Heating chamber of a heat pump

Abstract

The embodiment of the present application provides a heating chamber of a heat pump, which comprises a shell, a pipeline and a first tube plate and a second tube plate; the pipeline, the first tube plate and the second tube plate are arranged in the shell, the pipeline is fixed between the first tube plate and the second tube plate, and the first tube plate and the second tube plate are fixed in the shell. The shell of the embodiment of the present application is fixedly connected by a first sub-shell, a second sub-shell and a third sub-shell, so that the shell in the prior art is changed from an integrated structure to a split structure, and the split shell of the present application is beneficial to changing the sizes of different sub-shells according to actual needs, so as to better meet the needs of different heating capacities of the heating chamber in actual application.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of radioactive waste liquid treatment, and in particular to a heating chamber of a heat pump. BACKGROUND

[0002] The heating chamber of the heat pump in the prior art has a central circulating pipe type, a basket type and an external heating type, and the shell of the above heating chamber is mostly an integral structure. Such a heating chamber cannot meet the actual application needs of heat pumps for treating different amounts of liquid.

[0003] In addition, the heating chamber in the prior art does not have a structure for changing the steam flow property, resulting in low heating efficiency. SUMMARY

[0004] In view of this, in order to solve at least one aspect of the above problems, embodiments of the present application provide a heating chamber of a heat pump, which comprises a shell, a pipeline and first and second tube plates; the pipeline, the first tube plate and the second tube plate are arranged in the shell, the pipeline is fixed between the first and second tube plates, and the first and second tube plates are fixed inside the shell; the shell is formed with a steam inlet, a steam outlet, a liquid inlet, a liquid outlet and a condensate outlet; steam enters the shell through the steam inlet, heats the pipeline, and the steam flowing through the pipeline flows out of the steam outlet; liquid enters the heating chamber through the liquid inlet, flows into the pipeline, is heated in the pipeline, and then flows out of the liquid outlet; the condensate produced by the steam entering the heating chamber flows out of the condensate outlet; wherein the shell is fixedly connected by a first sub-shell, a second sub-shell and a third sub-shell, the first sub-shell is located below the first tube plate, the second sub-shell is located between the first and second tube plates, and the third sub-shell is located above the second tube plate, the first sub-shell forms a liquid containing space before the liquid flows into the pipeline after flowing into the heating chamber; and the third sub-shell forms a liquid containing space after the liquid flows out of the pipeline before flowing out of the heating chamber.

[0005] The shell of the embodiments of the present application is fixedly connected by a first sub-shell, a second sub-shell and a third sub-shell, thereby changing the integral structure of the shell in the prior art. The split shell of the present application is beneficial to changing the size of different sub-shells according to actual needs, so as to better meet the needs of different heating amounts of the heating chamber in actual applications. BRIEF DESCRIPTION OF DRAWINGS

[0006] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0007] Figure 1 FIG. 1 is a schematic view of a heating chamber of a heat pump according to an embodiment of the present application;

[0008] Figure 2Fig. 2 is a schematic view of the internal structure of the heating chamber of the heat pump according to an embodiment of the present application;

[0009] Figure 3 Fig. 3 is a partial schematic view of the heating chamber of the heat pump according to an embodiment of the present application;

[0010] Figure 4 Fig. 4 is a schematic view of the steam flow regulating member of the heating chamber of the heat pump according to an embodiment of the present application;

[0011] Figure 5 Fig. 5 is a schematic view of the internal structure of the heating chamber of the heat pump according to an embodiment of the present application.

[0012] It should be noted that the drawings are not necessarily drawn to scale, and that they are merely schematic representations that show only those specific details that are necessary for understanding the present application. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0014] It should be noted that, unless otherwise defined, technical or scientific terms used in the present application should be understood as their common meanings to those skilled in the art. If the terms “first”, “second”, etc. are used in the whole text, the terms “first”, “second”, etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance, sequence or implicitly indicating the number of the indicated technical features. It should be understood that the terms “first”, “second”, etc. can be interchanged under appropriate circumstances. If “and / or” appears in the whole text, it means that three parallel schemes are included, for example, “A and / or B” includes A scheme, or B scheme, or A and B schemes are satisfied at the same time. In addition, in order to facilitate the description, spatial relative terms such as “above”, “below”, “top”, “bottom”, etc. are used only to describe the spatial positional relationship between one device or feature and other devices or features as shown in the drawings, and it should be understood that it also includes different orientations in use or operation other than the orientation shown in the drawings.

[0015] Reference is made to Figures 1-3The embodiment of the present application provides a heating chamber of a heat pump, which comprises a shell 10, a pipeline 30 and a first tube plate 41 and a second tube plate 42; the pipeline 30, the first tube plate 41 and the second tube plate 42 are arranged in the shell 10, the pipeline 30 is fixed between the first tube plate 41 and the second tube plate 42, and the first tube plate 41 and the second tube plate 42 are fixed inside the shell 10; the shell 10 is formed with a steam inlet 21, a steam outlet 22, a liquid inlet 23, a liquid outlet 24 and a condensate outlet; steam enters the shell 10 through the steam inlet 21, heats the pipeline 30, and the steam flowing through the pipeline 30 flows out from the steam outlet 22; liquid enters the heating chamber through the liquid inlet 23, flows into the pipeline 30, is heated in the pipeline 30 and then flows out from the liquid outlet 24; and the condensate generated by the steam entering the heating chamber flows out from the condensate outlet; wherein the shell 10 is fixedly connected by a first sub-shell 11, a second sub-shell 12 and a third sub-shell 13, the first sub-shell 11 is located below the first tube plate 41, the second sub-shell 12 is located between the first tube plate 41 and the second tube plate 42, and the third sub-shell 13 is located above the second tube plate 42, and the first sub-shell 11 forms a containing space for liquid flowing into the heating chamber and before flowing into the pipeline 30; and the third sub-shell 13 forms a containing space for liquid flowing out of the pipeline 30 and before flowing out of the heating chamber.

[0016] The shell of the embodiment of the present application is fixedly connected by a first sub-shell, a second sub-shell and a third sub-shell, so that the shell in the prior art is of an integrated structure, and the split shell of the present application is beneficial to changing the sizes of different sub-shells according to actual needs, so as to better meet the needs of different heating capacities of the heating chamber in actual applications.

[0017] The heating chamber of the heat pump provided by the embodiment of the present application works as follows: steam enters the space formed by the second sub-shell 12 through the steam inlet 21, heats the liquid flowing in the pipeline 30 in the second sub-shell 12. Since the steam transfers part of heat to the liquid in the pipeline 30, the temperature of the steam is reduced, and the cooled steam partly flows out from the steam outlet 22 and partly changes into condensate and flows out from the condensate outlet.

[0018] The heating chamber of the heat pump provided by the embodiments of the present application is used in working, and the material liquid enters the first containing space formed by the first sub-housing 11 and the first tube plate 41 from the material liquid inlet 23. The first tube plate 41 is provided with a plurality of inlets communicated with the pipe 30, and the material liquid can enter the pipe 30 from the first containing space through the inlets communicated with the pipe 30. The material liquid entering the pipe 30 continues to flow along the pipe 30 and is heated by the steam flowing in the second sub-housing 12 in the pipe 30, and the temperature of the material liquid is increased. The heated material liquid flows into the second containing space formed by the third sub-housing 13 and the second tube plate 42 through a plurality of outlets formed on the second tube plate 42 and communicated with the pipe 30. The material liquid in the second containing space flows out from the material liquid outlet 24 and flows into the subsequent equipment.

[0019] In some embodiments, the shape parameters of the third sub-housing 13 are determined according to the processing amount of the material liquid and the flow rate of the material liquid.

[0020] According to the embodiments of the present application, the third sub-housing can be determined according to the amount of the material liquid to be processed and the flow rate of the material liquid, so that the heat pump is more adaptable to different application occasions.

[0021] In some embodiments, the shape parameters of the third sub-housing 13 are determined according to the evaporation vaporization pressure of the material liquid.

