CN214305816U

CN214305816U - Distribution type hard sealing tee joint for fuel cell vehicle-mounted hydrogen supply system

Info

Publication number: CN214305816U
Application number: CN202120295316.3U
Authority: CN
Inventors: 余重阳; 毛国豪; 华磊; 黄志伟
Original assignee: Shanghai Usui Engine Parts Co ltd
Current assignee: Shanghai Usui Engine Parts Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-28
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a distribution type hard sealing tee joint for a fuel cell vehicle-mounted hydrogen supply system, which comprises a sensor seat, an air inlet/outlet and a mounting hole; the sensor seat is connected with the mounting hole through a connecting hole in the middle of the main pipe of the tee joint, and the air inlet/outlet is connected with the mounting hole through a connecting hole in the middle of the main pipe of the tee joint. The utility model has the characteristics that: using hydrogen embrittlement resistant materials, such as stainless steel SUS316L, TP316L, S31603, EN1.4435, 6061 aluminum, etc.; forging or machining; the roughness of the conical surface of the air inlet and the air outlet is below Rz3.2, and the cone angle is 60 degrees +/-10 degrees; the specification of the connecting thread is M12-M28. The utility model has the advantages that the integral forming forging tee joint is adopted, the fixed hole site is increased, and the sealing failure caused by vibration can be effectively reduced; the air inlet and outlet are in a metal hard sealing mode, so that the air inlet and outlet can not be influenced by temperature, the risk of aging is avoided, and the air inlet and outlet are convenient to install and disassemble.

Description

Distribution type hard sealing tee joint for fuel cell vehicle-mounted hydrogen supply system

Technical Field

The utility model belongs to the technical field of the gas transportation technique of the automobile-used hydrogen supply system of fuel cell and specifically relates to a distribution formula tee bend sealed firmly that is used for the automobile-mounted hydrogen supply system of fuel cell.

Background

The existing hydrogen supply system for fuel cell vehicles generally adopts a tee joint and a pipeline without fixed hole positions for connection between valves, and utilizes compression deformation of an O ring or a clamping sleeve to extrude the pipe wall to realize sealing, thereby carrying out gas delivery. The tee joint without the fixing hole is supported by the pipeline only, so that the sealing failure caused by resonance is easily caused; meanwhile, the O ring for sealing the air inlet and the air outlet is sensitive to temperature and easy to age; the cutting ferrule and the pipeline are not easy to disassemble after being sealed.

In order to solve the problems, the gas conveying device adopts a forging or machining distribution type tee joint to convey gas. The tee joint has a simple structure, and the number of fixing hole positions is increased, so that the sealing failure caused by vibration can be effectively reduced; meanwhile, the air inlet and the air outlet adopt a metal hard sealing type (figure 6), so that the air inlet and the air outlet are not influenced by temperature, have no aging risk and are convenient to install and disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of current tee bend, provide a distribution formula tee bend sealed firmly that is used for fuel cell vehicle-mounted hydrogen supply system. The application has three interfaces with the same or different specification and size; using hydrogen embrittlement resistant materials, such as stainless steel SUS316L, TP316L, S31603, EN1.4435, 6061 aluminum, etc.; forging or machining; the roughness of the conical surface of the air inlet and the air outlet is below Rz3.2, and the angle of the conical angle is 60 degrees +/-10 degrees; the specification of the connecting thread is M12-M28.

The utility model aims at realizing through the following technical scheme:

a distribution type hard sealing tee joint for a fuel cell vehicle-mounted hydrogen supply system is characterized by comprising an air inlet/outlet and a sensor seat; each air inlet/outlet is communicated with a through hole in the middle of the distribution type hard sealing tee joint; the sensor seat is communicated with a through hole in the middle of the distribution type hard sealing tee joint.

The gas inlet/outlet and the hydrogen conveying pipeline adopt a hard sealing connection mode.

The centers of the inlet/outlet port end portions are tapered at a taper angle of 60 DEG + -10 DEG along the axis.

The roughness Rz of the inlet/outlet ports is between 0 and 3.2, preferably between 0.01 and 3.2.

The outer contour of the air inlet/outlet is M12-M28 screw threads.

The sensor seats are distributed on one side, two sides or along the axial direction of the main pipe of the distributed hard sealing tee joint.

The middle of the sensor seat is a through hole which is communicated with the through hole of the tee joint and is connected with the sensor by internal threads or external threads.

The air inlet/outlet is distributed on one side or two sides of the distribution type hard sealing tee joint or along the axial direction of the through hole.

The middle of the air inlet/outlet is a through hole which is communicated with the through hole in the middle of the tee joint.

The number of the air inlet/outlet ports is 1-3; the specification and the size of the air inlets can be the same or different.

The number of the sensor bases is 0-3; the specification and the size of the sensor seat can be the same or different.

The number of the mounting holes is 1-5.

The structure of the air inlet/outlet port (fig. 1a, 1b), and the structure of the sensor (fig. 2a, 2b, 2 c).

The mounting holes can be set according to the actual needs in the automobile and can be distributed on one side or two sides of the distribution type hard sealing three-way main pipe.

Compared with the prior art, the utility model has the positive effects that:

the integrally formed forged tee joint is adopted, the fixed hole positions are increased, and the sealing failure caused by vibration can be effectively reduced; meanwhile, the air inlet and the air outlet adopt a metal hard sealing type (figure 6), so that the air inlet and the air outlet are not influenced by temperature, have no aging risk and are convenient to install and disassemble.

