An energy-saving VPSA process oxygen production equipment

Abstract

The present invention belongs to the field of oxygen production equipment, and specifically relates to an energy-saving VPSA process oxygen production equipment, wherein a plug connector is provided on a heat storage tank, and the heat storage tank forms a plug-in match with a guide tube by means of the plug connector, and a correction unit is provided on the guide tube, and the correction unit comprises a base, a slider arranged on the base, a driving component and a latch, and the driving component forms a power match with the heat storage tank and controls the driving slider to move on the base, and the latch is arranged perpendicular to the moving direction of the slider, and the slider forms a limit match with the latch, and a first reset spring is connected between the base and the latch, and a through hole of the latch is provided on the slider, and a positioning groove matched with the latch is provided on the plug connector. The oxygen production equipment can realize a coaxial quick-plug connection between the heat storage tank and the guide tube to prevent leakage of the heat exchange medium.

Description

Technical Field

[0001] The invention belongs to the field of oxygen production equipment, and in particular relates to energy-saving VPSA process oxygen production equipment. Background Art

[0002] There are many types of machines required for oxygen production equipment. Before use, each machine needs to be transported to the oxygen production site for assembly, and sufficient installation and debugging time needs to be reserved. During the oxygen production process of the oxygen production equipment, oxygen compression will generate a large amount of heat. In order to reduce resource waste, technical personnel in this field have provided a heat recovery technology, which uses a heat storage tank with a heat exchange medium inside to store the heat generated by oxygen compression in the heat storage tank in the form of heat exchange. When filling or replacing the heat medium in the heat storage tank, the heat storage tank and the guide pipe need to fit tightly. If the two are tilted or not connected in place, the heat exchange medium is prone to leakage, especially when using traditional threaded connections. There is a slight deviation between the two but it can still be tightened, causing the staff to misjudge and leak the heat exchange medium. Therefore, how to prevent the leakage of the heat exchange medium when filling or replacing the heat medium is a problem that technical personnel in this field need to solve. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides an energy-saving VPSA process oxygen production equipment, which can realize the coaxial quick-plug connection between the heat storage tank and the guide pipe to prevent leakage of the heat exchange medium.

[0004] The specific technical solution adopted by the present invention is:

[0005] An energy-saving VPSA process oxygen production equipment comprises an oxygen generator, an oxygen compressor, an oxygen storage tank and a heat storage tank, wherein cooling pipes pass through the oxygen compressor and the heat storage tank respectively to form a heat exchange circulation loop, and the key point is that a plug connector is provided on the heat storage tank, and the heat storage tank forms a plug-in fit with a guide tube by means of the plug connector, and a correction unit is provided on the guide tube, and the correction unit comprises a base, a slider arranged on the base, a driving assembly and a latch, and the driving assembly forms a power fit with the heat storage tank and controls the driving slider to move on the base, and the latch is arranged perpendicular to the moving direction of the slider, and the slider forms a limit fit with the latch, and a first reset spring is connected between the base and the latch, a through hole of the latch is provided on the slider, and a positioning groove matching with the latch is provided on the plug connector.

[0006] The latch is provided with a slot, and the slider is provided with a limiting protrusion that cooperates with the slot. The slot is arranged parallel to the moving direction of the slider on the base. The distance between the end of the limiting protrusion and the front end of the slot is less than or equal to the moving length of the slider on the base. The slot and the limiting protrusion form a limiting cooperation between the slider and the latch.

[0007] The base is respectively provided with a guide groove and a pair of ejection holes, the front end of the slider forms a guide match with the guide groove, and an anti-accidental touch plate is hinged on the rear end, cantilevers are respectively provided at the left and right ends of the anti-accidental touch plate, the cantilever and the ejection hole are arranged correspondingly, the front end of the anti-accidental touch plate and the entrance side of the guide groove are arranged at a spacing, the spacing length between the front end of the anti-accidental touch plate and the entrance side of the guide groove is smaller than the moving length of the slider on the base, an elastic reset part is connected between the cantilever and the base, and a push rod is provided on the heat storage tank, and the push rod contacts the cantilever through the ejection hole to form a dynamic match.

[0008] The elastic reset member is an elastic pull rope.

[0009] A second return spring is connected between the slider and the base.

[0010] The guide pipe is provided with a convex edge, and the base is fixedly connected to the convex edge.

[0011] At least two deviation-correcting units are arranged on the flow guide pipe.

[0012] The oxygen generator, oxygen compressor, oxygen storage tank and heat storage tank are respectively installed by means of a skid-mounted bottom plate.

