CN216479507U - Liquid helium metal hose for magnetic resonance medical detection equipment - Google Patents
Liquid helium metal hose for magnetic resonance medical detection equipment Download PDFInfo
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- CN216479507U CN216479507U CN202122449265.8U CN202122449265U CN216479507U CN 216479507 U CN216479507 U CN 216479507U CN 202122449265 U CN202122449265 U CN 202122449265U CN 216479507 U CN216479507 U CN 216479507U
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- butt joint
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Abstract
The utility model relates to a liquid helium metal hose for magnetic resonance medical detection equipment, and belongs to the technical field of fluid conveying. The flexible pipe comprises a flexible section and connecting pipes positioned at two ends of the flexible section, wherein the flexible section consists of an inner-layer metal corrugated pipe and an outer-layer metal net sleeve; the inner end of the connecting pipe extends into the metal mesh sleeve to be fixedly connected with the metal corrugated pipe in a butt joint mode, and a hoop is wrapped outside the butt joint position; the outer end of the connecting pipe is fixedly connected with the inner end of the threaded flange in a butt joint mode, the outer end of the threaded flange is fixedly connected with the inner end of the cone joint in a butt joint mode, and a locking nut is sleeved on the outer cone head of the cone joint; the two threaded flanges are respectively provided with a sensor threaded interface. The threaded flange can be directly used as a mounting base; compared with the traditional construction mode, the radial space of the metal hose is fully utilized, and the installation of various data monitoring instruments can be met without increasing the length of the connecting pipe intentionally; the leakage, pressure loss and other conditions of the pipeline system can be monitored in real time, so that the safety of the pipeline system is ensured.
Description
Technical Field
The utility model relates to a metal hose, in particular to a liquid helium metal hose for magnetic resonance medical detection equipment, and belongs to the technical field of fluid conveying.
Background
In recent years, MRI (magnetic resonance imaging) has become an important clinical examination apparatus. The core part of the medical magnetic resonance equipment is a superconducting magnet cooled by liquid helium, and the early magnetic resonance equipment mostly uses a rubber hose, has the defects of brittleness, easy cracking and easy aging and leakage at low temperature, and is gradually replaced by a metal hose at present. The liquid helium metal hose has the effects of compensating pipeline installation deviation and absorbing vibration, is a key part for transporting liquid helium, has the advantages of light weight, good flexibility, low temperature resistance and the like, but is not well designed, and still has the risks of pipeline failure, helium leakage and the like after long-term use.
Disclosure of Invention
The utility model aims to: the liquid helium metal hose for the magnetic resonance medical detection equipment can safely and stably operate for a long time at ultralow temperature of a liquid helium conveying pipeline system.
In order to achieve the purpose, the basic technical scheme of the liquid helium metal hose for the magnetic resonance medical detection equipment is as follows: the flexible corrugated pipe comprises a flexible section and connecting pipes positioned at two ends of the flexible section, wherein the flexible section is composed of an inner-layer metal corrugated pipe and an outer-layer metal net sleeve; the inner end of the connecting pipe extends into the metal mesh sleeve to be fixedly connected with the metal corrugated pipe in a butt joint mode, and a hoop is wrapped outside the butt joint position;
the outer end of the connecting pipe is fixedly connected with the inner end of the threaded flange in a butt joint mode, the outer end of the threaded flange is fixedly connected with the inner end of the cone joint in a butt joint mode, and a locking nut is sleeved outside the outer cone of the cone joint;
the two threaded flanges are respectively provided with a sensor threaded interface.
The utility model has the beneficial effects that: because the base like a threaded interface is welded on the connecting pipe, related detection equipment, instruments and the like can be installed on the base; the threaded flange can be directly used as an installation base, compared with the traditional construction mode, the radial space of the metal hose is fully utilized, and the installation of various data monitoring instruments can be met without increasing the length of the connecting pipe intentionally; the leakage, pressure loss and other conditions of the pipeline system are monitored in real time, and therefore the safety of the system is ensured.
The utility model has the further perfection that: the main body block of the threaded flange is provided with a central through hole, and straight pipe sections fixedly connected with adjacent pieces in a welded mode extend out of two sides of the main body block of the threaded flange; and two milling offset planes which are perpendicular to each other on the main body block are respectively provided with a sensor straight thread joint and a sensor conical thread joint which are communicated with the central through hole and are respectively connected with the pressure sensor and the pressure loss sensor.
The utility model has the further improvement that: the sensor straight thread interface of one of the two threaded flanges is in phase with the sensor conical thread interface of the other threaded flange and is 90 degrees out of phase with the sensor straight thread interface of the other threaded flange.
The utility model has the further perfection that: the inner end large-diameter section of the connecting pipe extends into the metal mesh sleeve to be fixedly connected with the metal corrugated pipe in a butt welding mode, and the outside of the large-diameter section at the butt joint position is wrapped with a hoop.
Drawings
The utility model will be further explained with reference to the drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the threaded flange in the embodiment of fig. 1.
Fig. 3 is a schematic sectional structure view a-a of fig. 2.
Fig. 4 is a schematic sectional structure view of B-B of fig. 2.
