CN219376811U - Chemical dosing device for thermal power plant - Google Patents

Abstract

The utility model discloses a chemical dosing device for a thermal power plant.A dosing tube is fixedly communicated with the upper surface of a dosing barrel, a mixing and stirring structure is fixedly assembled in the middle of the upper surface of the dosing barrel, a drug discharging and sampling pipeline is fixedly communicated with the lower end of the outer wall of the dosing barrel, a back flushing part is arranged at the lower end of the inner cavity of the dosing barrel, and the lower end of the drug discharging and sampling pipeline is fixedly communicated with the back flushing part; through setting up the injection pipe on the dosing bucket and conveniently dosing, mix the medicine in the dosing through mixing the medicine stirring structure to utilize mixing stirring leaf structure to promote the even degree of mixing, through the fixed of bearing frame to the bull stick, improve mixing medicine stirring structure operation stability degree, can mix the medicine in advance when dosing, avoid mixing the extravagant time of medicine in advance, improve and add the drug efficiency, and be convenient for adjust medicine mixed dosage in a flexible way according to actual conditions.

Description

Chemical dosing device for thermal power plant

Technical Field

The utility model relates to the technical field of chemical dosing of thermal power plants, in particular to a chemical dosing device for a thermal power plant.

Background

The thermal power plant is a plant for producing electric energy by using combustible matters as fuel, and the basic production process is as follows: the fuel heats water to generate steam when being combusted, chemical energy of the fuel is converted into heat energy, steam pressure pushes the steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives the generator to rotate, so that the mechanical energy is converted into electric energy.

The existing chemical dosing device for the thermal power plant cannot mix medicines in the dosing process, and the medicines are required to be mixed and blended in advance, so that the dosing efficiency is reduced, and the mixing dosage of the medicines cannot be flexibly adjusted according to actual conditions; therefore, the chemical dosing device for the thermal power plant has strong design practicability, can mix medicines uniformly while adding medicines, avoids the time wasted by mixing medicines in advance, improves the medicine adding efficiency, and is convenient for flexibly adjusting the medicine mixing dosage according to actual conditions.

Disclosure of Invention

The utility model aims to provide a chemical dosing device for a thermal power plant, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a chemical dosing device for thermal power plant, includes the installation base, the fixed assembly of upper end of installation base has the installation dull and stereotyped, circular mounting hole has been seted up at the middle part of the dull and stereotyped upper surface of installation, circular mounting hole inner ring face fixed assembly has the dosing barrel, dosing barrel upper surface fixed intercommunication has the chemical injection pipe, dosing barrel upper surface middle part fixed assembly has mixed medicine stirring structure, mixed medicine stirring structure includes fixed assembly in the driving motor of dosing barrel upper surface, driving motor output lower extreme runs through dosing barrel upper surface, driving motor output lower extreme is equipped with the bull stick, and position fixed assembly has the shaft coupling between bull stick upper end and the driving motor output lower extreme, the fixed bearing frame that has cup jointed of bull stick lower extreme, the fixed flange that has cup jointed of bearing frame outer wall lower extreme, the flange passes through bolt fixed assembly on dosing barrel inner chamber bottom surface, the fixed assembly of bull stick outer wall has mixed stirring leaf structure, the fixed assembly of dosing barrel upper wall has the controller, the controller respectively with arrange medicine stirring structure and mixed medicine stirring structure, the fixed connection of bull stick upper end and dosing barrel lower extreme, the fixed connection has the back flush piece with the inner chamber of taking a sample, the lower extreme is connected with the fixed flushing device.

According to the technical scheme, the mixing stirring vane structure comprises lifting stirring vanes which are uniformly and fixedly assembled at the lower end of the outer wall of the rotating rod, and stirring transverse plates are uniformly and fixedly assembled at the upper end of the outer wall of the rotating rod.

According to the technical scheme, arrange medicine, sampling pipeline including fixed intercommunication in the vacuum tube of dosing barrel outer wall lower extreme, vacuum tube lower extreme and the fixed intercommunication of back flushing piece, vacuum tube outer wall lower extreme fixed mounting has the support lantern ring, and supports the lantern ring and fix at the installation base upper surface, vacuum tube outer wall middle part fixed intercommunication has the measuring pump, vacuum tube outer wall lower extreme fixed intercommunication has the filter, vacuum tube upper end fixed mounting has pulse damper, vacuum tube outer wall upper end transversely fixed intercommunication has the discharging pipe, discharging pipe bottom surface fixed intercommunication has the sampling tube, be equipped with the valve on discharging pipe and the sampling tube, fixed intercommunication has the violently pipe between vacuum tube upper end and the dosing barrel upper surface, the last fixed mounting of violently pipe has the relief valve.

