CN209264487U - A kind of plug-in type densitometer - Google Patents
A kind of plug-in type densitometer Download PDFInfo
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- CN209264487U CN209264487U CN201822101265.7U CN201822101265U CN209264487U CN 209264487 U CN209264487 U CN 209264487U CN 201822101265 U CN201822101265 U CN 201822101265U CN 209264487 U CN209264487 U CN 209264487U
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- pressure
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- insertion rod
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Abstract
The utility model discloses a kind of plug-in type densitometers, it is related to densitometer field, including insertion rod and the pressure element being fixedly connected in insertion rod, induction room is offered inside pressure element, induction is indoor to be filled with silicone oil, incude room opening setting, and is fixedly connected with undulatory pressure-sensitive diaphragm, pressure-sensitive diaphragm sealing induction room；Flow regulator pieces are removably connected on pressure element, it is opened on flow regulator pieces through the throttling through slot for offering small pore-like, throttle chamber is formed between flow regulator pieces and pressure-sensitive diaphragm, transition cover is fixedly connected in throttle chamber, transition chamber is formed through the transition through slot for offering coarse pored, transition cover and flow regulator pieces on transition cover.Pressure is transmitted to pressure sensor to obtain pressure information by pressure-sensitive diaphragm by sensing element, testing liquid outside relative to throttle chamber, the indoor testing liquid that throttles is more stable, to reduce influence of the liquid flowing for densimeter measurement value in container tank, improves the accuracy of density measure.
Description
Technical field
The utility model relates to densitometer fields, more particularly, to a kind of plug-in type densitometer.
Background technique
Densitometer is the instrument for measuring fluid density, and the static pressure of certain altitude fluid column and the density of the liquid are at just
Than, therefore the density of testing liquid can be measured according to the static pressure numerical value that pressure measuring instruments is measured.Commonly used in densitometer meeting
Comprising an insertion rod, insertion rod is opened up up and down there are two tapered hole, is respectively plugged with a pressure measuring element in tapered hole, is pressed
Power measuring cell is wholely set coniform grafting pin, and grafting pin is plugged in tapered hole.When degree measurement fluid column is close, pressure-sensitive
Element is inserted into testing liquid together with insertion rod, and the direct contact measured liquid of pressure element obtains pressure signal, and will
Pressure signal is transferred on pressure transmitter, according to the pressure value measured, utilizes formula ρ=P/(hg of pressure and density) it calculates
Obtain the density of testing liquid, wherein P is pressure, and h is the vertical coordinate distance between two pressure elements, and g is gravity acceleration
Degree.
Above-mentioned densitometer has a problem that in reality production, testing liquid is often stored in the container tank with disturbance
In, it needs to hold the insertion rod insertion of densitometer when staff needs and measures density to the testing liquid in these container tanks
In device tank, after in insertion rod insertion container tank, testing liquid can generate flowing, and this slight flowing is for pressure element
Measurement work has a certain impact, so that the pressure value measured fluctuates, to generate error, influences final densities value
Accuracy.
Utility model content
In view of the above problems, the object of the present invention is to provide a kind of plug-in type densitometers, hold with precise measurement
The effect of testing liquid density in device tank.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of plug-in type densitometer, including insertion rod are fixedly connected with 1 or more pressure element in the insertion rod,
Induction room is offered inside the pressure element, the induction is indoor to be filled with pressure transmissive fluid, and the induction room is fixed to be connected
It is connected to pressure-sensitive diaphragm and the pressure-sensitive diaphragm seals the induction room；
It is removably connected with flow regulator pieces on the pressure element, is opened on the flow regulator pieces through the throttling for offering small pore-like
Through slot forms throttle chamber between the flow regulator pieces and the pressure-sensitive diaphragm, transition cover is fixedly connected on the flow regulator pieces, described
Transition chamber, the throttling are formed through the transition through slot for offering coarse pored, the transition cover and the flow regulator pieces on transition cover
Through slot is connected to the throttle chamber and the transition chamber, and the transition through slot is connected to the transition chamber and container tank inner space.
