CN219870855U - Liquid densimeter - Google Patents
Liquid densimeter Download PDFInfo
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- CN219870855U CN219870855U CN202321620192.7U CN202321620192U CN219870855U CN 219870855 U CN219870855 U CN 219870855U CN 202321620192 U CN202321620192 U CN 202321620192U CN 219870855 U CN219870855 U CN 219870855U
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- liquid
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- weighing
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- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000005303 weighing Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001739 density measurement Methods 0.000 abstract description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a liquid densimeter, which relates to the technical field of density measurement, and comprises a cup body for containing liquid to be measured, a weighing assembly for weighing the liquid, and a pressure regulating mechanism for changing the pressure of the liquid to be measured, wherein the pressure regulating mechanism comprises: the fixed cover is arranged on the cup body; the sealing cover is arranged in the cup body in a sliding way; the driving piece drives the sealing cover to slide; and the measuring assembly is arranged on the fixed cover and is used for detecting the pressure and the volume of the liquid. According to the utility model, the cup body is weighed for the first time through the weighing component, the liquid to be measured is input into the cup body through the material conveying component, the pressure regulating component regulates the pressure of the liquid to be measured in the cup body, the weighing component weighs the cup body after the pressure regulation is completed, the weight of the liquid to be measured is obtained by subtracting the first weighing result from the weighing result, the volume of the liquid to be measured after the pressure regulation is calculated, and the density of the liquid to be measured under the specified pressure is calculated according to the expression that p=m/v, so that the liquid density under different pressures can be measured conveniently.
Description
Technical Field
The utility model relates to the technical field of density measurement, in particular to a liquid densimeter.
Background
The mass of the medium per unit volume is the density of the medium at a certain temperature and pressure. The expression is p=m/v. When the volume v is constant, the density p is proportional to the mass m.
The existing instrument for detecting the liquid density in the market comprises a YMS digital display type liquid densimeter, the instrument comprises an electronic densimeter and an electronic balance, a certain volume of liquid to be detected is filled in a sample cup, the volume is measured by a sensor through a medium, and then the density of the medium can be obtained through calculation of a single chip microcomputer.
However, the sample cup body of the device can only be used for measuring the liquid density under normal pressure, and is inconvenient for measuring the liquid density under different pressures.
Disclosure of Invention
In order to facilitate measuring the density of a liquid at different pressures, the present utility model provides a liquid densitometer.
The utility model provides a liquid densimeter, which adopts the following technical scheme:
a liquid densitometer, includes the cup that is used for holding the liquid that awaits measuring, is used for weighing the subassembly of weighing of liquid, sets up on the cup and is used for changing the pressure regulating mechanism of liquid pressure that awaits measuring, pressure regulating mechanism includes:
the fixed cover is arranged on the cup body;
the sealing cover is arranged in the cup body in a sliding way along the axis of the cup body;
the driving piece is arranged on the fixed cover and used for driving the sealing cover to slide;
and the measuring assembly is arranged on the fixed cover and is used for detecting the pressure and the volume of the liquid.
Through adopting above-mentioned technical scheme, put into the cup with the liquid that awaits measuring, the sealed lid of driving piece drive slides downwards along the cup axis, increases the liquid pressure in the cup, measures liquid pressure and volume through measuring assembly, places the cup and carries out the quality determination on weighing assembly to be convenient for measure the liquid density under the different pressures.
Further, the driving piece is an electric telescopic rod, and the electric telescopic rod is arranged on the fixed cover and the piston rod is connected with the sealing cover.
Through adopting above-mentioned technical scheme, electric telescopic handle starts and drives sealed lid and slide downwards along the cup axis, increases the liquid pressure in the cup.
Further, the measurement assembly includes:
the pressure sensor is arranged on the sealing cover and is used for measuring the pressure of the liquid to be measured;
and the controller is arranged on the cup body, is electrically connected with the pressure sensor and the driving piece and is used for displaying the moving distance of the sealing cover.
Through adopting above-mentioned technical scheme, pressure sensor measures the liquid pressure in the cup, closes the driving piece through the controller when the liquid pressure of pressure sensor survey reaches the setting value, and the sealed lid travel distance of controller demonstration simultaneously is convenient for adjust the pressure of the liquid that awaits measuring to the setting value, also can obtain the size of volume after the pressure changes simultaneously to can obtain the liquid density of different pressure sizes.
