CN217431071U - Anti-blocking polyformaldehyde concentration device - Google Patents
Anti-blocking polyformaldehyde concentration device Download PDFInfo
- Publication number
- CN217431071U CN217431071U CN202220766685.0U CN202220766685U CN217431071U CN 217431071 U CN217431071 U CN 217431071U CN 202220766685 U CN202220766685 U CN 202220766685U CN 217431071 U CN217431071 U CN 217431071U
- Authority
- CN
- China
- Prior art keywords
- liquid
- flushing
- communicated
- formaldehyde
- unit
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to the technical field of blockage prevention of a production device, and discloses a blockage-preventing polyformaldehyde concentration device, which comprises a delivery pump, wherein the delivery pump is communicated with a formaldehyde polymerization unit through a discharge pipeline provided with a discharge valve; the conveying pump is communicated with the formaldehyde concentration unit through a feeding pipeline, and a pump inlet valve, a flushing liquid inlet, a filter and a spray guide port are sequentially arranged on the feeding pipeline along the material flow direction; the flushing liquid inlet is communicated with the flushing liquid unit through a flushing pipe provided with an inlet stop valve, so that the flushing liquid can enter the logistics channel for thorough flushing; and the guide spraying port is communicated with the waste liquid recovery unit through a liquid discharge pipe provided with a one-way valve and is used for discharging the waste liquid after being washed in the logistics channel to the waste liquid recovery unit. The utility model has the advantages of have the replacement thoroughly, discharge totally, realized airtight emission, prolonged the operation cycle of device, reduce the overhaul of the equipments cost, reduce harm such as environment and healthy.
Description
Technical Field
The utility model relates to a technical field is prevented blockking up by the apparatus for producing, specifically relates to a prevent stifled polyformaldehyde enrichment facility.
Background
The formaldehyde secondary concentration system is used for concentrating 58-60% of formaldehyde again by utilizing the principle that the partial pressure of the formaldehyde is reduced at low pressure, so that the concentration of the formaldehyde reaches 68-70%, the use requirement of trioxymethylene reaction is met, and the conversion rate of the trioxymethylene is further improved. The process is simple, the investment is saved, the adjusting capacity is strong, but the formaldehyde is extremely easy to self-polymerize at low temperature and high concentration, the filter at the inlet of the concentrated formaldehyde conveying pump is frequently blocked and needs to be cleaned, the high-concentration formaldehyde cleaning filter screen is difficult to replace completely in the process of delivering and maintaining, a large amount of formaldehyde gas volatilizes to pollute the environment, and the body health is seriously influenced; and high concentration formaldehyde easily crystallizes and blocks up equipment pipeline damage equipment and need the parking to overhaul to dredge the clearance, and the clearance mediation is difficult, influences the long period steady operation of device, has improved and has examined cost of maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the high-concentration formaldehyde clear filter screen in the prior art is difficult to be replaced completely in the delivery and maintenance process, and formaldehyde volatilizes to pollute the environment and influence the health; and the formaldehyde crystallization blocks up the equipment pipeline and needs to be stopped for maintenance, the long-period operation of the device is influenced, and the maintenance cost is improved.
In order to achieve the aim, the utility model provides an anti-blocking polyformaldehyde concentration device, which comprises a delivery pump, wherein the delivery pump is communicated with a formaldehyde polymerization unit through a discharge pipeline provided with a discharge valve;
the conveying pump is communicated with the formaldehyde concentration unit through a feeding pipeline, and a pump inlet valve, a flushing liquid inlet, a filter and a spray guide port are sequentially arranged on the feeding pipeline along the material flow direction;
the flushing liquid inlet is communicated with the flushing liquid unit through a flushing pipe provided with an inlet stop valve, so that the flushing liquid can enter the logistics channel for thorough flushing;
and the guide spraying port is communicated with the waste liquid recovery unit through a liquid discharge pipe provided with a one-way valve and used for discharging the washed waste liquid in the logistics channel to the waste liquid recovery unit.
