutting seat and the adjusting seat;

[0008] The pressure relief component includes a pressure relief column, a cover head and an adjusting cylinder, the upper end surface of the fitting plate on the outer side wall of the pressure relief column abuts on the fastening seat, the cover head is detachably connected to the fastening seat and covers the pressure relief column, the upper end of the pressure relief column passes through the through hole on the upper fixing plate and extends into the cover head, the lower end surface of the fitting plate abuts on the upper end surface of the abutting seat, the lower end surface of the abutting seat abuts against the upper end surface of the adjusting seat through a spring, the lower end of the pressure relief column fits in the stud cylinder, the outer side wall of the adjusting cylinder is provided with an external thread, the internal thread is meshed with the external thread, the inner cavity of the adjusting cylinder cooperates with the lower end of the pressure relief column, the inner cavity of the adjusting cylinder is provided with a sealing ring, and the inner cavity of the adjusting cylinder abuts against the lower end of the pressure relief column through the sealing ring.

[0009] The boiler steam pressure relief device adopts this structure. In order to achieve a stable effect, the fastening seat surrounded by the upper fixing plate, the lower fixing plate and the two groups of connecting columns is connected to the valve seat. The lower fixing plate is provided with a stud cylinder, and the stud cylinder connects the lower fixing plate and the valve seat. Therefore, the air pressure in the valve seat will directly enter the stud cylinder. In order to guide the air pressure in the stud cylinder, firstly, an adjusting cylinder is screwed into the stud cylinder, and the engagement of the internal thread and the external thread keeps it stable. The inner cavity of the adjusting cylinder is provided with a sealing ring, and the sealing ring abuts against the lower end of the pressure relief column. Therefore, the inner cavity of the pressure relief column will be connected with the inner cavity of the stud cylinder. The purpose of this device is to abut the lower end of the upper fixing plate through the fitting plate on the outer side wall of the pressure relief column. The air pressure should act on the fitting plate from the through hole. Therefore, a cover head is detachably connected to the upper end of the upper fixing plate. The cover head covers the upper end of the pressure relief column. Therefore, the air pressure in the valve seat will pass through the stud cylinder, the adjusting cylinder and the adjusting cylinder in turn. The cam is pressed against the top of the stud cylinder to release the spring which in turn causes the upper end of the stud cylinder to move upward and the lower end of the stud cylinder to move upward and to move the spring back into position.

[0010] Therefore, when the air pressure in the boiler is too high, the air pressure will pass through the stud cylinder, the adjusting cylinder, the pressure relief column, the cover head in sequence, and then act on the upper end surface of the fitting plate through the through hole, providing continuous downward pressure for the fitting plate until the air pressure exceeds the supporting force that the spring can provide. Therefore, the air pressure will push the fitting plate downward and release the air pressure from the fitting plate, reducing the air pressure in the valve seat until the air pressure is balanced with the supporting force of the spring again. Therefore, it can be ensured that the air pressure in the valve seat is maintained at no more than the supporting force of the spring, which can ensure the pressure balance in the boiler. When the pressure in the boiler needs to be increased, it is only necessary to turn the adjusting seat to compress the spring to increase the supporting force of the spring, and vice versa.

[0011] Furthermore, the adjustment seat is provided with an adjustment hole which penetrates transversely.

[0012] Compared with the prior art, the utility model has the following advantages: the adjusting seat is engaged with the stud cylinder, and the spring on the adjusting seat abuts against the abutting seat upward, and the abutting seat abuts against the fitting plate on the pressure relief column to provide an upward supporting force, and the air pressure in the valve seat will pass through the stud cylinder, the adjusting cylinder, the pressure relief column, and the cover head in sequence, and then act on the upper end surface of the fitting plate through the through hole. Therefore, the upward supporting force provided by the spring and the pressure of the air pressure will form a balance. When the air pressure is too large to break this balance, the fitting plate will be pushed downward to relieve the pressure. The supporting force provided by the spring can be changed by twisting the adjusting seat to adjust the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 For the utility model Figure 2 AA cross-sectional view and gas pressure flow schematic diagram;

[0017] Figure 4 It is an explosion diagram of the utility model.

[0018] Among them: 1. valve seat; 2. pressure relief assembly; 21. fastening seat; 211. stud cylinder; 212. upper fixing plate; 213. lower fixing plate; 214. connecting column; 215. through hole; 216. internal thread; 22. pressurizing member; 221. adjusting seat; 2211. adjusting hole; 222. spring; 2221. inner spring; 2222. outer spring; 223. abutting seat; 23. pressure relief member; 231. pressure relief column; 232. cover; 233. fitting plate; 234. adjusting cylinder; 235. external thread; 236. sealing ring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0020] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0021] like Figure 1-4 As shown, a boiler steam pressure relief device comprises a valve seat 1 and a pressure relief assembly 2, wherein the pressure relief assembly 2 is detachably connected to the valve seat 1, and the pressure relief assembly 2 comprises a fastening seat 21, a pressurizing member 22 and a pressure relief member 23;

[0022] The fastening seat 21 is provided with a stud cylinder 211 connected to the valve seat 1. The fastening seat 21 is surrounded by an upper fixing plate 212, a lower fixing plate 213 and two groups of connecting columns 214. The stud cylinder 211 is arranged on the lower fixing plate 213 and sequentially connects the lower fixing plate 213 and the valve seat 1. The inner cavity of the stud cylinder 211 is provided with an internal thread 216.

[0023] The pressurizing member 22 includes an adjusting seat 221, a spring 222 and an abutting seat 223. The adjusting seat 221 is engaged with the outer wall of the stud cylinder 211. The spring 222 includes an inner spring 2221 and an outer spring 2222. The inner spring 2221 and the outer spring 2222 are sequentially sleeved on the outer wall of the stud cylinder 211 from the inside to the outside. The upper and lower ends of the inner spring 2221 and the outer spring 2222 are respectively abutted against the abutting seat 223 and the adjusting seat 221.

[0024] The pressure relief member 23 includes a pressure relief column 231, a cover head 232 and an adjusting cylinder 234. The upper end surface of the fitting plate 233 on the outer wall of the pressure relief column 231 abuts against the fastening seat 21. The cover head 232 is detachably connected to the fastening seat 21 and covers the pressure relief column 231. The upper end of the pressure relief column 231 passes through the through hole 215 on the upper fixing plate 212 and extends into the cover head 232. The lower end surface of the fitting plate 233 abuts against the upper end surface of the abutting seat 223. The lower end surface of 23 is in contact with the upper end surface of the adjusting seat 221 through the spring 222, the lower end of the pressure relief column 231 is matched in the stud cylinder 211, the outer wall of the adjusting cylinder 234 is provided with an external thread 235, the internal thread 216 is meshed with the external thread 235, the inner cavity of the adjusting cylinder 234 is matched with the lower end of the pressure relief column 231, the inner cavity of the adjusting cylinder 234 is provided with a sealing ring 236, and the inner cavity of the adjusting cylinder 234 is in contact with the lower end of the pressure relief column 231 through the sealing ring 236.

[0025] Furthermore, the adjustment seat 221 is provided with an adjustment hole 2211 which penetrates transversely.

[0026] Description of the working method of this utility model:

[0027] In order to achieve a stable effect, the steam pressure relief device of the boiler adopts this structure. The fastening seat 21 surrounded by the upper fixing plate 212, the lower fixing plate 213 and the two groups of connecting columns 214 is connected to the valve seat 1. The stud cylinder 211 is provided on the lower fixing plate 213. The stud cylinder 211 connects the lower fixing plate 213 and the valve seat 1. Therefore, the air pressure in the valve seat 1 will directly enter the stud cylinder 211. In order to guide the air pressure in the stud cylinder 211, the regulating cylinder 234 is first screwed into the stud cylinder 211, and the internal thread 216 and the external thread 235 are engaged to maintain stability. The regulating cylinder 234 is screwed into the stud cylinder 211. 4 is provided with a sealing ring 236, and the sealing ring 236 abuts against the lower end of the pressure relief column 231, so the inner cavity of the pressure relief column 231 will be connected with the inner cavity of the stud cylinder 211, and the purpose of the device is to abut the lower end of the upper fixing plate 212 through the fitting plate 233 on the outer wall of the pressure relief column 231, and the air pressure will act on the fitting plate 233 from the through hole 215, so the upper end of the upper fixing plate 212 is detachably connected with a cover head 232, and the cover head 232 covers the upper end of the pressure relief column 231, so the air pressure in the valve seat 1 will pass through the stud cylinder 211, the regulating cylinder 231 in turn. 4. The pressure relief column 231 and the cover head 232 then act on the upper end surface of the bonding plate 233 through the through hole 215. In order to keep the pressure of the bonding plate 233 pushing upward balanced with the air pressure, an adjustment seat 221 is engaged with the outer wall of the stud cylinder 211. The upper end of the adjustment seat 221 abuts against the lower end surface of the abutment seat 223 through a spring 222, and the upper end surface of the abutment seat 223 abuts against the lower end surface of the bonding plate 233. Therefore, the upward supporting force of the bonding plate 233 is provided by the deformation of the spring 222, and can be adjusted on the stud cylinder 211 by screwing the adjustment seat 221. The upper and lower heights on the adjusting seat 221 are changed, thereby changing the upward supporting force of the spring 222. In order to prevent the spring 222 from tilting during the turning of the adjusting seat 221 and thus failing to provide a good upward supporting force, the spring 222 is divided into an inner spring 2221 and an outer spring 2222. The rotation directions of the inner spring 2221 and the outer spring 2222 are opposite, so that the inner spring 2221 and the outer spring 2222 are staggered. Therefore, no matter how the adjusting seat 221 is turned, the inner spring 2221 and the outer spring 2222 can provide sufficient supporting force to prevent tilting.

