CN218271188U - Boiler internal pressure detector - Google Patents

Boiler internal pressure detector Download PDF

Info

Publication number
CN218271188U
CN218271188U CN202222642346.4U CN202222642346U CN218271188U CN 218271188 U CN218271188 U CN 218271188U CN 202222642346 U CN202222642346 U CN 202222642346U CN 218271188 U CN218271188 U CN 218271188U
Authority
CN
China
Prior art keywords
cylinder
pressure
installation
boiler
fixed
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.)
Active
Application number
CN202222642346.4U
Other languages
Chinese (zh)
Inventor
谭皓文
田康
王兵
党华甫
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.)
Zhongheyi Testing Technology Co.,Ltd.
Original Assignee
Henan Zhongheyi Testing Technology 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 Henan Zhongheyi Testing Technology Co ltd filed Critical Henan Zhongheyi Testing Technology Co ltd
Priority to CN202222642346.4U priority Critical patent/CN218271188U/en
Application granted granted Critical
Publication of CN218271188U publication Critical patent/CN218271188U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Measuring Fluid Pressure (AREA)

Abstract

The utility model discloses a boiler internal pressure detector, which comprises an installation cylinder, a pressure conduction mechanism and a pressure detection mechanism; installing a cylinder: the left end of the glass cylinder is provided with a glass cylinder, the left end of the glass cylinder is provided with a fixed cylinder, the opening at the left end of the fixed cylinder is provided with a sealing plate, the right end inside the installation cylinder is provided with a first fixing ring, and the right end inside the fixed cylinder is provided with a second fixing ring; the pressure transmission mechanism comprises: the first fixing ring and the second fixing ring are arranged at the left end of the mounting cylinder in a matched manner; pressure detection mechanism: set up respectively in the extrados middle part of fixed drum and glass drum, pressure measurement mechanism sets up with the cooperation of pressure conduction mechanism, this boiler internal pressure detector, makes pressure measurement part can detect the inside pressure of boiler outside, reduces the influence of the inside high temperature high pressure steam of boiler to pressure measurement part, improves the life of device, improves the degree of accuracy that detects.

Description

Boiler internal pressure detector
Technical Field
The utility model relates to a boiler internal pressure detects technical field, specifically is a boiler internal pressure detector.
Background
The boiler is an energy conversion device, energy input to the boiler has chemical energy in fuel, electric energy, the boiler outputs steam with certain heat energy, high-temperature water or an organic heat carrier, the steam inside the boiler can be continuously increased when the boiler is heated, so that the pressure inside the boiler is increased, in order to master the operation state of the boiler, a pressure detection part is usually installed inside the boiler, so that the air pressure inside the boiler can be detected, a traditional pressure detection part is usually installed inside the boiler, although the pressure inside the boiler can also be detected, however, because the boiler is operated, a large amount of high-temperature high-pressure steam is contained inside the boiler, the steam can enter the detection part, the operation of the detection part is influenced, meanwhile, the detection part is damaged, so that the detection accuracy is low, and the service life of the detection part is short, therefore, the boiler internal pressure detector is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a boiler internal pressure detector, can improve the degree of accuracy that detects, can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: a boiler internal pressure detector comprises an installation cylinder, a pressure conduction mechanism and a pressure detection mechanism;
installing a cylinder: the left end of the glass cylinder is provided with a glass cylinder, the left end of the glass cylinder is provided with a fixed cylinder, the opening at the left end of the fixed cylinder is provided with a sealing plate, the right end inside the installation cylinder is provided with a first fixing ring, and the right end inside the fixed cylinder is provided with a second fixing ring;
the pressure transmission mechanism comprises: the first fixing ring and the second fixing ring are arranged at the left end of the mounting cylinder in a matched manner;
pressure detection mechanism: set up respectively in the extrados middle part of fixed drum and glass drum, pressure measurement mechanism sets up with the cooperation of pressure conduction mechanism, can conduct the inside atmospheric pressure of boiler to the outside, simultaneously, can eliminate the condition that causes the inside air inflation of device because of high temperature at the in-process of conduction, make pressure measurement part can detect the inside pressure of boiler outside the boiler, reduce the influence of the inside high temperature high pressure steam of boiler to pressure measurement part, improve the life of device, improve the degree of accuracy that detects.
Further, still include the PLC controller, the PLC controller sets up in the left surface middle part of shrouding, and external power source, regulation and control device's normal operating are connected to the input electricity of PLC controller.
Further, pressure conduction mechanism includes first stopper, steel ball, gas pocket and second stopper, first stopper sliding connection is on the inside right side of installation drum, and second stopper sliding connection is on the inside left side of installation drum, and the steel ball all is located between first stopper and the second stopper, and the gas pocket is evenly seted up in the extrados left side of installation drum, can conduct the outside with the inside atmospheric pressure of boiler.
Further, pressure measurement mechanism includes air inlet, baroceptor and photoelectric sensing ware, the air inlet is seted up in the extrados middle part of fixed drum, and the lower extreme of air inlet passes through the trachea to be connected with the gas outlet of outside air pump, and baroceptor sets up in the round hole that fixed drum extrados middle part was seted up, and the photoelectric sensing ware passes through the mount pad and sets up in the extrados middle part of glass drum, and the input of PLC controller is connected to the equal electricity of output of baroceptor and photoelectric sensing ware, and the output of PLC controller is connected to the input electricity of outside air pump, can detect atmospheric pressure.
Furthermore, the air purifier also comprises an electromagnetic valve, wherein the electromagnetic valve is arranged in the air inlet to avoid the reverse flow of air in the air purifier.
Further, still include the alarm, the alarm sets up in the extrados left end of installation drum, and the output of PLC controller is connected to the input electricity of alarm, can indicate the staff.
Further, still include the fixed ring board, the fixed ring board sets up in the extrados right side of installation drum, and the left side off-plate of fixed ring board is opened and is equipped with evenly distributed's installation round hole, makes things convenient for the device to install in the user position.
Compared with the prior art, the beneficial effects of the utility model are that: the boiler internal pressure detector has the following advantages:
the right end of the installation cylinder is inserted into the boiler through the installation hole on the boiler, the device is fixed on the boiler through the installation round hole on the fixed ring plate, so that the installation of the device is realized, when the boiler is used, the internal pressure of the boiler is increased along with the increase of internal steam, the air pressure in the boiler pushes the first plug to slide leftwards along the inner cambered surface of the installation cylinder, the first plug pushes the second plug to slide leftwards synchronously through the steel ball, the second plug slides into the glass cylinder firstly and then continues to slide into the fixed cylinder, the second fixed ring can limit the position of the second plug, the second plug is prevented from continuously sliding rightwards, meanwhile, the first fixed ring can limit the moving position of the first plug, the first plug is prevented from sliding out of the installation cylinder rightwards, the right end of the installation cylinder is heated to expand the gas at the right end inside the installation cylinder, and the expanded gas can be discharged out of the device through the air hole, when the first plug and the second plug slide, the air hole is always positioned between the first plug and the second plug, the external air pump starts to work under the regulation and control of the PLC controller, the external air pump pumps compressed external air into the fixed cylinder so as to increase the air