CN216013287U - Fluid measuring device - Google Patents
Fluid measuring device Download PDFInfo
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- CN216013287U CN216013287U CN202121812701.7U CN202121812701U CN216013287U CN 216013287 U CN216013287 U CN 216013287U CN 202121812701 U CN202121812701 U CN 202121812701U CN 216013287 U CN216013287 U CN 216013287U
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Abstract
The utility model relates to the technical field of measuring instruments, in particular to a fluid measuring device, which comprises a pH meter and a mounting bracket for mounting the pH meter, wherein the mounting bracket comprises a cylinder, a wear-resistant head arranged on the end side of a piston rod of the cylinder and a fixed sleeve arranged at the end part of a cylinder body of the cylinder; a first mounting cavity is formed in a piston rod of the air cylinder, a second mounting cavity is formed in the wear-resistant head, a main body part of the pH meter is arranged in the first mounting cavity, and a probe part of the pH meter is arranged in the second mounting cavity; the outer wall of the wear-resisting head is provided with a through hole communicated with the second mounting cavity; a channel for a piston rod and a wear-resisting head of the cylinder to pass through is formed in the fixed sleeve; and the outer wall of the fixed sleeve is respectively provided with a liquid inlet and a liquid outlet which are communicated with the channel. The pH meter is not required to be disassembled, and cleaning and maintenance work can be carried out, so that the maintenance work is simple and convenient.
Description
Technical Field
The utility model relates to the technical field of measuring instruments, in particular to a fluid measuring device.
Background
In the existing desulfurization tower system, in order to detect the pH value during desulfurization, a fluid measuring device is usually provided in the system.
The existing fluid measuring device mainly comprises a pH meter and a mounting bracket for mounting the pH meter, wherein the pH meter mainly comprises a main body part and a probe part; install the pipeline of desulfurizing tower with the pH meter through the installing support in, detect pH value, in daily use, need unscheduled washing the probe part of pH meter and maintain, then current pH meter is direct fixed mounting in the pipeline, wants to wash the probe part of maintaining the pH meter, needs to dismantle the pH meter and wash again, and the operation is comparatively inconvenient, so still remain to improve.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a fluid measuring device.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a fluid measuring device comprises a pH meter and a mounting bracket for mounting the pH meter, wherein the mounting bracket comprises a cylinder, a wear-resistant head arranged on the end side of a piston rod of the cylinder and a fixed sleeve arranged at the end part of a cylinder body of the cylinder; a first mounting cavity is formed in a piston rod of the air cylinder, a second mounting cavity is formed in the wear-resistant head, a main body part of the pH meter is arranged in the first mounting cavity, and a probe part of the pH meter is arranged in the second mounting cavity; the outer wall of the wear-resisting head is provided with a through hole communicated with the second mounting cavity; a channel for a piston rod and a wear-resisting head of the cylinder to pass through is formed in the fixed sleeve; and the outer wall of the fixed sleeve is respectively provided with a liquid inlet and a liquid outlet which are communicated with the channel.
The advantage of this scheme of adoption lies in:
firstly, in this scheme, install in the piston rod of cylinder through the main part with the pH meter, and install the probe part of pH meter in wear-resisting head, and set up the fixed cover that has inlet and liquid outlet, so, when needs wash the maintenance to the probe part of pH meter, only need control the cylinder action, make the piston rod drive wear-resisting head retrieve and get into fixed cover in, then to wear to lead to water alright realization washing in the head through the inlet, so just need not to dismantle the pH meter, also can wash maintenance work, simple and convenient maintenance work.
Secondly, in this scheme, the probe part of pH meter sets up in wear-resisting head, therefore wear-resisting head can play certain guard action to the probe part of pH meter.
Meanwhile, the main body part of the pH meter is arranged in a piston rod of the air cylinder, so that the whole structure is more compact.
Furthermore, the wear-resistant head is detachably connected with a piston rod of the air cylinder.
Further, a sealing element which is used for abutting against the outer peripheral wall of the wear-resisting head is fixedly connected to the inner peripheral wall of the channel.
Further, the sealing element is a spring sealing ring.
Further, the device also comprises a cleaning system; the cleaning system comprises a water inlet pipeline communicated with the liquid inlet and used for supplying water to the liquid inlet, and a water outlet pipeline communicated with the liquid outlet; and a first valve is arranged on the water inlet pipeline.
