CN212928217U - Wisdom frequency conversion single-stage pump - Google Patents
Wisdom frequency conversion single-stage pump Download PDFInfo
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- CN212928217U CN212928217U CN202021542795.6U CN202021542795U CN212928217U CN 212928217 U CN212928217 U CN 212928217U CN 202021542795 U CN202021542795 U CN 202021542795U CN 212928217 U CN212928217 U CN 212928217U
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- pressure sensor
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Abstract
The utility model relates to an intelligent frequency conversion single-stage pump, which comprises a motor, an inlet pressure sensor, a mechanical seal early warning protection device, an outlet pressure sensor, a mechanical seal assembly, an intelligent frequency conversion controller, a flushing pipe group, a PT100 temperature measurement element and the like; the pump suction inlet and the pump discharge outlet are respectively provided with an inlet pressure sensor and an outlet pressure sensor; a mechanical seal assembly is arranged at the joint of the pump cover, the impeller and the pump shaft, the intelligent variable frequency controller is fixed on the motor, a mechanical seal early warning protection device is arranged on the pump cover, and a flushing pipe assembly is arranged between the pump cover and the pump body; the motor bearing is provided with a PT100 temperature measuring element. The utility model discloses pressure control is effectual, and the machine seals there is the early warning, and bearing temperature has the control, receives mechanical seal early warning protection signal through intelligent frequency conversion controller and realizes the fault early warning, realizes the intelligent control of pump through importing and exporting pressure sensor, realizes real-time supervision and the warning to bearing temperature through bearing temperature element, has improved the work efficiency and the reliability of pump.
Description
Technical Field
The utility model relates to a single-stage pump, concretely relates to pressure control is effectual, mechanical seal is effectual, there is early warning protection, bearing temperature have real-time supervision's intelligent frequency conversion single-stage pump.
Background
For the requirement of coping with the heating and ventilation system to the pump frequency conversion, the technical scheme of the main traditional pump + frequency conversion control cabinet of the scheme on the current market has the following main problems:
1. the digitization degree is low: because the traditional relay control is still kept, a large number of master switches, indicator lamps, relays, traditional instruments and the like are used, so that the electric circuit is complicated, difficult to maintain, multiple in potential fault points and low in reliability.
2. The intelligent degree is low: generally, only pressure and frequency are detected, the sensing capability is weak, only basic control can be realized, and data such as flow, electric power and energy efficiency are lost to participate in control decision, so that the analysis and adaptation capability of the equipment is greatly reduced, and intelligent and efficient operation, reliable early warning and remote diagnosis of the equipment are difficult to realize.
3. The failure rate is high and is not easy to be found: once the mechanical seal in the pump is used as a quick-wear part, the damage greatly affects the operation of the system, and no person is present after the mechanical damage to find the fault position.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims to provide a pressure control is effectual, mechanical seal is effectual, have early warning protection, bearing temperature have real-time supervision's intelligent frequency conversion single-stage pump.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a wisdom frequency conversion single-stage pump, wisdom frequency conversion single-stage pump includes motor, import pressure sensor, pump cover, the pump body, pump suction inlet, pump discharge port, impeller, mechanical seal early warning protection device, export pressure sensor, mechanical seal subassembly, pump shaft, intelligent variable frequency controller, washing nest of tubes, PT100 temperature element;
the motor is fixed on the pump cover, the pump cover is connected with the shell, the pump suction inlet and the pump discharge outlet are arranged on the left side and the right side of the pump body, and the pump suction inlet and the pump discharge outlet are respectively provided with an inlet pressure sensor and an outlet pressure sensor; the hub of the impeller is connected with the motor through a pump shaft; a mechanical seal assembly is arranged at the joint of the pump cover, the impeller and the pump shaft, the intelligent variable frequency controller is fixed on the motor, a mechanical seal early warning protection device is arranged on the pump cover, and a flushing pipe assembly is arranged between the pump cover and the pump body; the motor bearing is provided with a PT100 temperature measuring element.
In the embodiment of the present invention: the flush tube assembly includes: the ball valve comprises a conical thread straight-through pipe joint, a stainless steel pipe and a QZ11-DN15 type integral ball valve; the conical thread straight-through pipe joint and the integrated ball valve of the QZ11-DN15 type are positioned at two ends of the stainless steel pipe.
In the embodiment of the present invention: the mechanical seal early warning protection device is a device which is manufactured by Zhenjiang Jiangteng appliances and is of the model number LSTT-10X 1-50.
In the embodiment of the present invention: the mechanical seal assembly comprises a rubber corrugated pipe, a spring, a metal component, a movable ring, a static ring and an L-shaped gasket; the spring is installed in the metal structure, and the metal component is installed in the rubber bellows, and rubber bellows one end pushes up on the impeller, and the other end pushes up on the rotating ring, and the other end of rotating ring pushes up on quiet ring, and the quiet ring outside is arranged in to L type pad, and rubber bellows is the telescopic bellows.
In the embodiment of the present invention: the mechanical seal water leakage protection device comprises an early warning probe and an alarm lamp, wherein the early warning probe is electrically connected to the intelligent variable frequency controller, and the alarm lamp is on when the early warning probe monitors water; the early warning probe is installed in the recess of pump cover, and the alarm lamp is located intelligent variable frequency controller's shell.
In the embodiment of the present invention: the motor is fixed on the pump cover through threaded connection.
In the embodiment of the present invention: and the inlet pressure sensor and the outlet pressure sensor are both connected to the intelligent variable frequency controller.
In the embodiment of the present invention: the PT100 temperature measuring element is connected to the intelligent variable frequency controller.
The utility model discloses an actively advance the effect and lie in: the utility model provides a wisdom frequency conversion single-stage pump has following advantage: the utility model provides a wisdom frequency conversion single-stage pump, pressure control is effectual, and the machine seals there is the early warning, and bearing temperature has the control, and is integrated with intelligent frequency conversion controller through the pump, realizes the trouble early warning through receiving mechanical seal early warning protection signal, realizes the intelligent control of pump through importing and exporting pressure sensor, realizes real-time supervision and the warning to bearing temperature through bearing temperature measuring element, has improved the work efficiency and the reliability of pump.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the mechanical seal assembly of the present invention.
Fig. 3 is a schematic structural view of the water leakage protection device for the middle mechanical seal of the present invention.
Fig. 4 is a schematic structural view of the middle flush tube assembly of the present invention.
The utility model discloses the name that well reference numeral corresponds:
the device comprises a motor 1, an inlet pressure sensor 2, a pump cover 3, a pump body 4, a pump suction inlet 5, a pump discharge outlet 6, an impeller 7, a mechanical seal early warning protection device 8, an outlet pressure sensor 9, a mechanical seal assembly 10, a pump shaft 11, an intelligent variable frequency controller 12, a flushing pipe group 13 and a PT100 temperature measuring element 14;
a groove 301; an early warning probe 801;
a rubber bellows 1001, a spring 1002, a metal member 1003, a movable ring 1004, a stationary ring 1005, and an L-shaped pad 1006;
the conical threaded straight pipe joint 1301, the stainless steel pipe 1302 and the integrated ball valve 1303 of type QZ11-DN 15.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a schematic view of the overall structure of the present invention. As shown in fig. 1: the utility model provides a pair of wisdom frequency conversion single-stage pump, this wisdom frequency conversion single-stage pump include motor 1, import pressure sensor 2, pump cover 3, the pump body 4, pump sunction inlet 5, pump discharge port 6, impeller 7, mechanical seal early warning protection device 8, export pressure sensor 9, mechanical seal subassembly 10, pump shaft 11, intelligent variable frequency controller 12, washing pipe group 13, PT100 temperature element 14.
The motor 1 is fixed on the pump cover 3, the pump cover 3 is connected with the shell 4, the pump suction inlet 5 and the pump discharge outlet 6 are arranged at the left side and the right side of the pump body 4, and the pump suction inlet 5 and the pump discharge outlet 6 are respectively provided with the inlet pressure sensor 2 and the outlet pressure sensor 9; the hub of the impeller 7 is connected with the motor 1 through a pump shaft 11; a mechanical seal assembly is arranged at the joint of the pump cover 3, the impeller 7 and the pump shaft 11, the intelligent frequency conversion controller 12 is fixed on the motor 1, the mechanical seal early warning protection device 8 is arranged on the pump cover 3, and a flushing pipe assembly 13 is arranged between the pump cover 3 and the pump body 4; the pump cover is provided with a machine seal flushing hole, and water is led from the outlet of the pump body to the position of the pump cover flushing hole through an external flushing pipe to carry out machine seal flushing and cooling. The motor bearing is provided with a PT100 temperature measuring element 14.
The mechanical seal early warning protection device 8 is a device which is manufactured by Zhenjiangjiang electric appliances and has the model number of LSTT-10X 1-50.
Fig. 2 is a schematic structural diagram of the mechanical seal assembly of the present invention. As shown in fig. 2: the mechanical seal assembly 10 comprises a rubber bellows 1001, a spring 1002, a metal member 1003, a movable ring 1004, a stationary ring 1005 and an L-shaped pad 1006; the spring 1002 is installed in the metal structure 1003, the metal structure 1003 is installed in the rubber bellows 1001, one end of the rubber bellows 1001 is pressed against the impeller, the other end of the rubber bellows 1001 is pressed against the moving ring 1004, the other end of the moving ring 1004 is pressed against the static ring 1005, the L-shaped pad 1006 is arranged outside the static ring 1005, and the rubber bellows 1001 is a telescopic bellows. In a specific implementation, the motor 1 may be fixed to the pump cover 3 by a screw connection.
The inlet pressure sensor 2 and the outlet pressure sensor 9 are both connected to the intelligent frequency conversion controller 12, and transmit 4-20mA analog quantity signals to the frequency conversion controller.
The PT100 temperature measuring element is connected to the intelligent variable frequency controller 12 and transmits 4-20mA analog quantity signals to the variable frequency controller.
The utility model provides an intelligence variable frequency controller 12 adopts the model that reaches the production of electric shares limited company in the new time of shanghai to be AS170-NT-4T 0037's variable frequency controller.
Fig. 3 is a schematic structural view of the water leakage protection device for the middle mechanical seal of the present invention. As shown in fig. 3: the mechanical seal water leakage protection device 8 in the utility model can also be of the following structure, comprising an early warning probe 801 and an alarm lamp, wherein the early warning probe 801 is electrically connected with the intelligent variable frequency controller, and the alarm lamp is on when the early warning probe 801 monitors water; the early warning probe 801 is installed in the groove 301 of the pump cover 3, and the alarm lamp is located on the shell of the intelligent variable frequency controller 12. The early warning probe is an electrode with a certain resistance value, and the early warning probe recognizes a signal to generate an alarm through the intelligent variable frequency controller after being connected with liquid such as water. The utility model discloses a mechanical seal early warning protection device 8 adopts the model that Zhenjiang Jiangtang Teng electrical appliances company Limited produced to be LSTT-10X 1-50's device.
The utility model provides a motor 1 generally fixes on pump cover 3 through threaded connection, and 8 electricity of mechanical seal early warning protection device are connected on intelligent frequency conversion controller 12. Once the mechanical seal is leaked, a real-time signal is fed back to the variable frequency controller 12, and an early warning signal is sent out. The dynamic ring rotates at high speed with the impeller, and the static ring is fixed on the pump cover. The movable ring and the static ring form end face seal through a friction pair, and the purposes of preventing liquid in the pump from leaking and preventing air outside the pump from leaking into the pump are achieved. The pump cover 3 is provided with a mechanical seal early warning protection 7 (see fig. 3), and once the mechanical seal leaks, a real-time signal is fed back to the intelligent frequency conversion controller 12 to send out an early warning signal.
The utility model provides a be equipped with between pump cover 3 and the pump body 4 and wash pipe subassembly 13 (see fig. 4) and be used for mechanical seal washing and cooling, mechanical seal is long-term to be operated and is generated heat seriously, and this subassembly can play cooling effect, and especially when the medium temperature is higher, can prolong mechanical seal life greatly. The flushing pipe assembly comprises a conical threaded straight-through pipe joint 1301, a stainless steel pipe 1302, and a QZ11-DN15 type integral ball valve 1303. A conical threaded straight pipe joint 1301 and an integral ball valve 1303 of type QZ11-DN15 are positioned at two ends of the stainless steel pipe 1302.
The utility model provides a position of installation bearing is equipped with PT100 temperature element 14 in motor 1, and PT100 temperature element 14 is connected to intelligent variable frequency controller 12, transmits 4-20mA analog signal, can give intelligent variable frequency controller 12 to bearing temperature real-time transfer to show on intelligent variable frequency controller 12's display panel. The utility model discloses a PT100 thermometric element 14 adopts the model of Shenzhen platinum microelectronics limited company production to be PWZD's device.
The pump suction inlet 5 and the pump discharge outlet 6 of the utility model are arranged at the left and right sides of the pump body 3; the pump suction inlet 5 is provided with an inlet pressure sensor 2; the outlet of the pump is provided with an outlet pressure sensor 9, the two pressure sensors are connected to an intelligent variable frequency controller 12, 4-20mA analog quantity signals are transmitted, the pressure values of the inlet and the outlet of the pump can be transmitted to the intelligent variable frequency controller 12 in real time, and the pressure values are displayed on a display panel of the intelligent variable frequency controller 12. The inlet pressure sensor 2 and the outlet pressure sensor 9 of the utility model adopt the MBS1900 device which is produced by the Danfoss group.
Following the utility model discloses a simple explanation is done to the theory of operation of intelligence single-stage pump:
the intelligent frequency conversion controller 12 is started, the intelligent frequency conversion controller 12 controls the motor 1 to start in a frequency conversion mode, the impeller rotates at a high speed under the driving of the motor, and the pump head (pressure) generated by applying work to the liquid conveyed from the pump suction inlet 5 is discharged through the pump discharge outlet 6. The whole process of converting the mechanical energy of the motor into the energy (kinetic energy, pressure energy and potential energy) of the liquid is completed, and the liquid is changed from low pressure to high pressure; from a low position to a high position; and for long distance transport purposes.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a wisdom frequency conversion single-stage pump which characterized in that: the intelligent variable-frequency single-stage pump comprises a motor, an inlet pressure sensor, a pump cover, a pump body, a pump suction inlet, a pump discharge outlet, an impeller, a mechanical seal early warning protection device, an outlet pressure sensor, a mechanical seal assembly, a pump shaft, an intelligent variable-frequency controller, a flushing pipe group and a PT100 temperature measuring element;
the motor is fixed on the pump cover, the pump cover is connected with the shell, the pump suction inlet and the pump discharge outlet are arranged on the left side and the right side of the pump body, and the pump suction inlet and the pump discharge outlet are respectively provided with an inlet pressure sensor and an outlet pressure sensor; the hub of the impeller is connected with the motor through a pump shaft; a mechanical seal assembly is arranged at the joint of the pump cover, the impeller and the pump shaft, the intelligent variable frequency controller is fixed on the motor, a mechanical seal early warning protection device is arranged on the pump cover, and a flushing pipe assembly is arranged between the pump cover and the pump body; the motor bearing is provided with a PT100 temperature measuring element.
2. The intelligent variable frequency single stage pump of claim 1 wherein the flush tube assembly comprises: the ball valve comprises a conical thread straight-through pipe joint, a stainless steel pipe and a QZ11-DN15 type integral ball valve; the conical thread straight-through pipe joint and the integrated ball valve of the QZ11-DN15 type are positioned at two ends of the stainless steel pipe.
3. The intelligent variable-frequency single-stage pump according to claim 1, wherein the mechanical seal pre-warning protection device is a device manufactured by Zhenjiang Jiangteng appliances ltd and having a model number of LSTT-10X 1-50.
4. The intelligent variable-frequency single-stage pump according to claim 1, wherein the mechanical seal assembly comprises a rubber bellows, a spring, a metal member, a moving ring, a stationary ring, an L-shaped gasket; the spring is installed in the metal structure, and the metal component is installed in the rubber bellows, and rubber bellows one end pushes up on the impeller, and the other end pushes up on the rotating ring, and the other end of rotating ring pushes up on quiet ring, and the quiet ring outside is arranged in to L type pad, and rubber bellows is the telescopic bellows.
5. The intelligent variable-frequency single-stage pump according to claim 1, wherein the mechanical seal water leakage protection device comprises an early warning probe and an alarm lamp, the early warning probe is electrically connected to the intelligent variable-frequency controller, and the alarm lamp is on when the early warning probe monitors water; the early warning probe is installed in the recess of pump cover, and the alarm lamp is located intelligent variable frequency controller's shell.
6. The intelligent variable-frequency single-stage pump according to claim 1, wherein the motor is fixed on the pump cover through a threaded connection.
7. The intelligent variable-frequency single-stage pump according to claim 1, wherein the inlet pressure sensor and the outlet pressure sensor are both connected to the intelligent variable-frequency controller.
8. The intelligent variable-frequency single-stage pump according to claim 1, wherein the PT100 temperature measuring element is connected to the intelligent variable-frequency controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542795.6U CN212928217U (en) | 2020-07-29 | 2020-07-29 | Wisdom frequency conversion single-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542795.6U CN212928217U (en) | 2020-07-29 | 2020-07-29 | Wisdom frequency conversion single-stage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928217U true CN212928217U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021542795.6U Active CN212928217U (en) | 2020-07-29 | 2020-07-29 | Wisdom frequency conversion single-stage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928217U (en) |
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2020
- 2020-07-29 CN CN202021542795.6U patent/CN212928217U/en active Active
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