Preferably, the drain pipe is provided with a waste liquid valve.
Preferably, the drain pipe is communicated with the flushing liquid unit through a branch pipe, and at least one control valve is arranged on the branch pipe.
Preferably, the branch pipe is communicated with a flushing pipe.
Preferably, the flushing pipe and/or the branch pipe is/are externally wrapped with an insulating layer.
Preferably, a heat tracing pipe is wound outside the feeding pipe line and/or outside the discharging pipe line.
Preferably, the filter is provided with a 0.1mpa (g) steam jacket for heat tracing.
Preferably, the delivery pump is provided with a hot water jacket for heat tracing.
Preferably, the waste liquid recovery unit includes:
the waste liquid recovery tank is communicated with the liquid discharge pipe and is used for storing the washed waste liquid;
the waste liquid recovery tank is communicated with the solid-liquid separation device and is used for removing solid impurities in the waste liquid;
the separation device is communicated with an evaporator provided with a vapor outlet and a liquid outlet and is used for evaporating formaldehyde in the waste liquid and discharging the formaldehyde through the vapor outlet, and the liquid after removing the formaldehyde is discharged from the liquid outlet.
Preferably, the steam outlet is communicated with the formaldehyde concentration unit and used for sending the evaporated formaldehyde in the waste liquid back to the formaldehyde concentration unit.
Preferably, the liquid outlet is communicated with the washing liquid unit and is used for returning the liquid after formaldehyde removal to the washing liquid unit for recycling.
Through the technical scheme, the utility model discloses a arranging of flushing pipe can carry out no dead angle to the commodity circulation passageway and wash, has solved because of the high auto-agglutination of formaldehyde concentration blocks up the equipment pipeline and washes incomplete problem, can avoid giving out the safe risk that overhauls because of the pressure release thoroughly causes, with the interior remaining waste liquid evacuation of washing to waste liquid recovery unit of commodity circulation passageway, has realized airtight emission, has guaranteed promptly that the personal safety who gives out maintainer has reduced the pollution to the environment again.
Drawings
Fig. 1 is a schematic structural diagram of an anti-blocking polyformaldehyde concentration device according to a preferred embodiment of the present invention.
Description of the reference numerals
15 a delivery pump; 16 a filter; 17 draining; 4 a control valve; 5 a waste liquid valve; 6, an inlet cut-off valve; 7 a pump inlet valve; 8, a discharge valve; 9 waste liquid valve.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, left, and right" used herein generally refer to the upper, lower, left, and right directions as viewed in the drawings, and "inner and outer" refer to the inner and outer sides of the outline of each component itself.
As shown in fig. 1, the utility model provides an anti-blocking polyformaldehyde concentration device, which comprises a delivery pump 15, wherein the delivery pump 15 is communicated with a formaldehyde polymerization unit through a discharge pipeline provided with a discharge valve 8;
the conveying pump 15 is communicated with the formaldehyde concentration unit through a feeding pipeline, and a pump inlet valve 7, a flushing liquid inlet, a filter 16 and a spray guide opening 17 are sequentially arranged on the feeding pipeline along the material flow direction;
the flushing liquid inlet is communicated with a flushing liquid unit through a flushing pipe provided with an inlet stop valve 6, so that the flushing liquid can enter the logistics channel for thorough flushing;
the lead and drench the mouth 17 and communicate the waste liquid recovery unit through the fluid-discharge tube that sets up the check valve 5 for discharge the waste liquid after washing in the commodity circulation passageway to the waste liquid recovery unit.