Furthermore, the cleaning system further comprises a first water pump and a cleaning liquid tank for storing cleaning liquid, wherein the liquid inlet end of the first water pump is connected with the cleaning liquid tank for extracting the cleaning liquid, and the liquid outlet end of the first water pump is communicated with the liquid inlet.
Furthermore, the cleaning system also comprises a liquid return pipeline communicated with the liquid outlet, and the liquid return pipeline is communicated with the cleaning liquid tank; and the liquid return pipeline and the water outlet pipeline are both provided with second valves.
Furthermore, the system also comprises a calibration system; the calibration system comprises a second water pump and a calibration tank, wherein the calibration tank is used for storing calibration liquid for calibrating the pH meter; and the liquid inlet end of the water inlet end of the second water pump is communicated with the calibration tank to extract calibration liquid, and the liquid outlet end of the second water pump is communicated with the liquid inlet.
Other advantages and effects of the utility model are specifically described in the detailed description section.
Drawings
FIG. 1 is a schematic view of the present invention (piston rod retracted);
FIG. 2 is a schematic view of the present invention (piston rod extended state);
FIG. 3 is a schematic structural view of the present invention in a state where a pH meter is not installed;
FIG. 4 is an enlarged view of a portion of the connection of the wear head and the piston rod;
fig. 5 is a schematic diagram of the cleaning system.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
Example (b):
as shown in fig. 1 and fig. 2, the present embodiment provides a fluid measuring apparatus, which includes a pH meter 1, and a mounting bracket for mounting the pH meter 1, and it is worth explaining that the existing pH meter 1 includes a main body portion 11 and a probe portion 12 connected to the main body portion 11, and the probe portion 12 is extended into a fluid to be measured to perform detection.
The mounting bracket comprises a cylinder 2, a wear-resistant head 3 arranged on the end side of a piston rod 21 of the cylinder 2, and a fixed sleeve 4 arranged at the end part of a cylinder body of the cylinder 2. It should be noted that, in this embodiment, the cylinder 2 may adopt an existing reciprocating cylinder 2, which includes a cylinder body and a piston rod 21 for axially moving in the cylinder body, wherein two ends of the piston rod 21 respectively extend out from two ends of the cylinder body, and the piston rod is driven by the piston in the cylinder body to axially reciprocate; as for such a reciprocating cylinder 2, there are many documents published in the prior art, and therefore, they will not be described in detail herein.
As shown in fig. 3, the piston rod 21 of the cylinder 2 has a first mounting cavity 211 therein, and the first mounting cavity 211 extends along the axial direction of the piston rod 21 for mounting the main body part 11 of the pH meter 1; for convenience of description, in this embodiment, an end of the piston rod 21 away from the wear-resistant head 3 is referred to as a tail end, and an end where the wear-resistant head 3 is installed is referred to as a head end; the two ends of the first installation cavity 211 respectively penetrate through the tail end and the head end of the piston rod 21, so that the main body part 11 of the pH meter 1 can extend into the first installation cavity 211 from the tail end of the piston rod 21, and the main body part 11 of the pH meter 1 is installed in the first installation cavity 211.
The wear-resisting head 3 is internally provided with a second mounting cavity 31, wherein the second mounting cavity 31 is communicated with the first mounting cavity 211 to allow the probe part 12 of the pH meter 1 to extend into the second mounting cavity 31, and the probe part 12 of the pH meter 1 is mounted in the second mounting cavity 31, so that when the wear-resisting head is actually mounted, a sealing ring can be arranged between the inner wall of the first mounting cavity 211 and the outer wall of the main body part 11 of the pH meter 1 in a cushioning manner, and the sealing performance between the inner wall of the first mounting cavity 211 and the outer wall of the main body part 11 of the pH meter 1 is improved.
