CN204369780U - A kind of output mechanism preparing high-concentration formaldehyde absorption tower - Google Patents
A kind of output mechanism preparing high-concentration formaldehyde absorption tower Download PDFInfo
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- CN204369780U CN204369780U CN201420870247.4U CN201420870247U CN204369780U CN 204369780 U CN204369780 U CN 204369780U CN 201420870247 U CN201420870247 U CN 201420870247U CN 204369780 U CN204369780 U CN 204369780U
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- formaldehyde
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Abstract
The utility model discloses a kind of output mechanism preparing high-concentration formaldehyde absorption tower, belong to formaldehyde preparing technical field.In formaldehyde solution transfer lime outer circumference in the utility model, uniform ring is wound with heat-insulating coil pipe, this heat-insulating coil pipe is connected with circulating water heating exchange system, circulating water heating exchange system comprises vapor heat exchanger, water of condensation tank and water circulating pump, the air outlet of vapour distributor is connected with the steam side entrance of vapor heat exchanger by pipeline, and the steam side outlet of vapor heat exchanger is by pipeline access water of condensation tank; The water inlet of heat-insulating coil pipe is connected with the water side outlet of vapor heat exchanger by pipeline, the water outlet of heat-insulating coil pipe is connected with the water side entrance of vapor heat exchanger by pipeline, between the water inlet and the water side outlet of vapor heat exchanger of heat-insulating coil pipe, be provided with water circulating pump; Formaldehyde gas transfer lime is surrounded with heat exchange coil uniformly.Main application of the present utility model is the polymerization effectively preventing formaldehyde solution in formaldehyde solution transfer lime.
Description
Technical field
The utility model relates to formaldehyde preparing technical field, more particularly, relates to a kind of output mechanism preparing high-concentration formaldehyde absorption tower.
Background technology
Along with expanding economy, various countries increase day by day to formaldehyde demand more than high-concentration formaldehyde especially 50% concentration, and its operation strategies is more more extensive than 37% formaldehyde, formaldehyde belongs to basic chemical industry product, purposes is widely had in every field, domestic and international market demand is all larger, along with expanding economy, promote the surge of 50% formaldehyde demand, especially at home, since the eighties in 20th century, domestic production can not meet the market requirement always, there is a large amount of import every year, formaldehyde products more than high-end military cause and eager especially demand 50% concentration of civil corporation.But industrial formaldehyde solution particularly high-concentration formaldehyde is very easily polymerized at low temperatures, produces number of polymers and have a strong impact on follow-up transport and processing use.
In prior art, the function that the formaldehyde solution transfer lime for the production of the absorption tower of high-concentration formaldehyde is not incubated, heats, is easily polymerized in high-concentration formaldehyde output procedure, therefore needs to improve this portion structure.
In prior art, when producing highly concentrated formaldehyde solution, entered the bottom sides on absorption tower from the formaldehyde gas of oxidizer by pipeline, generally need to lower the temperature to the formaldehyde gas in pipeline, to improve the assimilation effect that formaldehyde gas enters absorption tower.But lack heat reclaim unit on the pipeline of conveying formaldehyde gas, amount of heat is scattered and disappeared by transport pipe, causes heat waste, does not meet the requirement of energy-saving and emission-reduction in Industrial processes.
Chinese Patent Application No.: 201320255728.X, the applying date: on May 10th, 2013, invention and created name is: a kind of scale tank of store high concentrations formaldehyde, this application case is openly known clearly a kind of scale tank of store high concentrations formaldehyde, include the cell body of scale tank, be placed with pump in cell body, the drain pipe of pump stretches out outside cell body and the fluid inlet UNICOM of well heater, and the liquid outlet of well heater is by drain pipe access cell body; The top of cell body is provided with the radar for level gauging, and the end of probe of described radar is towards in cell body, and the signal output part of radar has access to digital indicator.High-concentration formaldehyde to be circulated transmission by the effect of pump by this utility model between cell body and well heater, achieves good heat insulation effect.The weak point of this utility model is, to be circulated by high-concentration formaldehyde transmission, easily cause formaldehyde solution to be revealed, cause security incident by the effect of pump between cell body and well heater.
