CN201143711Y

CN201143711Y - Micro-blasting device inside lumber

Info

Publication number: CN201143711Y
Application number: CNU2007201285418U
Authority: CN
Inventors: 王天龙; 刘毅
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2007-08-17
Filing date: 2007-08-17
Publication date: 2008-11-05
Anticipated expiration: 2017-08-17

Abstract

The utility model relates to a wood internal micro-explosion device, and a frond end cover is used for placing woods in a cylinder body and is fixed on the cylinder body by a binding bolt; a back end cover is fixed on the cylinder body by the binding bolt. A clapboard is arranged in the cylinder body; the clapboard is provided with central holes; fast discharge ports are arranged on the wall of the cylinder body; a piston with damping holes can move in the cylinder body; the front and the back position of the cylinder body are restricted by the clapboard and the back end cover; the back end cover with inlet discharge ports is connected with an air compressor and an exhaust valve. The cylinder body can be divided into two cavities which are separated by the clapboard; the left cavity is a work cavity which is used for pressing woods and is under a closed state when working; the right cavity is a piston cylinder; a piston is internally arranged in the right cavity and used for opening or closing the left work cavity; the high pressure air inflation to the work cavity can be realized by the damping holes in the center of the piston. Under the condition of keeping the physical mechanical performance and complete appearance of the woods, the permeability of the woods is improved and basic conditions for realizing the high performance and multi-functionalization of the woods are created.

Description

The inner micro-explosion device of timber

Technical field

The utility model relates to a kind of under the complete condition of the physical and mechanical property that keeps timber itself and outward appearance, the inner micro-explosion device of all or part of timber of opening of tissue, cell and the pitpair that timber inside is got clogged belongs to the Wood Science and Technology field.

Background technology

Timber is that the connection between them depends on pitpair again by big or small, that shape is different with structure tissue and cellularity, and therefore, whether tissue, cell and pitpair be penetrating, is the comparatively key factor that influences timber transparent performance and Wooden modifying.In traditional timber permeability modification method, adopt methods such as hot and cold water immersion, poach, decatize, organic solvent extracting to carry out the improvement of timber permeability usually, with regard to the device of its use, the simple and weak effect of device, device complexity and effect is obvious.The operating process of this class complex device generally has certain danger, and input and operating cost are higher.Chinese patent: 97197707.0 relate to a kind of device that is used for rock blasting, are applicable to the demolition set in open-air cast iron ore deposit; In closed container, adorn imflammable gas 200510045893.8 relate to a kind of employing, the method for igniting by the electric spark device; 89106544.X relating to a kind of electric energy directly changes into mechanical energy (expansion of moisture) and is applicable to the construction of various blasting engineerings and construction in the inflammable gas is arranged; 02238058.2 relate to a kind of high-pressure liquid medium (pure water) abrupt release that utilizes, explode the method for breaking cell wall, be applicable to the broken wall process of herbal raw material.The patent that is applicable to the inner micro-explosion device of timber does not retrieve.The utility model relates under the complete condition of the physical and mechanical property that keeps timber itself and outward appearance, abrupt release by timber internal high pressure gas and part water under high pressure, high velocity air is gone out to the outside from timber inside, tissue, cell and the pitpair of mediation timber inside, can also destroy simultaneously the structure of torus, can improve the transparent performance of timber thus fully, create basic condition for realizing timber high performance and multifunction.This device can also be realized the improvement of the permeability of timber different aspects by the variation of control technological factor.

Summary of the invention

Technical problem: the purpose of the utility model patent is in order to overcome the shortcoming and defect of above-mentioned technology, provide a kind of have drop into little, operating cost is low, operability good, the respond well inner micro-explosion isolated plant of timber.

Technical scheme: this utility model mainly is made up of parts such as cylinder body 2, drive end bearing bracket 1, rear end cap 7, dividing plate 4, pistons 6.Drive end bearing bracket is used for placing timber in cylinder body, be fixed on the cylinder body by fastening bolt, and rear end cap 7 is fixed on the cylinder body by fastening bolt 3.Dividing plate is arranged in the cylinder body, and dividing plate has centre bore, and quick steam vent is arranged on the cylinder wall, and piston can move in cylinder body, and has damping hole, and front and back position is by dividing plate and rear end cap restriction, and port is stamped in the rear end, links with air compressor machine and air bleeding valve.

