CN212535964U - Constant pressure pump - Google Patents
Constant pressure pump Download PDFInfo
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- CN212535964U CN212535964U CN202020348137.7U CN202020348137U CN212535964U CN 212535964 U CN212535964 U CN 212535964U CN 202020348137 U CN202020348137 U CN 202020348137U CN 212535964 U CN212535964 U CN 212535964U
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Abstract
A constant pressure pump relates to the technical field of pumps. It comprises a water pump, a variable frequency motor, a controller, a power supply, a pressure sensing device and a thermometer, wherein the bottom end of the water pump is connected with the variable frequency motor, the pressure sensing device is arranged at the water outlet end of the water pump and is connected with the controller, one end of the controller is connected with the power supply, the other end of the controller is connected with the variable frequency motor, the thermometer is connected with the controller, the pressure sensing device comprises an upper base, a lower base, an adjusting screw, a cushion block, a pressure sensing film and a rubber diaphragm, the bottom of the upper base is connected with the lower base, the inner side of the lower base is provided with the rubber diaphragm, the upper end of the rubber diaphragm is provided with the pressure sensing film, so that the utility model relates to a constant pressure pump which has stable structure, the output rotating speed of the motor can be automatically adjusted according to different pressures, the booster pump with constant output pressure of the water pump is achieved, and the service life of the water inlet device is prolonged.
Description
Technical Field
The utility model relates to a pump technical field, concretely design constant pressure pump.
Background
Diaphragm pumps, also known as control pumps, are the main type of actuator that is operated by power to vary the fluid flow by receiving a control signal from a regulating control unit. The diaphragm pump is used in the control process to receive the control signal of the regulator or the computer and change the flow rate of the regulated medium to maintain the regulated parameters in the required range, so as to realize the automation of the production process. If the automatic adjustment system is compared to a manual adjustment process, the detection unit is the human eye and the adjustment control unit is the human brain, the execution units, the membrane pumps, are the human hand and foot.
At present, common water purifiers in the market are divided into a pipe pressure type (a water source is municipal tap water) and a self-suction type (no water inlet pressure or small water inlet pressure). The pipe pressure type water purifier is mostly used in places with municipal tap water in cities, while the self-absorption type water purifier is mostly used in rural areas, especially in backward areas without tap water in mountainous areas, or the requirement that the water pressure of the municipal tap water cannot be met due to poor tap water conditions. And as logistics develops, both models can be applied in opposite scenes by channel conflict. However, when the pipe-press type water purifier is used in areas without tap water or with low water pressure, water cannot be produced or the water production amount is seriously insufficient. When the self-priming water purifier is used under a municipal tap water source, the working pressure of the water purifier is ultrahigh, the water leakage of the whole water purifier is possibly bad, and the service life of an RO (reverse osmosis) membrane is influenced.
Most domestic buildings still have secondary water supply, are equipped with the water tank at the floor, and the water receiving pipe is advanced every family and is carved every moment, so the great phenomenon of water pressure difference can appear in the different floors of same building, and this kind of phenomenon uses the water purifier at different floors then can lead to the pressure difference of intaking of water purifier big, can appear higher floor pressure not enough, and lower floor pressure is on the high side. And then make the water purifier when higher floor during operation, the flow is not enough, and system water inefficiency and power consumptive, and lower floor uses the water purifier can lead to operating pressure to be on the high side, influences water purifier life, and more serious probably leads to the too high bad phenomenon of leaking of complete machine pressure appearance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a constant pressure pump, its stable in structure can carry out the regulation motor output speed by oneself according to different pressure, reaches the booster pump that water pump output pressure is invariable, prolongs the life of water intaking ware.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it contains water pump 1, inverter motor 2, controller 3, power 4, pressure-sensitive device 5, thermometer 6, and the bottom of water pump 1 is connected with inverter motor 2, and the play water end of water pump 1 is provided with pressure-sensitive device 5, and pressure-sensitive device 5 is connected with controller 3, and the one end of controller 3 is connected with power 4, and the other end of controller 3 is connected with inverter motor 2, and thermometer 6 is connected with the controller.
Further, the pressure sensing device 5 includes an upper base 51, a lower base 52, an adjusting screw 53, a cushion block 54, a pressure sensing membrane 55 and a rubber membrane 56, the bottom of the upper base 51 is connected with the lower base 52, the inner side of the lower base 52 is provided with the rubber membrane 56, the upper end of the rubber membrane 56 is provided with the pressure sensing membrane 55, the upper end of the pressure sensing membrane 55 is provided with the cushion block 54, the upper end of the cushion block 54 is in contact with the adjusting screw 53, the adjusting screw 53 is connected with the upper base 51, and the pressure sensing membrane 55 is connected with the controller 3.
Further, when the temperature value collected by the thermometer 6 is five degrees, the controller 3 keeps the outlet water pressure constant in a preset high working pressure state according to the feedback signal, when the temperature is forty-five degrees, the controller 3 keeps the outlet water pressure constant in a preset high working state according to the feedback signal, and when the temperature is more than five degrees and less than T and less than forty-five degrees, the outlet water pressure linearly changes between a preset high value and a preset low value.
Furthermore, the pressure sensing device 5 is connected with the water outlet pipeline of the water pump 1 in a split type or is connected with the water inlet end of the water pump in an integrated manner.
Further, the pad 54 is a hard pad.
Further, the upper base 51 and the lower base 52 are in interference fit connection with the rubber diaphragm 56. Can bear water pressure of more than 3.0 MPa.
Further, the lower base 52 is connected to the water outlet end of the water pump 1.
The utility model discloses a theory of operation: the constant pressure pump has the advantages that the upper shell and the lower shell of the device are in interference tight fit connection with the elastic diaphragm according to the position, and can bear high water pressure; the cushion is the stereoplasm material cushion, its hardness is higher, and is not fragile, the bottom and the contact of forced induction module of cushion, the pressure of forced induction module response water pump play water end, then give the controller with the pressure transmission who senses, the controller can be adjusted inverter motor rotational speed according to pressure-sensitive device's feedback signal, make the export pressure of water pump be in the default operation all the time, different pressure carry out the self-regulated inverter motor output rotational speed, reach water pump output pressure constancy.
After the technical scheme is adopted, the utility model discloses beneficial effect does: with this utility model a constant pressure pump, its stable in structure can carry out the regulation motor output speed by oneself according to different pressure, reaches the invariable booster pump of water pump output pressure, prolongs the life of water intaking ware.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the pressure sensing device of the present invention.
Description of reference numerals: the device comprises a water pump 1, a variable frequency motor 2, a controller 3, a power supply 4, a pressure sensing device 5, a thermometer 6, an upper base 51, a lower base 52, an adjusting screw 53, a cushion block 54, a pressure sensing film 55 and a rubber diaphragm 56.
Detailed Description
Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: it contains water pump 1, inverter motor 2, controller 3, power 4, pressure-sensitive device 5, thermometer 6, and the bottom of water pump 1 is connected with inverter motor 2, and the play water end of water pump 1 is provided with pressure-sensitive device 5, and pressure-sensitive device 5 is connected with controller 3, and the one end of controller 3 is connected with power 4, and the other end of controller 3 is connected with inverter motor 2, and thermometer 6 is connected with the controller.
The pressure sensing device 5 comprises an upper base 51, a lower base 52, an adjusting screw 53, a cushion block 54, a pressure sensing film 55 and a rubber diaphragm 56, wherein the bottom of the upper base 51 is connected with the lower base 52, the rubber diaphragm 56 is arranged on the inner side of the lower base 52, the pressure sensing film 55 is arranged at the upper end of the rubber diaphragm 56, the cushion block 54 is arranged at the upper end of the pressure sensing film 55, the upper end of the cushion block 54 is in contact with the adjusting screw 53, the adjusting screw 53 is connected with the upper base 51, and the pressure sensing film 55 is connected with the controller 3.
When the temperature value collected by the thermometer 6 is five degrees, the controller 3 keeps the water outlet pressure constant in a preset high working pressure state according to the feedback signal, when the temperature is forty-five degrees, the controller 3 keeps the water outlet pressure constant in a preset high working state according to the feedback signal, and when the temperature is more than five degrees and less than T and less than forty-five degrees, the water outlet pressure linearly changes between a high value and a low value of the preset pressure.
The pressure induction device 5 is connected with the water outlet pipeline of the water pump 1 in a split mode or is connected with the water inlet end of the water pump in an integrated mode.
The cushion block 54 is a hard cushion block.
The upper base 51 and the lower base 52 are connected with the rubber diaphragm 56 in an interference fit manner. Can bear water pressure of more than 3.0 MPa.
The lower base 52 is connected with the water outlet end of the water pump 1.
The utility model discloses a theory of operation: the constant pressure pump has the advantages that the upper shell and the lower shell of the device are in interference tight fit connection with the elastic diaphragm according to the position, and can bear high water pressure; the cushion is the stereoplasm material cushion, its hardness is higher, and is not fragile, the bottom and the contact of forced induction module of cushion, the pressure of forced induction module response water pump play water end, then give the controller with the pressure transmission who senses, the controller can be adjusted inverter motor rotational speed according to pressure-sensitive device's feedback signal, make the export pressure of water pump be in the default operation all the time, different pressure carry out the self-regulated inverter motor output rotational speed, reach water pump output pressure constancy.
After the technical scheme is adopted, the utility model discloses beneficial effect does: with this utility model a constant pressure pump, its stable in structure can carry out the regulation motor output speed by oneself according to different pressure, reaches the invariable booster pump of water pump output pressure, prolongs the life of water intaking ware.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A constant pressure pump characterized by: the water pump comprises a water pump (1), a variable frequency motor (2), a controller (3), a power supply (4), a pressure sensing device (5) and a thermometer (6), wherein the bottom end of the water pump (1) is connected with the variable frequency motor (2), the water outlet end of the water pump (1) is provided with the pressure sensing device (5), the pressure sensing device (5) is connected with the controller (3), one end of the controller (3) is connected with the power supply (4), the other end of the controller (3) is connected with the variable frequency motor (2), and the thermometer (6) is connected with the controller.
2. The constant pressure pump according to claim 1, wherein: the pressure sensing device (5) comprises an upper base (51), a lower base (52), an adjusting screw (53), a cushion block (54), a pressure sensing film (55) and a rubber film (56), wherein the bottom of the upper base (51) is connected with the lower base (52), the inner side of the lower base (52) is provided with the rubber film (56), the upper end of the rubber film (56) is provided with the pressure sensing film (55), the upper end of the pressure sensing film (55) is provided with the cushion block (54), the upper end of the cushion block (54) is in contact with the adjusting screw (53), the adjusting screw (53) is connected with the upper base (51), and the pressure sensing film (55) is connected with the controller (3).
3. The constant pressure pump according to claim 1, wherein: when the temperature value collected by the thermometer (6) is five degrees, the controller (3) keeps the water outlet pressure constant in a preset high working pressure state according to the feedback signal, when the temperature is forty-five degrees, the controller (3) keeps the water outlet pressure constant in a preset high working state according to the feedback signal, and when the temperature is more than five degrees and less than T and less than forty-five degrees, the water outlet pressure linearly changes between a preset pressure high value and a preset pressure low value.
4. The constant pressure pump according to claim 1, wherein: the pressure sensing device (5) is connected with a water outlet pipeline of the water pump (1) in a split mode or is connected with a water inlet end of the water pump in an integrated mode.
5. A constant pressure pump according to claim 2, wherein: the cushion block (54) is made of hard materials.
6. A constant pressure pump according to claim 2, wherein: the upper base (51) and the lower base (52) are in interference tight fit connection with the rubber diaphragm (56) and can bear water pressure of more than 3.0 MPa.
7. A constant pressure pump according to claim 2, wherein: the lower base (52) is connected with the water outlet end of the water pump (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020348137.7U CN212535964U (en) | 2020-03-19 | 2020-03-19 | Constant pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020348137.7U CN212535964U (en) | 2020-03-19 | 2020-03-19 | Constant pressure pump |
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| Publication Number | Publication Date |
|---|---|
| CN212535964U true CN212535964U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020348137.7U Active CN212535964U (en) | 2020-03-19 | 2020-03-19 | Constant pressure pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017303A (en) * | 2021-11-09 | 2022-02-08 | 华工(江门)机电有限公司 | Variable-frequency capacity-increasing control method of water pump |
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2020
- 2020-03-19 CN CN202020348137.7U patent/CN212535964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017303A (en) * | 2021-11-09 | 2022-02-08 | 华工(江门)机电有限公司 | Variable-frequency capacity-increasing control method of water pump |
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