Utility model content
1. the utility model technical problem that will solve
The purpose of this utility model is that overcome prior art middle and high concentration formaldehyde is easily polymerized in formaldehyde solution transfer lime, produce the deficiency that number of polymers affects subsequent transportation and processing use, provide a kind of output mechanism preparing high-concentration formaldehyde absorption tower, adopt the technical solution of the utility model, effectively can be prevented the polymerization of highly concentrated formaldehyde solution in formaldehyde solution transfer lime by the design of heat-insulating coil pipe and circulating water heating exchange system; Formaldehyde gas transfer lime is surrounded with heat exchange coil uniformly simultaneously, improves by this heat exchange coil the assimilation effect that formaldehyde gas enters absorption tower, reclaimed the heat of formaldehyde gas in formaldehyde gas transfer lime simultaneously.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present utility model, comprise formaldehyde absorbing tower, oxidation of formaldehyde device, vapour distributor and formaldehyde finished pot, in the middle part of described oxidation of formaldehyde device, outer wall is provided with tubulation wall, the venting port of this tubulation wall is connected with the inlet mouth of vapour distributor; Be provided with formaldehyde gas outlet bottom described oxidation of formaldehyde device, the outlet of this formaldehyde gas is connected with formaldehyde absorbing tower bottom sides by formaldehyde gas transfer lime; Described formaldehyde absorbing tower bottom is provided with formaldehyde solution outlet, and the outlet of this formaldehyde solution is connected to formaldehyde finished pot by formaldehyde solution transfer lime;
In described formaldehyde solution transfer lime outer circumference, uniform ring is wound with heat-insulating coil pipe, this heat-insulating coil pipe is connected with circulating water heating exchange system, described circulating water heating exchange system comprises vapor heat exchanger, water of condensation tank and water circulating pump, the air outlet of described vapour distributor is connected with the steam side entrance of vapor heat exchanger by pipeline, and the steam side outlet of vapor heat exchanger is by pipeline access water of condensation tank; The water inlet of described heat-insulating coil pipe is connected with the water side outlet of vapor heat exchanger by pipeline, the water outlet of heat-insulating coil pipe is connected with the water side entrance of vapor heat exchanger by pipeline, between the water inlet and the water side outlet of vapor heat exchanger of heat-insulating coil pipe, be provided with water circulating pump; Described formaldehyde gas transfer lime is surrounded with heat exchange coil uniformly.
Further improve as the utility model, described formaldehyde solution transfer lime is provided with temperature sensor, and this temperature sensor is connected with PLC control system.
Further improve as the utility model, between the air outlet of described vapour distributor and the steam side entrance of vapor heat exchanger, be provided with steam flow control valve.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following beneficial effect:
(1) a kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present utility model, formaldehyde solution transfer lime is provided with heat-insulating coil pipe, this heat-insulating coil pipe is connected with circulating water heating exchange system, the saturated steam that circulating water heating exchange system utilizes oxidation of formaldehyde device to produce carries out heat supply as thermal source to heat-insulating coil pipe, make the temperature-controllable of formaldehyde solution transfer lime, thus avoid the highly concentrated formaldehyde solution in formaldehyde solution transfer lime to be polymerized when temperature drop is lower, meet the user demand of enterprise.
(2) a kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present utility model, formaldehyde gas transfer lime is provided with heat exchange coil, the assimilation effect that formaldehyde gas enters absorption tower is improve by this heat exchange coil, reclaim the heat of formaldehyde gas in formaldehyde gas transfer lime simultaneously, meet the requirement of energy-saving and emission-reduction in Industrial processes.
(3) saturated steam that the circulating water heating exchange system in the utility model utilizes oxidation of formaldehyde device to produce, as thermal source, reasonably make use of the heat produced in formaldehyde production, achieves the recycling of heat.
(4) a kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present utility model, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is a kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present utility model.
Label declaration in schematic diagram: 1, vapour distributor; 2, steam flow control valve; 3, vapor heat exchanger; 4, water of condensation tank; 5, water circulating pump; 6, formaldehyde finished pot; 7, heat-insulating coil pipe; 8, heat exchange coil; 9, formaldehyde absorbing tower; 10, oxidation of formaldehyde device.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As shown in Figure 1, a kind of output mechanism preparing high-concentration formaldehyde absorption tower of the present embodiment, mainly comprise formaldehyde absorbing tower 9, oxidation of formaldehyde device 10, vapour distributor 1 and formaldehyde finished pot 6, in the middle part of oxidation of formaldehyde device 10, outer wall is provided with tubulation wall, material mixed gas carries out oxidizing reaction and obtains formaldehyde gas in oxidation of formaldehyde device 10, a large amount of reaction heat that above-mentioned oxidizing reaction is released carries out heat exchange with the soft water from oxidizer gas bag by tubulation wall, in tubulation wall, produce a large amount of saturated steam.The venting port of this tubulation wall is connected by steam conveying pipe with the inlet mouth of vapour distributor 1, and above-mentioned saturated steam enters vapour distributor 1 by steam conveying pipe from the venting port of tubulation wall.
Be provided with formaldehyde gas outlet bottom oxidation of formaldehyde device 10 in the present embodiment, the outlet of this formaldehyde gas is connected with formaldehyde absorbing tower 9 bottom sides by formaldehyde gas transfer lime.The formaldehyde gas that in oxidation of formaldehyde device 10, oxidizing reaction obtains enters formaldehyde absorbing tower 9 bottom sides by formaldehyde gas transfer lime.Formaldehyde gas transfer lime in the present embodiment is surrounded with heat exchange coil 8 uniformly, formaldehyde gas temperature in this formaldehyde gas transfer lime is at 150 DEG C-180 DEG C, the water of 70 DEG C is passed into reduce the temperature of formaldehyde gas transfer lime in heat exchange coil 8, thus reduce the temperature of formaldehyde gas, improve the assimilation effect that formaldehyde gas enters absorption tower; Formaldehyde gas transfer lime is by the water heating in heat exchange coil 8 simultaneously, adds the factor of created gase of steam, has reclaimed heat.Formaldehyde absorbing tower 9 bottom in the present embodiment is provided with formaldehyde solution outlet, and the outlet of this formaldehyde solution is connected to formaldehyde finished pot 6 by formaldehyde solution transfer lime.In above-mentioned formaldehyde solution transfer lime outer circumference, uniform ring is wound with heat-insulating coil pipe 7, this heat-insulating coil pipe 7 is connected with circulating water heating exchange system, circulating water heating exchange system supplies circulating hot water constantly to heat-insulating coil pipe 7, make heat-insulating coil pipe 7 heat formaldehyde solution transfer lime, and then control the temperature of formaldehyde solution transfer lime.
Circulating water heating exchange system in the present embodiment comprises vapor heat exchanger 3, water of condensation tank 4 and water circulating pump 5, a road steam is drawn in the air outlet of vapour distributor 1, this steam is connected with the steam side entrance of vapor heat exchanger 3 by pipeline, steam carries out heat exchange in vapor heat exchanger 3, the water of condensation generated is discharged from the steam side outlet of vapor heat exchanger 3, is recycled by pipeline access water of condensation tank 4.The water inlet of heat-insulating coil pipe 7 is connected with the water side outlet of vapor heat exchanger 3 by pipeline, the water outlet of heat-insulating coil pipe 7 is connected with the water side entrance of vapor heat exchanger 3 by pipeline, water circulating pump 5 is provided with between the water inlet and the water side outlet of vapor heat exchanger 3 of heat-insulating coil pipe 7, by this water circulating pump 5, recirculated water is circulated between heat-insulating coil pipe 7 and vapor heat exchanger 3, thus the heat of vapour distributor 1 being drawn steam is constantly exchanged on formaldehyde solution transfer lime, and then control the temperature of formaldehyde solution transfer lime.Applicant is found by great many of experiments, highly concentrated formaldehyde solution in formaldehyde solution transfer lime, if formaldehyde solution transfer lime temperature is too low, is then easily polymerized, by controlling the temperature of formaldehyde solution transfer lime, can highly concentrated formaldehyde solution be effectively avoided to be polymerized.