In the prior art, flushing liquid is connected between a filter and a delivery pump, the connection mode can cause incomplete cleaning, and high-concentration formaldehyde still remains in a feeding pipeline between the filter and the filter, so that the device is difficult to maintain full-load operation for a long time, and when the filter screen of the filter is cleared and overhauled, a large amount of formaldehyde gas volatilizes to pollute the environment, and the body health is seriously influenced;
it should be noted that the flushing fluid can be the flushing fluid that does not influence formaldehyde polymerization, and the preferred temperature is equal to or greater than 90 ℃ of flushing fluid, more preferred temperature is equal to or greater than 90 ℃ of hot water, and the flushing fluid unit sets up the heating device who is used for heating the flushing fluid.
Specifically, the device of the utility model, through setting the flushing pipe in front of the filter, regularly (for example, every 24h) put through the inlet cut-off valve 6, open the pump inlet valve 7 and the bleeder valve 8, send the flushing liquid from the flushing liquid unit into the material flow channel for no dead angle flushing, solve because of the high auto-agglutination of formaldehyde concentration block the equipment pipeline and flush the problem not thorough;
in the prior art well high concentration formaldehyde auto-agglutination easily causes to lead drenches the unable normal flowing back pressure release of mouth jam, there is the risk during the maintenance, the utility model discloses a device closes pump inlet valve 7 before filter screen gives out the maintenance, switch-on entry trip valve 6 and bleeder valve 8, the bleeder valve 8 is closed after washing from pump inlet valve 7 to the commodity circulation passageway of formaldehyde polymerization unit a period (for example 2-5min), switch-on check valve 5, remaining waste liquid that washes in the evacuation commodity circulation passageway, drench mouthful entering waste liquid recovery unit through leading, realize airtight emission, effectively solve the problem of discharging the pressure release, the personal safety who has guaranteed to give out the maintainer has reduced the pollution to the environment again promptly.
According to a preferred embodiment of the invention, the drain pipe is provided with a waste valve 9.
According to the utility model relates to a preferred embodiment, be located check valve 4 with between waste liquid valve 9 the fluid-discharge tube passes through branch pipe intercommunication flush fluid unit, the branch pipe sets up at least one control valve 4 on the road. Specifically, the flushing liquid unit includes the power pump, closes check valve 5 after the flowing back of every turn finishes, and 4 pump pumps the flushing liquid of switch-on control valve and wash the fluid-discharge tube, avoid blockking up the fluid-discharge tube.
According to a preferred embodiment of the invention, the branch pipe communicates with the flushing pipe. The control valves 4 arranged by the branch pipes can prevent the leaked formaldehyde from flowing back to block pipelines and pollute flushing liquid units.
According to the utility model relates to a preferred embodiment, the washing pipe is outer and/or the branch pipe is outer to be wrapped up in the heat preservation, when using contains thermal washing liquid, for example when being greater than or equal to 90 ℃ hot water, can reduce heat loss, energy saving.
According to a preferred embodiment of the invention, the heat tracing pipe is wound outside the inlet pipe and/or outside the outlet pipe. Specifically, the heat tracing pipe is communicated with a steam generating unit for generating steam, the low-temperature and high-concentration formaldehyde is easy to block a pipeline by self-polymerization, and a 0.4Mpa (G) steam copper pipe is adopted to wind heat tracing to ensure that the temperature outside a feeding pipeline and/or a discharging pipeline is prevented from self-polymerization.
According to a preferred embodiment of the present invention, the filter 16 is provided with a 0.1mpa (g) steam jacket for heat tracing.
It should be noted that, the steam jacket of 0.1mpa (g) is communicated with the steam generating unit, the prior art adopts the steam jacket of 0.4mpa (g) for heat tracing, the temperature of the steam of 0.4mpa (g) is about 142 ℃, the high temperature causes the long time of surrender and maintenance when the filter 16 cleans the filter screen, and the high temperature of the medium at the inlet of the delivery pump causes cavitation erosion to damage the delivery pump, the cost of inspection and maintenance is high; the utility model discloses a 0.1Mpa (G) steam jacket, the temperature can enough guarantee to press from both sides the cover temperature about 100 ℃, has shortened the filter time of handing over again, improves the maintenance efficiency of handing over, has reduced because of the phenomenon of the high dense aldehyde delivery pump cavitation of high temperature, has reduced the maintenance cost of the equipment damage of examining.
According to a preferred embodiment of the invention, the delivery pump 15 is provided with a hot water jacket for heat tracing. The hot water jacket is communicated with a hot water supply unit or a steam generation unit.
According to the utility model relates to a preferred embodiment, waste liquid recovery unit includes:
the waste liquid recovery tank is communicated with the liquid discharge pipe and is used for storing the washed waste liquid;
the waste liquid recovery tank is communicated with the solid-liquid separation device and is used for removing solid impurities in the waste liquid;
the separation device is communicated with an evaporator provided with a vapor outlet and a liquid outlet and is used for evaporating formaldehyde in the waste liquid and discharging the formaldehyde through the vapor outlet, and the liquid after removing the formaldehyde is discharged from the liquid outlet. Specifically, the difference between the boiling point of formaldehyde and the boiling point of water is large, so that the formaldehyde and the water are separated by evaporation, thereby providing a basis for the recovery of the formaldehyde.
According to the utility model relates to a preferred embodiment, the steam outlet intercommunication formaldehyde concentration unit for with the formaldehyde of the evaporation in the waste liquid send back to formaldehyde concentration unit. By adopting the optimization, the formaldehyde is recycled, the production cost is saved, and the environment protection is facilitated.
According to the utility model relates to a preferred embodiment, the liquid outlet intercommunication flush fluid unit for the liquid after will getting rid of formaldehyde is sent back flush fluid unit recycle. Adopt aforementioned preferred to make the flush fluid can be at device internal recycle, water economy resource and manufacturing cost.
It is required to explain, according to actual need the utility model discloses can increase spare parts commonly used such as control valve, pump, instrument, the utility model discloses an electrical part that needs the power consumption all connects the power through the wire, to this, the utility model discloses no special requirement does not describe in detail.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. However, these simple modifications and combinations should also be considered as disclosed in the present invention, and all fall within the scope of protection of the present invention.
Claims (10)
1. An anti-blocking polyformaldehyde concentration device is characterized by comprising a delivery pump (15),
the delivery pump (15) is communicated with the formaldehyde polymerization unit through a discharge pipeline provided with a discharge valve (8);
the conveying pump (15) is communicated with the formaldehyde concentration unit through a feeding pipeline, and a pump inlet valve (7), a flushing liquid inlet, a filter (16) and a guide shower opening (17) are sequentially arranged on the feeding pipeline along the material flow direction;
the flushing liquid inlet is communicated with a flushing liquid unit through a flushing pipe provided with an inlet stop valve (6), so that the flushing liquid can enter the logistics channel for thorough flushing;
and the guide spraying port (17) is communicated with the waste liquid recovery unit through a liquid discharge pipe provided with a one-way valve (5) and is used for discharging the waste liquid after flushing in the logistics channel to the waste liquid recovery unit.
2. The anti-clogging polyoxymethylene concentration device according to claim 1, wherein the liquid discharge pipe is provided with a waste liquid valve (9).
3. The anti-blocking polyformaldehyde concentration device according to claim 1 or 2, wherein the drain pipe is communicated with a flushing liquid unit through a branch pipe, and at least one control valve (4) is arranged on the branch pipe.
4. The anti-clogging polyoxymethylene concentration device according to claim 3, wherein the branch pipe communicates with a flushing pipe.
5. The anti-blocking polyoxymethylene concentration device according to claim 4, wherein the flushing pipe and/or the branch pipe is wrapped with an insulation layer.
6. The anti-clogging polyoxymethylene concentration device of claim 1, wherein a heat trace tube is wrapped outside the feed tube line and/or outside the discharge tube line.
7. The anti-clogging polyoxymethylene concentration device of claim 1, wherein the filter (16) is provided with a 0.1Mpa steam jacket for heat tracing.
