A kind of conversion furnace spraying device

Abstract

The utility model relates to the technical field of converter spraying, and in particular to a converter spraying device, including a water supply pipe rack, on which a load-bearing bracket and a water supply pipe are fixedly connected, and eight high-pressure nozzles are fixedly arranged on the water supply pipe rack through a connecting mechanism, and the water supply pipe rack is integrally composed of an inner disc, an outer tube and two connecting pipes, wherein the inner disc and the outer tube are concentrically arranged, and the midlines of the two connecting pipes are symmetrically connected between the inner disc and the outer tube. The utility model utilizes an inner disc, an outer tube and a connecting pipe to form a hollow structure of the water supply pipe rack; a concentrically arranged set countersunk hole and a sealing ring groove are provided in the water supply pipe rack, a limiting protrusion corresponding to the limiting groove rack is provided on the high-pressure nozzle, a sealing gasket that resists the set countersunk hole is provided by the limiting protrusion and a strong spring, and then a threaded connection between the sealing cover and the sealing ring groove is utilized to realize a stable and convenient disassembly and assembly connection between the high-pressure nozzle and the water supply pipe rack.

Description

Technical Field

[0001] The utility model relates to the technical field of converter spraying, in particular to a converter spraying device. Background Art

[0002] The function of the conversion section is to convert the CO in the semi-water gas into CO 2 and H 2 Its main equipment includes the shift furnace, saturated hot water tower and heat exchange equipment. In the medium-low-low process, if coal gas is used for cooling between the medium-shift stages, a part of fresh high-concentration CO gas is added between the stages. Although the reaction gas temperature is reduced, the proportional relationship of the steam-gas ratio in the process of the reaction gas passing through the medium-shift catalyst and then through the low-shift catalyst is destroyed, resulting in a low steam-gas ratio entering the low-shift furnace.

[0003] Under the current conditions, this heat reduction method is no longer used, but instead the inter-stage water spray cooling method is used. The semi-water gas enters the first stage catalyst layer of the converter for conversion reaction. The large amount of reaction heat generated raises the temperature of the gas to 450-460°C. By spraying condensate, the gas temperature is reduced to the index required by the process operation on the one hand; on the other hand, the steam is generated to increase the steam-gas ratio in the conversion gas, thereby reducing the consumption of external steam. The inter-stage water spray cooling process has high heat recovery efficiency and is simple and easy to operate. The high-level heat energy between the stages is directly converted into steam for this system, which increases the steam-gas ratio. The reaction temperature of the catalyst bed of the second stage of the intermediate converter can also be controlled by adjusting the amount of water spray. However, the spray range of the nozzle is limited, and it is very easy to malfunction and damage under high pressure. If the traditional installation method is used, not only the replacement and maintenance costs are high, but also the spray effect of the converter is greatly affected. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that the simple fixed converter spray structure is inconvenient to disassemble and repair and has a limited spray range, and proposes a converter spray device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A converter spray device comprises a water supply pipe rack, a load-bearing bracket and a water supply pipe are fixedly connected to the water supply pipe rack, and eight high-pressure spray nozzles are fixedly arranged on the water supply pipe rack through a connecting mechanism;

[0007] The water supply pipe rack is composed of an inner disc, an outer tube and two connecting tubes. The inner disc and the outer tube are concentrically arranged, and the midlines of the two connecting tubes are symmetrically connected between the inner disc and the outer tube.

[0008] Preferably, the load-bearing bracket is symmetrically fixedly connected to the lower end of the water supply pipe rack through the center line of the outer circular pipe, and the water supply pipe is installed on the water supply pipe rack through the outer circular pipe.

[0009] Preferably, one of the eight high-pressure nozzles is mounted on the inner disc, and the other seven of the eight high-pressure nozzles are mounted on the outer tube at equal distances in the circumferential direction.

[0010] Preferably, the connecting mechanism includes a set countersunk hole opened in the water supply pipe rack, and two limit groove racks are integrally connected to the set countersunk hole, and two limit protrusions corresponding to the limit groove racks are fixedly connected to the high-pressure nozzle, and a strong spring is fixedly connected to the limit protrusion, and a sealing gasket corresponding to the set countersunk hole is welded on the strong spring, a sealing ring groove is opened in the water supply pipe rack, and a sealing cover threadedly connected to the sealing ring groove is movably mounted on the high-pressure nozzle.

[0011] Preferably, the strong spring and the sealing gasket are both mounted on the high-pressure nozzle.

