CN212199309U

CN212199309U - Gas mixer

Info

Publication number: CN212199309U
Application number: CN202020830205.3U
Authority: CN
Inventors: 曹丽敏; 杨旭; 潘志军; 姬利新; 康晓亮; 李建设
Original assignee: Hebei Jin Xi Xing Energy Saving Polytron Technologies Inc
Current assignee: Hebei Jin Xi Xing Energy Saving Polytron Technologies Inc
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-22
Anticipated expiration: 2030-05-18

Abstract

The utility model provides a gas mixer belongs to gas mixing equipment technical field. The utility model provides a pipe-core-pipe-gas-supply pipe-and-distributor, the pipe-core is used for the first gas to pass through, and one end is used for connecting with the air supply equipment or the air demand equipment; the core pipe is arranged in the main pipe, the periphery of the core pipe and the main pipe are arranged at intervals, and the core pipe is used for first gas to pass through; the gas transmission pipe penetrates through the main pipe to be connected with the front end of the core pipe and is used for supplying second gas to the core pipe; the uniform distributor is arranged in the mother pipe and behind the core pipe and used for dispersing the second gas output by the core pipe and mixing the first gas with the second gas. The utility model discloses a set up the core pipe in female pipe for the gaseous outside of first gaseous parcel second in the core pipe in female pipe, thereby the equipartition ware makes the gaseous gas that makes the pass through to the periphery diffusion of second compressed after that, makes first gaseous and the gaseous extrusion of second mix together, is favorable to guaranteeing gaseous intensive mixing, reduces the potential safety hazard.

Description

Gas mixer

Technical Field

The utility model belongs to the technical field of gas mixing equipment, more specifically say, relate to a gas mixer.

Background

The blast furnace oxygen enrichment has two modes, one is the oxygen enrichment in front of a blast furnace fan, and the other is the oxygen enrichment behind the blast furnace fan. In order to save energy consumption and reduce production cost, a front oxygen supply mode of a blast furnace blower is usually adopted, namely, the blast volume of the blast furnace blower is kept unchanged, low-pressure oxygen is mixed from the suction side of the blast furnace blower, so that the oxygen content in blast is increased, and the purpose of oxygen-enriched blast of the blast furnace is achieved. However, the oxygen delivery pipe is directly connected to the suction side of the blast furnace blower, so that the oxygen may be unevenly mixed even though passing through the blower, and in severe cases, the local oxygen concentration may be too high to cause combustion or explosion, so that the oxygen delivery pipe has certain dangers and potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas mixer to the oxygen boosting has the technical problem that has the potential safety hazard that the inhomogeneous probably leads to of oxygen mixture before solving the blast furnace fan that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the gas mixer comprises a main pipe, a core pipe, a gas pipe and an even distributor, wherein the main pipe is used for first gas to pass through, and one end of the main pipe is used for being connected with air supply equipment or air demand equipment; the core pipe is arranged in the main pipe, the periphery of the core pipe and the main pipe are arranged at intervals, and the core pipe is used for first gas to pass through; the gas transmission pipe penetrates through the main pipe to be connected with the front end of the core pipe and is used for supplying second gas to the core pipe; the uniform distributor is arranged in the mother pipe and behind the core pipe and used for dispersing the second gas output by the core pipe and mixing the first gas with the second gas.

In one embodiment of the invention, the applicator comprises a cone with a tip facing the core tube.

In an embodiment of the present invention, the conical surface of the conical body is provided with a plurality of flow guiding holes communicated with the rear end of the conical body.

In one embodiment of the present invention, the diversion holes are spirally arranged in the cone body; the cone body is of a cone structure or a cone-shaped cylinder structure.

In an embodiment of the present invention, the gas mixer further includes a flow guiding plate, the flow guiding plate is disposed in the main pipe in an inclined manner and is connected to the conical surface of the conical body and the inner wall of the main pipe respectively.

In one embodiment of the present invention, the flow guiding plate has a plurality of rings disposed on the periphery of the cone.

The utility model discloses an in one embodiment, female pipe includes the inducer, first taper pipe changeover portion, cavity section, second taper pipe changeover portion and the export section that set gradually and connect gradually along the flow direction of first gas, and cavity section internal diameter size is greater than inducer and export section, and core pipe, guide plate and equipartition ware are all established in the cavity section.

In one embodiment of the present invention, the rear end of the cone is directed to the second taper transition section; the air delivery pipe passes through the chamber section.

In an embodiment of the present invention, the gas mixer further includes a support disposed outside the main pipe.

In one embodiment of the present invention, the support includes a fixed support and a movable support juxtaposed to the fixed support.

The utility model provides a gas mixer's beneficial effect lies in: compared with the prior art, the utility model discloses a set up the core pipe in female pipe for the gaseous outside of first gaseous parcel second in the core pipe in female pipe, thereby the equipartition ware makes the gaseous gas that makes the pass through to the periphery diffusion of second compressed after that, makes first gas and the gaseous extrusion of second mix together, is favorable to guaranteeing gaseous intensive mixing, reduces the potential safety hazard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic cross-sectional structural diagram of a gas mixer according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a main pipe; 11. an inlet section; 12. a first cone transition section;

13. a chamber section; 14. a second cone transition section; 15. an outlet section;

20. a core tube; 30. a gas delivery pipe;

40. a uniform distributor; 41. a flow guide hole; 50. a baffle;

61. a fixed support; 62. and a movable support.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It is now described a gas mixer according to the present invention.

