CN215491961U - Liquid level measuring device - Google Patents
Liquid level measuring device Download PDFInfo
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- CN215491961U CN215491961U CN202121109895.4U CN202121109895U CN215491961U CN 215491961 U CN215491961 U CN 215491961U CN 202121109895 U CN202121109895 U CN 202121109895U CN 215491961 U CN215491961 U CN 215491961U
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Abstract
The utility model discloses a liquid level measuring device, wherein a water inlet matched with a water pipe of a device to be measured is formed in the side wall of a barrel of the liquid level measuring device, a cavity communicated with the water inlet is formed in the barrel, and an opening communicated with the cavity is formed in one end of the barrel. The probe through opening is arranged in the cavity; the energy conversion piece is arranged at one end of the probe close to the opening, a pulse transmitting submodule and a pulse receiving submodule are arranged in the energy conversion piece, the pulse transmitting submodule is connected with the probe, the pulse transmitting submodule sends pulse waves to the liquid level to be measured through the probe, the pulse receiving submodule is connected with the probe, and the probe transmits echoes formed on the liquid level to the pulse receiving submodule. The utility model can avoid the problems of inaccurate liquid level measurement and the like caused by using a differential pressure type liquid level measuring device in the prior art and ensure the measurement precision.
Description
Technical Field
The utility model relates to the field of liquid level sensors, in particular to a liquid level measuring device.
Background
At present, generally, the operating condition in the low pressure heater is monitored by adopting a differential pressure type liquid level measuring device, the differential pressure type liquid level measuring device needs to establish differential pressure with the low pressure heater in the measuring process, if leakage or working condition change slightly occurs when a system is abnormal, the differential pressure of the differential pressure type liquid level measuring device is damaged, so that sample water cannot be taken, and the problems of inaccurate liquid level measurement and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a liquid level measuring device, and aims to solve the problems that in the prior art, a differential pressure type liquid level measuring device is inaccurate in liquid level measurement and the like.
In order to achieve the purpose, the liquid level measuring device provided by the utility model comprises a barrel, wherein a water inlet matched with a water pipe of a device to be measured is formed in the side wall of the barrel, a cavity communicated with the water inlet is formed in the barrel, and an opening communicated with the cavity is formed in one end of the barrel;
a probe disposed within the cavity through the opening;
the energy conversion piece, the energy conversion piece sets up the nearly opening one end department of probe, be equipped with the pulse module in the energy conversion piece, the pulse module includes pulse emission submodule piece and pulse receiving submodule piece, the pulse emission submodule piece with the probe is connected, the pulse emission submodule piece passes through the probe sends pulse wave to being surveyed the liquid level, the pulse receiving submodule piece with the probe is connected, the probe will be in the echo conveying that is surveyed the liquid level and forms to the pulse receiving submodule piece.
Preferably, the pulse module is further provided with a pulse conversion submodule, one end of the pulse conversion submodule is connected with the pulse receiving submodule, and the pulse conversion submodule is used for converting the echo into a digital signal.
Preferably, the liquid level measuring device further comprises an instrument, and the instrument is connected with the other end of the pulse conversion submodule and is used for visually displaying the digital signal.
Preferably, the instrument comprises a current display module and a current receiving module, one end of the current receiving module is connected with the other end of the pulse conversion submodule and used for receiving the digital signal, and the current display module is connected with the other end of the current receiving module and used for visually displaying the digital signal.
Preferably, the probe includes guided wave pole and cable, guided wave pole one end is connected with the transducing piece, the guided wave pole other end runs through the setting in the cavity, pulse emission submodule piece and pulse receiving submodule piece all pass through the cable with guided wave pole is connected, pulse emission submodule piece passes through guided wave pole sends the pulse wave to being surveyed the liquid level, guided wave pole will echo conveying to pulse receiving submodule piece.
Preferably, the probe also comprises a hollow guard bar column, the guard bar column is sleeved outside the wave guide bar, and a plurality of through holes are formed in the guard bar column.
Preferably, the water inlet comprises a first inlet and a second inlet which are sequentially arranged along the direction from the opening to the bottom of the cylinder, and the vertical distance between the first inlet and the second inlet is 1100 mm.