pressure in the fixed cylinder, the second plug pushes the right part to slide rightwards along with other increases in the fixed cylinder, meanwhile, the photoelectric sensor works, an optical signal emitted by an emitting end of the photoelectric sensor penetrates through the glass cylinder, when the second plug passes through, the second plug reflects the optical signal to the photoelectric sensor, a receiving end in the photoelectric sensor receives the optical signal, the photoelectric sensor transmits the detected quotation mark to the PLC controller in real time, and the PLC controller judges and integrates the received data until the PLC controller can stably receive the signal transmitted by the photoelectric sensor, it is in balanced state with this explanation second stopper post, the inside atmospheric pressure of fixed drum reaches unanimity with the inside atmospheric pressure of boiler, PLC controller regulation and control outside air pump stop work this moment, the solenoid valve is closed, baroceptor work, detect the inside atmospheric pressure of fixed drum, baroceptor transmits the atmospheric pressure signal that detects for the PLC controller, the PLC controller judges the data received, if the atmospheric pressure value is greater than the inside numerical value that sets for of PLC controller, PLC controller regulation and control alarm work, the alarm sends the police dispatch newspaper, remind staff's the inside atmospheric pressure of boiler too big, can conduct the inside atmospheric pressure of boiler to the outside, and simultaneously, can eliminate the condition that causes the inside air inflation of device because of high temperature at the in-process of conduction, make pressure detection part can detect the inside pressure of boiler in the boiler outside, reduce the influence of the inside high temperature high pressure steam of boiler to pressure detection part, the life of the improvement device, the degree of accuracy of detection is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional structural view of the present invention.
In the figure: the device comprises an installation cylinder 1, a glass cylinder 2, a fixed cylinder 3, a PLC 4, a first fixing ring 5, a pressure conduction mechanism 6, a first plug 61, a steel ball 62, an air hole 63, a second plug 64, a second fixing ring 7, a pressure detection mechanism 8, an air inlet 81, an air pressure sensor 82, a photoelectric sensor 83, an electromagnetic valve 9, an alarm 10 and a fixing ring plate 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present embodiment provides a technical solution: a boiler internal pressure detector comprises an installation cylinder 1, a pressure transmission mechanism 6 and a pressure detection mechanism 8;
mounting the cylinder 1: the installation cylinder 1 provides an installation place for other components, the left end of the installation cylinder is provided with a glass cylinder 2, the glass cylinder 2 is convenient for observing the inside of the device, the left end of the glass cylinder 2 is provided with a fixed cylinder 3, the left end opening of the fixed cylinder 3 is provided with a sealing plate, the sealing plate realizes the sealing of the device, the right end of the inside of the installation cylinder 1 is provided with a first fixing ring 5, the right end of the inside of the fixed cylinder 3 is provided with a second fixing ring 7, the second fixing ring 7 and the first fixing ring 5 limit the operation position of the device, the installation device further comprises a fixing ring plate 11, the fixing ring plate 11 is convenient for the installation of the device at the use position, the fixing ring plate 11 is arranged at the right side of the outer cambered surface of the installation cylinder 1, the outer side of the left side of the fixing ring plate 11 is externally provided with uniformly distributed installation round holes, the installation device further comprises a PLC 4, the PLC 4 regulates and controls the normal operation of the device, the PLC 4 is arranged in the middle of the left side of the sealing plate, and the input end of the PLC 4 is electrically connected with an external power supply;
the pressure transmission mechanism 6: the pressure conduction mechanism 6 can conduct the internal pressure of the boiler to the outside and is arranged at the left end of the installation cylinder 1, the first fixing ring 5 and the second fixing ring 7 are arranged in a matched mode with the pressure conduction mechanism 6, the pressure conduction mechanism 6 comprises a first plug 61, a steel ball 62, an air hole 63 and a second plug 64, the first plug 61 is connected to the right side of the inside of the installation cylinder 1 in a sliding mode, the second plug 64 is connected to the left side of the inside of the installation cylinder 1 in a sliding mode, the steel ball 62 is located between the first plug 61 and the second plug 64, the air hole 63 is evenly formed in the left side of the outer cambered surface of the installation cylinder 1, the right end of the installation cylinder 1 is inserted into the boiler through an installation hole in the boiler, the device is fixed on the boiler through an installation round hole in the fixing ring plate 11, installation of the device is achieved, when the boiler is used, along with increase of internal steam, the pressure inside the boiler is increased, the air pressure in the boiler pushes the first plug 61 to slide leftwards along the inner cambered surface of the installation cylinder 1, the first plug 61 pushes the second plug 64 to slide leftwards synchronously through the steel ball 62, the second plug 64 slides into the glass cylinder 2 firstly and then slides into the fixed cylinder 3 continuously, the second fixing ring 7 can limit the position of the second plug 64, the second plug 64 is prevented from sliding rightwards continuously, meanwhile, the first fixing ring 5 can limit the moving position of the first plug 61, the first plug 61 is prevented from sliding out of the installation cylinder 1 rightwards, the right end of the installation cylinder 1 is heated to expand the gas at the right end inside the installation cylinder 1, the expanded gas can be discharged out of the device through the gas hole 63, and when the first plug 61 and the second plug 64 slide, the gas hole 63 is always located between the first plug 61 and the second plug 64;