Further, the weighing assembly includes:
the electronic balance is placed on the tabletop and used for weighing;
and the fixing plate is arranged on the electronic balance and used for placing the cup body.
Through adopting above-mentioned technical scheme, the cup is placed on the fixed plate, and electronic balance is used for weighing the liquid that awaits measuring, is convenient for measure the quality of liquid that awaits measuring.
Further, the bottom of the cup body is provided with a boss in the shape of a circular truncated cone, the fixing plate is provided with a groove, and the boss is matched with the groove in a clamping way.
Through adopting above-mentioned technical scheme, boss and recess joint cooperation of cup bottom for with the fixed central point who places the board of cup put, be convenient for improve measurement accuracy.
Further, be provided with the material subassembly on the cup, the material subassembly includes:
the pan feeding pipe, the pan feeding pipe sets up on the cup and is used for adding the distance with the liquid that awaits measuring and connects, name or signature: putting the cup body into the cup body;
the one-way valve is arranged on the feeding pipe and is only used for discharging liquid to be tested into the cup body;
the exhaust pipe is arranged on the sealing cover and is used for exhausting gas into the cup body;
and the control valve is arranged on the exhaust pipe and used for controlling the switch of the exhaust pipe.
Through adopting above-mentioned technical scheme, when wanting the cup to add the liquid that awaits measuring in, the liquid that awaits measuring is added the cup through the pan feeding pipe in, and the check valve is used for only supplying the liquid that awaits measuring to discharge into the cup, and the control valve is opened simultaneously, and the air that is located the cup top discharges the cup through the blast pipe, closes the control valve when the liquid that awaits measuring flows in from the blast pipe, simultaneously with the blast pipe in and lie in the liquid on the control valve clear to clean to this reduces the influence of air to measurement accuracy.
Further, a temperature sensor is arranged on the cup body and is used for measuring the temperature in the cup body.
Through adopting above-mentioned technical scheme, temperature sensor is used for measuring the temperature in the cup to this guarantees that the temperature in the liquid is stable, is convenient for improve measurement accuracy.
Further, a sealing ring is arranged on the sealing cover.
Through adopting above-mentioned technical scheme, through setting up the sealing washer so on the sealing lid, improve the sealed effect of sealed lid, be convenient for improve measurement accuracy.
In summary, the utility model has the following beneficial technical effects:
the cup body is weighed for the first time through the weighing assembly, liquid to be measured is input into the cup body through the material conveying assembly, the pressure of the liquid to be measured in the cup body is regulated through the pressure regulating assembly, the cup body after the pressure regulation is weighed for the second time through the weighing assembly, the volume of the liquid to be measured is obtained according to the volume of the cup body after the pressure regulation is subtracted by the volume changing during the pressure regulation, the mass of the liquid to be measured is obtained according to the result of the second weighing subtracted by the result of the first weighing, and the density of the liquid to be measured under the specified pressure is calculated according to the expression of p=m/v.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model, mainly showing the cup and the feeding assembly;
fig. 3 is a schematic structural view of the present utility model, mainly showing a weighing assembly.
Reference numerals: 1. a cup body; 11. a boss; 12. a seal ring; 2. a pressure regulating mechanism; 21. a fixed cover; 22. sealing cover; 23. an electric telescopic rod; 24. a measurement assembly; 241. a pressure sensor; 242. a controller; 3. a material conveying component; 31. a feeding pipe; 32. a one-way valve; 33. an exhaust pipe; 34. a control valve; 4. a weighing assembly; 41. an electronic balance; 42. a fixing plate; 43. a groove; 5. a temperature sensor.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a liquid densimeter.
Referring to fig. 1, a liquid densitometer includes a cup 1 in a vertical state for holding a liquid to be measured, a weighing assembly 4 for weighing the liquid, and a pressure regulating mechanism 2 provided on the cup 1 for changing the pressure of the liquid to be measured.
Referring to fig. 2 and 3, the weighing assembly 4 includes an electronic balance 41 and a fixing plate 42, the electronic balance 41 is placed on a table top and used for weighing, the fixing plate 42 is fixedly installed on the electronic balance 41, a circular truncated cone-shaped groove 43 is formed in the center of the fixing plate 42, and the diameter of the top end of the groove 43 is larger than that of the bottom end; the bottom of the cup body 1 is fixedly provided with a boss 11 with a truncated cone shape, and the boss 11 is matched with the groove 43 in a clamping way.
Referring to fig. 1 and 2, the pressure regulating mechanism 2 includes a fixed cover 21, a sealing cover 22, a driving member and a measuring assembly 24, a plurality of vertical mounting posts are fixedly mounted on the upper surface of the cup body 1 at intervals, and the fixed cover 21 is fixedly mounted on top ends of the plurality of mounting posts; the sealing cover 22 is arranged on the inner side wall of the cup body 1 in a sliding manner along the vertical direction, and a sealing ring 12 for improving the sealing effect is fixedly arranged on the sealing cover 22 and at the abutting part with the cup body 1; the driving piece is electric telescopic rod 23, and electric telescopic rod 23 fixed mounting is on fixed lid 21 lower surface, and electric telescopic rod 23's piston rod is vertical downwards and fixed mounting is on sealed lid 22 upper surface, and electric telescopic rod 23's flexible direction and cup 1 axis direction coincidence, and measuring assembly 24 sets up on cup 1 and is used for detecting the pressure and the volume of liquid that awaits measuring.
Referring to fig. 1 and 2, the measuring assembly 24 includes a pressure sensor 241 fixedly installed on the upper surface of the sealing cover 22, the pressure sensor 241 penetrating through the sealing cover 22 to be in contact with the liquid to be measured in the cup body 1, the pressure sensor 241 for measuring the liquid pressure of the liquid to be measured in the cup body 1, and a controller 242 fixedly installed on the sidewall of the cup body 1, the controller 242 being electrically connected with the pressure sensor 241 and the driving member, the controller 242 displaying the moving distance of the sealing cover 22 according to the telescopic distance of the electric telescopic rod 23.
Referring to fig. 1 and 2, a moving reduced volume can be obtained according to the displayed distance and the sectional area of the sealing cover 22, and then the volume of the moved liquid can be obtained by subtracting the reduced volume from the initial volume in the cup body 1, i.e., the volume in the cup body at normal pressure; the upper surface of the sealing cover 22 is fixedly provided with a temperature sensor 5, the temperature sensor 5 passes through the sealing cover 22 to be in contact with the liquid to be measured in the cup body 1, and the temperature sensor 5 is used for detecting the temperature in the cup body 1, so that the temperature stability of the liquid to be measured is ensured, and the measurement accuracy is improved.
Referring to fig. 1 and 2, a material conveying assembly 3 for conveying liquid to be measured into a cup body 1 is arranged on the cup body 1, the material conveying assembly 3 comprises a material feeding pipe 31, a one-way valve 32, an exhaust pipe 33 and a control valve 34, the material feeding pipe 31 is fixedly arranged on the side wall of the cup body 1, the material feeding pipe 31 is positioned at one side close to the bottom of the cup body 1 and is communicated with the interior of the cup body 1, and the material feeding pipe 31 is used for conveying the liquid to be measured into the cup body 1; the check valve 32 is fixedly arranged on the feeding pipe 31, and the check valve 32 is used for only inputting liquid to be tested into the cup body 1 from the feeding pipe 31; an exhaust pipe 33 is fixedly installed on the upper surface of the sealing cover 22 and is communicated with the inside of the cup body 1, the exhaust pipe 33 is used for exhausting the gas in the cup body 1 out of the cup body 1, and a control valve 34 is arranged on the exhaust pipe 33 and is used for controlling the opening and closing of the exhaust pipe 33.
Referring to fig. 1 and 2, when the liquid to be measured is input into the cup body 1, the exhaust pipe 33 is opened at the same time, the liquid to be measured is input into the cup body 1 through the feed pipe 31 and the check valve 32, redundant gas in the cup body 1 is discharged out of the cup body 1 through the exhaust pipe 33, when the liquid to be measured starts to flow out of the exhaust pipe 33, the discharge of the liquid to be measured is stopped, then the control valve 34 is closed, and residual liquid in the exhaust pipe 33 and above the control valve 34 is cleaned; meanwhile, when the volume of the cup body 1 at the initial pressure and normal pressure is required to be detected, the liquid to be detected or the standard liquid is introduced by the method, and finally the liquid in the cup body 1 is poured out for detection, so that the volume of the cup body 1 at the initial pressure can be obtained.
The working principle of the embodiment of the utility model is as follows:
placing the cup body 1 on an electronic balance 41 for first weighing to obtain the mass of the empty cup body 1, then taking down the cup body 1, then inputting liquid to be measured into the cup body 1 through a feeding pipe 31, so that gas in the cup body 1 is discharged through an exhaust pipe 33, then cleaning residual liquid outside the cup body 1, and then weighing the cup body 1 again to obtain the density at the initial pressure; then the cup body 1 is taken down, the electric telescopic rod 23 drives the sealing cover 22 to move downwards, after the pressure sensor 241 detects that the pressure of the liquid to be measured reaches the specified pressure, the electric telescopic rod 23 is closed through the controller 242, the controller 242 displays the moving distance of the sealing cover 22, so that the volume of the liquid after moving is obtained, then the cup body 1 is placed on the electronic balance 41 for weighing, the first weighing result is subtracted according to the first weighing result to obtain the mass of the liquid to be measured, and the density of the liquid to be measured under the specified pressure is calculated according to the expression that p=m/v, so that the liquid density under different pressures can be measured conveniently.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A liquid densitometer, characterized by: including cup (1) that is used for holding the liquid that awaits measuring, be used for weighing the weighing module (4) of liquid, set up on cup (1) and be used for changing pressure regulating mechanism (2) of liquid pressure that awaits measuring, pressure regulating mechanism (2) include:
a fixed cover (21), wherein the fixed cover (21) is arranged on the cup body (1);
the sealing cover (22) is arranged in the cup body (1) in a sliding way along the axis of the cup body (1);
the driving piece is arranged on the fixed cover (21) and is used for driving the sealing cover (22) to slide;
and a measuring assembly (24), the measuring assembly (24) being arranged on the fixed cover (21) and being used for detecting the pressure and the volume of the liquid.
2. A liquid densitometer as claimed in claim 1, wherein: the driving piece is an electric telescopic rod (23), the electric telescopic rod (23) is arranged on the fixed cover (21), and the piston rod is connected with the sealing cover (22).
3. A liquid densitometer as claimed in claim 1, wherein: the measurement assembly (24) includes:
a pressure sensor (241), the pressure sensor (241) being arranged on the sealing cover (22) and being used for measuring the pressure of the liquid to be measured;
and a controller (242), wherein the controller (242) is arranged on the cup body (1), is electrically connected with the pressure sensor (241) and the driving piece, and is used for displaying the moving distance of the sealing cover (22).
4. A liquid densitometer according to claim 3, wherein: the weighing assembly (4) comprises:
-an electronic balance (41), said electronic balance (41) being placed on a table top and being used for weighing;
and the fixing plate (42) is arranged on the electronic balance (41) and is used for placing the cup body (1).
5. A liquid densitometer according to claim 4, wherein: the bottom of the cup body (1) is provided with a boss (11) in a round table shape, the fixing plate (42) is provided with a groove (43), and the boss (11) is matched with the groove (43) in a clamping mode.
6. A liquid densitometer as claimed in claim 1, wherein: be provided with material conveying subassembly (3) on cup (1), material conveying subassembly (3) include:
the feeding pipe (31) is arranged on the cup body (1) and is used for adding liquid to be measured into the cup body (1);
the one-way valve (32) is arranged on the feeding pipe (31) and only used for discharging liquid to be tested into the cup body (1);
an exhaust pipe (33), the exhaust pipe (33) being provided on the sealing cover (22) and being used for exhausting gas out of the cup body (1);
and a control valve (34), wherein the control valve (34) is arranged on the exhaust pipe (33) and is used for controlling the opening and closing of the exhaust pipe (33).
7. A liquid densitometer according to claim 5, wherein: the cup body (1) is provided with a temperature sensor (5), and the temperature sensor (5) is used for measuring the temperature in the cup body (1).
8. A liquid densitometer as claimed in claim 1, wherein: the sealing cover (22) is provided with a sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321620192.7U CN219870855U (en) | 2023-06-25 | 2023-06-25 | Liquid densimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321620192.7U CN219870855U (en) | 2023-06-25 | 2023-06-25 | Liquid densimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870855U true CN219870855U (en) | 2023-10-20 |
Family
ID=88368386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321620192.7U Active CN219870855U (en) | 2023-06-25 | 2023-06-25 | Liquid densimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870855U (en) |
-
2023
- 2023-06-25 CN CN202321620192.7U patent/CN219870855U/en active Active
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