The peripheral wall of the wear-resisting head 3 is provided with a plurality of through holes 32 communicated with the second mounting cavity 31, wherein the number of the through holes 32 is 2, and the two through holes 2 are oppositely arranged; of course, the number of through holes may also be 4, with 4 through holes 32 being distributed along the circumferential array of wear heads 3. During detection, fluid to be detected enters the second mounting cavity 31 from one through hole 32 and is detected by the probe part 12, and flowing fluid flows out of the second mounting cavity 31 from other through holes 32, so that the detection purpose can be realized. According to the scheme, the probe part 12 of the pH meter 1 is accommodated in the wear-resistant head 3, so that the probe part 12 can be protected to a certain extent through the wear-resistant head 3, and the main body part 11 is installed in the piston rod 21, so that the whole structure is more compact.
The fixed sleeve 4 is internally provided with a channel 41 for the piston rod 21 and the wear-resistant head 3 of the cylinder 2 to pass through, in other words, the wear-resistant head 3 and the piston rod 21 can move axially along the channel 41; the outer wall of the fixed sleeve 4 is respectively provided with a liquid inlet 42 and a liquid outlet 43 which are communicated with the channel 41.
Through arranging the fixing sleeve 4 with the channel 41 and arranging the liquid inlet 42 and the liquid outlet 43 on the fixing sleeve 4, when the probe part 12 of the pH meter 1 needs to be cleaned and maintained, the piston rod 21 can be retracted through the action of the cylinder 2, so as to drive the wear-resistant head 3 to retract into the channel 41 of the wear-resistant head 3, and then clean water or cleaning liquid can be introduced into the liquid inlet 42, for convenience of description, only clean water is introduced for example, the clean water enters the channel 41 from the liquid inlet 42, and then enters the second mounting cavity 31 from the through hole 32 on the wear-resistant head 3 to clean the probe part 12 in the second mounting cavity 31, and then the clean water in the second mounting cavity 31 carries the washed impurities to be discharged from the liquid outlet 43, so as to achieve the cleaning purpose; when the detection work is needed, the cylinder 2 is controlled to act again, the piston rod 21 is driven to drive the wear-resisting head 3 to extend out of the channel 41, and the detection work can be started at the moment.
It should be noted that, in order to ensure that clean water or cleaning liquid can better enter the second mounting cavity 31 during the cleaning process, in this embodiment, when the wear-resistant head 3 is recovered to enter the channel 41, an outer peripheral wall of the wear-resistant head 3 and an inner peripheral wall of the channel 41 are disposed at an interval to form an interlayer space for liquid to flow, and the liquid introduced by the liquid inlet 42 can enter the through hole 32 through the interlayer space and then enter the second mounting cavity 31 for cleaning.
In order to prevent the clean water or cleaning liquid for cleaning from being directly led out from the interlayer space, in this embodiment, a sealing member for abutting against the outer peripheral wall of the wear head 3 is fixedly connected to the front end of the inner peripheral wall of the channel 41, and the outer end side of the channel 41 is blocked by the sealing member to achieve a sealing effect, so that the cleaning liquid is not directly discharged from the interlayer.
In this embodiment, the sealing element is a spring sealing ring 5, and there are a lot of published literature descriptions on the spring sealing ring 5 in the prior art, so detailed description is omitted here, and here, the spring sealing ring 5 is adopted not only to achieve the sealing effect, but also because it has elasticity itself, so that when the wear-resistant head 3 retracts along with the piston rod 21, friction occurs between the wear-resistant head 3 and the outer wall thereof, so as to scrape off some impurities such as silt attached to the wear-resistant head 3.
Because wear-resisting head 3 need stretch into the fluid (for example water) that awaits measuring along with probe part 12 when detecting, so make the periphery wall of wear-resisting head 3 constantly erode by impurity such as silt in the fluid for its surface wear, make the spring seal be difficult to realize good sealed to wear-resisting head's surface, influence subsequent use, so in this embodiment, wear-resisting head 3 demountable installation is at the head end of the piston rod 21 of cylinder 2, so when wear-resisting head 3 wearing and tearing are serious, can take off wear-resisting head 3 and change, specific:
the wear-resistant head 3 is in threaded connection with the head end of the piston rod 21 of the cylinder 2, specifically, as shown in fig. 4, a first concave step 33 is formed on the inner wall of the head end of the piston rod 21, and the first concave step 33 is arranged along the circumferential direction of the piston rod 21; a second concave step 34 is arranged on the outer wall of one end of the wear-resisting head 3, which is opposite to the piston rod 21, and the second concave step 34 is arranged along the circumferential direction of the wear-resisting head 3; be equipped with the internal thread on the internal perisporium of first concave rank 33, be equipped with the external screw thread with the internal thread adaptation on the periphery wall of second concave rank 34, during the assembly, align second concave rank 34 with first concave rank 33 and insert, then rotatory wear-resisting head 3, at this moment under the cooperation of internal thread and external screw thread, just threaded connection is at the head end of piston rod 21 to wear-resisting head 3.
The fluid measuring device provided by the embodiment further comprises a cleaning system; as shown in FIG. 5, the cleaning system includes a water inlet line 61 in communication with inlet port 42 for supplying water to inlet port 42, and a water outlet line 62 in communication with outlet port 43; the water inlet pipe 61 is provided with a first valve 611. Wherein the water inlet end of the water inlet pipeline 61 can be connected to a self-process water system, or tap water, etc.; when cleaning is needed, the first valve 611 is opened, water is introduced into the liquid inlet 42 through the water inlet pipeline 61, and finally enters the second installation cavity 31 for cleaning, and sewage generated by cleaning is introduced into the water outlet pipeline 62 through the liquid outlet 43 and is discharged.
In order to further clean the probe portion 12, in this embodiment, the cleaning system further includes a first water pump 63 and a cleaning liquid tank 64 for storing a cleaning liquid, a liquid inlet end of the first water pump 63 is connected to the cleaning liquid tank 64 for pumping the cleaning liquid, a liquid outlet end of the first water pump 63 is communicated with the liquid inlet 42, specifically, the liquid outlet end of the first water pump 63 may be connected to the liquid inlet 42 after being connected in parallel with the water inlet pipe 61, the first water pump 63 herein may adopt a peristaltic pump, the whole cleaning process may include two steps, the first step is clear water washing, which is described in detail in the foregoing, and is not described herein again; the second step is cleaning by cleaning fluid, and the main steps are as follows:
after the first-step clean water washing is completed, the first valve 611 on the water inlet pipeline 61 is closed, the first water pump 63 is started, at this time, the first water pump 63 pumps the cleaning liquid in the cleaning liquid tank 64 to the liquid inlet 42, and finally the cleaning liquid enters the second mounting cavity 31 to clean the probe part 12, and the cleaned cleaning liquid is guided into the water outlet pipeline 62 through the liquid outlet 43 to be discharged.
In order to recycle the cleaning liquid in the cleaning liquid tank 64, in this embodiment, the cleaning system further includes a liquid return line 65 communicated with the liquid outlet 43, and the liquid return line 65 is communicated with the cleaning liquid tank 64; the liquid return line 65 and the water outlet line 62 are provided with a second valve 66. Therefore, when the cleaning liquid in the cleaning liquid tank 64 needs to be recycled for cleaning, the second valve 66 on the water outlet pipeline 62 can be closed, the second valve 66 on the liquid return pipeline 65 is opened, the cleaning liquid entering the second mounting cavity 31 can flow back into the cleaning liquid tank 64 through the liquid return pipeline 65 for reuse, and certainly, if the cleaning liquid is directly discharged, the second valve 66 on the water outlet pipeline 62 can be opened, the second valve 66 on the liquid return pipeline 65 is closed, and the cleaning liquid entering the second mounting cavity 31 can be directly discharged through the water outlet pipeline 62.
The pH meter 1 needs to be calibrated by using a calibration liquid at irregular intervals, and the embodiment further includes a calibration system; the calibration system comprises a second water pump and a calibration tank 71, wherein the calibration tank 71 is used for storing calibration liquid for calibrating the pH meter 1; the liquid inlet end of the water inlet end of the second water pump is communicated with the calibration tank 71 to extract calibration liquid, and the liquid outlet end of the second water pump is communicated with the liquid inlet 42.
The calibration tank 71 comprises a first calibration tank 711 and a second calibration tank 712, wherein the pH value of the calibration liquid in the first calibration tank 711 is 4, and the pH value of the calibration liquid in the second calibration tank 712 is 6.86; the liquid inlet end of the second water pump 72 is respectively communicated with the first calibration tank 711 and the second calibration tank 712 through a three-way valve a, and the liquid inlet 42 is communicated with the liquid outlet end of the first water pump 63 and the water inlet pipeline 61 through a three-way valve b.
During calibration, the second water pump 72 is started, the three-way valve a is switched to be communicated with the first calibration tank 711, and the three-way valve b is switched to be communicated with the liquid outlet end of the second water pump 72; at this time, the second water pump 72 pumps the calibration liquid in the first calibration tank 711 to the liquid inlet 42, and finally enters the second installation cavity 31 for calibration of the pH meter 1, and the calibration liquid entering the second installation cavity 31 is finally discharged through the water outlet pipeline 62.
Then, the three-way valve a is switched to communicate with the second calibration tank 712, at this time, the second water pump 72 pumps the calibration liquid in the second calibration tank 712 to the liquid inlet 42, and finally enters the second installation cavity 31 for calibration of the pH meter 1, and the calibration liquid entering the second installation cavity 31 is finally discharged through the water outlet pipeline 62.
In this embodiment, the first valve 611, the second valve 66, the three-way valve a, and the three-way valve b may be solenoid valves.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention.
Claims (8)
1. A fluid measuring device comprises a pH meter and a mounting bracket for mounting the pH meter, and is characterized in that the mounting bracket comprises a cylinder, a wear-resistant head arranged on the end side of a piston rod of the cylinder, and a fixed sleeve arranged at the end part of a cylinder body of the cylinder; a first mounting cavity is formed in a piston rod of the air cylinder, a second mounting cavity is formed in the wear-resistant head, a main body part of the pH meter is arranged in the first mounting cavity, and a probe part of the pH meter is arranged in the second mounting cavity; the outer wall of the wear-resisting head is provided with a through hole communicated with the second mounting cavity; a channel for a piston rod and a wear-resisting head of the cylinder to pass through is formed in the fixed sleeve; and the outer wall of the fixed sleeve is respectively provided with a liquid inlet and a liquid outlet which are communicated with the channel.
2. A fluid measuring device according to claim 1, wherein said wear head is removably attached to a piston rod of a cylinder.
3. A fluid measuring device according to claim 1, wherein a seal is fixedly attached to the inner peripheral wall of said channel for abutting against the outer peripheral wall of the wear head.
4. A fluid measuring device according to claim 3 wherein the seal is a spring-loaded seal.
5. A fluid measuring device according to any of claims 1 to 4, further comprising a cleaning system; the cleaning system comprises a water inlet pipeline communicated with the liquid inlet and used for supplying water to the liquid inlet, and a water outlet pipeline communicated with the liquid outlet; and a first valve is arranged on the water inlet pipeline.
6. The fluid measuring device according to claim 5, wherein the cleaning system further comprises a first water pump and a cleaning liquid tank for storing cleaning liquid, the first water pump has a liquid inlet end connected to the cleaning liquid tank for pumping the cleaning liquid, and a liquid outlet end communicated with the liquid inlet.
7. A fluid measuring device according to claim 6, wherein the cleaning system further comprises a liquid return line in communication with the liquid outlet, the liquid return line being in communication with a cleaning liquid tank; and the liquid return pipeline and the water outlet pipeline are both provided with second valves.
8. A fluid measuring device according to claim 7, further comprising a calibration system; the calibration system comprises a second water pump and a calibration tank, wherein the calibration tank is used for storing calibration liquid for calibrating the pH meter; and the liquid inlet end of the water inlet end of the second water pump is communicated with the calibration tank to extract calibration liquid, and the liquid outlet end of the second water pump is communicated with the liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812701.7U CN216013287U (en) | 2021-08-04 | 2021-08-04 | Fluid measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812701.7U CN216013287U (en) | 2021-08-04 | 2021-08-04 | Fluid measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN216013287U true CN216013287U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121812701.7U Active CN216013287U (en) | 2021-08-04 | 2021-08-04 | Fluid measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117000162A (en) * | 2023-06-25 | 2023-11-07 | 茂名市广地化工有限公司 | PH detection device and PH value detection method |
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2021
- 2021-08-04 CN CN202121812701.7U patent/CN216013287U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117000162A (en) * | 2023-06-25 | 2023-11-07 | 茂名市广地化工有限公司 | PH detection device and PH value detection method |
| CN117000162B (en) * | 2023-06-25 | 2024-04-12 | 茂名市广地化工有限公司 | PH detection device and PH value detection method |
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