CN211783665U

CN211783665U - Thermal gas mass flow meter for oxygen measurement

Info

Publication number: CN211783665U
Application number: CN202020770688.2U
Authority: CN
Inventors: 张绍国; 谢敏
Original assignee: Lianyungang Wantai Pharmaceutical Excipients Technology Co ltd
Current assignee: Lianyungang Wantai Pharmaceutical Excipients Technology Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-10-27
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a thermal gas mass flowmeter for oxygen measurement, which comprises a meter head, wherein an installation head is installed at the bottom of the meter head, a first fixed lug is fixed at the bottom end of the installation head, a sleeve pipe is installed at the bottom of the first fixed lug, an insertion rod is arranged inside the sleeve pipe, a plurality of buffer components are uniformly distributed on the circumference of the insertion rod, a second fixed lug is arranged at the bottom end of the sleeve pipe, a measuring pipe is installed at the bottom end of the second fixed lug, a measuring probe is installed at the bottom end of the insertion rod, the bottom end of the measuring probe sequentially passes through the bottom wall of the sleeve pipe and the second fixed lug and is inserted into the measuring pipe, the buffer components comprise an arc plate fixedly connected with the inner wall of the sleeve pipe, two connecting sheets are fixed at one side of the arc plate, a supporting plate is connected between the connecting sheets, a plurality of limiting holes are uniformly distributed on the supporting, the utility model has the characteristics of measurement accuracy is high, long service life etc.

Description

Thermal gas mass flow meter for oxygen measurement

Technical Field

The utility model relates to a fluid metering instrument technical field specifically is a gaseous mass flow meter of hot type for oxygen measurement.

Background

The volume of a fluid is a function of fluid temperature and pressure and is a dependent variable, while the mass of a fluid is a quantity that does not change with changes in time, space temperature, and pressure. A thermal mass flowmeter is a flow meter that measures a fluid mass flow rate by using a change in a temperature field generated when a fluid flows through a pipe heated by an external heat source, or by using a relationship between energy required for raising the fluid temperature by a certain value when the fluid is heated and the fluid mass.

In the working process of the existing thermal mass flowmeter, the inserted rod can shake due to the pressure action of fluid in a measuring pipeline, and the stability of the inserted rod and a measuring probe is reduced due to obvious vibration of the inserted rod when the pressure is overlarge, so that the measuring result is influenced; meanwhile, the inserted rod receives impact pressure, and the inserted rod is seriously damaged, so that the service life is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gaseous mass flow meter of hot type for oxygen is measured to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a gaseous mass flow meter of hot type for oxygen measurement, includes the gauge outfit, the installation head is installed to the bottom of gauge outfit, the bottom mounting of installation head has first fixed ear, the telescopic pipe is installed to the bottom of first fixed ear, the inside of telescopic pipe is equipped with the inserted bar, the circumference equipartition all around of inserted bar has a plurality of buffering subassemblies, the bottom of telescopic pipe is equipped with the fixed ear of second, survey buret is installed to the fixed ear bottom of second, measuring probe is installed to the bottom of inserted bar, the measuring probe bottom is passed in proper order the fixed ear of telescopic pipe diapire and second, and insert the inside of survey buret.

Furthermore, the buffering component comprises an arc plate fixedly connected to the inner wall of the sleeve pipe, two connecting plates are fixed to one side of the arc plate, a supporting plate is connected between the two connecting plates, a plurality of limiting holes are uniformly distributed in the supporting plate, fixing rods matched with the limiting holes are arranged in the limiting holes respectively, a fixed pulley is installed at one end of each fixing rod, an elastic air bag is connected to the other end of each fixing rod, two connecting rods are connected to one side of each elastic air bag, and a buffering spring is connected between each connecting rod and the arc plate.

Furthermore, each fixed pulley is arranged in a plurality of sliding grooves uniformly distributed on the outer wall of the inserted bar, and one end of each fixed pulley is in contact with the corresponding sliding groove.

Furthermore, one ends of the two connecting rods, which are far away from the elastic air bag, are movably connected through a hinge, and the included angle between the two connecting rods is 70-80 degrees.

Furthermore, two elastic circular rings are sleeved outside the inserted rod and are respectively arranged on the upper side and the lower side of the buffer assembly.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model discloses, through being provided with two elasticity rings and a plurality of equipartition inserted bar buffer assembly all around and slow down the pressure shock that the inserted bar received, buffer assembly includes a plurality of elastic airbags and a plurality of buffer spring simultaneously, and buffering effect is good, is convenient for improve the stability of inserted bar and measuring probe work, helps improving measurement accuracy; through the cushioning effect of buffer unit, be convenient for effectively protect the inserted bar, help improving the life of inserted bar and measuring probe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic view of the structure of the region a in fig. 1 according to the present invention;

FIG. 3 is a schematic structural view of the cushion assembly of the present invention;

FIG. 4 is a schematic view of the installation of the cushion assembly of the present invention;

in the figure: 1. a gauge head; 2. a mounting head; 3. a first fixing lug; 4. a quill tube; 5. inserting a rod; 51. a measuring probe; 52. an elastic ring; 53. a chute; 6. a second fixing lug; 7. a measurement tube; 8. a buffer assembly; 81. connecting sheets; 82. a support plate; 821. a limiting hole; 83. a fixed pulley; 84. fixing the rod; 85. an elastic air bag; 86. a buffer spring; 87. a connecting rod; 88. a circular arc plate.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a gaseous mass flow meter of hot type for oxygen measurement, including gauge outfit 1, installation head 2 is installed to the bottom of gauge outfit 1, the bottom mounting of installation head 2 has first fixed ear 3, sleeve pipe 4 is installed to the bottom of first fixed ear 3, sleeve pipe 4 passes through the fix with screw on first fixed ear 3, the inside of sleeve pipe 4 is equipped with inserted bar 5, the circumference equipartition all around of inserted bar 5 has a plurality of buffering subassemblies 8, the quantity of buffering subassembly 8 is four, sleeve pipe 4's bottom is passed through the bolt fastening and is had the fixed ear 6 of second, survey buret 7 is installed to the fixed ear 6 bottom of second, measuring probe 51 is installed to the bottom of inserted bar 5, measuring probe 51 bottom passes sleeve pipe 4 diapire and the fixed ear 6 of second in proper order, and insert inside surveying buret 7, inserted bar 5 not with sleeve pipe 4 fixed connection.

The buffer component 8 is fixedly connected with an arc plate 88 on the inner wall of the sleeve pipe 4, the arc plate 88 is fixed on the inner wall of the sleeve pipe 4 through screws, one side of the arc plate 88 is fixedly welded with two connecting sheets 81, a supporting plate 82 is connected between the two connecting sheets 81, a plurality of limiting holes 821 are uniformly distributed on the supporting plate 82, a fixing rod 84 matched with the limiting holes 821 is respectively arranged in each limiting hole 821, one end of the fixing rod 84 is provided with a fixed pulley 83 through a screw, the other end of the fixing rod is connected with an elastic air bag 85, one side of the elastic air bag 85 is connected with two connecting rods 87, the elastic air bag 85, the fixing rod 84 and the connecting rods 87 are fixed through bonding, a buffer spring 86 is connected between each connecting rod 87 and the arc plate 88, the two ends of the buffer spring 86 are fixed through spot welding, when the inserted bar 5 is pressed in the measuring pipe 7, the inserted bar 5 shakes, the stability of the inserted bar 5 is improved, and meanwhile, the damage to the inserted bar 5 is reduced.

Each fixed pulley 83 is installed in a plurality of chutes 53 evenly distributed on the outer wall of the inserted bar 5, one end of each fixed pulley 83 contacts with the corresponding chute 53, and through the matching of the fixed pulleys 83 and the chutes 53, the fixed pulleys 83 are clamped in the chutes 53, so that the inserted bar 5 is limited and installed, the inserted bar 5 is convenient for extruding each buffer component 8, and the pressure received by the inserted bar 5 is convenient for buffering.

The ends of the two connecting rods 87 far away from the elastic air bag 85 are movably connected through a hinge, an included angle between the two connecting rods 87 is 70-80 degrees, and the two connecting rods 87 are connected to form a V-shaped structure, so that the air bag can drive the two connecting rods 87 to move, and further the buffer spring 86 can be driven to generate elastic deformation.

Two elastic rings 52 are sleeved outside the inserting rod 5, the two elastic rings 52 are respectively arranged on the upper side and the lower side of the buffering component 8, the elastic rings 52 are fixedly connected with the inner wall of the sleeve pipe 4, the inserting rod 5 is subjected to pressure generation to shake, meanwhile, the elastic rings 52 are extruded, impact force received by the inserting rod 5 is further buffered, stable work of the inserting rod 5 is facilitated, and measuring accuracy is improved.

The working principle is as follows: when the flowmeter works, in the measuring process, the inserting rod 5 and the measuring probe 51 on the inserting rod 5 are under the action of the oxygen pressure in the measuring tube 7, so that the inserting rod 5 can shake, the inserting rod 5 shakes to extrude the fixed pulleys 83 and the two elastic rings 52 around the inserting rod 5, each fixed pulley 83 drives each fixed rod 84 to move along the corresponding limiting hole 821, each elastic air bag 85 is deformed, the connecting rod 87 connected to each elastic air bag 85 is further driven to move, the connecting rod 87 drives the buffer spring 86 to elastically deform, the pressure received by the inserting rod 5 is effectively buffered through the elastic deformation of the elastic rings 52, the elastic air bags 85 and the buffer spring 86, the shake of the inserting rod 5 is greatly reduced, the stable work of the inserting rod 5 and the measuring probe 51 is facilitated, and the measuring accuracy is improved; simultaneously through a plurality of equipartitions at inserted bar 5 buffering subassembly 8 all around, slow down survey buret 7 pipeline internal pressure that inserted bar 5 received greatly, help improving the protection to inserted bar 5, reduce its harm, improve its life.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal gas mass flow meter for oxygen measurement, characterized by: including gauge outfit (1), installation head (2) are installed to the bottom of gauge outfit (1), the bottom mounting of installation head (2) has first fixed ear (3), sleeve pipe (4) are installed to the bottom of first fixed ear (3), the inside of sleeve pipe (4) is equipped with inserted bar (5), the circumference equipartition all around of inserted bar (5) has a plurality of buffering subassemblies (8), the bottom of sleeve pipe (4) is equipped with the fixed ear of second (6), survey buret (7) are installed to the fixed ear of second (6) bottom, measuring probe (51) are installed to the bottom of inserted bar (5), measuring probe (51) bottom is passed in proper order sleeve pipe (4) diapire and the fixed ear of second (6), and insert survey inside buret (7).

2. A thermal gas mass flow meter for oxygen measurement according to claim 1, characterized in that: buffer unit (8) including the rigid coupling in arc board (88) of cover tube (4) inner wall, one side of arc board (88) is fixed with two connection pieces (81), two be connected with backup pad (82) between connection piece (81), a plurality of spacing holes of equipartition (821) are gone up in backup pad (82), each be equipped with dead lever (84) rather than the adaptation in spacing hole (821) respectively, fixed pulley (83) are installed to the one end of dead lever (84), and its other end is connected with elasticity gasbag (85), one side of elasticity gasbag (85) is connected with two connecting rods (87), each connecting rod (87) with be connected with buffer spring (86) between arc board (88).

3. A thermal gas mass flow meter for oxygen measurement according to claim 2, characterized in that: each fixed pulley (83) is arranged in a plurality of sliding grooves (53) uniformly distributed on the outer wall of the inserted rod (5), and one end of each fixed pulley (83) is in contact with the corresponding sliding groove (53).

4. A thermal gas mass flow meter for oxygen measurement according to claim 2, characterized in that: one ends of the two connecting rods (87) far away from the elastic air bag (85) are movably connected through a hinge, and an included angle between the two connecting rods (87) is 70-80 degrees.

5. A thermal gas mass flow meter for oxygen measurement according to claim 1, characterized in that: two elastic rings (52) are sleeved outside the inserted rod (5), and the two elastic rings (52) are respectively arranged on the upper side and the lower side of the buffer component (8).