Preferably, the liquid level measuring device further comprises a cylinder cover, the cylinder cover is covered on the opening of the cylinder body, and a connecting hole for the guard bar column to penetrate through is formed in the middle of the cylinder cover.
Preferably, the liquid level measuring device further comprises an adjustable nut, an external thread matched with the adjustable nut is arranged on the outer side face of the guard bar column, and the adjustable nut is arranged between the cylinder cover and the energy conversion piece.
Preferably, the liquid level measuring device further comprises a battery, and the battery is installed in the energy conversion piece and connected with the pulse transmitting submodule.
In the technical scheme of the utility model, the probe through opening is arranged in the cavity of the cylinder, and the energy conversion piece is arranged outside the cylinder and connected with one end of the probe close to the opening. The pulse transmitting submodule and the pulse receiving submodule are connected with the probe, the pulse transmitting submodule is used for generating pulse waves, the pulse waves are sent to the liquid level to be detected through the probe, the pulse waves are reflected at the liquid level to be detected to form echo waves, and the probe transmits the echo waves to the pulse receiving submodule. During operation, a water pipe of the device to be tested is connected with the water inlet to enable the medium to be tested to flow into the cavity, the pulse module is started, the pulse emission submodule emits pulse waves, and the pulse waves are sent into the cavity through the probe. Because the pulse wave signal generates different reflected waves under different media, when the pulse wave reaches the liquid surface to be detected, the pulse wave is reflected to generate an echo, and the echo is transmitted to the probe and then transmitted to the pulse receiving submodule through the probe. The liquid level measuring device avoids the condition that a differential pressure type device in the prior art can accurately monitor the working condition under the condition of keeping negative pressure, and improves the measuring precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a liquid level measuring device according to the present invention;
FIG. 2 is a schematic view of an installation structure of another embodiment of the liquid level measuring device of the present invention;
FIG. 3 is a schematic view of the operation of another embodiment of the liquid level measuring device of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
2 | |
| 3 | |
4 | Opening of the |
| 5 | |
6 | |
| 7 | Measured |
8 | Instrument and |
| 9 | |
10 | |
| 11 | |
12 | |
| 13 | Adjustable nut |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions related to "" second, "" the like in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "a" or "a second" can explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a liquid level measuring device.
Referring to fig. 1, in an embodiment of the present invention, the liquid level measuring device includes a barrel 1, a water inlet 2 matched with a water pipe of a device to be measured is formed on a side wall of the barrel 1, a cavity 3 communicated with the water inlet 2 is formed in the barrel 1, and an opening 4 communicated with the cavity 3 is formed at one end of the barrel 1;
a probe 5, said probe 5 being disposed within said cavity 3 through said opening 4;
In the first embodiment, as shown in fig. 1, the energy conversion member 6 is located above the cylinder 1, the upper end of the cylinder 1 is provided with an opening 4, the cylinder 1 is internally provided with a cavity 3 with an open upper end, the side wall of the cylinder 1 is provided with a water inlet 2 matched with a water pipe of a device to be tested for introducing a medium to be tested, the upper end of the probe 5 is fixedly connected with the lower end of the energy conversion member 6, and the lower end of the probe 5 penetrates through the opening 4 and is located in the cavity 3. The energy conversion piece 6 is internally provided with a pulse module, and a power supply is connected with the pulse module and used for supplying power. In other embodiments, the liquid level measuring device further comprises a battery, which is mounted in the transducer 6 and connected with the pulse transmitting submodule. In other embodiments, the power source may also be another power source disposed external to the transducer 6, which is powered by electrical connection to the pulse module. The pulse module comprises a pulse transmitting submodule and a pulse receiving submodule, wherein the pulse transmitting submodule and the pulse receiving submodule are both connected with the upper end of a probe 5, the lower end of the probe 5 enters the lower part of a measured liquid level 7, the working principle of the liquid level measuring device is shown in figure 3, when the liquid level measuring device is started, a high-frequency signal transmitting unit in the pulse transmitting submodule starts to work, a generated pulse wave signal is sent to the probe 5 through an output end, the pulse wave is transmitted downwards along the probe 5, different reflected waves can be generated due to the fact that the pulse wave signal is in different media, when