CN117823419A - Intelligent mining self-priming pump with alarm mechanism - Google Patents
Intelligent mining self-priming pump with alarm mechanism Download PDFInfo
- Publication number
- CN117823419A CN117823419A CN202211550878.3A CN202211550878A CN117823419A CN 117823419 A CN117823419 A CN 117823419A CN 202211550878 A CN202211550878 A CN 202211550878A CN 117823419 A CN117823419 A CN 117823419A
- Authority
- CN
- China
- Prior art keywords
- alarm mechanism
- pump
- sensor
- pump body
- sensor probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005065 mining Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000000523 sample Substances 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000037452 priming Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 3
- 238000005192 partition Methods 0.000 description 8
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The invention discloses an intelligent mining self-priming pump with an alarm mechanism, which relates to the technical field of self-priming pumps and comprises a motor, wherein a bearing assembly is arranged below the motor, a pump body is arranged below the bearing assembly, a protection plate is arranged on the surface of the pump body, a water outlet connecting chamber is arranged on the other side of the pump body, a vertical check valve is arranged in a water outlet pipe, a water inlet pipe is arranged on one side, far away from the pump body, of the water inlet connecting chamber, an electric air control valve is arranged in the water inlet pipe, a first alarm mechanism is arranged on one side above the pump body, and a second alarm mechanism is arranged on the other side above the pump body. The intelligent mining self-priming pump with the alarm mechanism is suitable for being used in a mine, is provided with the automatic alarm mechanism, and can enable a user to sense the running condition of the intelligent mining self-priming pump with the alarm mechanism outside the mine, and meanwhile can send an alarm according to actual conditions to provide information for the user.
Description
Technical Field
The invention relates to the technical field of self-priming pumps, in particular to an intelligent mining self-priming pump with an alarm mechanism.
Background
The self-priming pump belongs to self-priming centrifugal pump, and has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, stronger self-priming capability and the like. The pipeline does not need to be provided with a bottom valve, the quantitative liquid introduction in the pump body is only required to be ensured before the operation, the self-priming pumps with different materials can be adopted for different liquids,
the patent of application number 200810202860.8 discloses a vertical self priming pump of high suction lift power seal type, includes: the motor is fixedly connected to the pump bracket through a screw, and the pump housing consists of a pump water pumping chamber and is connected with the pump bracket; the left side and the right side of the pump shell are provided with a self-priming pump inlet and a pump outlet; an electromagnetic vacuum breaking valve is arranged at the inlet of the self-priming pump, and an automatic exhaust valve is arranged at the upper part of the pump housing pumping chamber; the impeller is connected with the pump shaft through a connecting key, a guide vane type gas-liquid mixer is arranged at the periphery of the impeller, a partition plate is arranged between the outer edge of the guide vane type gas-liquid mixer and the pump outlet, and the pump shaft is connected with the motor shaft through a coupler; further comprises: a power seal and a power booster; a power sealing device is arranged at the joint of the pump shaft and the pump bracket; the power supercharging device is arranged between the pumping pressure water chamber and the inlet of the self-priming pump; the problem that the shaft seal of the common vertical self-priming pump is easy to leak and damage is solved; can work normally from inhaling, can work stably under the high suction-stroke working condition.
Boilers similar to the above application currently suffer from the following drawbacks:
when the self-priming pump is applied to the interior of a mine, the self-priming pump is not comprehensive enough in function, and a common self-priming pump is not provided with an alarm mechanism, so that a user cannot be helped to timely know the water pumping condition in the mine.
Therefore, in view of the above, research and improvement are carried out on the existing structure and the defects, and an intelligent mining self-priming pump with an alarm mechanism is provided so as to achieve the purpose of higher practical value.
