阅读说明：本技术 通风服配套的气冷源模拟设备 (Air cooling source simulation equipment matched with ventilation suit ) 是由 薛利豪 温冬青 顾昭 于丽华 吴建兵 王桂友 涂磊 郭华 张岩 施维茹 孙晓艳 于 2019-09-23 设计创作，主要内容包括：本发明提供了一种通风服配套的气冷源模拟设备,气冷源模拟设备与通风服配合使用,气冷源模拟设备包括：气体输送机械,气体输送机械与通风服连通；流量控制组件,流量控制组件与气体输送机械连接,以控制气体的流速；温度控制组件,温度控制组件与气体输送机械连接,以控制气体的温度；其中,流量控制组件包括相互串联的流量调节阀和节流组件,节流组件包括看至少两个相互并联的节流结构。本发明的技术方案有效地解决了现有技术中的通风服在研制过程中通入不同风温、流量组合的气体困难的问题。(The invention provides an air cooling source simulation device matched with a ventilated suit, which is matched with the ventilated suit for use, and comprises: the gas conveying machine is communicated with the ventilation suit; the flow control assembly is connected with the gas conveying machine to control the flow rate of the gas; the temperature control assembly is connected with the gas conveying machine to control the temperature of the gas; the flow control assembly comprises a flow control valve and a throttling assembly which are connected in series, and the throttling assembly comprises at least two throttling structures which are connected in parallel. The technical scheme of the invention effectively solves the problem that the ventilation suit in the prior art is difficult to introduce gas with different air temperature and flow combinations in the development process.)

1. An air cooling source simulation device for use with a ventilation suit (80), the air cooling source simulation device comprising:

a gas delivery mechanism (10), said gas delivery mechanism (10) being in communication with said ventilation suit (80);

a flow control assembly (20), said flow control assembly (20) being connected to said gas delivery machine (10) to control the flow rate of the gas;

a temperature control assembly (30), the temperature control assembly (30) being connected to the gas delivery machine (10) to control the temperature of the gas;

wherein the flow control assembly (20) comprises a flow regulating valve (21) and a throttling assembly (22) which are connected in series, and the throttling assembly (22) comprises at least two throttling structures which are connected in parallel.

2. The air-cooled source simulator associated with a ventilation suit according to claim 1, wherein said throttling assembly (22) comprises:

a first throttling arrangement in series with the flow regulating valve (21);

a second throttling arrangement in series with the flow regulating valve (21) and in parallel with the first throttling arrangement.

3. The air cooling source simulation equipment of claim 2, wherein the first throttling structure comprises a first throttling hole (221) and a cut-off valve (222) which are connected in series, and the second throttling structure comprises a second throttling hole (223), and the first throttling hole (221) is larger than the second throttling hole (223).

4. Air-cooled source simulation device for a ventilation suit according to claim 1, characterised in that the temperature control assembly (30) comprises:

the gas-liquid heat exchanger (31) is matched with the gas flow pipeline where the flow control assembly (20) is located so as to control the temperature of gas in the gas flow pipeline;

the water chiller (32) is connected with the gas-liquid heat exchanger (31) in series to control the temperature of liquid in the gas-liquid heat exchanger (31);

the water path adjusting valve (33) is arranged between the water chiller (32) and the gas-liquid heat exchanger (31) to control the liquid flow in the gas-liquid heat exchanger (31).

5. Air-cooled source simulation device for complete ventilation clothing according to claim 4, characterized in that a filter (34) is arranged between the waterway regulation valve (33) and the gas-liquid heat exchanger (31).

6. The air-cooled source simulation equipment matched with the ventilation suit according to claim 4, wherein the gas-liquid heat exchanger (31) is a shell-and-tube heat exchanger, the gas-liquid heat exchanger (31) comprises a shell (311) and a plurality of heat exchange tubes (312) arranged in the shell (311), the heat exchange tubes (312) are connected with the gas conveying machine (10), and the heat exchange tubes (312) are arranged in the direction of a regular triangle.

7. The air-cooled source simulation equipment for ventilation suits according to claim 6, wherein the gas-liquid heat exchanger (31) further comprises two end plates (313) and a plurality of baffle plates (314) disposed inside the shell (311), the end plates (313) are disposed at both ends of the heat exchange tube (312), the baffle plates (314) are fitted to the heat exchange tube (312), and the plurality of baffle plates (314) are disposed at intervals.

8. The air-cooled source simulation equipment for ventilation suits according to claim 7, wherein the baffles (314) are arranged alternately so that the liquid in the gas-liquid heat exchanger (31) is in full contact with the heat exchange tubes (312).

9. Air-cooled source simulation equipment as per claim 6, characterized in that the inside of the shell (311) comprises an air intake area (3111), a heat exchange area (3112) and an air outlet area (3113), the air intake area (3111) is provided with an air intake (3114), the air outlet area (3113) is provided with an air outlet (3115), and the heat exchange pipe (312) is arranged in the heat exchange area (3112).

10. The air-cooling source simulation apparatus for air clothes according to claim 9, wherein the air inlet port (3114) and the air outlet port (3115) are provided on the air flow line.

11. The apparatus for simulating an air-cooled source for use with a ventilation suit according to claim 9, wherein the heat transfer region (3112) is provided with a liquid inlet (3116) and a liquid outlet (3117), the liquid inlet (3116) is disposed upstream of a liquid flow in the heat transfer region (3112), and the liquid outlet (3117) is disposed downstream of the liquid flow in the heat transfer region (3112).

12. The air-cooled source simulator associated with ventilated clothing of claim 11, wherein the liquid inlet (3116) and the liquid outlet (3117) are both disposed above the housing (311).

13. The air-cooled source simulation equipment for ventilation suits according to claim 7, wherein the intervals between the plurality of baffles (314) with respect to the axis of the heat exchange tube (312) are the same, and the interval between adjacent two of the baffles (314) is 35 mm.

14. Air-cooled source simulation device for a complete ventilated suit according to claim 1, characterised in that the gas delivery mechanism (10) is arranged as an air compressor to compress air and deliver compressed air.

15. Air-cooled source simulation device for complete ventilation clothing according to claim 14, characterized in that a freeze dryer (40) is provided between the air compressor and the flow control assembly (20) to dry the air.

16. Air-cooled source simulation equipment for complete set of ventilation clothing according to claim 15, characterized in that the piping between the freeze dryer (40) and the air compressor is provided with a pressure reducing valve (50), a gas-water separation device (60) and a filtering device (70).

17. The gas cooling source simulation device for a complete set of ventilation clothing of claim 1, further comprising a control cabinet connected to the gas delivery machine (10), the flow control assembly (20) and the temperature control assembly (30) respectively for controlling the gas delivery machine (10), the flow control assembly (20) and the temperature control assembly (30).

Technical Field

The invention relates to the technical field of special protective clothing, in particular to air cooling source simulation equipment matched with a ventilated clothing.

Background

Ventilated clothing, or "air-cooled clothing", is a special protective garment that reduces the thermal load of the human body by sending low-temperature air into the specially-made garment. The principle of the ventilation suit is that air with a certain temperature is supplied by an air source system, the air is distributed to the whole body according to a certain proportion through a ventilation pipeline system, and the air flows between the body and the clothes, so that a proper microclimate is established between the surface of the human body and the clothes, and the heat balance of the human body is maintained.

In the development process of the ventilation suit, the cooling performance of the ventilation suit needs to be tested and researched under different temperature and humidity environmental conditions, and in the test process, gases with different wind temperature and flow combinations are introduced into the ventilation suit. Therefore, a gas cold source simulation device capable of being matched with the ventilation suit for use is needed, and the device can simulate gas cold sources with different flow rates and temperatures required by a ventilation suit test under a laboratory condition and introduce the gas cold sources into the ventilation suit for different environment cooling performance tests.

Disclosure of Invention

The invention mainly aims to provide air cooling source simulation equipment matched with a ventilation suit, so as to solve the problem that gas with different air temperature and flow combination is difficult to introduce in the development process of the ventilation suit in the prior art.

In order to achieve the above object, the present invention provides an air cooling source simulation device for a ventilation suit, the air cooling source simulation device is used in cooperation with the ventilation suit, and the air cooling source simulation device includes: the gas conveying machine is communicated with the ventilation suit; the flow control assembly is connected with the gas conveying machine to control the flow rate of the gas; the temperature control assembly is connected with the gas conveying machine to control the temperature of the gas; the flow control assembly comprises a flow control valve and a throttling assembly which are connected in series, and the throttling assembly comprises at least two throttling structures which are connected in parallel.

