CN215984987U

CN215984987U - High-precision pressure detection instrument for gasification furnace

Info

Publication number: CN215984987U
Application number: CN202120441723.0U
Authority: CN
Inventors: 王云峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2022-03-08
Anticipated expiration: 2031-03-01

Abstract

The utility model provides a high-precision pressure detection instrument of a gasification furnace, which comprises a meter shell, a fixed pipe and a joint, wherein the fixed pipe is welded at the bottom of the meter shell, and under the matching use of the fixed pipe, the joint, the protective pipe, a first spring, a second spring and a ventilation opening, the spring force of the second spring is utilized to match the fixed pipe and the joint to buffer the high-temperature and high-pressure inside the gasification furnace, so that the direct vibration and impact force brought to the high-precision pressure gauge by the pressure are reduced, the normal operation of a pointer in the high-precision pressure gauge is prevented from being influenced, and the high-precision pressure gauge is prevented from being greatly interfered by the vibration or pressure impact even if the pressure gauge is in the environment of vibration and pressure impact for a long time, and the inaccurate recording and measurement caused by the violent vibration of the pointer in the pressure gauge are ensured.

Description

High-precision pressure detection instrument for gasification furnace

Technical Field

The utility model relates to the technical field of detection instruments, in particular to a high-precision pressure detection instrument for a gasification furnace.

Background

A high-precision pressure detecting instrument is used for detecting pressure, however, the existing high-precision pressure detecting instrument has poor protective performance, because the temperature and the pressure are in direct proportion under the sealing condition of a gasification furnace, when the temperature fluctuation in the gasification furnace is overlarge, the correspondingly generated pressure is also larger, when the gasification furnace generates overhigh temperature in use, the air pressure in the gasification furnace is also increased, when the air pressure is increased to the maximum value, the gas upwards supports along the inner part of the gasification furnace, so that a pressure gauge connected with the gasification furnace is easy to damage and vibrate, the measuring result of the high-precision pressure gauge has errors, and when a connector of the gasification furnace is connected with a pipeline, because the internal pressure is overlarge, the connector is enlarged, so that the sealing performance is poor, the water seepage phenomenon easily occurs, the measuring errors of the high-precision pressure gauge are further influenced, and simultaneously, because the high-precision pressure gauge and an isolating device are fixed by adopting threaded connection, the leakproofness effect between the screw thread is not very good, and at the screw thread rotation in-process many times, can produce certain wearing and tearing between external screw thread and the internal thread, leads to the leakproofness between precision pressure gauge and the isolating device to descend, inside the external gas enters into the isolating device from the thread clearance easily for precision pressure gauge has great error when carrying out pressure measurement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-precision pressure detecting instrument for a gasification furnace, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-precision pressure detection instrument of a gasification furnace comprises a meter shell, a fixed pipe, a joint and a protective pipe, wherein the fixed pipe is welded at the bottom of the meter shell, the joint is in threaded connection with the joint, the protective pipe is sleeved at the bottom of the joint, a lining ring is fixedly installed on the inner wall of the meter shell, a plurality of ventilation openings are formed in the outer wall of the meter shell, a pointer is installed inside the meter shell, a cover plate is nested at the upper end of the lining ring, scales are fixedly installed on the outer side of the pointer, a movement is fixedly installed inside the meter shell, a hairspring is fixedly installed on the outer edge of the movement, a gear shaft is fixedly installed in the middle of the movement, the movement is coaxially connected with the gear shaft, a connecting rod is fixedly installed on the outer side of the movement, the pointer and the connecting rod are inserted in the middle of the gear shaft, a spring pipe is fixedly connected above the connecting rod, and an air bag is nested at the tail part of the spring pipe, the air bag is nested on the joint and the inner wall of the fixed pipe.

Further, the ventilation openings are distributed at equal intervals along the outer wall of the watch case, and the diameter of each ventilation opening is 0.5 mm.

Further, the air bag slides up and down along the inside of the joint and the fixed pipe, and the spring pipe stretches up and down along the inside of the watch case through the air bag.

Furthermore, an adjusting screw is fixedly installed between the two connecting rods, and the connecting rods are fixedly installed with the spring tube through the adjusting screw.

Furthermore, two anti-collision columns are fixedly mounted below the scales.