[0022] Since the material liquid output from the third sub-housing 13 enters the separation chamber, the shape parameters of the third sub-housing are adjusted according to the evaporation vaporization pressure of the material liquid, so that the material liquid entering the separation chamber can be kept in a desired state.

[0023] Referring to Figure 4 In some embodiments, the heating chamber of the heat pump further comprises a steam flow adjusting member 50 arranged inside the housing 10 and fixedly connected with the housing 10 and located at the steam inlet 21 and arranged to make the steam flow more uniform after the steam passes through the steam flow adjusting member 50. Since the steam enters from the steam inlet 21 arranged on one side of the housing 10, this way of entering steam from one side can make the steam flow in the housing 10 unevenly. In the present embodiment, the steam flow adjusting member 50 is arranged to make the steam flow more uniform and improve the heating efficiency.

[0024] In some embodiments, the steam flow regulating member 50 is formed in a cylindrical shape, and after being fixed, a gap is formed between the steam flow regulating member 50 and the shell 10. The cylindrical steam flow regulating member 50 can be coaxially arranged with the cylindrical shell 10, and the steam flow regulating member 50 and the shell 10 form an annular gap. The steam entering the shell 10 will first fill the annular gap, and then the steam in the annular gap will contact the pipe body through the steam flow regulating member 50. Through this arrangement, the steam can first enter the annular gap formed by the steam flow regulating member 50 and the shell 10, so as to realize the regulation of the uniformity of the steam flow through the steam flow regulating member 50.

[0025] In some embodiments, the steam flow regulating member 50 is in the shape of a trapezoid along the length direction of the shell 10, and the steam flow regulating member 50 surrounds the pipe 30. Through this arrangement, the steam flow can be more uniform. The cross section can be a cross section containing the axis of the shell 10, and the steam flow regulating member 50 can be symmetrical about the cross section. When the steam flow regulating member 50 is cut along the cross section, the projection of the cut steam flow regulating member 50 on the cross section in the direction perpendicular to the cross section is in the shape of a trapezoid.

[0026] The trapezoid can be a right trapezoid, the upper base and the lower base of the right trapezoid are parallel to the axis of the shell 10, the right angle side of the right trapezoid is parallel to the plane where the second tube plate 42 is located, the longer base of the trapezoid can be located on the side of the steam inlet 21, and the shorter base of the trapezoid can be located on the side opposite to the steam inlet 21. Through this arrangement, the steam flow can be more uniform.

[0027] Referring to Figure 5 In some embodiments, the heating chamber of the heat pump further comprises: a plurality of baffles 60, the plurality of baffles 60 are respectively arranged inside the shell 10 along the direction of the shell 10, and are arranged such that when the steam flows through the baffles 60, part of the steam is blocked by the baffles 60, and part of the steam flows through the baffles 60 through the space between the baffles 60 and the shell 10. When the steam flows from the steam inlet 21 to the steam outlet 22 in the shell 10, the baffles 60 can be arranged to increase the flow rate and disturbance of the steam in the shell 10, and improve the heat exchange efficiency between the steam and the liquid. The space between each baffle 60 and the shell 10 can be arranged non-collinearly, that is, the space between each baffle 60 and the shell 10 is respectively distributed at different positions in the circumferential direction of the shell 10.

[0028] In some embodiments, the baffles 60 are arranged above the condensate outlet. Through this arrangement, the accumulation of condensate below the shell can be avoided

[0029] In addition, in some embodiments of the present application, a plurality of condensate outlets can be arranged on the second shell to improve the efficiency of discharging the condensate from the shell.

[0030] Referring toFigure 5 In some embodiments, the heating chamber of the heat pump further comprises a rod 70, one end of the rod 70 is fixedly connected with the first tube plate 41, and the other end of the rod 70 is fixedly connected with the partial baffle 60. The baffle 60 is fixed at a specified position in the shell 10 through the rod 70.

