CN110260558B - Air source heat pump air inlet pipe structure convenient for dust removal - Google Patents
Air source heat pump air inlet pipe structure convenient for dust removal Download PDFInfo
- Publication number
- CN110260558B CN110260558B CN201910510657.5A CN201910510657A CN110260558B CN 110260558 B CN110260558 B CN 110260558B CN 201910510657 A CN201910510657 A CN 201910510657A CN 110260558 B CN110260558 B CN 110260558B
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- source heat
- dust removal
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- 239000000428 dust Substances 0.000 title claims abstract description 118
- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 4
- 238000004887 air purification Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an air inlet pipe structure of an air source heat pump convenient for dust removal, and relates to the technical field of air source heat pumps. The invention comprises a pipe body; the bottom of the inner wall of the pipe body is provided with a rectangular groove and a lead screw groove; the bottom surface in the rectangular groove is provided with a rectangular hole; a screw rod is rotationally connected in the screw rod groove; the tube body is connected with a dust removal ring through a lead screw; the interior of the dust removing ring is of a hollow structure; an annular notch is formed in the periphery of the dust removing ring, and an annular scraper is arranged inside the dust removing ring; the dust collecting pipe matched with the rectangular groove is fixedly connected to the peripheral side face of the dust removing ring. According to the invention, the dust removal ring is arranged in the pipe body, and the annular scraper on the dust removal ring is used for cleaning the inner wall of the pipe body, so that the problems that the inner wall of the air inlet pipe of the existing air source heat pump is easy to accumulate dust and the use of equipment is influenced are solved, and the use reliability of the equipment is improved; meanwhile, collected dust is discharged out of the air inlet pipe through the rectangular hole, so that the air inlet pipe can be cleaned under the condition that the air source heat pump does not stop, and the service efficiency of the equipment is improved.
Description
Technical Field
The invention belongs to the technical field of air source heat pumps, and particularly relates to an air inlet pipe structure of an air source heat pump, which is convenient for dust removal.
Background
An air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source. It can be the high-order heat energy that can not directly utilize to low level heat energy conversion for can utilizing, thereby reach the purpose of practicing thrift partial high-order energy, but at air source heat pump fresh air purification in-process, the intake stack is when the air inlet, because the long-term use of pipeline, make and to accumulate a large amount of dusts on the pipe wall, thereby influence air source heat pump fresh air purification's effect, the dust of long-term accumulation also easily drops, block up the filter screen or cause the influence to equipment inside, consequently, need improve air-supply source heat pump fresh air purification with the intake stack.
Disclosure of Invention
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an air source heat pump air inlet pipe structure convenient for dust removal, which comprises a pipe body; a rectangular groove is axially formed in the bottom of the inner wall of the pipe body; the inner wall of the pipe body is symmetrically provided with lead screw grooves relative to the axis; the screw rod groove is axially arranged along the pipe body;
sliding grooves are formed in the opposite inner side surfaces of the first rectangular groove; the bottom surface in the rectangular groove is provided with a plurality of rectangular holes; a stop block is fixedly connected to the inner top surface of the sliding chute relative to the rectangular hole;
a screw rod is rotatably connected in the screw rod groove; one end of the screw rod is connected with a motor through a transmission piece; the motor is fixedly connected with the peripheral side face of the pipe body; the pipe body is connected with a dust removal ring through a lead screw;
the interior of the dust removing ring is of a hollow structure; the peripheral side surface of the dust removing ring is in clearance fit with the inner wall of the pipe body; an annular notch is formed in the periphery of the dust removing ring; the inner part of the dust removing ring is fixedly connected with an annular scraper; the annular scraper is positioned in the annular groove, and the peripheral side surface of the annular scraper is in contact fit with the inner wall of the pipe body;
the peripheral side surface of the dust removing ring is fixedly connected with a screw nut matched with a screw; the peripheral side surface of the dust removal ring is fixedly connected with a dust collection pipe matched with the rectangular groove;
the inner wall of the dust collecting pipe is connected with two sealing plates in parallel in a rotating way; one opposite side surface of the sealing plate is fixedly connected with a rotating shaft; one end of the rotating shaft penetrates through the side wall of the dust collecting pipe and is in sliding fit with the inner bottom surface of the sliding chute; the upper part of the circumferential side surface of the rotating shaft is fixedly connected with a limiting shifting block.
