Variable-frequency constant-pressure water supply equipment
By setting up water tanks with different capacity in the variable frequency constant voltage water supply equipment, flexible adjustments are achieved when water consumption changes, water pump damage and water quality pollution are avoided, and the problems of slow response and inability to sleep in existing equipment are solved. ,延长了设备的使用寿命并提高了供水效果。
Patent Information
- Application Number
- CN202420923203.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing variable frequency constant pressure water supply equipment has a slow reaction when the water consumption changes suddenly, and the machine cannot be completely dormant when the user uses less water, resulting in damage to the water pump and water valve.
A variable frequency constant pressure water supply equipment is designed, and the first water tank and the second water tank with different capacity are connected in parallel, and the first water tank and the water pump are used when the water consumption is large, and the second water tank and the water pump are used when the water consumption is small. , avoid the continuous operation of a single water tank and water pump; at the same time, filter parts are installed in the water inlet pipe for water quality filtration to ensure the stability and cleanliness of the water supply system.
It effectively avoids damage to the water pump, ensures the stable operation of the water supply system and the cleanliness of the water quality, extends the service life of the water pump, and improves the water supply effect.
Smart Images
Figure CN222183535U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water supply equipment, in particular to variable frequency constant pressure water supply equipment. Background Art
[0002] The variable frequency constant pressure water supply equipment is a new type of energy-saving water supply equipment. It uses variable frequency technology to adjust the operation of the water pump to achieve water supply to users. It is a mechatronic energy-saving water supply device composed of a frequency converter and a motor water pump. The variable frequency constant pressure water supply equipment uses the user's water flow rate as the setting parameter, and automatically controls the output frequency of the frequency converter through a microcomputer to adjust the speed of the water pump motor, so as to achieve closed-loop regulation of the user's pipe network water pressure, so that the water supply system automatically maintains constant pressure at the set pressure value. However, there are still some shortcomings in its actual use. The existing variable frequency constant pressure water supply equipment reacts slowly when the water consumption suddenly changes, and when the user's water consumption is low, the machine cannot be completely in a dormant state, resulting in the equipment always being out of a dormant state during the water supply process, causing greater damage to the water pump and water valve. Utility Model Content
[0003] The main purpose of the utility model is to provide a variable frequency constant pressure water supply device, which is intended to adjust the device according to the water consumption of the user to avoid damage caused by the continuous operation of the device.
[0004] In order to achieve the above-mentioned purpose, the variable frequency constant pressure water supply equipment proposed by the utility model comprises:
[0005] A water tank assembly, the water tank comprising a first water tank and a second water tank, the first water tank and the second water tank are connected in parallel via a connecting pipe, the water inlet ends of the first water tank and the second water tank are connected to a water inlet pipe, and the capacity of the first water tank is greater than that of the second water tank;
[0006] A water pump assembly, wherein the water pump comprises a first water pump and a second water pump, wherein the first water pump and the second water pump are connected to the water outlet ends of the first water tank and the second water tank respectively, and one end of the first water pump and the second water pump facing away from the water tank assembly is connected to a water outlet pipe through a three-way valve;
[0007] A frequency converter, the frequency converter electrically connecting the first water pump and the second water pump to adjust the rotation speeds of the first water pump and the second water pump;
[0008] A filter element is arranged on the water inlet pipe, and the filter element comprises a filter channel and a slag discharge channel. Both ends of the filter channel are connected to the water inlet pipe, and the slag discharge channel is connected to the filter channel at an angle.
[0009] In one embodiment, the filter element further comprises a filter plate, and the filter plate is arranged at one end of the filter channel away from the slag discharge channel, so that impurities in the filter pipe can enter the slag discharge channel.
[0010] In one embodiment, the filter plate is arranged in an oblique direction on the filter channel.
[0011] In one embodiment, a slag discharge valve is provided on the slag discharge channel.
[0012] In one embodiment, the variable frequency constant pressure water supply equipment further includes a sterilization component, and the sterilization component is disposed at the top of the inner cavity of the first water tank.
