CN109631149A - A kind of long range heat distribution pipeline monitoring system - Google Patents

A kind of long range heat distribution pipeline monitoring system Download PDF

Info

Publication number
CN109631149A
CN109631149A CN201811500265.2A CN201811500265A CN109631149A CN 109631149 A CN109631149 A CN 109631149A CN 201811500265 A CN201811500265 A CN 201811500265A CN 109631149 A CN109631149 A CN 109631149A
Authority
CN
China
Prior art keywords
sealing ring
fixing bolt
monitoring system
heat distribution
long range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811500265.2A
Other languages
Chinese (zh)
Other versions
CN109631149B (en
Inventor
杨胜伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Dadao New Energy Development Co Ltd
Original Assignee
Hunan Dadao New Energy Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Dadao New Energy Development Co Ltd filed Critical Hunan Dadao New Energy Development Co Ltd
Priority to CN201811500265.2A priority Critical patent/CN109631149B/en
Publication of CN109631149A publication Critical patent/CN109631149A/en
Application granted granted Critical
Publication of CN109631149B publication Critical patent/CN109631149B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1048Counting of energy consumption
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pipe Accessories (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention provides a kind of long range heat distribution pipeline monitoring system.The long range heat distribution pipeline monitoring system includes hot water pipe road, fixing bolt, water flow testing agency, rubber seal mechanism;The hot water pipe road is internally connected with the fixing bolt;The junction of the hot water pipe road and the fixing bolt is equipped with the rubber seal mechanism;The bottom end of the fixing bolt is equipped with the water flow testing agency.Long range heat distribution pipeline monitoring system provided by the invention, so that improvement cost is lower, it is minimum for the damage of pipeline;Mounting hole can be blocked by integrally formed rubber seal mechanism, fill up connection gap, so that sealing effect is more preferable, and is also convenient for the connection of subsequent fixed bolt, without outputing helicitic texture on mounting hole, guarantee the intensity of tube body;Water flow testing agency can carry out leak water detdction.

Description

A kind of long range heat distribution pipeline monitoring system
Technical field
The present invention relates to Monitoring Pinpelines equipment technical field more particularly to a kind of long range heat distribution pipeline monitoring systems.
Background technique
The distance of heat distribution pipeline employed in practice is generally longer, and in actual use, thermal pipe often occurs Road leaks situation;There are many reason of being researched and analysed discovery, heat distribution pipeline is caused to leak, as road construction, side are moist Pipeline rust caused by environment uses for a long time;Thus, it needs periodically to arrange leakage point existing on heat distribution pipeline It looks into.
Traditional pipeline itself lacks monitoring device, all only single transportation function, and pipeline is all to be laid with to use Many years, the replacement of large area can not be carried out when laying monitoring system, existing pipeline can only be transformed, however at present Improved method is larger for the damage of pipeline, and leakproofness is bad.
Therefore, it is necessary to provide a kind of new long range heat distribution pipeline monitoring system solution above-mentioned technical problem.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of correctional effects, and long range heat distribution pipeline good, that sealing effect is good is used Monitoring system.
In order to solve the above technical problems, long range heat distribution pipeline monitoring system provided by the invention includes: hot water pipe road, The outer wall in the hot water pipe road is provided with circular mounting hole;Rubber seal mechanism, the rubber seal mechanism include upper sealing ring, Connecting tube and lower sealing ring, and the upper sealing ring is set to the top side wall of the connecting tube;The lower sealing ring is set to institute State the bottom end side wall of connecting tube;The upper sealing ring, connecting tube and the lower sealing ring are in I-shaped connection;The upper sealing Ring fits in the mounting hole top surface;The connecting tube fits in the inner wall of the mounting hole;The lower sealing ring fits in institute State the bottom surface of mounting hole;Internal thread structure is distributed in the inner wall of the connecting tube;Fixing bolt, the fixing bolt and the company Adapter tube is closely connected, and the bottom end of the fixing bolt is inserted into the inside in the hot water pipe road;The fixing bolt Top fits in the top surface of the upper sealing ring;Water flow testing agency, the water flow testing agency are set to the fixing bolt Bottom end, and the length of the water flow testing agency is less than the bottom diameter of the fixing bolt.
Preferably, the upper sealing ring, the connecting tube and the lower sealing ring are an integral molding structure, and it is described on The diameter of sealing ring is identical as the diameter of the lower sealing ring.
Preferably, the water flow testing agency is located at the middle part in the hot water pipe road, and the water flow testing agency and institute It is arranged in parallel to state hot water pipe road.
Preferably, the fixing bolt includes cover board, stud and rubber seal, and the stud and the connecting tube It is cooperatively connected;The top of the stud is equipped with the cover board, and the top exterior walls of the stud are cased with rubber seal.
Preferably, the diameter of the cover board, the rubber seal, the upper sealing ring and the mounting hole successively subtracts It is small, and rubber seal fitting is set between the cover board, the upper sealing ring.
Preferably, the water flow testing agency includes flow detection meter, water inlet pipe, outlet pipe and filter plate, and the stream Amount detection meter is set to the bottom end of the stud;The two sides of the flow detection meter have been respectively communicated with the water inlet pipe and the water outlet Pipe, and the water inlet pipe is threaded with the filter plate.
Preferably, the flow detection meter is electrically connected with indication mechanism, and the indication mechanism includes box body, digital display meter And protective plate;The digital display meter is electrically connected the flow detection meter, and the digital display meter is installed on the inside of the box body; The box body is connected through a screw thread the protective plate.
Compared with the relevant technologies, long range heat distribution pipeline provided by the invention monitoring system has following beneficial to effect Fruit:
The present invention provides a kind of long range heat distribution pipeline monitoring system, when being transformed to hot water pipe road, need to only open Mounting hole out, so that improvement cost is lower, it is minimum for the damage of pipeline;Pass through integrally formed rubber seal mechanism energy It is enough that mounting hole is blocked, connection gap is filled up, so that sealing effect is more preferable, and is also convenient for the company of subsequent fixed bolt It connects, without outputing helicitic texture on mounting hole, guarantees the intensity of tube body;Then fixed bolt is screwed into connecting tube, just Water flow testing agency can be placed in hot water pipe road, realize leak water detdction.
Detailed description of the invention
Fig. 1 is a kind of structural representation of preferred embodiment of long range heat distribution pipeline monitoring system provided by the invention Figure;
Fig. 2 is rubber seal mechanism structure schematic diagram shown in FIG. 1;
Fig. 3 is water flow testing agency shown in FIG. 1 structural schematic diagram;
Fig. 4 is indication mechanism structural schematic diagram shown in FIG. 1.
Figure label: 1, hot water pipe road, 11, mounting hole, 2, fixing bolt, 21, cover board, 22, stud, 23, rubber seal Circle, 3, water flow testing agency, 31, flow detection meter, 32, water inlet pipe, 33, outlet pipe, 34, filter plate, 4, rubber seal mechanism, 41, upper sealing ring, 42, connecting tube, 43, lower sealing ring, 5, indication mechanism, 51, box body, 52, digital display meter, 53, protective plate.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 1 is long range heat distribution pipeline provided by the invention prison A kind of structural schematic diagram of preferred embodiment of control system;Fig. 2 is rubber seal mechanism structure schematic diagram shown in FIG. 1;Fig. 3 is Water flow testing agency shown in FIG. 1 structural schematic diagram;Fig. 4 is indication mechanism structural schematic diagram shown in FIG. 1.Long range heating power Pipeline monitoring system includes: hot water pipe road 1, fixing bolt 2, water flow testing agency 3, rubber seal mechanism 4;The hot water pipe Road 1 is internally connected with the fixing bolt 2;The junction in the hot water pipe road 1 and the fixing bolt 2 is equipped with the rubber Sealing mechanism 4;The bottom end of the fixing bolt 2 is equipped with the water flow testing agency 3.
In the specific implementation process, as shown in Figure 1, hot water pipe road 1, the outer wall in the hot water pipe road 1 are provided with circular peace Fill hole 11;When being transformed to hot water pipe road, mounting hole 11 only need to be outputed, so that improvement cost is lower, for pipeline Damage it is minimum.
In the specific implementation process, as depicted in figs. 1 and 2, rubber seal mechanism 4, the rubber seal mechanism 4 include upper Sealing ring 41, connecting tube 42 and lower sealing ring 43, and the upper sealing ring 41 is set to the top side wall of the connecting tube 42;Institute State the bottom end side wall that lower sealing ring 43 is set to the connecting tube 42;The upper sealing ring 41, connecting tube 42 and the lower sealing Ring 43 is in I-shaped connection;The upper sealing ring 41 fits in 11 top surface of mounting hole;The connecting tube 42 fits in described The inner wall of mounting hole 11;The lower sealing ring 43 fits in the bottom surface of the mounting hole 11;The inner wall of the connecting tube 42 is distributed There is internal thread structure;The upper sealing ring 41, the connecting tube 42 and the lower sealing ring 43 are an integral molding structure, and The diameter of the upper sealing ring 41 is identical as the diameter of the lower sealing ring 43;Pass through integrally formed 4 energy of rubber seal mechanism It is enough that mounting hole 11 is blocked, connection gap is filled up, so that sealing effect is more preferable, and is also convenient for subsequent fixed bolt 2 Connection, without outputing helicitic texture on mounting hole 11, guarantees the intensity of tube body.
In the specific implementation process, as depicted in figs. 1 and 2, fixing bolt 2, the fixing bolt 2 and the connecting tube 42 It is closely connected, and the bottom end of the fixing bolt 2 is inserted into the inside in the hot water pipe road 1;The fixing bolt 2 Top fits in the top surface of the upper sealing ring 41;The fixing bolt 2 includes cover board 21, stud 22 and rubber seal 23, and the stud 22 and the connecting tube 42 are cooperatively connected;The top of the stud 22 is equipped with the cover board 21, and the spiral shell The top exterior walls of column 22 are cased with rubber seal 23;The cover board 21, the rubber seal 23, the upper sealing ring 41 with And the diameter of the mounting hole 11 is sequentially reduced, and the fitting of the rubber seal 23 is set to the cover board 21, the upper sealing Between ring 41;It can be realized the limit of the installation for water flow testing agency 3 by fixing bolt 2, so that installing and dismounting is more square Just.
In the specific implementation process, as shown in figures 1 and 3, water flow testing agency 3, the water flow testing agency 3 are set to institute The bottom end of fixing bolt 2 is stated, and the length of the water flow testing agency 3 is less than the bottom diameter of the fixing bolt 2;The water Stream testing agency 3 is located at the middle part in the hot water pipe road 1, and the water flow testing agency 3 is parallel to each other with the hot water pipe road 1 Setting;The water flow testing agency 3 includes flow detection meter 31, water inlet pipe 32, outlet pipe 33 and filter plate 34, and the flow Detection meter 31 is set to the bottom end of the stud 22;The two sides of the flow detection meter 31 have been respectively communicated with 32 He of water inlet pipe The outlet pipe 33, and the water inlet pipe 32 is threaded with the filter plate 34;Water can be flowed by water flow testing agency 3 Row detection, to judge whether leak by water flow, and filter plate 34 can be filtered water.
In the specific implementation process, as shown in figure 4, the flow detection meter 31 is electrically connected with indication mechanism 5, and it is described Indication mechanism 5 includes box body 51, digital display meter 52 and protective plate 53;The digital display meter 52 is electrically connected the flow detection meter 31, and the digital display meter 52 is installed on the inside of the box body 51;The box body 51 is connected through a screw thread the protective plate 53;It is logical Water flow can be shown by crossing indication mechanism 5, convenient for observation.
The working principle of long range heat distribution pipeline monitoring system provided by the invention is as follows:
When being transformed to hot water pipe road 1, required mounting hole 11 is drilled out on hot water pipe road 1 by punch machines, Then rubber seal mechanism 4 is connect with mounting hole 11, bending rubber seal mechanism 4 makes connecting tube 42 be embedded into mounting hole 11 Interior, upper sealing ring 41 fits in the top surface of mounting hole 11, lower sealing ring 43 fits in the bottom surface of mounting hole 11, can be close by rubber Sealing mechanism 4 is closely embedded into the outer wall of mounting hole 11;Then rubber seal 23 is socketed in the outside of stud 22, stud 22 is filled in Enter into mounting hole 11, then turn cover board 21, so that the cooperation of stud 22 is screwed into connecting tube 42, and then drives water flow inspection It surveys mechanism 3 to enter in hot water pipe road 1, rubber seal 23 is placed between upper sealing ring 41, lower sealing ring 43;When heating, Hot water is entered in flow detection meter 31 by water inlet pipe 32 and is then discharged again by outlet pipe 33, and filter plate 34 can carry out water Filtering, when the leakage of pipeline somewhere, the water in pipeline will be reduced, and the numerical value of flow detection meter 31 can also be reduced, flow Numerical value can show that service personnel can observe the numerical value of digital display meter 52 by opening protective plate 53 by digital display meter 52.
Flow detection meter 31, digital display meter 52 be Hefei Smith's flow instrument Co., Ltd production Smith5013 and its Support circuit.
Compared with the relevant technologies, long range heat distribution pipeline provided by the invention monitoring system has following beneficial to effect Fruit:
The present invention provides a kind of long range heat distribution pipeline monitoring system, when being transformed to hot water pipe road, need to only open Mounting hole 11 out, so that improvement cost is lower, it is minimum for the damage of pipeline;Pass through integrally formed rubber seal mechanism 4 can block mounting hole 11, fill up connection gap, so that sealing effect is more preferable, and be also convenient for subsequent fixed bolt 2 Connection guarantee the intensity of tube body without outputing helicitic texture on mounting hole 11;Then fixing bolt 2 is screwed into connection In pipe 42, water flow testing agency 3 can be placed in hot water pipe road 1, realize leak water detdction.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims (7)