Two chambeies about cylinder body divides, by dividing plate 4 separately.Chamber, a left side is a working chamber, is used for being in sealing state during work to the timber pressurization.Right chamber is a piston cylinder, and built-in piston is used to open or close the working chamber on the left side, can realize filling gases at high pressure to working chamber by the damping hole at piston center.

The operation principle of this device is: for realizing the inner micro-explosion of timber, at first must make the inner high pressure that produces of timber.Timber will be placed in the container of sealing for this reason, charge into gases at high pressure in container, behind the pressurize certain hour, make the gas pressure in timber pressure inside and the container reach balance, the timber internal pressure raises.Then container moment is opened, internal gas discharges fast, and pressure reduces.Timber is finished the micro-explosion process under the effect of inside and outside differential pressure.

Beneficial effect: this device operability is good, and cost is low, and demolition effect is good.

Description of drawings

The inner micro-explosion isolated plant structure principle chart (pressurized state) of Fig. 1 timber

The inner micro-explosion isolated plant structure principle chart (depressurization phase) of Fig. 2 timber

The quick steam vent 12-of 1-drive end bearing bracket 2-cylinder body 3-fastening screw 4-dividing plate 5-sealing gasket 6-piston 7-rear end cap 8-port 9-rubber blanket 10-damping hole 11-dividing plate centre bore

The specific embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:

This device mainly is made up of parts such as cylinder body 2, drive end bearing bracket 1, rear end cap 7, dividing plate 4, pistons 6.Drive end bearing bracket is used for placing timber in cylinder body, be fixed on the cylinder body by fastening bolt, and rear end cap 7 is fixed on the cylinder body by fastening bolt 3.Dividing plate is arranged in the cylinder body, and dividing plate has centre bore, and quick steam vent is arranged on the cylinder wall, and piston can move in cylinder body, and has damping hole, and front and back position is by dividing plate and rear end cap restriction, and port is stamped in the rear end, links with air compressor machine and air bleeding valve.

The course of work of this device is:

When pressurizeing to timber as Fig. 1, gases at high pressure enter from port 8, promote piston 6 to left movement, and crush seal pad 5 makes the space at timber place and steam vent 11 disconnections fast.Pressed gas enters the working chamber of being made up of drive end bearing bracket 1, cylinder body 2, dividing plate 4 and piston 6 from damping hole 10, and the pressure until this device inner space reaches balance, and the air pressure of piston 6 both sides equates.Because piston both sides lifting surface area do not wait, the lifting surface area on right side is greater than the left side, makes the suffered at this moment active force to the right of piston less than left active force, produces making a concerted effort left, and piston is pressed on the sealing gasket 5 tightly, plays good sealing function.Timber bears the effect of gases at high pressure in working chamber, make its internal pressure and external pressure balance.

During as Fig. 2 fast pressure relief, the gases at high pressure on piston right side are got rid of by port 8, and pressure descends rapidly.At this moment the gas in piston left side also can be discharged left from damping hole, because the effect of damping hole is arranged, the left side gas pressure descends slowly.Make the suffered active force to the right of piston have little change big, until the active force that surpasses left, produce making a concerted effort to the right, force piston to move right fast, open dividing plate centre bore 12, the gas in the working chamber is discharged by quick steam vent 11 rapidly, the working chamber internal pressure sharply descends, timber internal pressure gas is realized micro-explosion rapidly to external diffusion.9 pairs of pistons that move right 6 of rubber blanket have cushioning effect.

Claims

1. the inner micro-explosion device of a timber, comprise cylinder body, drive end bearing bracket, rear end cap, dividing plate, piston, drive end bearing bracket is fixed on the cylinder body by fastening bolt, and rear end cap also is fixed on the cylinder body by fastening bolt, dividing plate is arranged in the cylinder body, dividing plate has centre bore, and quick steam vent is arranged on the cylinder wall, and piston can move in cylinder body, and have a damping hole, front and back position is by dividing plate and rear end cap restriction, and port is stamped in the rear end, links with air compressor machine and air bleeding valve.

2. the inner micro-explosion device of timber as claimed in claim 1 is characterized in that: two chambeies about cylinder body divides, separate by dividing plate, and left chamber is a working chamber, right chamber is a piston cylinder, built-in piston.