CN212900345U

CN212900345U - Transfusion tube

Info

Publication number: CN212900345U
Application number: CN202021446466.1U
Authority: CN
Inventors: 徐绍勇; 邓琳莉; 查吉利; 万恒飞; 宋晓宁
Original assignee: Hubei Qihong Thermal Equipment Co ltd
Current assignee: Hubei Qihong Thermal Equipment Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-06
Anticipated expiration: 2030-07-21

Abstract

The invention relates to a transfusion tube, which comprises a liquid inlet side winding heating tube, a liquid inlet side temperature thermocouple, a liquid inlet side heat preservation layer, a transfusion tube cover, a liquid outlet side winding heating tube, a liquid outlet side temperature thermocouple, a bent nozzle air inlet, a bent nozzle heat preservation layer, a bent nozzle shell, a bent nozzle inner tube, a bent nozzle liquid outlet, a transfusion tube liquid inlet, a transfusion tube inner tube, a transfusion tube liquid inlet side outer tube, a transfusion tube outer tube, a middle heat preservation heating module, a middle temperature thermocouple, a middle heating module heating device, a liquid outlet side heat preservation layer, a transfusion tube liquid outlet, a connecting hoop and the like. The device is used for heat preservation and conveying of the metal liquid. The invention overcomes the defects that the temperature of the melt is easy to drop, oxidize and slag in the traditional metal liquid transmission process, and the quality of the transmitted liquid is guaranteed, and the invention adopts various mixed heating modes and split structures, thereby facilitating the on-site maintenance of the infusion tube, reducing the failure rate, greatly reducing the maintenance cost and improving the convenience of maintenance and use.

Description

Transfusion tube

Technical Field

The invention relates to a liquid conveying pipe which is mainly applied to the fields of liquid heat preservation transmission and the like, in particular to upward heat preservation and lifting transmission of molten metal and provides high-quality molten metal for casting production.

Background

In the casting production process, metal melt with stable temperature parameters and qualified internal quality needs to be injected into a casting cavity.

At present, compared with a traditional metal melt lifting transmission pipeline, a common method is to wind a heating pipe outside a heat-resistant steel pipe, add a heat-insulating layer outside the heating pipe, and add a metal shell outside the heat-insulating layer, when the metal melt lifting transmission pipeline is used, the heating pipe is electrified to control the temperature of the transmission pipeline to be proper, and then transmission of high-temperature metal liquid is carried out. The other common method is that the inner pipe and the outer pipe of the infusion pipe are separated, the inner pipe is arranged in the U-shaped outer pipe, and the heating and heat preservation device is arranged in the outer pipe, so that the defect that the former method is inconvenient to maintain on site is overcome, but the U-shaped outer pipe cannot be manufactured at the positions where the infusion pipe is irregular and is bent, inclined or limited in space, so that the irregular positions are heated and cannot be set, only the heat preservation layer can be added, and the position is often cooled easily in the using process, so that the transmission metal liquid is solidified and cannot be transmitted. In addition, the current commercially available bent nozzle at the water outlet end of the infusion tube is generally of a pure metal structure, so that rapid cooling of the transmitted metal melt is easily caused, the metal melt is solidified to block the pipeline, or the product quality is influenced.

Disclosure of Invention

Aiming at the defects of the two commercially available metal liquid conveying devices, the invention develops the metal melt upward conveying device which has a good heat preservation effect and is convenient to clean and maintain on site.

According to the design, in order to prevent the temperature from dropping in the melt transmission process, the heating and heat preservation devices are arranged outside the transmission pipes to heat and control the temperature of the transmission pipes, so that the heat loss of the melt is prevented.

In addition, in order to facilitate the maintenance of the infusion tube in a production site, the infusion tube designed by the invention adopts a structure that the two ends are irregularly heated by winding heating pipes and the middle is provided with a U-shaped heating device and a cover, the whole infusion tube and the cover form a relative sealing structure, the inner tube and the outer tube of the infusion tube are of split structures, the inner tube is convenient to rapidly disassemble and replace, production workers can realize the site maintenance in a short time, the production is prevented from being influenced by a fault for a long time, and the labor intensity of the maintenance workers is reduced.

In addition, in order to reduce the temperature loss at the outlet of the infusion tube and the pouring nozzle too fast, the heat-insulating layer is arranged outside the pouring nozzle, so that the cooling effect of the pouring nozzle on the conveyed liquid is reduced.

