CN210571146U

CN210571146U - Novel binary internal pressure detection screening device

Info

Publication number: CN210571146U
Application number: CN201921342899.XU
Authority: CN
Inventors: 张国新
Original assignee: Wuhan Jieruishi Electromechanical Co Ltd
Current assignee: Wuhan Jieruishi Electromechanical Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-19
Anticipated expiration: 2029-08-19

Abstract

The utility model belongs to the technical field of the jar internal pressure detection technique and specifically relates to a novel pressure detection screening is pressed to binary device, including gas storage chamber, sealed chamber, piston chamber and pressure measurement chamber, the gas storage chamber is vertical to be fixed on sealed chamber top, and gas storage chamber and sealed chamber intercommunication, the gas storage chamber with sealed chamber junction is sealed with first O type circle, the vertical cylinder connection silk mouth of having seted up in gas storage chamber up end middle part, and gas storage chamber one side level has seted up carbon dioxide inlet channel, and the pressure measurement passageway has been seted up to the opposite side level, carbon dioxide inlet channel is in on the same straight line with pressure measurement passageway axis, the sealed chamber is vertical to be fixed on piston chamber top, and sealed chamber and piston chamber intercommunication, sealed chamber is sealed through second O type circle with piston chamber junction, the control pressure measurement passageway has been seted up to sealed chamber one side middle part level. The pressure is tested by releasing the pressure from the inside of the tank to the outside of the tank, and the pressure in the binary aerosol product is tested by releasing the pressure from the outside of the tank to the inside of the tank.

Description

Novel binary internal pressure detection screening device

Technical Field

The utility model relates to a jar internal pressure detects technical field, especially relates to a novel pressure detection screening in binary device.

Background

The existing conventional device for measuring the pressure in the tank has the defects that:

1. the conventional pressure measuring device in the tank releases part of raw materials when measuring pressure each time, so that the pressure measuring device is polluted;

2. the pressure loss of the pressure measuring device (gas or liquid) is 0.2-0.5% every time the pressure measuring device works;

3. pressure relief (vacuum pumping) needs to be carried out on the interior of the pressure measuring device after pressure measurement is finished, the air consumption is high, the working process is complex, and the efficiency is low.

4. The pressure measuring device also needs to collect pressure relief raw materials (liquid), otherwise, the environment pollution can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel binary internal pressure detection screening device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel binary internal pressure detection screening device comprises a gas storage cavity, a sealing cavity, a piston cavity and a pressure measurement cavity, wherein the gas storage cavity is vertically fixed at the top end of the sealing cavity and is communicated with the sealing cavity, the joint of the gas storage cavity and the sealing cavity is sealed by a first O-shaped ring, a cylinder connecting screw port is vertically arranged in the middle of the upper end surface of the gas storage cavity, a carbon dioxide inlet channel is horizontally arranged on one side of the gas storage cavity, a pressure measurement channel is horizontally arranged on the other side of the gas storage cavity, the carbon dioxide inlet channel and the central axis of the pressure measurement channel are in the same straight line, the sealing cavity is vertically fixed at the top end of the piston cavity and is communicated with the piston cavity, the joint of the sealing cavity and the piston cavity is sealed by a second O-shaped ring, a pressure measurement control channel is horizontally arranged in the middle of one side of the sealing cavity, the pressure, the middle part of the control valve rod is horizontally provided with two third O-shaped rings at intervals, the third O-shaped rings are tightly attached to the inner wall of a piston cavity, the top end of the control valve rod extends into a sealing cavity, the top end of the control valve rod is sleeved with a polytetrafluoroethylene plug, the outer wall of the top part of the control valve rod is lined with a flooding ring, the lower end surface of the sealing cavity is fixed with a flooding ring fixing ring, the flooding ring fixing ring is sleeved at the top part of the control valve rod, the flooding ring fixing ring is compacted at the lower end surface of the flooding ring, the bottom end of the piston cavity is vertically arranged in a pressure measuring cavity, the bottom end of the control valve rod vertically extends into the pressure measuring cavity, the outer wall of the bottom part of the control valve rod is provided with a fourth O-shaped ring, the fourth O-shaped ring is tightly attached to the inner side wall of the pressure measuring cavity, the bottom part of the control valve rod is sleeved with a return spring, polyurethane gaskets are placed on the bottom surface inside the pressure measuring cavity, guide springs are symmetrically installed on two sides of the bottom of the pressure measuring cavity, the guide springs are vertically arranged, and the bottom ends of the guide springs are symmetrically fixed on two sides of the upper surface of the guide block.

Preferably, a pressure sensor is installed on the pressure measuring channel, a channel valve is installed on the air inlet channel, and a constant-pressure nitrogen air bag is formed after nitrogen is connected to the air inlet channel.

Preferably, the constant-pressure nitrogen balloon storage pressure is 1 Mpa.

The utility model provides a pair of novel interior pressure detection screening of binary device, beneficial effect lies in:

1. the pressure is tested by releasing the pressure from the inside of the tank to the outside of the tank, and the pressure in the binary aerosol product is tested by releasing the pressure from the outside of the tank to the inside of the tank;

2. compared with the conventional pressure measuring device, the novel binary internal pressure detection screening device can not lose pressure;

3. the nitrogen is filled into the tank to measure the pressure difference, and the method is economical and practical. The air consumption of compressed air is reduced. Compare conventional pressure measurement device and reduce the process, raise the efficiency, lifting means stability.

Drawings

Fig. 1 is the utility model provides a novel pressure detects screening in binary device's schematic structure diagram.

In the figure: the pressure measuring device comprises a gas storage cavity 1, a first O-shaped ring 2, a sealing cavity 3, a second O-shaped ring 4, a third O-shaped ring 5, a piston cavity 6, a pressure measuring cavity 7, a fourth O-shaped ring 8, a polyurethane gasket 9, a guide block 10, a polytetrafluoroethylene plug 11, a universal plug ring 12, a universal plug ring fixing ring 13, a control valve rod 14, a return spring 15, a spring stroke adjusting block 16, a guide spring 17, a cylinder connecting screw port 18, a carbon dioxide gas inlet channel 19, a pressure measuring channel 20 and a pressure measuring channel 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, a novel binary internal pressure detection screening device comprises a gas storage cavity 1, a seal cavity 3, a piston cavity 6 and a pressure measurement cavity 7, wherein the gas storage cavity 1 is vertically fixed at the top end of the seal cavity 3, the gas storage cavity 1 is communicated with the sealing cavity 3, the joint of the gas storage cavity 1 and the sealing cavity 3 is sealed by a first O-shaped ring 2, the middle part of the upper end surface of the gas storage cavity 1 is vertically provided with a cylinder connecting screw port 18, and one side of the gas storage cavity 1 is horizontally provided with a carbon dioxide gas inlet channel 19, the other side is horizontally provided with a pressure measuring channel 20, the central axes of the carbon dioxide gas inlet channel 19 and the pressure measuring channel 20 are positioned on the same straight line, the sealing cavity 3 is vertically fixed at the top end of the piston cavity 6, the sealing cavity 3 is communicated with the piston cavity 6, the joint of the sealing cavity 3 and the piston cavity 6 is sealed by the second O-shaped ring 4, the middle part of one side of the sealing cavity 3 is horizontally provided with a control pressure measuring channel 21, and the control pressure measuring channel 21 is communicated with the piston cavity 6;

a control valve rod 14 is vertically placed in the piston cavity 6, two third O-shaped rings 5 are horizontally placed in the middle of the control valve rod 14 at intervals, the third O-shaped rings 5 are tightly attached to the inner wall of the piston cavity 6, the top end of the control valve rod 14 extends into the sealing cavity 3, a polytetrafluoroethylene plug 11 is sleeved at the top end of the control valve rod 14, a flooding ring 12 is lined on the outer wall of the top of the control valve rod 14, a flooding ring fixing ring 13 is fixed on the lower end face of the sealing cavity 3, the flooding ring fixing ring 13 is sleeved at the top of the control valve rod 14, and the flooding ring fixing ring 13 is compacted on the lower end face of the flooding ring 12;

the vertical setting in the pressure measurement chamber 7 in 6 bottoms in piston chamber, the vertical extension in control valve rod 14 bottom extends to in the pressure measurement chamber 7, be equipped with fourth O type circle 8 on the outer wall of control valve rod 14 bottom, fourth O type circle 8 hugs closely on the pressure measurement chamber 7 inside wall, 14 bottom covers of control valve rod are equipped with reset spring 15, reset spring 15 is located fourth O type circle 8 top, and be equipped with spring stroke regulating block 16 on the control valve rod 14 between reset spring 15 and the fourth O type circle 8, polyurethane gasket 9 has been laid to the inside bottom surface in

pressure measurement chamber

7, 7 bottom bilateral symmetry in pressure measurement chamber installs guide spring 17, the vertical setting of guide spring 17, and guide spring 17 bottom symmetry fixes 10 upper surface both sides of guide block.

The specific use method of the combination example is as follows:

1. the novel binary internal pressure detection screening device is arranged on a cylinder corresponding to the novel binary internal pressure detection screening device, a pressure sensor is arranged on a pressure measuring channel 20, nitrogen is connected to a nitrogen inlet channel, and a channel valve is added to the nitrogen inlet channel to form a small constant-pressure nitrogen airbag.

2. Novel two-dimensional internal pressure detection sieving mechanism stores 1Mpa pressure in the nitrogen gas gasbag during operation, and the cylinder drives the whole down of novel two-dimensional internal pressure detection sieving mechanism, and guide block 10 location aerosol canister guide spring line 17 journey is compressed, and polyurethane gasket 9 contacts and seals with the aerosol canister valve, and control pressure measurement passageway 21 air inlet control valve rod 14 moves down, and polytetrafluoroethylene end cap (11) are opened, and the aerosol canister valve is opened to nitrogen gas, and the valve is intake until atmospheric pressure no longer changes. And the pressure sensor feeds the final pressure back to the PLC to obtain the pressure of the aerosol can, and the pressure measurement is completed. Control pressure measurement passageway 21 is disconnected gas, and control valve rod 14 is reset by reset spring 15, and the cylinder drives novel binary internal pressure and detects the sieving mechanism wholly and goes upward, and the guide block 10 guide spring is gone 17 and is reset, and nitrogen gas inlet channel goes up the channel valve, opens gas storage chamber 1 atmospheric pressure and reaches 1Mpa again, waits for next work.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel binary internal pressure detects screening device, includes gas storage chamber (1), sealed chamber (3), piston chamber (6) and pressure measurement chamber (7), its characterized in that: the gas storage cavity (1) is vertically fixed at the top end of the sealing cavity (3), the gas storage cavity (1) is communicated with the sealing cavity (3), the joint of the gas storage cavity (1) and the sealing cavity (3) is sealed by a first O-shaped ring (2), a cylinder connecting screw port (18) is vertically formed in the middle of the upper end face of the gas storage cavity (1), a carbon dioxide inlet channel (19) is horizontally formed in one side of the gas storage cavity (1), a pressure measuring channel (20) is horizontally formed in the other side of the gas storage cavity, the central axes of the carbon dioxide inlet channel (19) and the pressure measuring channel (20) are in the same straight line, the sealing cavity (3) is vertically fixed at the top end of the piston cavity (6), the sealing cavity (3) is communicated with the piston cavity (6), the joint of the sealing cavity (3) and the piston cavity (6) is sealed by a second O-shaped ring (4), a control pressure measuring channel (21) is horizontally formed, the control pressure measuring channel (21) is communicated with the piston cavity (6), a control valve rod (14) is vertically placed in the piston cavity (6), two third O-shaped rings (5) are horizontally placed in the middle of the control valve rod (14) at intervals, the third O-shaped rings (5) are tightly attached to the inner wall of the piston cavity (6), the top end of the control valve rod (14) extends into the sealing cavity (3), a polytetrafluoroethylene plug (11) is sleeved at the top end of the control valve rod (14), a flooding ring (12) is lined on the outer wall of the top of the control valve rod (14), a flooding ring fixing ring (13) is fixed on the lower end face of the sealing cavity (3), the flooding ring fixing ring (13) is sleeved at the top of the control valve rod (14), the flooding ring fixing ring (13) is compacted on the lower end face of the flooding ring (12), the bottom end of the piston cavity (6) is vertically arranged in the pressure measuring cavity (7), the utility model discloses a pressure measuring device, including control valve rod (14), pressure measuring chamber (7), control valve rod (14) bottom, be equipped with fourth O type circle (8) on the outer wall of control valve rod (14) bottom, fourth O type circle (8) hug closely on pressure measuring chamber (7) inside wall, control valve rod (14) bottom cover is equipped with reset spring (15), reset spring (15) are located fourth O type circle (8) top, just reset spring (15) with be equipped with spring stroke regulating block (16) on control valve rod (14) between fourth O type circle (8), polyurethane gasket (9) have been laid to pressure measuring chamber (7) inside bottom surface, guide spring (17) are installed to pressure measuring chamber (7) bottom bilateral symmetry, the vertical setting of guide spring (17), just guide spring (17) bottom symmetry fixes in guide block (10) upper surface both sides.

2. The novel binary internal pressure detection screening device as claimed in claim 1, wherein a pressure sensor is installed on the pressure measurement channel (20), a channel valve is installed on the air inlet channel, and a constant-pressure nitrogen gas bag is formed after nitrogen is introduced into the air inlet channel.

3. The novel binary internal pressure detection screening device of claim 2, wherein the constant pressure nitrogen air bag storage pressure is 1 Mpa.