CN203202625U

CN203202625U - Positive and negative pressure protector

Info

Publication number: CN203202625U
Application number: CN 201320009629
Authority: CN
Inventors: 王英; 杨立华
Original assignee: BEIJING GERMAN-CHINESE GREEN ENERGY EQUIPMENT Co Ltd
Current assignee: BEIJING GERMAN-CHINESE GREEN ENERGY EQUIPMENT Co Ltd
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-09-18
Anticipated expiration: 2023-01-08

Abstract

The utility model discloses a positive and negative pressure protector, particularly comprising an air inlet pipe, a tee joint, a negative pressure valve, a gas-guide tube, an outer barrel, a bleeder, a content gauge and an overflow pipe, wherein a first port of the air inlet pipe is connected with a container to be protected; a second port of the air inlet pipe is connected with the first port of the tee joint; the second port of the tee joint is connected to an upper port of the negative pressure valve; the third port of the tee joint is connected with an air inlet of the gas-guide tube; the gas-guide tube is placed in a reverse L shape; the air inlet of the gas-guide tube is horizontally arranged; an air outlet of the gas-guide tube vertically extends downwards into the outer barrel; the outer wall of the gas-guide tube does not contact the inner wall of the outer barrel; the bleeder, the content gauge and the overflow pipe arranged on the outer barrel; the lower end of the bleeder is connected to the top surface of the outer barrel; the upper and lower ports of the content gauge are connected with the outer barrel; a housing of the content gauge is transparent; the overflow pipe is a steel extension tube and vertically arranged outside the outer barrel; the lower end of the overflow pipe and the outer lateral wall of the outer barrel are perforated; the upper end of the overflow pipe is directly communicated with external atmosphere.

Description

A kind of positive negative pressure protector

Technical field

The utility model relates to stored-gas container protection field, relates in particular to a kind of positive negative pressure protector.

Background technique

When waiting generation gas by fermentation for storage in the chargers such as membrane type gas holder and steel tank, because container itself or external environmental change will cause that other change in the tank body, cause potential safety hazard.Because tank body has the scope of necessarily bearing pressure for the gas in the jar, if the pressure of jar interior gas is lower than rated pressure, just needs to suck certain air and guarantee to hang the pressure of your gas within rated range; If the pressure of gas is higher than rated pressure in jar, just need to get rid of certain gas, reached the purpose of protection tank body.So need to install positive pressure protection device and the negative pressure protector that container is played a protective role at containers such as tank bodies; the positive pressure protection device is for protection container when gas pressure is higher than rated pressure in the container, and the negative pressure protector is for protection container when gas pressure is lower than rated pressure in the container.

In the prior art, the protector that has is that positive pressure protection device and negative pressure protector separate, and also having plenty of positive negative pressure protector is one, and integrated positive negative pressure protector can solve the big problem of floor space.

In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:

Though existing integrated positive negative pressure protector can reduce floor space, can not realize regulating easily container malleation size and vacuum magnitude, operation inconvenience.

The model utility content

For addressing the above problem; the utility model embodiment provides a kind of positive negative pressure protector; specifically comprise suction tude, threeway, negative pressure valve, air pipe, urceolus, exhaust stack, level meter and spill pipe; change height liquid seal by the length of regulating spill pipe; and then the size of container malleation is regulated in realization; realize regulating the size of container negative pressure by the angle of regulating threeway, change negative pressure valve; reach convenient purpose of regulating positive vacuum magnitude in the container, prevented that effectively container from being inhaled flat and spalling.

For achieving the above object, the utility model embodiment provides a kind of positive negative pressure protector, specifically comprises: suction tude, threeway, negative pressure valve, air pipe, urceolus, exhaust stack, level meter and spill pipe;

First port of suction tude connects the container that needs protection, and second port of suction tude connects first port of threeway; Second port of threeway connects the upper end-hole of negative pressure valve, and the 3rd port of threeway connects the suction port of air pipe; Negative pressure valve is the valve body of unidirectional conducting, only allows gas to enter in the tube from the external world, and the gas in the tube can't be discharged by negative pressure valve; Air pipe is inverted "L" shaped to be placed, the suction port horizontal positioned of air pipe, and the air outlet of air pipe extends in the urceolus vertically downward, and the outer wall of air pipe does not contact with the inwall of urceolus; Exhaust stack, level meter and spill pipe are installed on the urceolus; The lower end of exhaust stack is connected on the end face of urceolus; The two-port up and down of level meter all is connected with urceolus, and the shell of level meter is transparent; Spill pipe is the steel wire telescopic pipe, vertically is installed on the outside of urceolus, and the lower end of spill pipe and the outer side wall of urceolus run through, and the upper end of spill pipe directly communicates with ambient atmosphere.

