WO2018099274A1

WO2018099274A1 - Device for boosting drainage flow of submersible pump

Info

Publication number: WO2018099274A1
Application number: PCT/CN2017/111503
Authority: WO
Inventors: 郑翔骥; 杨斌; 陈明进; 许海烽; 叶惠明
Original assignee: 厦门惠尔洁卫浴科技有限公司
Priority date: 2016-12-02
Filing date: 2017-11-17
Publication date: 2018-06-07
Also published as: CN106522328A

Abstract

A device for boosting a drainage flow of a submersible pump (1). The submersible pump (1) is fixed in a reservoir (20). A submersible pump inlet of the submersible pump (4), a submersible pump chamber (5) and a submersible pump outlet (3) of the submersible pump (1) are arranged at locations lower than a working water level of the reservoir (20). The submersible pump outlet (3) opens towards a pipe set (6) fixed above the submersible pump (1). The pipe set (6) comprises a pipe set inlet pipe (7) and a pipe set outlet pipe (8). The pipe set inlet pipe (7) is fit to the submersible pump outlet (3), and has a top end outer diameter less than an inner diameter of a water inlet of the pipe set outlet pipe (8), providing a water inlet (9) of the pipe set between the top end (71) of the pipe set inlet pipe (7) and the pipe set outlet pipe (8). A water outlet (10) of the pipe set outlet pipe (8) is arranged higher than the working water level of the reservoir (20).

Description

Device for enhancing drainage flow of submersible pump

Technical field

The present invention relates to a device for enhancing drainage flow, and more particularly to a device for using a submersible pump to enhance displacement.

Background technique

In real life, people are increasingly using submersible pumps to achieve various water needs. It is well known that the use of submersible pumps tends to select a pump body with a suitable head and drain flow depending on the location of the application. In places with large demand for drainage flow, submersible pumps with higher power are often selected to meet the requirements of drainage flow. The use of high-power submersible pumps not only has the problem of energy consumption, but also the excessive space occupied by the pump body limits the use of high-power submersible pumps.

Because of the beauty and space saving, the intelligent toilets for water tanks or ultra-low tanks are becoming more and more popular. The conventional flushing method for toilets of this type on the market is to use tap water to control the toilet directly into the toilet for washing and washing, but tap water. The biggest problem of direct flushing is that when the water pressure of the tap water pipe is lower than 0.25Mpa, sufficient water pressure and flow rate cannot be guaranteed. The toilet washing and rinsing effect is very bad, and the proportion of residents below 0.25Mpa water supply pressure is still quite large. When the toilet seller sells this type of toilet, he has to go to the door to measure the intention to purchase the actual water supply pressure of the customer's home to determine the applicability. In addition, even in the case of the water supply pressure of the residents, due to the uncertainty of the water pressure of each user and the randomness of the water pressure fluctuation during the peak of water consumption, the flushing amount cannot be accurately set and controlled, resulting in a certain amount of wasted water.

Summary of the invention

In view of the problems existing in the prior art, the present invention provides a device for enhancing the drainage flow of a submersible pump, which provides a stable structure for increasing the drainage flow of the submersible pump, thereby saving energy and saving the pump body. It takes up space and also saves the cost of the submersible pump.

To achieve the above object, the technical solution of the present invention is:

A device for enhancing the drainage flow of a submersible pump, the device comprising a submersible pump and a casing; the submersible pump being fixed in a reservoir; the submersible pump inlet of the submersible pump, the submersible pump chamber and the submersible pump The water outlet is lower than the working water level setting of the water reservoir, and the water outlet opening of the submersible pump is disposed toward the casing; the casing is fixed above the submersible pump; the casing includes a casing inlet pipe and a casing outlet pipe. The casing inlet pipe is sleeved on the submersible pump outlet, and the outer diameter of the top end of the casing inlet pipe is smaller than the inner diameter of the inlet port of the casing outlet pipe to be at the top end of the casing inlet pipe A water inlet of the casing is formed between the casing outlet pipes; the water outlet of the casing outlet pipe forms a water outlet of the casing higher than the working water level of the reservoir.

A device for enhancing the discharge flow rate of a submersible pump as described above, the device further comprising a submersible pump fixing device fixed in the water reservoir, the submersible pump being fixed on the submersible pump fixing device and fixedly occluding the submersible pump In the reservoir.

The above technical solutions are beneficial in that:

The effect of the drainage flow generated by the device for enhancing the drainage flow of the submersible pump is to use the Bernoulli principle, and the inlet of the casing is arranged at the transition section of the casing inlet pipe to the casing outlet pipe, which is generated when the submersible pump is sprayed. In the case of fast flowing water, the pressure of the fast flowing water is lower than that of the slow flowing water, resulting in a pressure difference between the water pressure inside and outside the casing, and the water outside the casing also flows into the casing through the inlet of the casing. After being superimposed with the water jet sprayed by the submersible pump, it is discharged from the water outlet of the casing to increase the drainage flow of the submersible pump.