According to the technical scheme, the back flushing part comprises an annular pipe arranged at the lower end of the inner cavity of the dosing barrel, the lower end of the vacuum pipe is fixedly communicated with the annular pipe, the inner annular surface of the annular pipe is uniformly provided with a feeding through hole and a discharging through hole, the upper surface of the annular pipe is uniformly fixedly communicated with a spray pipe, and the upper end of the spray pipe is fixedly communicated with a spray head.

According to the technical scheme, the installation base comprises a bottom plate, the rubber layer is fixed with in the bottom plate bottom surface paste, the installation through-hole has all been seted up to bottom plate upper surface four corners department, bottom plate upper surface left side is equipped with four bracing pieces that are the rectangle and distribute, rectangular channel has been seted up to the bottom plate bottom surface correspondence bracing piece, rectangular channel bottom surface middle part spiro union has fixing bolt, and fixing bolt upper end spiro union in correspondence the bracing piece lower extreme, fixing bolt's screw rod outer wall has cup jointed spring washer, spring washer centre gripping is in the position between fixing bolt's bolt cap and the rectangular channel top.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the utility model, the medicine injection pipe is arranged on the medicine adding barrel to facilitate medicine adding, medicine is mixed while being added through the medicine mixing and stirring structure, the uniformity of mixing is improved by utilizing the mixing and stirring blade structure, the operation stability of the medicine mixing and stirring structure is improved by fixing the rotating rod through the bearing seat, the medicine can be uniformly mixed while being added, the time wasted by mixing the medicine in advance is avoided, the medicine adding efficiency is improved, and the medicine mixing dosage is flexibly adjusted according to actual conditions.

(2) According to the utility model, high-pressure water flow is reversely injected from the medicine discharging pipe of the medicine discharging and sampling pipeline, and is sprayed out from the back flushing part, so that the inner wall of the medicine feeding barrel and the inner wall of the pipeline can be cleaned.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic structural view of the medicine mixing and stirring structure of the utility model;

FIG. 3 is a schematic view of the structure of the backflushing member of the present utility model;

fig. 4 is a schematic view of the mounting base structure of the present utility model.

In the figure: 1-mounting base, 11-bottom plate, 12-rubber layer, 13-mounting through hole, 14-supporting rod, 15-rectangular slot, 16-fixing bolt, 17-spring washer, 2-mounting flat plate, 3-circular mounting hole, 4-dosing barrel, 5-injection tube, 6-mixing stirring structure, 61-driving motor, 62-rotating rod, 63-coupling, 64-bearing seat, 65-connecting flange, 66-mixing stirring blade structure, 661-stirring transverse plate, 662-lifting stirring blade, 7-controller, 8-discharging medicine, sampling pipeline, 81-vacuum tube, 82-supporting sleeve ring, 83-filter, 84-metering pump, 85-pulse damper, 86-discharging tube, 87-sampling tube, 88-transverse tube, 89-safety valve, 9-back flushing piece, 91-annular tube, 92-spray tube, 93-spray head, 94-feeding and discharging through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a chemical dosing device for thermal power plant, including installation base 1, the fixed installation of upper end of installation base 1 has installed dull and stereotyped 2, circular mounting hole 3 has been seted up at the middle part of the upper surface of installation dull and stereotyped 2, circular mounting hole 3 inner ring face fixed installation has been equipped with dosing barrel 4, dosing barrel 4 upper surface fixed intercommunication has medicine filling pipe 5, dosing barrel 4 upper surface middle part fixed installation has mixed medicine stirring structure 6, mixed medicine stirring structure 6 includes fixed assembly in dosing barrel 4 upper surface's driving motor 61, driving motor 61 output lower extreme runs through dosing barrel 4 upper surface, driving motor 61 output lower extreme is equipped with bull stick 62, and the fixed installation of position has shaft coupling 63 between bull stick 62 upper end and the driving motor 61 output lower extreme, bull stick 62 lower extreme fixed sleeve has bearing frame 64, bearing frame 64 outer wall lower extreme fixed sleeve has connecting flange 65, connecting flange 65 passes through bolt fixed assembly on dosing barrel 4 inner chamber bottom surface, bull stick 62 outer wall fixed installation has mixed stirring leaf structure 66, mixed medicine stirring structure 6 is fixed to be equipped with controller 7 on dosing barrel 4 front wall upper end, controller 7 respectively with the drug discharge pipe 8, electric connection with drug discharge pipe 8, the sampling pipe 8, the fixed discharge pipe is equipped with the back flush pipe 8, the lower part is fixed, the sampling pipe is washed down, the lower part is connected with the back-flushing pipe is equipped with the sampling pipe is equipped with 9, the back-flushing pipe is washed down.