8. The anti-clogging polyoxymethylene concentration device of claim 1, wherein the transfer pump (15) is provided with a hot water jacket for heat tracing.
9. The anti-clogging polyoxymethylene concentration device according to claim 1, wherein the waste liquid recovery unit includes:
the waste liquid recovery tank is communicated with the liquid discharge pipe and is used for storing the washed waste liquid;
the waste liquid recovery tank is communicated with the solid-liquid separation device and is used for removing solid impurities in the waste liquid;
the separation device is communicated with an evaporator provided with a vapor outlet and a liquid outlet and is used for evaporating formaldehyde in the waste liquid and discharging the formaldehyde through the vapor outlet, and the liquid after removing the formaldehyde is discharged from the liquid outlet.
10. The anti-blocking polyformaldehyde concentration device according to claim 9, wherein the vapor outlet is communicated with the formaldehyde concentration unit and is used for returning evaporated formaldehyde in waste liquid to the formaldehyde concentration unit;
and/or
The liquid outlet is communicated with the flushing liquid unit and is used for returning the liquid with the formaldehyde removed to the flushing liquid unit for recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220766685.0U CN217431071U (en) | 2022-03-31 | 2022-03-31 | Anti-blocking polyformaldehyde concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220766685.0U CN217431071U (en) | 2022-03-31 | 2022-03-31 | Anti-blocking polyformaldehyde concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217431071U true CN217431071U (en) | 2022-09-16 |
Family
ID=83216287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220766685.0U Active CN217431071U (en) | 2022-03-31 | 2022-03-31 | Anti-blocking polyformaldehyde concentration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217431071U (en) |
-
2022
- 2022-03-31 CN CN202220766685.0U patent/CN217431071U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101793390A (en) | Comprehensive recovery method and system of condensation water and dead steam | |
| CN203791247U (en) | Secondary side pipe plate sludge flushing system for steam generator | |
| CN103697524A (en) | Double-backpressure circulating water heating system | |
| CN103438428A (en) | Closed steam condensate water high-temperature recovery system | |
| CN217431071U (en) | Anti-blocking polyformaldehyde concentration device | |
| CN103523842B (en) | Deaerator exhaust steam recovery device and recovery process | |
| CN105502696A (en) | Constant pressure water-supplementing and degassing unit | |
| CN201321389Y (en) | Sewage evaporation and utilization system under furfural production tower | |
| CN101446410A (en) | Method for recycling the afterheat of continuous blowdown extension tank and device thereof | |
| CN111664440A (en) | Boiler blow-down waste heat recycling device and method | |
| CN1699145A (en) | Continuous sulfur recovery apparatus | |
| CN209196826U (en) | A kind of boiler arranges drained water recovery system surely | |
| CN204454950U (en) | The device of a kind of sulfonic acid de-sulphur trioxide in producing | |
| CN111033121A (en) | Double-loop nuclear reactor steam generating device with purging and draining system | |
| CN209237691U (en) | Tail gas and subsequent acidic water treatment facilities when a kind of damage | |
| CN104864765B (en) | Vacuum water feeding system of cooling tower | |
| CN208980473U (en) | Boiler platoon water heats feed water by reverse osmosis device | |
| CN207196462U (en) | A kind of equipment for eliminating condensate in deaerator exhaust pipe | |
| CN213101254U (en) | Waste gas treatment device for environmental protection | |
| CN212188561U (en) | SNCR (selective non-catalytic reduction) denitration system with zero wastewater discharge | |
| CN205953572U (en) | Methyl alcohol / separation of water tower wastewater discharge system | |
| CN208980368U (en) | High-pressure spray type oxygen-eliminating device | |
| CN206113688U (en) | Dead steam recycling device | |
| CN205907197U (en) | Concentrated sulfuric acid dilutes equipment on line for ammonia -acid process compound fertilizer production | |
| CN204111356U (en) | High-efficiency grey water de-aerator plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |