CN114235083A - Metering equipment for conveying sludge by plunger pump - Google Patents

Metering equipment for conveying sludge by plunger pump Download PDF

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Publication number
CN114235083A
CN114235083A CN202111530563.8A CN202111530563A CN114235083A CN 114235083 A CN114235083 A CN 114235083A CN 202111530563 A CN202111530563 A CN 202111530563A CN 114235083 A CN114235083 A CN 114235083A
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CN
China
Prior art keywords
plunger pump
metering
box body
bin
sludge
Prior art date
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.)
Withdrawn
Application number
CN202111530563.8A
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Chinese (zh)
Inventor
胡刚
董凯
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Xuzhou Shengyuan Environmental Technology Co ltd
Original Assignee
Xuzhou Shengyuan Environmental Technology Co ltd
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Publication date
Application filed by Xuzhou Shengyuan Environmental Technology Co ltd filed Critical Xuzhou Shengyuan Environmental Technology Co ltd
Priority to CN202111530563.8A priority Critical patent/CN114235083A/en
Publication of CN114235083A publication Critical patent/CN114235083A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F19/00Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G17/00Apparatus for or methods of weighing material of special form or property
    • G01G17/04Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a metering device for conveying sludge by a plunger pump, which comprises the plunger pump, wherein an inlet of the plunger pump is provided with a stirring mechanism for crushing sludge particles, the stirring mechanism comprises a horizontally arranged box body, the end wall of the box body is provided with a driving motor, a horizontally arranged rotating shaft is arranged in the box body, one end of the rotating shaft is movably connected with the inner wall of the box body, the other end of the rotating shaft penetrates through the box body and is connected with the output end of the driving motor, the periphery of the rotating shaft is provided with a spiral blade, the rotating shaft is provided with a cutter and a stirring hammer which are arranged in a crossed manner with the spiral blade, one end of the box body, which is close to the driving motor, is provided with a waste inlet pipe, the bottom of the end surface of the box body, which is far away from the driving motor, is provided with a waste discharge pipe communicated with the inlet of the plunger pump, and an outlet of the plunger pump is provided with a metering mechanism for measuring sludge. Compared with the prior art, the invention has the advantages that: the device has the advantages of crushing function, uniform sludge input, stable filling of the plunger pump, high metering precision and wide application range.