[0028] Therefore, when the air pressure in the boiler is too high, the air pressure will pass through the stud cylinder 211, the regulating cylinder 234, the pressure relief column 231, the cover head 232 in sequence, and then act on the upper end surface of the fitting plate 233 through the through hole 215, providing continuous downward pressure for the fitting plate 233 until the air pressure exceeds the supporting force that the spring 222 can provide. Therefore, the air pressure will push the fitting plate 233 downward, and the air pressure will be released from the fitting plate 233, reducing the air pressure in the valve seat 1 until the air pressure is balanced with the supporting force of the spring 222 again. Therefore, it can be ensured that the air pressure in the valve seat 1 is maintained at a level not exceeding the supporting force of the spring 222. In this case, the pressure balance in the boiler can be ensured. When the pressure in the boiler needs to be increased, the supporting force of the spring 222 can be increased by twisting the adjusting seat 221 to compress the spring 222, and vice versa. Since the elastic compression force of the spring 222 is very large, simply twisting the adjusting seat 221 needs to overcome a large force. Therefore, a transversely penetrating adjusting hole 2211 is provided on the adjusting seat 221, and a straight rod is inserted into the adjusting hole 2211. The force on the rotating adjusting seat 221 is increased by increasing the torque, making it more convenient to twist the adjusting seat 221.

[0029] The beneficial effect of the utility model is that the adjusting seat 221 is engaged with the stud cylinder 211, and the spring 222 on the adjusting seat 221 abuts against the abutting seat 223 upward, and the abutting seat 223 abuts against the fitting plate 233 on the pressure relief column 231 to provide an upward supporting force, and the air pressure in the valve seat 1 will pass through the stud cylinder 211, the adjusting cylinder 234, the pressure relief column 231, and the cover head 232 in sequence, and then act on the upper end surface of the fitting plate 233 through the through hole 215. Therefore, the upward supporting force provided by the spring 222 and the pressure of the air pressure will form a balance. When the air pressure is too large to break this balance, the fitting plate 233 will be pushed downward to release the pressure. The supporting force provided by the spring 222 can be changed by twisting the adjusting seat 221 to adjust the pressure.

[0030] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A boiler steam pressure relief device, characterized in that: It includes a valve seat and a pressure relief assembly, which is detachably connected to the valve seat, the pressure relief assembly includes a fastening seat, a pressurizing component and a pressure relief component, the fastening seat is provided with a stud cylinder connected to the valve seat, the pressurizing component includes an adjusting seat, a spring and an abutting seat, the adjusting seat is engaged with the outer side wall of the stud cylinder, the pressure relief component includes a pressure relief column and a cover head, the upper end face of the fitting plate on the outer side wall of the pressure relief column abuts on the fastening seat, the lower end face of the fitting plate abuts on the upper end face of the abutting seat, the lower end face of the abutting seat abuts against the upper end face of the adjusting seat through a spring, the lower end of the pressure relief column is fitted in the stud cylinder, and the cover head is detachably connected to the fastening seat and covers the pressure relief column.

2. The boiler steam pressure relief device according to claim 1, characterized in that: The fastening seat is surrounded by an upper fixing plate, a lower fixing plate and two groups of connecting columns. The stud cylinder is arranged on the lower fixing plate and sequentially connects the lower fixing plate and the valve seat. The upper end of the pressure relief column passes through the through hole on the upper fixing plate and extends into the cover head.

3. The boiler steam pressure relief device according to claim 2, characterized in that: The pressure relief assembly also includes an adjusting cylinder, the inner cavity of the stud cylinder is provided with an internal thread, the outer side wall of the adjusting cylinder is provided with an external thread, the internal thread is meshed with the external thread, and the inner cavity of the adjusting cylinder cooperates with the lower end of the pressure relief column.

4. The boiler steam pressure relief device according to claim 3, characterized in that: The inner cavity of the regulating cylinder is provided with a sealing ring, and the inner cavity of the regulating cylinder abuts against the lower end of the pressure relief column through the sealing ring.

5. The boiler steam pressure relief device according to claim 1, characterized in that: The spring comprises an inner spring and an outer spring, which are sequentially sleeved on the outer side wall of the stud cylinder from the inside to the outside, and the upper and lower ends of the inner spring and the outer spring are respectively in contact with the abutment seat and the adjustment seat.

6. The boiler steam pressure relief device according to claim 1, characterized in that: The adjusting seat is provided with an adjusting hole which penetrates transversely.

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