CN109159347A - A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system - Google Patents
A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system Download PDFInfo
- Publication number
- CN109159347A CN109159347A CN201811288356.4A CN201811288356A CN109159347A CN 109159347 A CN109159347 A CN 109159347A CN 201811288356 A CN201811288356 A CN 201811288356A CN 109159347 A CN109159347 A CN 109159347A
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- Prior art keywords
- temperature control
- filter
- pipe
- control cavity
- valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed systems comprising material storage mechanism, filter mechanism, temperature control mechanism, mixed organization, conveying mechanism, the material storage mechanism include the first and second storage tank；The filter mechanism includes pure combined polyether filter and pure isocyanates filter, and the temperature control mechanism includes the first, second and third temperature control cavity being mutually insulated；The mixed pressure mechanism includes feeding assembly and pressure assembly, and the supply assembly includes charging reducer pipe, mixing valve and connects gun barrel；The pressure assembly includes the first air compressor machine, air filter and shut-off valve；The conveying mechanism cold burden delivery pipe and hot material delivery pipe.This system realizes the conveying section of two kinds of foaming raw materials of combined polyether isocyanates is individually heated up, is mixed after foam inhibit, so that feed liquid after getting can fast foaming, overcome that traditional foaming machine foaming starting velocity is slow, the non-uniform defect of bubble in the process.
Description
Technical field
The present invention relates to a kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed systems.
Background technique
The heat-insulating layer foaming system of polyurethane foam direct-buried thermal insulation pipe in the related technology is mainly by storage tank and metering pump group
At, since the reaction start-up temperature of two kinds of raw materials of composition foamed material is different, injection insulating tube inner and outer pipe after low-temperature mixed
After shell, reaction starting early period speed is slower, needs as after exothermic heat of reaction, expansion rate can be just gradually increased, this process is past
Toward causing heat-insulating layer foaming speed to be difficult to stablize, so that heat preservation formable layer is uneven or a large amount of empty, directly results in and fill out
Fill insulating layer efficiency bottom, the defects of insulating layer Forming Quality is poor.
Summary of the invention
The technical problem to be solved by the present invention is to how overcome the drawbacks described above of the prior art, a kind of direct-buried thermal insulation pipe is provided
Polyurethane foam insulation layer foamed system.
In order to solve the above technical problems, this direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system include material storage mechanism,
Filter mechanism, temperature control mechanism, mixed organization, conveying mechanism, wherein the material storage mechanism includes for containing combined polyether
One storage tank and the second storage tank for containing isocyanates are equipped with thin material inside the first and second storage tank and stir evenly component, and
One, cold burden feed inlet and cold burden discharge port are equipped with outside two storage tanks, the cold burden discharge port is equipped with logical only valve；The mistake
Filter structure includes pure combined polyether filter and pure isocyanates filter, and the thin material combined polyether filter is connected to
Below the cold burden discharge port of first storage tank, the thin material isocyanates filter is connected to the cold of second storage tank
Expect below discharge port, is equipped with three layers of strainer, the filter mechanism upper end in the thin material combined polyether, isocyanates filter
It is connected with the logical only valve；The temperature control mechanism includes the first temperature control cavity, the second temperature control cavity, third temperature control being mutually insulated
Chamber is equipped with heat-exchange tube and heating tube in the first and second temperature control cavity, hot material feed inlet and heat is equipped in the first and second temperature control cavity
Expect discharge port, third temperature control cavity is connected with condensate water circulatory component on lower section；The mixing mechanism includes feeding assembly and pressure
Component, the supply assembly include charging reducer pipe, three-way piece, mixing valve and connect gun barrel；The pressure assembly includes first empty
Press, air filter and shut-off valve, the pressure assembly, which is cut, to be tiltedly mounted on above the supply assembly；It is set on the mixing valve
There is the valve chamber expanded, and in being equipped with agitator arm in the valve chamber, the charging reducer pipe is connected to and in communication with described by three-way piece
Mixing valve, the shut-off valve are connected to and in communication with the valve chamber；The third temperature control cavity setting is in the mixing valve and connects gun barrel
