CN219703401U - Water injection structure and dewaxing cauldron - Google Patents

Abstract

The utility model belongs to the technical field of casting equipment, and particularly relates to a water injection structure and a dewaxing kettle, which comprises a shell and an inner container, wherein a reaction interlayer is formed between the shell and the inner container.

Description

Water injection structure and dewaxing cauldron

Technical Field

The utility model belongs to the technical field of casting equipment, and particularly relates to a water injection structure and a dewaxing kettle.

Background

In investment precision casting, melting the investment is one of the main processes. There are various dewaxing modes, including refrigerant dewaxing, high pressure steam dewaxing, organic solvent dewaxing, flash dewaxing, microwave dewaxing, hot sand dewaxing, etc. and refrigerant dewaxing kettle is the most widely used one. However, in the actual situation, the refrigerant flows in from the water inlet and diffuses to the whole reaction interlayer, and the refrigerant reaches each part of the reaction heat cavity in different time due to the pouring from one direction, so that the left and right heating of the inner container is inconsistent, uneven heating is easily caused, the dewaxing effect is poor, and the forming of wax is greatly influenced.

Disclosure of Invention

The utility model aims to provide a water injection structure and a dewaxing kettle, and aims to solve the problems.

The utility model provides a water injection structure and a dewaxing kettle for achieving the purposes, which comprise a shell and an inner container, wherein a reaction interlayer is formed between the shell and the inner container, and the dewaxing kettle is characterized by comprising at least one group of first partition boards, wherein one side of the shell is provided with a water inlet, the upper end of the water inlet is provided with a water outlet, the water inlet and the water outlet are communicated with the reaction interlayer, the first partition boards are arranged between the water inlet and the water outlet, the first partition boards separate the reaction interlayer to form two cavities, one end close to the water inlet is provided with a water injection area, one end close to the water outlet is provided with a rising area, and the first partition boards are provided with a plurality of through limiting holes. After the refrigerant entering the water injection area through the water inlet is blocked and decelerated by the first partition plate, the refrigerant uniformly enters the rising area through all the limiting holes.

Further, the diameters of the limiting holes are different, and the diameters of the limiting holes are sequentially increased towards the two ends along the water inlet.

Further, the flow limiting hole adopts a flange disc for communicating the water injection area with the rising area.

Further, a second baffle plate is arranged on the reaction interlayer and is positioned between the water outlet and the first baffle plate, and the second baffle plate is divided into two halves by separating the ascending area, so that one end close to the water outlet is set as a water outlet area, and the other end is set as a detention area.

Further, a plurality of through limiting holes are also arranged on the second partition plate, and the caliber of the limiting holes sequentially increases towards two ends along the water inlet.

Further, the outer wall of the shell and the inner container of the dewaxing kettle are made of heat-insulating structural materials.

The water injection structure and one or more technical schemes in the dewaxing kettle provided by the embodiment of the utility model have at least the following technical effects:

in the dewaxing process of investment casting, a refrigerant is poured from a water inlet to flow into a reaction interlayer, the refrigerant flows through a water injection area, the refrigerant continuously fills the water injection area, and under the extrusion of the refrigerant, one end of an ascending area, which is close to the water inlet, extends upwards, and due to the fact that a limiting hole is arranged to block and slow down the refrigerant, the inrush current of the refrigerant is reduced, after the water injection area is filled with the refrigerant, the refrigerant is uniformly poured upwards in the whole ascending area under the effect of the limiting hole, so that the inner container is heated uniformly, and the influence of wax defects caused by heating is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a cross-sectional view of a water injection structure and a dewaxing kettle according to an embodiment of the utility model.

Fig. 2 is a block diagram of a water injection structure and a dewaxing kettle according to an embodiment of the present utility model.

The main reference numerals illustrate:

100. a housing; 110. a reaction interlayer;

200. an inner container;

300. a first separator; 310. a flow restricting orifice; 320. a water inlet; 330. a water outlet; 340. a water injection area; 350. a rising region; 351. a water outlet area; 352. a detention zone; 360. a second separator;

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in fig. 1-2, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to fig. 1-2 are exemplary and intended to illustrate embodiments of the present utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, a water injection structure and a dewaxing kettle are provided, specifically, the dewaxing kettle comprises a housing 100 and a liner 200, a reaction interlayer 110 is formed between the housing 100 and the liner 200, and the dewaxing kettle is characterized by comprising at least one group of first partition boards 300, a water inlet 320 is arranged on one side of the housing 100, a water outlet 330 is arranged at the upper end of the water inlet 320, both the water inlet 320 and the water outlet 330 are communicated with the reaction interlayer 110, a first partition board 300 is arranged between the water inlet 320 and the water outlet 330, the first partition board 300 separates the reaction interlayer 110 to form two cavities, one end close to the water inlet 320 is set as a water injection area 340, one end close to the water outlet 330 is set as a rising area 350, and a plurality of through limiting holes 310 are arranged on the first partition board 300. After the refrigerant entering the water injection region 340 through the water inlet 320 is decelerated by the first separator 300, it uniformly enters the rising region 350 through all the flow restricting holes 310.

