CN209111496U - A kind of efficient diameter-setting equipment of novel tubing - Google Patents
A kind of efficient diameter-setting equipment of novel tubing Download PDFInfo
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- CN209111496U CN209111496U CN201821887121.2U CN201821887121U CN209111496U CN 209111496 U CN209111496 U CN 209111496U CN 201821887121 U CN201821887121 U CN 201821887121U CN 209111496 U CN209111496 U CN 209111496U
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Abstract
The utility model discloses a kind of novel efficient diameter-setting equipments of tubing, including ring is pre-chilled, calibration sleeve, water jacket, copper pipe, support rod, first flange and second flange, ring is pre-chilled and is equipped with waterflood path, waterflood path is connected to the centre bore of pre-cooling ring, calibration sleeve is in a ring, the cooling chamber of annular is equipped in calibration sleeve, one end of copper pipe is threadedly coupled with calibration sleeve, water jacket is cylindrical, permeable hole is uniformly provided in jacket sidewall, calibration sleeve and the Single port of first flange are interference fitted, one end of water jacket is threadedly coupled with the other end of first flange, the other end of water jacket and the Single port of second flange are interference fitted, copper pipe passes through water jacket and second flange, and copper pipe and second flange are interference fitted, calibration sleeve is located at the side of pre-cooling ring, and pre-cooling ring is connected with second flange by more support rods.The apparatus structure is simple, easy to operate, can substitute the use of Vacuum shaping equipment, realizes that the whole process of tubing is cooling, cooling velocity is fast, energy-saving.
Description
Technical field
The utility model belongs to tubing production equipment technology, and in particular to a kind of efficient sizing dress of novel tubing
It sets.
Background technique
Extrusion molding refers to material by the effect between extruder barrel and screw rod, while by thermoplastification, while forward by screw rod
Push continues through head and a kind of processing methods of various cross section articles or semi-products is made.Extrusion molding is applied to thermoplastic
Property plastics and rubber processing, ingredient, granulation, sizing material filtering etc. can be carried out, can be continuously produced, manufacture various continuous products such as
Tubing, profile, plate (or sheet material), film, wire and cable cladding, rubber tire tread item, inner-tube cylinder, sealing strip etc.,
High production efficiency.Raw material enters barrel from hopper, under the action of screw rotation, passes through material tube inner wall and screw surface fricting shearing
Effect is fed forward to feeding section, is fed forward while being compacted in this bulk solids；In compression section, spiral groove depth shoals, into
The compacting of one step, while being acted in barrel external heat and screw rod and material tube inner wall fricting shearing, material temperature raising starts to melt, compression section
Terminate；Homogenizing zone keeps material uniform, fixed temperature, quantitative, level pressure melt extrusion, to mouth mold after form, obtain product through cooling and shaping.
But mould tubing extrusion manufacturing process in, between extruder and subsequent cooling system there are one section of sky every, by
This section of sky of tubing that extruder squeezes out timely is cooled down every being unable to get, and is easy to appear phenomenon of rupture, is caused tubing defect, finished product
Rate reduces.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the utility model provides a kind of novel efficient sizing of tubing
Device, the apparatus structure is simple, easy to operate, can substitute the use of Vacuum shaping equipment, realizes that the whole process of tubing is cooling, cooling
Speed is fast, energy-saving.
Realize technical solution used by the utility model above-mentioned purpose are as follows:
A kind of efficient diameter-setting equipment of novel tubing, including pre-cooling ring, calibration sleeve, water jacket, copper pipe, support rod, the first method
Blue and second flange, pre-cooling ring are equipped with the waterflood path of water filling port and annular, and water filling port is connected to waterflood path, waterflood path
Side be connected to the centre bore of pre-cooling ring, and calibration sleeve in a ring, is equipped with the cooling chamber of annular in calibration sleeve, calibration sleeve equipped with into
The mouth of a river and water outlet, inlet and outlet are connected to cooling chamber respectively, and calibration sleeve inner wall is equipped with internal screw thread, one end of copper pipe
It being threadedly coupled with calibration sleeve, water jacket is cylindrical, and the centre bore of water jacket is water storage cavity, it is uniformly provided with permeable hole in jacket sidewall,
The Single port of water jacket is equipped with internal screw thread, the Single port interference fit of calibration sleeve and first flange, one end of water jacket and first flange
The other end be threadedly coupled, the Single port of the other end of water jacket and second flange is interference fitted, and copper pipe passes through first flange, water jacket
And second flange, and copper pipe and second flange are interference fitted, calibration sleeve is located at the side of pre-cooling ring, and ring, calibration sleeve, copper is pre-chilled
Pipe, water jacket, first flange are identical with the axis of second flange, and ring is pre-chilled and is connected with second flange by more support rods, more
Root support rod is uniformly distributed, and each support rod is each passed through pre-cooling ring and second flange, and each support rod is flexibly connected with pre-cooling ring,
Each support rod is fixedly connected with second flange.
