CN209892469U

CN209892469U - Self priming pump gas tightness detection device

Info

Publication number: CN209892469U
Application number: CN201920578226.8U
Authority: CN
Inventors: 崔发革; 陈嘉刚
Original assignee: Dalian Shen Domain Fluid Machinery Co Ltd
Current assignee: Dalian Shen Domain Fluid Machinery Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-03
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a self-priming pump airtightness detection device, which comprises a detection device, wherein the detection device comprises a base, a high-pressure gas storage tank is fixedly connected to the base, a gas inlet device is arranged on the high-pressure gas storage tank, a pressure regulating valve and a gas inlet are arranged on the gas inlet device, a vent pipe is arranged on the gas inlet, and one end of the vent pipe, which is far away from the gas inlet, is connected with a self-priming pump; the self-priming pump comprises an inlet and an outlet, a channel is arranged between the inlet and the outlet, and an impeller is arranged in the channel. The detection device is arranged in the equipment, the high-pressure gas storage tank in the detection device inputs air pressure into a self-priming pump channel through a vent pipeline, the air tightness of the self-priming pump is detected through the reading of an observation pressure display meter, the gas input into the self-priming pump is helium, the helium is lubricating gas, sealing and other internal parts can be lubricated, the surface of the sealing plug is provided with a thread strip, and the sealing performance of the sealing plug is guaranteed to be also convenient to take out.

Description

Self priming pump gas tightness detection device

Technical Field

The utility model relates to an air tightness detects technical field, especially relates to a self priming pump gas tightness detection device.

Background

The self-priming pump is used for delivering clean water and other liquids with physical and chemical properties similar to that of the clean water, is suitable for industrial and urban water supply and drainage, pressurized water delivery of high-rise buildings, garden sprinkling irrigation, fire control pressurization, remote delivery, heating ventilation refrigeration cycle, cold and hot water circulation pressurization of bathrooms and the like and equipment matching, and in recent years, the technical level of domestic stainless steel self-priming pump products is greatly improved by introducing absorption, updating transformation and digestion innovation, and especially the matching products of some major technical equipment reach or approach the advanced level of international similar products. The self-priming pump is in the rising of china's rate of utilization, also pays more and more attention to the maintenance of self-priming pump equipment, and the self-priming pump is in the continuous wearing and tearing of long-time in-process internals, and lubricity can reduce between leakproofness and the spare part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the lubricity can reduce between inside part can constantly abrade, leakproofness and the spare part in long-time use of self priming pump, and providing a self priming pump gas tightness detection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a self-priming pump air tightness detection device comprises a detection device body, wherein the detection device body comprises a base, a high-pressure air storage tank is fixedly connected onto the base, an air inlet device is arranged on the high-pressure air storage tank, a pressure regulating valve and an air inlet are arranged on the air inlet device, an air inlet pipe is arranged on the air inlet, and one end, far away from the air inlet, of the air inlet pipe is connected with a self-priming pump; the self-priming pump comprises an inlet and an outlet, a channel is formed between the inlet and the outlet, an impeller is arranged in the channel, and the impeller is fixedly connected with a pump shaft.

Preferably, one end of the vent pipe close to the air inlet penetrates through a pressure display meter, the pressure display meter is fixedly connected to the high-pressure air storage tank, the vent pipe is communicated with a sensitive element in the pressure display meter, the pressure display meter conducts pressure deformation to the pointer through elastic deformation of the sensitive element in the meter and a conversion mechanism of a movement in the meter, and the pointer rotates to display pressure.

Preferably, the gas stored in the high-pressure gas storage tank is helium, the high-pressure gas storage tank is communicated with the gas inlet device through a pipeline, the pressure regulating valve regulates the flow of the input gas by regulating the caliber of the pipeline, and the helium is lubricating gas, so that sealing and other internal parts can be lubricated.

Preferably, a sealing plug is inserted into one end of the vent pipe, which is far away from the air inlet, the sealing plug is inserted into the channel through the inlet, and the vent pipe is communicated with the channel.