1. a kind of long range heat distribution pipeline monitoring system characterized by comprising
The outer wall in hot water pipe road (1), the hot water pipe road (1) is provided with circular mounting hole (11);
Rubber seal mechanism (4), the rubber seal mechanism (4) include upper sealing ring (41), connecting tube (42) and lower sealing Ring (43), and the upper sealing ring (41) is set to the top side wall of the connecting tube (42);The lower sealing ring (43) is set to institute State the bottom end side wall of connecting tube (42);The upper sealing ring (41), connecting tube (42) and the lower sealing ring (43) are in I-shaped Type connection;The upper sealing ring (41) fits in the mounting hole (11) top surface;The connecting tube (42) fits in the installation The inner wall in hole (11);The lower sealing ring (43) fits in the bottom surface of the mounting hole (11);The inner wall of the connecting tube (42) Internal thread structure is distributed with;
Fixing bolt (2), the fixing bolt (2) is closely connected with the connecting tube (42), and the fixing bolt (2) Bottom end be inserted into the inside of the hot water pipe road (1);The top of the fixing bolt (2) fits in the upper sealing ring (41) Top surface;
Water flow testing agency (3), the water flow testing agency (3) is set to the bottom end of the fixing bolt (2), and the water flow is examined The length for surveying mechanism (3) is less than the bottom diameter of the fixing bolt (2).
2. long range heat distribution pipeline monitoring system according to claim 1, which is characterized in that the upper sealing ring (41), the connecting tube (42) and the lower sealing ring (43) are an integral molding structure, and the upper sealing ring (41) is straight Diameter is identical as the diameter of the lower sealing ring (43).
3. long range heat distribution pipeline monitoring system according to claim 1, which is characterized in that the water flow testing agency (3) it is located at the middle part of the hot water pipe road (1), and the water flow testing agency (3) is parallel to each other with the hot water pipe road (1) and sets It sets.
4. long range heat distribution pipeline monitoring system according to claim 1, which is characterized in that the fixing bolt (2) Including cover board (21), stud (22) and rubber seal (23), and the stud (22) and the connecting tube (42) cooperation connect It connects;The top of the stud (22) is equipped with the cover board (21), and the top exterior walls of the stud (22) are cased with rubber seal (23)。
5. long range heat distribution pipeline monitoring system according to claim 4, which is characterized in that the cover board (21), institute The diameter for stating rubber seal (23), the upper sealing ring (41) and the mounting hole (11) is sequentially reduced, and the rubber Sealing ring (23) fitting is set between the cover board (21), the upper sealing ring (41).
6. long range heat distribution pipeline monitoring system according to claim 4, which is characterized in that the water flow testing agency It (3) include flow detection meter (31), water inlet pipe (32), outlet pipe (33) and filter plate (34), and the flow detection meter (31) Set on the bottom end of the stud (22);The two sides of the flow detection meter (31) have been respectively communicated with the water inlet pipe (32) and described Outlet pipe (33), and the water inlet pipe (32) is threaded with the filter plate (34).
7. long range heat distribution pipeline monitoring system according to claim 6, which is characterized in that the flow detection meter (31) it is electrically connected with indication mechanism (5), and the indication mechanism (5) includes box body (51), digital display meter (52) and protective plate (53);The digital display meter (52) is electrically connected the flow detection meter (31), and the digital display meter (52) is installed on the box body (51) inside;The box body (51) is connected through a screw thread the protective plate (53).
CN201811500265.2A 2018-12-07 2018-12-07 Monitoring system for long-distance thermal pipeline Active CN109631149B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811500265.2A CN109631149B (en) 2018-12-07 2018-12-07 Monitoring system for long-distance thermal pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811500265.2A CN109631149B (en) 2018-12-07 2018-12-07 Monitoring system for long-distance thermal pipeline