pressure detection mechanism 8: the pressure detection mechanism 8 can detect pressure and is respectively arranged in the middle of the outer arc surfaces of the fixed cylinder 3 and the glass cylinder 2, the pressure detection mechanism 8 is matched with the pressure conduction mechanism 6, the pressure detection mechanism 8 comprises an air inlet 81, an air pressure sensor 82 and a photoelectric sensor 83, the air inlet 81 is arranged in the middle of the outer arc surface of the fixed cylinder 3, the lower end of the air inlet 81 is connected with an air outlet of an external air pump through an air pipe, the air pressure sensor 82 is arranged in a round hole formed in the middle of the outer arc surface of the fixed cylinder 3, the photoelectric sensor 83 is arranged in the middle of the outer arc surface of the glass cylinder 2 through a mounting seat, the output ends of the air pressure sensor 82 and the photoelectric sensor 83 are electrically connected with the input end of the PLC controller 4, the input end of the external air pump is electrically connected with the output end of the PLC controller 4, the electromagnetic valve 9 is also included, the electromagnetic valve 9 is arranged in the air inlet 81, and the alarm 10 is also included, the alarm 10 is arranged at the left end of the outer arc surface of the installation cylinder 1, the input end of the alarm 10 is electrically connected with the output end of the PLC controller 4, an external air pump starts to work by regulation and control of the PLC controller 4, the external air pump pumps compressed external air into the fixed cylinder 3 so as to increase the air pressure in the fixed cylinder 3, along with other increases in the fixed cylinder 3, the second plug 64 pushes a right part to slide rightwards, meanwhile, the photoelectric sensor 83 works, an optical signal emitted by the emitting end of the photoelectric sensor 83 penetrates through the glass cylinder 2, when the second plug 64 passes through, the second plug 64 reflects the optical signal to the photoelectric sensor 83, the receiving end in the photoelectric sensor 83 receives the optical signal, the photoelectric sensor 83 transmits the detected guide number to the PLC controller 4 in real time, the PLC controller 4 performs integration judgment on the received data, until the PLC 4 can stably receive signals transmitted by the photoelectric sensor 83, it is described that the second plug 64 is in a balanced state, the air pressure inside the fixed cylinder 3 is consistent with the air pressure inside the boiler, at the moment, the PLC 4 regulates and controls the external air pump to stop working, the electromagnetic valve 9 is closed, the air pressure sensor 82 works to detect the air pressure inside the fixed cylinder 3, the air pressure sensor 82 transmits the detected air pressure signals to the PLC 4, the PLC 4 judges the received data, if the air pressure value is larger than a numerical value set inside the PLC 4, the PLC 4 regulates and controls the alarm 10 to work, the alarm 10 gives an alarm to remind a worker that the air pressure inside the boiler is too large.
The utility model provides a pair of boiler internal pressure detector's theory of operation as follows: the right end of the installation cylinder 1 is inserted into the boiler through an installation hole in the boiler, the device is fixed on the boiler through an installation round hole in the fixed ring plate 11, so that the installation of the device is realized, when the boiler is used, the internal pressure of the boiler is increased along with the increase of internal steam, the air pressure in the boiler pushes the first plug 61 to slide leftwards along the inner arc surface of the installation cylinder 1, the first plug 61 pushes the second plug 64 to slide leftwards synchronously through the steel ball 62, the second plug 64 slides into the glass cylinder 2 firstly and then continues to slide into the fixed cylinder 3, the second fixed ring 7 can limit the position of the second plug 64, the second plug 64 is prevented from sliding rightwards continuously, meanwhile, the first fixed ring 5 can limit the moving position of the first plug 61, the first plug 61 is prevented from sliding out of the installation cylinder 1 rightwards, the right end of the installation cylinder 1 is heated, so that gas at the right end in the installation cylinder 1 can expand, the expanded gas can be discharged out of the device through the air hole 63, when the first plug 61 and the second plug 64 slide, the air hole 63 is always positioned between the first plug 61 and the second plug 64, the external air pump starts to work through the regulation and control of the PLC controller 4, the external air pump compresses external air and pumps the compressed air into the fixed cylinder 3, so that the air pressure inside the fixed cylinder 3 is increased, the second plug 64 can push the right part to slide rightwards along with the other increase inside the fixed cylinder 3, meanwhile, the photoelectric sensor 83 works, an optical signal emitted by the emitting end of the photoelectric sensor 83 passes through the glass cylinder 2, when the second plug 64 passes through, the second plug 64 can reflect the optical signal to the photoelectric sensor 83, the receiving end inside the photoelectric sensor 83 can receive the optical signal, the photoelectric sensor 83 transmits the detected quotation mark to the PLC controller 4 in real time, the PLC controller 4 integrates and judges the received data until the PLC controller 4 can stably receive signals transmitted by the photoelectric sensor 83, so that the second plug 64 is in a balanced state, the air pressure inside the fixed cylinder 3 is consistent with the air pressure inside the boiler, at the moment, the PLC controller 4 regulates and controls an external air pump to stop working, the electromagnetic valve 9 is closed, the air pressure sensor 82 works to detect the air pressure inside the fixed cylinder 3, the air pressure sensor 82 transmits the detected air pressure signals to the PLC controller 4, the PLC controller 4 judges the received data, if the air pressure value is larger than a numerical value set inside the PLC controller 4, the PLC controller 4 regulates and controls the alarm 10 to work, the alarm 10 gives an alarm to remind a worker that the air pressure inside the boiler is too large.
It should be noted that, the specific model of the PLC controller 4 disclosed in the above embodiment is S7-200, the air pressure sensor 82 may be an air pressure sensor of model TL-182, the photoelectric sensor 83 may be a diffuse reflection type photoelectric sensor of model E3JM-DS70M4T, the electromagnetic valve 9 may be an electromagnetic valve of model SDF-0626L-12a63B, the alarm 10 may be an alarm of model KXB127-T, and the PLC controller 4 controls the air pressure sensor 82, the photoelectric sensor 83, the electromagnetic valve 9, the alarm 10 and the external air pump to operate by a method commonly used in the prior art.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims (7)

