CN209944820U

CN209944820U - Throttling device

Info

Publication number: CN209944820U
Application number: CN201920189514.4U
Authority: CN
Inventors: 吴伟营
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-11
Filing date: 2019-02-11
Publication date: 2020-01-14
Anticipated expiration: 2029-02-11

Abstract

The utility model discloses a throttling device, which comprises a pressurizing part, a throttle valve and an ejector; and the outlet of the pressurizing component is communicated with the inlet of the throttling valve, and the outlet of the throttling valve is communicated with the inlet of the ejector. The throttling device of the utility model is completely suitable for being used in a heating type refrigerating generator set (or a heating type refrigerating unit), the unit can provide gravity pressurization on the using site, the flow resistance of the throttling valve is overcome through the gravity action of a working medium liquid column, and the outlet of the throttling device is ensured to provide low-temperature low-pressure vaporific working medium; the unit can not provide gravity supercharging on the using site, overcomes the flow resistance of the throttle valve through liquid pump supercharging, and ensures that the outlet of the throttle device provides low-temperature low-pressure vaporific working medium.

Description

Throttling device

Technical Field

The utility model relates to a refrigeration (power generation) equipment technical field especially relates to a throttling arrangement.

Background

Most of the existing throttling devices have no supercharging function, so that the flow resistance of the throttling valve cannot be overcome well, and the condition that the outlet of the throttling device provides low-temperature and low-pressure vaporific working medium cannot be ensured. Therefore, many of the conventional throttle devices are not applicable to a heating type refrigeration generator set (or a heating type refrigeration unit), for example, a "heating type refrigeration/power generation cycle" disclosed in patent document CN 208040471U.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a throttling arrangement with pressure boost effect.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a throttling device comprises a pressurizing part, a throttling valve and an ejector; and the outlet of the pressurizing component is communicated with the inlet of the throttling valve, and the outlet of the throttling valve is communicated with the inlet of the ejector.

The pressurizing part is a gravity pressurizing part or a liquid pump pressurizing part or a gravity liquid pump pressurizing part.

The gravity pressurizing part comprises a first liquid storage device and a second liquid storage device, an outlet of the first liquid storage device is communicated with an inlet of the second liquid storage device, an outlet of the second liquid storage device is communicated with an inlet of the throttling valve, and a height difference is formed between the first liquid storage device and the second liquid storage device.

The liquid pump pressurizing part comprises a third liquid storage device and a liquid pump, and an outlet of the third liquid storage device is communicated with an inlet of the liquid pump.

The gravity liquid pump pressurizing part comprises a first liquid storage device, a second liquid storage device and a liquid pump; the outlet of the first liquid reservoir is communicated with the inlet of the second liquid reservoir, and a height difference is formed between the first liquid reservoir and the second liquid reservoir; the outlet of the second liquid reservoir is communicated with the inlet of the liquid pump, and the outlet of the liquid pump is communicated with the inlet of the ejector.

The ejector is an ejector or an ejector.

The first liquid storage device and the second liquid storage device are both tank bodies.

The third reservoir is a tank.

Compared with the prior art, the utility model, its beneficial effect lies in:

the throttling device of the utility model is completely suitable for being used in a heating type refrigerating generator set (or a heating type refrigerating unit), the unit can provide gravity pressurization on the using site, the flow resistance of the throttling valve is overcome through the gravity action of a working medium liquid column, and the outlet of the throttling device is ensured to provide low-temperature low-pressure vaporific working medium; the unit can not provide gravity supercharging on the using site, overcomes the flow resistance of the throttle valve through liquid pump supercharging, and ensures that the outlet of the throttle device provides low-temperature low-pressure vaporific working medium.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a gravity supercharging throttle device according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a liquid pump supercharging throttle device provided in the second embodiment of the present invention;

fig. 3 is a schematic structural view of a pressurization throttling device of a gravity liquid pump according to a third embodiment of the present invention.

In the figure: 1. a gravity pressurizing component; 2. a throttle valve; 3. an ejector; 4. a liquid pump pressurizing part; 5. a gravity liquid pump pressurizing part; 11. a first reservoir; 12. a connecting pipe A; 13. a second reservoir; 41. a third reservoir; 42. a connecting pipe B; 43. a liquid pump; 51. a first reservoir; 52. a connecting pipe A; 53. a second reservoir; 54. and (6) a liquid pump.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings. It should be understood that the following examples are illustrative of the present invention and are not intended to limit the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular form of "the" is intended to include the plural form as well, unless the context clearly indicates otherwise; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items; as used herein, "low temperature and low pressure" and "high temperature and high pressure" are relative adjectives, i.e., "low" and "high" are relative; as used herein, "heating type refrigeration power generation" is a refrigeration power generation system, and patent documents such as CN208040471U "heating type refrigeration power generation cycle" are used, that is, the throttle device provided in the present embodiment can be applied to "throttle device" in technical solutions such as CN208040471U "heating type refrigeration power generation cycle".

Referring to fig. 1, the gravity supercharging throttling device provided by the first embodiment comprises a supercharging component 1, a throttle valve 2 and an ejector 3. The outlet of the pressurizing part 1 is communicated with the inlet of the throttle valve 2, and the outlet of the throttle valve 2 is communicated with the inlet of the ejector 3. The pressurizing part 1 is formed by communicating a first liquid storage device 11 and a second liquid storage device 13 through a connecting pipe A12 in the middle, the first liquid storage device 11 is higher than the second liquid storage device 13, the height of a liquid column formed by liquid working media in the first liquid storage device generates pressure on a throttle valve 2 at the outlet of the pressurizing part 1, and the liquid working media are throttled by the throttle valve 2 under the action of gravity of the liquid column.

Referring to fig. 2, the liquid pump supercharging and throttling device provided by the second embodiment includes a supercharging component 4, a throttle valve 2 and an ejector 3. The outlet of the pressurizing part 4 is communicated with the inlet of the throttle valve 2, and the outlet of the throttle valve 2 is communicated with the inlet of the ejector 3. The pressurizing part 4 is formed by communicating the third liquid reservoir 41 with the liquid pump 43 through a middle connecting pipe B42, and the liquid working medium in the third liquid reservoir 41 is pressurized by the liquid pump 43 and then flows through the throttle valve 2 to realize throttling.

Referring to fig. 3, the gravity liquid pump supercharging throttle device provided by the third embodiment includes a supercharging component 5, a throttle valve 2 and an ejector 3. The outlet of the pressurizing part 5 is communicated with the inlet of the throttle valve 2, and the outlet of the throttle valve 2 is communicated with the inlet of the ejector 3. The pressurizing part 5 is communicated with the first liquid reservoir 51 and the second liquid reservoir 53 through a connecting pipe A52 in the middle and then communicated to the throttle valve 2 through the liquid pump, the first liquid reservoir 51 is higher than the second liquid reservoir 53, and a liquid column formed by liquid working medium in the first liquid reservoir is pressurized again by the liquid pump 54 and then flows through the throttle valve 2 to realize throttling.

In the following description, a heating type refrigeration and power generation cycle disclosed in patent document CN208040471U is taken as an example, and if a gravity-type supercharging throttle device provided in the first embodiment is used as the throttle device in the system, the unit is used on site such that the position of the refrigerant condenser is higher than that of the evaporator, and the height difference between the two is greater than that of the gravity-type supercharging throttle device. An inlet of the gravity supercharging throttling device is connected with a refrigerant outlet of the refrigerant condenser, and an outlet of the gravity supercharging throttling device is connected with a refrigerant inlet of the evaporator. Therefore, the high-temperature and high-pressure liquid refrigerant flows into the gravity supercharging throttling device from the refrigerant condenser, is throttled and depressurized by the gravity supercharging throttling device, then is changed into low-temperature and low-pressure fog-shaped refrigerant, and then flows into the evaporator to exchange heat with the cooled medium.

As another example, when the liquid pump booster throttle device provided in the second embodiment is used as a throttle device in the system, an inlet of the liquid pump booster throttle device is connected to a refrigerant outlet of the refrigerant condenser, and an outlet of the liquid pump booster throttle device is connected to a refrigerant inlet of the evaporator. Therefore, the high-temperature and high-pressure liquid refrigerant flows into the liquid pump supercharging throttling device from the refrigerant condenser, is throttled and depressurized by the liquid pump supercharging throttling device, then is changed into low-temperature and low-pressure fog-shaped refrigerant, and then flows into the evaporator to exchange heat with the cooled medium.

Therefore, the throttling device provided by the embodiment is completely suitable for being used in a heating type refrigerating generator set (or a heating type refrigerating unit), the unit can provide gravity pressurization on the using site, the flow resistance of the throttling valve 2 is overcome through the gravity action of the working medium liquid column, and the condition that the outlet of the throttling device provides low-temperature and low-pressure vaporific working medium is ensured; the unit can not provide gravity supercharging on the using site, and the flow resistance of the throttle valve 2 is overcome by supercharging through the liquid pump 43, so that the outlet of the throttle device is ensured to provide low-temperature and low-pressure vaporific working medium.

Specifically, the

first reservoir

11, 51, the

second reservoir

13, 53, and the third reservoir 41 are all in the form of a tank, but may be in other structures as long as the liquid storage is realized. The ejector 3 may be in the form of an ejector or an eductor, and in the embodiment, the ejector is used.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A throttling device is characterized by comprising a pressurizing component, a throttling valve and an ejector; the outlet of the pressurizing component is communicated with the inlet of the throttling valve, and the outlet of the throttling valve is communicated with the inlet of the ejector;

2. The throttle device of claim 1, wherein the gravity-boosted member includes a first reservoir and a second reservoir, an outlet of the first reservoir communicates with an inlet of the second reservoir, an outlet of the second reservoir communicates with an inlet of the throttle valve, and a height difference is formed between the first reservoir and the second reservoir.

3. A throttle device according to claim 1, characterized in that the liquid pump pressurizing member comprises a third reservoir and a liquid pump, the outlet of the third reservoir being in communication with the inlet of the liquid pump.

4. The throttle device of claim 1, wherein the gravity liquid pump pressurizing member comprises a first reservoir, a second reservoir, and a liquid pump; the outlet of the first liquid reservoir is communicated with the inlet of the second liquid reservoir, and a height difference is formed between the first liquid reservoir and the second liquid reservoir; the outlet of the second liquid reservoir is communicated with the inlet of the liquid pump, and the outlet of the liquid pump is communicated with the inlet of the ejector.

5. A flow restriction device according to any one of claims 1 to 4 wherein the ejector is an eductor or an eductor.

6. A flow restriction device according to claim 2 or 4, wherein the first reservoir and the second reservoir are both tanks.

7. A flow restriction device according to claim 3, wherein the third reservoir is a tank.