Referring to fig. 1, the gas mixer provided by the present invention includes a main pipe 10, a core pipe 20, a gas pipe 30 and an equilizer 40, wherein the main pipe 10 is used for the first gas to pass through, and one end of the main pipe is used for being connected with a wind supply device or a wind demand device; the core tube 20 is arranged in the main tube 10, and the periphery of the core tube is spaced from the main tube 10 for the first gas to pass through; the gas pipe 30 penetrates through the main pipe 10 and is connected with the front end of the core pipe 20 and used for supplying a second gas to the core pipe 20; the uniform distributor 40 is disposed in the mother pipe 10 and behind the core pipe 20, and is used for dispersing the second gas output from the core pipe 20 and mixing the first gas with the second gas.

The front and rear are herein referred to the direction of the flow of the first gas in the header, with upwind being the front and downwind being the rear.

The utility model provides a gas mixer compares with prior art, through setting up core pipe 20 in female pipe 10 for the gaseous outside of first gaseous parcel of second in core pipe 20 in female pipe 10, thereby uniform distributor 40 makes the gaseous gas that makes the passing through to the periphery diffusion of second compressed after that, makes first gas and the gaseous extrusion of second mix together, is favorable to guaranteeing gaseous intensive mixing, reduces the potential safety hazard.

As a specific embodiment of the gas mixer provided by the present invention, the uniform distributor 40 includes a conical body with a tip facing the core tube 20, so as to utilize the conical surface to uniformly distribute and extrude the gas. The conical surface of the conical body is provided with a plurality of flow guide holes 41 communicated with the rear end of the conical body, so that part of gas can pass through the flow guide holes, the flow state of the gas flow in front of and behind the conical body is changed, more turbulent flows are formed, and the mixing of the gas is facilitated. The flow guiding holes 41 are spirally arranged in the conical body, so that spiral airflow is formed behind the conical body, and gas mixing is facilitated. The cone body can be a cone structure or a cone-barrel structure.

As a specific implementation manner of the gas mixer, the gas mixer further includes the guide plate 50, and the guide plate 50 is inclined and arranged in the main pipe 10, and is respectively connected with the conical surface of the conical body and the inner wall of the main pipe 10, so as to change the flow state of the air flow around the conical body, form the spiral air flow after the conical body, and facilitate the sufficient mixing of the gas. The guide plates 50 are provided with a plurality of guide plates which are annularly arranged on the periphery of the conical body so as to improve the mixing effect.

As a specific embodiment of the gas mixer provided by the utility model, female pipe 10 includes along the direction of flow of first gas setting gradually and the inducer 11, first taper pipe changeover portion 12, cavity section 13, second taper pipe changeover portion 14 and the export section 15 that connect gradually, and cavity section 13 internal diameter size is greater than inducer 11 and export section 15, and core pipe 20, guide plate 50 and uniform distributor 40 all establish in cavity section 13. The rear end of the cone body faces the second cone transition section 14, so that the passing air impacts the second cone transition section 14 to be more fully mixed; the air delivery pipe 30 passes through the chamber section 13.

As a specific embodiment of the gas mixer provided in the present invention, the gas mixer further includes a support installed outside the main pipe 10. The support comprises a fixed support 61 and a movable support 62 which is arranged in parallel with the fixed support 61 so as to be installed at different positions. The movable support 62 can be arranged outside the mother pipe 10 in an axial sliding manner along the mother pipe 10.

The utility model discloses when using in the blast furnace for in the pure oxygen more mixes the air uniformly, its mixed purity changes at 1% within range fluctuation. Can effectively prevent the combustion or explosion caused by uneven oxygen mixing and overhigh local oxygen concentration.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A gas mixer, comprising:

the main pipe is used for the first gas to pass through, and one end of the main pipe is used for being connected with air supply equipment or air demand equipment;

the core pipe is arranged in the main pipe, arranged at intervals with the main pipe at the periphery and used for the first gas to pass through;

the gas transmission pipe penetrates through the main pipe to be connected with the front end of the core pipe and is used for supplying second gas to the core pipe; and

and the uniform distributor is arranged in the mother pipe and behind the core pipe and is used for dispersing the second gas output by the core pipe and mixing the first gas with the second gas.

2. The gas mixer of claim 1, wherein: the uniform distributor comprises a conical body with the tip facing the core pipe.

3. The gas mixer of claim 2, wherein: the conical surface of the conical body is provided with a plurality of flow guide holes communicated with the rear end of the conical body.

4. The gas mixer of claim 3, wherein: the flow guide holes are spirally arranged in the cone body; the cone body is of a cone structure or a cone-barrel structure.

5. The gas mixer of claim 2, wherein: the gas mixer further comprises a guide plate, wherein the guide plate is obliquely arranged in the main pipe and is respectively connected with the conical surface of the conical body and the inner wall of the main pipe.

6. The gas mixer of claim 5, wherein: the flow guide plate is provided with a plurality of rings arranged on the periphery of the conical body.

7. The gas mixer of claim 2, wherein: female pipe includes along the direction of flow of first gas inlet section, first taper pipe changeover portion, cavity section, second taper pipe changeover portion and the export section that sets gradually and connect gradually, cavity section internal diameter size is greater than the inlet section with the export section, core pipe, guide plate with the equipartition ware is all established in the cavity section.

8. The gas mixer of claim 7, wherein: the rear end of the cone body faces the second taper pipe transition section; the air delivery pipe passes through the chamber section.

9. The gas mixer of claim 1, wherein: the gas mixer further comprises a support arranged on the outer side of the main pipe.

10. The gas mixer of claim 9, wherein: the support comprises a fixed support and a movable support arranged in parallel with the fixed support.