CN205333139U - Ultra -temperature flowmeter with protect function - Google Patents

Abstract

The utility model provides an ultra -temperature flowmeter with protect function, including surveying buret and connected integrating instrument, survey the connecting seat, air chamber seat, the transitional coupling union coupling that connect gradually through from the bottom up between buret and the integrating instrument, be equipped with the sensor in the air chamber seat, still include the protection architecture who is connected with air chamber seat, protection architecture includes a circular steel pipe, the one end processing of shown circular steel pipe have with air chamber seat in interior screw -thread fit's external screw thread, other end integrated into one piece has the boss ring, the one end and the bellows joint of circular steel pipe are kept away from to the boss ring, one end that bellows and boss ring are connected is equipped with the connection ring, the other end be equipped with with the target pole welded welding of sensor mouthful, the connecting seat is equipped with fin group respectively with the outer wall of transitional coupling pipe. The utility model discloses keep apart temperature, impurity, also influence transducer sensitivity, life. The setting of fin group, the precision of measurement is higher, and stability is better.

Description

There is the superhigh temperature effusion meter of defencive function

Technical field

This utility model relates to effusion meter, particularly relates to a kind of superhigh temperature effusion meter with defencive function。

Background technology

The existing effusion meter for fluid metering does not generally have protection structure, but requires higher industrial equipment for some measuring accuracies, in order to improve the measuring accuracy of fluid flow, is also adopted by the inverted method of effusion meter or increases groups of fins mode。But sensor contacts with medium all the time, it is easy to stifled, card phenomenon occurs, cause measuring and measuring accuracy is not high。

It addition, existing high temperature fluid medium measuring accuracy is low, the temperature born mainly due to sensor is relatively low。Easily produce null offset or damage at high operating temperatures and cause measuring accuracy low and cannot measure。

Utility model content

For the deficiencies in the prior art, the utility model proposes and a kind of improve superhigh temperature fluid metering precision, stability has the superhigh temperature effusion meter of defencive function。

The technical solution of the utility model is achieved in that a kind of superhigh temperature effusion meter with defencive function; including measuring pipe and connected integrating instrument; described measurement is connected by the connection seat being sequentially connected with from top to bottom, air chamber base, transitional connection pipe between pipe and integrating instrument; it is provided with sensor in described air chamber base; also include the protection structure being connected with air chamber base; described protection structure includes a round steel pipe; one end processing of shown round steel pipe has and the external screw thread of the screw-internal thread fit in air chamber base, and the other end is integrally formed with boss annulus；Described boss annulus is connected with corrugated tube away from one end of round steel pipe, one end that described corrugated tube is connected with boss annulus is provided with connection annulus, the other end is provided with the outer wall of the soldering opening that the target bar with sensor welds, described connection seat and transitional connection pipe and is respectively equipped with groups of fins。

Wherein, the sidewall of described round steel pipe has two concentric fixing holes。

Specifically, the length of described round steel pipe is more than or equal to the length connecting seat。

Further, described corrugated tube is placed in measurement pipe。

Further, described boss annulus connects with the connection boxing on corrugated tube。

Further, described connection seat is made up of 304 stainless steel materials。

Compared with prior art, the beneficial effects of the utility model are: when the target bar of sensor is by fluid media (medium) thrust, corrugated tube can along with institute's stress Free Compression and extension。Thus isolated temperature, impurity, nor affecting on transducer sensitivity, making environment that the sensor energy Applicable temperature of effusion meter is higher and not affecting certainty of measurement, also having ensured sensor stability, reliability simultaneously。And sensor is thoroughly isolated with measuring medium, therefore extends sensor service life。The setting of groups of fins, has reached purpose is better thermally isolated, in order to it is wider that effusion meter is suitable for, and the precision of metering is higher, and stability is better。

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of round steel pipe in utility model；

Fig. 3 is the structural representation of corrugated tube in utility model；

Fig. 4 is the structural representation protecting structure in this utility model。