By using above-mentioned technical proposal, sensing element obtains pressure letter by the pressure difference of pressure-sensitive diaphragm two sides liquid
Breath, when the liquid flowing outside transition cover, transition cover carries out first layer barrier effect first, reduces testing liquid and enters transition
Room, and slow down the flow velocity into the testing liquid of transition chamber, the testing liquid of deceleration enters throttle chamber by the through slot that throttles, and throttles
Indoor pressure size is identical as the pressure size outside throttle chamber, but relative to throttle chamber outside testing liquid, throttle it is indoor
Testing liquid is more stable, is not easy the influence of receptor pot liquid flowing, flows to reduce liquid in container tank for close
The influence of degree measurement magnitude, improves the accuracy of density measure.
Further: projection of the transition through slot on the pressure-sensitive diaphragm and the throttling through slot are in the pressure sensitive film
The projection of on piece is interlaced.
By using above-mentioned technical proposal, the testing liquid for avoiding enter into transition chamber is directly entered in throttle chamber, enhancing section
The degree of stability of liquid in flow.
Further: one end of the insertion rod is fixedly connected with ring flange, the one side of the ring flange contact container tank
It is fixedly connected with T-flange.
By using above-mentioned technical proposal, ring flange can be bolted by staff when carrying out density measure
In the outlet of container tank, the unstable error for making pressure measurement of densitometer is avoided to increase, ring flange contacts the face of container tank
T-flange is provided between container can guarantee that densitometer is placed in the leakproofness in container tank, thus reduce to pressure value and
The influence of density value measurement.
Further: the throttle chamber runs through to offer to flow with side of the transition chamber far from the ring flange and lead to
Slot；
The flowing through slot being provided in the throttle chamber is connected to the throttle chamber and container tank inner space, is provided with
Flowing through slot on the transition chamber is connected to the transition chamber and container tank inner space
By using above-mentioned technical proposal, when insertion rod is inserted into testing liquid by staff, it is mounted on insertion
Side elder generation contact measured liquid of the pressure element far from ring flange on bar, therefore when staff send insertion rod downwards, to
Liquid is surveyed to be pressed into throttle chamber and transition chamber from flowing through slot first, by throttle chamber and the indoor air of transition from throttle chamber and
It is extruded in flowing through slot on transition chamber, avoids thering is gas not to be discharged in throttle chamber and transition chamber, influence pressure value and density value
Measurement accuracy.
Further: the pressure element directly contacts the insertion rod, and the pressure element contacts the insertion rod
Open up on one side fluted, the inner wall of the groove is bonded the outer wall of the insertion rod.
By using above-mentioned technical proposal, pressure element is directly fixedly connected in insertion rod, pressure element is shortened
The distance between insertion rod, setting is fluted to further reduce pressure element and the outer diameter of insertion rod entirety, avoids working as
When testing liquid is in the lesser container tank of opening inside diameter, the insertion rod for being equipped with pressure element can not be inserted by densitometer
In container tank, so that the container tank specification that densitometer can be adapted to is more extensive.
Further: the induction room is communicated with capillary, and the capillary is connected to pressure transmitter, the capillary with
The indoor stuffing pressure liquid of the induction；
The part that the insertion rod contacts the pressure element offers poling through-hole, opens up inside the insertion rod free
Chamber, the capillary enter the internal cavities of the insertion rod by the poling through-hole.
By using above-mentioned technical proposal, so that the inside for being transmitted in insertion rod of pressure information is completed, completely cut off external
The influence of environment, so that the result of pressure measurement is more accurate, to obtain more accurately density value.
It is further: step to be offered in the transition cover, the flow regulator pieces are fixedly connected on the transition cover, described
Flow regulator pieces and the transition cover are all made of stainless steel and are made.
Through the above technical solutions, the ability for absorbing impact flow regulator pieces and transition cover enhances.