[0031] Referring to Figure 2 and Figure 3 In some embodiments, the heating chamber of the heat pump further comprises an observation port, which is arranged on the first sub-shell 11 and the third sub-shell 13. The first observation port 81 can be arranged on the first sub-shell 11, and the second observation port 82 can be arranged on the third sub-shell 13. Through the first observation port 81 and the second observation port 82, the conditions in the first containing space and the second containing space can be conveniently observed.

[0032] Referring to Figure 2 and Figure 3 In some embodiments, the heating chamber of the heat pump further comprises a thermometer opening 90, which is arranged on the third sub-shell 13. Through the thermometer opening 90, a thermometer can be arranged to conveniently monitor the temperature in the second containing space.

[0033] In some embodiments, the pipeline 30 is symmetrically arranged between the first tube plate 41 and the second tube plate 42, and after installation, the surface of the first tube plate 41 remains horizontal. Through this arrangement, liquid collection can be avoided.

[0034] For the embodiments of the present application, it should also be noted that the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments without conflict.

[0035] The above are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A heating chamber of a heat pump, comprising: Shell, piping, and first and second tube sheets; The pipeline, the first tube sheet, and the second tube sheet are disposed within the housing, and the pipeline is fixed between the first tube sheet and the second tube sheet. The first tube sheet and the second tube sheet are fixed inside the housing; The shell has a steam inlet, a steam outlet, a liquid inlet, a liquid outlet, and a condensate outlet. Steam enters the shell through the steam inlet to heat the pipeline, and the steam flowing through the pipeline flows out through the steam outlet. The liquid enters the heating chamber from the liquid inlet, flows into the pipeline, is heated in the pipeline, and then flows out from the liquid outlet. The condensate produced by the steam entering the heating chamber flows out from the condensate outlet. The housing is formed by a first sub-housing, a second sub-housing, and a third sub-housing fixedly connected together. The first sub-housing is located below the first tube sheet, the second sub-housing is located between the first tube sheet and the second tube sheet, and the third sub-housing is located above the second tube sheet. The first sub-shell forms a space for containing the liquid that flows into the heating chamber and then into the pipeline; The third sub-shell forms a space for containing the liquid material after it flows out of the pipeline and before it flows out of the heating chamber; The heating chamber further includes a steam flow regulating component, which is disposed inside the housing and fixedly connected to the housing. It is located at the steam inlet and is configured to make the steam flow more uniform after passing through the steam flow regulating component. The steam flow regulating component is formed in a cylindrical shape, and after it is fixed, a gap is formed between it and the shell. The steam flow regulating element surrounds the pipeline; The steam flow regulating component has a right-angled trapezoidal cross-section along the length of the shell. The upper and lower bases of the right-angled trapezoid are parallel to the axis of the shell. The right-angled side of the right-angled trapezoid is parallel to the plane where the second tube sheet is located. The longer base of the right-angled trapezoid is located on the side of the steam inlet, and the shorter base of the right-angled trapezoid is located on the side opposite to the steam inlet.

2. The heating chamber according to claim 1, wherein, The external parameters of the third sub-shell are determined based on the throughput and flow rate of the liquid.

3. The heating chamber according to claim 2, wherein, The external parameters of the third sub-shell are determined based on the pressure of the evaporation and vaporization of the liquid.

4. The heating chamber according to claim 1, wherein, Also includes: Multiple baffles are disposed inside the housing along the direction of the housing and are arranged such that when steam flows through a baffle, some steam is blocked by the baffle and some steam flows through the space between the baffle and the housing.

5. The heating chamber according to claim 4, wherein, The baffle plate is positioned above the condensate outlet.

6. The heating chamber according to claim 5, wherein, It also includes rods, One end of the rod is fixedly connected to the first tube sheet, and the other end of the rod is fixedly connected to a portion of the baffle plate.

7. The heating chamber according to claim 1, wherein, It also includes an observation port. The observation port is located in the first sub-shell and the third sub-shell.

8. The heating chamber according to claim 1, wherein, It also includes the thermometer opening, The thermometer opening is located in the third sub-housing.

9. The heating chamber according to claim 1, wherein, The pipelines are symmetrically arranged between the first tube sheet and the second tube sheet, and after installation, the surface of the first tube sheet remains horizontal.

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