Integrated module valve and oxygen generator adopting same

Abstract

The utility model belongs to the technical field of oxygen generators, and particularly relates to an integrated module valve and an oxygen generator adopting the integrated module valve. The integrated module valve comprises a valve main body and a valve main circuit board; seven main gas paths and four branch gas paths are arranged in the valve main body; an opening, on the valve main body, of the first main gas path is connected with a gas inlet of the adsorption tower A; an opening of the second main gas circuit on the valve main body is connected with a gas inlet of an adsorption tower B; an opening of the fourth main gas circuit on the valve main body is connected with a gas outlet of an adsorption tower B; an opening of the sixth main gas circuit on the valve main body is connected with a gas outlet of the adsorption tower A; a connector of the first branch gas circuit is connected with a silencer, a connector of the second branch gas circuit is connected with a gas inlet pipeline, a connector of the third branch gas circuit is connected with an oxygen production pipeline, and a connector of the fourth branch gas circuit is connected with an oxygen tank. The utility model solves the problems of complex structure and inconvenience in installation caused by the need of arranging a plurality of separated valve groups with different functions when the adsorption tower is connected in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oxygen generator, specifically relates to an integrated module valve and oxygen generator adopting the integrated module valve. BACKGROUND

[0002] The existing molecular sieve oxygen production main machine is often composed of two adsorption towers (A tower and B tower) provided with molecular sieve adsorbents and guide gas pipeline valve groups. The low-temperature high-pressure compressed air enters from the bottom of the A tower, when flowing through the adsorbent layer, nitrogen, carbon dioxide and water vapor in the air are adsorbed, and oxygen is collected to the top of the adsorption tower as product gas and is output. At the same time, after the B tower discharges waste gas, it reaches the state of oxygen production again, when the adsorption tower A reaches the adsorption saturation, the low-temperature high-pressure air enters the B tower to start adsorption and oxygen production under the regulation of the control system. The A tower and the B tower realize the purpose of continuous oxygen production by alternating.

[0003] Chinese patent CN 219530573 U discloses an oxygen generator integrated valve group, which sets up a gas path channel on the valve body, integrates the electromagnetic valve with the valve body, and connects the inlet and outlet gas pipelines of the adsorption tower to guide the gas. The patent only uses the oxygen produced in one adsorption tower to directly blow into another adsorption tower, and the oxygen in the finished gas tank cannot be blown back into the adsorption tower. After equalization (A and B towers are connected to make the pressure consistent), the adsorption tower for preparing oxygen cannot continue to be pressurized to improve the oxygen production efficiency of the molecular sieve. In addition, although the patent integrates the inlet valve group, oxygen production valve group, equalization valve group and cleaning valve group on the valve body, it still needs to connect the exhaust valve group at the adsorption tower, which is still inconvenient to install.

[0004] In view of the above-mentioned shortcomings of the prior art, it is still necessary to develop an integrated module valve with higher integration and convenient installation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an integrated module valve, which solves the problem that the adsorption rate of the molecular sieve cannot be improved by pressurization after equalization, and solves the problem that the structure is complex and inconvenient to install due to the need to set multiple valve groups with different functions when connecting the adsorption tower in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An integrated module valve, the module valve comprises a valve main body and a valve main circuit board;

[0008] The valve main body is provided with a first main gas path, a second main gas path, a third main gas path, a fourth main gas path, a fifth main gas path, a sixth main gas path and a seventh main gas path, and a first branch gas path, a second branch gas path, a third branch gas path and a fourth branch gas path;

[0009] The first main gas path passes through the first branch gas path and the second branch gas path, one end of the first main gas path is communicated with the fifth main gas path, and the other end is an opening on the valve body;

[0010] The second main gas path passes through the first branch gas path and the second branch gas path, one end of the second main gas path is communicated with the third main gas path, and the other end is an opening on the valve body;

[0011] One end of the third main gas path is an opening on the valve body, and the other end is communicated with the seventh main gas path through a channel in the valve main path plate;

[0012] The fourth main gas path passes through the third branch gas path and the fourth branch gas path, one end of the fourth main gas path is communicated with the fifth main gas path, and the other end is an opening on the valve body;

[0013] One end of the fifth main gas path is communicated with the fourth main gas path in the valve body, and the other end is an opening on the valve body;

[0014] The sixth main gas path passes through the third branch gas path and the fourth branch gas path, one end of the sixth main gas path is communicated with the seventh main gas path, and the other end is an opening on the valve body;

[0015] One end of the seventh main gas path is an opening on the valve body, and the other end is communicated with the third main gas path through a channel in the valve main path plate;

[0016] Both ends of the first branch gas path, the second branch gas path, the third branch gas path and the fourth branch gas path are opened on the valve body, and a connecting port communicated with the outside of the valve body is arranged on the first branch gas path, the second branch gas path, the third branch gas path and the fourth branch gas path respectively.

[0017] Preferably, the first main gas path and the second main gas path are arranged symmetrically left and right in the valve body, and the first main gas path and the second main gas path are arranged in the upper half of the valve body.

[0018] Preferably, the fourth main gas path and the sixth main gas path are arranged symmetrically left and right in the valve body, and the fourth main gas path and the sixth main gas path are arranged in the lower half of the valve body.

[0019] Preferably, the first branch gas path and the second branch gas path are arranged in parallel up and down in the upper half of the valve body.

[0020] Preferably, the third branch gas path and the fourth branch gas path are arranged in parallel up and down in the lower half of the valve body.

[0021] Preferably, the third main gas path, the fifth branch gas path and the seventh main gas path are arranged in parallel in the middle of the valve body, and the fifth main gas path is located between the third main gas path and the seventh main gas path.

[0022] The first main gas path is connected with the gas inlet of the adsorption tower A through the opening on the valve body, the second main gas path is connected with the gas inlet of the adsorption tower B through the opening on the valve body, the fourth main gas path is connected with the gas outlet of the adsorption tower A through the opening on the valve body, and the sixth main gas path is connected with the gas outlet of the adsorption tower B through the opening on the valve body.

[0023] The connecting port of the first branch gas path is connected with the muffler, the connecting port of the second branch gas path is connected with the gas inlet pipe, the connecting port of the third branch gas path is connected with the oxygen production pipe and further connected with the oxygen tank, and the connecting port of the fourth branch gas path is connected with the oxygen tank.

[0024] Preferably, the third main gas path, the fifth main gas path, the seventh main gas path, the first branch gas path, the second branch gas path, the third branch gas path and the fourth branch gas path are respectively connected with control valves through the openings on the valve body.

[0025] Further preferably, the control valve is an angle valve, an electromagnetic valve or a pneumatic cylinder.

[0026] The on-off of the gas path is controlled by controlling the reciprocating motion of the angle valve, the electromagnetic valve or the pneumatic cylinder.

[0027] Compared with the prior art, the utility model has the advantages of:

[0028] The control valve and the pipe are integrated, the production and installation efficiency is improved, the finished product in the oxygen tank can be back blown into the adsorption tank, the nitrogen can be discharged, the adsorption tank can be pressurized, the adsorption efficiency of the molecular sieve in the adsorption tower is improved, the oxygen production concentration is improved, the exhaust pipe and the muffler are integrated into the module valve, the production and installation efficiency is improved, the gas path arrangement position and the layout mode on the valve main plate can be changed, and the gas paths for inhaling, producing oxygen, equalizing pressure, cleaning and exhausting are integrated. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the structure schematic view of the module valve of the utility model;

[0030] Figure 2 It is the internal perspective view of the module valve of the utility model;

[0031] Figure 3 It is the exhaust gas path view of the module valve of the utility model;

[0032] Figure 4 It is the intake gas path view of the module valve of the utility model;

[0033] Figure 5 It is the equalizing pressure gas path view of the module valve of the utility model;

[0034] Figure 6 It is the cleaning gas path view of the module valve of the utility model;

[0035] Figure 7 This is the oxygen generation circuit diagram of the modular valve of this utility model;

[0036] Figure label:

[0037] 1. Valve body; 2. Valve main circuit board; 3. Control valve; 4. Plug;

[0038] 101. First main airway; 102. Second main airway; 103. Third main airway; 104. Fourth main airway; 105. Fifth main airway; 106. Sixth main airway; 107. Seventh main airway;

[0039] 201. First gas path; 202. Second gas path; 203. Third gas path; 204. Fourth gas path; 205. Nitrogen vent; 206. Air inlet; 207. Oxygen outlet; 208. Backflush oxygen inlet;