Fig. 5 is a schematic perspective view of fig. 2.
Detailed Description
Examples
The liquid helium metal hose for the magnetic resonance medical detection device of the embodiment includes, as shown in fig. 1, a flexible section 1 and connection pipes 2 located at two ends of the flexible section, where the flexible section 1 is composed of an inner metal corrugated pipe 1-1 and an outer metal mesh sleeve 1-2. The large-diameter section at the inner end of the connecting pipe 2 extends into the metal mesh sleeve 1-2 to be fixedly connected with the metal corrugated pipe 1-1 in a butt welding mode, and the large-diameter section at the butt joint is externally wrapped with a hoop 3 to ensure that the metal mesh sleeve is tightly pressed on the outer surface of the metal corrugated pipe and is not loosened.
The small diameter section of the outer end of the connecting pipe is fixedly connected with the inner end of the threaded flange 4 in a butt welding mode, and the outer end of the threaded flange 4 is fixedly connected with the inner end of the conical joint 5 with the 24-degree cone angle in a butt welding mode. The outer cone of the cone joint 5 is sleeved with a locking nut 7 and is provided with an O-shaped sealing ring 6.
The threaded flange 4 has a specific structure as shown in fig. 2 to 4, a main body block 4-1 of the threaded flange 4 is provided with a central through hole 4-3, two sides of the main body block respectively extend out of a straight pipe section 4-5 fixedly connected with an adjacent piece in a welding manner, two mutually perpendicular milling offset planes of the main body block 4-1 are respectively provided with a sensor straight threaded interface 4-2 and a sensor conical threaded interface 4-4 which are communicated with the central through hole 4-3, the sensor straight threaded interface of one of the two threaded flanges is in the same phase with the sensor conical threaded interface of the other threaded flange 4, and the phase difference of the sensor straight threaded interface of the other threaded flange 4 is 90 degrees.
When the liquid helium storage device is used, the O-shaped rubber rings 9 at the two ends of the liquid helium metal hose for the magnetic resonance medical detection equipment are respectively connected and sealed with the liquid helium storage device and the magnetic resonance medical detection equipment. The cone connector and the locking nut connection structure ensure connection strength, and the sensor cone thread and the straight thread interface of the threaded flange are respectively connected with the pressure sensor and the pressure loss sensor.
Practice proves that the liquid helium pipeline installation device is simple in structure, high in universality and convenient to install, and the running safety of the liquid helium pipeline is greatly improved.
The present invention is not limited to the above embodiments, and any technical solutions formed by equivalent substitutions fall within the scope of the claims of the present invention.
Claims (4)
1. A liquid helium metal hose for magnetic resonance medical detection equipment comprises a flexible section and connecting pipes positioned at two ends of the flexible section, wherein the flexible section consists of an inner metal corrugated pipe and an outer metal net sleeve; the inner end of the connecting pipe extends into the metal mesh sleeve to be fixedly connected with the metal corrugated pipe in a butt joint mode, and a hoop is wrapped outside the butt joint position; the method is characterized in that: the outer end of the connecting pipe is fixedly connected with the inner end of the threaded flange in a butt joint mode, the outer end of the threaded flange is fixedly connected with the inner end of the cone joint in a butt joint mode, and a locking nut is sleeved outside the outer cone of the cone joint; the two threaded flanges are respectively provided with a sensor threaded interface.
2. The liquid helium metal hose for a magnetic resonance medical examination apparatus according to claim 1, wherein: the main body block of the threaded flange is provided with a central through hole, and straight pipe sections fixedly connected with adjacent pieces in a welded mode extend out of two sides of the main body block of the threaded flange; and two milling offset planes which are perpendicular to each other on the main body block are respectively provided with a sensor straight thread joint and a sensor conical thread joint which are communicated with the central through hole and are respectively connected with the pressure sensor and the pressure loss sensor.
3. The liquid helium metal hose for a magnetic resonance medical examination apparatus according to claim 2, wherein: the sensor straight thread interface of one of the two threaded flanges is in phase with the sensor conical thread interface of the other threaded flange and is 90 degrees out of phase with the sensor straight thread interface of the other threaded flange.
4. The liquid helium metal hose for a magnetic resonance medical examination apparatus according to claim 3, wherein: the inner end large-diameter section of the connecting pipe extends into the metal mesh sleeve to be fixedly connected with the metal corrugated pipe in a butt welding mode, and the outside of the large-diameter section at the butt joint position is wrapped with a hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449265.8U CN216479507U (en) | 2021-10-12 | 2021-10-12 | Liquid helium metal hose for magnetic resonance medical detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449265.8U CN216479507U (en) | 2021-10-12 | 2021-10-12 | Liquid helium metal hose for magnetic resonance medical detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216479507U true CN216479507U (en) | 2022-05-10 |
Family
ID=81438188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122449265.8U Active CN216479507U (en) | 2021-10-12 | 2021-10-12 | Liquid helium metal hose for magnetic resonance medical detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216479507U (en) |
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2021
- 2021-10-12 CN CN202122449265.8U patent/CN216479507U/en active Active
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