CN210092199U

CN210092199U - Device for avoiding leakage caused by underground battery explosion

Info

Publication number: CN210092199U
Application number: CN201821590409.3U
Authority: CN
Inventors: 冯建宇; 李轶武
Original assignee: BEIJING LIUHE GREATNESS TECHNOLOGY Co Ltd
Current assignee: BEIJING LIUHE GREATNESS TECHNOLOGY CO LTD
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-02-18
Anticipated expiration: 2028-09-28

Abstract

The utility model provides an avoid battery explosion in pit to arouse device of revealing, characterized by the device is including lower end cap, pressure release valve body and sealing rubber circle, wherein the end cap provides the mounted position down, pressure release valve body installs under on the end cap, lower end cap and the external threaded connection of relief valve, be provided with the sealing washer between end cap and the pressure release valve body, pressure release valve body release pressure when the battery explodes, sealing rubber circle is used for the instrument to seal, when the battery explodes, in time release falls the high-pressure gas that the battery explosion produced, avoid battery nipple joint explosion to hinder the people, simultaneously this device still can be when battery explosion in the pit, the inside and outside pressure of balanced battery section of thick bamboo, avoid the battery section of thick bamboo to break and lead to whole cluster.

Description

Device for avoiding leakage caused by underground battery explosion

Technical Field

The utility model relates to an underground well drilling instrument especially relates to an avoid battery explosion in the pit to arouse device and corresponding battery nipple joint of revealing.

Background

In the oil drilling process, the directional drilling technology is more and more widely applied, and an MWD (measurement while drilling) instrument can ensure that the instrument is carried out according to a preset borehole track in the drilling process. The measurement while drilling instrument is divided into a wired instrument and a wireless instrument, wherein the wireless instrument while drilling is the mainstream in the market, the operation of the underground instrument of the wireless instrument while drilling needs enough power supply support, and the current power supply for the underground instrument mainly adopts the following modes: the power supply system comprises a battery and a slurry generator, wherein the battery is used for supplying power, and the battery power supply mode is a main power source of underground wireless equipment due to the characteristics of simple structure, easiness in maintenance, strong universality and the like. At present, a high-temperature-resistant lithium battery is mainly adopted in the underground battery, the battery has high energy density, the size of an instrument is reduced as much as possible while the capacity of the battery is ensured, and the applicability of the instrument is ensured. However, as the energy density of the battery is higher, the instability of the battery is higher, and the battery is likely to explode when problems such as vibration impact, short circuit, high-temperature impact, defects of the battery and the like occur, so that the safety of field personnel is endangered.

SUMMERY OF THE UTILITY MODEL

The utility model discloses exerting oneself in solving the not enough that above-mentioned prior art exists, providing a device that avoids battery explosion in the pit to arouse and reveal, the device installs on the end cap under original battery, when the battery explodes, in time releases the high-pressure gas that the battery explosion produced, avoids battery nipple joint explosion to hinder the people, and this device still can be when battery explosion in the pit simultaneously, and balanced battery section of thick bamboo internal and external pressure avoids the battery section of thick bamboo to break and leads to whole cluster MWD instrument to scrap.

The utility model provides an avoid battery explosion in pit to arouse device of revealing, characterized by the device is including lower end cap, pressure release valve body and sealing rubber circle, and wherein the end cap provides the mounted position down, and pressure release valve body installs on the end cap down, lower end cap and the external threaded connection of relief valve, are provided with the sealing washer down between end cap and the pressure release valve body, and pressure release valve body releases pressure when the battery explodes, and sealing rubber circle is used for the instrument to seal.

Furthermore, the pressure relief valve body consists of a valve seat, a valve cover, a spring and a valve core.

Further, the valve cover is provided with a hexagonal pressure relief hole, and pressure is released when the battery explodes.

Further, a sealing rubber ring is arranged between the pressure relief valve body and the lower plug.

Further, the pressure relief valve body needs to adjust the spring force, and the pressure needs to meet the following requirements: a. the pressure can press the valve core 7 in the mounting hole of the lower plug 1, and b. the pressure can enable the sealing rubber ring 3 to achieve enough deformation, so that pressure sealing is realized, c. the pressure is not too large, and when the internal pressure is required to be greater than the external pressure, the internal pressure can push the valve core 7 to open and release pressure.

Furthermore, the through hole in the top end of the valve cover is made into a hexagonal hole for screwing the pressure relief valve body when the lower plug is installed.

The utility model also provides a battery nipple joint including above-mentioned characteristic.

Compared with the prior art, the beneficial effects of the utility model are embodied in: 1. the utility model discloses increase the pressure release function in traditional structure, can release the pressure that the battery explosion produced in the twinkling of an eye, avoid the battery section of thick bamboo explosion. 2. The utility model discloses set up the sealing washer, have higher one-way sealing characteristic, can not reduce the bearing capacity of original structure. 3. The utility model discloses can resume original encapsulated situation after pressure release, avoid mud to pour into and lead to the instrument to damage. 4. The utility model discloses simple to operate, repeatedly usable.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

Fig. 1 is an assembly diagram of the present invention.

Fig. 2 is a schematic view of a pressure relief valve body.

Fig. 3 is a schematic sealing diagram of the present invention.

Fig. 4 is the schematic view of the pressure release of the present invention.

Detailed Description

The present invention is described in detail with reference to the drawings and examples, but those skilled in the art should understand that the following examples are not the only limitations of the present invention, and all equivalent changes or modifications made in the spirit of the present invention should be considered as falling within the protection scope of the present invention.

As shown in fig. 1, the utility model provides a pressure relief device increases the relief valve mounting hole under the battery cartridge on end cap 1, in the relief valve mounting hole have with the inside UNICOM's of battery cartridge pressure release hole, in the end cap relief valve mounting hole under packing into pressure relief valve body 2, push down sealing rubber circle 3.

As shown in fig. 2, the pressure relief valve body 2 is composed of a valve seat 4, a valve cover 5, a spring 6 and a valve core 7, the valve core 7 and the spring 6 are sequentially installed in the valve seat 4, and then the valve cover 5 is screwed into the valve seat 4 to press the valve core 7 and the spring 6.

As shown in fig. 3, in a normal working state, the external pressure is large, and the pressure and the spring 6 act together to press the valve core 7 on the mounting hole of the lower plug 1, so that the sealing rubber ring 3 is pressed tightly to seal the pressure relief hole.

As shown in fig. 4, when the leakage of the internal battery occurs, the internal pressure of the battery can is rapidly increased, when the internal pressure is far higher than the external pressure, the internal pressure pushes up the valve element 7 through the pressure relief hole, and the internal high-pressure gas is discharged through the gap between the valve element 7 and the valve seat 4, so that the internal pressure of the battery can is reduced, and the battery can is prevented from being exploded due to the internal high pressure.

When the internal pressure of the battery barrel is reduced to be consistent with the external pressure, the valve core 7 returns to the initial position again under the action of the spring 6, the sealing rubber ring 3 is compressed, the sealing effect is realized, and the external liquid is prevented from entering the battery barrel, so that the instrument is damaged.

Further, the pressure relief valve body is independently assembled, and the valve cover 5 and the valve seat 4 are firmly welded after the assembly is completed.

Further, a through hole in the top end of the valve cover 5 is made into a hexagonal hole for screwing the pressure relief valve body 2 when the lower plug 1 is installed.

Still further, the spring 6 pressure is adjusted, which pressure is required to meet the following requirements: a. the pressure can press the valve core 7 in the mounting hole of the lower plug 1, and b. the pressure can enable the sealing rubber ring 3 to achieve enough deformation, so that pressure sealing is realized, c. the pressure is not too large, and when the internal pressure is required to be greater than the external pressure, the internal pressure can push the valve core 7 to open and release pressure.

Furthermore, the material of the sealing rubber ring 3 is fluororubber, and the rubber needs to be resistant to high temperature.

After improvement, when the battery explodes, high-pressure gas generated by battery explosion is released in time, so that the explosion accident of a battery short section is avoided, and the safety of field personnel is ensured; meanwhile, when the underground battery explodes, the device can balance the internal and external pressure of the battery barrel, avoid the breakage of the battery barrel to cause the scrapping of the whole series of MWD instruments, and can timely seal the pressure relief holes while reducing the internal pressure of the battery barrel, so that the drilling fluid is prevented from entering the inside of the instrument to cause the scrapping of the instrument, and the use cost is greatly reduced.

Claims

1. The utility model provides an avoid battery explosion in pit to arouse device of revealing, characterized by the device is including lower end cap, pressure release valve body and sealing rubber circle, and wherein the end cap provides the mounted position down, and pressure release valve body installs on the end cap down, lower end cap and the external threaded connection of relief valve, are provided with the sealing washer down between end cap and the pressure release valve body, and pressure release valve body releases pressure when the battery explodes, and sealing rubber circle is used for the instrument to seal.

2. The device for preventing the leakage caused by the explosion of the underground battery as claimed in claim 1, wherein the pressure relief valve body is composed of a valve seat, a valve cover, a spring and a valve core.

3. The apparatus as claimed in claim 2, wherein the valve cover is provided with a hexagonal pressure relief hole for releasing pressure when the battery explodes.

4. The device for preventing the leakage caused by the explosion of the underground battery as claimed in claim 1, wherein a sealing rubber ring is arranged between the pressure relief valve body and the lower plug.

5. The device for preventing the leakage caused by the explosion of the underground battery as claimed in claim 1, wherein the pressure relief valve body needs to adjust the spring force, and the pressure needs to meet the following requirements: a. the pressure can press the valve core (7) in the lower plug (1) mounting hole, and b. the pressure can enable the sealing rubber ring (3) to achieve enough deformation, so that pressure sealing is realized, c. the pressure is not too large, and when the internal pressure is required to be greater than the external pressure, the internal pressure can push the valve core (7) to open for pressure relief.

6. The device for preventing the leakage caused by the explosion of the downhole battery as claimed in claim 2, wherein the through hole at the top end of the valve cover is made into a hexagonal hole for screwing the pressure relief valve body when the pressure relief valve body is installed on the lower plug.