CN205191606U - Distribution causes cabinet - Google Patents

Abstract

The utility model discloses a distribution causes cabinet, personally experience sth. Part of the body and set up in the internal total intake pipe of cabinet including the cabinet, main gas circuit, a gas circuit of bypass gas circuit and a plurality of parallelly connected settings, main gas circuit and bypass gas circuit are parallelly connected to be set up between total intake pipe and each gas circuit, main gas circuit communicates with total intake pipe with the inlet end of bypass gas circuit, main gas circuit communicates with the common port of the give vent to anger end and a plurality of the gas circuits of bypass gas circuit, be provided with a normally -closed solenoid valves and a main pressure regulator valve in the main gas circuit, be provided with a normally open solenoid valve and a bypass air -vent valve in the bypass gas circuit, each gas circuit all is provided with a normally -closed solenoid valves, steerable each gas circuit realizes break -make or independent break -make simultaneously. Compared with the prior art, the utility model discloses having increased distribution causes cabinet's suitability, having reduced the installation degree of difficulty, adopted the parallelly connected mode of many gas circuits, can be used for the multiple spot to blow the ash in a flexible way, the operating efficiency is high, and greatly reduced manufacturing and acquisition cost, economic benefits is splendid, consequently, has very wide application prospect.

Description

Distribution causes cabinet

Technical field

The utility model relates to distribution and causes cabinet, belongs to boiler plant technical field.

Background technology

Fire coal and oil burning boiler are in running, and back-end surfaces generally produces dust stratification, and flue gas resistance is increased, and exhaust gas temperature raises, and has a strong impact on the normal operation of boiler.Steam blowing technique conventional is both at home and abroad unsuitable for removing boiler tail dust stratification under many circumstances, dedusting effect is very undesirable, main cause is that steam soot blowing can cause smoke moisture to increase, more easily cause dust stratification and blocking, sometimes corrosion also can be made to aggravate, to calcium content or the higher ash of sulfur content all the more so.

Fuel gas pulse ash blower device is a kind of advanced in performance deashing device of new generation, fuel gas pulse ash blower device utilizes the conventional gaseous fuel such as acetylene or coal gas, natural gas, liquefied petroleum gas, burn in the combustion chamber of particular design, and launch shock wave with the nozzle on efferent duct, by the effect of shock wave, the dust stratification on heating surface is come off, dedusting effect is remarkable.

But, for boilers such as refuse furnace, metallurgical roasting furnace, biomass stove, glass and cement industry waste-heat ovens, because the flue gas corrosion produced in boiler is extremely strong, serious corrosion can be produced to inside the jet pipe in fuel gas pulse ash blower device and impulse generator tank body.The reason that this corrosion phenomenon occurs is that fuel gas pulse ash blower device is a kind of equipment of intermittent work, when the system is operated, pressure in jet pipe and impulse generator tank body is greater than pressure in flue, and when fuel gas pulse ash blower system stalls, in jet pipe and impulse generator tank body, pressure is die-offed, malleation compared to flue disappears, and the after-etching flue gas in flue can enter into the larger jet pipe of the pressure loss and impulse generator tank interior, causes corrosion phenomenon.In order to address this problem, the mode that a distribution initiation cabinet is set up in the many employings of people enters in impulse generator tank body to prevent flue gas from flowing backward to jet pipe, existing distribution causes in cabinet is all furnished with a major loop and a bypass branch, major loop and bypass branch are all furnished with a magnetic valve and pressure regulator valve, when impulse soot blowing system works, major loop is ventilated, bypass branch ends, when system stalls, major loop ends, bypass branch is ventilated, bypass branch is made to keep certain air mass flow to flue, thus can prevent remaining flue gas from flowing backward to jet pipe by bypass branch, effective solution corrosion phenomenon.

But it should be noted that, this distribution causes the use that cabinet is only applicable to single grey source, once there be multiple grey source to need to blow ash process, then needing, a distribution is all set on each jet pipe branch road and causes cabinet, accordingly, each distribution causes cabinet needs again repeated configuration major loop and bypass branch two magnetic valves, not only manufacturing cost and acquisition cost increase, and be limited to a pot furnace inner space, its installation difficulty also can increase greatly, use flexibility is low, and applicability is poor.Therefore, the distribution that a kind of structure layout design rationally, use is flexible, applicability is wide causes cabinet and urgently releases.

Summary of the invention

For the problems referred to above that prior art exists, the purpose of this utility model is to provide distribution to cause cabinet, carries out structure optimization and rational deployment by causing cabinet to existing distribution, increases use flexibility and applicability that distribution causes cabinet, reduce installation difficulty and cost, increase economic efficiency.

For realizing above-mentioned utility model object, the technical solution adopted in the utility model is as follows:

Distribution causes cabinet, comprise cabinet and be arranged on the total inlet pipe in cabinet, main gas circuit, bypass gas circuit and multiple gas circuit be arranged in parallel, wherein, main gas circuit and bypass gas circuit are arranged in parallel between total inlet pipe and each gas circuit, main gas circuit is communicated with total inlet pipe with the inlet end of bypass gas circuit, main gas circuit is communicated with the common port of multiple gas circuits with the outlet side of bypass gas circuit, main gas circuit is provided with a normally closed solenoid valve and a main pressure regulator valve, bypass gas circuit is provided with a normally open solenoid valve and a bypass pressure regulating valve, each gas circuit is provided with a normally closed solenoid valve, each gas circuit can be controlled and realize break-make or separately break-make simultaneously.

Preferably, the conveniently management and control of manifold pressure, total inlet pipe is provided with a Pressure gauge.

Preferably, in order to ensure aridity and the degree of purity of source of the gas place air-flow, total inlet pipe is also provided with a filter.

Preferably, in order to reduce manufacturing cost, normally closed solenoid valve elects the bi-bit bi-pass normally closed solenoid valve of less expensive as.

More preferably, the bi-bit bi-pass normally open solenoid valve of less expensive also elected as by normally open solenoid valve.

Preferably, main pressure regulator valve and bypass pressure regulating valve all elect needle valve as, facilitate pressure regulation to operate.

Preferably, in order to prevent remaining smoke backflow further, each gas circuit all sets up an air check valve.

Relative to prior art, the beneficial effects of the utility model are: carry out structure optimization and rational deployment by causing cabinet to existing distribution, increase the applicability that distribution causes cabinet, reduce installation difficulty, adopt the mode of branched gas circuit parallel connection, ash can be blown flexibly for multiple spot, operating efficiency is high, and be only provided with two magnetic valves at total source of the gas place, in each gas circuit, all only a magnetic valve need be set, greatly reduce manufacture and acquisition cost, economic benefit is splendid, in addition, this is assorted initiation cabinet and has splendid anticorrosion ability, effectively improve the service life of fuel gas pulse ash blower device.Therefore, there is very wide application prospect and promotional value.

Accompanying drawing explanation

Fig. 1 is the structural representation of the distribution initiation cabinet that the utility model provides.

Detailed description of the invention

Below in conjunction with accompanying drawing and preferred embodiment, further detailed complete to illustrate is done to the utility model.

The preferred embodiment schematic diagram of the distribution initiation cabinet that Fig. 1 provides for the utility model.As shown in Figure 1, this distribution causes the total inlet pipe 2 that cabinet comprises cabinet 1 and is arranged in cabinet 1, main gas circuit 3, bypass gas circuit 4 and six gas circuits 5 be arranged in parallel, wherein, main gas circuit 3 and bypass gas circuit 4 are arranged in parallel between total inlet pipe 2 and each gas circuit 5, main gas circuit 3 is communicated with total inlet pipe 2 with the inlet end of bypass gas circuit 4, main gas circuit 3 is communicated with the common port of multiple gas circuits 5 with the outlet side of bypass gas circuit 4, main gas circuit 3 is provided with a bi-bit bi-pass normally closed solenoid valve 31 and a main pressure regulator valve 32, accordingly, bypass gas circuit 4 is then provided with a bi-bit bi-pass normally open solenoid valve 41 and a bypass pressure regulating valve 42, wherein, main pressure regulator valve 32 and bypass pressure regulating valve 42 all adopt easy to operate needle valve, six gas circuits 5 are provided with a bi-bit bi-pass normally closed solenoid valve 51 and air check valve 52 respectively.

In addition, the conveniently management and control of manifold pressure, total inlet pipe 2 is also provided with a Pressure gauge 21, and considers aridity and the degree of purity of air-flow, total inlet pipe 2 also has additional a filter 22.

When impulse soot blowing system works, main gas circuit 3 is ventilated, bypass gas circuit 4 is ended, air pulse is jetted to each dust stratification point by each gas circuit 5, and when system stalls, main gas circuit 3 is ended, bypass gas circuit 4 passes into a small amount of air-flow to each gas circuit 5, make each gas circuit 5 pairs of flues keep certain air mass flow, thus can prevent remaining flue gas from flowing backward in jet pipe by a gas circuit 5, effectively solve corrosion phenomenon.It is worth mentioning that, because each gas circuit 5 is equipped with a magnetic valve 51 respectively, therefore each gas circuit 5 can realize winding-up separately or the winding-up of any combination formula, use extremely flexible, and setting up of air cutoff valve 52, smoke backflow can be prevented further, promote anticorrosion ability.

Finally be necessary described herein: above embodiment is only for being described in more detail the technical solution of the utility model; can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to foregoing of the present utility model and adjustment all belong to protection domain of the present utility model.

Claims (7)

1. distribution causes cabinet, it is characterized in that: comprise cabinet and be arranged on the total inlet pipe in cabinet, main gas circuit, bypass gas circuit and multiple gas circuit be arranged in parallel, main gas circuit and bypass gas circuit are arranged in parallel between total inlet pipe and each gas circuit, main gas circuit is communicated with total inlet pipe with the inlet end of bypass gas circuit, main gas circuit is communicated with the common port of multiple gas circuits with the outlet side of bypass gas circuit, main gas circuit is provided with a normally closed solenoid valve and a main pressure regulator valve, bypass gas circuit is provided with a normally open solenoid valve and a bypass pressure regulating valve, each gas circuit is provided with a normally closed solenoid valve, each gas circuit break-make or independent break-make simultaneously can be controlled.

2. distribution according to claim 1 causes cabinet, it is characterized in that: total inlet pipe is provided with a Pressure gauge.

3. distribution according to claim 1 and 2 causes cabinet, it is characterized in that: total inlet pipe is provided with a filter.

4. distribution according to claim 1 causes cabinet, it is characterized in that: normally closed solenoid valve elects bi-bit bi-pass normally closed solenoid valve as.

5. the distribution according to claim 1 or 4 causes cabinet, it is characterized in that: bi-bit bi-pass normally open solenoid valve elected as by normally open solenoid valve.

6. distribution according to claim 1 causes cabinet, it is characterized in that: main pressure regulator valve and bypass pressure regulating valve all elect needle valve as.

7. distribution according to claim 1 causes cabinet, it is characterized in that: each gas circuit is equipped with an air check valve.