Description

Metering equipment for conveying sludge by plunger pump
Technical Field
The invention relates to the technical field of fluid conveying and metering equipment, in particular to metering equipment for conveying sludge by a plunger pump.
Background
Most of traditional high-viscosity fluids are conveyed by plunger pumps, and with the maturity of sludge control technology, many units need to accurately measure the sludge on line. However, the method for conveying the sludge with the water content of 75-85% by using the plunger pump generally cannot be used for on-line measurement, and the sludge belongs to non-Newtonian fluid and is difficult to be used for measurement. In the occasion of accurate measurement, a plunger pump is often equipped with a flow meter, and the plunger pump and the flow meter are used synchronously to achieve the aim. Most of the prior art flow meters are not suitable for high viscosity fluids; although a small number of high-technology flow meters produced abroad are suitable for a part of high-viscosity fluid, the requirements on installation conditions are strict, equipment price is very high, and the sludge is inevitably agglomerated in the process of conveying the sludge, so that the conveying and metering are influenced.
Obviously, in the prior art, the fluid conveying equipment cannot measure the fluid and needs to be matched with the measuring equipment for use; the metering equipment is not suitable for high-viscosity fluid, and a few metering equipment suitable for part of high-viscosity fluid has the defects of high requirement on installation conditions, high price, limited application range and the like.
Disclosure of Invention
The invention aims to overcome the technical defects and provide the metering equipment for conveying the sludge by the plunger pump, which has the advantages of convenient operation, crushing function, uniform sludge input, stable filling of the plunger pump, high metering precision and wide application range.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a metering device for conveying sludge by a plunger pump comprises the plunger pump, wherein an inlet of the plunger pump is provided with an agitating mechanism for crushing sludge particles, the agitating mechanism comprises a horizontally placed box body, the end wall of the box body is provided with a driving motor, the box body is internally provided with a horizontally placed rotating shaft, one end of the rotating shaft is movably connected with the inner wall of the box body, the other end of the rotating shaft penetrates out of the box body and is connected with the output end of the driving motor, the periphery of the rotating shaft is provided with a helical blade, the rotating shaft is provided with a cutter and a stirring hammer which are crossed with the helical blade, one end of the box body, which is close to the driving motor, is provided with a waste inlet pipe, the bottom of the end surface of the box body, which is far away from the driving motor, is provided with a waste discharge pipe communicated with the inlet of the plunger pump, an outlet of the plunger pump is provided with a metering mechanism for measuring sludge, and the metering mechanism comprises a vertically placed metering bin and a sewage discharge bin, a pipeline communicated with the outlet of the plunger pump is arranged on one side close to the upper end of the metering bin, supporting blocks movably connected with the metering bin and the blowdown bin are arranged at the bottoms of the metering bin and the blowdown bin, a piston is arranged above the supporting blocks, a pressure spring is fixedly connected between the piston and the supporting block, a first pressure sensor is arranged on the bottom wall of the supporting block positioned in the measuring bin, a second pressure sensor is arranged on the bottom wall of the supporting block positioned in the sewage discharging bin, a connecting pipeline communicated with the sewage discharging bin is arranged below the pipeline on the metering bin, a sewage discharging pipe is arranged on one side of the piston close to the inner cavity of the sewage discharging bin on the outer wall of the sewage discharging bin, the outer wall of the measuring bin is provided with a timer which is electrically connected with the first pressure sensor and the second pressure sensor, and a glass observation window is arranged on the outer wall of the metering bin, and metering scale marks matched with the piston are arranged on the glass observation window.
Preferably, the upper ports of the metering bin and the sewage discharging bin are open.
Preferably, the diameter of the inner opening of the pipe is the same size as the diameter of the inner opening of the connecting pipe.
Preferably, the piston comprises a piston head and a sealing rubber sleeve sleeved on the piston head, a weighing sensor is arranged inside the piston in the metering bin, the weighing sensor is arranged between the piston head and the sealing rubber sleeve, and a weight display electrically connected with the weighing sensor is arranged on the outer wall of the metering bin.
Preferably, the top that is close to the waste discharge pipe on the box inner wall is embedded to have miniature pressure sensor, be equipped with between the entry end of waste discharge pipe and plunger pump with miniature pressure sensor electric connection's solenoid valve, miniature pressure sensor and timer electric connection.