The pre-cooling ring includes pre-cooling inner ring and pre-cooling outer ring, and the section of pre-cooling outer ring axial direction is in " convex " shape, pre-cooling
The lesser part of outer annular diameter is equipped with external screw thread, and it is in bowl-shape first through hole that pre-cooling outer ring, which has, and first through hole is by rounded
The second through-hole and third through-hole in a circular table shape constitute, the diameter of third through-hole large port less than the second through-hole diameter, the
The large port of one through-hole is connected to the pre-cooling lesser end face of outer annular diameter, and the portlet and pre-cooling outer annular diameter of first through hole are larger
End face connection, pre-cooling outer ring in be equipped with annular the first groove, the cross section of the first groove is in a rectangular trapezoid, the first groove tool
There are the first lateral wall, the first inner sidewall, the first groove top and the first slot bottom, the first lateral wall is rounded, and the first inner sidewall is in rotary table
Shape, the part and the connection of the second through-hole, the first inner sidewall, the first groove top that the first groove top is connect with the first inner sidewall are logical with third
Hole isolation forms a first annular protrusion, inner ring is pre-chilled between the lesser part of pre-cooling outer annular diameter and first through hole
In bowl-shape, pre-cooling inner ring includes rounded the first noumenon, the second ontology and fourth hole in a circular table shape in axial section, the
The minimum diameter of one ontology is greater than the diameter of the second ontology large end face, the axis phase of the first noumenon, the second ontology and fourth hole
Together, the first noumenon offers the second groove with the first male cooperation close to edge, and the cross section of the second groove is square, the
The lateral wall of two grooves is equipped with internal screw thread, and the first noumenon is equipped with the second protrusion of annular, and the cross section of the second protrusion is in straight
Angle is trapezoidal, and the second protrusion has the second lateral wall, the second inner sidewall, the second top surface and the second bottom surface, and the second lateral wall is rounded,
Second inner sidewall is in a circular table shape, the inner sidewall of the second lateral wall and the second groove on the same cylindrical surface, the second lateral wall with
The inner sidewall of second groove connects, and the second bottom surface is connect with the first noumenon, the opening and the small end face of the second ontology of the second groove
Towards identical, in pre-cooling inner ring insertion pre-cooling outer ring, in first protrusion the second groove of insertion, the first protrusion and the second groove spiral shell
Line connection, the second protrusion are inserted into the first groove, and the second top surface is not contacted with the first slot bottom, and the second ontology is inserted into first through hole
In, the second ontology is not contacted with first through hole, the portlet of the portlet of the second ontology and first through hole in the same plane,
Pre-cooling outer ring and the gap being pre-chilled between inner ring form waterflood path.
The fourth hole is in bowl-shape, and the diameter of fourth hole is along pre-cooling inner ring large end face to inner ring small end face is pre-chilled
Direction be sequentially reduced.
It is pre-chilled on the end face of outer annular diameter major part and is along the circumferential direction uniformly provided with 4 perforation, outer annular diameter is pre-chilled
4 threaded locating holes are uniformly provided on the side wall of major part, 4 threaded locating holes are connected to 4 perforation respectively, wherein two
The axis of opposite perforation and the axis of two threaded locating holes communicated therewith are in the same plane.
Inlet and outlet respectively there are two, one of inlet and outlet are located at one of diameter of calibration sleeve
Upwards, another inlet and outlet be located at calibration sleeve another radially, the distance between adjacent water inlet be less than phase
The distance between adjacent inlet and outlet.