It is external；The conveying mechanism includes two cold burden delivery pipes and two hot material delivery pipes；In two cold burden delivery pipes, one
Cold burden delivery pipe both ends are separately connected the hot material feed inlet of pure combined polyether filter and the first temperature control cavity, and another cold burden is defeated
The hot material feed inlet for sending pipe both ends to be separately connected pure isocyanates filter and the second temperature control cavity, the cold burden delivery pipe and institute
State pure combined polyether, the junction of isocyanates filter is equipped with metering pump；In two hot material delivery pipes, a hot material
Delivery pipe both ends are separately connected the hot material discharge port and charging reducer pipe of first temperature control cavity, another hot material delivery pipe both ends
The hot material discharge port and charging reducer pipe, the hot material delivery pipe for being separately connected second temperature control cavity are connect with charging reducer pipe
Place is equipped with ball-and-seat.It is designed in this way, the combined polyether that uses of foaming and isocyanates by cold burden feed inlet is separately added into the
One, two storage tank, combined polyether and isocyanates feed liquid after stirring evenly component and stirring evenly, are filtered through logical only valve to corresponding in storage tank
Mixed removal of impurities in the feed is filtered in device, recycles metering pump, it is in proportion that combined polyether and isocyanates is defeated through cold burden respectively
Send tube pump to enter the first and second temperature control cavity, in hot traffic control spiral coil respectively be heated in the first and second temperature control cavity pipe heating heat
After matchmaker's liquid carries out heat exchange, it is delivered in mixing valve by hot material delivery pipe, foam material pending, pressure is mixed by agitator arm
Component feeds compressed air by air compressor machine and filters by air filter, and it is big to control pressure in mixed tune chamber using shut-off valve
Small, to mixing valve and even, gun barrel carries out reaction temperature adjusting to cooperation third temperature control cavity, and mixed foamed material is inhibited to be expert to material
Before rifle, reaction foaming in chamber and the even foaming of rifle coil pipe is adjusted mixed, can be shown according to thermometer during raw material preheating each intracavitary
Heating medium liquid temperature is passed through the cooling water temperature of inlet by adjusting temperature controller and control, to control the first, second and third temperature control
Intracavitary heating and cooling, metering pump are used for the mixed proportion of control combination polyethers and isocyanates, and ball-and-seat is for keeping mixed
It adjusts in chamber and even rifle coil pipe for inhibiting the pressure of foamable reaction, mixed foaming material is squeezed into the inside and outside pipe clamp of insulating tube to spray gun
After layer, pressure disappears, mixed foaming material reacts rapidly in the case where having temperature, and material temperature is stablized when foaming, only needs root
Make slight adjustment liquid inlet volume according to blistering interface or entire foaming process can be completed in hauling speed, to realize fast foaming in tank
Purpose, the Forming Quality of insulating layer is also improved while improving mixture bubbling efficiency.
As optimization, first, second and third temperature control cavity is equipped with thermometer, and the heat-exchange tube is one spiralling
Coil pipe, the heating rod are connected with temperature controller by power supply line.It is designed in this way, each intracavitary heating agent liquid that can be shown according to thermometer
Temperature is passed through the cooling water temperature of inlet by adjusting temperature controller and control, to control in the first, second and third temperature control cavity
Heating and cooling.
As optimization, the thin material stirs evenly component and includes decelerating motor, transmission shaft and stir evenly blade, wherein the deceleration
The abhiseca of first and second storage tank is arranged in motor, and the output shaft of decelerating motor protrudes into solid with the transmission axis connection in tank
Fixed, the blade file symmetrical expression that stirs evenly is laid on the transmission shaft.It is designed in this way, thin material stirs evenly component for pouring into out
Combined polyether and isocyanates in batch can stir evenly in case discharging.
As optimization, the condensate water circulatory component includes refrigerant pond, upper hose, downcomer and cooling tower, the upper water
Circulation transfer tube is equipped between pipe and downcomer, between the cooling tower setting refrigerant pond and third temperature control cavity.It is designed in this way, it is cold
But tower is used to carry out heat exchange with the circulation line that upper hose and downcomer are formed, and circulation transfer tube can be to be arranged on refrigerant pond
The mechanical pump of side or the immersible pump being arranged in refrigerant pond, this cooling tower are by air draft above the air draft of tower body lower part, middle section filler
Fan the traditional cooling tower structure constituted.