The device for enhancing the drainage flow rate of the submersible pump according to the present invention has a shorter water discharge amount, and the time required for the pumping of the same volume of water is shorter, and the water quality of the reservoir is not high, and the liquid of various fluids can be expanded and used. occasion.

In the irrigation and drainage irrigation or other water conservancy projects, when the water is sent from the low-lying area pool to the high water supply, it is generally necessary to use a high-power submersible pump for large-flow drainage and water supply. After the device for enhancing the drainage flow of the submersible pump is used, the requirements on the lift are not high. The place, the small power submersible pump can get the same flow of high-power submersible pump.

When the toilet in the low water tank is flushed, because the water potential of the water tank is low, the submersible pump is usually used to pump the water in the water tank to flush the toilet. When the toilet flushes, the maximum flushing flow value of the toilet instantaneously is used to wash the dirt. The effect has a greater impact, so the common practice is to find ways to improve the instantaneous flushing volume of the toilet in order to achieve a good flushing effect, while achieving the purpose of water conservation. By adopting the device for enhancing the drainage flow of the submersible pump of the present invention, the low-power submersible pump can obtain the drainage flow that can be achieved by the high-power submersible pump, thereby reducing the equipment procurement cost and the equipment occupation space, and also reducing the equipment. Use power consumption.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention.

Figure 1 is a schematic view showing the structure of the device for enhancing the drainage flow rate of the submersible pump of the present invention in an exploded state;

2 is a schematic structural view of a device for enhancing the drainage flow of a submersible pump in a combined state according to the present invention;

3 is a schematic structural view of the device for enhancing the drainage flow of a submersible pump according to the present invention in use;

4 is a schematic structural view of a device for enhancing drainage flow of a submersible pump applied to farmland irrigation according to the present invention;

5 is a schematic structural view of a device for enhancing a drainage flow of a submersible pump applied to a flush toilet using a low water tank;

6 is a schematic structural view of a device for enhancing a drainage flow of a submersible pump according to the present invention applied to a whirlpool siphon toilet using a low water tank;

Fig. 7 is a schematic view showing the structure of a device for enhancing the drainage flow rate of a submersible pump according to the present invention applied to a jet siphon toilet using a low water tank.

[Description of the reference number]

Submersible pump 1, submersible pump fixing device 2, submersible pump outlet 3, submersible pump inlet 4, submersible pump chamber 5, casing 6, casing inlet pipe 7, casing outlet pipe 8, casing inlet pipe to casing The water inlet of the casing of the transition section of the pipe outlet pipe, the water outlet of the casing 10, the reservoir 20, and the flush toilet of the low water tank 25, a low-water tank whirlpool siphon toilet 30, a low-water tank jet siphon toilet 40.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIGS. 1 to 3, a device for enhancing the discharge flow rate of a submersible pump includes a submersible pump 1, a submersible pump fixture 2, and a casing 6. The submersible pump 1 fixing device 2 is a T-shaped frame fixed in the reservoir 20, and the submersible pump 1 is fixed on the vertical rod and the cross bar of the T-shaped frame to pass the submersible pump 1 through the submersible pump The fixture 2 is stably submerged in the reservoir 20.

A casing 6 is fixed above the submersible pump outlet 3, and the casing 6 includes a casing inlet pipe 7 and a casing outlet pipe 8, which is placed below the casing outlet pipe 8. The submersible pump 1 is provided with a submersible pump outlet 3 toward the casing outlet pipe 8. The casing inlet pipe 7 is sleeved on the submersible pump outlet 3, and the outer diameter of the top end portion 71 of the casing inlet pipe 7 is smaller than The inner diameter of the inlet port of the casing outlet pipe 8 extends into the casing outlet pipe 8 to form an annular shape between the top end portion 71 of the casing inlet pipe 7 and the casing outlet pipe 8. The water inlet 9 of the casing. The water outlet of the casing outlet pipe 8 forms a water outlet 10 of the casing, and the water outlet 10 of the casing is higher than the working water level of the reservoir.

When the submersible pump 1 is started to pump water, the water in the water storage tank 20 enters the submersible pump pump chamber 5 from the submersible pump water inlet 4, and is injected into the casing inlet pipe 7 through the submersible pump water outlet 3, and then sprayed into the casing water outlet pipe. 8 inside. According to the principle of Bernoulli's fluid mechanics, the pressure of the fast-flowing water flow is lower than that of the slow-flowing water. Due to the pressure difference between the water pressure inside and outside the casing 6, the water in the reservoir 20 outside the casing 6 also passes through the casing. The water inlet 9 flows into the jacket outlet pipe 8 and is superimposed with the water jet sprayed by the submersible pump 1 to be discharged from the water outlet 10 of the casing, and the double superposition effect of the water in the reservoir 20 is used to increase the submersible pump 1 The role of drainage flow.

The submersible pump inlet 4, submersible pump chamber 5 and submersible pump outlet 3 of the submersible pump 1 of the present invention need to be lower than the working water level of the reservoir.