Drawings

FIG. 1a is a sectional view of a type I inlet/outlet port;

FIG. 1b is a cross-sectional view of a type II inlet/outlet port;

FIG. 2a is a cross-sectional view of a type I sensor mount;

FIG. 2b is a cross-sectional view of a type II sensor mount;

FIG. 2c is a cross-sectional view of a type III sensor mount;

FIG. 3 is a cross-sectional view of a dispensing hard-seal tee with a sensor;

FIG. 4 is an assembly view of the sensor-equipped distributive hard-seal tee and pipe;

FIG. 5a is a perspective view of a dispensing hard-seal tee with sensors;

FIG. 5b is a perspective view of a sensorless dispensing hard seal tee;

FIG. 6 hard seal cross-sectional view

Description of the reference symbols

The method comprises the following steps: an air inlet/outlet port is provided,

secondly, the step of: the sensor seat is provided with a sensor seat,

③: a mounting hole is formed in the base plate,

fourthly, the method comprises the following steps: a distribution type hard sealing three-way valve,

fifthly: the pipeline is connected with the water inlet pipe,

sixthly, the method comprises the following steps: a nut is arranged on the upper surface of the shell,

seventh, the method comprises the following steps: a sensor.

Detailed Description

The following provides a specific embodiment of the present invention for a distributed hard seal tee for a fuel cell vehicle-mounted hydrogen supply system.

Example 1

Referring to the attached drawings, a distribution type hard sealing tee joint used for a fuel cell vehicle-mounted hydrogen supply system has general functional components including an air inlet/outlet port (fig. 1a and 1b), a sensor seat (fig. 2a, 2b and 2c) and a mounting hole (fig. 3).

The outline of the distribution type hard sealing tee joint (forged) is integrally formed by using a forging process. The main pipe of the distribution type hard sealing tee joint is circular or elliptical and has the size

Adding one in the middle machine

A hole with one end closed or two ends communicated; 1-3 air inlets/outlets (figure 1a, figure 1b) and 0-3 sensor seats (figure 2a, figure 2b or figure 2c) can be arranged on the main pipe of the tee joint; the air inlet/outlet and the sensor seat are communicated with the through hole of the tee joint.

The air inlet/outlet is communicated with a through hole in the middle of the tee joint; the center of the end part forms a cone angle of 60 degrees +/-10 degrees along the axis, the roughness is below Rz3.2, the outer contour is M12-M28 threads, and the end part is connected with a nut of a pipeline through the threads; the number of the pipelines is 1-3, even if the number of the pipelines is large, the consistency of the trend of the pipelines can be kept, and the spatial layout is more reasonable (figure 4).

The sensor base can be set by the number of the sensors; when there is no sensor, the sensor receptacle may not be designed.

The positions of the mounting holes are set according to the arrangement requirement of the boundary, and the number of the mounting holes is 1-5 (figure 3).

The machining mode can also be used when the throughput is not sufficient to support the open die condition of forging.

The utility model has the characteristics that: hydrogen embrittlement resistant materials such as SUS316L, TP316L, S31603, EN1.4435 and 6061 aluminum; the forging/machining and rail adding are integrally formed, so that the weight is reduced, the material and the cost are saved, and meanwhile, the processing and the installation are convenient; the air inlet and outlet are of a conical surface hard seal structure with the roughness of the conical surface below Rz3.2, the conical angle of 60 degrees +/-10 degrees and the specification of the connecting thread of M12-M28, are not influenced by temperature and have no aging risk.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as within the protection scope of the present invention.

Claims

1. A distribution type hard sealing tee joint for a fuel cell vehicle-mounted hydrogen supply system is characterized by comprising an air inlet/outlet and a sensor seat; each air inlet/outlet is communicated with a through hole in the middle of the distribution type hard sealing tee joint; the sensor seat is communicated with a through hole in the middle of the distribution type hard sealing tee joint.

2. The three-way distribution type hard seal for the hydrogen supply system of the fuel cell vehicle as claimed in claim 1, wherein the gas inlet/outlet port and the hydrogen transportation pipeline are connected by a hard seal.

3. The distributive hard-sealing tee joint for a hydrogen supply system on a fuel cell vehicle as set forth in claim 1 wherein the centers of the ends of the inlet/outlet ports are tapered at a 60 ° ± 10 ° angle along the axis.

4. The distributive hard-sealing tee joint for a hydrogen supply system on a fuel cell vehicle as set forth in claim 1 wherein the roughness Rz of the inlet/outlet ports is between 0.01 and 3.2.

5. The distributive hard-sealing tee joint for a hydrogen supply system on a fuel cell vehicle as set forth in claim 1, wherein the external profile of the inlet/outlet port is a screw thread from M12 to M28.

6. The distributive hard-sealing tee joint for a hydrogen supply system on a fuel cell vehicle as set forth in claim 1 wherein the inlet/outlet port is threadably connected to a nut of the piping.

7. The distributed hard seal tee for a fuel cell vehicle hydrogen supply system of claim 1, wherein the mounting holes are distributed on one or both sides of the distributed hard seal gas rail main.

8. The distributive hard-sealing tee joint for a hydrogen supply system on a fuel cell vehicle as set forth in claim 1, wherein the number of the gas inlet/outlet ports is 1 to 3.