CN108458616A - Stirling-electric hybrid regenerator silk floss filling equipment and its packing method - Google Patents

Abstract

The invention discloses a kind of Stirling-electric hybrid regenerator silk floss filling equipment and its packing methods, Stirling-electric hybrid regenerator silk floss filling equipment includes supporting rack, and guide shell, the lower ending opening of guide shell are provided on supporting rack, the upper end cover of guide shell is equipped with conical lid, and conical lid is provided with vaccum suction pipe；Guide shell is internally provided with deflection cone, and deflection cone is connected with silk floss throttling net, and silk floss throttles network folder set between conical lid and the upper end of guide shell.Packing method is to load silk floss using the principle of vacuum suction anti-gravity, and qualified silk floss rises under suction, and forms silk floss felt in silk floss throttling deposited thereon.Filling equipment is simple in structure, easy to operate, it can be ensured that the uniform sequential flowing of silk floss during entire filling, thickness is consistent everywhere in the silk floss felt of formation.As Stirling-electric hybrid regenerator matrix in use, the heat exchange efficiency of Stirling-electric hybrid regenerator can be improved directly.

Description

Stirling Machine Regenerator Filament Filling Equipment and Filling Method

technical field

The invention relates to the technical field of regenerators, in particular to a silk floss filling device for a Stirling machine regenerator and a method for filling silk floss using the device.

Background technique

The regenerator is also called the cold storage device, which is a regenerative heat exchanger, mainly including the shell and the internal cold storage packing. The shell mainly acts as a container, and the cold storage packing is involved in the key heat exchange and the corresponding refrigeration cycle. . The heat transfer process is due to the helium pulsating back and forth in the regenerator to realize cold storage. When the helium flows from the hot end to the cold end, the filler in the regenerator cools the helium working fluid. When the helium gas flows from the cold end Helium cools the charge in the regenerator as it flows from end to hot end. The regenerator completes a cycle of heat exchange after a cold and heat exchange.

The regenerator is an important part of the Stirling machine. At present, most of the regenerators in the Stirling machine are filled with stainless steel wire mesh, copper wire mesh and other wire mesh. The lateral thermal conductivity of the wire mesh is better, but the diameter of the metal wire is generally about 0.03mm, the processing process is complicated and the cost is high. Moreover, during the filling process, the wire meshes are randomly stacked and staggered, and the filling density of the filler is difficult to control, resulting in a large flow resistance of the regenerator, resulting in low heat exchange efficiency.

A small part of the regenerator in the existing Stirling machine uses metal wool as filler, but the filling process often occurs uneven flow of silk wool, resulting in the problem of uneven thickness of the molded silk wool felt, resulting in relatively low flow resistance in parts of the regenerator. Large, affecting the heat transfer efficiency of the regenerator.

Contents of the invention

In order to overcome the deficiencies in the prior art above, the technical problem to be solved by the present invention is to provide a silk floss filling device for a regenerator of a Stirling machine, so as to reduce the inhomogeneity of the silk floss flow during the filling process.

As the same technical idea, another technical problem to be solved by the present invention is to provide a method for filling silk floss using the above-mentioned silk floss filling equipment of the regenerator of a Stirling machine.

In order to solve the above-mentioned first technical problem, the technical solution adopted in the present invention is:

Stirling machine regenerator silk floss filling equipment, including: a support frame, a guide tube is arranged on the support frame, the lower end of the guide tube is open, and the upper end cover of the guide tube is provided with a conical cover, The conical cover is provided with a vacuum suction tube;

A diversion cone is arranged inside the diversion cylinder, and the diversion cone is connected with a silk floss throttling net, and the silk floss throttling net is interposed between the conical cover and the upper end of the diversion cylinder.

Further, the diversion cone is located in the middle of the silk floss throttling net, and is fixedly connected with the silk floss throttling net.

Further, the vacuum suction pipe is connected with air extraction equipment.

In order to solve the above-mentioned second technical problem, the technical solution adopted in the present invention is:

The method for filling silk floss using the silk floss filling equipment of the Stirling machine regenerator comprises the following steps:

1) Connect the vacuum suction pipe to the air extraction device, turn on the air extraction device, and generate suction inside the guide cylinder by means of the vacuum suction pipe;

2) The silk floss is sucked into the air-guiding cylinder through the opening of the lower end of the air-guiding cylinder, and qualified silk floss rises slowly under the action of suction, and continuously deposits on the silk floss throttling net to form a silk floss felt, which is partially agglomerated. The silk floss falls under the guide tube under its own gravity;

3) When the pumping time reaches the preset value, close the pumping equipment and let it stand for a period of time;

4) Remove the tapered cover that is set on the upper end of the diversion tube, take out the silk floss throttling net, and remove the silk floss felt deposited on the lower surface of the silk floss throttling net, Used as filler for Stirling machine regenerator.

After adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

(1) The equipment has simple structure, convenient operation and low cost. The whole filling process has good environmental adaptability and no pollution to the working environment.

(2) Use the principle of vacuum adsorption and anti-gravity to fill the silk floss. When pumping air, the silk floss rises randomly under the action of suction, the influence of the rising air velocity is greater than the influence of the silk floss's own gravity, and qualified silk floss will rise slowly. Partially agglomerated silk floss falls through the opening at the lower end of the draft tube due to its relatively high density. In this way, the agglomerated silk floss is automatically eliminated by the action of gravity. Qualified silk floss will be continuously deposited on the silk floss throttling net. As the flow resistance increases where the floss is deposited, the flow rate decreases. The equipment can automatically make the silk floss flow to the position with less deposition. Ensure that the floss flows evenly during filling. The thickness of the formed silk felt is the same everywhere. When used as regenerator filler, it directly improves the heat exchange efficiency of the regenerator.