Further: the open edge of the transition cover is threaded on the outer wall of the pressure element.
By using above-mentioned technical proposal, realizes and be detachably connected between transition cover and pressure element, terminated in measurement
After can remove transition cover, thus more comprehensively to pressure element carry out cleaning work, extend the service life of densitometer.
In conclusion the advantageous effects of the utility model include:
(1) pressure information is obtained by enabling sensing element pass through the pressure difference of pressure-sensitive diaphragm two sides liquid, when transition cover
When outer liquid flows, transition cover carries out first layer barrier effect first, reduces testing liquid and enters transition chamber, and slows down entrance
The testing liquid of the flow velocity of the testing liquid of transition chamber, deceleration enters throttle chamber by the through slot that throttles, and the indoor pressure that throttles is big
It is small identical as pressure size outside throttle chamber, but relative to throttle chamber outside testing liquid, throttle indoor testing liquid more
Stablize, be not easy the influence of receptor pot liquid flowing, flows to reduce liquid in container tank for densimeter measurement value
It influences, improves the accuracy of density measure；
(2) by that will throttle through slot and transition through slot is staggered, the testing liquid for avoiding enter into transition chamber is directly entered
In throttle chamber, enhance the degree of stability of liquid in flow regulator pieces.
Detailed description of the invention
Fig. 1 is the cross-sectional view that the utility model embodiment one shows throttling cover；
Fig. 2 is the enlarged diagram of part A in Fig. 1；
Fig. 3 is the schematic diagram that the utility model embodiment one shows groove；
Fig. 4 is the schematic diagram that the utility model embodiment one shows T-flange；
Appended drawing reference: 1, insertion rod；2, poling through-hole；3, pressure element；4, groove；5, incude room；6, pressure-sensitive diaphragm；7,
Capillary；8, flow regulator pieces；9, throttle chamber；10, throttle through slot；11, transition cover；12, transition chamber；13, transition through slot；14, flange
Disk；15, T-flange；16, through slot is flowed.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of plug-in type densitometer including the rod-shaped insertion rod 1 of cylinder, opens up inside insertion rod 1 as shown in figures 1 and 3
There is cavity.About 1 insertion rod is opened up there are two poling through-hole 2, and the position for offering poling through-hole 2 is welded with pressure element 3,
Fluted 4 are opened up on pressure element 3, the inner wall of groove 4 is bonded with the outer wall of insertion rod 1.Grafting compared to script is arranged, and goes
Fall pressure element 3 to be welded in insertion rod 1 after grafting pin and shorten the distance between pressure element 3 and insertion rod 1, and is arranged
Fluted 4 further reduce pressure element 3 and the whole outer diameters of insertion rod 1, and being arranged in this way can be to avoid working as testing liquid
When in the lesser container tank of opening inside diameter, the insertion rod 1 for being equipped with pressure element 3 can not be inserted into container tank by densitometer
Interior, the container tank specification that densitometer is adapted to is more extensive.
Induction room 5 is offered inside pressure element 3 as depicted in figs. 1 and 2, the opening setting of induction room 5, induction room 5 is opened
The pressure-sensitive diaphragm 6 of round sheet is fixedly connected on mouth, being open by welding with induction room 5 for pressure-sensitive diaphragm 6 is seamless
Connection, sealing induction room 5.Capillary 7 is also fixedly connected on pressure element 3, capillary 7 is connected to induction room 5, capillary 7
One end of not connected pressure element 3 passes through poling through-hole 2 and enters the internal cavities of insertion rod 1 and be connected to pressure transmitter,
It is filled with pressure transmissive fluid in capillary 7 and induction room 5, pressure transmissive fluid can be silicone oil.When pressure element 3 is immersed
When entering in testing liquid, the side of pressure-sensitive diaphragm 6 is testing liquid, and the other side is pressure transmissive fluid, and the pressure difference of two sides enables
Pressure-sensitive diaphragm 6 generates deformation, and pressure information is transferred to pressure transmitter by the pressure transmissive fluid in capillary 7.It inserts
Pressure inverting can be transmitted to by capillary 7 for the pressure of testing liquid respectively by entering two pressure elements 3 setting up and down of bar 1
Device can obtain the density of testing liquid finally by the pressure difference measured.
