CN115193282B - Equipment and process for producing formaldehyde solution - Google Patents
Equipment and process for producing formaldehyde solution Download PDFInfo
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- CN115193282B CN115193282B CN202210793509.0A CN202210793509A CN115193282B CN 115193282 B CN115193282 B CN 115193282B CN 202210793509 A CN202210793509 A CN 202210793509A CN 115193282 B CN115193282 B CN 115193282B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/321—Disposition of the drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/50—Mixing receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71725—Feed mechanisms characterised by the means for feeding the components to the mixer using centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
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Abstract
The invention relates to the technical field of formaldehyde solution production, and provides equipment and a production process for formaldehyde solution production, wherein the equipment comprises a first shell, a cylindrical cavity and an annular cavity are sequentially arranged from inside to outside, a strip-shaped groove is formed in the inner wall of the cylindrical cavity, the strip-shaped groove is in a spiral shape on the inner wall of the cylindrical cavity, an air hole is formed in the bottom of the strip-shaped groove, the cylindrical cavity is communicated with the annular cavity through the air hole, a formaldehyde tank body is arranged above the first shell and is communicated with the annular cavity through a pipeline, a water outlet piece is rotated and arranged in the cylindrical cavity, the water outlet piece is rotated and used for spraying water towards the strip-shaped groove, the water outlet piece is close to the top of the cylindrical cavity, and a water storage tank body is arranged above the first shell and is communicated with a water inlet of the water outlet piece through a pipeline. Through the technical scheme, the problems that the speed is low when formaldehyde and water form formaldehyde solution in the prior art, and the density of the formed formaldehyde solution is uneven are solved.
Description
Technical Field
The invention relates to the technical field of formaldehyde solution production, in particular to equipment and a production process for formaldehyde solution production.
Background
As an important industrial raw material for production, an aqueous formaldehyde solution (hereinafter referred to as formaldehyde solution) is required to be produced by each manufacturer, but at present, many manufacturers often have low production efficiency due to the equipment and the corresponding method used when producing formaldehyde solution, and it is difficult to obtain formaldehyde solution with uniform concentration.
Disclosure of Invention
The invention provides equipment for producing formaldehyde solution, which solves the problems of low production efficiency and uneven concentration of formaldehyde solution in the prior art.
The technical scheme of the invention is as follows:
comprising the following steps:
the first shell is provided with a cylindrical cavity and an annular cavity from inside to outside in sequence,
the inner wall of the cylindrical cavity is provided with strip-shaped grooves which are spiral on the inner wall of the cylindrical cavity, a plurality of strip-shaped grooves are uniformly arranged along the circumferential direction of the cylindrical cavity,
an air hole is arranged at the bottom of the strip-shaped groove, the air hole communicates the cylindrical cavity with the annular cavity,
the formaldehyde tank body is arranged above the first shell and is communicated with the annular cavity through a pipeline,
the rotary water outlet piece is rotationally arranged in the cylindrical cavity and is used for spraying water towards the strip-shaped groove, the rotary water outlet piece is close to the top of the cylindrical cavity,
the water storage tank body is arranged above the first shell and is communicated with the water inlet of the rotary water outlet piece through a pipeline.
As a further technical scheme, the method comprises the steps of,
the air holes are distributed in a plurality along the length direction of the strip-shaped groove, and one end, close to the annular cavity, of each air hole is located above the other end.
As a further technical scheme, the rotary water outlet piece comprises,
the first pipe body is arranged on the first shell, one end of the first pipe body stretches into the cylindrical cavity, the other end of the first pipe body is connected with the water outlet of the water storage tank body,
the rotary joint is rotationally arranged at one end of the first pipe body positioned in the cylindrical cavity,
the rotary joint comprises a strip-shaped groove, a first water outlet pipe, a plurality of first water outlet pipes and a first water outlet pipe, wherein the first water outlet pipes are arranged on the periphery of the rotary joint, the free ends of the first water outlet pipes are used for spraying water towards the strip-shaped groove, and the first water outlet pipes are communicated with the first pipe body through the rotary joint.
As a further technical scheme, the method comprises the steps of,
the side wall of the first shell is provided with a plurality of air inlet hole groups, one air inlet hole group comprises a plurality of air inlet holes which are axially arranged along the annular cavity,
the air inlet hole groups are uniformly distributed along the circumferential direction of the annular cavity,
the side wall of the first shell is provided with a plurality of second pipe bodies, one second pipe body is communicated with one air inlet hole group,
the second annular cavity is arranged on the first shell, the second pipe bodies are communicated with the second annular cavity, and the second annular cavity is communicated with the formaldehyde tank body through a pipeline.
As a further technical scheme, the method also comprises the following steps,
the second shell is arranged below the first shell, a first cavity and a second cavity are sequentially arranged in the second shell from top to bottom, the first cavity is communicated with the cylindrical cavity,
the mixing shell is arranged in the cylindrical cavity, a cylindrical mixing cavity is arranged in the mixing shell, the bottom of the cylindrical mixing cavity is communicated with the second cavity through a pipeline,
the vertical pipe is vertically arranged in the cylindrical mixing cavity, one end of the vertical pipe extends into the first cavity and is close to the bottom of the first cavity,
the top of the cylindrical mixing cavity is provided with a conical guide body, the tip end of the conical guide body faces the end part of the vertical pipe, the surface of the conical guide body is smoothly connected with the inner wall of the cylindrical mixing cavity,
the conical tube body is arranged on the inner wall of the cylindrical mixing cavity, one end with larger diameter of the conical tube body is positioned above the other end, the vertical tube penetrates through the conical tube body,
the negative pressure pipe is arranged on the mixing shell, two ends of the negative pressure pipe are respectively positioned in the cylindrical mixing cavity and the cylindrical cavity,
the negative pressure pipe is internally provided with a negative pressure device which is used for guiding the air flow in the cylindrical mixing cavity into the cylindrical cavity or guiding the air flow in the cylindrical cavity into the cylindrical mixing cavity.
As a further technical scheme, the method also comprises the following steps,
the flow guiding column body is arranged on the inner wall of the cylindrical mixing cavity body and is positioned above the conical tube body,
the guide cylinders are uniformly distributed along the circumference of the cylindrical mixing cavity.
As a further technical scheme, the method comprises the steps of,
the flow guiding column body is a diamond column body, one pointed end of the flow guiding column body faces upwards, a plurality of flow guiding holes are arranged on the flow guiding column body,
the guide holes on the guide cylinder are arranged in a crossing way, and the inlets and the outlets of the two guide holes which are arranged in the crossing way are respectively positioned on the four sides of the guide cylinder.
As a further technical scheme, the method comprises the steps of,
the negative pressure pipe is arc-shaped, both ends of the negative pressure pipe face downwards,
the negative pressure pipe is positioned between two ends of the conical pipe body.
As a further technical scheme, the method also comprises the following steps,
the output pipe is arranged at the bottom of the second shell and is communicated with the second cavity,
the output pipe and the vertical pipe are respectively provided with a one-way conduction valve,
the one-way conduction valve at the output pipe can only allow the fluid in the second cavity to be output through the output pipe,
the one-way valve at the standpipe allows fluid within the first chamber to enter the cylindrical mixing chamber through the standpipe only.
Also provides a formaldehyde solution production process, which comprises the following steps:
s1: injecting formaldehyde along the inner wall of the annular cavity to enable the formaldehyde to rotate along the circumferential direction of the annular cavity;
s2: spraying water along the inner wall of the cylindrical cavity to enable the water to drop along the inner wall of the cylindrical cavity while rotating;
s3: formaldehyde in the annular cavity is contacted with water through the air holes to form formaldehyde solution.