Preferably, the sealing plug adopts the nitrile rubber material, the surface of sealing plug is provided with the screw thread strip, the one end fixedly connected with handle of passageway is kept away from to the sealing plug, and the leakproofness of prior art detection interface at present often can not reach the standard, the utility model provides a sealing plug surface has set up screw thread strip and the inseparable laminating of passageway inner wall have not only guaranteed the leakproofness of interface, also accessible rotation the sealing plug is conveniently taken out to the handle.

Preferably, a check valve is arranged in the channel, the check valve is arranged at one end, close to the inlet, of the channel, a gas-liquid separation pipe is arranged in the channel, the gas-liquid separation pipe is arranged at one end, close to the outlet, of the channel, and the check valve needs to be opened and the gas-liquid separation pipe is closed in the detection process, so that the sealing performance is guaranteed.

Compared with the prior art, the utility model discloses possess following advantage:

the device is provided with a detection device, a high-pressure gas storage tank in the detection device conveys gas into a channel of the self-priming pump through a vent pipeline to input gas pressure, the gas tightness of the self-priming pump is detected by observing the reading of a pressure display meter, the gas input into the self-priming pump is helium, the helium is lubricating gas, and sealing and other internal parts can be lubricated; the sealing plug adopts the butadiene-acrylonitrile rubber material, and the sealing plug surface has set up the screw thread strip, has guaranteed that the leakproofness of sealing plug also conveniently takes out.

Drawings

Fig. 1 is a schematic structural view of a self-priming pump air tightness detection device provided by the utility model;

fig. 2 is an enlarged schematic view of the structure of part a of the present invention.

In the figure: the device comprises a detection device 1, a base 11, a high-pressure air storage tank 12, an air inlet device 13, a pressure regulating valve 14, an air inlet 15, a vent pipeline 16, a pressure display meter 17, a self-priming pump 2, an inlet 21, an outlet 22, a channel 23, an impeller 24, a pump shaft 25, a check valve 26, a gas-liquid separation pipe 27, a sealing plug 3, a threaded strip 31 and a handle 32.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 2, a self-priming pump airtightness detection device comprises a detection device 1, the detection device 1 comprises a base 11, a high-pressure gas storage tank 12 is fixedly connected to the base 11, a gas inlet device 13 is arranged on the high-pressure gas storage tank 12, a pressure regulating valve 14 and a gas inlet 15 are arranged on the gas inlet device 13, a vent pipeline 16 is arranged on the gas inlet 15, one end, far away from the gas inlet 15, of the vent pipeline 16 is connected with a self-priming pump 2, the gas inlet device 13 can increase gas with extremely low pressure to very high pressure, the driving gas pressure is less than or equal to 7bar, the pressure range of a gas inlet is 0.5-10bar, the maximum pressure can be increased to 90Mpa, the gas inlet device 13 adopts a taiwan frame CPT-1T standard gas-liquid pressurization cylinder, the air compressed gas is used as a power source, pascal energy conservation law is used for conversion, the principle of the air inlet device 13 is that under the condition that the pressure of the compressed gas is not changed, the stress area is changed, so that the pressure is increased, and under the condition that the pressure is not changed again, the stress area is changed, so that the pressure is increased to dozens of times; the self-priming pump 2 comprises an inlet 21 and an outlet 22, a channel 23 is arranged between the inlet 21 and the outlet 22, an impeller 24 is arranged in the channel 23, and the impeller 24 is fixedly connected with a pump shaft 25.

Referring to fig. 1, one end of an air duct 16 close to an air inlet 15 penetrates through a pressure display meter 17, the pressure display meter 17 is fixedly connected to a high-pressure air storage tank 12, the air duct 16 is communicated with a sensitive element in the pressure display meter 17, the pressure display meter 17 conducts pressure deformation to a pointer through elastic deformation of the sensitive element in the meter and then a conversion mechanism of a movement in the meter transmits the pressure deformation to the pointer, so that the pointer rotates to display pressure; the gas stored in the high-pressure gas storage tank 12 is helium, the high-pressure gas storage tank 12 is communicated with the gas inlet device 13 through a pipeline, and the flow of the input gas is adjusted by the pressure adjusting valve 14 through adjusting the diameter of the pipeline; a check valve 26 is provided in the passage 23, the check valve 26 is provided at an end of the passage 23 near the inlet 21, a gas-liquid separation pipe 27 is provided in the passage 23, and the gas-liquid separation pipe 27 is provided at an end of the passage 23 near the outlet 22.

