CN203485360U - Foaming system used in production of polyurethane foam heat-preserving pipe - Google Patents
Foaming system used in production of polyurethane foam heat-preserving pipe Download PDFInfo
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- CN203485360U CN203485360U CN201320546006.XU CN201320546006U CN203485360U CN 203485360 U CN203485360 U CN 203485360U CN 201320546006 U CN201320546006 U CN 201320546006U CN 203485360 U CN203485360 U CN 203485360U
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- efferent duct
- production
- temperature control
- pipe
- foaming system
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Abstract
The utility model discloses a foaming system used in production of a polyurethane foam heat-preserving pipe. The foaming system comprises two storage tanks with stirring shafts, wherein feed inlets and stirring and driving equipment are installed at the top ends of the storage tanks, the stirring shafts are connected with the stirring and driving equipment, the bottom ends of the storage tanks are connected with an input port of a temperature control device through a first output pipe, the output port of the temperature control device is connected with a second output pipe, the second output pipe is connected with a mixed pipe, and the first output pipe is provided with a flow pump. The foaming system disclosed by the utility model has the beneficial effects that the foaming system is high in controlled precision and good in stability, and can effectively solve the deficiency that the temperature is hard to control, reduce the production control difficulty and meanwhile improve the operability and safety of the production process, reduce the loss of materials and equipment, improve the production efficiency and lower the production cost. The foaming system has the characteristics of safety, economy and practicality.
Description
Technical field
The utility model relates to the production field of polyurethane foam heat-insulation pipe, the foamed system of use in producing in particular to a kind of polyurethane foam heat-insulation pipe.
Background technology
Polyurethane foam plastics insulating tube (is called for short: be yellow jacket) a kind of pipeline of heat-insulating property excellence, be widely used in the industries such as oil, petrochemical industry, municipal administration and carry as the insulation of heating power medium.The production method of insulating tube mainly contains one-step method and two-step method, wherein One-step production polyurethane foam plastics insulating tube technique has the features such as speed of production is fast, good economy performance, it is the main technique that current insulating tube is produced, the production system of One-step production polyurethane foam plastics insulating tube technique mainly comprises that extrusion system, shaping system, foamed system and trailer system form, each system cooperatively interacts, thereby produces qualified product.
The foamed system that in correlation technique, polyurethane foam heat-insulation pipe is used in producing is mainly comprised of storage tank and measuring pump, in whole system, lack the control to the temperature of expanded material, when raw material is in flow process, be subject to the impact of ambient air temperature, easily cause liquid charging stock variations in temperature large, make the speed of raw material when foaming be difficult to stable, thereby cause insulating tube to produce a large amount of cavities, affected the quality of insulating tube, the phenomenon that also there will be foamed system to stop up when serious, thereby cause producing, interrupt, have a strong impact on production efficiency.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide the foamed system using in a kind of polyurethane foam heat-insulation pipe production.
For achieving the above object, the foamed system using in a kind of polyurethane foam heat-insulation pipe production is provided in the utility model embodiment, comprise that two with the storage tank of shaft, the top of storage tank is installed charging aperture and is stirred driving arrangement, shaft is connected with stirring driving arrangement, the bottom of storage tank connects the input port of temperature control equipment by the first efferent duct, the delivery outlet of temperature control equipment connects the second efferent duct, and the second efferent duct connects mixing tube; On the first efferent duct, settle measuring pump.
Further, temperature control equipment comprises two casings that are fixedly connected with, and is provided with bending pipe and heating rod in casing, and the top of heating rod connects temperature controller by power line, the first efferent duct is connected with the bottom of bending pipe, and the top of bending pipe is connected with the second efferent duct; Bottom and the top in casing outside are installed into respectively the mouth of a river and delivery port.
Further, on the first efferent duct, between measuring pump and storage tank, be mounted with filter, in filter, be laterally fixedly connected with screen pack.
Further, on the first efferent duct, entrance point and the port of export near filter settled manual ball valve.
Further, on the second efferent duct, connect ball-and-seat.
Further, mixer drive comprises buncher and the reductor being connected with buncher.
The beneficial effects of the utility model are: the utility model control accuracy is high, equipment operating performance is good, on the basis of existing system, increased temperature control equipment, guaranteed the bath temperature that raw material is required, good stability, the advantage that environmental impact factor is controlled, can effectively solve the disadvantage of the bad control of temperature, reduce production control difficulty, improved product quality, improved operability and the security in production process simultaneously, the loss of material and the damage of equipment have been reduced, improved production efficiency, reduced production cost, there is safety, economical, practical feature.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the foamed system of use during a kind of polyurethane foam heat-insulation pipe described in the utility model embodiment is produced.
In figure,
1, storage tank; 2, filter; 3, shaft; 4, stir driving arrangement; 5, charging aperture; 6, screen pack; 7, measuring pump; 8, temperature control equipment; 9, bending pipe; 10, manual ball valve; 11, heating rod; 12, temperature controller; 13, ball-and-seat; 14, the first efferent duct; 15, the second efferent duct; 16, mixing tube; 17, casing; 18, water inlet; 19, delivery port.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings the utility model is described in further detail.
As shown in Figure 1, the foamed system that a kind of polyurethane foam heat-insulation pipe described in the utility model embodiment is used in producing, comprise that two with the storage tank 1 of shaft 3, charging aperture 5 and mixer drive 4 are installed in the top of storage tank, shaft is connected with stirring driving arrangement, the bottom of storage tank connects the input port of temperature control equipment 8 by the first efferent duct 14, the delivery outlet of temperature control equipment connects the second efferent duct 15, the second efferent ducts and connects mixing tube 16; On the first efferent duct, settle measuring pump 7.
This system control accuracy is high, equipment operating performance is good, on the basis of existing system, increased temperature control equipment, guaranteed the bath temperature that raw material is required, good stability, the advantage that environmental impact factor is controlled, can effectively solve the disadvantage of the bad control of temperature, reduces production control difficulty, improved product quality, improve operability and the security in production process simultaneously, reduced the loss of material and the damage of equipment, improved production efficiency, reduce production cost, there is safe, economic, practical feature.
Further, temperature control equipment comprises two casings that are fixedly connected with 17, is provided with bending pipe 9 and heating rod 11 in casing, and the top of heating rod connects temperature controller 12 by power line, the first efferent duct is connected with the bottom of bending pipe, and the top of bending pipe is connected with the second efferent duct; Bottom and the top in casing outside are installed into respectively the mouth of a river 18 and delivery port 19.Temperature controller is used for arranging the temperature of heating rod, the utility model heats to control bath temperature by the heating rod in temperature control equipment to the water in temperature control equipment, thereby guaranteed the temperature range that raw material is required, the design of bending pipe is set in temperature control equipment in addition, extended raw material mobile time in temperature control equipment, be convenient to control the temperature of raw material, thereby make raw material foaming stable, reduce production control difficulty, improved product quality.
Further, on the first efferent duct, between measuring pump and storage tank, be mounted with filter 2, in filter, be laterally fixedly connected with screen pack 6.The design of filter, has guaranteed the purity of raw material, thereby raw material is flowed in pipeline, is not easy to stop up.
Further, on the first efferent duct, entrance point and the port of export near filter settled manual ball valve 10.Manual ball valve is a kind of more novel ball valve classification, it has some exclusive superiority of self structure, as not easy to wear without friction, sealing in switch, to open and close moment little etc., can realize the adjusting of medium and featuring rigid cutting-off, sealing is reliable, simple in structure, easy to maintenance, sealing surface and the sphere closure state of being everlasting, is difficult for by medium erosion, is widely used in oil, chemical industry, urban water supply and sewerage etc. and requires the strict operating mode of cutting off.
Further, on the second efferent duct, connect ball-and-seat 13.The design of ball-and-seat, good leak tightness, and good control, simple to operate, prevent that the medium in pipeline from flowing backwards, play the safety of the piping facilities such as protective valve group or pump.
Further, mixer drive comprises buncher and the reductor being connected with buncher.
During concrete use, operate this system and comprise the following steps:
(1) according to environmental requirement, setup control temperature, open temp control device;
(2) combined polyether of production and application and isocyanates are added in storage tank by charge door, stir, then open the manual ball valve of storage tank bottom, make liquid inflow filter;
(3) open filter outlet manual ball valve, raw material is flowed into measuring pump, according to the metered proportions setting, liquid is sent in temperature control equipment;
(4) liquid by temperature control equipment is accessed in foam gun by quick connecting pipe, under certain pressure condition, inject pipe sandwich, start foaming;
(5), while foaming, because material temperature is stable, only need make slight adjustment feed liquor amount or hauling speed according to foaming interface, thereby complete whole foaming process.
Operation principle of the present utility model: by the liquid raw material for foaming by the mode of allotment, filtration, temperature control, with in metering pumping people foam gun, guarantee that fluent material has stable temperature environment and comparatively pure performance when entering foam gun, realize stable reaction speed, thereby reduce the control difficulty of equipment, improve the quality level of product.
Embodiment 1: the insulating tube that production diameter is 114mm, and environment temperature is 10-15 ℃, and because temperature is lower, course of reaction speed is slower, and speed of production is very slow, and production efficiency is low, and materials'use amount strengthens simultaneously, and waste is serious.
(1) open the water inlet manual ball valve of temperature control equipment, to injected water in device, when water flows out from the delivery port of temperature control equipment, close into water manual ball valve.The heating-up temperature of setting the temperature control equipment of combined polyether is 21 ℃, and the heating-up temperature of setting the temperature control equipment of isocyanates is 30 ℃, opens heater switch, to water heat, temperature control;
(2) by producing combined polyether and isocyanates used, add in storage tank, under stirring condition, according to the specification of producing insulating tube, by catalyst, adjust the parameter of combined polyether, after adjustment finishes, combined polyether and isocyanates direct current, in mixing and filtrating device, are filtered; In filter process, when the combined polyether in case to be filtered and isocyanates reach regulation liquid level, open the manual ball valve of Rose Box bottom, make material enter measuring pump;
(3) speed of producing according to insulating tube, adjusts metering pump delivery, and the material of measuring pump outlet is entered in foam gun by temperature control equipment and ball-and-seat, starts foaming.
