CN202598124U - Positive and negative pressure protector - Google Patents
Positive and negative pressure protector Download PDFInfo
- Publication number
- CN202598124U CN202598124U CN 201220246176 CN201220246176U CN202598124U CN 202598124 U CN202598124 U CN 202598124U CN 201220246176 CN201220246176 CN 201220246176 CN 201220246176 U CN201220246176 U CN 201220246176U CN 202598124 U CN202598124 U CN 202598124U
- Authority
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- China
- Prior art keywords
- pressure
- regulating tank
- negative pressure
- pressure regulating
- tank
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 230000006837 decompression Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 39
- 239000002775 capsule Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a positive and negative pressure protector which comprises a pressure adjusting tank communicated with an air storing device through a main pipeline, wherein a differential pressure transmitter electrically connected with a controller and a decompression valve communicated with a main pipeline through an auxiliary pipeline are respectively arranged on the main pipeline, and the controller is further electrically connected with an air outlet valve of the air storing device. A decompression pipe is arranged on the pressure adjusting tank, and a balancing pipe for balancing negative pressure of the air storing device is further arranged in the pressure adjusting tank. A partition board is arranged in the pressure adjusting tank and used for dividing an inner cavity of the pressure adjusting tank into an upper cavity and a lower cavity, and liquid is filled in the lower cavity. An air outlet of the main pipeline extends into the lower cavity, an air inlet of the decompression pipe is arranged in the upper cavity, an exhaust pipe with the bottom end immerged in the liquid in the lower cavity is arranged on the partition board, and the upper end of the exhaust pipe is communicated with the upper cavity. The positive and negative pressure protector can adjust system pressure of the air storing device well, ensures pressure to be normal in operation and operates safely.
Description
Technical field
The utility model relates to positive negative pressure protector, particularly a kind of positive negative pressure protector that is used to regulate the caisson system pressure.
Background technique
In biogas engineering and the sewage treatment project; Anaerobic fermentation tank, wet gasholder and bimodulus gas holder etc. are in the course of the work; Because the biogas use amount is not enough, cause the lasting rising of biogas pressure in fermenting tub and the gas storage holder, when surpassing certain value; Continue the security of operation of the internal pressure entail dangers to equipment of rising, at this moment just need too high pressure is laid down to guarantee the safety of equipment operation.When booster fan continues suction biogas; And the output of biogas is when not enough; Can form air feed, with the imbalance of gas, cause the equipment negative pressure in the time of seriously, atmospheric pressure can be anaerobic fermentation tank, wet gasholder and the extrusion-deformation of bimodulus gas holder; Cause the equipment profile to change and then cause biogas to leak, meet the naked light accident of blasting.And also do not have the positive negative pressure protector of reliable performance to guarantee equipment safety operation at present.
Summary of the invention
The technical problem that the utility model will solve provides a kind of system pressure that can regulate caisson, makes the positive negative pressure protector of its normal operation.
For solving the problems of the technologies described above; The utility model comprises the pressure regulating tank that is communicated with through main pipe with caisson; Main pipe is provided with respectively differential pressure transmitter that is electrically connected with controller and the Decompression valves that is communicated with it through auxilliary pipeline, and controller also is electrically connected with the gas outlet valve of caisson; The pressure regulating tank is provided with relief tube, also is provided with the balance tube that is used for balance caisson negative pressure in the pressure regulating tank; Pressure regulating tank inside is provided with dividing plate, and dividing plate is divided into upper chamber and lower chambers with pressure regulating tank inner chamber, and bottom chamber is equipped with liquid; Lower chambers is stretched in the air outlet of main pipe, and the suction port of relief tube is positioned at upper chamber, and dividing plate is provided with the submerge outlet pipe of bottom chamber liquid of its bottom, and the outlet pipe upper end connects with upper chamber.
After adopting said structure; When the caisson system pressure surpasses specified value; Differential pressure transmitter outputs signal to controller; Controller is controlled Decompression valves automatically and is opened pressure release, and while pressure regulating tank inner high voltage gas breaks through liquid resistance discharges from relief tube through outlet pipe entering upper chamber, makes the pressure in the caisson reduce to specified value; When the caisson system pressure is lower than certain value; Controller control is automatically closed the gas outlet valve of caisson; Simultaneity factor can be fallen negative-pressure balancing through the balance tube suck air, and inhaled air is disposed to the safe mixed gas limit when equipment starts once more, guarantees equipment operation safety.This device can well be regulated the system pressure of caisson, and pressure is normal when guaranteeing its operation, thereby makes its safe operation.
Said balance tube is a U type pipe, and its left Zhi Shangduan stretches out pressure and regulates tank level, and right Zhi Shangduan stretches out the pressure regulating tank, and the liquid that is used for fluid-tight is housed in the balance tube.
Said pressure regulating tank comprises upper tank body and the lower tank that connects as one through flange, at upper tank body and lower tank joint dividing plate is installed, and makes things convenient for the installation of equipment.
Liquid height is consistent with the bottom chamber liquid height in the said outlet pipe bottom liquid that submerges, balance tube, the required pressure of assurance fluid-tight.
Said pressure regulating tank is provided with level meter, can conveniently observe the liquid level that pressure is regulated pot liquid, and then guarantees equipment safety operation.
The pressure gauge of measuring lower chambers pressure is installed on the said pressure regulating tank, is convenient to viewing system pressure.
Said pressure gauge is a capsule pressure gauge, measures precisely.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the plan view of pressure regulating tank;
The schematic representation that Fig. 3 analyses and observe along the A-A line for pressure regulating tank upper tank body;
The schematic representation that Fig. 4 analyses and observe along the B-B line for pressure regulating tank upper tank body.
Embodiment
Extremely shown in Figure 4 like Fig. 1; Positive negative pressure protector comprises the pressure regulating tank 2 that is communicated with through main pipe 1 with caisson; Main pipe 1 is provided with respectively with the differential pressure transmitter 3 of controller electrical connection and through assisting the Decompression valves 5 that pipeline 4 is communicated with it; Controller also is electrically connected with the gas outlet valve of caisson, and wherein Decompression valves 5 is solenoid valve with gas outlet valve, and the controller of this device is the PLC controller; Pressure regulating tank 2 is provided with relief tube 6, also is provided with the balance tube 7 that is used for balance caisson negative pressure in the pressure regulating tank 2; Pressure regulating tank 2 inside are provided with dividing plate 8, and dividing plate 8 is divided into upper chamber 21 and lower chambers 22 with pressure regulating tank 2 inner chambers, are equipped with in the lower chambers 22 not only to can be used as fluid-tight but also be used for antifreeze liquid, and liquid can add from the filling opening 13 of pressure regulating tank 2 tops here; Lower chambers 22 is stretched in the air outlet of main pipe 1, and the suction port of relief tube 6 is positioned at upper chamber 21, and dividing plate 8 is provided with the submerge outlet pipe 9 of liquid in the lower chambers 22 of its bottom, outlet pipe 9 upper ends and upper chamber's 21 perforations, and outlet pipe 9 bottoms are provided with exhaust port 14.Balance tube 7 is a U type pipe, and its left Zhi Shangduan stretches out liquid level in the pressure regulating tank 2, and right Zhi Shangduan stretches out pressure regulating tank 2, and in the balance tube 7 liquid that is used for fluid-tight is housed.The outlet pipe 9 bottoms liquid 200mm that submerges, in the balance tube 7 in liquid heights and the lower chambers 22 liquid heights consistent, the required pressure of assurance fluid-tight.
Pressure regulating tank 2 comprises the upper tank body 221 and lower tank 222 that connects as one through flange 10, in upper tank body 221 and lower tank 222 joints dividing plate 8 is installed, and makes things convenient for the installation of equipment.Pressure regulating tank 2 is provided with level meter 11, can conveniently observe the liquid level that pressure is regulated pot liquid, and then guarantees equipment safety operation.Pressure regulating tank 2 tops are equipped with the pressure gauge 12 of measuring lower chambers 22 pressure, and pressure gauge 12 is convenient to viewing system pressure for measuring capsule pressure gauge accurately.The system pressure of caisson is-300Pa～2000Pa to make the caisson safe operation.
When the caisson system pressure surpasses 2000Pa; Differential pressure transmitter 3 outputs signal to the PLC controller; The PLC controller is controlled Decompression valves 5 automatically and is opened pressure release; While pressure regulating tank 2 inner high voltage gases break through liquid resistance and get into upper chamber 21 from relief tube 6 discharges through outlet pipe 9, make the pressure in the caisson reduce to 2000Pa; When the caisson system pressure be lower than-during 300Pa; PLC controller control is automatically closed the gas outlet valve of caisson; Simultaneity factor can be fallen negative-pressure balancing through balance tube 7 suck air; Liquid height in the balance tube 7 is controlled at specified value all the time, and inhaled air is disposed to the safe mixed gas limit when equipment starts once more, guarantees equipment operation safety.This device can well be regulated the system pressure of caisson, and pressure is normal when guaranteeing its operation, thereby makes its safe operation.
Claims (7)
1. positive negative pressure protector; It is characterized in that comprising the pressure regulating tank (2) that is communicated with through main pipe (1) with caisson; Main pipe (1) is provided with respectively the differential pressure transmitter (3) that is electrically connected with controller and through assisting the Decompression valves (5) that pipeline (4) is communicated with it, controller also is electrically connected with the gas outlet valve of caisson; Pressure regulating tank (2) is provided with relief tube (6), also is provided with the balance tube (7) that is used for balance caisson negative pressure in the pressure regulating tank (2); Pressure regulating tank (2) inside is provided with dividing plate (8), and dividing plate (8) is divided into upper chamber (21) and lower chambers (22) with pressure regulating tank (2) inner chamber, and lower chambers is equipped with liquid in (22); Lower chambers (22) is stretched in the air outlet of main pipe (1); The suction port of relief tube (6) is positioned at upper chamber (21); Dividing plate (8) is provided with the submerge outlet pipe (9) of the interior liquid of lower chambers (22) of its bottom, and outlet pipe (9) upper end connects with upper chamber (21).
2. positive negative pressure protector according to claim 1; It is characterized in that said balance tube (7) is a U type pipe; Its left Zhi Shangduan stretches out the interior liquid level of pressure regulating tank (2), and right Zhi Shangduan stretches out pressure regulating tank (2), and in the balance tube (7) liquid that is used for fluid-tight is housed.
3. positive negative pressure protector according to claim 1; It is characterized in that said pressure regulating tank (2) comprises upper tank body (221) and the lower tank (222) that connects as one through flange (10), is equipped with dividing plate (8) at upper tank body (221) and lower tank (222) joint.
4. according to each described positive negative pressure protector of claim 1 to 3, it is characterized in that said outlet pipe (9) the bottom liquid that submerges, the interior liquid height of balance tube (7) is consistent with the interior liquid height of lower chambers (22).
5. positive negative pressure protector according to claim 4 is characterized in that said pressure regulating tank (2) is provided with level meter (11).
6. positive negative pressure protector according to claim 5 is characterized in that being equipped with on the said pressure regulating tank (2) pressure gauge (12) of measuring lower chambers (22) pressure.
7. positive negative pressure protector according to claim 6 is characterized in that said pressure gauge (12) is a capsule pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246176 CN202598124U (en) | 2012-05-29 | 2012-05-29 | Positive and negative pressure protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246176 CN202598124U (en) | 2012-05-29 | 2012-05-29 | Positive and negative pressure protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598124U true CN202598124U (en) | 2012-12-12 |
Family
ID=47315663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220246176 Expired - Fee Related CN202598124U (en) | 2012-05-29 | 2012-05-29 | Positive and negative pressure protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202598124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524916A (en) * | 2017-10-20 | 2017-12-29 | 上海林海生态技术股份有限公司 | A kind of gas tiny structure detection and safe discharge equipment |
| CN110388356A (en) * | 2019-08-12 | 2019-10-29 | 广州纳捷环保科技有限公司 | A kind of hydraulic balance system |
-
2012
- 2012-05-29 CN CN 201220246176 patent/CN202598124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524916A (en) * | 2017-10-20 | 2017-12-29 | 上海林海生态技术股份有限公司 | A kind of gas tiny structure detection and safe discharge equipment |
| CN107524916B (en) * | 2017-10-20 | 2019-12-03 | 上海林海生态技术股份有限公司 | A gas micro-negative pressure detection and safety discharge device |
| CN110388356A (en) * | 2019-08-12 | 2019-10-29 | 广州纳捷环保科技有限公司 | A kind of hydraulic balance system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG MINGSHUO NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: WEIFANG MINGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 262601 Yang Industry Park, Linqu County, Shandong, Weifang Patentee after: Shandong Mingshuo New Energy Technology Co., Ltd. Address before: 262601 Yang Industry Park, Linqu County, Shandong, Weifang Patentee before: Weifang Mingshuo Environmental Protection Equipment Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |