Natural gas high-low pressure alarm device for refractory brick kiln

Abstract

The utility model relates to the technical field of pressure detection, in particular to a natural gas high-low pressure alarm device for a refractory brick kiln. According to the technical scheme, the device comprises a pipe body, a piston and a barrel, the barrel is arranged on the pipe body in a sliding mode, a base plate is arranged at the bottom end of the barrel and makes elastic contact with the top end of the inner wall of the pipe body, an isolating membrane is arranged on the lower surface of the base plate, the annular edge of the isolating membrane is fixed to the top end of the inner wall of the pipe body, and a sealing plate is arranged at the top end of the barrel. A piston is arranged in the barrel in a sliding mode, the piston is elastically connected with the sealing plate, and a first alarm and a second alarm are arranged on the upper surface of the sealing plate. According to the utility model, the structures are controlled to move cooperatively under the action of pressure through cooperation among the structures, so that the on-off state of each circuit is controlled, and personnel are reminded of the pressure state in the gas pipeline in time.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection, in particular to a natural gas high and low pressure alarm device for a refractory brick kiln. Background Art

[0002] Refractory materials are generally divided into two types, namely, unshaped refractory materials and shaped refractory materials. Unshaped refractory materials, also called castables, are mixed powder particles composed of multiple aggregates or aggregates and one or more binders. When used, they must be mixed with one or more liquids to be evenly mixed and have strong fluidity. Shaped refractory materials generally refer to refractory bricks, which have standard shapes and can also be temporarily processed when building and cutting according to needs.

[0003] A kiln or furnace is a furnace used to fire ceramics and sculptures or to fuse enamel to the surface of metal objects. It is usually made of bricks and stones. It can be made into various sizes according to needs and can be operated by combustible gas, oil or electricity.

[0004] The existing refractory brick kiln device uses a pressure dial to observe the gas pressure of the natural gas used in the brick kiln. Since the staff cannot always pay attention to the value of the pressure dial, excessive or insufficient natural gas pressure will affect the normal operation of the kiln, and when the gas pressure of the natural gas transmission pipeline is too high or too low, the operator cannot detect the abnormality in time.

[0005] For this reason, we propose a natural gas high and low pressure alarm device for refractory brick kilns to solve the existing problems. Utility Model Content

[0006] The utility model aims to solve the problems existing in the background technology and proposes a natural gas high and low pressure alarm device for a refractory brick kiln.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas high and low pressure alarm device for a refractory brick kiln, comprising:

[0008] A tube body, a piston and a cylinder, wherein the tube body is slidably provided with a cylinder, the bottom end of the cylinder is provided with a chassis, the chassis is elastically in contact with the top end of the inner wall of the tube body, an isolation membrane is provided on the lower surface of the chassis, the ring edge of the isolation membrane is fixed to the top end of the inner wall of the tube body, a sealing plate is provided on the top end of the cylinder, a piston is slidably provided in the cylinder, the piston is elastically connected to the sealing plate, and a first alarm and a second alarm are provided on the upper surface of the sealing plate.

[0009] Preferably, the

[0010] The upper surface of the chassis is symmetrically provided with outer springs through bolts, and the top ends of the outer springs are fixed to the top ends of the inner walls of the tube bodies through bolts.

[0011] Preferably, the

[0012] The upper surface of the chassis is symmetrically provided with moving contacts;

[0013] The top of the inner wall of the tube body is symmetrically provided with static contacts, and the moving contact and the static contact are both located in the isolation membrane;

[0014] The moving contact and the static contact are electrically connected to the first alarm.

[0015] Preferably, the

[0016] A guide plate is installed on the upper surface of the cylinder, and contact blocks are symmetrically arranged on the guide plate;

[0017] The lower surface of the sealing plate is symmetrically connected to the touch rod, an inner spring is installed at the middle position of the lower surface of the sealing plate, and the bottom end of the inner spring is installed on the upper surface of the piston;

[0018] The contact block and the contact rod are electrically connected to the second alarm.

[0019] Preferably, the

[0020] A through hole matched with the piston is provided on the chassis, and the piston is slidably arranged in the through hole.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] 1. During the use of the utility model natural gas high and low pressure alarm device for refractory brick kilns, the device can be installed on a designated natural gas transmission pipeline. When the natural gas pressure in the pipeline is in a normal state, the natural gas pressure presses the moving contact and the static contact to contact each other, and the first alarm works normally at this time;

[0023] 2. When the natural gas pressure in the pipeline is too low and is insufficient to resist the elastic force of the external spring, the chassis moves downward under the elastic force of the external spring, thereby separating the moving contact and the static contact from each other, causing the first alarm to stop working, thereby notifying personnel that the natural gas pressure in the pipeline is too low;