Through setting up the injection pipe 5 on dosing barrel 4 and conveniently dosing, mix the medicine in dosing through mixing medicine stirring structure 6 to utilize mixing stirring leaf structure 66 to promote the even degree of mixing, through bearing frame 64 to the fixed of bull stick 62, improve mixing medicine stirring structure 6 operation stability, can mix the medicine in advance when dosing, avoid mixing the extravagant time with the medicine in advance, improve the drug addition efficiency, and be convenient for adjust medicine mixed dosage in a flexible way according to actual conditions.

Specifically, the mixing blade structure 66 includes a lifting blade 662 uniformly and fixedly mounted on the lower end of the outer wall of the rotating rod 62, and a stirring transverse plate 661 uniformly and fixedly mounted on the upper end of the outer wall of the rotating rod 62; the medicine in the lower end of the inner cavity of the medicine adding barrel 4 is lifted upwards by the lifting stirring vane 662, and the medicine is mixed and stirred by the stirring transverse plate 661.

Specifically, the medicine discharging and sampling pipeline 8 comprises a vacuum pipe 81 fixedly communicated with the lower end of the outer wall of the medicine adding barrel 4, the lower end of the vacuum pipe 81 is fixedly communicated with a back flushing piece 9, a supporting collar 82 is fixedly assembled at the lower end of the outer wall of the vacuum pipe 81, the supporting collar 82 is fixedly arranged on the upper surface of the mounting base 1, a metering pump 84 is fixedly communicated with the middle part of the outer wall of the vacuum pipe 81, a filter 83 is fixedly communicated with the lower end of the outer wall of the vacuum pipe 81, a pulse damper 85 is fixedly assembled at the upper end of the vacuum pipe 81, a discharging pipe 86 is transversely fixedly communicated with the upper end of the outer wall of the vacuum pipe 81, a sampling pipe 87 is fixedly communicated with the bottom surface of the discharging pipe 86, a valve is assembled on the discharging pipe 86 and the sampling pipe 87, a transverse pipe 88 is fixedly communicated between the upper end of the vacuum pipe 81 and the upper surface of the medicine adding barrel 4, and a safety valve 89 is fixedly assembled on the transverse pipe 88; the sampling tube 87 can be used for discharging and sampling after being opened, and whether the medicament mixed in the medicament adding barrel 4 meets the requirements or not can be conveniently determined.

Specifically, the back flushing part 9 comprises an annular pipe 91 arranged at the lower end of the inner cavity of the dosing barrel 4, the lower end of a vacuum pipe 81 is fixedly communicated with the annular pipe 91, a feeding through hole 94 and a discharging through hole 94 are uniformly formed in the inner annular surface of the annular pipe 91, a spray pipe 92 is uniformly and fixedly communicated with the upper surface of the annular pipe 91, and a spray head 93 is fixedly and communicated with the upper end of the spray pipe 92; the water flow for back flushing is sprayed out from the feeding and discharging through holes 94 and the spray head 93 to flush the inner wall of the dosing barrel 4.

Specifically, the installation base 1 includes bottom plate 11, the rubber layer 12 is fixed with in the pasting of bottom plate 11 bottom surface, installation through-hole 13 has all been seted up to bottom plate 11 upper surface four corners department, bottom plate 11 upper surface left side is equipped with four bracing pieces 14 that are the rectangle and distribute, rectangular channel 15 has been seted up to bottom plate 11 bottom surface correspondence bracing piece 14, rectangular channel 15 bottom surface middle part spiro union has fixing bolt 16, and fixing bolt 16 upper end spiro union is in corresponding bracing piece 14 lower extreme, the outer wall of the screw rod of fixing bolt 16 has cup jointed spring washer 17, the position between the bolt cap of fixing bolt 16 and rectangular channel 15 top surface is held to spring washer 17.

Working principle:

according to the utility model, the medicine injection pipe 5 is arranged on the medicine injection barrel 4 to facilitate medicine injection, medicine is mixed while being injected through the medicine mixing stirring structure 6, the uniformity of mixing is improved by utilizing the mixing stirring blade structure 66, the running stability of the medicine mixing stirring structure 6 is improved by fixing the rotating rod 62 through the bearing seat 64, medicine can be uniformly mixed while being injected, the time wasted by mixing the medicine in advance is avoided, the medicine injection efficiency is improved, and the medicine mixing dosage is flexibly adjusted according to actual conditions.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. A chemical dosing device for a thermal power plant is characterized in that: including installation base (1), the fixed dress in upper end of installation base (1) has installed dull and stereotyped (2) of installation, circular mounting hole (3) have been seted up at the upper surface middle part of installation dull and stereotyped (2), circular mounting hole (3) inner ring face fixed dress has medicine feeding barrel (4), medicine feeding barrel (4) upper surface fixed intercommunication has medicine filling pipe (5), medicine feeding barrel (4) upper surface middle part fixed dress has mixed medicine stirring structure (6), mixed medicine stirring structure (6) include fixed assembly in driving motor (61) of medicine feeding barrel (4) upper surface, driving motor (61) output lower extreme runs through medicine feeding barrel (4) upper surface, driving motor (61) output lower extreme is equipped with bull stick (62), and fixed being equipped with shaft coupling (63) between bull stick (62) upper end and the driving motor (61) output lower extreme, bull stick (62) lower extreme fixed sleeve joint has bearing frame (64), connecting flange (65) have been cup jointed to the outer wall lower extreme fixed sleeve, connecting flange (65) are joined in marriage medicine barrel (62) and are fixed to be equipped with in the driving motor (4) output lower extreme, it has inner chamber (7) to join in marriage medicine (7) fixed controller, controller (7) and fixed controller, controller (7) are assembled with the inner chamber (7) respectively, controller (7) are assembled to fix the inner wall (7) Sampling pipeline (8) and mix medicine stirring structure (6) electricity and be connected, it has row medicine, sampling pipeline (8) to add medicine bucket (4) outer wall lower extreme intercommunication, it is equipped with back flushing piece (9) to add medicine bucket (4) inner chamber lower extreme, the lower extreme of arranging medicine, sampling pipeline (8) and back flushing piece (9) fixed intercommunication.

2. A chemical dosing apparatus for a thermal power plant according to claim 1, wherein: the mixing stirring vane structure (66) comprises lifting stirring vanes (662) which are uniformly and fixedly assembled at the lower end of the outer wall of the rotating rod (62), and stirring transverse plates (661) are uniformly and fixedly assembled at the upper end of the outer wall of the rotating rod (62).

3. A chemical dosing apparatus for a thermal power plant according to claim 1, wherein: arrange medicine, sampling pipeline (8) including fixed intercommunication in vacuum tube (81) of dosing barrel (4) outer wall lower extreme, vacuum tube (81) lower extreme and the fixed intercommunication of back flushing piece (9), vacuum tube (81) outer wall lower extreme fixed mounting has support lantern ring (82), and support lantern ring (82) are fixed at installation base (1) upper surface, vacuum tube (81) outer wall middle part fixed intercommunication has metering pump (84), vacuum tube (81) outer wall lower extreme fixed intercommunication has filter (83), vacuum tube (81) upper end fixed mounting has pulse damper (85), vacuum tube (81) outer wall upper end transversely fixed intercommunication has discharging pipe (86), discharging pipe (86) bottom surface fixed intercommunication has sampling tube (87), be equipped with the valve on discharging pipe (86) and the sampling tube (87), fixed intercommunication has cross tube (88) between vacuum tube (81) upper end and dosing barrel (4) upper surface, fixed mounting has relief valve (89) on cross tube (88).

4. A chemical dosing apparatus for a thermal power plant according to claim 3, wherein: the back flushing part (9) comprises an annular pipe (91) arranged at the lower end of the inner cavity of the dosing barrel (4), the lower end of the vacuum pipe (81) is fixedly communicated with the annular pipe (91), a feeding through hole (94) is uniformly formed in the inner annular surface of the annular pipe (91), a spray pipe (92) is uniformly and fixedly communicated with the upper surface of the annular pipe (91), and a spray head (93) is fixedly and fixedly communicated with the upper end of the spray pipe (92).

5. A chemical dosing apparatus for a thermal power plant according to claim 1, wherein: the mounting base (1) comprises a base plate (11), a rubber layer (12) is fixedly adhered to the bottom surface of the base plate (11), mounting through holes (13) are formed in four corners of the upper surface of the base plate (11), four support rods (14) which are distributed in a rectangular mode are arranged on the left side of the upper surface of the base plate (11), rectangular grooves (15) are formed in the bottom surface of the base plate (11) corresponding to the support rods (14), fixing bolts (16) are fixedly connected to the middle portions of the bottom surfaces of the rectangular grooves (15) in a threaded mode, the upper ends of the fixing bolts (16) are fixedly connected to the lower ends of the corresponding support rods (14) in a threaded mode, spring washers (17) are sleeved on the outer walls of screws of the fixing bolts (16), and the spring washers (17) are clamped at positions between the screw caps of the fixing bolts (16) and the top surfaces of the rectangular grooves (15).