Further, the throttle assembly includes: the first throttling structure is connected with the flow regulating valve in series; and the second throttling structure is connected with the flow regulating valve in series and is connected with the first throttling structure in parallel.

Further, the first throttle structure comprises a first throttle hole and a cut-off valve which are connected in series, and the second throttle structure comprises a second throttle hole, wherein the first throttle hole is larger than the second throttle hole.

Further, the temperature control assembly includes: the gas-liquid heat exchanger is matched with the gas flow pipeline where the flow control assembly is located so as to control the temperature of gas in the gas flow pipeline; the water cooler is connected with the gas-liquid heat exchanger in series to control the temperature of liquid in the gas-liquid heat exchanger; and the water path adjusting valve is arranged between the water cooler and the gas-liquid heat exchanger so as to control the liquid flow in the gas-liquid heat exchanger.

Further, a filter is arranged between the water path adjusting valve and the gas-liquid heat exchanger.

Further, the gas-liquid heat exchanger is a shell-and-tube heat exchanger, the gas-liquid heat exchanger comprises a shell and a plurality of heat exchange tubes arranged in the shell, the heat exchange tubes are connected with the gas conveying machinery, and the heat exchange tubes are arranged in the direction of a regular triangle.

Further, the gas-liquid heat exchanger also comprises two end plates and a plurality of baffle plates which are arranged in the shell, the end plates are arranged at two ends of the heat exchange tube, the baffle plates are matched with the heat exchange tube, and the baffle plates are arranged at intervals.

Furthermore, two adjacent baffle plates are arranged in a staggered mode, so that liquid in the gas-liquid heat exchanger is in full contact with the heat exchange tube.

Further, the shell comprises an air inlet area, a heat exchange area and an air outlet area, the air inlet area is provided with an air inlet, the air outlet area is provided with an air outlet, and the heat exchange tube is arranged in the heat exchange area.

Further, the air inlet and the air outlet are arranged on the airflow pipeline.

Further, a liquid inlet and a liquid outlet are arranged on the heat exchange area, the liquid inlet is arranged at the upstream position where liquid in the heat exchange area flows, and the liquid outlet is arranged at the downstream position where liquid in the heat exchange area flows.

Further, liquid inlet and liquid outlet all set up the top at the casing.

Further, the distances between the plurality of baffles relative to the axis of the heat exchange tube are the same, and the distance between two adjacent baffles is 35 mm.

Further, the gas delivery mechanism is provided as an air compressor to compress air and deliver the compressed air.

Further, a freeze dryer is arranged between the air compressor and the flow control assembly to dry the air.

Furthermore, a pressure reducing valve, a gas-water separation device and a filtering device are arranged on a pipeline between the freeze dryer and the air compressor.

Furthermore, the air cooling source simulation equipment also comprises a control cabinet, and the control cabinet is respectively connected with the gas conveying machine, the flow control assembly and the temperature control assembly so as to control the gas conveying machine, the flow control assembly and the temperature control assembly.

By applying the technical scheme of the invention, the gas conveying machine is arranged to provide gas required by the ventilation suit during working, the flow control assembly is arranged to control the flow rate of the gas, and the temperature control assembly is arranged to change the temperature of the gas. Wherein, flow control valve and throttling assembly can make gaseous regulation more nimble reliable. At least two throttling structures which are connected in parallel can increase the adjusting range of the gas flow so as to meet the development requirements of more ventilation clothes. The technical scheme of the invention effectively solves the problem that the ventilation suit in the prior art is difficult to introduce gas with different air temperature and flow combinations in the development process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of an air cooling source simulation device in cooperation with a ventilated suit according to the present invention;

FIG. 2 is a schematic diagram showing the construction of a temperature control assembly according to the present invention;

FIG. 3 is a schematic view of the gas-liquid heat exchanger according to the present invention;

FIG. 4 shows a simplified side view of a gas-to-liquid heat exchanger according to the present invention;

FIG. 5 is a schematic view showing the construction of an end plate according to the present invention;

fig. 6 shows a schematic view of the structure of the baffle plate of the present invention.

Wherein the figures include the following reference numerals:

10. a gas delivery mechanism; 20. a flow control assembly; 21. a flow regulating valve; 22. a throttle assembly; 221. a first orifice; 222. a shut-off valve; 223. a second orifice; 23. an air flow meter; 30. a temperature control assembly; 31. a gas-liquid heat exchanger; 311. a housing; 3111. an air intake zone; 3112. a heat exchange zone; 3113. a gas outlet zone; 3114. an air inlet; 3115. an air outlet; 3116. a liquid inlet; 3117. a liquid outlet; 312. a heat exchange pipe; 313. an end plate; 314. a baffle plate; 315. a pull-up structure; 316. a support structure; 32. a water chiller; 33. a waterway regulating valve; 34. a filter; 35. a water flow meter; 40. a freeze dryer; 50. a pressure reducing valve; 60. a gas-water separation device; 70. a filtration device; 80. and (5) ventilating clothes.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 to 6, in the present embodiment, an air cooling source simulation device is used with a ventilation suit 80, and the air cooling source simulation device includes a gas delivery machine 10, a flow control assembly 20, and a temperature control assembly 30. The gas delivery machine 10 is in communication with a ventilation suit 80. The flow control assembly 20 is coupled to the gas delivery machine 10 to control the flow rate of the gas. A temperature control assembly 30 is coupled to the gas delivery machine 10 to control the temperature of the gas. Wherein, flow control assembly 20 includes flow control valve 21 and throttle assembly 22 that establish ties each other, and throttle assembly 22 includes seeing at least two throttle structures that connect in parallel each other.

By applying the technical scheme of the embodiment, the gas conveying machine 10 is arranged to provide gas required by the ventilation suit 80 during working, the flow control assembly 20 is arranged to control the flow rate of the gas, and the temperature control assembly 30 is arranged to change the temperature of the gas, so that the ventilation suit 80 can be filled with gas with different wind temperatures and flow combinations during the development process, and different requirements of the ventilation suit 80 during the development process can be met. Wherein, the flow regulating valve 21 and the throttling component 22 can make the regulation of the gas more flexible and reliable. At least two throttling structures which are connected in parallel can increase the adjusting range of the gas flow so as to meet the development requirements of more ventilation clothes 80. The technical scheme of this embodiment has solved the ventilation clothes 80 among the prior art effectively and has let in the difficult problem of the gas of different wind temperature, flow combination in the development process.

As shown in fig. 1 to 6, in the solution of the present embodiment, the throttling assembly 22 includes a first throttling structure and a second throttling structure. The first throttling arrangement is in series with the flow regulating valve 21. The second throttling arrangement is connected in series with the flow regulating valve 21 and in parallel with the first throttling arrangement. The above-described configuration allows the throttle assembly 22 to have a greater range of adjustment. The throttle assembly 22 may be provided with more throttle structures as desired.

It is noted that an air flow meter 23 is further connected to one side of the flow regulating valve 21 so as to visually recognize the flow rate of the gas in the gas flow line. The gas flow rate here is similar or identical to the gas flow rate when entering the ventilation suit 80.

As shown in fig. 1 to 6, in the present embodiment, the first throttle structure includes a first throttle hole 221 and a shut valve 222 connected in series with each other, and the second throttle structure includes a second throttle hole 223, and the first throttle hole 221 is larger than the second throttle hole 223. The above-described configuration allows the operating range of the throttle assembly 22 to be adjusted as desired. Specifically, the shut-off valve 222 is opened and closed, and the shut-off valve 222 may be connected in series to the second orifice 223 as necessary. When the throttle structure is provided more, the number of the shut valves 222 can be increased adaptively. Further, the shut-off valve 222 is an electronic valve, so that automatic control can be realized.

As shown in fig. 1 to 6, in the solution of the present embodiment, the temperature control assembly 30 includes a gas-liquid heat exchanger 31, a water chiller 32, and a water path regulating valve 33. The gas-liquid heat exchanger 31 is adapted to the gas flow pipeline where the flow control assembly 20 is located to control the temperature of the gas in the gas flow pipeline. The water chiller 32 is connected in series with the gas-liquid heat exchanger 31 to control the temperature of the liquid within the gas-liquid heat exchanger 31. The water path regulating valve 33 is provided between the water chiller 32 and the gas-liquid heat exchanger 31 to control the flow rate of the liquid in the gas-liquid heat exchanger 31. The above structure can control the temperature of the gas in the gas flow pipeline, and then test the performance of the ventilation suit 80 at various gas temperatures according to the research and development requirements.

As shown in fig. 1 to 6, in the present embodiment, a filter 34 is provided between the water path adjustment valve 33 and the gas-liquid heat exchanger 31. The filter 34 in the above structure can prevent the clogging of the gas-liquid heat exchanger 31 during operation.

As shown in fig. 1 to 6, in the technical solution of the present embodiment, the gas-liquid heat exchanger 31 is a shell-and-tube heat exchanger, the gas-liquid heat exchanger 31 includes a shell 311 and a plurality of heat exchange tubes 312 disposed in the shell 311, the heat exchange tubes 312 are connected to the gas conveying machine 10, and the plurality of heat exchange tubes 312 are arranged in a regular triangle direction. The above structure can make the arrangement of the plurality of heat exchange pipes 312 more compact. The arrangement has a better heat exchange effect than a square arrangement.

It should be noted that the regular triangle directional arrangement in this embodiment means that the centers of the cross sections of the arranged heat exchange tubes 312 are regular triangles. For example, three heat exchange tubes 312 close to each other are regarded as a unit, and the centers of the cross sections of the heat exchange tubes 312 in the unit are three intersection points of a regular triangle. Reference is made in particular to the description accompanying fig. 5 and 6. Preferably, the number of the heat exchange tubes 312 is 61.

As shown in fig. 1 to 6, in the solution of the present embodiment, the gas-liquid heat exchanger 31 further includes two end plates 313 and a plurality of baffles 314 disposed in the shell 311, the end plates 313 are disposed at both ends of the heat exchange tube 312, the baffles 314 are adapted to the heat exchange tube 312, and the plurality of baffles 314 are disposed at intervals. In the structure, the two end plates 313 are arranged to limit the flowing area of the liquid, the baffle plates 314 are arranged to guide the flowing direction of the liquid, and the end plates 313 and the baffle plates 314 are arranged to enable the liquid entering the gas-liquid heat exchanger 31 to be in more sufficient contact with the heat exchange tubes 312, so that the heat exchange efficiency is improved.

As shown in fig. 1 to 6, in the solution of the present embodiment, two adjacent baffles 314 are arranged in a staggered manner so as to make the liquid in the gas-liquid heat exchanger 31 fully contact with the heat exchange tubes 312. The above structure can improve the heat exchange efficiency of the gas-liquid heat exchanger 31.

As shown in fig. 1 to 6, in the solution of the present embodiment, the inside of the housing 311 includes an air inlet area 3111, a heat exchange area 3112 and an air outlet area 3113, the air inlet area 3111 is provided with an air inlet 3114, the air outlet area 3113 is provided with an air outlet 3115, and the heat exchange pipe 312 is disposed in the heat exchange area 3112. An air inlet 3114 and an air outlet 3115 are provided on the air flow line. The gas inlet area 3111 in the above structure is in gas communication with the upstream of the gas flow pipeline, the gas outlet area 3113 is in gas communication with the downstream of the gas flow pipeline, and the gas in the gas outlet area 3113 is the gas after temperature conversion in the heat exchange area 3112.

As shown in fig. 1 to 6, in the solution of this embodiment, a liquid inlet 3116 and a liquid outlet 3117 are disposed on a heat exchange area 3112, the liquid inlet 3116 is disposed at an upstream position of the heat exchange area 3112 where liquid flows, and the liquid outlet 3117 is disposed at a downstream position of the heat exchange area 3112 where liquid flows. The above structure can make the liquid in the gas-liquid heat exchanger 31 fully contact with the heat exchange tube 312, specifically, flow through the liquid inlet 3116 and the liquid outlet 3117.

As shown in fig. 1 to 6, in the solution of the present embodiment, the liquid inlet 3116 and the liquid outlet 3117 are both disposed above the housing 311. The connecting structure on the liquid inlet 3116 and the liquid outlet 3117 is convenient to disassemble and low in maintenance cost.

As shown in fig. 1 to 6, in the solution of the present embodiment, the distances between the plurality of baffles 314 with respect to the axis of the heat exchange tube 312 are the same, and the distance between two adjacent baffles 314 is 35 mm. The structure can enable the heat exchange effect of different positions of each heat exchange pipe 312 to be similar, and the stable work of the gas-liquid heat exchanger 31 is ensured. 35mm is a preferable pitch, and the pitch may be set at 10mm to 50mm as needed.

As shown in fig. 1 to 6, in the solution of the present embodiment, the gas conveying machine 10 is configured as an air compressor to compress air and convey the compressed air. The structure can realize the gas delivery by utilizing air, thereby saving the cost of a gas source.

As shown in fig. 1 to 6, in the solution of the present embodiment, a freeze dryer 40 is disposed between the air compressor and the flow control assembly 20 to dry air. The structure can keep the air in the ventilation suit 80 dry, so that the operator can keep dry and comfortable, and meanwhile, the phenomenon that water vapor is accumulated in the ventilation suit 80 to increase the weight of the ventilation suit 80 after entering the ventilation suit 80 can be avoided.

As shown in fig. 1 to 6, in the solution of the present embodiment, a pressure reducing valve 50, a gas-water separation device 60 and a filtering device 70 are disposed on a pipeline between the freeze dryer 40 and the air compressor. The arrangement of the pressure reducing valve 50 in the structure is used for reducing the air outlet pressure of the air compressor, so that the influence and even damage to an air flow pipeline caused by too fast air outlet are avoided, and the air outlet stability is ensured. The gas-water separation device 60 can reduce the moisture of the gas entering the gas flow pipeline, and the filter device 70 can prevent impurities in the air from entering the gas flow pipeline, so that the smoothness of the gas flow pipeline is ensured.

As shown in fig. 1 to fig. 6, in the technical solution of this embodiment, the gas cooling source simulation apparatus further includes a control cabinet, and the control cabinet is respectively connected to the gas delivery machine 10, the flow control module 20 and the temperature control module 30 to control the gas delivery machine 10, the flow control module 20 and the temperature control module 30. Above-mentioned structure can control the supporting air cooling source analog device of ventilation clothes 80 better, can realize automatic or semi-automatization control as required, improves work efficiency.

It should be noted that, in the present invention, a pulling structure 315 is disposed above the shell 311 to facilitate the transfer of the gas-liquid heat exchanger 31. The bottom of the housing 311 is provided with a support structure 316 to facilitate the placement of the gas-liquid heat exchanger 31, which can be placed more stably, preferably with a plurality of leg structures for supporting.

It is noted that a water flow meter 35 is provided between the water chiller 32 and the gas-liquid heat exchanger 31 so as to measure the flow rate of water between the water chiller 32 and the gas-liquid heat exchanger 31. The material of the gas-liquid heat exchanger 31 in the present invention is preferably stainless steel.

It is worth noting that the invention is carried out by connecting the large orifice and the small orifice in parallel and then connecting the large orifice and the air flow regulating valve 21 in series, the cut-off valve 222 arranged at the front section of the large orifice is opened when large flow is needed, compressed air enters the system through the two orifices, the cut-off valve 222 is closed when small flow is needed, the compressed air enters the system only through the small orifice, the regulation of the orifices is input for preliminary flow regulation, the air flow regulating valve 21 belongs to precise regulation, and the advantage of the serial combination of the two is that large-range, rapid and precise flow control can be realized.

Note that the temperature reduction of the gas is performed in the gas-liquid heat exchanger 31. The control system determines temperature control parameters according to the difference relation between the temperature of the output gas and the actual demand, and then controls working parameters of the water path adjusting valve 33 and the water chiller 32 to adjust.

From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects that the gas delivery machine 10 is configured to provide the gas required by the ventilation suit 80 during operation, the flow control assembly 20 is configured to control the flow rate of the gas, and the temperature control assembly 30 is configured to change the temperature of the gas, and the above-mentioned structure can introduce the gas with different wind temperatures and flow combinations into the ventilation suit 80 during the development process, so as to meet different requirements of the ventilation suit 80 during the development process. Wherein, the flow regulating valve 21 and the throttling component 22 can make the regulation of the gas more flexible and reliable. At least two throttling structures which are connected in parallel can increase the adjusting range of the gas flow so as to meet the development requirements of more ventilation clothes 80. The technical scheme of the invention effectively solves the problem that the ventilation suit 80 in the prior art is difficult to introduce gas with different air temperature and flow combinations in the development process.

The invention has the following advantages:

compressed air in the atmosphere is used as an air source, so that the cost is low;

secondly, a flow and temperature feedback control and regulation mode is adopted, so that the precision is high;

and thirdly, the gas output with large flow and wide temperature range is adopted, so that the application of various occasions can be met.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.