[0012] Preferably, the sealing ring groove is concentrically arranged with the sleeve countersunk hole, an internal thread is arranged in the sealing ring groove, and an external thread meshingly connected with the internal thread is arranged on the sealing cover.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model utilizes an inner disc, an outer tube and a connecting tube to form a hollow water supply pipe rack, and uses the water supply pipe rack to set a high-pressure nozzle located at a central position and seven circumferentially equidistantly distributed high-pressure nozzles to ensure that the eight high-pressure nozzles can achieve more comprehensive spraying.

[0015] 2. The utility model provides a concentrically arranged set countersunk hole and a sealing ring groove in the water supply pipe rack, and arranges a limiting protrusion corresponding to the limiting groove rack on the high-pressure nozzle. The limiting protrusion and a strong spring are used to set a sealing gasket that resists the set countersunk hole, and then a threaded connection is used between the sealing cover and the sealing ring groove to achieve stable and convenient disassembly and assembly connection between the high-pressure nozzle and the water supply pipe rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a converter spray device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the water supply pipe rack structure of a converter spray device proposed by the utility model;

[0018] Figure 3 This is a bottom view of a converter spray device proposed by the utility model;

[0019] Figure 4 This is a cross-sectional view of a converter spray device proposed by the utility model;

[0020] Figure 5This is an enlarged schematic diagram of the structure of part A of a converter spray device proposed by the utility model;

[0021] Figure 6 The utility model is a schematic diagram of the spraying range of eight high-pressure nozzles of a converter spraying device.

[0022] In the figure: 1. water supply pipe rack; 101. inner disc; 102. outer tube; 103. connecting pipe; 2. load-bearing bracket; 3. water supply pipe; 4. high-pressure nozzle; 5. set countersunk hole; 6. limit slot rack; 7. limit protrusion; 8. strong spring; 9. sealing gasket; 10. sealing ring groove; 11. sealing cover. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 6 A converter spray device includes a water supply pipe rack 1, to which a load-bearing bracket 2 and a water supply pipe 3 are fixedly connected, and the water supply pipe rack 1 is fixedly provided with eight high-pressure nozzles 4 through a connecting mechanism. By arranging eight evenly distributed high-pressure nozzles 4 on the water supply pipe rack 1, it is ensured that each high-pressure nozzle 4 has a specific spraying range, thereby ensuring the comprehensiveness of the spraying.

[0025] Please refer to the instruction manual for details Figure 2 The water supply pipe rack 1 is composed of an inner disc 101, an outer tube 102 and two connecting tubes 103. The inner disc 101 and the outer tube 102 are concentrically arranged, and the two connecting tubes 103 are symmetrically connected between the inner disc 101 and the outer tube 102 in the midline. The connecting tubes 103 realize the comprehensive circulation of water between the inner disc 101 and the outer tube 102.

[0026] The load-bearing bracket 2 is symmetrically fixedly connected to the lower end of the water supply pipe rack 1 through the center line of the outer circular pipe 102 to provide a stable and symmetrical support, and the water supply pipe 3 is installed on the water supply pipe rack 1 through the outer circular pipe 102 to provide water for the water supply pipe rack 1.

[0027] Please refer to the instruction manual for details Figure 1 With attached Figure 3 One of the eight high-pressure nozzles 4 is mounted on the inner disc 101, and the other seven of the eight high-pressure nozzles 4 are equidistantly mounted on the outer tube 102 in the circumferential direction. Figure 6 Each high-pressure nozzle 4 has a specific spraying range, and the spraying ranges of every two adjacent high-pressure nozzles 4 have an overlapping part, which effectively prevents spraying omissions.

[0028] The connecting mechanism includes a set countersunk hole 5 opened in the water supply pipe rack 1, and two limit groove frames 6 are integrally connected to the set countersunk hole 5, and two limit protrusions 7 corresponding to the limit groove frames 6 are fixedly connected to the high-pressure nozzle 4, and a strong spring 8 is fixedly connected to the limit protrusion 7, and a sealing gasket 9 corresponding to the set countersunk hole 5 is welded on the strong spring 8. A sealing ring groove 10 is opened in the water supply pipe rack 1, and a sealing cover 11 threadedly connected to the sealing ring groove 10 is movably mounted on the high-pressure nozzle 4. By opening a double-layer structure of the set countersunk hole 5, a double-layer set can be achieved on the water supply pipe rack 1. First, the connection stability between the high-pressure nozzle 4 and the water supply pipe rack 1 is strengthened, and at the same time, the sealing gasket 9 and the sealing cover 11 are used to improve the connection sealing to prevent leakage under high pressure.