[0013] The beneficial effects of the present invention are:

[0014] The present invention cancels the threaded connection between the guide tube and the plug connector, and adopts a deviation correction unit to realize the connection and cooperation between the guide tube and the plug connector. The slider in the deviation correction unit forms a limit cooperation with the plug pin. A first reset spring is connected between the base and the plug pin. The slider is provided with a through hole of the plug pin, and the plug connector is provided with a positioning groove that cooperates with the plug pin. The driving component drives the slider to move. When the slider and the plug connector are separated, the plug pin pops out under the action of the first reset spring. When the pop-up length of the plug pin reaches the standard, it indicates that the plug pin is correctly inserted into the positioning groove, which indicates that the guide tube and the plug connector are coaxial and installed in place. The plug pin cooperates with the positioning groove to prevent the guide tube and the plug connector from generating relative displacement, and prevents the vibration generated when the heat exchange medium flows between the guide tube and the plug connector with the help of the pump body, causing the guide tube and the plug connector to generate displacement, thereby realizing a quick plug connection between the guide tube and the plug connector, and ensuring that the guide tube and the plug connector maintain good sealing performance.

[0015] An anti-accidental touch plate is hinged on the slider. Only when the push rod is in contact with the cantilever at the same time, the anti-accidental touch plate can enter the guide groove to make the slider and the latch have a sufficient relative position, so that the latch can be popped out, preventing the latch from being popped out due to accidental touch, and at the same time ensuring that the guide tube and the plug connector are coaxially arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2It is a schematic diagram of the connection state between the heat storage tank and the guide pipe;

[0018] Figure 3 It is a structural schematic diagram of a heat storage tank;

[0019] Figure 4 It is a structural schematic diagram of the correction unit;

[0020] Figure 5 It is a schematic diagram of the correction unit when the single-sided ejector rod is inserted into the ejection hole;

[0021] Figure 6 It is a schematic diagram of the deviation-correcting unit when the ejector rods on both sides are inserted into the ejection holes synchronously;

[0022] In the accompanying drawings, 1. oxygen concentrator, 2. oxygen compressor, 3. oxygen storage tank, 4. heat storage tank, 6. plug connector, 7. guide tube, 8. correction unit, 801. base, 802. slider, 803. latch, 804. slot, 805. limiting protrusion, 806. first reset spring, 807. guide groove, 808. ejection hole, 809. anti-incorrect touch plate, 8010. cantilever, 8011. elastic reset member, 8012. second reset spring, 9. positioning groove, 10. ejector rod, 11. convex edge, 12. pry-mounted bottom plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] Specific implementation examples Figure 1 As shown, the present invention relates to an energy-saving VPSA process oxygen production equipment, including an oxygen generator 1, an oxygen compressor 2, an oxygen storage tank 3 and a heat storage tank 4. The cooling pipe passes through the oxygen compressor 2 and the heat storage tank 4 to form a heat exchange circulation loop. The key is that Figure 2 , Figure 3 As shown, the heat storage tank 4 is provided with a plug connector 6, and the heat storage tank 4 forms a plug-in match with the guide tube 7 by means of the plug connector 6. The guide tube 7 is provided with a correction unit 8, which includes a base 801, a slider 802 arranged on the base 801, a driving assembly and a latch 803. The driving assembly forms a power match with the heat storage tank 4 and controls the slider 802 to move on the base 801. The latch 803 is arranged perpendicular to the moving direction of the slider 802. The slider 802 forms a limit match with the latch 803. A first reset spring 806 is connected between the base 801 and the latch 803. The slider 802 is provided with a through hole for the latch 803. The plug connector 6 is provided with a positioning groove 9 that cooperates with the latch 803. The latch 803 is provided with a scale line. When the latch 803 is inserted into the positioning groove 9, the scale line on the latch 803 is arranged adjacent to the side wall of the base 801, indicating that the plug connector 6 and the guide tube 7 are installed in place.

[0025] The guide pipe 7 can not only add heat exchange medium to the heat storage tank 4, but also be connected to the heating equipment so that the heat exchange medium circulates between the heat storage tank 4 and the heating equipment. The heat exchange medium exchanges heat with the cooling pipe in the heat storage tank 4. The temperature of the heat exchange medium increases, and the heat exchange medium with increased temperature enters the heating equipment to supply heat to the outside. After the temperature of the heat exchange medium decreases, it flows back to the heat storage tank 4 to continue to exchange heat with the cooling pipe. The open end of the guide pipe 7 is a step hole, and the large aperture of the guide pipe 7 is larger than the outer diameter of the plug connector 6, which is convenient for the plug connector 6 to be inserted. The small aperture of the guide pipe 7 is smaller than the outer diameter of the plug connector 6. After the end of the plug connector 6 is inserted into the guide pipe 7, it is sealed with the plane of the step hole to prevent the heat exchange medium from flowing out along the gap between the plug connector 6 and the guide pipe 7. The guide pipe 7 is provided with a through hole for the plug 803.

[0026] The guide tube 7 is coaxially plugged and fixed with the plug connector 6 with the help of the correction unit 8. Only when the guide tube 7 is coaxial with the plug connector 6 and installed in place, the pin 803 can pop out and be inserted into the positioning groove 9, so that the guide tube 7 is fixedly connected to the plug connector 6, and at the same time, the guide tube 7 is prevented from being skewed or improperly installed during the connection process between the guide tube 7 and the plug connector 6, causing leakage of heat exchange medium.

[0027] In the initial position, the first return spring 806 is in a stretched state. When the guide tube 7 is connected to the plug connector 6, the driving assembly drives the slider 802 to move on the base 801, and the slider 802 is disengaged from the latch 803. The latch 803 is reset under the action of the first return spring 806. The latch 803 is inserted into the positioning groove 9 on the plug connector 6 to achieve coaxial cooperation between the guide tube 7 and the plug connector 6. The cooperation between the latch 803 and the positioning groove 9 makes the guide tube 7 and the plug connector 6 limit each other to prevent the guide tube 7 from falling off the plug connector 6.

[0028] Further, such as Figure 4 , Figure 5 , Figure 6As shown, a slot 804 is provided on the latch 803, and a limiting protrusion 805 cooperating with the slot 804 is provided on the slider 802. The slot 804 is arranged parallel to the moving direction of the slider 802 on the base 801. The distance between the end of the limiting protrusion 805 and the front end of the slot 804 is less than or equal to the moving length of the slider 802 on the base 801. The slot 804 and the limiting protrusion 805 form a limiting cooperation between the slider 802 and the latch 803. When in the initial position, the slot 804 is engaged with the limiting protrusion 805, and the limiting protrusion 805 limits the latch 803. The slider 802 moves, and the limiting protrusion 805 falls off the slot 804. The first return spring 806 contracts, causing the latch 803 to move along the expansion and contraction direction of the first return spring 806. The latch 803 is automatically inserted into the positioning slot 9, and the end of the limiting protrusion 805 fits with the latch 803. The friction between the limiting protrusion 805 and the latch 803 and the pulling force of the first return spring 806 make it impossible for the latch 803 to be separated from the plug connector 6 without the action of external force.

[0029] Preferably, a guide groove 807 and a pair of ejection holes 808 are respectively provided on the base 801, the front end of the slider 802 forms a guide fit with the guide groove 807, and an anti-inadvertent touch plate 809 is hinged on the rear end, and cantilevers 8010 are respectively provided at the left and right ends of the anti-inadvertent touch plate 809, and the cantilever 8010 is correspondingly arranged to the ejection hole 808, and the front end of the anti-inadvertent touch plate 809 is spaced from the entrance side of the guide groove 807, and the spacing length between the front end of the anti-inadvertent touch plate 809 and the entrance side of the guide groove 807 is smaller than the moving length of the slider 802 on the base 801, an elastic reset part 8011 is connected between the cantilever 8010 and the base 801, and a push rod 10 is provided on the heat storage tank 4, and the push rod 10 contacts the cantilever 8010 through the ejection hole 808 to form a dynamic fit. The specific operation is to place the guide tube 7 above the plug connector 6 and move it downward, so that the push rod 10 is inserted into the ejection hole 808 and contacts the cantilever 8010, and the guide tube 7 continues to move downward, and the push rod 10 lifts the anti-accidental touch plate 809, and the slider 802 moves synchronously with the anti-accidental touch plate 809 with the help of the hinge shaft and separates from the pin 803, and the pin 803 positions the guide tube 7 and the plug connector 6.

[0030] If the ejector rod 10 is only inserted into the ejection hole 808 on one side of the base 801, one side of the anti-inadvertent touch plate 809 is subjected to force, and the anti-inadvertent touch plate 809 swings along its hinge axis on the slider 802, and the anti-inadvertent touch plate 809 drives the slider 802 to move toward the guide groove 807. Since the anti-inadvertent touch plate 809 swings along its hinge axis on the slider 802, one end of the anti-inadvertent touch plate 809 interferes with the side wall on the entrance side of the guide groove 807, and the anti-inadvertent touch plate 809 cannot continue to move forward, preventing the latch 803 from popping out.

[0031] When the ejector rod 10 is synchronously inserted into the ejection hole 808, the guide tube 7 and the plug connector 6 are coaxially arranged, and the ejector rod 10 pushes the cantilever 8010 at the same time, so that the anti-mistaken touch plate 809 can maintain balance and enter the guide groove 807 together with the slider 802, so that the slider 802 is separated from the pin 803.

[0032] Furthermore, an auxiliary rod is provided on the cantilever 8010 , the diameter of the auxiliary rod is smaller than the diameter of the ejection hole 808 , the end of the auxiliary rod extends into the ejection hole 808 , and the ejector rod 10 contacts the auxiliary rod to push the cantilever 8010 .

[0033] The elastic reset member 8011 is an elastic pull rope. The setting of the elastic reset member 8011 can not only enable the anti-inadvertent touch plate 809 to automatically reset after the ejector rod 10 exits the ejection hole 808, but also ensure that the anti-inadvertent touch plate 809 swings and cannot enter the guide groove 807 when a cantilever on one side of the anti-inadvertent touch plate 809 is stressed, thereby preventing the latch 803 from being ejected due to an accidental touch.

[0034] Preferably, a second return spring 8012 is connected between the slider 802 and the base 801. When the pin 803 is pulled out from the plug connector 6 to the initial position manually or mechanically, the slider 802 is reset under the action of the second return spring 8012, and the slider 802 continues to limit the plug connector 6 to prevent the plug connector 6 from falling off.

[0035] A convex edge 11 is provided on the flow guide pipe 7 , and the base 801 is fixedly connected to the convex edge 11 .

[0036] Preferably, two deviation-correcting units 8 are provided on the guide tube 7 , and the deviation-correcting units 8 are respectively provided on both sides of the guide tube 7 , so as to improve the guiding property of the guide tube 7 moving downward and ensure that the guide tube 7 moves downward smoothly.

[0037] The oxygen generator 1, the oxygen compressor 2, the oxygen storage tank 3 and the heat storage tank 4 are respectively installed by means of the skid-mounted bottom plate 12, so as to realize the skid-mounted integration of the oxygen production equipment, reduce the time of installation and debugging, and realize rapid oxygen production.

Claims

1. An energy-saving VPSA process oxygen production equipment, comprising an oxygen generator (1), an oxygen compressor (2), an oxygen storage tank (3) and a heat storage tank (4), wherein cooling pipes pass through the oxygen compressor (2) and the heat storage tank (4) to form a heat exchange circulation loop, characterized in that: The heat storage tank (4) is provided with a plug connector (6), and the heat storage tank (4) is plugged into and matched with the guide tube (7) by means of the plug connector (6). The guide tube (7) is provided with a deviation correction unit (8), and the deviation correction unit (8) comprises a base (801), a slider (802) arranged on the base (801), a driving component and a latch (803). The driving component forms a power match with the heat storage tank (4) and controls the slider (802) to move on the base (801). The latch (803) is arranged perpendicular to the moving direction of the slider (802). The slider (802) and the latch (803) form a limit match. A first return spring (806) is connected between the base (801) and the latch (803). The slider (802) is provided with a through hole for the latch (803). The plug connector (6) is provided with a positioning groove (9) that matches the latch (803). The base (801) is provided with a guide groove (807) and a pair of ejection holes (808), the front end of the slider (802) forms a guide match with the guide groove (807), and the rear end is hinged with an anti-incorrect touch plate (809), and the left and right ends of the anti-incorrect touch plate (809) are respectively provided with cantilevers (8010), the cantilever (8010) and the ejection holes (808) are arranged correspondingly, and the front end of the anti-incorrect touch plate (809) is connected to the guide groove (807). 7), the distance between the front end of the anti-mistaken touch plate (809) and the entrance side of the guide groove (807) is less than the moving length of the slider (802) on the base (801), an elastic reset member (8011) is connected between the cantilever (8010) and the base (801), and a push rod (10) is provided on the heat storage tank (4), and the push rod (10) contacts the cantilever (8010) through the ejection hole (808) to form a dynamic fit.

2. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: The latch (803) is provided with a slot (804), and the slider (802) is provided with a limiting protrusion (805) that cooperates with the slot (804). The slot (804) and the slider (802) are arranged in parallel in the moving direction of the slider (802) on the base (801). The distance between the end of the limiting protrusion (805) and the front end of the slot (804) is less than or equal to the moving length of the slider (802) on the base (801). The slot (804) and the limiting protrusion (805) form a limiting cooperation between the slider (802) and the latch (803).

3. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: The elastic reset member (8011) is an elastic pull rope.

4. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: A second return spring (8012) is connected between the slider (802) and the base (801).

5. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: The guide tube (7) is provided with a convex edge (11), and the base (801) is fixedly connected to the convex edge (11).

6. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: At least two deviation correction units (8) are arranged on the flow guide tube (7).

7. The energy-saving VPSA process oxygen production equipment according to claim 1, characterized in that: The oxygen generator (1), oxygen compressor (2), oxygen storage tank (3) and heat storage tank (4) are respectively installed by means of a skid-mounted bottom plate (12).

Images