Ice blowing and heating device for expansion machine

Abstract

The utility model relates to an expansion machine ice blowing and heating device, which belongs to the technical field of expansion machine maintenance tools and comprises a main valve connected with an air inlet end of an expansion machine, a branch pipe connected to the main valve in a bypass manner, a second valve arranged on the branch pipe and used for controlling air flow, and an adapter pipe head arranged at the end part of the branch pipe, the other end of the adapter pipe head is movably connected with a spray pipe; the spray pipe is close to the expansion end of the expander; the branch pipe, the adapter pipe head and the spray pipe jointly form an airflow passage; the branch pipe, the adapter pipe head and the spray pipe form a gas path channel, and high-temperature gas at the gas inlet end of the expansion machine is led to the icing position of the expansion end, so that the temperature of the outer wall of the expansion end is increased, and icing is prevented; meanwhile, the spray pipe and the adapter are in spherical hinge joint, the spray pipe has more movable freedom degrees, airflow can be jetted to the expansion end from multiple angles, and higher operation flexibility is achieved.

Description

Technical Field

[0001] The utility model relates to an expander ice blowing and heating device, belonging to the technical field of expander maintenance tools. Background Art

[0002] After the expander has been running for a long time, the expansion end will be in a low temperature environment for a long time, and frost and ice will appear on the outer wall of the expansion end. The expansion end is equipped with a temperature and sealing gas speed detection device, which is easily affected by ice cover or condensed water, resulting in inaccurate measurement data, and then triggering false alarms or wrong control signals, such as the expander jumping, interrupting the entire process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an expander ice blowing and heating device to avoid frost and ice formation at the expansion end of the expander.

[0004] The utility model discloses an expander deicing and heating device, comprising: an expander, the expander comprising: an air inlet end and an expansion end; the air inlet end pipeline of the expander is connected with the deicing and heating device; the deicing and heating device comprises: a main valve connected with the air inlet end of the expander, a branch pipe is connected to the main valve, a second valve for controlling the air flow is arranged on the branch pipe, a switching pipe head is arranged at the end of the branch pipe, and a nozzle is movably connected at the other end of the switching pipe head;

[0005] The nozzle is close to the expansion end of the expander;

[0006] The branch pipe, adapter pipe and nozzle together constitute the air flow path.

[0007] Furthermore, the adapter pipe head comprises: an adapter plate, a blow pipe is arranged on the adapter plate, and a spherical hoop is arranged at the other end of the blow pipe.

[0008] Further, the adapter plate is connected to the outlet of the branch pipe;

[0009] The air blowing pipe is in a contraction shape from one end of the adapter plate to one end of the spherical hoop sleeve.

[0010] Furthermore, the nozzle includes a spherical tube head, one end of the spherical tube head is provided with a connecting tube, the other end of the connecting tube is connected to a hood-shaped tube, and a plurality of nozzles are evenly arranged on the inner side of the hood-shaped tube;

[0011] The spherical pipe head is hinged into the spherical hoop sleeve, and the two form a ball hinge;

[0012] The hood-shaped pipe hood is set on the expansion end, and the nozzle faces the expansion end.

[0013] Furthermore, the cover-shaped tube is bent into an arc shape, and a heat-insulating coating is provided on the outer wall of the cover-shaped tube.

[0014] Furthermore, the nozzle is in a contraction shape from the inlet end to the outlet end.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The branch pipe, adapter and nozzle form an air path, which guides the higher temperature gas at the inlet end of the expander to the ice formation at the expansion end, thereby increasing the temperature of the outer wall of the expansion end to prevent freezing; at the same time, the nozzle and the adapter are ball-jointed, and the nozzle has more freedom of movement, and can spray airflow to the expansion end from multiple angles, with higher operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an expander ice blowing and heating device of the utility model;

[0018] Figure 2 The utility model is a schematic cross-sectional structure diagram of a switching pipe head and a nozzle of an expander ice-blowing and heating device.

[0019] In the figure:

[0020] 1. expander; 101. air inlet end; 102. expansion end;

[0021] 2. Main valve;

[0022] 3. Branch pipe;

[0023] 4. Second valve;

[0024] 5. Adapter pipe; 501. Adapter plate; 502. Blowing pipe; 503. Ball hoop;

[0025] 6. Nozzle; 601. Spherical pipe head; 602. Connecting pipe; 603. Hood-shaped pipe; 604. Nozzle. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 2 As shown, this embodiment is implemented by the following technical scheme: the expander 1 includes: an air inlet end 101 and an expansion end 102; the air inlet end 101 pipeline of the expander 1 is connected with an ice-removing and heating device; the ice-removing and heating device includes: a main valve 2 connected to the air inlet end 101 of the expander 1, a branch pipe 3 is connected to the main valve 2, a second valve 4 for controlling the air flow rate is provided on the branch pipe 3, a switching pipe joint 5 is provided at the end of the branch pipe 3, and a nozzle 6 is movably connected at the other end of the switching pipe joint 5; the nozzle 6 is close to the expansion end 102 of the expander 1; the branch pipe 3, the switching pipe joint 5 and the nozzle 6 together constitute an air flow passage.