Disclosure of Invention
The invention aims to provide an intelligent mining self-priming pump with an alarm mechanism, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an intelligent mining self priming pump with alarm mechanism, includes the motor, bearing assembly is installed to the below of motor, and the pump body is installed to bearing assembly's below, the surface mounting of the pump body has the guard plate, and one side of the pump body installs the water inlet linking chamber, the delivery port linking chamber is installed to the opposite side of the pump body, and the delivery port linking chamber is kept away from one side of the pump body and is installed the outlet pipe, the internally mounted of outlet pipe has vertical check valve, the inlet tube is installed to one side that the pump body was kept away from to the water inlet linking chamber, and the internally mounted of inlet tube has electronic air control valve, first alarm mechanism is installed to one side of the top of the pump body, and second alarm mechanism is installed to the top opposite side of the pump body.
Further, the bearing assembly comprises a bearing, a pump shaft and a sealing ring, wherein the output end of the motor is connected with the bearing, one end of the bearing is connected with the pump shaft, and the sealing ring is installed on the outer side of the joint of the bearing and the pump shaft.
Further, a first pressure sensor is installed at the inner bottom of the pump body, a partition plate is installed at the middle position of the inner portion of the pump body, an impeller is installed at the middle position of the partition plate, and an organic sealing stationary ring is installed above the partition plate.
Further, the output end of the pump shaft is rotationally connected with the impeller, and the inner surface of the mechanical seal stationary ring is tightly attached to the surface of the pump shaft.
Further, a second pressure sensor is installed above the inside of the water inlet connecting chamber, and a first flowmeter is installed in the middle of the inside of the water inlet connecting chamber.
Further, a third pressure sensor is arranged above the inside of the water outlet connecting chamber, and a second flowmeter is arranged in the middle of the inside of the water outlet connecting chamber.
Further, the first alarm mechanism comprises a first sealing box, a first sensor probe, a second sensor probe, a first water level sensor and a processor connector, wherein the processor connector is arranged on one side of the first sealing box, the first sensor probe is arranged in the middle of the first sealing box, the first water level sensor is arranged above one side of the first sensor probe, and the second sensor probe is arranged below one side of the first sensor probe.
Further, the first sensor probe, the second sensor probe and the first water level sensor are all electrically connected with the processor connector, the first sensor probe is electrically connected with the first pressure sensor, the second sensor probe is electrically connected with the third pressure sensor, and the first water level sensor is electrically connected with the second flowmeter.
Further, the second alarm mechanism comprises a second sealing box, a temperature sensor, a transmission line connector, a third sensor probe, a second water level sensor and a buzzer, wherein the temperature sensor is installed in the second sealing box, the transmission line connector is installed below the second sealing box, the second water level sensor is installed on one side of the transmission line connector, the third sensor probe is installed on one side of the second sealing box, and the buzzer is installed on the other side of the second sealing box.
Further, the temperature sensor, the transmission line connector, the third sensor probe and the second water level sensor are electrically connected with the buzzer, the third sensor probe is electrically connected with the second pressure sensor, and the second water level sensor is electrically connected with the first flowmeter.
The invention provides an intelligent mining self-priming pump with an alarm mechanism, which has the following beneficial effects: the intelligent mining self-priming pump with the alarm mechanism is suitable for the interior of a mine, is provided with the automatic alarm mechanism, can be perceived by a user from the exterior of the mine, and can send an alarm according to actual conditions to provide information for the user;
1. the invention is connected with an external processor through a processor connector 1105 by an electric wire, and is connected with the processor outside a mine through a transmission line connector 1203 by a transmission line, the motor 1 drives the impeller 302 to rotate through the bearing component 2, specifically, the motor 1 drives the pump shaft 202 to rotate through the bearing 201, the pump shaft 202 drives the impeller 302 to rotate, then pressure is formed in the pump body 3, the electric air control valve 10 is opened, then water flow enters the water inlet connecting chamber 5 from the water inlet pipe 9 through the electric air control valve 10, at the moment, the second pressure sensor 501 and the first flowmeter 502 measure the pressure and the water inflow in the water inlet connecting chamber 5, then the water flow enters the pump body 3, and the first pressure sensor 301 measures the pressure in the pump body 3.
