CN213600278U

CN213600278U - Automatic overpressure alarm device for high-pressure steam curing of tubular pile

Info

Publication number: CN213600278U
Application number: CN202022470669.0U
Authority: CN
Inventors: 李娟科; 杨升华; 张弛; 刘巍; 王敏; 孟强
Original assignee: Ningxiang Ninghua New Material Co ltd
Current assignee: Ningxiang Ninghua New Material Co ltd
Priority date: 2020-10-31
Filing date: 2020-10-31
Publication date: 2021-07-02
Anticipated expiration: 2030-10-31

Abstract

The utility model provides a tubular pile high pressure steam maintenance superpressure autoalarm, including thrust device, trigger device and alarm, thrust device includes urceolus and case, urceolus one end opening and with steam intercommunication, the case is located in the urceolus and slides along the urceolus axis, still is equipped with expanding spring in the urceolus, is located the other end of urceolus, is equipped with the feeler lever on the case, and the case receives the trigger device contact on atmospheric pressure promotion messenger feeler lever and the urceolus inner wall to press down the back start alarm. This scheme simple structure, operation facility, the effectual excessive problem of pressure in the steam pool of having avoided is convenient for adjust the internal pressure of pond simultaneously, avoids appearing the incident, and then the effectual effect and the quality that have improved tubular pile steam maintenance are convenient for to tubular pile mass production.

Description

Automatic overpressure alarm device for high-pressure steam curing of tubular pile

Technical Field

The utility model relates to a tubular pile production maintenance technique, especially a tubular pile high pressure steam maintenance superpressure autoalarm.

Background

In the production process of the PHC tubular pile, primary steam curing is a very important production process link, and the national standard 'pretensioned prestressed concrete tubular pile' is definitely specified: when the prestressed reinforcement is placed in tension, the concrete compressive strength of the prestressed high-strength concrete pipe pile is not lower than 40 MPa. In actual production, the compressive strength of concrete when the tubular pile is demolded is controlled to be 45-65 MPa. The steam curing effect not only directly influences the demolding strength of the tubular pile concrete, but also influences the final strength of the tubular pile concrete. The following are the notes in the steam curing stage of the tubular pile: 1. before the steam-curing pool is used, whether the air valve leaks or not and whether the bottom of the pool is flat or not are checked, and if condensed water exists, the condensed water needs to be pumped by a water pump. 2. When the pipe is molded into the pool, collision is strictly prohibited, the pipe is large at the bottom and small at the top as much as possible, and the inner hole of the tail plate of the pipe mold is prevented from directly facing the air nozzle so as to prevent the inner wall concrete from being damaged by high-speed steam. 3. The steam curing process generally comprises four stages of standing still, heating, constant temperature and cooling, and is strictly executed according to the standard established by the technical department, and written notice is given by a laboratory when adjustment is needed. 4. The steam-pressure heating speed is not too fast, generally about 35 ℃/h, the temperature fluctuation range in the constant temperature stage is reduced as much as possible, the temperature is checked every 15min, and the air input is adjusted. 5. The tank cover needs to be sealed by water, and the temperature of the upper part and the lower part in the tank need to be consistent. The sealed water tank must not be damaged. 6. Making relevant records, recording the temperature once every 0.5h in the temperature rise stage, recording the temperature once every 1h in the constant temperature stage, carrying out supervision and inspection by quality inspection, and strictly forbidding opening the cover of the tank in advance. 7. The thermometer needs to be checked regularly, and the thermometer needs to be replaced in time when the error exceeds the standard. 8. The user is advised to proceed according to the steam curing system: and (3) canceling the standing, heating to 8-10 ℃ 30min before the heating stage, then heating to 16-22 ℃ every half hour, heating to 90-95 ℃ for 1.5 hours, keeping the temperature for 2 hours and 45 minutes, and keeping the whole steam curing time for 4 hours and 45 minutes. The steam curing effect is good or bad (the time is conservative, and the pool is not easy to open in advance), and the final strength of the tubular pile concrete is directly influenced. Therefore, the majority of users operate according to the standard when using the still kettle to steam and preserve the tubular pile, and the tubular pile is ensured to reach the national requirement standard.

Therefore, in the steam curing process, the temperature and the pressure in the steam pool are very important, but the condition of steam pressure overpressure often appears in the processing process, the condition of steam pressure overpressure cannot be known, the effect of steam curing is directly influenced, and the problem which needs to be solved at present is urgently solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned not enough of prior art, and providing a tubular pile high pressure steam maintenance superpressure autoalarm convenient to in time adjust pressure in the steam pool, avoid the superpressure, improve the tubular pile maintenance effect, improve safe in utilization.

The technical scheme of the utility model is that: the utility model provides a tubular pile high pressure steam maintenance superpressure autoalarm, includes thrust device, trigger device and alarm, thrust device includes urceolus and case, urceolus one end opening and with steam intercommunication, the case is located in the urceolus and slides along the urceolus axis, still is equipped with expanding spring in the urceolus, is located the other end of urceolus, is equipped with the feeler lever on the case, and the case receives atmospheric pressure promotion messenger feeler lever and the trigger device on the urceolus inner wall to contact and presses the back and start the alarm.

The advantage of this scheme lies in, in the use, install this alarm device on the steam pit, when pressure in the steam pit exceeded the pressure of settlement, atmospheric pressure in the steam pit promoted the case and removed to make case trigger alarm device's start, remind the staff to need decompress to the pressure in the steam pit, after the warning is relieved at the in-process of decompression, explain during pressure has returned the pressure scope of settlement, can effectual improvement steam is to the maintenance effect of tubular pile, avoid the superpressure to influence the production quality of tubular pile.

Further, the trigger device comprises an elastic sheet and a contact piece, and the elastic sheet is electrically connected with the contact piece through a pressing contact piece of the contact rod.

Furthermore, a battery is arranged in the valve core, the contact rod is connected with the positive electrode of the battery, the negative electrode of the battery is connected with the alarm through a lead, and the other end of the alarm is connected with the trigger device through a lead.

Furthermore, the trigger device is a conductor gasket, and an insulator is arranged between the gasket and the outer barrel.

Furthermore, the alarm is an audible and visual alarm.

Furthermore, an elastic sealing gasket is arranged at one end of the outer barrel communicated with the steam.

Further, a through hole communicated with the atmosphere is formed in the outer barrel. When the valve core moves, the detection effect of the steam pressure in the pool caused by the increase of the air pressure in the outer cylinder is avoided, and the influence of the air pressure in the outer cylinder on the valve core is avoided.

Further, the outer barrel comprises an upper barrel body and a lower barrel body, and the upper barrel body is in threaded connection with the lower barrel body. The maintenance convenience of the alarm device is facilitated.

The utility model has the characteristics of as follows: this scheme simple structure, operation facility, the effectual excessive problem of pressure in the steam pool of having avoided is convenient for adjust the internal pressure of pond simultaneously, avoids appearing the incident, and then the effectual effect and the quality that have improved tubular pile steam maintenance are convenient for to tubular pile mass production.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a trigger device;

fig. 3-is another schematic structural diagram of the present invention;

1-outer cylinder, 2-feeler lever, 3-spring, 4-trigger device, 5-lead, 6-alarm, 7-pool, 8-elastic sealing gasket, 9-contact piece, 10-elastic sheet, 11-insulator, 12-gasket and 13-battery.

Detailed Description

As shown in the attached drawings: the utility model provides a tubular pile high pressure steam maintenance superpressure autoalarm, including thrust device, trigger device 4 and alarm 6, thrust device includes urceolus 1 and case, 1 one end opening of urceolus and communicate with steam, the case is located 1 interior and slide along 1 axis of urceolus, still be equipped with expanding spring 3 in the urceolus 1, be located the other end of urceolus 1, be equipped with feeler lever 2 on the case, the case receives the trigger device 4 contact on atmospheric pressure promotion messenger feeler lever 2 and the 1 inner wall of urceolus to press back start alarm 6, alarm 6 is audible-visual annunciator 6, can send the reputation simultaneously in the use, be convenient for remind the excessive condition of operating personnel pressure in the pond 7, the operating personnel of being convenient for in time.

This scheme is in the use, install this alarm device on steam pit 7, when the pressure in steam pit 7 exceeded the pressure of settlement, the atmospheric pressure in steam pit 7 promotes the valve core and removes, thereby make the start-up of valve core trigger alarm device, remind the staff to need decompress to the pressure in steam pit 7, after the warning is relieved at the in-process of decompression, explain that pressure has already returned among the pressure range of settlement, can effectual improvement steam to the maintenance effect of tubular pile, avoid the production quality that the superpressure influences the tubular pile.

In the embodiment, the trigger device 4 comprises an elastic sheet 10 and a contact 9, and the contact 9 is in contact with and electrically connected with the elastic sheet 10 when pressed. Preferably, the elastic sheet 10 is connected with one end of the alarm 6 through a lead 5, the other end of the alarm 6 is connected with the contact member 9 through the lead 5, and both the elastic sheet 10 and the contact member 9 are conductors; the valve core receives the promotion that atmospheric pressure promoted in the use, makes feeler lever 2 promote elastic sheet 10 and move toward contact 9, and contact 9 is connected with elastic sheet 10 contact electricity, and feeler lever 2 is insulator 11, and then makes alarm 6 send out the police dispatch newspaper, reminds the excessive condition of operating personnel pond 7 internal pressure, is convenient for in time carry out the pressure release to the internal pressure in pond 7.

In another embodiment, a battery 13 is arranged in the valve core, a lithium battery 13 is used as the electromagnet, the feeler lever 2 is connected with the positive electrode of the battery 13, the negative electrode of the battery 13 is connected with the alarm 6 through a lead 5, and the other end of the alarm 6 is connected with the trigger device 4 through the lead 5. Preferably, the trigger device 4 is a conductive gasket 12, and an insulator 11 is arranged between the gasket 12 and the outer cylinder 1.

In the embodiment, one end of the outer barrel 1 communicated with the steam is provided with an elastic sealing gasket 8, the sealing gasket can completely block the end, contacted with the steam, of the outer barrel 1, and meanwhile, the elastic sealing gasket has certain elasticity, so that the sealing gasket can be pushed by the air pressure to push the valve core outwards. Preferably, the outer cylinder 1 is provided with a through hole communicating with the atmosphere. When the valve core moves, the detection effect of the steam pressure in the pool 7 is prevented from being influenced by the increase of the air pressure in the outer cylinder 1, and the influence of the air pressure in the outer cylinder 1 on the valve core is avoided. More preferably, the outer cylinder 1 comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are in threaded connection. The maintenance convenience of the alarm device is facilitated.

This scheme simple structure, operation facility, the effectual excessive problem of pressure of 7 steam ponds of having avoided is convenient for adjust 7 internal pressures in the pond simultaneously, avoids appearing the incident, and then the effectual effect and the quality that have improved tubular pile steam maintenance are convenient for to tubular pile mass production.

The above description is the preferred embodiment of the present invention and the technical principle applied by the preferred embodiment, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes based on the equivalent transformation, simple replacement, etc. of the technical solution of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a tubular pile high pressure steam maintenance superpressure autoalarm, includes thrust device, trigger device and alarm, its characterized in that: the pushing device comprises an outer barrel and a valve core, one end of the outer barrel is open and communicated with steam, the valve core is arranged in the outer barrel and slides along the axis of the outer barrel, a telescopic spring is further arranged in the outer barrel and located at the other end of the outer barrel, a touch rod is arranged on the valve core, and the valve core is pushed by air pressure to enable the touch rod to be in contact with a trigger device on the inner wall of the outer barrel to press and then start an alarm.

2. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 1, characterized in that: the trigger device comprises an elastic sheet and a contact piece, and the elastic sheet is electrically connected with the contact piece through a pressing contact piece of the contact rod.

3. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 1, characterized in that: the valve core is internally provided with a battery, the feeler lever is connected with the positive electrode of the battery, the negative electrode of the battery is connected with the alarm through a lead, and the other end of the alarm is connected with the trigger device through a lead.

4. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 3, characterized in that: the trigger device is a conductor gasket, and an insulator is arranged between the gasket and the outer barrel.

5. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 4, characterized in that: the alarm is an audible and visual alarm.

6. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 5, characterized in that: and an elastic sealing gasket is arranged at one end of the outer barrel communicated with the steam.

7. The automatic tubular pile high-pressure steam curing overpressure alarm device of claim 6, characterized in that: the outer barrel is provided with a through hole communicated with the atmosphere.

8. The automatic alarm device for tubular pile high-pressure steam curing overpressure according to any one of claims 1-7, characterized in that: the outer barrel comprises an upper barrel body and a lower barrel body, and the upper barrel body is in threaded connection with the lower barrel body.