Multipairs of circular arcs through-hole is symmetrically offered on the copper pipe, and multipairs of circular arcs through-hole is interspersed.
There are two the water filling ports, and two water filling ports are symmetrically disposed on the side wall of pre-cooling outer annular diameter major part.
Compared with prior art, the beneficial effects of the utility model and advantage are:
1, the device is directly connected to can achieve tubing using pre-cooling ring and extruder and goes out extruder to being cooled to finished product
It is unremitting whole cooling, avoid the empty phenomenon of rupture that every place occurs of the tubing between extruder and cooling system.
2, the device can substitute original Vacuum shaping equipment and use, using internal pressure sizing method, compared with the vacuum of original process
The cooling velocity of sizing method, tubing is fast, and out-of-roundness coefficient is high, and power-on operation difficulty reduces, convenient and practical, and eliminates vacuum
After modular system, the use of vacuum pump is also eliminated simultaneously, and energy conservation and consumption reduction effects are significant.
3, the multipair circular arc through-hole being interspersed is set on the copper pipe of the device, and cooling effect is significant, is adapted to faster
Hauling speed tubing, improve production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the novel efficient diameter-setting equipment of tubing.
Fig. 2 is the figure that outer ring is pre-chilled.
Fig. 3 is the cross-sectional view of Fig. 2 axial direction.
Fig. 4 is the structural schematic diagram that inner ring is pre-chilled.
Fig. 5 is the cross-sectional view of Fig. 4 axial direction.
Fig. 6 is the structural schematic diagram of calibration sleeve.
Fig. 7 is the structural schematic diagram of water jacket.
Wherein, inner ring is pre-chilled in 1-, outer ring, 3- calibration sleeve, 4- water jacket, 5- copper pipe, 6- support rod, the first method of 7- is pre-chilled in 2-
Orchid, 8- second flange, 9- waterflood path, 10- water filling port, 11- water inlet, 12- water outlet, 13- permeable hole, 14- first through hole,
The second through-hole of 15-, 16- third through-hole, the first groove of 17-, the first lateral wall of 18-, the first inner sidewall of 19-, the first groove top of 20-,
The first slot bottom of 21-, the first protrusion of 22-, 23- the first noumenon, the second ontology of 24-, 25- fourth hole, the second groove of 26-, 27-
Two protrusions, the second lateral wall of 28-, 29- perforation, 30- threaded locating hole, 31- circular arc through-hole, the second inner sidewall of 32-, 33- second
Top surface, the second bottom surface 34-.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
The structural schematic diagram of the efficient diameter-setting equipment of novel tubing provided by the utility model is as shown in Figure 1, include pre-cooling
Ring, calibration sleeve 3, water jacket 4, copper pipe 5, support rod 6, first flange 7 and second flange 8.
The pre-cooling ring includes pre-cooling inner ring 1 and pre-cooling outer ring 2.
The axial section of pre-cooling outer ring 2 is in " convex " shape, and the pre-cooling lesser part of 2 diameter of outer ring is equipped with outer spiral shell
Line.Outer ring 2 is pre-chilled having is in bowl-shape first through hole 14, and first through hole 14 is by rounded the second through-hole 15 and in a circular table shape
Third through-hole 16 is constituted, the diameter of the diameter of 16 large port of third through-hole less than the second through-hole 15.The large port of first through hole 14
It is connected to the pre-cooling lesser end face of 2 diameter of outer ring, the end face that the portlet and pre-cooling outer ring 2 of first through hole 14 are relatively large in diameter connects
It is logical.
The first groove 17 that annular is equipped in outer ring 2 is pre-chilled, the cross section of the first groove 17 is in a rectangular trapezoid, the first groove
With the first lateral wall 18, the first inner sidewall 19, the first groove top 20 and the first slot bottom 21.First lateral wall 18 is rounded, and first
Inner sidewall 19 is in a circular table shape, the part and the connection of the second through-hole 15 that the first groove top 20 is connect with the first inner sidewall 19, the first inside
Wall 18, the first groove top 20 completely cut off with third through-hole 16.It is formed between the lesser part of pre-cooling 2 diameter of outer ring and first through hole 14
One the first annular protrusion 22.
