Inert gas injection pump

Abstract

The utility model relates to the technical field of injection pumps, in particular to an inert gas injection pump which comprises an injection pump body, a mixing cavity located on the upper portion of the injection pump body is formed in the injection pump body, and a temperature control cavity located on the lower portion of the injection pump body is formed in the injection pump body. A feeding pipe communicating with the mixing cavity is fixedly installed on the side wall of the injection pump body, a nozzle is fixedly installed at the bottom of the nitrogen inlet, an annular pipe communicating with the feeding pipe is fixedly installed at the end of the feeding pipe, and four connecting pipes which are circumferentially arranged at equal intervals and communicate with the annular pipe are fixedly installed in the annular pipe. Nitrogen rapidly circulates in the nozzle through the pneumatic conveying device, then propionyl chloride passes through the interior of the conical pipe through the difference between the internal atmospheric pressure and the external atmospheric pressure, the propionyl chloride is further pressurized through the pneumatic conveying device, the cavity effect is formed when the propionyl chloride passes through the interior of the conical pipe, and solute and solution in the propionyl chloride are fully stirred and mixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a jet pump technical field especially relates to a kind of inert gas jet pumps. BACKGROUND

[0002] Jet pump is a fluid power pump. Fluid power pump has no mechanical transmission and mechanical working member, it is powered by the energy of another working fluid to transport low-energy liquid, and it has good safety when used to pump flammable and explosive materials.

[0003] And prior art is more such as the energy-saving type adhesion-increasing vacuum jet pump of the public number CN218509821U, including air inlet pipe, the air inlet pipe right side end is equipped with mixing pipe, the mixing pipe right side end is equipped with connecting pipe one, the connecting pipe one right side end is equipped with connecting pipe two, the connecting pipe two right side end is equipped with connecting pipe three, the round pipe inside is equipped with nozzle, this technology is accelerated to fluid in pipe by the improvement to jet pipe, fluid flow rate is faster, reduces the power of motor operation, reduces the cost of investment, saves energy, more in line with energy-saving and environmental protection requirement, increases the practicability of adhesion-increasing vacuum jet pump, more in line with actual use demand, but there are still the following problems in use:

[0004] The above-mentioned technology is accelerated to fluid by the improvement to jet pipe when in use, but cannot make fluid fully mixed, so that the fluid solution and solute sprayed by jet pipe are unevenly distributed, affecting the jet quality of vacuum pump. INVENTION CONTENTS

[0005] The utility model aims at solving the problem that fluid in the vacuum pump cannot be fully mixed in the prior art, and provides an inert gas jet pump.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] An inert gas jet pump, comprising a jet pump body, a mixing chamber located at the upper part of the jet pump body is formed in the jet pump body, a temperature control chamber located at the lower part of the jet pump body is formed in the jet pump body, a feed pipe in communication with the mixing chamber is fixedly installed on the side wall of the jet pump body, a nitrogen inlet is fixedly installed at the center position of the upper part of the jet pump body, a nozzle is fixedly installed at the bottom of the nitrogen inlet, an annular pipe in communication with the feed pipe is fixedly installed at the end of the feed pipe, four connecting pipes equally circumferentially arranged and in communication with the annular pipe are fixedly installed in the annular pipe, and the other end of the connecting pipe is in communication with the nozzle.

[0008] Preferably, four equidistant circumferential fixed rings are fixedly installed in the annular pipe, and the fixed rings and the connecting pipe are staggered, four tapered grooves are formed in the fixed rings, and a tapered pipe matching the tapered grooves is fixedly installed in the tapered grooves.

[0009] Preferably, a temperature control nitrogen inlet communicating with the temperature control cavity is fixedly installed on the side wall of the jet pump body relative to the lower part of the feed pipe, and a temperature control nitrogen outlet fixedly installed on one side of the temperature control nitrogen inlet and communicating with the temperature control cavity is fixedly installed on the outer wall of the jet pump body.

[0010] Preferably, a pressure expansion mechanism communicating with the nozzle is fixedly installed in the temperature control cavity, the width of the pressure expansion mechanism is reduced by 30% to 50% compared with the width of other positions of the jet pump body, and a discharge pipe communicating with the pressure expansion mechanism is fixedly installed at the bottom of the pressure expansion mechanism.