[0040] 301. First control valve; 302. Second control valve; 303. Third control valve; 304. Fourth control valve; 305. Fifth control valve; 306. Sixth control valve; 307. Seventh control valve; 308. Eighth control valve; 309. Ninth control valve; 310. Tenth control valve. Detailed Implementation

[0041] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0042] Example 1

[0043] like Figures 1-3 As shown, an integrated modular valve includes a valve body 1 and a valve main circuit plate 2;

[0044] The valve body 1 is provided with a first main air passage 101, a second main air passage 102, a third main air passage 103, a fourth main air passage 104, a fifth main air passage 105, a sixth main air passage 106 and a seventh main air passage 107, as well as a first branch air passage 201, a second branch air passage 202, a third branch air passage 203 and a fourth branch air passage 204.

[0045] The first main gas passage 101 connects to the first branch gas passage 201 and the second branch gas passage 202. One end of the first main gas passage 101 is connected to the fifth main gas passage 105, and the other end is an opening on the valve body, which is connected to the inlet pipe of the adsorption tower A.

[0046] The second main gas passage 102 connects the first branch gas passage 201 and the second branch gas passage 202. One end of the second main gas passage 102 is connected to the third main gas passage 103, and the other end is an opening on the valve body, which is connected to the gas inlet pipe of the adsorption tower B.

[0047] One end of the third main gas path 103 is an opening on the valve body, and a tenth control valve 310 is arranged at the opening, which controls the communication between the second main gas path 102 and the third main gas path 103; the other end communicates with the seventh main gas path 107 through a channel in the valve main path plate 2;

[0048] The fourth main gas path 104 penetrates the third branch gas path 203 and the fourth branch gas path 204, and one end of the fourth main gas path 104 communicates with the fifth main gas path 105, and the other end is an opening on the valve body, which is connected to the gas outlet pipeline of the adsorption tower B;

[0049] One end of the fifth main gas path 105 communicates with one end of the fourth main gas path 104 in the valve body, and the other end is an opening on the valve body, and a ninth control valve 309 is arranged at the opening, which controls the communication between the first main gas path 101 and the fifth main gas path 105;

[0050] The sixth main gas path 106 penetrates the third branch gas path 203 and the fourth branch gas path 204, and one end of the sixth main gas path 106 communicates with the seventh main gas path 107, and the other end is an opening on the valve body, which is connected to the gas outlet pipeline of the adsorption tower A;

[0051] One end of the seventh main gas path 107 is an opening on the valve body, which can be closed by a plug, and the other end communicates with the third main gas path 103 through a channel in the valve main path plate 2;

[0052] Both ends of the first branch gas path 201, the second branch gas path 202, the third branch gas path 203 and the fourth branch gas path 204 are opened on the valve body, and a connecting port outside the valve body 1 is arranged on each of the first branch gas path 201, the second branch gas path 202, the third branch gas path 203 and the fourth branch gas path 204.

[0053] The openings of the third main gas path 103, the fifth main gas path 105, the first branch gas path 201, the second branch gas path 202, the third branch gas path 203 and the fourth branch gas path 204 on the valve body are respectively connected to the control valve 3.

[0054] Specifically, the openings of both ends of the first branch gas path 201 on the valve body are respectively provided with the first control valve 301 and the second control valve 302, wherein the first control valve 301 controls the communication between the first main gas path 101 and the first branch gas path 201, and the second control valve 302 controls the communication between the second main gas path 102 and the first branch gas path 201.

[0055] The openings of the second branch gas path 202 at both ends of the gas path on the valve body are respectively provided with a third control valve 303 and a fourth control valve 304, wherein the third control valve 303 controls the communication of the first main gas path 101 and the second branch gas path 202, and the fourth control valve 304 controls the communication of the second main gas path 102 and the second branch gas path 202.

[0056] The openings of the third branch gas path 203 at both ends of the gas path on the valve body are respectively provided with a fifth control valve 305 and a sixth control valve 306, wherein the fifth control valve 305 controls the communication of the sixth main gas path 106 and the third branch gas path 203, and the sixth control valve 306 controls the communication of the fourth main gas path 104 and the third branch gas path 203.

[0057] The openings of the fourth branch gas path 204 at both ends of the gas path on the valve body are respectively provided with a seventh control valve 307 and an eighth control valve 308, wherein the seventh control valve 307 controls the communication of the sixth main gas path 106 and the fourth branch gas path 204, and the eighth control valve 308 controls the communication of the fourth main gas path 104 and the fourth branch gas path 204.