2. The water flow enters the water outlet connecting chamber 6, at this time, the third pressure sensor 601 and the second flowmeter 602 measure the pressure and the water outlet flow in the water outlet connecting chamber 6, when the water outlet connecting chamber is used, the first water level sensor 1104 and the second water level sensor 1205 can measure the water level in the mine, the temperature sensor 1202 can sense the temperature of the equipment, the measured data are transmitted to an external processor through the processor connector 1105 and the transmission line connector 1203, the actual water pumping condition in the mine is reported to an operator according to the calculation of the processor, and once the measured data are abnormal, the buzzer 1206 can give an alarm and prompt.
Drawings
FIG. 1 is a schematic diagram of the whole structure of an intelligent mining self-priming pump with an alarm mechanism;
FIG. 2 is a schematic diagram of a bearing assembly of an intelligent mining self-priming pump with an alarm mechanism according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of an intelligent mining self-priming pump with an alarm mechanism;
FIG. 4 is a schematic diagram of the internal structure of a first alarm mechanism of the intelligent mining self-priming pump with an alarm mechanism;
fig. 5 is a schematic diagram of the internal structure of a second alarm mechanism of the intelligent mining self-priming pump with the alarm mechanism.
In the figure: 1. a motor; 2. a bearing assembly; 201. a bearing; 202. a pump shaft; 203. a seal ring; 3. a pump body; 301. a first pressure sensor; 302. an impeller; 303. a partition plate; 304. mechanically sealing the stationary ring; 4. a protection plate; 5. the water inlet is connected with the chamber; 501. a second pressure sensor; 502. a first flowmeter; 6. the water outlet is connected with the chamber; 601. a third pressure sensor; 602. a second flowmeter; 7. a water outlet pipe; 8. a vertical check valve; 9. a water inlet pipe; 10. an electric air control valve; 11. a first alarm mechanism; 1101. a first seal box; 1102. a first sensor probe; 1103. a second sensor probe; 1104. a first water level sensor; 1105. a processor connector; 12. a second alarm mechanism; 1201. a second seal box; 1202. a temperature sensor; 1203. a transmission line connector; 1204. a third sensor probe; 1205. a second water level sensor; 1206. a buzzer.
Detailed Description
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an intelligent mining self priming pump with alarm mechanism, including motor 1, bearing assembly 2 is installed to motor 1's below, and pump body 3 is installed to bearing assembly 2's below, pump body 3's surface mounting has guard plate 4, and water inlet junction chamber 5 is installed to one side of pump body 3, delivery port junction chamber 6 is installed to pump body 3's opposite side, and delivery port junction chamber 6 is kept away from one side of pump body 3 and is installed outlet pipe 7, outlet pipe 7's internally mounted has vertical check valve 8, inlet tube 9 is installed to one side that pump body 3 was kept away from to water inlet junction chamber 5, and inlet tube 9's internally mounted has electric air control valve 10, first alarm mechanism 11 is installed to pump body 3's top one side, and second alarm mechanism 12 is installed to pump body 3's top opposite side.
Referring to fig. 1, fig. 2 and fig. 3, specifically, the bearing assembly 2 includes a bearing 201, a pump shaft 202 and a sealing ring 203, the output end of the motor 1 is connected with the bearing 201, one end of the bearing 201 is connected with the pump shaft 202, the sealing ring 203 is installed at the outer side of the joint of the bearing 201 and the pump shaft 202, a first pressure sensor 301 is installed at the bottom of the pump body 3, a partition plate 303 is installed at the middle position of the pump body 3, an impeller 302 is installed at the middle position of the partition plate 303, an organic sealing ring 304 is installed above the partition plate 303, the output end of the pump shaft 202 is rotationally connected with the impeller 302, the inner surface of the sealing ring 304 is tightly attached to the surface of the pump shaft 202, the motor 1 drives the pump shaft 202 to rotate through the bearing 201, the pump shaft 202 drives the impeller 302 to rotate, then pressure is formed inside the pump body 3, the electric air control valve 10 is opened, and then water flows from the water inlet pipe 9 through the electric air control valve 10 to the inside of the water inlet connecting chamber 5.