The water in the reservoir of the invention achieves the effect of amplifying the flow under the superposition effect of the water inlet 9 of the casing and the submersible pump 1. The water in the reservoir can be a liquid of various fluids (such as seawater and fresh water), The use of the device for enhancing the drainage flow of the submersible pump of the present invention is expanded.

Embodiment 1:

As shown in FIG. 4, the device for enhancing the drainage flow of the submersible pump of the present invention is applied to a farmland irrigation site.

When the submersible pump 1 is started to pump water, the water in the reservoir 20 is injected into the casing inlet pipe 7 through the submersible pump outlet 3, and according to the Bernoulli fluid mechanics principle, the fast flowing water pressure is slower than the slow flowing water flow. The pressure is low. Due to the pressure difference between the water pressure inside and outside the casing 6, the water in the reservoir 20 outside the casing 6 also flows into the casing water pipe 8 through the water inlet 9 of the casing, and is sprayed with the submersible pump 1. After the water flow is superimposed, it is discharged from the water outlet 10 of the casing to achieve the function of pumping large water with a small pump.

Implementation of two, three, four:

As shown in FIG. 5-7, the device for enhancing the drainage flow of the submersible pump of the present invention is respectively applied to the structure of the direct flush toilet, the swirl siphon toilet and the jet siphon toilet of the low water tank.

When the submersible pump 1 is started to pump water, the water in the water tank is injected into the casing inlet pipe 7 through the submersible pump outlet 3, and according to the Bernoulli fluid mechanics principle, the fast flowing water pressure is lower than the slow flow water pressure. Due to the pressure difference between the water pressure inside and outside the casing 6, the water in the reservoir 20 outside the casing 6 also flows into the casing water pipe 8 through the water inlet 9 of the casing, and is superimposed with the water jetted by the submersible pump 1. The water outlet 10 of the casing is discharged into the toilet flushing pipe for flushing the toilet to enhance the flushing effect of the toilet.

The apparatus for enhancing the flow rate of the submersible pump of the present invention can achieve the scrubbing flow rate by using a small micro submersible pump. According to the actual experimental test, the toilet should achieve a better scrubbing effect. The flow rate of the scrubbing channel should exceed 25L/Min. The hardware parameters of the micro submersible pump are: drainage flow 6L/min, lift 6.5m, power 12v. -1.5A, the pump body diameter is 42mm; after using the flow enhancement device, the indicators are improved as follows: the drainage flow is increased to 27L/min, the lift is reduced to 0.4m (meeting the requirements), and the power is 12v. -1.5A, pump body diameter 42mm. After using the intelligent flush toilet of the present invention, the drainage flow rate is increased by 21 L/min, a very good scrubbing effect. Imagine if you do not use the intelligent flush toilet of the present invention, you need to purchase a submersible pump with a larger flow rate, such as the following hardware indicators: 25L/min, lift 6 meters, power 24v -2A (three-phase power supply mode), the pump body diameter is 60mm, to meet the actual flow requirements, obviously this cost is several times higher, larger, and consumes more power. And the traditional low-water tank flushing design system uses the tap water straight-through scheme, which can not achieve a good scrubbing effect when the tap water pressure is lower than 0.25Mpa. By adopting the device for enhancing the flow rate of the submersible pump of the present invention, the water is pumped from the low position to the high position washing port, and the water flushing effect can be achieved without being affected by the external water pressure.

The above description shows and describes a preferred embodiment of the present invention. As described above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as being Combinations, modifications, and environments are possible, and can be modified by the teachings of the above teachings or related art within the scope of the inventive concept described herein. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims.

Claims

A device for enhancing the drainage flow of a submersible pump, characterized in that the device comprises a submersible pump (1) and a casing (6); wherein:

The submersible pump (1) is fixed in the reservoir (20); the submersible pump inlet (4), the submersible pump chamber (5) and the submersible pump outlet (3) of the submersible pump (1) are lower than the submersible pump (1) The working water level of the pool is set, and the outlet of the submersible pump (3) is arranged toward the casing (6);

a casing (6) fixed above the submersible pump (1); the casing (6) comprising a casing inlet pipe (7) and a casing outlet pipe (8), the casing inlet pipe (7) sleeve It is arranged on the submersible pump outlet (3), and the outer diameter of the top end portion (71) of the casing inlet pipe (7) is smaller than the inner diameter of the inlet port of the casing outlet pipe (8) to be in the casing inlet pipe a water inlet (9) of the casing is formed between the top end portion (71) and the casing outlet pipe (8); the water outlet of the casing outlet pipe (8) forms a working water level higher than the reservoir The outlet of the casing (10).
A device for enhancing the drainage flow of a submersible pump according to claim 1, characterized in that the device further comprises a submersible pump fixing device (2) fixed in the reservoir (20), the submersible pump (1) Fixed on the submersible pump fixing device (2) and fixedly placed in the reservoir (20).