The working principle and the beneficial effects of the invention are as follows:
according to the invention, the water storage tank body is used for supplying water to the rotary water outlet piece, the rotary water outlet piece rotates and sprays water to the inner wall of the cylindrical cavity, the sprayed water flows downwards along the strip-shaped groove while rotating, formaldehyde in the formaldehyde tank body is used for being supplied into the annular cavity, formaldehyde in the annular cavity is mixed with water in the strip-shaped groove through the air holes at the bottom of the strip-shaped groove to form formaldehyde solution, when the water flows downwards along the rotation of the inner wall of the cylindrical cavity while rotating, the water and the inner wall of the cylindrical cavity have certain pressure, and meanwhile, the formaldehyde overflows from the inner wall of the cylindrical cavity, so that certain acting force exists between the water and the formaldehyde, the formaldehyde is easier to be absorbed by the water, the absorption efficiency is improved, the formaldehyde can come out from the peripheral side wall of the cylindrical cavity, the contact area is improved, the contact area with the formaldehyde solution is greatly improved, and the formaldehyde solution manufacturing efficiency is improved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the enlarged partial structure of F in FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 4 according to the present invention;
FIG. 7 is a schematic view of the cross-sectional structure of the C-C of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the enlarged partial structure of G of FIG. 7 according to the present invention;
FIG. 9 is a schematic view of the cross-sectional structure D-D of FIG. 4 according to the present invention;
FIG. 10 is a schematic view of the cross-sectional E-E structure of FIG. 4 in accordance with the present invention;
in the figure: the device comprises a first shell, a 11-cylindrical cavity, a 12-annular cavity, a 13-strip-shaped groove, 14-air holes, a 15-air inlet hole group, 151-air inlets, a 16-second pipe, a 17-second annular cavity, a 2-formaldehyde tank, a 3-rotary water outlet piece, a 31-first pipe, a 32-rotary joint, a 33-first water outlet pipe, a 4-water storage tank, a 5-second shell, a 51-first cavity, a 52-second cavity, a 6-mixing shell, a 61-cylindrical mixing cavity, a 62-vertical pipe, a 63-conical guide body, a 64-conical pipe, a 67-negative pressure pipe, a 65-guide cylinder, a 66-guide hole and a 68-output pipe.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 10, the present invention provides an apparatus for producing formaldehyde solution, comprising:
the first shell 1 is provided with a cylindrical cavity 11 and an annular cavity 12 from inside to outside,
the inner wall of the cylindrical cavity 11 is provided with strip-shaped grooves 13, the strip-shaped grooves 13 are spiral on the inner wall of the cylindrical cavity 11, the strip-shaped grooves 13 are uniformly arranged in a plurality along the circumferential direction of the cylindrical cavity 11,
the bottom of the strip-shaped groove 13 is provided with an air hole 14, the air hole 14 communicates the cylindrical cavity 11 with the annular cavity 12,
a formaldehyde tank body 2 arranged above the first shell 1, the formaldehyde tank body 2 is communicated with the annular cavity 12 through a pipeline,
the rotary water outlet piece 3 is rotatably arranged in the cylindrical cavity 11, the rotary water outlet piece 3 is used for spraying water towards the strip-shaped groove 13, the rotary water outlet piece 3 is close to the top of the cylindrical cavity 11,
the water storage tank body 4 is arranged above the first shell 1, and the water storage tank body 4 is communicated with the water inlet of the rotary water outlet piece 3 through a pipeline.
In this embodiment, the water storage tank 4 is used for supplying water to the rotary water outlet 3, the rotary water outlet 3 sprays water to the inner wall of the cylindrical cavity 11 while rotating, the sprayed water flows down along the strip-shaped groove 13 while rotating, formaldehyde in the formaldehyde tank 2 is used for supplying the formaldehyde into the annular cavity 12, then formaldehyde in the annular cavity 12 is mixed with water in the strip-shaped groove 13 through the air holes 14 at the bottom of the strip-shaped groove 13 to form formaldehyde solution, when the water flows down while rotating on the inner wall of the cylindrical cavity 1, the water is subjected to the action of centrifugal force, so that certain pressure exists between the water and the inner wall of the cylindrical cavity 1, and meanwhile, formaldehyde overflows from the inner wall of the cylindrical cavity 1, when the formaldehyde is absorbed by the water, the absorption efficiency is improved, because the air holes 14 are quite many, formaldehyde can come out from the peripheral side wall of the cylindrical cavity 11, the contact area with the water is greatly improved, the formaldehyde solution manufacturing efficiency is improved, in addition, because the water flow falling down along the inner wall of the cylindrical cavity 11 is in a certain degree, the rotating direction, the formaldehyde solution can be uniformly mixed after the water flow falls down along the rotation of the inner wall of the cylindrical cavity 11, the effect of the formaldehyde solution is more uniform, and the uniform mixing density can be achieved, and the uniform mixing state can be more even after the conditions can be achieved.