It is pre-chilled on the end face of 2 larger diameter portion of outer ring and is along the circumferential direction uniformly provided with 4 perforation 29, outer ring 2 is pre-chilled
4 threaded locating holes are uniformly provided on the side wall of larger diameter portion, 4 threaded locating holes 30 connect with 4 perforation 29 respectively
It is logical, wherein the axis of two opposite perforation 29 and the axis of two threaded locating holes 30 communicated therewith are in the same plane.
It is pre-chilled on the side wall of 2 larger diameter portion of outer ring and symmetrically offers two water filling ports 10.
For the axial section of the pre-cooling inner ring 1 in bowl-shape, pre-cooling inner ring 1 includes rounded the first noumenon 23, in circle
The second ontology 24 and fourth hole 25 of mesa-shaped.The minimum diameter of the first noumenon 23 is greater than the diameter of 24 large end face of the second ontology,
The first noumenon 23, the second ontology 24 are identical with the axis of fourth hole 25.Fourth hole 25 is in bowl-shape, the diameter of fourth hole 25
It is sequentially reduced along the direction of pre-cooling 1 large end face of inner ring to pre-cooling 1 small end face of inner ring.
The first noumenon 23 offers the second groove 26 with 22 cooperation of the first protrusion, the cross of the second groove 26 close to edge
Section is square, and the lateral wall of the second groove 26 is equipped with internal screw thread.The first noumenon 23 is equipped with the second protrusion 27 of annular, the
The cross section of two protrusions 27 is in a rectangular trapezoid, and the second protrusion has the second lateral wall 28, the second inner sidewall 32,33 and of the second top surface
Second bottom surface 34, the second lateral wall 28 is rounded, and the second inner sidewall 32 is in a circular table shape.Second lateral wall 28 and the second groove 26
On the same cylindrical surface, the second lateral wall 28 is connect inner sidewall with the inner sidewall of the second groove 26, the second bottom surface 34 and first
Ontology 23 connects.The opening of second groove 26 and the small end face of the second ontology 24 are towards identical.
It is pre-chilled in the insertion pre-cooling outer ring 2 of inner ring 1, the first protrusion 22 is inserted into the second groove 26, the first protrusion 22 and second
Recessed 26 slot is threadedly coupled.Second protrusion 27 is inserted into the first groove 17, and the second top surface 33 is not contacted with the first slot bottom 21.Second
Body 24 is inserted into first through hole 14, and the second ontology 24 is not contacted with first through hole 14, and the portlet of the second ontology 24 and first is led to
The portlet in hole 14 is in the same plane.1 gap forms waterflood path 9, two notes between pre-cooling outer ring 2 and pre-cooling inner ring
The mouth of a river 10 is connected to waterflood path 9 respectively.
Calibration sleeve 3 is equipped with two water inlets 11 and two water outlets 12, and it is fixed that one of water inlet 11 and water outlet 12 are located at
One of them of diameter set 3 radially, another water inlet 11 and water outlet 12 be located at calibration sleeve 3 another radially, it is adjacent
The distance between water inlet 11 is less than the distance between adjacent water inlet 11 and water outlet 12.The cold of annular is equipped in calibration sleeve 3
But chamber, two water inlets 11 and two water outlets 12 are connected to cooling chamber.
Water jacket 4 is cylindrical, and the centre bore of water jacket 4 is water storage cavity, is uniformly provided with permeable hole 13 on 4 side wall of water jacket.Water jacket 4
Single port be equipped with internal screw thread, the Single port of the one end of calibration sleeve 3 and first flange 7 is interference fitted, one end of water jacket 4 and the
The other end of one flange 7 is threadedly coupled, and the other end of water jacket 4 and the Single port of second flange 8 are interference fitted.
Multipairs of circular arcs through-hole 31 is symmetrically offered on copper pipe 5, and multipairs of circular arcs through-hole 31 is interspersed.3 inner wall of calibration sleeve
It is equipped with internal screw thread, one end of copper pipe 5 is threadedly coupled with calibration sleeve 3.Copper pipe 5 is in the centre bore, water jacket 4 of first flange 7
The centre bore of centre and second flange 8, and copper pipe 5 and second flange 8 are interference fitted.
Calibration sleeve 3 is located at the side of pre-cooling ring, pre-cooling ring, calibration sleeve 3, copper pipe 5, water jacket 4, first flange 7 and the second method
The axis of orchid 8 is identical.Support rod 6 has four, and four support rods 6 are square distribution, and one end of four support rods 6 is respectively with second
Flange 8 is fixedly connected, and the other end, which passes through, is each passed through four perforation 29, and four support rods 6 are fixed on by fastening bolt respectively
In four perforation 29.When need adjust pre-cooling the distance between ring and second flange when, four fastening bolts are unscrewed, adjust to
Suitably apart from when, then four fastening bolts are tightened.
After tubing is come out by plug mouth mold, when by fourth hole 25, through two water filling ports 10 into waterflood path 9
Water filling, tubing are tentatively cooled down in pre-cooling ring, and then tubing is entered among copper pipe 5 by calibration sleeve 3, and tubing is by fixed
Cooled chamber strengthens cooling when diameter set 3, and then tubing continues to cool down among copper pipe 5, in the process determines that tubing is final
Outer diameter.
Claims (7)
1. a kind of novel efficient diameter-setting equipment of tubing, it is characterised in that: including ring, calibration sleeve, water jacket, copper pipe, support is pre-chilled
Bar, first flange and second flange, pre-cooling ring are equipped with the waterflood path of water filling port and annular, and water filling port and waterflood path connect
Logical, waterflood path side is connected to the centre bore of pre-cooling ring, and calibration sleeve in a ring, is equipped with the cooling chamber of annular in calibration sleeve, fixed
Diameter is put on equipped with inlet and outlet, and inlet and outlet are connected to cooling chamber respectively, and calibration sleeve inner wall is equipped with interior spiral shell
One end of line, copper pipe is threadedly coupled with calibration sleeve, and water jacket is cylindrical, and the centre bore of water jacket is water storage cavity, in jacket sidewall
Even to be equipped with permeable hole, the Single port of water jacket is equipped with internal screw thread, and the Single port of calibration sleeve and first flange is interference fitted, and the one of water jacket
End is threadedly coupled with the other end of first flange, and the other end of water jacket and the Single port of second flange are interference fitted, and copper pipe passes through
First flange, water jacket and second flange are sequentially passed through, and copper pipe and second flange are interference fitted, calibration sleeve is located at the one of pre-cooling ring
Side, pre-cooling ring, calibration sleeve, water jacket, copper pipe, first flange are identical with the axis of second flange, and pre-cooling ring and second flange are logical
Excessive root support rod connection, more support rods are uniformly distributed, and each support rod is each passed through pre-cooling ring and second flange, and each support
Bar is flexibly connected with pre-cooling ring, and each support rod is fixedly connected with second flange.
2. the efficient diameter-setting equipment of novel tubing according to claim 1, it is characterised in that: the pre-cooling ring includes pre-
Cold inner ring and pre-cooling outer ring, the section of pre-cooling outer ring axial direction are in " convex " shape, and the pre-cooling lesser part of outer annular diameter is equipped with outer
Screw thread, it is in bowl-shape first through hole that pre-cooling outer ring, which has, and first through hole is by the second rounded through-hole and third in a circular table shape
Through-hole is constituted, the diameter of third through-hole large port less than the second through-hole diameter, the large port of first through hole with that outer ring is pre-chilled is straight
The lesser end face connection of diameter, the portlet of first through hole are connected to the pre-cooling biggish end face of outer annular diameter, are pre-chilled in outer ring and are equipped with
Annular the first groove, the cross section of the first groove is in a rectangular trapezoid, the first groove have the first lateral wall, the first inner sidewall,
First groove top and the first slot bottom, the first lateral wall is rounded, and the first inner sidewall is in a circular table shape, and the first groove top and the first inner sidewall connect
The part connect is connected to the second through-hole, and the first inner sidewall, the first groove top completely cut off with third through-hole, and pre-cooling outer annular diameter is lesser
A first annular protrusion is formd between part and first through hole, the section of pre-cooling inner ring axial direction is in bowl-shape, pre-cooling inner ring
Including rounded the first noumenon, the second ontology and fourth hole in a circular table shape, the minimum diameter of the first noumenon is greater than second
The diameter of ontology large end face, the first noumenon, the second ontology are identical with the axis of fourth hole, and the first noumenon is opened up close to edge
There is the second groove with the first male cooperation, the cross section of the second groove is square, and the lateral wall of the second groove is equipped with interior spiral shell
Line, the first noumenon are equipped with the second protrusion of annular, and the cross section of the second protrusion is in a rectangular trapezoid, and the second protrusion has outside second
Side wall, the second inner sidewall, the second top surface and the second bottom surface, the second lateral wall is rounded, and the second inner sidewall is in a circular table shape, outside second
On the same cylindrical surface, the second lateral wall is connect the inner sidewall of side wall and the second groove with the inner sidewall of the second groove, and second
Bottom surface is connect with the first noumenon, and the opening of the second groove and the small end face of the second ontology are towards identical, and the insertion of pre-cooling inner ring is in advance
In cold outer ring, in first protrusion the second groove of insertion, the first protrusion is threadedly coupled with the second groove, and the second protrusion insertion first is recessed
In slot, the second top surface is not contacted with the first slot bottom, and the second ontology is inserted into first through hole, and the second ontology does not connect with first through hole
The portlet of touching, the portlet of the second ontology and first through hole in the same plane, is pre-chilled between outer ring and pre-cooling inner ring
Gap forms waterflood path.