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。

Referring to Fig. 1 to Fig. 4; a kind of superhigh temperature effusion meter with defencive function; including measuring pipe 7 and connected integrating instrument 1; connected by the connection seat 6 being sequentially connected with from top to bottom, air chamber base 3, transitional connection pipe 8 between described measurement pipe 7 and integrating instrument 1; it is provided with sensor 2 in described air chamber base 3; also include the protection structure being connected with air chamber base 3; described protection structure includes a round steel pipe 10; one end processing of shown round steel pipe 10 has the external screw thread 11 with the screw-internal thread fit in air chamber base 3, and the other end is integrally formed with boss annulus 12；Described boss annulus 12 is connected with corrugated tube 15 away from one end of round steel pipe 10, one end that described corrugated tube 15 is connected with boss annulus 12 is provided with connection annulus, the other end is provided with the soldering opening 9 that the target bar 4 with sensor 2 welds, and the outer wall of described connection seat 6 and transitional connection pipe 8 is respectively equipped with groups of fins 5。

During this utility model assembling; first round steel pipe 10 is connected with air chamber base 3; the external screw thread 11 of round steel pipe 10 and the female thread tight seal of air chamber base 3 inner arm lower end; then sensor 2 is placed in air chamber base 3; the target bar 4 of sensor 2 runs through circular steel plate and connected corrugated tube 15; by position welding corresponding with target bar 4 for the soldering opening 9 on corrugated tube 15; bolt or bolt being screwed in and regulating gap between target bar 4 and screw in two concentric fixing holes 13 on round steel pipe 10 is 2-3mm, and the overload protection that is arranged to of fixing hole 13 regulates。Connect and between seat 6 and target bar 4, define a sealing space, having isolated medium and entered air chamber base 3 inside, having contacted with sensor 2 thus having isolated measurement medium。

When the target bar 4 of sensor 2 is by fluid media (medium) thrust, corrugated tube 15 can along with institute's stress Free Compression and extension。Thus isolated temperature, impurity, nor affecting on sensor 2 sensitivity, make effusion meter sensor 2 can the higher environment of Applicable temperature and do not affect certainty of measurement, also ensured sensor 2 stability, reliability simultaneously。And sensor 2 is thoroughly isolated with measuring medium, therefore extends sensor 2 service life。

The length of the groups of fins 5 on transitional connection pipe 8 outer wall is mated with the outer wall of external transitional connection pipe 8, and the groups of fins 5 outside described connection seat 6 is positioned at the middle part connecting seat 6；The setting of groups of fins 5, has reached purpose is better thermally isolated, in order to it is wider that effusion meter is suitable for, and the precision of metering is higher, and stability is better。

The length of described round steel pipe 10 is more than or equal to the length connecting seat 6, described corrugated tube 15 is placed in measurement pipe 7, when round steel pipe 10 length less than connect seat 6 length time, corrugated tube 15 is placed in connection seat 6, corrugated tube 15 is easily accessible medium with the space being connected between seat 6, sealing effectiveness is bad, connects and easily occurs stifled, card phenomenon in seat 6, causes measuring and measuring accuracy is not high。

Precise laser is adopted to be weldingly connected between connection ring 14 on described boss annulus 12 and corrugated tube 15。

Described connection seat 6 is made up of 304 stainless steel materials, high temperature resistant, good processability, and toughness is high。

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included in protection domain of the present utility model。

Claims (6)

1. a superhigh temperature effusion meter with defencive function; including measuring pipe and connected integrating instrument; described measurement is connected by the connection seat being sequentially connected with from top to bottom, air chamber base, transitional connection pipe between pipe and integrating instrument; it is provided with sensor in described air chamber base; it is characterized in that: also include the protection structure being connected with air chamber base; described protection structure includes a round steel pipe; one end processing of shown round steel pipe has and the external screw thread of the screw-internal thread fit in air chamber base, and the other end is integrally formed with boss annulus；Described boss annulus is connected with corrugated tube away from one end of round steel pipe, one end that described corrugated tube is connected with boss annulus is provided with connection annulus, the other end is provided with the outer wall of the soldering opening that the target bar with sensor welds, described connection seat and transitional connection pipe and is respectively equipped with groups of fins。

2. the superhigh temperature effusion meter with defencive function according to claim 1, it is characterised in that: the sidewall of described round steel pipe has two concentric fixing holes。

3. the superhigh temperature effusion meter with defencive function according to claim 1 and 2, it is characterised in that: the length of described round steel pipe is more than or equal to the length connecting seat。

4. the superhigh temperature effusion meter with defencive function according to claim 3, it is characterised in that: described corrugated tube is placed in measurement pipe。

5. the superhigh temperature effusion meter with defencive function according to claim 4, it is characterised in that: described boss annulus connects with the connection boxing on corrugated tube。

6. the superhigh temperature effusion meter with defencive function according to claim 5, it is characterised in that: described connection seat is made up of 304 stainless steel materials。