Further, the pipe body is communicated with a filter screen box body; the filter screen box body is obliquely arranged relative to the axis of the pipe body; the filter screen box is internally detachably connected with a filter screen.
Furthermore, the peripheral side surface of the pipe body is fixedly connected with a dust removal pipe corresponding to the rectangular hole; the dust removal pipe is internally provided with a fan.
Furthermore, a clockwork spring is arranged on the peripheral side surface of the rotating shaft; one end of the clockwork spring is connected with the side wall of the dust collecting pipe.
Furthermore, the sealing plates are provided with sealing strips at the peripheral edges.
The invention has the following beneficial effects:
1. according to the invention, the dust removal ring is arranged in the pipe body, and the annular scraper on the dust removal ring is used for cleaning the inner wall of the pipe body, so that the problems that the inner wall of the air inlet pipe of the existing air source heat pump is easy to accumulate dust and the use of equipment is influenced after long-time use are solved, and the use reliability of the equipment is improved.
2. According to the invention, the rectangular holes are formed in the pipe body, the dust collecting pipe is arranged on the dust removing ring, and the dust collected by the dust collecting pipe is discharged out of the air inlet pipe through the rectangular holes, so that the condition that the dust is brought into the equipment by flowing air during cleaning is avoided; therefore, the air inlet pipe can be cleaned under the condition that the air source heat pump does not stop, and the service efficiency of the equipment is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air-source heat pump intake pipe structure for facilitating dust removal according to the present invention;
FIG. 2 is a schematic structural view of a tube;
FIG. 3 is a front view of the structure of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of the dust ring;
FIG. 6 is a front view of the structure of FIG. 5;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is a schematic view of the structure of the sealing plate;
in the drawings, the components represented by the respective reference numerals are listed below:
1-pipe body, 2-motor, 3-dedusting ring, 4-filter screen box body, 101-rectangular groove, 102-lead screw groove, 103-lead screw, 104-dedusting pipe, 301-annular notch, 302-annular scraper, 303-lead screw nut, 304-dust collecting pipe, 305-sealing plate, 306-rotating shaft, 307-limit shifting block, 1011-sliding chute, 1012-rectangular hole and 1013-stop block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "aperture", "upper", "lower", "axial", "top", "middle", "length", "inner", "peripheral", and the like, are used for the purpose of describing the invention only and for the purpose of simplifying the description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the invention.
The invention relates to an air inlet pipe structure of an air source heat pump, which is convenient for dust removal, and comprises a pipe body 1; a rectangular groove 101 is axially formed at the bottom of the inner wall of the pipe body 1; the inner wall of the pipe body 1 is symmetrically provided with lead screw grooves 102 relative to the axis, for example, the left and right quadrant points on the circumference of the inner wall of the pipe body 1 are provided with the lead screw grooves 102; the screw groove 102 is arranged along the axial direction of the pipe body 1;
as shown in fig. 3 and 4, sliding grooves 1011 are formed on opposite inner side surfaces of the rectangular groove 101, and the sliding grooves 1011 are also rectangular; the bottom surface in the rectangular groove 101 is provided with two rectangular holes 1012 which are respectively positioned at two ends of the rectangular groove 101; a stop block 1013 is fixedly connected to the inner top surface of the sliding chute 1011 at a position corresponding to the rectangular hole 1012; the length of the stop 1013 is less than the width of the rectangular aperture 1012;
preferably, the peripheral side surface of the tube body 1 is fixedly connected with the dust removal tube 104 corresponding to the rectangular hole 1012; a fan is arranged in the dust removing pipe 104; a dust bag or a dust box for collecting dust may also be provided.
A lead screw 103 is rotatably connected in the lead screw groove 102 through a bearing seat; the screw 103 extends to the outer side of the pipe body 1, and one end of the screw 103 is connected with a motor 2 through a transmission piece, such as gear transmission, chain transmission or synchronous belt transmission; the motor 2 is fixedly connected with the peripheral side surface of the pipe body 1; the tube body 1 is connected with a dust removing ring 3 through a screw rod 103;
as shown in fig. 5-7, the interior of the dust removing ring 3 is a hollow structure, and the cross section of the dust removing ring 3 is rectangular or circular; the peripheral side surface of the dust removing ring 3 is in clearance fit with the inner wall of the pipe body 1, and the peripheral side surface of the dust removing ring 3 is not in contact with the inner wall of the pipe body 1, so that the influence on the cleaning of dust on the inner wall of the pipe body 1 is avoided;
the circumferential side surface of the dust removing ring 3 is provided with an annular notch 301; an annular scraper 302 is fixedly connected inside the dust removing ring 3, and the annular scraper 302 can be a metal plate and is welded or connected with the inside of the dust removing ring 3 through a screw; the annular scraper 302 is positioned in the annular notch 301, and the peripheral side surface of the annular scraper 302 is in contact fit with the inner wall of the pipe body 1;
preferably, as shown in fig. 7, the distances between the annular scraper 302 and the left and right inner side surfaces of the annular notch 301 are equal, so that the inner wall of the pipe body 1 can be cleaned when the dust removing ring 3 moves back and forth along the axial direction of the pipe body 1, and the cleaned dust enters the dust removing ring 3 through the gap between the annular scraper 302 and the inner side surface of the annular notch 301; the edge of the annular scraper 302 can also be provided with an annular brush strip, the inner wall of the pipe body 1 is cleaned by using bristles, the annular brush strip can be fixed with the annular scraper 302 through screws, the damage to the pipe body 1 can be reduced by the annular brush strip, and meanwhile, the annular brush strip is convenient to replace;
the peripheral side surface of the dust removing ring 3 is fixedly connected with a screw nut 303 matched with the screw 103; the peripheral side surface of the dust removing ring 3 is fixedly connected with a dust collecting pipe 304 matched with the rectangular groove 101;
the motor 2 rotates to drive the screw rod 103 to rotate, so that the dust removal ring 3 moves axially along the pipe body 1 by utilizing the matched screw rod nut 303 to clean the inner wall of the pipe body 1, and dust falling into the dust removal ring 3 falls into the dust collection pipe 304 during cleaning;
the inner wall of the dust collecting pipe 304 is connected with two sealing plates 305 in parallel in a rotating way, and the two sealing plates 305 are exactly matched with the pipe orifice of the dust collecting pipe 304 when in a horizontal state, so that the pipe orifice of the dust collecting pipe 304 is sealed, and dust is collected;
as shown in fig. 8, a rotating shaft 306 is fixedly connected to each of opposite sides of the sealing plate 305; one end of the rotating shaft 306 penetrates through the side wall of the dust collecting pipe 304 and is in sliding fit with the inner bottom surface of the sliding groove 1011; the upper part of the peripheral side surface of the rotating shaft 306 is fixedly connected with a limiting shifting block 307;
preferably, a spring is arranged on the peripheral side of the rotating shaft 306; one end of the clockwork spring is connected with the side wall of the dust collecting pipe 304; the two sealing plates 305 can be kept in a horizontal state all the time.
When the dust removing ring 3 moves along the axial direction of the pipe body 1, the rotating shafts 306 on the two sealing plates 305 slide along the sliding grooves 1011, when the dust removing ring moves to the position of the rectangular groove 101, the stop blocks 1013 on the inner top surfaces of the sliding grooves 1011 block the limiting shifting blocks 307 on the rotating shafts 306, and when the dust removing ring 3 continues to move, the rotating shafts 306 can rotate, so that the sealing plates 305 are driven to rotate to form inclined rotation, and then dust in the dust collecting pipe 304 falls into the dust removing pipe 104;
when the rotating shaft 306 on the other sealing plate 305 moves to the limiting shifting block 307, the same action is generated, and the dust removal is completed; after the rotating shaft 306 moves past the limiting shifting block 307, the rotating shaft 306 is rotated under the action of the clockwork spring, so that the sealing plate 305 is reset to be in a horizontal state;
when dust falls into the dust removal pipe 104 from the rectangular hole 1012, the dust is quickly removed under the action of the fan, and the dust in the dust removal ring 3 can be quickly extracted by the air draft effect generated by the rotation of the fan, so that the thoroughness of internal cleaning is improved; when a dust bag or a dust box is arranged in the dust removing pipe 104, the dust in the dust bag or the dust box needs to be cleaned manually at regular intervals; the motor 2 and the fan can be controlled to be started by a manual switch, and can also be automatically started at regular intervals through system setting to finish regular cleaning.
The inner wall of the pipe body 1 is cleaned by the annular scraper 302 on the dust removal ring 3, so that the problems that dust is easily accumulated on the inner wall of the air inlet pipe of the existing air source heat pump after long-time use and the use of equipment is influenced are solved, and the use reliability of the equipment is improved;
the rectangular hole 1012 is formed in the pipe body 1, the dust collecting pipe 304 is arranged on the dust removing ring 3, and the dust removed by the dust collecting pipe 304 is collected and discharged out of the air inlet pipe through the rectangular hole 1012, so that the condition that the dust is brought into the equipment by flowing air during cleaning is avoided; therefore, the air inlet pipe can be cleaned under the condition that the air source heat pump does not stop, and the service efficiency of the equipment is improved.
As shown in fig. 1 and 4, preferably, the tube body 1 is communicated with a filter screen box body 4; the filter screen box body 4 is obliquely arranged relative to the axis of the pipe body 1; a filter screen is detachably connected in the filter screen box body 4, and the filter screen can be inserted from one side of the filter screen box body 4 and is sealed in the filter screen box body 4 through a matched cover body;
the filter area of the filter screen in the pipe body 1 can be increased by the inclined arrangement, so that the filter effect and the efficiency are improved.
Preferably, the sealing strips are arranged on the peripheral edges of the two sealing plates 305, the sealing plates 305 are provided with the sealing strips, so that gaps reserved on the sealing plates 305 under the condition of free rotation can be sealed, the sealing strips enable the two sealing plates 305 to have a better sealing effect on the pipe opening of the dust collecting pipe 304, the air flow in the pipe body 1 can be effectively prevented, the condition that the dust is raised due to air disturbance in the dust collecting pipe 304 is caused, and the stability and the reliability of dust cleaning are further improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. An air inlet pipe structure of an air source heat pump convenient for dust removal comprises a pipe body (1); the method is characterized in that: a rectangular groove (101) is axially formed in the bottom of the inner wall of the pipe body (1); the inner wall of the pipe body (1) is symmetrically provided with screw grooves (102) relative to the axis; the screw rod groove (102) is axially arranged along the pipe body (1);
sliding grooves (1011) are formed in the opposite inner side faces of the rectangular groove (101); the inner bottom surface of the rectangular groove (101) is provided with a plurality of rectangular holes (1012); a stop block (1013) is fixedly connected to the inner top surface of the sliding chute (1011) corresponding to the position of the rectangular hole (1012);
a lead screw (103) is rotationally connected in the lead screw groove (102); one end of the lead screw (103) is connected with a motor (2) through a transmission piece; the motor (2) is fixedly connected with the peripheral side surface of the pipe body (1); the pipe body (1) is connected with a dust removing ring (3) through a lead screw (103);
the interior of the dust removing ring (3) is of a hollow structure; the peripheral side surface of the dust removing ring (3) is in clearance fit with the inner wall of the pipe body (1); an annular notch (301) is formed in the periphery of the dust removing ring (3); an annular scraper (302) is fixedly connected inside the dust removing ring (3); the annular scraper (302) is positioned in the annular notch (301), and the peripheral side surface of the annular scraper (302) is in contact fit with the inner wall of the pipe body (1);
the peripheral side surface of the dust removing ring (3) is fixedly connected with a screw nut (303) matched with the screw (103); the peripheral side surface of the dust removing ring (3) is fixedly connected with a dust collecting pipe (304) matched with the rectangular groove (101);
the inner wall of the dust collecting pipe (304) is connected with two sealing plates (305) in parallel and in a rotating way; one opposite side surface of the sealing plate (305) is fixedly connected with a rotating shaft (306); one end of the rotating shaft (306) penetrates through the side wall of the dust collecting pipe (304) and is in sliding fit with the inner bottom surface of the sliding groove (1011); the upper part of the peripheral side surface of the rotating shaft (306) is fixedly connected with a limiting shifting block (307).