A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system control precision height of the present invention, equipment operation performance
It is good, by designing three parts temperature control device, cooperates the mixed control feature of spray gun leading portion, realize to combined polyether isocyanide
The conveying section of two kinds of foaming raw materials of acid esters individually heat up, mix after foam inhibit so that feed liquid after getting can fast foaming,
In addition this system additional design can prevent the mixed inlet air filtration pneumatics structure of foreign matter, traditional foaming machine is overcome
The starting velocity that foams is slow, bubble is uneven in the process, and cause filling heat insulating wall efficiency bottom in direct-buried thermal insulation pipe production process,
The defect of insulating layer Forming Quality difference.
Detailed description of the invention
A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system of the present invention is made furtherly with reference to the accompanying drawing
It is bright:
Fig. 1 is the planar structure schematic diagram of this direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system；
Fig. 2 is the schematic diagram of internal structure of this direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system；
In figure:
1- material storage mechanism, 2- filter mechanism, 3- temperature control mechanism, 4- mixed organization, 5- conveying mechanism；
The first storage tank of 11-, the second storage tank of 12-, 13- thin material stir evenly component, 14- cold burden feed inlet, the discharging of 15- cold burden
Mouth, 21- thin material combined polyether filter, 22- thin material isocyanates filter, 23- strainer, the first temperature control cavity of 31-, 32- second
Temperature control cavity, 33- third temperature control cavity, 34- heat-exchange tube, 35- heating tube, 36- hot material feed inlet, 37- hot material discharge port, 38- are cold
Condensate recirculation assembly, 39- thermometer, 41- feeding assembly, 42- pressure assembly, 51- cold burden delivery pipe, 52- hot material delivery pipe；
131- decelerating motor, 132- transmission shaft, 133- stir evenly blade, 151- logical only valve, 351- temperature controller, 381- refrigerant
Pond, 382- upper hose, 383- downcomer, 384- cooling tower, 385- circulation transfer tube, 411- charging reducer pipe, 412- three-way piece,
413- mixing valve, 414- connect gun barrel, 415- valve chamber, 416- agitator arm, the first air compressor machine of 421-, 422- air filter,
423- shut-off valve, 511- metering pump, 521- ball-and-seat.
Specific embodiment
As shown in Figure 1, 2, this direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system includes material storage mechanism 1, filter
Structure 2, temperature control mechanism 3, mixed organization 4, conveying mechanism 5, wherein the material storage mechanism 1 includes for containing combined polyether
One storage tank and the second storage tank 2 for containing isocyanates are equipped with thin material inside first and second storage tank 11,12 and stir evenly
Component 13 is equipped with cold burden feed inlet 14 and cold burden discharge port 15, the cold burden discharge port outside first and second storage tank 11,12
15 are equipped with logical only valve 151；The filter mechanism 2 includes pure combined polyether filter 21 and pure isocyanates filter
22, the thin material combined polyether filter 21 is connected to 15 lower section of cold burden discharge port of first storage tank 11, the thin material
Isocyanates filter 22 is connected to the lower section of cold burden discharge port 15 of second storage tank 11, the thin material combined polyether, different
Three layers of strainer 23 are equipped in cyanate filter 21,22,2 upper end of filter mechanism is connected with the logical only valve 151；Institute
Stating temperature control mechanism 3 includes the first temperature control cavity 31, the second temperature control cavity 32, third temperature control cavity 33 being mutually insulated, the first and second temperature control cavity
31, heat-exchange tube 34 and heating tube 35 are equipped in 32, are equipped with hot material feed inlet 36 and heat in the first and second temperature control cavity 31,32
Expect discharge port 37, third temperature control cavity is connected with condensate water circulatory component 38 on 33 lower section；The mixing mechanism 4 includes feeding assembly
41 and pressure assembly 42, the supply assembly 41 includes charging reducer pipe 411, three-way piece 412, mixing valve 413 and even gun barrel
414；The pressure assembly 42 includes the first air compressor machine 421, air filter 422 and shut-off valve 423, and the pressure assembly 42 is cut
Tiltedly it is mounted on 41 top of supply assembly；The mixing valve 413 is equipped with the valve chamber 415 expanded, and sets in the valve chamber 415
There is agitator arm 416, the charging reducer pipe 411 is connected to and in communication with the mixing valve 413, the cut-off by three-way piece 412
Valve 423 is connected to and in communication with the valve chamber 415；The setting of third temperature control cavity 33 is outside the mixing valve 413 and even gun barrel 414
Portion；The conveying mechanism 5 includes two cold burden delivery pipes 51 and two hot material delivery pipes 52；Two cold burden delivery pipes 51
In, 51 both ends of cold burden delivery pipe are separately connected the hot material feed inlet of pure combined polyether filter 21 and the first temperature control cavity 31
36, another 51 both ends of cold burden delivery pipe are separately connected pure isocyanates filter 22 and the hot material of the second temperature control cavity 32 is fed
Mouth 36, the cold burden delivery pipe 51 and the junction of the pure combined polyether, isocyanates filter 21,22 are equipped with metering pump
511；In two hot material delivery pipes 52,52 both ends of hot material delivery pipe are separately connected the hot material of first temperature control cavity 31
Discharge port 37 and charging reducer pipe 411, another 52 both ends of hot material delivery pipe are separately connected the hot material of second temperature control cavity 32
Discharge port 37 and charging reducer pipe 411, the hot material delivery pipe 52 are equipped with ball-and-seat 521 with charging 411 junction of reducer pipe.It will
The foam combined polyether that uses and isocyanates by cold burden feed inlet is separately added into the first and second storage tank, combined polyether and different
Cyanate feed liquid after stirring evenly component and stirring evenly, filter into respective filter through logical only valve in storage tank and mixes removing in the feed
It is miscellaneous, metering pump is recycled, combined polyether and isocyanates are pumped into the first and second temperature control cavity through cold burden delivery pipe respectively in proportion,
After carrying out heat exchange with the heating medium liquid for being heated pipe heating in the first and second temperature control cavity respectively in hot traffic control spiral coil, by
Hot material delivery pipe is delivered in mixing valve, is mixed into foam material pending by agitator arm, pressure assembly feeds pressure by air compressor machine
Contracting air is simultaneously filtered by air filter, controls pressure size in mixed tune chamber using shut-off valve, cooperation third temperature control cavity is to mixed
Expect valve and even gun barrel carries out reaction temperature adjusting, mixed foamed material is inhibited to be expert to spray gun, adjusts chamber and even rifle disk mixed
Reaction foaming, each intracavitary heating medium liquid temperature that raw material preheating can be shown in the process according to thermometer pass through adjusting in pipe foaming
Temperature controller and control are passed through the cooling water temperature of inlet, to control the heating and cooling in the first, second and third temperature control cavity, metering
Pump is used for the mixed proportion of control combination polyethers and isocyanates, and ball-and-seat is adjusted in chamber and even rifle coil pipe for keeping mixed for pressing down
The pressure of foamable reaction processed, after mixed foaming material is squeezed into insulating tube inner and outer pipe interlayer by spray gun, pressure disappearance, mixed foaming
Material reacts rapidly in the case where having temperature, and material temperature is stablized when foaming, need to only be made slightly to adjust according to blistering interface into
Entire foaming process can be completed in liquid measure or hauling speed, to realize the purpose of fast foaming in tank, improves mixture hair
The Forming Quality of insulating layer is also improved while steeping efficiency.
First, second and third temperature control cavity 31,32,33 is equipped with thermometer 39, and the heat-exchange tube 34 is a spiral
Coil pipe, the heating rod 35 is connected with temperature controller 351 by power supply line.Each intracavitary heating medium liquid that can be shown according to thermometer
Temperature is passed through the cooling water temperature of inlet by adjusting temperature controller and control, to control adding in the first, second and third temperature control cavity
Hot and cold is but.
The thin material stirs evenly component 13 including decelerating motor 131, transmission shaft 132 and stirs evenly blade 133, wherein described to subtract
Speed motor 131 is arranged in the abhiseca of first and second storage tank 11,12, the output shaft of decelerating motor 131 protrude into tank with it is described
Transmission shaft 132 is connected and fixed, and the 133 file symmetrical expression of blade that stirs evenly is laid on the transmission shaft 132.Thin material stirs evenly component
For stir evenly to the combined polyether and isocyanates that pour into discharge tank in case discharging.
The condensate water circulatory component 38 includes refrigerant pond 381, upper hose 382, downcomer 383 and cooling tower 384, described
Circulation transfer tube 385 is equipped between upper hose 382 and downcomer 383, refrigerant pond 381 and third temperature is arranged in the cooling tower 384
It controls between chamber 33.Used for cooling tower to carry out heat exchange in the circulation line with upper hose and downcomer formation, circulation transfer tube can be
The immersible pump that mechanical pump above refrigerant pond is set or is arranged in refrigerant pond, this cooling tower be by the air draft of tower body lower part, in
The traditional cooling tower structure that exhaust fan is constituted above section filler.
This system is cooperated the mixed control feature of spray gun leading portion, is realized pair by design three parts temperature control device
The conveying section of two kinds of foaming raw materials of combined polyether isocyanates is foamed after individually heating up, mixing to be inhibited, so that feed liquid is after getting
Can fast foaming overcome in addition this system additional design can prevent the mixed inlet air filtration pneumatics structure of foreign matter
Traditional foaming machine foaming starting velocity is slow, in the process bubble is uneven, and leads to filling out in direct-buried thermal insulation pipe production process
Fill the defect at insulating layer efficiency bottom, insulating layer Forming Quality difference.
Above embodiment, which is intended to illustrate the present invention, to be realized or use for professional and technical personnel in the field, to above-mentioned
Embodiment, which is modified, will be readily apparent to those skilled in the art, therefore the present invention includes but is not limited to
Above embodiment, it is any to meet the claims or specification description, meet with principles disclosed herein and novelty,
The method of inventive features, technique, product, fall within the scope of protection of the present invention.
Claims (5)
1. a kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system, it is characterized in that: including material storage mechanism (1), filter
Structure (2), temperature control mechanism (3), mixed organization (4), conveying mechanism (5), wherein
The material storage mechanism (1) includes the first storage tank for containing combined polyether and the second storage for containing isocyanates
Batch can (2), the first and second storage tank (11,12) inside are equipped with thin material and stir evenly component (13), and the first and second storage tank (11,12) is outside
Portion is equipped with cold burden feed inlet (14) and cold burden discharge port (15), and the cold burden discharge port (15), which is equipped with, leads to only valve (151).
2. direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system according to claim 1, it is characterized in that: the filtering
Mechanism (2) includes pure combined polyether filter (21) and pure isocyanates filter (22), the thin material combined polyether mistake
Filter (21) is connected to below the cold burden discharge port (15) of first storage tank (11), the thin material isocyanates filter
(22) it is connected to below the cold burden discharge port (15) of second storage tank (11), the institute pure combined polyether, isocyanates
Three layers of strainer (23) are equipped in filter (21,22), filter mechanism (2) upper end is connected with logical only valve (151)；
The temperature control mechanism (3) includes the first temperature control cavity (31) being mutually insulated, the second temperature control cavity (32), third temperature control cavity
(33), it is equipped with heat-exchange tube (34) and heating tube (35) in the first and second temperature control cavity (31,32), the first and second temperature control cavity (31,
32) be equipped on hot material feed inlet ((36) and hot material discharge port (37), below third temperature control cavity (33) on be connected with condensed water and follow
Ring assemblies (38)；
The mixing mechanism (4) includes feeding assembly (41) and pressure assembly (42), and the supply assembly (41) includes that charging becomes