[0013] In one embodiment, the variable frequency constant pressure water supply equipment further includes a liquid level sensor, and the liquid level sensor is disposed on the inner wall of the first water tank to detect the liquid level height in the first water tank.
[0014] In one embodiment, the variable frequency constant pressure water supply equipment further includes a pressure gauge, and the pressure gauge is arranged on the water outlet pipe.
[0015] In one embodiment, a cooling fan is provided on the rear housing of the inverter, and a protective housing is provided on the outer side of the inverter.
[0016] In one embodiment, the variable frequency constant pressure water supply equipment further includes a water quality detector, and the water quality detector is arranged on the water outlet pipe.
[0017] In one embodiment, the first water tank is disposed above the second water tank, and the bottom end of the first water tank is connected to the top end of the second water tank via a connecting pipe, and a solenoid valve is disposed on the connecting pipe.
[0018] The technical solution of the utility model is to set up a first water tank and a second water tank with different capacities, connect the first water tank and the second water tank in parallel and control them through a valve, and supply water through the first water tank and the first water pump when the user's water consumption is large, and supply water through the second water tank and the second water pump when the user's water consumption is small, thus avoiding damage to the water pump due to continuous operation when there is only one water tank and one water pump. In addition, a filter is set in the water inlet pipe to filter the water before entering the first water tank and the second water tank to remove impurities in the water, thereby avoiding these impurities from being subsequently blocked in the pipeline to pollute the water quality and affect the flow in the pipeline, thereby affecting the water supply effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 A structural schematic diagram of an embodiment of a variable frequency constant pressure water supply device provided by the utility model;
[0021] Figure 2 for Figure 1 Structural diagram of the filter element position.
[0022] Description of Figure Numbers:
[0023] 1000. Variable frequency constant pressure water supply equipment; 1. Water tank assembly; 11. First water tank; 12. Second water tank; 2. Water pump assembly; 21. First water pump; 22. Second water pump; 3. Filter element; 31. Filter channel; 32. Slag discharge channel; 33. Filter plate; 4. Slag discharge valve; 5. Gate valve; 6. Sterilization assembly; 7. Liquid level sensor; 8. Pressure gauge.
[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0028] The variable frequency constant pressure water supply equipment is a new type of energy-saving water supply equipment. It uses variable frequency technology to adjust the operation of the water pump to achieve water supply to users. It is a mechatronic energy-saving water supply device composed of a frequency converter and a motor water pump. The variable frequency constant pressure water supply equipment uses the user's water flow rate as the setting parameter, and automatically controls the output frequency of the frequency converter through a microcomputer to adjust the speed of the water pump motor, so as to achieve closed-loop regulation of the user's pipe network water pressure, so that the water supply system automatically maintains constant pressure at the set pressure value. However, there are still some shortcomings in its actual use. The existing variable frequency constant pressure water supply equipment reacts slowly when the water consumption suddenly changes, and when the user's water consumption is low, the machine cannot be completely in a dormant state, resulting in the equipment always being out of a dormant state during the water supply process, causing greater damage to the water pump and water valve.
[0029] In order to solve the above problems, the utility model proposes a variable frequency constant pressure water supply device 1000, including a water tank assembly 1, a water pump assembly 2, a frequency converter and a filter element 3, the water tank includes a first water tank 11 and a second water tank 12, the first water tank 11 and the second water tank 12 are connected in parallel through a pipeline, the water inlet ends of the first water tank 11 and the second water tank 12 are connected to the water inlet pipe, and the capacity of the first water tank 11 is greater than that of the second water tank 12; the water pump includes a first water pump 21 and a second water pump 22, the first water pump 21 and the second water pump 22 are connected in parallel through a pipeline, and the first water pump 21 and the second water pump 22 are connected in parallel through a pipeline, and the first water tank 11 and the second water tank 12 are connected to the water inlet pipe, and the capacity of the first water tank 11 is greater than that of the second water tank 12; the water pump includes a first water pump 21 and a second water pump 22, and the first water pump 21 and the second water pump 22 are connected in parallel through a pipeline. 22 are respectively connected to the water outlet ends of the first water tank 11 and the second water tank 12, and the ends of the first water pump 21 and the second water pump 22 facing away from the water tank assembly 1 are connected to the water outlet pipe through a three-way valve; the frequency converter electrically connects the first water pump 21 and the second water pump 22 to adjust the rotation speed of the first water pump 21 and the second water pump 22; the filter element 3 is arranged on the water inlet pipe, and the filter element 3 includes a filter channel 31 and a slag discharge channel 32, both ends of the filter channel 31 are connected to the water inlet pipe, and the slag discharge channel 32 is connected to the filter channel 31 at an angle.