2. The air source heat pump air inlet pipe structure convenient for dust removal according to claim 1, wherein the pipe body (1) is communicated with a filter screen box body (4); the filter screen box body (4) is obliquely arranged relative to the axis of the pipe body (1); the filter screen box body (4) is internally detachably connected with a filter screen.
3. The air source heat pump air inlet pipe structure convenient for dust removal according to claim 1, wherein a dust removal pipe (104) corresponding to the rectangular hole (1012) is fixedly connected to the peripheral side surface of the pipe body (1); a fan is arranged in the dust removal pipe (104).
4. The air source heat pump air inlet pipe structure convenient for dust removal according to claim 1, wherein a clockwork spring is arranged on the peripheral side of the rotating shaft (306); one end of the clockwork spring is connected with the side wall of the dust collecting pipe (304).
5. The air source heat pump air inlet pipe structure convenient for dust removal according to claim 1, wherein sealing strips are arranged on the peripheral edges of the two sealing plates (305).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510657.5A CN110260558B (en) | 2019-06-13 | 2019-06-13 | Air source heat pump air inlet pipe structure convenient for dust removal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510657.5A CN110260558B (en) | 2019-06-13 | 2019-06-13 | Air source heat pump air inlet pipe structure convenient for dust removal |
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| CN110260558A CN110260558A (en) | 2019-09-20 |
| CN110260558B true CN110260558B (en) | 2021-01-08 |
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| CN201910510657.5A Active CN110260558B (en) | 2019-06-13 | 2019-06-13 | Air source heat pump air inlet pipe structure convenient for dust removal |
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| CN110917738B (en) * | 2019-10-24 | 2021-08-24 | 浙江特富发展股份有限公司 | Flue gas filtering device in environment-friendly boiler |
| CN112197091A (en) * | 2020-09-27 | 2021-01-08 | 安徽华城兴建材科技有限公司 | High-strength fireproof ventilating duct and mounting device thereof |
| CN113680150A (en) * | 2021-08-18 | 2021-11-23 | 深圳市中菁环境工程有限公司 | High-temperature heat pump waste heat recovery economizer system |
| CN115823858A (en) * | 2022-12-09 | 2023-03-21 | 安徽欧瑞达电器科技有限公司 | Air source heat pump grain drying system with louver inertial dust removal function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3510349B2 (en) * | 1994-09-26 | 2004-03-29 | 東京電力株式会社 | In-pipe cleaning device |
| CN2586541Y (en) * | 2002-08-23 | 2003-11-19 | 王安新 | Cast iron pipe inner wall deashing apparatus |
| CN201385251Y (en) * | 2009-03-07 | 2010-01-20 | 浙江开元安装集体有限公司第二分公司 | Pipeline cleaning and rust removing device |
| CN202290672U (en) * | 2011-09-16 | 2012-07-04 | 中国西电电气股份有限公司 | Tooling for cleaning inner wall of busbar tube |
| CN103599910B (en) * | 2013-10-24 | 2015-08-26 | 宁波管通机械有限公司 | Small-bore pipeline inwall rust cleaning method for cleaning and device thereof |
| CN203964409U (en) * | 2014-07-01 | 2014-11-26 | 张玉强 | A kind of solar water heater with removing thermal-collecting tube impurity |
| CN205362136U (en) * | 2016-01-19 | 2016-07-06 | 华云新能源科技（深圳）有限公司 | Oil gas pipeline coke cleaning device |
| CN206504500U (en) * | 2016-12-28 | 2017-09-19 | 任丘市大友采暖设备有限公司 | A kind of net for air-source heat pump units with automatic dedusting function |
| CN207787220U (en) * | 2017-10-29 | 2018-08-31 | 江苏阿兰贝尔环保科技有限公司 | A kind of integrated prefabricated pumping plant with decontamination apparatus |
| CN107990515A (en) * | 2017-12-06 | 2018-05-04 | 山东阿尔普尔节能装备有限公司 | A kind of air source heat pump fresh air purifying blast pipe |
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