Diameter pipe (411), three-way piece (412), mixing valve (413) and company gun barrel (414)；The pressure assembly (42) includes the first air compressor machine
(421), air filter (422) and shut-off valve (423), the pressure assembly (42), which is cut, is tiltedly mounted on the supply assembly (41)
Top；The mixing valve (413) is equipped with the valve chamber (415) that expands, and in being equipped with agitator arm (416) in the valve chamber (415),
The charging reducer pipe (411) is connected to and in communication with the mixing valve (413) by three-way piece (412), the shut-off valve (423) with
The valve chamber (415) is connected to and in communication with；Third temperature control cavity (33) setting is in the mixing valve (413) and even gun barrel (414)
It is external；
The conveying mechanism (5) includes two cold burden delivery pipes (51) and two hot material delivery pipes (52)；Two cold burdens are defeated
It send in pipe (51), cold burden delivery pipe (51) both ends are separately connected pure combined polyether filter (21) and the first temperature control cavity
(31) hot material feed inlet (36), another cold burden delivery pipe (51) both ends be separately connected pure isocyanates filter (22) with
The hot material feed inlet (36) of second temperature control cavity (32), the cold burden delivery pipe (51) and the pure combined polyether, isocyanates
The junction of filter (21,22) is equipped with metering pump (511)；In two hot material delivery pipes (52), a hot material delivery pipe
(52) both ends are separately connected hot material discharge port (37) and charging reducer pipe (411) of first temperature control cavity (31), another heat
Material conveying tube (52) both ends are separately connected hot material discharge port (37) and charging reducer pipe (411) of second temperature control cavity (32),
The hot material delivery pipe (52) and charging reducer pipe (411) junction are equipped with ball-and-seat (521).
3. direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system according to claim 2, it is characterized in that: described
One, two, three temperature control cavities (31,32,33) are equipped with thermometer (39), and the heat-exchange tube (34) is a spiralling coil pipe,
The heating rod (35) is connected with temperature controller (351) by power supply line.
4. direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system according to claim 2, it is characterized in that: the thin material
It stirs evenly component (13) to include decelerating motor (131), transmission shaft (132) and stir evenly blade (133), wherein the decelerating motor
(131) abhiseca in first and second storage tank (11,12) is set, the output shaft of decelerating motor (131) protrude into tank with it is described
Transmission shaft (132) is connected and fixed, and described blade (133) the file symmetrical expression that stirs evenly is laid on the transmission shaft (132).
5. direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system according to claim 2, it is characterized in that: the condensation
Water circulation component (38) includes refrigerant pond (381), upper hose (382), downcomer (383) and cooling tower (384), the upper hose
(382) it is equipped with circulation transfer tube (385) between downcomer (383), the cooling tower (384) setting refrigerant pond (381) and the
Between three temperature control cavities (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288356.4A CN109159347A (en) | 2018-10-31 | 2018-10-31 | A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288356.4A CN109159347A (en) | 2018-10-31 | 2018-10-31 | A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109159347A true CN109159347A (en) | 2019-01-08 |
Family
ID=64876452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288356.4A Withdrawn CN109159347A (en) | 2018-10-31 | 2018-10-31 | A kind of direct-buried thermal insulation pipe polyurethane foam insulation layer foamed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109159347A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293646A (en) * | 2019-06-10 | 2019-10-01 | 长兴正发热电耐火材料有限公司 | A kind of production technology of lightweight heat-proof joint sealing material |
| CN111644116A (en) * | 2020-04-30 | 2020-09-11 | 兰州兰石中科纳米科技有限公司 | Batching device |
| CN112257210A (en) * | 2020-11-02 | 2021-01-22 | 西南石油大学 | Single-defect reducer pipe limit internal pressure calculation method |
-
2018
- 2018-10-31 CN CN201811288356.4A patent/CN109159347A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293646A (en) * | 2019-06-10 | 2019-10-01 | 长兴正发热电耐火材料有限公司 | A kind of production technology of lightweight heat-proof joint sealing material |
| CN111644116A (en) * | 2020-04-30 | 2020-09-11 | 兰州兰石中科纳米科技有限公司 | Batching device |
| CN112257210A (en) * | 2020-11-02 | 2021-01-22 | 西南石油大学 | Single-defect reducer pipe limit internal pressure calculation method |
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Application publication date: 20190108 |