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CN211666953U - Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device - Google Patents

Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device Download PDF

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Publication number
CN211666953U
CN211666953U CN201922081671.6U CN201922081671U CN211666953U CN 211666953 U CN211666953 U CN 211666953U CN 201922081671 U CN201922081671 U CN 201922081671U CN 211666953 U CN211666953 U CN 211666953U
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water
gas
inlet
air
pipe
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潘海新
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Chongqing Xintou Technology Co ltd
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Chongqing Xintou Technology Co ltd
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Abstract

The utility model discloses in the embodiment, pneumatic equipment and have the pressure gas to produce the air inlet structure on the device and, wherein this air inlet structure it includes: the gas collecting bin comprises a water storage space, and a gas collecting port and a water outlet which are communicated with the water storage space are formed in the outer wall of the water storage space; the water pipe comprises a first end and a second end, the first end of the water pipe comprises at least one water inlet, the second end of the water pipe comprises a water outlet, the water inlet and the water outlet are communicated through the water pipe, the water outlet is arranged near the gas collecting opening, and the water inlet and a water outlet on the gas collecting bin are arranged in a position different from each other in the gravity direction; and the control switch is arranged at the first end of the water pipe and is used for controlling the water inflow to the water inlet in a timing mode. This application sets up control switch through the water inlet at the water pipe, makes the rivers and the gaseous volume of entering water pipe unanimous relatively to improve gaseous collection efficiency.

Description

Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device
Technical Field
The utility model belongs to the technical field of the water conservancy, concretely relates to pneumatic equipment with press gaseous generating device and go up inlet structure thereof.
Background
Water energy is used as the largest energy source in the nature, and in the prior art, air is compressed through the potential energy change of water, so that high-pressure gas is generated, and the high-pressure gas can be used for driving the existing pneumatic equipment to do work. The theoretical principle of water conservancy energy compressed air does: water with proper flow flows from a high position to a low position along a water pipe, large bubbles are sucked by using the siphon effect principle, and in turbulent water, water flow has the tendency of automatically separating the bubbles in the water flow into smaller bubbles; big bubbles become small bubbles under the action of water flow, and if the trend that water flow separates the bubbles into small bubbles is stronger than the trend that the bubbles fuse into big bubbles under a certain state, the bubble volume is in a non-equilibrium state, and the bubbles are gradually separated into smaller bubbles. As the volume of the bubbles decreases, the ratio of the buoyancy to which the bubbles are subjected/the friction between the bubbles and the water flow decreases to less than 1. The small bubbles move downward with the water flow. When the water flow is changed into horizontal flow, the water flow speed is slow, small bubbles can move upwards and float upwards, and the bubbles tend to be automatically fused into larger bubbles. The integration of small bubble is the big bubble, and then collects the bubble to produce high-pressure gas, this is exactly the theoretical basis that current water conservancy can compressed air produces high-pressure gas.
However, practice finds that the gas collecting efficiency in the existing process of compressing air by water energy is not ideal and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of the gas collection efficiency of water conservancy energy compressed air in-process.
According to a first aspect of the present application, there is provided an air intake structure for use in a pressurized gas generating apparatus, comprising: the gas collecting bin comprises a water storage space, and a gas collecting port and a water outlet which are communicated with the water storage space are formed in the outer wall of the water storage space; the water pipe comprises a first end and a second end, the first end of the water pipe comprises at least one water inlet, the second end of the water pipe comprises a water outlet, the water inlet and the water outlet are communicated through the water pipe, the water outlet is arranged near the gas collecting opening, and the water inlet and the water outlet on the gas collecting bin have a position difference in the gravity direction; and the control switch is arranged at the first end of the water pipe and used for controlling the water inflow to the water inlet in a timing mode.
In some embodiments, the control switch is a rotary switch connected to the first end of the water pipe, and the rotary switch is used for timing connection of the water inlet on the first end of the water pipe with the water source.
In some embodiments, the first end of the water tube further comprises an air inlet, the air inlet being in communication with the water inlet; the control switch is a valve switch, is arranged on the water inlet at the first end of the water pipe and is used for controlling the water inlet to be opened and closed at regular time; the water inlet is communicated with a water source.
In some embodiments, the water pipes are one or more groups of diversion water pipes, each group of diversion water pipes comprises at least one diversion water pipe, and the structure of each diversion water pipe is consistent with that of the water pipe.
According to a second aspect of the present application, there is provided a pressurized gas generating apparatus, characterized by comprising one or more of said gas inlet structures.
In some embodiments, when a plurality of the air intake structures are included, each of the air intake structures is connected in series.
In some embodiments, the structure in which each of the air intake structures is connected in parallel includes: the gas inlet structures are sequentially arranged along the gravity direction, the gas collecting ports on the gas inlet structures are connected to a gas collecting pipeline through gas pipes, and the gas pipes are connected with one-way valves allowing gas to flow to the gas collecting pipeline.
In some embodiments, when a plurality of the air intake structures are included, each of the air intake structures is connected in parallel.
In some embodiments, the structure in which each of the air intake structures is connected in parallel includes: the air inlet structures are horizontally arranged side by side, and the air collecting ports on the air inlet structures are connected to an air collecting pipeline through air pipes. The air pipe is connected with a one-way valve which allows air to flow to the air collecting pipeline.
According to a third aspect of the present application, there is provided a pneumatic device comprising the pressurized gas generating apparatus.
The beneficial effect of this application lies in: the water inlet through at the water pipe sets up control switch, regularly opens and closes through control switch and makes the rivers and the gas volume of entering water pipe unanimous relatively to guarantee the bubble unanimous relatively in the rivers, thereby make under the unanimous and the relatively stable condition of discharge of bubble size, the bubble flows and can form certain regularity, and then does benefit to and collects from the outflow of gas collection mouth, with the collection efficiency that improves gas.
In addition, especially on it control rivers through the water conservancy diversion water pipe and carry the bubble can more effectively guarantee the stability and the regularity of bubble, and then do benefit to by effective collection.
Drawings
Fig. 1 is a schematic diagram of an air inlet structure for a pressurized gas generating apparatus according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of the control switch and the first end of the water pipe in an embodiment.
Fig. 3 is a schematic diagram of a pressurized gas generating apparatus provided in an embodiment of the present application.
Fig. 4 is a schematic diagram of a pressurized gas generating apparatus provided in another embodiment of the present application.
Detailed Description
Utility model people's research and development process:
in the prior art, air is compressed through potential energy change of water, so that high-pressure gas is generated, and the high-pressure gas can be used for driving the existing pneumatic equipment to do work. The theoretical principle of water conservancy energy compressed air does: water with proper flow flows from a high position to a low position along a water pipe, large bubbles are sucked by using the siphon effect principle, and in turbulent water, water flow has the tendency of automatically separating the bubbles in the water flow into smaller bubbles; big bubbles become small bubbles under the action of water flow, and if the trend that water flow separates the bubbles into small bubbles is stronger than the trend that the bubbles fuse into big bubbles under a certain state, the bubble volume is in a non-equilibrium state, and the bubbles are gradually separated into smaller bubbles. As the volume of the bubbles decreases, the ratio of the buoyancy to which the bubbles are subjected/the friction between the bubbles and the water flow decreases to less than 1. The small bubbles move downward with the water flow. When the water flow is changed into horizontal flow, the water flow speed is slow, small bubbles can move upwards and float upwards, and the bubbles tend to be automatically fused into larger bubbles. The integration of small bubble is the big bubble, and then collects the bubble to produce high-pressure gas, this is exactly the theoretical basis that current water conservancy can compressed air produces high-pressure gas.
However, in practice, the prior art has uncertainty after the gas enters the flowing water, and the efficiency of changing large bubbles into small bubbles cannot be effectively controlled and happens randomly. The small bubbles can not be effectively controlled along with the downward flowing amount of water flow, so that the gas collection efficiency is a key factor for determining whether the larger application can be practiced, and the size and the stability of the bubbles are found to influence the bubble collection efficiency through practice, which is that the problem is not considered in the existing research. Therefore, how to improve the gas collection efficiency in the process of compressing air by water energy is a current technical problem.
The inventive idea of the application is as follows: based on the above problems, the utility model provides the following theoretical basis through research.