3 external screw-thread of pressure element is connected with transition cover 11, and the opening of transition cover 11 is towards pressure-sensitive diaphragm 6, transition cover 11
Inside is fixedly connected with flow regulator pieces 8, and flow regulator pieces 8 are between pressure element 3 and transition cover 11, flow regulator pieces 8 and 6 shape of pressure-sensitive diaphragm
At throttle chamber 9, transition cover 11 and flow regulator pieces 8 form transition chamber 12.Through the throttling through slot for offering circular hole on flow regulator pieces 8
10, through the transition through slot 13 for offering circular hole on face of the transition cover 11 far from flow regulator pieces 8.
Testing liquid in container tank enters in transition chamber 12 from transition through slot 13, then enters section via throttling through slot 10
It is contacted in flow chamber 9 with pressure-sensitive diaphragm 6.When the liquid flowing outside transition cover 11, transition cover 11 carries out first layer first to be stopped to make
With reduction testing liquid enters transition chamber 12, and slows down the flow velocity of the testing liquid into transition chamber 12, so that from transition
The testing liquid speed that room 12 enters throttle chamber 9 is slower, reduces influence of the testing liquid flowing for pressure detecting.
Throttling through slot 10 and projection of the transition through slot 13 on pressure-sensitive diaphragm 6 are interlaced, and the aperture for the through slot 10 that throttles
Size is less than the pore size of transition through slot 13, after the testing liquid in container tank flows through transition through slot 13, Bu Huizhi
It connects again by throttling through slot 10, but will receive the obstruction of flow regulator pieces 8, to improve the stabilization of testing liquid in flow regulator pieces 8
Degree.
Flow regulator pieces 8 and transition cover 11 are made of stainless steel material, so that the energy that flow regulator pieces 8 and transition cover 11 absorb impact
Power enhancing.By the way that transition cover 11 to be threaded on pressure element 3, staff is allowed to remove transition cover 11 to pressure-sensitive
Element 3 carries out more comprehensive cleaning, extends the service life of densitometer.
As shown in Figure 2 and Figure 4, insertion rod 1 is not connected has one end of pressure element 3 to be fixedly connected with discoid ring flange
14, ring flange 14 contact container tank face on be fixedly connected with T-flange 15, ring flange 14 can be passed through bolt by staff
It is fixed in the outlet of container tank, avoids densitometer unstable, cause measurement result impacted, T-flange 15 can be to avoid close
Degree meter leakproofness that is unstable and guaranteeing container tank when being placed in container tank, improves the precision and stability of measurement.
Run through the flowing through slot 16 for offering circular hole on the side of throttle chamber 9 and transition chamber 12 far from ring flange 14,
When staff is inserted into densitometer into container tank, insertion rod 1 is moved downward with pressure element 3, and testing liquid is from flowing
Through slot 16 is pressed into throttle chamber 9 and transition chamber 12, at the same by the air in throttle chamber 9 and transition chamber 12 from throttling 10 He of through slot
It is extruded in transition through slot 13, avoids having undischarged gas in throttle chamber 9 and transition chamber 12, influence the survey of pressure value and density value
Accuracy of measurement.