Further, the air holes 14 are distributed in a plurality along the length direction of the strip-shaped groove 13, and one end of the air holes 14 close to the annular cavity 12 is located above the other end.
In this embodiment, the air holes 14 are used for communicating the cylindrical cavity 11 with the annular cavity 12, the air holes 14 are provided with a plurality of air holes, formaldehyde can be allowed to be discharged into the cylindrical cavity 11 through more air holes 14 and absorbed by water to form formaldehyde solution, in addition, the position of one end of the air holes 14 close to the annular cavity 12 is higher than the height of one end close to the cylindrical cavity 11, so that when water flows along the strip-shaped groove 13, the water flow is prevented from flowing into the annular cavity 12 through the air holes 14 as much as possible, formaldehyde can occupy more space in the annular cavity 12, and formaldehyde solution can be smoothly formed by entering the cylindrical cavity 11 through each air hole 14.
Further, the rotary water outlet member 3 includes,
the first pipe body 31 is arranged on the first shell 1, one end of the first pipe body 31 extends into the cylindrical cavity 11, the other end is connected with the water outlet of the water storage tank body 4,
a rotary joint 32 rotatably provided on one end of the first pipe body 31 at the cylindrical cavity 11,
the first water outlet pipe 33, the circumference of rotary joint 32 is provided with a plurality of first water outlet pipe 33, and the free end of first water outlet pipe 33 is used for spraying water towards bar recess 13, and first water outlet pipe 33 communicates with first body 31 through rotary joint 32.
In this embodiment, the first pipe body 31 is connected to the water outlet of the water storage tank body 4, the rotary joint 32 can rotate while the first water outlet pipe 33 is discharging water, as shown in fig. 9, the free end of the first water outlet pipe 33 is inclined, so that the sprayed water flow is along the direction of the strip-shaped groove 13, and the first water outlet pipe 33 rotates while spraying water under the action of the reverse force of the water flow, so that all parts of the inner wall of the cylindrical cavity 11 can have water flow.
Further, the rotational axis of the rotary joint 32 is coaxial with the cylindrical cavity 11.
In this embodiment, the rotation axis of the rotary joint 32 is coaxial with the central axis of the cylindrical cavity 11, so that the distance from the free end of the first water outlet pipe 33 to the inner wall of the cylindrical cavity 11 is equal when the first water outlet pipe rotates, so as to ensure that the flow velocity of water in the inner wall of the cylindrical cavity 11 is as constant as possible, and further ensure that the concentration of the formaldehyde solution is more uniform.
Further, the side wall of the first housing 1 is provided with a plurality of air inlet hole groups 15, one air inlet hole group 15 comprises a plurality of air inlet holes 151 axially arranged along the annular cavity 12,
the plurality of air inlet hole groups 15 are uniformly distributed along the circumferential direction of the annular cavity 12,
the second pipe bodies 16, a plurality of second pipe bodies 16 are arranged on the side wall of the first shell 1, one second pipe body 16 is communicated with one air inlet hole group 15,
the second annular cavity 17 is arranged on the first shell 1, the second pipe bodies 16 are communicated with the second annular cavity 17, and the second annular cavity 17 is communicated with the formaldehyde tank 2 through a pipeline.
In this embodiment, as shown in fig. 2 and 4, the air inlet hole group 15 is disposed along the axial direction of the annular cavity 12, and the air inlet hole group 15 is disposed in a plurality along the circumferential direction of the annular cavity 12, so that after the formaldehyde tank 2 passes through the second annular cavity 17, the second pipe 16 and the air inlet hole 151 in sequence, the formaldehyde enters the annular cavity 12, and the formaldehyde almost completely fills the annular cavity 12.
Further, the air intake holes 151 are provided in a tangential direction of the annular chamber 12.