After adopting the structure, the invention has the following advantages:
1. according to the invention, the stirring mechanism is arranged at the inlet of the plunger pump, and before sludge enters the plunger pump, the discharged sludge is stirred and crushed by the stirring mechanism, so that large sludge particles and other impurities are effectively prevented from being doped in the sludge, the plunger pump is prevented from being blocked, and the influence on the metering precision of the discharged sludge is avoided.
2. The invention arranges a metering mechanism at the outlet of the plunger pump, when the sludge is discharged from the plunger pump, the sludge directly enters into a metering bin, a piston in the metering bin is stressed to move downwards and compress a pressure spring, the pressure spring is stressed to press a supporting block, a first pressure sensor below the supporting block is stressed and then gives a timer timing signal, the timer starts timing, when the sludge in the metering bin is full and is discharged into a sewage discharging bin through a connecting pipeline, a second pressure sensor in the sewage discharging bin is stressed and then gives a timer stop timing signal, the volume of the sludge in the metering bin can be seen through a metering scale line on the metering bin, meanwhile, the weighing sensor transmits the weight value of the sludge in the metering bin to a weight display for displaying, and through volume metering and weight metering of the sludge, the discharge amount of the plunger pump per second can be more accurately measured through the comparison of two metering methods, the measurement accuracy is improved.
3. According to the invention, the miniature pressure sensor is embedded in the inner wall of the box body, the electromagnetic valve is arranged between the waste discharge pipe and the plunger pump, the height of sludge in the box body is monitored in real time through the miniature pressure sensor, so that the position of the sludge in the box body is always higher than the height of the waste discharge pipe, the plunger pump is always kept to fill the inner cavity pipeline when adsorbing the sludge, the metering precision of the metering mechanism is improved, when the height of the sludge in the box body is lower than the height of the waste discharge pipe, the miniature pressure sensor simultaneously gives an electromagnetic valve closing signal and a timer stop timing signal, the metering error is effectively avoided, and the metering precision is further improved.
Drawings
Fig. 1 is a schematic structural diagram a of the present invention.
Fig. 2 is a front view of fig. 1 of the present invention.
Fig. 3 is a schematic structural diagram B of the present invention.
As shown in the figure: 1. plunger pump, 2, stirring mechanism, 201, box, 202, driving motor, 203, rotating shaft, 204, helical blade, 205, cutter, 206, stirring hammer, 207, waste inlet pipe, 208, waste outlet pipe, 3, metering mechanism, 301, metering bin, 302, sewage discharging bin, 303, supporting block, 304, piston, 3041, piston head, 3042, sealing rubber sleeve, 305, pressure spring, 306, first pressure sensor, 307, second pressure sensor, 308, connecting pipeline, 309, sewage discharging pipe, 310, timer, 311, glass observation window, 312, metering graduation line, 313, weighing sensor, 314, weight display, 315, pipeline, 4, miniature pressure sensor, 5 and electromagnetic valve.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper end", "lower side", "inner side", "top end", "horizontal", "both sides", "both ends", and the like herein indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "disposed," "connected," and the like are used in a generic sense, such as "connected," which may be fixedly connected, detachably connected, integrally connected, mechanically connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment 1, referring to fig. 1-2, the metering device for sludge delivery by a plunger pump according to the present invention includes a plunger pump 1, an inlet of the plunger pump 1 is provided with a stirring mechanism 2 for crushing sludge particles, the stirring mechanism 2 includes a horizontally disposed box 201, an end wall of the box 201 is provided with a driving motor 202, the box 201 is provided with a horizontally disposed rotating shaft 203, one end of the rotating shaft 203 is movably connected with an inner wall of the box 201, the other end of the rotating shaft penetrates through the box 201 and is connected with an output end of the driving motor 202, a spiral blade 204 is disposed on an outer periphery of the rotating shaft 203, the rotating shaft 203 is provided with a cutter 205 and a stirring hammer 206 which are crosswise arranged with the spiral blade 204, one end of the box 201 close to the driving motor 202 is provided with a waste inlet pipe 207, a waste discharge pipe 208 communicated with the inlet of the plunger pump 1 is disposed at a bottom of an end surface of the box 201 far away from the driving motor 202, the export of plunger pump 1 is equipped with metering mechanism 3 that is used for measuring mud, metering mechanism 3 includes vertical measurement storehouse 301 and blowdown storehouse 302 of placing, is close to measurement storehouse 301 upper end one side is equipped with the pipeline 315 with 1 export intercommunication of plunger pump, the bottom of measurement storehouse 301 and blowdown storehouse 302 all is equipped with rather than swing joint's supporting shoe 303, is located the top of supporting shoe 303 is equipped with piston 304, fixedly connected with pressure spring 305 between piston 304 and the supporting shoe 303 is located be equipped with first pressure sensor 306 on the supporting shoe diapire in measurement storehouse 301, be located be equipped with second pressure sensor 307 on the supporting shoe diapire in blowdown storehouse 302, the below that lies in pipeline 315 on the measurement storehouse 301 is equipped with the connecting tube 308 of intercommunication blowdown storehouse 302, be equipped with blow off pipe 309 on the piston one side that is close to the inner chamber on the blowdown storehouse 302 outer wall, be equipped with its timing with first pressure sensor 306 and second pressure sensor 307 electric connection on the measurement storehouse 301 outer wall And in the device 310, a glass observation window 311 is arranged on the outer wall of the metering bin 301, and metering scale marks 312 matched with the piston are arranged on the glass observation window 311.
Further, the upper ports of the metering bin 301 and the blowdown bin 302 are open, so that bubbles discharged into the metering bin can be conveniently discharged, and the metering precision is prevented from being influenced.
Further, the inner diameter of the pipe 315 is the same size as the inner diameter of the connecting pipe 308.
Further, the piston 304 includes a piston head 3041 and a sealing rubber sleeve 3042 sleeved on the piston head 3041, a weighing sensor 313 is arranged inside the piston located in the metering bin 301, the weighing sensor 313 is arranged between the piston head 3041 and the sealing rubber sleeve 3042, and a weight display 314 electrically connected with the weighing sensor 313 is arranged on the outer wall of the metering bin 301.
When the device is used, sludge is discharged into the box body 201 through the waste inlet pipe 207, the driving motor 202 is started, the rotating shaft 203 drives the helical blade 204, the cutter 205 and the stirring hammer 206 to synchronously rotate, stir and crush, then the plunger pump 1 is started to discharge the sludge in the box body 201 into the measuring bin 301 through the pipeline 315, the piston in the measuring bin 301 is forced to move downwards and compresses the compression spring, the compression spring is forced to extrude a supporting block, the first pressure sensor 306 below the supporting block is pressed and gives a timing signal to the timer 310, the timer 310 starts timing, when the sludge in the measuring bin 301 is full and is discharged into the sewage discharging bin 302 through the connecting pipeline 308, the second pressure sensor 307 in the sewage discharging bin 302 is pressed and gives the timer 310 a timing signal to stop, the volume of the sludge in the measuring bin 301 can be seen through the measuring scale mark 312 on the measuring bin 301, and simultaneously the weighing sensor 313 transmits the weight value of the sludge in the measuring bin 301 to the weight display 314 to display, through the volume measurement and the weight measurement of the sludge and the comparison of the two measurement methods, the sewage discharge amount of the plunger pump 1 per second can be measured more accurately, and the measurement precision is improved.
Embodiment 2, referring to fig. 3, the present invention provides a metering device for a plunger pump to deliver sludge, which is different from embodiment 1:
furthermore, a miniature pressure sensor 4 is embedded in the upper portion of the inner wall of the box 201, which is close to the waste discharge pipe 208, an electromagnetic valve 5 electrically connected with the miniature pressure sensor 4 is arranged between the waste discharge pipe 208 and the inlet end of the plunger pump 1, and the miniature pressure sensor 4 is electrically connected with the timer 310.
When the device is used, when the height of sludge in the box body 201 is higher than that of the waste discharge pipe 208, the miniature pressure sensor 4 is pressed to give a starting signal to the electromagnetic valve 5, the electromagnetic valve 5 is started, meanwhile, the plunger pump 1 is started, the adsorption cavity in the plunger pump 1 is easily filled at the moment, the filling rate of the plunger pump 1 is more stable, the metering precision of the metering mechanism 3 is further improved, when the height of sludge in the box body 201 is lower than that of the waste discharge pipe 208, the miniature pressure sensor 4 cannot receive pressure, the miniature pressure sensor gives a stop signal to the electromagnetic valve 5 and the timer 310, and the metering error of the metering mechanism 3 caused by uneven filling inside the plunger pump 1 is effectively avoided.
It should be noted that the control mode of the present invention is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art, so the detailed explanation of the control mode and the circuit connection is not needed.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. The utility model provides a metering equipment for plunger pump transport mud, includes plunger pump (1), its characterized in that: the inlet of the plunger pump (1) is provided with a stirring mechanism (2) for crushing sludge particles, the stirring mechanism (2) comprises a horizontally placed box body (201), the end wall of the box body (201) is provided with a driving motor (202), a horizontally placed rotating shaft (203) is arranged in the box body (201), one end of the rotating shaft (203) is movably connected with the inner wall of the box body (201), the other end of the rotating shaft penetrates out of the box body (201) and is connected with the output end of the driving motor (202), the periphery of the rotating shaft (203) is provided with a helical blade (204), the rotating shaft (203) is provided with a cutter (205) and a stirring hammer (206) which are crossed with the helical blade (204), one end of the box body (201) close to the driving motor (202) is provided with a waste inlet pipe (207), the bottom of the end face of the box body (201) far away from the driving motor (202) is provided with a waste pipe (208) communicated with the inlet of the plunger pump (1), the outlet of the plunger pump (1) is provided with a metering mechanism (3) for measuring sludge, the metering mechanism (3) comprises a metering bin (301) and a sewage discharging bin (302) which are vertically arranged, one side of the upper end of the metering bin (301) is provided with a pipeline (315) communicated with the outlet of the plunger pump (1), the bottoms of the metering bin (301) and the sewage discharging bin (302) are respectively provided with a supporting block (303) movably connected with the metering bin, a piston (304) is arranged above the supporting block (303), a pressure spring (305) is fixedly connected between the piston (304) and the supporting block (303), the bottom wall of the supporting block in the metering bin (301) is provided with a first pressure sensor (306), the bottom wall of the supporting block in the sewage discharging bin (302) is provided with a second pressure sensor (307), a connecting pipeline (308) communicated with the sewage discharging bin (302) is arranged below the metering bin (301), be equipped with blow off pipe (309) on piston one side that is close to its inner chamber on blowdown storehouse (302) outer wall, be equipped with on measurement storehouse (301) outer wall with first pressure sensor (306) and second pressure sensor (307) electric connection's time-recorder (310), be equipped with glass observation window (311) on measurement storehouse (301) outer wall, be equipped with on glass observation window (311) with piston complex measurement scale mark (312).
2. A metering apparatus for plunger pump sludge delivery according to claim 1 wherein: the upper ports of the metering bin (301) and the sewage discharging bin (302) are open.
3. A metering apparatus for plunger pump sludge delivery according to claim 1 wherein: the diameter of the inner opening of the pipeline (315) is the same as the diameter of the inner opening of the connecting pipeline (308).
4. A metering apparatus for plunger pump sludge delivery according to claim 1 wherein: the piston (304) comprises a piston head (3041) and a sealing rubber sleeve (3042) sleeved on the piston head (3041), a weighing sensor (313) is arranged inside the piston in the metering bin (301), the weighing sensor (313) is arranged between the piston head (3041) and the sealing rubber sleeve (3042), and a weight display (314) electrically connected with the weighing sensor (313) is arranged on the outer wall of the metering bin (301).
5. A metering apparatus for plunger pump sludge delivery according to claim 1 wherein: the miniature pressure sensor (4) are embedded above the inner wall of the box body (201) and close to the waste discharge pipe (208), a solenoid valve (5) electrically connected with the miniature pressure sensor (4) is arranged between the waste discharge pipe (208) and the inlet end of the plunger pump (1), and the miniature pressure sensor (4) is electrically connected with the timer (310).
CN202111530563.8A 2021-12-14 2021-12-14 Metering equipment for conveying sludge by plunger pump Withdrawn CN114235083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111530563.8A CN114235083A (en) 2021-12-14 2021-12-14 Metering equipment for conveying sludge by plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111530563.8A CN114235083A (en) 2021-12-14 2021-12-14 Metering equipment for conveying sludge by plunger pump

Publications (1)

Publication Number Publication Date
CN114235083A true CN114235083A (en) 2022-03-25

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ID=80756052

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111530563.8A Withdrawn CN114235083A (en) 2021-12-14 2021-12-14 Metering equipment for conveying sludge by plunger pump

Country Status (1)

Country Link
CN (1) CN114235083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116538043A (en) * 2023-05-08 2023-08-04 上海市政工程设计研究总院(集团)有限公司 Conveying method and control device of sludge conveying system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116538043A (en) * 2023-05-08 2023-08-04 上海市政工程设计研究总院(集团)有限公司 Conveying method and control device of sludge conveying system
CN116538043B (en) * 2023-05-08 2024-06-25 上海市政工程设计研究总院(集团)有限公司 Conveying method and control device of sludge conveying system

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Application publication date: 20220325