Publications (2)

Publication Number Publication Date
CN109631149A true CN109631149A (en) 2019-04-16
CN109631149B CN109631149B (en) 2020-10-23

Family

ID=66072225

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811500265.2A Active CN109631149B (en) 2018-12-07 2018-12-07 Monitoring system for long-distance thermal pipeline

Country Status (1)

Country Link
CN (1) CN109631149B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206506A (en) * 2019-06-10 2019-09-06 湖南达道新能源开发有限公司 A kind of geothermal drilling well head cover board

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205227501U (en) * 2015-10-24 2016-05-11 任学智 Intelligence caliduct device based on singlechip
CN105674063A (en) * 2016-04-06 2016-06-15 青岛瑞雪兆散热器有限公司 Liquid pipeline overflow automatic detection control device
CN206038171U (en) * 2016-09-26 2017-03-22 浙江省太阳能产品质量检验中心 Hot water pipeline temperature measuring device
CN207298202U (en) * 2017-08-06 2018-05-01 江苏瑞源塑业有限公司 A kind of corrugated pipe connector
CN208043152U (en) * 2018-02-05 2018-11-02 苏州化工仪表有限公司 A kind of mass flowmenter for chemicals production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205227501U (en) * 2015-10-24 2016-05-11 任学智 Intelligence caliduct device based on singlechip
CN105674063A (en) * 2016-04-06 2016-06-15 青岛瑞雪兆散热器有限公司 Liquid pipeline overflow automatic detection control device
CN206038171U (en) * 2016-09-26 2017-03-22 浙江省太阳能产品质量检验中心 Hot water pipeline temperature measuring device
CN207298202U (en) * 2017-08-06 2018-05-01 江苏瑞源塑业有限公司 A kind of corrugated pipe connector
CN208043152U (en) * 2018-02-05 2018-11-02 苏州化工仪表有限公司 A kind of mass flowmenter for chemicals production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206506A (en) * 2019-06-10 2019-09-06 湖南达道新能源开发有限公司 A kind of geothermal drilling well head cover board
CN110206506B (en) * 2019-06-10 2021-09-28 湖南达道新能源开发有限公司 Wellhead cover plate for geothermal drilling

Also Published As

Publication number Publication date
CN109631149B (en) 2020-10-23

Similar Documents

Publication Publication Date Title
CN101986123B (en) Device for comprehensively testing performance of spray nozzles
CN206593808U (en) A kind of pipeline connector leak detector
RU2570304C1 (en) Device for accumulation, display and removal of air to be used in nuclear industry
CN109631149A (en) A kind of long range heat distribution pipeline monitoring system
CN110702323A (en) Liquid pipeline normally closed valve leakproofness monitoring devices
CN204705380U (en) A kind of water environment pick-up unit
CN208596018U (en) A kind of pipeline vacuum leak test plant
CN218067928U (en) Multifunctional water quality monitoring device
CN217276322U (en) Remote automatic transmission water meter for large caliber
CN109444032A (en) Intelligent monitoring device for power cable corrosion monitoring
CN106768648B (en) Buried pipeline leakage simulation test system
CN209342580U (en) Intelligent monitoring device for power cable corrosion monitoring
CN209280041U (en) A kind of dedicated hydrology inspection well of drainage pipeline networks
CN203336854U (en) Damage detecting device of solar thermal collector with water serving as working medium
CN209910908U (en) Valve test device
CN204008015U (en) A kind of optical cable infiltration pick-up unit
CN203929143U (en) A kind of fast clamp formula Ultrasonic water meter
CN207147688U (en) Water-aspirator pressure, flow detector
CN208983001U (en) Air cooling tubes condenser draining system
CN208503964U (en) A kind of gasholder station pipe safety device
CN207264791U (en) A kind of dual measuring device of liquid level
CN106643993B (en) Device for low-temperature test of water supply vertical pipe and water meter
CN110608992A (en) Probe device and method for testing high-temperature corrosion resistance of metal material on heating surface of waste incineration boiler
CN204064815U (en) Fire proof motor ventilation duct water test unit
CN109654594A (en) Intelligent pipeline compensator accident warning device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant