CN208033219U - Lance head and tube cleaning arrangement - Google Patents
Lance head and tube cleaning arrangement Download PDFInfo
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- CN208033219U CN208033219U CN201820001344.8U CN201820001344U CN208033219U CN 208033219 U CN208033219 U CN 208033219U CN 201820001344 U CN201820001344 U CN 201820001344U CN 208033219 U CN208033219 U CN 208033219U
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- lance tube
- cleaned
- pipeline
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Abstract
The utility model provides a kind of lance head and tube cleaning arrangement, is related to cleaning equipment technical field.The lance head includes lance tube and conical plug, and the conical top of conical plug is inserted into the nozzle of lance tube outlet end, and plug is detachable is fixedly arranged on lance tube for cone；Conical plug and lance tube coaxial line, there are gaps between the busbar face and the internal wall of pipe orifice of lance tube outlet end of conical plug；The tube cleaning arrangement includes high pressure cleaning pump and above-mentioned lance head, and the liquid outlet of high pressure cleaning pump is connected to the liquid feeding end of lance tube.The setting of conical plug is so that cleaning solution is sprayed in the outlet end of lance tube in flaring is cyclic annular, the circumferential direction of pipeline to be cleaned can be cleaned simultaneously, it cleans the uniformity and cleanliness factor is preferable, and operator only need to be along the axial movement lance tube of pipeline to be cleaned, simple operation is preferable.
Description
Technical field
The utility model is related to cleaning equipment technical field more particularly to a kind of lance heads and tube cleaning arrangement.
Background technology
Pipeline is for conveying gas, liquid or the transfer unit of fluid with solid particle, in people's lives and work
Using all very extensive in industry production.It is more demanding to the cleannes of inner tube in some pipe conveying procedures, such as conveying drink
When with water or other substances higher to purity requirement, it is to be ensured that the cleannes of inner wall of the pipe.
The flow that the lance head of the existing cleaning device for pipeline cleaning generally sprays is linear type or fan-shaped flow,
The lance head of cleaning device stretches into pipeline when being cleaned to pipeline, needs constantly to rotate lance head, makes flow to pipeline
The all angles of inner wall are cleaned, and while the circumferential direction of inner wall of the pipe each position is cleaned in lance head rotation, are also needed
It constantly to be moved along the axial direction of pipeline, to complete the cleaning to inner wall of the pipe；Since rotation of the head inside pipeline is robbed in spray
Speed and movement speed control difficulty are larger, cause lance head poor to the cleaning uniformity of inner wall of the pipe, cleannes are poor.
That is, when the lance head of existing cleaning device cleans inner wall of the pipe, operation difficulty is big, and cleans uniformity and clean
Cleanliness is poor.
Utility model content
The purpose of this utility model is to provide a kind of lance head and tube cleaning arrangements, to solve to exist in the prior art
Lance head when being cleaned to inner wall of the pipe, operation difficulty is big, and cleans uniformity and the poor technical problem of cleanliness factor.
Lance head provided by the utility model, including lance tube and conical plug, the taper top of the cone plug
Portion is inserted into the nozzle of the lance tube outlet end, and plug is detachable is fixedly arranged on the lance tube for the cone；
The busbar face of the cone plug and the lance tube coaxial line, the cone plug goes out with the lance tube
There are gaps between the internal wall of pipe orifice at liquid end.
Further, the lance tube is equipped with the first threaded hole, and the cone plug is equipped with the second threaded hole, institute
It is corresponding with second threaded hole to state the first threaded hole, is equipped in first threaded hole and second threaded hole same
Threaded fastener, the lance tube and the conical plug are detachable affixed by the threaded fastener.
Another of the utility model is designed to provide a kind of tube cleaning arrangement, including high pressure cleaning pump and above-mentioned spray
Pipette tips, the liquid outlet of the high pressure cleaning pump are connected to the liquid feeding end of the lance head, which has above-mentioned spray
All technique effects of pipette tips.
Further, movable sleeve is equipped with support element, when the lance tube is stretched into pipeline to be cleaned, institute on the lance tube
Supports support is stated between the pipeline to be cleaned and the lance tube.
Further, the support element includes support ring, and the support ring is internally provided with through-hole, and the lance tube passes through institute
Through-hole is stated, the outside diameter of the support ring is less than the internal diameter of the pipeline to be cleaned.
Further, the support ring is multiple, and multiple support rings are distributed along the axial dispersion of the lance tube.
Further, it is communicated with connecting tube between the liquid outlet of the high pressure cleaning pump and the liquid feeding end of the lance tube.