In the embodiment of the utility model, in the dewaxing process of investment casting, the refrigerant is poured from the water inlet 320 and flows into the reaction interlayer 110, the refrigerant flows through the water pouring area 340, the refrigerant continuously fills the water pouring area 340, and extends upwards towards one end of the rising area 350, which is close to the water inlet 320, under the extrusion of the refrigerant, due to the arrangement of the first baffle 310 with the limiting hole, the inrush current of the refrigerant is reduced, and after the water pouring area 340 is filled with the refrigerant, the refrigerant is uniformly poured upwards in the whole rising area 350 under the action of the first baffle 310 with the limiting hole, so that the liner 200 is uniformly heated, and the influence of wax defects caused by heating is reduced.

Further, the diameters of the first baffle plates 310 are different, and the diameters of the first baffle plates 310 are sequentially increased toward both ends along the water inlet 320. In this embodiment, the first baffle 310 of the restricting hole needs to prevent the refrigerant near one end of the water inlet 320 from spreading upwards, and meanwhile needs to ensure that the refrigerant uniformly spreads upwards in the rising area 350, so that the diameters of the first baffle 310 of the restricting hole are different, and the refrigerant is pressed more towards one end of the water inlet 320 during the pouring process, and needs to be restricted to upwelling with smaller diameters, so that the diameter of the first baffle 310 of the restricting hole gradually expands towards both ends along the water inlet 320.

Further, the orifice first baffle 310 employs a flange collar for communication between the water injection zone 340 and the lift zone 350. In this embodiment, the pipeline that flange ring flange connects, installation and dismantlement are all more convenient, and is better to restricting the effect that refrigerant flows, be convenient for later maintenance.

Further, the reaction interlayer 110 is provided with a second partition plate 360, the second partition plate 360 is positioned between the water outlet 330 and the first partition plate, and the second partition plate 360 is divided into two halves by separating the rising area 350, so that one end close to the water outlet 330 is provided with a water outlet area 351, and the other end is provided with a detention area 352. In this embodiment, the refrigerant needs to flow out after the refrigerant is poured out, and the outflow process is similar to the inflow process, the refrigerant uniformly rises in the retention area 352, and the first partition plate is restricted to flow holes when contacting the second partition plate 360; 310 flow the refrigerant according to different areas, so that the refrigerant near one end of the water outlet 330 slowly upwards flows, and the refrigerant far from one end of the water outlet 330 quickens upwards flowing, thereby achieving uniform water outlet.

Further, the second partition 360 is also provided with a plurality of through flow-limiting hole first partition 310, and the caliber of the flow-limiting hole first partition 310 increases along the water inlet 320 toward both ends. In this embodiment, after the refrigerant is poured, the refrigerant needs to flow out, and the flowing-out process is similar to the flowing-in process, the refrigerant uniformly rises in the retention area 352, the caliber of the first baffle plate 310 with the limiting holes sequentially increases towards two ends along the water inlet 320, and the first baffle plate 310 with the limiting holes limits the flow of the first baffle plate 310 according to the area under the influence of the caliber when contacting the second baffle plate 360, so that the refrigerant near one end of the water outlet 330 slowly flows up, and the refrigerant far away from one end of the water outlet 330 quickly flows up, so that the water outlet is uniform.

Further, the outer walls of the shell 100 and the liner 200 of the dewaxing kettle are made of heat-insulating structural materials, and heat dissipation can be reduced by adopting the heat-insulating structure, so that wax materials are heated more fully.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. The water injection structure comprises a shell and an inner container, a reaction interlayer is formed between the shell and the inner container, and the water injection structure is characterized by comprising at least one group of first partition boards, wherein one side of the shell is provided with a water inlet, the upper end of the water inlet is provided with a water outlet, the water inlet and the water outlet are communicated with the reaction interlayer, a first partition board is arranged between the water inlet and the water outlet, the first partition boards separate the reaction interlayer to form two cavities, one end close to the water inlet is provided with a water injection area, one end close to the water outlet is provided with a rising area, and a plurality of through limiting holes are formed in the first partition boards; after the refrigerant entering the water injection area through the water inlet is blocked and decelerated by the first partition plate, the refrigerant uniformly enters the rising area through all the limiting holes.

2. The water injection structure of claim 1, wherein the apertures of the restricting holes are different, and the apertures of the restricting holes increase in sequence along the water inlet toward both ends.

3. A water injection structure according to any one of claims 1 to 2, wherein the flow restricting orifice is a flange for communication between the water injection zone and the rising zone.

4. The water injection structure of claim 1, wherein a second partition is further disposed on the reaction interlayer, the second partition is located between the water outlet and the first partition, and the second partition separates the rising area from the rising area, so that one end near the water outlet is set as a water outlet area, and the other end is set as a retention area.

5. The water injection structure of claim 4, wherein the second partition plate is also provided with a plurality of through limiting holes, and the caliber of the limiting holes increases along the water inlet towards two ends.

6. The water injection structure of claim 1, wherein the outer walls of the outer shell and the inner liner of the dewaxing kettle are made of heat insulation materials.

7. A dewaxing kettle comprising the water injection structure of any one of claims 1 to 6.