In this embodiment, as shown in fig. 6, the air inlet 151 is disposed along the tangential direction of the annular cavity 12, formaldehyde has a certain effect when passing through the air inlet 151, so that formaldehyde forms a rotating state after entering the annular cavity 12 through the air inlet 151, and thus, formaldehyde can be diffused more fully in the annular cavity 12, a rotating speed can be provided for formaldehyde in the annular cavity 12, after the formaldehyde rotates to the position of the air hole 14, a certain pressure enters the cylindrical cavity 11 from the air hole 14, and a certain pressure and a certain speed are provided between water flow and formaldehyde, so that the amount of formaldehyde absorbed by water is larger in the same time, and the formaldehyde solution production efficiency is improved.
Further, the method also comprises the steps of,
a second housing 5 disposed below the first housing 1, the second housing 5 having a first cavity 51 and a second cavity 52 from top to bottom in sequence, the first cavity 51 communicating with the cylindrical cavity 11,
a mixing housing 6 disposed in the cylindrical cavity 11, the mixing housing 6 having a cylindrical mixing cavity 61 therein, the bottom of the cylindrical mixing cavity 61 being in communication with the second cavity 52 through a pipe,
a standpipe 62 vertically disposed within the cylindrical mixing chamber 61, with one end of the standpipe 62 extending into the first chamber 51 and near the bottom thereof,
the top of the cylindrical mixing chamber 61 has a conical guide 63, the tip of the conical guide 63 facing the end of the standpipe 62, the surface of the conical guide 63 being smoothly connected to the inner wall of the cylindrical mixing chamber 61,
a conical tube 64 disposed on the inner wall of the cylindrical mixing chamber 61, one end of the conical tube 64 having a larger diameter being located above the other end, a standpipe 62 penetrating the conical tube 64,
a negative pressure pipe 67 provided on the mixing housing 6, and both ends of the negative pressure pipe 67 are respectively located in the cylindrical mixing chamber 61 and the cylindrical chamber 11,
the negative pressure pipe 67 has therein a negative pressure means for introducing the air flow in the cylindrical mixing chamber 61 into the cylindrical chamber 11 or introducing the air flow in the cylindrical chamber 11 into the cylindrical mixing chamber 61.
In this embodiment, as shown in fig. 4, the formaldehyde solution formed by absorbing formaldehyde by water in the cylindrical cavity 11 enters the first cavity 51, and is transported from the cylindrical mixing cavity 61 into the cylindrical cavity 11 by the negative pressure device in the negative pressure pipe 67, so that the pressure in the cylindrical mixing cavity 61 becomes smaller, so that the formaldehyde solution in the first cavity 51 enters the cylindrical mixing cavity 61 through the standpipe 62, because the end of the standpipe 62 in the cylindrical mixing cavity 61 faces and approaches the tip of the conical guide 63, the formaldehyde solution enters the cylindrical mixing cavity 61 from the end of the standpipe 62 and is guided by the conical guide 63 and then flows down from the inner wall around the cylindrical mixing cavity 61, and the formaldehyde solution is collected and mixed with each other by the conical pipe 64 when flowing down, so that the formaldehyde solution is more uniform in concentration, and then falls to the bottom of the cylindrical mixing cavity 61 and flows into the second cavity 52 through the pipe, so that the formaldehyde solution with uniform concentration is obtained.
Further, the method also comprises the steps of,
a guide cylinder 65 arranged on the inner wall of the cylindrical mixing cavity 61, the guide cylinder 65 being positioned above the conical tube 64,
the guide cylinders 65 are several, and the guide cylinders 65 are uniformly distributed along the circumference of the cylindrical mixing cavity 61.
In this embodiment, as shown in fig. 4, 5, 6 and 8, when the formaldehyde solution is guided to the inner wall of the cylindrical mixing cavity 61 by the tapered guide body 63 and flows downward, the formaldehyde solution flows through the guide column 65, and the guide column 65 changes the flowing direction of the formaldehyde solution, so that the formaldehyde solutions have a certain impact effect, and thus the formaldehyde solutions can be mixed more uniformly.
Further, the diversion column 65 is a diamond column, one tip of the diversion column 65 faces upwards, a plurality of diversion holes 66 are arranged on the diversion column 65,
the diversion holes 66 on the diversion column 65 are arranged in a crossing way, and the inlets and the outlets of the two diversion holes 66 arranged in the crossing way are respectively positioned on the four sides of the diversion column 65.
In this embodiment, as shown in fig. 8, the cross section of the diversion column 65 is diamond-shaped, and the diversion holes 66 are cross-arranged on the diversion column 65, when formaldehyde solution flows through the diversion column 65, a part of formaldehyde solution is easily separated to two sides by two sides of the tip of the diversion column, and a part of formaldehyde solution separated to two sides can enter the diversion holes 66, because the diversion holes 66 are cross-arranged, the formaldehyde solution passing through the diversion holes 66 can have a mixing effect when flowing through the cross position and then go out through the diversion holes, so that the formaldehyde solution has a further mixing effect, the concentration difference of each part of the formaldehyde solution is smaller, and the overall concentration is more uniform.
Further, the negative pressure pipe 67 is arc-shaped, and both ends thereof face downward,
a negative pressure tube 67 is located between the two ends of the conical tube body 64.
In this embodiment, as shown in fig. 5, the negative pressure tube 67 is arc-shaped, and both ends thereof face downward, so that the blocking caused by the water solution entering the negative pressure tube 67 can be prevented.
Further, the method also comprises the steps of,
an output pipe 68, which is arranged at the bottom of the second housing 5, the output pipe 68 is communicated with the second cavity 52,
one-way conduction valves are provided in both the output pipe 68 and in the standpipe 62,
the one-way valve at the output tube 68 allows fluid within the second chamber 52 to be output only through the output tube 68,
a one-way communication valve located at the standpipe 62 allows fluid within the first chamber 51 to pass through the standpipe 62 into the cylindrical mixing chamber 61.
In this embodiment, the arrangement of the one-way conducting valves in the output pipe 68 and the standpipe 62 can reduce the pressure in the cylindrical mixing cavity 61 rapidly when the negative pressure device in the negative pressure pipe 67 conveys the air flow in the cylindrical mixing cavity 61 into the cylindrical cavity 11, so as to prevent the air from entering through the output pipe 68, and conversely, when changing the flow guiding direction of the air flow in the negative pressure device in the negative pressure pipe 67, that is, when the air flow in the cylindrical cavity 11 is led into the cylindrical mixing cavity 61, the pressure in the cylindrical mixing cavity 61 can be increased, so that the formaldehyde solution in the second cavity 52 is smoothly output through the output pipe 68.
Further, a plurality of water mist heads are provided on the outer wall of the first water outlet pipe 33.
In this embodiment, the water mist nozzle on the outer wall of the first water outlet pipe 33 can spray the water mist inside the cylindrical cavity 11, so that the water can absorb formaldehyde better to form formaldehyde solution.
Further, the formaldehyde tank body 2 and the water storage tank body 4 are provided with inlet pipes, valves are arranged on the inlet pipes,
the pipeline of the formaldehyde tank body 2 communicated with the annular cavity 12 is provided with a valve, the pipeline of the water storage tank body 4 communicated with the rotary water outlet member 3 is provided with a valve,
the water storage tank body 4 is provided with a pressurizing pump which is used for pressurizing the water storage tank body 4.
Also provides a formaldehyde solution production process, which comprises the following steps:
s1: injecting formaldehyde along the inner wall of the annular cavity 12 to enable the formaldehyde to rotate along the circumferential direction of the annular cavity 12;
s2: spraying water along the inner wall of the cylindrical cavity 11 to enable the water to drop along the inner wall of the cylindrical cavity 11 while rotating;
s3: formaldehyde in the annular cavity 12 contacts water through the air holes 14 to form formaldehyde solution.
In this embodiment, formaldehyde rotates and spreads in annular cavity 12, and water also rotates and falls through the inner wall of cylindrical cavity 11 for formaldehyde and water have a pivoted speed and have centrifugal force, so there is certain effort between water and the formaldehyde, thereby make water absorb formaldehyde speed faster, and have a pivoted power after the water that absorbs formaldehyde falls, make it have certain mixed action, not only can improve formaldehyde solution's production efficiency, can also improve the homogeneity degree of formaldehyde solution of production.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. An apparatus for producing formaldehyde solution, characterized by comprising,
the first shell (1) is provided with a cylindrical cavity (11) and an annular cavity (12) from inside to outside in sequence,
the inner wall of the cylindrical cavity (11) is provided with strip-shaped grooves (13), the strip-shaped grooves (13) are spiral on the inner wall of the cylindrical cavity (11), the strip-shaped grooves (13) are uniformly arranged in a plurality along the circumferential direction of the cylindrical cavity (11),
an air hole (14) is formed at the bottom of the strip-shaped groove (13), the air hole (14) is used for communicating the cylindrical cavity (11) with the annular cavity (12),
a formaldehyde tank body (2) arranged above the first shell (1), wherein the formaldehyde tank body (2) is communicated with the annular cavity (12) through a pipeline,
the rotary water outlet piece (3) is rotationally arranged in the cylindrical cavity (11), the rotary water outlet piece (3) is used for spraying water towards the strip-shaped groove (13), the rotary water outlet piece (3) is close to the top of the cylindrical cavity (11),
the water storage tank body (4) is arranged above the first shell (1), the water storage tank body (4) is communicated with the water inlet of the rotary water outlet piece (3) through a pipeline,
the rotary water outlet piece (3) comprises,
the first pipe body (31) is arranged on the first shell (1), one end of the first pipe body (31) stretches into the cylindrical cavity (11), the other end is connected with the water outlet of the water storage tank body (4),
a rotary joint (32) rotatably arranged at one end of the first pipe body (31) positioned in the cylindrical cavity (11),
the first water outlet pipe (33), be provided with a plurality of on the circumference of rotary joint (32) first water outlet pipe (33), the free end of first water outlet pipe (33) is used for towards bar recess (13) water spray, first water outlet pipe (33) pass through rotary joint (32) with first body (31) intercommunication.
2. An apparatus for producing formaldehyde solution according to claim 1, characterized in that,
the air holes (14) are distributed in a plurality along the length direction of the strip-shaped groove (13), and one end, close to the annular cavity (12), of each air hole (14) is located above the other end.
3. An apparatus for producing formaldehyde solution according to claim 1, characterized in that,
the side wall of the first shell (1) is provided with a plurality of air inlet hole groups (15), one air inlet hole group (15) comprises a plurality of air inlet holes (151) axially arranged along the annular cavity (12),
the plurality of air inlet hole groups (15) are uniformly distributed along the circumferential direction of the annular cavity (12),
a plurality of second pipe bodies (16) are arranged on the side wall of the first shell (1), one second pipe body (16) is communicated with one air inlet hole group (15),
the second annular cavity (17) is arranged on the first shell (1), the second pipe bodies (16) are communicated with the second annular cavity (17), and the second annular cavity (17) is communicated with the formaldehyde tank body (2) through a pipeline.
4. The apparatus for producing formaldehyde solution according to claim 1, further comprising,
the second shell (5) is arranged below the first shell (1), a first cavity (51) and a second cavity (52) are sequentially arranged in the second shell (5) from top to bottom, the first cavity (51) is communicated with the cylindrical cavity (11),
a mixing shell (6) arranged in the cylindrical cavity (11), wherein a cylindrical mixing cavity (61) is arranged in the mixing shell (6), the bottom of the cylindrical mixing cavity (61) is communicated with the second cavity (52) through a pipeline,
a standpipe (62) vertically arranged in the cylindrical mixing cavity (61), and one end of the standpipe (62) extends into the first cavity (51) and is close to the bottom thereof,
the top of the cylindrical mixing cavity (61) is provided with a conical guide body (63), the tip end of the conical guide body (63) faces the end part of the vertical pipe (62), the surface of the conical guide body (63) is smoothly connected with the inner wall of the cylindrical mixing cavity (61),
the conical tube body (64) is arranged on the inner wall of the cylindrical mixing cavity (61), one end with a larger diameter of the conical tube body (64) is positioned above the other end, the vertical tube (62) penetrates through the conical tube body (64),
a negative pressure pipe (67) arranged on the mixing shell (6), wherein two ends of the negative pressure pipe (67) are respectively positioned in the cylindrical mixing cavity (61) and the cylindrical cavity (11),
the negative pressure pipe (67) is internally provided with a negative pressure device which is used for guiding the air flow in the cylindrical mixing cavity (61) into the cylindrical cavity (11) or guiding the air flow in the cylindrical cavity (11) into the cylindrical mixing cavity (61).