1. A boiler internal pressure detector, characterized in that: comprises an installation cylinder (1), a pressure conduction mechanism (6) and a pressure detection mechanism (8);
mounting cylinder (1): the left end of the glass cylinder (2) is provided with the glass cylinder, the left end of the glass cylinder (2) is provided with the fixed cylinder (3), the opening at the left end of the fixed cylinder (3) is provided with the sealing plate, the right end inside the installation cylinder (1) is provided with the first fixing ring (5), and the right end inside the fixed cylinder (3) is provided with the second fixing ring (7);
pressure transmission means (6): the first fixing ring (5) and the second fixing ring (7) are arranged at the left end of the mounting cylinder (1) in a matched manner;
pressure detection means (8): are respectively arranged in the middle of the outer cambered surfaces of the fixed cylinder (3) and the glass cylinder (2), and the pressure detection mechanism (8) is matched with the pressure transmission mechanism (6).
2. The boiler internal pressure detector as set forth in claim 1, wherein: still include PLC controller (4), PLC controller (4) set up in the left surface middle part of shrouding, and external power source is connected to the input electricity of PLC controller (4).
3. The boiler internal pressure detector as set forth in claim 1, wherein: pressure conduction mechanism (6) include first stopper post (61), steel ball (62), gas pocket (63) and second stopper post (64), first stopper post (61) sliding connection is on the inside right side of installation drum (1), and second stopper post (64) sliding connection is on the inside left side of installation drum (1), and steel ball (62) all are located between first stopper post (61) and second stopper post (64), and gas pocket (63) are evenly seted up on the extrados left side of installation drum (1).
4. The boiler internal pressure detector as set forth in claim 2, wherein: pressure detection mechanism (8) are including air inlet (81), baroceptor (82) and photoelectric sensing ware (83), air inlet (81) are seted up in the extrados middle part of fixed drum (3), and the lower extreme of air inlet (81) passes through the trachea and is connected with the gas outlet of outside air pump, and baroceptor (82) set up in the round hole of seting up in fixed drum (3) extrados middle part, and photoelectric sensing ware (83) set up in the extrados middle part of glass drum (2) through the mount pad, and the input of PLC controller (4) is all connected to the equal electricity of output of baroceptor (82) and photoelectric sensing ware (83), and the output of PLC controller (4) is connected to the input electricity of outside air pump.
5. The boiler internal pressure detector according to claim 4, wherein: still include solenoid valve (9), solenoid valve (9) set up in the inside of air inlet (81).
6. The boiler internal pressure detector according to claim 2, wherein: still include alarm (10), alarm (10) set up in the extrados left end of installation drum (1), and the output of PLC controller (4) is connected to the input electricity of alarm (10).
7. The boiler internal pressure detector according to claim 1, wherein: still include fixed crown plate (11), fixed crown plate (11) set up in the extrados right side of installation drum (1), and the left side off-plate of fixed crown plate (11) is opened and is equipped with evenly distributed's installation round hole.
CN202222642346.4U 2022-10-09 2022-10-09 Boiler internal pressure detector Active CN218271188U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222642346.4U CN218271188U (en) 2022-10-09 2022-10-09 Boiler internal pressure detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222642346.4U CN218271188U (en) 2022-10-09 2022-10-09 Boiler internal pressure detector

Publications (1)

Publication Number Publication Date
CN218271188U true CN218271188U (en) 2023-01-10

Family

ID=84751005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222642346.4U Active CN218271188U (en) 2022-10-09 2022-10-09 Boiler internal pressure detector

Country Status (1)

Country Link
CN (1) CN218271188U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116105919A (en) * 2023-04-13 2023-05-12 淄博市特种设备检验研究院 Industrial boiler internal inspection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116105919A (en) * 2023-04-13 2023-05-12 淄博市特种设备检验研究院 Industrial boiler internal inspection device

Similar Documents

Publication Publication Date Title
CN218271188U (en) Boiler internal pressure detector
CN201340329Y (en) Pressure testing device of power station valve
CN110567657A (en) Hydrogen leakage monitoring method for hydrogen energy locomotive
CN2932374Y (en) SF6 intelligent environment monitoring and control system and its SF6 laser detector
CN207966153U (en) A kind of combustible gas detecting device
CN218720705U (en) Offshore booster station shore-based remote heating and ventilation device with leakage self-checking function
CN209229756U (en) It is a kind of to detect the safety device for improving heat accumulation type thermal oxidation furnace based on LEL
CN207962117U (en) Gas leakage detection device
CN109026845B (en) Oil leakage detection and protection device for fan stationary blade adjusting hydraulic device
CN212301507U (en) Gas concentration calibration testing machine
CN112067571A (en) Gas concentration calibration testing machine
CN209623813U (en) A kind of system improving deaerator level measurement accuracy
CN201600238U (en) Balanced valve test device
CN210831916U (en) Methanation waste heat boiler system
CN201311421Y (en) Intelligent reducing annealing furnace gas analyzer
CN208968607U (en) It is a kind of with can anti-theft gaseous air inlet monitor system
CN211716873U (en) Gas heat conduction oil furnace on-line electric heating heat compensation heater
CN208420300U (en) A kind of digitlization display suction gun system for single-point leak detection
CN209927373U (en) Portable hydrogen leak detector
CN201258989Y (en) Electric backflow preventer
CN110207090A (en) A kind of intelligent high-efficiency rate gas-steam boiler
CN207552681U (en) The automatically controlled hydrophobic pipeline structure of steam baking tube
CN208155386U (en) One kind being based on wireless intelligent gas kilowatt meter reading-out system
CN214841720U (en) Energy-saving consumption-reducing boiler water supply device
CN220475952U (en) Pretreatment heating assembly of dust concentration measuring instrument

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: No. 609, Floor 6, North Tower, Greenland Twin Towers, West Dongfeng East Road and South Kangping Road, Zhengzhou District (Zhengdong), Henan Pilot Free Trade Zone, 450000, Henan

Patentee after: Zhongheyi Testing Technology Co.,Ltd.

Address before: No. 609, Floor 6, North Tower, Greenland Twin Towers, West Dongfeng East Road and South Kangping Road, Zhengzhou District (Zhengdong), Henan Pilot Free Trade Zone, 450000, Henan

Patentee before: Henan Zhongheyi Testing Technology Co.,Ltd.