Referring to fig. 2, a sealing plug 3 is inserted into one end of the vent pipe 16 away from the air inlet 15, the sealing plug 3 can be inserted into the passage 23 through the inlet 21, and the vent pipe 16 is communicated with the passage 23; the sealing plug 3 is made of nitrile rubber, a thread strip 31 is arranged on the surface of the sealing plug 3, and a handle 32 is fixedly connected to one end, far away from the channel 23, of the sealing plug 3.

Now, the operation principle of the present invention is described as follows:

the utility model discloses during the use rotatory sealing plug 3 fills in the passageway 23 with sealing plug 3, the leakproofness in the passageway 23 has been guaranteed with the 23 inner walls of passageway in close fitting of screw thread strip 31 on sealing plug 3 surface, open detection device 1 afterwards, helium in the high pressure gas holder 12 is carried to in the passageway 23 through air inlet unit 13 and breather pipe 16, helium is through arousing the elastic deformation of the sensitive component in the pressure display table 17, the shifter of core transmits pressure deformation to the pointer in the table again, arouse the pointer to rotate and come the display pressure, detect the gas tightness of self priming pump 2 with this; helium is lubricated type gas, can let sealed and other inside spare parts in the self priming pump 1 obtain the lubrication, also can maintain self priming pump 1 when detecting the 1 gas tightness of self priming pump.

In the present invention, unless otherwise expressly stated or limited, the terms "sliding", "rotating", "fixed", "provided", and the like are to be understood in a broad sense, e.g. as welded connections, as bolted connections, or as integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The self-priming pump air tightness detection device comprises a detection device (1) and is characterized in that the detection device (1) comprises a base (11), a high-pressure air storage tank (12) is fixedly connected to the base (11), an air inlet device (13) is arranged on the high-pressure air storage tank (12), a pressure regulating valve (14) and an air inlet (15) are arranged on the air inlet device (13), an air vent pipeline (16) is arranged on the air inlet (15), and one end, far away from the air inlet (15), of the air vent pipeline (16) is connected with a self-priming pump (2); self priming pump (2) are including import (21) and export (22), passageway (23) have been seted up between import (21) and export (22), be provided with impeller (24) in passageway (23), impeller (24) and pump shaft (25) fixed connection.

2. The self-primer pump airtightness detection apparatus according to claim 1, wherein an end of the vent pipe (16) near the air inlet (15) passes through a pressure display gauge (17), the pressure display gauge (17) is fixedly connected to the high-pressure air storage tank (12), and the vent pipe (16) is communicated with a sensitive element in the pressure display gauge (17).

3. The self-priming pump gas tightness detection device according to claim 1, wherein the gas stored in the high-pressure gas storage tank (12) is helium, the high-pressure gas storage tank (12) is communicated with the gas inlet device (13) through a pipeline, and the pressure regulating valve (14) regulates the flow rate of the input gas by regulating the diameter of the pipeline.

4. The self-priming pump airtightness detection device according to claim 1, wherein a sealing plug (3) is inserted into an end of the vent pipe (16) away from the air inlet (15), the sealing plug (3) is inserted into the channel (23) through the inlet (21), and the vent pipe (16) is communicated with the channel (23).

5. The self-priming pump airtightness detection device according to claim 4, wherein the sealing plug (3) is made of nitrile rubber, a threaded strip (31) is provided on the surface of the sealing plug (3), and a handle (32) is fixedly connected to one end of the sealing plug (3) far away from the channel (23).

6. The self-priming pump airtightness detection apparatus according to claim 1, wherein a check valve (26) is disposed in the passage (23), the check valve (26) is disposed at an end of the passage (23) close to the inlet (21), a gas-liquid separation pipe (27) is disposed in the passage (23), and the gas-liquid separation pipe (27) is disposed at an end of the passage (23) close to the outlet (22).