A specific technical scheme for realizing the invention is as follows:

the utility model provides a transfusion tube, it is by feed liquor side winding heating pipe (1), feed liquor side temperature thermocouple (2), feed liquor side heat preservation (3), transfusion tube lid heat preservation (4), transfusion tube lid (5), play liquid side winding heating pipe (6), play liquid side temperature thermocouple (7), hubbed air inlet (8), hubbed heat preservation (9), hubbed shell (10), hubbed inner tube (11), hubbed liquid outlet (12), transfer line inlet (13), transfer line inner tube (14), transfer line feed liquor side outer tube (15), transfer line outer tube (16), middle part heat preservation heating module (17), middle section temperature thermocouple (18), middle section heating module heating device (19), play liquid side heat preservation (20), transfer line liquid outlet (21) and connect staple bolt (22) and constitute. The lower end of an inner tube (14) of the infusion tube is provided with an infusion tube inlet (13), the liquid inlet side and the liquid outlet side of the two ends of the inner tube (14) of the infusion tube are respectively wound with a liquid inlet side winding heating tube (1) and a liquid outlet side winding heating tube (6), the two ends are respectively provided with a liquid inlet side temperature thermocouple (2) and a liquid outlet side temperature thermocouple (7), the two ends are respectively provided with a liquid inlet side heat preservation layer (3) and a liquid outlet side heat preservation layer (20), the outer part of the liquid inlet side heat preservation layer (3) is provided with an outer tube (15) of the infusion tube, the inner tube (14) of the infusion tube is arranged in the outer tube (16) of the infusion tube, the outer tube (16) of the infusion tube is of a U-shaped structure with a straight middle part and an opening at the upper end, the inner side of the outer tube (, the inner side of the infusion tube cover (5) is provided with an infusion tube cover heat-insulating layer (4), the liquid outlet end of the infusion tube inner tube (14) is provided with a bent nozzle inner tube (11), the bent nozzle inner tube (11) is connected with the infusion tube inner tube (14) through a connecting hoop (22), the outer side of the bent nozzle inner tube (11) is provided with a bent nozzle heat-insulating layer (9) and a bent nozzle shell (10), the upper end of the bent nozzle inner tube (11) is provided with a bent nozzle air inlet (8), and the lower end of the bent nozzle inner tube is provided with a.

Compared with the prior similar liquid conveying device, the invention has the following effects:

1. the U-shaped heating module is adopted for heating the straight section of the infusion tube, the winding heating tube is adopted for heating the irregular bending section, the advantages of various heating modes are comprehensively utilized, and the respective disadvantages are overcome;

2. the outer tube of the infusion tube and the inner tube of the infusion tube are of a split structure, so that the on-site rapid maintenance and replacement are facilitated, and the maintenance efficiency is improved;

3. the inner tube of the infusion tube and the heating element are of self-replaceable structures, so that the defect that the whole infusion tube is scrapped due to any fault is avoided, the undamaged parts of the infusion tube can be reused, and the use and maintenance cost of the infusion tube is greatly reduced.

Description of the drawings:

FIG. 1 is a front view of a structural schematic diagram of an infusion tube of the present invention:

in the figure: 1-winding a heating pipe at the liquid inlet side; 2-liquid inlet side temperature thermocouple; 3-liquid inlet side heat insulation layer; 4-insulating layer of transfusion tube cover; 5, covering the infusion tube; 6-winding a heating pipe at the liquid outlet side; 7-liquid outlet side temperature thermocouple; 8-bent mouth air inlet; 9-bent mouth insulating layer; 10-bending mouth shell; 11-bending mouth inner tube; 12-a bent nozzle liquid outlet; 13-liquid inlet of the transfusion tube; 14-inner tube of infusion tube; 15-an outer pipe at the liquid inlet side of the infusion tube; 16-outer tube of infusion tube; 17-a middle heat-preserving heating module; 18-middle section temperature thermocouple; 19-a middle section heating module heating device; 20-liquid outlet side insulating layer; 21-liquid outlet of the infusion tube; and 22, connecting the hoop.

The specific implementation mode is as follows:

this transfer line during operation, link to each other transfer line inlet (13) bell mouth and the transport liquid source of the device, and through transfer line dead weight compression joint position, realize the zonulae occludens with the liquid source, install transfer line inner tube (14) in U type transfer line outer tube (16), and link to each other bend mouth inner tube (11) and transfer line inner tube (14) play liquid end through connecting staple bolt (22), cover transfer line tube cap (5), the circular telegram is to transfer line feed liquor side winding heating pipe (1), middle section heating module heating device (19) in play liquid side winding heating pipe (6) and middle part heat preservation heating module (17) heat, when heating certain process temperature, carry source liquid and begin toward the bend mouth inner tube (11) direction transport liquid through transfer line inner tube (14), realize the heat preservation transportation process of whole liquid.