the pulse wave is transmitted to the measured liquid level 7, an echo can be generated through reflection, the echo can be transmitted to the probe 5 and is transmitted upwards to the input end of the pulse receiving submodule through the probe 5, and an echo retrieving unit in the pulse receiving submodule retrieves and analyzes the input echo. In other embodiments, the liquid level measuring device further comprises a central processing unit, the pulse transmitting submodule and the pulse receiving submodule are both connected with the central processing unit, the output end of the pulse receiving submodule feeds back the received echo signal to the central processing unit, and the central processing unit obtains the height of the measured medium according to the sent pulse wave signal and the received echo signal. During operation, a water pipe of a device to be measured is connected with a water inlet 2 of the liquid level measuring device, a medium to be measured is introduced into the cavity 3, the device is started, the output end of the pulse emission submodule emits pulse waves, and the pulse waves are downwards transmitted to the medium in the cavity 3 through the probe 5. The pulse wave generates echo waves on the inner wall of the cavity 3 and the measured medium, the echo waves are transmitted to the input end of the pulse receiving submodule through the probe 5 and then fed back to the central processing unit, and the central processing unit obtains the height of the measured medium according to the pulse wave and the echo signals. The working process of the liquid level measuring device does not involve a negative pressure environment, a differential pressure does not need to be established when the device monitors the working condition, the situation that in the prior art, when the system leaks slightly or the working condition changes, the differential pressure type device cannot obtain sample water, so that liquid level measurement is inaccurate, and the liquid level measuring device greatly improves the measuring precision.
In other embodiments, the pulse module is further provided with a pulse conversion sub-module, one end of the pulse conversion sub-module is connected with the pulse receiving sub-module, and the pulse conversion sub-module is used for converting the echo into a digital signal.
In other embodiments, the pulse module is further provided with a pulse conversion sub-module, one end of the pulse conversion sub-module is connected with the output end of the pulse receiving sub-module, as shown in fig. 3, the echo is transmitted to the pulse conversion sub-module through the pulse receiving sub-module, and the signal processing conversion unit in the pulse conversion sub-module converts the echo into a digital signal. In other embodiments, the other end of the pulse conversion submodule can be connected with the central processing unit, and the digital signal is fed back to the central processing unit. The liquid level measuring device converts wave signals into digital signals, so that the operation condition of the connection working condition can be more intuitive for users, and the accuracy of the measured data is improved by digital information.
Referring to fig. 2, in other embodiments, the liquid level measuring apparatus further includes a meter 8, and the meter 8 is connected to the other end of the pulse conversion submodule to visually display the digital signal.
In other embodiments, the liquid level measuring device further comprises a meter 8, as shown in fig. 2, the meter 8 is arranged above the transducer 6, and the other end of the pulse conversion submodule is connected with the meter 8 to send digital signals to the meter 8. In other embodiments, the other end of the pulse conversion sub-module is provided with a signal transmitter, the instrument 8 is provided with a signal receiver, and the signal transmitter and the signal receiver are matched with each other to complete the transmission and reception of the digital signal. In other embodiments, the meter 8 includes a current display module and a current receiving module, one end of the current receiving module is connected to the other end of the pulse conversion sub-module for receiving the digital signal, and the current display module is connected to the other end of the current receiving module for visually displaying the digital signal. In other embodiments, as shown in fig. 3, a current display module is disposed on the upper side of the meter 8, a current receiving module is disposed inside the meter 8, the other end of the pulse conversion submodule transmits the digital signal to one end of the current receiving module, the other end of the current receiving module is connected to an input end of the current display module, the current display module displays the digital signal visually, and the current display module may be provided with a pointer or a digital display screen. In other embodiments, a cover plate may be further disposed above the meter 8, and the cover plate is hinged to one side of the meter 8 for protecting the screen of the current display module. This liquid level measurement device carries out visual display with the signal through the current display module of instrument 8, makes the user can the visual observation liquid level height, masters operating mode information.
In other embodiments, the probe 5 comprises a wave guide rod and a cable, one end of the wave guide rod is connected with the energy transducer 6, the other end of the wave guide rod penetrates through the cavity 3, the pulse emission submodule and the pulse receiving submodule are both connected with the wave guide rod through the cable, the pulse emission submodule sends pulse waves to a measured liquid level 7 through the wave guide rod, and the wave guide rod transmits echoes to the pulse receiving submodule.
In other embodiments, as shown in fig. 2, the upper end of the guided wave rod is connected with the energy transducer 6, the lower end of the guided wave rod penetrates through the cavity 3, the lower end of the guided wave rod is located below the liquid level of the measured medium, the output end of the pulse emission submodule and the input end of the pulse reception submodule are both connected with one end of the cable, the other end of the cable is connected with the guided wave rod, the pulse wave and the echo are transmitted through the cable and the guided wave rod, the output end of the pulse emission submodule sends the pulse wave, the pulse wave is transmitted to the guided wave rod through the cable, the pulse wave is transmitted downwards to the inside of the cylinder 1 along the guided wave rod, the pulse wave forms the echo through the measured medium, the echo is transmitted upwards to the cable through the guided wave rod, and the input end of the pulse reception submodule acquires the echo at the cable. In other embodiments, the probe 5 further includes a hollow guard bar 9, the guard bar 9 is sleeved outside the waveguide bar, and the guard bar 9 is provided with a plurality of through holes. In other embodiments, the outside cover of guided wave pole is equipped with guard bar post 9, and guard bar post 9 upper end and guided wave pole's lateral surface or upper end fixed connection have seted up a plurality of through-holes on the guard bar post 9 side, and the measured medium passes through the through-hole and enters into the inside and guided wave pole contact of guard bar post 9, and guard bar post 9 lower extreme can be the lid that opens the design and also can be equipped with the through-hole. The guided wave pole can protect the guided wave pole to avoid it to receive colliding with of external part, and the multiple spot through-hole that sets up makes the liquid level height of being surveyed the medium more accurate to hoisting device's measurement accuracy.
Referring to fig. 2, in other embodiments, the water inlet 2 includes a first inlet 10 and a second inlet 11 sequentially arranged along the opening 4 toward the bottom of the cylinder 1, and a vertical distance between the first inlet 10 and the second inlet 11 is 1100 mm.
In other embodiments, as shown in fig. 2, a first inlet 10 and a second inlet 11 are sequentially formed in the side wall of the cylinder 1 from top to bottom, the first inlet 10 and the second inlet 11 are respectively connected with two water pipes of a device to be tested, and the device to be tested injects a medium to be tested into the cylinder 1 from the first inlet 10 and the second inlet 11. The vertical distance between the first inlet 10 and the second inlet 11 is 1100mm, in other embodiments, a 24V direct current power supply is installed, the current value displayed by the current display module is 20mA when the liquid level of the medium to be measured is kept level with the first inlet 10, and the current value displayed by the current display module is 4mA when the liquid level of the medium to be measured is kept level with the second inlet 11. In other embodiments, the bottom of the waveguide rod is 100mm from the bottom of the cavity 3, and the second inlet 11 is 150mm from the bottom of the cavity 3.
Referring to fig. 2, in other embodiments, the liquid level measuring device further includes a cover 12, the cover 12 is disposed on the opening 4 of the cylinder 1, and a connecting hole for the rod guard 9 to pass through is formed in the middle of the cover 12.
