CN213574644U - Air suction prevention buffer device and pump suction device - Google Patents
Air suction prevention buffer device and pump suction device Download PDFInfo
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- CN213574644U CN213574644U CN202021864516.8U CN202021864516U CN213574644U CN 213574644 U CN213574644 U CN 213574644U CN 202021864516 U CN202021864516 U CN 202021864516U CN 213574644 U CN213574644 U CN 213574644U
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Abstract
The utility model discloses a buffer and pump suction means are inhaled to air defense relates to pumping equipment technical field, and wherein air defense inhales buffer and includes buffer tank, inlet tube, drain pipe. The buffer tank is provided with water inlet and delivery port, and the water inlet is higher than the delivery port, and the volume between inside water inlet of buffer tank and the delivery port is effective volume, and the buffer tank upper end is higher than the water inlet, and the volume of the inside water inlet top of buffer tank is buffer volume, and buffer volume and effective volume ratio are 1/3 to 1 between. The water inlet is connected to inlet tube one end, and the other end is arranged in inserting the liquid of treating the suction, and the inside volume of inlet tube is the pipeline volume, and effective volume is greater than the pipeline volume. One end of the drain pipe is connected with the water outlet. According to the utility model discloses a buffer is inhaled to air defense realizes reducing and pumps device potential safety hazard, reduces intensity of labour.
Description
Technical Field
The utility model relates to a in pumping equipment technical field, in particular to buffer and pump suction unit are inhaled to air defense.
Background
In sewage stations, municipal and underground garage drainage systems, automatic liquid level control drainage is often designed, and in order to prevent the phenomenon of suction during the operation of a pump, a check valve is installed at the bottom of a water suction port of the pump, so that a suction pipe needs to be filled with water manually when the pump works. However, as the suction pipe section provided with the check valve cannot ensure complete sealing, the liquid level of the suction pipeline is reduced due to too long residence time, water needs to be manually poured when the suction pipeline is restarted, and otherwise the pump burns out in no-load mode.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a buffer and pump suction means are inhaled to air defense can avoid all needing manual watering when restarting after shutting down at every turn, not only reduces intensity of labour, has improved efficiency, but also can prevent that the pump from idling and damaging.
According to the utility model discloses a buffer is inhaled in air defense of first aspect embodiment, include: a buffer tank, the buffer tank is provided with water inlet and delivery port, the water inlet is higher than the delivery port, inside the buffer tank the water inlet with volume between the delivery port is effective volume V1The upper end of the buffer tank is higher than the water inlet, and the volume above the water inlet inside the buffer tank is a buffer volume V2Said buffer volume V2And the effective volume V1The ratio is between 1/3 and 1; one end of the water inlet pipe is connected with the water inlet, and the other end of the water inlet pipe is used for being inserted into liquid to be pumped; the volume of the inside of the water inlet pipe is the volume V of the pipeline3Said effective volume V1Greater than the volume V of the pipeline3(ii) a And one end of the drain pipe is connected with the water outlet.
According to the utility model discloses buffer is inhaled to air defense has following technological effect at least: when adopting above-mentioned buffer prevents empty suction, the other end of accessible drain pipe is connected to the elevator pump on, need fill the surge tank during the use for the first time, after the elevator pump starts, because sealed reason, the air will be stayed to the upper segment in the inlet tube, along with the start-up of elevator pump, the air in the inlet tube will enter into the surge tank from the water inlet, because the delivery port is less than the water inlet, and because air density is low, will be stayed the top at the surge tank after the air gets into the surge tank, and the water of storage between surge tank water inlet and delivery port will be sucked in the elevator pump, and because effective volume V1Greater than the volume V of the pipeline3Therefore, after air enters the buffer tank, the buffer tank can be ensured to have water above the water outlet, and the problem of air suction of the lift pump is avoided; when the air in the water inlet pipe completely enters the buffer tank, the lift pump pumps water from the water outlet, and negative pressure is generated in the buffer tank, so that external liquid continuously enters the buffer tank through the water inlet pipe for supplement, and continuous water pumping is realized; when the lift pump stops working, due to the inertia of the pump blades, a certain volume of water can be pumped out by the lift pump in the deceleration process, and the buffer volume V is used2And buffer volume V2And effective volume V1The ratio is 1/3 to 1, and the water of buffer tank upper end can guarantee to fill lift pump out-of-service in-process discharged water to avoid when the lift pump is started next time, the liquid level in the buffer tank is less than the water inlet, thereby when guaranteeing to start next time, need not to irrigate once more.
According to the utility model discloses a some embodiments, the buffer tank upper end is equipped with moisturizing pipe.
According to some embodiments of the utility model, the moisturizing valve is installed to the moisturizing pipe.
According to some embodiments of the utility model, the buffer tank upper end is equipped with the evacuation pipe.
According to some embodiments of the invention, the evacuation pipe is fitted with an evacuation valve.
According to the utility model discloses a some embodiments, the inlet tube is including vertical section and horizontal segment, the horizontal segment sets up vertical section upper end and connection the water inlet, the lower extreme of vertical section is arranged in inserting the liquid of treating the suction.
According to some embodiments of the invention, the vertical section setting has at least one.
A pumping unit according to an embodiment of the second aspect of the present invention comprises a lift pump; a buffer tank, the buffer tank is provided with water inlet and delivery port, the water inlet is higher than the delivery port, inside the buffer tank the water inlet with volume between the delivery port is effective volume V1The upper end of the buffer tank is higher than the water inlet, and the volume above the water inlet inside the buffer tank is a buffer volume V2Said buffer volume V2And the effective volume V1The ratio is between 1/3 and 1; one end of the water inlet pipe is connected with the water inlet, and the other end of the water inlet pipe is used for being inserted into liquid to be pumped; the volume of the inside of the water inlet pipe is the volume V of the pipeline3Said effective volume V1Greater than the volume V of the pipeline3(ii) a And the two ends of the drain pipe are respectively connected with the water outlet and the lifting pump.
According to the utility model discloses pump suction device has following beneficial effect at least: by adopting the air suction prevention buffer device, the lift pump can be prevented from being damaged due to the air suction phenomenon, and the manual irrigation is not needed when the lift pump is started again, so that the labor intensity is reduced, and the efficiency is improved.
According to some embodiments of the utility model, the highest point of the outlet pipe of elevator pump is higher than the surge tank the water inlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a connection structure of an anti-empty suction buffering device and a lift pump according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure between the anti-empty suction buffering device and the lift pump according to another embodiment of the present invention.
Reference numerals:
a buffer tank 100; a water inlet pipe 102; a drain pipe 103; a water replenishing pipe 104; an evacuation pipe 105; a water replenishment valve 106; an evacuation valve 107; a lift pump 200; and a water outlet pipe 201.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated in relation to the orientation description, such as up, down, left, right, front, rear, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
An anti-empty suction buffer device and a pumping device according to an embodiment of the present invention will be described below with reference to fig. 1 and 2.
As shown in FIG. 1, according to the utility model discloses buffer is inhaled to air defense, including buffer tank 100, buffer tank 100 is provided with water inlet and delivery port, and the water inlet is higher than the delivery port, and the volume between the inside water inlet of buffer tank 100 and the delivery port is effective volume V1The upper end of the buffer tank 100 is higher than the water inlet, and the volume above the water inlet inside the buffer tank 100 is a buffer volume V2Buffer volume V2And effective volume V1The ratio is between 1/3 and 1; one end of the water inlet pipe 102 is connected with the water inlet, and the other end of the water inlet pipe is used for being inserted into liquid to be pumped; the volume inside the inlet pipe 102 is the pipe volume V3Effective volume V1Greater than the volume V of the pipeline3(ii) a One end of the water discharge pipe 103 is connected with the water outlet.
When adopting above-mentioned buffer prevents empty and inhale, the other end of accessible drain pipe 103 is connected to lift pump 200 on, need fill buffer tank 100 when using for the first time, lift pump 200 starts the back, because sealed reason, the air will be stayed to the upper segment in inlet tube 102, along with lift pump 200's start-up, the air in inlet tube 102 will be followed the water inlet and entered into in buffer tank 100, because the delivery port is less than the water inlet, and because air density is low, the air will be stayed the top of buffer tank 100 after entering buffer tank 100, and the water of storage between buffer tank 100 water inlet and delivery port will be sucked in lift pump 200, and because effective volume V1Greater than the volume V of the pipeline3Therefore, after the air enters the buffer tank 100, the buffer tank 100 can be ensured to have water above the water outlet, so that the problem of air suction of the lift pump 200 is avoided; after the air in the water inlet pipe 102 completely enters the buffer tank 100, negative pressure is generated in the buffer tank 100 due to the fact that the lift pump 200 pumps water from the water outlet, so that external liquid can continuously enter the buffer tank 100 through the water inlet pipe 102 for supplement, and continuous water pumping is achieved; when the lift pump 200 stops working, due to the inertia of the pump blades, the lift pump 200 will pump a certain volume of water during deceleration,at this time, the water inflow of the buffer tank 100 is less than the water outflow, and the buffer volume V is used2And buffer volume V2And effective volume V1The ratio is 1/3 to 1, and the water on the upper end of the buffer tank 100 can be ensured to fill the water discharged in the shutdown process of the lift pump 200, so that the liquid level in the buffer tank 100 is prevented from being lower than the water inlet when the lift pump 200 is started next time, and the water is not required to be refilled when the lift pump is started next time.
In some embodiments of the present invention, the buffer tank 100 is provided with a water replenishing pipe 104 at the upper end. When the anti-empty suction buffer device is used for the first time, the buffer tank 100 needs to be filled with water through the water replenishing pipe 104 arranged at the upper end of the buffer tank 100. When the time for using the air-suction-preventing buffer device is too long last time, the manual point inspection intervention is required to be performed regularly by considering a plurality of factors such as evaporation loss of water in the buffer tank 100, and if the time is too long, the water in the buffer tank 100 can be supplemented through the water supplementing pipe 104, so that stable production is achieved.
In some embodiments of the present invention, the make-up water pipe 104 is equipped with a make-up water valve 106. The make-up water valve 106 needs to be opened before the make-up water line 104 is used. After the water replenishing pipe 104 is used, the water replenishing valve 106 needs to be closed in time, so that the buffer tank 100 is not communicated with the outside through the water replenishing pipe 104 when the air suction prevention buffer device is used.
In some embodiments of the present invention, the upper end of the buffer tank 100 is provided with an emptying pipe 105. When water is replenished to the buffer tank 100, the upper end of the buffer tank 100 needs to be opened to be provided with the emptying pipe 105, in the water replenishing process, whether the buffer tank 100 is in a full water state is judged by judging whether the emptying valve 107 has water overflow, and when the emptying valve 107 has water overflow, the buffer tank 100 is indicated to be full of water.
In some embodiments of the present invention, the evacuation pipe 105 is fitted with an evacuation valve 107. Before the evacuation pipe 105 is used, the evacuation valve 107 needs to be opened. After the emptying pipe 105 is used, the emptying valve 107 needs to be closed in time to ensure that the buffer tank 100 is not communicated with the outside through the emptying pipe 105 when the anti-empty suction buffer device is used.
In some embodiments of the present invention, the water inlet pipe 102 includes a vertical section and a horizontal section, and the horizontal section is disposed at the upper end of the vertical section and connected to the water inlet. When the air suction prevention buffer device works, the horizontal section is arranged at the upper end of the vertical section and is connected with the water inlet, and the lower end of the vertical section needs to be inserted into liquid to be sucked.
In some embodiments of the present invention, there is at least one vertical segment arrangement. Specifically, only one vertical section of the inlet pipe 102 may be provided, as shown in fig. 1, in one embodiment of the present invention, only one vertical section of the inlet pipe 102 is provided; certainly, in order to increase the liquid pumping speed, a plurality of vertical sections of the water inlet pipe 102 can be arranged, so that the water inlet amount of the water inlet pipe 102 is increased, and the water pumping efficiency of the buffer tank 100 is improved; as shown in fig. 2, in another embodiment of the present invention, 2 vertical sections of the inlet pipe 102 are provided.
In some embodiments of the present invention, the cross-section of the buffer tank 100 and the water inlet pipe 102 is circular, and the radius of the cross-section of the buffer tank 100 is R, and the height difference h from the water inlet to the water outlet1The height difference from the water inlet to the top of the buffer tank 100 is h2The radius of the cross section of the water inlet pipe 102 and the water outlet pipe 103 is r, the length of the horizontal section is L, the number of the vertical sections is N (N is more than or equal to 1), and the length of the vertical section is h3Wherein the effective volume V1＝π*R2*h1Buffer volume V2＝π*R2*h2Volume V of pipeline3＝π*r2*(L+N*h3) (ii) a Therefore, when the anti-air suction buffer device is arranged, pi R is required to be ensured2*h1＞π*r2*(L+N*h3) And h is2Is h11/3 to 1, i.e. 1/3h1≤h2≤h1。
According to the pumping device of the second aspect of the present invention, referring to fig. 1, the anti-empty-suction buffer device of the first aspect of the present invention comprises a lift pump 200, and the end of the drain pipe 103 away from the buffer tank 100 is connected to the lift pump 200. Through adopting above-mentioned utility model first aspect embodiment's air defense to inhale buffer can prevent that the lift pump 200 from the phenomenon of air defense and damaging to need not the manual work when guaranteeing to open lift pump 200 once more and watering.
In some embodiments of the present invention, the highest point of the outlet pipe 201 of the lift pump 200 is higher than the water inlet of the buffer tank 100. After the lift pump 200 stops operating, water in the water outlet pipe 201 of the lift pump 200 can flow back into the lift pump 200, and the lift pump 200 can be prevented from idling and being damaged in the process that the lift pump 200 stops operating.
The anti-empty suction buffer device and the pumping device according to the embodiment of the present invention will be described in detail with a specific embodiment with reference to fig. 1 and 2. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.
As shown in fig. 1, a water replenishing pipe 104 and an emptying pipe 105 are arranged at the upper end of the buffer tank 100, a water replenishing valve 106 is arranged on the water replenishing pipe 104, an emptying valve 107 is arranged on the emptying pipe 105, the buffer tank 100 is provided with a water inlet and a water outlet, the water inlet is higher than the water outlet, and the volume between the water inlet and the water outlet inside the buffer tank 100 is an effective volume V1The upper end of the buffer tank 100 is higher than the water inlet, and the volume above the water inlet inside the buffer tank 100 is a buffer volume V2Buffer volume V2And effective volume V1The ratio is between 1/3 and 1. The inlet pipe 102 has one end connected to the water inlet and the other end for inserting into the liquid to be pumped. The volume inside the inlet pipe 102 is the pipe volume V3Effective volume V1Greater than the volume V of the pipeline3. The both ends of drain pipe 103 are connected delivery port and elevator pump 200 respectively, and the highest point of outlet pipe 201 of elevator pump 200 is higher than the water inlet of buffer tank.
The water inlet pipe 102 comprises 2 vertical sections and horizontal sections, and the horizontal sections are arranged at the upper ends of the two vertical sections and are connected with the water inlets; the cross sections of the buffer tank 100 and the water inlet pipe 102 are both circular, the radius of the cross section of the buffer tank 100 is R, and the height difference h from the water inlet to the water outlet1The height difference from the water inlet to the top of the buffer tank 100 is h2The radius of the cross section of the water inlet pipe 102 and the water outlet pipe 103 is r, the length of the horizontal section is L, the number of the vertical sections is N (N is more than or equal to 1), and the length of the vertical section is h3Wherein the effective volume V1＝π*R2*h1Buffer volume V2＝π*R2*h2Volume of pipelineV3＝π*r2*(L+N*h3) (ii) a Therefore, when the anti-air suction buffer device is arranged, pi R is required to be ensured2*h1＞π*r2*(L+N*h3) And h is2Is h11/3 to 1, i.e. 1/3h1≤h2≤h1。
According to the utility model discloses buffer and pump suction means are inhaled to air defense, through so setting up, can reach some effects as follows at least:
when the anti-empty suction buffer device is used for the first time, the water supplementing valve 106 and the emptying valve 107 need to be opened, the buffer tank 100 is filled with water through the water supplementing pipe 104 arranged at the upper end of the buffer tank 100, when the emptying pipe 105 has water to burst out, the buffer tank 100 is filled with water, the water supplementing valve 106 and the emptying valve 107 are closed, and the buffer tank 100 is ensured not to be communicated with the outside through the water supplementing pipe 104 and the emptying pipe 105. Before starting the lift pump 200, ensure that the water inlet is connected to inlet tube 102 one end, the other end is arranged in inserting the liquid of treating the suction, the delivery port is connected to drain pipe 103 one end, the other end is connected to the lift pump 200, after the lift pump 200 starts, because sealed reason, the air will be left to the upper segment in inlet tube 102, along with the start-up of lift pump 200, the air in inlet tube 102 will be followed the water inlet and entered into in the buffer tank 100, because the delivery port is less than the water inlet, and because air density is low, the air will be left above the buffer tank 100 after entering the buffer tank 100, and the water of storage between buffer tank 100 water inlet and delivery port will be sucked to the lift pump 200, and because effective volume V1Greater than the volume V of the pipeline3Therefore, after the air enters the buffer tank 100, the buffer tank 100 can be ensured to have water above the water outlet, so that the problem of air suction of the lift pump 200 is avoided; after the air in the water inlet pipe 102 completely enters the buffer tank 100, negative pressure is generated in the buffer tank 100 due to the fact that the lift pump 200 pumps water from the water outlet, so that external liquid can continuously enter the buffer tank 100 through the water inlet pipe 102 for supplement, and continuous water pumping is achieved; when the lift pump 200 stops working, the lift pump 200 will still pump a certain volume of water during the deceleration process due to the inertia of the pump blade, and at this time, the water inflow of the buffer tank 100 will beLess than the water yield by means of the buffer volume V2And buffer volume V2And effective volume V1The ratio is 1/3 to 1, and the water on the upper end of the buffer tank 100 can be ensured to fill the water discharged in the shutdown process of the lift pump 200, so that the liquid level in the buffer tank 100 is prevented from being lower than the water inlet when the lift pump 200 is started next time, and the water is not required to be refilled when the lift pump is started next time.
In the description herein, references to the description of the term "one embodiment," "some embodiments," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a buffer is inhaled to air defense which characterized in that includes:
the buffer tank is provided with a water inlet and a water outlet, the water inlet is higher than the water outlet, the volume between the water inlet and the water outlet inside the buffer tank is an effective volume, the upper end of the buffer tank is higher than the water inlet, the volume above the water inlet inside the buffer tank is a buffer volume, and the ratio of the buffer volume to the effective volume is 1/3-1;
one end of the water inlet pipe is connected with the water inlet, and the other end of the water inlet pipe is used for being inserted into liquid to be pumped; the volume of the inside of the water inlet pipe is the pipe volume, and the effective volume is larger than the pipe volume;
and one end of the drain pipe is connected with the water outlet.
2. The air suction prevention buffer device as claimed in claim 1, wherein a water replenishing pipe is arranged at the upper end of the buffer tank.
3. The air suction prevention buffer device as claimed in claim 2, wherein the water replenishing pipe is provided with a water replenishing valve.
4. The air suction prevention buffer device as claimed in claim 1, wherein an emptying pipe is provided at an upper end of the buffer tank.
5. The air suction prevention buffer device as claimed in claim 4, wherein the evacuation pipe is provided with an evacuation valve.
6. The air suction prevention buffer device as claimed in claim 1, wherein the water inlet pipe comprises a vertical section and a horizontal section, the horizontal section is arranged at the upper end of the vertical section and connected with the water inlet, and the lower end of the vertical section is used for being inserted into the liquid to be sucked.
7. The air suction prevention cushioning device of claim 6, wherein at least one of said vertical segments is provided.
8. A pumping unit, comprising:
a lift pump;
the buffer tank is provided with a water inlet and a water outlet, the water inlet is higher than the water outlet, the volume between the water inlet and the water outlet inside the buffer tank is an effective volume, the upper end of the buffer tank is higher than the water inlet, the volume above the water inlet inside the buffer tank is a buffer volume, and the ratio of the buffer volume to the effective volume is 1/3-1;
one end of the water inlet pipe is connected with the water inlet, and the other end of the water inlet pipe is used for being inserted into liquid to be pumped; the volume of the inside of the water inlet pipe is the pipe volume, and the effective volume is larger than the pipe volume;
and the two ends of the drain pipe are respectively connected with the water outlet and the lifting pump.
9. A pumping apparatus as claimed in claim 8, wherein the outlet pipe of the lift pump has a higher maximum point than the inlet port of the buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021864516.8U CN213574644U (en) | 2020-08-31 | 2020-08-31 | Air suction prevention buffer device and pump suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021864516.8U CN213574644U (en) | 2020-08-31 | 2020-08-31 | Air suction prevention buffer device and pump suction device |
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| Publication Number | Publication Date |
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| CN213574644U true CN213574644U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021864516.8U Active CN213574644U (en) | 2020-08-31 | 2020-08-31 | Air suction prevention buffer device and pump suction device |
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| CN (1) | CN213574644U (en) |
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2020
- 2020-08-31 CN CN202021864516.8U patent/CN213574644U/en active Active
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