[0024] 3. When the natural gas pressure in the pipeline is too high, the natural gas pressure presses the piston upward. At this time, the inner spring is compressed to generate elastic force, and the piston moves upward so that the contact block contacts the contact rod. The circuit is in a connected state, and the second alarm is controlled to emit different alarm sounds to remind personnel that the pressure here is too high. When personnel take measures to control the pressure to reduce, the piston moves down and resets automatically under the elastic force of the inner spring;

[0025] 4. Through the design of the isolation membrane, the deformable characteristics of the isolation membrane ensure that the inside of the isolation membrane and the outside of the isolation membrane are in a separated state without affecting the up and down movement of the chassis. The design of the piston can prevent natural gas from entering the cylinder and avoid safety hazards caused by contact with electric sparks;

[0026] 5. The utility model controls the structure to move in coordination under the action of pressure, thereby controlling the on-off state of each circuit and promptly reminding personnel of the pressure state inside the gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0028] Figure 2 It is a side view structural schematic diagram of the utility model;

[0029] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0030] Figure 4 For the utility model Figure 3 Schematic diagram of the cross-sectional structure.

[0031] Reference numerals:

[0032] 1. Tube body; 2. Isolation membrane; 3. Guide plate; 4. Piston; 5. Contact block; 6. Moving contact; 7. Static contact; 8. Cylinder body; 9. Sealing plate; 10. First alarm; 11. Inner spring; 12. Second alarm; 13. Touch rod; 14. Outer spring; 15. Chassis. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1

[0035] like Figure 1-Figure 4 As shown, the utility model proposes a natural gas high and low pressure alarm device for a refractory brick kiln, comprising:

[0036] A tube body 1, a piston 4 and a cylinder 8, wherein the cylinder 8 is slidably provided on the tube body 1, a bottom plate 15 is provided at the bottom end of the cylinder 8, the bottom plate 15 is elastically in contact with the top end of the inner wall of the tube body 1, an isolation membrane 2 is provided on the lower surface of the bottom plate 15, the ring edge of the isolation membrane 2 is fixed to the top end of the inner wall of the tube body 1, a sealing plate 9 is provided on the top end of the cylinder 8, a piston 4 is slidably provided in the cylinder 8, the piston 4 is elastically connected to the sealing plate 9, and a first alarm 10 and a second alarm 12 are provided on the upper surface of the sealing plate 9.

[0037] Based on Example 1:

[0038] The device can be installed on a designated natural gas transmission pipeline. When the natural gas pressure in the pipeline is in a normal state, the natural gas pressure presses the moving contact 6 and the static contact 7 to contact each other, and the first alarm 10 works normally at this time;

[0039] When the natural gas pressure in the pipeline is too low, the natural gas pressure is insufficient to resist the elastic force of the outer spring 14, and the chassis 15 moves downward under the elastic force of the outer spring 14, so that the moving contact 6 and the static contact 7 are separated from each other, and the first alarm 10 stops working, thereby notifying the personnel that the natural gas pressure in the pipeline is too low;

[0040] When the natural gas pressure in the pipeline is too high, the natural gas pressure presses the piston 4 upward. At this time, the inner spring 11 is compressed to generate elastic force, and the piston 4 moves upward so that the contact block 5 contacts the contact rod 13. The circuit is in a connected state, and the second alarm 12 is controlled to emit different alarm sounds to remind personnel that the pressure here is too high. When the personnel take measures to control the pressure to reduce, the piston 4 moves downward and automatically resets under the elastic force of the inner spring 11.

[0041] Through the design of the isolation membrane 2, the deformable characteristics of the isolation membrane 2 ensure that the inside of the isolation membrane 2 and the outside of the isolation membrane 2 are in a separated state without affecting the up and down movement of the chassis 15. The design of the piston 4 can prevent natural gas from entering the cylinder 8 and avoid safety hazards caused by contact with electric sparks.

[0042] Embodiment 2

[0043] like Figure 1-Figure 4 As shown, the utility model proposes a natural gas high and low pressure alarm device for a refractory brick kiln. Compared with the first embodiment, this embodiment also includes:

[0044] The upper surface of the chassis 15 is symmetrically provided with an outer spring 14 by bolts, and the top of the outer spring 14 is fixed to the top of the inner wall of the tube body 1 by bolts;

[0045] The upper surface of the chassis 15 is symmetrically provided with moving contacts 6;

[0046] The top of the inner wall of the tube body 1 is symmetrically provided with a static contact 7, and the moving contact 6 and the static contact 7 are both located in the isolation membrane 2;

[0047] The moving contact 6 and the stationary contact 7 are electrically connected to the first alarm 10 .

[0048] When the natural gas pressure in the pipeline is too low and is insufficient to resist the elastic force of the outer spring 14, the chassis 15 moves downward under the elastic force of the outer spring 14, thereby separating the moving contact 6 and the static contact 7 from each other, causing the first alarm 10 to stop working, thereby notifying the personnel that the natural gas pressure in the pipeline is too low.

[0049] Through the design of the isolation membrane 2, the deformable characteristics of the isolation membrane 2 ensure that the inside of the isolation membrane 2 and the outside of the isolation membrane 2 are in a separated state without affecting the up and down movement of the chassis 15. The design of the piston 4 can prevent natural gas from entering the cylinder 8 and avoid safety hazards caused by contact with electric sparks.

[0050] Embodiment 3

[0051] like Figure 1-Figure 4 As shown, the utility model proposes a natural gas high and low pressure alarm device for a refractory brick kiln. Compared with the first embodiment, this embodiment also includes:

[0052] A guide plate 3 is installed on the upper surface of the cylinder 8, and contact blocks 5 are symmetrically arranged on the guide plate 3;

[0053] The lower surface of the sealing plate 9 is symmetrically provided with a touch rod 13, an inner spring 11 is installed at the middle position of the lower surface of the sealing plate 9, and the bottom end of the inner spring 11 is installed on the upper surface of the piston 4;

[0054] The contact block 5 , the contact rod 13 and the second alarm device 12 are electrically connected.

[0055] When the natural gas pressure in the pipeline is too high, the natural gas pressure presses the piston 4 upward. At this time, the inner spring 11 is compressed to generate elastic force, and the piston 4 moves upward so that the contact block 5 contacts the contact rod 13. The circuit is in a connected state, and the second alarm 12 is controlled to emit different alarm sounds to remind personnel that the pressure here is too high. When the personnel take measures to control the pressure to decrease, the piston 4 moves down and resets automatically under the elastic force of the inner spring 11.

[0056] Embodiment 4

[0057] like Figure 1-Figure 4 As shown, the utility model proposes a natural gas high and low pressure alarm device for a refractory brick kiln. Compared with the first embodiment, this embodiment also includes:

[0058] The chassis 15 is provided with a through hole matched with the piston 4, and the piston 4 is slidably arranged in the through hole.

[0059] Through the cooperation of the above structure, natural gas under high pressure squeezes the position of the piston 4 through the perforation.

[0060] It should be noted that the alarm structure is an existing mature technology, and its working principle and internal structure are known to technicians in the relevant technical field. The utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here, and technicians in this field can make any optional adjustments according to their needs or convenience.

[0061] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A natural gas high and low pressure alarm device for a refractory brick kiln, comprising a pipe body (1), a piston (4) and a cylinder (8), characterized in that: A cylinder (8) is slidably provided on the tube body (1), a bottom end of the cylinder (8) is provided with a bottom plate (15), the bottom plate (15) is in elastic contact with the top end of the inner wall of the tube body (1), an isolation membrane (2) is provided on the lower surface of the bottom plate (15), the annular edge of the isolation membrane (2) is fixed to the top end of the inner wall of the tube body (1), a sealing plate (9) is provided on the top end of the cylinder (8), a piston (4) is slidably provided in the cylinder (8), the piston (4) is elastically connected to the sealing plate (9), and a first alarm (10) and a second alarm (12) are provided on the upper surface of the sealing plate (9).

2. A natural gas high and low pressure alarm device for a refractory brick kiln according to claim 1, characterized in that: An outer spring (14) is symmetrically provided on the upper surface of the chassis (15) via bolts, and the top end of the outer spring (14) is fixed to the top end of the inner wall of the tube body (1) via bolts.

3. A natural gas high and low pressure alarm device for a refractory brick kiln according to claim 1, characterized in that: The upper surface of the chassis (15) is symmetrically provided with moving contacts (6); The top end of the inner wall of the tube body (1) is symmetrically provided with static contacts (7), and the moving contacts (6) and the static contacts (7) are both located inside the isolation membrane (2); The moving contact (6) and the stationary contact (7) are electrically connected to the first alarm (10).

4. A natural gas high and low pressure alarm device for a refractory brick kiln according to claim 1, characterized in that: A guide plate (3) is installed on the upper surface of the cylinder (8), and contact blocks (5) are symmetrically arranged on the guide plate (3); The lower surface of the sealing plate (9) is symmetrically provided with a touch rod (13); an inner spring (11) is installed at a middle position of the lower surface of the sealing plate (9); and the bottom end of the inner spring (11) is installed on the upper surface of the piston (4); The contact block (5), the contact rod (13) and the second alarm (12) are electrically connected.

5. The natural gas high and low pressure alarm device for a refractory brick kiln according to claim 1 is characterized in that: The bottom plate (15) is provided with a through hole matched with the piston (4), and the piston (4) is slidably arranged in the through hole.

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