In other embodiments, as shown in fig. 2, a cover 12 is disposed at the opening 4 of the cylinder 1, the cover 12 covers the cylinder 1, a connection hole for the rod protection column 9 to pass through is formed in the middle of the cover 12, and the rod protection column 9 is fixedly connected to the cover 12 at the connection hole. In other embodiments, as shown in fig. 2, the upper end of the guard bar 9 is fixedly connected to the lower end of a connecting hole in the middle of the cover 12, and the wave guide bar passes through the connecting hole. In other embodiments, a sealing ring is provided at the connecting hole. In other embodiments, as shown in fig. 2, the liquid level measuring device further comprises an adjustable nut 13, the outer side surface of the guard bar post 9 is provided with external threads matched with the adjustable nut 13, and the adjustable nut 13 is arranged between the cylinder cover 12 and the transducer 6. In other embodiments, the upper end of the guard bar post 9 is fixedly connected with the energy conversion member 6, the outer side surface of the guard bar post 9 is provided with external threads, the adjustable nut 13 is connected to the guard bar post 9 between the cylinder cover 12 and the energy conversion member 6 and is connected with the external threads, and the length of the guard bar post 9 entering the cavity 3 is adjusted by adjusting the position of the adjustable nut 13 so as to meet the requirements of the cylinder bodies 1 with different heights.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A liquid level measuring device, comprising:
the water inlet matched with the water pipe of the device to be tested is formed in the side wall of the cylinder, a cavity communicated with the water inlet is formed in the cylinder, and an opening communicated with the cavity is formed in one end of the cylinder;
a probe disposed within the cavity through the opening;
the energy conversion piece, the energy conversion piece sets up the nearly opening one end department of probe, be equipped with the pulse module in the energy conversion piece, the pulse module includes pulse emission submodule piece and pulse receiving submodule piece, the pulse emission submodule piece with the probe is connected, the pulse emission submodule piece passes through the probe sends pulse wave to being surveyed the liquid level, the pulse receiving submodule piece with the probe is connected, the probe will be in the echo conveying that is surveyed the liquid level and forms to the pulse receiving submodule piece.
2. The fluid level measuring device of claim 1, wherein the pulse module is further provided with a pulse conversion submodule, one end of the pulse conversion submodule is connected with the pulse receiving submodule, and the pulse conversion submodule is used for converting the echo into a digital signal.
3. The fluid level measuring device of claim 2, further comprising a meter connected to the other end of the pulse conversion submodule for visually displaying the digital signal.
4. The liquid level measuring device of claim 3, wherein the meter comprises a current display module and a current receiving module, one end of the current receiving module is connected with the other end of the pulse conversion sub-module for receiving the digital signal, and the current display module is connected with the other end of the current receiving module for visually displaying the digital signal.
5. The liquid level measuring device of claim 1, wherein the probe comprises a wave guide rod and a cable, one end of the wave guide rod is connected with the energy transducer, the other end of the wave guide rod penetrates through the cavity, the pulse emission submodule and the pulse receiving submodule are both connected with the wave guide rod through the cable, the pulse emission submodule sends pulse waves to a measured liquid level through the wave guide rod, and the wave guide rod transmits the echo to the pulse receiving submodule.
6. The liquid level measuring device of claim 5, wherein the probe further comprises a hollow guard bar post, the guard bar post is sleeved outside the waveguide bar, and a plurality of through holes are formed in the guard bar post.
7. The liquid level measuring device of claim 1, wherein the water inlet comprises a first inlet and a second inlet which are arranged in sequence along the opening towards the bottom of the cylinder, and the vertical distance between the first inlet and the second inlet is 1100 mm.
8. The liquid level measuring device of claim 6, further comprising a cover, wherein the cover is disposed on the opening of the barrel, and a connecting hole for the rod-protecting column to pass through is formed in the middle of the cover.
9. The liquid level measuring device of claim 8, further comprising an adjustable nut, wherein the outer side surface of the guard post is provided with external threads matched with the adjustable nut, and the adjustable nut is arranged between the cylinder cover and the energy conversion piece.
10. The fluid level measuring device of claim 1, further comprising a battery mounted within the transducer in connection with the pulse transmission submodule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121109895.4U CN215491961U (en) | 2021-05-21 | 2021-05-21 | Liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121109895.4U CN215491961U (en) | 2021-05-21 | 2021-05-21 | Liquid level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215491961U true CN215491961U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121109895.4U Active CN215491961U (en) | 2021-05-21 | 2021-05-21 | Liquid level measuring device |
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| CN (1) | CN215491961U (en) |
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2021
- 2021-05-21 CN CN202121109895.4U patent/CN215491961U/en active Active
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