CN111779978A - Special flow difference sensor for methane - Google Patents
Special flow difference sensor for methane Download PDFInfo
- Publication number
- CN111779978A CN111779978A CN202010634779.8A CN202010634779A CN111779978A CN 111779978 A CN111779978 A CN 111779978A CN 202010634779 A CN202010634779 A CN 202010634779A CN 111779978 A CN111779978 A CN 111779978A
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- China
- Prior art keywords
- biogas
- fixed
- methane
- flow difference
- barrel
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Abstract
The invention relates to the technical field of flow difference sensing equipment, in particular to a special flow difference sensor for methane, which comprises a lower barrel, wherein a methane inlet is fixed on one side of the lower barrel, a stop valve is arranged in the methane inlet, a methane outlet is fixed on the other side of the lower barrel, an upper barrel is fixed on the top of the lower barrel, an upper buoy is arranged in the lower barrel, and the upper buoy is made of polypropylene. According to the invention, through the mutual matching of the lower barrel body, the upper buoy, the sliding contact linear rheostat and the analog quantity conversion transmitter, when the tail end methane using equipment cannot be provided with a methane gas storage cabinet, the device can obtain the flow difference between the flow of the produced methane at the front end and the flow of the tail end using equipment and provide the flow difference to the PLC system of the methane using equipment, so that the PLC system of the methane using equipment can control and adjust the combustion quantity of the boiler according to the flow difference, the combustion quantity of the boiler is equivalent to the flow of the produced methane at the front end, and the tail end methane using equipment can normally and stably operate.
Description
Technical Field
The invention relates to the technical field of flow difference sensing equipment, in particular to a special flow difference sensor for methane.
Background
In the field of biogas energy utilization, some practical sites are limited by conditions and cannot be provided with biogas storage cabinets, so that tail-end biogas use equipment cannot acquire the biogas production flow of the front end, the combustion amount of a PLC (programmable logic controller) control and adjustment boiler is influenced, and the normal and stable operation of the tail-end biogas use equipment is further influenced.
Disclosure of Invention
The invention aims to provide a flow difference sensor special for methane, and aims to solve the problems that when a methane gas storage cabinet cannot be installed, tail-end methane using equipment cannot obtain the methane production flow of front-end methane, the combustion amount of a boiler is controlled and adjusted by a PLC (programmable logic controller), and the normal and stable operation of the tail-end methane using equipment is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a special flow difference sensor for biogas comprises a lower barrel, wherein a biogas inlet is fixed on one side of the lower barrel, a stop valve is arranged in the biogas inlet, a biogas outlet is fixed on the other side of the lower barrel, an upper barrel is fixed on the top of the lower barrel, an upper buoy is arranged in the lower barrel, guide rails are fixed on two sides of the lower barrel, and sliding grooves are formed in two sides of the upper buoy;
the top of going up the flotation pontoon bonds and has the bracing piece, the opposite side at bracing piece top is fixed with first regulating plate, the opposite side of bracing piece and the bottom that is located first regulating plate are fixed with the second regulating plate, the inside opposite side of going up the barrel is fixed with the connecting plate, one side of connecting plate is fixed with the wiping straight line rheostat and analog quantity conversion changer from one end to the other end in proper order, just analog quantity conversion changer is located the one end of wiping straight line rheostat.
Preferably, the lower cylinder body and the upper cylinder body are matched with the sliding groove through a guide rail to be in sliding connection.
Preferably, the upper buoy is made of polypropylene.
Preferably, the support rod and the first adjusting plate, and the support rod and the second adjusting plate are connected through bonding.
Preferably, the lower cylinder body is connected with the upper cylinder body and the upper cylinder body is connected with the connecting plate through welding.
Preferably, the sliding contact linear rheostat is electrically connected with the analog quantity conversion transmitter.
Preferably, the sliding contact linear rheostat comprises a porcelain cylinder, a support, a resistance wire, a metal rod, a sliding sheet and an adjusting handle, wherein the support is fixed at one end of the porcelain cylinder, the resistance wire is installed on the peripheral side face of the porcelain cylinder, the metal rod is fixed at the other end of the porcelain cylinder, the sliding sheet is connected to the outer side of the metal rod in a sliding mode, and the adjusting handle is fixed at the other end of the sliding sheet.
Preferably, the lower surface of first regulating plate is laminated with the upper surface of adjusting the handle mutually, the upper surface of second regulating plate is laminated with the lower surface of adjusting the handle mutually.
Compared with the prior art, the invention has the beneficial effects that:
through the mutual matching between the lower barrel body and the upper buoy and between the sliding contact linear rheostat and the analog quantity conversion transmitter, when the device cannot install a methane storage cabinet on the tail-end methane using equipment, the flow difference between the front-end methane production flow and the rear-end using equipment flow can be obtained and provided for a PLC system of the methane using equipment, the combustion quantity of a boiler can be controlled and adjusted according to the flow difference by the PLC system of the methane using equipment, the combustion quantity of the boiler is equivalent to the front-end gas production quantity, and the tail-end methane using equipment can normally and stably operate.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a top view of the lower bowl and upper buoy of the present invention;
FIG. 3 is a cross-sectional view of the lower and upper barrels of the present invention;
FIG. 4 is a schematic view of the connection structure of the first and second tuning plates and the sliding contact linear rheostat of the present invention;
FIG. 5 is an exploded view of a portion of the connection structure of the present invention;
fig. 6 is a schematic view of a connection structure of the sliding contact linear varistor of the present invention.
In the figure: 1. a lower cylinder body; 2. a biogas inlet; 3. a stop valve; 4. a biogas outlet; 5. an upper cylinder body; 6. an upper buoy; 7. a guide rail; 8. a chute; 9. a support bar; 10. a first adjusting plate; 11. a second adjusting plate; 12. a connecting plate; 13. a sliding contact linear rheostat; 14. an analog conversion transmitter; 15. a porcelain cylinder; 16. a support; 17. a resistance wire; 18. a metal rod; 19. sliding blades; 20. and adjusting the handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a flow difference sensor special for biogas comprises a lower cylinder 1, a biogas inlet 2 is fixed on one side of the lower cylinder 1, a stop valve 3 is installed inside the biogas inlet 2, a biogas outlet 4 is fixed on the other side of the lower cylinder 1, an upper cylinder 5 is fixed on the top of the lower cylinder 1, an upper buoy 6 is installed inside the lower cylinder 1, the upper buoy 6 is made of polypropylene, so that the upper buoy 6 can float more effectively, guide rails 7 are fixed on both sides of the lower cylinder 1, sliding grooves 8 are formed on both sides of the upper buoy 6, the lower cylinder 1 and the upper buoy 6 are in sliding connection with the sliding grooves 8 through the guide rails 7, and the upper buoy 6 can move conveniently;
a supporting rod 9 is bonded on the top of the upper buoy 6, a first adjusting plate 10 is fixed on the other side of the top of the supporting rod 9, a second adjusting plate 11 is fixed on the other side of the supporting rod 9 and positioned at the bottom of the first adjusting plate 10, the supporting rod 9 and the second adjusting plate 11 are connected through bonding, so that the fixing effect is better, the other side inside the upper cylinder 5 is fixed with a connecting plate 12, the lower cylinder 1 and the upper cylinder 5 are connected through welding, the upper cylinder 5 and the connecting plate 12 are connected through welding, so that the fixation is firmer, one side of the connecting plate 12 is fixed with a sliding contact linear rheostat 13 and an analog quantity conversion transmitter 14 from one end to the other end in sequence, the analog quantity conversion transmitter 14 is positioned at one end of the sliding contact linear rheostat 13, and the sliding contact linear rheostat 13 is electrically connected with the analog quantity conversion transmitter 14 so as to transmit signals;
the sliding contact linear rheostat 13 comprises a porcelain cylinder 15, a support 16, a resistance wire 17, a metal rod 18, a sliding sheet 19 and an adjusting handle 20, the support 16 is fixed to one end of the porcelain cylinder 15, the resistance wire 17 is installed on the peripheral side face of the porcelain cylinder 15, the metal rod 18 is fixed to the other end of the porcelain cylinder 15, the sliding sheet 19 is connected to the outer side of the metal rod 18 in a sliding mode, the adjusting handle 20 is fixed to the other end of the sliding sheet 19, the lower surface of the first adjusting plate 10 is attached to the upper surface of the adjusting handle 20, the upper surface of the second adjusting plate 11 is attached to the lower surface of the adjusting handle 20, and the adjusting handle 20 can be driven to.
The working principle is as follows: when in use, the device is connected in series in a biogas pipeline, so that biogas generated by the anaerobic tank at the front end can enter the device through the biogas inlet 2, and the biogas entering the device can not flow back from the biogas inlet 2 through the characteristic of one-way circulation of the stop valve 3 arranged in the biogas inlet 2, then the biogas entering the device is sent to the biogas using equipment at the rear end for use through the biogas outlet 4, the upper float bowl 6 is floated upwards along the guide rail 7 to the middle part of the guide rail 7 by the air pressure buoyancy generated after the biogas enters the device, the entering biogas is positioned in the space formed by the lower barrel 1 and the upper float bowl 6, at the moment, the device tends to be stable, then the analog quantity conversion transmitter 14 is electrically connected with the PLC system of the biogas using equipment by using a lead, when the biogas flow of the biogas entering the device from the biogas inlet 2 of the front end equipment is greater than the flow of the biogas flowing out from the biogas outlet 4, the biogas in the space formed by the lower barrel 1 and the upper barrel 6 is increased, so that the upper float 6 moves upwards, when the upper float 6 moves upwards, the support rod 9 drives the first adjusting plate 10 and the second adjusting plate 11 to move upwards, so that the first adjusting plate 10 and the second adjusting plate 11 drive the sliding sheet 19 to move through the adjusting handle 20, when the sliding sheet 19 moves, the sliding contact linear rheostat 13 outputs a variable resistance value signal to the analog quantity conversion transmitter 14, and the analog quantity conversion transmitter 14 generates an analog quantity signal of 4-20mA and sends the analog quantity signal to the PLC system of the biogas using equipment, the PLC system of the biogas using equipment can adjust the flow of the biogas using equipment according to the 4-20mA displacement signal, so that the generated quantity and the used quantity reach a dynamic flow balance, when the biogas flow entering the device through the biogas inlet 2 of the front-end equipment is smaller than the flow flowing out from the biogas outlet 4 to the biogas using equipment, the air pressure buoyancy of the upper buoy 6 is reduced, the upper buoy 6 moves downwards, the adjusting handle 20 is driven to move downwards through the supporting rod 9, the first adjusting plate 10 and the second adjusting plate 11, the adjusting handle 20 drives the sliding sheet 19 to move downwards, the sliding sheet 19 enables the sliding contact linear rheostat 13 to output a variable resistance value signal to the analog quantity conversion transmitter 14 when moving, the analog quantity conversion transmitter 14 generates a 4-20mA analog quantity signal after receiving the analog quantity signal and sends the analog quantity signal to a PLC system of the methane using equipment, the PLC system of the methane using equipment adjusts the flow of the methane using equipment according to the 4-20mA displacement signal, the methane flow of an inlet and outlet device is dynamically balanced, the methane flow of the anaerobic methane and the methane using equipment is kept dynamically balanced, and when the methane using equipment at the tail end cannot be provided with a methane storage cabinet, the flow difference between the flow of the biogas generated at the front end and the flow of the rear end using equipment can be obtained and provided for the PLC system of the biogas using equipment, so that the PLC system of the biogas using equipment can control and adjust the combustion amount of the boiler according to the flow difference, the combustion amount of the boiler is equivalent to the flow of the biogas generated at the front end, and the tail end biogas using equipment can normally and stably operate.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a special flow difference sensor of marsh gas, includes barrel (1) down, its characterized in that: a biogas inlet (2) is fixed on one side of the lower barrel (1), a stop valve (3) is installed inside the biogas inlet (2), a biogas outlet (4) is fixed on the other side of the lower barrel (1), an upper barrel (5) is fixed on the top of the lower barrel (1), an upper buoy (6) is installed inside the lower barrel (1), guide rails (7) are fixed on two sides of the lower barrel (1), and sliding grooves (8) are formed in two sides of the upper buoy (6);
the top of going up flotation pontoon (6) bonds and has bracing piece (9), the opposite side at bracing piece (9) top is fixed with first regulating plate (10), the bottom that the opposite side of bracing piece (9) just is located first regulating plate (10) is fixed with second regulating plate (11), the inside opposite side of going up barrel (5) is fixed with connecting plate (12), one side of connecting plate (12) is fixed with in proper order from one end to the other end and is slided and touch sharp rheostat (13) and analog quantity conversion changer (14), just analog quantity conversion changer (14) are located the one end of slided and touch sharp rheostat (13).
2. The flow difference sensor special for biogas as recited in claim 1, wherein: the lower barrel body (1) and the upper floating barrel (6) are matched with the sliding groove (8) through a guide rail (7) to be in sliding connection.
3. The flow difference sensor special for biogas as recited in claim 1, wherein: the upper buoy (6) is made of polypropylene.
4. The flow difference sensor special for biogas as recited in claim 1, wherein: the support rod (9) is connected with the first adjusting plate (10) and the support rod (9) is connected with the second adjusting plate (11) through bonding.
5. The flow difference sensor special for biogas as recited in claim 1, wherein: the lower barrel body (1) is connected with the upper barrel body (5) in a welding mode, and the upper barrel body (5) is connected with the connecting plate (12) in a welding mode.
6. The flow difference sensor special for biogas as recited in claim 1, wherein: the sliding contact linear rheostat (13) is electrically connected with the analog quantity conversion transmitter (14).
7. The flow difference sensor special for biogas as recited in claim 1, wherein: the sliding contact linear rheostat (13) comprises a porcelain cylinder (15), a support (16), a resistance wire (17), a metal rod (18), a slip sheet (19) and an adjusting handle (20), the support (16) is fixed to one end of the porcelain cylinder (15), the resistance wire (17) is installed on the peripheral side face of the porcelain cylinder (15), the metal rod (18) is fixed to the other end of the porcelain cylinder (15), the slip sheet (19) is connected to the outer side of the metal rod (18) in a sliding mode, and the adjusting handle (20) is fixed to the other end of the slip sheet (19).
8. The flow difference sensor special for biogas as recited in claim 7, wherein: the lower surface of first regulating plate (10) is laminated with the upper surface of adjusting handle (20), the upper surface of second regulating plate (11) is laminated with the lower surface of adjusting handle (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634779.8A CN111779978A (en) | 2020-07-04 | 2020-07-04 | Special flow difference sensor for methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634779.8A CN111779978A (en) | 2020-07-04 | 2020-07-04 | Special flow difference sensor for methane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111779978A true CN111779978A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010634779.8A Pending CN111779978A (en) | 2020-07-04 | 2020-07-04 | Special flow difference sensor for methane |
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| CN (1) | CN111779978A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196122A (en) * | 2007-09-26 | 2008-06-11 | 唐卫东 | Production of water drainage device of firedamp suction pipe |
| CN103642677A (en) * | 2013-12-29 | 2014-03-19 | 王文福 | Open biogas digester and low-pressure biogas delivery and supply system of open biogas digester |
| US20180299077A1 (en) * | 2017-04-18 | 2018-10-18 | Air Products And Chemicals, Inc. | Control system in an industrial gas pipeline network to satisfy energy consumption constraints at production plants |
| CN108775938A (en) * | 2018-05-31 | 2018-11-09 | 北汽福田汽车股份有限公司 | Flow sensor, gas handling system and vehicle |
| CN209836168U (en) * | 2019-04-17 | 2019-12-24 | 南京天人环保设备有限公司 | Biogas flow balancer |
-
2020
- 2020-07-04 CN CN202010634779.8A patent/CN111779978A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196122A (en) * | 2007-09-26 | 2008-06-11 | 唐卫东 | Production of water drainage device of firedamp suction pipe |
| CN103642677A (en) * | 2013-12-29 | 2014-03-19 | 王文福 | Open biogas digester and low-pressure biogas delivery and supply system of open biogas digester |
| US20180299077A1 (en) * | 2017-04-18 | 2018-10-18 | Air Products And Chemicals, Inc. | Control system in an industrial gas pipeline network to satisfy energy consumption constraints at production plants |
| CN108775938A (en) * | 2018-05-31 | 2018-11-09 | 北汽福田汽车股份有限公司 | Flow sensor, gas handling system and vehicle |
| CN209836168U (en) * | 2019-04-17 | 2019-12-24 | 南京天人环保设备有限公司 | Biogas flow balancer |
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Application publication date: 20201016 |