3. the efficient diameter-setting equipment of novel tubing according to claim 2, it is characterised in that: the fourth hole is in bowl
The diameter of shape, fourth hole is sequentially reduced along the direction of pre-cooling inner ring large end face to pre-cooling inner ring small end face.
4. the efficient diameter-setting equipment of novel tubing according to claim 2, it is characterised in that: the pre-cooling larger portion of outer annular diameter
It is along the circumferential direction uniformly provided with 4 perforation on the end face divided, is pre-chilled on the side wall of outer annular diameter major part and is uniformly provided with 4
A threaded locating hole, 4 threaded locating holes are connected to 4 perforation respectively, wherein the axis of two opposite perforation and communicating therewith
Two threaded locating holes axis in the same plane, support rod has four, and four support rods are each passed through four perforation, four
Root support rod passes through fastening bolt respectively and is fixed in four perforation.
5. the efficient diameter-setting equipment of novel tubing according to claim 2, it is characterised in that: inlet and outlet difference
There are two, one of inlet and outlet be located at calibration sleeve one of them radially, another inlet and outlet
Positioned at calibration sleeve another radially, the distance between adjacent water inlet be less than adjacent inlet and outlet between away from
From.
6. the efficient diameter-setting equipment of novel tubing according to claim 2, it is characterised in that: symmetrically opened on the copper pipe
Equipped with multipairs of circular arcs through-hole, and multipairs of circular arcs through-hole is interspersed.
7. the efficient diameter-setting equipment of novel tubing according to claim 2, it is characterised in that: the water filling port has two
A, two water filling ports are symmetrically disposed on the side wall of pre-cooling outer annular diameter major part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887121.2U CN209111496U (en) | 2018-11-16 | 2018-11-16 | A kind of efficient diameter-setting equipment of novel tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887121.2U CN209111496U (en) | 2018-11-16 | 2018-11-16 | A kind of efficient diameter-setting equipment of novel tubing |
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| Publication Number | Publication Date |
|---|---|
| CN209111496U true CN209111496U (en) | 2019-07-16 |
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ID=67205429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821887121.2U Active CN209111496U (en) | 2018-11-16 | 2018-11-16 | A kind of efficient diameter-setting equipment of novel tubing |
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| CN (1) | CN209111496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379058A (en) * | 2022-03-08 | 2022-04-22 | 公元股份有限公司 | A high-efficient cooling device for pipeline production |
| CN115214108A (en) * | 2022-05-15 | 2022-10-21 | 临海伟星新型建材有限公司 | Water-ring type precooling device for removing oil fume |
-
2018
- 2018-11-16 CN CN201821887121.2U patent/CN209111496U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379058A (en) * | 2022-03-08 | 2022-04-22 | 公元股份有限公司 | A high-efficient cooling device for pipeline production |
| CN115214108A (en) * | 2022-05-15 | 2022-10-21 | 临海伟星新型建材有限公司 | Water-ring type precooling device for removing oil fume |
| CN115214108B (en) * | 2022-05-15 | 2024-02-13 | 临海伟星新型建材有限公司 | Smoke-removing water ring type precooling device |
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