In conclusion insertion rod 1 is inserted into testing liquid by staff, testing liquid is from flowing through slot 16, transition
Through slot 13 and throttling through slot 10 enter in throttle chamber 9, and densitometer starts to measure the pressure of the testing liquid of different depth at this time,
When the testing liquid in container tank is flowed because of external environment, the resistance for being first subjected to transition cover 11 of pressure element 3 is flowed to
It blocks, the testing liquid speed of part flowing enters in transition chamber 12 after slowing down from transition through slot 13, enters in transition chamber 12
The testing liquid of flowing the obstruction by flow regulator pieces 8, flow velocity slow down again again, enter transition from transition through slot 13 again at this time
The testing liquid flow velocity of room 12 is very slow, and the influence for measurement result can also reduce very much, to reach raising measurement essence
The purpose of degree.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of plug-in type densitometer, including insertion rod (1), 1 or more pressure-sensitive member is fixedly connected on the insertion rod (1)
Part (3), it is characterised in that: offer induction room (5) inside the pressure element (3), be filled with pressure in the induction room (5)
Liquid is transmitted, the induction room (5) is fixedly connected with pressure-sensitive diaphragm (6) and the pressure-sensitive diaphragm (6) seals the induction room
(5)；
It is removably connected with flow regulator pieces (8), opens on the flow regulator pieces (8) through offering small pore-like on the pressure element (3)
Throttling through slot (10), between the flow regulator pieces (8) and the pressure-sensitive diaphragm (6) formed throttle chamber (9), the flow regulator pieces (8)
On be fixedly connected with transition cover (11), through offering the transition through slot (13) of coarse pored, the mistake on the transition cover (11)
Cross cover (11) and the flow regulator pieces (8) and form transition chamber (12), throttling through slot (10) connection throttle chamber (9) with it is described
Transition chamber (12), the transition through slot (13) are connected to the transition chamber (12) and container tank inner space.
2. plug-in type densitometer according to claim 1, it is characterised in that: the transition through slot (13) is in the pressure sensitive film
Projection and projection of throttling through slot (10) on the pressure-sensitive diaphragm (6) on piece (6) is interlaced.
3. plug-in type densitometer according to claim 1, it is characterised in that: one end of the insertion rod (1) is fixedly connected
Have ring flange (14), ring flange (14) the contact container tank is fixedly connected with T-flange (15) on one side.
4. plug-in type densitometer according to claim 3, it is characterised in that: the throttle chamber (9) and the transition chamber
(12) side far from the ring flange (14), which is run through, offers flowing through slot (16)；
The flowing through slot (16) being provided on the throttle chamber (9) is connected to the throttle chamber (9) and container tank inner space,
The flowing through slot (16) being provided on the transition chamber (12) is connected to the transition chamber (12) and container tank inner space.
5. plug-in type densitometer according to claim 1, it is characterised in that: described in the pressure element (3) directly contacts
Insertion rod (1), the pressure element (3) contact opening up on one side fluted (4) for the insertion rod (1), the groove (4) it is interior
Wall is bonded the outer wall of the insertion rod (1).
6. plug-in type densitometer according to claim 1, it is characterised in that: the induction room (5) is communicated with capillary
(7), the capillary (7) is connected to pressure transmitter, equal stuffing pressure liquid in the capillary (7) and the induction room (5)；
The part that the insertion rod (1) contacts the pressure element (3) offers poling through-hole (2), and the insertion rod (1) is internal
Cavity is offered, the capillary (7) enters the internal cavities of the insertion rod (1) by the poling through-hole (2).
7. plug-in type densitometer according to claim 2, it is characterised in that: step is offered in the transition cover (11),
The flow regulator pieces (8) are fixedly connected on the transition cover (11), and the flow regulator pieces (8) and the transition cover (11) are all made of not
Rust steel is made.
8. plug-in type densitometer according to claim 2, it is characterised in that: the open edge screw thread of the transition cover (11)
It is connected on the outer wall of the pressure element (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101265.7U CN209264487U (en) | 2018-12-14 | 2018-12-14 | A kind of plug-in type densitometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101265.7U CN209264487U (en) | 2018-12-14 | 2018-12-14 | A kind of plug-in type densitometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264487U true CN209264487U (en) | 2019-08-16 |
Family
ID=67563645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822101265.7U Active CN209264487U (en) | 2018-12-14 | 2018-12-14 | A kind of plug-in type densitometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209264487U (en) |
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2018
- 2018-12-14 CN CN201822101265.7U patent/CN209264487U/en active Active
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