[0030] The technical solution of the utility model is to set a first water tank 11 and a second water tank 12 with different capacities, connect the first water tank 11 and the second water tank 12 in parallel and control them through a valve, and supply water through the first water tank 11 and the first water pump 21 when the user's water consumption is large, and supply water through the second water tank 12 and the second water pump 22 when the user's water consumption is small, thereby avoiding damage to the water pump caused by continuous operation when there is only one water tank and one water pump. In addition, by setting a filter element 3 in the water inlet pipe, the water before entering the first water tank 11 and the second water tank 12 is filtered to remove impurities in the water, so as to avoid these impurities from being blocked in the pipeline and polluting the water quality and affecting the flow in the pipeline, thereby affecting the water supply effect.
[0031] In an optional embodiment, in order to ensure the filtering effect of the filter element 3 on impurities, the filter element 3 also includes a filter plate 33, and the filter plate 33 is arranged at one end of the filter channel 31 away from the slag discharge channel 32, so that impurities in the filter pipe can enter the slag discharge channel 32. Optionally, a filter net or a columnar filter structure with a porous structure can be arranged in the filter channel 31 of the filter element 3 to block impurities in the water for filtering. In this embodiment, in order to facilitate the discharge of impurities filtered by the filter element 3 from the pipeline, a filter plate 33 is arranged in the filter channel 31 for filtering, and a filter net can also be connected and fixed to the side of the filter plate 33 facing the slag discharge channel 32 for filtering, so that impurities in the water can be blocked by the filter plate 33 above the slag discharge channel 32, and the impurities fall into the slag discharge channel 32 under the action of their own gravity. The slag discharge channel 32 can be provided with a sufficient length to accommodate impurities. Optionally, in order to facilitate the regular cleaning of impurities in the slag discharge channel 32, a slag discharge valve 4 is provided on the slag discharge channel 32. Please refer to Figure 1 and Figure 2 A slag discharge valve 4 can be set at the bottom end of the slag discharge channel 32 to control the on and off of the slag discharge channel 32. Under normal circumstances, the slag discharge valve 4 is in a closed state so that the variable frequency constant pressure water supply equipment 1000 is sealed to ensure normal water supply. When it is necessary to clean the impurities in the slag discharge channel 32, the slag discharge valve 4 at the bottom is opened to discharge the impurities in the slag discharge channel 32 with the water flow to ensure the cleanliness of the pipeline. After the slag discharge is completed, the slag discharge valve 4 is closed so that the variable frequency constant pressure water supply equipment 1000 continues to supply water. Furthermore, in order to realize slag discharge of the variable frequency constant pressure water supply equipment 1000 without stopping the machine, a gate valve 5 can be set in the slag discharge channel 32 at a position a certain distance above the slag discharge valve 4. When slag discharge is required, the upper gate valve 5 is closed to keep the pipeline of the variable frequency constant pressure water supply equipment 1000 closed, and then the lower slag discharge valve 4 is opened to discharge impurities in the section of the pipeline between the gate valve 5 and the slag discharge valve 4. This can discharge impurities in the slag discharge channel 32 without affecting the normal water supply of the variable frequency constant pressure water supply equipment 1000, thereby ensuring the water supply effect of the variable frequency constant pressure water supply equipment 1000.
[0032] In an optional embodiment, in order to disinfect the water of the variable frequency constant pressure water supply device 1000, the variable frequency constant pressure water supply device 1000 further includes a sterilization component 6, and the sterilization component 6 is arranged at the top of the inner cavity of the water tank. Figure 1 The sterilization component 6 is arranged at the top of the inner cavity of the first water tank 11 to sterilize the water inside the first water tank 11. Optionally, the sterilization component 6 can be an ultraviolet sterilizer, which sterilizes the water below by emitting ultraviolet rays to ensure the safety of the water source supplied by the variable frequency constant pressure water supply equipment 1000.
[0033] In an optional embodiment, in order to facilitate timely addition of water to the first water tank 11, the variable frequency constant pressure water supply device 1000 further includes a liquid level sensor 7, which is arranged on the inner wall of the first water tank 11 to detect the liquid level height in the first water tank 11. Figure 1 The liquid level in the first water tank 11 is detected by the liquid level sensor 7. When the liquid level in the first water tank 11 is lower than the position of the liquid level sensor 7, the liquid level sensor 7 sends a signal to the controller, and the controller sends an electrical signal to open the valve at one end of the water inlet pipe so that the water in the water inlet pipe can flow into the first water tank 11, thereby replenishing the water in the first water tank 11 in time.
[0034] In an optional embodiment, in order to detect the water pressure at one end of the water outlet pipe, the variable frequency constant pressure water supply equipment 1000 further includes a pressure gauge 8, and the pressure gauge 8 is arranged on the water outlet pipe. The water in the first water tank 11 and the second water tank 12 is supplied to the user through the water outlet pipe. By arranging a pressure gauge 8 at one end of the water outlet pipe, the user's water consumption can be detected to a certain extent. When the detection pressure of the pressure gauge 8 is large, it means that the water pressure in the water outlet pipe is large and the user's water consumption is large. At this time, water is supplied to the user through the first water tank 11 and the first water pump 21; when the detection pressure of the pressure gauge 8 is small, the user's water demand is small, and the first water pump 21 can be stopped to have a cooling effect for a period of time to avoid the first water pump 21 from being continuously operated and caused by high temperature damage. Water is supplied to the user through the second water tank 12 and the second water pump 22. In this way, the first water pump 21 and the second water pump 22 are alternately operated when the user's water demand is large and small, so that the first water pump 21 and the second water pump 22 can have sufficient cooling time to avoid damage caused by continuous operation, thereby extending the service life of the first water pump 21 and the second water pump 22.
[0035] In an optional embodiment, in order to protect and dissipate heat for the frequency converter, a cooling fan is provided on the rear shell of the frequency converter, and a protective shell is provided on the outside of the frequency converter. The heat generated by the frequency converter during operation is taken away by the cooling fan through wind force to dissipate heat, thereby ensuring the normal operation of the frequency converter. At the same time, in order to reduce the external dust and other interferences from entering the frequency converter and affecting its normal operation, a protective shell is installed on the outside of the frequency converter to protect the frequency converter, reduce the influence of external interferences on the normal operation of the frequency converter, ensure the normal operation of the frequency converter, and thus ensure the normal water supply of the variable frequency constant pressure water supply equipment 1000.
[0036] In an optional embodiment, in order to further detect the water source in the variable frequency constant pressure water supply device 1000, the variable frequency constant pressure water supply device 1000 also includes a water quality detector, which is arranged on the water outlet pipe. The water quality at one end of the water outlet pipe is detected by the water quality detector, so as to timely understand the water quality in the variable frequency constant pressure water supply device 1000, and detect and feedback the filtering effect of the filter element 3, so that the operator can replace the filter element 3 in time or change other types of filter elements 3 to improve the filtering effect and improve the water quality supplied to the user end.
[0037] In an optional embodiment, in order to facilitate the replenishment of water in the second water tank 12, the first water tank 11 is arranged above the second water tank 12, and the bottom end of the first water tank 11 is connected to the top end of the second water tank 12 through a connecting pipe. Figure 1 The first water tank 11 and the second water tank 12 are connected by a connecting pipe, so that when the water inlet pipe supplies water to the first water tank 11, it can also supply water to the second water tank 12, without the need to connect the branch of the water supply pipe to the second water tank 12, which simplifies the structure of the water pipe of the variable frequency constant pressure water supply equipment 1000. At the same time, the filtered and sterilized water flows from the first water tank 11 to the second water tank 12, ensuring the purity of the water source. There is no need to filter and sterilize the water in the second water tank 12, which controls the cost of filtering and sterilizing the water source, thereby reducing the overall cost of the variable frequency constant pressure water supply equipment 1000. Further, in order to facilitate the adjustment of the water supply conditions of the first water tank 11 and the second water tank 12, a solenoid valve is provided on the connecting pipe. The opening and closing of the connecting pipe is realized by controlling the opening and closing of the solenoid valve through the controller. When water is supplied through the first water tank 11, the solenoid valve is closed to ensure the water pressure between the first water tank 11 and the first water pump 21. When water is supplied through the second water tank 12, the solenoid valve is opened to connect it with the first water tank 11, so that the water in the first water tank 11 can be replenished into the second water tank 12 in time. In addition, air holes can be opened on the top walls of the first water tank 11 and the second water tank 12 to balance the internal water pressure when the amount of water in the first water tank 11 and the second water tank 12 is reduced, thereby avoiding excessive negative pressure in the first water tank 11 and the second water tank 12 causing concave tank walls, thereby ensuring the normal operation of the variable frequency constant pressure water supply equipment 1000.
[0038] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A variable frequency constant pressure water supply equipment, It is characterized in that include: A water tank assembly, the water tank comprising a first water tank and a second water tank, the first water tank and the second water tank are connected in parallel via a connecting pipe, the water inlet ends of the first water tank and the second water tank are connected to a water inlet pipe, and the capacity of the first water tank is greater than that of the second water tank; A water pump assembly, wherein the water pump comprises a first water pump and a second water pump, wherein the first water pump and the second water pump are connected to the water outlet ends of the first water tank and the second water tank respectively, and one end of the first water pump and the second water pump facing away from the water tank assembly is connected to a water outlet pipe through a three-way valve; A frequency converter, the frequency converter electrically connecting the first water pump and the second water pump to adjust the rotation speeds of the first water pump and the second water pump; A filter element is arranged on the water inlet pipe, and the filter element comprises a filter channel and a slag discharge channel. Both ends of the filter channel are connected to the water inlet pipe, and the slag discharge channel is connected to the filter channel at an angle.
2. The variable frequency constant pressure water supply equipment according to claim 1, It is characterized in that The filter element further comprises a filter plate, and the filter plate is arranged at one end of the filter channel away from the slag discharge channel, so that impurities in the filter pipe can enter the slag discharge channel.
3. The variable frequency constant pressure water supply equipment as claimed in claim 2, It is characterized in that The filter plate is arranged in an oblique direction on the filter channel.
4. The variable frequency constant pressure water supply equipment as claimed in claim 3, It is characterized in that The slag discharge channel is provided with a slag discharge valve.
5. The variable frequency constant pressure water supply equipment according to any one of claims 1 to 4, It is characterized in that The variable frequency constant pressure water supply equipment also includes a sterilization component, and the sterilization component is arranged on the top of the inner cavity of the first water tank.
6. The variable frequency constant pressure water supply equipment according to claim 5, It is characterized in that The variable frequency constant pressure water supply equipment also includes a liquid level sensor, which is arranged on the inner wall of the first water tank to detect the liquid level height in the first water tank.
7. The variable frequency constant pressure water supply equipment according to claim 6, It is characterized in that The variable frequency constant pressure water supply equipment also includes a pressure gauge, which is arranged on the water outlet pipe.
8. The variable frequency constant pressure water supply equipment according to claim 7, It is characterized in that A cooling fan is arranged on the rear shell of the frequency converter, and a protective shell is arranged on the outer side of the frequency converter.
9. The variable frequency constant pressure water supply equipment according to claim 8, It is characterized in that The variable frequency constant pressure water supply equipment also includes a water quality detector, which is arranged on the water outlet pipe.
10. The variable frequency constant pressure water supply equipment according to claim 9, It is characterized in that The first water tank is arranged above the second water tank, the bottom end of the first water tank is connected to the top end of the second water tank through a connecting pipe, and a solenoid valve is arranged on the connecting pipe.