Capacitive water level gauge for waste heat boiler

Abstract

The utility model relates to the technical field of boiler water level monitoring, and discloses a capacitance type water level gauge for a waste heat boiler, which comprises a boiler body and a measuring cylinder arranged on one side of the boiler body, a protection assembly is sleeved on the outer surface of an electric appliance box, and an operator can respectively sleeve a first transparent round cover and a second round cover on two sides of the outer wall of the electric appliance box. Then, a first transparent round cover is pressed, so that an elastic element and a round clamping ball are driven by inserting rods fixedly mounted on the periphery of one end of the first transparent round cover to be mounted in an inner cavity of a hollow cylinder, and the round clamping ball is clamped into an inner cavity of a through groove to be fixed under the elastic force action of the elastic element; therefore, the first transparent round cover and the second round cover are arranged on the outer surface of the electric appliance box for protection, the safety of daily use of the electric appliance box can be improved through the arrangement of the first transparent round cover and the second round cover, and normal reading of the electric appliance box is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler water level monitoring, in particular to a capacitive water level meter used for a waste heat boiler. Background Art

[0002] Waste heat boiler refers to a boiler that uses the waste heat in waste gas, waste materials or waste liquid in various industrial processes and the heat generated by the combustion of combustible materials to heat water to a certain working fluid. The capacitive level gauge is based on the principle of capacitive induction. When the height of the measured medium soaking the measuring electrode changes, its capacitance changes. It can convert the changes in the height of various material and liquid media into standard current signals, which are transmitted to the operation control room for centralized display, alarm or automatic control by secondary instruments or computer devices. By installing the capacitive water level gauge on the waste heat boiler, the water level of the drum inside the waste heat boiler can be measured.

[0003] For example, a capacitance water level device for a boiler with application number CN202321978558.8 comprises a steam side port and a water side port respectively provided at the upper and lower ends of one side of the outer wall of the container, and a sewage outlet provided at the bottom end of the other side. A metal rod is installed at the bottom end of the inner wall of the container, and a transmitter is installed at the bottom end of the metal rod through a transfer tube. The structure eliminates the situation where the water level error is large under complex working conditions; in principle, the two long instrument tubes are eliminated to reduce the failure rate and maintenance costs, especially in winter, which no longer requires a lot of time and labor costs; the addition of electrical signal remote transmission and alarm devices greatly reduces the workload of inspection personnel, improves work efficiency, and greatly increases safety. Improving the accuracy of continuous water level monitoring ensures the smooth operation of the boiler, and simplifying the structure reduces winter maintenance costs.

[0004] At present, when the existing capacitance water level gauge is installed on the boiler for use, part of the data of the capacitance water level gauge is displayed through a capacitance box, and the capacitance box is usually arranged at the lower end of the measuring tube. During daily work and use, the capacitance box is easily knocked and has low protection.

[0005] Therefore, we propose a capacitive water level meter for waste heat boiler in order to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a capacitive water level gauge for a waste heat boiler, so as to solve the problem proposed in the above background technology that part of the data of the capacitive water level gauge is displayed through a capacitor box, and the capacitor box is usually arranged at the lower end of the measuring tube. During daily work and use, the capacitor box is easily knocked and has low protection.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a capacitive water level gauge for a waste heat boiler, comprising a boiler body and a measuring tube arranged on one side of the boiler body, a vapor phase port is arranged on one side of the upper end of the measuring tube, a liquid phase port is arranged on one side of the lower end of the measuring tube, a sewage outlet is arranged on the other side of the lower end of the measuring tube, the middle part of the lower end of the measuring tube is connected to an electrical box through a connecting piece, the outer surface of the electrical box is sleeved with a protective component, and the protective component is suitable for protecting the electrical box;

[0008] The protection component comprises a card embedding mechanism and a winding mechanism fixedly installed at one end of the outer wall of the card embedding mechanism, and the winding mechanism is suitable for arranging the wire harness connected to the electrical box.

[0009] Preferably, the embedding mechanism comprises a first transparent round cover and an insertion rod fixedly mounted around one end of the first transparent round cover.

[0010] Preferably, an elastic element is fixedly mounted on one side of the upper end of the insertion rod, and a round clamping ball is fixedly mounted on the upper end of the elastic element.

[0011] Preferably, a second round cover is arranged on one side of the first transparent round cover, a hollow cylinder is fixedly installed around one end of the second round cover, and a through groove is opened on one side of the upper end of the hollow cylinder.

[0012] Preferably, the winding mechanism comprises a concave upright block and a connecting rod fixedly mounted on one side of the lower end of the outer wall of the concave upright block.

[0013] Preferably, an open solid block is fixedly mounted on the upper end of one side of the inner wall of the concave upright block, and a second open solid block is fixedly mounted on the lower end of the other side of the inner wall of the concave upright block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The operator can respectively sleeve the first transparent round cover and the second round cover on both sides of the outer wall of the electrical box, so that the insertion rod fixedly installed around one end of the first transparent round cover drives the elastic element and the round card ball to be installed into the inner cavity of the hollow cylinder, and the first transparent round cover and the second round cover are arranged on the outer surface of the electrical box for protection without affecting the normal reading of the electrical box.

[0016] 2. Wrap the wiring harness connected to the electrical box around the open solid block to organize the wiring harness on the rear side of the electrical box, so that when problems occur in the electrical box, the corresponding circuit wiring harness can be repaired in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0021] In the figure: 1. boiler body; 2. measuring cylinder; 3. vapor phase port; 4. liquid phase port; 5. sewage outlet; 6. electrical box; 7. protective assembly; 71. snap-fit ​​mechanism; 711. first transparent round cover; 712. insertion rod; 713. elastic element; 714. round card ball; 715. second round cover; 716. hollow cylinder; 717. through groove; 72. winding mechanism; 721. concave upright block; 722. connecting rod; 723. open solid block; 724. second open solid block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-Figure 3 A capacitive water level gauge for a waste heat boiler comprises a boiler body 1 and a measuring tube 2 arranged on one side of the boiler body 1, a vapor phase port 3 is arranged on one side of the upper end of the measuring tube 2, a liquid phase port 4 is arranged on one side of the lower end of the measuring tube 2, a sewage outlet 5 is arranged on the other side of the lower end of the measuring tube 2, an electrical box 6 is connected to the middle part of the lower end of the measuring tube 2 through a connecting piece, and a protective component 7 is provided on the outer surface of the electrical box 6, and the protective component 7 is suitable for protecting the electrical box 6.

[0024] The protection component 7 includes a card embedding mechanism 71 and a winding mechanism 72 fixedly installed on one end of the outer wall of the card embedding mechanism 71. The winding mechanism 72 is suitable for arranging the wire harness connected to the electrical box 6.

[0025] The locking mechanism 71 includes a first transparent round cover 711 and an insertion rod 712 fixedly installed around one end of the first transparent round cover 711. The first transparent round cover 711 is arranged to allow an operator to observe data displayed on the electrical box 6 and protect the electrical box 6 at the same time.

[0026] An elastic element 713 is fixedly mounted on one side of the upper end of the insertion rod 712 , and a round clamping ball 714 is fixedly mounted on the upper end of the elastic element 713 .

[0027] A second round cover 715 is provided on one side of the first transparent round cover 711, and a hollow cylinder 716 is fixedly installed around one end of the second round cover 715. A through groove 717 is opened on one side of the upper end of the hollow cylinder 716. The insertion rod 712 drives the elastic element 713 and the round clamping ball 714 to be movably installed in the inner cavity of the hollow cylinder 716. The round clamping ball 714 is movably installed in the inner cavity of the through groove 717 under the elastic force of the elastic element 713.

[0028] In this embodiment: the operator can respectively sleeve the first transparent round cover 711 and the second round cover 715 on both sides of the outer wall of the electrical box 6, and then press the first transparent round cover 711 so that the insertion rod 712 fixedly installed around one end of the first transparent round cover 711 drives the elastic element 713 and the round card ball 714 to be installed into the inner cavity of the hollow cylinder 716, so that the round card ball 714 is clamped into the inner cavity of the through groove 717 for fixation under the elastic force of the elastic element 713, thereby completing the first transparent round cover 711 and the second round cover 715 being set on the outer surface of the electrical box 6 for protection. The setting of the first transparent round cover 711 and the second round cover 715 can improve the safety of daily use of the electrical box 6 without affecting the normal reading of the electrical box 6.

[0029] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 4 The winding mechanism 72 includes a concave upright block 721 and a connecting rod 722 fixedly installed on one side of the lower end of the outer wall of the concave upright block 721.

[0030] An open solid block 723 is fixedly installed on the upper end of one side of the inner wall of the concave upright block 721, and a second open solid block 724 is fixedly installed on the lower end of the other side of the inner wall of the concave upright block 721. The setting of the open solid block 723 and the second open solid block 724 is suitable for winding and limiting the wire harness.

[0031] In this embodiment: since a connecting rod 722 is fixedly installed on one end of the outer wall of the second round cover 715, and a concave upright block 721 is fixedly installed on one end of the connecting rod 722, the operator can wrap the wiring harness connected to the electrical box 6 around the open solid block 723 to regularize the wiring harness on the rear side of the electrical box 6, so as to facilitate timely repair of the corresponding circuit wiring harness when a problem occurs in the electrical box 6.

[0032] Working principle: The operator can respectively sleeve the first transparent round cover 711 and the second round cover 715 on both sides of the outer wall of the electrical box 6, and then press the first transparent round cover 711, so that the insertion rod 712 fixedly installed around one end of the first transparent round cover 711 drives the elastic element 713 and the round card ball 714 to be installed into the inner cavity of the hollow cylinder 716, so that the round card ball 714 is clamped into the inner cavity of the through groove 717 under the elastic force of the elastic element 713 for fixing, thereby completing the first transparent round cover 711 and the second round cover 715 being arranged in The outer surface of the electrical box 6 is protected. The first transparent round cover 711 and the second round cover 715 are provided to improve the safety of the electrical box 6 in daily use without affecting the normal reading of the electrical box 6. Since a connecting rod 722 is fixedly installed at one end of the outer wall of the second round cover 715, and a concave upright block 721 is fixedly installed at one end of the connecting rod 722, the operator can wrap the wiring harness connected to the electrical box 6 around the open solid block 723, so as to be suitable for regularizing the wiring harness on the rear side of the electrical box 6, so as to facilitate timely repair of the corresponding circuit wiring harness when there is a problem with the electrical box 6.

[0033] The connection between the capacitive water level gauge and the waste heat boiler and the working principle thereof are clear to those skilled in the art and will not be described in detail herein.

[0034] It should be noted that the waste heat boiler and the capacitive water level gauge are equipped with core components that can support the normal operation of the waste heat boiler and the capacitive water level gauge. These core components are not an innovative part of the present application document, but are common knowledge. Those skilled in the art are capable of thinking of the specific structure and structural layout.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A capacitive water level gauge for a waste heat boiler, comprising a boiler body (1) and a measuring tube (2) arranged on one side of the boiler body (1), a vapor phase port (3) being arranged on one side of the upper end of the measuring tube (2), a liquid phase port (4) being arranged on one side of the lower end of the measuring tube (2), a sewage outlet (5) being arranged on the other side of the lower end of the measuring tube (2), and an electrical box (6) being connected to the middle portion of the lower end of the measuring tube (2) via a connecting piece, characterized in that: The outer surface of the electrical appliance box (6) is provided with a protective component (7), and the protective component (7) is suitable for protecting the electrical appliance box (6); The protection component (7) comprises a snap-in mechanism (71) and a winding mechanism (72) fixedly mounted on one end of an outer wall of the snap-in mechanism (71); the winding mechanism (72) is suitable for arranging a wire harness connected to the electrical box (6).

2. The capacitive water level gauge for a waste heat boiler according to claim 1, characterized in that: The locking mechanism (71) comprises a first transparent round cover (711) and an insertion rod (712) fixedly mounted around one end of the first transparent round cover (711).

3. The capacitive water level gauge for a waste heat boiler according to claim 2, characterized in that: An elastic element (713) is fixedly mounted on one side of the upper end of the insertion rod (712), and a round locking ball (714) is fixedly mounted on the upper end of the elastic element (713).

4. The capacitive water level gauge for a waste heat boiler according to claim 3, characterized in that: A second round cover (715) is provided on one side of the first transparent round cover (711), a hollow cylinder (716) is fixedly mounted around one end of the second round cover (715), and a through groove (717) is provided on one side of the upper end of the hollow cylinder (716).

5. The capacitive water level gauge for a waste heat boiler according to claim 1, characterized in that: The winding mechanism (72) comprises a concave upright block (721) and a connecting rod (722) fixedly mounted on one side of the lower end of the outer wall of the concave upright block (721).

6. A capacitive water level gauge for a waste heat boiler according to claim 5, characterized in that: An open solid block (723) is fixedly mounted on the upper end of one side of the inner wall of the concave upright block (721), and a second open solid block (724) is fixedly mounted on the lower end of the other side of the inner wall of the concave upright block (721).

Images