5. The apparatus for producing formaldehyde solution according to claim 4, further comprising,
a flow guiding column body (65) arranged on the inner wall of the cylindrical mixing cavity (61), wherein the flow guiding column body (65) is positioned above the conical tube body (64),
the guide cylinders (65) are provided with a plurality of guide cylinders (65) which are uniformly distributed along the circumference of the cylindrical mixing cavity (61).
6. An apparatus for producing formaldehyde solution according to claim 5, characterized in that,
the flow guiding column body (65) is a diamond column body, one tip end of the flow guiding column body (65) faces upwards, a plurality of flow guiding holes (66) are arranged on the flow guiding column body (65),
the guide holes (66) on the guide cylinder (65) are arranged in a crossing mode, and inlets and outlets of the two guide holes (66) which are arranged in a crossing mode are respectively located on four side faces of the guide cylinder (65).
7. An apparatus for producing formaldehyde solution according to claim 5, characterized in that,
the negative pressure pipe (67) is arc-shaped, both ends of the negative pressure pipe face downwards,
the negative pressure pipe (67) is positioned between two ends of the conical pipe body (64).
8. The apparatus for producing formaldehyde solution according to claim 5, further comprising,
an output pipe (68) arranged at the bottom of the second shell (5), wherein the output pipe (68) is communicated with the second cavity (52),
one-way conducting valves are arranged in the output pipe (68) and the standpipe (62),
the one-way conduction valve at the output pipe (68) can only enable the fluid in the second cavity (52) to be output through the output pipe (68),
the one-way conduction valve at the standpipe (62) allows fluid within the first chamber (51) to pass through the standpipe (62) into the cylindrical mixing chamber (61) only.
9. A production process using the formaldehyde solution production apparatus according to any one of claims 1 to 8, characterized by comprising the steps of:
s1: injecting formaldehyde along the inner wall of the annular cavity (12) to enable the formaldehyde to rotate along the circumferential direction of the annular cavity (12);
s2: spraying water along the inner wall of the cylindrical cavity (11) to enable the water to fall down along the inner wall of the cylindrical cavity (11) while rotating;
s3: formaldehyde in the annular cavity (12) is contacted with water through the air holes (14) to form formaldehyde solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793509.0A CN115193282B (en) | 2022-07-05 | 2022-07-05 | Equipment and process for producing formaldehyde solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793509.0A CN115193282B (en) | 2022-07-05 | 2022-07-05 | Equipment and process for producing formaldehyde solution |
Publications (2)
| Publication Number | Publication Date |
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| CN115193282A CN115193282A (en) | 2022-10-18 |
| CN115193282B true CN115193282B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210793509.0A Active CN115193282B (en) | 2022-07-05 | 2022-07-05 | Equipment and process for producing formaldehyde solution |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3849986B2 (en) * | 2004-02-03 | 2006-11-22 | 松江土建株式会社 | Gas-liquid dissolving device |
| CN2776526Y (en) * | 2005-04-19 | 2006-05-03 | 孙荣军 | Ozone water mixer |
| CN103347589B (en) * | 2011-02-03 | 2015-04-15 | 联邦科学与工业研究组织 | Gas liquid contactor |
| JP2016093764A (en) * | 2014-11-12 | 2016-05-26 | 旭有機材工業株式会社 | Fluid mixer |
| CN212680678U (en) * | 2020-07-21 | 2021-03-12 | 淄博齐星化学科技有限公司 | Formaldehyde production equipment |
| CN112934020A (en) * | 2020-12-31 | 2021-06-11 | 宁波筑鸿纳米科技有限公司 | Gas-liquid or liquid-liquid mixed ultramicro bubble generating device |
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