[0027] In this embodiment, the main valve 2 is used to control the on-off of the entire heating air flow, and the second valve 4 is used to adjust the air flow entering the branch pipe to meet different deicing requirements.

[0028] Specifically, the adapter pipe connector 5 includes an adapter plate 501 , on which an air blowing pipe 502 is disposed, and the other end of the air blowing pipe 502 is provided with a spherical hoop 503 .

[0029] Specifically, the adapter plate 501 is connected to the outlet of the branch pipe 3; the air blowing pipe 502 is contracted from one end of the adapter plate 501 to one end of the spherical hoop 503; the contraction design of the air blowing pipe 502 helps to increase the air flow speed and improve the deicing efficiency.

[0030] Specifically, the nozzle 6 includes a spherical tube head 601 , one end of which is provided with a connecting tube 602 , the other end of which is connected with a hood-shaped tube 603 , and a plurality of nozzles 604 are evenly arranged on the inner side of the hood-shaped tube 603 .

[0031] The spherical pipe head 601 is hinged to the spherical hoop 503, and the two form a ball hinge; the nozzle 6 is connected to the spherical hoop 503 through its spherical pipe head 601 to form a ball hinge. This design allows the nozzle 6 to flexibly adjust the angle within a certain range to meet the deicing needs of different positions of the expansion end 102.

[0032] Specifically, the cover-shaped tube 603 is bent into an arc shape, and a heat insulation coating is provided on the outer wall of the cover-shaped tube 603 .

[0033] Specifically, the nozzle 604 is in a contraction shape from the inlet end to the outlet end.

[0034] The hood-shaped tube 603 is hooded on the expansion end 102, and the nozzles 604 face the expansion end 102. The uniformly arranged nozzles 604 ensure that the warming airflow can act evenly and directly on the icing area.

[0035] The contraction-shaped design of the nozzle 604 helps to enhance the jet force of the airflow and improve the de-icing effect.

[0036] When the operator detects ice formation at the expansion end 102 of the expander, the main valve 2 is first opened to allow the heated airflow to enter the branch pipe 3. The airflow entering the branch pipe 3 is then controlled by adjusting the second valve 4 to meet the actual deicing requirements; the angle of the nozzle 6 is adjusted according to the ice position to ensure that the nozzle 604 is aimed at the ice area; the heated airflow is ejected through the nozzle 604 and directly acts on the ice area to melt and blow away the ice layer; after the ice layer is completely removed, the main valve 2 is closed to end the deicing operation.

[0037] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. An expander deicing and heating device, comprising an expander (1), the expander (1) comprising: An air inlet end (101) and an expansion end (102); The air inlet end (101) of the expander (1) is connected to an ice-removing and heating device, and the ice-removing and heating device is characterized in that: the ice-removing and heating device comprises: a main valve (2) connected to the air inlet end (101) of the expander (1), a branch pipe (3) is connected to the main valve (2), a second valve (4) for controlling the air flow rate is provided on the branch pipe (3), a switching pipe joint (5) is provided at the end of the branch pipe (3), and a nozzle (6) is movably connected to the other end of the switching pipe joint (5); The nozzle (6) is close to the expansion end (102) of the expander (1); The branch pipe (3), the adapter pipe head (5) and the nozzle (6) together form an air flow passage.

2. The expander ice removal and heating device according to claim 1, characterized in that: The adapter pipe head (5) comprises an adapter plate (501), an air blowing pipe (502) is arranged on the adapter plate (501), and a spherical hoop (503) is arranged at the other end of the air blowing pipe (502).

3. The expander ice removal and heating device according to claim 2, characterized in that: The adapter plate (501) is connected to the outlet of the branch pipe (3); The air blowing pipe (502) is in a contracted shape from one end of the adapter plate (501) to one end of the spherical hoop (503).

4. The expander ice removal and heating device according to claim 2, characterized in that: The nozzle (6) comprises a spherical tube head (601), one end of the spherical tube head (601) is provided with a connecting tube (602), the other end of the connecting tube (602) is connected to a hood-shaped tube (603), and a plurality of nozzles (604) are evenly arranged on the inner side of the hood-shaped tube (603); The spherical pipe head (601) is hinged to the spherical hoop (503), and the two form a spherical hinge; The hood-shaped tube (603) is hooded onto the expansion end (102), and the nozzle (604) faces the expansion end (102).

5. The expander ice removal and heating device according to claim 4, characterized in that: The cover-shaped tube (603) is bent into an arc shape, and a heat insulation coating is provided on the outer wall of the cover-shaped tube (603).

6. The expander ice removal and heating device according to claim 4, characterized in that: The nozzle (604) is in a contraction shape from the inlet end to the outlet end.

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