[0058] The connecting port on the first branch gas path 201 is a nitrogen discharge port 205, which is connected to a silencer; the connecting port on the second branch gas path 202 is an air inlet port 206; the connecting port on the third branch gas path 203 is an oxygen outlet port 207, which is connected to an oxygen tank; and the connecting port on the fourth branch gas path 204 is a backflushing oxygen inlet port 208, which is connected to an oxygen tank.

[0059] The first main gas path 101 and the second main gas path 102 are arranged in a left-right opposite manner in the valve body, and the first main gas path 101 and the second main gas path 102 are arranged in the upper half of the valve body.

[0060] The fourth main gas path 104 and the sixth main gas path 106 are arranged in a left-right opposite manner in the valve body, and the fourth main gas path 104 and the sixth main gas path 106 are arranged in the lower half of the valve body.

[0061] The first branch gas path 201 and the second branch gas path 202 are arranged in a parallel manner in the upper half of the valve body.

[0062] The third branch gas path 203 and the fourth branch gas path 204 are arranged in a parallel manner in the lower half of the valve body.

[0063] The third main gas path 103, the fifth branch gas path 105 and the seventh main gas path 107 are arranged in a parallel manner in the middle of the valve body, and the fifth branch gas path 105 is located between the third main gas path 103 and the seventh main gas path 107.

[0064] The valve main body contains 7 main gas paths and 4 branch gas paths, that is, 11 gas paths in total. The valve main path plate 2 connects the third main gas path 103 and the seventh main gas path 107 of the valve main body 2. The first main gas path 101 and the second main gas path 102 of the valve main body 1 are connected with the gas inlet pipe of the adsorption towers A and B respectively, and the sixth main gas path 106 and the fourth main gas path 104 are connected with the gas outlet pipe of the adsorption towers A and B respectively. The second branch gas path 202 is a gas inlet path, and a connecting port is arranged in the middle of the second branch gas path 202 and used for connecting the gas inlet pipe to deliver compressed air to the adsorption tower. The third branch gas path 203 is an oxygen production path, and a connecting port is arranged in the middle of the third branch gas path 203 and used for connecting the oxygen production pipe to deliver the oxygen produced in the adsorption tower to the oxygen tank. The fourth branch gas path 204 is a cleaning path, and a connecting port is arranged in the middle of the fourth branch gas path 204 and used for connecting the oxygen tank to blow the finished product gas into the adsorption tower. The first branch gas path 201 is an exhaust path, and a connecting port is arranged in the middle of the first branch gas path 201 and connected with the muffler to exhaust the nitrogen in the adsorption tower. In the internal passage of the valve main path plate 2, an opening can be arranged, the opening can be connected with other oxygen generator components, or a plug 4 can be used for plugging.

[0065] The molecular sieve in the adsorption tower plays a role of adsorbing nitrogen and producing oxygen. The adsorption capacity and adsorption rate of the molecular sieve are affected by the pressure, and the greater the pressure is, the greater the adsorption capacity and adsorption rate of the molecular sieve are. In the embodiment, the cleaning valve group is integrated on the module valve main body, and the finished product oxygen in the oxygen tank is introduced into the adsorption tower to increase the pressure in the adsorption tower and improve the adsorption capacity and adsorption rate of the molecular sieve.

[0066] An oxygen generator, which adopts an integrated module valve to connect gas paths.

[0067] Taking one side of the adsorption tower A (tower A) as an example, the gas path diagram when each valve is opened is as follows Figures 3-7

[0068] The first control valve 301 is an exhaust valve, and the gas path when the first control valve 301 is opened is as follows Figure 3 , nitrogen is exhausted from the adsorption tower A, along the first main gas path 101 and the first branch gas path 201, enters the muffler from the nitrogen exhaust port on the first branch gas path 201, and is then exhausted into the air.

[0069] The third control valve 303 is an inlet valve, and the gas path when the third control valve 303 is opened is as follows Figure 4 , compressed air enters the second branch gas path 202 through the air inlet port 206 on the second branch gas path 202, and then enters the adsorption tower A through the first main gas path 101.

[0070] The ninth control valve 309 is an equalizing valve, and the gas path when the ninth control valve 309 is opened is as follows Figure 5 , after the adsorption tower A finishes producing oxygen, oxygen enters the adsorption tower B along the first main gas path 101, the fifth main gas path 105 and the fourth main gas path 104. ​

[0071] The seventh control valve 307 is a purge valve, and when opened, the gas path is as follows Figure 6 The oxygen in the oxygen tank enters the adsorption tower A through the fourth branch gas path 204 and the sixth main gas path 106 from the back-blowing oxygen inlet 208.

[0072] The fifth control valve 305 is an oxygen production valve, and when opened, the gas path is as follows Figure 7 The oxygen produced in the adsorption tower A enters the oxygen tank from the oxygen outlet 207 through the sixth main gas path 106 and the third branch gas path 203.

[0073] Similarly, the valves on the side of the adsorption tower B (tower B) and the gas path when opened correspond to those on the side of the adsorption tower A.

[0074] The contents not described in detail in the utility model can adopt the conventional technical knowledge in the field.

[0075] Finally, it should be pointed out that the above examples are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and they should be covered in the scope of the claims of the utility model.

Claims

1. An integrated modular valve characterized by, The module valve comprises a valve body and a valve main board; The valve body is provided with first, second, third, fourth, fifth, sixth and seventh main gas paths and first, second, third and fourth branch gas paths; The first main gas path penetrates the first and second branch gas paths, one end of the first main gas path is communicated with the fifth main gas path, and the other end is an opening on the valve body; The second main gas path penetrates the first and second branch gas paths, one end of the second main gas path is communicated with the third main gas path, and the other end is an opening on the valve body; One end of the third main gas path is an opening on the valve body, and the other end is communicated with the seventh main gas path through a channel in the valve main board; The fourth main gas path penetrates the third and fourth branch gas paths, one end of the fourth main gas path is communicated with the fifth main gas path, and the other end is an opening on the valve body; One end of the fifth main gas path is communicated with the fourth main gas path in the valve body, and the other end is an opening on the valve body; The sixth main gas path penetrates the third and fourth branch gas paths, one end of the sixth main gas path is communicated with the seventh main gas path, and the other end is an opening on the valve body; One end of the seventh main gas path is an opening on the valve body, and the other end is communicated with the third main gas path through a channel in the valve main board; Both ends of the first, second, third and fourth branch gas paths are opened on the valve body, and a connecting port communicated with the outside of the valve body is arranged on the first, second, third and fourth branch gas paths respectively.

2. The integrated modular valve of claim 1, wherein, The first and second main gas paths are arranged in left and right opposition in the valve body, and the first and second main gas paths are arranged in the upper half of the valve body.

3. The integrated modular valve of claim 1, wherein, The fourth and sixth main gas paths are arranged in left and right symmetry in the valve body, and the fourth and sixth main gas paths are arranged in the lower half of the valve body.

4. The integrated modular valve of claim 1, wherein, The first and second branch gas paths are arranged in parallel in the upper half of the valve body.

5. The integrated modular valve of claim 1, wherein, The third and fourth branch gas paths are arranged in parallel in the lower half of the valve body.

6. The integrated modular valve of claim 1, wherein, The third, fifth and seventh main gas paths are arranged in parallel in the middle of the valve body, and the fifth main gas path is located between the third and seventh main gas paths.

7. The integrated modular valve of claim 1, wherein, The opening of the first main gas path on the valve body is connected with the gas inlet of the adsorption tower A; the opening of the second main gas path on the valve body is connected with the gas inlet of the adsorption tower B; the opening of the fourth main gas path on the valve body is connected with the gas outlet of the adsorption tower A; and the opening of the sixth main gas path on the valve body is connected with the gas outlet of the adsorption tower B. The connecting port of the first branch gas path is connected with a silencer, the connecting port of the second branch gas path is connected with a gas inlet pipeline, the connecting port of the third branch gas path is connected with an oxygen production pipeline and further connected with an oxygen tank, and the connecting port of the fourth branch gas path is connected with the oxygen tank.

8. The integrated modular valve of claim 1, wherein, The openings of the third, fifth, seventh main gas paths, the first, second, third and fourth branch gas paths on the valve body are respectively connected with control valves.

9. The integrated modular valve of claim 8, wherein, The control valve is an angle valve, a solenoid valve or a gas cylinder.

10. An oxygen generator, characterized by comprising: The oxygen generator comprises the integrated module valve according to any one of claims 1-9.

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