The theoretical principle of water conservancy energy compressed air does: and after the water depth of the downstream water storage pipe is determined, selecting a proper diversion water pipe inner diameter. Controlling the water flow entering the diversion water pipe to form a siphon effect, and enabling a certain proportion of water and air to flow from a high position to a low position along the diversion water pipe, wherein the flow generating condition is that the resultant force of the gravity of the water inflow of the diversion water pipe and the atmospheric pressure difference (upstream and downstream fall) is larger than the flow resistance (the resultant force of the surface tension of water, the friction of the wall of the diversion water pipe, the upward buoyancy of air and the like) generated by the flow of the water and the air in the diversion water pipe. Exactly, utilize the flow potential energy of water to let the bubble flow to low department (submarine) along water conservancy diversion water pipe by the eminence, and then collect the bubble, because the existence of water pressure (the surface of water of low reaches to submarine degree of depth), make the air that gets into the gas receiver receive the compression of water pressure (the surface of water of low reaches to submarine degree of depth) to produce high-pressure gas, this is exactly the utility model discloses a water conservancy energy compressed air produces high-pressure gas's theoretical basis.
Based on the above-mentioned utility model concept, the following is a detailed description of the above-mentioned utility model concept of utility model people through the following embodiments.
Example 1
Fig. 1 is a schematic diagram of an air inlet structure for a pressurized air generating device according to an embodiment of the present disclosure.
As shown in fig. 1, the air intake structure comprises an air collecting bin 6, a water pipe 5 and a control switch 2, the air collecting bin comprises a water storage space 15, and an air collecting port 13 and a water outlet 8 which are communicated with the water storage space 15 are arranged on the outer wall of the water storage space 15; the water pipe 5 comprises a first end and a second end, the first end of the water pipe 5 is provided with a water inlet 4, the second end of the water pipe 5 is provided with a water outlet 14, the water outlet 14 is aligned with the gas collecting port 13, and the water inlet 4 and a water outlet 8 on the gas collecting bin 6 have a position difference in the gravity direction; and the control switch 2 is arranged at the first end of the water pipe 5 and is used for controlling the water inflow to the water inlet 4 in a timing mode.
Specifically, fig. 1 also shows other accessory components matched with the air inlet structure, as shown in fig. 1, a water inlet on the water pipe 5 is arranged in an upstream water tank 1, a water outlet on the gas collection bin 6 is arranged in a downstream water tank 7, a gas collection pipe 12 is connected to the gas collection port 13, a gas outlet 9 is arranged on the gas collection pipe 12, and a one-way valve 10 and a switch 11 are arranged on the gas outlet 9. The above auxiliary components can combine a plurality of air inlet structures in practical application to form a pneumatic source which can meet certain power.
Referring again to fig. 1, in some embodiments, the first end of the water pipe 5 further includes an air inlet 3, and the air inlet 3 is communicated with the water inlet 4; the control switch 2 is a valve switch, is arranged on the water inlet 4 at the first end of the water pipe 5, and is used for controlling the water inlet 4 to be opened and closed at regular time; the water inlet 4 is communicated with a water source.
Fig. 2 is a schematic structural diagram of the control switch and the first end of the water pipe in an embodiment.
As shown in fig. 2, the control switch 2 is a rotary switch connected to the first end of the water pipe 5, and the rotary switch is used for connecting the water inlet 4 on the first end of the water pipe 5 with the water source 17 at regular time. In practical application, the working process of the air inlet structure is as follows: the water inlet 4 is controlled by the control switch 2, before the water in the gas collecting bin 6 is emptied, the control switch starts to work, the opening and closing of the water inlet 4 of the water pipe 5 are controlled according to set time, and under the regular opening and closing action of the control switch 2, the ratio of the water inflow amount to the air inflow amount in the water pipe 5 is in a proper range, so that a section of air and a section of water can appear in the water pipe 5; then, under the combined action of the gravity of water and the atmospheric pressure difference (difference between the upstream and the downstream), water and air in the water pipe 5 flow downwards to reach a water outlet 14 at the second end of the water pipe 5 and are discharged from the water outlet 14, the water outlet 14 is designed below the gas collecting port 13, when the water in the water storage space 15 is full of water and exceeds the gas collecting port 13, the air output from the output port of the diversion water pipe floats upwards to enter the gas collecting pipe, the air pressure entering the gas collecting pipe 12 rises along with the continuous rise of the water level in the water storage space 15, and high-pressure air is formed under the pressure action of the downstream water depth; wherein, the pressure of the high-pressure gas is related to the depth (or height) from the water surface of the water outlet 8 of the gas collecting bin 6 to the water bottom of the inlet of the gas collecting port 13, and the pressure of the gas is equal to the pressure of the water part of the inlet of the downstream gas collecting port 13.
It should be noted that: before the air inlet structure starts to work, the air compressing water in the outer pipeline must be discharged, otherwise, the air inlet structure cannot work normally. The collected high-pressure gas can be used for doing work outwards.
In some embodiments, the water pipes 5 are one or more groups of diversion water pipes, and each group of diversion water pipes at least comprises one or more diversion water pipes, and the diversion water pipes are consistent with the water pipes 5 in structure. The embodiment can effectively control the proportion of the water inflow and the air inflow in the diversion water pipe by using the diversion water pipe, and compared with the existing mode of generating bubbles by using a single water pipe, the bubble amount and the bubble stability of the embodiment are obviously superior to those of the prior art, namely, the diversion water pipe is the key for storing the bubble consistency, and compared with the prior art, the bubbles generated by the diversion water pipe are more stable and uniform; more importantly, the flow guide water pipe can float upwards along with the water surface, when the water storage space 15 is full of water, the flow guide water pipe can rise along with the liquid level, and when the water storage space 15 is full of water and exceeds the gas collecting port 13, the water outlet of the flow guide water pipe can enter the liquid level of the gas collecting pipe 12 along the liquid level, so that the bubble collecting efficiency can be greatly increased.
In particular, the diversion pipe may include a hose and a plastic pipe, for example, if the hose is selected, the hose may float up with the liquid surface due to a certain flexibility.
It should be understood that in practical application, how many diversion water pipes are needed is determined by engineering tasks, and more diversion water pipes are needed when the flow rate is large, and less diversion water pipes are needed when the flow rate is small.
Example 2
The present embodiment can combine the air intake structure to meet the actual engineering air pressure requirement based on embodiment 1.
Specifically, the present embodiment provides a pressurized gas generating apparatus, which includes one or more gas inlet structures according to any one of the embodiments 1.
In some embodiments, when a plurality of the air intake structures are included, each of the air intake structures is connected in parallel, see FIG. 3. As shown in fig. 3, the structure in which the intake structures are connected in parallel includes: the air inlet structures are horizontally arranged side by side, and the gas collecting ports 13 on the air inlet structures are connected to a gas collecting pipe 12 together through a gas pipe 16.
In some embodiments, a one-way valve 10 is connected to the gas line 16 to allow gas to flow to the gas manifold 12.
In some embodiments, when a plurality of the air intake structures are included, each air intake structure is connected in series, see FIG. 4. As shown in fig. 4, the structure in which the intake structures are connected in series includes: the gas inlet structures are arranged in sequence along the gravity direction, and the gas collecting ports 13 on the gas inlet structures are connected to a gas collecting pipe 12 together through a gas pipe 16.
In some embodiments, a one-way valve 10 is connected to the gas line 16 to allow gas to flow to the gas manifold 12.
It should be understood that, by the solution provided by the above embodiment 2, in the actual application design, if the upstream water inflow amount is large, the topography is flat, and a large drop cannot be made, a parallel structure may be selected to organize row installation gas collection; if the water inflow amount of the upstream is limited in a mountain ditch of a mountain area, the gas collecting pipe group can use a serial structure to organize rows to collect gas.
In practical application, the air inlet structure in embodiment 1 can be applied to a pneumatic water pump or an aeration air source device in sewage treatment, so that energy consumption can be effectively reduced.
Application example 1
The air inlet structure is applied to water pumping engineering, and the specific application process is as follows.
Firstly, engineering requirements are as follows: the lift is 5 meters, and the water flow is 25.8 cubic meters per hour.
The technical conditions are as follows: the lift of the pumping system is designed to be 5.5 m, and the air pressure (gauge pressure) of the pneumatic pumping pump can not be less than 0.055 Mpa. The compressed air in each stage of pipe has a depth of over 5.5 m and a pressure (gauge pressure) not less than 0.055 MPa.
The design of 5-stage air pipe groups requires that the fall of each stage is 1.2 meters, and the water depth of the downstream is 5.5 meters. The height of each stage of tube group is as follows: 1.2 m +5.5 m is 6.7 m, and the total fall is 6.7 m. Water storage pipe
Figure BDA0002292414560000061
For each stage of air-compressing tube set
Figure BDA0002292414560000062
400 diversion water pipes. 5 stages share one inlet water and inlet air flow ratio controller, and the total power consumption is 100 watts. One set of pneumatic water pump consumes 20 watts of power. The total power is 120 watts.
Under the standard atmospheric pressure, the water inlet and the air inlet air input proportion of the water inlet are 1: 0.2.
and II, engineering calculation.
1. Calculating gas:
sectional area of pipe: l3 × 3.14 × 400 ═ 11304 mm square 0.000001 ═ 0.011304 square meters, total duct cross-sectional area: 0.011304 square meters.
Flow rate of water: 1 m/s.
Flow rate of water without air compression: the pipe cross-sectional area 0.011304 square meters water flow rate 1 meter/second is the water flow rate 0.011304 cubic meters/second.
The gas flow rate is equal to the water flow rate: and V is 1 m/s. Gas flow rate equal to water flow rate 0.011304 cubic meters per second 0.2 efficiency 0.0022608 cubic meters per second. I.e. a gas flow of 0.0022608 cubic meters per second.
Total flow of gas from the first 5 stages without compression: 0.0022608 cubic meters/second 5 0.011304 cubic meters/second.
2. Total gas flow of a group of 5-stage tube groups:
air compressed to a volume after 0.055Mpa (gauge pressure) at standard atmospheric pressure: 0.011304 cubic meters 0.101-0.001141704, 0.001141704/0.156-0.0073186153846 cubic meters. Namely, the flow rate of the 5-stage high-pressure gas is as follows: 0.0073186153846 cubic meters per second.
3. Calculating the pneumatic water pumping amount:
the pumping system directly pumps water by using high-pressure gas, has high efficiency without a rotating mechanism, and can reach the efficiency of more than 98 percent of gas flow. Pneumatic water pumping quantity: the flow rate is 0.0073186153846 cubic meters per second 0.98 ═ 0.0071722430769 cubic meters per second, that is, the pneumatic pumping flow rate is: 0.0071722430769 cubic meters per second. 0.0071722430769 cubic meters/second 60 0.43 cubic meters/minute. One hour is: 0.43 cubic meters per minute 60-25.8 cubic meters per hour. Namely the pumping system has the lift of 5 meters and the pumping system has the lift of 0.43 cubic meter per minute. One hour is 25.8 cubic meters.
4. Calculating the power of the electric water pump:
the electric water pump has a lift of 5 meters and a volume of 0.43 cubic meter per minute. One hour is 38 cubic meters. Flow rate per second; 0.43/60-0.0071666666 cubic meters/second. Calculating the power of the electric water pump: the formula: (head drop flow 9.8)/motor efficiency ═ power (KW).
And (3) power calculation: the power of the motor is as follows: 5m × 0.0071666666 m/s × 9.8 is 0.351(KW), the efficiency of the water pump cannot be 100%, generally 80% efficiency is obtained, and 0.351/0.8 is 0.438 KW. The power of the electric water pump required to be installed is as follows: the power of the electric water pump can be actually installed as follows: 438 watts.
5. Economic benefits are as follows: at a head of 5 meters, the flow rate is 25.8 cubic meters for one hour.
Adopt the utility model discloses a technique is pumped: the total power is 120 watts.
Adopt traditional electronic suction pump: the power of the electric water pump is as follows: 438 watts.
And (3) comparing power consumption: 438 w-120 w 318 w. The power is saved by 318 watts. The power is saved by 318W compared with the traditional electric water pump under the condition of the same water pumping flow and the same lift. The power saving efficiency reaches more than 72 percent.
Application example 2
The air inlet structure is applied to water pumping engineering, and the specific application process is as follows.
Firstly, engineering requirements are as follows: the lift is 5 meters, and the water flow is 16.1 cubic meters per hour.
The technical conditions are as follows: the lift of the pumping system is designed to be 5.5 m, and the air pressure (gauge pressure) of the pneumatic pumping pump can not be less than 0.055 Mpa. The compressed air in each stage of pipe has a depth of over 5.5 m and a pressure (gauge pressure) not less than 0.055 MPa.
The design of 5-stage air pipe groups requires that the fall of each stage is 1.2 meters, and the water depth of the downstream is 5.5 meters. The height of each stage of tube group is as follows: 1.2 m +5.5 m is 6.7 m, and the total fall is 6.7 m. Water storage pipe
Figure BDA0002292414560000081
For each stage of air-compressing tube set
Figure BDA0002292414560000082
400 diversion water pipes. 5 stages share one inlet water and inlet air flow ratio controller, and the total power consumption is 120 watts. One set of pneumatic water pump consumes 20 watts of power. The total power is 140 watts.
Under the standard atmospheric pressure, the water inlet and the air inlet air input proportion of the water inlet are 1: 0.25.
and II, engineering calculation.
1. Calculating gas:
sectional area of pipe: l3 × 3.14 × 400 ═ 11304 mm square 0.000001 ═ 0.011304 square meters, total duct cross-sectional area: 0.011304 square meters.
Flow rate of water: 0.5 m/s.
Flow rate of water without air compression: the pipe cross-sectional area 0.011304 square meters water flow rate 0.5 m/s-water flow rate 0.005652 cubic meters/s.
The gas flow rate is equal to the water flow rate: and V is 0.5 m/s. Gas flow rate equal to water flow rate 0.005652 cubic meters per second 0.25 efficiency 0.001413 cubic meters per second. I.e. a gas flow of 0.001413 cubic meters per second.
Total flow of gas from the first 5 stages without compression: 0.001413 cubic meters/second 5 0.007065 cubic meters/second.
2. Total gas flow of a group of 5-stage tube groups:
air compressed to a volume after 0.055Mpa (gauge pressure) at standard atmospheric pressure: 0.007065 cubic meters 0.101-0.000713565, 0.000713565/0.156-0.0045741346153 cubic meters. Namely, the flow rate of the 5-stage high-pressure gas is as follows: 0.0045741346153 cubic meters per second.
3. Calculating the pneumatic water pumping amount:
the pumping system directly pumps water by using high-pressure gas, has high efficiency without a rotating mechanism, and can reach the efficiency of more than 98 percent of gas flow. Pneumatic water pumping quantity: the flow rate is 0.0045741346153 cubic meters per second 0.98 ═ 0.0044826519229 cubic meters per second, that is, the pneumatic pumping flow rate is: 0.0044826519229 cubic meters per second. 0.0044826519229 cubic meters/second 60 0.2689 cubic meters/minute. One hour is: 0.2689 cubic meters per minute 60 cubic meters per hour 16.1 cubic meters per hour. Namely the pumping system has the lift of 5 meters and the pumping system has the lift of 0.2689 cubic meters per minute. One hour is 16.1 cubic meters.
4. Calculating the power of the electric water pump:
the electric water pump has a lift of 5 meters and a volume of 0.2689 cubic meters per minute. One hour is 16.1 cubic meters. Flow rate per second; 0.2689/60 is 0.00448 cubic meters/second. Calculating the power of the electric water pump: the formula: (head drop flow 9.8)/motor efficiency ═ power (KW).
And (3) power calculation: the power of the motor is as follows: 5m × 0.00448 cubic meter/s × 9.8 is 0.219(KW), the efficiency of the water pump cannot be 100%, generally 80% efficiency is adopted, 0.2195/0.8 is 0.274 KW. The power of the electric water pump required to be installed is as follows: the power of the electric water pump can be actually installed as follows: 274 watts.
5. Economic benefits are as follows: at a head of 5 meters, the flow rate is 16.1 cubic meters for one hour.
Adopt the utility model discloses a technique is pumped: the total power is 120 watts.
Adopt traditional electronic suction pump: the power of the electric water pump is as follows: 274 watts.
And (3) comparing power consumption: 274-120 w to 154 w. The power is saved by 154 watts. The power is saved by 154W compared with the traditional electric water pump under the condition of the same water pumping flow and the same lift. The power saving efficiency reaches more than 56%.
Application example 3
The application example applies the air inlet structure to the aeration of sewage treatment, and the specific application process is as follows.
Firstly, technical conditions are as follows: 5 stages of air pipe groups are designed, and the fall of each stage is 0.5 m. The total fall is 2.5 m, the water depth of the aeration tank is 3m, and the aeration pressure (gauge pressure) is 0.035 Mpa. The required compressed air depth is 3.5 m, and the total height is as follows: 3.5 m +2.5 m-6 m. Water storage pipe
Figure BDA0002292414560000091
For each stage of air-compressing tube set
Figure BDA0002292414560000092
400 diversion water pipes. Making fall water flow, and digging the air pool to a depth of 3.5 m. The lift is 2.5 meters (the sewage treatment plant has a certain fall, the fall required to be manufactured is small, and more electricity is saved, or the fall is not required to be manufactured, and the electricity is saved the most). 5 stages share one water-air flow rate proportional controller, and the total power consumption is 120 watts. And manufacturing a drop height water pump, and determining the power of the water pump according to the drop height.
Under the standard atmospheric pressure, the proportion of the compressed air water inflow and the air inflow is 1: 0.25.
secondly, engineering calculation:
1. calculating gas:
sectional area of pipe: l3 × 3.14 × 400 ═ 11304 mm square × 0.000001 ═ 0.011304 square meters, pipe cross-sectional area: 0.011304 square meters.
Flow rate of water: 1 m/s.
Flow rate of water without air compression: the pipe cross-sectional area 0.011304 square meters water flow rate 1 meter/second is the water flow rate 0.011304 cubic meters/second.
Flow rate of water during air compression: the water flow rate without compressed air (1-gas 0.29) is the water flow rate, and the water flow rate is 0.011304 cubic meters per second (0.75) 0.008478 cubic meters per second.
Electric water pump power: the electric water pump has a head of 2.5 m and a flow rate of 0.008478 cubic meters per second.
Calculating the power of the electric water pump: the formula: head meter flow cubic meter/second gravitational acceleration 9.8 ═ power (KW).
And (3) power calculation: the power of the motor is as follows: 2.5 m × 0.008478 m/s × 9.8 is 0.207711(KW), the efficiency of the pump cannot be 100%, generally 80% efficiency is obtained, and 0.207711 (KW)/efficiency 0.8 is 0.2596 (KW). The power of the electric water pump required to be installed is as follows: the power of the electric water pump which needs to be installed actually is as follows: 260 watts. The water flow is controlled to consume 120 watts. The total power consumption of the device is 260+120 to 380 watts, namely the total power consumption is 0.38 KW.
The gas flow rate is equal to the water flow rate: and V is 1 m/s. Gas flow rate equal to water flow rate 0.011304 cubic meters per second 0.25 efficiency 0.002826 cubic meters per second. I.e. the gas flow of the stage 1 gas compressor is 0.002826 cubic meters per second.
Total flow of gas in the first 5 stages of air compression: 0.002826 cubic meters/second 5 0.01413 cubic meters/second.
Total gas flow of a group of 5-stage tube groups:
air compressed to a volume after 0.033Mpa (gauge pressure): 0.01413 cubic meters 0.101-0.00142713, 0.00142713/0.134-0.01065 cubic meters. The total gas flow is: 0.01065 cubic meters per second.
I.e. a flow rate of 0.01065 cubic meters per second 60-0.639 cubic meters per minute. I.e., 0.639 cubic meters per minute.
0.639 cubic meters per minute 60-38.34 cubic meters per hour. Namely, the exhaust port flow rate: exhaust port pressure: 0.033MPa, i.e. a flow rate of 0.639 cubic meters per minute. I.e., 38.34 cubic meters per hour.
2. And calculating the energy consumption of the traditional equipment.
Traditional vortex fan: the power is 4 KW. The maximum air volume is 330 cubic meters per hour. Up to a pressure of 33 Kpa.
Flow rate: 330 cubic meter/3600-0.091667 cubic meter/second-0.101-0.009258/0.134-0.0691 cubic meter/second. Namely, the exhaust port flow rate: exhaust port pressure: at 0.033Mpa, the flow rate is 4.1455 cubic meters per minute. I.e., 248.73 cubic meters per hour. Total power consumption: 4KW per hour.
The engineering requirements are as follows: the flow rate of the traditional vortex fan is 4.1455 cubic meters per minute. I.e., 248.73 cubic meters per hour. The utility model discloses 7 sets of 5 grades of hydraulic energy compressed air devices of a set of need installation. Namely, the exhaust port flow rate: exhaust port pressure: 0.033Mpa, i.e. a flow rate of 0.639 cubic meters per minute by 7 ═ 4.473. I.e., 38.34 cubic meters by 7-268 cubic meters per hour. Total power consumption of the apparatus: 0.380 watts per hour 7-2660 watts, i.e., 2.66 KW.
3. And comparing the economic benefits.
And (3) comparing power consumption: 4KW-2.66KW ═ 1.34 KW. The electricity is saved by 1.34 KW. Namely, under the condition of the same pressure and flow of the exhaust port, the electricity is saved by 1.34KW compared with the traditional air compressor. The power saving efficiency reaches more than 30 percent.
Therefore, compared with the traditional air compressor, the air compressor saves electricity, and the electricity-saving efficiency reaches more than 30% when the flowing water fall needs to be artificially manufactured. If the condition does not need to artificially manufacture the flowing water drop, the power saving efficiency reaches over 75 percent.
In conclusion, the application example shows that the bubble collecting efficiency can be effectively improved, and the energy consumption can be effectively reduced in practical engineering in application.

Claims (10)

1. An air intake structure for a pressurized gas generating apparatus, comprising:
the gas collecting bin comprises a water storage space, and a gas collecting port and a water outlet which are communicated with the water storage space are formed in the outer wall of the water storage space;
the water pipe comprises a first end and a second end, the first end of the water pipe comprises at least one water inlet, the second end of the water pipe comprises a water outlet, the water inlet and the water outlet are communicated through the water pipe, the water outlet is arranged near the gas collecting opening, and the water inlet and the water outlet on the gas collecting bin have a position difference in the gravity direction;
and the control switch is arranged at the first end of the water pipe and used for controlling the water inflow to the water inlet in a timing mode.
2. The air inlet structure for a pressurized gas generating apparatus according to claim 1, wherein the control switch is a rotary switch connected to the first end of the water pipe, and the rotary switch is used to connect the water inlet of the first end of the water pipe with the water source at a timing.
3. The air inlet structure for a pressurized gas generating apparatus according to claim 1, wherein the first end of the water pipe further comprises an air inlet, and the air inlet is communicated with the water inlet;
the control switch is a valve switch, is arranged on the water inlet at the first end of the water pipe and is used for controlling the water inlet to be opened and closed at regular time;
the water inlet is communicated with a water source.
4. The air inlet structure for a pressurized gas generating apparatus according to any one of claims 1 to 3, wherein the water pipes are one or more groups of water guide pipes, and each group of water guide pipes comprises at least one water guide pipe, and the structure of each water guide pipe is identical to that of the water pipe.
5. A pressurised gas generating apparatus, comprising one or more gas inlet structures as claimed in any one of claims 1 to 4.
6. A pressurized gas generating apparatus according to claim 5, wherein when a plurality of said gas inlet structures are included, each of said gas inlet structures is connected in series.
7. A pressurized gas generating apparatus according to claim 6, wherein said parallel connection of said gas inlet structures comprises:
the gas inlet structures are sequentially arranged along the gravity direction, the gas collecting ports on the gas inlet structures are connected to a gas collecting pipeline through gas pipes, and the gas pipes are connected with one-way valves allowing gas to flow to the gas collecting pipeline.
8. A pressurized gas generating apparatus according to claim 5, wherein when a plurality of said gas inlet structures are included, each of said gas inlet structures is connected in parallel.
9. A pressurized gas generating apparatus according to claim 6, wherein said parallel connection of said gas inlet structures comprises:
the gas inlet structures are horizontally arranged side by side, and gas collecting ports on the gas inlet structures are connected to a gas collecting pipeline through gas pipes; the air pipe is connected with a one-way valve which allows air to flow to the air collecting pipeline.
10. A pneumatic apparatus comprising the pressurized gas generating apparatus according to any one of claims 5 to 9.
CN201922081671.6U 2019-11-28 2019-11-28 Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device Expired - Fee Related CN211666953U (en)

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CN201922081671.6U CN211666953U (en) 2019-11-28 2019-11-28 Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device

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Application Number Priority Date Filing Date Title
CN201922081671.6U CN211666953U (en) 2019-11-28 2019-11-28 Pneumatic equipment and pressurized gas generating device and gas inlet structure on pneumatic equipment and pressurized gas generating device

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