[0011] Preferably, the nozzle is composed of a middle narrow through hole and two upper and lower relatively wider and symmetrically arranged tapered holes.

[0012] Preferably, a pneumatic conveying device is fixedly installed on the nitrogen inlet, and the temperature control nitrogen outlet is arranged between the horizontal plane of the feed pipe and the temperature control nitrogen inlet.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses a pneumatic conveying device makes nitrogen flow in the nozzle quickly and then through the atmospheric pressure difference between the inside and outside, makes propionyl chloride pass through the tapered pipe, further pressurizes through the pneumatic conveying device, makes propionyl chloride pass through the tapered pipe and forms the cavitation effect, and fully stirs and mixes the solute and solution in propionyl chloride. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure diagram of the inert gas jet pump is provided for the utility model;

[0016] Figure 2 A front view schematic diagram of the inert gas jet pump is provided for the utility model;

[0017] Figure 3 An annular pipe and connecting pipe schematic diagram of the inert gas jet pump is provided for the utility model;

[0018] Figure 4 A fixed ring and tapered pipe schematic diagram of the inert gas jet pump is provided for the utility model;

[0019] Figure 5 A fixed ring and tapered groove schematic diagram of the inert gas jet pump is provided for the utility model.

[0020] In the figure: 1, the injection pump body; 2, mixing chamber; 3, temperature control chamber; 4, feed pipe; 5, nitrogen inlet; 6, pneumatic conveying device; 7, nozzle; 8, annular pipe; 9, connecting pipe; 10, temperature control nitrogen inlet; 11, temperature control nitrogen outlet; 12, pressure expansion mechanism; 13, discharge pipe; 14, fixed ring; 15, conical pipe; 16, conical groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Reference Figures 1-5 An inert gas injection pump, comprising an injection pump body 1, the injection pump body 1 is internally provided with a mixing chamber 2 located at the upper part of the injection pump body 1, the injection pump body 1 is internally provided with a temperature control chamber 3 located at the lower part of the injection pump body 1, the side wall of the injection pump body 1 is fixedly installed with a feed pipe 4 in communication with the mixing chamber 2, the upper center position of the injection pump body 1 is fixedly installed with a nitrogen inlet 5, the bottom of the nitrogen inlet 5 is fixedly installed with a nozzle 7, the end of the feed pipe 4 is fixedly installed with an annular pipe 8 in communication with the feed pipe 4, the annular pipe 8 is fixedly installed with four connecting pipes 9 equally circumferentially arranged and in communication with the annular pipe 8, and the other end of the connecting pipe 9 is in communication with the nozzle 7.

[0023] The annular pipe 8 is fixedly installed with four fixed rings 14 equally circumferentially arranged, and the fixed rings 14 are arranged staggered with the connecting pipes 9, the fixed rings 14 are internally provided with four conical grooves 16, and the conical grooves 16 are fixedly installed with conical pipes 15 matched with the conical grooves 16.

[0024] The side wall of the injection pump body 1 is fixedly installed with a temperature control nitrogen inlet 10 in communication with the temperature control chamber 3 relative to the lower part of the feed pipe 4, and the outer wall of the injection pump body 1 is fixedly installed with a temperature control nitrogen outlet 11 in communication with the temperature control chamber 3 fixedly installed on one side relative to the temperature control nitrogen inlet 10.

[0025] The temperature control chamber 3 is fixedly installed with a pressure expansion mechanism 12 in communication with the nozzle 7, the width of the pressure expansion mechanism 12 is reduced by 30% to 50% compared with the width of other positions of the injection pump body 1, and the bottom of the pressure expansion mechanism 12 is fixedly installed with a discharge pipe 13 in communication with the pressure expansion mechanism 12.

[0026] The nozzle 7 is composed of a middle narrow through hole and two upper and lower relatively wider and symmetrically arranged conical holes.

[0027] The pneumatic conveying device 6 is fixedly installed on the nitrogen inlet 5, the temperature-controlled nitrogen outlet 11 is arranged between the feeding pipe 4 and the horizontal plane where the temperature-controlled nitrogen inlet 10 is located, and the reaction temperature in the temperature-controlled cavity 3 is adjusted through the temperature-controlled nitrogen outlet 11 and the temperature-controlled nitrogen inlet 10.