The second pressure sensor 501 is installed above the inside of the water inlet connection chamber 5, the first flowmeter 502 is installed in the middle of the inside of the water inlet connection chamber 5, the third pressure sensor 601 is installed above the inside of the water outlet connection chamber 6, the second flowmeter 602 is installed in the middle of the inside of the water outlet connection chamber 6, at this time, the second pressure sensor 501 and the first flowmeter 502 measure the pressure inside the water inlet connection chamber 5 and the inflow, then the water flow enters the inside of the pump body 3, the first pressure sensor 301 measures the pressure inside the pump body 3, then the water flow enters the inside of the water outlet connection chamber 6, and at this time, the third pressure sensor 601 and the second flowmeter 602 measure the pressure inside the water outlet connection chamber 6 and the outflow.
The first alarm mechanism 11 includes a first seal box 1101, a first sensor probe 1102, a second sensor probe 1103, a first water level sensor 1104 and a processor connector 1105, the processor connector 1105 is installed on one side of the first seal box 1101, the first sensor probe 1102 is installed in the middle of the first seal box 1101, the first water level sensor 1104 is installed above one side of the first sensor probe 1102, and the second sensor probe 1103 is installed below one side of the first sensor probe 1102.
The first sensor probe 1102, the second sensor probe 1103 and the first water level sensor 1104 are all electrically connected with the processor connector 1105, the first sensor probe 1102 is electrically connected with the first pressure sensor 301, the second sensor probe 1103 is electrically connected with the third pressure sensor 601, and the first water level sensor 1104 is electrically connected with the second flowmeter 602.
Referring to fig. 1, 4 and 5, specifically, the second alarm mechanism 12 includes a second sealing box 1201, a temperature sensor 1202, a transmission line connector 1203, a third sensor probe 1204, a second water level sensor 1205 and a buzzer 1206, wherein the temperature sensor 1202 is installed in the second sealing box 1201, the transmission line connector 1203 is installed below the second sealing box 1201, the second water level sensor 1205 is installed on one side of the transmission line connector 1203, the third sensor probe 1204 is installed on one side of the second sealing box 1201, the buzzer 1206 is installed on the other side of the second sealing box 1201, the temperature sensor 1202, the transmission line connector 1203, the third sensor probe 1204 and the second water level sensor 1205 are all electrically connected with the buzzer 1206, the third sensor probe 1204 is electrically connected with the second pressure sensor 501, the second water level sensor 1205 is electrically connected with the first flowmeter 502 through the processor connector 1105, the second water level sensor 1205 is connected with an external processor through a wire, the second water level sensor 1205 and the first flowmeter 502 are connected with the processor outside the mine through the transmission line connector 1203, when the sensor is used, the first water level sensor 1104 and the second water level sensor 1205 can measure the condition of the water level inside the mine, the temperature sensor 1202 can sense the temperature of the equipment, the measured data are transmitted to the external processor through the processor connector 1105 and the transmission line connector 1203, the actual condition of pumping water inside the mine is reported to an operator according to the calculation of the processor, and once the measured data are abnormal, the buzzer 1206 can give an alarm prompt.
