Heat preservation structure of metering pump
Through the combination of the two-half structure of aluminum sleeve and graphite insulation cover, the temperature unevenness and dust problems of the metering pump during spinning is solved, and better insulation effect and production stability are achieved.
Patent Information
- Application Number
- CN202420885052.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Due to the lack of effective insulation measures during the spinning process of existing metering pumps, the melt temperature is uneven, resulting in abnormal operation and production accidents, and dust particles entering the pump shaft port affect the insulation effect.
It adopts a two-half structure of aluminum sleeve, built-in thermal insulation support, and an aluminum stop cover and graphite insulation cover are installed at the pump shaft opening. Combined with an insulating rubber seal, it ensures that the temperature of the metering pump is uniform and dustproof.
It improves the insulation effect of the metering pump, reduces the phenomenon of the pump being stuck if the melt temperature does not meet the standard, and enhances production stability and service life.
Smart Images
Figure CN222208260U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metering pumps, in particular to a heat preservation structure of a metering pump. Background Art
[0002] The metering pump is a type of fluid conveying machinery, and its outstanding feature is that it can maintain a constant flow rate that is independent of the discharge pressure. The metering pump can simultaneously complete the functions of conveying, metering and regulating, thereby simplifying the production process. Therefore, the metering pump is particularly widely used in the design of fluid metering and other production lines. However, the melt temperature conveyed during the spinning process is as high as 290°C. In order to increase the permeability of the melt in the metering pump, ensure the discharge volume of the metering pump, and make the spinning process have good product quality and high productivity, the metering pump needs to be effectively insulated. The existing insulation sleeve usually only places the metering pump body in an insulation box, and there is no corresponding insulation measure for the pump shaft port at the connection between the metering pump and the motor, resulting in poor insulation effect, and also causing dust particles to enter from the pump shaft port. When the temperature of the metering pump is low, it will cause the metering pump to operate abnormally or even lock, resulting in production accidents. Utility Model Content
[0003] The utility model aims to overcome the deficiencies of the prior art and provide a heat preservation structure for a metering pump. The utility model has a better heat preservation effect, is less likely to cause the pump to get stuck due to the melt failing to reach the required temperature, and improves production stability.
[0004] The purpose of the utility model is achieved through the following technical solutions: a heat-insulating structure of a metering pump, comprising an aluminum sleeve that can accommodate the metering pump, both ends of the sleeve are open, and the sleeve comprises a first half-cylinder and a second half-cylinder, one of the butt edges of the first half-cylinder and the second half-cylinder is hinged, the other butt edge of the first half-cylinder is provided with a locking groove, and the other butt edge of the second half-cylinder is provided with a locking tongue, the locking tongue cooperates with the locking groove, a plurality of heat-insulating support members are evenly arranged on the inner walls of the first half-cylinder and the second half-cylinder, one end of the first half-cylinder is fixed on a material pump body connected to the metering pump, an aluminum baffle cover that cooperates with the metering pump sleeve is provided on the upper end cover of the metering pump sleeve, a through hole that cooperates with the pump shaft is provided in the center of the baffle cover, a graphite heat-insulating cover is also provided on the baffle cover, and a through hole that cooperates with the pump shaft is provided in the center of the heat-insulating cover.
[0005] In one preferred embodiment, the retaining cover is composed of two semicircular aluminum parts, and the heat-insulating cover is also composed of two semicircular graphite heat-insulating parts.
[0006] In one preferred embodiment, the sleeve is also covered with thermal insulation asbestos.
[0007] In one preferred embodiment, the mating surfaces of the first half cylinder and the second half cylinder are provided with heat-insulating rubber.
[0008] The beneficial effects of the utility model are as follows: the sleeve of the utility model adopts a two-half structure, the placement of the metering pump is convenient and quick, the metering pump is fixed by the internal insulation support, and at the same time has a shock-absorbing effect, reduces the pulse pressure, and can ensure that the distance between the metering pump and the inner wall is the same, thereby ensuring the uniform temperature around the metering pump; the setting of the baffle cover and the insulation cover is conducive to dust blocking and heat preservation, especially the insulation cover made of graphite material, the thermal expansion coefficient of graphite is small, and its strength increases with the increase of temperature. The use of the graphite insulation cover can increase the insulation effect and service life of the metering pump; the insulation effect is better, and it is not easy to get the melt failing to reach the required temperature and the pump getting stuck, thereby improving the stability of production. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 This is a schematic diagram of the structure of the blocking cover of the utility model;
[0012] Figure 3 It is a schematic diagram of the structure of the thermal insulation cover of the utility model.
[0013] In the figure, 1-aluminum sleeve, 2-first half cylinder, 21-locking groove, 3-second half cylinder, 31-locking tongue, 4-insulating support member, 5-blocking cover, 6-insulating cover. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0017] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0018] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0019] The terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.
[0020] The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] In addition, the terms "roughly" and "basically" are intended to explain that the relevant content does not require absolute precision, but can have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "basically" have similar meanings to the above.
[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-Figure 3 The utility model provides a technical solution: a heat preservation structure of a metering pump, comprising an aluminum sleeve 1 for accommodating a metering pump, both ends of the sleeve are open, and the sleeve comprises a first half-cylinder 2 and a second half-cylinder 3, one of the butt edges of the first half-cylinder 2 and the second half-cylinder 3 is hinged, the other butt edge of the first half-cylinder 2 is provided with a locking groove 21, the other butt edge of the second half-cylinder 3 is provided with a locking tongue 31, the locking tongue 31 cooperates with the locking groove 21, a plurality of heat-insulating support members 4 are evenly arranged on the inner walls of the first half-cylinder 2 and the second half-cylinder 3, one end of the first half-cylinder 2 is fixed on a material pump body connected to the metering pump, an aluminum baffle 5 cooperating with the metering pump sleeve is provided on the upper end cover of the metering pump sleeve, a through hole cooperating with the pump shaft is provided in the center of the baffle 5, a graphite heat-insulating cover 6 is also provided on the baffle 5, and a through hole cooperating with the pump shaft is provided in the center of the heat-insulating cover 6. The sleeve of the utility model adopts a two-half structure, and the placement of the metering pump is convenient and quick. The metering pump is fixed by the internal insulation support member 4, which has a shock-absorbing effect, reduces the pulse pressure, and can ensure that the distance between the metering pump and the inner wall is the same, thereby ensuring the uniform temperature around the metering pump; the setting of the baffle cover 5 and the insulation cover 6 is conducive to dust blocking and heat preservation, especially the insulation cover 6 made of graphite material. The thermal expansion coefficient of graphite is small, and its strength increases with the increase of temperature. The use of the graphite insulation cover 6 can increase the insulation effect and service life of the metering pump; the insulation effect is better, and it is not easy to get the melt unable to reach the required temperature and the pump gets stuck, thereby improving the stability of production.
[0024] Preferably, the blocking cover 5 is composed of two semicircular aluminum parts, and the heat-insulating cover 6 is also composed of two semicircular graphite heat-insulating parts.
[0025] Preferably, the sleeve is also covered with thermal insulation asbestos.
[0026] Preferably, the contact surface between the first half cylinder 2 and the second half cylinder 3 is provided with heat insulating rubber, which ensures good sealing and reduces heat loss, thus further achieving a heat preservation effect.
[0027] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the technology and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A heat preservation structure of a metering pump, characterized in that: It comprises an aluminum sleeve capable of accommodating a metering pump, both ends of the sleeve are open, and the sleeve comprises a first half-cylinder and a second half-cylinder, one of the butt edges of the first half-cylinder and the second half-cylinder is hinged, the other butt edge of the first half-cylinder is provided with a locking groove, the other butt edge of the second half-cylinder is provided with a locking tongue, the locking tongue cooperates with the locking groove, a plurality of heat-insulating support members are evenly arranged on the inner walls of the first half-cylinder and the second half-cylinder, one end of the first half-cylinder is fixed on a material pump body connected to the metering pump, an aluminum baffle cover cooperating with the metering pump sleeve is provided on the upper end cover of the metering pump sleeve, a through hole cooperating with the pump shaft is provided in the center of the baffle cover, a graphite insulation cover is also provided on the baffle cover, a through hole cooperating with the pump shaft is provided in the center of the insulation cover, 2. The heat preservation structure of the metering pump according to claim 1 is characterized in that: The blocking cover is composed of two semicircular aluminum parts, and the heat-insulating cover is also composed of two semicircular graphite heat-insulating parts.
3. The heat preservation structure of the metering pump according to claim 1 is characterized in that: The sleeve is also covered with thermal insulation asbestos.
4. The heat preservation structure of the metering pump according to claim 1 is characterized in that: The fitting surfaces of the first half cylinder and the second half cylinder are provided with heat insulating rubber.