Furthermore, the spring tube penetrates through the middle of the fixed tube and the joint and is fixedly connected with the air bag.

Furthermore, the joint and the two sides of the inner wall of the fixed pipe are provided with two symmetrically distributed second springs in an embedded mode, the inner wall of the protective pipe is provided with the first springs, and the outer wall of the protective pipe is provided with a plurality of triangular bulges made of rubber materials.

The utility model provides a high-precision pressure detection instrument for a gasification furnace, which has the following beneficial effects:

(1) this a vaporizing furnace high accuracy pressure measurement instrument, through fixed pipe, connect, the protecting tube, first spring, the second spring, under the cooperation of vent was used, the fixed pipe of spring force cooperation and the joint that utilizes the second spring are cushioned the inside high-temperature high-pressure of vaporizing furnace, direct vibrations and the impact force that the high accuracy manometer brought are given to the reduction pressure, avoid influencing the pointer normal function in the high accuracy manometer, secondly even the manometer is in vibrations and pressure shock's environment for a long time, avoid vibrations or pressure shock to produce great interference to the high accuracy manometer, it can not appear violent vibrations and lead to the record to measure inaccurately to have guaranteed the pointer in the manometer.

(2) This a gasification burner high accuracy pressure measurement instrument, through the protecting tube, the second spring, connect, the cooperation use down, the protruding first spring of triangle form that is provided with a plurality of rubber material through the protecting tube outer wall uses, the protruding rubber material of triangle form utilizes the elasticity of first spring and connects the inner wall and closely laminate, avoid gasification burner inside gas leakage, when making its gasification burner produce vibrations or pressure shock, vibrations or pressure shock can be acted on the protecting tube, and because the protecting tube is that the mechanical strength that the hose was made is lower, can not continue to transmit vibrations or pressure shock to the high accuracy manometer in, furthermore, the normal operating of high accuracy manometer has been guaranteed, the life and the leakproofness of high accuracy manometer have been improved, and then reduce the error of high accuracy manometer when measuring.

(3) This a gasification burner high accuracy pressure measurement instrument, through the gasbag, the spring pipe, the connecting rod, under the complex use of pointer, enlarge and the displacement through core cooperation spring pipe, utilize the inside pressure of gasbag cooperation gasification furnace, make its gasbag atmospheric pressure volume grow, make the inside atmospheric pressure of spring pipe diminish, gasbag and spring pipe are inside and external to form the pressure difference, the spring pipe outwards expands when being greater than the inside pressure effect of gasification furnace, it gets into in the spring pipe under atmospheric pressure effect to adduction gas when being less than the inside pressure effect of gasification furnace, make spring pipe cooperation gasbag measure the inside atmospheric pressure of gasification furnace.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the whole internal cross section of the present invention.

FIG. 3 is a schematic side sectional view of the watch case of the present invention.

FIG. 4 is a schematic view of the connection of the fixing tube and the protection tube

In the figure: 1. a watch case; 2. a gasket; 3. calibration; 4. a cover plate; 5. a movement; 6. a gear shaft; 7. a pointer; 8. a fixed tube; 9. a joint; 10. a protective tube; 11. a first spring; 12. a balance spring; 13. a spring tube; 14. an impact post; 15. a connecting rod; 16. adjusting the screw; 17. a second spring; 18. a vent; 19. an air bag.

Detailed Description

As shown in fig. 1 to 4, the present invention provides a technical solution: a high-precision pressure detecting instrument of a gasification furnace comprises a meter shell 1, a fixed pipe 8, a joint 9, a protective pipe 10, the fixed pipe 8 is welded at the bottom of the meter shell 1, the joint 9 is connected with the fixed pipe 8 by screw threads, the protective pipe 10 is sleeved at the bottom of the joint 9, a lining ring 2 is fixedly installed on the inner wall of the meter shell 1, a plurality of ventilation openings 18 are arranged on the outer wall of the meter shell 1, a pointer 7 is installed inside the meter shell 1, a cover plate 4 is nested at the upper end of the lining ring 2, a scale 3 is fixedly installed on the outer side of the pointer 7, a movement 5 is fixedly installed inside the meter shell 1, a hairspring 12 is fixedly installed on the outer edge of the movement 5, a gear shaft 6 is fixedly installed in the middle of the movement 5, the movement 5 is coaxially connected with the gear shaft 6, a connecting rod 15 is fixedly installed on the outer side of the movement 5, the pointer 7 and the connecting rod 15 are spliced in the middle of the gear shaft 6, a spring pipe 13 is fixedly connected with a spring pipe 13, and an air bag 19 is nested at the tail part of the spring pipe, the air bag 19 is nested on the joint 9 and the inner wall of the fixed pipe 8.

Wherein, the vent 18 is equidistantly distributed along the outer wall of the watchcase 1, the diameter of the vent 18 is 0.5mm, so that the vent 18 is matched with the watchcase 1 to radiate the gas generated in the gasification furnace, and simultaneously, the gasification furnace generates water vapor due to high temperature to permeate into the watchcase 1.

Wherein, gasbag 19 slides from top to bottom along joint 9 and the inside of fixed pipe 8, spring pipe 13 carries out upper and lower extension through gasbag 19 along the watchcase 1 inside, when receiving great pressure in spring pipe 13, spring pipe 13 is the circular by oval inflation, forces spring pipe 13 outwards to extend, and the pressure is higher, and the extension is bigger, and then cooperates pointer 7 to detect the inside atmospheric pressure of gasification furnace.

Wherein, an adjusting screw 16 is fixedly installed between the two connecting rods 15, the connecting rod 15 is fixedly installed with the spring tube 13 through the adjusting screw 16, so that the connecting rod 15 can move under the condition that the spring tube 13 is pressurized, and the rotating rod 15 can drive the adjusting screw 16 to move while moving.

Wherein, scale 3 below fixed mounting has two bumping posts 14, makes its pointer 7 cooperation bumping post 14 avoid pointer 7 to receive the too big and drop of pressure.

Wherein, the spring tube 13 runs through the fixed tube 8 and the middle part of the joint 9 and is fixedly connected with the air bag 19, so that the spring tube 13 is matched with the air bag 19 and the joint 9 and the fixed tube 8 for use, thereby preventing the vibration and the pressure impact force generated by the gasification furnace under high temperature and high pressure from being directly transmitted to the pressure gauge.

Wherein, connect 9 and the nested second spring 17 that is provided with two bisymmetry distributions in fixed 8 inner wall both sides of pipe, 10 inner walls of protective tube are provided with first spring 11, and the protective tube 10 outer wall is provided with the triangle-shaped arch of a plurality of rubber material, make its second spring 17 and the fixed 8 of first spring 11 cooperation and protective tube 10 use, receive vibrations and pressure shock with fixed pipe 8 and weaken, ensure that the manometer can not produce great interference to pressure shock power, the protruding cooperation protective tube 10 of triangle-shaped of rubber material uses simultaneously, seal the inside gas of protective tube 10 and fixed pipe 8, prevent disappointing, improve the accuracy that the gasification burner pressure record was surveyed.

In use, firstly, air pressure enters the air bag 19 inside the joint 9 and the fixed pipe 8 from the protective pipe 10 at the bottom of the watch case 1, the spring pipe 13 is hollow, so that the gasification furnace fills the air bag 19 and transmits the air pressure to the inside of the spring pipe 13, when the spring pipe 13 is subjected to high air pressure, the spring pipe 13 expands from an oval shape to a round shape, the spring pipe 13 is forced to extend outwards, the higher the pressure applied to the spring pipe 13 is, the larger the extension is, the action is transmitted to the pointer 7 through the connecting rod 15, the gear shaft 6 and the adjusting screw 16, and the pointer 7 rotates to indicate the pressure inside the gasification furnace. When no pressure exists in the vaporizing furnace, the spring tube 13 is restored to the original shape, the pointer 7 returns to the zero position, the air generated in the vaporizing furnace is radiated at equal intervals along the outer wall of the meter shell 1 through the ventilation opening 18, the vaporizing furnace forms convection with the outside air when water vapor is generated at high temperature, the water vapor is effectively prevented from permeating into the meter shell 1, the pressure inside the vaporizing furnace is accurately detected by the high-precision pressure gauge, the air bag 19 is matched with the pressure inside the vaporizing furnace again, the air pressure volume of the air bag 19 is increased, the air pressure inside the spring tube 13 is reduced, the pressure difference is formed between the air bag 19 and the inside of the spring tube 13 and the outside, the air enters the spring tube 13 under the action of the air pressure, the spring tube 13 is matched with the pointer 7 to measure the pressure inside the vaporizing furnace, the spring force of the second spring 17 is matched with the fixing tube 8 and the joint 9 to buffer the pressure generated inside the vaporizing furnace again, because the protective tube 10 is made of a hose, the mechanical strength is low, the vibration or pressure impact cannot be directly transmitted to the high-precision pressure gauge, when the gasification furnace generates vibration or pressure impact, the vibration or pressure impact can act on the protective tube 10, the first spring 11 can effectively disperse the pressure in the gasification furnace, further, the large interference of the vibration or pressure impact on the high-precision pressure gauge is avoided, the inaccurate recording and measurement caused by the violent vibration of the pointer 7 in the high-precision pressure gauge are avoided, the protective tube 10 is provided with a plurality of rubber triangular bulges on the outer wall thereof and is sleeved with the fixed tube 8 and the joint 9, the protective tube 10 is tightly attached to the inner wall of the joint 9 by the elasticity of the first spring 11, the gas leakage in the gasification furnace is avoided, the normal operation of the high-precision pressure gauge is ensured, the service life and the sealing performance of the high-precision pressure gauge are improved, and further reduce the error of the high-precision pressure gauge during measurement.

Claims

1. The utility model provides a gasification burner high accuracy pressure measurement instrument, includes watchcase (1), fixed pipe (8), connects (9), protective tube (10), its characterized in that: the bottom of the watch case (1) is welded with a fixed pipe (8), the fixed pipe (8) is in threaded connection with a joint (9), a protective pipe (10) is sleeved at the bottom of the joint (9), a lining ring (2) is fixedly mounted on the inner wall of the watch case (1), a plurality of ventilation openings (18) are formed in the outer wall of the watch case (1), a pointer (7) is mounted inside the watch case (1), a cover plate (4) is nested on the upper end of the lining ring (2), scales (3) are fixedly mounted on the outer side of the pointer (7), a movement (5) is fixedly mounted inside the watch case (1), hairsprings (12) are fixedly mounted on the outer edge of the movement (5), a gear shaft (6) is fixedly mounted in the middle of the movement (5), the movement (5) is coaxially connected with the gear shaft (6), and a connecting rod (15) is fixedly mounted on the outer side of the gear shaft (5), pointer (7) and connecting rod (15) are inserted in the middle of movement (5) and gear shaft (6), spring tube (13) is fixedly connected to the upper portion of connecting rod (15), air bag (19) is arranged at the other end of spring tube (13) in an embedded mode, and air bag (19) is embedded in connector (9) and fixed tube (8).

2. The high accuracy pressure gauge of claim 1, wherein: the ventilation openings (18) are distributed along the outer wall of the watchcase (1) at equal intervals, and the diameter of each ventilation opening (18) is 0.5 mm.

3. The high accuracy pressure gauge of claim 1, wherein: the air bag (19) slides up and down along the joint (9) and the inner part of the fixed pipe (8), and the spring pipe (13) stretches up and down along the inner part of the watchcase (1) through the air bag (19).

4. The high accuracy pressure gauge of claim 1, wherein: an adjusting screw (16) is fixedly installed between the two connecting rods (15), and the connecting rods (15) are fixedly installed with the spring tubes (13) through the adjusting screws (16).

5. The high accuracy pressure gauge of claim 1, wherein: two anti-collision columns (14) are fixedly mounted below the scales (3).

6. The high accuracy pressure gauge of claim 1, wherein: the spring tube (13) penetrates through the middle parts of the fixed tube (8) and the joint (9) and is fixedly connected with the air bag (19).

7. The high accuracy pressure gauge of claim 1, wherein: the connector (9) and the two sides of the inner wall of the fixed pipe (8) are provided with second springs (17) which are symmetrically distributed in pairs in an embedded mode, the inner wall of the protective pipe (10) is provided with a first spring (11), and the outer wall of the protective pipe (10) is provided with a plurality of triangular bulges made of rubber materials.