CN213120727U - Ionization-radiation-resistant split type guided wave radar liquid level meter - Google Patents
Ionization-radiation-resistant split type guided wave radar liquid level meter Download PDFInfo
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- CN213120727U CN213120727U CN202021169210.0U CN202021169210U CN213120727U CN 213120727 U CN213120727 U CN 213120727U CN 202021169210 U CN202021169210 U CN 202021169210U CN 213120727 U CN213120727 U CN 213120727U
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Abstract
The utility model discloses a guided wave radar technical field, in particular to an ionization radiation resistant split type guided wave radar liquid level meter, which comprises a radar gauge outfit component, a radar detection component and a connecting cable, wherein the radar gauge outfit component and the radar detection component are detachably connected through the connecting cable; radar gauge outfit subassembly includes the gauge outfit, connection transform structure and first N type socket, and the electricity is connected between gauge outfit and connection transform structure's the one end, and the other end that connection transform structure one end is relative and first N type socket one end looks rigid coupling, the other end that first N type socket one end is relative and connecting cable releasable connection, the utility model discloses a carry out components of a whole that can function independently installation scheme with radar gauge outfit subassembly and radar detection subassembly, realize keeping apart the protectiveness of guided wave radar gauge outfit, reduce the resistant radiation design requirement of guided wave radar gauge outfit, and through the resistant radiation guided wave radar detection subassembly of design, solved the problem of guided wave radar in the high ionizing radiation occasion.
Description
Technical Field
The utility model relates to a guided wave radar technical field specifically is a split type guided wave radar level gauge of resistant ionization radiation.
Background
The guided wave radar liquid level meter is an electromagnetic wave distance measuring system based on a time travel principle, and when electromagnetic waves contact the surface of a measured object, the electromagnetic waves can be reflected back due to sudden change of dielectric constant. The time interval between the transmission and the reception of the electromagnetic waves is proportional to the distance from the radar probe to the measured medium, so that the distance from the instrument probe to the surface of the measured medium can be calculated.
The nuclear power application equipment has a severe use environment, so that a product is required to have a good radiation-resistant characteristic, the liquid level change response is quick and accurate, the measurement result is stable and reliable, and the guided wave radar in the current market mainly aims at general industrial application, can adapt to high temperature and high pressure, but cannot be applied to nuclear power application occasions with high ionizing radiation. Based on this, the utility model designs a split type guided wave radar level gauge of resistant ionization radiation to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a split type guided wave radar level gauge of resistant ionization radiation to solve above-mentioned technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: an ionization radiation resistant split type guided wave radar liquid level meter comprises a radar gauge head component, a radar detection component and a connecting cable, wherein the radar gauge head component and the radar detection component are detachably connected through the connecting cable;
the radar gauge head assembly comprises a gauge head, a connection conversion structure and a first N-type socket, wherein the gauge head is electrically connected with one end of the connection conversion structure, the other end, opposite to one end of the connection conversion structure, is fixedly connected with one end of the first N-type socket, the first N-type socket is electrically connected with the gauge head through the connection conversion structure, and the other end, opposite to one end of the first N-type socket, is detachably connected with a connection cable;
the radar detection assembly comprises an outer cover, a second N-type socket, an inner cover, an inner lining, a metal core, a connecting shell and a detection rod, wherein the outer cover, the inner cover and the connecting shell are fixedly connected through screws and threaded connections respectively;
the outer cover, the inner cover, the metal core, the connecting shell, the detection rod and the metal part in the second N-type socket are all made of metal nickel materials, and the lining and the non-metal part in the second N-type socket are all made of polyether-ether-ketone materials.
Preferably, the outside of the gauge outfit is a sealing structure covered by a metal shell, and the internal circuit of the gauge outfit is electrically connected with the connection conversion structure through an SMB joint.
Preferably, the two ends of the connecting cable are respectively welded with a third N-type socket and a fourth N-type socket which are matched with the first N-type socket and the second N-type socket through laser, and the connecting cable is a radio frequency coaxial cable filled with silicon dioxide.
Preferably, the outer wall of the connection conversion structure is connected with a first fixing flange through threads, and the outer wall of the connection shell is connected with a second fixing flange through threads.
Preferably, the inner cover, the lining, the metal core and the connecting shell are coaxially arranged to form a low-loss radio frequency coaxial transmission channel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a carry out components of a whole that can function independently installation scheme with radar gauge outfit subassembly and radar detection subassembly, realize keeping apart the protectiveness of guided wave radar gauge outfit, reduce the resistant radiation design requirement of guided wave radar gauge outfit, and through the resistant radiation guided wave radar detection subassembly of design, solved the use problem of guided wave radar in high ionizing radiation occasion.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is a schematic structural diagram of a radar gauge head assembly according to the present invention;
FIG. 4 is a schematic structural view of the middle radar detection assembly of the present invention
Fig. 5 is a schematic structural diagram of the connection cable of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a radar gauge head assembly; 11. a gauge head; 12. connecting the conversion structure; 13. a first N-type socket; 14. A first fixed flange; 2. a radar detection component; 21. an outer cover; 22. a second N-type socket; 23. an inner cover; 24. a liner; 25. a metal core; 26. connecting the shell; 27. a probe rod; 28. a second fixed flange; 3. connecting a cable; 31. a third N-type socket; 32. a fourth N-type socket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an ionization radiation resistant split type guided wave radar liquid level meter comprises a radar gauge head component 1, a radar detection component 2 and a connecting cable 3, wherein the radar gauge head component 1 and the radar detection component 2 are detachably connected through the connecting cable 3;
the radar gauge head assembly 1 comprises a gauge head 11, a connection conversion structure 12 and a first N-type socket 13, wherein the gauge head 11 is electrically connected with one end of the connection conversion structure 12, the other end, opposite to one end of the connection conversion structure 12, is fixedly connected with one end of the first N-type socket 13, the first N-type socket 13 is electrically connected with the gauge head 11 through the connection conversion structure 12, and the other end, opposite to one end of the first N-type socket 13, is detachably connected with the connecting cable 3;
the radar detection assembly 2 comprises an outer cover 21, a second N-shaped socket 22, an inner cover 23, an inner lining 24, a metal core 25, a connecting shell 26 and a detection rod 27, the outer cover 21, the inner cover 23 and the connecting shell 26 are fixedly connected through screws and threaded connections respectively, one end of the second N-shaped socket 22 is fixedly connected onto the inner cover 23, the second N-shaped socket 22 is located between the inner cover 23 and the outer cover 21, the second N-shaped socket 22 is detachably connected with the connecting cable 3, one end of the inner lining 24 penetrates through the inner cover 23 and is fixedly connected with the second N-shaped socket 22, the other end, opposite to one end of the inner lining 24, is fixedly connected with the metal core 25, the inner lining 24 and the metal core 25 are located in an inner cavity of the connecting shell 26, and the detection rod 27 penetrates through an inner cavity of the connecting shell;
the outer cover 21, the inner cover 23, the metal core 25, the connecting shell 26, the detection rod 27 and the metal part in the second N-type socket 22 are all made of metal nickel materials, the inner liner 24 and the non-metal part in the second N-type socket 22 are all made of polyether-ether-ketone materials, the design requirements of ionizing radiation resistance and corrosion resistance can be met by processing and manufacturing the metal nickel materials, and the polyether-ether-ketone materials are good in ionizing radiation resistance and small in thermal expansion coefficient and are non-metal materials approved in the nuclear power field.
Specifically, the outside seal structure for by metal casing cladding of gauge outfit 11, and 11 internal circuit of gauge outfit connect through the SMB and be connected transform structure 12 electricity and be connected, and the SMB connects and chooses 50 omega's connector for use, can guarantee internal circuit and the stability of being connected between the transform structure.
Specifically, the third N-type socket 31 and the fourth N-type socket 32 which are mutually matched with the first N-type socket 13 and the second N-type socket 22 are respectively welded at two ends of the connecting cable 3 through laser, the connecting cable 3 is a radio frequency coaxial cable filled with silicon dioxide, and the silicon dioxide cable can be used in the environment of high ionizing radiation, high temperature and high pressure as a radio frequency signal transmission cable.
Specifically, the outer wall of the connection conversion structure 12 is connected with a first fixing flange 14 through threads, the outer wall of the connection shell 26 is connected with a second fixing flange 28 through threads, and the radar gauge head assembly and the radar detection assembly can be independently installed respectively through the first fixing flange and the second fixing flange, so that the radar gauge head assembly can be fixed outside the ionizing radiation isolation device, and the influence of ionizing radiation on an electronic circuit system is avoided.
Specifically, the inner cover 23, the lining 24, the metal core 25 and the connecting outer shell 26 are coaxially arranged to form a low-loss radio frequency coaxial transmission channel, the low-loss transmission of radar signals is realized through the optimized design, and electromagnetic waves can be transmitted to the detection rod through the metal core part with the loss less than 0.2 dB.
One specific application example of this embodiment is:
when the device is used, the radar gauge head component 1 and the radar detection component 2 are respectively fixed through the first fixing flange 14 and the second fixing flange 28. The radar gauge head assembly 1 is fixed outside the ionizing radiation isolation device, so that the influence of ionizing radiation on an electronic circuit system is avoided, and the radar gauge head assembly 1 completes the functions of signal receiving, transmitting, processing, data transmission, displaying and the like; the radar detection component 2 is arranged in the tank body with high ionizing radiation for detection, and the radar detection component 2 completes the functions of fixing the detection rod 27 and transmitting electromagnetic wave measurement signals;
the guided wave radar liquid level meter is an electromagnetic wave distance measuring system based on a time travel principle, namely, a single-frequency point electromagnetic wave signal in the frequency range of 800 MHz-1 GHz, which is sent by a meter head 11 in a radar meter head component 1, passes through a connection conversion structure 12 and a first N-type socket 13 and is transmitted to a detector component 2 along a connection cable 3, when the electromagnetic wave contacts the surface of a measured object through a detection rod 27, the electromagnetic wave can be reflected back due to the mutation of a dielectric constant, and the reflected electromagnetic wave returns to the radar meter head 11 along an opposite path; the time interval between the transmission and the reception of the electromagnetic waves is proportional to the distance from the radar head 11 to the measured medium, and then the distance from the radar head 11 to the surface of the measured medium can be calculated by performing signal processing through a circuit inside the head 11.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (5)
1. The utility model provides a split type guided wave radar level gauge of resistant ionization radiation which characterized in that: the radar meter comprises a radar meter head component (1), a radar detection component (2) and a connecting cable (3), wherein the radar meter head component (1) and the radar detection component (2) are detachably connected through the connecting cable (3);
the radar gauge head assembly (1) comprises a gauge head (11), a connection conversion structure (12) and a first N-type socket (13), wherein the gauge head (11) is electrically connected with one end of the connection conversion structure (12), the other end, opposite to one end of the connection conversion structure (12), is fixedly connected with one end of the first N-type socket (13), the first N-type socket (13) is electrically connected with the gauge head (11) through the connection conversion structure (12), and the other end, opposite to one end of the first N-type socket (13), is detachably connected with a connecting cable (3);
radar detection subassembly (2) include enclosing cover (21), second N type socket (22), inner cup (23), inside lining (24), metal core (25), connect shell (26) and probe rod (27), respectively through screw and threaded connection looks rigid coupling between enclosing cover (21), inner cup (23) and the connection shell (26), second N type socket (22) one end rigid coupling is on inner cup (23), and second N type socket (22) are located between inner cup (23) and enclosing cover (21), second N type socket (22) and connecting cable (3) releasable connection, inside lining (24) one end is run through inner cup (23) and is with second N type socket (22) looks rigid coupling, the other end rigid coupling that inside lining (24) one end is relative has metal core (25), and inside lining (24) and metal core (25) all are located and connect shell (26) inner chamber, probe rod (27) run through connect shell (26) inner chamber and with between metal core (25) through the screw thread The connection can be disassembled;
the material of the metal part in the outer cover (21), the inner cover (23), the metal core (25), the connecting shell (26), the detection rod (27) and the second N-type socket (22) is metal nickel material, and the material of the nonmetal part in the inner liner (24) and the second N-type socket (22) is polyether-ether-ketone material.
2. The split guided wave radar liquid level gauge capable of resisting ionizing radiation according to claim 1, wherein: the outside of the gauge head (11) is a sealing structure coated by a metal shell, and an internal circuit of the gauge head (11) is electrically connected with the connection conversion structure (12) through an SMB joint.
3. The split guided wave radar liquid level gauge capable of resisting ionizing radiation according to claim 1, wherein: third N type socket (31) and fourth N type socket (32) that have mutually supported through laser welding respectively at connecting cable (3) both ends with first N type socket (13) and second N type socket (22), connecting cable (3) are the radio frequency coaxial cable by silica packing.
4. The split guided wave radar liquid level gauge capable of resisting ionizing radiation according to claim 1, wherein: the outer wall of the connection conversion structure (12) is connected with a first fixing flange (14) through threads, and the outer wall of the connection shell (26) is connected with a second fixing flange (28) through threads.
5. The split guided wave radar liquid level gauge capable of resisting ionizing radiation according to claim 1, wherein: the inner cover (23), the lining (24), the metal core (25) and the connecting shell (26) are coaxially arranged to form a low-loss radio frequency coaxial transmission channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021169210.0U CN213120727U (en) | 2020-06-22 | 2020-06-22 | Ionization-radiation-resistant split type guided wave radar liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021169210.0U CN213120727U (en) | 2020-06-22 | 2020-06-22 | Ionization-radiation-resistant split type guided wave radar liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213120727U true CN213120727U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021169210.0U Active CN213120727U (en) | 2020-06-22 | 2020-06-22 | Ionization-radiation-resistant split type guided wave radar liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213120727U (en) |
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- 2020-06-22 CN CN202021169210.0U patent/CN213120727U/en active Active
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