[0028] The function principle of the utility model can be described by the following operation modes:

[0029] The nitrogen in the nitrogen inlet 5 is pressurized by the pneumatic conveying device 6, so that the nitrogen rapidly passes through the nozzle 7, the nozzle 7 is arranged to be narrow in the middle and wide on both sides, so that the pressure between the nitrogen is reduced and the flow rate is increased when the nitrogen flows into the middle part of the nozzle 7, the nitrogen is further extruded and accelerated, and when the pressure between the nitrogen is less than the atmospheric pressure of the external air, the propionyl chloride in the feeding pipe 4 is pushed into the annular pipe 8 by the atmospheric pressure, so that the liquid fills the entire annular pipe 8, in the process of filling the annular pipe 8, the propionyl chloride passes through the conical pipe 15, if the propionyl chloride suddenly encounters a narrow area in the pipeline, due to the constant flow, the flow rate will increase and the pressure will be lost, according to Bernoulli's principle, the increase of the flow rate leads to the decrease of the pressure, a large turbulent flow is formed in the narrow area, if the flow rate is extremely high, the pressure is further reduced to form a cavitation effect, so that the solute and solution in the propionyl chloride are fully mixed, then pass through the connecting pipe 9 to the middle position of the nozzle 7, and are sprayed into the pressure expansion mechanism 12 by the nozzle 7, the material is further compressed, the flow rate is increased, and then the propionyl chloride is discharged from the discharge pipe 13.

[0030] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A noble gas jet pump comprising a jet pump body (1), characterized in that, The jet pump body (1) is provided with a mixing chamber (2) at the upper part of the jet pump body (1), and the jet pump body (1) is provided with a temperature control chamber (3) at the lower part of the jet pump body (1), the sidewall of the jet pump body (1) is fixedly installed with a feed pipe (4) communicated with the mixing chamber (2), the upper center of the jet pump body (1) is fixedly installed with a nitrogen inlet (5), the bottom of the nitrogen inlet (5) is fixedly installed with a nozzle (7), the end of the feed pipe (4) is fixedly installed with an annular pipe (8) communicated with the feed pipe (4), the annular pipe (8) is fixedly installed with four equally circumferentially arranged connecting pipes (9) communicated with the annular pipe (8), and the other end of the connecting pipe (9) is communicated with the nozzle (7).

2. A non-evaporable cold gas jet pump according to claim 1, wherein The annular pipe (8) is fixedly installed with four equally circumferentially arranged fixing rings (14), and the fixing rings (14) and the connecting pipes (9) are arranged alternately, the fixing ring (14) is provided with four tapered grooves (16), and the tapered grooves (16) are fixedly installed with tapered pipes (15) matched with the tapered grooves (16).

3. A non-evaporable cold gas jet pump according to claim 1, wherein The sidewall of the jet pump body (1) is fixedly installed with a temperature control nitrogen inlet (10) communicated with the temperature control chamber (3) below the feed pipe (4), and the outer wall of the jet pump body (1) is fixedly installed with a temperature control nitrogen outlet (11) communicated with the temperature control chamber (3) on one side of the temperature control nitrogen inlet (10).

4. A non-evaporable cold gas jet pump according to claim 1, wherein The temperature control chamber (3) is fixedly installed with a pressure expansion mechanism (12) communicated with the nozzle (7), the width of the pressure expansion mechanism (12) is reduced by 30% to 50% compared with the width of other positions of the jet pump body (1), and the bottom of the pressure expansion mechanism (12) is fixedly installed with a discharge pipe (13) communicated with the pressure expansion mechanism (12).

5. A non-evaporable cold gas jet pump according to claim 1, wherein The nozzle (7) is composed of a middle narrow through hole and two upper and lower relatively wider and symmetrically arranged tapered holes.

6. A non-evaporable cold gas jet pump according to claim 3, wherein The nitrogen inlet (5) is fixedly installed with a pneumatic conveying device (6), and the temperature control nitrogen outlet (11) is arranged between the horizontal plane where the feed pipe (4) and the temperature control nitrogen inlet (10) are located.

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