Claims

1. A transfusion tube is characterized by comprising a liquid inlet side winding heating tube (1), a liquid inlet side temperature thermocouple (2), a liquid inlet side heat preservation layer (3), a transfusion tube cover heat preservation layer (4), a transfusion tube cover (5), a liquid outlet side winding heating tube (6), a liquid outlet side temperature thermocouple (7), a bent nozzle air inlet (8), a bent nozzle heat preservation layer (9), a bent nozzle shell (10), a bent nozzle inner tube (11), a bent nozzle liquid outlet (12), a transfusion tube liquid inlet (13), a transfusion tube inner tube (14), a transfusion tube liquid inlet side outer tube (15), a transfusion tube outer tube (16), a middle heat preservation heating module (17), a middle temperature thermocouple (18), a middle heating module heating device (19), a liquid outlet side heat preservation layer (20), a transfusion tube liquid outlet (21) and a connecting hoop (22), wherein the lower end of the transfusion tube (14) is provided with, a liquid inlet side winding heating pipe (1) and a liquid outlet side winding heating pipe (6) are respectively wound on the outer parts of the liquid inlet side and the liquid outlet side of the two ends of an inner pipe (14) of a liquid conveying pipe, a liquid inlet side temperature thermocouple (2) and a liquid outlet side temperature thermocouple (7) are respectively arranged on the two ends, a liquid inlet side heat preservation layer (3) and a liquid outlet side heat preservation layer (20) are respectively arranged on the two ends, a liquid conveying pipe liquid inlet side outer pipe (15) is arranged on the outer part of the liquid inlet side heat preservation layer (3), the inner pipe (14) of the liquid conveying pipe is installed in the outer pipe (16) of the liquid conveying pipe, the outer pipe (16) of the liquid conveying pipe is of a U-shaped structure with a straight middle part and an opening at the upper end, a middle heat preservation heating module (17) is installed on the inner side of the outer pipe (16) of, the liquid outlet end of the infusion tube inner tube (14) is provided with a bent nozzle inner tube (11), the bent nozzle inner tube (11) is connected with the infusion tube inner tube (14) through a connecting hoop (22), a bent nozzle heat-insulating layer (9) and a bent nozzle shell (10) are arranged on the outer side of the bent nozzle inner tube (11), a bent nozzle air inlet (8) is arranged at the upper end of the bent nozzle inner tube (11), and a bent nozzle liquid outlet (12) is arranged at the lower end of the bent nozzle inner tube.

2. The infusion tube according to claim 1, wherein the liquid inlet side of the inner tube (14) of the infusion tube is of a large arc right-angle structure, the liquid inlet end faces downwards, the lowest end of the inner tube (14) of the infusion tube is provided with an infusion tube liquid inlet (13), the infusion tube liquid inlet (13) is of a downward bell mouth structure, the diameter of the bell mouth is small at the top and large at the bottom, the angle of the bell mouth is 20-179 degrees, the liquid outlet side of the inner tube (14) of the infusion tube is of an inclined ascending structure, and the angle formed by the axial direction of the ascending section and.

3. The infusion tube according to claim 1, wherein the arc-shaped liquid inlet side and the arc-shaped liquid outlet side of the inner tube (14) of the infusion tube are respectively provided with the liquid inlet side winding heating tube (1) and the liquid outlet side winding heating tube (6), the middle section of the regular shape of the inner tube (14) of the infusion tube is provided with the U-shaped middle heat-insulating heating module (17), the middle heat-insulating heating module (17) is internally provided with the middle heating module heating device (19), and the three sections of the inner tube (14) of the infusion tube are respectively provided with the liquid inlet side temperature thermocouple (2), the middle temperature thermocouple (18) and the liquid outlet side temperature.

4. The infusion tube according to claim 1, characterized in that the outer tube (16) of the infusion tube is U-shaped with an upward opening, a U-shaped middle heat preservation and heating module (17) is arranged inside the infusion tube, the upper end of the outer tube (16) of the infusion tube is provided with an infusion tube cover (5) which can be turned over, and the inner part of the infusion tube cover (5) is provided with an infusion tube cover heat preservation layer (4).

5. The infusion tube according to claim 1, wherein the bent mouth inner tube (11) is provided with a bent mouth insulating layer (9) at the outer part and a bent mouth air inlet (8) at the upper part.