[0029] The strong spring 8 and the sealing gasket 9 are both mounted on the high-pressure nozzle 4. When the high-pressure nozzle 4 is mounted in the mounting counterbore 5, the strong spring 8 is forced to contract, and at the same time, the sealing gasket 9 is sealed against the port in the mounting counterbore 5.

[0030] The sealing ring groove 10 is concentrically arranged with the set countersunk hole 5 , an internal thread is arranged in the sealing ring groove 10 , and an external thread meshingly connected with the internal thread is arranged on the sealing cover 11 , and the sealing cover 11 is bolted and raised and lowered along the high-pressure nozzle 4 to be threadedly connected with the sealing ring groove 10 .

[0031] It should be noted that the specific model and specifications of the high-pressure nozzle 4 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0032] In this way, the spraying operation not only sprays evenly, but also has a high degree of atomization, and the droplet diameter can be split into 0.1mm, so that 1m 3 The surface area of ​​water can reach 60,000m 2 , which is more than 12,000 times larger. Compared with conventional spraying, the heat transfer efficiency of the same volume of water is much higher. The use of LT series shift furnace spraying device saves the amount of cold shock water, and has a positive effect on improving the steam-gas ratio and protecting the catalyst.

[0033] The functional principle of the utility model can be explained through the following operation modes:

[0034] The high-pressure nozzle 4 is mounted in the mounting countersunk hole 5, so that the sealing gasket 9 abuts against the mounting countersunk hole 5, and the strong spring 8 is forced to contract;

[0035] Deflect the high-pressure nozzle 4 in the set counterbore 5 so that the limiting protrusion 7 is buckled on the limiting groove frame 6;

[0036] Rotate the sealing cover 11 upward on the high-pressure nozzle 4 so that the sealing cover 11 is threadedly connected with the sealing ring groove 10 to achieve fixed installation of the high-pressure nozzle 4 on the water supply pipe rack 1;

[0037] The water supply pipe rack 1 is provided with water through the water supply pipe 3 , and the water is sprayed comprehensively through eight high-pressure nozzles 4 .

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A converter spraying device, comprising a water supply pipe rack (1), characterized in that: The water supply pipe rack (1) is fixedly connected to a load-bearing bracket (2) and a water supply pipe (3), and the water supply pipe rack (1) is fixedly provided with eight high-pressure nozzles (4) via a connecting mechanism; The water supply pipe rack (1) is integrally composed of an inner disc (101), an outer tube (102) and two connecting tubes (103); the inner disc (101) and the outer tube (102) are concentrically arranged, and the midlines of the two connecting tubes (103) are symmetrically connected between the inner disc (101) and the outer tube (102).

2. A converter spraying device according to claim 1, characterized in that: The load-bearing support (2) is fixedly connected to the lower end of the water supply pipe rack (1) via the center line symmetrically of the outer circular pipe (102), and the water supply pipe (3) is installed on the water supply pipe rack (1) via the outer circular pipe (102).

3. A spraying device for a converter according to claim 2, characterized in that: One of the eight high-pressure nozzles (4) is mounted on the inner disc (101), and the other seven of the eight high-pressure nozzles (4) are mounted on the outer tube (102) at equal distances in the circumferential direction.

4. A spraying device for a converter according to claim 3, characterized in that: The connection mechanism comprises a set countersunk hole (5) provided in the water supply pipe rack (1), and two limit groove frames (6) are integrally connected in the set countersunk hole (5), and two limit protrusions (7) corresponding to the limit groove frames (6) are fixedly connected to the high-pressure nozzle (4), and a strong spring (8) is fixedly connected to the limit protrusion (7), and a sealing gasket (9) corresponding to the set countersunk hole (5) is welded to the strong spring (8), and a sealing ring groove (10) is provided in the water supply pipe rack (1), and a sealing cover (11) threadedly connected to the sealing ring groove (10) is movably provided on the high-pressure nozzle (4).

5. A spraying device for a converter according to claim 4, characterized in that: The strong spring (8) and the sealing gasket (9) are both mounted on the high-pressure nozzle (4).

6. A spraying device for a converter according to claim 5, characterized in that: The sealing ring groove (10) is arranged concentrically with the sleeve counterbore (5), an internal thread is arranged in the sealing ring groove (10), and an external thread meshingly connected with the internal thread is arranged on the sealing cover (11).

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