Further, the lance tube is linked together with the connecting tube by pipe sleeve, the liquid feeding end of the lance tube
Pipe outer wall is equipped with the first external screw thread, and the outlet end pipe outer wall of the connecting tube is equipped with the second external screw thread, the pipe sleeve both ends
Inner wall be respectively equipped with the first internal thread and the second internal thread, first internal thread is engaged with the first external screw thread screw thread,
Second internal thread is engaged with the second external screw thread screw thread.
Further, to be communicated with high pressure between the liquid feeding end of the connecting tube and the liquid outlet of the high pressure cleaning pump soft
Pipe.
Further, control switch is equipped between the high-pressure hose and the connecting tube.
The utility model lance head and tube cleaning arrangement have the beneficial effect that：
Lance head and tube cleaning arrangement provided by the utility model, wherein lance head includes for conveying cleaning solution
Lance tube and outlet end for lance tube block, and it is in the conical plug of horn-like ejection to make spray gun liquid in pipe,
The conical top of conical plug is inserted into lance tube, and there are gaps between the busbar face of conical plug and lance tube, between being somebody's turn to do
Gap is used to spray for the cleaning solution in lance tube；Wherein, tube cleaning arrangement include for by exterior washings liquid high-pressure delivery such as
High pressure cleaning pump in lance tube.
When pipeline needs cleaning, the liquid feeding end of high pressure cleaning pump is placed in cleaning solution, lance tube is stretched into be cleaned
In pipeline, high pressure cleaning pump is opened, cleaning solution is flowed by high pressure cleaning pump in lance tube under the pressure of high pressure cleaning pump, so
The outlet end of lance tube is flowed to afterwards, and cleaning solution encounters the conical top of conical plug, conical top and spray gun in lance tube
Clearance distance between pipe is gradually reduced, process of the wash liquid stream to lance tube outlet end with the outlet end close to lance tube
Middle circulation area tapers into, and hydraulic pressure gradually increases, finally between the busbar face of conical plug and spray gun inside pipe wall
Gap sprays；The busbar face of conical plug is tapered, conical plug and lance tube coaxial line, same section cone plug with
Annular gap is formed between lance tube, cleaning solution is sprayed with the outlet end that the circular conical surface of conical plug reaches lance tube, spray
Outgoing direction is conllinear with the conical busbar of plug, and cricoid liquid flow is flared to be formed in the outlet end of lance tube, ejection
Diameter becomes larger after liquid flow leaves lance tube, is cleaned to inner wall until being ejected on the inner wall of pipeline to be cleaned, clearly
Washing lotion is annularly sprayed in lance tube outlet end, can be cleaned simultaneously to the circumferential direction of pipeline to be cleaned inner wall, and operator is only
It need to be along the axial movement lance tube of pipeline to be cleaned.
The setting of conical plug makes cleaning solution be sprayed in the outlet end of lance tube in flaring is cyclic annular, can treat simultaneously
The circumferential direction of Cleaning pipes is cleaned, and cleans the uniformity and cleanliness factor is preferable, and operator only need to be along the axial direction of pipeline to be cleaned
Mobile lance tube, simple operation are preferable.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the dimensional structure diagram for the tube cleaning arrangement that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram that conical plug is connected with lance tube in Fig. 1；
Fig. 3 is the main structure diagram of lance tube in Fig. 1；
Fig. 4 is the overlooking structure diagram of lance tube in Fig. 1；
Fig. 5 is the main structure diagram of conical plug in Fig. 1；
The overlooking structure diagram of conical plug in Fig. 6 bitmaps 1.
Icon：1- lance tubes；2- cone plugs；3- high pressure cleaning pumps；4- support rings；5- connecting tubes；6- is managed
Set；7- high-pressure hoses；8- control switches；9- pipeline to be cleaned；The first threaded holes of 11-；12- threaded fasteners；13-
One external screw thread；21- busbares face；The second threaded holes of 22-.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
The present embodiment provides a kind of lance heads, as shown in Fig. 2, including lance tube 1 and conical plug 2, conical plug 2
Conical top be inserted into the nozzle of 1 outlet end of lance tube, and plug 2 is detachable is fixedly arranged on lance tube 1 for cone；Circular cone
Shape plug 2 and 1 coaxial line of lance tube, between the internal wall of pipe orifice of 1 outlet end of busbar face 21 and lance tube of conical plug 2 there are
Gap.
The present embodiment also provides a kind of tube cleaning arrangement, as shown in Figure 1, including high pressure cleaning pump 3 and above-mentioned lance head,
The liquid outlet of high pressure cleaning pump 3 is connected to the liquid feeding end of lance head.
Lance head and tube cleaning arrangement provided in this embodiment, wherein lance head includes the spray for conveying cleaning solution
Gun barrel 1 and outlet end for lance tube 1 block, and it is in the conical plug of horn-like ejection to make liquid in lance tube 1
2, the conical top of conical plug 2 is inserted into lance tube 1, between the busbar face 21 and lance tube 1 of conical plug 2 there are
Gap, the gap are used to spray for the cleaning solution in lance tube 1；Wherein, tube cleaning arrangement includes for exterior washings liquid is high
Pressure conveying such as the high pressure cleaning pump 3 in lance tube 1.
When pipeline needs cleaning, the liquid feeding end of high pressure cleaning pump 3 is placed in cleaning solution, lance tube 1 is stretched into and is waited for clearly
It washes in pipeline 9, opens high pressure cleaning pump 3, cleaning solution flows into spray gun under the pressure of high pressure cleaning pump 3 by high pressure cleaning pump 3
In pipe 1, the outlet end of lance tube 1 is then flowed to, cleaning solution encounters the conical top of conical plug 2, taper in lance tube 1
Clearance distance between top and lance tube 1 is gradually reduced with the outlet end close to lance tube 1, and wash liquid stream is to lance tube
Circulation area tapers into during 1 outlet end, and hydraulic pressure gradually increases, finally from the busbar face 21 of conical plug 2 and spray
Gap between 1 inner wall of gun barrel sprays；The busbar face 21 of conical plug 2 is tapered, and conical plug 2 is coaxial with lance tube 1
Line, forms annular gap between same section cone plug 2 and lance tube 1, cleaning solution with conical plug 2 circular conical surface
The outlet end for reaching lance tube 1 sprays, and emission direction is conllinear with the busbar of conical plug 2, in the outlet end of lance tube 1
Form the liquid flow of flaring cyclic annular (horn-like), diameter becomes larger after the liquid flow of ejection leaves lance tube 1, until being ejected into
Inner wall is cleaned on the inner wall of pipeline to be cleaned 9, cleaning solution is annularly sprayed in 1 outlet end of lance tube, can be right simultaneously
The circumferential direction of 9 inner wall of pipeline to be cleaned is cleaned, and operator only need to be along the axial movement lance tube 1 of pipeline to be cleaned 9.
The setting of conical plug 2, can be right simultaneously so that cleaning solution is sprayed in the outlet end of lance tube 1 in flaring is cyclic annular
The circumferential direction of pipeline to be cleaned 9 is cleaned, and cleans the uniformity and cleanliness factor is preferable, and operator only need to be along pipeline to be cleaned 9
Lance tube 1 is moved axially, simple operation is preferable.
Specifically, the lance tube 1 that can choose suitable caliber according to the caliber of pipeline to be cleaned 9 cleans it；Circle
When taper plug 2 is mounted in lance tube 1, the gap between 1 inner end diameter of busbar face 21 and lance tube of conical plug 2 can
Think 2mm.
In the present embodiment, as shown in Fig. 2-Fig. 6, the first threaded hole 11, conical plug 2 can be equipped on lance tube 1
It is equipped with the second threaded hole 22, the first threaded hole 11 and the second threaded hole 22 and corresponding, the first threaded hole 11 and the second screw thread
Same threaded fastener 12 is equipped in hole 22, lance tube 1 and conical plug 2 are detachable solid by threaded fastener 12
It connects.Here it is detachable affixed a kind of concrete form between conical plug 2 and lance tube 1, specifically, threaded fastener
12 can select bolt, and when installation, the tapered end thereof of conical plug 2 is inserted into lance tube 1, and the on conical plug 2
Two threaded holes 22 are corresponding with the first threaded hole 11 on lance tube 1, and the stud of bolt is sequentially inserted into outside lance tube 1
It is screwed in one threaded hole 11 and the second threaded hole 22, the connection of conical plug 2 and lance tube 1 is completed, to enhance cone
Relative position stability between plug 2 and lance tube 1 reduces conical plug 2 and is shifted by cleaning fluid pressure, influenced
Cleaning solution goes out the occurrence of liquid.
Specifically, in the present embodiment, as shown in Figure 4 and Figure 5, the first threaded hole 11 can be multiple, multiple first screw threads
Hole 11 is uniformly distributed along the circumferential direction of the lance tube 1, correspondingly, the second threaded hole 22 and threaded fastener 12 are also multiple；Tool
Body, the first threaded hole 11 can be three, and three threaded fasteners 12 are in three directions of lance tube 1 to conical plug 2
It is fixed, further increases the firmness of the connection between conical plug 2 and lance tube 1.
In the present embodiment, support element can be equipped with by movable sleeve on lance tube 1, lance tube 1 stretches into pipeline to be cleaned 9
When, supports support is between pipeline to be cleaned 9 and lance tube 1.When pipeline to be cleaned 9 needs cleaning, lance tube 1 is stretched into and is waited for
In Cleaning pipes 9, support element enters with lance tube 1 in pipeline to be cleaned 9, is played between pipeline to be cleaned 9 and lance tube 1
Supporting role keeps lance tube 1 and 9 coaxial line of pipeline to be cleaned or axial line distance smaller, to improve cleaning solution from 1 end of lance tube
It is identical to the pressure of the cleaning of pipeline to be cleaned 9 when portion sprays, to improve cleaning uniformity of the lance tube 1 to pipeline to be cleaned 9.
Specifically, in the present embodiment, as shown in Figure 1, support element may include support ring 4, support ring 4 is internally provided with logical
Hole, lance tube 1 pass through through-hole, the outside diameter of support ring 4 to be less than the internal diameter of pipeline to be cleaned 9.Support ring 4 is sleeved on lance tube 1
On, lance tube 1 stretches into pipeline to be cleaned 9, and 4 outer circle of support ring is abutted with the inner wall of pipeline to be cleaned 9, the inner circle of support ring 4
It is abutted with the outer wall of lance tube 1, lance tube 1 is supported on to the axial location of pipeline to be cleaned 9, operator only need to be along pipe to be cleaned
The axial movement lance tube 1 in road 9, lance tube 1 are always positioned at the axis position of pipeline to be cleaned 9 under the support of support ring 4
It sets, the inner wall of pipeline to be cleaned 9 is cleaned, to substantially reduce the labour of operator, and the essence of operation can be improved
Degree.
Specifically, selecting suitable support ring 4, support according to the outer diameter difference of the internal diameter of pipeline to be cleaned 9 with lance tube 1
The outside diameter of ring 4 can be less than 5~10mm of internal diameter of pipeline to be cleaned 9；The interior circular diameter of support ring 4 can be more than lance tube
1 outer diameter 1mm or so；Support ring 4 can select bakelite plate or PVC board to be made, and the thickness of support ring 4 can select 10~20mm.
In order to improve stability of strutting system of the support ring 4 to lance tube 1, in the present embodiment, as shown in Figure 1, support ring 4 can be with
To be multiple, multiple support rings 4 are distributed along the axial dispersion of lance tube 1.Multiple support rings 4, lance tube 1 are arranged on lance tube 1
The depth stretched into pipeline to be cleaned 9 is unrestricted, and support ring 4 can be supported lance tube 1, to improve support ring
The stability of strutting system of 4 pairs of lance tubes 1 also accordingly improves the operating comfort of operator.
In the present embodiment, as shown in Figure 1, can connect between the liquid outlet and the liquid feeding end of lance tube 1 of high pressure cleaning pump 3
It is connected with connecting tube 5.Connecting tube 5 is used to increase the length of lance tube 1, and appropriate length is selected according to the length of pipeline to be cleaned 9
Connecting tube 5 is connect with lance tube 1, so that lance tube 1 can be used in cleaning the pipeline to be cleaned 9 of each length, thus into one
Step improves the practicability of tube cleaning arrangement and degree easy to use.
Specifically, in the present embodiment, as shown in Figures 2 and 3, lance tube 1 can be connected to connecting tube 5 by pipe sleeve 6
Together, the liquid feeding end pipe outer wall of lance tube 1 is equipped with the first external screw thread 13, and the outlet end pipe outer wall of connecting tube 5 is equipped with second
The inner wall of external screw thread, 6 both ends of pipe sleeve is respectively equipped with the first internal thread and the second internal thread, the first internal thread and the first external screw thread 13
Screw thread engages, and the second internal thread is engaged with the second external screw thread screw thread.Here it is a kind of specific between connecting tube 5 and lance tube 1
Connection type when connection, first screws the second internal thread of pipe sleeve 6 and the second external screw thread screw thread of connecting tube 5, then will spray
First external screw thread 13 of gun barrel 1 is screwed with the first internal thread screw thread of pipe sleeve 6, completes the company between connecting tube 5 and lance tube 1
It connects, connection is convenient.
In the present embodiment, as shown in Figure 1, can be connected between the liquid feeding end of connecting tube 5 and the liquid outlet of high pressure cleaning pump 3
There is high-pressure hose 7.On the one hand high-pressure hose 7, can bear the high water pressure of high pressure cleaning pump 3, complete the conveying of cleaning solution；Separately
On the one hand, 7 flexibility of high-pressure hose is preferable, when the position of high pressure cleaning pump 3 is constant, is convenient for 1 different angle of lance tube and position
Adjusting, further enhance the degree and practicability easy to use of tube cleaning arrangement.
In the present embodiment, as depicted in figs. 1 and 2, control switch can also be equipped between high-pressure hose 7 and connecting tube 5
8.Control switch 8 is used to control the feed status of cleaning solution, improves simple and convenient to the control of cleaning solution in cleaning process
Degree.Specifically, control switch 8 can select through type ball valve.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify to the technical solution recorded in previous embodiment, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (10)
1. a kind of lance head, which is characterized in that including lance tube (1) and conical plug (2), the cone plug (2)
Conical top is inserted into the nozzle of lance tube (1) outlet end, and the conical plug (2) it is detachable be fixedly arranged on it is described
On lance tube (1)；
The cone plug (2) and the lance tube (1) coaxial line, the busbar face (21) of the cone plug (2) and institute
State between the internal wall of pipe orifice of lance tube (1) outlet end that there are gaps.
2. lance head according to claim 1, which is characterized in that the lance tube (1) is equipped with the first threaded hole (11),
The cone plug (2) is equipped with the second threaded hole (22), first threaded hole (11) and second threaded hole (22)
It is corresponding, it is equipped with same threaded fastener (12) in first threaded hole (11) and second threaded hole (22), it is described
Lance tube (1) and the conical plug (2) are detachable affixed by the threaded fastener (12).
3. a kind of tube cleaning arrangement, which is characterized in that including high pressure cleaning pump (3) and spray gun as claimed in claim 1 or 2
The liquid outlet of head, the high pressure cleaning pump (3) is connected to the liquid feeding end of the lance tube (1).
4. tube cleaning arrangement according to claim 3, which is characterized in that movable sleeve is equipped with branch on the lance tube (1)
Support member, the lance tube (1) stretch into pipeline to be cleaned (9) it is interior when, the supports support is in the pipeline to be cleaned (9) and institute
It states between lance tube (1).
5. tube cleaning arrangement according to claim 4, which is characterized in that the support element includes support ring (4), described
Support ring (4) is internally provided with through-hole, and the lance tube (1) passes through the through-hole, the outside diameter of the support ring (4) to be less than institute
State the internal diameter of pipeline to be cleaned (9).
6. tube cleaning arrangement according to claim 5, which is characterized in that the support ring (4) be it is multiple, it is multiple described
Support ring (4) is distributed along the axial dispersion of the lance tube (1).
7. according to the tube cleaning arrangement described in any one of claim 3-6, which is characterized in that the high pressure cleaning pump (3)
Liquid outlet and the liquid feeding end of the lance tube (1) between be communicated with connecting tube (5).
8. tube cleaning arrangement according to claim 7, which is characterized in that the lance tube (1) and the connecting tube (5)
It is linked together by pipe sleeve (6), the liquid feeding end pipe outer wall of the lance tube (1) is equipped with the first external screw thread (13), the company
The outlet end pipe outer wall for taking over (5) is equipped with the second external screw thread, and the inner wall at pipe sleeve (6) both ends is respectively equipped with the first internal thread
With the second internal thread, first internal thread is engaged with the first external screw thread (13) screw thread, second internal thread with it is described
Second external screw thread screw thread engages.
9. tube cleaning arrangement according to claim 7, which is characterized in that the liquid feeding end of the connecting tube (5) with it is described
High-pressure hose (7) is communicated between the liquid outlet of high pressure cleaning pump (3).
10. tube cleaning arrangement according to claim 9, which is characterized in that the high-pressure hose (7) and the connecting tube
(5) control switch (8) is equipped between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820001344.8U CN208033219U (en) | 2018-01-02 | 2018-01-02 | Lance head and tube cleaning arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820001344.8U CN208033219U (en) | 2018-01-02 | 2018-01-02 | Lance head and tube cleaning arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208033219U true CN208033219U (en) | 2018-11-02 |
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ID=63956093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820001344.8U Active CN208033219U (en) | 2018-01-02 | 2018-01-02 | Lance head and tube cleaning arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208033219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246731A (en) * | 2018-01-02 | 2018-07-06 | 四川空分设备(集团)有限责任公司 | Lance head and tube cleaning arrangement |
-
2018
- 2018-01-02 CN CN201820001344.8U patent/CN208033219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246731A (en) * | 2018-01-02 | 2018-07-06 | 四川空分设备(集团)有限责任公司 | Lance head and tube cleaning arrangement |
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