In addition, steam flow control valve 2 is provided with between the air outlet of the vapour distributor 1 in the present embodiment and the steam side entrance of vapor heat exchanger 3, the flow of steam can be controlled by this steam flow control valve 2, reach the control to vapor heat exchanger 3 heat, thus control the temperature of formaldehyde solution transfer lime.Formaldehyde solution transfer lime is provided with temperature sensor, this temperature sensor is connected with PLC control system, when formaldehyde solution transfer lime too high or too low for temperature, capable of automatic alarm, the temperature of formaldehyde solution transfer lime can be made to maintain in stated limit by steam regulation flow control valve 2.
Schematically above be described the utility model and embodiment thereof, this description does not have restricted, and also just one of the embodiment of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (3)
1. prepare the output mechanism on high-concentration formaldehyde absorption tower for one kind, comprise formaldehyde absorbing tower (9), oxidation of formaldehyde device (10), vapour distributor (1) and formaldehyde finished pot (6), described oxidation of formaldehyde device (10) middle part outer wall is provided with tubulation wall, and the venting port of this tubulation wall is connected with the inlet mouth of vapour distributor (1); Described oxidation of formaldehyde device (10) bottom is provided with formaldehyde gas outlet, and the outlet of this formaldehyde gas is connected with formaldehyde absorbing tower (9) bottom sides by formaldehyde gas transfer lime; Described formaldehyde absorbing tower (9) bottom is provided with formaldehyde solution outlet, and the outlet of this formaldehyde solution is connected to formaldehyde finished pot (6) by formaldehyde solution transfer lime; It is characterized in that:
In described formaldehyde solution transfer lime outer circumference, uniform ring is wound with heat-insulating coil pipe (7), this heat-insulating coil pipe (7) is connected with circulating water heating exchange system, described circulating water heating exchange system comprises vapor heat exchanger (3), water of condensation tank (4) and water circulating pump (5), the air outlet of described vapour distributor (1) is connected by the steam side entrance of pipeline with vapor heat exchanger (3), and the steam side outlet of vapor heat exchanger (3) is by pipeline access water of condensation tank (4); The water inlet of described heat-insulating coil pipe (7) is connected by the water side outlet of pipeline with vapor heat exchanger (3), the water outlet of heat-insulating coil pipe (7) is connected by the water side entrance of pipeline with vapor heat exchanger (3), between the water inlet and the water side outlet of vapor heat exchanger (3) of heat-insulating coil pipe (7), be provided with water circulating pump (5);
Described formaldehyde gas transfer lime is surrounded with uniformly heat exchange coil (8).
2. a kind of output mechanism preparing high-concentration formaldehyde absorption tower according to claim 1, is characterized in that: described formaldehyde solution transfer lime is provided with temperature sensor, and this temperature sensor is connected with PLC control system.
3. a kind of output mechanism preparing high-concentration formaldehyde absorption tower according to claim 1 and 2, is characterized in that: be provided with steam flow control valve (2) between the air outlet of described vapour distributor (1) and the steam side entrance of vapor heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870247.4U CN204369780U (en) | 2014-12-31 | 2014-12-31 | A kind of output mechanism preparing high-concentration formaldehyde absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870247.4U CN204369780U (en) | 2014-12-31 | 2014-12-31 | A kind of output mechanism preparing high-concentration formaldehyde absorption tower |
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| Publication Number | Publication Date |
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| CN204369780U true CN204369780U (en) | 2015-06-03 |
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| CN201420870247.4U Expired - Fee Related CN204369780U (en) | 2014-12-31 | 2014-12-31 | A kind of output mechanism preparing high-concentration formaldehyde absorption tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963740A (en) * | 2016-04-29 | 2016-09-28 | 大连华立金港药业有限公司 | Formaldehyde fumigating tank and sterilizing method |
-
2014
- 2014-12-31 CN CN201420870247.4U patent/CN204369780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963740A (en) * | 2016-04-29 | 2016-09-28 | 大连华立金港药业有限公司 | Formaldehyde fumigating tank and sterilizing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20181231 |