CN101362109B - Temperature-control sealed door of warm-pressing experiment box - Google Patents

Abstract

The invention discloses a temperature-control air-tight door of a warm-pressing multi-purpose experimental box. The temperature-control air-tight door consists of wall panels of a box body, a door, a door frame, a door shaft, a door shaft fixed seat, a sealing ring and a rotary joint, wherein, the door is spliced and welded by the fixed seat milled with an observation window, a plurality of metal plates of parallel groove channels and a thin-gauge skin and the parallel groove channels at the interlayer of door wall carry out the heat exchanging circulation between flow-in fluid and flow-out fluid through a fluid inputting port and a fluid outputting port; door fixing holes with four screw threads are arranged at the periphery of the door frame and screwed into screw holes by four knobs each of which is provided with a spring, which increases the tightening force and the close pressing of the sealing ring, and can realize the sealing between the door and the door frame; the rotary joint consists of a metal hose, an exchanger and a rotary pipe and can keep internal fluid in a sealing state during the rotation. The temperature-control air-tight door can ensure that the temperature of the door conforms to that of the air in the box, thus basically avoiding the temperature influence of the door and the environment; and the temperature-control air-tight door can also increase the extrusion force between the door and the door frame so that the sealing ring can be contacted with the door more closely so as to effectively reduce the pressure leakage of the experimental box.

Description

Temperature control sealing door device for temperature and pressure comprehensive experiment box

(1) Technical field:

The invention relates to a temperature-control sealing door of a gas temperature-pressure comprehensive experiment box, in particular to a gas temperature-pressure sealing door with a large variation range of gas temperature and pressure, high requirements on the sealing of the experiment box and internal gas temperature indicators, and requiring active temperature control . The utility model belongs to the technical field of laboratory temperature control equipment.

(two) background technology:

With reference to Fig. 1, the hermetic door 2 ' of gas temperature and pressure test box in the past has door shaft 4 ', handle 11 ', observation window 10 ', observation window fixed seat 9 ' and knob 6 '. The door frame 3' is installed on the test box wall plate 1', and the door shaft fixing seat 7', the sealing ring 8' and the door fixing hole 5' are welded above. There is an insulation layer on the outside of the door wall, and the cooperation of the door shaft and the tightening knob makes the door squeeze the sealing ring on the door frame to achieve sealing.

There are following problems in the hermetic door adopting this kind of structure:

1. The way the door shaft cooperates with the tightening knob cannot provide a large extrusion force, especially when the pressure difference between the inside and outside of the box is too large, the tendency of gas leakage will increase, and it is easy to cause pressure leakage on the side close to the door shaft.

2. There is a temperature difference between the door and the internal gas, and the large mass and heat capacity of the door will continue to affect the internal gas temperature field.

3. When the difference between the gas temperature in the test box and the ambient temperature is too large, the joint between the door and the door frame will easily cause temperature leakage, and the uniformity of the temperature field near the door in the test box will be poor, which will cause the entire gas temperature field in the test box to be affected. Influence.

(3) Contents of the invention:

1. Purpose

The invention provides a temperature-controlled sealing door of a temperature-pressure comprehensive experiment box, which can make the temperature of the door consistent with the temperature of the gas in the box, and basically eliminate the temperature influence from the door and the environment; it can increase the extrusion force between the door and the door frame, Make the contact between the sealing ring and the door more closely, effectively reduce the pressure leakage of the test box.

2 technical solutions

The present invention is a temperature-control sealing door for a temperature-pressure comprehensive experiment box, which is composed of a box wall plate, a door, a door frame, a door shaft, a door shaft fixing seat, a sealing ring, and a rotary joint; the sealing ring is placed on the door frame with a groove Inside, the door frame is welded in the middle of the box wall plate, the door is installed in the door shaft fixing seat on the door frame through the door shaft on it, and the rotary joint is fastened on the box body wall plate with spring-loaded screws.

Among them, the door is composed of a fixed seat with an observation window, a metal plate with a parallel groove channel and a skin connected to each other. The parallel groove channel in the door wall interlayer passes through the liquid input and output ports to enter and The liquid flows out for heat exchange cycle, and the door handle and observation window are installed on the outside of the door;

Among them, there are four threaded door fixing holes around the door frame, and four knobs with springs are screwed into the screw holes to increase the tightening force and press the sealing ring to realize the sealing between the door and the door frame;

Among them, the rotary joint is composed of a metal hose, a converter and a rotary tube. The converter is fixed on the wall of the box with four screws with springs. One end of the converter is connected to the metal hose, and the other end is connected to the rotary tube. The liquid input port and output port are connected; the metal hose can move in a small range, and the rotating tube can rotate around the axis, and it keeps the internal liquid in a sealed state during the rotation process;

Wherein, a door shaft fixing seat is respectively arranged on the upper and lower sides of the left end of the door frame. The door shaft fixing seat is provided with a through hole, which is fixed on the door frame wall with a spring-loaded screw, and the door shaft fixing seat can be squeezed to realize a small range of movement. During the tightening process of the door, the door shaft fixing seat and the rotary joint together with the metal hose move with the door.

3. Advantages and effects

(1) The liquid circulation heat exchange channel in the interlayer of the door wall adopts a parallel structure, and the liquid is in direct contact with the door wall, the contact area is large, and the heat transfer coefficient is high, which can speed up the temperature control speed of the temperature control sealed door and improve the temperature control stability ; and the parallel flow structure can greatly increase the total liquid flow and carrying capacity through the heat exchange channel, and can ensure the heat supply for the temperature control of the box door.

(2) The application of the rotary joint can make the heat exchange liquid transition from the tank wall pipeline to the heat exchange channel of the door wall interlayer without affecting the rotation of the door. During the rotation of the door, the heat exchange liquid can always be in a sealed state.

(3) The knob tightening structure makes the extrusion force between the door and the door frame stronger and the combination is tighter, which can ensure that the gas in the test box is always in a strictly sealed state during a wide range of pressure changes. The application of the spring screw enables the door shaft fixing seat and the rotary joint to move along with the door during the tightening of the knob without affecting the fastening of the door.

(4) Description of drawings:

Figure 1 Schematic diagram of the traditional experimental box sealed door and door frame structure

Figure 2 Schematic diagram of temperature-controlled airtight door and door frame structure

Figure 3 Schematic diagram of the decomposition of the temperature-controlled airtight door

Figure 4 Schematic diagram of the rotary joint

Figure 5 Schematic diagram of the use of spring screws

Figure 6 Schematic diagram of the structure of the door shaft fixing seat

Figure 7 Schematic diagram of flow direction of heat exchange liquid

The labels and symbols in the figure are explained as follows:

1. 1' cabinet wall; 2. 2' door; 3. 3' door frame; 4. 4' door shaft;

5, 5' door fixing hole; 6, 6' knob; 7, 7' door shaft fixing seat; 8, 8' sealing ring;

9, 9' observation window fixing seat; 10, 10' observation window; 11, 11' door handle;

12 rotary joint; 13 metal hose; 14 converter; 15 rotary tube;

16 through hole; 17 screw; 18 spring; 19 groove channel;

20 liquid input port; 21 liquid output port; 22 metal plate; 23 skin.

(5) Specific implementation methods:

See Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, a temperature-pressure comprehensive experiment box temperature control sealed door, which is composed of box body wall plate 1, door 2, door frame 3, door shaft 4, The door shaft fixing seat 7, the sealing ring 8, and the rotary joint 12 are composed; the sealing ring 8 is placed in the door frame 3 with a groove, the door frame 3 is welded in the middle of the box wall plate 1, and the door 2 is installed on the door shaft 4 on it. In the door shaft fixing seat 7 on the door frame 3, the screw 17 of the swivel joint 12 is fastened on the casing wall plate 1 with the band spring 18.

Wherein, the door 2 is formed by connecting the metal plate 22 provided with the observation window fixing seat 9 and the groove channel 19 with the skin 23. The groove channel 19 in the interlayer of the door wall passes through the liquid input port 20 and the liquid output port. The port 21, enters and exits the liquid to carry out the heat exchange cycle, the door handle 11 and the observation window 10 are installed on the outside of the door 2.

Wherein, the door frame 3 is provided with four threaded door fixing holes 5 around, through which four knobs 6 with springs 18 are screwed into the screw holes, the tightening force is increased, the sealing ring 8 is pressed, and the door 2 and the door frame 3 seals;

Wherein, a door shaft fixing seat 7 is respectively arranged on the upper and lower sides of the left end of the door frame 3 . Leave through hole 16 on the door shaft holder 7, be fixed on the doorframe wall with the screw 17 of band spring, extrude door shaft holder can make it realize small-scale movement.

Among them, the rotary joint 12 is composed of a metal hose 13, a converter 14 and a rotary tube 15. The converter 14 is fixed on the box wall 1 with four screws 17 with springs 18, and one end of the converter 14 is connected to the metal hose 13. , the other end is connected to the rotating tube 15, the rotating tube 15 is connected with the liquid input port 20 and the liquid output port 21 of the door 2; the metal hose 13 can move in a small range, and the rotating tube 15 can rotate around the axis, and it keeps The sealing state of the internal liquid;

During the tightening process of the door, the door shaft fixing seat 7 and the rotary joint 12 together with the metal hose 13 move along with the door 2 .

Claims (1)

1. The utility model provides a temperature-pressure comprehensive experiment case accuse temperature sealing door device, it comprises box wallboard, door frame, door-hinge fixing base, sealing ring, rotary joint, its characterized in that: the sealing ring is placed in a door frame with a groove, the door frame is welded in the center of a wall plate of the box body, the door is installed in a door shaft fixing seat on the door frame through a door shaft on the door frame, and the rotary joint is fastened on the wall plate of the box body through a screw with a spring; wherein,

the door is formed by mutually connecting a fixed seat provided with an observation window, a metal plate provided with parallel groove channels and a skin, wherein the parallel groove channels in the interlayer of the door wall enter and flow out of liquid through a liquid input port and a liquid output port to perform heat exchange circulation, and the door handle and the observation window are arranged on the outer side of the door;

the rotary joint consists of a metal hose, a converter and a rotary pipe, wherein the converter is fixed on a wall plate of a box body by four screws with springs; the metal hose is movable to a small extent, and the rotary pipe is rotatable about an axis, which maintains the sealed state of the internal liquid during rotation.

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