Description of drawings

Fig. 1 is the structure schematic diagram of the silk floss filling equipment of Stirling machine regenerator of the present invention;

Fig. 2 is the sectional view of A-A place among Fig. 1;

Among the figure: 1-supporting frame, 2-guiding cylinder, 21-guiding cone, 22-silk floss throttling net, 3-silk floss feeding pipe, 31-support, 4-conical cover, 41-vacuum suction tube.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1 and Fig. 2, a guide tube 2 is arranged on the support frame 1, and the lower end of the guide tube 2 is open, so as to facilitate the elimination and fall of the clumping silk floss. The silk floss feed pipe 3 stretches into the flow guide tube 2 through the lower opening of the flow guide tube 2, and the silk floss feed pipe 3 is used to transport the silk floss in the flow guide tube 2, and the silk floss feed tube 3 is fixedly supported by the support 31. The upper end cover of the guide tube 2 is provided with a conical cover 4 for easy installation or disassembly, and the upper end of the conical cover 4 is provided with a vacuum suction pipe 41; the vacuum suction pipe 41 is connected with the air extraction equipment, which can be an air pump or an air compressor Wait.

A diversion cone 21 is arranged inside the diversion cylinder 2, and the diversion cone 21 is connected with the silk floss throttling net 22, and the diversion cone 21 is located in the middle of the silk floss throttling net 22, and is fixedly connected with the silk floss throttling net 22. The silk floss throttling net 22 is interposed between the conical cover 4 and the upper end of the guide cylinder 2, which is convenient for disassembly, installation and cleaning of the silk floss throttling net 22. The arrangement of the guide cylinder 2 and the guide cone 21 guides the flow of the silk floss, and provides guarantee for the even and orderly flow of the silk floss.

The method of filling silk floss with the regenerator silk floss filling equipment of Stirling machine, the specific steps are as follows:

1) Connect the vacuum suction pipe 41 with the air extraction equipment, turn on the air extraction equipment, and generate suction inside the guide tube 1 by means of the vacuum suction pipe 41;

2) The silk floss in the silk floss feeding pipe 3 is sucked into the guide tube 2 one after another. The density of qualified silk floss is relatively small, and the suction force is greater than the gravity of the qualified silk floss itself. Deposition, as the flow resistance increases where the floss is deposited, the flow rate decreases. The silk floss automatically flows to the place where there is less deposition, ensuring that the silk floss can flow evenly and orderly throughout the filling process. Finally, a ring-shaped silk floss felt with a uniform thickness is formed. Part of the agglomerated silk floss has a relatively high density, and its own gravity is greater than the suction force.

3) When the pumping time reaches the preset value (calculate the preset value of the pumping time according to the flow rate and the thickness of the required silk felt), turn off the pumping device and let it stand for a period of time (ensure that the inside of the guide tube 2 Silk floss is in relatively static state, when avoiding opening conical cover 4, silk floss flows everywhere).

4) Take off the conical cover 4 that is arranged on the upper end of the guide tube 2, take out the silk floss throttling net 22, and remove the silk floss felt deposited on the lower surface of the silk floss throttling net 22, and the formed silk floss felt is uniform, The thickness is consistent everywhere, and it is used as the filler of the regenerator of the Stirling machine, which improves the heat exchange efficiency of the regenerator of the Stirling machine.

Claims (4)

1. Stirling-electric hybrid regenerator silk floss filling equipment, including：Supporting rack, which is characterized in that

Guide shell is provided on support frame as described above, the upper end cover of the lower ending opening of the guide shell, the guide shell is equipped with taper Lid, the conical lid are provided with vaccum suction pipe；

The guide shell is internally provided with deflection cone, and the deflection cone is connected with silk floss throttling net, the silk floss throttling network folder Between the conical lid and the upper end of the guide shell.

2. Stirling-electric hybrid regenerator silk floss filling equipment as described in claim 1, which is characterized in that the deflection cone is located at institute Silk floss throttling net centre position is stated, and is fixedly connected with silk floss throttling net.

3. Stirling-electric hybrid regenerator silk floss filling equipment as described in claim 1, which is characterized in that the vaccum suction pipe and pumping Gas equipment is connected.

4. utilizing the method for Stirling-electric hybrid regenerator silk floss filling equipment filling silk floss described in claim 1, which is characterized in that Include the following steps：

1) vaccum suction pipe is connected with air-extractor, opens the air-extractor, by the vaccum suction pipe described Suction is generated inside guide shell；

2) silk floss is inhaled by the lower ending opening of the guide shell in the guide shell, and qualified silk floss is slow under suction Rise, and in the online constantly deposition of silk floss throttling, forms silk floss felt, the silk floss of part conglomeration falls under self gravitation effect It drops down onto below the guide shell；

3) when pumpdown time reaches preset value, the air-extractor is closed, stands a period of time；

4) conical lid that lid is located to the guide shell upper end is removed, and takes out the silk floss throttling net, and will be deposited on institute It states the silk floss silk floss felt that surface off the net is formed that throttles to remove, the filler as Stirling-electric hybrid regenerator uses.