(4) when foaming finishes, should first close measuring pump, stop entering of material, then progressively close filter manual ball valve, storage tank bottom manual ball valve, and material in the pipeline being connected with foam gun is emptying.If for a long time used time not, add from filter with special-purpose solvent, whole pipeline is cleaned, guarantee that combined polyether and isocyanates do not occur residual in device.
Embodiment 2: the insulating tube that production diameter is 114mm, and environment temperature is 30-38 ℃, because temperature is higher, course of reaction speed is fast, foam inspires, hardening time is short, produces in a large amount of foam insulated pipe pipelines simultaneously and occur a large amount of cavities in combined polyether, and product quality occurs defective.
(1) open the water inlet manual ball valve of temperature control equipment, to injected water in device, when water flows out from the delivery port of temperature control equipment, regulate inflow, make the temperature of recirculated water remain on 20-25 ℃.
(2) by producing combined polyether and isocyanates used, add in storage tank, under stirring condition, according to the specification of producing insulating tube, by catalyst, adjust the parameter of combined polyether, after adjustment finishes, combined polyether and isocyanates direct current, in mixing and filtrating device, are filtered; In filter process, when the combined polyether in case to be filtered and isocyanates reach regulation liquid level, open the manual ball valve of Rose Box bottom, make material enter measuring pump.
(3) speed of producing according to insulating tube, adjusts metering pump delivery, and the material of measuring pump outlet is entered in foam gun by temperature control equipment and ball-and-seat, starts foaming.
(4) when foaming finishes, should first close measuring pump, stop entering of material, then progressively close filter manual ball valve, storage tank bottom manual ball valve, and material in the pipeline being connected with foam gun is emptying.If for a long time used time not, add from filter with special-purpose solvent, whole pipeline is cleaned, guarantee that combined polyether and isocyanates do not occur residual in device.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the foamed system that a polyurethane foam heat-insulation pipe is used in producing, it is characterized in that: comprise two storage tanks with shaft (3) (1), the top of storage tank is installed charging aperture (5) and is stirred driving arrangement (4), shaft is connected with stirring driving arrangement, the bottom of storage tank connects the input port of temperature control equipment (8) by the first efferent duct (14), the delivery outlet of temperature control equipment connects the second efferent duct (15), and the second efferent duct connects mixing tube (16); On the first efferent duct, settle measuring pump (7).
2. foamed system according to claim 1, it is characterized in that: temperature control equipment comprises two casings that are fixedly connected with (17), in casing, be provided with bending pipe (9) and heating rod (11), the top of heating rod connects temperature controller (12) by power line, the first efferent duct is connected with the bottom of bending pipe, and the top of bending pipe is connected with the second efferent duct; Bottom and the top in casing outside are installed into respectively the mouth of a river (18) and delivery port (19).
3. foamed system according to claim 1, is characterized in that: on the first efferent duct, between measuring pump and storage tank, be mounted with filter (2), be laterally fixedly connected with screen pack (6) in filter.
4. foamed system according to claim 3, is characterized in that: entrance point and the port of export near filter on the first efferent duct are settled manual ball valve (10).
5. foamed system according to claim 1, is characterized in that: on the second efferent duct, connect ball-and-seat (13).
6. foamed system according to claim 1, is characterized in that: mixer drive comprises buncher and the reductor being connected with buncher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546006.XU CN203485360U (en) | 2013-09-04 | 2013-09-04 | Foaming system used in production of polyurethane foam heat-preserving pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546006.XU CN203485360U (en) | 2013-09-04 | 2013-09-04 | Foaming system used in production of polyurethane foam heat-preserving pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203485360U true CN203485360U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546006.XU Expired - Fee Related CN203485360U (en) | 2013-09-04 | 2013-09-04 | Foaming system used in production of polyurethane foam heat-preserving pipe |
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| Country | Link |
|---|---|
| CN (1) | CN203485360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901322A (en) * | 2017-12-23 | 2018-04-13 | 天津市滨海新区塘沽建通防腐保温有限公司 | A kind of insulating foam foamed system |
| CN112947633A (en) * | 2021-04-06 | 2021-06-11 | 中集车辆(集团)股份有限公司 | Temperature control method and foamed sheet production equipment |
-
2013
- 2013-09-04 CN CN201320546006.XU patent/CN203485360U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901322A (en) * | 2017-12-23 | 2018-04-13 | 天津市滨海新区塘沽建通防腐保温有限公司 | A kind of insulating foam foamed system |
| CN112947633A (en) * | 2021-04-06 | 2021-06-11 | 中集车辆(集团)股份有限公司 | Temperature control method and foamed sheet production equipment |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140319 |