In summary, the intelligent mining self-priming pump with an alarm mechanism is used, firstly, the device is placed in a mine, then the device is connected with an external processor through a processor connector 1105 by an electric wire, the device is connected with the processor outside the mine through a transmission line connector 1203 by a transmission line, a motor 1 drives an impeller 302 to rotate through a bearing assembly 2, specifically, the motor 1 drives a pump shaft 202 to rotate through a bearing 201, the pump shaft 202 drives the impeller 302 to rotate, then pressure is formed in a pump body 3, an electric air control valve 10 is opened, water flow enters the water inlet connecting chamber 5 from a water inlet pipe 9 through the electric air control valve 10, at this time, a second pressure sensor 501 and a first flowmeter 502 measure the pressure and the water inlet flow in the water inlet connecting chamber 5, then the inside of the pump body 3 is got into to rivers, the inside pressure of the pump body 3 is measured to first pressure sensor 301, then the inside of delivery port linking room 6 is got into to rivers, the inside pressure of delivery port linking room 6 and play water flow are measured to third pressure sensor 601 and second flowmeter 602 this moment, when using, first water level sensor 1104 and second water level sensor 1205 can measure the condition of mine inside water level, temperature sensor 1202 can respond to the temperature of equipment, the data that above-mentioned measured is transmitted to outside treater through treater connector 1105 and transmission line connector 1203, report the actual conditions of drawing water for the inside of operating personnel mine according to the calculation of treater, and in case the data that measured is unusual, buzzer 1206 can report to the police and remind.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides an intelligent mining self priming pump with alarm mechanism, its characterized in that, including motor (1), bearing assembly (2) are installed to the below of motor (1), and the below of bearing assembly (2) is installed pump body (3), the surface mounting of pump body (3) has guard plate (4), and water inlet junction chamber (5) are installed to one side of pump body (3), delivery port junction chamber (6) are installed to the opposite side of pump body (3), and delivery port junction chamber (6) are kept away from one side of pump body (3) and are installed outlet pipe (7), the internally mounted of outlet pipe (7) has vertical check valve (8), inlet tube (9) are installed to one side of pump body (3) are kept away from to water inlet junction chamber (5), and the internally mounted of inlet tube (9) has electronic air control valve (10), first alarm mechanism (11) are installed to one side of the top of pump body (3), and second alarm mechanism (12) are installed to the top opposite side of pump body (3).
2. The intelligent mining self-priming pump with the alarm mechanism according to claim 1, wherein the bearing assembly (2) comprises a bearing (201), a pump shaft (202) and a sealing ring (203), the output end of the motor (1) is connected with the bearing (201), one end of the bearing (201) is connected with the pump shaft (202), and the sealing ring (203) is installed on the outer side of the joint of the bearing (201) and the pump shaft (202).
3. The intelligent mining self-priming pump with the alarm mechanism according to claim 2, wherein a first pressure sensor (301) is installed at the inner bottom of the pump body (3), a separation plate (303) is installed at the inner middle position of the pump body (3), an impeller (302) is installed at the middle position of the separation plate (303), and an organic sealing stationary ring (304) is installed above the separation plate (303).
4. The intelligent mining self-priming pump with an alarm mechanism according to claim 3, wherein the output end of the pump shaft (202) is rotationally connected with the impeller (302), and the inner surface of the mechanical seal stationary ring (304) is tightly attached to the surface of the pump shaft (202).
5. An intelligent mining self-priming pump with an alarm mechanism according to claim 1, characterized in that a second pressure sensor (501) is mounted above the inside of the water inlet connection chamber (5), and a first flowmeter (502) is mounted in the middle of the inside of the water inlet connection chamber (5).
6. An intelligent mining self-priming pump with an alarm mechanism according to claim 1, characterized in that a third pressure sensor (601) is mounted above the inside of the water outlet connection chamber (6), and a second flowmeter (602) is mounted in the middle of the inside of the water outlet connection chamber (6).
7. The intelligent mining self-priming pump with an alarm mechanism according to claim 1, wherein the first alarm mechanism (11) comprises a first sealing box (1101), a first sensor probe (1102), a second sensor probe (1103), a first water level sensor (1104) and a processor connector (1105), the processor connector (1105) is installed on one side of the first sealing box (1101), the first sensor probe (1102) is installed in the middle of the first sealing box (1101), the first water level sensor (1104) is installed above one side of the first sensor probe (1102), and the second sensor probe (1103) is installed below one side of the first sensor probe (1102).
8. The intelligent mining self-priming pump with an alarm mechanism according to claim 7, wherein the first sensor probe (1102), the second sensor probe (1103) and the first water level sensor (1104) are electrically connected with the processor connector (1105), the first sensor probe (1102) is electrically connected with the first pressure sensor (301), the second sensor probe (1103) is electrically connected with the third pressure sensor (601), and the first water level sensor (1104) is electrically connected with the second flowmeter (602).
9. The intelligent mining self-priming pump with an alarm mechanism according to claim 1, wherein the second alarm mechanism (12) comprises a second sealing box (1201), a temperature sensor (1202), a transmission line connector (1203), a third sensor probe (1204), a second water level sensor (1205) and a buzzer (1206), the temperature sensor (1202) is installed in the second sealing box (1201), the transmission line connector (1203) is installed below the second sealing box (1201), the second water level sensor (1205) is installed on one side of the transmission line connector (1203), the third sensor probe (1204) is installed on one side of the second sealing box (1201), and the buzzer (1206) is installed on the other side of the second sealing box (1201).
10. The intelligent mining self-priming pump with an alarm mechanism according to claim 9, wherein the temperature sensor (1202), the transmission line connector (1203), the third sensor probe (1204) and the second water level sensor (1205) are all electrically connected with the buzzer (1206), the third sensor probe (1204) is electrically connected with the second pressure sensor (501), and the second water level sensor (1205) is electrically connected with the first flowmeter (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211550878.3A CN117823419A (en) | 2022-12-05 | 2022-12-05 | Intelligent mining self-priming pump with alarm mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211550878.3A CN117823419A (en) | 2022-12-05 | 2022-12-05 | Intelligent mining self-priming pump with alarm mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117823419A true CN117823419A (en) | 2024-04-05 |
Family
ID=90516144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211550878.3A Pending CN117823419A (en) | 2022-12-05 | 2022-12-05 | Intelligent mining self-priming pump with alarm mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117823419A (en) |
-
2022
- 2022-12-05 CN CN202211550878.3A patent/CN117823419A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117823419A (en) | Intelligent mining self-priming pump with alarm mechanism | |
| CN210534182U (en) | Water flow indicating alarm | |
| CN216342861U (en) | Circulating water pump convenient to high-efficient water conservation | |
| CN107806418A (en) | Marine vertical internal-mixing self priming pump | |
| US6681801B2 (en) | Pumping station with efficiency increasing and backflow preventing structure | |
| CN205876730U (en) | Agricultural irrigation of detectable formula intelligence machine | |
| CN211059022U (en) | Self-suction reinforced pump for drainage and waterlogging drainage | |
| CN211819925U (en) | High-efficiency energy-saving vertical self-priming pump | |
| CN211778175U (en) | Self-priming pump impeller import sealing device | |
| CN111255704B (en) | Pump protection device and pump assembly | |
| CN212360140U (en) | Water pump operation protection device | |
| CN201003496Y (en) | Modified vertical self-suction pump siphon-proof device | |
| CN201041161Y (en) | Self-controlled self-suction type non-clogging pollution discharge pump | |
| CN112466095A (en) | Household gas alarm | |
| CN220435030U (en) | Electric water conduit device | |
| CN111594427A (en) | Water pump operation protection device | |
| CN214788062U (en) | Dyeing machine anti-corrosion water pump with fluid pH value detection function | |
| CN210509610U (en) | Novel vertical energy-saving self-priming pump | |
| CN209764357U (en) | Detection device for mechanical seal | |
| CN218270996U (en) | Tap water meter detection device | |
| CN213088253U (en) | Energy-efficient self priming pump that can start fast | |
| CN211422936U (en) | Self-priming pump with explosion-proof function | |
| CN215058250U (en) | Self-priming pump with automatic regulating function | |
| CN201902339U (en) | Synchronous self-priming pump for laminated compressor | |
| CN215805371U (en) | Secondary sealing device for horizontal magnetic pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |