Thermoelectric ash level meter measuring device
By integrating the ash level gauge device of the thermal power unit into the DCS system using a servo motor to drive the wire rope and photoelectric transceiver, the problem of susceptibility to interference and high failure rate of the level gauge in dusty environments is solved, thus achieving the reliability and accuracy of the device and reducing ash leakage.
Patent Information
- Application Number
- CN202423131346.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing level gauges are susceptible to interference in dusty environments, mechanical level gauges have a high failure rate, cannot be integrated into DCS systems, and the measuring holes on the top of the silo are prone to dust leakage.
The ash level gauge device of the thermoelectric part is adopted. The steel wire rope is wound by a drum driven by a servo motor. Combined with photoelectric transceiver and magnetic switch, it is integrated into the DCS system to reduce the field equipment. The steel wire rope and the weight system are used to measure the powder level. The design of the measuring hole on the top of the silo is improved to reduce ash leakage.
This improved the reliability and accuracy of the level gauge, reduced the failure rate and environmental impact, and ensured the safe operation of the equipment.
Smart Images
Figure CN223636935U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the ash level meter measurement field of thermal power department, especially a kind of ash level meter measurement device of thermal power department. BACKGROUND
[0002] Currently mainly used ash level meter on device is radar material level meter, ultrasonic material level meter, capacitive material level meter, steel band type mechanical material level meter, steel wire rope type mechanical material level meter etc..Radar material level meter, ultrasonic material level meter class exist easy dust interference measurement inaccuracy problem, capacitive material level meter exist installation, replacement difficult problem, steel band type mechanical material level meter, steel wire rope type mechanical material level meter exist high mechanical part failure rate, cannot be operated on DCS, need to set up separate secondary table etc.Problems.The utility model mainly carries out optimization to the defects existing in mechanical material level meter currently.
[0003] Develop ash level meter measurement device of thermal power department, can effectively reduce field circuit board equipment, mechanical equipment, indoor secondary table etc.Equipment, reduce intermediate link and failure rate;Control, display are integrated to control system, can reduce the influence of the relatively bad environment in field to instrument equipment, increase the reliability, stability and accuracy of material level meter operation, to ensure the safety production of device;While improving warehouse top measuring hole, reduce the influence of ash powder leakage to environment. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of ash level meter measurement device of thermal power department to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] An ash level meter measurement device of thermal power department, including powder bin, the powder bin one side is provided with field equipment box, further including the servo motor installed in the field equipment box, servo motor output end is installed with reel, the reel is wound with steel wire rope, the powder bin top end is installed with warehouse top sealing equipment, the steel wire rope passes through the warehouse top sealing equipment and enters the powder bin, the steel wire rope end is installed with weight, the warehouse top sealing equipment is installed with magnetic switch, there are a plurality of fixed pulley and a movable pulley between the reel and the weight, for guiding the steel wire rope trend, the reel is provided with photoelectric transceiver, the servo motor one side is provided with tension measuring device, the movable pulley is installed on the tension measuring device, and DCS system is arranged away from the field equipment box, and control signal is transmitted between the field equipment box and the DCS system through signal cable.
[0007] Further, the fixed pulleys are provided with three, at least one of which is arranged above the silo top sealing device, to ensure that the steel wire rope is vertically through the silo top sealing device under the gravity of the weight.
[0008] Further, the steel wire rope and the weight are connected by binding, facilitating disassembly and maintenance.
[0009] Compared with the prior art, the beneficial effects are:
[0010] 1. The field circuit board equipment, mechanical equipment, indoor secondary meter and other equipment are effectively reduced, and the intermediate links and failure rate are reduced.
[0011] 2. The control and display are integrated into the control system, the influence of the relatively harsh environment on the instrument equipment is reduced, the reliability, stability and accuracy of the material level meter are increased, and the safety production of the device is ensured.
[0012] 3. The silo top measuring hole is improved, and the influence of ash leakage on the environment is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the thermal power ash material level meter measuring device.
[0014] In the figure, 1 is a weight, 2 is a fixed pulley, 3 is a movable pulley, 4 is a steel wire rope, 5 is a servo motor, 6 is a tension measuring device, 7 is a field equipment box, 8 is a signal cable, 9 is a DCS system, 10 is a magnetic switch, 11 is a silo top sealing device, 12 is a powder silo, 13 is a winding drum, and 14 is an optical transceiver. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0016] Please refer to Figure 1The utility model provides a kind of thermoelectric department ash level gauge measuring device, including powder bin 12, powder bin 12 side is provided with field device box 7, further including servo motor 5 installed in field device box 7, servo motor 5 output end is installed with reel 13, steel wire rope 4 is wound on reel 13, powder bin 12 top end is installed with bin top sealing equipment 11, steel wire rope 4 passes through bin top sealing equipment 11 and enters powder bin 12, steel wire rope 4 end is installed with heavy hammer 1, bin top sealing equipment 11 is installed with magnetic switch 10, there are a plurality of fixed pulley 2 and a movable pulley 3 between reel 13 to heavy hammer 1, for guiding the direction of steel wire rope 4, photoelectric transceiver 14 is provided on reel 13, servo motor 5 side is provided with tension measuring device 6, movable pulley 3 is installed on tension measuring device 6, DCS system 9 is provided away from field device box 7, and control signal is transmitted between field device box 7 and DCS system 9 by signal cable 8.
[0017] Further: fixed pulley 2 is provided with three, at least one is set in bin top sealing equipment 11 directly above, guarantee that steel wire rope 4 is vertically passed through bin top sealing equipment 11 under the gravity of heavy hammer 1;Steel wire rope 4 and heavy hammer 1 are bound connection, easy to disassemble and maintain.
[0018] Working principle: relevant signal is detected by DCS system 9 and sends control instruction, is transmitted to field device box 7 by signal cable 8, controls servo motor 5 drive reel 13 rotation and releases steel wire rope 4, steel wire rope 4 is pulled under the gravity of heavy hammer 1, passes through bin top sealing equipment 11 by fixed pulley 2 and movable pulley 3 and goes down, in the whole action process, photoelectric transceiver 14 gathers and measures the release length of steel wire rope 4, when heavy hammer 1 touches the powder in powder bin 12, steel wire rope 4 is slack, movable pulley 3 pulls the tension of tension measuring device 6 to reduce, DCS system 9 judges to position, steel wire rope 4 release length is locked, servo motor 5 drive reel 13 reverse, and steel wire rope 4 is wound back, and is recovered to certain length, touches magnetic switch 10, and is recovered to position, and servo motor 5 stops rotation.
[0019] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A thermoelectric department ash level gauge measuring device comprising a powder bin (12) provided with a field device box (7) on one side, characterized in that: It also includes a servo motor (5) installed in the field device box (7), the servo motor (5) output end is installed with a winding drum (13), the winding drum (13) is wound with a steel wire rope (4), the powder bin (12) top end is installed with a bin top sealing device (11), the steel wire rope (4) passes through the bin top sealing device (11) into the powder bin (12), the steel wire rope (4) end head is installed with a weight (1), the bin top sealing device (11) is installed with a magnetic switch (10), a plurality of fixed pulleys (2) and a movable pulley (3) are distributed between the winding drum (13) and the weight (1), used for guiding the steel wire rope (4) to go to the way, the winding drum (13) is provided with an optical transceiver (14), one side of the servo motor (5) is provided with a tension measuring device (6), the movable pulley (3) is installed on the tension measuring device (6), a DCS system (9) is arranged away from the field device box (7), and the field device box (7) and the DCS system (9) are transmitted through a signal cable (8) Control signal.
2. A thermoelectric plant ash level gauge measuring device according to claim 1, characterized in that: The fixed pulley (2) is provided with three, at least one is arranged above the bin top sealing device (11).
3. A thermoelectric ash level gauge measuring device according to claim 1, characterized in that: The steel wire rope (4) and the weight (1) are bound and connected.