Compared with prior art, embodiment of the present utility model has the following advantages:

Change height liquid seal by the length of regulating spill pipe, and then the size of container malleation is regulated in realization, realize regulating the size of container negative pressure by the angle of regulating threeway, change negative pressure valve, reach convenient purpose of regulating positive vacuum magnitude in the container, prevented that effectively container from being inhaled flat and spalling.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the composition structural representation of positive negative pressure protector among the utility model embodiment;

Fig. 2 is that the A-A of positive negative pressure protector among the utility model embodiment is to partial sectional view.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

Embodiment of the present utility model provides a kind of positive negative pressure protector, specifically comprises: suction tude 101, threeway 102, negative pressure valve 103, air pipe 104, urceolus 105, exhaust stack 106, level meter 107 and spill pipe 108;

Wherein, the first port one 01a of suction tude 101 connects the container that needs protection, and the second port one 01b of suction tude 101 connects the first port one 02a of threeway 102.

Threeway 102 is important structure that connect suction tude 101 and negative pressure valve 103, and the second port one 2b of threeway 102 connects the upper end-hole of negative pressure valve 103, and the 3rd port one 02c of threeway 102 connects the suction port 104a of air pipe 104.

Concrete, the first port one 02a of threeway 102 and the 3rd port one 02c of threeway 102 are on same horizontal line, and the horizontal line that the second port one 02b of threeway 102 and the above-mentioned first port one 02a and the 3rd port one 02c form is perpendicular.

And negative pressure valve 103 is the valve body of unidirectional conducting, and upper end-hole is connected with the second port one 02b of threeway 102, and lower end mouth is through hole, directly communicates with atmosphere.So 103 of negative pressure valves allow gas to enter in the tube from the external world, gas in the tube can't be discharged by negative pressure valve 103, to realize that negative pressure valve 103 is opened automatically when the gas pressure in the container is lower than rated pressure, ambient atmos enters container, because have the additional interior gas pressure of container that makes of gas to raise, negative pressure is adjusted.

Air pipe 104 is inverted "L" shaped and places, the suction port horizontal positioned of air pipe 104, port is connected with the 3rd port one 02c of threeway 102, and the air outlet of air pipe 104 extends in the urceolus 105 vertically downward, and the outer wall of air pipe 104 does not contact with the inwall of urceolus 105.

The diameter of air pipe 104 also is connected with pressure gauge 109 less than the diameter of urceolus 105 on air pipe 104, and the position that connects is positioned at air pipe 104 and is in the above part of urceolus 105 end faces, in order to show the size of container inner pressures by pressure gauge 109.

Urceolus 105 is pillar buoys of a sealing, and exhaust stack 106, level meter 107 and spill pipe 108 are installed;

Concrete, the lower end of exhaust stack 106 is connected on the end face of urceolus 105, and the upper end of exhaust stack is connected with screening water cover 1010, hides the area of water cover 1010 greater than the area of exhaust stack 106 cross sections.When the overpressure in the container, gas is discharged by exhaust stack 106.

The two-port up and down of level meter 107 all is connected with urceolus 105, and the shell of level meter 105 is transparent, can observe liquid height by level meter 107.

Concrete, the two-port up and down of level meter 107 all is connected specifically with urceolus 105 and comprises:

The following end interface 107a of level meter 107 is communicated with the lower end of urceolus 105; The upper end-hole 107b of level meter 107 is communicated with the upper end of urceolus 105.

Spill pipe 108 is the steel wire telescopic pipe, vertically is installed on the outside of urceolus 105, and the outer side wall of the lower end of spill pipe 108 and urceolus 105 runs through, and the upper end of spill pipe 108 directly communicates with ambient atmosphere.The length of spill pipe is adjustable, changes the height of fluid-tight by the length of regulating spill pipe, prevents superpressure, to realize the adjusting to malleation in the container.

Also comprise water filling hole 1011 on the end face of urceolus 105, water can be injected in urceolus 105 bodies by water filling hole.

Urceolus 105 is provided with evacuation port 1012 near the outer wall of bottom surface, and the height and position of evacuation port 1012 can be with outside the liquid and foreign material expelling tube in the urceolus 105 by evacuation port 1012 under the following end interface of level meter 107.

The concrete working principle of the positive negative pressure protector that provides in the present embodiment:

Suction tude 101 is connected with the container that needs protection, when the container pressure that needs protection increases, and surpass going up in limited time of rated pressure, gas enters into the cylindrical shell of urceolus 105 by suction tude 101, can be by regulating spill pipe 108 length, make gas discharge from exhaust stack 106, regulate the pressure of protection container by the height of regulating fluid-tight; When the pressure in the container reduces the formation negative pressure, negative pressure valve 103 will be opened automatically, and ambient atmos adds in the container, and by regulating threeway 102 angles, control negative pressure valve 103 changes the container negative pressure again, and positive/negative pressure is stable in the maintenance container.

The utility model has been realized following beneficial effect: change height liquid seal by the length of regulating spill pipe, and then the size of container malleation is regulated in realization easily, realize regulating easily the size of container negative pressure by the angle of regulating threeway, change negative pressure valve, reach convenient purpose of regulating positive vacuum magnitude in the container, prevented that effectively container from being inhaled flat and spalling.

The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a positive negative pressure protector is characterized in that, specifically comprises: suction tude, threeway, negative pressure valve, air pipe, urceolus, exhaust stack, level meter and spill pipe;

First port of described suction tude connects the container that needs protection, and second port of described suction tude connects first port of threeway; Second port of described threeway connects the upper end-hole of negative pressure valve, and the 3rd port of described threeway connects the suction port of air pipe; Described negative pressure valve is the valve body of unidirectional conducting, only allows gas to enter in the tube from the external world, and the gas in the tube can't be discharged by described negative pressure valve; Described air pipe is inverted "L" shaped to be placed, the suction port horizontal positioned of described air pipe, and the air outlet of described air pipe extends in the urceolus vertically downward, and the outer wall of described air pipe does not contact with the inwall of described urceolus; Exhaust stack, level meter and spill pipe are installed on the described urceolus; The lower end of described exhaust stack is connected on the end face of described urceolus; The two-port up and down of described level meter all is connected with described urceolus, and the shell of described level meter is transparent; Described spill pipe is the steel wire telescopic pipe, vertically is installed on the outside of described urceolus, and the lower end of described spill pipe and the outer side wall of described urceolus run through, and the upper end of described spill pipe directly communicates with ambient atmosphere.

2. the positive negative pressure protector described in claim 1 is characterized in that, first port of described threeway and the 3rd port of described threeway are on same horizontal line, and second port of described threeway is vertical with described horizontal line.

3. the positive negative pressure protector described in claim 1 is characterized in that, the lower end mouth of described negative pressure valve is through hole, is communicated with atmosphere.

4. the positive negative pressure protector described in claim 1 is characterized in that the diameter of described air pipe is less than the diameter of described urceolus.

5. the positive negative pressure protector described in claim 1 is characterized in that, is connected with pressure gauge on the described air pipe, and the position that connects is positioned at described air pipe and is in the above part of described urceolus end face.

6. the positive negative pressure protector described in claim 1 is characterized in that, the upper end of described exhaust stack is connected with the screening water cover, and the area of described screening water cover is greater than the area of described exhaust stack cross section.

7. the positive negative pressure protector described in claim 1 is characterized in that, the two-port up and down of described level meter all is connected specifically with described urceolus and comprises:

The following end interface of described level meter is communicated with the lower end of described urceolus; The upper end-hole of described level meter is communicated with the upper end of described urceolus.

8. the positive negative pressure protector described in claim 1 is characterized in that, also comprises water filling hole on the end face of described urceolus, and described urceolus is provided with evacuation port near the outer wall of bottom surface, and the height and position of described evacuation port is under the following end interface of described level meter.